CN104464355A - Automatic station report system and method based on GPS - Google Patents
Automatic station report system and method based on GPS Download PDFInfo
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- CN104464355A CN104464355A CN201410791833.4A CN201410791833A CN104464355A CN 104464355 A CN104464355 A CN 104464355A CN 201410791833 A CN201410791833 A CN 201410791833A CN 104464355 A CN104464355 A CN 104464355A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention relates to an automatic station report system based on GPS, and an automatic station report method using the system. The method includes the steps that (S1) a mobile terminal device is started, the automatic station report system is started, and station report parameters are set through a setting unit; (S2) a GPS positioning unit receives GPS signals positioned through a satellite, and GPS longitude and latitude information of a current position is obtained through calculation; (S3) a terminal control unit outputs a station report instruction according to a comparison result between the current position and a destination position; (S4) a station report output unit receives the station report instruction and outputs station report information to prompt users. According to the system and method, positioning and comparison are completed by means of free GPS information, when the users are close to a destination, the mobile terminal device pauses current operation to finish station report preferentially and remind the users in time, and the system and method have the advantages that use is convenient and easy, traffic is not involved, and power consumption of the terminal device is low.
Description
Technical field
The present invention relates to a kind of automatic station name announcing system and method, specifically refer to a kind of automatic station name announcing system based on GPS and the method that are applied to mobile terminal device.
Background technology
Nowadays information society, various information is covered the sky and the earth, people making full use of that various chip time carries out learning, amusement, work etc.Such as people take bus or subway time, usually very attentively to listen to the music, while read newspaper.But owing to having on earphone, therefore often can not hear clearly or can't hear the sound and go past one's station and miss the time getting off of calling out the stops; Or people are because carefully listen information of calling out the stops each time, and cannot divert one's attention to do other things.
Because the mode of calling out the stops generally used at present for all passengers, and can only can not provide personal characteristic service.Further, particularly bus call out the stops by driver master worker Non-follow control, such manual operation not only makes the work quantitative change of driver large, station must be met to report, can not provide the service of calling out the stops of differentiation for single passenger, and manual operation very easily causes error of calling out the stops, and causes misleading.
Some used in the market common navigation systems, wherein some also has function of calling out the stops, and has the diversified technical approach realizing location.That wherein locates based on mobile phone realization all relates to GPS(Global Positioning System, GPS), by GPS receiving satellite signal, the DSP(Digital Signal Processor of mobile phone baseband, digital signal processor) follow the longitude and latitude calculating current location according to satellite-signal, by GPRS(general packet radio service, General Packet Radio Service) flow download map, thus on GPS map, show the coordinate of current location, or the motion track according to mobile phone shows motion track always, to upgrade current location constantly.In the process, the map on mobile phone must be kept to open, period DSP operand is large, and equipment power dissipation is large always.If map has renewal, also need keep GPRS data can upgrade map, relate to traffic consumes, system architecture general thus cannot meet only obtain GPS information but not needs navigate actual needs.
That is, the navigational system with function of calling out the stops generally used at present, all need to relate to GPRS flow and map resource (map server), this just relates to charging problem, causes systems development process complicated.
Chinese patent application 200810070633.4 discloses a kind of method being realized position enquiring by GPS mobile phone, but the method also needs address translation server in implementation procedure, and pass through GPRS network, user is told by Query Result, whole side's ratio juris more complicated, and relate to the flow charging problem of GPRS.
Based on above-mentioned, need badly at present and propose a kind of automatic station name announcing system based on GPS and method, navigation feature is not provided while acquisition GPS information, therefore while not relating to GPRS flow charging, and personalized function of calling out the stops can be provided, to stand under timely reminding user for each mobile phone users.
Summary of the invention
The object of the present invention is to provide a kind of automatic station name announcing system based on GPS and method, utilize free GPS information complete location and compare, when close to destination, mobile terminal device suspends current operation and calls out the stops preferentially to complete, timely reminding user; Have convenient and simple easy-to-use, do not relate to flow, the feature that terminal device is low in energy consumption.
