Simulated composite electronic fuze and its control method

Abstract

The present invention relates to the field of simulated fuze technology, and more particularly to a simulated composite electronic fuze and control method, wherein the simulated composite electronic fuze comprises a housing, a cover plate, a power board, an indicator light board, an antenna, a probe and a core board assembly, wherein the power board, the indicator light board, the probe and the core board assembly are all located in a cavity composed of the housing and the cover plate, the antenna is arranged on the lower surface of the housing, the power board is electrically connected to the indicator light board, and the antenna is electrically connected to the core board assembly. The present invention integrates a variety of fuze signals in live ammunition, and Bluetooth is added at the same time, which is convenient for the transmission of set information and the setting of the simulated composite fuze by software, so that the new training bomb can realize the simulation and information control functions of the live ammunition fuze.

Description

Technical Field

[0001] The present invention relates to the technical field of analog fuzes, and in particular to an analog composite electronic fuze and a control method thereof. Background Art

[0002] At present, the existing training ammunition for mine-laying vehicles mainly includes real-bomb fake-mine training ammunition and sub-mother-type training ammunition. Real-bomb fake-mine training ammunition has the same performance, structure and launching principle as live ammunition, except that the charge of the mine in the live ammunition is replaced with inert material, so the mine in the real-bomb fake-mine training ammunition is not dangerous. However, its launch site requirements are the same as those of live ammunition, and it is expensive. Sub-mother-type training ammunition consists of a mine-laying mother bomb and a bullet. The shape of the mother bomb body is similar to that of the live ammunition. The launch tube is fixed inside it and a conductive circuit is provided for the bullet. The bullet is composed of a small iron block representing the mine, a propellant charge, etc. The maximum range is only one twentieth of the actual launch distance, and the size of the minefield in the depth and front range is only one tenth of the actual minefield. Although the mother body of the training bomb can be reused after launch, it needs to consume bullets, and the key technical indicator parameters of mine-laying such as rocket opening and mine self-destruction time setting cannot be set during training.

[0003] Real bomb and fake mine training bombs and submunition training bombs have relatively high requirements for training venues, funds, safety and other factors, and are difficult to meet the training and teaching needs of troops or colleges.

[0004] The body structure of the new training projectile is combined with the shape of the live ammunition, and the training projectile shell is weighted to ensure that the center of gravity and shape structure of the training projectile are consistent with the live ammunition. It is designed as a two-stage structure, with a full-process control scheme for loading the mine-laying vehicle, operating the gun, withdrawing the projectile, opening the rocket chamber, setting the mine, launching the rocket, receiving and displaying the mine control information. Since there is no charge inside, the new training projectile is not dangerous. The new training projectile is designed with a simulated composite fuze, which mainly integrates a variety of opening fuzes and mine fuzes in the original live ammunition. Therefore, the new training projectile can realize the simulation and information control functions of the live ammunition fuze. Summary of the invention

[0005] The present invention provides a simulated composite electronic fuze, which enables a new training bullet to realize the simulation and information control functions of a live bullet fuze.

[0006] In order to achieve the purpose of the present invention, the technical solution adopted is: a simulated composite electronic fuze, including a shell, a cover plate, a power board, an indicator light board, an antenna, a probe and a core board assembly, the power board, the indicator light board, the probe and the core board assembly are all located in a cavity formed by the shell and the cover plate, the antenna is arranged on the lower surface of the shell, the power board is electrically connected to the indicator light board, and the antenna is electrically connected to the core board assembly.

[0007] As an optimization scheme of the present invention, the core board component includes a microprocessor, a serial port conversion circuit, a Bluetooth communication circuit, a voltage divider circuit, a set signal identification and analysis circuit and an inquiry and transmission circuit. The microprocessor is responsible for control signal acquisition, processing, transmission and fuse search, configuration and detection. The microprocessor and the Bluetooth communication circuit are connected through the serial port conversion circuit. The voltage divider circuit provides a voltage within a range for the set signal identification and analysis circuit. The set signal identification and analysis circuit identifies the set signal transmitted by the voltage divider circuit and transmits the identification result to the microprocessor. The inquiry and transmission circuit is used to complete the query of the mine self-destruction time and the query of the rocket opening time and transmit the query result to the microprocessor.

