CN205594166U - Navigation terminal - Google Patents
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- CN205594166U CN205594166U CN201520895476.6U CN201520895476U CN205594166U CN 205594166 U CN205594166 U CN 205594166U CN 201520895476 U CN201520895476 U CN 201520895476U CN 205594166 U CN205594166 U CN 205594166U
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Abstract
The application discloses navigation terminal includes: the antenna, communication unit, with antenna connection, be used for through the antenna is communicated with the reference station, satellite signal receiving unit, with antenna connection, output unit, location navigation unit, with communication unit, satellite signal receiving unit reaches output unit connects, wherein, the location navigation unit pass through the antenna reaches satellite signal receiving unit receives and comes from navigation satellite's framing signal, and passes through the antenna reaches communication unit receives and comes from the corrected signal of reference station, and based on the framing signal reaches the corrected signal is confirmed navigation terminal's current position, and output unit output the current position. The utility model provides an above -mentioned navigation terminal for there is the unable technical problem who realizes the hi -Fix in ordinary electronic equipment terminal in solving prior art, realized carrying on the technological effect of hi -Fix at ordinary electronic equipment terminal.
Description
Technical field
This utility model relates to electronic technology field, particularly to a kind of navigation terminal.
Background technology
Along with the development of science and technology, satellite navigation quote industry the most progressively become one global
New high-tech industry, satellite fix is also applied in increasing field, such as geodata mapping, car
The field such as monitoring and scheduling, guide.
In the prior art, living for convenience, the commonly used navigation terminal of user carries out positioning or route
Inquiry, navigation terminal is able to receive that the satellite-signal of aeronautical satellite, positions based on satellite-signal.In order to
Realize hi-Fix, prior art generally uses based on GPS (Global Positioning System,
Global positioning system) accurate one-point positioning method.
But, the Static Precise Point Positioning used to realize hi-Fix in prior art is just for scientific research
Use, be not suitable for widely used electronic equipment.Therefore prior art exists usual device terminal
The technical problem of hi-Fix cannot be realized.
Utility model content
The embodiment of the present application provides a kind of navigation terminal, is used for solving to exist in prior art usual device
Terminal cannot realize the technical problem of hi-Fix, it is achieved that carries out high accuracy in usual device terminal
The technique effect of location.
On the one hand the embodiment of the present application provides a kind of navigation terminal, including:
Antenna；
Communication unit, is connected with described antenna, for being communicated with base station by described antenna；
Satellite signal receiving unit, is connected with described antenna；
Output unit；
Location navigation unit, with described communication unit, described satellite signal receiving unit and described output unit
Connect；
Wherein, described location navigation unit by described antenna and described satellite signal receiving unit receive from
The framing signal of aeronautical satellite, and received from described base station by described antenna and described communication unit
Revise signal, and determine the present bit of described navigation terminal based on described framing signal and described correction signal
Put；And the described current location of described output unit output.
Optionally, described antenna and described satellite signal receiving unit are for receiving and presetting what frequency matched
Described framing signal.
Optionally, described location navigation unit includes:
Differential positioning module, is used for resolving described framing signal, it is thus achieved that calculation result；
Processor, for based on described calculation result and described correction signal, determining working as of described navigation terminal
Prelocalization data, wherein, the precision of described current position determination data is sub-meter grade.
Optionally, described current position determination data is sent to navigation flat by described antenna by described communication unit
Platform, and receive the described current location that described navigation platform obtains based on described current position determination data.
Optionally, when described navigation terminal receives route guidance request, described communication unit and described sky
Line receives corresponding with the guidance path from described current location to destination locations from described navigation platform
Navigation data；Described output unit is used for exporting described navigation data.
Optionally, described navigation terminal also includes:
Audio Processing Unit, is connected with described output unit, for by described current location and/or described navigation
Data are converted into voice signal, and described output unit is used for exporting described voice signal.
Optionally, described navigation terminal also includes:
Whether detection device, exist barrier in detection one predetermined investigative range；
Alarm device, for when described detection device detects described barrier, sends alarm signal.
