Projectile Triggering Control via Magnetic Orientation
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Solution Overview
Problem
Projectiles with a determined direction of action, lacking piloting or target detection means, face challenges in accurately targeting poorly detectable targets and are susceptible to untimely triggering by false targets or friendly fire, leading to potential collateral damage.
Innovation Solution
A method and device for controlling the triggering of projectiles by programming target coordinates in a fixed terrestrial reference, determining the orientation of the projectile's direction of action using terrestrial magnetic field components and satellite positioning, ensuring the projectile is aligned with the target before firing, thereby minimizing collateral damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If projectiles are equipped with piloting means and target detection means, then targeting accuracy is improved, but device complexity and susceptibility to jamming increase
Solution Approach 1:
The patent extracts the target detection function from complex active detection systems and replaces it with a passive magnetic field sensing approach. The projectile uses simple magnetic sensors to detect the terrestrial magnetic field orientation, eliminating the need for complex piloting means while maintaining targeting accuracy through magnetic field-based orientation determination.
Solution Approach 2:
The patent employs inexpensive magnetic sensors instead of expensive piloting and detection systems. The projectile is designed as a disposable unit with simple triggering means that relies on magnetic field detection rather than complex guidance systems, reducing both cost and complexity while achieving the desired targeting precision.
2Reliability
If projectiles lack target detection means, then susceptibility to jamming is reduced, but control of the risk zone deteriorates
Solution Approach 1:
The patent introduces the terrestrial magnetic field as an intermediary reference system. Instead of using active target detection that can be jammed, the projectile uses passive magnetic field sensors to determine its orientation relative to the target coordinates programmed in its memory. The magnetic field serves as a reliable, jamming-resistant reference that enables precise control of the attack zone without requiring active detection means.
3Ease of manufacture
If conventional projectiles are used without determined direction of action, then ease of manufacture is improved, but collateral damage increases
Solution Approach 1:
The patent employs asymmetric distribution of fragments or shaped charge orientation that directs the attack effect preferentially in a given direction. By programming the projectile with target coordinates and using magnetic field sensors to orient the direction of action, the fragment distribution or shaped charge jet is concentrated toward the target rather than dispersing uniformly, thereby reducing collateral damage while maintaining manufacturing simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for precise control of the attack zone, reducing the risk of untimely triggering and collateral damage, even in the absence of piloting or target detection means, by ensuring the projectile's direction of action is aligned with the target before initiation.
Implementation Method 1
This is the case for projectiles comprising a shaped charge (hollow charge or nucleus-generating charge). In this case the direction of action is that along which the nucleus or the shaped charge jet is projected.
Implementation Method 2
the determination of the orientation of the direction of action with respect to the fixed terrestrial reference being made by measuring the orientation of the attack module with respect to at least two components of the terrestrial magnetic field
Data Source
Figure 1~2
Figure 3
Figure 4A~4E
AI summary
The invention relates to a method for controlling the firing of an attack module (2), such as a projectile or sub-projectile, an attack module having at least one determined direction of action (WH), a method characterized by the following steps: the coordinates of at least one target (3) are programmed before firing or during the trajectory in a fixed terrestrial frame of reference (4); at least one determination of the orientation of the direction(s) of action (WH) in the fixed terrestrial frame of reference (4) is performed during the trajectory; and the firing of the attack module (2) is only authorized if the direction of action (WH) is oriented towards the target (3). The invention also relates to the device implementing such a method.