A recovery control device for moored mine training recovery

Abstract

The application discloses a recovery control device for sinking mine training recovery, which comprises an ignition driving module, a depth sensor and a control module; the output port of the ignition driving module comprises a first ignition head, a second ignition head, a third ignition head and a fourth ignition head; the first ignition head and the second ignition head are connected in parallel, and the third ignition head and the fourth ignition head are connected in parallel; when the device adopts the mode of using a pyrotechnic product to open an air inlet valve to realize airbag inflation, the first ignition head and the third ignition head are connected to the same group of controls, and the second ignition head and the fourth ignition head are connected to the same group of controls; when the device controls airbag inflation by controlling the opening and closing of a solenoid valve, the first ignition head and the second ignition head are connected to the same group of controls, and the third ignition head and the fourth ignition head are connected to the same group of controls; the application can realize precise control of sinking mine floating recovery in sinking mine training, and improve the reliability of the control structure.

Description

Technical Field

[0001] This invention relates to the field of ignition control device technology, and specifically to a recovery control device for training and recovering bottom mines. Background Technology

[0002] Bottom mines belong to the family of sea mines. They lie on the seabed throughout their entire combat effectiveness and have a large negative buoyancy. When the troops conduct bottom mine training, there are requirements for recovery. The negative buoyancy of the bottom mines themselves makes recovery very difficult. Therefore, for the development and training of bottom mines, there is an urgent need for a stable, reliable and accurate bottom mine recovery system. Summary of the Invention

[0003] In view of this, the present invention provides a recovery control device for bottom mine training and recovery, which can achieve precise control of bottom mine floating and recovery during bottom mine training and improve the reliability of the control structure.

[0004] To solve the above-mentioned technical problems, the present invention is implemented as follows:

[0005] A recovery control device for training and recovering bottom mines includes: an ignition drive module, a depth sensor, and a control module;

[0006] The output port of the ignition drive module includes: a first ignition head, a second ignition head, a third ignition head, and a fourth ignition head; the first and second ignition heads are connected in parallel, and the third and fourth ignition heads are also connected in parallel; when the device uses a pyrotechnic device to open the air intake valve to inflate the airbag, the first and third ignition heads are connected to the same control group, and the second and fourth ignition heads are also connected to the same control group; when the device controls the airbag inflation by controlling the opening and closing of a solenoid valve, the first and second ignition heads are connected to the same control group, and the third and fourth ignition heads are also connected to the same control group.

[0007] The depth sensor acquires the depth of the device;

[0008] The control module controls the ignition drive module according to preset parameters and the depth of the device.

[0009] Preferably, the ignition drive module consists of a three-stage drive circuit;

[0010] The first-stage drive circuit is a Darlington transistor array, which amplifies the output signal of the control module to obtain the ignition power enable signal;

[0011] The second-stage drive circuit is a field-effect transistor. The ignition power is enabled according to the ignition power enable signal, and the ignition power is applied to the third-stage drive circuit.

[0012] The third-stage drive circuit is a PNP Darlington transistor, which amplifies the ignition power supply to meet the ignition current requirements in order to achieve ignition drive.

[0013] Preferably, when the depth of the device is shallower than the preset operating water depth, the control module provides drive protection for the ignition drive module, and the ignition drive module does not perform ignition drive in the drive protection state; when the depth of the device is deeper than the operating water depth, the drive protection is released, and the ignition drive module performs ignition drive according to the output signal of the control module.

[0014] Preferably, the control module is implemented by a microcontroller; the output of the microcontroller is output to the ignition drive module after being delayed and protected by an RC delay circuit; the delay protection duration of the RC delay circuit is longer than the maximum uncontrollable duration of the microcontroller when it is powered on and reset under the operating voltage.

[0015] Preferably, the microcontroller runs recycling control software, which includes the following functions: parameter binding, data recording and recycling, time reading and writing and timing control, four-channel ignition output, and self-testing.

[0016] Preferably, the control module, the depth sensor, and the ignition drive module are integrated on a circuit board; in addition to the circuit board, the device further includes: a small side plate, a cover plate, a large side plate, a battery pack, and a base plate;

[0017] Two large side plates are fixed to the top of the base plate with screws; the cover plate is fixed to the top of the large side plates with screws; two small side plates are fixed to the sides of the large side plates with screws, forming a hexahedral airtight box together with the cover plate, the large side plates, and the base plate; the circuit board and the battery pack are located inside the hexahedral airtight box, and the circuit board is fixed between the two large side plates with screws; the battery pack is fixed by limiting buckles on the large and small side plates and is connected to the circuit board through a cable.

