CN114325771A - Equivalent connecting device for satellite ground test - Google Patents
Equivalent connecting device for satellite ground test Download PDFInfo
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- CN114325771A CN114325771A CN202111681027.8A CN202111681027A CN114325771A CN 114325771 A CN114325771 A CN 114325771A CN 202111681027 A CN202111681027 A CN 202111681027A CN 114325771 A CN114325771 A CN 114325771A
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Abstract
The invention relates to the technical field of satellite ground test, and provides an equivalent connection device for satellite ground test. The device includes magnetic torquer equivalent circuit, magnetic torquer equivalent circuit's first end and second end and star are connected with the single-machine, magnetic torquer equivalent circuit includes: the first end and the second end of the potentiometer are connected with the acquisition equipment, wherein the resistance value of the potentiometer is adjustable; a first resistor in series with the potentiometer; and a first fuse connected in series with the potentiometer.
Description
Technical Field
The invention relates to the technical field of satellite ground test. In particular, the invention relates to an equivalent connection device for satellite ground test.
Background
The satellite ground test is directly related to the success or failure of the satellite in orbit operation, and is a very key and important ring in the satellite development process. In satellite ground test, the real operation working state of a satellite stand-alone is generally simulated as realistically as possible, and then the interface and function matching between satellite stand-alone systems are reflected.
The attitude and orbit control ground closed loop semi-physical test is the test closest to the on-orbit state in the satellite ground test, wherein a single satellite and ground simulation equipment are connected into a closed loop so as to complete the full-process simulation test from satellite separation to long-term operation. In the current test process, for testing an equivalent analog magnetic torquer and a propulsion working state, a matching load resistor is required to be short-circuited at a driving output end, and the load resistor is a direct-insertion type resistor which is directly pressed on a binding post of a ground acquisition terminal.
However, the pin of the in-line resistor is long, and the internal contacts and channels of the connecting terminal are more, so that lap short circuit is easily caused to damage the single satellite unit and the ground simulation equipment. And the resistance value of the direct-insert resistor is usually fixed, so the resistance value state of the direct-insert resistor and the actual load characteristic of the single satellite unit are possibly different, and the direct-insert resistor is not universal. In addition, the voltage directly collected by the ground simulator from the load resistor may exceed the input voltage range that the ground collection device can bear, so an additional option of configuring a high input range ground collection terminal is usually required, which greatly increases the cost. Moreover, the current load resistor can only be adapted to one connection mode when simulating the push solenoid valve switch, for example, the load resistor can only collect an Open Collector (OC) instruction or a power supply driving state of a distributor, and the flexibility is poor.
Disclosure of Invention
To at least partially solve the above problems in the prior art, the present invention provides an equivalent connection device for satellite ground test, comprising:
magnetic torquer equivalent circuit, its first end and second end and star single-machine connection, magnetic torquer equivalent circuit includes:
the first end and the second end of the potentiometer are connected with the acquisition equipment, wherein the resistance value of the potentiometer is adjustable;
a first resistor in series with the potentiometer; and
a first fuse in series with the potentiometer.
In one embodiment of the invention, it is provided that the equivalent circuit of the magnetic torque device comprises a first and a second voltage measurement point, wherein the first voltage measurement point is connected to a first end of the potentiometer and the second voltage measurement point is connected to a second end of the potentiometer.
In one embodiment of the invention, it is provided that the equivalent connection means comprise:
a plurality of said magnetotorquer equivalent circuits;
the first connector connects the first ends and the second ends of the equivalent circuits of the plurality of magnetic torquers with the single satellite; and
a second connector connecting first and second ends of the plurality of potentiometers with the acquisition device.
In one embodiment of the invention, it is provided that the equivalent connection means comprise:
the propulsion solenoid valve equivalent circuit, its first end and second end with on-satellite single-machine connection, the propulsion solenoid valve equivalent circuit includes:
the first end and the second end of the second resistor are connected with the acquisition equipment;
a third resistor in series with the second resistor; and
a second fuse in series with the second resistor.
In one embodiment of the invention, it is provided that the equivalent connection device further comprises:
a power source;
a double pole single throw switch connecting the power supply to a first end and a second end of the propulsion solenoid equivalent circuit; and
a fourth resistor in series with the double pole, single throw switch.
In one embodiment of the invention, it is provided that the equivalent connection means comprise:
a plurality of said propulsion solenoid equivalent circuits;
a plurality of said double pole single throw switches;
a third connector connecting first and second ends of a plurality of said propulsion solenoid equivalent circuits with a plurality of said double pole single throw switches and said on-board unit; and
a fourth connector connecting first and second ends of the plurality of second resistors with the acquisition device.
In one embodiment of the invention, it is provided that the equivalent connection means comprise:
and the universal plate is provided with the equivalent circuit of the magnetic torquer and/or the equivalent circuit of the propulsion electromagnetic valve.