Optionally, described alarm device is specially audio output device, and described alarm signal is specially alarm sound
Frequently signal, described processor distance based on described barrier Yu the spacing of described navigation terminal, adjust institute
State audio output device and export the tone height of described alert audio signal.
Optionally, described detection device is specially supersonic sounding device.
Said one in the embodiment of the present application or multiple technical scheme, at least have one or more skills following
Art effect:
One, the navigation terminal in the embodiment of the present application is when positioning, by antenna and satellite signal receiving
Unit receives the framing signal from aeronautical satellite, due to satellite clock correction, atmospheric ionized layer, tropospheric refraction
Etc. the factor impact on satellite-signal, there is certain error in the framing signal causing navigation terminal to receive.
Navigation terminal in the embodiment of the present application receives the correction signal from base station by antenna and communication unit,
Satellite-signal is modified, above-mentioned error is reduced or eliminated, improve the precision of location so that navigation terminal
Obtain current location accurately.Visible, in the embodiment of the present application, the method by using Differential positioning achieves
The hi-Fix of navigation terminal, and Differential positioning realization is simple, it is possible to it is widely used, and in prior art
Static Precise Point Positioning use just for scientific research, therefore, the scheme in the embodiment of the present application efficiently solves existing
Have in technology and there is usual device terminal and cannot realize the technical problem of hi-Fix, it is achieved that general
Logical electronic device terminal carries out the technique effect of hi-Fix.
Two, the navigation terminal in the embodiment of the present application is by receiving correction signal and the employing of base station transmission
The mode of Differential positioning obtains the location data of sub-meter grade, it is achieved that hi-Fix, owing to using difference
The expense of location is relatively low, it is achieved that reduce the technical problem of hi-Fix cost.
Three, the navigation terminal in the embodiment of the present application is when receiving the navigation requests of user, for positioning number
Process to navigation platform according to sending, i.e. navigation terminal in the embodiment of the present application has powerful rear number of units
According to support, it is possible to preferably adapt to day by day complicated road conditions, and more accurate navigation results can be obtained.
Four, the navigation terminal in the embodiment of the present application is provided with alarm device, when navigation terminal detects in advance
When there is barrier in determining investigative range, it is possible to adjust report based on the distance between barrier and navigation terminal
The tone height of alert audio signal.As when barrier farther out time, tone is relatively low, when barrier is nearer, sound
Increase height, to point out the user of navigation terminal.And prior art generally uses the mode of vibrations remind use
Family, but owing to vibrations power is difficult to divide, and user is the most different to the sensitivity of vibrations, therefore can go out
Now correctly perception cannot shake strong and weak problem, and then the distance of obstacle distance navigation terminal cannot be determined.
Visible, scheme in the embodiment of the present application achieves the user of navigation terminal can accurately determine distance barrier
The technique effect of distance.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be only the embodiment of the present application, for those of ordinary skill in the art, do not paying creation
Property work on the premise of, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Mechanism's block diagram of a kind of navigation terminal that Fig. 1 provides for the embodiment of the present application one；
The structured flowchart of the navigation system that Fig. 2 provides for the embodiment of the present application one；
The structural representation of a kind of guide terminal that Fig. 3 provides for the embodiment of the present application two；
The structured flowchart of the guide terminal that Fig. 4 provides for the embodiment of the present application two.
Detailed description of the invention
The embodiment of the present application provides a kind of navigation terminal, is used for solving to exist in prior art usual device
Terminal cannot realize the technical problem of hi-Fix, it is achieved that carries out high accuracy in usual device terminal
The technique effect of location.
Technical scheme in the embodiment of the present application is to solve above-mentioned technical problem, and general thought is as follows:
A kind of navigation terminal, including: antenna；Communication unit, is connected with described antenna, for by described
Antenna communicates with base station；Satellite signal receiving unit, is connected with described antenna；Output unit；Fixed
Position navigation elements, connects with described communication unit, described satellite signal receiving unit and described output unit；
Wherein, described location navigation unit receives auto-navigation by described antenna and described satellite signal receiving unit
The framing signal of satellite, and receive the correction from described base station by described antenna and described communication unit
Signal, and the current location of described navigation terminal is determined based on described framing signal and described correction signal；With
And the described current location of described output unit output.
