Test apparatus simulating the dual-source satellite power supply channel for the electrical connection of the satellite connector plug.

Abstract

This invention provides a test device for simulating a dual-source satellite power supply channel for the electrical connection of a satellite array connector. The device includes: a system for adapting the satellite array connector to an equivalent device on a general satellite platform; a power supply channel simulation test device capable of providing a simulated array power load circuit to verify the correctness of the satellite-to-ground power supply path; dual input interfaces for the satellite array connector and ground cable; and support for testing when the satellite-to-ground adapter cable is not in place. The device's front panel is designed to simulate both satellite array connectors and related ground connectors, accommodating equivalent satellite platform tests even in the absence of a satellite-to-ground adapter cable. The device also implements the acquisition and switching of different signals, and through reasonable connector placement and internal wiring design, it adapts to the equivalent device on a general satellite platform.

Description

Technical Field

[0001] This invention relates to the technical field of equivalent testing of satellite platforms, and more specifically, to a test apparatus for simulating a dual-source satellite power supply channel for electrical connections of satellite array plugs. Background Technology

[0002] With the increasing number of satellite testing missions, higher efficiency is required for pre-test preparations, especially for satellite platform equivalence testing. This equivalence testing needs to support both the initial and subsequent testing of the satellite-to-ground connection cable.

[0003] Currently, there are numerous satellite testing devices in China that can perform a variety of testing functions, but none of them can simultaneously meet the aforementioned testing requirements for equivalent satellite platform tests.

[0004] This invention is a satellite testing device designed to solve the aforementioned problems. Currently, no descriptions or reports of similar technologies have been found, and no similar domestic or international materials have been collected.

[0005] Therefore, a new technical solution is needed to improve the above-mentioned technical problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a test device for simulating a dual-source satellite power supply channel for the electrical connection of a satellite array plug.

[0007] A test apparatus for simulating a dual-source satellite power supply channel in a satellite array plug electrical connection according to the present invention includes:

[0008] Simulated satellite array connector: Installed on the front panel of the device, it is used to simulate the satellite array connector, connect the satellite-to-ground adapter cable, and realize the simulation of the satellite-to-ground channel;

[0009] Ground power supply channel connector: Installed on the front panel of the device, it connects to the power supply cable of the ground power supply equipment to enable the detection of the ground power supply channel;

[0010] Ground signal acquisition and control channel connector: Installed on the front panel of the device, it connects to the ground industrial control computer to realize the acquisition of ground analog signals and control of contact signals;

[0011] Universal satellite platform equivalent device connector: Installed on the rear panel of the device, it transfers the satellite table protection plug status and bus voltage analog signals simulated by the universal satellite platform equivalent device to the transmitter control console contact quantity acquisition interface.

[0012] Internal cables: used for connecting connectors on the front and rear panels, as well as for connecting high-power resistors;

[0013] High-power resistors: used to protect the path of the general satellite equivalent device for detecting the power supply current.

[0014] Preferably, the device acquires 10 power supply signals and converts 15 passive contacts, 2 holding contacts, 3 instantaneous contacts, and 3 analog signals.

[0015] Preferably, the acquisition of the 10 power supply signals includes the acquisition of the voltage of the ground power supply line by the equivalent device of the general satellite platform.

[0016] Preferably, the switching of the 15 passive contact signals includes indications for the satellite-rocket separation flight plug, solar array pyrotechnics flight plug, antenna pyrotechnics flight plug, self-locking valve flight plug, intelligent management flight plug, attitude and orbit control ground test flight plug, power supply and distribution test flight plug, inter-satellite laser hot knife flight plug, drive mechanism motor flight plug, and limit switch status feedback.

[0017] Preferably, the switching of the two holding contact signals includes a power controller separation signal and an intelligent management unit separation signal.

[0018] Preferably, the transfer of the three instantaneous contact signals includes a discharge switch to turn off the wired command.

[0019] Preferably, the switching of the three analog signals includes bus voltage, platform bus voltage, and battery pack voltage.

[0020] Preferably, the device further includes electromagnetic compatibility design, including a well-planned circuit board layout, the use of power isolation and signal isolation methods, a fully enclosed aluminum alloy housing, and the use of shielded wires as external connection cables.

