CN102455186A - Action travel navigation and guide device and navigation and guide method therefor - Google Patents
Action travel navigation and guide device and navigation and guide method therefor Download PDFInfo
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- CN102455186A CN102455186A CN2010105139440A CN201010513944A CN102455186A CN 102455186 A CN102455186 A CN 102455186A CN 2010105139440 A CN2010105139440 A CN 2010105139440A CN 201010513944 A CN201010513944 A CN 201010513944A CN 102455186 A CN102455186 A CN 102455186A
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Abstract
The invention discloses an action travel navigation and guide device and a navigation and guide method therefor. The action travel navigation and guide device comprises a memory unit, a communication module, a global positioning module and a radio frequency identification module. The navigation and guide method comprises the following steps that a positioning unit of the global positioning module receives multiple real-time position signals; the multiple real-time position signals are operated by a navigation unit; according the operation result, navigation data corresponding to navigation conditions are researched in the memory unit and are data of a navigation destination; a radio frequency identification reading unit of the radio frequency identification module reads real-time information of multiple preset radio frequency identification labels; a navigation and guide unit operates the real-time information to determine a set-point signal; and data of navigation between the position of the set-point signal and the position of the navigation destination are researched in the memory unit according to the position data of the navigation destination and are displayed by a display unit.
Description
Technical field
The present invention is meant a kind of action travel navigation and guide to visitors device that has navigation and guide to visitors function concurrently especially relevant for a kind of action travel navigation device.
Background technology
GPS (Global Positioning System; GPS) be a kind of middle distance circuit orbit satellite navigation system; Utilize 24 satellites that are looped around 6 circular orbits to form, it has fast, saves time, locatees advantages such as not receiving weather effect and removable location.
Complete GPS includes three partly: the control point (control segment) on the satellite in the space (space segment), ground and user's receiving end (user segment), and like the GPS receiver.These satellites that are positioned on the track constantly send about related data information such as satellite numbering, present time and the positions of satellite own; After the GPS receiver receives the related data information of transmitting from least three satellites, via computing to obtain the function that distance between GPS receiver and the satellite reaches the location.When the user who holds the GPS receiver began displacement, the GPS receiver is the position of renewal constantly itself and the related data information that receives satellite constantly and transmitted also, so to calculate user's moving direction.Whether the running of the control point management and control satellite on ground normally reaches the degree of accuracy of safeguarding satellite system.
Yet; The precision of commercial GPS itself is according to the appointment about ten meters; Therefore when people place oneself in the midst of in narrow and small (less than 10 meters) and the complicated tunnel or the building stands in great numbers etc. and to cause satellite-signal to be stopped position; GPS can't accomplish location action accurately, then can't locate in the indoor environment that can't receive GPS.
Prior art is utilized difference global positioning signal emitter (Differential GPS; DGPS) to proofread and correct the not enough problem of GPS precision; DGPS sets up at least one DGPS base station in advance receiving a plurality of positional informations, through these positional informations of computing to proofread and correct the received positional information of GPS.Though utilize DGPS can solve the problem that GPS can't precisely confirm the position, the hardware and the software cost of its overall architecture are high.
In addition; When people visit indoor exhibition; Chang Yin knows about the worried awkward situation that maybe can't obtain this show piece information in the show piece of visiting that can not find of some information of interior display article; Therefore all prepare to have public Audio Guide for leasing in the exhibition inlet, but these public Audio Guide majorities provide the manual operation speech guide, and self-navigation location and multimedia navigation can't be provided.
Summary of the invention
Seeing that prior art is said; A purpose of the present invention; Be to provide a kind of action travel navigation and guide to visitors device; This action travel navigation and guide to visitors device receive the real-time information that the active wireless radio frequency identification label built from a location system or a plurality of cloth is in advance provided, and this action travel navigation and guide to visitors device comprise a mnemon, a communication module, a global location unit and a radio frequency identification module.
This mnemon stores the guide to visitors of a cartographic information, corresponding these active wireless radio frequency identification labels and introduces data and the communication data that supplies this communication module to use; This communication module is electrically connected on this mnemon; This global location module is electrically connected on this mnemon; This global location module comprises a locating unit and a navigation elements, and this positioning unit receives a plurality of real time position signals, and converts these position signallings into a location signal; This navigation elements is electrically connected on this mnemon and this positioning unit; This navigation elements from mnemon acquisition to a map location that should positioning signal; In this mnemon, hunt out a corresponding navigation data as navigation destination according to a guidanuce condition again, convert this positioning signal and this navigation data into optimal path data by present real time position to this navigation destination through computing.
