WO2017012227A1 - 一种城市公共交通视障人士助乘系统及方法 - Google Patents

一种城市公共交通视障人士助乘系统及方法 Download PDF

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Publication number
WO2017012227A1
WO2017012227A1 PCT/CN2015/094828 CN2015094828W WO2017012227A1 WO 2017012227 A1 WO2017012227 A1 WO 2017012227A1 CN 2015094828 W CN2015094828 W CN 2015094828W WO 2017012227 A1 WO2017012227 A1 WO 2017012227A1
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WIPO (PCT)
Prior art keywords
vehicle
bus
smart phone
visually impaired
tag
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PCT/CN2015/094828
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English (en)
French (fr)
Inventor
张传春
谢海涛
刘松涛
林锴
邝维威
李胜忠
张彬
Original Assignee
广州华途信息科技有限公司
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Publication of WO2017012227A1 publication Critical patent/WO2017012227A1/zh

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor

Definitions

  • the invention relates to the field of information navigation technology, in particular to a system and method for assisting a visually impaired person in urban public transportation.
  • the number of visually impaired people in the country is more than 7 million, accounting for 18% of the total number of visually impaired people in the world.
  • there are more than 12 million people with amblyopia in the country which together account for about 1.5% of the country's total population. This part of the population is limited by economic conditions.
  • the bus lines are relatively dense, the bus travel is relatively economical.
  • Most of the visually impaired people prefer to travel by bus, but they are limited by sight.
  • the public travel of visually impaired people has many inconveniences. Visually impaired people need to be accompanied by special personnel and assistive tools such as guide canes, guide dogs, etc., but due to economic and policy factors, the use of guide dogs in the country is extremely low.
  • the common technologies on the market are the use of ultrasonic waves for distance measurement and obstacle avoidance, the use of microwave to sense vehicles or platforms, the use of infrared for short-range communication, and the design of dedicated handheld terminals to control vehicle broadcast line voices, etc.
  • Most of the information systems are run independently and cannot be intelligently assisted.
  • these methods have the following disadvantages: 1. Because the actual running bus and bus lines are dynamically changing, the changes are quite frequent, and the method of using ultrasonic ranging cannot adapt to the actual situation of dynamic changes, and it is easy to cause incorrect guidance due to data inconsistency. . 2.
  • the microwave sensing device has high economic cost, high construction and maintenance cost, and needs power supply from the mains.
  • an object of the present invention is to provide a system for assisting a visually impaired person in urban public transportation
  • another object of the present invention is to provide a method for assisting a visually impaired person in urban public transportation.
  • a public transportation system for urban visually impaired persons including a smart cloud platform, a vehicle-mounted blind terminal, a smart phone, a vehicle tag for uniquely identifying a bus, and a site tag for uniquely identifying a bus stop.
  • the vehicle-mounted guide terminal and the vehicle tag are both mounted on a public transportation vehicle, and the site tag is installed at a bus stop, and the smart phone is wirelessly connected to the vehicle-mounted guide terminal, the vehicle tag and the site tag, respectively, the smart phone and the smart cloud.
  • Platform wireless connection
  • the smart cloud platform is configured to receive a travel route sent by the smart phone, send a site tag code list of the line to the smart phone, and push the closest vehicle tag code list to the smart phone according to the site tag signal collected by the smart phone in real time;
  • the smart phone is used to send the travel line to the intelligent cloud platform and store the site tag code list returned by the smart cloud platform, collect the surrounding site tag signal in real time and feed back to the smart cloud platform to receive the closest vehicle returned by the smart cloud platform.
  • the tag coding list is combined with the real-time collected site tag signal and the vehicle tag signal to assist the visually impaired person, and the car-guided terminal is controlled to perform a voice broadcast reminder.
  • the smart cloud platform includes a cloud control host, a bus information database, a cloud voice database, and a cloud map database, and the smart phones are wirelessly connected to the cloud control host, the bus information database, the cloud voice database, and the cloud map database, respectively.
  • the vehicle-mounted guide terminal includes an embedded processor, a first low-power Bluetooth communication module, a communication interface module, a power supply module, a power amplifier circuit, and an audio codec circuit, and the embedded processor and the first low-power device respectively
  • the Bluetooth communication module, the communication interface module, the power supply module, the power amplifier circuit, and the audio codec circuit are connected, and the vehicle-mounted blind terminal is wirelessly connected to the smart phone through the first low-power Bluetooth communication module, and the power amplifier circuit and the bus External speaker connection.
  • the vehicle tag and the site tag both adopt a low power Bluetooth tag
  • the low power Bluetooth tag includes a second low power Bluetooth communication module, a lithium battery, a tamper circuit, a button module, and an antenna
  • the second The low-power Bluetooth communication module is respectively connected to a lithium battery, a tamper circuit, a button module, and an antenna.
  • the urban public transportation visually impaired passenger assistance system according to claim 4, wherein the low-power Bluetooth tag is packaged in a waterproof and dustproof casing.
  • the method further includes a roadside information collecting device installed on a bus repair station, a gas station and/or a gas station for collecting information on the vehicle guide blind terminal, wherein the roadside information collecting device comprises an embedded main processor, a data storage module, a power supply circuit, a third low-power Bluetooth communication module, and a remote wireless communication module, the embedded main processor and the data storage module, the power supply circuit, the third low-power Bluetooth communication module, and the remote wireless communication module
  • the roadside information collecting device is wirelessly connected to the vehicle-mounted blind terminal through a third low-power Bluetooth communication module, and the roadside information collecting device is wirelessly connected to the intelligent cloud platform through the remote wireless communication module.
  • the public transportation information database is a data collection, processing and storage center of the public transportation vehicle data, the bus line station data, the bus station platform data, and the bus operation dynamic data based on the cloud service, and the public transportation information database includes public transportation dynamics and static data.
  • the public transportation dynamic data refers to public transportation inbound and outbound station data
  • the public transportation static data includes vehicle data, line station data, and station data;
  • the cloud voice database is a third-party cloud service-based voice data collection, voice synthesis, voice and semantic recognition collection, processing, and storage center, and the cloud voice database is used to collect text according to a user request of the smart phone.
  • the information is converted into speech, or the collected speech semantics is converted into text information and fed back to the smart phone;
  • the cloud map database is a third-party cloud service-based urban road data, terrain data, and point of interest data collection, processing, and storage center, and the cloud map database is configured to locate a user's current location and display the periphery according to the request of the smart phone. Roads, terrain, points of interest, and bus route.
  • the smart phone is also connected with a bone conduction earphone.
  • a method for assisting a visually impaired person in urban public transportation characterized in that it comprises:
  • the smart cloud platform After receiving the travel route sent by the smart phone, the smart cloud platform obtains all the route sites of the route and the corresponding site tag code list and feeds back to the smart phone;
  • the smart phone collects the surrounding site tag signals in real time and compares them with the site tag code list, so as to determine whether the collected site tag signals match the travel route, and when the matching is successful, the corresponding voice prompt information is sent, and the matching will be matched.
  • the site label signal is sent to the intelligent cloud platform and step S4 is performed;
  • the intelligent cloud platform acquires driving dynamic data of the public transportation vehicle corresponding to the travel route, generates corresponding voice prompt information and sends the corresponding voice prompt information to the smart phone for broadcast, and simultaneously pushes the closest vehicle label code list to the smart phone;
  • the smartphone collects the vehicle tag signal of the inbound bus vehicle in real time and matches the vehicle tag code list, and after the matching is successful, automatically plays the corresponding voice prompt information, and performs step S6;
  • the smart phone establishes a connection with the vehicle-mounted blind terminal on the public transportation vehicle, and then sends the travel line and the successfully matched vehicle label signal to the vehicle-mounted blind terminal;
  • the vehicle-guided blind terminal performs matching after receiving the data. If the matching is successful, the voice broadcast is used to guide the visually impaired person to get on the vehicle;
  • the smart phone collects the site tag signal of each station passing by the bus in real time, and matches the site tag code list corresponding to the travel route. If the match is successful, the corresponding voice prompt information is played, and at the same time, the travel route is judged to arrive. When the transfer station or destination station is played, the corresponding voice prompt information is played.
  • the smartphone collects the surrounding site tag signal and the vehicle tag signal in real time to determine whether the visually impaired person successfully enters the car and plays the corresponding voice prompt information.
  • step S1 is specifically as follows:
  • the travel route of the visually impaired person is analyzed and sent to the intelligent cloud platform according to the common itinerary, the frequent sitting route or the temporary car route selected by the visually impaired person.
  • the intelligent cloud platform includes a cloud control host, a bus information database, a cloud voice database, and a cloud map database, and the step S2 is specifically:
  • the smart cloud platform After receiving the travel route sent by the smart phone, the smart cloud platform obtains all the route sites of the route and the corresponding site tag code list from the bus information database, and then feeds back to the smart phone.
  • step S4 is specifically:
  • the intelligent cloud platform combines the bus information database and the cloud map database to obtain the driving dynamic data of the public transportation vehicle corresponding to the travel route, and generates the corresponding voice prompt information in combination with the cloud voice database to be sent to the smart phone for broadcast, and simultaneously pushes the closest to the smart phone.
  • Vehicle tag code list
  • step S8 includes:
  • the smart phone collects the site tag signal of each station passing by the bus in real time, and matches the site tag code list corresponding to the travel route. If the match is successful, the corresponding voice prompt information is played;
  • the invention has the beneficial effects that the urban public transportation visually impaired passenger assistance system of the present invention receives the travel route sent by the smart phone through the intelligent cloud platform, and then sends the site tag code list of the line to the smart phone, and according to the smart phone Real-time collection of site tag signals, pushing the closest vehicle tag code list to the smartphone; and collecting the surrounding sites in real time after the smartphone is used to send the travel line to the smart cloud platform and store the list of site tag codes returned by the smart cloud platform After the tag signal is fed back to the intelligent cloud platform, the closest vehicle tag code list returned by the smart cloud platform is received, and the visually impaired person is assisted in combination with the real-time collected site tag signal and the vehicle tag signal, and the vehicle-guided terminal is controlled. Voice broadcast reminder.
  • the invention enables the visually impaired person to use the smart phone to read and broadcast the information of the public transportation vehicle and the station, combines the real-time data of the public transportation stored by the intelligent cloud platform, and broadcasts the public transportation information through the vehicle-guided blind terminal, guiding the visually impaired person to take the public transportation vehicle and the intelligence. High degree of conversion, low input cost, good data stability and high reliability.
