CN102055501B - Electronic tour guide system and method based on bluetooth technology - Google Patents
Electronic tour guide system and method based on bluetooth technology Download PDFInfo
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- CN102055501B CN102055501B CN200910198499.0A CN200910198499A CN102055501B CN 102055501 B CN102055501 B CN 102055501B CN 200910198499 A CN200910198499 A CN 200910198499A CN 102055501 B CN102055501 B CN 102055501B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides an electronic tour guide system and method based on the bluetooth technology. The system is used for providing scenic spot introduction for tourists and providing tourist management for a scenic spot. The system comprises an internet server, mobile phone program software, mobile phones having a bluetooth communication function, scenic spot marks having a bluetooth communication receiving and transmission function, and a management server for a scenic spot background control and coordination center, wherein the mobile phone program software is stored in the internet server, can be downloaded and installed by the tourists, and is used for controlling bluetooth communication and broadcasting corresponding audio tour guide files in accordance with identities (IDs) of the scenic spot marks; the scenic spot marks having a bluetooth communication receiving and transmission function are arranged in corresponding scenic spots, and are used for transmitting IDs of specific scenic spot marks and receiving and transmitting corresponding tourist data information; and the control and coordination center analyzes and processes the collected tourist information to correspondingly manage the tourists. The invention has the advantages of ultra low power consumption, stability, high interference rejection, low construction cost and the like.
Description
Technical field:
The present invention relates to a kind of electronic guide system and method, particularly a kind ofly provide sight spot to explain orally for visitor and provide electronic guide system and the method for visitor management for scenic spot.
Background technology:
Guide's mode traditional in tourist industry is that guides directly leads visitor to walk while explain.This traditional guide's mode is applicable to group visitor, and the trend of current tourism industry development is that independent tour gets more and more.Along with the progress of science and technology and the development of tourism industry, electronic guide equipment continues to bring out.Electronic guide technology towards independent tour is also constantly ripe, and still based on guides, a loudspeaker oral account is carried to guide's mode of tourist group, electronic guide equipment towards group travel is little, have plenty of and use traditional FM radio machine technology, because its frequency affects by broadcasting station, interacts between tourist group, be therefore difficult to real application.Current use is comparatively feasible, is also the electronic guide equipment based on radio RF recognition technology comparatively widely, such as, asks the invention described in number 200610112677.X in patent.The problems such as but the electronic guide equipment of radio RF recognition technology does not still overcome, and transmission speed is slow, antijamming capability is low, extensibility is not high, user side application units cost is high, system management maintenance cost is high.
Bluetooth technology is an a kind of point-to-multipoint wireless speech and data transmission technology, and general transmission range is 10m, when reaching 100m after increase adapter.It can carry out wireless messages exchange comprising between numerous equipment such as mobile phone, PDA, wireless headset, notebook computer, related peripherals.The standard of bluetooth is IEEE802.15, is operated in 2.4GHz frequency band, and bandwidth is 1Mb/s.
Bluetooth technology is compared with conventional radio frequency recognition technology, and its main advantage is the multiple equipment of support, has certain penetrability, omnirange transmission.Use the fast frequency-hopped technology of self-adaptation in Bluetooth technology, thus there is the advantage that antijamming capability is strong, good confidentiality, communication quality are stable, also there is the features such as low-power consumption, low cost, flexibly safety and electromagnetic pollution be little simultaneously.The coded system of the forward error correction technique that bluetooth adopts and optimization can make Bluetooth technology be applied to various severe wireless environment.
Summary of the invention:
Problems such as the object of this invention is to provide a kind of tourism guide system based on Bluetooth technology, existing electronic guide system transmission speed is slow, antijamming capability is low, extensibility is not high, user side application units cost is high to solve, system management maintenance cost is high.
The problems such as another object of the present invention is to provide a kind of tourism guidance method based on Bluetooth technology, and existing electronic guide system transmission speed is slow, antijamming capability is low, extensibility is not high, user side application units cost is high to solve, system management maintenance cost is high.
The present invention proposes a kind of tourism guide system based on Bluetooth technology, for visitor provides tour description and direction, comprise Internet Server, handset program software, there is the mobile phone of blue tooth communication function, there is sight spot mark, the scenic spot Background control Consultation Center management server of bluetooth communication transmission-receiving function.
Wherein, described handset program software is deposited among Internet Server, and for visitor's download, installation, its major function is control Bluetooth data transfer and play particular piece of voice data file two aspect.The blue tooth communication function of this software automatic activation mobile phone when each unlatching, and within the scope of the Bluetooth signal of scenic spot, the invitation that bluetooth connects is set up in automatic acceptance, identify with the sight spot with bluetooth communication transmission-receiving function and connect, the data message of mutual client and the mark ID receiving sight spot feature, and find accordingly, play specific voice data file.
