A highly reliable separation control system for ejection of an active expansion ball drop device

Abstract

The present invention discloses a highly reliable separation control system for ejection of an active expansion drop ball device, comprising: a power supply battery, a controller and a separation switch; the separation switch is used to sense the separation state of a fairing; the controller senses the axial flight overload of the carrier after takeoff, generates an overload signal after the overload voltage exceeds the rated threshold, performs a two-out-of-three judgment on the overload signal, and outputs a release control instruction after delay processing; the controller receives the separation signal output by the separation switch, performs a two-out-of-three judgment on the separation signal, and outputs a detonation control instruction after delay processing. Using wireless test, launch and control technology, the entire test and launch process can be completed only through a handheld wireless test terminal during the ground test phase, reducing the demand for test sites and effectively improving the test and launch efficiency.

Description

Technical Field

[0001] The invention belongs to the field of electronic information technology, and in particular is a high-reliability separation control system used for ejection of an active expansion ball drop device. Background Art

[0002] The active expansion falling ball device is a technical means for in-situ measurement of high-altitude atmospheric physical parameters. Its main principle is to actively measure the position and motion information of the falling ball through the built-in GPS receiver and other equipment in the falling ball, and then actively transmit the measurement data through the digital transmitter inside the falling ball, so as to invert the atmospheric parameters, which can effectively improve the measurement accuracy of atmospheric parameters.

[0003] According to the experience of previous model development, the active expansion ball measurement device usually appears in the form of a mounted subsystem. In order to eject and release the active expansion ball device according to a predetermined sequence, there are two main traditional solutions: one is to add a separation control system based on the original architecture of the electrical system. The separation control system receives the timing control signal output by the external system through the inter-system interface, thereby realizing the ejection and release of the active expansion ball according to the predetermined sequence; the other is to directly change the design of the onboard flight control computer, add an additional detonation signal output interface, and thereby realize the ejection and release control of the active expansion ball.

[0004] To ensure the reliable implementation of ground testing, traditional separation control systems generally use wired testing methods for ground testing and control. The ground testing equipment is relatively bulky, and the ground testing equipment and test cables need to be laid and removed before and after the test. The test site needs to provide corresponding guarantee conditions and the test efficiency is low.

[0005] In addition, given the system's requirements for weight, volume, and repeatability, the separation control system is usually powered by lithium batteries. In order to charge and maintain the lithium batteries during the ground testing phase, an operating cover needs to be reserved on the carrier's mounting structure, and the charging and maintenance of the lithium batteries must be completed by wire, and the operation process is relatively cumbersome. Summary of the invention

[0006] The technical problem solved by the present invention is: to overcome the shortcomings of the prior art and provide a high-reliability separation control system for the ejection of an active expansion ball device, which can achieve the established separation control function while obtaining the release and detonation timing without the need for additional system interfaces; ground testing and battery equipment maintenance are carried out wirelessly to maximize the testing and maintenance efficiency.

[0007] The technical solution of the present invention is:

[0008] A high-reliability separation control system for ejection of an active expansion ball drop device, comprising: a power supply battery, a controller and a separation switch;

[0009] The power supply battery is used to supply power to the controller;

[0010] The separation switch is used to sense the separation state of the fairing. After the fairing is separated, the separation switch outputs a separation signal to the controller;

[0011] The controller is sensitive to the axial flight overload of the carrier after takeoff. When the overload voltage exceeds the rated threshold, an overload signal is generated, a two-out-of-three judgment is made on the overload signal, and a release control instruction after delay processing is output; the release control instruction is used to release the short-circuit protection of the electric squib equipped with the gas generator;

[0012] The controller receives the separation signal output by the separation switch, performs a two-out-of-three judgment on the separation signal, and outputs a detonation control instruction after delay processing; the detonation control instruction is used to detonate the electric squib equipped with the gas generator, so that the expansion drop ball device pops out and releases from the fairing;

[0013] The controller receives control instructions sent by the ground test, launch and control system through a wireless link to complete the corresponding actions, and transmits the arrow status information back to the ground test, launch and control system through a wireless link.