  • Another advantageous effect of the present invention is: a method for assisting a visually impaired person in urban public transportation according to the present invention, comprising: obtaining a travel route of a visually impaired person through a smart phone, and transmitting the travel route to the intelligent cloud platform; and acquiring the route by the intelligent cloud platform All the passing sites and the corresponding site tag encoding list are fed back to the smart phone; the smart phone collects the surrounding site tag signals in real time and compares them with the site tag encoding list, thereby judging whether the collected site tag signals match the travel route, and When the matching is successful, the corresponding voice prompt information is sent, and the matched site label signal is sent to the intelligent cloud platform; the intelligent cloud platform acquires the driving dynamic data of the public transportation vehicle corresponding to the travel route, and pushes the closest vehicle label encoding list to the smart phone.
  • the smartphone collects the vehicle tag signal of the inbound bus vehicle in real time and matches with the vehicle tag code list; the smart phone establishes a connection with the vehicle guide blind terminal on the bus, and then transmits the travel line and the successfully matched vehicle tag signal to the vehicle.
  • Guide blind terminal The blind terminal performs matching after receiving the data. If the matching is successful, the voice broadcast is used to guide the visually impaired person to get on the vehicle; the smart phone collects the site label signal of each station passing by the public transportation vehicle in real time, and the site corresponding to the travel line The tag code list is matched. If the match is successful, the corresponding voice prompt information is played, and when the transfer station or the destination station that arrives at the travel route is judged, the corresponding voice prompt information is played.
  • the method can use the smart phone to read and broadcast the information of the bus and the station, combine the real-time data of the bus stored by the intelligent cloud platform, and broadcast the public information through the vehicle-guided blind terminal, guiding the visually impaired person to take the bus, and the intelligence is high. Low input cost, good data stability and high reliability.
  • FIG. 1 is a first structural block diagram of a city public transportation visually impaired passenger assistance system of the present invention
  • FIG. 2 is a second structural block diagram of the urban public transportation visually impaired passenger assistance system of the present invention.
  • FIG. 3 is a structural block diagram of a low-power Bluetooth tag of the urban public transportation visually impaired passenger assistance system of the present invention
  • FIG. 4 is a circuit schematic diagram of an embedded processor of a vehicle-mounted blind terminal of the urban public transportation visually impaired passenger assistance system of the present invention
  • FIG. 5 is a schematic diagram of a hardware watchdog circuit of an embedded processor of a vehicle-mounted blind terminal of the urban public transportation visually impaired passenger assistance system of the present invention
  • FIG. 6 is a circuit schematic diagram of an embedded processor of a vehicle-mounted blind terminal of the urban public transportation visually impaired passenger assistance system of the present invention
  • FIG. 7 is a circuit schematic diagram of a power amplifier circuit of a vehicle-mounted blind terminal of the urban public transportation visually impaired passenger assistance system of the present invention.
  • FIG. 8 is a circuit schematic diagram of an audio codec circuit of a vehicle-mounted blind terminal of the urban public transportation visually impaired passenger assistance system of the present invention.
  • Figure 9 is a matching circuit diagram of the antenna of Figure 3.
  • the present invention provides a city public transportation visually impaired passenger assistance system, including an intelligent cloud platform, a vehicle-mounted blind terminal, a smart phone, a vehicle tag for uniquely identifying a bus, and a bus stop for Performing a uniquely identified site tag, the car-guided terminal and the vehicle tag are both mounted on a bus, the site tag is installed at a bus stop, and the smart phone is wirelessly connected to the vehicle-guided terminal, the vehicle tag, and the site tag, respectively The smart phone is wirelessly connected to the smart cloud platform;
  • the smart cloud platform is configured to receive a travel route sent by the smart phone, send a site tag code list of the line to the smart phone, and push the closest vehicle tag code list to the smart phone according to the site tag signal collected by the smart phone in real time;
  • the smart phone is used to send the travel line to the intelligent cloud platform and store the site tag code list returned by the smart cloud platform, collect the surrounding site tag signal in real time and feed back to the smart cloud platform to receive the closest vehicle returned by the smart cloud platform.
  • the tag coding list is combined with the real-time collected site tag signal and the vehicle tag signal to assist the visually impaired person, and the car-guided terminal is controlled to perform a voice broadcast reminder.
  • the smart cloud platform includes a cloud control host, a bus information database, a cloud voice database, and a cloud map database
  • the smart phone is respectively connected with a cloud control host, a bus information database, a cloud voice database, and a cloud map database.
  • Wireless connections are respectively connected with a cloud control host, a bus information database, a cloud voice database, and a cloud map database.
  • the vehicle-mounted guide terminal includes an embedded processor, a first low-power Bluetooth communication module, a communication interface module, a power supply module, a power amplifier circuit, and an audio codec circuit, where the embedded processor respectively Connected with the first low-power Bluetooth communication module, the communication interface module, the power supply module, the power amplifier circuit, and the audio codec circuit, and the vehicle-mounted guide terminal is wirelessly connected to the smart phone through the first low-power Bluetooth communication module, the power amplifier The circuit is connected to the external speaker of the bus.
  • the vehicle tag and the site tag both use a low power Bluetooth tag
  • the low power Bluetooth tag includes a second low power Bluetooth communication module, a lithium battery, a tamper circuit,
  • the button module and the antenna, the second low-power Bluetooth communication module is respectively connected to the lithium battery, the tamper circuit, the button module and the antenna.
  • a roadside information collecting device for collecting information on the vehicle-mounted blind terminal is installed at a bus service station, a gas station, and/or a gas station.
  • the collection device comprises an embedded main processor, a data storage module, a power supply circuit, a third low-power Bluetooth communication module and a remote wireless communication module, wherein the embedded main processor and the data storage module, the power supply circuit, and the third low-power
  • the Bluetooth communication module is connected to the remote wireless communication module, and the roadside information collection device is wirelessly connected to the vehicle-mounted guide terminal through the third low-power Bluetooth communication module, and the roadside information collection device passes the remote wireless communication module and the smart cloud. Platform wireless connection.
  • the low power Bluetooth tag is packaged in a waterproof, dustproof industrial grade housing.
  • the public transportation information database is a cloud service-based public transportation vehicle data, bus line station data, bus station data, and bus operation dynamic data data collection, processing, and storage center, and the public transportation information database includes a public transportation Dynamic and static data, the bus dynamic data refers to bus inbound and outbound data, and the bus static data includes vehicle data, line site data, and station data;
  • the cloud voice database is a third-party cloud service-based voice data collection, voice synthesis, voice and semantic recognition collection, processing, and storage center, and the cloud voice database is used to collect text according to a user request of the smart phone.
  • the information is converted into speech, or the collected speech semantics is converted into text information and fed back to the smart phone;
  • the cloud map database is a third-party cloud service-based urban road data, terrain data, and point of interest data collection, processing, and storage center, and the cloud map database is configured to locate a user's current location and display the periphery according to the request of the smart phone. Roads, terrain, points of interest, and bus route.
  • the smart phone is also connected with a bone conduction earphone.
  • a method for assisting visually impaired persons in urban public transportation including:
  • the smart cloud platform After receiving the travel route sent by the smart phone, the smart cloud platform obtains all the route sites of the route and the corresponding site tag code list and feeds back to the smart phone;
  • the smart phone collects the surrounding site tag signals in real time and compares them with the site tag code list, so as to determine whether the collected site tag signals match the travel route, and when the matching is successful, the corresponding voice prompt information is sent (for example, “something” Stand up”), at the same time send the matching site label signal to the intelligent cloud platform and perform step S4;
  • the intelligent cloud platform acquires driving dynamic data of the public transportation vehicle corresponding to the travel route, generates corresponding voice prompt information and sends the corresponding voice prompt information to the smart phone for broadcast, and simultaneously pushes the closest vehicle label code list to the smart phone;
  • the smartphone collects the vehicle tag signal of the inbound bus vehicle in real time and matches the vehicle tag code list, and after the matching is successful, automatically plays the corresponding voice prompt information, and performs step S6;
  • the smart phone establishes a connection with the vehicle-mounted blind terminal on the public transportation vehicle, and then sends the travel line and the successfully matched vehicle label signal to the vehicle-mounted blind terminal;
  • the vehicle-guided blind terminal performs matching after receiving the data. If the matching is successful, the voice broadcast is used to guide the visually impaired person to get on the vehicle;
  • the smart phone collects the site tag signal of each station passing by the bus in real time, and matches the site tag code list corresponding to the travel route. If the match is successful, the corresponding voice prompt information is played, and at the same time, the travel route is judged to arrive. When the transfer station or destination station is played, the corresponding voice prompt information is played.
  • steps S7 and S8 are further included between the steps S7 and S8:
  • the smartphone collects the surrounding site tag signal and the vehicle tag signal in real time to determine whether the visually impaired person successfully enters the car and plays the corresponding voice prompt information.
  • the step S8 includes:
  • the smart phone collects the site tag signal of each station passing by the bus in real time, and matches the site tag code list corresponding to the travel route. If the match is successful, the corresponding voice prompt information is played;
  • step S1 is specifically:
  • the travel route of the visually impaired person is analyzed and sent to the intelligent cloud platform according to the common itinerary, the frequent sitting route or the temporary car route selected by the visually impaired person.
  • the smart cloud platform includes a cloud control host, a bus information database, a cloud voice database, and a cloud map database, and the step S2 is specifically:
  • the smart cloud platform After receiving the travel route sent by the smart phone, the smart cloud platform obtains all the route sites of the route and the corresponding site tag code list from the bus information database, and then feeds back to the smart phone.
  • step S4 is specifically:
  • the intelligent cloud platform combines the bus information database and the cloud map database to obtain the driving dynamic data of the public transportation vehicle corresponding to the travel route, and generates the corresponding voice prompt information in combination with the cloud voice database to be sent to the smart phone for broadcast, and simultaneously pushes the closest to the smart phone.
  • Vehicle tag code list
  • a city public transportation visually impaired passenger assistance system includes an intelligent cloud platform, a vehicle-mounted blind terminal, a smart phone, a vehicle tag for uniquely identifying a bus, and a unique identifier for a bus stop.
  • the site label and the roadside information collecting device for collecting information on the vehicle guide blind terminal, the vehicle guide blind terminal and the vehicle tag are all installed on the bus, and the site label and the roadside information collecting device are installed at the bus stop, the smart phone. They are wirelessly connected to the vehicle-guided terminal, the vehicle tag and the site tag, and the smart phone and the roadside information collection device are all wirelessly connected to the intelligent cloud platform.
  • Visually impaired people can use smart phones as an intermediary to interact with intelligent cloud platforms, vehicle-guided terminals, vehicle tags and site tags to perceive peripheral information, and combine convenient operation with simple program development settings to facilitate visually impaired users. Get the bus travel information and services you need.
  • the smart phone is also connected with a bone conduction earphone, and provides a voice transmission service for the visually impaired user by using the bone conduction earphone, and does not lose the environmental sound, and can simultaneously let the user guide the voice of the external speaker of the bus. It is convenient to catch the bus with the required line.