The described sight spot mark with bluetooth communication transmission-receiving function, refer to some Tour region each sight spots of being placed in, be connected for setting up bluetooth communication with the bluetooth cellular phone with guide's function, send specific sight spot mark ID, and the communication website of transmitting-receiving relevant user data information.Each has the sight spot mark composition topological network of bluetooth communication transmission-receiving function, covers whole scenic spot.Meanwhile, by actual measurement and arrangement, the position of laying with bluetooth communication node, scenic spot is divided into some subareas, the range of signal of each bluetooth communication node covers a subarea, does not conflict mutually, and the sight spot mark ID that bluetooth communication node is sent has the uniqueness pointing to area.After the sight spot mark with bluetooth communication transmission-receiving function is opened, it enters duty, at a certain time interval, in range of effective radiation, and the invitation command information of broadcast bluetooth communication connection establishment.
Described Internet Server, under being placed in wan networking environment, for the download of the special bluetooth procedures software of relevant mobile phone and language data file, visitor is after signing in server, after identity validation, the relevant cost of use of payment, the specific handset program file of authorized download and voice data file, while download voice data file, with the form of subsidiary digital visa book, the voice data file of download and the phone number of user are bundled, as the criterion whether this voice data file is legal.After this, this software and voice data file are arranged in its mobile phone used by visitor again.The network environment that Internet Server is placed in, includes but not limited to: ten thousand dimension internet, GPRS network, 2G/3G networks etc.
Described scenic spot Background control Consultation Center management server, its major function is, reception has the uploading data of the sight spot identification record of bluetooth communication transmission-receiving function and backs up.For the dredging of visitor, tourist's behavior analysis, emergency condition issue etc. provide data reference.
According to a kind of electronic guide system based on Bluetooth technology described in preferred embodiment of the present invention, its operation workflow is: time among the wireless signal coverage that visitor enters the sight spot mark with bluetooth communication transmission-receiving function, mobile phone receives to be identified by the specific sight spot with bluetooth communication transmission-receiving function and sends, after the invitation command information of connection establishment, cell phone software manipulation Bluetooth of mobile phone module is accepted the invitation, and connects and switches to mode of operation.By Bluetooth protocol establishment of connection, transmission user mobile phone and the sight spot with bluetooth communication transmission-receiving function identifys can carry out corresponding data with alternately.Data content herein includes but not limited to: the id information etc. that the information of user's input, the user ID of automatically distributing, software version, underlying hardware information, sight spot mark are issued.Wherein, the id information that sight spot mark is issued generates through cryptographic algorithm, forms unique corresponding with the ID contained by the voice data file of specific sight spot; After the sight spot with bluetooth communication transmission-receiving function in scenic spot is identified at and receives packet that mobile phone sends, through overwriting, uploading data to scenic spot Background control Consultation Center management server, data content herein includes but not limited to: the specific sight spot mark ID that mobile phone position is corresponding, and time, client mobile phone that data acquisition is uploaded enter the time at scenic spot, the mobile phone Back ground Information etc. of user.Handset program software, after receiving sight spot mark ID, starts to find and its voice data file one to one.As existed, then start to play speech data; If do not existed, then enter voice downloading mode.When mobile phone is while broadcasting one section of voice data file, the reasons such as another sub-scenic spot have been gone sight-seeing due to visitor, automatically after establishing new Bluetooth protocol connection, receive new specific sight spot mark ID, this software is then through judging to confirm with the selection of visitor determine whether stop the broadcasting of original voice and start to play new voice data file.
According to a kind of electronic guide system based on Bluetooth technology described in preferred embodiment of the present invention, the sight spot mark of its bluetooth communication transmission-receiving function, be made up of sight spot identification module, bluetooth module, mainly comprise host controller interface, baseband controller, bluetooth protocol repertory, application program, wireless transceiver etc.
The present invention separately proposes a kind of electronic guide method based on Bluetooth technology, and it comprises the following steps:
First, will be exclusively used in the program software of mobile phone as in wide area network server, download for visitor, install, this handset program software can control Bluetooth data transfer after opening and play particular piece of voice data file.
Secondly, the sight spot mark with bluetooth communication transmission-receiving function be placed in each relevant sight spot, scenic spot, and make it be in open duty, this sight spot mark major function is that setting up bluetooth communication with client is connected, send specific sight spot mark ID, and the relevant visitor's data message of transmitting-receiving.
Again, regularly the configure and maintenance of being correlated with is identified to the sight spot with bluetooth communication transmission-receiving function, check duty, change battery.
Then, the backup of being regularly correlated with to tool scenic spot Background control Consultation Center management server and maintenance, and the behavior analyzing visitor according to it, to the management work that visitor is correlated with.
