CN106557632B - Rapid universal design method for cable network of satellite GNC semi-physical simulation system - Google Patents
Rapid universal design method for cable network of satellite GNC semi-physical simulation system Download PDFInfo
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- CN106557632B CN106557632B CN201611031139.8A CN201611031139A CN106557632B CN 106557632 B CN106557632 B CN 106557632B CN 201611031139 A CN201611031139 A CN 201611031139A CN 106557632 B CN106557632 B CN 106557632B
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- G06F30/18—Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
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Abstract
The invention discloses a cable network rapid universal design method of a satellite GNC semi-physical simulation system, which comprises the following steps: classifying the electrical interfaces of each single machine and test equipment in the satellite GNC semi-physical simulation system according to signal types, and adopting the same connector for the electrical interfaces of the same signal type; and defining the joint of the plug-in unit, and making the length of the cable connected with the plug-in unit into a preset length to complete the design of the cable network. The invention designs the non-uniform interfaces of the single machines of the satellite GNC semi-physical simulation system uniformly according to the signal types, improves the repeated utilization rate of the cable, improves the flexibility of the single machines of the satellite GNC system accessing the cable network of the semi-physical system, shortens the development period of the cable network, reduces the development cost of the cable network, and is more convenient for future maintenance and use.
Description
Technical Field
the invention relates to the technical field of cable network design of a satellite GNC semi-physical simulation system, in particular to a fast and universal cable network, which improves the repeated utilization rate and reliability of the cable network of the satellite GNC semi-physical simulation system, shortens the development period and reduces the development cost of the cable network of the whole satellite GNC semi-physical simulation system.
Background
The satellite GNC system mainly comprises a GNC computer, a GNC computer lower computer, a flywheel, a digital solar angle meter, an analog solar angle meter, a satellite sensor, a ground sensor and other single machines, and the connector assembly of each single machine and the contents of contact signals in the connector assembly are different. The development of a satellite GNC semi-physical simulation test system cable network is an important work. Requiring the designer to devote more time and effort. At present, the GNC semi-physical simulation test system cable network is almost completely customized, the test cables of all satellite models cannot be used universally, and the cables need to be newly developed for each model, so that great waste is caused from design to production. And newly-developed cables are easy to make mistakes, and relate to the complicated processes of redesigning, development, modification, re-verification test and the like, so that the development period of a cable network is long, and the cost is very high. In the prior art, cable networks are seriously crossed, and great promotion requirements are provided for the repeated utilization rate, the development period and the like of the cable networks.
At present, the development of satellite GNC semi-physical simulation system cable networks develops a set of semi-physical simulation cable networks for each satellite model, and the universality of the cable networks is not fully considered in the development process of the cable networks, so that the whole cable network is scrapped when a project is finished, and the recycling rate of the cable networks is insufficient. Furthermore, with the increase of satellite model tasks, the rapidity, the universality and the flexibility of the GNC semi-physical simulation test system cable network development need to be improved so as to meet the requirements of various model development tasks.
disclosure of Invention
the invention aims to provide a rapid universal design method for a cable network of a satellite GNC semi-physical simulation system, which is characterized in that interfaces of units of the satellite GNC semi-physical simulation system which are not unified are uniformly designed according to signal types, so that the repeated utilization rate of cables is improved, the flexibility of the single unit of the satellite GNC system accessing the cable network of the semi-physical system is improved, the development period of the cable network is shortened, the development cost of the cable network is reduced, and the cable network is more convenient to maintain and use in the future.
In order to achieve the purpose, the invention is realized by the following technical scheme: a cable network rapid universal design method of a satellite GNC semi-physical simulation system is characterized by comprising the following steps:
Classifying the electrical interfaces of each single machine and test equipment in the satellite GNC semi-physical simulation system according to signal types, and adopting the same connector for the electrical interfaces of the same signal type;
And defining the joint of the plug-in unit, and making the length of the cable connected with the plug-in unit into a preset length to complete the design of the cable network.
The cable network rapid generalized design method further comprises the following steps:
And designing a step of prolonging the length of the cable, and configuring according to the requirement of a test site of the satellite GNC semi-physical simulation system.
the cable network rapid generalized design method further comprises the following steps:
And designing the switching cable, wherein if a newly researched stand-alone machine exists in the satellite GNC semi-physical simulation system, the switching cable is designed according to an electrical interface of the newly researched stand-alone machine.
The classifying the electrical interface by signal type includes:
the electric interface is divided into a power supply interface, a communication interface and an analog quantity acquisition interface.
the communication interface adopts a DB9 connector.
The analog quantity acquisition interface adopts a DB62 connector.
The power supply interface comprises a 5-volt power supply interface and a 28-volt power supply interface.
The 5V power supply interface adopts a J14A-9 connector.
