RU2359214C1 - Method of firing artillery guided projectile - Google Patents

Abstract

FIELD: weapons and ammunition.

SUBSTANCE: invention relates to ammunition, particularly, to guided artillery projectiles with the laser semi-active homing head. The proposed method comprises recording the time of using the projectile onboard systems in the commanding officer control board ROM in the form of a firing table. Note that the time intervals of using the said projectile onboard systems depend on range of fire, meteorological data and ballistic corrections. The time of using the said systems in the commanding officer control board ROM in the form of a firing table is calculated in compliance with target and gun coordinates meteorological data and ballistic corrections entered into the commander control board. The time of using the said systems is set by transmitting calculated values into the projectile electronic hardware memory via a digital transmission line arranged between the control board and the projectile. Control over the validity of entered data is effected by retrieving it from the projectile memory into the commander control board and comparing retrieved and entered data for their compliance.

EFFECT: reduced projectile weight and sizes, unified system of projectile flight parametres input for various guided artillery projectiles.

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Description

The invention relates to the field of armament, in particular to guided artillery shells with a laser semi-active homing head, capturing the illuminated target at the end of the trajectory.

The invention is intended to organize the entry into the artillery guided projectile of the times and parameters of the onboard systems of the guided projectile.

A known method of firing a guided artillery shell [RU No. 2165589 of 12/09/99, IPC 7 F42B 15/00 - Method of firing an artillery guided projectile], in which the installation time of the onboard systems of an artillery guided projectile is as follows. The entire range of firing ranges is divided into separate sections, each section is assigned a corresponding code. A table is compiled, in which the ranges of firing ranges of each section, the codes corresponding to each section, and the operating times of the on-board projectile systems: inertial gyroscope Δt1, disclosure of the rudders Δt2, engagement of batteries for the homing head Δt3, separation of the nose block Δt4, etc., are entered. The data of this table Δt1-Δtn are recorded in the memory unit in the manufacture of electronic equipment of the projectile. Before shooting, when the coordinates of the target are determined, information about the firing range, type of fuse, direction and angle of throwing is received at the firing position. The charger sets on the tumbler register switches located on the projectile in the position, the code of which corresponds to a given firing range. The projectile is loaded into a gun, a shot is fired, and during the flight, in accordance with the established code, the time intervals wired into it are read from the ROM to use the on-board systems of the artillery guided projectile.

The disadvantage is that on the projectile it is necessary to provide a place for the switches to set a code that determines the times of the onboard systems of the projectile, which increases the overall dimensions of the projectile. In addition, the fact that only a fixed number of switches with fixed discreteness can be placed on the projectile leads to a limitation of the flight task options that are hard-coded into the projectile’s memory and makes it possible to change the projectile flight paths and, accordingly, the activation parameters of the on-board projectile systems directly before the shot.

The objective of the invention is to reduce the weight and size characteristics of an artillery guided projectile by removing toggle switches from the surface of the artillery shell, which select flight times for the on-board systems of the projectile in flight; an increase in the probability of a projectile hitting a target due to an increase in the accuracy of setting the times of the on-board systems of the projectile and the possibility of additional transmission to the projectile of a larger block of information that may be needed for the projectile to operate in flight.

This task is achieved due to the fact that in the known method of firing an artillery guided projectile record in the permanent storage device (ROM) a table of the operating times of the onboard systems of the artillery guided projectile depending on the firing range, calculation of the firing range, installation of the used firing times in the artillery guided projectile its airborne systems, loading an artillery guided projectile into a gun, firing a shot, reading during flight of the times of use of the onboard systems of the artillery guided projectile, it is new that a record of the table of the times of the use of onboard systems of the artillery guided shell is carried out in the ROM of the commander’s console taking into account the firing range, weather data and ballistic corrections, while the times of the use of onboard systems of the artillery guided projectile are calculated in the commander’s console before firing at the firing table in accordance with the coordinates of the target and guns entered into the commander’s console, weather data, and by ballistic corrections, and the installation times of the onboard systems of the artillery guided projectile are carried out by transmitting the calculated values to the memory unit of the electronic equipment of the artillery guided projectile via a digital communication channel installed between the commander’s console and the memory of the electronic equipment of the guided artillery shell, while reading the times during the flight involving on-board systems of artillery guided projectiles produced from the memory unit electro hydrochloric apparatus artillery guided projectile, the front of his loading of a weapon monitor correctly entered in the electronic equipment memory unit artillery guided projectile time of engagement of onboard systems of artillery guided missile by reading them from the memory unit in the remote commander and comparing read and write times for their coincidence.

The method is illustrated in the drawing.

The proposed method of firing a guided artillery shell is implemented as follows.

The memory of the PC stores shooting tables, which calculate the times of the onboard systems of the artillery guided projectile depending on the firing range, meteorological conditions and ballistic corrections.

Before firing into the commander’s console, they enter data on the location of the target and guns, meteorological data and ballistic corrections.

The operating times of the onboard systems of an artillery guided projectile are calculated in the commander’s console before firing at the firing table in accordance with the coordinates of the target and guns entered in the commander’s console, weather data and ballistic corrections, for example, according to the dependencies [2].

For example, the calculation of the sizing time of the gyro coordinator tP according to [2] is performed in the following sequence.