In order to achieve the above object, the invention provides a kind of automatic station name announcing system based on GPS, it is arranged on the mobile terminal device, comprises: GPS positioning unit, receives the gps signal through satnav and calculates the GPS latitude and longitude information of current location; Setting unit, is arranged and coordinate information, the compare threshold of storage purpose position and mode of calling out the stops; Terminal Control Element, is connected with described GPS positioning unit and setting unit, according to the comparative result between current location and destination locations, exports instruction of calling out the stops; To call out the stops output unit, be connected with described Terminal Control Element, receive the instruction export and call out the stops information to point out user of calling out the stops.
The described automatic station name announcing system based on GPS, also comprises: Power Management Unit, is connected respectively, provides working power with described Terminal Control Element and GPS positioning unit.
Described GPS positioning unit comprises: gps signal receiver module, receives and mates the gps signal through satnav; Gps signal processing module, is connected with described gps signal receiver module, carries out filter amplifying processing to the gps signal received; Gps signal computing module, is connected with described gps signal processing module, calculates the gps signal after process and obtains the GPS latitude and longitude information of current location.
Described gps signal receiver module comprises: gps antenna, receives the gps signal through satnav; Antenna-matching circuit, is connected with described gps antenna, mates the gps signal received.
Described gps signal processing module comprises: a GPS receives SAW filter, is connected with described antenna-matching circuit, carries out first order filtering to the gps signal after coupling; GPS low noise amplifier, receives SAW filter with a described GPS and is connected, carry out low noise amplification to the filtered gps signal of one-level; 2nd GPS receives SAW filter, is connected with described GPS low noise amplifier and gps signal computing module, and the gps signal after amplifying low noise carries out second level filtering, and the gps signal completing filtering process is transferred to gps signal computing module.
Described Terminal Control Element comprises: DSP unit, with described gps signal computing module and arrange model calling, receives the GPS latitude and longitude information of current location, is converted into the coordinate information of current location; And the coordinate information of the coordinate information of this current location with the destination locations arranged by setting unit is compared, calculate the distance between current location and destination; When distance between current location and destination is less than or equal to compare threshold, export instruction of calling out the stops; GPS driving control unit, is connected with described gps signal computing module, the startup of control GPS positioning unit, stopping or dormancy.
Described output unit of calling out the stops comprises: horn module, is connected with described DSP unit, receives call out the stops instruction output audio information and arrives at a station to point out user; Motor module, is connected with described DSP unit, and receiving calls out the stops instruction and export vibration information arrives at a station to point out user.
The present invention also provides a kind of automatic reporting station method based on GPS, specifically comprises following steps:
S1, open mobile terminal device, open the automatic station name announcing system based on GPS be arranged on this mobile terminal device, parameter of calling out the stops is set by setting unit;
S2, GPS positioning unit receives the gps signal through satnav, and calculates the GPS latitude and longitude information of mobile terminal device current location;
S3, Terminal Control Element, according to the comparative result between current location and destination locations, export instruction of calling out the stops;
S4, output unit of calling out the stops receive call out the stops instruction and export call out the stops information to point out user.
Described S1 comprises following steps:
The automatic station name announcing system based on GPS that S11, unlatching are arranged on this mobile terminal device, Power Management Unit provides working power;
S12, user select whether to reset parameter of calling out the stops by setting unit; In this way, then continue to perform S14; As no, then continue to perform S13;
S13, user select whether adopt history default parameters to carry out destination by setting unit and call out the stops; In this way, then continue to perform S2; As no, then return and perform S12;
S14, user start calibration of calling out the stops, and current position is set to destination locations, and continue to perform S2.
Described S14 comprises following steps:
S141, user arrive the position that will be set to destination, and GPS driving control unit control GPS positioning unit starts, and make GPS positioning unit receive the gps signal through satnav and calculate the GPS latitude and longitude information of current location;
S142, DSP unit receives the GPS latitude and longitude information of current location, and be converted into the coordinate information of current location, the coordinate information of this current location is recorded as destination coordinate information and preserves by setting unit;
S143, user set compare threshold by setting unit;
S144, user set by setting unit mode of calling out the stops.
