Time sequence control circuit, parachute system and aircraft
By introducing a power supply module, a timing module, and a feedback module into the timing control circuit, the problem of lacking gas generator activation feedback in the prior art is solved, realizing real-time monitoring and reliable control of the gas generator status, and ensuring the safety of the parachute system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 深圳市天鹰装备科技有限公司
- Filing Date
- 2026-01-07
- Publication Date
- 2026-04-21
AI Technical Summary
The existing timing control circuit lacks feedback functionality for the activation results of each gas generator, making it impossible for users to determine whether the gas generator is activated normally.
A timing control circuit was designed, including a power supply module, a timing module, and a feedback module. The power supply module supplies power to the timing module, which controls the gas generator to work according to a preset timing sequence. The feedback module provides activation status feedback for each gas generator.
It enables real-time monitoring of the gas generator's activation status, ensuring the safe and reliable operation of the parachute system and improving the user's operational reliability of the device.
Smart Images
Figure CN121900257A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of parachute control circuit technology, specifically relating to a timing control circuit, a parachute system, and an aircraft. Background Technology
[0002] Parachute deployers, as a critical electronic control device, are widely used in the aerospace field. They are used to precisely control the parachute system of an aircraft, such as the release of the parachute and the release of the slings. This places extremely high demands on the accuracy and reliability of timing control to ensure the smooth execution of flight missions and the safe operation of the aircraft.
[0003] As the core of the umbrella opening controller, the timing control circuit is used to control multiple gas generators to activate sequentially according to a predetermined time sequence. Although the existing timing control circuit has the function of controlling multiple gas generators to activate sequentially according to a predetermined time sequence, it lacks feedback function for the activation results of each gas generator, making it impossible for users to clearly know whether each gas generator has been activated normally. Summary of the Invention
[0004] The main objective of this invention is to overcome the shortcomings and deficiencies of the prior art and to provide a timing control circuit, a parachute system, and an aircraft, thereby solving the problems in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: In a first aspect, the present invention provides a timing control circuit, comprising: a power supply module, a timing module, and a feedback module, wherein the power supply module supplies power to the timing module and the feedback module, the timing module is used to control at least two gas generators to operate according to a preset timing sequence, and the feedback module is used to provide feedback on the activation status of each gas generator by the timing module.
[0006] Optionally, the power supply module includes a power port, a first output port, a second output port, and a third output port; The gas generator includes a first gas generator; The timing module includes a first timing circuit, which includes: a first chip, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first transistor, a second transistor, a first capacitor, a second capacitor, a first diode, a second diode, a first P-MOS transistor, and a first timing port.
[0007] Optionally, the gas generator further includes a second gas generator; The timing module further includes a second timing circuit, which includes: a second chip, a third chip, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a third capacitor, a fourth capacitor, a fifth capacitor, a third transistor, a fourth transistor, a third diode, a fourth diode, a second P-MOS transistor, and a second timing port.
[0008] Optionally, the gas generator further includes a third gas generator; The timing module further includes a third timing circuit, which includes: a fourth chip, a fifth chip, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a sixth capacitor, a seventh capacitor, a fifth transistor, a sixth transistor, a fifth diode, a sixth diode, a third P-MOS transistor, and a third timing port.
[0009] Optionally, the first chip, the second chip, the third chip, and the fifth chip are monostable multivibrators, and the fourth chip is a time delay.
[0010] Optionally, when the power supply module supplies power to the timing module, the first timing circuit, the second timing circuit, and the third timing circuit respond sequentially.
[0011] Optionally, the power supply module includes a first power supply circuit, a second power supply circuit, a third power supply circuit, and a bus circuit; The first power supply circuit includes: a sixth chip, a thirty-fourth resistor, a thirty-fifth resistor, a thirty-sixth resistor, an eighth capacitor, a ninth capacitor, a tenth capacitor, and a seventh diode; The second power supply circuit includes: a seventh chip, a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, and an eighth diode; The third power supply circuit includes: an eighth chip, a fortieth resistor, a forty-first resistor, a forty-second resistor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, and a ninth diode; The bus circuit includes: a ninth chip, a tenth chip, a tenth diode, an eleventh diode, a twelfth diode, a seventeenth capacitor, an eighteenth capacitor, and a nineteenth capacitor.
[0012] Optionally, the feedback module includes: a first feedback circuit, a second feedback circuit, and a third feedback circuit; wherein the first feedback circuit is used to provide feedback on the excitation state of the first gas generator, the second feedback circuit is used to provide feedback on the excitation state of the second gas generator, and the third feedback circuit is used to provide feedback on the excitation state of the third gas generator.
[0013] In a second aspect, the present invention provides a parachute system, including the timing control circuit described in the first aspect, and further including a parachute compartment, a parachute, a rear sling, and a rear sling release device, wherein the parachute is folded and placed in the parachute compartment, the rear sling is connected to the parachute, and the rear sling release device is connected to the rear sling; The parachute compartment is equipped with a first gas generator and a second gas generator electrically connected to the timing control circuit, and the rear sling release device is equipped with a third gas generator electrically connected to the timing control circuit.
