Solar array unfolding in-place signal channel test method and system

Abstract

The invention provides a solar array unfolding in-place signal channel test method and system, and the method comprises the steps: S1, simplifying a solar array unfolding in-place signal circuit on a solar array, and determining the resistance value of a fixed-value resistor in the unfolding in-place signal circuit according to a simplification result; s2, testing the conduction performance of a contact when the solar array driving mechanism is unfolded in place; s3, connecting the solar array driving mechanism with the data management single machine through a cable, and switching a connector assembly where a signal of unfolding the solar array driving mechanism in place is located to a cable test switching box; s4, starting up the data management single machine, and testing the open-circuit voltage of the unfolding in-place signal; s5, a fixed-value resistor is connected in series between positive and negative contacts of the cable test transfer box, and a digital tube single machine telemetry displays that the solar array is not unfolded in place; and S6, connecting a lead between the positive and negative contacts of the cable test transfer box in series, and displaying that the solar array is unfolded in place through telemetering of a digital tube single machine. According to the invention, the problem of incomplete test coverage of the telemetering channel before the solar array is installed on the satellite is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of solar array deployment in place signal testing, and in particular to a solar array deployment in place signal channel testing method and system. Background Art

[0002] The solar array deployment signal is a key telemetry for satellites, which is an important criterion for the success of satellite launches and an important criterion for ground simulation flight procedures. Satellite ground tests are generally carried out in the following order: first, a desktop joint test between platform products is carried out. After the joint test is completed, the platform products are installed on the satellite for testing, followed by key payload installation tests; after the entire system has been tested, large antennas, solar arrays, etc. are installed on the satellite. Therefore, when the solar array is installed, the satellite has completed most of the ground test items, and some satellites are even in the critical period of transferring to the launch site. If the design error of the solar array deployment signal channel is found during the solar array installation, it will seriously affect the model development plan and even affect the model's launch mission.

[0003] At present, there is a lack of clear requirements for the test time and test methods for the signal test of the solar array. The solar array is installed late, and when a path error is found during the installation, on the one hand, technical investigation is required, which wastes manpower and material resources. On the other hand, problems are found in the late stage of testing, which will seriously affect the progress of model development.

[0004] At present, there is no unified standard for the test method of the solar array deployment signal. Patents similar to this patent include:

[0005] The invention patent with publication number CN108802534A discloses a method for testing the transmission channel performance of the solar array drive mechanism. After half of the entire satellite power passes through the drive mechanism power channel, it is partially transferred outside the cabin and transmitted to the satellite through the remaining power channel. In this way, the full channel of the drive mechanism can be tested. This patent only tests the power channel and does not test the signal channel.

[0006] The invention patent with publication number CN102983383A provides a new type of deployment lock device, which can achieve deployment and locking of the antenna to be deployed through a rotating device, a blocking device, and a rebound prevention device. This patent only optimizes the trigger device of the deployment signal, and does not test the full channel of the deployment signal.

[0007] The invention patent with publication number CN104443446A provides a high-rigidity deployment-in-place locking device, which realizes the high-rigidity deployment-in-place locking function of the deployment mechanism through an upper bracket, a lower bracket, at least one locking hook and at least one locking tongue assembly. The deployment and locking movement is simple, the movement accuracy requirement is low, and the locking reliability is high. This patent only optimizes the trigger device of the deployment-in-place signal, and does not test the full channel of the deployment-in-place signal.

[0008] The utility model patent with publication number CN204831331U discloses a door closing signal detection device, which includes a circuit box, a contactor, a connection reset structure and a push block. The circuit box and the contactor are connected by the connection reset structure. When the door leaf is closed, the push block can be pushed to slide in the slide slot and push the contactor to separate from the circuit box, changing the switch state of the signal detection circuit. Thus, a door leaf closing signal can be issued. This patent only optimizes the trigger device of the unfolding in place signal, and does not test the full channel of the unfolding in place signal.