[0018] Beneficial effects:

[0019] 1. This invention, through the design of two groups of four output ignition heads in the ignition drive module, and through the parallel relationship between the ignition heads, has carried out different group control designs for various types of gas path control drives. This enables the recovery control device to not only have good versatility when facing the two different recovery gasbag drive methods commonly used today, such as pyrotechnics or solenoid valves, ensuring that the control device is applicable to various types of recovery systems, but also to ensure that the recovery control has good accuracy and reliability under different recovery gasbag drive methods.

[0020] 2. Through the design of the ignition drive module, this invention can adopt two sets of control strategies, which are suitable for solenoid valve drive or pyrotechnic drive. The device has strong adaptability and versatility; and it can ensure good accuracy and reliability under different gas path control drive types.

[0021] 3. By adding an RC delay circuit to the microcontroller output terminal of the control module, this invention can prevent erroneous driving caused by the disordered level of the microcontroller output port at the moment of system power-on.

[0022] 4. This invention, through the design of a three-stage drive circuit for the ignition drive module, isolates the working power control circuit and the ignition power drive circuit, which can prevent the output drive signal from pulling down the working power and causing abnormal system operation.

[0023] 5. This invention uses a microcontroller to run the recycling control software to realize the main functions of the control module, achieving higher control accuracy and command response speed at the lowest possible cost, and reducing the overall production cost and process complexity of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the module division based on an embodiment of the present invention;

[0025] Figure 2 This is a structural front view of the present invention based on an embodiment;

[0026] Figure 3 This is a left sectional view of the structure of the present invention based on an embodiment;

[0027] Figure 4 This is a top view of the structure of the present invention based on an embodiment;

[0028] Figure 5 This is a schematic diagram of the parallel connection relationship of the ignition heads according to an embodiment of the present invention;

[0029] Figure 6 This is a partial circuit diagram of the ignition drive module according to an embodiment of the present invention;

[0030] Among them, 1-small side plate, 2-cover plate, 3-large side plate, 4-first screw, 5-second screw, 6-flat washer, 7-spring washer, 8-circuit board, 9-battery pack, 10-rubber pad, 11-base plate. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Bottom mine recovery typically employs an airbag recovery system, which consists of a high-pressure cylinder, airbag assembly, and recovery control device. The high-pressure cylinder provides the inflation gas for airbag recovery and is encased in a pressure-bearing structure. The airbag assembly, a sealed, independent section, comprises the airbag, high-pressure hose, connecting cable, and retrieval rope. After assembly, this section is screwed to the end face of the test mine. Once inflated, the end cover of the recovery cylinder automatically detaches under the pressure of the airbag, releasing the airbag and allowing the mine to float. The most crucial and challenging aspect of this recovery operation lies in the precise control of the airflow through the recovery control device; the reliability and accuracy of this control directly impact the success or failure of the bottom mine recovery operation.

[0033] To address this control aspect, the present invention provides a recovery control device for the training and recovery of bottom mines, such as... Figure 1 As shown, its core idea is that the device includes: an ignition drive module, a depth sensor, and a control module.

[0034] The output ports of the ignition drive module include: a first ignition head, a second ignition head, a third ignition head, and a fourth ignition head; the first and second ignition heads are connected in parallel, and the third and fourth ignition heads are also connected in parallel. When the device uses a pyrotechnic device to open the air intake valve to inflate the airbag, the first and third ignition heads are connected to the same control group, as are the second and fourth ignition heads. When the device controls the airbag inflation by controlling the opening and closing of a solenoid valve, the first and second ignition heads are connected to the same control group, as are the third and fourth ignition heads. A depth sensor acquires the depth of the device. The control module controls the ignition drive module according to preset parameters and the device's depth.

[0035] As can be seen, this invention, through the design of two groups of four output ignition heads in the ignition drive module, and through the parallel relationship between the ignition heads, has carried out different group control designs for various types of gas path control drives. This enables the recovery control device to not only have good versatility when facing the two different recovery gasbag drive methods commonly used today, such as pyrotechnics or solenoid valves, ensuring that the control device is applicable to various types of recovery systems, but also to ensure that the recovery control has good accuracy and reliability under different recovery gasbag drive methods.

[0036] The present invention will be further described in detail below with reference to an embodiment.

[0037] This invention provides a control device for recovering bottom mines during training, installed inside the bottom mine's instrument compartment, adjacent to the recovery airbag. Figures 2 to 4 As shown, the recovery control device is used for recovery during bottom mine training and mainly includes: small side plate 1, cover plate 2, large side plate 3, circuit board 8, battery pack 9, and bottom plate 11.

[0038] Two large side plates 3 are fixed to the base plate 11 with six first screws 4. The circuit board 8 is fixed to the two side plates 3 with four sets of second screws 5, flat washers 6, and spring washers 7. A small side plate 1 is fixed to the two large side plates 3 with four first screws 4. After installing the rubber pad 10, battery pack 9, and rubber pad 10 in sequence, another small side plate 1 is fixed to the two large side plates 3 with four first screws 4, ensuring the battery pack 9 is securely installed. The battery pack 9 is connected to the circuit board 8 via a cable, providing power to the entire recycling control device. Finally, the cover plate 2 is installed on the two side plates 3 with six first screws 4, completing the hardware structure of the recycling control device.