[0014] Thirdly, the present invention provides an aircraft, including the parachute system described in the second aspect and an aircraft body, wherein the parachute system is installed on the aircraft body.
[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: The timing control circuit of the present invention supplies power to the gas generator through the power supply module and controls the operation of the gas generator through the timing module, thereby ensuring that the corresponding parachute system can operate the gas generator under the set conditions to open the parachute. At the same time, the present invention displays the activation status of each gas generator through the feedback module, so that users can obtain whether the gas generator is properly activated when using the corresponding device, thereby making the corresponding parachute system safer. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below.
[0017] Figure 1 This is a schematic diagram of the first timing circuit structure of the timing control circuit according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the second timing circuit structure of the timing control circuit according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the third timing circuit structure of the timing control circuit in an embodiment of the present invention; Figure 4 This is a schematic diagram of the first feedback circuit structure of the timing control circuit in an embodiment of the present invention; Figure 5 This is a schematic diagram of the second feedback circuit structure of the timing control circuit in an embodiment of the present invention; Figure 6 This is a schematic diagram of the third feedback circuit structure of the timing control circuit in an embodiment of the present invention. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 invention 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 invention.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0024] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0025] Please see Figures 1 to 6 This invention provides a timing control circuit, which includes a power supply module, a timing module, and a feedback module. The power supply module supplies power to the timing module and the feedback module. The timing module controls at least two gas generators to operate according to a preset timing sequence. The feedback module provides feedback on the activation status of each gas generator by the timing module.
[0026] like Figure 1 As shown, the power supply module includes a power port 28V_IN, a first output port VCC, a second output port TRIGGER_1, and a third output port RESET; the gas generator includes a first gas generator; the timing module includes a first timing circuit, which includes: a first chip U1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a first transistor QR1, a second transistor QR2, a first capacitor C1, a second capacitor C2, a first diode D1, a second diode D2, a first P-MOS transistor Q1, and a first timing port SQUIB_0S_PWR; Among them, the first diode D1 is a Zener diode, the first transistor QR1 is an NPN transistor, the second transistor QR2 is a PNP transistor, and the first P-MOS transistor Q1 is an enhancement-mode field-effect transistor. One end of the first resistor R1 is grounded, and the other end is connected to the first pin of the first chip U1; the second pin of the first chip U1 is connected to the second output port TRIGGER_1, and the third pin of the first chip U1 is connected to the third output port RESET; one end of the first capacitor C1 is connected to the fourteenth pin of the first chip U1, and the other end is connected to one end of the second resistor R2 and the fifteenth pin of the first chip U1, and the other end of the second resistor R2 is connected to the first output port VCC; one end of the third resistor R3 is connected to the thirteenth pin of the first chip U1, and the other end is connected to one end of the fourth resistor R4 and the base of the first transistor QR1, and the other end of the fourth resistor R4 and the emitter of the first transistor QR1 are grounded together, and the collector of the first transistor QR1 is connected to one end of the fifth resistor R5; one end of the sixth resistor R6, one end of the seventh resistor R7, and the anode of the first diode D1, The gate of the first P-MOS transistor Q1 is connected to the other end of the fifth resistor R5; one end of the eighth resistor R8, one end of the ninth resistor R9, and one end of the second capacitor C2 are connected to the cathode of the first diode D1. The other end of the ninth resistor R9 is also connected to the source of the first P-MOS transistor Q1. The other end of the eighth resistor R8 and the other end of the second capacitor C2 are connected to the base of the second transistor QR2. The other end of the seventh resistor R7 is connected to the collector of the second transistor QR2. The other end of the sixth resistor R6, the other end of the ninth resistor R9, and the emitter of the second transistor QR2 are connected to the cathode of the second diode D2. The anode of the second diode D2 is connected to the power supply port 28V_IN. The drain of the first P-MOS transistor Q1 is connected to the first timing port SQUIB_OS_PWR, which is connected to the first gas generator.
[0027] Specifically, after the power supply module supplies power to the timing module, the first timing circuit starts with a 0-second delay. In this embodiment, the first chip U1 is a monostable multivibrator. When the power supply module supplies power to the timing module, when the two signals on the second and third pins of the first chip U1 meet the input requirements, it triggers a high signal output on its thirteenth pin, thereby controlling the first transistor QR1 to turn on and be in the saturation region. The emitter and collector of the first transistor QR1 are shorted to ground, controlling the source and drain of the first P-MOS transistor Q1 to be fully connected, thereby activating and operating the first gas generator. It should be explained that in this embodiment, the seventh resistor R7, the eighth resistor R8, the second capacitor C2, and the second transistor QR2 constitute a spike discharge circuit. When the collector and emitter of the first transistor QR1 are rapidly turned off, a voltage spike is formed on the source side of the first P-MOS transistor Q1 in the circuit. The spike discharge circuit formed by the seventh resistor R7, the eighth resistor R8, the second capacitor C2, and the second transistor QR2 is an effective way to reduce the voltage spike and prevent the first P-MOS transistor Q1 from being affected and failing. It should be explained that the 0s delay start-up of the first timing circuit means that the time when the first timing circuit activates the first gas generator is the start time of the subsequent second and third timing circuits.