In technique scheme, described navigation terminal, when positioning, is connect by antenna and satellite-signal
Receive unit and receive the framing signal from aeronautical satellite, due to satellite clock correction, atmospheric ionized layer, troposphere folding
The factor impact on satellite-signal such as penetrating, there is certain mistake in the framing signal causing navigation terminal to receive
Difference.The correction that navigation terminal in the embodiment of the present application is received from base station by antenna and communication unit is believed
Number, satellite-signal is modified, above-mentioned error is reduced or eliminated, improve the precision of location so that navigation
Terminal obtains current location accurately.Visible, in the embodiment of the present application, the method by using Differential positioning is real
Show the hi-Fix of navigation terminal, and Differential positioning has realized simple, it is possible to be widely used, and existing skill
Static Precise Point Positioning in art uses just for scientific research, and therefore, the scheme in the embodiment of the present application effectively solves
There is usual device terminal in prior art and cannot realize the technical problem of hi-Fix, it is achieved that
The technique effect of hi-Fix is carried out in usual device terminal.
In order to be better understood from technique scheme, below by accompanying drawing and specific embodiment to this practicality
New technique scheme is described in detail, it should be understood that concrete in this utility model embodiment and embodiment
Feature is to describe technical solutions of the utility model in detail rather than to technical solutions of the utility model
Limiting, in the case of not conflicting, the technical characteristic in this utility model embodiment and embodiment can phase
Combination mutually.
Embodiment one
Navigation terminal in the embodiment of the present application can be applied in navigation system, and this navigation system includes described
Navigation terminal and navigation platform.Wherein, navigation terminal is the equipment body that user uses, and user can pass through
Navigation terminal obtains the positional information being currently located intuitively, it is also possible to obtain route guidance by navigation terminal
Information.Further, obtain life service information by navigation terminal, such as weather conditions, traffic letter
Breath etc..That is, navigation terminal can be entered according to the demand of oneself by navigation terminal for user, user
Row operation, the information that user goes for can be exported by navigation terminal.
Navigation platform provides data supporting for navigation terminal, and the request received from user when navigation terminal is believed
During breath, solicited message transmission is processed to navigation platform.Solicited message can be carried out soon by navigation platform
Speed processes, and result is fed back to navigation terminal so that result is exported by navigation terminal, this
Sample, user just can observe the information gone for intuitively.As, when solicited message is Location Request,
The result of navigation platform is positional information, when solicited message is navigation requests, and the process of navigation platform
Result is navigation way, and when solicited message is for service request, the result of navigation platform is information on services.
Described navigation terminal can be widely used in every field, as geodata mapping, vehicle monitoring and dispatching,
The fields such as guide.
Refer to Fig. 1, the embodiment of the present application provides a kind of navigation terminal, including:
Antenna 10；
Communication unit 11, is connected with described antenna 10, for being led to base station by described antenna 10
Letter；
Satellite signal receiving unit 12, is connected with described antenna 10；
Output unit 13；
Location navigation unit 14, and described communication unit 11, described satellite signal receiving unit 12 and described
Output unit 13 connects；
Wherein, described location navigation unit 14 is by described antenna 10 and described satellite signal receiving unit 12
Receive the framing signal from aeronautical satellite, and receive by described antenna 10 and described communication unit 11
From the correction signal of described base station, and determine described navigation based on described framing signal and described correction signal
The current location of terminal；And described output unit 13 exports described current location.
Further, described antenna 10 and described satellite signal receiving unit 12 are used for receiving and presetting frequency
The described framing signal matched.
