Satellite-borne occultation load system test tool

Abstract

The utility model provides a satellite-borne occultation load system test tool. The satellite-borne occultation load system test tool comprises a positioning antenna, a forward occultation antenna, a backward occultation antenna, an occultation receiver, an installation frame and a mobile vehicle body. The positioning antenna is arranged at the top end of the mounting frame and faces the zenith; the forward occultation antenna and the backward occultation antenna are correspondingly arranged on the two sides of the mounting frame respectively, the forward occultation antenna faces the actual satellite movement direction, and the backward occultation antenna deviates from the actual satellite movement direction; the mounting frame is arranged on the mobile vehicle body, a void body is formed in the mounting frame, and the occultation receiver is arranged in the void body. According to the satellite-borne occultation load system test tool, the occultation load system is fixed according to the actual installation direction, and the system performance test is carried out before satellite installation in advance, so that the operation difficulty is reduced, the system reliability is enhanced, and the cost and the period of later satellite installation debugging are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of satellite-borne occultation load system test, in particular to a satellite-borne occultation load system test tool. Background Art

[0002] The onboard occultation payload system consists of an occultation receiver, a positioning antenna, a forward occultation antenna, a backward occultation antenna and its supporting cables. In order to ensure the rationality and high reliability of the payload system after entering orbit, a series of ground tests are required after the payload system is developed.

[0003] Due to the high cost of satellite platforms and the integration of long-wave infrared cameras, measurement and control data transmission integrated machines, etc., each payload system often needs to be tested separately before the satellite platform. Due to the lack of satellite platforms or integrated tooling, the onboard occultation payload system test often uses a tripod to install and adjust the occultation antenna, and connects it to the occultation receiver through cables to test the performance of the occultation antenna and the occultation receiver. The entire onboard occultation payload system is not installed and tested as a whole according to the satellite status. Summary of the invention

[0004] In view of this, the utility model aims to propose a test fixture for a satellite-borne occultation payload system, so as to solve the problem that the existing test fixture cannot satisfy the overall test of the entire satellite-borne occultation payload system.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The utility model provides a satellite-borne occultation payload system test tool, comprising:

[0007] Positioning antenna, forward occultation antenna, backward occultation antenna, occultation receiver, mounting frame and mobile vehicle;

[0008] The positioning antenna is arranged at the top of the mounting frame and faces the zenith; the forward occultation antenna and the backward occultation antenna are respectively arranged on both sides of the mounting frame, and the forward occultation antenna faces the actual satellite movement direction, and the backward occultation antenna faces away from the actual satellite movement direction;

[0009] The installation frame is arranged on the mobile vehicle body, a hollow cabin is formed inside the installation frame, and the occultation receiver is installed in the hollow cabin.

[0010] Furthermore, the installation frame is arranged in a square structure with a hollow interior, and the top frame, the bottom frame and the two side frames of the installation frame are all arranged in a hollow configuration;

[0011] The center positions of the front frame and the rear frame of the installation frame are solid plates, and the edges of the solid plates are hollowed out.

[0012] Furthermore, the number of the positioning antenna is at least one;

[0013] A plurality of fixing columns are arranged on the partition formed by the hollowing out on the top frame, each of the fixing columns has a threaded hole, and the positioning antenna is arranged on the fixing column by fastening screws passing through the threaded holes;

[0014] In response to the fact that there are multiple positioning antennas, the multiple positioning antennas are arranged at intervals.

[0015] Furthermore, a plurality of mounting holes are provided on the partition formed by the hollowing out on the side frame;

[0016] In response to the forward occultation antenna and the backward occultation antenna being provided in a group, a group of the forward occultation antenna and a group of the backward occultation antenna are installed on the side frame by fastening screws passing through mounting holes.

[0017] Furthermore, in response to the fact that multiple groups of the forward occultation antennas and the backward occultation antennas are provided, the multiple groups of the forward occultation antennas and the multiple groups of the backward occultation antennas are arranged on an adapter frame by fastening screws, and the adapter frame is installed on the side frame by fastening screws passing through mounting holes.

[0018] Furthermore, a plurality of mounting holes are provided on the solid plates of the front frame and the rear frame, and the occultation receiver is arranged on the solid plates by fastening screws passing through the mounting holes.

[0019] Furthermore, the front frame, the rear frame, the top frame, the bottom frame and the two side frames are all fixedly connected by fastening screws;

[0020] The bottom frame is fixedly connected to the moving vehicle body by fastening screws.

