CN111123314A - Receiver and receiving system - Google Patents
Receiver and receiving system Download PDFInfo
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- CN111123314A CN111123314A CN201811284506.4A CN201811284506A CN111123314A CN 111123314 A CN111123314 A CN 111123314A CN 201811284506 A CN201811284506 A CN 201811284506A CN 111123314 A CN111123314 A CN 111123314A
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- board
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- satellite signal
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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
- G01S19/33—Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
Abstract
The invention is suitable for the technical field of satellite equipment, and provides a receiver and a receiving system, wherein the receiver comprises: the system comprises at least two board cards, a multi-board card manager and a microprocessor; the at least two board cards are used for respectively receiving satellite signal data; the multi-board manager is used for carrying out preference on the at least two boards and obtaining the satellite signal data of the at least two selected boards; the microprocessor is used for transmitting the satellite signal data with preference to a cloud terminal by applying a bandwidth preference algorithm so as to perform further optimization. In the invention, the multi-board manager is used for carrying out the optimization on the board, and a bandwidth optimization algorithm is used for transmitting the optimized satellite signal data to the cloud end for further optimization, thereby improving the high precision and the high reliability of the data.
Description
Technical Field
The invention belongs to the technical field of satellite equipment, and particularly relates to a receiver and a receiving system.
Background
The receivers on the market are mostly isolated entities of a single system and a single board card, are in a disjointed state with the internet, have no concept of big data optimization, and are still in the category of traditional satellite signal processing.
In an existing Global Navigation Satellite System (GNSS) hard solution receiver or a soft solution receiver, functions are mainly focused on a radio frequency unit, a baseband algorithm and other hard solutions, and more attention is paid to processing between the receiver and a Satellite. The individuals are relatively independent and have no connection. Therefore, when a single point of failure occurs in a use scene, hot switching backup is difficult to realize; the data optimization also depends on the self-capability of the receiver, and the data on the other sides cannot be used for optimization and comparison; when the batch individuals run simultaneously, the cluster control and management are difficult to perform; later maintenance is difficult.
The existing GNSS receiver is hard in technical design and implementation, individuals are not connected, mutual backup hot switching cannot be achieved in a key scene, and data optimization mainly depends on the self capacity of the receiver: such as radio frequency, baseband and built-in algorithms; the batch individuals in the same scene cannot realize cluster management and area control, and the fact cost is increased.
Disclosure of Invention
The embodiment of the invention provides a receiver and a receiving system, aiming at solving the problem that the data optimization of the receiver in the prior art mainly depends on the self-capability of the receiver.
A receiver, comprising: the system comprises at least two board cards, a multi-board card manager and a microprocessor;
the at least two board cards are used for respectively receiving satellite signal data;
the multi-board manager is used for carrying out preference on the at least two boards and obtaining the satellite signal data of the at least two selected boards;
the microprocessor is used for transmitting the satellite signal data with preference to a cloud terminal by applying a bandwidth preference algorithm so as to perform further optimization.
Preferably, the receiver further includes a configuration manager configured to configure each board, the multi-board manager, and the network data pump.
Preferably, the board card is one of three types of board cards including a global positioning system board card, a glonass board card and a Beidou satellite navigation system board card.
Preferably, the receiver includes a plurality of different types of boards, and when one type of board fails, the multi-board manager selects another type of board of the same type of signal to receive the satellite signal data.
Preferably, the receiver includes n boards, where n is an integer, and when the board card n-1 fails, the multi-board manager selects the board card n to receive the satellite signal data.
Preferably, a preferential algorithm is built in the board card, and the satellite signal data with high quality are screened in a differentiated mode.
Preferably, the microprocessor includes a network data pump, and the network data pump performs priority ordering on the satellite signal data received by each board card, and transmits the satellite signal data according to the bandwidth condition and the priority.
Preferably, the network data pump prioritizes the satellite signal data of each board according to signal acquisition tracking capability, observation noise, and multipath suppression capability.