[0008] As an optimization solution of the present invention, a probe hole is provided on the side of the shell, the probe is installed in the inner hole of the third sleeve, a retaining spring is provided in the groove on the inner side of the third sleeve, and the probe pops out or rebounds from the probe hole.

[0009] As an optimization solution of the present invention, the simulated composite electronic fuze also includes a lithium battery, which is connected to the power board through a cable, and the lithium battery is located in a groove between the core board assembly and the reinforcement rib of the shell.

[0010] As an optimized solution of the present invention, the power board is installed in the housing through a bracket.

[0011] As an optimization scheme of the present invention, the analog composite electronic fuze also includes an interface processing circuit, the input end of the interface processing circuit is connected to the fuze signal line, the output end of the interface processing circuit is connected to the microprocessor, the interface processing circuit includes a photoelectric coupling circuit, a current control circuit, an instantaneous short circuit and a voltage / current detection circuit, the photoelectric coupling circuit can convert the effective signal into a TTL level signal that can be normally received by the microprocessor; the current control circuit is used to switch the load to simulate various mine fuzes; the instantaneous short circuit is used to control the signal line level to achieve the signal handshake logic function; the voltage / current detection circuit detects whether the useful signal meets the electrical standards.

[0012] In order to achieve the purpose of the present invention, the technical scheme adopted is: a simulated composite electronic fuze control method, a simulated composite electronic fuze and a rocket opening fuze and a mine fuze are simulated at the same time, and the control method includes:

[0013] The simulated composite electronic fuze is started, the rocket opening fuze receives the rocket opening setting signal / the rocket opening query signal / the rocket opening launching signal, and the microprocessor analyzes and processes to obtain the rocket opening setting time and the rocket opening query time;

[0014] The mine fuze receives the mine setting signal and the mine de-energization signal, and the microprocessor analyzes and processes them to obtain the mine setting time.

[0015] As an optimization solution of the present invention, the calculation formula for the opening and setting time is:

[0016] T 0 =T X ×K (1)

[0017] Where: In formula (1), T 0 is the opening time, K is the rocket opening time coefficient, T X It is the signal for opening time.

[0018] As an optimization solution of the present invention, the calculation formula for opening position query time is:

[0019] T Y =T 0 ÷H (2)

[0020] Where: In formula (2), H is the rocket query time coefficient, T Y Query the opening time.

[0021] As an optimization solution of the present invention, the calculation formula for the setting time of the mine is:

[0022] T 1 =T 2 -x×L (3)

[0023] Where: In formula (3), T 1 Set the time for the mine, T 2 is the total mine setting time, L is the unit pulse time coefficient, and x is the total number of mine pulses.

[0024] The present invention has positive effects: 1) The present invention integrates a variety of rocket detonation fuses and mine fuses in live ammunition, and is equipped with Bluetooth, which is convenient for the transmission of setting information and the setting of the type of ammunition and the type of mine for the simulated composite fuse through software, so that the new training bomb can realize the simulation and information control functions of the live ammunition fuse;

[0025] 2) The present invention meets the processing requirements of the warehouse opening setting signal, warehouse opening query signal, warehouse opening transmission signal, mine setting signal and mine de-energization signal; through the Bluetooth communication connection control design, the whole process information flow control of setting information, de-energization and other signals is realized;

[0026] 3) The present invention has a modular design and a compact overall structure. The received setting and transmission signals can be transmitted via Bluetooth. Therefore, the functional design and implementation do not require excessive complexity, so the cost of the entire system is low and the security is high;

[0027] 4) The present invention is used in conjunction with a new type of training bullet, has a circuit design with strong anti-interference performance, a reasonable structure, is suitable for various harsh environments, and has a wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Figure 1 It is the overall structural diagram of the present invention;

[0030] Figure 2 It is a principle block diagram of the core board assembly of the present invention;

[0031] Figure 3 Schematic diagram of the lower surface structure of the shell;

[0032] Figure 4 It is a circuit schematic diagram of a signal recognition and analysis circuit.