Described S2 comprises following steps:
S21, GPS driving control unit control GPS positioning unit starts;
S22, gps antenna receive the gps signal through the current location of satnav;
S23, antenna-matching circuit mate the gps signal received;
S24, a GPS receive SAW filter and carry out first order filtering to the gps signal after coupling;
S25, GPS low noise amplifier carries out low noise amplification to the filtered gps signal of one-level;
S26, the 2nd GPS receive SAW filter and carry out second level filtering to the gps signal after low noise amplification;
S27, gps signal computing module calculate the gps signal after secondary filter, obtain the GPS latitude and longitude information of current location.
Described S3 comprises following steps:
S31, DSP unit receives the GPS latitude and longitude information of current location, is converted into the coordinate information of current location;
The coordinate information of the coordinate information of current location with the destination locations arranged by setting unit compares by S32, DSP unit, calculates the distance between current location and destination;
Whether the distance between S33, DSP unit judges current location and destination is less than or equal to compare threshold; If so, DSP unit exports instruction of calling out the stops; If not, execution S2 is returned.
In described S4, according to the mode of calling out the stops set by setting unit, receive by horn module call out the stops instruction output audio information to arrive at a station to point out user, or receive by motor module the instruction export vibration information and arrive at a station point out user of calling out the stops, or receive by horn module and motor module instruction of calling out the stops also output audio information and vibration information arrive at a station to point out user respectively simultaneously.
In sum, the automatic station name announcing system based on GPS provided by the present invention and method, embed function of calling out the stops on the mobile terminal device, solve people when using mobile terminal device onboard, without the need to paying close attention to the name of station that often station is reported constantly, as long as user sets destination name of station, just can sleep without any anxiety.When vehicle is to during close to destination, the mode that mobile terminal device can preferentially be set by user is called out the stops.
Simultaneously, automatic station name announcing system based on GPS provided by the present invention and method, be realize based on the intelligent mobile terminal equipment being provided with GPS positioning unit, meeting and only obtain GPS information but the actual needs not needing navigation, is the deeper applied research of GPS navigation.The present invention program is simple, does not produce GPRS data flow, not desirably chart database, and have and be simple and easy to use, save money, convenient, terminal device is low in energy consumption, the feature that exploitation dynamics is little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the automatic station name announcing system based on GPS in the present invention;
Fig. 2 is the process flow diagram of the automatic reporting station method based on GPS in the present invention;
Fig. 3 is the detail flowchart of the automatic reporting station method based on GPS in the present invention;
Fig. 4 is the method flow diagram of the calibration of calling out the stops in the present invention;
Fig. 5 is the method flow diagram of the reception gps signal in the present invention.
Embodiment
Below in conjunction with Fig. 1 ~ Fig. 5, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, for provided by the present invention based on the automatic station name announcing system of GPS, it is arranged on the mobile terminal device, comprises: GPS positioning unit 1, receives the gps signal through satnav and calculates the GPS latitude and longitude information of current location; Setting unit 2, is arranged and coordinate information B, the compare threshold C of storage purpose position and mode of calling out the stops; Terminal Control Element 3, is connected with described GPS positioning unit 1 and setting unit 2, according to the comparative result between current location and destination locations, exports instruction of calling out the stops; To call out the stops output unit 4, be connected with described Terminal Control Element 3, receive the instruction export and call out the stops information to point out user of calling out the stops.
Described mobile terminal device is mobile phone, panel computer or PDA etc.
The described automatic station name announcing system based on GPS, also comprises: Power Management Unit (PMU, Power Management Unit) 5, is connected with described Terminal Control Element 3 and GPS positioning unit 1 respectively, provides working power.