This radio frequency identification module is electrically connected on this global location module and this mnemon, and this radio frequency identification module comprises a radio frequency identification reading unit and an assisting navigation and guide to visitors unit.
This radio frequency identification reading unit is in order to read the real-time information that these active wireless radio frequency identification labels are provided, and wherein this real-time information comprises tag number and longitude and latitude position data; Wherein these active wireless radio frequency identification labels are deployed in and have in the complicated tunnel or the building real-time information that causes this positioning system such as stand in great numbers is stopped and causes this global location unit can't accomplish the outdoor environment of location action accurately, to proofread and correct the not enough problem of this global location unit precision.
This assisting navigation and guide to visitors unit are electrically connected and this radio frequency identification reading unit; These longitudes that this assisting navigation and guide to visitors unit are read according to the radio frequency identification reading unit and Position Latitude data obtain a corresponding set point signal of real time position at present, and certainly this mnemon acquisition to a map location that should set point signal; In this mnemon, hunt out a navigation data by the longitude and latitude position data of longitude and latitude position data to this destination of this set point signal according to the longitude and latitude position data of the active wireless radio frequency identification label of a destination again, and this navigation data is shown in display unit.
And in the indoor environment of the real-time information that can't receive positioning system; Dispose a plurality of wireless radio frequency identification marks in advance; The longitude and latitude position data that the radio frequency identification reading unit of this assisting navigation and guide to visitors unit foundation reads obtains a fixed point signal, and certainly the acquisition of this mnemon to a map location that should set point signal; In this mnemon, hunt out a navigation data by the longitude and latitude position data of longitude and latitude position data to this destination of this set point signal according to the longitude and latitude position data on the active wireless radio frequency identification label of a destination again, and this navigation data is shown in display unit.
Above-mentioned with the position data on the radio frequency identification reading unit reading tag of radio frequency identification module, and by this assisting navigation and this position data of guide to visitors cell processing to reach the action travel navigation running of outdoor positioning correcting navigation and indoor location navigation.
Scenery or showpiece historical relic are disposed wireless radio frequency identification mark in tourist attractions; Assisting navigation and guide to visitors unit read the tag number of wireless radio frequency identification mark according to this radio frequency identification reading unit; With this mnemon intercepting certainly the guide to visitors that should the label label stores is introduced data; Be shown in display unit, to reach automatic guide to visitors running.
In addition, the present invention more provides a kind of navigation and guide method of take action travel navigation and guide to visitors device, comprises:
At first, receive a plurality of position signallings that provided by this positioning signal emitter through locating unit, to obtain the positioning signal of a position, this positioning signal has a longitude coordinate and a latitude coordinate through these position signallings of computing.And the guide to visitors that utilizes a mnemon to store a cartographic information and corresponding a plurality of active wireless radio frequency identification labels of laying is in advance introduced data and the communication data that supplies this communication module to use.
Utilize a navigation elements that this positioning signal and this map datum are mated; To produce map location corresponding to this positioning signal; In this mnemon, hunt out a corresponding navigation data as navigation destination according to a guidanuce condition; And by this positioning signal of computing and this navigation data hunting out the optimal path data by present real time position to this navigation destination, and utilize a display unit to show these optimal path data.
Then, utilize a radio frequency identification reading unit to detect and a wireless radio frequency identification signal whether occurs,, then continue to position and navigate through this global location module if this radio frequency identification reading unit does not have the wireless radio frequency identification signal of detecting.
If this radio frequency identification reading unit detects wireless radio frequency identification signal; Utilize this radio frequency identification reading unit to read the active wireless radio frequency identification label that these are laid in advance, wherein respectively this active wireless radio frequency identification label comprises a tag number and longitude and latitude position data.
At last, utilize an assisting navigation and guide to visitors unit to receive these tag number and longitude and latitude position data, and by these position datas of computing to obtain a fixed point signal; This assisting navigation and guide to visitors unit hunt out a navigation data by position data to these destination locations data of this set point signal according to the position data of a destination from this mnemon, and are shown in this display unit.
