CN109460402A - A kind of telemetry emerging system based on GPS space time information - Google Patents
A kind of telemetry emerging system based on GPS space time information Download PDFInfo
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- CN109460402A CN109460402A CN201811551091.2A CN201811551091A CN109460402A CN 109460402 A CN109460402 A CN 109460402A CN 201811551091 A CN201811551091 A CN 201811551091A CN 109460402 A CN109460402 A CN 109460402A
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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
- G01S19/14—Receivers specially adapted for specific applications
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- Radar, Positioning & Navigation (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of telemetry emerging systems based on GPS space time information, it include: a detection and control terminal, a gateway node and the n wireless receiving and dispatching node being laid in below test target flight path, detection and control terminal, gateway node and wireless receiving and dispatching node form ground multihop self-organizing network.Wireless receiving and dispatching node is with the following functions: when test target flies to affiliated wireless receiving and dispatching node transceiving range, receiving the telemetry data packet that test target is sent；Obtain GPS space time information；Carry out the Data Fusion of GPS space time information and telemetry data packet；Carry out the data transmission between node；Sequential storage is carried out according to GPS time information therein to the fused telemetry data packet of data；For detection and control terminal after test target flies, detection and control terminal sends the passback order of each wireless receiving and dispatching node by gateway node, and the telemetry data packet of storage is carried out multi-hop passback by control line transmitting-receiving node.The system can be realized telemetry and completely and efficiently transmit and converge.
Description
Technical field
The present invention relates to Data fusion technique fields, and in particular to a kind of telemetry fusion based on GPS space time information
System.
Background technique
It is mainly at present telemetering for the test mode of remote high-speed flight test target parameter.During the test,
Radio-frequency module in test flight target sends the parameter information of test flight target in real time, and ground receiving system connects in real time
Receive the parameter information.Traditional telemetry ground receiver method is broadly divided into telemetry vehicle and receives and small-scale terrestrial receiving station two
Kind.There is telemetry vehicle stronger telemetry to receive ability, but bulky, expensive, traditional small-scale terrestrial receiving station
Although good portability and power consumption with cost is relatively low, it is limited to the communication between airbound target and ground telemetering data receiving station
Distance can not effectively obtain the telemetry of long-distance flight target.
In the telemetry system, ground telemetry is disposed to receive section according to the flight path of airflight test target
The geographical location of point.Since the speed of test flight target is fast, distance is remote and span is big, in order to obtain the complete of entire flight range
Whole telemetry, the position of ground telemetering data reception node is laid, data fusion and transmission strategy are most important.Traditional survey
Wireless receiving and dispatching node in test system can not carry out effective Data Fusion, and a large amount of redundancy and repetition occurs in data volume,
The waste for causing transfer resource thus greatly reduces the working efficiency of entire test macro.
Summary of the invention
In view of this, can be realized distant the present invention provides a kind of telemetry emerging system based on GPS space time information
Measured data is complete and efficiently transmits and converges.
In order to achieve the above objectives, the technical solution of the present invention is as follows:
A kind of telemetry emerging system based on GPS space time information includes: to be laid in below test target flight path
A detection and control terminal, a gateway node and n wireless receiving and dispatching node, detection and control terminal, gateway node and wireless receiving and dispatching node
Ground multihop self-organizing network is formed, the transceiving range of n wireless receiving and dispatching node covers entire flight path, and detection and control terminal passes through
Gateway node is controlled to indirectly control wireless receiving and dispatching node.
Wireless receiving and dispatching node includes master controller, radio receiving transmitting module, GPS signal receiving module, telemetry reception mould
Block and memory module.
Telemetry receiving module, for connecing when test target flies to affiliated wireless receiving and dispatching node transceiving range
The telemetry data packet that Acceptance Tests target is sent.
GPS signal receiving module is believed for obtaining GPS space time information including GPS spatial information, that is, node geographical location
Breath and GPS time information, that is, node receive temporal information when telemetry data packet.
Master controller, for the parsing for the data packet that takes remote measurement, the parsing of GPS signal, GPS space time information and telemetry
The Data Fusion of packet.
Radio receiving transmitting module, for carrying out the transmission of the data between node.
Memory module, for being deposited to the fused telemetry data packet of data according to GPS time information progress sequence therein
Storage.
Detection and control terminal, for it is each to send broadcasting command acquisition by control gateway node after test target flight
The GPS time information of head and the tail telemetry data packet, i.e. head and the tail time in the GPS spatial information and its memory module of wireless receiving and dispatching node
Information；When detection and control terminal determines the return data packet of each wireless receiving and dispatching node according to the head and the tail temporal information of each wireless receiving and dispatching node
Between section.
Detection and control terminal sends the passback order of each wireless receiving and dispatching node by gateway node.
Wireless receiving and dispatching node receives and the telemetry data packet of storage is carried out multi-hop passback after passback is ordered.
Further, has radio-frequency module on test target, radio-frequency module is for collecting test data and by test data
It is packaged into telemetry data packet, telemetry data packet is sent to telemetry receiving module through vacant lot transmission link.
