摘要:
A method for operating a mobile platform includes detecting a malfunction in a first sensor communicating with a sensor controller associated with the mobile platform, and switching to a second sensor communicating with the sensor controller based upon the detecting.
摘要:
A circuit arrangement which comprises at least two acceleration sensors for measuring an acceleration of at least one part of the hazardous device, at least one logic circuit for evaluating measured values of the at least two acceleration sensors, at least one memory for storing a comparison value, and at least one safety device controlled by an output of the logic circuit. The safety device is adapted to bring the hazardous device into a safe state in response to a switching command received via the output of the logic circuit. The logic circuit transmits the switching command to the safety device when the measured acceleration of the part of the hazardous device or a value derived from the measured acceleration has a predetermined ratio to the stored comparison value. Furthermore, a method for monitoring a hazardous device is also disclosed.
摘要:
A system and method for synchronizing a plurality of main processors. At a first time and in response to a first time reference, a first rendezvous signal is sent from a first to a second of the plurality of main processors. At a second time, and in response to a second time reference, a second rendezvous signal is sent from the second of the plurality of main processors, to the first of said plurality of main processors. After the first rendezvous signal is received by the second of the plurality of main processors and the second rendezvous signal is received by the first of said plurality of main processors, substantially simultaneous scanning of control information is initiated by the first and second of the plurality of main processors. In variations, a difference between the first and second times signals a fault condition.
摘要:
A control system for executing an application program is disclosed herein. The control system includes a plurality of main processor modules. The control system further includes a plurality of input/output modules for providing input process data to associated ones of the plurality of main processor modules. A voting system is operative to compare the input process data associated with first and second of the plurality of main processor modules to the input process data associated with a third of the main processor modules. This results in generation of voted input process data utilized by the third main processor module in executing the application program. In certain implementations the system includes a high-speed bus for distributing the voted input process data to the first and second main processor modules, each of which also executes the application program based upon the voted input process data.
摘要:
Disclosed herein are an apparatus and a method for diagnosing a fault of a multi-sensor of a motor. The apparatus includes: a plurality of tachometers attached to the motor to measure rotation speeds; and a plurality of processors each connected directly to the plurality of tachometers to receive the measured rotation speeds, thereby securing a plurality of directly obtained rotation speeds, sharing the obtained rotation speeds with each other, thereby obtaining a plurality of indirectly obtained rotation speeds, and performing a fault diagnosis on the plurality of tachometers using the plurality of directly obtained rotation speeds and the plurality of indirectly obtained rotation speeds.
摘要:
In an electronic apparatus, a first microcomputer is monitored by a second microcomputer, which periodically transmits data relating to a main function to the first microcomputer to be processed. The first microcomputer periodically updates a variable value, performs a predetermined calculation operation whose final result should be a specific fixed value, adds that final result to the updated variable value to obtain a sum value, and transmits the sum value and updated variable value concurrently to the second microcomputer. The second microcomputer determines that the first microcomputer is operating abnormally if the difference between the received sum value and variable value is not equal to the specific fixed value.
摘要:
A safety module (5) with terminals for connection to a bus system control module (2), which is provided for connecting input/output modules (4a, 4b) for field devices, via a databus (3), has a data processing unit (μC2), which is set up corresponding to the bus system control unit (2) for identical processing of the data transmitted via the databus (3). The data processing unit (μC2) for ensuring correct data communication with a safety function is set up in such a way that mutual checking of the safety function takes place by means of data exchange via the databus with the bus system control unit (2).
摘要:
The invention relates to a method and a device for monitoring signal processing units for sensors which detect the individual process control quantities or process measured values of a process. In order to improve the reliability of the sensor data of a vehicle, an at least redundant processing of the sensor data is carried out in two identical signal processing units (43, 31, 46; 44, 32, 45), which each have, independently and separately from the other, at least two processing devices (43, 44) in two evaluation devices (31, 32), whereby the sensor data are transmitted between the one processing device (43, 44) and the corresponding evaluation device (31, 32) through separate signal lines (60, 61).
摘要:
A method for operating a mobile platform includes detecting a malfunction in a first sensor communicating with a sensor controller associated with the mobile platform, and, in response to detecting the malfunction in the first sensor, eliminating the first sensor from a sensor data source for controlling the mobile platform, enabling a second sensor to be in the sensor data source, continuing to receive and evaluate data from the first sensor, and, in response to not detecting an anomaly in the data from the first sensor, restoring the first sensor back into the sensor data source.
摘要:
A method of monitoring and controlling plant operations, which receive input signals from sensors monitoring parameters of plant operation to generate output signals to actuators, comprising; reducing the input signals to a selected group of input functions; reducing the output signals to a selected group of output functions; processing the input signals using FPGA to generate the output signals. The invention also relates to the platform and system embodying the method.