CN201181488Y - Passenger traffic collection apparatus for public traffic vehicle - Google Patents
Passenger traffic collection apparatus for public traffic vehicle Download PDFInfo
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- CN201181488Y CN201181488Y CNU2008200741780U CN200820074178U CN201181488Y CN 201181488 Y CN201181488 Y CN 201181488Y CN U2008200741780 U CNU2008200741780 U CN U2008200741780U CN 200820074178 U CN200820074178 U CN 200820074178U CN 201181488 Y CN201181488 Y CN 201181488Y
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Abstract
The utility model relates to a passenger-flow acquisition device for public traffic vehicles. The device comprises a passenger-flow statistic module, an information acquisition module, a transmission module and a stop reporting module. The passenger-flow statistic module is used for counting and saving the passenger-flow number getting on and off a vehicle; the information acquisition module is used for acquiring GPS information for positioning the vehicle; the transmission module is used for conveying information, such as a passenger number, time, stops, etc., to a service terminal; the stop reporting module is used for automatically reporting a stop in a voice. The passenger-flow statistical method adopted in the device cannot be limited by single direction and single person at one time, and can count the passenger flow under the condition that two passengers pass through one door in two directions at the same time.
Description
Technical field
The utility model relates to Automatic Measurement Technique, and particularly a kind of public traffic vehicle passenger flow harvester is applicable to the get on or off the bus collection of number of each station of public transit vehicle.
Background technology
Urban construction is now maked rapid progress, the general layout in city is in continuous variation, the foundation of old sub-district removal, new sub-district, urban track traffic development etc. all affect the operating line of public transport, and the operating line of public transport need often be adjusted with the development and change that adapt to the city and improve efficiency of operation.
To the adjustment of public bus network, realize that the optimization of scheduling all need be based on passenger flow statistics, passenger flow statistics is manually carried out in now common employing, real-time is poor, statistic is also smaller, has influenced statistical accuracy, can not adjust public bus network timely and effectively.Press for the technology of introducing the advanced person and solve problems such as passengers quantity statistics.
Chinese patent CN 200520043023 discloses a kind of structure of vehicle passenger flow amount statistics pedal sensor, and the structure of this pedal sensor has comprised L type base plate, dot matrix pressure transducer, slipmat, case.This patented claim is installed on the dot matrix pressure transducer on the L type base plate, remakes on the as a whole import and export ladder that places vehicle, has solved the dot matrix pressure transducer at the relatively poor installation question of environment for use.But when pressure sensor used on not having the public transit vehicle of step, it was unreliable to count.In addition, system unit is fragile, maintainability is poor, owing to the installation site that equipment is suitable is most important for accurate counting, so the Installation and Debugging expense is also higher.
Chinese patent CN 200510060288 discloses a kind of public traffice passenger flow statistical method based on stereoscopic vision, and stereo vision apparatus and algorithm are adopted in this invention.The 3 D visual image collecting device is positioned over the bus door top, gather the passenger getting on/off image in real time, processor adopting stereoscopic vision algorithm is handled the binocular image that collects, obtain picture depth information, obtain the information such as position, size, gray scale of passenger's head in conjunction with the process information of monocular image, by the passenger head information real-time follow-up of tracking section, know the passenger getting on/off number again by tracking results to obtaining.This patented claim, on hardware, need to adopt equipment such as video camera, cost is higher, on software, only image has been extracted human body head information, position, radius, half-tone information are transferred to track algorithm and are implemented, thereby judge the direction of motion of passenger flow, and this kind determination methods is very high to the degree of dependence of video camera, track algorithm accuracy, be difficult to carry out technically, be difficult to the resolution that reaches higher.
Chinese patent CN 200410155552 discloses a kind of method of bus passenger flow volume real-time statistics, above bus is got on or off the bus car door, human-body infrared sensing device and infrared reflection switch arrays are housed vertically downward, and each of array o'clock is made up of a human body infrared sensor and an infrared reflection switch binding; Human-body infrared sensing device and infrared reflection inductive switching to human body signal respectively through MUX with signal processing circuit is amplified, filtering, relatively convert electric impulse signal to, I/O mouth by CPU reads in again, data storage is in data-carrier store, CPU judges the direction that gets on and off and adds up the number that gets on and off that according to the number of reading the array induction pulse and pattern finally the serial ports by CPU sends to car-mounted terminal or control center to every station number of getting on and off according to certain algorithm.The principal feature of this patented claim is to adopt the array induction step-by-step counting to judge the passenger flow number and the direction of getting on or off the bus, pick-up pattern and how pattern is handled the practical scheme that proposes not to how, therefore, still exist degree of accuracy lower, the shortcoming that False Rate is higher.
Chinese patent CN200420082513 discloses a kind of public traffic vehicle passenger flow number system, this system comprises a passenger flow statistics module and an information acquisition module, the passenger flow statistics module, be used for the passenger flow number of getting on the bus and getting off is added up, information acquisition module writes down the passenger flow number, store, show.Described passenger flow statistics module further comprises a burst of biographies sensor of spot pressure, the lattice scanning circuit, statistics part microprocessor, the switch gate signal circuit, the CAN communication interface, it is electric signal with this conversion of signals also that a burst of biographies sensor of spot pressure receives passenger's pressure signal, the lattice scanning circuit is to the different pin shapes of the output of a burst of biographies sensor of spot pressure, the electric signal of direction scans and it is outputed to statistics part microprocessor, statistics part microprocessor is handled lattice scanning circuit output digital signal, calculates/gets off number and pass through CAN, communication interface sends.This patented claim needs to adopt special pressure sensing array on hardware, and cost is higher, and durability degree is limited.On the software by the lattice scanning circuit is analyzed statistical number of person to the different pin shapes of the output of a burst of biographies sensor of spot pressure, the electric signal of direction.The distance of just giving chapter and verse in this patent between two pin is different, and change of shape trend difference did not provide the concrete analysis algorithm when front and back pin left.So this method is difficult to guarantee high resolving power and high precision under many people complicated situation.
Summary of the invention
The purpose of this utility model is to provide a kind of public traffic vehicle passenger flow harvester, can overcome the deficiencies in the prior art, price is low, precision is high, the passenger flow collecting device of the disconnected infrared electro pressure transducer that rate is low, real-time is good of erroneous judgement for the bus passenger flow collection provides.
The utility model public traffic vehicle passenger flow harvester mainly comprises: passenger flow statistics module, information acquisition module, communication module, the module of calling out the stops.
The passenger flow statistics module is used for the passenger flow number of getting on or off the bus is added up and statistics is carried out record.
Information acquisition module is used for GPS information and GPRS information are gathered, and determines whether automatically to arrive at a station by more current latitude and longitude information and each station latitude and longitude information according to GPS information.
Communication module is used for passenger flow information, site information, temporal information etc. are transferred to service terminal.
The module of calling out the stops is used to carry out sound broadcast.
Described passenger flow statistics module comprises: MCU, 2 electrooptical devices, pressure pedal, switch gate signal circuit.2 electrooptical devices are installed in car door interior courtesy side the place ahead.The pressure pedal is placed on the 2nd of vehicle marks time, MCU is in the main control box, electrooptical device links to each other with I/O port P1.4, P1.5, the P2.1 of MCU by anti-tampering signal wire with gate signal, and the pressure pedal links to each other with two comparator C P0, CP1 positive input terminal and the A/D port of MCU.
Described information acquisition module comprises MCU, GPS receiver.MCU and GPS receiver module all are placed in the main control box, and the GPS receiving antenna is put in outside the vehicle.The shared vehicle-mounted power supply of GPS and MCU.Both are by the RS232 communication.
Described communication module comprises MCU, GPRS module, bluetooth module.MCU, GPRS module and bluetooth module all are placed in the main control box, shared vehicle-mounted power supply.GPRS and bluetooth module are by RS232 and MCU communication.
The described module of calling out the stops comprise the MP3 player, with the connecting circuit of main control MCU.The MP3 player is placed in the main control box, and it links to each other with 3 I/O ports of main control MCU by signal wire.