Specifically, as in figure 2 it is shown, navigation terminal is obtained calmly by the framing signal receiving aeronautical satellite
Bit data.The kind of aeronautical satellite has multiple, in the embodiment of the present application, to receive the satellite of big-dipper satellite
As a example by signal.When user is positioned by navigation terminal, navigation terminal is believed by antenna 10 and satellite
Number receiving unit 12 receives the satellite-signal of big-dipper satellite.In the embodiment of the present application, to receive B1 frequency
Big Dipper satellite signal as a example by, wherein, the concrete scope of the B1 frequency of big-dipper satellite is
1559MHz～1591MHz.Described antenna can be special Beidou antenna, it is also possible to for general antenna,
Those skilled in the art can be configured according to actual needs.Owing to satellite-signal is in the process of transmission
In, can be affected by many factors such as satellite clock correction, atmospheric ionized layer, tropospheric refractions, therefore, be led
There is error in the satellite positioning signal that boat terminal receives, say, that if navigation terminal is only by receiving
To satellite-signal position, location there will be error.In order to eliminate the error that above-mentioned factor causes,
In the embodiment of the present application, navigation terminal receives auto-navigation also by antenna 10 and described communication unit 11 and puts down
The correction signal that the base station of platform sends.Based on described correction signal, framing signal is modified, it is thus achieved that accurate
True positional information.
In the embodiment of the present application, described location navigation unit includes:
Differential positioning module, is used for resolving described framing signal, it is thus achieved that calculation result；
Processor, for based on described calculation result and described correction signal, determining working as of described navigation terminal
Prelocalization data, wherein, the precision of described current position determination data is sub-meter grade.
Specifically, as in figure 2 it is shown, after navigation terminal receives the framing signal that big-dipper satellite sends,
Framing signal is resolved by described Differential positioning module, as satellite being decoded or using other technologies,
Recovered carrier signal, it is thus achieved that carrier frequency, carrier phase, and process resolvings such as obtaining satellite clock parameters
Result.Cause there is range finding by mistake due to the error of satellite clock and the error of atmospheric propagation due to satellite-signal
Difference, in order to improve the accuracy of location, described processor also can based on base station send correction signal to defending
Star signal is modified.Concrete, base station measures satellite to oneself pseudorange, then according to known bits
Put inverse and go out the reduction of pseudorange, i.e. difference information, and difference information is sent to navigation terminal.Base station
Can be carried out data transmission by mobile data network, or carry out data by cordless communication network and communication unit
Transmission.After described communication unit receives described difference information, by difference information in described calculation result
Difference is fallen, and just obtains described current location data, and the precision of location data is sub-meter grade.
Further, described current position determination data is sent to navigation flat by described antenna by described communication unit
Platform, and receive the described current location that described navigation platform obtains based on described current position determination data.
Specifically, navigation platform is provided with server zone, it is possible to navigation terminal send data and please
Ask and process in time.The multiple solicited message of user can be processed by server zone, it is possible to meets and uses
The family demand to variation information service.For different solicited messages, server zone can be at correspondence
Reason, concrete, the request that navigation terminal sends includes but not limited to following several ways:
First kind of way
The solicited message that described navigation information sends is the current location for asking to obtain described navigation terminal
Information.Described server zone is based on the described current position determination data received, the ground in pre-stored data storehouse
Reason information database determines the current location of described navigation terminal, and feeds back to navigation terminal.
Specifically, when user wants to position the position that oneself is current, sent by navigation terminal
Location Request.Concrete, navigation terminal can be provided with the physical button for location or virtual key, when
After user presses this button, on the one hand navigation terminal sends this location by mobile data network or wireless network
Ask to navigation platform, on the other hand by processor, satellite positioning signal is processed.Further,
After navigation terminal receives the correction signal that base station sends, satellite positioning signal is modified by processor
Process, obtain current position determination data, and send the data to server zone.
Solicited message is processed by server zone, determines that being currently needed for the current location to navigation terminal is carried out
Location.Preserving a pre-stored data storehouse on server zone, this pre-stored data storehouse comprises all kinds of word bank, as
Reason information database, has GIS data in geographic information database, be used for obtaining map datum, figurate number
According to, audio amplifier data etc..Owing to landform road condition data can change, therefore can there is renewal in pre-stored data storehouse
Mechanism, can be periodically to process data base, as updated weekly once, it is also possible to be at GIS
When data change processing pre-stored data storehouse, the application is not particularly limited.
In order to obtain the current location of navigation terminal, server zone based on navigation terminal send when prelocalization number
Make a look up according in described geographic information database, find the present bit corresponding with described location data
Put.Then, described current location is sent to navigation terminal so that current location is exported by navigation terminal.
The second way
When described navigation terminal receives route guidance request, described communication unit and described antenna receive
From the navigation data corresponding with the guidance path from described current location to destination locations of described navigation platform；
Described output unit is used for exporting described navigation data.
Specifically, when user wants to obtain route guidance information, navigation terminal sends this solicited message extremely
Server zone.Described server zone is based on described current position determination data, the geography information in pre-stored data storehouse
Data base determines the current location of navigation terminal, and determines from current location to purpose position according to destination locations
The path put.When path determines, owing to mulitpath can be there is from current location to destination locations, clothes
All paths can all be sent to navigation terminal by business device group, allows user select voluntarily.Server zone can also
An optimal path is determined in all paths, as length is the shortest, or the path that current road conditions are best,
Those skilled in the art can be set according to actual needs, then by the navigation corresponding with optimal path
Data send to navigation terminal, so that guidance path is exported by navigation terminal.
The third mode
When described solicited message is for asking the information obtaining information on services, described server zone is prestoring
Service information repository in data base is determined the first service data corresponding with described solicited message.
Specifically, except including geographic information database in described pre-stored data storehouse, also include service letter
Breath storehouse, certainly, described pre-stored data storehouse can also include other data bases, and those skilled in the art can root
Being configured according to being actually needed, the application is not particularly limited.When user wants to understand life service information,
As weather condition, traffic information can send solicited message to server zone, server zone by navigation terminal
In service information repository, the service number corresponding with described solicited message is determined according to the solicited message received
According to.As user wants to know about the weather condition of today, then server zone can be searched the present in service information repository
It weather forecast, and feed back to navigation terminal.For another example user goes for being currently located the road conditions letter of road
Breath, then server zone can find the road conditions of navigation terminal position in service information repository, and feeds back
To navigation terminal.Certainly, user can engage in the dialogue by calling the staff with platform, consulting
The problem wanted to know about.The application is not specifically limited.
Further, the output unit 13 of navigation terminal can be display screen, it is also possible to single for audio frequency output
Unit, the application is not specifically limited.In this application, as a example by exporting audio frequency, described navigation terminal also wraps
Include: Audio Processing Unit, be connected with described output unit, for by described current location and/or described navigation
Data are converted into voice signal, and described output unit is used for exporting described voice signal.
It addition, described navigation terminal also includes:
Whether detection device, exist barrier in detection one predetermined investigative range；
Alarm device, for when described detection device detects described barrier, sends alarm signal.
Specifically, described navigation terminal also has the function of detecting obstacles thing.Described detection device specifically may be used
Think infrared facility, ultrasonic unit, it is also possible to for other device, by one or several probe detection
A range of road conditions.In the embodiment of the present application, described detection device is specially supersonic sounding device.
After user opens ultrasonic listening function, user holds described navigation terminal, independently determines detection direction,
As detected the road conditions of dead ahead, underfooting, left and right directions, or oncoming barrier etc..The spy of ultrasound wave
Survey scope is 2cm～5m, and detection accuracy is 5cm.Supersonic sounding device is per second can be completed ten and visit several times
Surveying, detection degree of accuracy is high.
Further, when ultrasonic unit detects barrier in investigative range, sent out by alarm device
Go out alarm signal, to notify the use user of navigation terminal.Described alarm device specifically can be reported by output
Alert audio frequency is reported to the police, or is reported to the police by vibrations, it is also possible to remind user by other means.In this Shen
Please be in embodiment, described alarm device is specially audio output device, and described alarm signal is specially alarm sound
Frequently signal, described processor distance based on described barrier Yu the spacing of described navigation terminal, adjust institute
State audio output device and export the tone height of described alert audio signal.