  • the roadside information collecting device can collect the information of the vehicle blind guiding terminal and send it to the intelligent cloud platform for analysis and discovery of the vehicle tag, the power consumption data of the site tag, the fault state, and the like.
  • the bone conduction earphone adopts (Bluetooth) bone conduction earphones of JAWBONE, aftershok, Panasonic, Jiebolang, DMZER/Pirates, Motorola, Bellshun, Nokia, Feixun, Patriot, Coolpad, etc. More than one.
  • Both the site tag and the vehicle tag have a unique code. Therefore, when the smartphone reads the site tag or the vehicle tag, the data stored in the smart cloud platform can identify the corresponding site or vehicle, thereby performing voice broadcast to the visually impaired user. Guide.
  • the intelligent cloud platform includes a cloud control host, a bus information database, a cloud voice database, and a cloud map database.
  • the smart phones are wirelessly connected with the cloud control host, the bus information database, the cloud voice database, and the cloud map database, and the roadside information collecting device and the bus information. Database wireless connection.
  • the bus information database is a data collection, processing and storage center for bus service data, bus route station data, bus station data, and bus operation dynamic data based on cloud services.
  • the database includes bus dynamics and static data, and bus dynamic data mainly refers to bus in and out.
  • the bus static information, bus dynamic information and bus travel planning information can be pushed according to the user request of the smart phone, and saved at the same time User data and user bus travel trajectory data.
  • the public transport information database can directly use the existing database.
  • the cloud voice database is a third-party cloud service-based voice data collection, voice synthesis, voice and semantic recognition collection, processing and storage center.
  • the database converts the collected text information into voice according to the user request of the smartphone, or The collected speech semantics are converted into textual information and fed back to the smartphone.
  • the cloud voice database is selected from one or more of a voice cloud database and a Google voice cloud database.
  • the cloud map database is a third-party cloud service-based city road data, terrain data, point of interest data collection, processing and storage center.
  • the database can locate the user's current location and display surrounding roads, terrain, and points of interest according to the request of the smartphone. And bus route.
  • the cloud map database selects one or more of a high-tech map cloud database, a Baidu map cloud database, and a Google map cloud database.
  • Smartphone with operating system for Android 4.3 or iOS Smartphones with 7.0 or above and one or more of the built-in screen reading software or third-party open source or commercial screen reading software such as Safeguard, Point, TB, Stars, Sunshine, and Yongde Screen Reading Software.
  • the vehicle guide blind terminal comprises an embedded processor, a first low power Bluetooth communication module, a communication interface module, a power supply module, a power amplifier circuit and an audio codec circuit, and the embedded processor respectively communicates with the first low power Bluetooth communication module
  • the interface module, the power supply module, the power amplifier circuit, and the audio codec circuit are connected, and the vehicle-mounted blind terminal is wirelessly connected to the smart phone and the roadside information collecting device through the first low-power Bluetooth communication module.
  • the power amplifier circuit is connected to an external speaker of a bus.
  • the first low power Bluetooth communication module is also wirelessly coupled to the vehicle tag and the site tag, respectively.
  • the first low-power Bluetooth module is wirelessly connected with the vehicle tag, mainly to obtain the information of the bus vehicle identified by the vehicle tag, and the vehicle-guided terminal is also bound to the bus, so that the vehicle data bound by the two is consistent.
  • the vehicle label is not detachable. It is issued on the car or on the platform to represent the car or the platform for life. If it is broken, the terminal is detachable and replaceable. Correspondence of vehicle tags. Through this mechanism to ensure data consistency, the blind mobile phone receives the vehicle tag information and then feeds back to the car-guided terminal host. The car-guided host uses this information to compare with the bus information that it is bound to. If the line is consistent, the line is broadcast. Avoid false announcements.
  • the vehicle-guided terminal is wirelessly connected with the vehicle tag and the station tag, and the connection log can be established.
  • the connection log information can be uploaded back to the bus information database of the intelligent cloud platform through the roadside information collecting device.
  • the vehicle-guided terminal is also used to collect vehicle tags or The power data of the site tag is uploaded to the bus information database through the roadside information collecting device. If it is below a certain threshold, a low battery alarm is issued to prompt the maintenance personnel to replace the tag.
  • the vehicle-mounted blind terminal is an offline device, and the roadside information collecting device is used as a smart means of closed-loop operation and maintenance.
  • a serial port or a remote communication module can be added to the vehicle-mounted blind terminal to directly connect with the bus information database to become an online device.
  • the vehicle-mounted blind terminal receives the message sent by the smart phone through the first low-power Bluetooth communication module, for example, a trigger signal, and after receiving the trigger signal, the external speaker can be driven to broadcast the bus running route through the voice to guide the visually impaired user to board the vehicle.
  • the Bluetooth communication chip used by the first low-power Bluetooth communication module is one or more of (ultra) low-power Bluetooth chips (Bluetooth 4.0 and above) of chip manufacturers such as Nordic, TI Texas Instruments, and CSR.
  • the vehicle-mounted guide blind terminal of the embodiment adopts an industrial grade design, is suitable for a vehicle complex environment, shockproof and anti-electromagnetic interference, and has the advantages of small volume, low power consumption, easy deployment, and high reliability.
  • the communication interface module of the vehicle-guided terminal includes a serial port and an RS485 interface.
  • the main function is to connect with other vehicle-mounted devices on the bus and complete data interaction.
  • 256Mbit FRAM is used, which is mainly used to store interactive data; there is also 64Mbit FLASH storage space, which is mainly used for storing audio data.
  • the program upgrade is mainly through the interface update on the board, and supports offline programming of the main program.
  • the smart phone includes a Bluetooth module and a radio frequency wireless communication module, which are part of the prior art, and are not described herein again.
  • the roadside information collection device includes an embedded main processor, a data storage module, a power supply circuit, a third low power Bluetooth communication module, and a remote wireless communication module, and the embedded main processor and the data storage module and the power supply circuit respectively
  • the third low-power Bluetooth communication module is connected with the remote wireless communication module
  • the roadside information collecting device is wirelessly connected with the vehicle-mounted blind terminal through the third low-power Bluetooth communication module
  • the roadside information collecting device passes the remote wireless communication module and the smart device.
  • Cloud platform wireless connection Specifically, the roadside information collecting device is wirelessly connected to the second low-power Bluetooth communication module of the vehicle-mounted blind terminal through the third low-power Bluetooth communication module.
  • the low-power Bluetooth tag includes a second low-power Bluetooth communication module, a lithium battery, a tamper circuit, a button module, and an antenna, and a second low-power Bluetooth.
  • the communication module is respectively connected to a lithium battery, a tamper circuit, a button module, and an antenna.
  • the button module is used to switch the working mode of the tag, and the tamper circuit is used for detecting the abnormal disassembly and destruction of the tag, and can be automatically detected by the inspection tool once it is abnormally disassembled or destroyed.
  • the antenna is used to communicate with an external Bluetooth device such as a smart phone, using 2.4G Sniffer antenna, the specific matching circuit is shown in Figure 9.
  • Vehicle Tags and Site Tags By periodically transmitting information containing vehicle codes or site codes, the smartphone can read and identify the corresponding vehicle or site in real time.
  • the first low-power Bluetooth communication module, the second low-power Bluetooth communication module and the third low-power Bluetooth communication module are all protocols running Bluetooth 4.0 and above, and have lower power consumption.
  • the low-power Bluetooth tag is housed in a waterproof, dust-proof, industrial-grade enclosure.
  • the outer casing is waterproof, dustproof, shockproof and anti-electromagnetic interference.
  • the low-power Bluetooth tag has the advantages of small size, low power consumption, easy installation and use, high reliability and anti-disassembly, and is suitable for various applications.
  • the embedded processor uses ST's 32-bit ARM embedded processor.
  • the embedded processor STM32 circuit schematic is shown in Figure 4.
  • the peripheral circuit includes ARM. 32-bit CortexTM M3 CPU core, from 256K to 512K bytes of Flash program memory, up to 64K bytes of SRAM, with 4 chip select static memory controllers, up to 11 timers and 13 communication interfaces for powerful performance and power consumption Low hardware, strong anti-interference, etc.
  • the hardware watchdog module SP706EN is added to the peripheral circuit.
  • the schematic diagram of the hardware watchdog circuit is shown in Figure 5.
  • the first low-power Bluetooth communication module selects Nordic's nRF51822, which is a multi-protocol Bluetooth low power / 2.4GHz Dedicated RF single-chip solution, including 256kB of on-chip flash and 16kB
  • the main function of the RAM is to receive the low-power Bluetooth tag information and the instructions issued by the visually impaired user through the Bluetooth module of the smart phone, and then send the received data or the user data carried by the instruction to the embedded processor main chip STM32. Called by the embedded guide control software main program.
  • the power amplifier circuit adopts a 10W industrial grade chip TDA2003, and its main function is to input and input the audio signal into the power amplifier circuit for amplification and playback.
  • the audio codec circuit adopts an industrial grade audio codec chip YX6100, and its main function is to convert the dynamic data sent by the embedded processor into an audio signal, and then the embedded processor can convert the converted audio signal into an audio signal.
  • the fixed audio data stored in the FLASH is sent to the power amplifier circuit for amplification and playback, and the line to which the inbound vehicle belongs is guided by the visually impaired user who is guided by the station to receive the vehicle.
  • the system deploys a blind guiding application system for integrated control on the cloud control host, and a blind guide APP for the visually impaired person is installed on the smart phone, and the guide blind APP can be in the voice reading mode. It is convenient for the visually impaired to operate and use.
  • the assisting and passengering system of the present embodiment can provide and provide added value for ordinary travellers, bus transport enterprises, bus station management units, and bus industry authorities while providing services for the visually impaired.
  • Used for ordinary travellers and providing added value is a guide to blind apps that can also be installed on regular travellers' smartphones (operating system for Android) 4.3 or iOS 7.0 and above) provide public travel information services such as bus information inquiry, line collection, smart reminder, and road conditions for ordinary travelers.
  • the use and supply of additional value for bus transport enterprises means that vehicle labels and site labels can be used for public transportation.
  • the company's fine management of the bus in the accurate reporting, parking, maintenance, maintenance, safety inspection and other aspects; for the bus station management unit to use and provide added value means that the site label can be used for the bus station management unit Refined management of site inspection management and facility maintenance; the use and provision of added value for the bus industry authorities means that the hardware facilities of the system can be used to strengthen supervision of bus terminals.
  • bus information data and the intelligent bus system data are always synchronized and consistent, which can be well adapted to the actual situation of frequent dynamic changes of bus lines and stations, and is always a visually impaired user. Provide correct bus travel guidance;
  • the vehicle-guided terminal, vehicle label and station label are extremely small in size, extremely low in power consumption, and extremely Easy to deploy, extremely easy to maintain and highly reliable equipment, while avoiding the high cost required for custom development of dedicated handheld terminals, so the cost of system construction and maintenance is greatly reduced, and it is easy to promote and use;
  • the system adopts low-power Bluetooth (Bluetooth 4.0 and above) technology, it greatly expands the system's audience, not only provides the bus travel guidance service for visually impaired users, but also can travel for more ordinary buses.