[0028] Furthermore, the gas generator includes a second gas generator; the timing module includes a second timing circuit, such as... Figure 2 As shown, the second timing circuit includes: second chip U2, third chip U3, tenth resistor R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, fourteenth resistor R14, fifteenth resistor R15, sixteenth resistor R16, seventeenth resistor R17, eighteenth resistor R18, nineteenth resistor R19, twentieth resistor R20, twenty-first resistor R21, third capacitor C3, fourth capacitor C4, fifth capacitor C5, third transistor QR3, fourth transistor QR4, third diode D3, fourth diode D4, second P-MOS transistor Q2, and second timing port SQUIB_0.4S_PWR; Among them, the third diode D3 is a Zener diode, the third transistor QR3 is an NPN transistor, the fourth transistor QR4 is a PNP transistor, and the second P-MOS transistor Q2 is an enhancement-mode MOSFET. One end of the tenth resistor R10 is grounded, and the other end is connected to the first pin of the second chip U2; the second pin of the second chip U2 is connected to the second output port TRIGGER_1, and the third pin of the second chip U2 is connected to the third output port RESET; one end of the third capacitor C3 is connected to the fourteenth pin of the second chip U2, and the other end is connected to one end of the eleventh resistor R11 and the fifteenth pin of the second chip U2; the other end of the eleventh resistor R11 is connected to the first output port VCC; the fourth pin of the second chip U2 is connected to one end of the twelfth resistor R12, and the other end of the twelfth resistor R12 is connected to... Connect the 9th pin of the third chip U3; one end of the 13th resistor R13 is connected to the 10th pin of the third chip U3, and the other end is grounded; the 11th pin of the third chip U3 is connected to the third output port RESET; one end of the fourth capacitor C4 is connected to the 6th pin of the third chip U3, and the other end is connected to one end of the 14th resistor R14 and the 7th pin of the third chip U3, and the other end of the 14th resistor R14 is connected to the first output port VCC; one end of the 15th resistor R15 is connected to the 5th pin of the third chip U3, and the other end is connected to one end of the 16th resistor R16 and the base of the third transistor QR3, and the 16th... The other end of resistor R16 is grounded along with the emitter of the third transistor QR3. The collector of the third transistor QR3 is connected to one end of the seventeenth resistor R17. One end of the eighteenth resistor R18, one end of the nineteenth resistor R19, the anode of the third diode D3, and the gate of the second P-MOS transistor Q2 are all connected to the other end of the seventeenth resistor R17. One end of the twentieth resistor R20, one end of the twenty-first resistor R21, and one end of the fifth capacitor C5 are all connected to the cathode of the third diode D3. The other end of the twenty-first resistor R21 is also connected to the source of the second P-MOS transistor Q2. The twentieth resistor R... The other end of resistor 20 and the other end of capacitor C5 are connected to the base of transistor QR4. The other end of resistor R19 is connected to the collector of transistor QR4. The other end of resistor R18, the other end of resistor R21, and the emitter of transistor QR4 are connected to the cathode of diode D4. Diode D4's anode is connected to power supply port 28V_IN. The drain of P-MOS transistor Q2 is connected to the second timing port SQUIB_0.4S_PWR, which is connected to the second gas generator.
[0029] Specifically, after the power supply module supplies power to the timing module, the second timing circuit starts with a 0.4s delay. In this embodiment, both the second chip U2 and the third chip U3 are monostable multivibrators. When the power supply module supplies power to the timing module, the two signals on the second and third pins of the second chip U2 meet the input requirements, triggering a low signal output on its fourth pin. This, in turn, causes the two signals on the ninth and eleventh pins of the third chip U3 to meet the input requirements, triggering a high signal output on its fifth pin. This controls the third transistor QR3 to turn on and be in the saturation region. The emitter and collector of the third transistor QR3 are shorted to ground, controlling the source and drain of the second P-MOS transistor Q2 to be fully connected, thereby activating and operating the second gas generator. It should be explained that the 0.4s delay in starting the second timing circuit in this embodiment is relative to the start time of the first delay circuit. The 0.4s delay is achieved by adding the third chip U3 relative to the first delay circuit, utilizing the natural delay generated by the circuit operation. Meanwhile, in this embodiment, the nineteenth resistor R19, the twentieth resistor R20, the fifth capacitor C5, and the fourth transistor QR4 constitute a spike discharge circuit. When the collector and emitter of the third transistor QR3 are rapidly turned off, a spike voltage is formed on the source side of the second P-MOS transistor Q2 in the circuit. The spike discharge circuit formed by the nineteenth resistor R19, the twentieth resistor R20, the fifth capacitor C5, and the fourth transistor QR4 is an effective method to reduce the spike voltage and can prevent the second P-MOS transistor Q2 from being affected and failing.