The 28V power supply interface adopts a J36A-9 connector.
Compared with the prior art, the cable network rapid universal design method of the satellite GNC semi-physical simulation system has the following advantages: the GNC semi-physical simulation system cable network can classify each single machine according to signals and switch different single machine interfaces into a unified interface, and the flexibility of a single machine access system can be greatly improved in the process of developing the GNC semi-physical cable network and even the whole GNC semi-physical equipment; due to the universality of the cable network, the life cycle of the cable is prolonged, and the cable network cannot be scrapped due to the end of a certain project; the stand-alone interface and the test equipment interface are subjected to standardized and unified interface design according to signal categories, all cables except a newly-researched interface single machine can be universal, the GNC cable network only needs to design a new stand-alone adapter cable, the maximum reutilization of the cables is achieved, the design period of the cable network is shortened, and meanwhile, the cable network can be produced in large batch, so that the development cost of the cable network can be reduced.
Drawings
FIG. 1 is a schematic diagram of individual units switching according to signal type;
FIGS. 2A and 2B are schematic diagrams of the J14A-9 connector, respectively, of the 5V power interface;
FIGS. 3A and 3B are schematic diagrams of the J36A-9 connector, respectively, for a 28V power interface;
FIGS. 4A and 4B are schematic diagrams of a DB9 connector, respectively, for the 422 communication interface;
FIGS. 5A and 5B are schematic diagrams of the analog acquisition interface DB62 connector, respectively;
FIGS. 6A-6D are schematic views of an extension cable;
Fig. 7A-7D are schematic diagrams of a cable network of a satellite GNC semi-physical simulation system in an embodiment of the invention.
Detailed Description
The present invention will now be further described by way of the following detailed description of a preferred embodiment thereof, taken in conjunction with the accompanying drawings.
A cable network rapid generalization design method of a satellite GNC semi-physical simulation system comprises the following steps:
And S1, classifying the electrical interfaces of the single machines and the test equipment in the satellite GNC semi-physical simulation system according to signal types, and adopting the same connector for the electrical interfaces of the same signal type, as shown in FIG. 1.
Classifying the electrical interface by signal type includes: the electrical interface is divided into a power supply interface, a communication interface and an analog quantity acquisition (telemetering and ground measuring) interface. Wherein, the power supply interface comprises a 5V (volt) power supply interface and a 28V power supply interface. The cable network of the GNC semi-physical simulation system has no requirement on weight, adopts a conventional connector in consideration of cost, and is a J14A-9 connector, a J36A-9 plug, a DB9 plug, a DB62 plug and the like which are low in price, stable, reliable and convenient to use. In the present embodiment, the 5V power interface employs a J14A-9 connector, as shown in fig. 2A and 2B; the 28V power supply interface adopts a J36A-9 connector, as shown in figures 3A and 3B; the communication interface employs a DB9 connector, as shown in fig. 4A and 4B; the analog acquisition interface employs a DB62 connector, as shown in fig. 5A and 5B. The number of the single 5V power supply units is small, so that the number of J14A-9 connectors is small, and the common J36A-9 connectors and DB9 connectors are mainly used in the whole cable network, thereby bringing convenience to the use process.
s2, defining the contact of the plug-in unit, and making the length of the cable connected with the plug-in unit into a preset length to complete the design of the cable network.
In this embodiment, the cable lengths are all produced in 4m batches. The selected connector is used for each signal type, and the connection points are uniformly defined. The power supply (with larger current and strong current) and the signal (with small current and weak point) are separately designed, the definition of the contact is unified, and the signal content is distinguished from the connector type, so that the wrong insertion of the connector type is prevented. For communication cables, the cable joints are defined consistently and have interchangeability, even if the connector is connected in a wrong serial mode, the single machine is not affected substantially, and the safety of the single machine product in the test process of the whole satellite GNC semi-physical simulation system is ensured.
as shown in FIG. 2A, the points 1 and 2 of the J14A-9TK connector of the 5V power supply single machine are 5V +, and the points 8 and 9 are Grounded (GND); as shown in FIG. 2B, the points 1 and 2 of the J14A-9ZJ connector, which is supplied with a single power at 5V, are 5V +, and the points 8 and 9 are Grounded (GND).
As shown in FIG. 3A, the 1, 2 points of the J36A-9TK connector of the 5V power supply single machine are 28V +, and the 8, 9 points are Grounded (GND); as shown in FIG. 3B, the points 1 and 2 of the J36A-9ZJ connector, which is a 28V power supply unit, are 5V +, and the points 8 and 9 are Grounded (GND).
As shown in fig. 4A, 1, 2 points of DB9 connector (hole type) of the communication interface are respectively receiving from the computer, and 3, 4 points are respectively sending from the computer, sending to the computer; as shown in fig. 3B, points 1 and 2 of the DB9 connector (pin type) of the communication interface are respectively send to the computer, and points 3 and 4 are respectively receive from the computer and receive from the computer.
