Abstract: The present disclosure includes: an optical fiber cable that contains a first optical fiber connected to a first point and a second point, and contains a second optical fiber; memory that stores instructions; and processor that executes the instructions to perform, in a state where the first optical fiber is connected to a communication unit at the first point side, first optical fiber sensing for sensing vibration applied to the optical fiber cable at the second point side, and perform, in a state where the second optical fiber is connected to the communication unit at the first point side, second optical fiber sensing for sensing the vibration applied to the optical fiber cable at the second point side, and determine whether the second optical fiber is connected to the first point and the second point, based on results of the first and second optical fiber sensing.

Abstract: A method includes: a step of transmitting pulsed light to an optical fiber buried in the ground, and also receiving an optical signal from the optical fiber; a step of extracting, for each of the plurality of manholes, a detection result of the hitting sound by the optical fiber at a time when the manhole is hit, based on the pulsed light and the optical signal, and deciding whether the manhole is located on a laying route of the optical fiber, based on the detection result; and a step of determining, for each manhole located on the laying route, a distance of the optical fiber from a location of the optical fiber sensing apparatus to a location of the manhole, based on the detection result, and determining the laying route, based on a distance of the optical fiber of a manhole on the laying route.

Abstract: An optical fiber sensing system according to this disclosure includes: a first optical fiber network (10A) configured to detect first sensing information about a monitoring target; a second optical fiber network (10B) configured to detect second sensing information about the monitoring target; a first reception unit (21A) configured to receive a first light signal from the first optical fiber network (10A); a second reception unit (21B) configured to receive a second light signal from the second optical fiber network (10B); and an identification unit (22) configured to identify the monitoring target, based on the first sensing information included in the first light signal, and the second sensing information included in the second light signal.

Abstract: A monitoring system according to the present disclosure includes: an optical fiber (10) configured to sense a peripheral environmental state, a monitor's terminal (40), a receiving unit (20) configured to receive an optical signal containing information indicating the environmental state from the optical fiber (10), a detecting unit (32) configured to detect at least one of an accident and an incident, based on the information indicating the environmental state, being included in the optical signal, and a broadcasting unit (33) configured to broadcast that the accident or the incident has occurred to the monitor's terminal (40) when the detecting unit (32) determines that the accident or the incident has occurred.

Abstract: An optical fiber sensing system according to the present disclosure includes an optical fiber network (10) that detects sensing data, a communication unit (21) that receives an optical signal from the optical fiber network (10), an identification unit (22) that identifies status information appropriate to a service providing destination from among a plurality of pieces of status information, an analysis unit (23) that analyzes the identified status information, based on sensing data superimposed on the optical signal, by using an analysis method related to the identified status information among a plurality of analysis methods, and a providing unit (24) that provides the identified status information to the service providing destination.

Abstract: An optical fiber sensing system according to the present disclosure includes: an optical fiber network (10) configured to detect first sensing information related to a first monitoring target and second sensing information related to a second monitoring target; a reception unit (21) configured to receive an optical signal from the optical fiber network (10); a specification unit (22) configured to specify a first monitoring target based on first sensing information superimposed on the optical signal and specify a second monitoring target based on second sensing information superimposed on the optical signal, and a provision unit (23) configured to provide information related to the first monitoring target and information related to the second monitoring target specified by the specification unit (22) for a service providing destination.

Abstract: A detection system according to the present disclosure includes an optical fiber (10X, 10Y) laid in a portable base station area (45) in which a portable base station (40) is installed, a reception unit (20) receiving an optical signal from the optical fiber (10X, 10Y), the optical signal containing information indicating a state of the portable base station area (45), and a detection unit (32) detecting a threat in the portable base station area (45), based on the information indicating a state of the portable base station area (45) being contained in the optical signal.

Abstract: A monitoring system according to the present disclosure includes: an optical fiber (10) configured to sense a peripheral environmental state, a monitor's terminal (40), a receiving unit (20) configured to receive an optical signal containing information indicating the environmental state from the optical fiber (10), a detecting unit (32) configured to detect at least one of an accident and an incident, based on the information indicating the environmental state, being included in the optical signal, and a broadcasting unit (33) configured to broadcast that the accident or the incident has occurred to the monitor's terminal (40) when the detecting unit (32) determines that the accident or the incident has occurred.

Abstract: An optical fiber sensing system according to this disclosure includes: a first optical fiber network (10A) configured to detect first sensing information about a monitoring target; a second optical fiber network (10B) configured to detect second sensing information about the monitoring target; a first reception unit (21A) configured to receive a first light signal from the first optical fiber network (10A); a second reception unit (21B) configured to receive a second light signal from the second optical fiber network (10B); and an identification unit (22) configured to identify the monitoring target, based on the first sensing information included in the first light signal, and the second sensing information included in the second light signal.

Abstract: Provided are: a method for producing fluorenylidene diallylphenols represented by formula (1), the method including a reaction step for reacting fluorenones represented by formula (2) and allylphenols represented by formula (3) in the presence of an acid catalyst, excluding compounds having mercapto groups, the amount of acid catalyst being 0.001-20 mol per mol of compound represented by formula (2); and fluorenylidene diallylphenols represented by formula (4).