The invention also provides a receiving system, which further comprises a receiver, a cloud and a reference station, wherein the receiver receives satellite signal data from the reference station and performs optimized transmission to the cloud, the cloud further optimizes the satellite signal data, and the receiver comprises: the system comprises at least two board cards, a multi-board card manager and a microprocessor;
the at least two board cards are used for respectively receiving satellite signal data;
the multi-board manager is used for carrying out preference on the at least two boards and obtaining the satellite signal data of the at least two selected boards;
the microprocessor is used for transmitting the satellite signal data with preference to a cloud terminal by applying a bandwidth preference algorithm so as to perform further optimization.
In the embodiment of the invention, the multi-board manager is used for carrying out the optimization on the board, and the bandwidth optimization algorithm is used for transmitting the optimized satellite signal data to the cloud end for further optimization, so that the high precision and the high reliability of the data are improved.
Drawings
Fig. 1 is a schematic structural diagram of a receiver according to a first embodiment of the present invention;
fig. 2 is a schematic diagram of a built-in preference algorithm in a board card of a receiver according to a first embodiment of the present invention;
fig. 3 is an operational diagram of a network data pump of the receiver according to the first embodiment of the present invention;
fig. 4 is a schematic diagram of a logging system of a receiver of a first embodiment of the invention;
fig. 5 is a schematic structural diagram of a preferred mode of a receiver according to a first embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a zone control of a receiver according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a receiving system according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In an embodiment of the present invention, a receiver includes: the system comprises at least two board cards, a multi-board card manager and a microprocessor; the at least two board cards are used for respectively receiving satellite signal data; the multi-board manager is used for carrying out preference on the at least two boards and obtaining the satellite signal data of the at least two selected boards; the microprocessor is used for transmitting the satellite signal data with preference to a cloud terminal by applying a bandwidth preference algorithm so as to perform further optimization.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The first embodiment is as follows:
fig. 1 shows a schematic structural diagram of a receiver provided in a first embodiment of the present invention, where the receiver includes: at least two boards 1, a multi-board manager 2, and a microprocessor 3.
The at least two board cards 2 are used for respectively receiving satellite signal data. The board 1 is one of three types of boards, namely, a GLOBAL Positioning System (GPS) board, a glonass (GLOBAL NAVIGATION SATELLITE SYSTEM, GLONASS) board, and a BeiDou NAVIGATION Satellite System (BDS) board. The GPS board card is used for receiving GPS signals, the GLONASS board card is used for receiving GLONASS signals, and the BDS board card is used for receiving BDS signals.
The multi-board manager 2 is configured to preferentially select the at least two boards and obtain the satellite signal data of the at least two selected boards. Specifically, the GPS signal is preferentially selected to be processed by a Novatel board card, the GLONASS signal is preferentially selected to be processed by a Septentrio board card, the BDS signal is preferentially selected to be processed by a core star board card. The multi-board manager 2 is also responsible for automatic identification and function loading of the boards.
In addition, the receiver may include a plurality of different types of boards 1, and when one type of board 1 fails, the multi-board manager 2 selects another type of board 1 for receiving the satellite signal data according to the same type of signal. For example, when the Novatel board fails, the multi-board manager 2 may select a Septentrio board of the same type of signal, and vice versa. The receiver may also include n boards 1, where n is an integer, and when the board 1 n-1 fails, the multi-board manager 2 selects the board 1 n to receive the satellite signal data.
In the embodiment of the invention, the board card 1 is internally provided with a preference algorithm, and the satellite signal data with high quality is screened in a differentiation mode. As shown in fig. 2, the receiver includes a GNSS card I1, a GNSS card I …, a GNSS card II1, a GNSS card II …, a GNSS card III1, and a GNSS card III …, and high-quality satellite signal data are screened out by a built-in preference algorithm and transmitted.