As shown in FIG. 5A, 1-50 contacts of DB62 connectors (hole type) of the analog acquisition interface correspond to signals 1-50, and 51-62 correspond to GND of the signals; as shown in FIG. 5B, the 1-50 contacts of the DB62 connector (needle type) of the analog acquisition interface correspond to the signals 1-50, and the 51-62 correspond to the GND of the signals.
in this embodiment, it is preferable that the method further comprises a step of designing an extended cable length, which is configured according to the requirement of the test site of the satellite GNC semi-physical simulation system. A plurality of extension cables with the specifications of 5V power supply, 28V power supply, serial port communication and analog quantity acquisition are manufactured, particularly when a test site is changed, as shown in FIGS. 6A-6D, a product is placed on special equipment to cause the need of cable extension, and at the moment, the extension cables can be immediately accessed according to actual needs to be configured into proper cables.
in this embodiment, it is preferable that the method further comprises a step of designing the patch cable, if there is a new vendor in the satellite GNC semi-physical simulation system, according to an electrical interface of the new vendor.
generally, a single machine product used by the satellite GNC semi-physical simulation system can select a mature single machine when inheritance is considered, the whole satellite GNC semi-physical simulation system increasingly adopts a spectrum product, and as long as the spectrum product is adopted, a spectrum product-based cable can be continuously used as an electrical interface is not changed. And as long as the signal types are consistent, the whole cable network can be accessed, and the reutilization of the cable network is ensured to the greatest extent. Due to the cable standardization, the entire satellite GNC system semi-physical simulation cable network does not need to be redesigned. If a newly-researched single machine exists in the satellite GNC semi-physical simulation system, the switching cable is designed according to the electrical interface of the newly-researched single machine, and the switching cable of the newly-researched single machine is designed uniformly according to the universal definition interface, so that the design is more convenient than the design of the whole cable network.
In the testing process of the satellite GNC semi-physical simulation system, due to the fact that testing, troubleshooting, single machine replacement and the like are conducted, interchange and comparison testing can be conducted flexibly, and great convenience is brought to system testing.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (7)
1. A cable network rapid generalization design method of a satellite GNC semi-physical simulation system is characterized by comprising the following steps:
classifying electrical interfaces of each single machine and test equipment in the satellite GNC semi-physical simulation system according to signal types, wherein the electrical interfaces are divided into a power supply interface, a communication interface and an analog quantity acquisition interface, and the power supply interface is divided into a 5-volt power supply interface and a 28-volt power supply interface; for the electrical interfaces of the same signal type, the same connector is adopted;
And defining the joint of the plug-in unit, and making the length of the cable connected with the plug-in unit into a preset length to complete the design of the cable network.
2. The method of claim 1, further comprising:
And designing a step of prolonging the length of the cable, and configuring according to the requirement of a test site of the satellite GNC semi-physical simulation system.
3. The method of claim 1, further comprising:
And designing the switching cable, wherein if a newly researched stand-alone machine exists in the satellite GNC semi-physical simulation system, the switching cable is designed according to an electrical interface of the newly researched stand-alone machine.
4. The method as claimed in claim 2, wherein the communication interface is DB9 connector.
5. The method as claimed in claim 2, wherein the analog acquisition interface is a DB62 connector.
6. The method of claim 2, wherein the 5 volt power supply interface is a J14A-9 connector.
7. The method of claim 2, wherein the 28 volt power supply interface is a J36A-9 connector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611031139.8A CN106557632B (en) | 2016-11-22 | 2016-11-22 | Rapid universal design method for cable network of satellite GNC semi-physical simulation system |
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| CN201611031139.8A CN106557632B (en) | 2016-11-22 | 2016-11-22 | Rapid universal design method for cable network of satellite GNC semi-physical simulation system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110442043B (en) * | 2019-08-14 | 2022-12-20 | 上海卫星工程研究所 | Real-time-semi-physical flexible simulation test system for satellite GNC system |
| CN110781635A (en) * | 2019-09-27 | 2020-02-11 | 上海航天控制技术研究所 | Rapid automatic design method and system for complex system contact list |
| CN111103810B (en) * | 2019-12-25 | 2023-04-14 | 北京控制工程研究所 | Spacecraft GNC system simulation test method based on prototype digital twins framework |
| CN112836351B (en) * | 2021-01-11 | 2023-03-10 | 上海利正卫星应用技术有限公司 | Design method and system for sine vibration test of commercial microsatellite satellite-mounted product |
| CN113761688A (en) * | 2021-09-10 | 2021-12-07 | 上海卫星工程研究所 | Method for batch production of small satellite cable networks |
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