The utility model public traffic vehicle passenger flow harvester is realized the step that the method for bus passenger flow collection comprises:
1) pressure transducer that can gather pressure is put in 2 grades of places of marking time of car door.
2) two reflective photoelectric sensors are put in place, car door inner step side the place ahead.
3) main control computer is connected with pressure transducer, photoelectric sensor, obtains both signals of being produced of pressure transducer, photoelectric sensor.
4) obtain gate signal, judge whether to enter door opening state, enter step 5) when opening the door, otherwise enter step 6).
When 5) opening the door according to obtain by look-at-me and pressure signal that pressure transducer and photoelectric sensor produced, by number analytical algorithm (seeing the counting module in the embodiment) statistics patronage, direction.Return step 4).
6) at closing time service terminal is stored and sent to information such as patronage, time, station number.And obtain GPS information and seek the station automatically.Return step 4).
Above-mentioned steps 5) key step of number analytical algorithm described in:
(1) door is opened, and opens comparator C P0 rising edge and negative edge and interrupts, and opens P1.4 and P1.5 external interrupt.
(2) the wait door is closed.
A) when first passenger sets foot on pedal,, MCU comparator C P0 pressure reduction interrupts because producing first rising edge.Enter step (3).
B) when first passenger goes down pedal,, MCU comparator C P0 pressure reduction interrupts because producing second negative edge.Enter step (4).
C) when at this moment the last passenger that stood on the pedal is set foot on by the passenger again,, MCU comparator C P1 pressure reduction interrupts because producing second rising edge.Enter step (5).
D) when, interrupting when wherein a people goes down pedal by two passengers on the pedal because MCU comparator C P1 pressure reduction produces first negative edge.Enter step (6).
(3) MCU record photo-sensor signal will if the photoelectricity variable signal is arranged, then writes down this passenger and is the direction of getting on the bus.Opening timing device T0.Read force value, add that the value of 10kg outputs to the D/A end, the D/A end links to each other with CP1 input negative terminal.Open the CP1 rising edge and interrupt returning step (2).
(4) MCU judges whether T0 institute reaches 100ms writing time, if reach record person-time, does not write down person-time if reach, and thinks to be unusual interference.Timeing closing device T0.Close all interruptions of CP1.Return step (2).
(5) MCU judges whether T0 institute reaches 50ms writing time, if do not reach, closes the CP1 rising edge and interrupts, and returns step (2).If reach, MCU writes down photo-sensor signal will, if the photoelectricity variable signal is arranged, then writes down this passenger and is the direction of getting on the bus.Read force value, the value that reduces 15kg outputs to the D/A end.Opening the CP1 negative edge interrupts.Again opening timing device T0.Return step (2).
(6) MCU judges whether T0 institute reaches 50ms writing time, if reach record person-time, does not write down person-time if reach, and thinks to be unusual interference.Close all interruptions of CP1.Return step (2).
The utility model is in conjunction with GPS/GPRS, pressure sensing technology, infrared technique, Bluetooth technology.In the bus driving process, receive the signal of GPS transmission, compare, in reaching certain threshold range, start sound broadcast with the positional information of each website.Starting pressure sensor and infrared electro device after open the door are according to infrared electro reflection and pressure parameter accurately analytic record passenger's quantity and direct of travel.Close and behind the door site location, time and passenger flow information to be write external memory, and the website passenger flow data that detects is sent to the dispatching center by GPRS, wait until that perhaps vehicle gets back to the parking lot, by the disposable importing of Bluetooth technology.
The utility model product has following several function:
1. passenger flow counting
The utility model utilizes pressure sensing technology, infrared technique that passenger flow data is gathered.By accurate analytic record passenger's the quantity of pressure transducer.And, utilize two infrared electro devices and pressure transducer in conjunction with the direct of travel of judging the passenger.
2. real-time communication
Under the GPRS transmission mode, can carry out real-time communication.Comprise the real-time positioning monitoring of vehicle, the real-time passback of image data comprises the positional information, velocity information, temporal information, passenger flow information of vehicle etc.
