摘要:
A head worn display system (e.g., helmet mounted (HMD) display system, and an eye wear mounted display system,) can include a combiner, a head position sensor and a computer. The computer provides symbology in response to first sensor input values associated with the head position. The symbology can be conformal with a real world scene. A monitoring system includes a redundant head position sensor for providing second sensor input values associated with head position. The computer monitors for positional accuracy of the symbology by comparing symbology calculated using the first and second input sensor values or by using an inverse function to compare sensor values.
摘要:
Conventional semiconductor devices are problematic in that an operation cannot be continued in the event of a failure of one of CPU cores performing a lock step operation and, as a result, reliability cannot be improved. The semiconductor device according to the present invention includes a computing unit including a first CPU core and a second CPU core that perform a lock step operation, wherein the first CPU core 11 and the second CPU core 12 respectively diagnose failures of internal logic circuits, and a sequence control circuit switches the CPU core that outputs data to a shared resource, in the computing unit based on the diagnose result.
摘要:
In order to provide simple, fast, and reliable verification of the functioning and processing of an automation task in the form of software in a multi-channel safety-oriented automation component (1), the software (SW1) is run in one channel (K1) of the automation component (1) in an active unit (P1) of the hardware of the channel (K1), and first diversity software (SW3) redundant relative to the software (SW1) is run in a verification unit (V1) in this channel (K1), wherein in a processing step (Z1) input data (Ez) associated with the software (SW1) and first output data (Az) computed by the software (SW1) in this processing step (Z1) are temporarily stored in a memory unit (M1), and the diversity software (SW3) in the verification unit (V1) computes second output data (Az′) based on the stored input data (Ez) independently of the processing of the software (SW1) in the active unit (P1), and the second output data (Az′) computed by the diversity software (SW3) is compared with the stored first output data (Az) of the software (SW1) in order to verify the processing.
摘要:
A data processing control unit for controlling two or more data processing operations SMI1,SMI2. The data processing control unit may include a control memory in control data may be stored which represents information about access to a main memory by the two or more data processing operations. A control data controller may be connected to the control memory. The control data controller may include a control data controller input or receiving an access request from one or more of the data processing operations. The control data controller may modify the data in the control memory upon receiving the access request. A process controller may be connected to the control memory. The process controller may control at least a part of the data processing operations SMI1.SMI2 based on a comparison of data in the control memory with a criterion. The process controller may include a process controller input for receiving the access request; and a process controller output for outputting a process control signal based on the comparison.
摘要:
A self-checking network is provided, comprising a first command processor configured to execute a performance function and a second command processor configured to execute the performance function, coupled to the first command processor. The self-checking network also comprises a first monitor processor configured to execute a monitor function that is coupled to the first command processor and a second monitor processor configured to execute the monitor function that is coupled to the second command processor. The first and second command processors compare outputs, the first and second monitor processors compare outputs, and the first monitor processor determines whether an output of the first command processor exceeds a first selected limit.
摘要:
A multi-core processor system including a main processor, an internal EPON bus, and a plurality of secondary core processors. The main processor includes a processing unit; an offload engine operatively connected to the processing unit for routing data to and from the processing unit; a plurality of main processor optical network units (ONU's) operatively connected to the offload engine; and, a dual optical line terminal (OLT) operatively connected to the offload engine. The internal EPON bus is operatively connected to the OLT. The plurality of secondary core processors are located physically separate from the main processor, each secondary core processor having a respective secondary core processor ONU being operatively connected to the main processor via the internal EPON bus. A number of the multi-core processor systems can be used to form an integrated modular avionics (IMA) system when operatively connected to remote data concentration components via an external EPON bus connected to the dual OLTs of the multi-core processor systems.
摘要:
A Microprocessor (1) in a security-sensitive computing system for processing an operand according to an instruction is for improving its security provided with a modulo-based check hardware (2) to perform operations in parallel to the microprocessor (1) and for comparing both results regarding congruence.
摘要:
The present invention is related to a microcomputer mutual monitoring system in which mutual monitoring is performed between a first microcomputer 11 and a second microcomputer 12, characterized in that if a reset of the second microcomputer is performed due to an occurrence of an abnormal event in the second microcomputer, the monitoring of the first microcomputer is performed by an alternative monitoring function 142 incorporated in the first microcomputer instead of the monitoring of the first microcomputer by a monitoring function of the second microcomputer during the reset. With this arrangement, the microcomputer mutual monitoring system, which can prevent reduced marketability while maintaining reliability as a system, can be obtained.
摘要:
An apparatus comprises first and second modules configured to operate in a lockstep mode and a reset mode. Each of the first and second modules is configured to asynchronously enter the reset mode when a parent reset signal is asserted at that module. Each of the first and second modules is configured to, in response to the asserted parent reset signal being negated at that module, indicate to the other module that that module is ready to exit reset mode and exit the reset mode when the other module has also indicated that the other module is ready to exit reset mode.
摘要:
A system including a node, wherein the node includes two separate controllers, each of which is configured to output data to a bus, or receive data from a bus, or output data to and receive data from a bus. At least one controller is configured to monitor the output of the other controller and is configured such that if the at least one controller determines that the other controller is providing improper data or signals, at least part of the output data of the other controller is nullified, overridden or superseded by an output from the at least one controller.