[0014] Preferably, the controller includes: a power supply control module, a timing acquisition module, a DSP module, a three-judgment-two module, a timing control module and an overload sensor;

[0015] The power supply control module receives the electric energy provided by the power supply battery, performs DC / DC conversion to obtain the corresponding secondary voltage, and then supplies power to the DSP module, the timing control module and the timing acquisition module respectively;

[0016] The overload sensor senses the axial flight overload of the carrier after takeoff, and outputs an overload signal to the timing acquisition module after the overload voltage exceeds the rated threshold;

[0017] The timing acquisition module receives the overload signal output by the overload sensor and the separation signal output by the separation switch; the timing acquisition module amplifies the overload signal and outputs it to the three DSP modules respectively; the timing acquisition module performs optical coupling isolation on the separation signal and outputs it to the three DSP modules respectively;

[0018] After the DSP module effectively judges the received overload signal, it delays the output of the release control instruction to the three-judgment two module; after the DSP module effectively judges the received separation signal, it delays the output of the detonation control instruction to the three-judgment two module;

[0019] The three-judgment-two module receives the control instructions output by the three-way DSP module at the same time, and performs three-judgment-two voting judgment. When any two of the control instructions are valid, the three-judgment-two module will output the corresponding control signal to the timing control module; the control instructions include: release control instructions or detonation control instructions;

[0020] The timing control module receives the release control instruction or the detonation control instruction output by the three-judgment two module; when the timing control module receives the release control instruction, it releases the detonation signal to release the short-circuit protection of the electric squib equipped with the gas generator; when the timing control module receives the detonation control instruction, it outputs the detonation signal to detonate the electric squib equipped with the gas generator, so that the expansion falling ball device pops out and releases from the fairing.

[0021] Preferably, the DSP module is bound with delay parameter A and delay parameter B;

[0022] The delay parameter A is used to ensure that the DSP module outputs the release control instruction at a certain time later than the DSP module receives the overload signal;

[0023] The delay parameter B is used to ensure that the time when the DSP module outputs the detonation control instruction is a certain time later than the time when the DSP module receives the separation signal.

[0024] Preferably, the controller further comprises: a wireless function module and an antenna module;

[0025] The wireless function module receives the control instructions sent by the ground test, launch and control system through the antenna module and transmits them to the DSP module; the wireless function module receives the onboard system working status information output by the DSP module, obtains the radio frequency signal after modulation and amplification, and sends it to the ground test, launch and control system through the antenna module.

[0026] Preferably, the control instructions include: wireless link establishment instructions, wireless link disconnection instructions, arrow system self-check instructions, delay parameter binding instructions and pyrotechnic resistance test instructions; the wireless link establishment instructions and wireless link disconnection instructions are used to connect or disconnect the wireless link between the wireless function module and the ground test and launch control system; the arrow system self-check instructions are used to detect the health status of the DSP module and the output voltage of the power supply control module; the delay parameter binding instructions are used to bind delay parameter A and delay parameter B; the pyrotechnic resistance test instructions are used to detect the resistance of the electric explosion pipe bridge wire equipped with the gas generator;

[0027] The working status information of the on-rocket system includes: the power supply voltage of the power supply control module, the health status of the DSP module, the test results of the resistance value of the electric squib bridge wire, and the execution status of the release control command and the detonation control command.

[0028] Preferably, after receiving the pyrotechnic resistance test instruction, the controller detects the resistance of the electric squib bridge wire equipped with the gas generator, and determines the connection state between the controller and the gas generator by the obtained electric squib bridge wire resistance.

[0029] Preferably, the controller further comprises: an pyrotechnics testing module;

[0030] The pyrotechnics test module is used to provide a constant current source signal for the resistance test of the electric bursting tube bridge wire.