3. the wireless transmission of data
The data transmission of this product can adopt dual mode: bluetooth and GPRS.This dual mode all is a Wireless transmission mode.Two kinds of characteristics differences, Bluetooth transmission are apart from weak point, and in hundred meters, but cost is low, do not need additional expense; GPRS is not subjected to distance limit, can carry out real-time communication, but the transmission data need additional expense.Select which kind of mode to select according to customer demand.
4. automatic broadcasting
This product carries out in real time accurately location in conjunction with the GPS technology, carries out automatic broadcasting when vehicle pull-in sets off, and breaks away from manual intervention fully.Station reporting instrument has adopted the technology comparative maturity, and the MP3 of less expensive.Its characteristics are exactly with low cost, and memory capacity is big and tonequality good.
The utility model advantage compared with prior art and the good effect of generation:
Single in the past infrared type or pressure pedal passenger flow counting method error are big, are unsuitable for the public transport environment.The utility model combines infrared technique, pressure sensing technology, has researched and developed a kind of new passenger flow counting method.Though this method is also based on the pressure pedal, and the pressure pedal had very big difference in the past.Pressure pedal in the past generally all adopts the method for counting of simple switching value, and this method not only can not be distinguished passenger's direct of travel, and also error can take place when a plurality of passengers stand on the sensing gauge simultaneously, causes the situation of losing person-time.The utility model utilizes pressure transducer, two infrared electro devices, can analyze passenger's direct of travel to a certain extent.And maximum characteristics of the present utility model are that two people are simultaneously by also can accurately identifying under the pedal situation person-time.
The utility model utilizes the GPS technology, obtains locating information, through revising, can accurately navigate to each station of public transport, in time calls out the stops, and gathers every station passenger that gets on or off the bus, and stores or real-time Transmission.
Description of drawings
Fig. 1 the utility model products-hardware connecting frame figure.
Fig. 2 the utility model product scheme of installation.
Fig. 3 the utility model photoelectric sensing is installed vertical view.
Fig. 4 the utility model passenger flow collecting device wiring diagram.
The process flow diagram of Fig. 5 the utility model primary control program.
Fig. 6 the utility model C8051F00X internal comparator structural representation.
Fig. 7 the utility model comparer connection diagram.
Fig. 8 the utility model passenger loading synoptic diagram.
Fig. 9 the utility model comparer interrupts along synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated:
The utility model comprises: the passenger flow statistics module is used for the passenger flow number of getting on or off the bus is added up and statistics is carried out record.
Information acquisition module is used for GPS information and GPRS information are gathered, and determines whether automatically to arrive at a station by more current latitude and longitude information and each station latitude and longitude information according to GPS information.Communication module is used for passenger flow information, site information, temporal information etc. are transferred to service terminal.The module of calling out the stops is used to carry out sound broadcast.
The passenger flow statistics module comprises: MCU, 2 electrooptical devices, pressure pedal, switch gate signal circuit.2 electrooptical devices are installed in car door interior courtesy side the place ahead, apart from the about 1m of floor level place.The pressure pedal is placed on the 2nd of vehicle marks time, MCU is in the main control box, electrooptical device links to each other with I/O port P1.4, P1.5, the P2.1 of MCU by anti-tampering signal wire with gate signal, and the pressure pedal links to each other with two comparator C P0, CP1 positive input terminal and the A/D port of MCU.
When the passenger was blocked 2 electrooptical devices, the electric signal of its output produced and changes, and MCU detects postscript and employs in the direct of travel of judging the passenger.The pressure pedal receives the human body pressure signal, and the electric signal that this signal is converted into analog quantity is transferred to MCU, MCU by comparer look-at-me that pressure produced and pressure signal analysis passenger person-time and the direction of getting on or off the bus, carry out record.The switch gate signal circuit is transferred to MCU with switch gate signal, and opening entry passenger flow person-time when enabling signal stops statistics at closing time.
Information acquisition module specifically comprises MCU, GPS receiver.MCU and GPS receiver module all are placed in the main control box, and the GPS receiving antenna is put in outside the vehicle.The shared vehicle-mounted power supply of GPS and MCU.Both are by the RS232 communication.The GPS receiver is responsible for receiving gps signal and is transferred to MCU by RS232, and MCU determines the current location and the time of vehicle ' according to GPS information, and judges whether to arrive website, notifies the module of calling out the stops when arriving website.
Communication module specifically comprises MCU, GPRS module, bluetooth module.MCU, GPRS module and bluetooth module all are placed in the main control box, shared vehicle-mounted power supply.GPRS and bluetooth module are by RS232 and MCU communication.GPRS module and bluetooth module are used to receive the information command of service terminal, and are transferred to MCU by RS232.
The module of calling out the stops specifically comprise the MP3 player, with the connecting circuit of main control MCU.The MP3 player is placed in the main control box, and it links to each other with 3 I/O ports of main control MCU by 3 signal wires.When information acquisition module is determined to arrive a website, station number information is transferred to the MP3 player by connecting circuit, the MP3 player is searched pairing audio file according to institute to station number and is play.
Practical application of the present utility model is a vehicle-mounted product, adopts single-chip microcomputer as primary controller 10; The passenger flow counting function uses the pressure transducer 20 that transmits analog quantity to realize, external two infrared electro devices 30 are in order to auxiliary differentiation passenger direct of travel; The vehicle location function realizes by GPS receiver 40; Communication function then adopts GPRS module 50 and bluetooth module 60 to realize; Adopt MP3 player 70 to realize the automatic broadcasting function; Wherein to preserve the data of some, therefore need by the external exterior storage chip 80 of I./O; Door switch signal circuit 90 generator gate switch state signals.Its whole hardware frame figure as shown in Figure 1.
The main frame of passenger flow collecting device can be put into room below the panel board in public transit vehicle the place ahead, and it is convenient to place.In addition, two infrared electro box r1 need be installed in the interior left side of the Xiamen b1 fence support w1 of place on the vehicle.The pressure sensing pedal is placed in the 2nd grade of t2 place of marking time.Because the public transit vehicle vehicle is more, the site environment complexity is various, installs difficulty.Yet by the general character of all public transit vehicles of research, the utility model is fit to be installed to multiple vehicle, and is very convenient.Accompanying drawing 2 is the scheme of installation of Xiamen certain vehicle of gold dragon.Wherein one-level is marked time and is that t1, car door axle are b2, and the electrooptical device support is r2.Accompanying drawing 3 is installed vertical view for photoelectric sensing.In addition all wiring all from the hull base below by, it is attractive in appearance can not to influence vehicle, also can not impact passenger safety.Accompanying drawing 4 is the line graph of main frame and electrooptical device, and wherein SM-5Y, SM-4Y, SM-3Y, SM-2Y are respectively 5 line terminals, 4 line terminals, 3 line terminals, 2 line terminals.H0 is and the passenger flow collecting device link that g0 is and the peripheral hardware link.Dr1, dr2 are and electrooptical device 30 splicing ears.Y1 is and pressure transducer 20 splicing ears.S1 is and door switch signal 90 splicing ears.
The utility model mainly comprises 6 software function modules: the GPS acquisition module, look into the station module, communication module, memory module, speech control module and counting module.
Start back primary control program brings into operation, and at first carries out initialization, comprises the detection setting of hardware and the allocation manager of internal storage location.Enter the dispatch state of other 5 modules after the initialization, at first judge whether set of count flag countflag, begin counting if counting module is called in set, counting finishes and calls memory module, and information stores finishes and returns administration module.Otherwise, to dispatch the GPS acquisition module successively, look into station module and communication module, 3 modules are taked the principle of time-sharing multiplex.When looking into the station module and determine to arrive a station with call out the stops module communication, the module of calling out the stops is called out the stops.Primary control program carries out the switching of each scene according to Status Flag, guarantee that each module can in time move by demand, also guarantee between the module can be promptly and accurately communication, and the security that is assigned as total system by correct management and reasonable resources to each module provides safeguard.The flow process of primary control program as shown in Figure 5.
