Abstract: A device includes a connector including first and second portions, each being configured to establish an independent data connection with a portion of first and second connectors in an external device, and a controller. When the first portion is connected with a third portion of the first external connector, and a request to connect with the second portion is received from the second external connector, the controller determines whether or not to accept the request, and transmit an acceptance signal or a rejection signal to the second external connector through the second portion, according to the determination result.

Abstract: In order to achieve the object described above, a communication management system includes: a surveying instrument including a survey unit , a GPS device, a control unit, and a communication unit ; a management server capable of communicating with the surveying instrument; and a remote terminal capable of communicating with the management server, wherein the remote terminal sets a usable range of the surveying instrument, and sets determination on entrance and exit of the surveying instrument into and from the usable range, and an operation responsive to results of the determination, and makes the management server store these, the surveying instrument transmits own GPS information to the management server, and the management server compares entrance and exit of the surveying instrument into and from the usable range with the GPS information and executes the determination, and executes the operation based on results of the determination.

Abstract: A remote operation system of a surveying instrument includes a surveying instrument including a survey unit, a control unit, a management server capable of communicating with the surveying instrument through the communication network, a remote terminal configured to command the management server to add a function of the surveying instrument through the communication network, and a billing system connected to the communication network, wherein the remote terminal commands the management server MS to consume a quantity of virtual currency corresponding to addition of the function, the management server adds the function of the surveying instrument when the quantity of virtual currency corresponding to addition of the function is consumed based on the command from the remote terminal, and the billing system executes a billing process based on billing data corresponding to the quantity of virtual currency.

Abstract: A wall surface suction travel device includes a first travel unit, a second travel unit, a joint mechanism, and an elastic mechanism. The travel units are aligned along a travel direction and are each configured to travel on a wall surface while being suctioned on the wall surface. The joint mechanism couples the travel units together such that the travel units can pivot relative to each other on a pivot axis extending in a direction that is perpendicular to both a wall surface facing direction and the travel direction. The elastic mechanism includes a first end fixed to the first travel unit, a second end fixed to the second travel unit, and an elastic member configured to be elastically deformed when one of the travel units pivots relative to the other travel unit and a distance between the first end and the second end is shortened.

Abstract: An object is to provide a surveying instrument and system to manage instrument setting and usage data for each personal user. The surveying instrument includes a personal authentication sensor, a control unit, and a storage unit. A personal information registration unit of the control unit acquires personal authentication information from the sensor and stores the personal authentication information in a personal identification information database of the storage unit in association with user information. A personal authentication execution unit of the control unit identifies a user based on whether authentication data acquired by the sensor matches personal authentication information stored in the personal identification information database. A personal setting application unit of the control unit refers to a personal setting information database in the storage unit, and when finding instrument setting saved by the authenticated user, applies the instrument setting and starts the surveying instrument.

Abstract: In order to achieve the object, a communication management system includes: a surveying instrument including a survey unit, a system timer, a control unit, and a communication unit; a management server capable of communicating with the surveying instrument; and a remote terminal capable of communicating with the management server, wherein the remote terminal sets a usable time of the surveying instrument, sets determination on an operating time of the surveying instrument and the usable time, and an operation responding to results of the determination, and makes the management server store these, the surveying instrument transmits an operation start time and an operation end time to the management server, and the management server acquires the operation start time and the operation end time, and compares the usable time and an operating time of the surveying instrument and executes the determination, and executes the operation based on results of the determination.

Abstract: A wall surface suction-type travel device includes a main body, a cushion, a plurality of support wheels, a crawler, and a drive source. The main body includes a wall-surface facing section and a draw-in port. The cushion is disposed on the wall-surface facing section of the main body and surrounding an edge of the draw-in port. The cushion is elastically deformable and has a slide surface sliding on the wall surface when the wall surface suction-type travel device travels on the wall surface. The plurality of support wheels are disposed on the main body. The crawler is an endless belt suspended on the plurality of the support wheels. The crawler has a grip surface put into contact with the wall surface when the wall surface suction-type travel device travels on the wall surface. The drive source is to rotate the crawler.

Abstract: A DC power transmission system interconnects a plurality of AC systems via a DC line. A plurality of power conversion devices are connected between the plurality of AC systems and the DC line. One of the plurality of power conversion devices controls the voltage on the DC line, while the remaining power conversion device controls a current input and output to and from the DC line. In a restart which resumes power conversion from a stopped state for controlling a DC current on the DC line, the power conversion device performing current control monitors the voltage on the DC line and starts a restart operation without transmitting or receiving information to or from the other power conversion device.

Abstract: When short-circuit between DC lines is detected, a control device of a power conversion device performs protection control to turn off semiconductor switching elements in a power converter, and when elimination of the short-circuit between the DC lines is detected, the control device performs restart control of the power converter by giving a voltage command value for causing negative-polarity current in flowing through a diode in an upper arm of a second series body of a second converter cell to flow to a phase arm 4, to each converter cell in first and second arms.

Abstract: A cable holding device for holding a cable, includes a first member, a second member and a fixing member. The first member has a first through hole through which the cable is to pass. The second member has a second through hole through which the cable is to pass. The fixing member fixes the second member to the first member in such a condition that the second through hole partially overlaps the first through hole to hold the cable by an inner periphery of the first through hole and an inner periphery of the second through hole.