  • Provide public transportation information services such as bus information inquiry, line collection, smart reminder, road ahead, etc.
  • the system is an open system, which can provide various additional services and values for visually impaired users, ordinary travellers, bus transport enterprises, bus station management units, and bus industry authorities, and build, share and share together. Maintenance and popularity is a concrete manifestation of the concept of “health and disability” in the field of public transport, so it has a strong vitality;
  • One or more bus routes selected in the “Everywhere route” may also be input into the temporary bus route, input the proposed bus route through the guide blind APP and select the uplink or downlink line, or pass a similar “peripheral line search” function button. Search for nearby lines and select the line you want to take from the list of lines.
  • the smart cloud platform receives the travel route sent by the smart phone through the cloud control host, and obtains all the route sites of the route and the corresponding site tag code list from the bus information database, and then feeds back to the smart phone;
  • the smart phone collects the surrounding site tag signals in real time and compares them with the site tag code list, so as to determine whether the collected site tag signals match the travel route, and when the matching is successful, the corresponding voice prompt information is sent, and the matching will be matched.
  • the site label signal is sent to the intelligent cloud platform and step S4 is performed;
  • the site tag signal is a signal containing the site tag code of the site tag and the transmitted signal strength.
  • the intelligent cloud platform acquires driving dynamic data of the public transportation vehicle corresponding to the travel route, generates corresponding voice prompt information and sends the corresponding voice prompt information to the smart phone for broadcast, and simultaneously pushes the closest vehicle label code list to the smart phone;
  • the smartphone collects the vehicle tag signal of the inbound bus vehicle in real time and matches the vehicle tag code list, and after the matching is successful, automatically plays the corresponding voice prompt information, and performs step S6;
  • the vehicle tag signal is a signal including the vehicle tag code of the vehicle tag and the transmitted signal strength.
  • the smart phone establishes a connection with the vehicle-mounted blind terminal on the public transportation vehicle, and then sends the travel line and the successfully matched vehicle label signal to the vehicle-mounted blind terminal;
  • the vehicle-guided blind terminal performs matching after receiving the data. If the matching is successful, the voice broadcast is used to guide the visually impaired person to get on the vehicle;
  • the smart phone collects the surrounding site tag signal and the vehicle tag signal in real time to determine whether the visually impaired person successfully enters the car and plays the corresponding voice prompt information; the smart phone according to the collected site tag signal and the signal strength in the vehicle tag signal and Coding to comprehensively determine whether the user is on the train and whether it is on the right vehicle.
  • the vehicle label is encoded and cached.
  • the local database and the cloud bus information database match the vehicle tag code to see if the line corresponding to the vehicle tag code matches the bus route selected by the user. If the match is determined, the visually impaired person successfully enters the car, and the guide blind app automatically prompts the user to voice.
  • the smart phone collects the site tag signal of each station passing by the bus in real time, and matches the site tag code list corresponding to the travel route. If the match is successful, the corresponding voice prompt information is played, and at the same time, the travel route is judged to arrive. When the transfer station or destination station is played, the corresponding voice prompt information is played to remind the visually impaired person to transfer or reach the destination. This method can also be applied to assisted multiplication when transferring.
  • the embodiment further includes the following steps:
  • the vehicle guide blind terminal collects the vehicle label information of the corresponding public transportation vehicle and the station label signal around the vehicle guide blind terminal in real time to generate a connection log, and sends the connection log to the roadside information collection device;
  • the vehicle label signal includes the vehicle label a vehicle tag code, a signal that transmits a signal strength;
  • a site tag signal is a signal including a site tag code of the site tag and a transmitted signal strength;
  • the roadside information collecting device uploads the connection log to the public transportation information database of the intelligent cloud platform;
  • the bus information database analyzes the connection log to determine the vehicle tag or site tag that has failed or low battery, and issues an alarm.
  • This embodiment is a more detailed technical solution of the second embodiment, and includes the following steps:
  • Step 1 The visually impaired person enters the travel route through the guide blind APP.
  • the smart phone responds to the operation of the visually impaired person, obtains the travel route of the visually impaired person, and sends it to the intelligent cloud platform, including the following three methods:
  • the visually impaired person collects the “frequently sitting line” through the “line collection” function in the guide blind app (the line carries the uplink or downlink direction without the departure station and the destination station). After the collection, the line is saved to the guide application client.
  • the “Everywhere Line” collection list it is convenient for users to directly select in the future to avoid repeated input; when the visually impaired person travels, one or more bus lines can be selected from the “Frequently Sitting Line” of the guide application APP;
  • the visually impaired user can input the proposed bus route from the guide car "temporary car” and select the uplink or downlink, or Use the "Peripheral Line Search” function button to search for nearby lines and select the line you want to take from the line list.
  • the travel route selection is clearly classified according to the actual situation, and the process is simple and simple, and can be operated by one button, automatic reminder and intelligent boot.
  • Step 2 After receiving the line selected by the user, the guidance application system of the cloud control host feeds back all the route stations and the corresponding site tag coding list from the bus information database to the guide application client, and caches the client. End local database;
  • Step 3 Since the site tag keeps broadcasting the site identity information (site tag code), the visually impaired person arrives at any site near the selected line (usually within 10 meters, the distance can be adjusted), and the guide app passes the mobile phone Bluetooth.
  • the interface automatically receives the station label broadcast signal (site label code), and the guide application compares the received station label code with the site tag code list corresponding to the locally cached line, if in the locally cached site tag code list, Guided APP automatic voice reminder (APP voice reminder or enrollment is a guide blind APP through the TTS engine remotely call the voice synthesis interface to synthesize the local text information into the local voice, the same below) a visually impaired person has arrived, guide blind
  • the application system queries the public transportation information database for the latest development of the running of the line vehicle, and informs the user that the bus of the latest shift of the line has several stops from the user's current station and how much time is expected.
  • the nearest 3 passengers (the number can be adjusted, the same below) bus code feedback
  • the site tag code received by the guide application is not in the local line site tag code list, the APP does not respond;
  • Step 4 During the waiting process of the visually impaired person, when the bus of the latest shift is still 2 stations away from the current station of the user (the quantity can be adjusted, the same below), the guide blind APP starts the voice prediction vehicle to enter the station;
  • Step 5 Since the vehicle tag does not stop broadcasting the vehicle identity information (vehicle tag code), when the bus of the taken line enters the station, the guide tag APP automatically receives the vehicle tag broadcast signal (vehicle tag code) through the Bluetooth interface of the mobile phone.
  • the blind APP compares the received vehicle tag code with the locally cached vehicle tag code list. If it is in the locally cached vehicle tag code list, the guide app automatically prompts the visually impaired person to enter the bus of a certain line, and simultaneously
  • the user's guide cell phone is connected to the car guide blind terminal via Bluetooth, and the guide cell phone sends the line and vehicle tag code to the car guide blind terminal.
  • the car guide blind terminal receives the information and then matches, if it can match, the car guide blind
  • the terminal controls the vehicle external speaker to broadcast a bus of a certain line, otherwise it will not respond.
  • the visually impaired person can control the on-board blind terminal and the horn broadcast line voice on-demand through the “replay” function button on the guide application, and the visually impaired person can get on the train according to the line sent by the car horn until the vehicle is successfully launched;
  • Step 6 When the visually impaired person gets on the bus, the guide blind app comprehensively judges whether the user gets on the vehicle and whether it is on the vehicle according to the received site label, the vehicle label broadcast signal and the signal strength state, and continues to receive stably.
  • the station tag code of the departure station and the like continuously and steadily receives the vehicle tag code of the same car. It can be considered that the user has already taken the car and matches the vehicle tag code cached in the local database and the cloud bus information database to see the vehicle. Whether the line corresponding to the tag code matches the bus line selected by the user. If it matches, the guide app will automatically remind the user to successfully board the car and rest assured to ride the car. Otherwise, the driver may be prompted to go on the wrong car and prompt the user to the driver and others.
  • the passenger or customer service center confirms and asks for help.
  • Step 7 When the visually impaired person travels to the destination on the bus of the selected line and passes through each station on the line, the guide application will automatically receive the broadcast signal of the site label of the route, and the guide apple will receive the broadcast signal.
  • the site tag code matches the local line site tag code list cached. If included in the local line site tag code list, the guide app automatically reminds the visually impaired that a station has arrived until the visually impaired person gets off.
  • Step 8 When the user's vehicle arrives at the transfer station or the last station of the destination station (the number of pre-alert stations can be adjusted), the correct prediction is about to be predicted by matching the received station label code with the locally cached station label code list. Reaching the transfer station or the destination station, reminding the user to prepare for the transfer or getting off the vehicle; when the user arrives at the transfer station, the received station tag code matches the locally cached transfer site tag code.
  • the guide blind APP automatically reminds the user that “the transfer station has arrived, please get off and transfer to other lines”; when the user arrives at the destination station, the received station tag code matches the locally cached destination site tag code.
  • the guide blind app automatically reminds the user that "the destination station has arrived, please get off.”

