Abstract: A detection device includes: a monitoring unit configured to monitor a periodic message and an event message as messages in an in-vehicle network, each message having, assigned thereto, identification information of a transmission source and a sequence number; a counter unit configured to change a counter value corresponding to the identification information, when the detection device has received the event message from the in-vehicle network; and a detection unit configured to compare the sequence number with the counter value, based on a result of monitoring, and perform provisional determination for detection of an unauthorized message, based on a result of the comparison. The detection unit performs conclusive determination for detection of the unauthorized message, based on an interval of messages that satisfy a predetermined condition regarding the sequence number, among messages to which the same identification information is assigned, and on a predetermined transmission cycle of the periodic message.

Abstract: An electric mobility vehicle including a front-wheel-side body, a rear-wheel-side body, a seat on which a passenger sits in an in-use state, and a linking mechanism that links the front-wheel-side body with the rear-wheel-side body so as to be pivotable about a pivoting axis extending in a vehicle width direction. The electric mobility vehicle is foldable by pivoting the front-wheel-side body and the rear-wheel-side body relative to each other in a vehicle front-to-rear direction. The electric mobility vehicle includes a footrest provided in the front-wheel-side body, a front-end roller or a front-end caster provided in the front-wheel-side body and disposed at a vehicle front side relative to a front end of the front wheel in the in-use state, and comes into contact with the floor surface in the folded state to make the electric mobility vehicle stand alone.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a cab mounted on the upper turning body, an attachment attached to the upper turning body, a hardware processor, and a display device. The hardware processor is configured to move the end attachment of the attachment relative to an intended work surface with the ground being pressed with a predetermined force by the working part of the end attachment, in response to a predetermined operation input related to the attachment. The display device is configured to display information on an irregularity of the ground.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a cab mounted on the upper turning body, an attachment attached to the upper turning body, a hardware processor, and a display device. The hardware processor is configured to move the end attachment of the attachment relative to an intended work surface in response to a predetermined operation input related to the attachment. The display device is configured to display information on the hardness of the ground.

Abstract: A shovel includes a lower traveling body that runs; an upper rotating body that is rotatably mounted on the lower traveling body; an attachment attached to the upper rotating body; a display device; and a processor that obtains a current shape of a target ground, calculates a recommended line that is suitable to excavate, with the attachment, the target ground having the obtained current shape, and displays the current shape of the target ground and the recommended line on the display device.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a cab provided on the upper turning body, an orientation detector configured to detect the relative relationship between the orientation of the upper turning body and the orientation of the lower traveling body, and an alarm device configured to output an alarm when a backward travel operation is performed while it is detected by the orientation detector that the orientation of the upper turning body and the orientation of the lower traveling body are in a predetermined relationship. The backward travel operation is an operation to cause the lower traveling body to travel in the backward direction of the upper turning body.

Abstract: The technology disclosed in the present specification is embodied as a support device for supporting maintenance on an apparatus including an expendable component. The support device includes at least one computer. The at least one computer executes: a process of acquiring an index indicative of a consumption level of the expendable component; a process of, at a time point when the index indicative the consumption level reaches a predetermined threshold, specifying a necessary period of time required for replacement of the expendable component at the time point; and a process of restricting an operation of the apparatus when a remaining period of time of the expendable component, the remaining period of time being associated with the threshold, is shorter than the necessary period of time required for the replacement.

Abstract: A shovel includes a lower traveling body, an upper swiveling body that is rotatably mounted on the lower traveling body, and a controller configured to perform straight facing control by which an actuator is operated to cause the upper swiveling body to face a target construction surface straight, based on information related to the target construction surface and information related to a direction of the upper swiveling body.

Abstract: An electric mobility vehicle including a front-wheel-side body, a rear-wheel-side body, a seat on which a passenger sits in an in-use state, and a linking mechanism that links the front-wheel-side body with the rear-wheel-side body so as to be pivotable about a pivoting axis extending in a vehicle width direction. The electric mobility vehicle is foldable by pivoting the front-wheel-side body and the rear-wheel-side body relative to each other in a vehicle front-to-rear direction. The electric mobility vehicle includes a footrest provided in the front-wheel-side body, a front-end roller or a front-end caster provided in the front-wheel-side body and disposed at a vehicle front side relative to a front end of the front wheel in the in-use state, and comes into contact with the floor surface in the folded state to make the electric mobility vehicle stand alone.

Abstract: A detection device includes: an acquisition unit configured to acquire a target distribution that is a distribution of reception intervals of periodic messages transmitted in an in-vehicle network; an extraction unit configured to extract a part of the target distribution acquired by the acquisition unit, in accordance with a predetermined criterion; and a detection unit configured to perform a detection process of detecting an unauthorized message, based on the part, of the target distribution, extracted by the extraction unit.

Abstract: A shovel includes a lower traveling body, an upper turning body, an attachment including a boom, an arm, and an end attachment, a boom state detector configured to detect the state of the boom, an arm state detector configured to detect the state of the arm, an end attachment state detector configured to detect the state of the end attachment, and a hardware processor. The hardware processor is configured to obtain information on the position of the end attachment based on the respective outputs of the detectors, correlate the information on the position of the end attachment with information on the position of an underground object obtained based on the output of an underground object detector, and calculate the distance between the end attachment and the underground object. The hardware processor is further configured to control the shovel such that the distance is prevented from falling below a predetermined value.

Abstract: A shovel includes a traveling undercarriage, an upper turning structure, an attachment, an end attachment position detecting device, an object detecting device, and a processor. The upper turning structure is turnably mounted on the traveling undercarriage. The attachment is attached to the upper turning structure, and includes an end attachment at an end thereof. The end attachment position detecting device is configured to detect the position of the end attachment. The object detecting device is configured to detect the position of an object. The processor is configured to control the movement of at least one of the attachment and the upper turning structure, based on the relative positional relationship between the excavation completion position of the end attachment and the position of the object.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, an engine mounted on the upper turning body, a hydraulic pump mounted on the upper turning body and configured to be driven by the engine, and processing circuitry configured to collect diagnostic data of the shovel, in response to detecting that the engine is driven under a constant driving condition.

Abstract: A shovel includes a lower traveling body that runs; an upper rotating body that is rotatably mounted on the lower traveling body; an attachment attached to the upper rotating body; a display device; and a processor that obtains a current shape of a target ground, calculates a recommended line that is suitable to excavate, with the attachment, the target ground having the obtained current shape, and displays the current shape of the target ground and the recommended line on the display device.

Abstract: A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a cab mounted on the upper turning body, an operating apparatus installed in the cab, an actuator driven with the operating apparatus, and a processor configured to restrict the movement of the actuator. The processor is configured to determine the necessity of a restriction related to the movement of the actuator in accordance with whether the operating apparatus is operated with an operator's hand.

Abstract: A shovel includes a lower traveling body that runs; an upper rotating body that is rotatably mounted on the lower traveling body; an attachment attached to the upper rotating body; a display device; and a processor that obtains a current shape of a target ground, calculates a recommended line that is suitable to excavate, with the attachment, the target ground having the obtained current shape, and displays the current shape of the target ground and the recommended line on the display device.

Abstract: An excavator includes a lower traveling body; an upper turning body mounted so as to turn with respect to the lower traveling body; a hydraulic pump connected to an engine; a front work machine including an end attachment, an arm, and a boom that are driven by hydraulic fluid from the hydraulic pump; a front work machine orientation detection part configured to detect an orientation of the front work machine; and a control unit configured to control a power of the hydraulic pump according to the orientation of the front work machine within a work area, based on a value detected by the front work machine orientation detection part.