Specifically, in order to allow users to understand the distance between barrier and current location, by difference
Tone make a distinction.For example, scope can be divided according to the detection range of supersonic sounding device.
If supersonic sounding device is in the range of 2cm～5m, can 10cm be often a scope, each scope pair
Should a kind of tone.Due to obstacle distance, user is the nearest, and user is more susceptible to the collision with barrier, because of
This can use higher tone.Tone such as 2cm～12cm is the highest, and the tone of 13cm～23cm takes second place,
By that analogy.It is of course also possible to every 20cm, every 50cm are a scope, the application is not specifically limited.
Except tone, it is also possible to being distinguished by tone color or different warning the tinkle of bells, those skilled in the art can basis
It is actually needed and is configured.
Further, when after detection to the distance between barrier and navigation terminal, described voice
Described range information can be changed into audio-frequency information and export, so that user accurately grasps by processing unit
Distance away from barrier.
Further, described navigation terminal also includes power module, carries for described processor, detection device etc.
For required electric energy.
Embodiment two
Navigation terminal in the application can be widely used in multiple fields, such as geodata mapping, vehicle
The field such as monitoring and scheduling, guide.Below, apply by navigation terminal and illustrate as a example by guide field.
Concrete, when navigation terminal is applied in guide field, described navigation terminal is specially a guide terminal.
In the embodiment of the present application, described guide terminal is specially a handheld device, and profile can be cylindric,
Or other shapes.For the ease of the visually impaired person operation to described guide terminal, described guide terminal sets
It is equipped with physical button.The setting of button can be arranged according to actual needs, and the application is not particularly limited.?
In the embodiment of the present application, as a example by arranging three physical button, as it is shown on figure 3, three physical button are respectively
For power key 31, detection button 32, location button 33.Further, described guide terminal also sets up
There is a warning lamp 34, for warning people or the car of surrounding.
Further, as shown in Figure 4, described guide terminal specifically includes power subsystem 41, communication unit
42, positioning unit 43, processor 44, detect device 45.Wherein, described power subsystem 41 is for fixed
Bit location 43, processor 44, detection device 45 provides required electric energy.
When visually impaired person uses described guide terminal, press power key 31, open described guide terminal.
When visually impaired person needs to position, press location button 33.On the one hand guide terminal receives from north
The framing signal of bucket satellite, is resolved described framing signal by positioning unit 43, it is thus achieved that resolve knot
Really；On the other hand by communication unit 42 receive from base station correction signal.Described processor 44
Based on calculation result and correction signal, obtain revised current position determination data, the essence of these location data
Degree is sub-meter grade.It follows that communication unit 42 will work as prelocalization by wireless network or mobile data network
Data send to navigation platform, and navigation platform obtains the current location of guide terminal according to current position determination data,
And current location is fed back to guide terminal.
Further, described guide terminal also includes Audio Processing Unit 46, output unit 47.In guide
When terminal receives the current location that navigation platform sends, current location is changed into by Audio Processing Unit 46
Voice signal, is exported by output unit 47.Wherein, output unit 47 can be speaker, indigo plant
Tooth earphone etc..Video obstacle person is just appreciated that by the voice signal of output and is presently in position.
Visually impaired person can also understand current road conditions by pressing detection button 32.Concrete, visit
Surveying device can be infrared facility, and ultrasonic unit, it is also possible to for other device, by one or several
The a range of road conditions of probe detection.In the embodiment of the present application, described detection device is specially ultrasound wave
Detection device.After opening ultrasonic listening function, visually impaired person holds described guide terminal, independently determines
Determine detection direction, as detected dead ahead, underfooting, the road conditions of left and right directions, or oncoming barrier etc..
The investigative range of ultrasound wave is 2cm～5m, and detection accuracy is 5cm.Supersonic sounding device is per second can be complete
Becoming ten to detect several times, detection degree of accuracy is high.