[0033] Wherein: 1. shell, 2. cover plate, 3. power board, 4. indicator light board, 5. antenna, 6. probe, 7. core board assembly, 71. microprocessor, 72. serial port conversion circuit, 73. Bluetooth communication circuit, 74. voltage divider circuit, 75. set signal recognition and analysis circuit, 76. query and transmission circuit, 77. interface processing circuit, 8. probe hole, 9. third shaft sleeve, 10. lithium battery, 11. bracket, 12. second shaft sleeve, 13. fourth shaft sleeve, 14. fifth shaft sleeve, 15. first shaft sleeve. DETAILED DESCRIPTION

[0034] like Figure 1 As shown, the present invention discloses a simulated composite electronic fuze, including a housing 1, a cover plate 2, a power board 3, an indicator light board 4, an antenna 5, a probe 6 and a core board assembly 7, wherein the power board 3, the indicator light board 4, the probe 6 and the core board assembly 7 are all located in a cavity formed by the housing 1 and the cover plate 2, the antenna 5 is arranged on the lower surface of the housing 1, the power board 3 is electrically connected to the indicator light board 4, and the antenna 5 is electrically connected to the core board assembly 7. The simulated composite electronic fuze is a cylindrical structure. The probe 6 is a ground detection terminal.

[0035] like Figure 3 As shown, according to the requirement that the fuze needs to communicate with the outside and transmit data to the outside, switches and indicator lights must also be reserved. The antenna 5, switch and indicator light structure are placed on the lower surface of the shell 1. Because the product has a cylindrical structure, in order to ensure aesthetics, the indicator light, switch and the boss at the interface are designed as a fan-shaped structure, which is evenly distributed in a circle with the two antennas.

[0036] The shell 1 and the cover plate 2 are made of aluminum plate, which is light in weight, easy to process, and has an oxidized surface.

[0037] In order to ensure that the two holes on the core board assembly 7 can be connected to the conductive panel, the second sleeve 12 and the fourth sleeve 13 below and above the core board assembly 7 are made of aluminum rods with conductive surface treatment to ensure good conductivity. On the contrary, in order to ensure that the second sleeve 12 and the fourth sleeve 13 are insulated from the housing 1 and the cover plate 2 respectively, the fifth sleeve 14 above the second sleeve 12 and the first sleeve 15 below the fourth sleeve 13 are made of nylon material with high strength.

[0038] Similarly, to ensure the insulation between the probe 6 and the housing 1 , the third sleeve 9 is made of nylon material with high strength.

[0039] like Figure 2 As shown, the core board component 7 includes a microprocessor 71, a serial port conversion circuit 72, a Bluetooth communication circuit 73, a voltage divider circuit 74, a setting signal identification and analysis circuit 75 and an inquiry and transmission circuit 76. The microprocessor 71 is responsible for the collection, processing, transmission of control signals and the search, configuration and detection of fuses. The microprocessor 71 and the Bluetooth communication circuit 73 are connected through the serial port conversion circuit 72. The voltage divider circuit 74 provides a voltage within a range for the setting signal identification and analysis circuit 75. The setting signal identification and analysis circuit 75 identifies the setting signal transmitted by the voltage divider circuit 74 and transmits the identification result to the microprocessor 71. The inquiry and transmission circuit 76 is used to complete the inquiry of the mine self-destruction time and the rocket opening time and transmit the inquiry result to the microprocessor 71.

[0040] The microprocessor 71 uses an automotive-grade single-chip microcomputer chip, which is responsible for detecting signals and feedback control. All detection and control logic are completed by this chip, which is the core of the simulated composite electronic fuze. In addition, it is connected to the Bluetooth transceiver chip through UART serial communication to realize the main functions of fuze search, configuration and detection.