[0021] Preferably, the front panel of the device is designed with two connection modes: one is to connect the ground power supply channel and the ground signal acquisition and control channel to the satellite node through the external satellite-to-ground adapter cable when there is an external satellite-to-ground adapter cable; the other is to connect the ground power supply channel and the ground signal acquisition and control channel to the ground power supply channel connector and the ground signal acquisition and control channel connector respectively when there is no external satellite-to-ground adapter cable.

[0022] Preferably, the internal cable is designed to match the different signal sizes required to meet different current sizes, and the layout of the internal cable and the twisting method of the cable are designed.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The device of the present invention has a front panel that is designed to simulate both satellite table connectors and ground-related connectors, which can accommodate equivalent satellite platform tests in the absence of satellite-to-ground transition cables.

[0025] 2. The device in this invention realizes the acquisition and switching of different signals. By designing reasonable connector points and internal circuits, it is compatible with equivalent devices of general satellite platforms. Attached Figure Description

[0026] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0027] Figure 1 The front panel of a test device for simulating a dual-source satellite power supply channel based on the electrical connection of a satellite array plug, provided by the present invention;

[0028] Figure 2 The rear panel of a test device for simulating a dual-source satellite power supply channel based on the electrical connection of a satellite array plug, provided by the present invention;

[0029] Figure 3 This invention provides a connection diagram for a test device simulating a dual-source satellite power supply channel based on the electrical connection of a satellite array plug. Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0031] Example 1:

[0032] Reference Figure 1 and Figure 2 According to the present invention, a test apparatus for simulating a dual-source satellite power supply channel for a satellite array plug electrical connection includes:

[0033] Simulated satellite array connector: Installed on the front panel of the device, it is used to simulate the satellite array connector, connect the satellite-to-ground adapter cable, and realize the simulation of the satellite-to-ground channel;

[0034] Ground power supply channel connector: Installed on the front panel of the device, it connects to the power supply cable of the ground power supply equipment to enable the detection of the ground power supply channel;

[0035] Ground signal acquisition and control channel connector: Installed on the front panel of the device, it connects to the ground industrial control computer to realize the acquisition of ground analog signals and control of contact signals;

[0036] Universal satellite platform equivalent device connector: Installed on the rear panel of the device, it transfers the satellite table protection plug status and bus voltage analog signals simulated by the universal satellite platform equivalent device to the transmitter control console contact quantity acquisition interface.

[0037] Internal cables: used for connecting connectors on the front and rear panels, as well as for connecting high-power resistors;

[0038] High-power resistors: used to protect the path of the general satellite equivalent device for detecting the power supply current.

[0039] The device acquires 10 power supply signals and converts 15 passive contacts, 2 holding contacts, 3 instantaneous contacts, and 3 analog signals.

[0040] The acquisition of 10 power supply signals includes the acquisition of voltage from ground power supply lines by a general satellite platform equivalent device.

[0041] The 15-channel passive contact signal transfer includes indications for the satellite-rocket separation flight plug, solar array pyrotechnic flight plug, antenna pyrotechnic flight plug, self-locking valve flight plug, intelligent management flight plug, attitude and orbit control ground test flight plug, power supply and distribution test flight plug, inter-satellite laser hot knife flight plug, drive mechanism motor flight plug, and limit switch status feedback.

[0042] The switching of the two-way holding contact signals includes the power controller disconnect signal and the intelligent management unit disconnect signal.

[0043] The transfer of 3 instantaneous contact signals includes the discharge switch to turn off the wired command.

[0044] The three analog signal transfers include bus voltage, platform bus voltage, and battery pack voltage.

[0045] The device also incorporates electromagnetic compatibility design, including a well-planned circuit board layout, the use of power and signal isolation methods, a fully enclosed aluminum alloy housing, and the use of shielded wires as external connection cables.

[0046] The front panel of the device is designed with two connection modes: one is to connect the ground power supply channel and the ground signal acquisition and control channel to the satellite node through the external satellite-to-ground adapter cable when there is an external satellite-to-ground adapter cable; the other is to connect the ground power supply channel and the ground signal acquisition and control channel to the ground power supply channel connector and the ground signal acquisition and control channel connector respectively when there is no external satellite-to-ground adapter cable.

[0047] The internal cables are designed to match different signal strengths to meet different current requirements, and the layout of the internal cables and the twisting method of the cables are also designed.