[0031] Preferably, the power supply battery comprises: a battery assembly;

[0032] The battery assembly comprises three parallel-connected battery packs, each of which is provided with a battery cell connected in series.

[0033] Preferably, the high-reliability separation control system further comprises: a wireless charger and a ground coupling device;

[0034] The power supply battery also includes: a charging communication module and an arrow coupling device;

[0035] The wireless charging device is used to provide electric energy to the ground coupling device; the ground coupling device is used to convert electric energy into electromagnetic energy; the arrow coupling device converts the electromagnetic energy output by the ground coupling device into an alternating voltage signal, and then transmits it to the charging communication module; the wireless charging and communication module receives the alternating voltage signal of the arrow coupling device, performs rectification and filtering, and DC / DC conversion processing to obtain the required voltage, and then charges the battery assembly;

[0036] The wireless charging and communication module collects the output voltage of the battery assembly and the output voltage of the battery cell, and converts them into radio frequency signals after modulation and frequency conversion, and transmits them to the on-arrow coupling device; the on-arrow coupling device converts the radio frequency signals output by the charging and communication module into electromagnetic signals, and then radiates them to the ground coupling device for the ground coupling device to monitor the output voltage of the battery assembly and the output voltage of the battery cell in real time.

[0037] The advantages of the present invention compared with the prior art are:

[0038] The system design architecture of the present invention adopts the design concept of "universalization, decoupling, and integration". The system separation control timing can be flexibly adjusted through delay parameter binding according to the use requirements of different tasks; the system architecture design is independent and separation control can be achieved without the need for additional control signal interfaces with external systems, further improving the universality of system applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a block diagram of the separation control system of the present invention. DETAILED DESCRIPTION

[0040] The present invention designs and implements a high-reliability separation control system for the ejection of an active expansion ball device. It adopts a "universal, decoupled, and integrated" design approach and integrates an overload sensor in the on-arrow controller and a separation switch. This allows the acquisition of the release and detonation timing without the need for additional system interfaces. A wireless test and launch control solution is used for ground testing, which effectively improves test efficiency and the adaptability of test support conditions. A wireless charging solution is used for lithium battery charging, making battery maintenance more convenient.

[0041] like Figure 1 As shown, the separation control system of the present invention is mainly composed of a power supply battery 1, a controller 2, a separation switch 3, a wireless charger 6 and a ground coupling device 7.

[0042] The power supply battery 1 is mainly used to supply power to the controller 2, ensuring that the onboard system can work normally in the low-power standby state during ground testing and during flight testing, and complete the established test tasks.

[0043] The power supply battery 1 comprises: a battery assembly 11, a charging communication module 12 and an arrow coupling device 13;

[0044] The battery assembly 11 contains a battery pack formed by connecting three single cells in series and eight in series, which effectively improves the power supply reliability while ensuring that the battery reserve meets the needs of ground and flight tests. Specifically, the battery assembly 11 includes three parallel battery packs, each of which is provided with eight battery cells connected in series.

[0045] The wireless charging and communication module 12 is mainly used to complete wireless charging and near-field communication control. In the wireless charging mode, the wireless charging and communication module 12 receives the alternating voltage signal from the arrow coupling device 13, performs rectification and filtering, and DC / DC conversion to obtain the required voltage and then charges the battery assembly 11; in the near-field communication mode, the wireless charging and communication module 12 collects the combined output voltage and single-cell output voltage of the battery assembly 11, and converts them into corresponding radio frequency signals after modulation and frequency conversion, and transmits them to the arrow coupling device 13.

[0046] The arrow coupling device 13 is mainly used to realize the energy conversion function of wireless charging and near-field communication. Wireless charging energy reception and near-field communication transmission are both realized using independent coils. In the wireless charging mode, the arrow coupling device 13 converts the alternating magnetic energy output by the ground coupling device 7 into an alternating voltage signal, and then transmits it to the charging communication module 12; in the near-field communication mode, the arrow coupling device 13 converts the radio frequency signal output by the charging communication module 12 into an electromagnetic signal, and then radiates it to the ground coupling device 7.

