Real-time artillery shooting direction acquisition and output circuit

Abstract

The utility model discloses an artillery shooting direction real-time acquisition output circuit, which comprises a main control system circuit, a communication circuit and a port, the communication circuit and the port are connected with the main control system circuit, an external terminal device is connected with the communication circuit, and a weapon equipment system is connected with the port. According to the artillery shooting direction real-time acquisition and output circuit disclosed by the utility model, high-precision measurement and stable output of a certain type of artillery barrel shooting direction are realized, and real-time transmission to an upper computer and the like can be realized according to design requirements, so that other related circuits can intelligently control the artillery through real-time azimuth angle and altitude angle data of the artillery; for example, a safe shooting area is stipulated, entering of a shooting forbidding area is forbidden, or shooting data of multiple artillery are shared, so that the safety of combat personnel and equipment is guaranteed, and the cooperative combat capacity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit design, in particular to a real-time acquisition and output circuit for artillery firing directions. Background Art

[0002] During combat, the artillery collects the azimuth and elevation angle of the gun barrel through the tracking system, but the traditional acquisition circuit has problems such as low accuracy, poor anti-interference ability, large size, and high power consumption, which cannot meet the requirements of modern artillery systems for angle measurement accuracy and stability. An artillery company has multiple artillery pieces fighting synchronously, and it is difficult for the commander to observe the firing direction of each artillery piece at the same time, and it is difficult to share the firing direction data of each artillery piece. The existing technology is not intuitive and accurate enough for the display of the elevation angle and azimuth of the artillery. The commander and gunner cannot accurately know the current firing position of the artillery, and it is easy for the artillery to point to the prohibited area. Utility Model Content

[0003] The technical problem to be solved by the utility model is to solve the problem that when multiple artillery pieces are fighting synchronously, it is difficult for the commander to observe the firing directions of each artillery piece at the same time, and the firing direction data of each artillery piece is difficult to share.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A real-time acquisition and output circuit for artillery firing direction, comprising a main control system circuit, a communication circuit and a port J3 connected to the main control system circuit, an external terminal device connected to the communication circuit, and a weapon equipment system connected to the port J3;

[0006] Among them, the communication circuit includes a communication chip U6 and a connection port J2; the main control system circuit includes a main controller; the T2in port of the communication chip U6 is connected to the third pin of the main controller, and the T2out port of the communication chip U6 is connected to the second pin of the connection port J2; the R2out port of the communication chip U6 is connected to the second pin of the main controller, and the R2in port of the communication chip U6 is connected to the third pin of the connection port J2.

[0007] In one embodiment of the present utility model, the communication circuit includes capacitors C5, C6, C7 and capacitor C8;

[0008] The two ends of the capacitor C5 are respectively connected to the second pin and the sixteenth pin of the communication chip U6, and the sixteenth pin of the communication chip U6 is connected to the power supply;

[0009] The two ends of the capacitor C6 are respectively connected to the sixth pin and the fifteenth pin of the communication chip U6, and the fifteenth pin of the communication chip U6 is grounded;

[0010] The two ends of the capacitor C7 are respectively connected to the first pin and the third pin of the communication chip U6; the two ends of the capacitor C8 are respectively connected to the fourth pin and the fifth pin of the communication chip U6.

[0011] In one embodiment of the present invention, the first to eighth pins of port J3 are connected to the twelfth to nineteenth pins of the main controller respectively; the nineteenth to twenty-third pins of port J3 are connected to the sixth to ninth pins of the main controller respectively; the twenty-fourth pin of port J3 is connected to the eleventh pin of the main controller.

[0012] In an embodiment of the present invention, the 39th to 41st pins of the port J3 are all connected to the 10th pin of the main controller.

