CN207938192U - A kind of public bus voice station reporting instrument based on GPS - Google Patents

Abstract

The utility model discloses a kind of public bus voice station reporting instrument based on GPS, including MCU module, GPS module, Speech Record playback module, display module, key circuit module and power module, GPS module is connect with MCU module, for obtaining the real-time longitude of bus, latitude, temporal information by antenna and being sent to MCU module；Speech Record playback module is connect with MCU module, for the latitude and longitude information and sound broadcast information of each website that prestores in advance and for being compared real-time website latitude and longitude information with the website latitude and longitude information to prestore by MCU module when bus pulls in and reporting corresponding site information；Display module is connect with MCU module, current time and site information for showing bus stop station；Key circuit module is connect with MCU module, for carrying out hand-guided to voice station reporting instrument；Power module is connect with MCU module, the working power for providing MCU module.

Description

A kind of public bus voice station reporting instrument based on GPS

Technical field

The utility model is related to voice station reporting instrument field, more particularly to a kind of public bus voice station reporting instrument based on GPS.

Background technology

China in Recent Years achieves very gratifying achievement in economic development, and urban sprawl is very fast, can prop up per capita Continue to increase with income, private car ownership is incremented by year after year, and still, haze and traffic congestion situation are also increasingly severeer, traffic Very busy, in peak time on and off duty, traffic congestion is especially apparent, and many times motor vehicle is difficult to move even one step.Seriously reduce The service efficiency of urban road reduces citizens' activities efficiency, while increasing vehicle fuel consumption, to be generated to environment Many detrimental effects.

Bus is low cost, low emission, cheap as a kind of popular high cabin factor, high road utilization rate, high efficiency Trip mode, increasingly obtain the approval of society and the popularization of government, become the first choice of more and more people trip.However, by In cost of investment problem, many places are still using old public transport, and public transport reporting station system is often also relatively backward, this is just significantly Reduce the comfort level by bus of passenger.Pervious artificial mode of calling out the stops cannot meet the needs of present, many places all The voice for carrying out self-service ticketing automatically reports the bus stop to be called out the stops and be prompted.

Voice station reporting instrument technology is mainly the following at present：

1) manual speech station reporting instrument：It is to be controlled to operate by crew member, when public transport pulls in, is entered the station by pressing Button is called out the stops, and when bus is outbound, is pressed outbound button, is started the station name for forecasting lower station, recorded by serial number each Website.Advantage is advantage of lower cost, the disadvantage is that driver needs to pay attention to the state of website and the serial number of website, the safety driven It is substantially reduced.The accuracy called out the stops depends on the qualification of driver's manual operation；

2) door control speech station reporting instrument：It is opened the door by connecting, conversion signal at closing time and voice station reporting instrument, opening the door and It will automatically report the bus stop at closing time.Advantage is that cost is relatively low, the disadvantage is that the frequency for appearance mistake of calling out the stops is higher, for some reason Switch gate and causing sequence of calling out the stops is chaotic and will not call out the stops in advance.Whether the action that it relies primarily on switch gate is correct；

3) wireless beacon voice station reporting instrument：It is the beacon by setting transmitting in each bus station, works as public affairs Hand over vehicle close to when, will receive beacon signal, start to automatically report the bus stop, when far from Beacon Point when, that is, it is outbound, signal disappears therewith, start Forecast the next stop, this station reporting instrument advantage is to call out the stops accurately, the disadvantage is that radio emission beacons are needed in the foundation of each website, cost Quite big, structure is also cumbersome, and many website non-transformer supplies, when the bus quantity of stop is more, frequency interferences are very tight Weight, it is also inconvenient that user changes website.

The embodiment of the utility model is the improvement carried out regarding to the issue above to existing voice station reporting instrument.

Utility model content

In order to overcome deficiency in the prior art, the utility model to provide a kind of public bus voice station reporting instrument based on GPS, This station reporting instrument is that installation GPS automatic speech station reporters, automatic identification website simultaneously report site information on bus.It calls out the stops essence Really, without human intervention, without building facility outside any vehicle be this scheme biggest advantage, GPS voice station reporting instruments are unusual Accurately, timely, while it has revolutionized the behindhand type that traditional manual public bus voice is called out the stops.