Further, when ultrasonic unit detects barrier in investigative range, by output unit 47
Send alarm signal, use the visually impaired person of guide terminal with notice.Specifically, in order to make vision hinder
The person of hindering will appreciate that the distance between barrier and current location, processor can be to alarm signal at
Reason, makes a distinction by exporting different tones.For example, can be according to supersonic sounding device
Detection range divides scope.If supersonic sounding device is in the range of 2cm～5m, can 10cm be often one
Individual scope, each scope correspondence one tone.Owing to obstacle distance visually impaired person is the nearest, visual disorder
Person is more susceptible to the collision with barrier, therefore can use higher tone.Sound such as 2cm～12cm
Adjusting the highest, the tone of 13cm～23cm takes second place, by that analogy.So, visually impaired person can be by raising one's voice
The distance of the tonal variations Trend judgement barrier of device or bluetooth earphone output and approximate range.Certainly, it is possible to
Being a scope with every 20cm, every 50cm, the application is not specifically limited.Except tone, it is also possible to logical
Cross tone color or different warning the tinkle of bells is distinguished, or directly pass through the range information that visually impaired person is concrete.
Those skilled in the art can be configured according to actual needs.
Certainly, visually impaired person can obtain route guidance by guide terminal.Concrete, visually impaired person
Saying the title of destination, the voice messaging received is processed by Audio Processing Unit, and process is tied
Fruit sends to navigation platform.Navigation platform determines the present bit of guide terminal according to revised location data
Put, and determine destination locations according to the result of Audio Processing Unit.Based on current location and purpose position
Put in pre-stored data storehouse, determine best route, and the navigation information of this route is fed back to guide terminal.
Navigation information is changed into voice signal by the Audio Processing Unit of guide terminal, by bluetooth earphone or speaker
Export, so that visually impaired person is carried out route guidance.
Said one in the embodiment of the present application or multiple technical scheme, at least have one or more skills following
Art effect:
One, the navigation terminal in the embodiment of the present application is when positioning, by antenna and satellite signal receiving
Unit receives the framing signal from aeronautical satellite, due to satellite clock correction, atmospheric ionized layer, tropospheric refraction
Etc. the factor impact on satellite-signal, there is certain error in the framing signal causing navigation terminal to receive.
Navigation terminal in the embodiment of the present application receives the correction signal from base station by antenna and communication unit,
Satellite-signal is modified, above-mentioned error is reduced or eliminated, improve the precision of location so that navigation terminal
Obtain current location accurately.Visible, in the embodiment of the present application, the method by using Differential positioning achieves
The hi-Fix of navigation terminal, and Differential positioning realization is simple, it is possible to it is widely used, and in prior art
Static Precise Point Positioning use just for scientific research, therefore, the scheme in the embodiment of the present application efficiently solves existing
Have in technology and there is usual device terminal and cannot realize the technical problem of hi-Fix, it is achieved that general
Logical electronic device terminal carries out the technique effect of hi-Fix.
Two, the navigation terminal in the embodiment of the present application is by receiving correction signal and the employing of base station transmission
The mode of Differential positioning obtains the location data of sub-meter grade, it is achieved that hi-Fix, owing to using difference
The expense of location is relatively low, it is achieved that reduce the technical problem of hi-Fix cost.
Three, the navigation terminal in the embodiment of the present application is when receiving the navigation requests of user, for positioning number
Process to navigation platform according to sending, i.e. navigation terminal in the embodiment of the present application has powerful rear number of units
According to support, it is possible to preferably adapt to day by day complicated road conditions, and more accurate navigation results can be obtained.
Four, the navigation terminal in the embodiment of the present application is provided with alarm device, when navigation terminal detects in advance
When there is barrier in determining investigative range, it is possible to adjust report based on the distance between barrier and navigation terminal
The tone height of alert audio signal.As when barrier farther out time, tone is relatively low, when barrier is nearer, sound
Increase height, to point out the user of navigation terminal.And prior art generally uses the mode of vibrations remind use
Family, but owing to vibrations power is difficult to divide, and user is the most different to the sensitivity of vibrations, therefore can go out
Now correctly perception cannot shake strong and weak problem, and then the distance of obstacle distance navigation terminal cannot be determined.