[0009] The invention with publication number CN114802821A discloses a solar wing deployment locking device, which effectively improves the reliability of solar array deployment locking. This patent only optimizes the trigger device of the deployment in place signal, and does not test the full channel of the deployment in place signal.

[0010] The invention patent with publication number CN102318197A discloses a wireless receiver and its test method, which can process the data of each channel separately or jointly by multiple test channels, effectively improving the test efficiency. This patent only processes the data of a single channel, and does not perform matching test of the signal in all channels.

[0011] The invention patent with publication number CN110450980A uses the simulated solar sensor on the solar array as a sensor, the solar array drive mechanism as an actuator, and the control calculation as a controller to form an on-board closed-loop control to achieve precise pointing of the solar array to the sun. This patent only describes the use of simulated solar sensors and does not perform matching tests on all signal channels.

[0012] The invention patent with publication number CN113761654A calculates the offset angle of the solar array according to the actual power used, so that the output power of the solar array matches the power used, solving the problem of single-unit overheating caused by excessive output power of solar cells in the early stage of the Mars orbiter entering orbit. This patent only tests the matching of the solar array output and power efficiency, and does not perform matching tests on the entire signal channel. Summary of the invention

[0013] In view of the defects in the prior art, the present invention provides a method and system for testing a solar array deployment signal channel.

[0014] According to a method and system for testing a solar array deployment signal channel provided by the present invention, the scheme is as follows:

[0015] In a first aspect, a method for testing a solar array deployment signal channel is provided, the method comprising:

[0016] Step S1: simplifying the solar array deployment in place signal circuit on the solar array, and determining the resistance value of the fixed resistor in the deployment in place signal circuit according to the simplified result;

[0017] Step S2: testing the conduction performance of the contacts of the solar array drive mechanism when it is deployed;

[0018] Step S3: Connect the solar array drive mechanism and the digital tube stand-alone machine through cables, and transfer the connector where the solar array drive mechanism deployment position signal is located to the cable test transfer box;

[0019] Step S4: Turn on the digital tube unit and perform an open circuit voltage test of the unfolded position signal;

[0020] Step S5: After the voltage test is completed, the fixed value resistor described in step 1 is connected in series between the positive and negative contacts of the cable test adapter box, and the digital tube stand-alone telemetry shows that the solar array is not deployed in place, completing the deployment in place signal in place test;

[0021] Step S6: insert a wire in series between the positive and negative contacts of the cable test adapter box, that is, short-circuit the circuit, and the digital tube single-machine telemetry shows that the solar array has been deployed, completing the deployment signal in place test.

[0022] Preferably, step S1 comprises: simplifying the solar array deployment in place signal circuit according to the resistor connection relationship and the micro switch position in the solar array circuit, thereby obtaining the simplified deployment in place signal circuit connection status of the solar array; when a fixed value resistor is connected in series to the simplified circuit, the solar array is in a deployment incomplete state; when a wire is connected in series to the circuit, that is, it is short-circuited, the solar array is in a deployment in place state.

[0023] Preferably, step S2 comprises: transferring the signal connectors at both ends of the driving mechanism into a cable test adapter box, determining the contact number of the deployment in place signal on the cable adapter box according to the point number of the connector, and performing a one-to-one conduction and insulation test on the contact points related to the deployment in place signal of the front and rear solar arrays of the driving mechanism;

[0024] The signal enters from the connector at one end of the drive mechanism and leaves from the connector at the other end; during the test, the two electrical connectors at both ends of the drive mechanism used to transmit the deployment in place signal are connected to two cable test adapter boxes respectively. Each point number of the connector after passing through the adapter box corresponds to an operable point on the cable test adapter box, and the point number on the cable test adapter box is the same as the point number of the connector. The transmission content of the point numbers on the two connectors is queried, and the two pairs of positive and negative points of the deployment in place signals of the two cable test adapter boxes are connected in series with a multimeter respectively, and adjusted to the resistance range. If the measured resistance value is less than 5Ω, the point numbers of the solar array deployment in place signals in the two connectors are conductive, that is, the conductive performance of the deployment in place signal contacts of the solar array drive mechanism is normal.