Beneficial effect:
Owing to have employed above scheme, the beneficial effect that the present invention is possessed is:
1, super low-power consumption.Traditional electronic guide system, the content of its wireless telecommunications process often comprises the tour guide information at sight spot, so naturally make traffic and communication realize higher.Due to the electronic guide system that the present invention is different from the past, guide's sound recording data file at relevant sight spot be integrated into cell phone software and be built in the mobile phone of visitor, in the present system, the content of wireless telecommunications is only instruction two aspect of user profile, locality information.Therefore compared to traditional electronic guide system, the power consumption that whole system is run and address list decline greatly.
2, stable, antijamming capability is strong.Because whole system adopts bluetooth IEEE802.15 agreement, thus there is the advantage that antijamming capability is strong, good confidentiality, communication quality are stable.Meanwhile, the coded system of the forward error correction technique that adopts of bluetooth and optimization can make Bluetooth technology be applied to various severe wireless environment.Whole system can be made normally to work under atrocious weather environment.
3, cheap construction cost.Compared to traditional electronic guide system, electronic guide client of the present invention is the mobile phone that visitor carries, and eliminates the cost manufacturing electronic guide client computer.Because the mobile phone of present main flow all supports Bluetooth function substantially, so by the setting of software, using the client of the mobile phone of not specific visitor as electronic guide system, electronic guide activity can be carried out.Because the cost of software development is often low than hardware design, production cost, meanwhile, software can be replicated with regard to itself, long-term use.Therefore make the structure of whole electronic guide system, operating cost reduces greatly.
4, the region restriction of service is breached.Compared with traditional guide system, the present invention provides relevant mobile phone guide software and guide's data owing to adopting interconnected network mode, whole service is made to breach the restriction of region, for user, only need in its location by logging in the mode of wide-area network access, namely preparation before travel can be completed, and need not arrive location, scenic spot rent relevant guide machine and contact guide, this facilitates the trip arrangement of visitor greatly, also mitigates the human resources consumption of scenic spot in guide system management, operation simultaneously.
5, there is the function of extendible electronic guide system.By the networking identified scenic spot, the visitor carrying out scenic spot mark and cooperation control center goes sight-seeing the transmission of information, steering order information, can accomplish that the function of guide system of the present invention expands.Such as passenger flow information statistical function, visitor dredge function, the tracking of visitor and positioning function, urgent warning function, sight spot information deixis etc.
Certainly, implement arbitrary product of the present invention might not need to reach above-described all advantages simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of touring system based on Bluetooth technology of the embodiment of the present invention;
Fig. 2 is the operational flow diagram of a kind of handset program software of the embodiment of the present invention;
Fig. 3 is a kind of sight spot identification module structural scheme of mechanism with bluetooth communication transmission-receiving function of the embodiment of the present invention;
Fig. 4 is a kind of internal structural mechanism schematic diagram with the sight spot mark bluetooth chipset MT1020 of bluetooth communication transmission-receiving function of the embodiment of the present invention;
Fig. 5 be the embodiment of the present invention a kind of there is the sight spot mark of bluetooth communication transmission-receiving function sight spot identification module in MCU clock source design drawing;
Fig. 6 is a kind of dutycycle design diagram with the sight spot mark of bluetooth communication transmission-receiving function of the embodiment of the present invention;
Fig. 7 is a kind of cell-phone customer terminal of the invention process bluetooth chipset BCM2045 framed structure used schematic diagram;
Fig. 8 is a kind of cell-phone customer terminal of the invention process bluetooth chipset BCM2045 application used communication schematic diagram;
Fig. 9 is a kind of tourism guide system workflow schematic diagram based on Bluetooth technology of the invention process.
Embodiment:
Below in conjunction with accompanying drawing, illustrate the present invention.
Refer to Fig. 1, it is a kind of guide system structural representation based on Bluetooth technology of the embodiment of the present invention.It comprises Internet Server 101, handset program software 103, the cell-phone customer terminal 105 with blue tooth communication function, the sight spot mark 107 with bluetooth communication transmission-receiving function, and scenic spot Background control Consultation Center management server 109.Under Internet Server 101 is placed on wan environment, for lower mobile phone program software 103, handset program software 103 be installed in there is blue tooth communication function cell-phone customer terminal 105 within.In the network that the sight spot mark 107 with bluetooth communication transmission-receiving function forms, by the operation of handset program software 103 and the foundation of bluetooth communication agreement, the scenic spot tourist guide carrying out being correlated with is movable.The sight spot mark 107 with bluetooth communication transmission-receiving function, by client-related information, is uploaded to scenic spot Background control Consultation Center management server 109, and scenic spot control Consultation Center can be made to manage, control, analyze the behavior of visitor to a certain extent.