1. The calculated range to the target DD = CI (m), which is the root of the equation, is determined

DD = DT + 0.1 · (XW (DD) · WX + XН (DD) · ΔН0 + XТ (DD) · ΔТВ + ХЗ (ДД) · ΔТЗ) +

+ XV (DD) ΔVO,

where DT is the topographic range to the target (m),

DD - an independent argument of the main tabular dependence - flight range (m), corresponding to the sight in the table (normal) shooting conditions,

WX, ДН0, ΔТВ, ΔТЗ, ΔV0 - respectively, longitudinal wind speed (m / s) and deviations from standard values of atmospheric pressure (mm Hg), air temperature (° С), propellant charge temperature (° С), initial speed due to barrel wear (m / s),

XW, XH, XT, X3, XV - corrections for longitudinal wind, respectively, at a speed of 10 m / s, deviations of atmospheric pressure of 10 mm Hg, air temperature 10 ° C, propellant charge temperature 10 ° C, initial speed 1%; the correction values are indicated as a function of the DD in the corresponding column of the “shooting table” (Table 1), in the intervals between the DD values are determined by linear interpolation.

2. According to the calculated range of CI, in the corresponding row of the tables with DD = CI, the value of the sizing time NN is expressed, expressed in the conditional divisions of the time scale (division price 0.2 s), tP = NN · 0.2. Between the DD values, linear interpolation is used.

The calculated gun firing settings are transmitted to the gun commander.

The timing of the onboard systems of the artillery guided projectile is set by transferring the calculated values to the memory unit of the electronic equipment of the artillery guided projectile via a digital communication channel installed between the commander’s console and the memory of the electronic equipment of the guided artillery shell, for example, by connecting them with a cable to a serial exchange interface, for example , RS-232. The recording times of the onboard systems of the projectile are carried out by a command from the commander’s console, by which a digital communication channel is established between the commander’s console and the memory unit of the electronic equipment of the guided artillery shell, and the transmission of calculated values is digitally organized, followed by their storage in the memory of the projectile’s electronic equipment.

Before loading a guided artillery shell into the cannon, the correctness of the times when the airborne systems of the artillery guided missile are activated by reading them from the memory block into the commander’s console and comparing the read and written times for their coincidence are entered into the memory of the electronic equipment of the artillery guided shell

Next, the projectile is loaded into the gun and the shot is fired. During the flight, the times of the onboard systems of the artillery guided projectile are read from the memory unit of the electronic equipment of the artillery guided projectile.

To implement the method, the following devices can be used:

- small-sized computer of the "Baguette" type - as the commander’s console in the firing position;

- a cable, which, for example, is connected via an RS-232 interface connector to the commander’s console at the firing position and the electronic unit of the artillery guided projectile equipment.

The method of firing a guided artillery shell in comparison with the prototype allows to reduce the weight and size characteristics of a guided artillery shell by eliminating code set switches from the projectile equipment that determines the time interval for the on-board systems of the projectile to engage.

The invention allows, by recording the operating times of the onboard systems of the guided projectile in digital form, on the data transmission channel between the commander’s console at the firing position and the projectile, to increase the number and accuracy of the set parameters for organizing projectile control in flight without the need to introduce additional switches on board the projectile and increase their discreteness . Due to this, it becomes possible, depending on the firing conditions, to change the flight paths of the projectile and, accordingly, the parameters for activating the onboard systems of the projectile immediately before the shot, and not to flash them in advance at the factory, as well as to shoot with new time intervals for using the onboard systems of the projectile without changing the elevation angles guns.

In addition, the invention allows in some cases to increase the maximum firing range (up to 1 km) due to a more accurate definition of time intervals for involving on-board systems and a more timely release of the rudder of the projectile.

The technical result of the invention is also the same type of constructive solution for organizing the installation of the parameters for activating the on-board systems of the projectile for various artillery guided shells, increasing the probability of the projectile being brought into the zone of the selected miss.

Information sources

1. Patent RU No. 21655589 dated 12/09/99, IPC 7 F42B 15/00 - Method of firing artillery guided projectiles.

2. TS RG No. 187U. Firing tables for the 152-mm self-propelled howitzer 2C19 and the 152-mm howitzer 2A65 guided projectile 3OF39. Moscow: Military publishing house.

Claims (1)

A method of firing an artillery guided projectile, including recording in a permanent storage device (ROM) a table of times of use of on-board systems of an artillery guided projectile depending on the firing range, calculating the firing range, installing the used times of engaging its on-board systems in an artillery guided projectile, loading an artillery guided projectile in gun, firing, reading during the flight of the use of on-board systems of artillery control a projectile, characterized in that the table of times of the onboard systems of the artillery guided projectile is recorded in the ROM of the commander’s remote control taking into account the firing range, weather data and ballistic corrections, while the times of the onboard systems of the artillery guided projectile are calculated in the commander’s console before firing according to the firing table in in accordance with the coordinates of the target and guns entered into the commander’s console, meteorological data and ballistic corrections, and the time setting is used I onboard systems of an artillery guided projectile are carried out by transmitting the calculated values to the memory unit of the electronic equipment of the artillery guided projectile through a digital communication channel installed between the commander’s console and the memory unit of the electronic equipment of the guided artillery projectile, while the flight times of the onboard systems of the artillery guided projectile are read out produced from a memory unit of electronic equipment of an artillery guided projectile, moreover Before loading it into the cannon, the accuracy of the artillery guided projectile on-board systems entered into the memory unit of the electronic equipment is monitored by reading them from the memory unit into the commander’s console and comparing the read and written times to match them.