[0025] Preferably, the step S3 comprises: connecting the cable between the drive mechanism unit and the digital tube unit according to the point number of the cable connector, and connecting the deployment position signal connector at the other end of the drive mechanism to the cable test adapter box.

[0026] Preferably, step S4 includes: powering on the entire satellite, starting the digital tube stand-alone machine through remote control commands, determining the corresponding contacts on the drive mechanism adapter box according to the transmission content of each point on the drive mechanism connector, finding the positive and negative electricity of the deployment in place signal, and connecting a multimeter in series between the two points and adjusting it to the voltage gear, measuring the voltage value between the positive and negative contacts of the deployment in place signal, and if the measured voltage value is the same as the output voltage of the digital tube stand-alone machine, the deployment in place signal open circuit voltage test is completed.

[0027] In a second aspect, a solar array deployment signal channel testing system is provided, the system comprising:

[0028] Module M1: Simplify the solar array deployment in place signal circuit on the solar array, and determine the resistance value of the fixed resistor in the deployment in place signal circuit according to the simplified result;

[0029] Module M2: Test the conduction performance of the contacts of the solar array drive mechanism when it is deployed;

[0030] Module M3: Connect the solar array drive mechanism and the digital tube stand-alone machine through cables, and transfer the connector where the solar array drive mechanism deployment position signal is located to the cable test transfer box;

[0031] Module M4: Turn on the digital tube unit and conduct an open circuit voltage test of the unfolded position signal;

[0032] Module M5: After the voltage test is completed, the fixed value resistor described in step 1 is connected in series between the positive and negative contacts of the cable test adapter box. The digital tube single machine telemetry shows that the solar array is not deployed in place, and the deployment in place signal is not in place test;

[0033] Module M6: A wire is inserted in series between the positive and negative contacts of the cable test adapter box to short-circuit the circuit. The digital tube telemetry shows that the solar array has been deployed, completing the deployment signal deployment status test.

[0034] Preferably, the module M1 comprises: simplifying the solar array deployment in place signal circuit according to the resistor connection relationship and the micro switch position in the solar array circuit, thereby obtaining the simplified deployment in place signal circuit connection status of the solar array; when a fixed value resistor is connected in series to the simplified circuit, the solar array is in a deployment incomplete state; when a wire is connected in series to the circuit, that is, it is short-circuited, the solar array is in a deployment in place state.

[0035] Preferably, the module M2 comprises: transferring the signal connectors at both ends of the driving mechanism into the cable test adapter box, determining the contact number of the deployment in place signal on the cable adapter box according to the point number of the connector, and performing a one-to-one conduction insulation test on the contact points related to the deployment in place signal of the front and rear end solar arrays of the driving mechanism;

[0036] The signal enters from the connector at one end of the drive mechanism and leaves from the connector at the other end; during the test, the two electrical connectors at both ends of the drive mechanism used to transmit the deployment in place signal are connected to two cable test adapter boxes respectively. Each point number of the connector after passing through the adapter box corresponds to an operable point on the cable test adapter box, and the point number on the cable test adapter box is the same as the point number of the connector. The transmission content of the point numbers on the two connectors is queried, and the two pairs of positive and negative points of the deployment in place signals of the two cable test adapter boxes are connected in series with a multimeter respectively, and adjusted to the resistance range. If the measured resistance value is less than 5Ω, the point numbers of the solar array deployment in place signals in the two connectors are conductive, that is, the conductive performance of the deployment in place signal contacts of the solar array drive mechanism is normal.

[0037] Preferably, the module M3 comprises: connecting the cable between the drive mechanism unit and the digital tube unit according to the point number of the cable connector, and connecting the deployment position signal connector at the other end of the drive mechanism to the cable test adapter box.