Refer to Fig. 2, it is the operational flow diagram of a kind of handset program software of the embodiment of the present invention.This software adopts the architecture design of task-driven, is keeping, under the prerequisite that the original repertoire of mobile phone is constant, in the mode of task-driven, adding the function of mobile phone Bluetooth voice receiver module.It is mainly divided into park mode and mode of operation two running statuses.In the operational mode, this program has again speech data broadcasting to download two operating submodes with speech data.After cell phone software initialization 201, activate initialize Bluetooth communication module 203, judge subsequently to enter park mode 205 or mode of operation 209, in the hibernation mode, the bluetooth module of mobile phone used is made to be in park mode, do not send and do not accept any data yet, to reach the object reducing power consumption.
After cell phone software initialization 201, if the bluetooth module activated does not detect the invitation command information of bluetooth communication connection establishment, then automatically enter park mode 205, and wake bluetooth module up to transience at a certain time interval, so that receive the invitation command information of communication connection establishment.Otherwise, then manipulate Bluetooth of mobile phone module and accept the invitation, connect and switch to mode of operation 209.
In the operational mode, this program has again speech data broadcasting 213 to download 211 two operating submodes with speech data, when downloading speech pattern 211 and running, voice download platform is logged in by mobile phone, through steps such as reimbursement of expense, confirmation, transmission downloads, complete the download 217 of particular piece of voice data file, while this data file of download, with the form of subsidiary digital visa book, the voice data file of download and the phone number of user are bundled, as the criterion whether this voice data file is legal; When playing speech pattern 213 and running, first judge mobile phone EMS memory voice data file whether legal 215, if the information among digital certificate conforms to phone number (namely data file is legal), the then play mode of activating software, as judged, voice data file is illegal, then suggestion voice illegal 219, and jump to speech data downloading mode, associated speech data file is downloaded in prompting.After software play mode activates, start to detect whether receive effective specific sight spot mark ID (221).On the one hand, as received sight spot mark ID, then handset program software is after receiving sight spot mark ID, starts to find and its voice data file one to one.As existed, then show the information that sight spot arrives, and enter next step program; If do not existed, then enter voice downloading mode.On the other hand, if can not receive sight spot mark ID, then point out user to make a mistake, and come back to software initialization state according to the confirmation of user, re-establish bluetooth communication and connect, collect specific sight spot mark ID.
Handset program is searching out the mark ID received with it, after corresponding voice data file, determines whether voice selecting pattern 223, if (for prompt modes), then shows sight spot and arrives prompting; If not (be by force switch mode), then whether cell phone software currently has speech data to play by judging, if do not had, just play voice 229 by mark ID, speech data is just being had in broadcasting 227 if current, then judge the ID corresponding to the voice data file play, ID whether consistent 231 is identified with the sight spot received, as unanimously, then do not carry out pointing out and change, as inconsistent, then confirming through user, stop original voice 233, start the voice data file 235 play corresponding to new ID.
At broadcasting voice or when not having bluetooth communication mutual for a long time, bluetooth module is switched to park mode by cell phone software, to reach the object of power saving.Meanwhile, will at a certain time interval, switch back mode of operation to transience, wake bluetooth module up, so that set up new connection, receive the specific identifier ID at new scenic spot.
Refer to Fig. 3, it is a kind of sight spot identification mechanism schematic diagram with bluetooth communication transmission-receiving function of the embodiment of the present invention.The design with the sight spot mark of bluetooth communication transmission-receiving function is divided into: sight spot identification module and bluetooth module two parts.Be made up of host controller interface, baseband controller, bluetooth protocol repertory, application program, wireless transceiver etc.Wherein, the MT1020 baseband controller of bluetooth module and PH2401 wireless transceiver are provided by MITEL company and PHILSAR company respectively, both coordinate the bluetooth module that can form complete low-power consumption, provide the high function to HCI (host controller interface) layer.Their positions in systems in which as shown in Figure 3.
MT1020 baseband controller is responsible for the function of bluetooth baseband part, complete the management of base band and link, comprise the support to SCO (synchronously) and ACL (asynchronous) connected mode, Error Control, the certification of Physical layer and encryption, link management etc., PH2401 realizes wireless receiving and the transmission of data, dotted line with upper part by for sight spot identification module.Baseband controller is by universal serial bus and PH2401 interface.Controlled by the implementing reading and writing frequency hopping to its internal register, tuning etc. other.
Refer to Fig. 4, its a kind of internal structural mechanism schematic diagram with the sight spot mark bluetooth chipset MT1020 of bluetooth communication transmission-receiving function being the embodiment of the present invention.MT1020 is made up of embedded microprocessor and bluetooth baseband peripheral hardware, and in this chip, system elder generation portion's clock can be low to moderate 5MHz, kernel supply voltage is 2V, hardware decode, support DMA transmit, and all these make this chip have super low-power consumption.Base band peripheral hardware completes important Bluetooth operation with minimum expense.On it hangs over " upwards integration module bus (UintegrationModule Bus) ".Be made up of following functional block.
