CN101916508A - Intelligent stand system of taxi - Google Patents

Intelligent stand system of taxi Download PDF

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Publication number
CN101916508A
CN101916508A CN 201010247827 CN201010247827A CN101916508A CN 101916508 A CN101916508 A CN 101916508A CN 201010247827 CN201010247827 CN 201010247827 CN 201010247827 A CN201010247827 A CN 201010247827A CN 101916508 A CN101916508 A CN 101916508A
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China
Prior art keywords
taxi
gps
data
platform
control system
Prior art date
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Pending
Application number
CN 201010247827
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Chinese (zh)
Inventor
吕永华
俞军
毛剑
张波
陈耸
郑庆辉
王总辉
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HANGZHOU ZHEYING TECHNOLOGY Co Ltd
HANGZHOU TRAFFIC INFORMATION TECHNOLOGY Co Ltd
Original Assignee
HANGZHOU ZHEYING TECHNOLOGY Co Ltd
HANGZHOU TRAFFIC INFORMATION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by HANGZHOU ZHEYING TECHNOLOGY Co Ltd, HANGZHOU TRAFFIC INFORMATION TECHNOLOGY Co Ltd filed Critical HANGZHOU ZHEYING TECHNOLOGY Co Ltd
Priority to CN 201010247827 priority Critical patent/CN101916508A/en
Publication of CN101916508A publication Critical patent/CN101916508A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an intelligent stand system for calling or prebooking a taxi and aims at ensuring that the provided system is required to be convenient for passengers to travel, effectively advance the standard and orderly operation of the taxies, relieve the urban road jam, reduce the resource waste, save the energies, reduce the emission, reduce the labor intensity of drivers and improve the operation efficiency of urban traffic systems. The intelligent stand system is characterized by comprising a GPS (Global Position System) scheduling center, a plurality of stand stations distributed on each place of city and country and a GPS terminal arranged on the taxi, wherein the GPS scheduling center carries out voice and data transmission with each stand station through a network; each stand station is also respectively provided with a light box type stop board, a control system, a liquid crystal display screen, a camera, a card reader for a citizen to swipe card and call the taxi and a special keyboard; an industrial control computer carries out the voice and data transmission with the GPS scheduling center through the network; and the GPS scheduling center also carries out the voice and data transmission with the GPS terminal arranged on the taxi through a wireless network.

Description

Intelligent stand system of taxi
Technical field
The present invention relates to a kind of vehicle reservation service system, especially call out and intelligence that predetermined taxi is used is picked up system.
Background technology
Domestic have many cities to begin to carry out taxi to pick up platform work.The taxi in Shenzhen is picked up station board and is equipped with sign board, state clearly contents such as bus stop numbering, operating unit, management time limit, authentication code, station board is provided with awning, station board has stated clearly site name in remarkable position, taxi is called phone and website character (promptly stopping promptly to walk or wait the passenger station) by cable, the station board energising, power-off time is 24 points, round-the-clock the coming into operation of bus stop " calling pilot lamp ".It is the lamp box type station board that the Chongqing taxi is picked up station board, is combined by two lamp boxes, and " promptly go up promptly down, promptly stop promptly to walk " tax rank TAXI printed words are arranged on the lamp box at top, and the lamp box of below is the advertisement position zone.The taxi in Chengdu is picked up board and is divided into 2 classes, and a class is simple station board formula anchor point, and station board is made up of the city tree ginkgo Leaves'Shape station board in mobile jib and Chengdu.Second class is that lamp box type is picked up platform, and the top lamp box lights when chauffeur automatically to remind taxi to need to call a taxi herein.It all is simple lamp box type station board that these taxis are picked up platform, is used to refer to herein and can stops taxi, perhaps presses the button with regard to bright lamp and comes to connect the passenger with the indication near taxi, is not intelligent station board, and does not combine with intelligent dispatching system.This platform of picking up can not change the taxi operation modes such as " HOP ONs " of " sweeping road ", and is little to making things convenient for the public to go on a journey, improve the operational efficiency effect of urban transportation system.
Summary of the invention
Technical matters to be solved by this invention is the deficiency that overcomes the above-mentioned background technology, the improvement that provides a kind of taxi to pick up system, this pick up system should have make things convenient for the passenger to go on a journey, can effectively advance the standardized and orderly operation of taxi, alleviate urban road congestion, energy-saving and emission-reduction, the characteristics that reduce the wasting of resources to greatest extent, reduce driver's labour intensity and promote the operational efficiency of urban transportation system.