[0021] Compared with the prior art, the satellite-borne occultation payload system test tooling described in the utility model has the following beneficial effects:

[0022] The satellite-borne occultation payload system test fixture described in the utility model fixes the occultation payload system according to the actual installation orientation, and performs system performance test in advance before installation, thereby reducing the difficulty of operation, enhancing the reliability of the system, and reducing the cost and cycle of later installation and debugging. In addition, it supports multiple systems to be moved to the field for testing after installation, which greatly improves the efficiency of the field test and reduces the transportation cost and time cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of a test fixture structure of a satellite-borne occultation payload system according to an embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation frame structure according to an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of a test fixture structure of a satellite-borne occultation payload system according to another embodiment of the utility model;

[0027] Figure 4 This is an exploded view of a test tooling for a satellite-borne occultation payload system according to another embodiment of the utility model;

[0028] Figure 5 This is a connection diagram of the positioning antenna, the forward occultation antenna, the backward occultation antenna, and the occultation receiver described in an embodiment of the utility model.

[0029] Description of reference numerals:

[0030] 1-positioning antenna; 2-forward occultation antenna; 3-backward occultation antenna; 4-occultation receiver; 5-installation frame; 51-front frame; 52-rear frame; 53-top frame; 54-bottom frame; 55-side frame; 56-fixing column; 57-adapter frame; 6-mobile body. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] See also Figure 1 As shown, this embodiment provides a test fixture for a satellite-borne occultation payload system, including:

[0034] Positioning antenna 1, forward occultation antenna 2, backward occultation antenna 3, occultation receiver 4, mounting frame 5 and mobile vehicle 6;

[0035] The positioning antenna 1 is arranged at the top of the mounting frame 5 and faces the zenith; the forward occultation antenna 2 and the backward occultation antenna 3 are respectively arranged on both sides of the mounting frame 5, and the forward occultation antenna 2 faces the actual satellite movement direction, and the backward occultation antenna 3 deviates from the actual satellite movement direction;

[0036] The mounting frame 5 is arranged on the mobile vehicle body 6, and a hollow cabin is formed inside the mounting frame 5, and the occultation receiver 4 is installed in the hollow cabin.

[0037] Specifically, in this embodiment, the electrical connection relationship between the positioning antenna 1, the forward occultation antenna 2, the backward occultation antenna 3, and the occultation receiver 4 is as follows: Figure 5 As shown, the positioning antenna 1 receives GNSS wireless signals in the zenith direction of the satellite, the occultation antenna receives GNSS occultation signals in the forward / backward direction of the satellite flight, and the occultation receiver 4 includes functions such as precise positioning and orbit determination, occultation, etc.

[0038] A plurality of installation areas are divided on the installation frame 5, and the positioning antenna 1, the forward occultation antenna 2, the backward occultation antenna 3, and the occultation receiver 4 are integrated in each area of ​​the installation frame 5. The installation frame 5 is set on the mobile vehicle body 6. On the basis of completing the test verification of the entire occultation payload system, the test flexibility and mobility of the test tooling are improved.

[0039] The satellite-borne occultation payload system test fixture described in this embodiment fixes the occultation payload system according to the actual installation orientation, and performs system performance testing in advance before installation, thereby reducing the difficulty of operation, enhancing system reliability, and reducing the cost and cycle of later installation and debugging. In addition, it supports moving multiple systems to field testing after installation, greatly improving the efficiency of field testing and reducing transportation costs and time costs.

[0040] In some embodiments, Figure 2 As shown, the installation frame 5 is arranged in a square structure with a hollow interior, and the top frame 53, the bottom frame 54 and the two side frames 55 of the installation frame 5 are all arranged in a hollow configuration;

[0041] The center positions of the front frame 51 and the rear frame 52 of the installation frame 5 are solid plates, and the edges of the solid plates are hollowed out;

[0042] The front frame 51, the rear frame 52, the top frame 53, the bottom frame 54 and the two side frames 55 are all fixedly connected by fastening screws;

[0043] The bottom frame 54 is fixedly connected to the moving vehicle body 6 by fastening screws.

[0044] Specifically, in this embodiment, each board is provided with a threaded hole for installing a corresponding antenna or a single machine, so that the corresponding antenna or a single machine can be directly fixed and installed by screws. The installation frame 5 is screwed together by a front frame 51, a rear frame 52, a top frame 53, a bottom frame 54 and two side frames 55. Each support plate structure adopts a frame type similar to the whole star, which is convenient for weight reduction and threading while meeting the strength. The side frame 55, the front frame 51 and the rear frame 52 are designed and processed in the same way, and do not need to be processed and assembled separately; at the same time, the installation area of ​​the front frame 51 and the rear frame 52 and the occultation receiver 4 is designed as a solid board to facilitate heat dissipation. At the same time, the entire system is installed on the mobile vehicle 6, which can realize the flexible mobility of the entire system.

[0045] In some embodiments, the number of the positioning antenna 1 is at least one;

[0046] A plurality of fixing columns 56 are arranged on the hollow partition formed on the top frame 53. A threaded hole is arranged in each fixing column 56. The positioning antenna 1 is arranged on the fixing column 56 by fastening screws passing through the threaded holes.

[0047] In response to the fact that there are multiple positioning antennas 1 , the multiple positioning antennas 1 are arranged at intervals.