[0039] The circuit board 8 has seven external interfaces, including a first ignition head, a second ignition head, a third ignition head, a fourth ignition head, a battery interface, a preset interface, and a fuse interface. In terms of hardware circuit design, such as... Figure 5 As shown, this invention connects the first and second ignition heads, as well as the third and fourth ignition heads, in parallel, so that they output ignition signals in pairs. When the airbag inflation is controlled by opening the intake valve with a pyrotechnic device, the first and third ignition heads should be connected to the same control group, and the second and fourth ignition heads should be connected to the same control group to achieve a double insurance effect. When the airbag inflation is precisely controlled by controlling the opening and closing of the solenoid valve, the first and second ignition heads should be regarded as one drive group, and the third and fourth ignition heads should be regarded as another drive group connected to the circuit. The battery interface connects the positive and negative terminals of the ignition battery to the circuit board. The positive terminal connects to the fuse interface. When the fuse's hydraulic lever is activated, the positive terminal of the battery pack on the normally open terminal is connected to the circuit, thus powering the device. The positive and negative terminals of the first and third ignition heads are connected to the normally closed and common terminals of the fuse interface, respectively. Under normal conditions, this provides short-circuit protection. When the fuse is activated, the normally closed terminal changes from being shorted to being floating, enabling ignition. In addition to the A, B, Y, and Z pins used for communication, the preset interface also includes a working mode I / O port and a digital GND port. When the preset interface is floating, the working mode I / O port is pulled up by a resistor, and the software enters working mode after recognizing the voltage level. When the preset interface is connected, the working mode I / O port is shorted to the digital GND, and the software enters preset mode after recognizing a low voltage level. In this mode, operations such as parameter presetting and data retrieval can be performed.

[0040] This invention includes a short-circuit interface for pyrotechnic components on the fuse interface, providing short-circuit protection for the pyrotechnic components before the system outputs an ignition signal. It also features post-ignition short-circuit protection, as some pyrotechnic components, after ignition, can short-circuit the bridge wire, causing a short circuit in the ignition drive circuit. Therefore, this invention adds a circuit protection mechanism to prevent this from happening.

[0041] The functions of the recovery control device are mainly implemented by circuit board 8, which specifically includes a control module, an ignition drive module, and a depth sensor. The control module communicates with the host computer to preset parameters and time the output drive current of the drive circuit. The ignition drive module outputs drive current after receiving the drive control signal from the control module.

[0042] The control module controls the ignition output through the 9 I / O ports of the microcontroller (MCU). These 9 I / O ports, after being decoded by a 38 decoder and an RC delay circuit, form the input to the ignition drive module. As a critical input signal, the control module utilizes the RC delay circuit to protect the system and ensure it remains in a stable state. During power-on reset, the MCU requires a Tout period to stabilize. In this embodiment, at a 3.3V operating voltage, the maximum Tout is 69ms. During this time, the state of the MCU's I / O ports is uncontrollable, potentially leading to uncontrollable ignition control signals. In this embodiment, the RC delay circuit uses a 100kΩ resistor and a 2.2uF capacitor. It is initially low upon power-on and then high after a 220ms delay. During this period, regardless of the state of the MCU's I / O ports, the ignition control signal remains low. This invention employs an RC delay circuit design to prevent erroneous driving caused by disordered MCU output port levels at system power-on.

[0043] The ignition drive module consists of a three-stage drive circuit, such as... Figure 6 As shown, the first layer is a Darlington transistor array, the second layer is a field-effect transistor, and the third layer is a PNP Darlington transistor. The Darlington transistor array mainly controls the ignition power enable signal, acting as a first-stage driver and increasing the I / O port signal directly output by the microcontroller. The second-stage field-effect transistor enables the ignition power according to the ignition power enable signal output from the previous stage, applying the ignition power directly to the third-stage PNP Darlington transistor. This Darlington transistor has two operating states: saturation conduction and cutoff. The minimum amplification factor can be used to calculate the ignition current requirement.

[0044] This invention isolates the working power control circuit and the ignition power drive circuit through the design of the ignition drive module, which can prevent the output drive signal from pulling down the working power and causing abnormal system operation.

[0045] A depth sensor collects depth data. In some embodiments, the data collected by the depth sensor is used to determine the water depth via a depth sensor interface. When the preset depth limit is not reached, the system activates protection and does not perform a retrieval operation. The safety mechanism disengages when it reaches the activation depth. If the water depth is again less than the activation depth of the safety mechanism, the safety mechanism can reset and reactivate the retrieval control device.