The invention provides following technical scheme:
Intelligent stand system of taxi, comprise the GPS dispatching center, be dispersed in each place, town and country a plurality ofly pick up platform and be installed in GPS terminal on the taxi, the GPS dispatching center carries out the voice-and-data transmission by wireless network and the GPS terminal that is installed on the taxi; Described GPS dispatching center by network with respectively pick up platform and carry out the voice-and-data transmission, respectively pick up platform and also be furnished with the lamp box type station board of indicating name of station respectively; It is characterized in that each picks up platform and also dispose a control system and the LCDs of connecting with control system, monitor card reader that near the information that reads when situation is used the station board camera, citizen swipe the card chauffeur is used and the keyboard special that is used for chauffeur; This industrial computer also carries out the voice-and-data transmission by network and GPS dispatching center.
Described control system comprises an industrial computer, is installed in card reading module, the gps data transport module on this industrial computer and is convenient to passenger's input key-press module for information about.
Described control system also disposes one and is printed as the send a car printer of information of merit.
Described control system also disposes one scan and reads the barcode scanner of the professional odd numbers on the receipt.
Described control system also disposes conversation, the microphone of the usefulness that plays sound and audio amplifier.
This is picked up platform and also disposes the LED screen.
Principle of work of the present invention is: all arranging eye-catching lamp box type station board owing to respectively pick up platform, needing the passenger of taxi can find this intelligence to pick up platform easily near the platform.Passenger's operating process is: the initial interface that shows on the display screen is electronic chart and dynamic vehicle; The passenger promptly enters the chauffeur interface by acknowledgement key; Then the passenger swipes the card by (transportation card or citizen's card), and display screen just shows the information of the card of being brushed, and comprises remaining sum in card number and the card; If this moment, the passenger pressed the acknowledgement key on the keyboard special, can send the chauffeur request of swiping the card, single by GPS dispatching center group; If there is taxi to pass through the competition for orders of GPS terminal, then the information of the taxi of leading up forward at first sent to platform, and print receipt; Show the vehicle in robbing on map interface and the LED screen, the passenger with receipt by bus.If the passenger cancels task for some reason, then press the cancel key on the keyboard special at the chauffeur interface, enter task cancellation interface, the bar code on the brush receipt, and the acknowledgement key of pressing on the keyboard special is cancelled task.
The invention has the beneficial effects as follows: because total system makes up computer software and hardware, GPS and the network communications technology, thereby realized the taxi intelligent scheduling, successfully the business model with original " car looks for people, people to look for car " changes " people, people such as car waits for bus " into; Not only bring great convenience, effectively promoted the standardized and orderly operation of taxi, significantly promoted the operational efficiency of urban transportation system to passenger's trip, and can obviously alleviate urban road congestion, reduced the wasting of resources to greatest extent, energy-saving and emission-reduction have reduced driver's labour intensity.
Description of drawings
Fig. 1 is each the parts annexation synoptic diagram of picking up platform among the present invention.
Fig. 2 picks up the special-purpose Card Reader in the control system of platform and the electrical block diagram of case equipment master chip.
Fig. 3 is an electrical block diagram of picking up the card reading antennas plate in the control system of platform.
Fig. 4 is an electrical block diagram of picking up the card reading module in the control system of platform.
Fig. 5 is an electrical block diagram of picking up the key-press module in the control system of platform.
Fig. 6 is the interface circuit structural representation of picking up in the control system of platform.
Fig. 7 is the workflow synoptic diagram that intelligence is picked up system.
Embodiment
As shown in the figure, intelligent stand system of taxi, a plurality of platforms (quantity of picking up platform is determined as required) of picking up that comprise GPS dispatching center (can utilize existing GPS dispatching center) and be dispersed in each place, town and country; Described GPS dispatching center by network with respectively pick up platform and carry out the voice-and-data transmission, respectively pick up platform and also be furnished with the lamp box type station board of indicating name of station (the similar outdoor lamp house of station board external form, high about 2.6 meters, wide 1 meter, station board built-in light source) respectively; This is picked up platform and also disposes a control system and the display screen of connecting with control system, monitors the card reader that near the information that reads when situation is used the platform camera, citizen swipe the card chauffeur uses, the keyboard special that is used for chauffeur; This control system (is a central server by network and GPS dispatching center also; The abbreviation dispatching center) carries out the voice-and-data transmission.
