SYSTEM FOR CORRECTION OF INACCURACIES OF INERTIAL NAVIGATION SYSTEMS

• US 20110166786A1
• Filed: 12/30/2010
• Published: 07/07/2011
• Est. Priority Date: 01/07/2010
• Status: Abandoned Application

• Current Assignee: Ceske Vysoke Uceni Technicke V Praze (Urad Vlady Cr)
• Original Assignee: Ceske Vysoke Uceni Technicke V Praze (Urad Vlady Cr)
• Inventors: PACES, Pavel Ing
• Application Number:
  US12/982,127
• Publication Number:
  US 20110166786A1
• Time in Patent Office: Days
• US Class Current: 701/221
• CPC Class Codes: G01C 21/183 Compensation of inertial measurements, e.g. for temperature effects

Abstract

The system is formed by the first differential pressure sensor where its one input is connected by means of the first pressure feed to the first monitoring point of the body and where its second input is connected by means of the second pressure feed to the second monitoring point. Output of the first differential pressure sensor is connected via amplifying element to the input of analogue-digital converter and its output is connected to the microprocessor system. This is formed by mutually interconnected blocks, specifically the block with inputs, processing unit, memory and the block with output circuits, and together with the whole measuring system it is connected to the block of power supply distribution, which is interconnected with external power supply source. The first output of the microprocessor system is connected to display device. The first monitoring point and the second monitoring point are located symmetrically in relation to the centre of gravity of the body. Microprocessor system is equipped with the second output used to control external devices.

Claims

1. System for correction of inaccuracies of inertial navigation systems containing an amplifying element connected via an analogue-digital converter to microprocessor system, which is formed by mutually interconnected blocks, specifically the block with inputs, processing unit, memory and the block with output circuits, and which, together with the whole measuring system, is connected to the block of power supply distribution by means of output, interconnected with external power supply source, wherein it is formed by the first differential pressure sensor where its one input is connected by means of the first pressure feeds to the first monitoring point of the body and where its second input is connected by means of the second pressure supply to the second monitoring point, and its output is connected via the amplifying element and analogue-digital converter to the microprocessor system, and the first output of the microprocessor system is connected to a display device, while the first monitoring point and the second monitoring point are located symmetrically in relation to the centre of gravity of the body and the microprocessor system is equipped with the second output used to control external devices.

2. System according to claim 1 wherein the first output of the microprocessor system is at the same time interconnected with correction block, to which the output of the inertial navigation system is also connected where this correction block is equipped with an interface with the inertial navigation system data with improved precision.

3. System according to claim 1 wherein it includes second differential pressure sensor with inputs connected to the opposite ends of the first pressure feed and the second pressure feed than the inputs of the first differential pressure sensor, and the amplifying element is designed as a differential amplifier where the output of the first differential pressure sensor is connected to the amplifier'"'"'s inverting input and the output of the second differential pressure sensor is connected to the amplifier'"'"'s non-inverting input.

4. System according to claim 3 wherein the inputs of the first differential pressure sensor and the second differential pressure sensor are connected to the first pressure feed and the second pressure feed via pressure switch, which is connected to the second output of the microprocessor system.

5. System according to claim 2 wherein it includes second differential pressure sensor with inputs connected to the opposite ends of the first pressure feed and the second pressure feed than the inputs of the first differential pressure sensor, and the amplifying element is designed as a differential amplifier where the output of the first differential pressure sensor is connected to the amplifier'"'"'s inverting input and the output of the second differential pressure sensor is connected to the amplifier'"'"'s non-inverting input.