Action travel navigation of the present invention and guide to visitors device are integrated this communication module, this global location module and this radio frequency identification module simultaneously in electronic installation together; Can accomplish communication, outdoor navigation, indoor navigation and guide to visitors function for the user, its cost is low compared to the described DGPS of prior art.
Description of drawings
Fig. 1 is the circuit block diagram of action travel navigation of the present invention and guide to visitors device;
Fig. 2 is the navigation and the guide method process flow diagram of action travel navigation of the present invention and guide to visitors device.
Wherein, Reference numeral:
10 action travel navigation and guiders
110 input blocks
120 display units
130 global location modules
132 positioning units
134 navigation elements
140 radio frequency identification modules
142 radio frequency identification reading units
144 assisting navigations and guide to visitors unit
150 mnemons
160 communication modules
S300～S316 navigation and guide method process step
Embodiment
Cooperate and consult Fig. 1, be the circuit block diagram of action travel navigation of the present invention and guide to visitors device.This action travel navigation and guide to visitors device 10 receives the real-time information that the active wireless radio frequency identification label (Radio Frequency Identification Tag, RFID Tag) built from a plurality of positioning signal emitters or a plurality of cloth is in advance provided.Wherein respectively this positioning signal emitter sends a plurality of real time position signals constantly; These active wireless radio frequency identification labels are laid in street, scenery or showpiece historical relic in advance; And respectively have a tag number in this active wireless radio frequency identification label, corresponding these wireless radio frequency identification marks are provided with the longitude and latitude position data of position, and send a wireless radio frequency identification signal constantly.
This action travel navigation and guide to visitors device 10 can be communication electronic devices such as a delegation's mobile phone or a personal digital assistant, and comprise an input block 110, a display unit 120, a global location module 130, a radio frequency identification module 140, a mnemon 150 and a communication module 160.
This input block 110 is imported a guidanuce condition in order to the user to be provided, and like one tunnel name, an address or a sight spot title, this input block 110 can for example be button or microphone.This display unit 120 is in order to show navigation or the guide to visitors information that is provided by the guidanuce condition of user's input and corresponding this action travel navigation and guide to visitors device 10, and this display unit 120 can for example be a screen.In addition; This input block 110 and this display unit 120 can through application interface be integrated into one have input function and Presentation Function simultaneously touch control screen, provide the user directly on touch screen, to accomplish the setting of guidanuce condition with modes such as importing, choose.
This mnemon 150 stores the guide to visitors of literal, map file, voice, film or its array configuration of a cartographic information, corresponding these tag number and introduces data and supply the communication data of this communication module use.Wherein this mnemon 150 can be the internal storage of this action travel navigation and guide to visitors device 10, or is a drawing out type memory card, as: SD card, XD card, Memory Stick, Compact Flash, or other data storing assembly that is suitable for.
This global location module 130 is electrically connected on this input block 110, this display unit 120 and this mnemon 150, and this global location module 130 comprises locating unit 132, reaches a navigation elements 134; This positioning unit 132 is in order to receive these real time position signals from this positioning signal emitter; And through these position signallings of computing with obtain the user position one the location signal; This positioning signal has the position data of a longitude coordinate and a latitude coordinate; Afterwards, this positioning signal is passed to this navigation elements 134.
This navigation elements 134 is electrically connected on this positioning unit 132; This navigation elements 134 receives and handles this positioning signal of being transmitted by this positioning unit 132; And remember in the unit 150 acquisition certainly, and this map location is shown in this display unit 120 with the ground diagram form to a map location that should positioning signal.
Then; This navigation elements 134 hunts out a pair of navigation data that should guidanuce condition with as navigation destination according to the guidanuce condition that the user imported in corresponding mnemon 150; And by this positioning signal of computing and this navigation data hunting out the optimal path data by this action tourism guide to visitors and the present real time position of guider to this navigation destination, and these optimal path data are shown in this display unit 120 in real time with the ground diagram form.
When the real-time position of the uninterrupted change of user, this global location module 130 also constantly repeats above-mentioned location action, until the user is guided to navigation destination smoothly.
The navigation destination that arrives when user's desire is positioned at that narrow and small, complicated lane is done or indoor and this global location module 130 can't be accomplished location action accurately, this action travel navigation and guide to visitors device 10 through this radio frequency identification module 140 with auxiliary user in the lane, lane or the indoor location action of accomplishing accurately.