[0048] Example 2:

[0049] A test apparatus for simulating a dual-source satellite power supply channel based on the electrical connection of a satellite array plug, the apparatus comprising:

[0050] A: Simulated satellite table connector

[101] , the simulated satellite table connector is installed on the front panel of the device, used to simulate the satellite table connector, connect the satellite-to-ground adapter cable, and realize the simulation of the satellite-to-ground channel;

[0051] B: Ground power supply channel connector

[102] , the ground power supply channel connector is installed on the front panel of the device, connects the power supply cable of the ground power supply equipment, and realizes the detection of the ground power supply channel;

[0052] C: Ground signal acquisition and control channel connector

[103] , the ground signal channel connector is installed on the front panel of the device and connected to the ground industrial control computer to realize the acquisition of ground analog signals and control of contact signals;

[0053] D: Universal satellite platform equivalent device connector

[104] , the universal satellite platform equivalent device connector is installed on the rear panel of the device, and transfers the analog signals such as the status of the satellite table protection plug and the bus voltage simulated by the universal satellite platform equivalent device to the control console contact quantity acquisition interface.

[0054] E: Internal cable

[105] , which is used for connecting the connectors on the front and rear panels, as well as for connecting the high-power resistors.

[0055] F: High-power resistor

[106] , the high-power resistor is used to protect the path of the general satellite equivalent device for detecting the power supply current and to prevent the current from being too large.

[0056] To achieve compatibility between the satellite array plug and the equivalent device for a universal satellite interface, a simulated satellite array plug, a universal satellite platform equivalent device plug, and internal adapter cables were designed. To simulate a dual-source satellite power supply channel, ground power supply channel connectors and ground signal acquisition and control channel connectors were designed, along with interfaces for the power supply channel and ground signal acquisition. A simulated satellite array connector was designed on the front panel to enable equivalent testing of a satellite platform with a satellite-to-ground adapter cable. Other ground connectors were also designed on the front panel to enable equivalent testing of a satellite platform without a satellite-to-ground adapter cable. Internal cables were designed to match different signal strengths and current requirements. The internal cable layout and twisted-pair configuration were designed to avoid electromagnetic interference between different signals, based on the anti-interference requirements of different signals.

[0057] According to the present invention, a test device for simulating a dual-source satellite power supply channel based on the electrical connection of a satellite array plug is provided, which realizes the acquisition of 10 power supply signals and the conversion of 15 passive contacts, 2 holding contacts, 3 instantaneous contacts, and 3 analog signals, including:

[0058] A: The acquisition of the 10 power supply signals includes the acquisition of the voltage of the ground power supply line by the equivalent device of the general satellite platform, and the power supply channel is 10 channels;

[0059] B: The switching of the 15 passive contact signals includes the following: star-rocket separation flight plug indication, solar array pyrotechnic 1-6 flight plug indication, solar array pyrotechnic 7-10 flight plug indication, antenna pyrotechnic 1-6 flight plug indication, antenna pyrotechnic 7-10 flight plug indication, self-locking valve flight plug indication, intelligent management flight plug indication, attitude and orbit control ground test flight plug indication, power supply and distribution test flight plug indication, inter-satellite laser hot knife flight plug indication, drive mechanism motor flight plug indication, limit switch 1 status recovery, limit switch 2 status recovery, limit switch 3 status recovery and limit switch 4 status recovery;

[0060] C: The switching of the two holding contact signals includes the power controller separation signal and the intelligent management unit separation signal;

[0061] D: The transfer of the three instantaneous contact signals includes the wired shutdown command of discharge switch 1, the wired shutdown command of discharge switch 2, and the wired shutdown command of discharge switch 3.

[0062] E: The conversion of the three analog signals includes the bus voltage, the 31V platform bus voltage, and the battery pack voltage;

[0063] F: Power supply signal acquisition circuit for a high-power resistor-protected general-purpose satellite platform equivalent device.

[0064] Figure 1 The front panel of the test device for simulating a dual-source satellite power supply channel based on the electrical connection of the satellite array plug provided by the present invention includes a simulated satellite array connector

[101] , a ground power supply channel connector

[102] , and a ground signal acquisition and control channel connector

[103] . There are two cases: Case (1) When there is an external satellite-to-ground adapter cable, the ground power supply channel and the ground signal acquisition and control channel can be transferred to the satellite array node and connected to the simulated satellite array connector

[101] through the external satellite-to-ground adapter cable; Case (2) When there is no external satellite-to-ground adapter cable, the ground power supply channel and the ground signal acquisition and control channel are respectively connected to the ground power supply channel connector

[102] and the ground signal acquisition and control channel connector

[103] .

