CN219533653U - Bus testing device - Google Patents
Bus testing device Download PDFInfo
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- CN219533653U CN219533653U CN202223128658.XU CN202223128658U CN219533653U CN 219533653 U CN219533653 U CN 219533653U CN 202223128658 U CN202223128658 U CN 202223128658U CN 219533653 U CN219533653 U CN 219533653U
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Abstract
The utility model belongs to the field of electronic information, and particularly relates to a bus testing device. In a carrier rocket system, the existing test equipment generally transmits a single-channel 1553B bus message, and the single-machine test coverage of the three-channel 1553B bus is insufficient. The utility model discloses a bus testing device which comprises a CPU board card, a single-channel board card, a double-channel board card, a coupler board card, a communication board card and a power supply and distribution system. The CPU board card is connected with the single-channel board card, the double-channel board card and the communication board card through buses, the single-channel board card and the double-channel board card are respectively connected to the coupler board card in a bridging mode through matched cables, the coupler board card is connected to a 1553B module of the single unit to be tested in a bridging mode through the matched cables, and the control module of the single unit to be tested is connected with the communication board card through the cables. The utility model solves the problem of insufficient single-machine test coverage of the existing test equipment on the multi-channel 1553B bus, and realizes single-machine test full coverage on the three-channel 1553B bus by respectively configuring three-channel 1553B boards.
Description
Technical Field
The utility model belongs to the field of electronic information, and particularly relates to a bus testing device.
Background
In the carrier rocket and other systems, in order to test and evaluate the performance of the 1553B bus single machine, test equipment generally simulates a bus controller BC, provides MT data sources and remote terminal RT commands for the 1553B bus single machine, receives command signals analyzed by the single machine, and judges the working state of the single machine. Existing test equipment typically sends a 1553B bus message with customizable single channel BC, which is not sufficiently covered for three-channel 1553B bus stand-alone testing. The utility model designs a bus testing device which can transmit 1553B three-way data, simplifies the connection between devices, reduces the influence of system weight and electromagnetic interference, realizes information sharing and solves the comprehensive problem of partial system functions and processing functions.
Disclosure of Invention
Aiming at the problems of the prior equipment, the utility model provides a bus testing device which is respectively configured by 1553B boards of three channels BC to realize the single-machine testability complete coverage of a multi-channel 1553B bus.
The technical scheme of the utility model is as follows:
a bus testing device comprises a CPU board card, a single-channel board card, a double-channel board card, a coupler board card, a communication board card and a power supply and distribution system; the CPU board card is connected with the single-channel board card, the double-channel board card and the communication board card through buses, the single-channel board card and the double-channel board card are respectively connected to the coupler board card in a bridging mode through matched cables, the coupler board card is connected to a 1553B module of the single unit to be tested in a bridging mode through the matched cables, and the control module of the single unit to be tested transmits data to the communication board card through the cables according to a communication protocol, and the output end of the power supply and distribution system is connected with the testing device and the single unit to be tested.
And the main control software of the CPU board card is communicated with the single-channel board card, the double-channel board card and the communication board card through the cPCI bus, and receives the uploaded data of the communication board card for analysis and display.
The CPU board card selects an intel core (TM) i7-4700EQ four-core processor, and the CPU board card is provided with 2 Ethernet ports 10/100/1000, 3 USB interfaces and 1 DVI interface, and is cached by 6M.
The single-channel board card is a single-channel 1553B board card, is provided with an onboard 1M memory, is provided with a cPCI bus interface, can customize messages through Bustol software of an upper computer, can ensure the stability and reliability of hardware, and simulates BC,31RT and BM through software setting.
The dual-channel board card is a dual-channel 1553B board card, each channel is provided with an onboard 1M memory and a cPCI bus interface, each channel of information can be customized through Bustol software of an upper computer, stability and reliability of hardware can be ensured, and BC,31RT and BM are simulated through software setting.
The coupler board card adopts a 3U8HP high-integration plug-in card coupler, so that three channels of 1553B1, 1553B2 and 1553B3 and a single channel can be respectively and independently coupled; the interface of the board card end of the coupler is a DB15 connector, so that the communication between the testing device and the tested single machine 1553B signals is realized.
The communication board card selects an RS422 communication board card, adopts a synchronous 422 communication mode, and collects the instruction signal of the single machine to be tested and displays the instruction signal on an upper computer interface.
The input end of the power supply and distribution system is 220V alternating current, the power supply and distribution system supplies power for the testing device and the tested stand-alone machine, and the power supply and distribution system has overcurrent, overvoltage and overheat output protection functions.
The utility model has the beneficial effects that:
the bus testing device realizes complete coverage of single-machine testability of the three-way 1553B bus by the respective configuration of the three-way 1553B board, so that connection among devices can be reduced, the influence of electromagnetic interference on data measurement can be reduced, and the weight of the testing device can be reduced.
