CN214751424U - Reconfigurable bus network among multiple aircrafts - Google Patents
Reconfigurable bus network among multiple aircrafts Download PDFInfo
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- CN214751424U CN214751424U CN202120608513.6U CN202120608513U CN214751424U CN 214751424 U CN214751424 U CN 214751424U CN 202120608513 U CN202120608513 U CN 202120608513U CN 214751424 U CN214751424 U CN 214751424U
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Abstract
A reconfigurable bus network among a plurality of aircrafts comprises a primary bus network and a secondary bus network; the primary bus network comprises a primary bus, a terminal resistor, a bus switch and a separation connector; the N aircrafts are connected through a primary bus, two ends of the primary bus are respectively connected with a terminal resistor, two adjacent aircrafts are connected through a separation connector, and two sides of the separation connector are respectively connected with a bus switch; the single machines in each aircraft are connected through a secondary bus network; when the multiple aircrafts are in combined communication, the bus switch is connected with the primary bus network and the secondary bus network; when a certain aircraft needs independent flight, bus switches on two sides of a separation connector close to the aircraft are switched to self terminal matching resistors, and the separation connector is separated. The utility model discloses a bus communication under the independent flight state of many aircraft combination flight state and aircraft.
Description
Technical Field
The utility model relates to a reconfigurable 1553B bus network between many aircraft to satisfy many aircraft needs in the aerospace field and carry out the application demand of butt joint and separation.
Background
The conventional 1553B bus network system architecture is mainly designed for an independent aircraft, and the architecture can only meet the bus communication of a single aircraft and cannot meet the application requirements of docking and separation of the aircraft in a large spacecraft.
The spacecraft of a certain model is formed by combining a plurality of aircrafts, each aircraft is communicated with the other aircrafts through a 1553B bus network, and the bus network is suitable for the communication requirement of the combined state of the aircrafts and simultaneously meets the communication requirement of the aircrafts during independent flight.
The existing 1553B bus network system architecture cannot meet the requirements of a plurality of aircrafts for combined communication and independent communication.
SUMMERY OF THE UTILITY MODEL
The technical solution problem of the utility model is that: the reconfigurable bus network among the multiple aircrafts uses the same set of 1553B bus network to realize bus communication between the multiple aircrafts in a combined flight state and aircrafts in an independent flight state.
The technical solution of the utility model is that:
a reconfigurable bus network among a plurality of aircrafts comprises a primary bus network and a secondary bus network;
the primary bus network comprises a primary bus, a terminal resistor, a bus switch and a separation connector; the N aircrafts are connected through a primary bus, two ends of the primary bus are respectively connected with a terminal resistor, a separation connector is arranged between two adjacent aircrafts on the primary bus, and bus switches are arranged on two sides of the separation connector;
the single machines in each aircraft are connected through a secondary bus network;
one aircraft of the N aircrafts is a main aircraft, the other aircrafts are sub aircrafts, a main controller of the main aircraft works in a BC mode, and the other single machines of the main aircraft and each single machine of each sub aircraft work in an RT mode;
when the multiple aircrafts are in combined communication, the bus switch is connected with the primary bus network and the secondary bus network; when a certain aircraft needs independent flight, the bus switches on two sides of the separation connector close to the aircraft are switched to the self terminal matching resistor, and the separation connector close to the aircraft is separated.
The terminal resistors connected with the two ends of the primary bus network and the self terminal matching resistors of each bus switch have the same resistance value.
The primary bus network and the secondary bus network are 1553B bus networks.
The primary bus network adopts A, B two sets of networks to realize redundancy backup, and the secondary bus network adopts A, B two sets of networks to realize redundancy backup.
The cabin sections of each aircraft are connected through bus switches and separating connectors.
When a certain aircraft flies independently, the main controller of the aircraft is switched from the RT mode to the BC mode.
Compared with the prior art, the utility model has the advantages of as follows:
the utility model discloses a reconfigurable bus network, this bus network have self-adaptation's characteristics, can realize the communication demand of the different flight stages of many aircraft. The communication among the aircrafts is carried out during the combined flight of the aircrafts, when the aircrafts fly independently, the bus network system reconstruction is realized through the conversion of the working modes of the bus main controller and the switching of the bus switch, and the bus communication under the combined flight state of the aircrafts and the independent flight state of the aircrafts is realized.
