CN116521599A - Electronic airborne 1394 bus three-node disconnection device - Google Patents
Electronic airborne 1394 bus three-node disconnection device Download PDFInfo
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- CN116521599A CN116521599A CN202310437312.8A CN202310437312A CN116521599A CN 116521599 A CN116521599 A CN 116521599A CN 202310437312 A CN202310437312 A CN 202310437312A CN 116521599 A CN116521599 A CN 116521599A
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- line connection
- controller
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- 230000003750 conditioning effect Effects 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 32
- 230000009977 dual effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4247—Bus transfer protocol, e.g. handshake; Synchronisation on a daisy chain bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Small-Scale Networks (AREA)
Abstract
The base body of the device is of a box-shaped shell structure, three connecting ports are arranged on the shell, a control circuit module is arranged in the shell, a line connector is embedded in each connecting port, one end of the line connector in each connecting port is connected with a line connecting node on the control circuit module, the other end of the line connector is matched with a 1394 bus cable, the control circuit module comprises a controller, three registers, three signal conditioning isolators, three line connecting nodes and a power supply module, the controller is connected with the three registers, and each register is connected with one line connecting node through a corresponding signal conditioning isolator.
Description
Technical Field
The invention belongs to the technical field of aircraft airborne 1394 bus tests, and particularly relates to an electronic airborne 1394 bus three-node disconnection device.
Background
The airborne 1394 bus is a communication bus with a daisy chain structure, each node in the bus is connected in series in the bus network according to the hierarchical membership, and each branch node participates in the relay and processing of communication data, namely, a lower network performs link construction and data relay through the communication nodes in an upper network. The on-board 1394 bus adopts a physical connection mode, a plurality of airborne devices are hung on one communication line, and the airborne devices are mutually connected in series one by one, so that the communication between the airborne devices is mutually affected, and when the communication of one airborne device is problematic, the communication network of the next-stage airborne device connected with the communication network is affected. When the communication problem occurs on the existing machine, a tester is adopted to detect which node has a fault, and then new equipment is correspondingly replaced, so that whether the node after the fault node communicates normally can be further detected.
Disclosure of Invention
In order to facilitate on-board communication line inspection, the application provides an electronic airborne 1394 bus three-node disconnection device.
The utility model provides an electronic type airborne 1394 bus three-node disconnection device which characterized in that, the base member of the device is a box-shaped shell structure, is equipped with three connection port on the casing, is equipped with control circuit module in the casing, inlays a line connector in every connection port, and line connector one end in every connection port is connected with a line connection node on the control circuit module, and the other end matches with 1394 bus cable, control circuit module contain a controller, three register, three signal conditioning isolator and three line connection node and power module, the controller connect three register, every register is connected with a line connection node through a corresponding signal conditioning isolator.
The electronic airborne 1394 bus three-node disconnection device is characterized in that the power module comprises a double power supply and a three power supply, wherein the double power supply supplies power to the controller, and the three power supplies power to the three registers and the three signal conditioning isolators respectively.
The electronic airborne 1394 bus three-node disconnection device is characterized in that an opening structure movable surface is arranged on the upper portion of the base body, the opening structure movable surface is fixed through six closed holes, and the control circuit module is arranged below the opening structure movable surface and is fixed through four mounting holes.
The three-node disconnection method of the electronic airborne 1394 bus is characterized by comprising the following steps of: 1) Respectively connecting three paths of airborne 1394 buses into three connecting ports of the electronic airborne 1394 bus three-node disconnection device; 2) The controller of the disconnection device adopts a program control mode to control the working state of each line connection node and each register, each line connection node processes the received airborne 1394 bus signal through the signal conditioning isolator connected with the line connection node, the processed bus signal is respectively transmitted to all three registers for storage, and the registers are respectively transmitted outwards through the signal conditioning isolator connected with each line connection node according to the instruction of the controller; 3) When one line connection node of the disconnection device is controlled by the controller to serve as a transmitting node, the other two line connection nodes serve as receiving nodes, and normal data communication among the three nodes is realized.