[0038] Preferably, the module M4 includes: powering on the entire satellite, starting the digital tube stand-alone machine through remote control commands, determining the corresponding contacts on the drive mechanism adapter box according to the transmission content of each point on the drive mechanism connector, finding the positive and negative electricity of the deployment in place signal, and connecting a multimeter in series between the two points and adjusting it to the voltage gear, measuring the voltage value between the positive and negative contacts of the deployment in place signal, and if the measured voltage value is the same as the output voltage of the digital tube stand-alone machine, the deployment in place signal open circuit voltage test is completed.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] 1. The present invention checks the open circuit voltage of the deployment signal path before the deployment signal test, providing a test basis for the design compliance of the solar array deployment signal circuit;

[0041] 2. The present invention can check the authenticity of the connection relationship between the model ring of the solar array drive mechanism and the corresponding cable bundle;

[0042] 3. The solar array drive mechanism of the present invention is externally connected to a transfer box, and the test is performed through the transfer box to improve the safety of the test;

[0043] 4. The present invention provides a reference for the test of the solar array deployment signal channel of subsequent satellite models, which can ensure the effectiveness and safety of the test and is suitable for the deployment signal test of satellites with solar array drive mechanisms.

[0044] Other beneficial effects of the present invention will be explained in the specific implementation manner through the introduction of specific technical features and technical solutions. Through the introduction of these technical features and technical solutions, those skilled in the art should be able to understand the beneficial technical effects brought about by the technical features and technical solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0046] Figure 1 This is the circuit diagram of the solar array deployment signal;

[0047] Figure 2 This is a simplified diagram of the solar array deployment signal;

[0048] Figure 3 This is a schematic diagram of the solar array not yet fully deployed;

[0049] Figure 4 This is a diagram of the solar array being deployed. DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0051] The embodiment of the present invention provides a method for testing a solar array deployment signal channel. Figure 1 As shown, the method specifically includes the following contents:

[0052] Step S1: simplify the solar array deployment signal circuit on the solar array, and determine the resistance of the fixed resistor in the deployment signal circuit according to the simplified result. The circuit simplification in this embodiment refers to: removing the acquisition chip and electrical connector on the signal path, and only retaining the power supply voltage, cable, and solar array resistance.

[0053] According to the resistor connection relationship and the micro switch position in the solar array circuit, the solar array deployment signal circuit is simplified to obtain the simplified deployment signal circuit connection of the solar array. When a fixed value resistor is connected in series to the simplified circuit, the solar array is in a deployment incomplete state. When a wire is connected in series to the circuit, that is, it is short-circuited, the solar array is in a deployment complete state.

[0054] Step S2: Test the conduction performance of the solar array drive mechanism deployed in place contacts. Transfer the signal connectors at both ends of the drive mechanism into the cable test adapter box, determine the contact number of the deployed in place signal on the cable adapter box according to the point number of the connector, and perform a one-to-one conduction insulation test on the front and rear end solar array deployed in place signal related contacts of the drive mechanism.

[0055] The drive mechanism can be simply regarded as a transmission channel. The signal enters from the connector at one end and leaves from the connector at the other end. During the test, the two electrical connectors at both ends of the drive mechanism used to transmit the deployment in place signal are connected to two cable test adapter boxes respectively. Each point number of the connector after passing through the adapter box corresponds to an operable point on the cable test adapter box, and the point number on the cable test adapter box is the same as the point number of the connector. The transmission content of the point numbers on the two connectors is queried, and the two pairs of positive and negative points of the deployment in place signals of the two cable test adapter boxes are connected in series with a multimeter respectively, and adjusted to the resistance range. If the measured resistance is less than 5Ω, the point numbers of the solar array deployment in place signals in the two connectors are conductive, that is, the conductivity performance of the deployment in place signal contacts of the solar array drive mechanism is normal. Among them, the cable test transfer box is a connector testing equipment. When checking the connector point number, in order to prevent the risk of bent needles caused by direct contact of the connector on a single machine, the connector is usually transferred to the cable test transfer box. Each point on the original connector is transferred to the operable point of the cable test transfer box, and the content of each point of the cable test transfer box is the same as that of the connector.