In one embodiment of the invention, the equivalent connection device is configured to perform a test for acquiring an OC command of a stand-alone satellite when the double-pole single-throw switch is connected.
In one embodiment of the invention, it is provided that the equivalent connection device is configured to perform a test for detecting a star-stand power distributor signal when the double-pole single-throw switch is open.
The invention has at least the following beneficial effects: the invention provides an equivalent connection device for satellite ground test, which has the advantages of adjustable resistance, simplicity, convenience, safety, reliability, suitability for various test scenes and the like. The satellite ground test can effectively protect the satellite single machine and the ground simulation equipment by adopting the device.
Drawings
To further clarify the advantages and features that may be present in various embodiments of the present invention, a more particular description of various embodiments of the invention will be rendered by reference to the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. In the drawings, the same or corresponding parts will be denoted by the same or similar reference numerals for clarity.
Fig. 1 shows a schematic diagram of an equivalent circuit of a magnetotorquer of an equivalent connection device in an embodiment of the invention.
Figure 2 shows a schematic diagram of an equivalent circuit of a propulsion solenoid valve of an equivalent connection arrangement in an embodiment of the invention.
Figure 3 shows a schematic view of a panel of an equivalent connection device in one embodiment of the invention.
Detailed Description
It should be noted that the components in the figures may be exaggerated and not necessarily to scale for illustrative purposes. In the figures, identical or functionally identical components are provided with the same reference symbols.
In the present invention, "disposed on …", "disposed over …" and "disposed over …" do not exclude the presence of an intermediate therebetween, unless otherwise specified. Further, "disposed on or above …" merely indicates the relative positional relationship between two components, and may also be converted to "disposed below or below …" and vice versa in certain cases, such as after reversing the product direction.
In the present invention, the embodiments are only intended to illustrate the aspects of the present invention, and should not be construed as limiting.
In the present invention, the terms "a" and "an" do not exclude the presence of a plurality of elements, unless otherwise specified.
It is further noted herein that in embodiments of the present invention, only a portion of the components or assemblies may be shown for clarity and simplicity, but those of ordinary skill in the art will appreciate that, given the teachings of the present invention, required components or assemblies may be added as needed in a particular scenario. Furthermore, features from different embodiments of the invention may be combined with each other, unless otherwise indicated. For example, a feature of the second embodiment may be substituted for a corresponding or functionally equivalent or similar feature of the first embodiment, and the resulting embodiments are likewise within the scope of the disclosure or recitation of the present application.
It is also noted herein that, within the scope of the present invention, the terms "same", "equal", and the like do not mean that the two values are absolutely equal, but allow some reasonable error, that is, the terms also encompass "substantially the same", "substantially equal". By analogy, in the present invention, the terms "perpendicular", "parallel" and the like in the directions of the tables also cover the meanings of "substantially perpendicular", "substantially parallel".
The numbering of the steps of the methods of the present invention does not limit the order of execution of the steps of the methods. Unless specifically stated, the method steps may be performed in a different order.
The invention is further elucidated with reference to the drawings in conjunction with the detailed description.
In one embodiment of the invention, an equivalent connection device for satellite ground test is provided, and the equivalent connection device can comprise a magnetic torquer equivalent circuit and a propulsion solenoid valve equivalent circuit. The equivalent circuit of the magnetic torquer and/or the equivalent circuit of the propulsion electromagnetic valve can be arranged on a universal plate, and the universal plate with the universal specification is adopted for circuit assembly welding, so that the condition of lap joint short circuit which often occurs in the process of satellite ground test at present can be avoided, and the safety and the reliability in the satellite ground test process are improved.
Fig. 1 shows a schematic diagram of an equivalent circuit of a magnetotorquer of an equivalent connection device in an embodiment of the invention. As shown in fig. 1, the first terminal 101 and the second terminal 102 of the equivalent circuit 100 of the magnetotorquer may be connected to a stand-alone satellite (not shown), and a potentiometer 103, a first resistor 104 and a first fuse 105 may be included between the first terminal 101 and the second terminal 102 of the equivalent circuit 100 of the magnetotorquer.
The first terminal 1031 and the second terminal 1032 of the potentiometer 103 are connected to a collecting device (not shown in the figure), wherein the resistance of the potentiometer 103 is adjustable and can range from 0 to 500 Ω. The potentiometer 103 is adopted to replace a traditional direct-insertion resistor with a fixed resistance value, the resistance value can be adjusted according to parameters of different satellite single machines in satellite ground tests, and the magnetic torquer with different magnetic moment specifications is suitable and has universality.
The first resistor 104 is connected in series with the potentiometer 103, and the first resistor 104 functions as a voltage divider in the equivalent circuit 100 of the magnetotorquer. The resistance of the first resistor 104 is a fixed value, which may be 300 Ω.