[0013] In one embodiment of the present utility model, the main control system circuit includes a power supply circuit; the power supply circuit includes a switching power supply module U1, capacitors C1, C2, a unidirectional diode D1 and a power port J1;

[0014] Capacitors C1 and C2 are connected in parallel, and their two ends are respectively connected to the first lead and the third pin of the switching power supply module U1; the anode of the unidirectional diode D1 is connected to the first pin of the power port J1, and the cathode of the unidirectional diode D1 is connected to one end of the capacitor C1; the second pin of the power port J1 is connected to the other end of the capacitor C1.

[0015] In one embodiment of the present utility model, the power supply circuit includes a voltage stabilizing diode D2, an inductor L1, and capacitors C3 and C4;

[0016] The anode of the voltage stabilizing diode D2 is connected to the fifth pin of the switching power module U1, and the fifth pin of the switching power module U1 is grounded; the cathode of the voltage stabilizing diode D2 is connected to the second pin of the switching power module U1;

[0017] One end of the inductor L1 is connected to the cathode of the voltage zener diode D2, and the other end is connected to the capacitor C3;

[0018] One end of capacitor C3 is connected to inductor L1 and the fourth pin of switching power module U1, and the other end is connected to the fifth pin of switching power module U1; capacitor C4 is connected in parallel with capacitor C3, and the connection end of capacitor C4 and inductor L1 is also connected to the twentieth pin of the main controller; the other end of capacitor C4 is connected to the tenth pin of the main controller.

[0019] In one embodiment of the present utility model, the main control system circuit includes a reset circuit; the reset circuit includes a reset button SW1, a capacitor C100 and a resistor R100; one end of the reset button SW1 is connected to the positive electrode of the capacitor C100 and connected to a power supply, and the other end of the reset button SW1 is connected to the negative electrode of the capacitor C100, the resistor R100 and the first pin of the main controller; and the non-connected ends of the resistor R100 and the capacitor C100 are grounded.

[0020] In one embodiment of the utility model, the main control system circuit includes a crystal oscillator circuit; the crystal oscillator circuit includes a crystal oscillator Y1, a capacitor C101 and a capacitor C102; the two ends of the crystal oscillator Y1 are respectively connected to the fifth and fourth pins of the main controller; and one end of the capacitor C101 is grounded, and the other end is connected to the body oscillator Y1 and the fifth pin of the main controller; one end of the capacitor C102 is grounded, and the other end is connected to the body oscillator Y1 and the fourth pin of the main controller.

[0021] Compared with the prior art, the beneficial effects of the utility model are: through the new artillery azimuth, elevation and low angle acquisition circuit, considering the practicality and safety requirements of the artillery system, the advanced signal acquisition technology is adopted to achieve high-precision measurement and stable output of the artillery azimuth, elevation and low angle. At the same time, the new circuit design should have the characteristics of not affecting the performance of the weapon, not destroying the original equipment structure, easy installation, easy disassembly and assembly, strong anti-interference ability, and preventing misoperation. It can achieve high-precision measurement and stable output of the artillery azimuth, elevation and low angle without affecting the work of the artillery, so as to ensure that the artillery system accurately reports the firing direction data under normal working conditions. It is convenient for other related circuits to intelligently control the artillery through the real-time azimuth and elevation and low angle data of the artillery, such as stipulating safe shooting areas, prohibiting entry into prohibited shooting areas, or sharing the firing direction data of multiple artillery pieces, so as to ensure the safety of combat personnel and equipment and improve the ability of coordinated combat. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of a real-time acquisition and output circuit for artillery direction according to an embodiment of the present invention.

[0023] Figure 2 Schematic diagram of a main controller according to an embodiment of the present utility model.

[0024] Figure 3 Schematic diagram of a power supply circuit according to an embodiment of the present utility model.

[0025] Figure 4 Schematic diagram of a reset circuit according to an embodiment of the present utility model.

[0026] Figure 5 Schematic diagram of a crystal oscillator circuit according to an embodiment of the present utility model.

[0027] Figure 6 Schematic diagram of a communication circuit according to an embodiment of the present utility model.

[0028] Figure 7 This is a schematic diagram of port J3 according to an embodiment of the present invention.