The GPS dispatching center also carries out voice-and-data transmission (voice-and-data of GPS dispatching center and GPS terminal is transmitted as prior art) by wireless network and the GPS terminal that is installed on the taxi.
Described control system comprises an industrial computer, and this industrial computer is communicated with card reading module respectively, and the GPRS data transmission module of connecting with the dispatching center and be convenient to passenger's input key-press module for information about.
This control system also disposes a printer that is printed as the information of sending a car of merit chauffeur, and scanner uni reads the barcode scanner of the professional odd numbers on the receipt.
This control system also disposes conversation, the microphone of the usefulness that plays sound and audio amplifier.
This control system also disposes one and is used for roll display Word message LED screen.
The equal buyable of above-mentioned all appts device.
The function of each device is as follows among the present invention:
Industrial computer: receive passenger's data input, communicate, control the work of other equipment of this platform with the dispatching center.
Display screen (32 cun liquid crystal): half of display screen is used for display ads information, comprises commercial advertisement and public welfare advertisement; Second half LCDs is used for showing the taxi information of near electronic chart (the GIS map shows picking up site location) and near near current location (2 kilometer range are interior picking up platform).
Printer: the information of sending a car of printing successful chauffeur.
Pinhole cameras: monitor near the situation that station board is.
Card reader: citizen's card reads citizen's card information when swiping the card chauffeur.
Button: be used for the button chauffeur, dial center phone etc.
Microphone and audio amplifier: the usefulness of conversing, play sound.
Bar code scan: the bar code on the scanning receipt is used for reading the professional odd numbers on the receipt.
Ceiling light lamp box: pick up platform mark and advertisement.
LED display: roll and report chauffeur receipt information or Word message.
The principle of work of each several part is:
1, special-purpose card reader part
Information acquisition: antenna plate (card reading antennas plate, circuit is as shown in Figure 3) on have a ring circuit to form induction zone, adopt the form of emission alternating magnetic field to provide energy, have inductive coil to receive the energy (electromagnetic induction transformer principle) of alternating magnetic field on citizen's card and give a response signal to make antenna plate reception data read the card internal information to citizen's card.
Data output: the data after will resolving (R232 data) pass to computer (industrial computer).
Data processing method: after the parsing of the information via card reader that antenna plate is obtained and the authentication, convert the information that to discern to, and be passed to computer by the R232 interface.
The functions of card reader realization flow: it (is the industrial computer master chip that the information that obtains on the antenna plate is delivered to master chip by the P1 interface; P3 socket as shown in Figure 2) is delivered to card reading module (preferred MFRC500 by the TX2 interface again; As shown in Figure 4), through after the authentification of message of card reading module, communicate information to AD0 to the AD3 socket of master chip (preferred MEGA128L) by AD0 to AD3 socket, by master chip information is resolved, the information after the parsing is passed through serial interface chip (preferred MAX3232CUE from the RXD and the TXD socket of master chip; TXDPC as shown in Figure 6) and RXDPC socket are delivered to connector (D Connector 9; The outsourcing element omits drawing) on TXDPC and RXDPC socket pass to computer.
2, keyboard special part
The input of keypress function: two button inputs;
Output: the key assignments of two keys (R232 data) is passed to computer;
Data processing method: according to which switching value be pressed, after system detects, produce data,, key value is transferred to computer by the R232 interface.
Keypress function (circuit of key-press module as shown in Figure 5) realization flow: 2 buttons are arranged on the keypad: " affirmation " key, " cancellation " key (being P1, P2 key).After any key is pressed, after single-chip microcomputer detects corresponding information, by KEY1-KEY2 detection signal is passed to master chip, master chip passes through TXDPC and the RXDPC socket that RXD and TXD socket are delivered to interface chip (preferred MAX3232CUE) after signal is discerned again, passes to computer by TXDPC and RXDPC socket on the connector (D Connector 9) at last.
3, all undertaken with phone, the data transmission of dispatching center by network; The configuration of IP phone and GPRS data transmission module and working method are all same as the prior art.