This radio frequency identification module 140 is electrically connected on this input block 110, this display unit 120 and this global location module 130, and this radio frequency identification module 140 comprises a radio frequency identification reading unit 142 and an assisting navigation and guide to visitors unit 144.
This radio frequency identification reading unit 142 in order to the wireless radio frequency identification signal of the active wireless radio frequency identification label that reads these and lay in advance with in be built in the tag number and the longitude and latitude position data of these active wireless radio frequency identification labels, and will read the result and be passed to this assisting navigation and guide to visitors unit 144.
This assisting navigation and guide to visitors unit 144 are electrically connected on this radio frequency identification reading unit 142; This assisting navigation and guide to visitors unit 144 receive these tag number, the longitude and latitude position data that is read by this radio frequency identification reading unit 142; And through these position datas of computing (as: triangulo operation) to obtain corresponding this action tourism guide to visitors and one of the present real time position of the guider signal of fixing a point; And a pair of map location that should set point signal of this cartographic information intercepting of this mnemon 150 certainly, and this map location is shown in this display unit 120 with the ground diagram form.
Then; The longitude and latitude position data that the active wireless radio frequency identification label of the destination that this assisting navigation and guide to visitors unit 144 are desired to arrive at according to the user is provided; In this mnemon 150, hunt out a navigation data by the longitude and latitude position data of longitude and latitude position data to this destination of this set point signal, and this navigation data is shown in this display unit 120 with the ground diagram form.
Above-mentioned radio frequency identification reading unit 142 with radio frequency identification module 140 reads the longitude and latitude position data on the active wireless radio frequency identification label; And cooperate the transmission of accomplishing navigation data with this mnemon 150 by this assisting navigation and guide to visitors unit 144, to reach the action travel navigation running of outdoor positioning correcting navigation and indoor location navigation.
In addition; When the user desires to read the guide to visitors data of scenery or showpiece further; Can read the tag number of this RFID tag through this radio frequency identification reading unit 142; By what this assisting navigation and 144 interceptings of guide to visitors unit were stored in this mnemon 150 right guide to visitors is introduced data, and this guide to visitors is introduced data presentation in this display unit 120, to reach automatic guide to visitors running.
This communication module 160 is electrically connected on this mnemon 150, and this communication module 160 supplies users to accomplish information transfer functions such as conversation, online, and it is identical with existing communication module that its framework and function connect, and then will not give unnecessary details at this.
Cooperate and consult Fig. 2, be the navigation and the guide method process flow diagram of action travel navigation of the present invention and guide to visitors device.This action travel navigation and guide to visitors device 10 receives the real-time information that the active wireless radio frequency identification label built from a plurality of positioning signal emitters or a plurality of cloth is in advance provided.Wherein respectively this positioning signal emitter sends a plurality of real time position signals constantly; These active wireless radio frequency identification labels are laid in street, scenery or showpiece historical relic in advance; And respectively have a tag number in this active wireless radio frequency identification label and corresponding these active wireless radio frequency identification labels are provided with the longitude and latitude position data of position, and send a wireless radio frequency identification signal constantly.
The navigation and the guide method of this action travel navigation and guide to visitors device comprise:
At first; Receive these real time position signals that provided by these positioning signal emitters through locating unit 132; To obtain the positioning signal (step S300) of a pair of should take action travel navigation and the present real time position of guide to visitors device, this positioning signal has a longitude coordinate and a latitude coordinate through these position signallings of computing; And the guide to visitors that utilizes a mnemon 150 to store a cartographic information, corresponding these tag number is introduced data and a communication data (step S302).
Then, utilize a navigation elements 134 that this positioning signal and this cartographic information are mated, producing map location (step S304), and this map location is shown in this display unit 120 with the ground diagram form, supply user's reading corresponding to this positioning signal.In this mnemon 150, hunt out a corresponding navigation data as navigation destination according to a guidanuce condition, and by this positioning signal of computing and this navigation data to hunt out the optimal path data (step S306) by present real time position to this navigation destination; Afterwards, these optimal path data are presented in a display unit 120 (step S308) with the ground diagram form.