401, bus interface: bus interface completes the communication between microprocessor and base band peripheral hardware, uses special BT bus transmissioning data in base band peripheral hardware between modules.
403, link controller: link controller and PH2401 wireless transceiver interface, the data sent are needed to be assembled in link controller, add synchronization character, frame head and CRC check word, and by albefaction, whether be encrypted and can be selected by user, the data received are by, error detection decoded at this.
405, queue management device: queue management device completes buffer RAM and link controller and USB or the intelligent DMA between serial host and audio interface and transmits.It can identify the bluetooth data packets of different-format, and can mutually change.
407, buffer RAM: be specifically designed to and store bluetooth data packets and variable, capacity is 12K Byte.
409, embedded microcontroller kernel: embedded microprocessor is made up of interior in the ARM7TMDI of 32 RISC frameworks processing unit, special module interaction bus (Inter-Module Bus) and some other functional block.
411, ARM7TDMI processor: ARM7TDMI is the embedded type CPU of a excellent performance, there is the arithmetic speed and very low-power consumption that are exceedingly fast, the Thumb instruction of its inside is utilized to press solution device can support 16 bit instructions, and support the function such as extended debugging, Fast Multiplication, it exchanges data by other functional block of module interaction bus.
413, peripheral control unit: peripheral control unit is the main thoroughfare that in MT1020A, internal bus and external bus carry out communication, it supports dynabus width, and can produce the control signal of access required for peripheral hardware.
415, serial i/O: serial i/O is used for connecting various series interface part, such as, with the device interface such as serial EEPROM, serial clock.
417, interruptable controller: ARM7TDMI processor accepts two kinds of interrupt request: regular interrupt request and fast interrupt requests.Priority required for user, all interruptions all can be arranged to the one in two types.Interruptable controller can process eight external interrupt and two internal interrupt.External interrupt can be programmed is arranged to level triggers or edge triggering.For reducing the time delay of interrupt response, to the interruption of every type, interruptable controller can carry out hardware priority judgement, thus accelerates the real-time response to interrupting.
419, timer/counter: MT1020A provide two two independent 32 bit timing device/counters, they and system clock synchronization, can poll in a program, also can be arranged to overflow and interrupt, and can automatically reset.Dma controller 421: have two DMA engine in this controller, they can be configured to a pair, thus the DMA transmission supporting two memory blocks in optional position in ARM7TDMI.Certainly, they also can independently use.
423, UART Universal Asynchronous Receiver Transmitter: UART Universal Asynchronous Receiver Transmitter interface shape is RS-232, support hardware is shaken hands and XON/XOFF software protocol, transceiver channel respectively has an impact damper, can poll in a program, also can use interruption form.The Baud rate generator of device inside is used for producing the data rate needed.
425, system storage: system storage hangs in UIM bus.MT1020 has the internal stationary RAM of 20KB, for the storage of program variable.User needs a plug-in external ROM/FLASH to store Bluetooth link control and management protocol code.In the next version of MT1020, ROM on sheet will be provided, and possess the ability storing personal code work, thus simplify user's design, reduce power consumption.
The wireless transceiver model that in a kind of embodiment of the present invention, bluetooth communication node adopts is for being PHILSAR company PH2401.The GaAs technology manufacture of PH2401 monolithic wireless transceiver, have the advantages such as high integration, super low-power consumption, volume are little, special optimization is used for 2.4GHz radio individual system, complete compatible bluetooth specification " Bluetoooth V1.0 ".It works in the ISM band of 2.4GHz, and upper fast frequency-hopped 79 channels (2.402GHz-2.408GHz) with the speed of 1600 times per second, dominant bit transfer rate can reach 1Mbit/s.PH2401 employing modulation index is Gaussian Frequency Shift Keying system (GFSK) modulation system of 0.3, channel width is 1MHz, and frequency deviation, between 140kHz-175kHz, meets bluetooth 2 grades and 3 grades of operations, send power can to programme between-10dBm-+2dBm setting, transmitting boundary is 10-100m.Receiver is made up of RF-IF low-converter, automatic growth control (AGC), wave filter, binary channels A/D converter and modulator.