[0065] Figure 2 The rear panel of the test device for simulating a dual-source satellite power supply channel based on the electrical connection of the satellite array plug provided by the present invention includes a universal satellite platform equivalent device connector

[104] . The universal satellite platform equivalent device connector is connected to the universal satellite platform equivalent device through an external dedicated satellite platform equivalent device adapter cable.

[0066] Figure 3 A connection diagram of a test device for simulating a dual-source satellite power supply channel based on the electrical connection of a satellite array plug, provided by the present invention, includes connectors on the front panel ( Figure 1 ), Rear panel connectors ( Figure 2 ), internal cables

[105] and high-power resistors

[106] .

[0067] The device employs the following electromagnetic measures to meet compatibility requirements: a rationally planned circuit board layout, keeping noise-sensitive circuit sections away from noise sources; power and signal isolation methods for high- and low-voltage physical isolation of internal circuits, and electromagnetic isolation for external communication; a fully enclosed casing design, with the aluminum alloy casing treated with conductive anodizing, and conductive rubber and foam used at the mating surfaces to ensure electrical continuity and reliably shield against external interference sources; good grounding, shielding, and filtering; and shielded conductors for external connection cables.

[0068] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0069] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0070] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A test device for simulating a dual-source satellite power supply channel in the electrical connection of a satellite array plug, characterized in that, include: Simulated satellite array connector: Installed on the front panel of the device, it is used to simulate the satellite array connector, connect the satellite-to-ground adapter cable, and realize the simulation of the satellite-to-ground channel; Ground power supply channel connector: Installed on the front panel of the device, it connects to the power supply cable of the ground power supply equipment to enable the detection of the ground power supply channel; Ground signal acquisition and control channel connector: Installed on the front panel of the device, it connects to the ground industrial control computer to realize the acquisition of ground analog signals and control of contact signals; Universal satellite platform equivalent device connector: Installed on the rear panel of the device, it transfers the satellite table protection plug status and bus voltage analog signals simulated by the universal satellite platform equivalent device to the transmitter control console contact quantity acquisition interface. Internal cables: used for connecting connectors on the front and rear panels, as well as for connecting high-power resistors; High-power resistors: used to protect the path of the general satellite equivalent device for detecting the power supply current.

2. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 1, characterized in that, The device acquires 10 power supply signals and converts 15 passive contacts, 2 holding contacts, 3 instantaneous contacts, and 3 analog signals.

3. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 2, characterized in that, The acquisition of the 10 power supply signals includes the acquisition of the voltage of the ground power supply line by the equivalent device of the general satellite platform.

4. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 2, characterized in that, The 15 passive contact signals include the following: satellite-rocket separation flight plug indication, solar array pyrotechnic flight plug indication, antenna pyrotechnic flight plug indication, self-locking valve flight plug indication, intelligent management flight plug indication, attitude and orbit control ground test flight plug indication, power supply and distribution test flight plug indication, inter-satellite laser hot knife flight plug indication, drive mechanism motor flight plug indication, and limit switch status feedback.

5. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 2, characterized in that, The switching of the two holding contact signals includes the power controller separation signal and the intelligent management unit separation signal.

6. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 2, characterized in that, The transfer of the three instantaneous contact signals includes the discharge switch turning off the wired command.

7. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 2, characterized in that, The switching of the three analog signals includes bus voltage, platform bus voltage, and battery pack voltage.

8. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 1, characterized in that, The device also incorporates electromagnetic compatibility design, including a well-planned circuit board layout, the use of power isolation and signal isolation methods, a fully enclosed aluminum alloy housing, and the use of shielded wires as external connection cables.

9. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 1, characterized in that, The front panel of the device is designed with two connection modes: one is to connect the ground power supply channel and the ground signal acquisition and control channel to the satellite node through the external satellite-to-ground adapter cable when there is an external satellite-to-ground adapter cable. Another approach is to connect the ground power supply channel and the ground signal acquisition and control channel to the ground power supply channel connector and the ground signal acquisition and control channel connector, respectively, in the absence of an external satellite-to-ground adapter cable.

10. The test apparatus for simulating the dual-source satellite power supply channel of the satellite array plug electrical connection according to claim 1, characterized in that, The internal cables are designed to match different signal strengths to meet different current requirements, and the layout of the internal cables and the twisting method of the cables are also designed.

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