[0056] Step S3: Connect the solar array drive mechanism and the digital tube stand-alone through a cable, and transfer the connector where the solar array drive mechanism is deployed to the cable test adapter box. Specifically, according to the point number of the cable connector, connect the cable between the drive mechanism stand-alone and the digital tube stand-alone, and connect the deployment signal connector at the other end of the drive mechanism to the cable test adapter box. That is, one of the two electrical connectors at both ends of the drive mechanism for transmitting the deployment signal is connected to the digital tube computer through a cable, and the other is connected to the cable test adapter box. Among them, the digital tube stand-alone is the telemetry acquisition unit of the spacecraft, and both the positive and negative lines of the telemetry signal need to be sent to the digital tube stand-alone.

[0057] Step S4: Turn on the digital tube stand-alone machine and conduct an open circuit voltage test of the deployed signal. Power on the entire satellite, turn on the digital tube stand-alone machine through remote control commands, determine the corresponding contacts on the drive mechanism adapter box according to the transmission content of each point on the drive mechanism connector, find the positive and negative electricity of the deployed signal, and connect a multimeter in series between the two points, and adjust it to the voltage gear, measure the voltage value between the positive and negative contacts of the deployed signal, and if the measured voltage value is the same as the output voltage of the digital tube stand-alone machine, the open circuit voltage test of the deployed signal is completed. After the open circuit voltage test is completed, remove the multimeter.

[0058] Step S5: After the voltage test is completed, the fixed value resistor described in step 1 is connected in series between the positive and negative contacts of the cable test adapter box, and the digital tube stand-alone telemetry shows that the solar array is not deployed in place, completing the deployment in place signal in place test;

[0059] Step S6: insert a wire in series between the positive and negative contacts of the cable test adapter box, that is, short-circuit the circuit, and the digital tube single-machine telemetry shows that the solar array has been deployed, completing the deployment signal in place test.

[0060] The present invention also provides a solar array deployed in place signal channel test system, which can be implemented by executing the process steps of the solar array deployed in place signal channel test method, that is, those skilled in the art can understand the solar array deployed in place signal channel test method as a preferred implementation of the solar array deployed in place signal channel test system. The system specifically includes:

[0061] Module M1: Simplify the solar array deployment signal circuit on the solar array, and determine the resistance of the fixed resistor in the deployment signal circuit according to the simplified result. The circuit simplification in this embodiment refers to: removing the acquisition chip and electrical connector on the signal path, and only retaining the power supply voltage, cable, and solar array resistance.

[0062] According to the resistor connection relationship and the micro switch position in the solar array circuit, the solar array deployment signal circuit is simplified to obtain the simplified deployment signal circuit connection of the solar array. When a fixed value resistor is connected in series to the simplified circuit, the solar array is in a deployment incomplete state. When a wire is connected in series to the circuit, that is, it is short-circuited, the solar array is in a deployment complete state.

[0063] Module M2: Test the conduction performance of the solar array drive mechanism deployed in place contacts. Transfer the signal connectors at both ends of the drive mechanism into the cable test adapter box, determine the contact number of the deployed in place signal on the cable adapter box according to the point number of the connector, and perform one-to-one conduction insulation tests on the related contacts of the solar array deployed in place signal at the front and rear ends of the drive mechanism.