Described GPS positioning unit 1 comprises: gps signal receiver module 11, receives and mates the gps signal through satnav; Gps signal processing module 12, is connected with described gps signal receiver module 11, carries out filter amplifying processing to the gps signal received; Gps signal computing module 13, is connected with described gps signal processing module 12, calculates the gps signal after process and obtains the GPS latitude and longitude information of current location.
Described gps signal receiver module 11 comprises: gps antenna 111, receives the gps signal through satnav; Antenna-matching circuit 112, is connected with described gps antenna 111, mates the gps signal received.
Described gps signal processing module 12 comprises: a GPS receives SAW(surface acoustic wave, Surface Acoustic Wave) wave filter 121, be connected with described antenna-matching circuit 112, first order filtering is carried out to the gps signal after coupling; GPS low noise amplifier (LNA, Low Noise Amplifier) 122, receives SAW filter 121 with a described GPS and is connected, carry out low noise amplification to the filtered gps signal of one-level; 2nd GPS receives SAW filter 123, be connected with described GPS low noise amplifier 122 and gps signal computing module 13, gps signal after amplifying low noise carries out second level filtering, and the gps signal completing filtering process is transferred to gps signal computing module 13.
Described Terminal Control Element 3 comprises: DSP unit 31, with described gps signal computing module 13 and arrange module 2 and be connected, receives the GPS latitude and longitude information of current location, is converted into the coordinate information A of current location; And the coordinate information A of this current location and the coordinate information B of the destination locations arranged by setting unit 2 are compared, calculate the distance D between current location and destination; When distance D between current location and destination is less than or equal to compare threshold C, export instruction of calling out the stops; GPS driving control unit 32, is connected with described gps signal computing module 13, the startup of control GPS positioning unit 1, stopping or dormancy.
In the present embodiment, by I/Q signal interface transmit GPS latitude and longitude information between described gps signal processing module 12 and DSP unit 31.
In the present embodiment, transmit control command between described gps signal processing module 12 and GPS driving control unit 32 by UART interface, control GPS positioning unit 1 starts, stops or dormancy.
Described output unit 4 of calling out the stops comprises: horn module 41, is connected with described DSP unit 31, receives call out the stops instruction output audio information and arrives at a station to point out user; Motor module 42, is connected with described DSP unit 31, and receiving calls out the stops instruction and export vibration information arrives at a station to point out user.
As shown in Figures 2 and 3, the present invention also provides a kind of automatic reporting station method based on GPS, specifically comprises following steps:
S1, open mobile terminal device, open the automatic station name announcing system based on GPS be arranged on this mobile terminal device, parameter of calling out the stops is set by setting unit 2; User can select to listen to the music on the mobile terminal device subsequently, sees video, browses news, play games etc.; As selected not open automatic station name announcing system, then mobile terminal device normally runs;
S2, GPS positioning unit 1 receives the gps signal through satnav, and calculates the GPS latitude and longitude information of mobile terminal device current location;
S3, Terminal Control Element 3, according to the comparative result between current location and destination locations, export instruction of calling out the stops;
S4, output unit 4 of calling out the stops receive call out the stops instruction and export call out the stops information to point out user.
Described S1 comprises following steps:
The automatic station name announcing system based on GPS that S11, unlatching are arranged on this mobile terminal device, Power Management Unit 5 provides working power;
S12, user select whether to reset parameter of calling out the stops by setting unit 2; In this way, then continue to perform S14; As no, then continue to perform S13;
S13, user select whether adopt history default parameters to carry out destination by setting unit 2 and call out the stops; In this way, then continue to perform S2; As no, then return and perform S12;
S14, user start calibration of calling out the stops, and current position is set to destination locations, and continue to perform S2.