The GPS acquisition module mainly is responsible for receiving data from the GPS receiver end, the correctness of judgment data and the meaning of each data, and useful data are stored.GPS receiver transmission primaries packet in each, data layout adopts KODEN BINARY in second.Packet is made up of packet header, data and bag tail 3 parts, each byte of its middle wrapping head bag tail, indentured 24 bytes, totally 26 bytes.The GPS acquisition module is at first judged the transmission data, stores in the corresponding internal buffer 24 later byte content into once inquire before overriding data when receiving correct packet header sign.
Look into the station module and be responsible for inquiring about the work of website.In advance each the site location information in the bus driving circuit is noted with the form of table.Location information table has two, and one is up table table1, and one is descending table (table2), the position of writing down each website of uplink and downlink respectively.After GPS acquisition module operation finishes, look into the station module and start, whether the information of at first judging GPS and being gathered is reliable, mainly judges according to its star number, when star number can think that information is accurate during greater than 3.Judge whether to seeking for the first time the station according to existing station number bn afterwards.If the first time, call and seek the station module for the first time.Because some cause specifics are out of order such as bus, power down etc. emergency situations, initial website not necessarily is the starting station, therefore for the first time seeking the station module will compare all positions in positional information that GPS gathered and two location information tables, when with the difference DELTA s of the longitude and latitude at a certain station less than 70 the time, determine that it arrives a station, note station number, and be provided with and look into for the second time station indicator sflag.When not being when looking into for the first time the station, judges and look into station indicator for the second time,, call and look into the station module for the second time if secondary is masked as 1 (sflag==1).In particular cases may seek the wrong possibility in station owing to look into for the first time to stand in, when gps signal is not too accurate, can cause the misorientation fixed point, navigate to descending website or opposite when up such as up website and descending website close together.Also need special processing so look into the station for the second time.Concrete way is to judge the station mode of looking into according to the station number of finding for the first time.All site information when station number is in up in the search upstream and downstream.When station number is in descending in the searching downlink last website and up in all websites.So just can guarantee to look into for the second time the correctness at station, correct primary mistake.After finding two stations, the search direction of location information table has just determined that also looking into afterwards just there is no need in the process of station to have carried out global search.Originally can only compare just passable the positional information that GPS gathered with the next stop of determining website, but consider the problem that the GPS receiver is disturbed, such as disturb correctly received signal of strong GPS receiver in a certain zone, if a station is just in time arranged in this zone, ought look into so and will can not find other stations forever after the station program can not find this station, because the data that GPS receives just compare with the positional information at that station of not finding.Therefore, after website is determined for the second time, the comparison at 5 stations after at every turn carrying out.So both avoided in particular cases making a mistake, and saved again and sought the station time.
Communication module mainly is responsible for the real-time communication of onboard system and service terminal, comprises the transmission of image data and the reception of order.When service terminal transmits data, communication module is judged the data that send which kind of type earlier, according to type data is encapsulated packing and transmits.When communication module receives the data that service terminal sends over, according to the agreement that provides in advance data are resolved earlier, decision takes what action then.Communication module withdraws from after timeslice is used up.
Memory module is responsible for useful information stored on the external memory storage and is extracted when needing later on.That the utility model external memory storage uses is the AT26C64 E2PROM of 8K, and wherein 16 bytes are permanent storage area, have stored some fix informations in this system, such as license number, and current memory location etc.So this module mainly is made up of two parts, a part is the read-write operation to E2PROM, a part be the maintenance of storer comprise cross the border, the protection of current memory location etc.
Voice station reporting instrument is as independently system's existence, and speech control module is exactly its management system in fact.For each station is associated with correct audio file, the utility model with audio file with station number as filename.Speech control module is searched for All Files according to the station number that transmission comes as filename like this, obtains correct audio file.After the startup, this module is in wait and accepts data mode, and when data transmission was come, search file carried out speech play when existing.When not existing, turn back to accepting state.The outer button function realizes with interrupt mode.After triggering an interruption, enter interrupt service routine, carry out respective handling, change sign then, return master routine.