[0041] The Bluetooth communication circuit 73 uses the low-power Bluetooth 4.0 communication protocol with a frequency of 2.4GHz and is connected to the Bluetooth chip of the control terminal. A control terminal is designed for 40-channel analog composite electronic fuses. It does not use point-to-point or point-to-point 3-point Bluetooth connection communication methods, but uses broadcast communication methods. Bluetooth reception is mainly through timed scanning to receive broadcast information, and Bluetooth transmission is mainly through timed broadcasting to send information.

[0042] The power board 3 is mainly powered by lithium batteries, including battery charge and discharge management circuit, battery low voltage protection circuit, power detection circuit and switch circuit, etc., to ensure the safe and reliable operation of the fuze.

[0043] like Figure 4 As shown, the setting signal identification and analysis circuit 75 is composed of a resistor, an integrated operational amplifier, and a capacitor. Because the opening and transmitting electrical signal contains negative electricity, the circuit must distinguish between positive electricity and negative electricity, and two circuits are designed.

[0044] The core board assembly 7 also includes auxiliary circuits, which mainly include a timing circuit, a reset circuit, an indicator light control circuit, and the like.

[0045] like Figure 1 As shown, a probe hole 8 is provided on the side of the housing 1, and the probe 6 is installed in the inner hole of the third sleeve 9. A retaining spring is provided in the groove inside the third sleeve 9, and the probe 6 pops out or rebounds from the probe hole 8. It is retracted during loading, and the probe 6 pops out during use, which is convenient for loading and use.

[0046] The simulated composite electronic fuze also includes a lithium battery 10 , which is connected to the power board 3 via a cable. The lithium battery 10 is located in a groove between the core board assembly 7 and the reinforcement rib of the shell 1 .

[0047] The power board 3 is installed in the housing 1 through the bracket 11. The bracket 11 is made of aluminum plate 6061, which ensures a certain strength, is easy to process, and has a natural oxidation surface treatment.

[0048] The analog composite electronic fuze also includes an interface processing circuit 77, the input end of the interface processing circuit 77 is connected to the fuze signal line, and the output end of the interface processing circuit 77 is connected to the microprocessor 71. The interface processing circuit 77 includes a photoelectric coupling circuit, a current control circuit, an instantaneous short circuit and a voltage / current detection circuit. The photoelectric coupling circuit can convert the effective signal into a TTL level signal that can be normally received by the microprocessor 71; the current control circuit is used to switch the load to simulate various mine fuzes; the instantaneous short circuit is used to control the signal line level to achieve the signal handshake logic function; the voltage / current detection circuit detects whether the useful signal meets the electrical standards.

[0049] In addition, the power line of the setting ignition instrument contacts the signal line in the simulated composite electronic fuze, or the power line in the simulated composite fuze contacts the signal line, resulting in a short circuit and burning the circuit, causing the simulated composite electronic fuze to fail to work properly. After designing the protection circuit, the setting ignition instrument and the simulated composite electronic fuze circuit are protected and will not be burned due to high voltage and high current caused by wrong power wiring or short circuit.

[0050] The control method of the simulated composite electronic fuze is to simulate the rocket opening fuze and the mine fuze at the same time. The control method includes:

[0051] The simulated composite electronic fuze is started, the rocket opening fuze receives the rocket opening setting signal / rocket opening query signal / rocket opening firing signal, and the microprocessor 71 analyzes and processes to obtain the rocket opening setting time and the rocket opening query time;

[0052] The mine fuze receives the mine setting signal and the mine de-energization signal, and the microprocessor 71 analyzes and processes to obtain the mine setting time.

[0053] The warehouse opening and setting signal is composed of a start signal, a warehouse opening and setting leading pulse, a waiting signal, an opening time leading signal, an opening time, a programming signal and a termination signal; the warehouse opening inquiry signal is composed of a start signal, an inquiry guide signal, an opening inquiry time and a termination signal; the warehouse opening transmission signal is composed of a start signal, an opening transmission signal duration and a termination signal; the mine setting signal is composed of a start signal, a mine setting waiting time, a mine setting leading pulse, a leading end signal, a mine quantity signal, a mine setting time signal and a termination signal; the mine de-powering signal is composed of a start signal, a de-powering leading pulse signal, a de-powering signal and a termination signal.