As shown in Figure 4, described S14 comprises following steps:
S141, user arrive and will be set to the position of destination, and GPS driving control unit 32 control GPS positioning unit 1 starts, and make GPS positioning unit 1 receive the gps signal through satnav and calculate the GPS latitude and longitude information of current location;
S142, DSP unit 31 receives the GPS latitude and longitude information of current location, is converted into the coordinate information of current location, and the coordinate information of this current location is recorded as destination coordinate information B and preserves by setting unit 2;
S143, user set compare threshold C by setting unit 2; This compare threshold is user's free setting, such as, can be 50M or 100M; When distance between mobile terminal device and set destination is less than or equal to this value, instruction of calling out the stops will be sent and call out the stops; Therefore, the setting of this compare threshold is intended to reminding user and carries out preparation of getting off, and user according to oneself needing the size arranging this compare threshold, freely can facilitate, having human oriented design;
S144, user set by setting unit 2 mode of calling out the stops; Here mode of calling out the stops specifically refers to can be selected to carry out audio alert by horn module 41, also can select to carry out vibrating alert by motor module 42, or carry out audio alert and vibrating alert simultaneously.
The reason can repaired the roads because of various places due to bus platform or bus change its course temporarily, can often change.So when arranging destination, need to change flexibly.Present invention employs the method that destination coordinate information is freely set, need user at destination locations, start calibration of calling out the stops, now can start GPS positioning unit, receive the gps signal through the user position of satnav, and utilize DSP unit to obtain the coordinate information of this position, and this position is recorded as destination coordinate.And when not needing to reset destination, select history default parameters to call out the stops, and flexibly convenient and swift, better user experience.
As shown in Figure 5, described S2 comprises following steps, and it is identical with the specific implementation step of above-mentioned S141:
S21, GPS driving control unit 32 control GPS positioning unit 1 starts;
S22, gps antenna 111 receive the gps signal of the current location through satnav;
S23, antenna-matching circuit 112 mate the gps signal received;
S24, a GPS receive SAW filter 121 and carry out first order filtering to the gps signal after coupling;
S25, GPS low noise amplifier 122 pairs of filtered gps signals of one-level carry out low noise amplification;
Gps signal after S26, the 2nd GPS receive SAW filter 123 pairs of low noises amplifications carries out second level filtering;
Gps signal after S27, gps signal computing module 13 pairs of secondary filters calculates, and obtains the GPS latitude and longitude information of current location.
Described S3 comprises following steps:
S31, DSP unit 31 receives the GPS latitude and longitude information of current location, is converted into the coordinate information A of current location;
The coordinate information A of current location and the coordinate information B of the destination locations arranged by setting unit 2 compare by S32, DSP unit 31, calculate the distance D between current location and destination;
S33, DSP unit 31 judges whether the distance D between current location and destination is less than or equal to compare threshold C; If so, DSP unit 31 exports instruction of calling out the stops; If not, execution S2 is returned.
In described S4, according to the mode of calling out the stops set by setting unit 2, receive by horn module 41 call out the stops instruction output audio information to arrive at a station to point out user, or receive by motor module 42 instruction export vibration information and arrive at a station point out user of calling out the stops, or receive by horn module 41 and motor module 42 instruction of calling out the stops also output audio information and vibration information arrive at a station to point out user respectively simultaneously.Now, if user listens to the music just on the mobile terminal device, see video, browse news, play games etc., will temporarily be interrupted by the information of calling out the stops, to reach the object that reminding user is got off in time.
In sum, the automatic station name announcing system based on GPS provided by the present invention and method, embed function of calling out the stops on the mobile terminal device, solve people when using mobile terminal device onboard, without the need to paying close attention to the name of station that often station is reported constantly, as long as user sets destination name of station, just can sleep without any anxiety.When vehicle is to during close to destination, the mode that mobile terminal device can preferentially be set by user is called out the stops, such as, adopt audio horn to remind or motor vibrations prompting, is about to informing customer objective arrive, please shifts to an earlier date ready getting off.After having called out the stops, the operational mode before continuation has been run by mobile terminal device, such as, continue to play music or display news browsing interface.Call out the stops in process at this, user only can hear in the destination of oneself and call out the stops, and whole calling out the stops is full of hommization experience, and the distance of calling out the stops in advance can by user's free setting.