[0064] The drive mechanism can be simply regarded as a transmission channel. The signal enters from the connector at one end and leaves from the connector at the other end. During the test, the two electrical connectors at both ends of the drive mechanism used to transmit the deployment in place signal are connected to two cable test adapter boxes respectively. Each point number of the connector after passing through the adapter box corresponds to an operable point on the cable test adapter box, and the point number on the cable test adapter box is the same as the point number of the connector. The transmission content of the point numbers on the two connectors is queried, and the two pairs of positive and negative points of the deployment in place signals of the two cable test adapter boxes are connected in series with a multimeter respectively, and adjusted to the resistance range. If the measured resistance is less than 5Ω, the point numbers of the solar array deployment in place signals in the two connectors are conductive, that is, the conductivity performance of the deployment in place signal contacts of the solar array drive mechanism is normal. Among them, the cable test transfer box is a connector testing equipment. When checking the connector point number, in order to prevent the risk of bent needles caused by direct contact of the connector on a single machine, the connector is usually transferred to the cable test transfer box. Each point on the original connector is transferred to the operable point of the cable test transfer box, and the content of each point of the cable test transfer box is the same as that of the connector.

[0065] Module M3: Connect the solar array drive mechanism and the digital tube stand-alone through a cable, and transfer the connector where the solar array drive mechanism's deployment position signal is located to the cable test adapter box. Specifically, according to the point number of the cable connector, connect the cable between the drive mechanism stand-alone and the digital tube stand-alone, and connect the deployment position signal connector at the other end of the drive mechanism to the cable test adapter box. That is, one of the two electrical connectors at both ends of the drive mechanism for transmitting the deployment position signal is connected to the digital tube computer through a cable, and the other is connected to the cable test adapter box. Among them, the digital tube stand-alone is the telemetry acquisition unit of the spacecraft, and both the positive and negative lines of the telemetry signal need to be sent to the digital tube stand-alone.

[0066] Module M4: Turn on the digital tube stand-alone machine and conduct an open circuit voltage test of the deployed signal. Power on the entire satellite, turn on the digital tube stand-alone machine through remote control commands, determine the corresponding contacts on the drive mechanism adapter box according to the transmission content of each point on the drive mechanism connector, find the positive and negative electricity of the deployed signal, and connect a multimeter in series between the two points, and adjust it to the voltage range, measure the voltage value between the positive and negative contacts of the deployed signal, and if the measured voltage value is the same as the output voltage of the digital tube stand-alone machine, the open circuit voltage test of the deployed signal is completed. After the open circuit voltage test is completed, remove the multimeter.

[0067] Module M5: After the voltage test is completed, the fixed value resistor described in step 1 is connected in series between the positive and negative contacts of the cable test adapter box. The digital tube single machine telemetry shows that the solar array is not deployed in place, and the deployment in place signal is not in place test;

[0068] Module M6: A wire is inserted in series between the positive and negative contacts of the cable test adapter box to short-circuit the circuit. The digital tube telemetry shows that the solar array has been deployed, completing the deployment signal deployment status test.

[0069] Next, the present invention will be described in more detail.

[0070] Step 1: Simplify the solar array deployment signal circuit on the solar array structure and mechanism, and determine the resistance value of the fixed resistor in the deployment signal circuit according to the simplified result; take a satellite solar array deployment signal circuit as an example (see Figure 1 As shown in the figure, R1 and R2 are both 35KΩ. After simplification, the sun deployment signal circuit can be simplified to: Figure 2 As shown, the simplified expansion-in-place signal fixed resistance is 70KΩ.

[0071] Step 2: Use two adapter boxes to connect the two sides of the drive mechanism respectively to test the conduction performance of the contacts of the solar array drive mechanism when it is deployed;

[0072] Step 3, connect the cable between the drive mechanism and the digital tube stand-alone machine, and transfer the signal connector of the drive mechanism to the cable test transfer box;

[0073] Step 4: Power on the satellite, start the digital tube, and use the cable transfer box to deploy the signal to the open circuit voltage of 5V;

[0074] Step 5: Connect the 70KΩ resistor in series to the corresponding contact of the cable test adapter box to obtain the voltage value of the solar array deployment signal of 5V. The telemetry shows that the solar array is not deployed in place. Figure 3 As shown;

[0075] Step 6: Connect a wire to the corresponding contact of the cable test adapter box, and get the voltage value of the solar array deployment signal to be 0V. The telemetry shows that the solar array has been deployed. Figure 4 shown.