[0030] Furthermore, the gas generator includes a third gas generator; the timing module includes a third timing circuit, such as... Figure 3 As shown, the third timing circuit includes: fourth chip U4, fifth chip U5, twenty-second resistor R22, twenty-third resistor R23, twenty-fourth resistor R24, twenty-fifth resistor R25, twenty-sixth resistor R26, twenty-seventh resistor R27, twenty-eighth resistor R28, twenty-ninth resistor R29, thirtieth resistor R30, thirty-first resistor R31, thirty-second resistor R32, thirty-third resistor R33, sixth capacitor C6, seventh capacitor C7, fifth transistor QR5, sixth transistor QR6, fifth diode D5, sixth diode D6, third P-MOS transistor Q3, and third timing port SQUIB_10S_PWR; Among them, the fifth diode D5 is a Zener diode, the fifth transistor QR5 is an NPN transistor, the sixth transistor QR6 is a PNP transistor, and the third P-MOS transistor Q3 is an enhancement-mode MOSFET. The first pin of the fourth chip U4 is connected to the second output port TRIGGER_1, the second pin of the fourth chip U4 is grounded, the third pin of the fourth chip U4 is connected to one end of the twenty-second resistor R22, and the other end of the twenty-second resistor R22 is grounded; one end of the twenty-third resistor R23 is connected to the fourth pin of the fourth chip U4 and one end of the twenty-fourth resistor R24, the other end of the twenty-third resistor R23 is connected to the fifth pin of the fourth chip U4 and the first output port VCC, and the other end of the twenty-fourth resistor R24 is grounded; the sixth pin of the fourth chip U4 is connected to the tenth pin of the fifth chip U5. One end of the 25th resistor R25 is grounded, and the other end is connected to pin 9 of the fifth chip U5; pin 11 of the fifth chip U5 is connected to the third output port RESET; one end of the sixth capacitor C6 is connected to pin 6 of the fifth chip U5, and the other end is connected to pin 7 of the fifth chip U5 and one end of the 26th resistor R26, the other end of which is connected to the first output port VCC; one end of the 27th resistor R27 is connected to pin 5 of the fifth chip U5, and the other end is connected to one end of the 28th resistor R28 and the base of the fifth transistor QR5, the other end of which is connected to... One end of the resistor is grounded along with the emitter of the fifth transistor QR5. The collector of the fifth transistor QR5 is connected to one end of the twenty-ninth resistor R29. One end of the thirtieth resistor R30, one end of the thirty-first resistor R31, the anode of the fifth diode D5, and the gate of the third P-MOS transistor Q3 are all connected to the other end of the twenty-ninth resistor R29. One end of the thirty-second resistor R32, one end of the thirty-third resistor R33, and one end of the seventh capacitor C7 are all connected to the cathode of the fifth diode D5. The other end of the thirty-third resistor R33 is also connected to the source of the third P-MOS transistor Q3. The thirty-second resistor R... The other end of resistor 32 and the other end of capacitor C7 are connected to the base of transistor QR6. The other end of resistor R31 is connected to the collector of transistor QR6. The other ends of resistor R30, resistor R33, and the emitter of transistor QR6 are connected to the cathode of diode D6. Diode D6 is connected to the power supply port 28V_IN. The drain of P-MOS transistor Q3 is connected to the third timing port SQUIB_10S_PWR. The third timing port SQUIB_10S_PWR is connected to the third gas generator.
[0031] Specifically, after the power supply module supplies power to the timing module, the third timing circuit starts after a 10-second delay. In this embodiment, the fourth chip U4 is a delay circuit, and the fifth chip U5 is a monostable multivibrator. When the power supply module supplies power to the timing module, the delay time of the output of the sixth pin of the fourth chip U4 can be controlled by adjusting the resistance values of the twenty-second resistor R22, the twenty-third resistor R23, and the twenty-fourth resistor R24. In this embodiment, the twenty-second resistor R22 is configured to be 237K ohms, the twenty-third resistor R23 to be 1M ohms, and the twenty-fourth resistor R24 to be 887K ohms, thus controlling the output delay time of the sixth pin of the fourth chip U4 to be 10 seconds. Furthermore, after a 10-second delay, the fourth chip U4 outputs a signal to the tenth pin of the fifth chip U5. The fifth pin of the fifth chip U5 then outputs a high signal, controlling the fifth transistor QR5 to turn on and enter the saturation region. The emitter and collector of the fifth transistor QR5 are short-circuited to ground, controlling the source and drain of the third P-MOS transistor Q3 to be fully connected, thereby activating and operating the third gas generator. It should be explained that the 10-second delay of the third timing circuit in this embodiment is relative to the start-up time of the first delay circuit. The 10-second delay is achieved by adding the fourth chip U4, which acts as a delay unit. Simultaneously, the thirty-first resistor R31, the thirty-second resistor R32, the seventh capacitor C7, and the sixth transistor QR6 in this embodiment constitute a spike discharge circuit. When the collector and emitter of the fifth transistor QR5 are rapidly turned off, a spike voltage is formed on the source side of the third P-MOS transistor Q3 in the circuit. The spike discharge circuit composed of the thirty-first resistor R31, the thirty-second resistor R32, the seventh capacitor C7, and the sixth transistor QR6 is an effective way to reduce the spike voltage and prevent the third P-MOS transistor Q3 from being affected and failing.