[0047] Controller 2 is the core device of the onboard system. During ground testing, it receives control commands from the handheld wireless test terminal and executes corresponding actions, and transmits onboard status information to the handheld wireless test terminal to complete ground test preparations. During flight testing, it generates release control commands and separation control commands, and completes the release and execution of the detonation signal in sequence.

[0048] The controller 2 includes: a power supply control module 21 , a timing acquisition module 26 , a DSP module 22 , a three-judgment-two module 23 , an pyrotechnics testing module 25 , a timing control module 24 , an overload sensor 27 , a wireless function module 28 and an antenna module 29 .

[0049] The power supply control module 21 is mainly used to complete the voltage conversion and power supply and distribution control functions. During the voltage conversion, the power supply and distribution module 21 receives the electric energy provided by the power supply battery 1, performs DC / DC conversion to obtain the corresponding secondary voltage, and then provides it to the DSP module 22, the timing control module 24, the pyrotechnic test module 25, the timing acquisition module 26 and the wireless function module 28. Before the launch of the carrier, the power supply control module 21 receives the low power consumption and normal working mode switching instructions output by the wireless function module 28, completes the switching of the power supply and distribution control relay, and the power supply control module 21 starts to supply power to the DSP module 22, the timing control module 24, the pyrotechnic test module 25, the timing acquisition module 26 and the wireless function module 28.

[0050] The overload sensor 27 is mainly used to sense the axial flight overload of the carrier after takeoff, convert the overload value into a voltage value, obtain the overload voltage, and output the overload signal to the timing acquisition module 26 after the overload voltage exceeds the rated threshold.

[0051] The separation switch 3 is mainly used to sense the separation timing of the fairing during flight tests and output a separation signal to the controller 2. The separation switch 3 is used to sense the separation state of the fairing. After the fairing is separated, the separation switch outputs a separation signal to the timing acquisition module 26.

[0052] The timing acquisition module 26 is mainly used to receive and collect the overload signal output by the overload sensor 27 and the separation signal generated when the fairing is separated. After receiving the overload signal output by the overload sensor 27, it is amplified and compared and judged. After judging that the overload signal is valid, the isolation optocoupler in the timing acquisition module 26 is driven to output the overload signal to the three DSP modules 22 respectively. After receiving the separation signal output by the separation switch 3, the separation signal is processed by the isolation optocoupler in the timing acquisition module 26 and then output to the three DSP modules 22 respectively.

[0053] The DSP module 22 is mainly used for comprehensive control of the internal operation of the controller 2 device.

[0054] During the ground test, after the DSP module 22 receives the control instruction output by the wireless function module 28 and completes the corresponding action, it sends the arrow system working status information to the wireless function module 28. Among them, the control instructions include: wireless link establishment instructions, wireless link disconnection instructions, arrow system self-test instructions, delay parameter binding instructions and pyrotechnic resistance test instructions. The arrow system working status information includes: the power supply voltage of the power supply control module 21, the health status of the DSP module 22, the arrow system self-test results, the pyrotechnic resistance test results, and the overload, separation instruction reception and detonation signal release and execution status. The wireless link establishment instruction and the wireless link disconnection instruction are used to connect or disconnect the wireless link between the wireless function module 28 and the ground test and launch control system (i.e., the wireless test terminal in this article). The arrow system self-test instruction is used to detect the health status of the DSP module 22 and the output voltage of the power supply control module 21. The delay parameter binding instruction is used to bind delay parameter A and delay parameter B. The pyrotechnic resistance test instruction is used to test the bridge wire resistance of the electric squib on the gas generator 41 .