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Abstract

一种城市公共交通视障人士助乘系统及方法，该系统包括智能云平台、车载导盲终端、智能手机、用于对公交车辆进行唯一标识的车辆标签以及用于对公交站点进行唯一标识的站点标签，车载导盲终端和车辆标签均安装在公交车辆上，站点标签安装在公交站点，智能手机分别与车载导盲终端、车辆标签和站点标签无线连接，智能手机与智能云平台无线连接。该城市公共交通视障人士助乘系统及方法可采用智能手机读取并播报公交车辆及站点的信息，结合智能云平台存储的公交实时数据，通过车载导盲终端进行公交信息播报，引导视障人士乘坐公交车辆，智能化程度高，投入成本低，数据稳定性好且可靠性高，可广泛应用于公交助乘行业中。

Description

一种城市公共交通视障人士助乘系统及方法
技术领域
本发明涉及信息导航技术领域，特别是一种城市公共交通视障人士助乘系统及方法。
背景技术
目前全国视障人士数量700多万人，占全世界视障人士总数的18％，另外，全国还有约1200多万弱视人群，两者总和约占全国总人口的1.5％。这部分人群受经济条件所限，同时因为公交线路相对密集，公交出行相对经济实惠，大部分视障人士首选公交出行，但是又受限于视力，视障人群的公交出行存在诸多不便。视障人群需要专人陪同和借助辅助工具例如导盲杖、导盲犬等才能出行，但是受经济和政策等因素影响，导盲犬在国内的使用率极低。
在导盲信息技术和信息系统方面，市面上常见的技术是利用超声波进行测距和障碍物规避、利用微波感知车辆或站台、利用红外进行短距离通信、定制专用手持终端控制车辆播报线路语音等，大部分信息系统都是独立运行的，无法实现智能化助乘。而且，这些方式具有以下缺点：1、因为实际运行的公交车辆和公交线路是动态变化的，变化相当频繁，利用超声波测距的方式无法适应动态变化的实际情况，容易因为数据不一致导致错误的引导。2、微波感知装置作为专用设备，一方面经济成本高、施工维护代价大、需要市电供电，另一方面可靠性不高。3、红外通信及定制专用手持终端价格高，而且推广使用难度大，随着智能手机终端的发展应用，这种方式已经逐渐被淘汰。4、现有的助乘系统大部分为封闭的系统，只能为视障用户提供部分服务，无法扩展应用于普通公交出行者信息服务、公交行业管理、公交企业运营等领域，受众面较窄，运维成本高。总的来说，目前的助乘方案具有智能化程度低、成本高、数据稳定性差、可靠性低、可扩展性差、可持续运行能力差等缺点。
发明内容
为了解决上述的技术问题，本发明的目的是提供一种城市公共交通视障人士助乘系统，本发明的另一目的是提供一种城市公共交通视障人士助乘方法。
本发明解决上述技术问题所采用的技术方案是：
一种城市公共交通视障人士助乘系统，包括智能云平台、车载导盲终端、智能手机、用于对公交车辆进行唯一标识的车辆标签以及用于对公交站点进行唯一标识的站点标签，所述车载导盲终端和车辆标签均安装在公交车辆上，所述站点标签安装在公交站点，所述智能手机分别与车载导盲终端、车辆标签和站点标签无线连接，所述智能手机与智能云平台无线连接；
所述智能云平台用于接收智能手机发送的出行路线后向智能手机发送该线路的站点标签编码列表，并根据智能手机实时采集的站点标签信号，向智能手机推送最接近的车辆标签编码列表；
所述智能手机用于发送出行线路到智能云平台并存储智能云平台返回的站点标签编码列表后，实时采集周围的站点标签信号并反馈到智能云平台后接收智能云平台返回的最接近的车辆标签编码列表，进而结合实时采集的站点标签信号和车辆标签信号对视障人士进行助乘，并控制车载导盲终端进行语音播报提醒。
进一步，所述智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，所述智能手机分别与云端控制主机、公交信息数据库、云端语音数据库和云端地图数据库无线连接。
进一步，所述车载导盲终端包括嵌入式处理器、第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路，所述嵌入式处理器分别与第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路连接，所述车载导盲终端通过第一低功耗蓝牙通信模块与智能手机无线连接，所述功放电路与公交车辆的外放喇叭连接。
进一步，所述车辆标签和站点标签均采用低功耗蓝牙标签，所述低功耗蓝牙标签包括第二低功耗蓝牙通信模块、锂电池、防拆电路、按键模块以及天线，所述第二低功耗蓝牙通信模块分别与锂电池、防拆电路、按键模块以及天线连接。
根据权利要求4所述的一种城市公共交通视障人士助乘系统，其特征在于，所述低功耗蓝牙标签采用防水、防尘的外壳封装。
进一步，还包括安装在公交维修站、加气站和/或加油站的用于对车载导盲终端进行信息采集的路侧信息采集装置，所述路侧信息采集装置包括嵌入式主处理器、数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块，所述嵌入式主处理器分别与数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块连接，所述路侧信息采集装置通过第三低功耗蓝牙通信模块与车载导盲终端无线连接，所述路侧信息采集装置通过远程无线通信模块与智能云平台无线连接。
进一步，所述公交信息数据库为基于云服务的公交车辆数据、公交线路站点数据、公交站台数据、公交运行动态数据的数据收集、处理与存储中心，所述公交信息数据库包括公交动态和静态数据，所述公交动态数据指公交进出站数据，所述公交静态数据包括车辆数据、线路站点数据和站台数据；
所述云端语音数据库为第三方的基于云服务的语音数据采集、语音合成、语音及语义识别的采集、处理和存储中心，所述云端语音数据库用于根据智能手机的用户请求，将采集的文字信息转换成语音，或者将采集的语音语义转换成文字信息，并反馈回智能手机；
所述云端地图数据库为第三方的基于云服务的城市道路数据、地形数据、兴趣点数据的采集、处理与存储中心，所述云端地图数据库用于根据智能手机的请求定位用户当前位置并显示周边道路、地形、兴趣点及公交线路路径。
进一步，所述智能手机还连接有骨传导耳机。
本发明解决上述技术问题所采用的技术方案是：
一种城市公共交通视障人士助乘方法，其特征在于，包括：
S1、通过智能手机获取视障人士的出行路线，并发送到智能云平台；
S2、智能云平台接收智能手机发送的出行路线后，获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机；
S3、智能手机实时采集周围的站点标签信号并与站点标签编码列表进行比对，进而判断采集的站点标签信号是否与出行路线匹配，并在匹配成功时发出对应的语音提示信息，同时将匹配的站点标签信号发送到智能云平台并执行步骤S4；
S4、智能云平台获取与出行线路对应的公交车辆的行驶动态数据，生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表；
S5、智能手机实时采集进站公交车辆的车辆标签信号并与车辆标签编码列表进行匹配，并在匹配成功后，自动播放对应的语音提示信息，并执行步骤S6；
S6、智能手机与公交车辆上的车载导盲终端建立连接，进而将出行线路及匹配成功的车辆标签信号发送到车载导盲终端；
S7、车载导盲终端接收数据后进行匹配，若匹配成功，则语音播报用于引导视障人士上车的提示信息；
S8、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息，同时在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。
进一步，所述步骤S7与S8之间还包括以下步骤：
智能手机实时采集周围的站点标签信号和车辆标签信号，进而判断视障人士是否成功上车，并播放相应的语音提示信息。
进一步所述步骤S1，其具体为：
通过智能手机响应于视障人士的操作，根据视障人士选择的常用行程、常坐路线或临时坐车线路，解析获得视障人士的出行路线，并发送到智能云平台。
进一步，所述智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，所述步骤S2，其具体为：
智能云平台通过云端控制主机接收智能手机发送的出行路线后，从公交信息数据库获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机。
进一步，所述步骤S4，其具体为：
智能云平台结合公交信息数据库和云端地图数据库获取与出行线路对应的公交车辆的行驶动态数据，并结合云端语音数据库生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表。
进一步，所述步骤S8，包括：
S81、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息；
S82、在判断到达出行线路的换乘站的上一站或目的站的上一站时，播放对应的语音提示信息；
S83、在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。
本发明的有益效果是：本发明的一种城市公共交通视障人士助乘系统，通过智能云平台接收智能手机发送的出行路线后向智能手机发送该线路的站点标签编码列表，并根据智能手机实时采集的站点标签信号，向智能手机推送最接近的车辆标签编码列表；以及通过智能手机用于发送出行线路到智能云平台并存储智能云平台返回的站点标签编码列表后，实时采集周围的站点标签信号并反馈到智能云平台后接收智能云平台返回的最接近的车辆标签编码列表，进而结合实时采集的站点标签信号和车辆标签信号对视障人士进行助乘，并控制车载导盲终端进行语音播报提醒。本发明使得视障人士可采用智能手机读取并播报公交车辆及站点的信息，结合智能云平台存储的公交实时数据，通过车载导盲终端进行公交信息播报，引导视障人士乘坐公交车辆，智能化程度高，投入成本低，数据稳定性好且可靠性高。
本发明的另一有益效果是：本发明的一种城市公共交通视障人士助乘方法，包括：通过智能手机获取视障人士的出行路线，并发送到智能云平台；智能云平台获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机；智能手机实时采集周围的站点标签信号并与站点标签编码列表进行比对，进而判断采集的站点标签信号是否与出行路线匹配，并在匹配成功时发出对应的语音提示信息，同时将匹配的站点标签信号发送到智能云平台；智能云平台获取与出行线路对应的公交车辆的行驶动态数据，向智能手机推送最接近的车辆标签编码列表；智能手机实时采集进站公交车辆的车辆标签信号并与车辆标签编码列表进行匹配；智能手机与公交车辆上的车载导盲终端建立连接，进而将出行线路及匹配成功的车辆标签信号发送到车载导盲终端；车载导盲终端接收数据后进行匹配，若匹配成功，则语音播报用于引导视障人士上车的提示信息；智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息，同时在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。本方法可采用智能手机读取并播报公交车辆及站点的信息，结合智能云平台存储的公交实时数据，通过车载导盲终端进行公交信息播报，引导视障人士乘坐公交车辆，智能化程度高，投入成本低，数据稳定性好且可靠性高。
附图说明
下面结合附图和实施例对本发明作进一步说明。
图1是本发明的城市公共交通视障人士助乘系统的第一结构框图；
图2是本发明的城市公共交通视障人士助乘系统的第二结构框图；