The first fuse 105 is connected in series with the potentiometer 103, the rated current of the first fuse 105 can be 1.5 times of the normal working current of the circuit, and when the current in the equivalent circuit 100 of the magnetic torquer is greater than the rated current, the first fuse 105 is fused to protect a single satellite and a collection device.
As shown in fig. 1, the equivalent circuit 100 of the magnetotorquer may further include a first and a second voltage measuring point 106\107, where the first voltage measuring point 106 is connected to the first end 1031 of the potentiometer 103, and the second voltage measuring point 107 is connected to the second end 1032 of the potentiometer. The first and second voltage measuring points 106\107 can be connected with a resistance multimeter and the like for measurement and measurement.
As shown in fig. 1, the equivalent connection device may include a plurality of the magnetic torquer equivalent circuits 100, and the plurality of the magnetic torquer equivalent circuits 100 may form a plurality of paths, and generally, 6 paths are reserved as shown in fig. 1. Although the above embodiment has 6 equivalent magnetic torquer circuits 100 as an example, it should be understood by those skilled in the art that the equivalent magnetic torquer circuits 100 and the number of paths formed by the equivalent magnetic torquer circuits are not limited to the above example, and those skilled in the art can select an appropriate number in practical applications.
As shown in fig. 1, the equivalent connection device may include a first connector 108 and a second connector 109, the first connector 108 may connect the first ends 101 and the second ends 102 of the plurality of magnetic torquer equivalent circuits 100 to the single satellite, and the second connector 109 may connect the first ends 1031 and the second ends 1032 of the plurality of potentiometers 103 to the collection device. The first connector 108 and the second connector 109 may be DB sockets and DB pins.
Figure 2 shows a schematic diagram of an equivalent circuit of a propulsion solenoid valve of an equivalent connection arrangement in an embodiment of the invention. As shown in fig. 2, the first end 201 and the second end 202 of the propulsion solenoid valve equivalent circuit 200 may be connected to the on-board unit, and the second resistor 203, the third resistor 204, and the second fuse 205 may be included between the first end 201 and the second end 202 of the propulsion solenoid valve equivalent circuit 200.
The first end 2031 and the second end 2032 of the second resistor 203 are connected to the collecting apparatus, and the resistance of the second resistor 203 is a fixed value, which may be 5k Ω.
The third resistor 204 is connected in series with the second resistor 203, and the third resistor 204 functions as a voltage divider in the propulsion solenoid equivalent circuit 200. The resistance of the second resistor 203 is a fixed value, which may be 9k omega.
The second fuse 205 is connected in series with the second resistor 203, the rated current of the second fuse 205 can be 1.5 times of the normal operating current of the circuit, and when the current in the equivalent circuit 200 of the propulsion solenoid valve is greater than the rated current, the second fuse 205 is fused to protect the satellite single-machine and the collection equipment.
As shown in fig. 2, the equivalent connection device may further include a power supply 206, a fourth resistor 207, and a double-pole single-throw switch 208.
The double pole single throw switch 208 may connect the power source 206 to the first and second terminals 201, 202 of the propulsion solenoid equivalent circuit 200, and the fourth resistor 207 may be connected in series with the double pole single throw switch 208. The resistance of the fourth resistor 207 is a fixed value, which may be 1k Ω.
When the double-pole single-throw switch 208 is communicated, the power supply can be connected with the propulsion electromagnetic valve equivalent circuit 200 and the satellite single machine, and the equivalent connection device can be used for ground test of the satellite single machine without the power supply, for example, can be used for test for acquiring OC instructions of the satellite single machine. When the double pole single throw switch 208 is open, the equivalent connection device can be used for ground testing of a stand-alone satellite equipped with a power supply, for example, for conducting a test for collecting a distributor signal of the stand-alone satellite. Through the switching of the double-pole single-throw switch 208, the equivalent connection device can be simply and conveniently applied to various ground test scenes.
As shown in fig. 2, the equivalent connection means may include a plurality of the propulsion solenoid equivalent circuits 200 and a plurality of the double pole single throw switches 208. A plurality of passages, 6 passages are shown in fig. 2, and in general 12 passages, 24 passages or another number of passages may be provided, by a plurality of the propulsion solenoid equivalent circuits 200 and a plurality of the double pole single throw switches 208. It should be understood by those skilled in the art that the propulsion solenoid equivalent circuit 200, the double-pole single-throw switch 208 and the number of paths formed by the same are not limited to the above examples, and those skilled in the art can select the appropriate number in practical applications.