[0048] Specifically, in the present embodiment, the number of positioning antennas 1 is one or three, a support column is provided on the partition on the top frame 53, and a threaded hole is opened in the support column. The positioning antenna 1 is fixed to the top frame 53 by fastening screws. The support column is used to support the positioning antenna 1 and is kept at a certain distance from the top frame 53 to avoid interference with the screws fixing the top frame 53.

[0049] In some embodiments, a plurality of mounting holes are provided on the partition formed by the hollowing out of the side frame 55;

[0050] like Figure 1 As shown, in response to the forward occultation antenna 2 and the backward occultation antenna 3 being provided with a group, a group of the forward occultation antenna 2 and a group of the backward occultation antenna 3 are mounted on the side frame 55 by fastening screws passing through the mounting holes;

[0051] like Figure 3 and Figure 4 As shown, in response to the forward occultation antenna 2 and the backward occultation antenna 3 being provided with multiple groups, the multiple groups of forward occultation antenna 2 and the multiple groups of backward occultation antenna 3 are arranged on the adapter frame 57 by fastening screws, and the adapter frame 57 is installed on the side frame 55 by fastening screws passing through the mounting holes.

[0052] Specifically, in this embodiment, Figure 3 and Figure 4 As shown, on the basis of being able to install one set of occultation payload systems, multiple sets can be installed. Specifically, the front and rear frames 52 of the installation frame 5 have mounting holes for three sets of occultation receivers 4, and three sets of occultation receivers 4 can be installed at the same time. The top frame 53 can be installed with three sets of positioning antennas 1 at the same time, and the two side frames 55 can complete the installation of three sets of forward occultation antennas 2 or rearward occultation antennas 3 through two adapter frames 57. This tooling can install three sets of occultation payload systems at the same time, which is convenient for testing and verification of the three systems at the same time.

[0053] In some embodiments, a plurality of mounting holes are provided on the solid plates of the front frame 51 and the rear frame 52, and the occultation receiver 4 is arranged on the solid plates by fastening screws passing through the mounting holes.

[0054] Specifically, in this embodiment, the occultation receiver 4 is mounted on a physical board, which can effectively dissipate the heat generated by the occultation receiver 4 during the test process, thereby ensuring the stable operation of the test system.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A test fixture for a satellite-borne occultation payload system, characterized in that: include: Positioning antenna, forward occultation antenna, backward occultation antenna, occultation receiver, mounting frame and mobile vehicle; The positioning antenna is arranged at the top of the mounting frame and faces the zenith; the forward occultation antenna and the backward occultation antenna are respectively arranged on both sides of the mounting frame, and the forward occultation antenna faces the actual satellite movement direction, and the backward occultation antenna faces away from the actual satellite movement direction; The installation frame is arranged on the mobile vehicle body, a hollow cabin is formed inside the installation frame, and the occultation receiver is installed in the hollow cabin.

2. The satellite-borne occultation payload system test fixture according to claim 1, characterized in that: The installation frame is in the form of a square structure with a hollow interior, and the top frame, the bottom frame and the two side frames of the installation frame are all in the form of hollow structures; The center positions of the front frame and the rear frame of the installation frame are solid plates, and the edges of the solid plates are hollowed out.

3. The satellite-borne occultation payload system test fixture according to claim 2, characterized in that: The number of the positioning antenna is at least one; A plurality of fixing columns are arranged on the partition formed by the hollowing out on the top frame, each of the fixing columns has a threaded hole, and the positioning antenna is arranged on the fixing column by fastening screws passing through the threaded holes; In response to the fact that there are multiple positioning antennas, the multiple positioning antennas are arranged at intervals.

4. The satellite-borne occultation payload system test fixture according to claim 2, characterized in that: The partition formed by the hollowing out on the side frame is provided with a plurality of mounting holes; In response to the forward occultation antenna and the backward occultation antenna being provided in a group, a group of the forward occultation antenna and a group of the backward occultation antenna are installed on the side frame by fastening screws passing through mounting holes.

5. The satellite-borne occultation payload system test fixture according to claim 4, characterized in that: In response to the fact that there are multiple groups of the forward occultation antennas and the backward occultation antennas, the multiple groups of the forward occultation antennas and the multiple groups of the backward occultation antennas are arranged on an adapter frame by fastening screws, and the adapter frame is installed on the side frame by fastening screws passing through mounting holes.

6. The satellite-borne occultation payload system test fixture according to claim 2, characterized in that: A plurality of mounting holes are provided on the solid plates of the front frame and the rear frame, and the occultation receiver is arranged on the solid plates by fastening screws passing through the mounting holes.

7. The satellite-borne occultation payload system test fixture according to claim 2, characterized in that: The front frame, the rear frame, the top frame, the bottom frame and the two side frames are fixedly connected by fastening screws; The bottom frame is fixedly connected to the moving vehicle body by fastening screws.

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