Drawings
FIG. 1 is a block diagram of the architecture of the bus network system reconfigurable between multiple aircraft according to the present invention;
FIG. 2 is a schematic diagram of an embodiment of a bus network.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples.
As shown in fig. 1, a reconfigurable bus network among multiple aircraft includes a primary bus network and a secondary bus network, which can implement bus communication requirements of a combined state of multiple aircraft.
The primary bus network comprises a primary bus, a terminal resistor, a bus switch and a separation connector; the N aircrafts are connected through a primary bus, two ends of a connected secondary bus are respectively connected with a terminal resistor, two adjacent aircrafts on the primary bus network are connected through a separation connector, and two sides of the separation connector are connected with a bus switch according to actual requirements. N is a natural number greater than 1.
And the single machines in each aircraft are connected through a secondary bus network.
One aircraft of the N aircrafts is a main aircraft, the other aircrafts are sub aircrafts, a main controller of the main aircraft works in a BC mode, and the other single machines of the main aircraft and the single machines of the sub aircrafts all work in an RT mode.
When the multiple aircrafts are in combined communication, the bus switch is connected with the primary bus network and the secondary bus network; when a certain aircraft needs independent flight, the aircraft is separated, and the bus state setting process before separation is as follows: and bus switches on two sides of the separation connector close to the aircraft are switched to self terminal matching resistors, and the separation connector is separated. Thereby enabling bus network reconfiguration.
If the reconstruction is not needed after the separation of a certain aircraft, the bus switch is not arranged on one side of the aircraft.
The terminal resistor connected with the two ends of the primary bus network and the self terminal matching resistor of each bus switch have resistance values matched with the impedance of the bus cable.
The primary bus network and the secondary bus network are 1553B bus networks. The primary bus network adopts A, B two sets of networks to realize redundancy backup, and the secondary bus network adopts A, B two sets of networks to realize redundancy backup.
The buses of different aircrafts or buses of different cabins are connected into a complete bus network by each separation plane through a bus switch and a separation connector.
When a certain aircraft flies independently, the main controller of the aircraft is switched from the RT mode to the BC mode.
The reconfigurable bus network among the multiple aircrafts and the communication network of the full-exchange Ethernet and the WIFI wireless network complete information interaction through the main controller of the main aircraft, and a complete information system architecture is formed.
The design mode of bus crossing among a plurality of aircrafts is realized through the separation connector.
Example (b):
referring to fig. 2, in a preferred embodiment of the present invention, the large-scale spacecraft comprises 3 aircrafts in total, and the 3 aircraft operation modes are 3 aircrafts for combined flight, 2 aircrafts for combined flight, and independent flight respectively. In the present embodiment, the bus of the aircraft 1 is used as a primary bus network in the combined state, and the buses of the aircraft 2 and the aircraft 3 are used as a secondary bus network in the combined flight state.
The reconfigurable bus network system architecture of the multi-aircraft is composed of components such as BC single machines, BC/RT single machines, separation connectors, bus networks, bus couplers, bus switches and the like.
The 3 aircrafts are connected through a primary bus network, and the primary bus network comprises a primary bus, a terminal resistor, a bus switch, a separation connector and other components; two ends of the primary bus network are respectively connected with a terminal resistor, two adjacent aircrafts on the primary bus network are connected through a separation connector, the switching of the terminal resistors is realized through a bus switch, and the bus network reconstruction is finally realized.
And the single machines in each aircraft are connected through a secondary bus network.
In this example, the main controller in the secondary bus network may implement switching between the track BC or RT operating modes through the top-level configuration; the bus switch can realize the switching of the main bus on or the bus matching resistance through power on and power off control.
In the example, in the combined flight phase of the aircraft, the main controller of the aircraft 1 serves as a BC of the whole set of 1553B bus, the working mode of the main controller of the secondary bus is an RT state, and the working state of the bus switch is a main bus connection mode, so that the bus communication function in the combined state of multiple aircraft is realized.
In this example, before the aircraft independently develops the working mode, the main controller of the secondary bus is switched to the BC working mode, the relevant bus switch is switched to the terminal matching resistor, and the 1553B bus is reconstructed. The secondary bus forms a complete independent bus network, the separation connectors are separated, and the aircraft flies independently.