In order to reach above-mentioned purpose of utility model, technical solution is as follows used by solving its technical problem：

A kind of public bus voice station reporting instrument based on GPS, including MCU module, GPS module, Speech Record playback module, display Module, key circuit module and power module, wherein：

The GPS module is connect with the MCU module, for by the antenna acquisition real-time longitude of bus, latitude, when Between information and be sent to the MCU module；

The Speech Record playback module is connect with the MCU module, for each website that prestores in advance latitude and longitude information and Sound broadcast information and for by real-time website latitude and longitude information and being prestored by the MCU module when bus pulls in Website latitude and longitude information is compared and reports corresponding site information；

The display module is connect with the MCU module, the current time for showing bus stop station and website letter Breath；

The key circuit module is connect with the MCU module, for carrying out hand-guided to voice station reporting instrument；

The power module is connect with the MCU module, the working power for providing the MCU module.

Further, the Speech Record playback module includes microphone and loud speaker, wherein：

The microphone connects the input terminal of the Speech Record playback module, and the longitude and latitude for each website that prestores in advance is believed Breath and sound broadcast information；

The loud speaker connects the output end of the Speech Record playback module, for reporting institute's predicate when bus pulls in The sound broadcast information to prestore in sound record/playback module.

Preferably, the Speech Record playback module uses ISD4004 type sound broadcast chips.

Further, further include clock circuit module, the clock circuit module is connect with the MCU module, for carrying For the clock signal of MCU module work.

Preferably, the clock circuit module uses DS1302 type low-power consumption real-time timepiece chips.

Further, further include crystal oscillating circuit module, the crystal oscillating circuit module is connect with the MCU module, for carrying For the clock frequency of MCU module work.

Further, further include reset circuit module, the reset circuit module is connect with the MCU module, for making Obtain the MCU module reliable reset.

Preferably, the MCU module uses STC89C54 type microcontrollers.

Preferably, the display module uses LCD12864 type dot matrix LCD modules.

Preferably, the power module is attached using USB interface with the MCU module.

The utility model due to using the technology described above, is allowed to compared with prior art, have the following advantages that and accumulate Pole effect：

The public bus voice station reporting instrument based on GPS of the utility model, whole system use integrated circuit, system succinctly big Side occupies small volume.Every station can also can on a display screen show that STC89C54 microcontrollers are as master with sound broadcast Controller control LCD12864 show current time, current site, by speech chip ISD4004 storage sites voice messaging with And speech play is come out in conjunction with loud speaker.Call out the stops it is accurate, without human intervention, without building facility outside any vehicle.It can be real Corresponding site name is quoted at existing close friend's people's human-computer interaction circle real-time display current time, every station automatically, can be with after power down It preserves the information such as the site name on route not lose, while uplink and downlink route, whole system can be arranged in bus stop reporting device It is compact to design, it is reasonable for structure, it is convenient for practical application.

Description of the drawings

It is required in being described below to embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described.It is clear that the accompanying drawings in the following description is only some embodiments of the utility model, For those skilled in the art, without creative efforts, other be can also be obtained according to these attached drawings Attached drawing.In attached drawing：

Fig. 1 is a kind of system block diagram of the public bus voice station reporting instrument based on GPS of the utility model；

Fig. 2 be the hardware interface circuit of GPS module in a kind of public bus voice station reporting instrument based on GPS of the utility model with And download routine interface figure；

Fig. 3 is Speech Record playback module principle figure in a kind of public bus voice station reporting instrument based on GPS of the utility model；

Fig. 4 is clock circuit module figure in a kind of public bus voice station reporting instrument based on GPS of the utility model；

Fig. 5 is crystal oscillating circuit module, reset circuit mould in a kind of public bus voice station reporting instrument based on GPS of the utility model Block and Fundamentals of Mono-Chip Computers figure；

Fig. 6 is display module schematic diagram in a kind of public bus voice station reporting instrument based on GPS of the utility model；

Fig. 7 is key circuit module map in a kind of public bus voice station reporting instrument based on GPS of the utility model.