Further, wireless receiving and dispatching node receives and the telemetry data packet of storage is carried out multi-hop passback after passback is ordered,
Specifically: after wireless receiving and dispatching node receives the telemetry data packet that a hop node is sent thereon, upper hop node is sent distant
Measured data packet stores the memory module to current wireless receiving and dispatching node, and current wireless receiving and dispatching node sends upper hop node distant
Measured data packet is preferably stored with repeating part in telemetry data packet existing in memory module, selects integrated degree higher
Repeating part is stored.
Further, wireless receiving and dispatching node receives and the telemetry data packet of storage is carried out multi-hop passback after passback is ordered,
Further include: when current wireless receiving and dispatching node receives the telemetry data packet that upper hop node is sent, in real time according to GPS time therein
The data packet that Information Statistics are lost, and the GPS time information of the data packet of loss is cached；The telemetering number of upper hop node
After being sent completely according to packet, the GPS time information of all lost data packets is returned to upper hop section by current wireless receiving and dispatching node
Point, upper hop node retransmit the corresponding telemetry data packet of the GPS time information of all lost data packets.
The utility model has the advantages that
The present invention provides a kind of telemetry emerging systems based on GPS space time information.The system is by detection and control terminal, one
The ground multihop self-organizing network of a gateway node and multiple wireless receiving and dispatching nodes composition.The ground multihop self-organizing network can
Data Fusion is carried out according to GPS space time information and telemetry；Detection and control terminal according to the GPS spatial information of each node with
The GPS time information of head and the tail data packet determines data packet section that each node to be returned；Intra-node is carried according to data packet
GPS time stores come the sequence for the data packet that takes remote measurement, to realize the valid data fusion of repetition telemetry, and node
Internal establishes packet loss detection and retransmission processes using GPS space time information as the telemetry storehouse of foundation.With conventional telemetry systems
Compared to having many advantages, such as that low cost, telemetry integrality are high, on the other hand there is number compared with traditional wireless test network
The high advantages such as low with packet loss of, efficiency of transmission low according to redundancy.
Detailed description of the invention
Fig. 1 is a kind of telemetry emerging system composition schematic diagram based on GPS space time information provided by the invention；
Fig. 2 is the composition schematic diagram of wireless receiving and dispatching node in the embodiment of the present invention.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
The present invention provides a kind of telemetry emerging system based on GPS space time information, system composition as shown in Figure 1,
It include: a detection and control terminal, a gateway node and the n wireless receiving and dispatching node being laid in below test target flight path,
Detection and control terminal, gateway node and wireless receiving and dispatching node form ground multihop self-organizing network, the transmitting-receiving model of n wireless receiving and dispatching node
The entire flight path of covering is enclosed, detection and control terminal indirectly controls wireless receiving and dispatching node by control gateway node.
The composition of wireless receiving and dispatching node is as shown in Fig. 2, receive mould comprising master controller, radio receiving transmitting module, GPS signal
Block, telemetry receiving module and memory module.
Telemetry receiving module therein, for flying in test target to affiliated wireless receiving and dispatching node transceiving range
When, receive the telemetry data packet that test target is sent.Wherein has radio-frequency module on test target, radio-frequency module is surveyed for acquiring
Test data is simultaneously packaged into telemetry data packet by examination data, and telemetry data packet is sent to telemetry through vacant lot transmission link and receives
Module.
GPS signal receiving module is believed for obtaining GPS space time information including GPS spatial information, that is, node geographical location
Breath and GPS time information, that is, node receive temporal information when telemetry data packet.
Master controller, for the parsing for the data packet that takes remote measurement, the parsing of GPS signal, GPS space time information and telemetry
The Data Fusion of packet.
Radio receiving transmitting module, for carrying out the transmission of the data between node；Realize that upper hop node leads to telemetry data packet
It crosses radio receiving transmitting module and is sent to next-hop node.
Memory module, for being deposited to the fused telemetry data packet of data according to GPS time information progress sequence therein
Storage；Memory module can be high-speed internal memory or external memory in the embodiment of the present invention.
Detection and control terminal, for it is each to send broadcasting command acquisition by control gateway node after test target flight
The GPS time information of head and the tail telemetry data packet, i.e. head and the tail time in the GPS spatial information and its memory module of wireless receiving and dispatching node
Information；When detection and control terminal determines the return data packet of each wireless receiving and dispatching node according to the head and the tail temporal information of each wireless receiving and dispatching node
Between section.
Detection and control terminal sends the passback order of each wireless receiving and dispatching node by gateway node.
Wireless receiving and dispatching node receives and the telemetry data packet of storage is carried out multi-hop passback after passback is ordered.
Wherein multi-hop passback process, specifically: wireless receiving and dispatching node receives the telemetry data packet that a hop node is sent thereon
Later, memory module of telemetry data packet storage upper hop node sent to current wireless receiving and dispatching node, current wireless receipts
Repeating part carries out in existing telemetry data packet in the telemetry data packet and memory module that hair node sends upper hop node
It is preferred that storing, the higher repeating part of integrated degree is selected to be stored.Number is realized by the preferred operations of repetitive data packet
It covers or replaces according to packet repeated segments, not only reduce the data volume of next-hop transmission, and improve the integrality of data packet.