4, computer (industrial computer) is connected with the data of camera, LCD TV, stereo set, bar code scan, and is connected (by the R232 interface) with the data of LED display, printer, is normal signal connected mode (prior art); No longer carefully state.
The chauffeur flow process
The initial interface of chauffeur of swiping the card is that electronic chart and dynamic vehicle show, enter the chauffeur interface by acknowledgement key, the passenger swipes the card, and just shows the information of the card of being brushed, and comprises remaining sum in card number, the card.If this moment, the passenger pressed acknowledgement key, can send the chauffeur request of swiping the card, group is single through dispatching center's intelligence, if the car competition for orders is arranged, then the information of robbing near car is at first sent to station board, and prints receipt.Show the vehicle in robbing on map interface and the LED screen, the passenger with receipt by bus.If the passenger cancels task for some reason, then press cancel key at the chauffeur interface, enter task cancellation interface, the bar code on the brush receipt, and press acknowledgement key cancellation task.
1, electronic chart and near vehicle show
Data content: the coded data of information such as the longitude at vehicle place, latitude, speed, direction.
Data Source: dispatching center's server
Data-interface: network interface
Data processing: data are decoded and mate.
Output result: show electronic chart and near vehicle location on the LCD TV.
2, swipe the card and display message
Data content: data such as card number, the interior remaining sum of card.
Data Source: citizen's card.
Data-interface: arrive industrial computer by special-purpose card reader.
Data processing:, after identification is an opening and closing method card, read data such as card number, the interior remaining sum of card with crossing authentication.
Output result: on LCD TV, show card using information.
3, affirmation/cancellation chauffeur
Data content: affirmation/cancelling signal.
Data Source: keyboard special.
Data-interface: keyboard special is to industrial computer.
Data processing: by contacting, convert level signal the key information of to "+" character (or "-" character), be input to industrial computer by " affirmations " key (or " cancellation ").
The output result: system identification institute is by being " affirmation " or " cancellation ".
4, submit chauffeur information to
Data content: pick up data such as platform numbering, citizen's card number.
Data Source: industrial computer.
Data-interface: network interface.
Data processing: these data are encoded, and send to dispatching center's server.
Output result: data are sent to dispatching center's server.
5, receive the information of sending a car and demonstration
Data content: data such as professional numbering, license number, company, vehicle, color, longitude and latitude.
Data Source: dispatching center's server.
Data-interface: network interface.
Data processing: these information are decoded.
Output result: on LCD TV, show the information of sending a car.
6, print receipt
Data content: data such as professional numbering, license number, company, vehicle, color, longitude and latitude.
Data Source: industrial computer.
Data-interface: thermal printer.
Data processing: the time of calculating vehicle and picking up the distance between the platform and estimating to arrive, these data are sent to printer, and be printed on the scraps of paper.
Output result: the scraps of paper that are printed on the time of professional numbering, license number, company, vehicle, color, distance and expectation arrival.
7, task car monitoring
Data content: data such as the longitude and latitude of vehicle, speed.
Data Source: dispatching center's server.
Data-interface: network interface.
Data processing: calculate up-to-date distance and estimated time of arrival (ETA).
Output result: on LCD TV, show the latest position information of being sent a car.
8, LED shows the information of sending a car
Data content: the data such as time that professional numbering, license number, up-to-date distance and expectation arrive.
Data Source: industrial computer.
Data-interface: LED screen.
Data processing: these data are sent to the LED screen.
Output result: on the LED screen, show the information of sending a car.
9, the cancellation request of sending a car
Data content: cancelling signal.
Data Source: keyboard special.
Data-interface: keyboard special is to industrial computer.
Data processing: by by " cancellation " key contacts, convert level signal the key information of to "-" character, be input to industrial computer.
The output result: system identification by be " cancellation " key, eject dialog box, wait for bar code input.
10, the job order bar code reads
Data content: professional numbering.
Data Source: the business numbering bar code on the receipt.
Data-interface: laser bar code projection scanner is to industrial computer.
Data processing: bar-code scanner after the business that is decoded into is numbered, is imported industrial computer according to barcode encoding.
Output result: on LCD TV, show the bar code of being brushed.
11, confirm that cancellation is professional
Data content: affirmation/cancelling signal.
Data Source: keyboard special.