[0054] The calculation formula for opening and setting time:

[0055] T 0 =T X ×K (1)

[0056] Where: In formula (1), T 0 is the opening time, K is the rocket opening time coefficient, T X It is the signal for opening time.

[0057] Opening and setting time T 0 Range: 4.0~200.0 seconds;

[0058] The rocket opening time coefficient K is solved to be: 512;

[0059] The opening time signal Tx range is: 7.8125~390.625 milliseconds;

[0060] The calculation error of the opening and setting time is: ±0.1 seconds;

[0061] Opening query time calculation formula:

[0062] T Y =T 0 ÷H (2)

[0063] Where: In formula (2), H is the rocket query time coefficient, T Y It is the time for opening inquiry. Opening inquiry is to feedback the time signal when the fuze was last set.

[0064] Rocket query time coefficient H is: 512;

[0065] Calculate T Y In practical applications, the opening time signal T Y The range is: 7.8 to 390.6 milliseconds.

[0066] The formula for calculating the mine setting time is:

[0067] T1 =T 2 -x×L (3)

[0068] Where: In formula (3), T 1 Set the time for the mine, T 2 is the total mine setting time, L is the unit pulse time coefficient, and x is the total number of mine pulses.

[0069] The mine setting time is reflected in the form of pulses. According to the mine setting detection principle, the total number of mine pulses x is proportional to the mine setting time.

[0070] Mine setting time T 1 The range is: 4 to 16376 minutes (16376 minutes is converted to 272 hours and 56 minutes);

[0071] Total mine setting time T 2 : 273 hours;

[0072] Unit pulse time coefficient L: 4, unit is min / p;

[0073] It is calculated that the total number of mine pulses x ranges from 1 to 4094;

[0074] The error range of the total number of mine pulses x is: ±1;

[0075] The mine setting time error is: ±4 minutes.

[0076] During training, the simulated composite electronic fuze is started, and the display terminal module is connected to the computer through the USB interface. The launch effect display software on the computer is opened, and the simulated composite electronic fuze is searched. At this time, the display terminal module and 40 simulated composite electronic fuzes form a Bluetooth point-to-multiple communication network to carry out data communication transmission and control. After the communication network connection is established, the main control computer on the mine-laying vehicle is operated to set one or more training bombs. When the simulated composite electronic fuze receives the rocket's opening time setting pulse signal, it processes and analyzes the signal, stores the analyzed time information in the memory, and transmits the time information to the Bluetooth chip through the serial port.

[0077] When setting and detecting the self-destruction time of a mine, the self-destruction time of the mine in the current training bomb is set. When the simulated composite electronic fuze receives the pulse signal of the self-destruction time setting of the mine, it processes and analyzes the signal, and transmits the time information to the Bluetooth chip through the serial port chip and transmits it to the display terminal module through the communication network. The display terminal module transmits the time information to the launch effect display software through the USB interface. In this way, the launch effect display software can display the self-destruction time of the mine.

[0078] After the rocket opening time and mine self-destruction time are set, the actual setting firing instrument first sends a set of ignition pulse signals to the simulated composite electronic fuze. After the simulated composite electronic fuze processes, it sends the launch information to the Bluetooth module. The Bluetooth module transmits it to the display terminal module through the communication network. The display terminal module transmits the signal to the launch effect display software through the USB interface. The launch effect display software issues a training bomb launch prompt and a simulated rocket launch sound. At the same time, the rocket in the three-dimensional software delays the countdown according to the opening time obtained by the composite fuze. After the countdown ends, the flying rocket is ignited again in the air, and the mines are thrown out of the mine bombs, installed on the predetermined trajectory and landed, completing the minefield laying task.