图3是本发明的城市公共交通视障人士助乘系统的低功耗蓝牙标签的结构框图；
图4是本发明的城市公共交通视障人士助乘系统的车载导盲终端的嵌入式处理器的电路原理图；
图5是本发明的城市公共交通视障人士助乘系统的车载导盲终端的嵌入式处理器的硬件看门狗电路原理图；
图6是本发明的城市公共交通视障人士助乘系统的车载导盲终端的嵌入式处理器的电路原理图；
图7是本发明的城市公共交通视障人士助乘系统的车载导盲终端的功放电路的电路原理图；
图8是本发明的城市公共交通视障人士助乘系统的车载导盲终端的音频编解码电路的电路原理图；
图9是图3中的天线的匹配电路图。
具体实施方式
参照图1，本发明提供了一种城市公共交通视障人士助乘系统，包括智能云平台、车载导盲终端、智能手机、用于对公交车辆进行唯一标识的车辆标签以及用于对公交站点进行唯一标识的站点标签，所述车载导盲终端和车辆标签均安装在公交车辆上，所述站点标签安装在公交站点，所述智能手机分别与车载导盲终端、车辆标签和站点标签无线连接，所述智能手机与智能云平台无线连接；
所述智能云平台用于接收智能手机发送的出行路线后向智能手机发送该线路的站点标签编码列表，并根据智能手机实时采集的站点标签信号，向智能手机推送最接近的车辆标签编码列表；
所述智能手机用于发送出行线路到智能云平台并存储智能云平台返回的站点标签编码列表后，实时采集周围的站点标签信号并反馈到智能云平台后接收智能云平台返回的最接近的车辆标签编码列表，进而结合实时采集的站点标签信号和车辆标签信号对视障人士进行助乘，并控制车载导盲终端进行语音播报提醒。
进一步作为优选的实施方式，所述智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，所述智能手机分别与云端控制主机、公交信息数据库、云端语音数据库和云端地图数据库无线连接。
进一步作为优选的实施方式，所述车载导盲终端包括嵌入式处理器、第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路，所述嵌入式处理器分别与第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路连接，所述车载导盲终端通过第一低功耗蓝牙通信模块与智能手机无线连接，所述功放电路与公交车辆的外放喇叭连接。
进一步作为优选的实施方式，参照图3，所述车辆标签和站点标签均采用低功耗蓝牙标签，所述低功耗蓝牙标签包括第二低功耗蓝牙通信模块、锂电池、防拆电路、按键模块以及天线，所述第二低功耗蓝牙通信模块分别与锂电池、防拆电路、按键模块以及天线连接。
进一步作为优选的实施方式，还包括安装在公交维修站、加气站和/或加油站的用于对车载导盲终端进行信息采集的路侧信息采集装置，参照图2，所述路侧信息采集装置包括嵌入式主处理器、数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块，所述嵌入式主处理器分别与数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块连接，所述路侧信息采集装置通过第三低功耗蓝牙通信模块与车载导盲终端无线连接，所述路侧信息采集装置通过远程无线通信模块与智能云平台无线连接。
进一步作为优选的实施方式，所述低功耗蓝牙标签采用防水、防尘的工业级外壳进行封装。
进一步作为优选的实施方式，所述公交信息数据库为基于云服务的公交车辆数据、公交线路站点数据、公交站台数据、公交运行动态数据的数据收集、处理与存储中心，所述公交信息数据库包括公交动态和静态数据，所述公交动态数据指公交进出站数据，所述公交静态数据包括车辆数据、线路站点数据和站台数据；
所述云端语音数据库为第三方的基于云服务的语音数据采集、语音合成、语音及语义识别的采集、处理和存储中心，所述云端语音数据库用于根据智能手机的用户请求，将采集的文字信息转换成语音，或者将采集的语音语义转换成文字信息，并反馈回智能手机；
所述云端地图数据库为第三方的基于云服务的城市道路数据、地形数据、兴趣点数据的采集、处理与存储中心，所述云端地图数据库用于根据智能手机的请求定位用户当前位置并显示周边道路、地形、兴趣点及公交线路路径。
进一步作为优选的实施方式，所述智能手机还连接有骨传导耳机。
本发明解决上述技术问题所采用的另一技术方案是：
一种城市公共交通视障人士助乘方法，包括：
S1、通过智能手机获取视障人士的出行路线，并发送到智能云平台；
S2、智能云平台接收智能手机发送的出行路线后，获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机；
S3、智能手机实时采集周围的站点标签信号并与站点标签编码列表进行比对，进而判断采集的站点标签信号是否与出行路线匹配，并在匹配成功时发出对应的语音提示信息（例如“某某站到了”），同时将匹配的站点标签信号发送到智能云平台并执行步骤S4；
S4、智能云平台获取与出行线路对应的公交车辆的行驶动态数据，生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表；
S5、智能手机实时采集进站公交车辆的车辆标签信号并与车辆标签编码列表进行匹配，并在匹配成功后，自动播放对应的语音提示信息，并执行步骤S6；
S6、智能手机与公交车辆上的车载导盲终端建立连接，进而将出行线路及匹配成功的车辆标签信号发送到车载导盲终端；
S7、车载导盲终端接收数据后进行匹配，若匹配成功，则语音播报用于引导视障人士上车的提示信息；
S8、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息，同时在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。
进一步作为优选的实施方式，所述步骤S7与S8之间还包括以下步骤：
智能手机实时采集周围的站点标签信号和车辆标签信号，进而判断视障人士是否成功上车，并播放相应的语音提示信息。
进一步作为优选的实施方式，所述步骤S8，包括：
S81、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息；
S82、在判断到达出行线路的换乘站的上一站或目的站的上一站时，播放对应的语音提示信息；通过本方式可以提前提醒视障人士准备换乘或下车；
S83、在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。
进一步作为优选的实施方式，所述步骤S1，其具体为：
通过智能手机响应于视障人士的操作，根据视障人士选择的常用行程、常坐路线或临时坐车线路，解析获得视障人士的出行路线，并发送到智能云平台。
进一步作为优选的实施方式，所述智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，所述步骤S2，其具体为：
智能云平台通过云端控制主机接收智能手机发送的出行路线后，从公交信息数据库获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机。
进一步作为优选的实施方式，所述步骤S4，其具体为：
智能云平台结合公交信息数据库和云端地图数据库获取与出行线路对应的公交车辆的行驶动态数据，并结合云端语音数据库生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表。
以下结合具体实施例对本发明做详细说明。
实施例一
参照图1，一种城市公共交通视障人士助乘系统，包括智能云平台、车载导盲终端、智能手机、用于对公交车辆进行唯一标识的车辆标签、用于对公交站点进行唯一标识的站点标签以及用于对车载导盲终端进行信息采集的路侧信息采集装置，车载导盲终端和车辆标签均安装在公交车辆上，站点标签和路侧信息采集装置均安装在公交站点，智能手机分别与车载导盲终端、车辆标签和站点标签无线连接，智能手机和路侧信息采集装置均与智能云平台无线连接。视障人士可以以智能手机为中介，与智能云平台、车载导盲终端、车辆标签和站点标签进行信息交互，感知周边信息，结合简单的程序开发设置对应的便捷操作，则可方便视障用户获取所需的公交出行信息和服务。本实施例中，智能手机还连接有骨传导耳机，通过采用骨传导耳机为视障用户提供语音传递服务，而且不会丢失环境声音，可以同时让用户在公交车外置喇叭语音的引导下，方便地搭上所需线路的公交车。路侧信息采集装置可以采集车载导盲终端的信息并发送到智能云平台进行分析发现车辆标签、站点标签的耗电数据、故障状态等。
优选的，骨传导耳机采用JAWBONE、aftershok、松下、捷波朗、DMZER/盗梦者、摩托罗拉、贝尔顺、诺基亚、飞讯腾、爱国者、酷派等厂商的（蓝牙）骨传导耳机一种或一种以上。
站点标签和车辆标签都有唯一的编码，因此，智能手机读取到站点标签或车辆标签时，结合智能云平台存储的数据可以识别出对应的站点或车辆，从而进行语音播报，对视障用户进行引导。
智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，智能手机分别与云端控制主机、公交信息数据库、云端语音数据库和云端地图数据库无线连接，路侧信息采集装置与公交信息数据库无线连接。
公交信息数据库为基于云服务的公交车辆数据、公交线路站点数据、公交站台数据、公交运行动态数据的数据收集、处理与存储中心，该数据库包括公交动态和静态数据，公交动态数据主要指公交进出站（报站）数据，公交静态数据包括车辆数据、线路站点数据和站台数据等，运行该数据库后，可以根据智能手机的用户请求推送公交静态信息、公交动态信息和公交出行规划信息，同时保存用户数据和用户公交出行轨迹数据。公交信息数据库可直接选用已有的数据库。
云端语音数据库为第三方的基于云服务的语音数据采集、语音合成、语音及语义识别的采集、处理和存储中心，该数据库根据智能手机的用户请求，将采集的文字信息转换成语音，或者将采集的语音语义转换成文字信息，并反馈回智能手机。作为本发明的一种优选，所述的云端语音数据库选用讯飞语音云数据库和谷歌语音云数据库的一种或一种以上。
云端地图数据库为第三方的基于云服务的城市道路数据、地形数据、兴趣点数据的采集、处理与存储中心，该数据库可以根据智能手机的请求定位用户当前位置并显示周边道路、地形、兴趣点及公交线路路径。作为本发明的一种优选，所述的云端地图数据库选用高德地图云数据库、百度地图云数据库和谷歌地图云数据库中的一种或一种以上。
智能手机采用操作系统为Android 4.3或iOS 7.0及以上的智能手机，并自带读屏软件或安装第三方开源或商用读屏软件如保意、点明、TB、星目、阳光、永德读屏软件的一种及一种以上。
车载导盲终端包括嵌入式处理器、第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路，嵌入式处理器分别与第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路连接，车载导盲终端通过第一低功耗蓝牙通信模块分别与智能手机和路侧信息采集装置无线连接。所述功放电路与公交车辆的外放喇叭连接。第一低功耗蓝牙通信模块还分别与车辆标签和站点标签无线连接。