Refer to Fig. 5, Fig. 6, the dutycycle design diagram that in its a kind of sight spot identification module with the sight spot mark of bluetooth communication transmission-receiving function being the embodiment of the present invention, MCU clock source design drawing and sight spot identify.Because bluetooth sight spot mark is responsible for the invitation instruction outwards broadcasting bluetooth communication foundation with certain frequency, if work long hours, the rising of entire system power consumption can be caused to a certain extent.The embodiment of the present invention reduces relevant power consumption by the design of the dutycycle that MCU in scenic focal point point identification module and sight spot identify.Select the MCU reducing power consumption by reduction chip operating voltage and Optimization Design of Electronic Circuits, the amplifier that this MCU inside adopts CMOS technology to manufacture, it is very low that operating voltage can be fallen by this amplifier.Meanwhile, power supply is adjustable.5V voltage is used for simulation process and brings out the best in each other, and 2V voltage is used in digital circuit just benefit.On the other hand, the half that the different operating voltage of employing is only low power dissipation design work is controlled to different operations.Important too to the energy optimization of external equipment.As, programmable external crystal-controlled oscillation, under requiring in different application, selects the frequency met the demands, and is also one of mode reducing power consumption.As shown in Figure 5, in design process, consider that MCU can have multiple clock source, be apparent that an external clock reference most.Crystal oscillator, ceramic resonator, internal controller clock or a clock generator are connected to suitable device pin.Except the parts of these generated clock signals, MCU can integrate front and back frequency division FLL (FLL).Front and back frequency divider carries out frequency division to input clock, and FLL can also frequency multiplication input clock frequency.When hardware design, after system is waken up in short-term, enter again long sleep state, be equipped with Clock management mechanism and just seem most important.As be less than 1 second at wakeup time system in adopt crystal oscillator or piezoelectric ceramics resonator, from sleep mode wakeup to perform instruction and have one section of time delay.MCU can not perform instruction between this time delay and starting period, and application circuit still can consumed power.In addition, no I/O pin is drawn high or dragged down; As possible, adopt internal oscillator, they are selections of low-power consumption as far as possible; Cutting off all no peripheral hardwares, is also the design that low-power consumption realizes.Inside and outside for the MCU peripheral hardware in portion and the program capability of MCU are taken into consideration, conscientiously can reduce system power dissipation.In addition, the successful key of low-power design is a MCU with multiple sleep pattern and clock module.The first is complete mode of operation, and all modules all work on power.The second is idle or standby mode, and MCU peripheral hardware works, and MCU does not work.The third is also most important one simultaneously concerning the powered battery of low-power consumption, is exactly sleep or stop mode.Under sleep pattern, equipment stops power consumption completely.The usual turning off system clock of sleep pattern, if also together cut off external clock reference, system power dissipation can reduce further.As shown in Figure 6, the communication function with Bluetooth of mobile phone module, rational dutycycle (Duty Cycle: in a string desirable pulse train, the ratio in the duration of positive pulse and pulse total cycle are responsible for for sight spot mark.) be under ensureing that reliable communications realizes prerequisite, the effective means of lower power consumption.Is divided into 4 time isometric time slot the cycle at the mode of operation place of each MCU, wherein, each time slot respectively completes " 2 Tx send cycle " and " 2 Rx receiving cycles ", and the total duration controlling above-mentioned four cycles is 5% of a time slot duration, residual time length is dormancy and the state conversion time of mark bluetooth module.
Refer to Fig. 7, Fig. 8, it is a kind of cell-phone customer terminal institute bluetooth chipset BCM2045 framed structure schematic diagram of the invention process and application communication schematic diagram.All chips are BCM2045 series, compatible with BCM2045SB2KFBG P22, are mainly the Bluetooth chip of Motorola Series Intelligent mobile phone.The BCM2045 of Broadcom be monolithic design, single-chip, independently, integrated 2.4GHz transceiver, be the application baseband processor of the bluetooth 2.0+EDR meeting Bluetooth specification completely; The compatible all versions compatibility standard of 1.1 or 1.2 (system) completely forward.Which eliminate the external flash of key components and parts and the needs of active device in integration of equipments process, thus decrease the cost that the area that takies circuit board and system realize Bluetooth system.In today of the most widely used silicon, BCM2045 EDR solution devise 0.13 μm of a large amount of CMOS technology.The design of this advanced person makes BCM2045 in all modes of operation alap to realize, and reduces power consumption and realize maintenance cost minimum.The design architecture of an EDR be standardized is had at BCM2045.Instead of to the wireless transformation of existing bluetooth 1.2.BCM2045 itself through optimizing, supports bluetooth 2.0+EDR.Make full use of the advantage of EDR by design, realize higher speed, larger join domain, reach more reliable performance.By adopting package technique on standard chips plate with BCM2045, the solution of cost optimization can be realized.The broad incorporation that application program is enabled by external passive and active component realizes.Incorporated the radio frequency of all sensitivities and bluetooth radio and baseband analog part, comprise the equipment of the most responsive high-frequency matched element, this eliminates the interference of plate level to greatest extent.Chip internal realizes regulating and controlling voltage, eliminates the needs to voltage stabilizer, available 1.8 to the 3.6V Power supply of operation of this chip.