[0029] Figure 8 It is a timing diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to facilitate those skilled in the art to understand the technical solution of the utility model, the technical solution of the utility model is further explained in conjunction with the drawings in the specification.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] See also Figure 1 As shown, the utility model provides a real-time acquisition and output circuit for artillery firing direction, including a main control system circuit, and a communication circuit and port J3 connected to the main control system circuit, an external terminal device is connected to the communication circuit, and a weapon equipment system is connected to port J3.

[0033] See also Figures 1 to 5 As shown, in one embodiment of the present utility model, the main control system circuit includes a main controller, a power supply circuit, a reset circuit and a crystal oscillator circuit.

[0034] In one embodiment of the utility model, the main controller uses AT89C2051, which has a small size, low power consumption, a built-in 2Kb program memory, 15 available I / O ports, a standard UART (Universal Asynchronous Receiver Transmitter), a DIP (Dual In-line Package) 20-pin package, a built-in 8-bit central processing unit, 128 bytes of internal RAM, 1Kb program memory (ROM), 15 bidirectional input / output (I / O) ports, and can work using a 5V power supply. When designed, the pin VDD is connected to 5V and the VSS is grounded.

[0035] In an embodiment of the present invention, the power circuit includes a switching power module U1, capacitors C1, C2, C3, C4, a unidirectional diode D1, a power port J1, a voltage regulator diode D2 and an inductor L1.

[0036] In this embodiment, capacitors C1 and C2 are connected in parallel, and their two ends are connected to the first lead and the third pin of the switch power module U1 respectively. The anode of the unidirectional diode D1 is connected to the first pin of the power port J1, the cathode of the unidirectional diode D1 is connected to one end of the capacitor C1, and the second pin of the power port J1 is connected to the other end of the capacitor C1.

[0037] The anode of the voltage zener diode D2 is connected to the fifth pin of the switching power module U1, and the fifth pin of the switching power module U1 is grounded, and the cathode of the voltage zener diode D2 is connected to the second pin of the switching power module U1. One end of the inductor L1 is connected to the cathode of the voltage zener diode D2, and the other end is connected to the capacitor C3; one end of the capacitor C3 is connected to the inductor L1 and the fourth pin of the switching power module U1, and the other end is connected to the fifth pin of the switching power module U1. The capacitor C4 is connected in parallel with the capacitor C3, and the connection end of the capacitor C4 and the inductor L1 is also connected to the twentieth pin of the main controller; the other end of the capacitor C4 is connected to the tenth pin of the main controller.

[0038] The power port J1 is used to obtain the working power from the weapon backup power output port, and generates a 5V working power after conversion by this circuit. The switching power supply module U1 adopts LM2596. When designing, a unidirectional diode D1 is added to its input end, which can effectively prevent the circuit from burning due to the reverse connection of the positive and negative poles of the power input end. Once the positive and negative pins of the power input end are reversed, the power supply stops working. C1 and C2 are input filter capacitors, which filter low-frequency and high-frequency voltage fluctuations respectively. A voltage regulator diode D2 is added to the output end to make the output voltage embedded in 5V, and output 5V voltage after passing through the inductor L1. This voltage is introduced into the 4-pin feedback end of LM2596, and the entire switching power supply can work stably. The output end uses a 220uf capacitor C3 and a 0.1uf capacitor C4 for filtering, which can effectively reduce the output voltage ripple and ensure the output stability of the 5V power supply. In order to prevent the switching power supply from interfering with other circuits when working, we design the wiring of the power board separately and install it in isolation from the acquisition board.

[0039] In one embodiment of the present invention, the reset circuit includes a reset button SW1, a capacitor C100 and a resistor R100. One end of the reset button SW1 is connected to the positive electrode of the capacitor C100 and connected to the power supply, and the other end of the reset button SW1 is connected to the negative electrode of the capacitor C100, the resistor R100 and the first pin of the main controller. In addition, the non-connected ends of the resistor R100 and the capacitor C100 are grounded.