Simultaneously, automatic station name announcing system based on GPS provided by the present invention and method, realize based on the intelligent mobile terminal equipment being provided with GPS positioning unit, when user starts function of calling out the stops in mobile terminal device operational process, GPS positioning unit works, the gps signal collected is sent to DSP unit and carries out calculation process, obtain current position coordinates A, and the destination coordinate B of this coordinate A and user's setting is compared, if distance is between the two less than or equal to the compare threshold C of user's setting, then carry out prompting of calling out the stops.Therefore, the present invention program is simple, utilize free GPS resource complete location and compare, whole use procedure does not produce GPRS data flow, not desirably chart database, without the need to recording GPS running orbit, without the need to being reported to background data center to realize GPS value-added service GPS information by GPRS function, have and be simple and easy to use, save money, convenient, terminal device is low in energy consumption, the feature that exploitation dynamics is little.
Therefore, the present invention meet only obtain GPS information but do not need navigate actual needs, be the deeper applied research of GPS navigation, although because existing mobile terminal device can obtain the current location information of user, but be only that application surface is narrower for digital map navigation.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (13)
1., based on an automatic station name announcing system of GPS, arrange on the mobile terminal device, it is characterized in that, comprise:
GPS positioning unit (1), receives the gps signal through satnav and calculates the GPS latitude and longitude information of current location;
Setting unit (2), is arranged and coordinate information, the compare threshold of storage purpose position and mode of calling out the stops;
Terminal Control Element (3), is connected with described GPS positioning unit (1) and setting unit (2), according to the comparative result between current location and destination locations, exports instruction of calling out the stops;
To call out the stops output unit (4), be connected with described Terminal Control Element (3), receive the instruction export and call out the stops information to point out user of calling out the stops.
2., as claimed in claim 1 based on the automatic station name announcing system of GPS, it is characterized in that, also comprise Power Management Unit (5), be connected with described Terminal Control Element (3) and GPS positioning unit (1) respectively, working power is provided.
3., as claimed in claim 2 based on the automatic station name announcing system of GPS, it is characterized in that, described GPS positioning unit (1) comprises:
Gps signal receiver module (11), receives and mates the gps signal through satnav;
Gps signal processing module (12), is connected with described gps signal receiver module (11), carries out filter amplifying processing to the gps signal received;
Gps signal computing module (13), is connected with described gps signal processing module (12), calculates the gps signal after process and obtains the GPS latitude and longitude information of current location.
4., as claimed in claim 3 based on the automatic station name announcing system of GPS, it is characterized in that, described gps signal receiver module (11) comprises:
Gps antenna (111), receives the gps signal through satnav;
Antenna-matching circuit (112), is connected with described gps antenna (111), mates the gps signal received.
5., as claimed in claim 4 based on the automatic station name announcing system of GPS, it is characterized in that, described gps signal processing module (12) comprises:
One GPS receives SAW filter (121), is connected with described antenna-matching circuit (112), carries out first order filtering to the gps signal after coupling;
GPS low noise amplifier (122), receives SAW filter (121) with a described GPS and is connected, carry out low noise amplification to the filtered gps signal of one-level;
2nd GPS receives SAW filter (123), be connected with described GPS low noise amplifier (122) and gps signal computing module (13), gps signal after amplifying low noise carries out second level filtering, and the gps signal completing filtering process is transferred to gps signal computing module (13).
6., as claimed in claim 3 based on the automatic station name announcing system of GPS, it is characterized in that, described Terminal Control Element (3) comprises:
DSP unit (31), with described gps signal computing module (13) and arrange module (2) and be connected, receives the GPS latitude and longitude information of current location, is converted into the coordinate information of current location; And the coordinate information A of this current location and the coordinate information of the destination locations arranged by setting unit (2) are compared, calculate the distance between current location and destination; When distance between current location and destination is less than or equal to compare threshold, export instruction of calling out the stops;
GPS driving control unit (32), is connected with described gps signal computing module (13), the startup of control GPS positioning unit (1), stopping or dormancy.