【Primary symbols explanation】

1-MCU modules；

2-GPS modules；

3- Speech Record playback modules；

31- microphones；

32- loud speakers；

4- display modules；

5- key circuit modules；

6- power modules；

7- clock circuit modules；

8- crystal oscillating circuit modules；

9- reset circuit modules.

Specific implementation mode

Below with reference to the attached drawing of the utility model, the technical scheme in the embodiment of the utility model is carried out clear, complete Whole description and discussion, it is clear that as described herein is only a part of example of the utility model, is not whole reality Example is based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, belongs to the scope of protection of the utility model.

As shown in Figure 1, the utility model discloses a kind of public bus voice station reporting instrument based on GPS, including MCU module 1, GPS module 2, Speech Record playback module 3, display module 4, key circuit module 5 and power module 6, wherein：

The GPS module 2 is connect with the MCU module 1, for by the antenna acquisition real-time longitude of bus, latitude, Temporal information is simultaneously sent to the MCU module 1, the hardware interface circuit and download routine interface such as Fig. 2 of the GPS module 2 It is shown；

The Speech Record playback module 3 is connect with the MCU module 1, the latitude and longitude information for each website that prestores in advance And sound broadcast information and for when bus pulls in by the MCU module 1 by real-time website latitude and longitude information with it is pre- The website latitude and longitude information deposited is compared and reports corresponding site information；

The display module 4 is connect with the MCU module 1, the current time for showing bus stop station and website Information；

The key circuit module 5 is connect with the MCU module 1, for carrying out hand-guided to voice station reporting instrument；

The power module 6 is connect with the MCU module 1, the working power for providing the MCU module 1.This implementation In example, the power module 6 is attached using USB interface with the MCU module 1.

Further, the Speech Record playback module 3 includes microphone 31 and loud speaker 32, wherein：

The microphone 31 connects the input terminal of the Speech Record playback module 3, the longitude and latitude for each website that prestores in advance Spend information and sound broadcast information；

The loud speaker 32 connects the output end of the Speech Record playback module 3, for reporting institute when bus pulls in Whether the sound broadcast information to prestore in predicate sound record/playback module 3, reminding passengers need lower station.

Preferably, the Speech Record playback module 3 uses ISD4004 type sound broadcast chips.In the present embodiment, ISD4004 type sound broadcast chips can realize 8 to 16 minutes long-time speech recording and reproducings, when can meet the recording called out the stops completely Between demand, ISD4004 is internally integrated the voice restoration technology of high quality, and chip has 100,000 recording cycles, fully meets requirement, In addition the information after chip power-down can be preserved up to 100 years as long as.The name of each platform of reading artificial in advance is one by one It records and is preserved into chip, the operating voltage 3V of ISD4004 type sound broadcast chips, work is followed using SPI serial line interfaces Synchronous serial-data transmission agreement.System device delay TPUD under the sampling depth of 8KHZ is about 25ms, so after the power is turned on must First operational order can be just sent out after the time that TPUD must be waited for.ISD4004 type sound broadcast chips have recording playback sound quality good, It is minimum to occupy volume, so the characteristics of being very suitable for portable device, being easily installed use.

The schematic diagram of sound broadcast chip is as shown in Figure 3, whereinMicrocontroller CS chip select functionalities are connected, whenLow level When to ISD4004 chips send instruct, needed between instruction bySet high level.

MISO, MOSI are serial output and input terminal, SCLK serial clocks, and signal is generated by microcontroller, it is therefore an objective to Make the data transmission synchronization of MOSI and MISO, SCLK data in rising edge will be transferred to ISD4004, when SCLK failing edges Move data out ISD.These ports are all connected to microcontroller control herein.

ANDOUT is audio output, and maximum can drive the load of 5KR.Chip has automatic decrease of noise functions, at the ends AMCAP Mouth connects the capacitance of 1uF over the ground, and capacitance is integrally formed with internal signal peak detection, and when big signal comes, circuit is unattenuated, Deamplification when mute does not use decrease of noise functions when AMCAP connects high level.

ANA IN+ be recorded audio signals with phase analog input end, when single ended input, signal by coupled capacitor input, when The ports ANA IN- are combined when differential signal drives, signal maximum amplitude is peak-to-peak value when input, and signal is defeated by coupled capacitor Enter.I uses 0.1uF capacitances to transmit signal as coupled capacitor in circuit.

RAC is row address clock, and ISD4004 built-in storagies have 2,400 rows altogether, and a RAC period indicates depositing for ISD Reservoir has carried out the operation of a line.ISD when doing arbitrary operation, if including detection OVF marks be the recording playback of ISD End and detection EOM marks i.e. playback through reaching memory detect internal EOM marks in the process, thenWith regard to becoming For low level, low level state can be in the preamble bit that the next SPI periods start.The signal of ISD4004 audio outputs ANDOUT Loud speaker use cannot be directly connected to, it is necessary first to amplify audio signal, I designs with LM386 audio collections by selection At the power amplifier that power amplifier is core.

The extremely low only 4mW of the power consumption of LM386 itself, voltage range requires low 4V-12V when work, is suitble in adverse circumstances Lower work, LM386 integrated chips are that component peripheral needed for the power amplifier of core is less, but remains again simultaneously lower The distortion factor.

VOUT is followed by output coupling capacitor, and effect one is partition direct current, is possible to damage when DC voltage is larger and raise one's voice The coil of device, second is that the AC signal of coupling audio.When coupled capacitor forms single order high-pass filter with loud speaker, capacitance reduces When noise impact amplitude reduce, width narrows.Because of frequency f_c=1/ (2 π × RL × C) can be improved when C reduces frequency, be passed through It is the most suitable when capacitance 220uF that debugging obtains.

Further, the voice station reporting instrument further includes clock circuit module 7, the clock circuit module 7 and MCU Module 1 connects, the clock signal for providing the work of the MCU module 1.

Preferably, the clock circuit module 7 uses DS1302 type low-power consumption real-time timepiece chips.Using DS1302 clocks Chip can functionally count year, month, day, hour, min, second, adjust automatically whether the leap year, adjusted without artificial interference, It can count in year up to 2100, much meet current requirement.Chip interior has 31*8 extra data temporary registers, just The requirement of normal operating voltage is wide in range in 2.0-5.5V, can be compatible with the IC such as 3.3V and 5V microcontrollers common in the market control cores Piece.The periphery of DS1302 chips is extremely simple, chip has DIP encapsulation and the SOIC encapsulation of 8 pins, with unification only 32.768 Crystal oscillator can normal use, by coordinating microcontroller by parameter using being shown.Using the advantages of DS1302 schemes be from Wire type, need not rely on extraneous network, it is only necessary to which external crystal oscillator can be realized to obtain the time of degree of precision, safely may be used It leans on.In the present embodiment, DS1302 clock circuits need system 5V power supplies and the button cell of 3.3V, additionally need by crystal oscillator Signal of the signal of 32.768K to DS1302 as internal clocking is provided, is entered data into each SCLK rising edges, is declined Along when data are exported, but can only once write one, a bytes, peripheral circuit such as Fig. 4 institutes of DS1302 are read and write in 8 pulses Show.

With reference to figure 5, the voice station reporting instrument further includes crystal oscillating circuit module 8, the crystal oscillating circuit module 8 and MCU Module 1 connects, the clock frequency for providing the work of the MCU module 1.In the present embodiment, the selection of crystal oscillator is by microcontroller Clock request determines, the crystal oscillator of 11.0592MHZ, two capacitances is selected to be connected in parallel on crystal oscillator both ends herein, uses the tile electricity of 33pF Hold.

With reference to figure 5, the voice station reporting instrument further includes reset circuit module 9, the reset circuit module 9 and MCU Module 1 connects, for so that 1 reliable reset of the MCU module.In the present embodiment, reset circuit uses 10uF capacitances and 10K Resistance causes monolithic processor resetting it is achieved that microcontroller RST pins are Gao Shihui, so usually RST pins connect by resistance It is connected to ground, RST is high level when by key pressing, and RST maintains the high level of a period of time during capacitor charging, to make list Piece machine reliable reset.