第一低功耗蓝牙模块与车辆标签无线连接，主要是获取车辆标签所标识的公交车辆信息，进而车载导盲终端也跟该公交车辆绑定，从而使两者绑定的车辆数据一致（注：车辆标签是不可拆卸的，发行好贴在车上或站台上就终身代表这台车或这个站台，拆了就坏了，终端主机是可拆卸、可更换的），建立车载导盲终端与车辆标签的对应关系。通过这个机制来确保数据的一致性，盲人手机收到车辆标签信息再反馈给车载导盲终端主机，车载导盲主机拿这个信息跟自己绑定的公交车辆信息比较，如果一致就播报该线路，避免错误播报。另外，车载导盲终端与车辆标签以及站台标签无线连接，可以建立连接日志，回到公交总站或维修站后，可以把连接日志信息通过路侧信息采集装置上传回智能云平台的公交信息数据库，公交信息数据库经过分析就会自动发现哪些车辆标签或站点标签故障了（没有连接日志就很可能是故障了，提示维护人员去维护或更换）；最后，车载导盲终端还用于采集车辆标签或站点标签的电量数据，并通过路侧信息采集装置上传回公交信息数据库，如果低于一定阀值，就发出低电量报警，提示维护人员去更换标签。这种方案中，车载导盲终端是离线的设备，路侧信息采集装置是作为一种闭环运维的智能手段来使用。作为进一步改进，可以对车载导盲终端增加串口或远程通信模块使其直接与公交信息数据库连接，成为在线设备。
车载导盲终端通过第一低功耗蓝牙通信模块接收智能手机发送的消息，例如触发信号，接收到触发信号后，可驱动外放喇叭通过语音播报公交车运行路线，引导视障用户上车。第一低功耗蓝牙通信模块采用的蓝牙通信芯片为Nordic、TI德州仪器、CSR等芯片厂商的（超）低功耗蓝牙芯片（蓝牙4.0及以上）的一种及一种以上。本实施例的车载导盲终端采用工业级设计，适应车载复杂环境，防震和抗电磁干扰，具有小体积、低功耗、易部署、高可靠的优点。
车载导盲终端的通信接口模块包括一个串口和一个RS485接口，主要功能是与公交车上其他车载设备连接并完成数据交互。在存储空间上，采取256Mbit的FRAM，主要用于存储交互数据；还有64Mbit的FLASH存储空间，主要用于存储音频数据，程序升级主要通过板载上的接口更新，支持离线烧录主程序。
显然的，智能手机包括蓝牙模块和射频无线通信模块，这部分属于现有技术的内容，本申请不再赘述。
参照图2，路侧信息采集装置包括嵌入式主处理器、数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块，嵌入式主处理器分别与数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块连接，路侧信息采集装置通过第三低功耗蓝牙通信模块与车载导盲终端无线连接，路侧信息采集装置通过远程无线通信模块与智能云平台无线连接。具体的，路侧信息采集装置通过第三低功耗蓝牙通信模块与车载导盲终端的第二低功耗蓝牙通信模块无线连接。
车辆标签和站点标签均采用低功耗蓝牙标签，参照图3，低功耗蓝牙标签包括第二低功耗蓝牙通信模块、锂电池、防拆电路、按键模块以及天线，第二低功耗蓝牙通信模块分别与锂电池、防拆电路、按键模块以及天线连接。按键模块用于切换标签工作模式，防拆电路用于检测标签的非正常拆卸、破坏，一旦非正常拆卸或破坏可采用巡检工具自动检测出来。天线用于与外部蓝牙设备例如智能手机进行通信，采用2.4G sniffer天线，具体匹配电路如图9所示。车辆标签和站点标签通过定时发射包含车辆编码或站点编码的信息，智能手机可以实时读取并识别到对应的车辆或站点。
第一低功耗蓝牙通信模块、第二低功耗蓝牙通信模块和第三低功耗蓝牙通信模块均是运行蓝牙4.0及以上版本的协议，更低功耗。
低功耗蓝牙标签采用防水、防尘的工业级外壳封装。外壳具有防水、防尘、防震和抗电磁干扰的作用，低功耗蓝牙标签具有体积小、功耗低、便于安装使用、可靠性高、防拆卸的优点，适用于各种应用场合。
嵌入式处理器采用ST公司的32位ARM嵌入式处理器，嵌入式处理器STM32电路原理图如图4所示，其外围电路包括ARM 32位的Cortex™M3 CPU内核，从256K至512K字节的闪存程序存储器，高达64K字节的SRAM，带4个片选的静态存储器控制器，多达11个定时器和13个通信接口，具有性能强劲、功耗低、抗干扰性强等特点，为了增强嵌入式系统的可靠性、稳定性，还在外围电路中增加了硬件看门狗模块SP706EN，硬件看门狗电路原理图如图5所示。
优选的，参照图6所示，第一低功耗蓝牙通信模块选用Nordic公司的nRF51822，nRF51822是一款多协议蓝牙低功耗/ 2.4GHz 专用 RF的单芯片解决方案，包括256kB 片上闪存和 16kB RAM，其主要功能是完成接收低功耗蓝牙标签信息和视障用户通过智能手机的蓝牙模块发出的指令，再将接收到的信息或指令所携带的用户数据发送到嵌入式处理器主芯片STM32由嵌入式导盲控制软件主程序调用。
参照图7所示，功放电路采用的是10W工业级芯片TDA2003，其主要功能是对输入的音频信号送进功放电路进行放大并播放。参照图8所示，音频编解码电路采用工业级音频编解码芯片YX6100，其主要功能是将嵌入式处理器发送的动态数据转换成音频信号，然后嵌入式处理器可以将转换成的音频信号和FLASH存储的固定音频数据组合送进功放电路进行放大并播放，将进站车辆所属的线路通过语音播放引导站台候车的视障用户上车。
为了实现导盲功能，本系统在云端控制主机上部署有用于综合控制的导盲应用系统，在智能手机上安装有供视障人士使用的导盲APP，导盲APP可以在语音读屏模式下方便视障人士操作和使用。
本实施例的助乘系统在为视障人士提供服务的同时，还能为普通出行者、公交运输企业、公交站场管理单位、公交行业主管部门所使用和提供附加价值。为普通出行者所使用和提供附加价值是指导盲APP也能安装在普通出行者的智能手机（操作系统为Android 4.3或iOS 7.0及以上）上为普通出行者提供公交信息查询、线路收藏、智能提醒、前方路况等个性化公交信息服务；为公交运输企业所使用和提供附加价值是指车辆标签、站点标签可用于公交运输企业对公交车在精准报站、停场、检修、保养、安全巡检等环节的精细化管理；为公交站场管理单位所使用和提供附加价值是指站点标签可用于公交站场管理单位在站点巡查管理、设施维护等环节的精细化管理；为公交行业主管部门所使用和提供附加价值是指本系统的硬件设施可用于加强对公交车飞站等监管。
本系统具有以下优点：
（1）由于本系统充分共享利用公交行业信息，所用公交信息数据与智能公交系统数据始终保持同步和一致性，能很好地适应公交线路、站点频繁动态变化的实际情况，始终为视障用户提供正确的公交出行引导；
（2）由于本系统采取新兴的、与智能手机相结合的低功耗蓝牙（蓝牙4.0及以上）技术，车载导盲终端、车辆标签和站点标签都是极小体积、极低功耗、极易部署、极易维护和高可靠的设备，同时避免定制开发专用手持终端所需的高成本，因此系统建设和维护的成本极大降低，极易推广和使用；
（3）由于本系统采取低功耗蓝牙（蓝牙4.0及以上）技术，因此极大地扩大了系统的受众面，不仅能为视障用户提供公交出行引导服务，同时能为更多的普通公交出行者提供公交信息查询、线路收藏、智能提醒、前方路况等个性化公交信息服务；
（4）本系统是开放的系统，可同时为视障用户、普通出行者、公交运输企业、公交站场管理单位、公交行业主管部门提供各种附加服务和价值，多方共建、共享和共同维护并广受欢迎，是“健残共融”理念在公交出行领域的具体体现，因此具有强大的生命力；
（5）创新集成了骨传导技术和耳机，大幅提高了实用性。
实施例二
基于实施例一的助乘系统的一种城市公共交通视障人士助乘方法，包括：
S1、通过智能手机获取视障人士的出行路线，并发送到智能云平台；具体为：通过智能手机响应于视障人士的操作，根据视障人士选择的常用行程、常坐路线或临时坐车线路，解析获得视障人士的出行路线，并发送到智能云平台。
在智能手机上开发有供视障人士使用的导盲APP，视障人士出行时，通过语音控制等方式在导盲APP上操作输入出行路线，可以是从导盲APP收藏的“常用行程”、“常坐路线”中选择的一条或多条公交路线，也可以是输入临时坐车线路，通过导盲APP输入拟乘车线路并选择上行线路或下行线路，或通过类似“周边线路搜索”功能按钮搜索附近线路并从线路列表中选择拟乘坐的线路。
S2、智能云平台通过云端控制主机接收智能手机发送的出行路线后，从公交信息数据库获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机；
S3、智能手机实时采集周围的站点标签信号并与站点标签编码列表进行比对，进而判断采集的站点标签信号是否与出行路线匹配，并在匹配成功时发出对应的语音提示信息，同时将匹配的站点标签信号发送到智能云平台并执行步骤S4；
站点标签信号是包含该站点标签的站点标签编码、发射信号强度在内的信号。
S4、智能云平台获取与出行线路对应的公交车辆的行驶动态数据，生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表；
S5、智能手机实时采集进站公交车辆的车辆标签信号并与车辆标签编码列表进行匹配，并在匹配成功后，自动播放对应的语音提示信息，并执行步骤S6；
车辆标签信号是包含该车辆标签的车辆标签编码、发射信号强度在内的信号。
S6、智能手机与公交车辆上的车载导盲终端建立连接，进而将出行线路及匹配成功的车辆标签信号发送到车载导盲终端；
S7、车载导盲终端接收数据后进行匹配，若匹配成功，则语音播报用于引导视障人士上车的提示信息；
智能手机实时采集周围的站点标签信号和车辆标签信号，进而判断视障人士是否成功上车，并播放相应的语音提示信息；智能手机根据采集到的站点标签信号和车辆标签信号中的信号强度以及编码来综合判断用户是否上车和是否上对车，当持续稳定地接收不到出发站的站点标签编码并持续稳定地收到同一台车的车辆标签编码时，将该车辆标签编码与缓存在本地数据库和云端公交信息数据库的车辆标签编码匹配，看车辆标签编码对应的线路是否与用户选定的公交线路相符，如果相符则判断该视障人士成功上车，导盲APP会自动语音提醒用户成功上车和放心乘车，可播放“成功上车，请放心乘车”之类的语音提示信息。否则提示可能上错车，并提示用户向司机、身边其他乘客或客服中心确认并请求帮助。
S8、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息，同时在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息，提醒视障人士进行换乘或达到目的地。换乘时，同样可以应用本方法进行助乘引导。
优选的，本实施例还包括以下步骤：
车载导盲终端实时采集对应的公交车辆的车辆标签信息以及该车载导盲终端周围的站点标签信号后生成连接日志，并将连接日志发送到路侧信息采集装置；车辆标签信号是包含该车辆标签的车辆标签编码、发射信号强度在内的信号；站点标签信号是包含该站点标签的站点标签编码、发射信号强度在内的信号；
路侧信息采集装置将连接日志上传到智能云平台的公交信息数据库；
公交信息数据库对连接日志进行分析，进而判断获得发生故障或低电量的车辆标签或站点标签，并发出告警。
实施例三
本实施例是实施例二的更为详细的技术方案，包括以下步骤：
步骤1、视障人士通过导盲APP输入出行路线，智能手机响应于视障人士的操作，获取视障人士的出行路线，并发送到智能云平台，包括以下三种方式：
1）视障人士通过导盲APP中“线路收藏”功能收藏“常坐线路”（线路带上行或下行方向，不带出发站和目的站），收藏后，线路保存到导盲APP客户端用户的“常坐线路”收藏列表中，方便用户以后直接选择，避免重复输入；视障人士出行时可从导盲APP“常坐线路”中选定一条或多条公交线路；
2）视障人士通过导盲APP中“出行规划”功能收藏“常用行程”（“常用行程”为带出发站和目的站的公交出行方案），收藏后，该公交出行方案保存到导盲APP客户端用户的“常用行程”，收藏列表中，方便用户以后直接选择，避免重复规划，减少输入的复杂操作）；视障人士出行时可从导盲APP“常用行程”中选定一条或多条出行方案；