7., as claimed in claim 6 based on the automatic station name announcing system of GPS, it is characterized in that, described output unit of calling out the stops (4) comprises:
Horn module (41), is connected with described DSP unit (31), receives call out the stops instruction output audio information and arrives at a station to point out user;
Motor module (42), is connected with described DSP unit (31), and receiving calls out the stops instruction and export vibration information arrives at a station to point out user.
8. based on an automatic reporting station method of GPS, it is characterized in that, specifically comprise following steps:
S1, open mobile terminal device, open the automatic station name announcing system based on GPS be arranged on this mobile terminal device, parameter of calling out the stops is set by setting unit (2);
S2, GPS positioning unit (1) receives the gps signal through satnav, and calculates the GPS latitude and longitude information of mobile terminal device current location;
S3, Terminal Control Element (3), according to the comparative result between current location and destination locations, export instruction of calling out the stops;
S4, output unit of calling out the stops (4) receive call out the stops instruction and export call out the stops information to point out user.
9., as claimed in claim 8 based on the automatic reporting station method of GPS, it is characterized in that, described S1 comprises following steps:
The automatic station name announcing system based on GPS that S11, unlatching are arranged on this mobile terminal device, Power Management Unit (5) provides working power;
S12, user select whether reset parameter of calling out the stops by setting unit (2); In this way, then continue to perform S14; As no, then continue to perform S13;
S13, user select whether adopt history default parameters to carry out destination by setting unit (2) and call out the stops; In this way, then continue to perform S2; As no, then return and perform S12;
S14, user start calibration of calling out the stops, and current position is set to destination locations, and continue to perform S2.
10., as claimed in claim 9 based on the automatic reporting station method of GPS, it is characterized in that, described S14 comprises following steps:
S141, user arrive the position that will be set to destination, GPS driving control unit (32) control GPS positioning unit (1) starts, and makes GPS positioning unit (1) receive the gps signal through satnav and calculates the GPS latitude and longitude information of current location;
S142, DSP unit (31) receives the GPS latitude and longitude information of current location, and be converted into the coordinate information of current location, the coordinate information of this current location is recorded as destination coordinate information and preserves by setting unit (2);
S143, user are by setting unit (2) setting compare threshold;
S144, user set by setting unit (2) mode of calling out the stops.
11. as claimed in claim 10 based on the automatic reporting station method of GPS, and it is characterized in that, described S2 comprises following steps:
S21, GPS driving control unit (32) control GPS positioning unit (1) starts;
S22, gps antenna (111) receive the gps signal through the current location of satnav;
S23, antenna-matching circuit (112) mate the gps signal received;
S24, a GPS receive SAW filter (121) and carry out first order filtering to the gps signal after coupling;
S25, GPS low noise amplifier (122) carries out low noise amplification to the filtered gps signal of one-level;
S26, the 2nd GPS receive SAW filter (123) and carry out second level filtering to the gps signal after low noise amplification;
S27, gps signal computing module (13) calculate the gps signal after secondary filter, obtain the GPS latitude and longitude information of current location.
12. as claimed in claim 11 based on the automatic reporting station method of GPS, and it is characterized in that, described S3 comprises following steps:
S31, DSP unit (31) receives the GPS latitude and longitude information of current location, is converted into the coordinate information of current location;
The coordinate information of the coordinate information of current location with the destination locations arranged by setting unit (2) compares by S32, DSP unit (31), calculates the distance between current location and destination;
S33, DSP unit (31) judges whether the distance between current location and destination is less than or equal to compare threshold; If so, DSP unit (31) exports instruction of calling out the stops; If not, execution S2 is returned.
13. as claimed in claim 12 based on the automatic reporting station method of GPS, it is characterized in that, in described S4, according to the mode of calling out the stops set by setting unit (2), receive by horn module (41) call out the stops instruction output audio information to arrive at a station to point out user, or receive by motor module (42) instruction export vibration information and arrive at a station point out user of calling out the stops, or receive by horn module (41) and motor module (42) instruction of calling out the stops also output audio information and vibration information arrive at a station to point out user respectively simultaneously.
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