Abstract: A safety device for a wall surface suction-type travel device that is configured to travel on a wall surface while being suctioned on the wall surface includes an extending member, a support base, and a safety rope. The extending member is configured to be disposed on the wall surface and bendable by self weight. The support base supports the extending member so as to allow the extending member to move in a direction along which the extending member extends. The safety rope connects the extending member with the wall surface suction-type travel device.

Abstract: A wall surface suction-type travel device is configured to travel on a wall surface while being suctioned on the wall surface. An intermediate chamber communicates with decompression chambers facing the wall surface. A suction device sucks in air from the intermediate chamber to decompress the intermediate chamber. Principal communicating parts allow the decompression chambers to communicate with the intermediate chamber. Secondary communicating parts allow the respective decompression chambers to communicate with the intermediate chamber. Valves face openings of the respective principal communicating parts. An area of an opening of each of the secondary communicating parts is smaller than an area of the opening of a corresponding one of the principal communicating parts.

Abstract: A wall surface suction-type travel device includes a first travel unit, a second travel unit, a joint mechanism, and an elastic mechanism. The first and second travel units are aligned along a travel direction and are each configured to travel on a wall surface while being suctioned on the wall surface. The joint mechanism couples the first and second travel units together such that the travel units can pivot relative to each other on a pivot axis extending in a direction that is perpendicular both to a wall surface facing direction and the travel direction. The elastic mechanism includes a first end fixed to the first travel unit, a second end fixed to the second travel unit, and an elastic member configured to be elastically deformed when one of the first and second travel units pivots relative to the other travel unit and a distance between the first end and the second end is shortened.

Abstract: Provided is a remote operation system for surveying instruments, capable of making surveying instruments execute a necessary operation even when communication with a management server fails.

Abstract: A cable holding device for holding a cable, includes a first member, a second member and a fixing member. The first member has a first through hole through which the cable is to pass. The second member has a second through hole through which the cable is to pass. The fixing member fixes the second member to the first member in such a condition that the second through hole partially overlaps the first through hole to hold the cable by an inner periphery of the first through hole and an inner periphery of the second through hole.

Abstract: When short-circuit between DC lines is detected, a control device of a power conversion device performs protection control to turn off semiconductor switching elements in a power converter, and when elimination of the short-circuit between the DC lines is detected, the control device performs restart control of the power converter by giving a voltage command value for causing negative-polarity current in flowing through a diode in an upper arm of a second series body of a second converter cell to flow to a phase arm 4, to each converter cell in first and second arms.

Abstract: The present invention is provided with a power converter and a control device for controlling the power converter, wherein each of the positive arm and the negative arm is comprised one converter cell or a plurality of converter cells connected in series, each converter cell being comprised: a series unit in which a plurality of switching elements are connected in series to each other; and a DC capacitor connected in parallel to the series unit, and the control device includes a DC voltage command value calculation unit which calculates a voltage command value for outputting, during a DC short circuit fault, AC voltage similar to that in a steady state to the AC terminal of the power converter, and for outputting, to the DC terminal of the power converter, DC voltage that allows the protection relay in the DC line to operate.

Abstract: A mammalian cell suspension prevents pulmonary embolism formation during administration of mammalian cells, such as mammalian stem cells, through a blood vessel, and a preventive agent against pulmonary embolism formation during administration of mammalian cells through a blood vessel. suspending mammalian cells, such as mammalian stem cells, are suspended in a physiological aqueous solution containing trehalose or its derivative, or a salt thereof as an active ingredient to prepare a mammalian cell suspension for preventing pulmonary embolism formation during administration of the mammalian cells through a blood vessel, including the mammalian cells and trehalose or its derivative, or a salt thereof as active ingredients. Examples of the mammalian cells can include pancreatic islet cells, dendritic cells, natural killer cells, alpha/beta T cells, gamma/delta T cells, and cytotoxic T lymphocytes in addition to mammalian stem cells.

Abstract: An object is to provide a communication management system that prevents a surveying instrument from being used in an environment exceeding a guaranteed range of specifications. To achieve the above-described object, a communication management system includes a surveying instrument including a survey unit, a temperature sensor, a control unit, and a communication unit, a management server, and a remote terminal, wherein the remote terminal sets a usable temperature of the surveying instrument, sets a determination on the usable temperature and a temperature acquired by the temperature sensor, and an operation responsive to results of the determination, and makes the management server store these, the surveying instrument transmits its own temperature information to the management server, and the management server makes the determination by comparing the usable temperature and a temperature acquired by the temperature sensor, and executes the operation based on results of the determination.

Abstract: In an electric power conversion device which performs power conversion between multiphase AC and DC, a first converter cell of a first arm for each phase of a power converter includes: a capacitor; a Leg A having upper and lower arms having switching elements; and a Leg B having upper and lower arms one of which has a switching element and the other of which has only a diode, and a second converter cell of a second arm includes: a capacitor; and a Leg Aa having upper and lower arms having switching elements. A control device has a steady mode and a protection mode. When short-circuit between DC terminals of the power converter is detected, the control device switches from the steady mode to the protection mode, turns off all the switching elements of the first converter cell of the first arm, and controls the second converter cell of the second arm so as to perform reactive power compensation operation.