In this example, the bus reconfiguration function of the aircraft 1 needs to be realized between the cabin segments according to task requirements, and similarly, the bus reconfiguration function of the aircraft 1 is realized by switching the working modes of the bus switches arranged between the cabin segments. In order to reduce the number of cabin penetration times of the main bus and improve the communication performance of the bus, a cabin penetration mode of the sub-bus is adopted in the cabin section 3 of the aircraft 1.
By adopting the spacecraft 1553B bus network system architecture of the embodiment, the design is simple, the adaptability is strong, the reliability is high, the reconstruction of the rail 1553B bus network can be realized through the switching of the working modes of the secondary bus network main controller on the rail BC or RT and the switching of the working modes of the bus switch, and the bus network communication function under the combined flight state and the independent flight state of multiple aircrafts is realized.
The utility model discloses a bus information network architecture divide into one-level 1553B bus network and second grade 1553B bus network between a plurality of aircraft. Under the configuration of a plurality of aircraft assemblies, a primary bus network is formed by combining secondary bus networks of a main aircraft and each sub aircraft, a BC (main controller) is positioned in the main aircraft, and the BC of each secondary bus is an RT (remote terminal) in the primary network. In the separation process of each sub aircraft, the primary bus network and the secondary bus network are respectively reconstructed, and the primary bus network cuts off and matches the sub bus network to be separated through a bus switch before separation. And the work mode of the main controller of the separated secondary network of the sub aircraft is converted into BC from RT and the terminal resistance matching of the secondary bus network is completed. In the process of combining the main aircraft and the sub aircraft, after butt joint, the working mode of a main controller of a secondary bus network of the sub aircraft is converted into RT from BC, and a secondary bus network communicates the combined bus network through a bus switch. The utility model discloses use same set of 1553B bus network, realized under the many aircraft combination flight state with the bus communication under the independent flight state of aircraft.
The non-detailed description of the present invention is the common general knowledge of those skilled in the art.
Claims (6)
1. A reconfigurable bus network between multiple aircraft, characterized by: the system comprises a primary bus network and a secondary bus network;
the primary bus network comprises a primary bus, a terminal resistor, a bus switch and a separation connector; the N aircrafts are connected through a primary bus, two ends of the primary bus are respectively connected with a terminal resistor, a separation connector is arranged between two adjacent aircrafts on the primary bus, and bus switches are arranged on two sides of the separation connector;
the single machines in each aircraft are connected through a secondary bus network;
one aircraft of the N aircrafts is a main aircraft, the other aircrafts are sub aircrafts, a main controller of the main aircraft works in a BC mode, and the other single machines of the main aircraft and each single machine of each sub aircraft work in an RT mode;
when the multiple aircrafts are in combined communication, the bus switch is connected with the primary bus network and the secondary bus network; when a certain aircraft needs independent flight, the bus switches on two sides of the separation connector close to the aircraft are switched to the self terminal matching resistor, and the separation connector close to the aircraft is separated.
2. A reconfigurable bus network between multiple aircraft as claimed in claim 1, wherein: the terminal resistors connected with the two ends of the primary bus network and the self terminal matching resistors of each bus switch have the same resistance value.
3. A reconfigurable bus network between multiple aircraft as claimed in claim 1, wherein: the primary bus network and the secondary bus network are 1553B bus networks.
4. A reconfigurable bus network between multiple aircraft as claimed in claim 2, wherein: the primary bus network adopts A, B two sets of networks to realize redundancy backup, and the secondary bus network adopts A, B two sets of networks to realize redundancy backup.
5. A reconfigurable bus network between multiple aircraft as claimed in claim 1, wherein: the cabin sections of each aircraft are connected through bus switches and separating connectors.
6. A reconfigurable bus network between multiple aircraft as claimed in claim 1, wherein: when a certain aircraft flies independently, the main controller of the aircraft is switched from the RT mode to the BC mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608513.6U CN214751424U (en) | 2021-03-25 | 2021-03-25 | Reconfigurable bus network among multiple aircrafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120608513.6U CN214751424U (en) | 2021-03-25 | 2021-03-25 | Reconfigurable bus network among multiple aircrafts |
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| Publication Number | Publication Date |
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| CN214751424U true CN214751424U (en) | 2021-11-16 |
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| CN202120608513.6U Active CN214751424U (en) | 2021-03-25 | 2021-03-25 | Reconfigurable bus network among multiple aircrafts |
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2021
- 2021-03-25 CN CN202120608513.6U patent/CN214751424U/en active Active
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