[0076] The embodiments of the present invention provide a method and system for testing a solar array deployment signal channel, which can complete the verification of the deployment signal channel before the solar array is installed with satellites, solve the problem of incomplete coverage of telemetry channel testing before the solar array is installed with satellites, verify the accuracy of the interface in advance, and effectively reduce the probability of discovering interface errors in the late stage of the test, saving manpower and material resources and reducing time costs.

[0077] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0078] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A method for testing a solar array deployment signal channel, characterized in that: include: Step S1: simplifying the solar array deployment in place signal circuit on the solar array, and determining the resistance value of the fixed resistor in the deployment in place signal circuit according to the simplified result; Step S2: testing the conduction performance of the contacts of the solar array drive mechanism when it is deployed; Step S3: Connect the solar array drive mechanism and the digital tube stand-alone machine through cables, and transfer the connector where the solar array drive mechanism deployment position signal is located to the cable test transfer box; Step S4: Turn on the digital tube unit and perform an open circuit voltage test of the unfolded position signal; Step S5: After the voltage test is completed, the fixed value resistor described in step 1 is connected in series between the positive and negative contacts of the cable test adapter box, and the digital tube stand-alone telemetry shows that the solar array is not deployed in place, completing the deployment in place signal in place test; Step S6: insert a wire in series between the positive and negative contacts of the cable test adapter box, that is, short-circuit the circuit, and the digital tube single-machine telemetry shows that the solar array has been deployed, completing the deployment signal in place test.

2. The method for testing the solar array deployment signal channel according to claim 1, characterized in that: The step S1 comprises: simplifying the solar array deployment in place signal circuit according to the resistor connection relationship and the micro switch position in the solar array circuit, thereby obtaining the simplified deployment in place signal circuit connection status of the solar array; when a fixed value resistor is connected in series to the simplified circuit, the solar array is in a deployment incomplete state; when a wire is connected in series to the circuit, that is, it is short-circuited, the solar array is in a deployment in place state.

3. The method for testing the solar array deployment signal channel according to claim 1, characterized in that: The step S2 comprises: transferring the signal connectors at both ends of the driving mechanism into the cable test adapter box, determining the contact number of the deployment in place signal on the cable adapter box according to the point number of the connector, and performing a one-to-one conduction and insulation test on the contact points related to the deployment in place signal of the front and rear solar arrays of the driving mechanism; The signal enters from the connector at one end of the drive mechanism and leaves from the connector at the other end; during the test, the two electrical connectors at both ends of the drive mechanism used to transmit the deployment in place signal are connected to two cable test adapter boxes respectively. Each point number of the connector after passing through the adapter box corresponds to an operable point on the cable test adapter box, and the point number on the cable test adapter box is the same as the point number of the connector. The transmission content of the point numbers on the two connectors is queried, and the two pairs of positive and negative points of the deployment in place signals of the two cable test adapter boxes are connected in series with a multimeter respectively, and adjusted to the resistance range. If the measured resistance value is less than 5Ω, the point numbers of the solar array deployment in place signals in the two connectors are conductive, that is, the conductive performance of the deployment in place signal contacts of the solar array drive mechanism is normal.

4. The method for testing the solar array deployment signal channel according to claim 1, characterized in that: The step S3 comprises: connecting the cable between the drive mechanism unit and the digital tube unit according to the point number of the cable connector, and connecting the deployment position signal connector at the other end of the drive mechanism to the cable test adapter box.

