Unlock instant, AI-driven research and patent intelligence for your innovation.

Redundant circuits for cutting power to equipment

A technology of power supply voltage and circuits, applied in the direction of logic circuits, fail-safe circuits, electrical components, etc., which can solve problems such as unsatisfactory solutions

Active Publication Date: 2017-03-08
SAGEM DEFENSE SECURITE SA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, such solutions are not satisfactory when a particularly high level of security is required

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Redundant circuits for cutting power to equipment
  • Redundant circuits for cutting power to equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] For a detailed description of one embodiment of the present invention, refer to figure 1 , aeronautical data acquisition, processing and communication systems including:

[0038] an acquisition unit (not shown) for acquiring discrete electrical signals DIS1, DIS2, DIS3 indicating the state of the aircraft;

[0039] Circuit 1, including:

[0040] A radio frequency module 2, adapted to transmit aeronautical data from the system to a remote station;

[0041] Power supply voltage source +Vpp, for RF module 2,

[0042] the circuit is adapted to control the power supply to the module 2 by cutting power to the radio frequency module while the aircraft is in flight, and

[0043] Device 3 for transmitting information about circuit 1 and aeronautical data to be communicated. The signaling device may be a display unit, a printer, or any other device that communicates with an external aviation system.

[0044] One state of the aircraft may be, for example, flying, on the groun...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a circuit designed to control the power supply of a piece of electrical equipment, said circuit comprising the electrical equipment and a supply voltage source, and also having as inputs at least two discrete electrical signals, said at least two The value of the discrete electrical signal controls the cut-off of the power supply of the device, the circuit is characterized in that it also includes a module for redundantly comparing the discrete electrical signal, the redundant comparing module including a module for comparing the two parallel branches of said signal, each branch designed to provide at an output a control signal representing each of said comparisons of said discrete electrical signals; and a first module for switching off the electrical Said power supply of the device, said first module comprises two switches connected in series, each switch being controlled by one of said two control signals. The invention also relates to a system installed in an aircraft for the acquisition, processing and transmission of aeronautical data, comprising such a circuit.

Description

technical field [0001] The present invention relates to the field of security in the control of systems or devices, in particular electronic systems or devices, and in particular systems or devices on aircraft. Background technique [0002] The electrical system can be controlled after the conditions are met. [0003] A known solution is to connect the power supply of the electrical system to a circuit configured to test discrete signals indicating that the conditions are met. [0004] For example, in the case of aircraft, certain electrical equipment must be switched off in flight, for example, in the case of aviation data acquisition, processing and communication systems, radio frequency transmission modules must be switched off so as not to interfere with the operation of the aircraft. [0005] When necessary, the power supply to the radio frequency module can be cut off by means of a logical AND gate connected to the switch. [0006] However, such solutions are not sat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B64D31/00H03K19/007
CPCH03K19/0075G05F1/56
Inventor J-M·库尔泰耶帕特里克·瓦莱特F·吉约索尼亚·申德勒
Owner SAGEM DEFENSE SECURITE SA