The microprocessor 3 is configured to apply a bandwidth preference algorithm to transmit the preferred satellite signal data to a cloud for further optimization. Specifically, the microprocessor 3 includes a network data pump, and the network data pump performs priority ordering on the satellite signal data received by each board card 1 and transmits the satellite signal data according to the bandwidth condition and the priority. The network data pump prioritizes the satellite signal data of each board card 1 according to signal acquisition and tracking capability, observed value noise and multipath suppression capability, for example, the satellite signal data is respectively sequenced from high to low according to the priority as A, B, C. And when the bandwidth in the scene is limited, the transmission of the A-level data, the AB data and the ABC data is preferentially selected. As shown in fig. 3, the satellite signal data includes raw (raw) data, thousand position (qxwz) data, and radio technical Commission for Maritime radio technology (rtcm) data, and each includes two threads (tdpumpers), and the raw data is controlled by the network data pump to have a higher priority than the qxwz data and rtcm data, i.e., to preferentially run the two threads of the raw data before the threads of the qxwz data and rtcm data. This is true regardless of whether the web client is listening or the receiver's thread file is linked to the web server.
The receiver also carries out human-computer interaction through a network port or a serial port, so that high-quality effective data can be selectively transmitted. As shown in fig. 4, the log system file LogMgr of the receiver includes board card data, algorithm data, receiver system log, user input port data, user input serial port data, data interacted between the microprocessor 3 and the central processor of the receiver, differential input data, and data interacted between the microprocessor 3 and each board card 1. The log system file LogMgr is compressed into a log LogGzip, and the redundant hot backup can be performed on each board card 1 through the log system of the receiver.
In this embodiment, the multi-board manager 2 is used to preferentially select the board 1, and the bandwidth preference algorithm is used to transmit the preferred satellite signal data to the cloud for further optimization, so as to improve the high precision and high reliability of the data.
In a preferred aspect of this embodiment (see fig. 5), the receiver further includes: a configuration manager 4, the configuration manager 4 being configured to configure each board 1, the multi-board manager 2, and the network data pump.
When the receiver is started, the configuration manager 4 selects a configuration file config.db file to configure each board 1, the multi-board manager 2, the network data pump and the like. Each functional unit only concerns its own configuration and is synchronous or asynchronous to the configuration manager 4, and when the configuration manager 4 is triggered, each functional unit is notified and dynamically decides the way to adapt itself to the new configuration. The configuration manager 4 also configures a network port or serial port (Web/Shell) for human-computer interaction and a remote background.
In a preferred embodiment of this embodiment, the microprocessor 3 further evaluates the network bandwidth, preferentially selects to transmit high-quality effective data, transmits all available data to the cloud as much as possible, and further optimizes the data through cloud computing.
The receiver implements regional Control On Reference Stations (CORS), and in the same region, single samples of non-differentiated data are ensured, for example, a policy is made to limit a channel for uploading specific data by a reference station in a certain region. Referring to fig. 6, the reference station is divided into n regions, where n is an integer, and in the same region, the receiver ensures that the received satellite signal data is a single sample of non-differential data by defining a channel of the data center for receiving the satellite signal data uploaded by each reference station.
The receiver also performs clustered management and remote control on the reference stations, such as unified upgrade, unified configuration, functional mode remote control, and the like.
In this embodiment, the multi-board manager 12 is used to optimize the board 1, and the bandwidth optimization algorithm is used to transmit the optimized satellite signal data to the cloud for further optimization, so as to improve the high precision and high reliability of the data.
Secondly, human-computer interaction is carried out through the network port or the serial port, and high-quality effective data are selected to be transmitted.
And thirdly, performing redundant hot backup on each board card 1 through a log system.
Example two:
as shown in fig. 7, a structure of a receiving system according to a second embodiment of the present invention includes: the system comprises a receiver 10, a cloud 11 and a reference station 12, wherein the receiver 10 is connected with the cloud 11 through a network, and is connected with the reference station 12 through a communication link. The receiver 10 receives satellite signal data from the reference station 12 and performs an optimized transmission to the cloud 11, and the cloud 11 performs a further optimization on the satellite signal data. The detailed structure and operation principle of the receiver 10 can refer to the description of the first embodiment, and are not repeated herein.
In the invention, the multi-board manager is used for carrying out the optimization on the board, and a bandwidth optimization algorithm is used for transmitting the optimized satellite signal data to the cloud end for further optimization, thereby improving the high precision and the high reliability of the data.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation.
Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A receiver, comprising: the system comprises at least two board cards, a multi-board card manager and a microprocessor;
the at least two board cards are used for respectively receiving satellite signal data;
the multi-board manager is used for carrying out preference on the at least two boards and obtaining the satellite signal data of the at least two selected boards;
the microprocessor is used for transmitting the satellite signal data with preference to a cloud terminal by applying a bandwidth preference algorithm so as to perform further optimization.
2. The receiver of claim 1, further comprising a configuration manager for configuring each board, the multi-board manager, and the network data pump.
3. The receiver of claim 1, wherein the board is one of three types of boards, a global positioning system board, a glonass board, and a beidou satellite navigation system board.
4. The receiver of claim 3, wherein the receiver includes a plurality of different types of boards, and wherein the multi-board manager selects one type of board to receive the satellite signal data when another type of board fails.
5. The receiver of claim 1, wherein the receiver comprises n boards, n being an integer, and wherein the multi-board manager selects board n to receive the satellite signal data when board n-1 fails.
6. The receiver of claim 1, wherein the board has a built-in prioritization algorithm for differentially filtering the high quality satellite signal data.
7. The receiver of claim 1, wherein the microprocessor includes a network data pump that prioritizes the satellite signal data received by each board and transmits the satellite signal data according to bandwidth conditions and priorities.
8. The receiver of claim 7, wherein the network data pump prioritizes the satellite signal data for each board based on signal acquisition tracking capability, observation noise, and multipath mitigation capability.
9. A receiving system, characterized in that the receiving system further comprises the receiver of claims 1-8, a cloud and a reference station, the receiver receiving satellite signal data from the reference station and performing optimized transmission to the cloud, the cloud performing further optimization on the satellite signal data.
10. The receiving system of claim 9, the cloud further performs regional control over the receivers, defining channels for the receivers within a region to upload the satellite signal data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284506.4A CN111123314A (en) | 2018-10-30 | 2018-10-30 | Receiver and receiving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284506.4A CN111123314A (en) | 2018-10-30 | 2018-10-30 | Receiver and receiving system |
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| CN111123314A true CN111123314A (en) | 2020-05-08 |
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| CN201811284506.4A Pending CN111123314A (en) | 2018-10-30 | 2018-10-30 | Receiver and receiving system |
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| CN105425255A (en) * | 2014-09-03 | 2016-03-23 | 霍尼韦尔国际公司 | Method for the geographical selection of global navigation satellite system elements |
| CN105699938A (en) * | 2016-01-28 | 2016-06-22 | 北京麦芯科技有限公司 | An accurate positioning method based on wireless signals and an apparatus thereof |
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|---|---|---|---|---|
| US5248981A (en) * | 1990-05-10 | 1993-09-28 | Pioneer Electronic Corporation | Apparatus and method for positioning of a gps receiver |
| CN1360398A (en) * | 2000-12-18 | 2002-07-24 | 阿苏拉布股份有限公司 | RF signal receiver having control device for channel to be controlled |
| DE602005010466D1 (en) * | 2005-12-29 | 2008-11-27 | Alcatel Lucent | Method for optimizing the processing of localization data in the presence of multiple satellite position constellations |
| CN101312373A (en) * | 2007-05-21 | 2008-11-26 | 联发科技股份有限公司 | Antenna switching system and related method |
| CN101246210A (en) * | 2008-03-25 | 2008-08-20 | 南京航空航天大学 | GPS locating method and GPS software receiver based on dual-core processor |
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Address after: 200438 9 / F, 10 / F, 11 / F, 12 / F, 38 Lane 1688, Guoquan North Road, Yangpu District, Shanghai Applicant after: QIANXUN SPATIAL INTELLIGENCE Inc. Address before: Room j165, 1st floor, building 64, 1436 Jungong Road, Yangpu District, Shanghai, 200433 Applicant before: QIANXUN SPATIAL INTELLIGENCE Inc. |
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Application publication date: 20200508 |