Counting module is important module in the software, and its major function is statistics passenger trip and direct of travel.The utility model adopts 2 infrared electro devices and 1 pressure transducer to catch the signal that passenger getting on/off produces.By analyzing these signals identification passenger trip and direct of travel.Main control MCU adopts the C8051F00X series monolithic in the system.There are two 12 DAC and two comparers in this series monolithic inside.Data and control interface between MCU and each comparer and the DAC are realized by special function register.MCU can place low-power consumption to turn-off mode any one DAC or comparer.C8051F00X internal comparator structure as shown in Figure 6.
Can be by the hysteresis voltage of software setting comparer.Each comparer can both produce interruption at rising edge or negative edge, or all produces interruption at two edges.The output state of comparer can be inquired about with software.These interruptions can wake MCU up from waiting mode.And, can the I/O port pinout be received in the output of comparer by cross bar switch is set.
DAC is the voltage way of output, uses same voltage reference with ADC.It is very useful when DAC provides offset voltage at the reference voltage of device as a comparison or for the input of ADC difference.
The utility model is imported the analog quantity output of pressure transducer through the anode that amplifies two comparers that are connected to MCU.The negative terminal input connection+0.4v power supply of comparator C P0.The negative terminal input of comparator C P1 connects the output terminal of DAC0.Comparer connects as shown in Figure 7.In addition, 2 infrared electro devices being connected a pin with the external interrupt 4,5 of MCU links to each other.Voltage changes when infrared electrooptical device is blocked, and MCU produces interruption.
When the passenger passes the infrared electro device, produce and interrupt MCU record mark information.Comparer produces the rising edge interruption during passenger's pushes pedals, judges passenger's direction of travel this moment by former flag information.Therefore, by 3 direction of travel that can judge the passenger exactly.
As shown in Figure 7, stressed when pressure transducer, analog quantity outputs to the positive input terminal of comparer 0, and when reaching threshold value, comparer produces rising edge and interrupts.Produce in the rising edge and have no progeny, when pressure reduced to certain threshold value, comparer produced negative edge and interrupts.Such rising edge interrupts and corresponding negative edge interruption just can be described the complete procedure of a passenger getting on/off.Also promptly can be correct note the passenger trip.The passenger loading process as shown in Figure 8.
The characteristics of the utility model maximum are exactly under a people stands in situation on the pedal, have the people also can carry out accurate recognition through out-of-date again.When two people set foot on pedal, can produce two rising edges, two negative edges, as shown in Figure 9.The analog quantity output of pressure transducer also links to each other with the A/D input end with the CP1 positive input terminal of MCU.Have no progeny in CP0 produces rising edge, MCU reads in force value by the A/D end, determines the pressure of current human body by algorithm, and logical then D/A is provided with the negative input end of CP1, and the rising edge of opening CP1 interrupts.When the someone set foot on pedal again, the output of pressure simulation amount reached certain threshold value like this, and the rising edge that produces CP1 interrupts.At this moment, by reading the A/D value, deduct the value of certain value once more as the new negative input end of CP1 with current force value.The negative edge of opening CP1 interrupts.When the people went down pedal, the negative edge that will produce CP1 interrupted.Repeating above way afterwards can be two people not exclusively synchronously under the situation of process, to person-time carrying out accurate recognition.This method solved former like product when a people stands on the pedal, have again the people by the time problem that just can't count.
Claims (5)
1, a kind of public traffic passenger flow harvester is characterized in that it mainly comprises:
The passenger flow statistics module is used for the passenger flow number of getting on or off the bus is added up and statistics is carried out record;
Information acquisition module is used for GPS information and GPRS information are gathered, and determines whether automatically to arrive at a station by more current latitude and longitude information and each station latitude and longitude information according to GPS information;
Communication module is used for passenger flow information, site information, temporal information etc. are transferred to service terminal;
The module of calling out the stops is used to carry out sound broadcast.
2, public traffic passenger flow harvester according to claim 1, it is characterized in that described passenger flow statistics module comprises: MCU, electrooptical device, pressure pedal, switch gate signal circuit, electrooptical device is installed in car door interior courtesy side the place ahead, the pressure pedal is placed on the 2nd of vehicle marks time, MCU is in the main control box, electrooptical device links to each other with I/O port P1.4, P1.5, the P2.1 of MCU by anti-tampering signal wire with gate signal, and the pressure pedal links to each other with two comparator C P0, CP1 positive input terminal and the A/D port of MCU.