[0046] The recycling control software runs on the microcontroller of the control module. In this embodiment, the microcontroller model is JSF169. The main functions include: parameter binding, data recording and recycling, time reading and writing and timing control, four-channel ignition output and self-test.

[0047] After the fuse is turned on and the recycling control device is powered on, the system will first determine the high or low level of the working mode IO port. If it is low, it will enter the communication mode, at which time the parameters of the recycling time will be loaded, and the process data will be read and organized. If it is high, it will enter the working mode.

[0048] In operating mode, the system first reads preset parameters and sets a timer alarm, storing the preset parameters, the timer alarm status, and the result in the ferroelectric memory. After completing the status recording, it reads and records the current depth. Only when the depth is greater than the preset value can subsequent logical judgments be executed, at which point the system enters a low-power state. When the timer expires, the clock chip outputs an interrupt signal. When the software intercepts the interrupt signal, it first checks whether the depth is greater than the preset value, then adjusts the output status of the corresponding I / O port according to the strobe output port number of the 38 decoder. At this time, the I / O output status is recorded in the ferroelectric memory, and then the ignition power enable port, ignition enable 1, and ignition enable 2 ports are output sequentially to drive the pyrotechnic device. In solenoid valve driven mode, it also determines whether the bottom mine has risen to the surface based on the depth and decides whether to close the solenoid valve to save gas and electricity. After completing the above operations, the system re-enters low-power mode.

[0049] This invention uses a ferroelectric memory as a data storage chip, which can save preset parameters and record the status throughout the entire working process, making it convenient to check the working status later.

[0050] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A recovery control device for training and recovering bottom mines, characterized in that, include: Ignition drive module, depth sensor and control module; The output port of the ignition drive module includes: a first ignition head, a second ignition head, a third ignition head, and a fourth ignition head; the first and second ignition heads are connected in parallel, and the third and fourth ignition heads are also connected in parallel; when the device uses a pyrotechnic device to open the air intake valve to inflate the airbag, the first and third ignition heads are connected to the same control group, and the second and fourth ignition heads are also connected to the same control group; when the device controls the airbag inflation by controlling the opening and closing of a solenoid valve, the first and second ignition heads are connected to the same control group, and the third and fourth ignition heads are also connected to the same control group. The depth sensor acquires the depth of the device; The control module controls the ignition drive module according to preset parameters and the depth of the device.

2. The recovery control device for training and recovering bottom mines as described in claim 1, characterized in that, The ignition drive module consists of a three-stage drive circuit; The first-stage drive circuit is a Darlington transistor array, which amplifies the output signal of the control module to obtain the ignition power enable signal; The second-stage drive circuit is a field-effect transistor. The ignition power is enabled according to the ignition power enable signal, and the ignition power is applied to the third-stage drive circuit. The third-stage drive circuit is a PNP Darlington transistor, which amplifies the ignition power supply to meet the ignition current requirements in order to achieve ignition drive.

3. The recovery control device for training and recovering bottom mines as described in claim 1, characterized in that, When the depth of the device is shallower than the preset operating water depth, the control module provides drive protection for the ignition drive module, and the ignition drive module does not perform ignition drive in the drive protection state; when the depth of the device is deeper than the operating water depth, the drive protection is released, and the ignition drive module performs ignition drive according to the output signal of the control module.

4. The recovery control device for training and recovering bottom mines as described in claim 1, characterized in that, The control module is implemented by a microcontroller; the output of the microcontroller is output to the ignition drive module after being protected by the delay of the RC delay circuit; the delay protection duration of the RC delay circuit is longer than the maximum uncontrollable duration of the microcontroller when it is powered on and reset under the working voltage.

5. The recovery control device for training and recovering bottom mines as described in claim 4, characterized in that, The microcontroller runs recycling control software, which includes the following functions: parameter binding, data recording and recycling, time reading and writing and timing control, four-channel ignition output and self-testing.

6. The recovery control device for training and recovering bottom mines as described in any one of claims 1-5, characterized in that, The control module, the depth sensor and the ignition drive module are integrated on the circuit board (8); in addition to the circuit board (8), the device further includes: a small side plate (1), a cover plate (2), a large side plate (3), a battery pack (9) and a base plate (11); The two large side plates (3) are fixed to the top of the base plate (11) by screws; the cover plate (2) is fixed to the top of the large side plate (3) by screws; the two small side plates (1) are fixed to the sides of the large side plate (3) by screws, together with the cover plate (2), the large side plate (3) and the base plate (11) forming a hexahedral airtight box; the circuit board (8) and the battery pack (9) are located inside the hexahedral airtight box, and the circuit board (8) is fixed between the two large side plates (3) by screws; the battery pack (9) is fixed by the limiting buckles on the large side plate (3) and the small side plate (1) and is connected to the circuit board (8) by a cable.

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