[0040] In view of the fact that the reset signal input terminal RST pin 1 of 89C2051 is high level effective, and the time requirement lasts for more than 24 oscillation pulse cycles. The present invention adopts two modes of power-on automatic reset and key level reset. Capacitor C100 is selected as 10uf, and the resistance value of resistor R100 is 10K. After the system is powered on, as long as the rise time of power supply VCC does not exceed 1ms, power-on automatic reset can be achieved. Key level reset is used to realize system reinitialization when power is not cut off. The reset button SW1 is connected to both ends of capacitor C100 in parallel, and connected to the ground through resistor R100. After pressing the reset button SW1, the RST pin is at a high level. After releasing, the VCC power supply charges capacitor C100 through resistor R100. The device parameter design can ensure that the RST pin high level time is greater than 24 oscillation cycles. In use, in order to facilitate the system reset operation, the reset button SW1 is designed as a double button in parallel, one on the circuit board, using a common surface-mounted button, and the other is connected in parallel to the operation panel, so that the system reset can be conveniently realized whether it is in the program debugging stage or in the working process.

[0041] In one embodiment of the utility model, the crystal oscillator circuit includes a crystal oscillator Y1, a capacitor C101 and a capacitor C102. The two ends of the crystal oscillator Y1 are respectively connected to the fifth and fourth pins of the main controller, and one end of the capacitor C101 is grounded, and the other end is connected to the body oscillator Y1 and the fifth pin of the main controller. One end of the capacitor C102 is grounded, and the other end is connected to the body oscillator Y1 and the fourth pin of the main controller.

[0042] For the crystal oscillator circuit, a crystal oscillator Y1 is connected between the input terminal XTAL1 and the output terminal XTAL2 of the high-gain inverting amplifier inside 89C2051, and capacitors C101 and C102 are added between the crystal oscillator Y1 pin and the ground to form an oscillation feedback circuit. In order to facilitate the baud rate adjustment with the back-end communication circuit and not affect the stability of the oscillation of the oscillator and the rapidity of the oscillation start-up, in this embodiment, the crystal oscillator Y1 uses a 11.0592MHz crystal oscillator, and the capacitors C101 and C102 are selected as 30pF. When designing the circuit board, the crystal oscillator Y1, capacitors C101, and C102 are placed as close as possible to the XTAL1 and XTAL2 pins of the 89C2051 chip to reduce the distributed capacitance and fully ensure the stability of the crystal oscillator.

[0043] See also Figure 1 , 2 and Figure 6 As shown, in one embodiment of the present invention, the communication circuit includes a communication chip U6, a connection port J2, capacitors C5, C6, C7 and a capacitor C8.

[0044] The T2in port of the communication chip U6 is connected to the third pin of the main controller, and the T2out port of the communication chip U6 is connected to the second pin of the connection port J2; the R2out port of the communication chip U6 is connected to the second pin of the main controller, and the R2in port of the communication chip U6 is connected to the third pin of the connection port J2.

[0045] The two ends of capacitor C5 are connected to the second pin and the sixteenth pin of communication chip U6, respectively, and the sixteenth pin of communication chip U6 is connected to the power supply. The two ends of capacitor C6 are connected to the sixth pin and the fifteenth pin of communication chip U6, respectively, and the fifteenth pin of communication chip U6 is grounded. The two ends of capacitor C7 are connected to the first pin and the third pin of communication chip U6, respectively; the two ends of capacitor C8 are connected to the fourth pin and the fifth pin of communication chip U6, respectively.

[0046] In this embodiment, in order to facilitate the further use and analysis of the collected artillery azimuth and elevation data, this embodiment uses the RS232 interface to send the collected data to the 232 interface of the external terminal device, which is convenient for related software calls. The external terminal device is, for example, a desktop or a notebook. The 232 interface chip uses MAX3232, and the connection port J2 uses the RS232 universal DB9 port.