Visible, scheme in the embodiment of the present application achieves the user of navigation terminal can accurately determine distance barrier
The technique effect of distance.
Although having been described for preferred embodiment of the present utility model, but those skilled in the art once learning
Basic creative concept, then can make other change and amendment to these embodiments.So, appended power
Profit requires to be intended to be construed to include preferred embodiment and fall into all changes of this utility model scope and repair
Change.
Obviously, those skilled in the art this utility model can be carried out various change and modification without deviating from
Spirit and scope of the present utility model.So, if these amendments of the present utility model and modification belong to this reality
Within the scope of novel claim and equivalent technologies thereof, then this utility model is also intended to comprise these changes
With including modification.
Claims (9)
1. a navigation terminal, including:
Antenna；
Communication unit, is connected with described antenna, for being communicated with base station by described antenna；
Satellite signal receiving unit, is connected with described antenna；
Output unit；
Location navigation unit, connects with described communication unit, described satellite signal receiving unit and described output unit；
Wherein, described location navigation unit receives the framing signal from aeronautical satellite by described antenna and described satellite signal receiving unit, and receive the correction signal from described base station by described antenna and described communication unit, and determine the current location of described navigation terminal based on described framing signal and described correction signal；And the described current location of described output unit output.
2. navigation terminal as claimed in claim 1, it is characterised in that described antenna and described satellite signal receiving unit are for receiving and presetting the described framing signal that frequency matches.
3. navigation terminal as claimed in claim 2, it is characterised in that described location navigation unit includes:
Differential positioning module, is used for resolving described framing signal, it is thus achieved that calculation result；
Processor, for based on described calculation result and described correction signal, determines the current position determination data of described navigation terminal, and wherein, the precision of described current position determination data is sub-meter grade.
4. navigation terminal as claimed in claim 3, it is characterised in that described current position determination data is sent to navigation platform by described communication unit by described antenna, and receives the described current location that described navigation platform obtains based on described current position determination data.
5. navigation terminal as claimed in claim 4, it is characterized in that, when described navigation terminal receives route guidance request, described communication unit and described antenna receive the navigation data corresponding with the guidance path from described current location to destination locations from described navigation platform；Described output unit is used for exporting described navigation data.
6. navigation terminal as claimed in claim 5, it is characterised in that described navigation terminal also includes:
Audio Processing Unit, is connected with described output unit, and for described current location and/or described navigation data are converted into voice signal, described output unit is used for exporting described voice signal.
7. the navigation terminal as described in claim arbitrary in claim 3-6, it is characterised in that described navigation terminal also includes:
Whether detection device, exist barrier in detection one predetermined investigative range；
Alarm device, for when described detection device detects described barrier, sends alarm signal.
8. navigation terminal as claimed in claim 7, it is characterized in that, described alarm device is specially audio output device, described alarm signal is specially alert audio signal, described processor distance based on described barrier Yu the spacing of described navigation terminal, adjusts described audio output device and exports the tone height of described alert audio signal.
9. navigation terminal as claimed in claim 7, it is characterised in that described detection device is specially supersonic sounding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520895476.6U CN205594166U (en) | 2015-11-11 | 2015-11-11 | Navigation terminal |
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|---|---|---|---|
| CN201520895476.6U CN205594166U (en) | 2015-11-11 | 2015-11-11 | Navigation terminal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011725A (en) * | 2019-05-07 | 2019-07-12 | 中国人民解放军32039部队 | Repeater satellite tracking and device |
| CN113900132A (en) * | 2021-09-16 | 2022-01-07 | 北京百度网讯科技有限公司 | Positioning method and device, vehicle-mounted equipment, terminal equipment and positioning system |
-
2015
- 2015-11-11 CN CN201520895476.6U patent/CN205594166U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110011725A (en) * | 2019-05-07 | 2019-07-12 | 中国人民解放军32039部队 | Repeater satellite tracking and device |
| CN113900132A (en) * | 2021-09-16 | 2022-01-07 | 北京百度网讯科技有限公司 | Positioning method and device, vehicle-mounted equipment, terminal equipment and positioning system |
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