CA2649110A1 - Positional information providing system, positional information providing apparatus and transmitter - Google Patents
Positional information providing system, positional information providing apparatus and transmitter Download PDFInfo
- Publication number
- CA2649110A1 CA2649110A1 CA002649110A CA2649110A CA2649110A1 CA 2649110 A1 CA2649110 A1 CA 2649110A1 CA 002649110 A CA002649110 A CA 002649110A CA 2649110 A CA2649110 A CA 2649110A CA 2649110 A1 CA2649110 A1 CA 2649110A1
- Authority
- CA
- Canada
- Prior art keywords
- positional information
- positional
- unit
- signal
- information providing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/20—Instruments for performing navigational calculations
- G01C21/206—Instruments for performing navigational calculations specially adapted for indoor navigation
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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
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
- G01S19/11—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters
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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
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
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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
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
To provide positional information at a place where no radio waves reach. The process executed by a positional information providing apparatus comprises a step of acquiring a received position determination signal (S610); a step of determining the source of transmitting the position determination signal (S612); a step of acquiring a navigation message included in the position determination signal (S622) when the source of transmitting the position determination signal exists outdoors; a step of executing a processing for calculating, based on the signal of the immediately preceding step, the position (S624); a step of acquiring a message data from the position determination signal (S630) when the source of transmitting the position determination signal exists indoors; a step of acquiring coordinate values from the data (S632); and a step of displaying, based on the coordinate values, the positional information (S650).
Claims (20)
1. A positional information providing system capable of providing positional information using first positioning signals as spread spectrum signals from a plurality of satellites, comprising:
an indoor transmitter (200-1), said indoor transmitter including a first storage unit (240) storing positional data for specifying a location where said indoor transmitter is installed, a generating unit (210) generating a second positioning signal having said positional data as a spread spectrum signal, and a transmitting unit (292) transmitting said spread spectrum signal; and a positional information providing apparatus (100), said positional information providing apparatus including a receiving unit (402) receiving the spread spectrum signal, a second storage unit (420) storing code patterns related to said first and second positioning signals, a specifying unit (412) specifying, based on the code pattern stored in said second storage, a code pattern corresponding to the spread spectrum signal received by said receiving unit, a determining unit (316) determining which of said first and second positioning signals has been received, based on a signal obtained by demodulation using the code pattern specified by said specifying unit, a positional information calculating unit (430) calculating positional information of said positional information providing apparatus by switching a process dependent on the result of said determination, and an output unit (440) outputting the positional information derived by said positional information calculating unit; wherein said positional information calculating unit obtains said positional data from said signal obtained by demodulation, when said second positioning signal transmitted by said indoor transmitter is received, and calculates said positional information based on each of said plurality of spread spectrum signals when a plurality of said first positioning signals are received.
an indoor transmitter (200-1), said indoor transmitter including a first storage unit (240) storing positional data for specifying a location where said indoor transmitter is installed, a generating unit (210) generating a second positioning signal having said positional data as a spread spectrum signal, and a transmitting unit (292) transmitting said spread spectrum signal; and a positional information providing apparatus (100), said positional information providing apparatus including a receiving unit (402) receiving the spread spectrum signal, a second storage unit (420) storing code patterns related to said first and second positioning signals, a specifying unit (412) specifying, based on the code pattern stored in said second storage, a code pattern corresponding to the spread spectrum signal received by said receiving unit, a determining unit (316) determining which of said first and second positioning signals has been received, based on a signal obtained by demodulation using the code pattern specified by said specifying unit, a positional information calculating unit (430) calculating positional information of said positional information providing apparatus by switching a process dependent on the result of said determination, and an output unit (440) outputting the positional information derived by said positional information calculating unit; wherein said positional information calculating unit obtains said positional data from said signal obtained by demodulation, when said second positioning signal transmitted by said indoor transmitter is received, and calculates said positional information based on each of said plurality of spread spectrum signals when a plurality of said first positioning signals are received.
2. The positional information providing system according to claim 1, wherein said positional information calculating unit obtains said positional data from said signal obtained by demodulation when said second positional signal transmitted by a single said indoor transmitter is received.
3. The positional information providing system according to claim 1, wherein time kept by a first clock device of each of said satellites for generating time information included in said first positioning signal from said satellite is independent from time kept by a second clock device in said indoor transmitter.
4. The positional information providing system according to claim 1, wherein said second positioning signal has a format common to that of said first positioning signal and includes said positional data in place of a navigation message included in said first positioning signal; and said positional information calculating unit of said positional information providing apparatus includes a calculating unit calculating a position of said positional information providing apparatus based on each said navigation message when a plurality of said first positioning signals are received.