[0032] It is important to emphasize that when the power supply module in this embodiment supplies power to the timing module, the first timing circuit, the second timing circuit, and the third timing circuit respond sequentially. To achieve this timing control, existing timing control circuits typically incorporate a microcontroller, programming a timing control program into it, and then control each gas generator to trigger sequentially at predetermined times, relying on software for control. Compared to existing technologies, the timing control circuit in this application achieves timing control of each gas generator entirely through hardware circuitry, resulting in higher stability and reliability.
[0033] The power supply module includes a first power supply circuit, a second power supply circuit, a third power supply circuit, and a bus circuit. The first power supply circuit includes: a sixth chip U6, a thirty-fourth resistor R34, a thirty-fifth resistor R35, a thirty-sixth resistor R36, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, and a seventh diode D7. One end of the thirty-fourth resistor R34 and the anode of the seventh diode D7 are connected to the cathode of the second diode D2. The other end of the thirty-fourth resistor R34 and the cathode of the seventh diode D7 are connected to the first pin of the sixth chip U6 and one end of the eighth capacitor C8. The other end of the eighth capacitor C8 is grounded. One end of the ninth capacitor C9 is connected to... The sixth chip U6 is connected to its fourth pin, with the other end grounded. One end of the thirty-fifth resistor R35 and one end of the thirty-sixth resistor R36 are both connected to the sixth pin of the sixth chip U6, with the other end of the thirty-fifth resistor R35 grounded. The sixth chip U6 is a linear regulator. The second power supply circuit includes: the seventh chip U7, the thirty-seventh resistor R37, the thirty-eighth resistor R38, the thirty-ninth resistor R39, the eleventh capacitor C11, the twelfth capacitor C12, the thirteenth capacitor C13, and the eighth diode D8. One end of the thirty-seventh resistor R37 and the anode of the eighth diode D8 are both connected to the cathode of the fourth diode D4, with the other end of the thirty-seventh resistor R37 grounded. The cathode of the eighth diode D8 is connected to the first pin of the seventh chip U7 and one end of the eleventh capacitor C11, with the other end of the eleventh capacitor C11 grounded; one end of the twelfth capacitor C12 is connected to the fourth pin of the seventh chip U7, with the other end grounded; one end of the thirty-eighth resistor R38 and one end of the thirty-ninth resistor R39 are connected to the sixth pin of the seventh chip U7, with the other end of the thirty-eighth resistor R38 grounded; the seventh chip U7 is a linear regulator; the third power supply circuit includes: the eighth chip U8, the fortieth resistor R40, the forty-first resistor R41, the forty-second resistor R42, the fourteenth capacitor C14, the fifteenth capacitor C15, and the... Sixteenth capacitor C16, ninth diode D9, one end of fortieth resistor R40 and the positive terminal of ninth diode D9 are connected to the negative terminal of sixth diode D6. The other end of fortieth resistor R40 and the negative terminal of ninth diode D9 are connected to the first pin of eighth chip U8 and one end of fourteenth capacitor C14. The other end of fourteenth capacitor C14 is grounded. One end of fifteenth capacitor C15 is connected to the fourth pin of eighth chip U8, and the other end is grounded. One end of forty-first resistor R41 and one end of forty-second resistor R42 are connected to the sixth pin of eighth chip U8, and the other end of forty-first resistor R41 is grounded. Among them, eighth chip U8 is a linear regulator.The bus circuit includes: chip U9 (ninth chip), chip U10 (tenth chip), diode D10 (tenth diode), diode D11 (eleventh diode), diode D12 (twelfth diode), capacitor C17 (seventeenth capacitor), capacitor C18 (eighteenth capacitor), and capacitor C19 (nineteenth capacitor). Pin 8 of chip U6 (sixth chip), one end of capacitor C10 (tenth chip), and the other end of resistor R36 (thirty-sixth resistor) are connected to the anode of diode D10 (tenth diode), and the other end of capacitor C10 (tenth capacitor) is grounded. Pin 8 of chip U7 (seventh chip), one end of capacitor C13 (thirteenth capacitor), and the other end of resistor R39 (thirty-ninth resistor) are connected to the anode of diode D11 (eleventh diode), and the other end of capacitor C13 (thirteenth capacitor) is grounded. Pin 8 of chip U8 (eighth chip), one end of capacitor C16 (sixteenth capacitor), and the other end of resistor R42 (forty-second resistor) are connected to the anode of diode D11 (eleventh diode). The positive terminal of diode D12; the negative terminals of diodes D10, D11, and D12; one end of capacitor C17; and the third pin of chip U9 are all connected to the first output port VCC. The other end of capacitor C17 is grounded. The first pin of chip U9 is grounded, and its second pin is connected to the third pin of chip U10, one end of capacitor C18, and the third output port RESET. The other end of capacitor C18 is grounded. The first pin of chip U10 is grounded, and its second pin is connected to one end of capacitor C19 and the second output port TRIGGER_1. The other end of capacitor C19 is grounded. Diodes D10, D11, and D12 are Zener diodes, and chips U9 and U10 are voltage monitors.