As shown in fig. 2, the equivalent connection means may comprise a third connector 209 and a fourth connector 210. The third connector 209 connects the first terminals 201 and the second terminals 202 of the propulsion solenoid equivalent circuits 200 to the double pole single throw switches 208 and the on-board unit. The fourth connector 210 may connect the first and second ends 2031 and 2032 of the plurality of second resistors 203 to the acquisition device.
In the above embodiment, the path of each equivalent circuit 100 of the magnetic torquer or the equivalent circuit 200 of the propulsion solenoid valve is connected in series with the first or second fuse 105\205, and the channels are isolated from each other, so that the safety of the equivalent connection device can be effectively improved, and the single machine on the satellite and the ground simulation equipment can be effectively protected. In addition, the double-pole single-throw switch 208 is introduced into the path of each propulsion electromagnetic valve equivalent circuit 200, so that the paths of a plurality of propulsion electromagnetic valve equivalent circuits 200 can be connected or disconnected at the same time, circuits among channels are completely isolated, and single machines on the satellite and ground simulation equipment are effectively protected.
Figure 3 shows a schematic view of a panel of an equivalent connection device in one embodiment of the invention. As shown in FIG. 3, the panel can be arranged with a plurality of first and second voltage measuring points 106\107 of the equivalent circuit of the magnetic torquer, a plurality of sliding varistors of the potentiometer 103 of the equivalent circuit of the magnetic torquer, and a plurality of double-pole single-throw switches 208 of the equivalent circuit of the solenoid valve.
While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be apparent to persons skilled in the relevant art that various combinations, modifications, and changes can be made thereto without departing from the spirit and scope of the invention. Thus, the breadth and scope of the present invention disclosed herein should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims (9)
1. An equivalent connection device for satellite ground testing, comprising:
magnetic torquer equivalent circuit, its first end and second end and star single-machine connection, magnetic torquer equivalent circuit includes:
the first end and the second end of the potentiometer are connected with the acquisition equipment, wherein the resistance value of the potentiometer is adjustable;
a first resistor in series with the potentiometer; and
a first fuse in series with the potentiometer.
2. The equivalent connection device for the ground test of the satellite according to claim 1, wherein the equivalent circuit of the magnetic torquer comprises a first voltage measuring point and a second voltage measuring point, wherein the first voltage measuring point is connected with a first end of the potentiometer, and the second voltage measuring point is connected with a second end of the potentiometer.
3. The equivalent connection device for terrestrial satellite testing according to claim 1, comprising:
a plurality of said magnetotorquer equivalent circuits;
the first connector connects the first ends and the second ends of the equivalent circuits of the plurality of magnetic torquers with the single satellite; and
a second connector connecting first and second ends of the plurality of potentiometers with the acquisition device.
4. The equivalent connection device for terrestrial satellite testing according to claim 1, comprising:
the propulsion solenoid valve equivalent circuit, its first end and second end with on-satellite single-machine connection, the propulsion solenoid valve equivalent circuit includes:
the first end and the second end of the second resistor are connected with the acquisition equipment;
a third resistor in series with the second resistor; and
a second fuse in series with the second resistor.
5. The equivalent connection device for terrestrial satellite testing according to claim 4, further comprising:
a power source;
a double pole single throw switch connecting the power supply to a first end and a second end of the propulsion solenoid equivalent circuit; and
a fourth resistor in series with the double pole, single throw switch.
6. The equivalent connection device for terrestrial satellite testing according to claim 5, comprising:
a plurality of said propulsion solenoid equivalent circuits;
a plurality of said double pole single throw switches;
a third connector connecting first and second ends of a plurality of said propulsion solenoid equivalent circuits with a plurality of said double pole single throw switches and said on-board unit; and
a fourth connector connecting first and second ends of the plurality of second resistors with the acquisition device.
7. The equivalent connection device for terrestrial satellite testing according to claim 4, comprising:
and the universal plate is provided with the equivalent circuit of the magnetic torquer and/or the equivalent circuit of the propulsion electromagnetic valve.
8. The equivalent connection device for satellite ground test according to claim 6, characterized in that, the equivalent connection device is configured to perform a test for collecting OC instructions of single satellite when the double pole single throw switch is connected.
9. The equivalent connection device for satellite earth testing according to claim 6, characterized in that it is configured to perform a test for collecting the distributor signals of a stand-alone satellite when said double pole single throw switch is open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681027.8A CN114325771A (en) | 2021-12-31 | 2021-12-31 | Equivalent connecting device for satellite ground test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111681027.8A CN114325771A (en) | 2021-12-31 | 2021-12-31 | Equivalent connecting device for satellite ground test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114325771A true CN114325771A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111681027.8A Pending CN114325771A (en) | 2021-12-31 | 2021-12-31 | Equivalent connecting device for satellite ground test |
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| CN (1) | CN114325771A (en) |
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2021
- 2021-12-31 CN CN202111681027.8A patent/CN114325771A/en active Pending
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