[0055] During the flight test, each DSP module 22 receives the overload signal output by the timing acquisition module 26, and after the width judgment is valid, it is judged that the overload signal is valid, and then the release control instruction is output to the three judgment modules 23 with a delay. The separation signal output by the timing acquisition module 26 is received, and after the width judgment is valid, it is judged that the separation signal is valid, it is judged that the separation signal is valid, and then the detonation control instruction is output to the three judgment modules 23 with a delay. The output delay of the release control instruction and the detonation control instruction can be set through the parameter binding operation. The delay parameter A and the delay parameter B are bound in the DSP module 22. The delay parameter A is used to ensure that the moment when the DSP module 22 outputs the release control instruction is a certain time later than the moment when the DSP module 22 receives the overload signal. The delay parameter B is used to ensure that the moment when the DSP module 22 outputs the detonation control instruction is a certain time later than the moment when the DSP module 22 receives the separation signal.

[0056] The three-judgment-two module 23 is mainly used to receive the control instructions output by the three-way DSP module 22, and perform three-judgment-two voting judgment. When any two of the three-judgment-two modules are valid, the three-judgment-two module 23 will output the corresponding control signal to the timing control module 24. The control instructions include: release control instructions or detonation control instructions.

[0057] The timing control module 24 is mainly used to complete the resistance test of the explosive device, as well as the release and execution of the detonation signal. The resistance test of the explosive device is used to test the resistance of the bridge wire of the electric squib on the gas generator 41.

[0058] When the resistance test of the pyrotechnic device is carried out in the ground test, the detonation execution relay and the short-circuit protection relay of the electric bursting tube bridge wire are disconnected in the timing control module 24. After the pyrotechnic device test module 25 is incorporated into the detonation path, a constant current source signal for the pyrotechnic device test is provided. The resistance of the electric bursting tube bridge wire is calculated by inversely calculating the voltage drop of the two electric bursting tube bridge wires equipped with the test gas generator 41, and the connection status between the timing control module 24 and the gas generator 41 is determined by the measured value of the resistance of the electric bursting tube bridge wire on the gas generator 41.

[0059] The flight test detonation signal release and execution action sequence work contents are as follows:

[0060] The timing control module 24 receives the release control instruction or the detonation control instruction output by the three-judgment two module 23. When the timing control module 24 receives the release control instruction, the detonation signal is released, the short-circuit protection relay of the electric squib bridge wire in the timing control module 24 is disconnected, and the short-circuit protection processing of the electric squib on the gas generator 41 is released; when the timing control module 24 receives the detonation control instruction, the detonation signal is output, the detonation execution relay in the timing control module 24 is closed, and the timing control module 24 outputs the detonation signal to the two electric squibs equipped with the gas generator 41.

[0061] The pyrotechnic test module 25 is mainly used to provide a safe constant test current to the timing control module 24 when testing the bridge wire resistance of the electric squib on the gas generator 41. The timing control module 24 collects the bridge wire resistance of the electric squib on the gas generator 41 through the constant test current provided by the pyrotechnic test module 25.

[0062] The communication between the wireless function module 28 and the handheld wireless test terminal adopts a linear frequency modulation spread spectrum system, which effectively improves the anti-interference ability of the communication link. During the ground test, after the wireless function module 28 receives the RF signal containing the control instruction, it amplifies and demodulates the control instruction and transmits the control instruction to the DSP module 22 to complete the corresponding action; and receives the working status information of the on-arrow system output by the DSP module 22, obtains the RF signal after modulation and amplification, and sends it to the handheld wireless test terminal through the antenna module 29.

[0063] The wireless function module 28 includes an antenna module 29, which is mainly used to complete the transmission and reception conversion function of the radio frequency signal. When the radio frequency signal is transmitted, the antenna module 29 sends the radio frequency signal containing the working status of the arrow to the handheld wireless test terminal. When the radio frequency signal is received, the antenna module 29 receives the radio frequency signal containing the control instruction output by the handheld wireless test terminal.

[0064] The two-way electric squibs equipped on the gas generator 41 receive the detonation signal output by the controller 2, and detonate the two-way electric squibs to detonate the gas generator 41. The gas generator 41 is mainly used to generate a large amount of high-pressure gas under the stimulation of the detonation signal, and finally realize the expansion drop ball device 42 to be ejected and released from the fairing.