[0034] It should be explained that, in this embodiment, by setting up a first power supply circuit, a second power supply circuit, and a third power supply circuit, the power supply module is made more stable, avoiding the risk of burnout due to overload.
[0035] like Figures 4 to 6 As shown, the feedback module includes a first feedback circuit, a second feedback circuit, and a third feedback circuit; wherein, the first feedback circuit is used to provide feedback on the excitation state of the first gas generator, the second feedback circuit is used to provide feedback on the excitation state of the second gas generator, and the third feedback circuit is used to provide feedback on the excitation state of the third gas generator.
[0036] like Figure 4As shown, the first feedback circuit includes: eleventh chip U11, twelfth chip U12, thirteenth chip U13, forty-third resistor R43, forty-fourth resistor R44, forty-fifth resistor R45, forty-sixth resistor R46, forty-seventh resistor R47, forty-eighth resistor R48, forty-ninth resistor R49, fiftieth resistor R50, thirteenth diode D13, and fourth timing port SQUIB_0S_GND; one end of the forty-third resistor R43 is connected to one end of the forty-fourth resistor R44 and the fourth timing port SQUIB_0S_GND. UIB_0S_GND is connected to the first gas generator, and the other end of the forty-fourth resistor R44 is connected to the third pin of the eleventh chip U11. One end of the forty-fifth resistor R45 is connected to the fourth pin of the eleventh chip U11, and the other end of the forty-sixth resistor R46 is connected to the first gas generator. The second pin of the eleventh chip U11 is grounded, and the fifth pin of the eleventh chip U11 is connected to the first output port VCC. The other end of the forty-sixth resistor R46 is connected to the eleventh chip U11. The first pin of chip U11 is connected to one end of resistor R47 (forty-seventh), and the other end of resistor R47 is connected to the third pin of chip U12 (twelfth). One end of resistor R48 is connected to the fourth pin of chip U12 (twelfth), and the other end is connected to the sixth pin of chip U12 (twelfth). The first and second pins of chip U12 (twelfth) are grounded together. The seventh pin of chip U12 (twelfth) and the second and fourth pins of chip U13 (thirteenth) are connected to the first output port VCC. One end of resistor R49 (forty-ninth) is connected to the eighth pin of chip U12 (twelfth), and the other end is connected to the third pin of chip U13 (thirteenth). The first pin of chip U13 (thirteenth) is connected to the third output port RESET (third). The anode of diode D13 (thirteenth) is connected to the fifth pin of chip U13 (thirteenth), and the cathode is connected to one end of resistor R50 (fiftyth), and the other end of resistor R50 (fiftyth) is grounded. Diode D13 (thirteenth) is a light-emitting diode. Chip U11 (eleventh) is an operational amplifier, chip U12 (twelfth) is a comparator, and chip U13 (thirteenth) is a flip-flop.
[0037] Understandably, when the first timing circuit starts, the first timing port SQUIB_OS_PWR and the fourth timing port SQUIB_OS_GND are turned on. The signal input from the fourth timing port SQUIB_OS_GND is then processed by the eleventh chip U11, the twelfth chip U12, and the thirteenth chip U13, and output to the thirteenth diode D13, causing D13 to light up, indicating that the first gas generator has successfully ignited. Conversely, if D13 does not light up, it means that the first gas generator has failed to ignite.