The same time; Utilize a radio frequency identification reading unit 142 to detect wireless radio frequency identification signal (step S310) whether occurs; If this radio frequency identification reading unit 142 does not detect wireless radio frequency identification signal; Then return back to step S300, the present real time position according to the user positions and navigation action constantly.And, utilize this radio frequency identification reading unit 142 to read the tag number and the longitude and latitude position data (step S312) of these active wireless radio frequency identification labels if this radio frequency identification reading unit 142 detects wireless radio frequency identification signal.
Afterwards; Utilize an assisting navigation and guide to visitors unit 144 to receive these tag number and these longitude and latitude position datas; Through this assisting navigation and these position datas of guide to visitors unit 144 computings to obtain the set point signal of a pair of should take action travel navigation and the present real time position of guide to visitors device; And this set point signal and the cartographic information that is stored in this mnemon 150 mated; Producing a map location corresponding to this set point signal, and this map location is shown in this display unit 120 with the ground diagram form.Again; The longitude and latitude position data that the active wireless radio frequency identification label of this assisting navigation and 144 foundations, one destination, guide to visitors unit is provided; In this mnemon 150, hunt out a navigation data by the longitude and latitude position data of longitude and latitude position data to this destination of this set point signal, and this navigation data is shown in this display unit 120 (step S314) with the ground diagram form.
In addition, data are introduced in this assisting navigation and guide to visitors unit 144 also the intercepting guide to visitors to should tag number that is stored in this mnemon 150, and this guide to visitors is introduced data presentation in this display unit 120 (step S316), supply user's reading.
The above is merely preferred embodiment of the present invention, and when not limiting the scope that the present invention implements, promptly all equalizations of doing according to scope of patent protection of the present invention change and revise, and all should still belong to the category of scope of patent protection protection of the present invention.
Claims (9)
1. an action travel navigation and guide to visitors device is characterized in that, receive the real-time information that the active wireless radio frequency identification label built from a location system or a plurality of cloth is in advance provided, and this action travel navigation and guide to visitors device comprise:
One mnemon, the guide to visitors that stores a cartographic information, corresponding these active wireless radio frequency identification labels is introduced data and is supplied the communication data of this communication module use;
One communication module is electrically connected on this mnemon;
One global location module is electrically connected and this mnemon, and this global location module comprises:
Locating unit; Receive the real-time information that this positioning system provides; Wherein this real-time information comprises a plurality of real time position signals, and this positioning unit converts these position signallings into the positioning signal of a pair of should take action travel navigation and the present real time position of guide to visitors device;
One navigation elements; Be electrically connected on this mnemon and this positioning unit; This navigation elements from mnemon acquisition to a map location that should positioning signal; In this mnemon, hunt out a corresponding navigation data as navigation destination according to a guidanuce condition again, convert this positioning signal and this navigation data into optimal path data by present real time position to this navigation destination through computing;
One radio frequency identification module is electrically connected on this global location module and this mnemon, and this radio frequency identification module comprises:
One radio frequency identification reading unit, in order to read the real-time information that these active wireless radio frequency identification labels are provided, wherein respectively this real-time information comprises a tag number and a longitude and Position Latitude data; And
One assisting navigation and guide to visitors unit; Be electrically connected on this radio frequency identification reading unit; These longitude and latitude position datas that this assisting navigation and guide to visitors unit read according to the radio frequency identification reading unit are to obtain a fixed point signal of a pair of should take action travel navigation and the present real time position of guide to visitors device; Hunt out a navigation data by position data to these destination locations data of this set point signal according to the position data of a destination from this mnemon again, and be shown in a display unit.
2. action travel navigation as claimed in claim 1 and guide to visitors device is characterized in that, data presentation will be introduced in this display unit to this guide to visitors that should tag number in this assisting navigation and guide to visitors unit.
3. action travel navigation as claimed in claim 1 and guide to visitors device is characterized in that, comprise:
One input block supplies the user to import a guidanuce condition.
4. action travel navigation as claimed in claim 1 and guide to visitors device is characterized in that, this mnemon is an internal storage.
5. action travel navigation as claimed in claim 1 and guide to visitors device is characterized in that, this mnemon is or is a drawing out type memory card.