3）视障用户在临时乘坐某线路出行（即没有提前收藏该线路）的条件下，视障用户可从导盲APP“临时坐车”中输入拟乘车线路并选择上行线路或下行线路，或通过“周边线路搜索”功能按钮搜索附近线路并从线路列表中选择拟乘坐的线路。
出行路线选择按实际情形分类清晰、流程简捷，可一键操作、自动提醒和智能引导。
步骤2、云端控制主机的导盲应用系统在收到用户选定的线路后，从公交信息数据库将该线路所有途经站点以及对应的站点标签编码列表反馈至导盲APP客户端，并缓存在客户端本地数据库；
步骤3、由于站点标签不停地广播站点身份信息（站点标签编码），视障人士到达所选线路的任一站点附近（通常为10米以内，距离可调节控制），导盲APP通过手机蓝牙接口自动收到站点标签广播信号（站点标签编码），导盲APP将收到的站点标签编码与本地缓存的线路对应的站点标签编码列表进行比对，如果在本地缓存的站点标签编码列表中，则导盲APP自动语音提醒（APP语音提醒或报读是导盲APP通过TTS引擎远程调用语音合成接口将本地文字信息合成语音再反馈回本地，下同）视障人士某站点已到，导盲应用系统在收到用户已到达某站点的信息后，从公交信息数据库中查询该线路车辆运行的最新动态，并告知用户该线路最近班次的公交车辆距用户当前站还有几站和预计多少时间到达，同时将距用户当前站最近的3辆（数量可调整，下同）公交车编码反馈并缓存在导盲APP客户端，如果导盲APP接收到的站点标签编码不在本地线路站点标签编码列表中，则APP不予响应；
步骤4、视障人士在候车过程中，当最近班次的公交车距用户当前站还有2站（数量可调整，下同）时，导盲APP开始语音预报车辆即将进站；
步骤5、由于车辆标签不停广播车辆身份信息（车辆标签编码），当所乘线路的公交车进站时，导盲APP通过手机蓝牙接口自动收到的车辆标签广播信号（车辆标签编码），导盲APP将收到的车辆标签编码与本地缓存的车辆标签编码列表进行比对，如果在本地缓存的车辆标签编码列表中，则导盲APP自动语音提醒视障人士某线路公交车进站，同时用户的导盲手机通过蓝牙连接上车载导盲终端，导盲手机将线路及车辆标签编码发送给车载导盲终端，车载导盲终端收到信息后进行匹配，如果能匹配上，则车载导盲终端控制车载外置喇叭播报某线路公交车进站，否则不予响应。视障人士可在导盲APP上通过“重播”功能键按需控制车载导盲终端及喇叭播报线路语音，视障人士根据车载喇叭发出的线路语音上车，直至成功上车；
步骤6、当视障人士上车后，导盲APP根据收到的站点标签、车辆标签广播信号及信号强度的状态来综合判断用户是否上车和是否上对车，当持续稳定地接收不到出发站等的站点标签编码并持续稳定地收到同一台车的车辆标签编码，可认为用户已经上了这台车，并与缓存在本地数据库和云端公交信息数据库的车辆标签编码匹配，看车辆标签编码对应的线路是否与用户选定的公交线路相符，如果相符，则导盲APP会自动语音提醒用户成功上车和放心乘车，否则会提示可能上错车，并提示用户向司机、身边其他乘客或客服中心确认并请求帮助。
步骤7、当视障人士乘坐所选线路的公交车前往目的地途中，途径该线路上每个站点时，导盲APP会自动接收到途径的站点标签的广播信号，导盲APP将接收到的站点标签编码与缓存在本地的该线路站点标签编码列表匹配，如果包含在本地线路站点标签编码列表中，导盲APP自动语音提醒视障人士某站已到，直至视障人士下车。
步骤8、当用户所乘车辆在到达换乘站或目的站的上1站（预提醒站数可调整），通过接收到的站点标签编码与本地缓存的站点标签编码列表的匹配来正确预报即将到达换乘站或目的站，提醒用户做好换乘或下车的准备；当用户所乘车辆到达换乘站时，通过接收到的站点标签编码与本地缓存的换乘站点标签编码的匹配，导盲APP自动语音提醒用户“换乘站已到，请下车换乘其他线路”；当用户所乘车辆到达目的站时，通过接收到的站点标签编码与本地缓存的目的站点标签编码的匹配，导盲APP自动语音提醒用户“目的站已到，请下车”。
以上是对本发明的较佳实施进行了具体说明，但本发明创造并不限于所述实施例，熟悉本领域的技术人员在不违背本发明精神的前提下还可做出种种的等同变形或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。

Claims (14)

  1. 一种城市公共交通视障人士助乘系统，其特征在于，包括智能云平台、车载导盲终端、智能手机、用于对公交车辆进行唯一标识的车辆标签以及用于对公交站点进行唯一标识的站点标签，所述车载导盲终端和车辆标签均安装在公交车辆上，所述站点标签安装在公交站点，所述智能手机分别与车载导盲终端、车辆标签和站点标签无线连接，所述智能手机与智能云平台无线连接；
    所述智能云平台用于接收智能手机发送的出行路线后向智能手机发送该线路的站点标签编码列表，并根据智能手机实时采集的站点标签信号，向智能手机推送最接近的车辆标签编码列表；
    所述智能手机用于发送出行线路到智能云平台并存储智能云平台返回的站点标签编码列表后，实时采集周围的站点标签信号并反馈到智能云平台后接收智能云平台返回的最接近的车辆标签编码列表，进而结合实时采集的站点标签信号和车辆标签信号对视障人士进行助乘，并控制车载导盲终端进行语音播报提醒。
  2. 根据权利要求1所述的一种城市公共交通视障人士助乘系统，其特征在于，所述智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，所述智能手机分别与云端控制主机、公交信息数据库、云端语音数据库和云端地图数据库无线连接。
  3. 根据权利要求1或2所述的一种城市公共交通视障人士助乘系统，其特征在于，所述车载导盲终端包括嵌入式处理器、第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路，所述嵌入式处理器分别与第一低功耗蓝牙通信模块、通信接口模块、供电模块、功放电路以及音频编解码电路连接，所述车载导盲终端通过第一低功耗蓝牙通信模块与智能手机无线连接，所述功放电路与公交车辆的外放喇叭连接。
  4. 根据权利要求1至3任一项所述的一种城市公共交通视障人士助乘系统，其特征在于，所述车辆标签和站点标签均采用低功耗蓝牙标签，所述低功耗蓝牙标签包括第二低功耗蓝牙通信模块、锂电池、防拆电路、按键模块以及天线，所述第二低功耗蓝牙通信模块分别与锂电池、防拆电路、按键模块以及天线连接。
  5. 根据权利要求4所述的一种城市公共交通视障人士助乘系统，其特征在于，所述低功耗蓝牙标签采用防水、防尘的外壳封装。
  6. 根据权利要求1至5任一项所述的一种城市公共交通视障人士助乘系统，其特征在于，还包括安装在公交维修站、加气站和/或加油站的用于对车载导盲终端进行信息采集的路侧信息采集装置，所述路侧信息采集装置包括嵌入式主处理器、数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块，所述嵌入式主处理器分别与数据存储模块、电源电路、第三低功耗蓝牙通信模块和远程无线通信模块连接，所述路侧信息采集装置通过第三低功耗蓝牙通信模块与车载导盲终端无线连接，所述路侧信息采集装置通过远程无线通信模块与智能云平台无线连接。
  7. 根据权利要求1至6任一项所述的一种城市公共交通视障人士助乘系统，其特征在于，所述公交信息数据库为基于云服务的公交车辆数据、公交线路站点数据、公交站台数据、公交运行动态数据的数据收集、处理与存储中心，所述公交信息数据库包括公交动态和静态数据，所述公交动态数据指公交进出站数据，所述公交静态数据包括车辆数据、线路站点数据和站台数据；
    所述云端语音数据库为第三方的基于云服务的语音数据采集、语音合成、语音及语义识别的采集、处理和存储中心，所述云端语音数据库用于根据智能手机的用户请求，将采集的文字信息转换成语音，或者将采集的语音语义转换成文字信息，并反馈回智能手机；
    所述云端地图数据库为第三方的基于云服务的城市道路数据、地形数据、兴趣点数据的采集、处理与存储中心，所述云端地图数据库用于根据智能手机的请求定位用户当前位置并显示周边道路、地形、兴趣点及公交线路路径。
  8. 根据权利要求6或7所述的一种城市公共交通视障人士助乘系统，其特征在于，所述智能手机还连接有骨传导耳机。
  9. 一种城市公共交通视障人士助乘方法，其特征在于，包括：
    S1、通过智能手机获取视障人士的出行路线，并发送到智能云平台；
    S2、智能云平台接收智能手机发送的出行路线后，获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机；
    S3、智能手机实时采集周围的站点标签信号并与站点标签编码列表进行比对，进而判断采集的站点标签信号是否与出行路线匹配，并在匹配成功时发出对应的语音提示信息，同时将匹配的站点标签信号发送到智能云平台并执行步骤S4；
    S4、智能云平台获取与出行线路对应的公交车辆的行驶动态数据，生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表；
    S5、智能手机实时采集进站公交车辆的车辆标签信号并与车辆标签编码列表进行匹配，并在匹配成功后，自动播放对应的语音提示信息，并执行步骤S6；
    S6、智能手机与公交车辆上的车载导盲终端建立连接，进而将出行线路及匹配成功的车辆标签信号发送到车载导盲终端；
    S7、车载导盲终端接收数据后进行匹配，若匹配成功，则语音播报用于引导视障人士上车的提示信息；
    S8、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息，同时在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。
  10. 根据权利要求9所述的一种城市公共交通视障人士助乘方法，其特征在于，所述步骤S7与S8之间还包括以下步骤：
    智能手机实时采集周围的站点标签信号和车辆标签信号，进而判断视障人士是否成功上车，并播放相应的语音提示信息。
  11. 根据权利要求9或10所述的一种城市公共交通视障人士助乘方法，其特征在于，所述步骤S1，其具体为：
    通过智能手机响应于视障人士的操作，根据视障人士选择的常用行程、常坐路线或临时坐车线路，解析获得视障人士的出行路线，并发送到智能云平台。
  12. 根据权利要求9至11任一项所述的一种城市公共交通视障人士助乘方法，其特征在于，所述智能云平台包括云端控制主机、公交信息数据库、云端语音数据库以及云端地图数据库，所述步骤S2，其具体为：
    智能云平台通过云端控制主机接收智能手机发送的出行路线后，从公交信息数据库获取该路线所有途经站点以及对应的站点标签编码列表后反馈给智能手机。
  13. 根据权利要求9至12任一项所述的一种城市公共交通视障人士助乘方法，其特征在于，所述步骤S4，其具体为：
    智能云平台结合公交信息数据库和云端地图数据库获取与出行线路对应的公交车辆的行驶动态数据，并结合云端语音数据库生成对应的语音提示信息发送到智能手机进行播报，同时向智能手机推送最接近的车辆标签编码列表。
  14. 根据权利要求9至13任一项所述的一种城市公共交通视障人士助乘方法，其特征在于，所述步骤S8，包括：
    S81、智能手机实时采集公交车辆经过的每个站点的站点标签信号，并与出行线路对应的站点标签编码列表进行匹配，若匹配成功，则播放对应的语音提示信息；
    S82、在判断到达出行线路的换乘站的上一站或目的站的上一站时，播放对应的语音提示信息；
    S83、在判断到达出行线路的换乘站或目的站时，播放对应的语音提示信息。
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