3, public traffic passenger flow harvester according to claim 1 is characterized in that described information acquisition module comprises MCU, GPS receiver, and MCU and GPS receiver module all are placed in the main control box, and the GPS receiving antenna is put in outside the vehicle; The shared vehicle-mounted power supply of GPS and MCU, both are by the RS232 communication.
4, public traffic passenger flow harvester according to claim 1, it is characterized in that described communication module comprises MCU, GPRS module, bluetooth module, MCU, GPRS module and bluetooth module all are placed in the main control box, shared vehicle-mounted power supply, GPRS and bluetooth module are by RS232 and MCU communication.
5, public traffic passenger flow harvester according to claim 1, it is characterized in that the described module of calling out the stops comprise the MP3 player, with the connecting circuit of main control MCU, the MP3 player is placed in the main control box, and it links to each other with 3 I/O ports of main control MCU by signal wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200741780U CN201181488Y (en) | 2008-03-26 | 2008-03-26 | Passenger traffic collection apparatus for public traffic vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008200741780U CN201181488Y (en) | 2008-03-26 | 2008-03-26 | Passenger traffic collection apparatus for public traffic vehicle |
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| CN201181488Y true CN201181488Y (en) | 2009-01-14 |
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| CNU2008200741780U Expired - Fee Related CN201181488Y (en) | 2008-03-26 | 2008-03-26 | Passenger traffic collection apparatus for public traffic vehicle |
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| Country | Link |
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| CN (1) | CN201181488Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184587A (en) * | 2011-06-01 | 2011-09-14 | 洞头县亿纬自动化设备厂 | Light curtain type passenger flow counter |
| CN103955977A (en) * | 2014-04-30 | 2014-07-30 | 复旦大学 | Method for counting number of people in bus based on 4G base station |
| CN104424813A (en) * | 2013-09-11 | 2015-03-18 | 上海博英信息科技有限公司 | Intelligent electronic bus stop |
| CN105809896A (en) * | 2016-05-06 | 2016-07-27 | 中国人民解放军军事交通学院 | Bus comprehensive information system with flammable and explosive gas and passenger flow monitoring and analyzing function |
| CN105869399A (en) * | 2016-05-11 | 2016-08-17 | 南京信息职业技术学院 | Real-time bus crowding degree query system |
| CN109816183A (en) * | 2019-03-28 | 2019-05-28 | 南京行者易智能交通科技有限公司 | A kind of optimization method and device of accurate bus passenger flow big data |
| CN112381977A (en) * | 2020-11-24 | 2021-02-19 | 中铁第一勘察设计院集团有限公司 | Counting system for number of people who pass in and out in train inspection and top-climbing operation |
-
2008
- 2008-03-26 CN CNU2008200741780U patent/CN201181488Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184587A (en) * | 2011-06-01 | 2011-09-14 | 洞头县亿纬自动化设备厂 | Light curtain type passenger flow counter |
| CN104424813A (en) * | 2013-09-11 | 2015-03-18 | 上海博英信息科技有限公司 | Intelligent electronic bus stop |
| CN103955977A (en) * | 2014-04-30 | 2014-07-30 | 复旦大学 | Method for counting number of people in bus based on 4G base station |
| CN105809896A (en) * | 2016-05-06 | 2016-07-27 | 中国人民解放军军事交通学院 | Bus comprehensive information system with flammable and explosive gas and passenger flow monitoring and analyzing function |
| CN105869399A (en) * | 2016-05-11 | 2016-08-17 | 南京信息职业技术学院 | Real-time bus crowding degree query system |
| CN109816183A (en) * | 2019-03-28 | 2019-05-28 | 南京行者易智能交通科技有限公司 | A kind of optimization method and device of accurate bus passenger flow big data |
| CN112381977A (en) * | 2020-11-24 | 2021-02-19 | 中铁第一勘察设计院集团有限公司 | Counting system for number of people who pass in and out in train inspection and top-climbing operation |
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