6. the navigation and the guide method of travel navigation and guide to visitors device of taking action is characterized in that, comprises:
A. receive a plurality of position signallings that provided by this positioning signal emitter through locating unit; To obtain the positioning signal of a pair of should take action travel navigation and the present real time position of guide to visitors device, this positioning signal has a longitude coordinate and a latitude coordinate through these position signallings of computing;
B. the guide to visitors that utilizes a mnemon to store the tag number of a cartographic information and corresponding a plurality of active wireless radio frequency identification labels of laying is in advance introduced data;
C. utilize a navigation elements that this positioning signal and this map datum are mated, to produce map location corresponding to this positioning signal;
D. in this mnemon, hunt out a corresponding navigation data as navigation destination according to a guidanuce condition, and by this positioning signal of computing and this navigation data to hunt out the optimal path data by present real time position to this navigation destination;
E. utilize a display unit to show these optimal path data;
F. utilize a radio frequency identification reading unit to detect and a wireless radio frequency identification signal whether occurs;
G. after step F, if not, then return back to steps A;
H. after step F, if, utilize this radio frequency identification reading unit to read the active wireless radio frequency identification label that these are laid in advance, wherein respectively this active wireless radio frequency identification label comprises a tag number and longitude and latitude position data;
I. utilize an assisting navigation and guide to visitors unit to receive these tag number and longitude and latitude position data, and by these longitude and latitude position datas of computing to obtain a fixed point signal;
J. this assisting navigation and guide to visitors unit hunt out a navigation data by position data to these destination locations data of this set point signal according to the position data of a destination from this mnemon, and are shown in this display unit.
7. the navigation and the guide method of action travel navigation as claimed in claim 5 and guide to visitors device; It is characterized in that; Also comprise a step J1; After step J, the guide to visitors to should tag number that utilizes this assisting navigation and the intercepting of guide to visitors unit to be stored in this mnemon is introduced data, and this guide to visitors is introduced data is presented in this display unit.
8. the navigation and the guide method of action travel navigation as claimed in claim 5 and guide to visitors device; It is characterized in that; Also comprise a step I1; After step I, utilize this assisting navigation and guide to visitors unit that this set point signal and the cartographic information that is stored in this mnemon are mated, produce a map location corresponding to this set point signal.
9. the navigation and the guide method of action travel navigation as claimed in claim 8 and guide to visitors device is characterized in that, also comprise a step I2, after step I1, utilize this display unit to show this map location with the ground diagram form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105139440A CN102455186A (en) | 2010-10-14 | 2010-10-14 | Action travel navigation and guide device and navigation and guide method therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105139440A CN102455186A (en) | 2010-10-14 | 2010-10-14 | Action travel navigation and guide device and navigation and guide method therefor |
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| CN102455186A true CN102455186A (en) | 2012-05-16 |
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| CN2010105139440A Pending CN102455186A (en) | 2010-10-14 | 2010-10-14 | Action travel navigation and guide device and navigation and guide method therefor |
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| CN103325267A (en) * | 2013-06-07 | 2013-09-25 | 安徽工程大学 | Vehicle navigation system based on RFID technology |
| CN103546965A (en) * | 2013-11-04 | 2014-01-29 | 重庆邮电大学 | Indoor positioning shoe and positioning method thereof |
| CN103791898A (en) * | 2012-10-30 | 2014-05-14 | 联想(北京)有限公司 | Method and electronic equipment for navigation in building |
| WO2015143901A1 (en) * | 2014-03-25 | 2015-10-01 | 高德信息技术有限公司 | Navigation method and device |
| CN108345629A (en) * | 2017-12-26 | 2018-07-31 | 走遍世界（北京）信息技术有限公司 | Scenic region guide method and device |
| CN112819250A (en) * | 2021-02-26 | 2021-05-18 | 福州外语外贸学院 | Route planning system for intelligent tourism |
| CN112884099A (en) * | 2021-02-26 | 2021-06-01 | 福州外语外贸学院 | Portable positioning system for smart travel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103791898A (en) * | 2012-10-30 | 2014-05-14 | 联想(北京)有限公司 | Method and electronic equipment for navigation in building |
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| CN112819250A (en) * | 2021-02-26 | 2021-05-18 | 福州外语外贸学院 | Route planning system for intelligent tourism |
| CN112884099A (en) * | 2021-02-26 | 2021-06-01 | 福州外语外贸学院 | Portable positioning system for smart travel |
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Application publication date: 20120516 |