[0047] The MAX3232 chip can work with 5V. Considering that this acquisition circuit does not require special anti-interference design, no isolated power supply is used in the design, and the ground wire of RS232 is directly connected to the ground wire of the system. The other set of input and output terminals of MAX3232 are not used and are left floating in this design.

[0048] See also Figure 1 , 2 , Figure 7 and Figure 8 As shown, in one embodiment of the present invention, the first to eighth pins of port J3 are connected to the twelfth to nineteenth pins of the main controller respectively, the nineteenth to twenty-third pins of port J3 are connected to the sixth to ninth pins of the main controller respectively, the twenty-fourth pin of port J3 is connected to the eleventh pin of the main controller, and the thirty-ninth to forty-first pins of port J3 are all connected to the tenth pin of the main controller.

[0049] Among them, since this embodiment is used to collect the azimuth and elevation angle of a certain type of anti-aircraft gun, the interface design with the weapon system adopts the same type of connection port as the equipment. The specific model of port J3 can be found in the output interface of the weapon equipment. Since the 41-pin pins of the original equipment interface are not all used, Figure 7 In the interface design circuit, only the pin connections related to data acquisition in this design are drawn, and the unused pins are left floating, such as the ninth pin of port J3.

[0050] See also Figure 8 As shown, port J3 is a 41-core interface, and each contact line is a specific core line in the interface. In this embodiment, contact lines 1 and 3 are driven by an external terminal device to input into the weapon system, and the 8-bit data port line and contact line 2 are driven by the weapon system to the external terminal device.

[0051] See also Figures 1 to 8 As shown, in one embodiment of the utility model, before communication, the external terminal device should first set the contact line 1 to a high level, the 8-bit data port and the contact line 2 to input, and the contact line 3 to a low level. When data transmission is required, the external terminal device first generates a low-level pulse to the weapon system through the contact line 1. After the weapon system receives the signal, it outputs the first byte of data to the 8-bit data port and sets the level of the contact line 2 to a high level (rising edge). At this time, the external terminal device can remove the low-level signal of the contact line 1, and then both parties communicate in parallel mode.

[0052] After the external terminal device takes away the data, it must respond to the weapon equipment system with a high level signal (rising edge) through the communication line 3 to inform the weapon equipment system that the current byte data has been taken away. When the weapon equipment system removes the high level signal of the communication line 2, the external terminal device should also restore the communication line 3 signal to a low level. At this point, the two parties complete the 1B data exchange.

[0053] Subsequent data still follows the order of the weapon equipment system first preparing data to the data port line, then driving communication line 2 to a high level, the external terminal device reads the data and drives communication line 3 to a high level, and both parties then restore communication line 2 and communication line 3 to a low level respectively, and receive subsequent data in sequence until all bytes are transmitted.

[0054] By extracting the azimuth and elevation data from the data stream, the real-time information of the gun barrel position can be obtained. During the transmission process, it should be noted that the external terminal device should read the data output by the weapon system in a timely manner and respond in time through the communication line 3. The delay should not be too long, otherwise data reading errors will occur.

[0055] The collected artillery azimuth and elevation angle data are sent through the connection port J2, and connected to the external terminal device via the RS232 interface, so that the relevant upper software or equipment can obtain the artillery working status or firing direction and other data through real-time data collection and analysis.

[0056] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0057] The above-described embodiments merely represent implementation methods of the utility model, and the protection scope of the utility model is not limited to the above-described embodiments. For those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and all of these belong to the protection scope of the utility model.

Claims

1. A real-time acquisition and output circuit for artillery direction, characterized in that: It includes a main control system circuit, a communication circuit and a port J3 connected to the main control system circuit, an external terminal device connected to the communication circuit, and a weapon equipment system connected to the port J3; Among them, the communication circuit includes a communication chip U6 and a connection port J2; the main control system circuit includes a main controller; the T2in port of the communication chip U6 is connected to the third pin of the main controller, and the T2out port of the communication chip U6 is connected to the second pin of the connection port J2; the R2out port of the communication chip U6 is connected to the second pin of the main controller, and the R2in port of the communication chip U6 is connected to the third pin of the connection port J2.