Preferably, the MCU module 1 uses STC89C54 type microcontrollers.Use STC89C54 microcontrollers, 51 kernel 16K The Flash chip of byte, the RAM of 1280 bytes, meets system requirements.

Preferably, the display module 4 uses LCD12864 type dot matrix LCD modules.The periphery of LCD12864 Circuit is relatively simple, and system 5V power supply, brightness regulation is directly data transmission mouth with electric resistance partial pressure D0-D7, directly and microcontroller Connecting communication, schematic diagram is as shown in Figure 6.The characteristic of LCD12864 Liquid Crystal Modules is mainly controlled by it device ST7920 and determines. ST7920 is used as controller and driver simultaneously, it can provide 33 road com outputs and 64 road seg outputs.In driver ST7921 Cooperation under, can at most drive 256 × 32 lattice lcds.In the controller chip ST7920 that LCD12864 Liquid Crystal Modules use Band voltage doubling unit, plug-in 2 polar capacitors generate the voltage of 2 times of VCC, are drawn by Vout feet, adjusted by potentiometer Afterwards, module is introduced from the V0 feet of interface to be used for driving LCD.That directly drive LCD is V0, and V0 voltages are higher, and contrast is deeper.

In the present embodiment, the button one in key circuit is record button, and by website typing, button two is stop key, typing The stoppings of Shi Yizhan mono-, button three and button four divide to be switched for uplink and downlink, and button five is function key, is pressed in short-term as broadcasting.Microcontroller Power supply set high level is connected by resistance when I/O is flat, when by key pressing, I/O mouthfuls of ground connection are set low level, realization is pressed The principle of key function, key circuit module is as shown in Figure 7.

The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should It is subject to the protection scope in claims.

Claims (10)

1. a kind of public bus voice station reporting instrument based on GPS, which is characterized in that including MCU module, GPS module, Speech Record playback Module, display module, key circuit module and power module, wherein：

The GPS module is connect with the MCU module, and the real-time longitude, latitude, time for obtaining bus by antenna are believed It ceases and is sent to the MCU module；

The Speech Record playback module is connect with the MCU module, latitude and longitude information and voice for each website that prestores in advance Information of calling out the stops and for when bus pulls in by the MCU module by real-time website latitude and longitude information and the website that prestores Latitude and longitude information is compared and reports corresponding site information；

The display module is connect with the MCU module, current time and site information for showing bus stop station；

The key circuit module is connect with the MCU module, for carrying out hand-guided to voice station reporting instrument；

The power module is connect with the MCU module, the working power for providing the MCU module.

2. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that the Speech Record Playback module includes microphone and loud speaker, wherein：

The microphone connects the input terminal of the Speech Record playback module, for each website that prestores in advance latitude and longitude information and Sound broadcast information；

The loud speaker connects the output end of the Speech Record playback module, for reporting the Speech Record when bus pulls in The sound broadcast information to prestore in playback module.

3. a kind of public bus voice station reporting instrument based on GPS according to claim 1 or 2, which is characterized in that the voice Record/playback module uses ISD4004 type sound broadcast chips.

4. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that further include clock Circuit module, the clock circuit module are connect with the MCU module, the clock signal for providing the MCU module work.

5. a kind of public bus voice station reporting instrument based on GPS according to claim 4, which is characterized in that the clock electricity Road module uses DS1302 type low-power consumption real-time timepiece chips.

6. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that further include crystal oscillator Circuit module, the crystal oscillating circuit module are connect with the MCU module, the clock frequency for providing the MCU module work.

7. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that further include resetting Circuit module, the reset circuit module are connect with the MCU module, for so that the MCU module reliable reset.

8. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that the MCU module Using STC89C54 type microcontrollers.

9. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that the display mould Block uses LCD12864 type dot matrix LCD modules.

10. a kind of public bus voice station reporting instrument based on GPS according to claim 1, which is characterized in that the power supply mould Block is attached using USB interface with the MCU module.