Further include following packet loss detection and retransmission processes in multi-hop passback process:
When current wireless receiving and dispatching node receives the telemetry data packet that upper hop node is sent, in real time according to GPS therein when
Between the data packet lost of Information Statistics, and the GPS time information of the data packet of loss is cached；The telemetering of upper hop node
After data packet is sent completely, the GPS time information of all lost data packets is returned to upper hop by current wireless receiving and dispatching node
Node, upper hop node retransmit the corresponding telemetry data packet of the GPS time information of all lost data packets.Packet loss inspection
The process surveyed and retransmitted, is to be established based on GPS time information, greatly reduces the packet loss of whole system.
To sum up, the above is merely preferred embodiments of the present invention, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (4)
1. a kind of telemetry emerging system based on GPS space time information, which is characterized in that the system comprises: it is laid in survey
A detection and control terminal, a gateway node and n wireless receiving and dispatching node below examination target flight track, the detection and control terminal,
Gateway node and wireless receiving and dispatching node form ground multihop self-organizing network, and the transceiving range of the n wireless receiving and dispatching node covers
Entire flight path is covered, detection and control terminal indirectly controls wireless receiving and dispatching node by control gateway node；
The wireless receiving and dispatching node includes master controller, radio receiving transmitting module, GPS signal receiving module, telemetry reception mould
Block and memory module；
The telemetry receiving module, for connecing when test target flies to affiliated wireless receiving and dispatching node transceiving range
Receive the telemetry data packet that the test target is sent；
The GPS signal receiving module is believed for obtaining GPS space time information including GPS spatial information, that is, node geographical location
Breath and GPS time information, that is, node receive the temporal information when telemetry data packet；
The master controller, for carry out the parsing of the telemetry data packet, the parsing of the GPS signal, GPS space time information with
The Data Fusion of the telemetry data packet；
The radio receiving transmitting module, for carrying out the transmission of the data between node；
The memory module, for being deposited to the fused telemetry data packet of data according to GPS time information progress sequence therein
Storage；
The detection and control terminal, for sending broadcasting command by control gateway node and obtaining after test target flight
Take the GPS time information of head and the tail telemetry data packet in the GPS spatial information and its memory module of each wireless receiving and dispatching node, i.e. head and the tail
Temporal information；The detection and control terminal determines the passback of each wireless receiving and dispatching node according to the head and the tail temporal information of each wireless receiving and dispatching node
Packet time section；
The detection and control terminal sends the passback order of each wireless receiving and dispatching node by the gateway node；
The wireless receiving and dispatching node receives and the telemetry data packet of storage is carried out multi-hop passback after the passback is ordered.
2. the system as claimed in claim 1, which is characterized in that have radio-frequency module, the radio frequency mould on the test target
The test data for collecting test data and is packaged into telemetry data packet by block, and the telemetry data packet is through vacant lot chain
Road is sent to the telemetry receiving module.
3. the system as claimed in claim 1, which is characterized in that the wireless receiving and dispatching node will after receiving the passback order
The telemetry data packet of storage carries out multi-hop passback, specifically:
After wireless receiving and dispatching node receives the telemetry data packet that a hop node is sent thereon, telemetering number that upper hop node is sent
The memory module of current wireless receiving and dispatching node, the telemetering number that current wireless receiving and dispatching node sends upper hop node are arrived according to packet storage
It is preferably stored according to packet with repeating part in telemetry data packet existing in memory module, selects the higher repetition of integrated degree
Part is stored.
4. system as claimed in claim 3, which is characterized in that the wireless receiving and dispatching node will after receiving the passback order
The telemetry data packet of storage carries out multi-hop passback, further includes:
When current wireless receiving and dispatching node receives the telemetry data packet that the upper hop node is sent, in real time according to GPS therein when
Between the data packet lost of Information Statistics, and the GPS time information of the data packet of loss is cached；The telemetering of upper hop node
After data packet is sent completely, current wireless receiving and dispatching node returns to the GPS time information of all lost data packets on described
One hop node, the upper hop node retransmit the corresponding telemetry data packet of the GPS time information of all lost data packets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551091.2A CN109460402B (en) | 2018-12-18 | 2018-12-18 | Telemetering data fusion system based on GPS (Global positioning System) space-time information |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811551091.2A CN109460402B (en) | 2018-12-18 | 2018-12-18 | Telemetering data fusion system based on GPS (Global positioning System) space-time information |
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| CN109460402B CN109460402B (en) | 2021-07-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110723310A (en) * | 2019-09-24 | 2020-01-24 | 蚌埠和能信息科技有限公司 | To aircraft test signal processing equipment along separate routes |
| CN111561961A (en) * | 2020-03-17 | 2020-08-21 | 中国船舶重工集团公司第七一五研究所 | Marine information acquisition system and method for synchronizing additional time information |
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| CN106034147A (en) * | 2015-03-16 | 2016-10-19 | 北京军懋国兴科技股份有限公司 | Multi-machine aircraft data real -time monitoring system |
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| CN109460402B (en) | 2021-07-09 |
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