Data-interface: keyboard special is to industrial computer.
Data processing: by contacting, convert level signal the key information of to "+" character (or "-" character), be input to industrial computer by " affirmations " key (or " cancellation ").
The output result: system identification institute is by being " affirmation " or " cancellation ".
12, send the cancellation service request
Data content: signals such as professional numbering, license number.
Data Source: industrial computer.
Data-interface: network interface.
Data processing: these data are encoded, send to central server.
Output result: business cancellation request is sent to dispatching center's server.
13, receive professional cancellation confirmation
Data content: signals such as professional numbering, license number.
Data Source: central server.
Data-interface: network interface.
Data processing: these data are decoded.
The output result: display business is cancelled successfully on LCD TV.
14, voice call
Data content: voice call data.
Data Source: passenger's speech.
Data-interface: GPRS Modem.
Data processing: industrial computer dials in to GSM Modem behind the voice server of center and the telephonist converses.
Output result: conversation.
15, video monitoring
Data content: video data.
Data Source: video before the platform.
Data-interface: pinhole cameras and Audio and Video Processing Card.
Data processing: video data to Audio and Video Processing Card, is transferred to industrial computer by camera collection, and video module software shows.
Output result: on LCD TV, show the camera content of shooting in real time.
The workflow that intelligence is picked up system as shown in Figure 6.
Embodiment:
On September 7th, 2008, intelligent stand system of taxi is installed and is begun trial run at the Tianyuan mansion.To at present, running situation is good.
The intelligence public service system provides use citizen card or free chauffeur of traffic T card and voice dial-a-cab, shows this regional electronic chart and detailed taxi operation information simultaneously in real time, allow beat become convenient and swift.Station board trial run period average chauffeur every day amount is about 30 times.
The Tianyuan mansion is positioned at the city east, Hangzhou, and this place is taken a taxi relatively more difficult always.After intelligence is picked up platform and come into operation, alleviated the difficult problem of restaurant's chauffeur to a great extent, it is succinctly understandable to pick up the platform operation, has made things convenient for the guest to call a taxi, and has obtained guest's approval, has also promoted restaurant's image simultaneously.

Claims (6)

1. intelligent stand system of taxi, comprise the GPS dispatching center, be dispersed in each place, town and country a plurality ofly pick up platform and be installed in GPS terminal on the taxi, the GPS dispatching center carries out the voice-and-data transmission by wireless network and the GPS terminal that is installed on the taxi; Described GPS dispatching center by network with respectively pick up platform and carry out the voice-and-data transmission, respectively pick up platform and also be furnished with the lamp box type station board of indicating name of station respectively; It is characterized in that each picks up platform and also dispose a control system and the LCDs of connecting with control system, monitor card reader that near the information that reads when situation is used the station board camera, citizen swipe the card chauffeur is used and the keyboard special that is used for chauffeur; This industrial computer also carries out the voice-and-data transmission by network and GPS dispatching center.
2. intelligent stand system of taxi according to claim 1 is characterized in that described control system comprises an industrial computer, is installed in card reading module, the gps data transport module on this industrial computer and is convenient to passenger's input key-press module for information about.
3. intelligent stand system of taxi according to claim 1 and 2 is characterized in that described control system also disposes one and is printed as the send a car printer of information of merit.
4. intelligent stand system of taxi according to claim 3 is characterized in that described control system also disposes one scan and reads the barcode scanner of the professional odd numbers on the receipt.
5. intelligent stand system of taxi according to claim 4 is characterized in that described control system also disposes conversation, the microphone of the usefulness that plays sound and audio amplifier.
6. intelligent stand system of taxi according to claim 5 is characterized in that this picks up system and also dispose LED screen.