[0038] like Figure 5As shown, the second feedback circuit includes: chip U14 (fourteenth), chip U15 (fifteenth), chip U16 (sixteenth), resistor R51 (fifty-first), resistor R52 (fifty-second), resistor R53 (fifty-third), resistor R54 (fifty-fourth), resistor R55 (fifty-fifth), resistor R56 (fifty-sixth), resistor R57 (fifty-seventh), resistor R58 (fifty-eighth), diode D14 (fourteenth), and the fifth timing port SQUIB_0.4S_GND; one end of resistor R51 is connected to one end of resistor R52 and the fifth timing port SQUIB_0.4S_GND. QUIB_0.4S_GND is connected to the second gas generator, and the other end of the fifty-second resistor R52 is connected to the third pin of the fourteenth chip U14. One end of the fifty-third resistor R53 is connected to the fourth pin of the fourteenth chip U14, and the other end of the fifty-fourth resistor R54 is connected to the ground. The second pin of the fourteenth chip U14 is grounded, and the fifth pin of the fourteenth chip U14 is connected to the first output port VCC. The other end of the fifty-fourth resistor R54 is connected to the fourteenth chip U14. The first pin of chip U14 is connected to one end of resistor R55 (55th pin), and the other end of resistor R55 is connected to the third pin of chip U15 (55th pin). One end of resistor R56 (56th pin) is connected to the fourth pin of chip U15 (55th pin), and the other end is connected to the sixth pin of chip U15 (55th pin). The first and second pins of chip U15 (55th pin) are grounded together. The seventh pin of chip U15 (55th pin) and the second and fourth pins of chip U16 (66th pin) are connected to the first output port VCC. One end of resistor R57 (57th pin) is connected to the eighth pin of chip U15 (55th pin), and the other end is connected to the third pin of chip U16 (66th pin). The first pin of chip U16 (66th pin) is connected to the third output port RESET (3rd pin). The anode of diode D14 (14th pin) is connected to the fifth pin of chip U16 (66th pin), and the cathode is connected to one end of resistor R58 (58th pin), and the other end of resistor R58 (58th pin) is grounded. Diode D14 (14th pin) is a light-emitting diode (LED). Chip U14 (14th pin) is an operational amplifier, chip U15 (15th pin) is a comparator, and chip U16 (16th pin) is a flip-flop.
[0039] Understandably, when the second timing circuit is activated, the second timing port SQUIB_0.4S_PWR and the fifth timing port SQUIB_0.4S_GND are turned on. The signal input from the fifth timing port SQUIB_0.4S_GND is then processed by the fourteenth chip U14, the fifteenth chip U15, and the sixteenth chip U16, and output to the fourteenth diode D14, causing D14 to light up, indicating successful ignition of the second gas generator. Conversely, if D14 does not light up, it means that the second gas generator has failed to ignite.
[0040] like Figure 6 As shown, the third feedback circuit includes: chip 17 U17, chip 18 U18, chip 19 U19, resistor 59 R59, resistor 60 R60, resistor 61 R61, resistor 62 R62, resistor 63 R63, resistor 64 R64, resistor 65 R65, resistor 66 R66, diode 15, and timing port SQUIB_10S_GND; one end of resistor 59 R59 is connected to one end of resistor 60 R60 and timing port SQUIB_10S_GND. UIB_10S_GND is connected to the third gas generator, and the other end of resistor R60 is connected to the third pin of chip U17. One end of resistor R61 is connected to the fourth pin of chip U17, and the other end of resistor R62 is connected to ground. The second pin of chip U17 is grounded, and the fifth pin of chip U17 is connected to the first output port VCC. The other end of resistor R62 is connected to the first output port VCC. The first pin of chip U17 is connected to one end of resistor R63 (sixty-third), and the other end of resistor R63 is connected to the third pin of chip U18 (eighteenth). One end of resistor R64 (sixty-fourth) is connected to the fourth pin of chip U18 (eighteenth), and the other end is connected to the sixth pin of chip U18 (eighteenth). The first and second pins of chip U18 (eighteenth) are grounded together. The seventh pin of chip U18 and the second and fourth pins of chip U19 (nineteenth) are connected to the first output port VCC. One end of resistor R65 (sixty-fifth) is connected to the eighth pin of chip U18 (eighteenth), and the other end is connected to the third pin of chip U19 (nineteenth). The first pin of chip U19 (nineteenth) is connected to the third output port RESET. The anode of diode D15 (fifteenth) is connected to the fifth pin of chip U19 (nineteenth), and the cathode is connected to one end of resistor R66 (sixty-sixth), and the other end of resistor R66 (sixty-sixth) is grounded. Diode D15 is a light-emitting diode. Chip U17 is an operational amplifier, chip U18 is a comparator, and chip U19 is a flip-flop.
[0041] Understandably, when the third timing circuit is activated, the third timing port SQUIB_10S_PWR and the sixth timing port SQUIB_10S_GND are turned on. The signal input from the sixth timing port SQUIB_10S_GND is then processed by the seventeenth chip U17, the eighteenth chip U18, and the nineteenth chip U19, and output to the fifteenth diode D15. This causes the fifteenth diode D15 to light up, indicating that the third gas generator has successfully ignited. Conversely, if the fifteenth diode D15 does not light up, it means that the third gas generator has failed to ignite.