Abstract: An object of the present disclosure is to provide an analysis apparatus capable of solving a problem that the amount of data processing increases and the processing load thus increases. An analysis apparatus (10) according to the present disclosure includes: a prediction unit (13) configured to perform machine learning using past traffic data in a communication system to thereby predict future traffic data in the communication system; an analysis unit (11) configured to analyze the future traffic data using first input data and generate a first analysis result corresponding to a first purpose; and an analysis unit (12) configured to analyze the future traffic data using second input data and generate a second analysis result corresponding to a second purpose.

Abstract: Provided are: a method for producing fluorenylidene diallylphenols represented by formula (1), the method including a reaction step for reacting fluorenones represented by formula (2) and allylphenols represented by formula (3) in the presence of an acid catalyst, excluding compounds having mercapto groups, the amount of acid catalyst being 0.001-20 mol per mol of compound represented by formula (2); and fluorenylidene diallylphenols represented by formula (4).

Abstract: There are provided a monitoring apparatus, a wireless communication system, a failure factor deciding method and a program which enable a user to take an appropriate countermeasure for a failure factor which has occurred in a wireless communication apparatus which employs space diversity. The monitoring apparatus (1) includes an obtaining unit (12) and a deciding unit (14). The obtaining unit (12) obtains a history related to a received signal level of a first receiver (22) and a received signal level of a second receiver (24) in a predetermined period from a wireless communication apparatus (20) including the first receiver (22) and the second receiver (24). The deciding unit (14) decides a factor of a failure that has occurred in the wireless communication apparatus (20) based on the history.

Abstract: A monitoring apparatus, a wireless communication system, a failure-cause distinguishing method, and a non-transitory computer readable medium storing a program that enable a user to appropriately cope with fading are provided. A monitoring apparatus (1) includes an acquisition unit (12) and a distinguishing unit (14). The acquisition unit (12) acquires history data which is generated in one or more wireless communication apparatuses and which indicates at least information related to the time at which failures have occurred in each predetermined time period and related to a received signal level therein. The distinguishing unit (14) distinguishes the type of fading that has occurred in the wireless lines related to the wireless communication apparatuses based on the history data.

Abstract: A monitoring device which enables a user to address a failure before said failure occurs, a radio communication system, a failure prediction method and a non-temporary computer-readable medium in which a program is stored are provided. This monitoring device is provided with an acquisition unit and a prediction unit. The acquisition unit acquires history data which is generated in one or more radio communication devices and which indicates at least the time at which a received signal level falls below a preset threshold level in each preset time period. The prediction unit predicts, based on the history data, the possibility of a failure occurring in the radio communication device.

Abstract: There are provided a monitoring apparatus, a wireless communication system, a failure factor deciding method and a program which enable a user to take an appropriate countermeasure for a failure factor which has occurred in a wireless communication apparatus which employs space diversity. The monitoring apparatus (1) includes an obtaining unit (12) and a deciding unit (14). The obtaining unit (12) obtains a history related to a received signal level of a first receiver (22) and a received signal level of a second receiver (24) in a predetermined period from a wireless communication apparatus (20) including the first receiver (22) and the second receiver (24). The deciding unit (14) decides a factor of a failure that has occurred in the wireless communication apparatus (20) based on the history.

Abstract: A monitoring apparatus, a wireless communication system, a failure-cause distinguishing method, and a non-transitory computer readable medium storing a program that enable a user to appropriately cope with fading are provided. A monitoring apparatus (1) includes an acquisition unit (12) and a distinguishing unit (14). The acquisition unit (12) acquires history data which is generated in one or more wireless communication apparatuses and which indicates at least information related to the time at which failures have occurred in each predetermined time period and related to a received signal level therein. The distinguishing unit (14) distinguishes the type of fading that has occurred in the wireless lines related to the wireless communication apparatuses based on the history data.

Abstract: A monitoring device which enables a user to address a failure before said failure occurs, a radio communication system, a failure prediction method and a non-temporary computer-readable medium in which a program is stored are provided. This monitoring device is provided with an acquisition unit and a prediction unit. The acquisition unit acquires history data which is generated in one or more radio communication devices and which indicates at least the time at which a received signal level falls below a preset threshold level in each preset time period. The prediction unit predicts, based on the history data, the possibility of a failure occurring in the radio communication device.

Abstract: Provided is an herbicidal composition which can be applied at a low dose as compared with individual application, and thus is effective to reduce the environmental load on a place where the composition is applied or a periphery thereof, of which the herbicidal spectrum is enlarged, and of which the herbicidal effects last over a long period of time. The herbicidal composition has as active ingredients (a) a herbicidal benzoylpyrazole compound represented by the formula (I) or its salt: wherein Q is —C(O)SR3 or a hydrogen atom, R1 is alkyl or cycloalkyl, R2 is a hydrogen atom or alkyl, R3 is alkyl, cycloalkyl or the like, R4 is alkyl, haloalkyl or the like, R5 is a hydrogen atom, alkyl or the like, R6 is haloalkyl, halogen or the like, and (b) a further herbicidal compound.

Abstract: A radio communication system includes a plurality of base station apparatuses. In the radio communication system, the communication areas of the plurality of base station apparatuses are connected in a loop to form a borderline separating the inside and the outside of a management area. The radio communication system detects a mobile terminal which enters the management area by crossing the borderline on the basis of communication between the base station apparatuses and a mobile terminal.