Drawings
FIG. 1 is a block diagram of a bus test apparatus
In the figure: CPU board card, 2, single channel board card, 3, double channel board card, 4, coupler board card, 5, communication board card, 6, power supply and distribution system, 7, single unit under test, 8, DB15 connector.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
As shown in fig. 1, the utility model is a bus testing device, which comprises a CPU board 1, a single-channel board 2, a double-channel board 3, a coupler board 4, a communication board 5 and a power supply and distribution system 6. The single-channel board card 2 is a single-channel 1553B board card, the double-channel board card 3 is a double-channel 1553B board card, and the communication board card 5 is an RS422 communication board card. The CPU board card 1 is connected with the single-channel board card 2, the double-channel board card 3 and the communication board card 5 through buses, the single-channel board card 2 and the double-channel board card 3 are respectively connected onto the coupler board card 4 in a crossing manner through matched cables, the coupler board card 4 is connected onto a 1553B module of the single-unit-to-be-tested 7 in a crossing manner through matched cables, the control module of the single-unit-to-be-tested 7 transmits data to the communication board card 5 through a communication protocol, and the output end of the power supply and distribution system 6 is connected with the testing device and the single-unit-to-be-tested.
The CPU board card 1, the display, the keyboard and the mouse form an upper computer together for data processing, and has the functions of parameter setting, system self-checking, manual operation and automatic operation according to the flow, and issues corresponding instructions to the single-channel 1553B board card 2, the double-channel 1553B board card 3 and the RS422 communication board card 5. The single-channel 1553B board card 2 and the double-channel 1553B board card 3 simulate BC to send specific 1553B messages, and the messages are sent to a single unit 7 to be tested after transformer coupling is carried out through the coupler board card 4. The RS422 communication board card 5 sends command words and code synchronous signals to the single machine 7 to be tested, and after the single machine 7 to be tested responds, the 1553B message is analyzed, and command signals are generated and output to the RS422 communication board card 5. The RS422 communication board card 5 transmits the data back to the CPU board card 1, the upper computer software processes the data file, and the working state of the single machine 7 to be tested is automatically judged through the comparison of the received value and the set value of the single machine 7 to be tested.
Claims (8)
1. A bus testing device, characterized in that: the system comprises a CPU board card (1), a single-channel board card (2), a double-channel board card (3), a coupler board card (4), a communication board card (5) and a power supply and distribution system (6); the CPU board card (1) is connected with the single-channel board card (2), the double-channel board card (3) and the communication board card (5) through buses, the single-channel board card (2) and the double-channel board card (3) are respectively connected to the coupler board card (4) in a bridging mode through matched cables, the coupler board card (4) is connected to a 1553B module of a single unit (7) to be tested in a bridging mode through matched cables, the control module of the single unit (7) to be tested transmits data to the communication board card (5) through cables according to a communication protocol, and the output end of the power supply and distribution system (6) is connected with the testing device and the single unit to be tested.
2. A bus testing apparatus according to claim 1, wherein: the main control software of the CPU board card (1) is communicated with the single-channel board card (2), the double-channel board card (3) and the communication board card (5) through the cPCI bus, and receives the uploaded data of the communication board card (5) for analysis and display.
3. A bus testing apparatus according to claim 2, wherein: the CPU board card (1) selects a four-core processor and is provided with 2 Ethernet ports 10/100/1000, 3 USB interfaces and 1 DVI interface.
4. A bus testing apparatus according to claim 1, wherein: the single-channel board card (2) is a single-channel 1553B board card, is provided with an onboard 1M memory, is provided with a cPCI bus interface, and can customize information through upper computer software to perform simulation.
5. A bus testing apparatus according to claim 1, wherein: the dual-channel board card (3) is a dual-channel 1553B board card, each channel is provided with an onboard 1M memory and a cPCI bus interface, and each channel of information can be customized through upper computer software to carry out analog simulation.
6. A bus testing apparatus according to claim 1, wherein: the coupler board card (4) is a high-integration plug-in card coupler, so that 1553B three-channel and single-channel signals can be respectively and independently coupled; the card end interface of the coupler board card (4) is a DB15 connector (8).
7. A bus testing apparatus according to claim 1, wherein: the communication board card (5) selects an RS422 communication board card, adopts a synchronous 422 communication mode, collects the instruction signal of the single machine (7) to be tested and displays the instruction signal on an upper computer interface.
8. A bus testing apparatus according to claim 1, wherein: the input end of the power supply and distribution system (6) is 220V alternating current, and the power supply and distribution system supplies power for the testing device and the tested single machine (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223128658.XU CN219533653U (en) | 2022-11-24 | 2022-11-24 | Bus testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223128658.XU CN219533653U (en) | 2022-11-24 | 2022-11-24 | Bus testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219533653U true CN219533653U (en) | 2023-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223128658.XU Active CN219533653U (en) | 2022-11-24 | 2022-11-24 | Bus testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219533653U (en) |
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2022
- 2022-11-24 CN CN202223128658.XU patent/CN219533653U/en active Active
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