5. The method for testing the solar array deployment signal channel according to claim 1, characterized in that: The step S4 comprises: powering on the whole satellite, starting the digital tube stand-alone machine through remote control commands, determining the corresponding contacts on the drive mechanism adapter box according to the transmission content of each point on the drive mechanism connector, finding the positive and negative voltages of the deployment in place signal, connecting a multimeter in series between the two points, and adjusting it to the voltage gear, measuring the voltage value between the positive and negative contacts of the deployment in place signal, and if the measured voltage value is the same as the output voltage of the digital tube stand-alone machine, the deployment in place signal open circuit voltage test is completed.

6. A solar array deployment signal channel test system, characterized in that: include: Module M1: Simplify the solar array deployment in place signal circuit on the solar array, and determine the resistance value of the fixed resistor in the deployment in place signal circuit according to the simplified result; Module M2: Test the conduction performance of the contacts of the solar array drive mechanism when it is deployed; Module M3: Connect the solar array drive mechanism and the digital tube stand-alone machine through cables, and transfer the connector where the solar array drive mechanism deployment position signal is located to the cable test transfer box; Module M4: Turn on the digital tube unit and conduct an open circuit voltage test of the unfolded position signal; Module M5: After the voltage test is completed, the fixed value resistor described in step 1 is connected in series between the positive and negative contacts of the cable test adapter box. The digital tube single machine telemetry shows that the solar array is not deployed in place, and the deployment in place signal is not in place test; Module M6: A wire is inserted in series between the positive and negative contacts of the cable test adapter box to short-circuit the circuit. The digital tube telemetry shows that the solar array has been deployed, completing the deployment signal deployment status test.

7. The solar array deployment signal channel test system according to claim 6, characterized in that: The module M1 comprises: simplifying the solar array deployment in place signal circuit according to the resistor connection relationship and the micro switch position in the solar array circuit, thereby obtaining the simplified deployment in place signal circuit connection status of the solar array; when a fixed value resistor is connected in series to the simplified circuit, the solar array is in a deployment incomplete state; when a wire is connected in series to the circuit, that is, it is short-circuited, the solar array is in a deployment in place state.

8. The solar array deployment signal channel test system according to claim 6, characterized in that: The module M2 includes: transferring the signal connectors at both ends of the driving mechanism into the cable test adapter box, determining the contact number of the deployment in place signal on the cable adapter box according to the point number of the connector, and performing a one-to-one conduction and insulation test on the relevant contacts of the deployment in place signal of the front and rear solar arrays of the driving mechanism; The signal enters from the connector at one end of the drive mechanism and leaves from the connector at the other end; during the test, the two electrical connectors at both ends of the drive mechanism used to transmit the deployment in place signal are connected to two cable test adapter boxes respectively. Each point number of the connector after passing through the adapter box corresponds to an operable point on the cable test adapter box, and the point number on the cable test adapter box is the same as the point number of the connector. The transmission content of the point numbers on the two connectors is queried, and the two pairs of positive and negative points of the deployment in place signals of the two cable test adapter boxes are connected in series with a multimeter respectively, and adjusted to the resistance range. If the measured resistance value is less than 5Ω, the point numbers of the solar array deployment in place signals in the two connectors are conductive, that is, the conductive performance of the deployment in place signal contacts of the solar array drive mechanism is normal.

9. The solar array deployment signal channel test system according to claim 6, characterized in that: The module M3 includes: connecting the cable between the drive mechanism unit and the digital tube unit according to the point number of the cable connector, and connecting the expansion position signal connector at the other end of the drive mechanism to the cable test adapter box.

10. The solar array deployment signal channel test system according to claim 6, characterized in that: The module M4 includes: powering on the entire satellite, starting the digital tube stand-alone machine through remote control commands, determining the corresponding contacts on the drive mechanism adapter box according to the transmission content of each point on the drive mechanism connector, finding the positive and negative electricity of the deployment in place signal, and connecting a multimeter in series between the two points and adjusting it to the voltage gear, measuring the voltage value between the positive and negative contacts of the deployment in place signal, and if the measured voltage value is the same as the output voltage of the digital tube stand-alone machine, the deployment in place signal open circuit voltage test is completed.

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