Shown in Figure 9, it is a kind of tourism guide system workflow schematic diagram based on Bluetooth technology of the invention process.It comprises the following steps:
901, visitor anywhere, is paid by internet and downloads mobile phone guide's program software and voice data file, and be arranged among mobile phone.
903, visitor arrives scenic spot, and opens mobile phone guide software, and software initialization, Activate Phone bluetooth module.When not receiving connection and inviting instruction, be in park mode, and activate bluetooth in short-term, discontinuously, invite by instruction to receive to connect.
905, scenic spot bluetooth communication node broadcasts command information, is connected for setting up bluetooth communication with client.
907, mobile phone receives to connect and invites, and after connecting, switches to mode of operation, whether legally detects the voice data file existed.
909, after cell phone software confirms that voice document is legal, find corresponding voice data file according to knowing ID.
911, scenic spot bluetooth communication node, after connecting with client, sends specific sight spot, its position mark ID.
913, scenic spot bluetooth communication node by when connecting with client mutual and customer information that is that obtain is uploaded to Background control Consultation Center, for management control Consultation Center visitor.
915, cell phone software starts to play corresponding voice data file.
Compared to prior art, the present invention has the following advantages:
1, super low-power consumption.Traditional electronic guide system, the content of its wireless telecommunications process often comprises the tour guide information at sight spot, so naturally make traffic and communication realize higher.Due to the electronic guide system that the present invention is different from the past, guide's sound recording data file at relevant sight spot be integrated into cell phone software and be built in the mobile phone of visitor, in the present system, the content of wireless telecommunications is only instruction two aspect of user profile, locality information.Therefore compared to traditional electronic guide system, the power consumption that whole system is run and address list decline greatly.
2, stable, antijamming capability is strong.Because whole system adopts bluetooth IEEE802.15 agreement, thus there is the advantage that antijamming capability is strong, good confidentiality, communication quality are stable.Meanwhile, the coded system of the forward error correction technique that adopts of bluetooth and optimization can make Bluetooth technology be applied to various severe wireless environment.Whole system can be made normally to work under atrocious weather environment.
3, cheap construction cost.Compared to traditional electronic guide system, electronic guide client of the present invention is the mobile phone that visitor carries, and eliminates the cost manufacturing electronic guide client computer.Because the mobile phone of present main flow all supports Bluetooth function substantially, so by the setting of software, using the client of the mobile phone of not specific visitor as electronic guide system, electronic guide activity can be carried out.Because the cost of software development is often low than hardware design, production cost, meanwhile, software can be replicated with regard to itself, long-term use.Therefore make the structure of whole electronic guide system, operating cost reduces greatly.
4, the region restriction of service is breached.Compared with traditional guide system, the present invention provides relevant mobile phone guide software and guide's data owing to adopting interconnected network mode, whole service is made to breach the restriction of region, for user, only need in its location by logging in the mode of wide-area network access, namely preparation before travel can be completed, and need not arrive location, scenic spot rent relevant guide machine and contact guide, this facilitates the trip arrangement of visitor greatly, also mitigates the human resources consumption of scenic spot in guide system management, operation simultaneously.
5, there is the function of extendible electronic guide system.By the networking identified scenic spot, the visitor carrying out scenic spot mark and cooperation control center goes sight-seeing the transmission of information, steering order information, can accomplish that the function of guide system of the present invention expands.Such as passenger flow information statistical function, visitor dredge function, the tracking of visitor and positioning function, urgent warning function, sight spot information deixis etc.
Be only a specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of, all should drops in protection scope of the present invention.
Claims (8)
1. the electronic guide system based on Bluetooth technology, explain orally for providing sight spot for visitor and provide visitor management for scenic spot, it is characterized in that, be made up of Internet Server, handset program software, the mobile phone with blue tooth communication function, the sight spot mark with bluetooth communication transmission-receiving function, scenic spot Background control Consultation Center management server; Visitor passes through at Internet Server, download the software and the speech data that are exclusively used in mobile phone, in the Bluetooth signal coverage of scenic spot, receive residing sight spot in the mode of bluetooth communication and specifically identify ID, find and be built in the corresponding voice data file among mobile phone and play in advance, realize electronic guide function; Scenic spot Background control Consultation Center management server by identifying the customer information analysis and process of collecting to the sight spot with bluetooth communication transmission-receiving function, thus carries out the related management work of visitor;
Wherein, the described sight spot mark with bluetooth communication transmission-receiving function comprises mode of operation and park mode two states: described in there is the mode of operation place of the sight spot mark of bluetooth communication transmission-receiving function cycle comprise 4 time isometric time slot, each time slot completes 2 transmission cycles and 2 receiving cycles, and total duration of described 2 transmission cycles and 2 receiving cycles is 5% of a time slot duration, residual time length for described in there is park mode and time of State Transferring of the sight spot mark of bluetooth communication transmission-receiving function;
The described mobile phone with blue tooth communication function comprises mode of operation and park mode two states, by described handset program software control: described there is the mode of operation of the mobile phone of blue tooth communication function under, comprise again speech data play with speech data download two operating submodes; After described handset program software initialization, activate the mobile phone described in initialization with blue tooth communication function, the mobile phone described in judging subsequently with blue tooth communication function enters park mode or mode of operation, described there is the park mode of the mobile phone of blue tooth communication function under, described in there is blue tooth communication function mobile phone do not send and do not accept any data yet.