2. The artillery direction real-time acquisition and output circuit according to claim 1 is characterized in that: The communication circuit includes capacitors C5, C6, C7 and capacitor C8; The two ends of the capacitor C5 are respectively connected to the second pin and the sixteenth pin of the communication chip U6, and the sixteenth pin of the communication chip U6 is connected to the power supply; The two ends of the capacitor C6 are respectively connected to the sixth pin and the fifteenth pin of the communication chip U6, and the fifteenth pin of the communication chip U6 is grounded; The two ends of the capacitor C7 are respectively connected to the first pin and the third pin of the communication chip U6; the two ends of the capacitor C8 are respectively connected to the fourth pin and the fifth pin of the communication chip U6.

3. The artillery direction real-time acquisition and output circuit according to claim 1 is characterized in that: The first to eighth pins of port J3 are connected to the twelfth to nineteenth pins of the main controller respectively; the nineteenth to twenty-third pins of port J3 are connected to the sixth to ninth pins of the main controller respectively; the twenty-fourth pin of port J3 is connected to the eleventh pin of the main controller.

4. The artillery direction real-time acquisition and output circuit according to claim 3 is characterized in that: The 39th to 41st pins of the port J3 are all connected to the 10th pin of the main controller.

5. The artillery direction real-time acquisition and output circuit according to claim 1 is characterized in that: The main control system circuit includes a power supply circuit; the power supply circuit includes a switching power supply module U1, capacitors C1, C2, a unidirectional diode D1 and a power port J1; Capacitors C1 and C2 are connected in parallel, and their two ends are respectively connected to the first lead and the third pin of the switching power supply module U1; the anode of the unidirectional diode D1 is connected to the first pin of the power port J1, and the cathode of the unidirectional diode D1 is connected to one end of the capacitor C1; the second pin of the power port J1 is connected to the other end of the capacitor C1.

6. The artillery direction real-time acquisition and output circuit according to claim 5, characterized in that: The power supply circuit includes a voltage stabilizing diode D2, an inductor L1, and capacitors C3 and C4; The anode of the voltage stabilizing diode D2 is connected to the fifth pin of the switching power module U1, and the fifth pin of the switching power module U1 is grounded; the cathode of the voltage stabilizing diode D2 is connected to the second pin of the switching power module U1; One end of the inductor L1 is connected to the cathode of the voltage zener diode D2, and the other end is connected to the capacitor C3; One end of capacitor C3 is connected to inductor L1 and the fourth pin of switching power module U1, and the other end is connected to the fifth pin of switching power module U1; capacitor C4 is connected in parallel with capacitor C3, and the connection end of capacitor C4 and inductor L1 is also connected to the twentieth pin of the main controller; the other end of capacitor C4 is connected to the tenth pin of the main controller.

7. The artillery direction real-time acquisition and output circuit according to claim 1 is characterized in that: The main control system circuit includes a reset circuit; the reset circuit includes a reset button SW1, a capacitor C100 and a resistor R100; one end of the reset button SW1 is connected to the positive electrode of the capacitor C100 and connected to a power supply, and the other end of the reset button SW1 is connected to the negative electrode of the capacitor C100, the resistor R100 and the first pin of the main controller; and the non-connected ends of the resistor R100 and the capacitor C100 are grounded.

8. The artillery direction real-time acquisition and output circuit according to claim 1 is characterized in that: The main control system circuit includes a crystal oscillator circuit; the crystal oscillator circuit includes a crystal oscillator Y1, a capacitor C101 and a capacitor C102; the two ends of the crystal oscillator Y1 are respectively connected to the fifth and fourth pins of the main controller; and one end of the capacitor C101 is grounded, and the other end is connected to the body oscillator Y1 and the fifth pin of the main controller; one end of the capacitor C102 is grounded, and the other end is connected to the body oscillator Y1 and the fourth pin of the main controller.

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