[0042] This invention provides a parachute system, including a timing control circuit, a parachute compartment, a parachute, a rear sling, and a rear sling release device. The parachute is folded and placed in the parachute compartment, the rear sling is connected to the parachute, and the rear sling release device is connected to the rear sling. The parachute compartment contains a first gas generator and a second gas generator electrically connected to the timing control circuit, and the rear sling release device contains a third gas generator electrically connected to the timing control circuit. It should be explained that the first and second gas generators in the parachute compartment release gas to eject the parachute from the compartment and deploy it. The third gas generator in the rear sling release device is located in an explosive pin; by releasing gas, it disengages the explosive pin connected to the first sling point from the rear sling, thereby causing the rear sling to be stretched and deployed by applying force to the second sling point. Since the first and second gas generators release gas in the parachute compartment to provide sufficient pressure for the parachute to eject and deploy, the first and second gas generators should be activated and release gas sequentially, with a short interval between activations. Furthermore, since the release of the rear sling is performed after the parachute is launched and the aircraft is subjected to the pull of the parachute, the activation time of the third gas generator should be later than that of the first and second gas generators.
[0043] The present invention provides an aircraft, including the parachute system as described above and an aircraft body, wherein the parachute system is installed on the aircraft body.
[0044] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered as equivalent substitutions and are included within the protection scope of the present invention.
Claims
1. A timing control circuit, characterized in that, include: The system includes a power supply module, a timing module, and a feedback module. The power supply module supplies power to the timing module and the feedback module. The timing module controls at least two gas generators to operate according to a preset timing sequence. The feedback module provides feedback on the activation status of each gas generator by the timing module.
2. The timing control circuit according to claim 1, characterized in that, The power supply module includes a power port, a first output port, a second output port, and a third output port; The gas generator includes a first gas generator; The timing module includes a first timing circuit, which includes: a first chip, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a first transistor, a second transistor, a first capacitor, a second capacitor, a first diode, a second diode, a first P-MOS transistor, and a first timing port.
3. The timing control circuit according to claim 2, characterized in that, The gas generator also includes a second gas generator; The timing module further includes a second timing circuit, which includes: a second chip, a third chip, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a twenty-first resistor, a third capacitor, a fourth capacitor, a fifth capacitor, a third transistor, a fourth transistor, a third diode, a fourth diode, a second P-MOS transistor, and a second timing port.
4. The timing control circuit according to claim 3, characterized in that, The gas generator also includes a third gas generator; The timing module further includes a third timing circuit, which includes: a fourth chip, a fifth chip, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a sixth capacitor, a seventh capacitor, a fifth transistor, a sixth transistor, a fifth diode, a sixth diode, a third P-MOS transistor, and a third timing port.
5. The timing control circuit according to claim 4, characterized in that, The first chip, the second chip, the third chip, and the fifth chip are monostable multivibrators, and the fourth chip is a time delay.
6. The timing control circuit according to claim 4, characterized in that, When the power supply module supplies power to the timing module, the first timing circuit, the second timing circuit, and the third timing circuit respond in sequence.
7. The timing control circuit according to claim 4, characterized in that, The power supply module includes a first power supply circuit, a second power supply circuit, a third power supply circuit, and a bus circuit; The first power supply circuit includes: a sixth chip, a thirty-fourth resistor, a thirty-fifth resistor, a thirty-sixth resistor, an eighth capacitor, a ninth capacitor, a tenth capacitor, and a seventh diode; The second power supply circuit includes: a seventh chip, a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor, and an eighth diode; The third power supply circuit includes: an eighth chip, a fortieth resistor, a forty-first resistor, a forty-second resistor, a fourteenth capacitor, a fifteenth capacitor, a sixteenth capacitor, and a ninth diode; The bus circuit includes: a ninth chip, a tenth chip, a tenth diode, an eleventh diode, a twelfth diode, a seventeenth capacitor, an eighteenth capacitor, and a nineteenth capacitor.
8. The timing control circuit according to claim 4, characterized in that, The feedback module includes a first feedback circuit, a second feedback circuit, and a third feedback circuit; wherein the first feedback circuit is used to provide feedback on the excitation state of the first gas generator, the second feedback circuit is used to provide feedback on the excitation state of the second gas generator, and the third feedback circuit is used to provide feedback on the excitation state of the third gas generator.
9. A parachute system, characterized in that, The system includes the timing control circuit according to any one of claims 1-8, and further includes a parachute compartment, a parachute, a rear sling, and a rear sling release device, wherein the parachute is folded and placed in the parachute compartment, the rear sling is connected to the parachute, and the rear sling release device is connected to the rear sling; The parachute compartment is equipped with a first gas generator and a second gas generator electrically connected to the timing control circuit, and the rear sling release device is equipped with a third gas generator electrically connected to the timing control circuit.
10. An aircraft, characterized in that, It includes the parachute system as described in claim 9 and the aircraft body, wherein the parachute system is installed on the aircraft body.