2. the electronic guide system based on Bluetooth technology according to claim 1, is characterized in that, described Internet Server, is under being placed in wan networking environment, and its major function is the download for handset program software and language data file.
3. the electronic guide system based on Bluetooth technology according to claim 1, is characterized in that, described handset program software, and its major function is control Bluetooth data transfer and play particular piece of voice data file two aspect; The blue tooth communication function of this software automatic activation mobile phone when each unlatching, and within the scope of the Bluetooth signal of scenic spot, the invitation that bluetooth connects is set up in automatic reception, identify with the sight spot with bluetooth communication transmission-receiving function and connect, the data message of mutual client and the mark ID receiving sight spot feature, and find accordingly, play specific voice data file.
4. the electronic guide system based on Bluetooth technology according to claim 1, it is characterized in that, the described sight spot mark with bluetooth communication transmission-receiving function, refer to and be somely placed in each sight spot of Tour region, be made up of sight spot identification module, bluetooth module, its major function is that setting up bluetooth communication with the mobile phone with blue tooth communication function is connected, and sends specific sight spot mark ID, and the communication website of the relevant visitor's data message of transmitting-receiving; The sight spot mark ID that it sends has the uniqueness pointing to area; After the sight spot mark with bluetooth communication transmission-receiving function is opened, it enters duty, at a certain time interval, in range of effective radiation, and the invitation command information of broadcast bluetooth communication connection establishment.
5. the electronic guide system based on Bluetooth technology according to claim 1, it is characterized in that, described scenic spot Background control Consultation Center management server, its major function is, receive the uploading data with the sight spot identification record of bluetooth communication transmission-receiving function, these data comprise: the mobile phone with blue tooth communication function enters the time at scenic spot, sends the time of feature sight spot mark ID, the information of visitor's input, visitor ID, software version, the underlying hardware information of distribution automatically, for providing data reference for management visitor and tourist's behavior analysis.
6., based on an electronic guide method for Bluetooth technology, explain orally for providing sight spot for visitor and provide visitor management for scenic spot, it is characterized in that, comprise the following steps:
The handset program software being exclusively used in mobile phone is placed in wide area network server, downloads for visitor, install;
This handset program software can control Bluetooth data transfer after opening and play particular piece of voice data file two aspect;
The sight spot mark with bluetooth communication transmission-receiving function is placed in each relevant sight spot, scenic spot, and makes it be in open duty;
This sight spot mark major function is that setting up bluetooth communication with mobile phone is connected, and sends specific sight spot mark ID, and the relevant visitor's data message of transmitting-receiving;
Set up scenic spot Background control Consultation Center management server, for receiving the uploading data of the sight spot identification record with bluetooth communication transmission-receiving function;
Wherein, the MCU described in the sight spot mark of bluetooth communication transmission-receiving function comprises mode of operation and park mode two states; Cycle at each mode of operation place comprises 4 time isometric time slot, each time slot completes 2 transmission cycles and 2 receiving cycles, and total duration of described 2 transmission cycles and 2 receiving cycles is 5% of a time slot duration, residual time length is the time of described park mode and State Transferring;
Described mobile phone comprises mode of operation and park mode two states, by described handset program software control: under the mode of operation of described mobile phone, comprises again speech data broadcasting and downloads two operating submodes with speech data; After described handset program software initialization, activate mobile phone described in initialization, judge that described mobile phone enters park mode or mode of operation subsequently, under the park mode of described mobile phone, described mobile phone does not send and does not accept any data yet.
7. the electronic guide method based on Bluetooth technology according to claim 6, it is characterized in that, it also comprises step:
Regularly the configure and maintenance of being correlated with is identified to the sight spot with bluetooth communication transmission-receiving function, check duty, change battery.
8. the electronic guide method based on Bluetooth technology according to claim 6, it is characterized in that, it also comprises step:
The backup of regularly scenic spot Background control Consultation Center management server being correlated with and maintenance, and analyze the behavior of visitor according to it, to the management work that visitor is correlated with.
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| CN105183924B (en) * | 2015-10-27 | 2020-05-12 | Oppo广东移动通信有限公司 | Information acquisition method and device |
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