The beneficial effects of this application lie in: the electronic airborne 1394 bus three-node disconnection device provided by the invention has the advantages that the bus receiving and transmitting lines of the upstream and downstream adjacent communication nodes are connected in an electronic way under the conditions of not damaging the original aircraft bus line and not increasing airborne equipment (bus nodes), the data normal communication between the upstream and downstream nodes is realized by simulating the airborne 1394 bus three-node, the detection of the airborne communication line is facilitated, and a low-cost solution is provided for the communication link construction of an airborne 1394 bus network.
The present application is described in further detail below with reference to the drawings of embodiments.
Drawings
Fig. 1 is a schematic diagram of an on-board 1394 bus three-node disconnection device in an open state.
Fig. 2 is a schematic diagram of a control circuit module.
Fig. 3 is a schematic diagram of a three-node communication information transmission flow of an airborne 1394 bus.
Fig. 4 is a schematic diagram of three-node communication transmission of an onboard 1394 bus.
The numbering in the figures illustrates: 1. a base; 2. an opening structure movable surface; 3. closing the opening; 4. a control circuit module; 5. the left end line is connected with the node; 6. the right end line is connected with the node; 7. the lower end line is connected with the node; 8. a line connector; 9. a connection port; 10. 1394 bus cable; 11. installing a mounting hole; 12. a power module; 13. three power supplies; 14. a dual power supply; 15. a controller; 16. a register; 17. a signal conditioning isolator.
Detailed Description
Referring to the attached drawings, when the communication problem occurs on the aircraft, the airborne 1394 bus three-node disconnection device can be used for positioning which node is in particular in question by using the tester, then the disconnection device is connected to the original fault node, so that the normal communication of the subsequent node can be ensured, namely, the data communication between the upstream node and the downstream node can be realized by simulating the airborne 1394 bus three-node under the conditions of not damaging the original aircraft bus line and not adding airborne equipment (bus node), and effective tools and means are provided for diagnosing 1394 bus network communication and testing on the aircraft. The device comprises a substrate 1, a box-shaped shell structure, three connecting ports 9 are arranged on the shell, a control circuit module 4 is arranged in the shell, a line connector 8 is embedded in each connecting port 9, one end of each line connector 8 in each connecting port 9 is respectively connected with a left-end line connecting node 5, a right-end line connecting node 6 and a lower-end line connecting node 7 on the control circuit module 4, the other end of each line connector is matched with a 1394 bus cable 10, the control circuit module 4 comprises a controller 15, three registers 16, three signal conditioning isolators 17, a power supply module 12, a left-end line connecting node 5, a right-end line connecting node 6 and a lower-end line connecting node 7, the controller 15 is connected with the three registers 16, and each register 16 is respectively connected with the left-end line connecting node 5, the right-end line connecting node 6 and the lower-end line connecting node 7 through a corresponding signal conditioning isolator 17.
The power module 12 comprises a dual power supply 14 and a three power supply 13, wherein the dual power supply 14 supplies power to the controller 15, and the three power supplies 13 respectively supply power to the three registers 16 and the three signal conditioning isolators 17.
The upper part of the base body 1 is provided with an opening structure movable surface 2, the opening structure movable surface 2 is fixed through six closed holes 3, and the control circuit module 4 is arranged below the opening structure movable surface 2 and is fixed through four mounting holes 11.
When in use, the electric connector matched with the connecting port 9 is adopted as the line connector 8 of the device, and the connection with the onboard bus cable is ensured. Three line connectors 8 are connected with the base body 1, an opening structure movable surface 2 is arranged at the upper part of the base body 1, a control circuit module 4 is arranged in the base body 1, the control circuit module 4 is connected in a line mode according to a schematic diagram shown in fig. 2, communication programs between corresponding nodes are written in the controller 15 through node bus connection relations, and normal data communication between the three nodes is achieved through configuration registers and program drive I/O ports.