[0065] The wireless charger 6 and the ground coupling device 7 are used together, and are mainly used for charging maintenance when the power supply battery 1 is low in power during the ground test phase of the system. When charging, the wireless charger 6 first converts the 220V mains power into DC through AC / DC, and then outputs it to the ground coupling device 7 after high-frequency inversion to convert the electrical energy into electromagnetic energy to achieve wireless charging; at the same time, the ground coupling device 7 receives the power supply battery combination and single cell output voltage, and monitors the charging status of the power supply battery 1 in real time.

[0066] The present invention adopts wireless test and launch control technology. During the ground test phase, the entire test and launch process can be completed only by using a handheld wireless test terminal, which reduces the test site requirements and effectively improves the test and launch efficiency. The present invention adopts wireless charging technology, which facilitates charging maintenance when the battery power is low during the ground test phase of the shooting range, without the need for additional connector plugging and unplugging operations.

[0067] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the spirit and scope of the present invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall belong to the protection scope of the technical solution of the present invention. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0068] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A highly reliable separation control system for ejection of an active expansion ball drop device, characterized in that: include: A power supply battery (1), a controller (2) and a separation switch (3); The power supply battery (1) is used to supply power to the controller (2); The separation switch (3) is used to sense the separation state of the fairing. After the fairing is separated, the separation switch (3) outputs a separation signal to the controller (2); The controller (2) senses the axial flight overload of the carrier after the carrier takes off, generates an overload signal after the overload voltage exceeds the rated threshold, performs a two-out-of-three judgment on the overload signal, and outputs a release control instruction after delay processing; the release control instruction is used to release the short-circuit protection of the electric squib equipped with the gas generator (41); The controller (2) receives a separation signal output by the separation switch (3), performs a two-out-of-three judgment on the separation signal, and outputs a detonation control instruction after delay processing; the detonation control instruction is used to detonate an electric squib equipped with a gas generator (41), so that the expansion ball drop device (42) pops out and releases from the fairing; The controller (2) receives control instructions sent by the ground test, launch and control system through a wireless link to complete corresponding actions, and transmits arrow status information back to the ground test, launch and control system through a wireless link; The controller (2) comprises: a power supply control module (21), a timing acquisition module (26), a DSP module (22), a three-judgment-two module (23), a timing control module (24) and an overload sensor (27); The power supply control module (21) receives the electric energy provided by the power supply battery (1), performs DC / DC conversion to obtain the corresponding secondary voltage, and then supplies power to the DSP module (22), the timing control module (24) and the timing acquisition module (26) respectively; The overload sensor (27) senses the axial flight overload of the carrier after the carrier takes off, and outputs an overload signal to the timing acquisition module (26) after the overload voltage exceeds the rated threshold; The timing acquisition module (26) receives the overload signal output by the overload sensor (27) and the separation signal output by the separation switch (3); the timing acquisition module (26) amplifies the overload signal and outputs it to the three DSP modules (22); the timing acquisition module (26) performs optical coupling isolation processing on the separation signal and outputs it to the three DSP modules (22); After the DSP module (22) effectively determines the received overload signal, it delays the output of the release control instruction to the three-determination two-module (23); after the DSP module (22) effectively determines the received separation signal, it delays the output of the detonation control instruction to the three-determination two-module (23); The three-judgment-two module (23) simultaneously receives the control instructions output by the three-way DSP module (22), and performs a three-judgment-two voting judgment. When any two of the control instructions are valid, the three-judgment-two module (23) outputs a corresponding control signal to the timing control module (24); the control instructions include: a release control instruction or a detonation control instruction; The timing control module (24) receives the release control instruction or the detonation control instruction output by the three-judgment two-module (23); when the timing control module (24) receives the release control instruction, the detonation signal is released to release the short-circuit protection of the electric squib equipped with the gas generator (41); when the timing control module (24) receives the detonation control instruction, the detonation signal is output to detonate the electric squib equipped with the gas generator (41), so that the expansion drop ball device (42) is ejected and released from the fairing.

2. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 1, characterized in that: The DSP module (22) is bound with a delay parameter A and a delay parameter B; The delay parameter A is used to ensure that the time when the DSP module (22) outputs the release control instruction is a certain time later than the time when the DSP module (22) receives the overload signal; The delay parameter B is used to ensure that the time when the DSP module (22) outputs the detonation control instruction is a certain time later than the time when the DSP module (22) receives the separation signal.

3. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 2, characterized in that: The controller (2) further includes: a wireless function module (28) and an antenna module (29); The wireless function module (28) receives control instructions sent by the ground test, launch and control system through the antenna module (29) and transmits the instructions to the DSP module (22); the wireless function module (28) receives the on-rocket system working status information output by the DSP module (22), modulates and amplifies it, obtains a radio frequency signal, and sends it to the ground test, launch and control system through the antenna module (29).

4. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 3, characterized in that: The on-rocket system working status information includes: the power supply voltage of the power supply control module (21), the health status of the DSP module (22), the test result of the resistance value of the electric squib bridge wire, and the execution status of the release control instruction and the detonation control instruction.

5. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 4, characterized in that: The control instructions include: wireless link establishment instructions, wireless link disconnection instructions, on-rocket system self-check instructions, delay parameter binding instructions and pyrotechnic resistance value test instructions; the wireless link establishment instructions and wireless link disconnection instructions are used to connect or disconnect the wireless link between the wireless function module (28) and the ground test and launch control system; the on-rocket system self-check instructions are used to detect the health status of the DSP module (22) and the output voltage of the power supply control module (21); the delay parameter binding instructions are used to bind delay parameters A and delay parameters B; the pyrotechnic resistance value test instructions are used to detect the resistance value of the electric bursting pipe bridge wire equipped with the gas generator (41).

6. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 5, characterized in that: After receiving the pyrotechnic resistance test instruction, the controller (2) detects the resistance of the electric squib bridge wire equipped with the gas generator (41), and determines the connection state between the controller (2) and the gas generator (41) through the obtained electric squib bridge wire resistance.

7. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 6, characterized in that: The controller (2) further includes: an explosive device testing module (25); The explosive device testing module (25) is used to provide a constant current source signal for testing the resistance value of the electric bursting tube bridge wire.

8. A highly reliable separation control system for ejection of an active expansion ball drop device according to any one of claims 1 to 7, characterized in that: The power supply battery (1) comprises: a battery assembly (11); The battery assembly (11) comprises three parallel-connected battery groups, each of which is provided with (8) battery cells connected in series.

9. A highly reliable separation control system for ejection of an active expansion ball drop device according to claim 8, characterized in that: The high-reliability separation control system also includes: a wireless charging device (6) and a ground coupling device (7); The power supply battery (1) also includes: a charging communication module (12) and an arrow coupling device (13); The wireless charging device (6) is used to provide electric energy to the ground coupling device (7); the ground coupling device (7) is used to convert the electric energy into electromagnetic energy; the arrow coupling device (13) converts the electromagnetic energy output by the ground coupling device (7) into an alternating voltage signal, and then transmits it to the charging communication module (12); the charging communication module (12) receives the alternating voltage signal from the arrow coupling device (13), performs rectification and filtering, and DC / DC conversion processing to obtain the required voltage, and then charges the battery assembly (11); The charging communication module (12) collects the output voltage of the battery assembly (11) and the output voltage of the battery cell, converts them into radio frequency signals after modulation and frequency conversion, and transmits them to the arrow coupling device (13); the arrow coupling device (13) converts the radio frequency signals output by the charging communication module (12) into electromagnetic signals, and then radiates them to the ground coupling device (7) so that the ground coupling device (7) can monitor the output voltage of the battery assembly (11) and the output voltage of the battery cell in real time.

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