[0079] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A simulated composite electronic fuze, characterized in that: The invention comprises a housing (1), a cover plate (2), a power board (3), an indicator light board (4), an antenna (5), a probe (6) and a core board assembly (7); the power board (3), the indicator light board (4), the probe (6) and the core board assembly (7) are all located in a cavity formed by the housing (1) and the cover plate (2); the antenna (5) is arranged on the lower surface of the housing (1); the power board (3) is electrically connected to the indicator light board (4); the antenna (5) is electrically connected to the core board assembly (7); the core board assembly (7) comprises a microprocessor (71), a serial port conversion circuit (72), a Bluetooth communication circuit (73), a voltage divider circuit (74), a set signal recognition and analysis circuit (75) and a query circuit (76); The microprocessor (71) is responsible for collecting, processing and transmitting control signals and searching, configuring and detecting fuses. The microprocessor (71) and the Bluetooth communication circuit (73) are connected via a serial port conversion circuit (72). The voltage divider circuit (74) provides a voltage within a specified range for the setting signal identification and analysis circuit (75). The setting signal identification and analysis circuit (75) identifies the setting signal transmitted by the voltage divider circuit (74) and transmits the identification result to the microprocessor (71). The query and transmission circuit (76) is used to query the mine self-destruction time and the rocket opening time and transmit the query result to the microprocessor (71).

2. The simulated composite electronic fuze according to claim 1, characterized in that: A probe hole (8) is provided on the side of the housing (1), the probe (6) is installed in the inner hole of the third shaft sleeve (9), a retaining spring is provided in the groove inside the third shaft sleeve (9), and the probe (6) pops out or rebounds from the probe hole (8).

3. The simulated composite electronic fuze according to claim 2, characterized in that: The simulated composite electronic fuze also includes a lithium battery (10), which is connected to the power board (3) via a cable, and the lithium battery (10) is located in a groove between the core board component (7) and the reinforcing rib of the shell (1).

4. The simulated composite electronic fuze according to claim 3, characterized in that: The power board (3) is installed in the housing (1) via a bracket (11).

5. The simulated composite electronic fuze according to claim 4, characterized in that: The analog composite electronic fuze also includes an interface processing circuit (77), the input end of the interface processing circuit (77) is connected to the fuze signal line, the output end of the interface processing circuit (77) is connected to the microprocessor (71), the interface processing circuit (77) includes a photoelectric coupling circuit, a current control circuit, an instantaneous short circuit circuit and a voltage / current detection circuit, the photoelectric coupling circuit can convert the effective signal into a TTL level signal that can be normally received by the microprocessor (71); the current control circuit is used to switch the load to simulate various mine fuzes; the instantaneous short circuit circuit is used to control the signal line level to achieve the signal handshake logic function; the voltage / current detection circuit detects whether the useful signal meets the electrical standard.

6. A method for controlling a simulated composite electronic fuze, using the simulated composite electronic fuze according to claim 5, characterized in that: The simulated composite electronic fuze simulates both the rocket opening fuze and the mine fuze, and the control method includes: The simulated composite electronic fuze is started, the rocket opening fuze receives the rocket opening setting signal / rocket opening query signal / rocket opening launch signal, and the microprocessor (71) analyzes and processes to obtain the rocket opening setting time and the rocket opening query time; the mine fuze receives the mine setting signal and the mine de-energization signal, and the microprocessor (71) analyzes and processes to obtain the mine setting time.

7. The control method of the simulated composite electronic fuze according to claim 6, characterized in that: The calculation formula for opening and setting time: T0=T X ×K (1) Where: In formula (1), T0 is the opening time, K is the rocket opening time coefficient, T X It is the signal for opening time.

8. The control method of the simulated composite electronic fuze according to claim 7, characterized in that: Opening query time calculation formula: T Y =T0÷H (2) Where: In formula (2), H is the rocket query time coefficient, T Y Query the opening time.

9. The control method of the simulated composite electronic fuze according to claim 7, characterized in that: The formula for calculating the mine setting time is: T1=T2-x×L (3) Where: In formula (3), T1 is the mine setting time, T2 is the total mine setting time, L is the unit pulse time coefficient, and x is the total number of mine pulses.

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