5. The positional information providing system according to claim 1, wherein said positional data is data directly indicating position of said indoor transmitter solely by said positional data; and said output unit outputs said positional information derived solely from said positional data as an image representing a measured position.
6. The positional information providing apparatus according to claim 1, wherein said positional data includes either coordinate values on the ground of said indoor transmitter or data representing a location where said indoor transmitter is installed.
7. The positional information providing system according to claim 1, wherein said specifying unit includes a plurality of correlators, said plurality of correlators provided common to said first and second positioning signals and executing correlating process between said plurality of code patterns and said spread spectrum signals in parallel to each other for specifying said code pattern; and said positional information calculating unit switches said process in accordance with the result of determination based on outputs from said plurality of correlators.
8. The positional information providing system according to claim 1, wherein said coded positional signal has central frequency of 1575.42 MHz; and the spreading frequency of said positioning signal is 1.023 MHz.
9. A positional information providing apparatus (100) for providing positional information, using first positioning signals as spread spectrum signals from a plurality of satellites and a second positioning signal emitted by an indoor transmitter installed at a location specified in advance and including positional data for specifying said location, comprising:
a receiving unit (402) receiving a spread spectrum signal;
a storage unit (420) storing code patterns related to said first and second positioning signals;
a specifying unit (412) for specifying a code pattern corresponding to the spread spectrum signal received by said receiving unit based on a code pattern stored in said storage;
a determining unit (316) determining which of said first and second positioning signals has been received based on a signal obtained by demodulation using the code pattern specified by said specifying unit;
a positional information calculating unit (430) calculating positional information of said positional information providing apparatus by switching a process dependent on the result of said determination; and an output unit (440) outputting the positional information derived by said positional information calculating unit; wherein said positional information calculating unit obtains said positional data from said signal obtained by demodulation, when said second positioning signal transmitted by said indoor transmitter is received, and calculates said positional information based on each of said plurality of spread spectrum signals when a plurality of said first positioning signals are received.
a receiving unit (402) receiving a spread spectrum signal;
a storage unit (420) storing code patterns related to said first and second positioning signals;
a specifying unit (412) for specifying a code pattern corresponding to the spread spectrum signal received by said receiving unit based on a code pattern stored in said storage;
a determining unit (316) determining which of said first and second positioning signals has been received based on a signal obtained by demodulation using the code pattern specified by said specifying unit;
a positional information calculating unit (430) calculating positional information of said positional information providing apparatus by switching a process dependent on the result of said determination; and an output unit (440) outputting the positional information derived by said positional information calculating unit; wherein said positional information calculating unit obtains said positional data from said signal obtained by demodulation, when said second positioning signal transmitted by said indoor transmitter is received, and calculates said positional information based on each of said plurality of spread spectrum signals when a plurality of said first positioning signals are received.
10. The positional information providing apparatus according to claim 9, wherein said positional information calculating unit obtains said positional data from said signal obtained by demodulation when said second positional signal transmitted by a single said indoor transmitter is received.
11. The positional information providing apparatus according to claim 9, wherein said second positioning signal has a format common to that of said first positioning signal and includes said positional data in place of a navigation message included in said first positioning signal; and said positional information calculating unit of said positional information providing apparatus further includes a calculating unit calculating a position of said positional information providing apparatus, based on each said navigation message, when a plurality of said first positioning signals are received.
12. The positional information providing apparatus according to claim 9, wherein said positional data is data directly indicating a position of said indoor transmitter solely by said positional data; and said output unit outputs said positional information derived solely from said positional data as an image representing a measured position.
13. The positional information providing apparatus according to claim 9, wherein said positional data includes information representing a location where said indoor transmitter is installed; and said output unit includes a display unit displaying the location where said indoor transmitter is installed based on said information.
14. The positional information providing apparatus according to claim 9, wherein said specifying unit includes a plurality of correlators, said plurality of correlators being provided common to said first and second positioning signals and executing correlating process between said plurality of code patterns and said spread spectrum signals in parallel to each other for specifying said code pattern; and said positional information calculating unit switches said process in accordance with the result of determination based on outputs from said plurality of correlators.
15. The positional information providing apparatus according to claim 9, wherein said receiving unit receives each of said first positioning signals emitted from transmitters each installed at each of a plurality of locations specified in advance;
said positional information providing apparatus further comprising a detecting unit detecting intensity of a signal received by said receiving unit;
wherein said obtaining unit specifies, among said first positioning signals, a first positioning signal of which said intensity is the highest, and obtains positional data included in the specified first positioning signal.
said positional information providing apparatus further comprising a detecting unit detecting intensity of a signal received by said receiving unit;
wherein said obtaining unit specifies, among said first positioning signals, a first positioning signal of which said intensity is the highest, and obtains positional data included in the specified first positioning signal.
