Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Hiroo Kanamaru

Yoshitomo Asano

Kenji Ueda

Takuya Ishioka

Akira Toyooka

Kanehide Arai

Hideto Kinjo

Hidetoshi Harada

Masato Ushijima

Yukio Yaguchi

Tomoya Yoshikawa

Keiichi Yato

A physical data acquirer included in an operator device acquires at least one of health data indicating a health condition of an operator or posture data indicating a posture of the operator. A distance determiner included in an information processing apparatus determines whether a distance between the operator and a machine is below a predetermined threshold. A corrector corrects an avoidability definition value defined as a value indicating a possibility of the operator avoiding a hazard caused by the machine in accordance with at least one of the health condition of the operator indicated by the health data acquired from the operator device or the posture of the operator indicated by the posture data acquired from the operator device. A risk value calculator calculates a risk value by substituting the corrected avoidability definition value and a riskiness definition value into a calculation function for the risk value.

Risk value calculation system, risk factor parameter correction system, information processing apparatus, risk value calculation method, risk factor parameter correction method, and program

A risk measurement system according to an embodiment includes a measurement unit that obtains a distance between a mechanical device and an operator; a control device that controls the mechanical device, a display device; a risk table database that has a risk table indicating a risk value that depends on a size of damage due to a risk, a frequency of access to the mechanical device according to an operation mode, and a risk avoiding possibility; and a risk measurement device that obtains the risk value based on the avoiding possibility obtained based on the distance, the frequency of access obtained based on the operation mode of the mechanical device acquired from the control device, and the risk table, records temporal changes of the risk value, and displays the temporal changes of the risk value on the display device.

Risk measurement system

A safety computing device includes a processor and a memory. The memory includes a first memory area and a second memory area having an address different from the first memory area. The processor includes an execution control unit performing a first process including the program process on input data written in the first memory area, and a second process including the program process on input data written in the second memory area and addition of redundancy code to output data written in the second memory area, a result collating unit collating output data to which redundancy code is added in the first and second processes, a computation diagnosis unit diagnosing presence or absence of failure in the processor and the memory, and an abnormality processing unit that, when an abnormality is detected by at least one of redundancy check, collation, and diagnosis, stops outputting output data.

Safety computing device, safety input device, safety output device, and safety controller

A memory diagnosis apparatus include an intra-word testing unit that tests for a coupling fault in each bit in each word in a memory, an inter-word testing unit that tests for a coupling fault between words in each sub-array each being plural words in the memory, and an inter-block testing unit that tests for a coupling fault between sub-arrays in the memory.

Memory diagnosis apparatus

A computer system comprises, a profile for each software module, a software module monitor which detects a failure as failure occurrence information at an early stage at a time of execution of an application based on execution related information recorded in the profile, and notifies a software module manager of the failure, and the software module manager which identifies a failed software module from the failure occurrence information, determines how to handle the software module on the basis of the execution related information and the failure occurrence information, and directs the execution.

Computer system dynamically adding and deleting software modules

A network monitoring device disposed at a node connected to a network includes a determination unit for sending a monitoring packet to a neighboring node upstream or downstream, and for determining that the neighboring node has broken away from the network unless the determination unit does not receive a response packet from the neighbor, and a notification unit for, when the determination unit has determined that the neighboring node upstream or downstream has broken away from the network, broadcasting a notification packet indicating the event to all other nodes connected to the network.

Growing community of inventors

Tokyo, Japan

Hiroo Kanamaru