CN 201010247827 2010-08-05 2010-08-05 Intelligent stand system of taxi Pending CN101916508A (en)

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CN102184643A (en) * 2011-05-03 2011-09-14 郑州大学 Intelligent public transport crew system
CN102324181A (en) * 2011-08-08 2012-01-18 上海市城市建设设计研究院 Self-service taxi instant reservation system and self-service taxi instant reservation method
CN102394007A (en) * 2011-07-13 2012-03-28 南京通用电器有限公司 Self-service type taxi calling system
CN102426777A (en) * 2011-09-22 2012-04-25 上海新赛隆网络科技有限公司 Self-service taxi-calling system and method
CN102737448A (en) * 2012-06-02 2012-10-17 赵明新 Self-help wireless taxi calling system controlled by radio frequency identification card based on radio frequency identification (RFID) technology
CN102938198A (en) * 2011-12-26 2013-02-20 刘胜强 Public transportation distribution method and public transportation system
CN103198646A (en) * 2013-03-25 2013-07-10 无锡市崇安区科技创业服务中心 Taxi calling system
CN103198644A (en) * 2013-03-22 2013-07-10 无锡市崇安区科技创业服务中心 Intelligent taxi stop
CN103456166A (en) * 2013-09-03 2013-12-18 北京奇华通讯有限公司 Internet car arranging terminal
CN103971518A (en) * 2014-05-27 2014-08-06 李志常 Taxi-taking system and method
CN104504929A (en) * 2015-01-15 2015-04-08 王桃荣 Intelligent taxi taking system
CN104658242A (en) * 2015-03-09 2015-05-27 深圳市晨芳文化传媒有限公司 Taxi booking system based on fixed taxi booking terminal
CN104680784A (en) * 2015-03-09 2015-06-03 深圳市晨芳文化传媒有限公司 Car reservation car-mounted terminal
CN104680783A (en) * 2015-03-09 2015-06-03 深圳市晨芳文化传媒有限公司 Fixed car booking terminal
CN108122421A (en) * 2016-11-29 2018-06-05 上海固厚寿记贸易有限公司 Bus or train route personage interactive system and application method based on intelligent network interconnection technique
CN112562125A (en) * 2020-11-18 2021-03-26 深圳易马达科技有限公司 Wireless unlocking lease system
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Publication number Priority date Publication date Assignee Title
CN102184643B (en) * 2011-05-03 2015-07-15 郑州大学 Intelligent public transport crew system
CN102184643A (en) * 2011-05-03 2011-09-14 郑州大学 Intelligent public transport crew system
CN102394007A (en) * 2011-07-13 2012-03-28 南京通用电器有限公司 Self-service type taxi calling system
CN102324181A (en) * 2011-08-08 2012-01-18 上海市城市建设设计研究院 Self-service taxi instant reservation system and self-service taxi instant reservation method
CN102426777A (en) * 2011-09-22 2012-04-25 上海新赛隆网络科技有限公司 Self-service taxi-calling system and method
CN102938198A (en) * 2011-12-26 2013-02-20 刘胜强 Public transportation distribution method and public transportation system
CN102737448A (en) * 2012-06-02 2012-10-17 赵明新 Self-help wireless taxi calling system controlled by radio frequency identification card based on radio frequency identification (RFID) technology
CN103198644A (en) * 2013-03-22 2013-07-10 无锡市崇安区科技创业服务中心 Intelligent taxi stop
CN103198646A (en) * 2013-03-25 2013-07-10 无锡市崇安区科技创业服务中心 Taxi calling system
CN103456166A (en) * 2013-09-03 2013-12-18 北京奇华通讯有限公司 Internet car arranging terminal
CN103971518B (en) * 2014-05-27 2016-06-08 李志常 A kind of taxi taxi take system and method
CN103971518A (en) * 2014-05-27 2014-08-06 李志常 Taxi-taking system and method
CN104504929A (en) * 2015-01-15 2015-04-08 王桃荣 Intelligent taxi taking system
CN104658242A (en) * 2015-03-09 2015-05-27 深圳市晨芳文化传媒有限公司 Taxi booking system based on fixed taxi booking terminal
CN104680784A (en) * 2015-03-09 2015-06-03 深圳市晨芳文化传媒有限公司 Car reservation car-mounted terminal
CN104680783A (en) * 2015-03-09 2015-06-03 深圳市晨芳文化传媒有限公司 Fixed car booking terminal
CN108122421A (en) * 2016-11-29 2018-06-05 上海固厚寿记贸易有限公司 Bus or train route personage interactive system and application method based on intelligent network interconnection technique
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CN112562125A (en) * 2020-11-18 2021-03-26 深圳易马达科技有限公司 Wireless unlocking lease system
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CN113108802B (en) * 2021-03-10 2022-11-01 汉海信息技术(上海)有限公司 Navigation method, device, server, system and medium

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Application publication date: 20101215