The specific implementation is as follows: the controller 15 of the disconnection device adopts a program control mode to control the working states of the left end line connection node 5, the right end line connection node 6, the lower end line connection node 7 and each register 16, the left end line connection node 5, the right end line connection node 6 and the lower end line connection node 7 process the received airborne 1394 bus signals through the signal conditioning isolator 17 connected with the same, the processed bus signals are respectively transmitted to all three registers 16 for storage, and the registers 16 are respectively transmitted outwards through the signal conditioning isolator 17, the left end line connection node 5, the right end line connection node 6 and the lower end line connection node 7 which are respectively connected according to the instructions of the controller 15. When the controller 15 controls the left end line connection node 5 of the disconnection device to serve as a transmitting node, the right end line connection node 6 and the lower end line connection node 7 serve as receiving nodes, so that normal data communication among the three nodes is realized; when the controller 15 controls the right-end line connection node 6 of the disconnection device to serve as a transmitting node, the left-end line connection node 5 and the lower-end line connection node 7 serve as receiving nodes, so that normal data communication among the three nodes is realized; when the controller 15 controls the lower end line connection node 7 of the disconnection device to serve as a transmitting node, the left end line connection node 5 and the right end line connection node 6 serve as receiving nodes, and normal data communication among the three nodes is achieved. As shown in fig. 3, taking communication when the left-end line connection node 5 is used as a transmission node as an example, the controller 15 transmits a control signal for receiving data to the left-end line connection node 5, and when it detects that the reception of a data packet is completed, the controller writes the received data into a register 16 corresponding to the data packet, waits until the clock signal is completed, and then transmits the received data to the right-end line connection node 6 and the lower-end line connection node 7. Likewise, the communication flow is also the same when the right-end line connection node 6 and the lower-end line connection node 7 are sequentially used as the transmission nodes.
Through the operation, the device can simulate 1394 bus nodes to check on-board communication lines, and only the bus connector of the communication node of the on-board equipment is connected with the line connector of the device, so that corresponding program driving operation can be completed according to the bus connection relation of the upper node and the lower node, and normal communication of data among other nodes in a bus network is ensured.
Claims (4)
1. The utility model provides an electronic type airborne 1394 bus three-node disconnection device which characterized in that, the base member of the device is a box-shaped shell structure, is equipped with three connection port on the casing, is equipped with control circuit module in the casing, inlays a line connector in every connection port, and line connector one end in every connection port is connected with a line connection node on the control circuit module, and the other end matches with 1394 bus cable, control circuit module contain a controller, three register, three signal conditioning isolator and three line connection node and power module, the controller connect three register, every register is connected with a line connection node through a corresponding signal conditioning isolator.
2. The electronic airborne 1394 bus three-node disconnect device of claim 1, wherein the power module includes a dual power supply and a tri-power supply, the dual power supply providing power to the controller, the tri-power supply providing power to the three registers and the three signal conditioning isolators, respectively.
3. The electronic airborne 1394 bus three-node disconnection device according to claim 1, wherein the upper portion of the base body is provided with an opening structure movable surface, the opening structure movable surface is fixed by six closed openings, and the control circuit module is arranged below the opening structure movable surface and fixed by four mounting holes.
4. The three-node disconnection method of the electronic airborne 1394 bus is characterized by comprising the following steps of: 1) Respectively connecting the three paths of airborne 1394 buses into three connecting ports of the electronic airborne 1394 bus three-node disconnecting device according to claim 1, 2 or 3; 2) The controller of the disconnection device adopts a program control mode to control the working state of each line connection node and each register, each line connection node processes the received airborne 1394 bus signal through the signal conditioning isolator connected with the line connection node, the processed bus signal is respectively transmitted to all three registers for storage, and the registers are respectively transmitted outwards through the signal conditioning isolator connected with each line connection node according to the instruction of the controller; 3) When one line connection node of the disconnection device is controlled by the controller to serve as a transmitting node, the other two line connection nodes serve as receiving nodes, and normal data communication among the three nodes is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310437312.8A CN116521599A (en) | 2023-04-21 | 2023-04-21 | Electronic airborne 1394 bus three-node disconnection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310437312.8A CN116521599A (en) | 2023-04-21 | 2023-04-21 | Electronic airborne 1394 bus three-node disconnection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116521599A true CN116521599A (en) | 2023-08-01 |
Family
ID=87391453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310437312.8A Pending CN116521599A (en) | 2023-04-21 | 2023-04-21 | Electronic airborne 1394 bus three-node disconnection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116521599A (en) |
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2023
- 2023-04-21 CN CN202310437312.8A patent/CN116521599A/en active Pending
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