16. The positional information providing apparatus according to claim 9, wherein said positional data includes an identification data for identifying said transmitter;
said positional information providing apparatus comprising:
a transmitting unit transmitting, when said first positioning signal is received, said identification data and a transmission request for positional information of said transmitter through a communication line, to a server that provides positional information in response to an external request, said positional information and said identification data being stored in relation to each other in said server; and an input unit receiving an input of said positional information transmitted by said server in response to said transmission request through said communication line;
wherein said output unit includes a display unit for displaying said positional information.
said positional information providing apparatus comprising:
a transmitting unit transmitting, when said first positioning signal is received, said identification data and a transmission request for positional information of said transmitter through a communication line, to a server that provides positional information in response to an external request, said positional information and said identification data being stored in relation to each other in said server; and an input unit receiving an input of said positional information transmitted by said server in response to said transmission request through said communication line;
wherein said output unit includes a display unit for displaying said positional information.
17. The positional information providing apparatus according to claim 9, comprising any of a portable telephone, a portable information terminal, a portable positioning apparatus, and a positioning system installed in a vehicle.
18. An indoor transmitter (200-1) transmitting a signal of the same format as a first positioning signal emitted by a satellite transmitting a signal for positioning, comprising:
a storage unit (240) storing positional data for specifying a location where said indoor transmitter is installed; and a generating unit (210) generating a second positioning signal having said positional data as a spread spectrum signal, said generating unit generating said second positioning signal as a spread spectrum signal having said positional data in place of a navigation message included in said first positioning signal and allowing specification of said location by the signal from a single said indoor transmitter; and a transmitting unit (292) transmitting said spread spectrum signal.
a storage unit (240) storing positional data for specifying a location where said indoor transmitter is installed; and a generating unit (210) generating a second positioning signal having said positional data as a spread spectrum signal, said generating unit generating said second positioning signal as a spread spectrum signal having said positional data in place of a navigation message included in said first positioning signal and allowing specification of said location by the signal from a single said indoor transmitter; and a transmitting unit (292) transmitting said spread spectrum signal.
19. The indoor transmitter according to claim 18, wherein time kept by a first clock device of each of said satellites for generating time information included in said first positioning signal from said satellite is independent from time kept by a second clock device in said indoor transmitter.
20. The indoor transmitter according to claim 19, wherein said positional data includes either coordinate values on the ground of said indoor transmitter or data representing a location where said indoor transmitter is installed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006103213A JP4296302B2 (en) | 2006-04-04 | 2006-04-04 | Position information providing system and mobile phone |
| JP2006-103213 | 2006-04-04 | ||
| PCT/JP2007/057384 WO2007119645A1 (en) | 2006-04-04 | 2007-04-02 | Positional information providing system, positional information providing apparatus and transmitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2649110A1 true CA2649110A1 (en) | 2007-10-25 |
| CA2649110C CA2649110C (en) | 2012-08-28 |
Family
ID=38609409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2649110A Active CA2649110C (en) | 2006-04-04 | 2007-04-02 | Positional information providing system, positional information providing apparatus and transmitter |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US7948437B2 (en) |
| EP (2) | EP2012136B1 (en) |
| JP (1) | JP4296302B2 (en) |
| KR (1) | KR101044215B1 (en) |
| CN (1) | CN101438185B (en) |
| AU (1) | AU2007239793B2 (en) |
| BR (1) | BRPI0710046A2 (en) |
| CA (1) | CA2649110C (en) |
| CY (2) | CY1114119T1 (en) |
| DK (2) | DK2487508T3 (en) |
| ES (2) | ES2425760T3 (en) |
| MX (1) | MX2008012148A (en) |
| MY (1) | MY146374A (en) |
| NO (1) | NO341309B1 (en) |
| NZ (1) | NZ572330A (en) |
| PL (2) | PL2012136T3 (en) |
| PT (2) | PT2487508E (en) |
| RU (1) | RU2440590C2 (en) |
| SI (2) | SI2487508T1 (en) |
| TW (1) | TW200821614A (en) |
| WO (1) | WO2007119645A1 (en) |
| ZA (1) | ZA200809138B (en) |
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| RU2507540C2 (en) * | 2007-11-30 | 2014-02-20 | ДжиЭнЭсЭс ТЕКНОЛОДЖИЗ ИНК. | Indoor installation transmitter for position information providing system and method of providing position information |
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