CN110376616B - GNSS and Internet of things wide area signal receiving and data processing method - Google Patents
GNSS and Internet of things wide area signal receiving and data processing method Download PDFInfo
- Publication number
- CN110376616B CN110376616B CN201910779935.7A CN201910779935A CN110376616B CN 110376616 B CN110376616 B CN 110376616B CN 201910779935 A CN201910779935 A CN 201910779935A CN 110376616 B CN110376616 B CN 110376616B
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- CN
- China
- Prior art keywords
- positioning information
- intermediate frequency
- gnss
- groups
- internet
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Classifications
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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
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0863—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving passwords or one-time passwords
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mobile Radio Communication Systems (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims (3)
- The GNSS and Internet of things wide area signal receiving and data processing method is characterized by comprising the following steps:the method comprises the following steps: two groups of signal channels are established between the GNSS and the Internet of things equipment, and a gain amplifier, a digital-to-analog converter and an intermediate frequency signal processing circuit are arranged in the two groups of signal channels; the intermediate frequency signal processing circuit also comprises an intermediate frequency compression circuit, an intermediate frequency data storage circuit, an intermediate frequency data reading circuit and an intermediate frequency data decompression circuit;step two: when receiving a positioning information acquisition request sent by the Internet of things equipment, the GNSS receives the request, and performs encryption conversion on the request to form a password source request; when the GNSS receives a positioning information acquisition request sent by the Internet of things equipment, the request is received through a password converter embedded in the GNSS receiver in advance, and the request is subjected to encryption conversion to form a password source request;step three: the GNSS encrypts the positioning information according to the password source request to obtain encrypted positioning information, and then sends the encrypted positioning information by two groups of radio frequency signals; when the encrypted positioning information is sent by two groups of radio frequency signals, firstly, the positioning information requested by the Internet of things equipment is detected, and whether the quality of the positioning information meets the sending requirement is judged; the positioning information accords with the sending requirement, and the positioning information is encrypted to form encrypted positioning information and then sent by two groups of radio frequency signals; if the positioning information does not meet the sending requirement, despreading, coherent integration and noncoherent integration operation are required to be carried out on the positioning information signals until the positioning information meets the sending requirement, encrypted positioning information is formed, and then the encrypted positioning information is sent by two groups of radio frequency signals;step four: two groups of signal channels are used for respectively receiving two groups of radio frequency signals transmitted by the GNSS, and the radio frequency signals are converted into corresponding intermediate frequency signals by using a gain amplifier and a digital-to-analog converter;step five; the intermediate frequency signals are transmitted and sent by continuously utilizing the two groups of signal channels, and are processed by utilizing an intermediate frequency signal processing circuit in the two groups of signal channels, so that the acquisition, tracking and user position calculation of GNSS emission signals are completed;step six: and receiving the calculation result through an interface circuit of a receiving port of the Internet of things equipment.
- 2. The GNSS and Internet of things wide area signal receiving and data processing method as claimed in claim 1, wherein: in the fourth step, when the digital-to-analog converter is used to convert the radio frequency signal into the corresponding intermediate frequency signal, the digital-to-analog converters in the two groups of signal channels use the same sampling clock.
- 3. The GNSS and Internet of things wide area signal receiving and data processing method as claimed in claim 1, wherein: the concrete process in the step five is as follows: and the intermediate frequency signals are transmitted and sent by continuously utilizing the two groups of signal channels, are processed by utilizing the intermediate frequency signal processing circuit in the two groups of signal channels, and are processed by sequentially passing through the frequency compression circuit, the intermediate frequency data storage circuit, the intermediate frequency data reading circuit and the intermediate frequency data decompression circuit in the intermediate frequency signal processing circuit, so that the acquisition, tracking and user position calculation of the GNSS emission signals are completed.
Priority Applications (1)
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CN201910779935.7A CN110376616B (en) | 2019-08-22 | 2019-08-22 | GNSS and Internet of things wide area signal receiving and data processing method |
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CN201910779935.7A CN110376616B (en) | 2019-08-22 | 2019-08-22 | GNSS and Internet of things wide area signal receiving and data processing method |
Publications (2)
Publication Number | Publication Date |
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CN110376616A CN110376616A (en) | 2019-10-25 |
CN110376616B true CN110376616B (en) | 2022-02-11 |
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CN201910779935.7A Active CN110376616B (en) | 2019-08-22 | 2019-08-22 | GNSS and Internet of things wide area signal receiving and data processing method |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103399329A (en) * | 2013-08-20 | 2013-11-20 | 中国科学院微电子研究所 | GNSS receiver and intermediate frequency data processing method thereof |
CN105988126A (en) * | 2015-02-15 | 2016-10-05 | 潍坊果壳视界信息科技有限公司 | Multi-mode satellite navigation module applied in field of agricultural internet of things |
CN107820253A (en) * | 2016-09-13 | 2018-03-20 | 网络性能研究集团有限责任公司 | Simultaneously using the method and apparatus of multiple channels in dynamic frequency selection frequency range in wireless network |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US10419877B2 (en) * | 2015-10-07 | 2019-09-17 | Samsung Electronics Co., Ltd. | Electronic apparatus and IoT device controlling method thereof |
-
2019
- 2019-08-22 CN CN201910779935.7A patent/CN110376616B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103399329A (en) * | 2013-08-20 | 2013-11-20 | 中国科学院微电子研究所 | GNSS receiver and intermediate frequency data processing method thereof |
CN105988126A (en) * | 2015-02-15 | 2016-10-05 | 潍坊果壳视界信息科技有限公司 | Multi-mode satellite navigation module applied in field of agricultural internet of things |
CN107820253A (en) * | 2016-09-13 | 2018-03-20 | 网络性能研究集团有限责任公司 | Simultaneously using the method and apparatus of multiple channels in dynamic frequency selection frequency range in wireless network |
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Denomination of invention: Wide area signal receiving and data processing method between GNSS and Internet of things Effective date of registration: 20220429 Granted publication date: 20220211 Pledgee: Yingtan industrial control Financing Guarantee Co.,Ltd. Pledgor: JIANGXI WATTECH ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022980005030 |
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Date of cancellation: 20230410 Granted publication date: 20220211 Pledgee: Yingtan industrial control Financing Guarantee Co.,Ltd. Pledgor: JIANGXI WATTECH ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Registration number: Y2022980005030 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |