Abstract: The present invention provides a track transportation system, a method of controlling a track transportation system, and a trackside equipment shape measurement system that can check for an anomaly for railway trackside equipment from multiple viewpoints. Accordingly, a track transportation system according to the present invention is provided with: a surrounding environment observation unit that is installed on a train and obtains surrounding environment observation data by observing a surrounding environment that is for while the train is traveling and includes known trackside equipment; and a trackside equipment shape measurement system that obtains a three-dimensional shape for the trackside equipment by overlapping, on the basis of a track for a rail, a plurality of items of the surrounding environment observation data that include the trackside equipment and have been obtained at a plurality of positions on the track.

Abstract: The purpose is to provide a mobile body control system that can more appropriately perform control of a mobile body capable of vertical takeoff and landing. Comprised are a ground monitoring device (10), and a mobile body control device (20) that can communicate with the ground monitoring device (10). The mobile body control device (20) controls the flight of mobile bodies (51, 61, 71) that are capable of vertical takeoff and landing. The ground monitoring device (10) allocates flight routes (52, 62, 72) when the mobile bodies (51, 61, 71) do takeoff and landing, and is also characterized in that when there is an interference space (80) between one flight route (62) and another flight route (72), unless the one fight route (62) is reserved, flight is not permitted on that flight route.

Abstract: An object of the present invention is to provide an obstacle detection system and an obstacle detection method for a trajectory traveling vehicle, which are capable of detecting a front obstacle on a trajectory and around the trajectory with high accuracy. The system includes: a monitoring area setting processing unit that sets an obstacle monitoring area for detecting an obstacle; a front obstacle monitoring unit that monitors an obstacle in the obstacle monitoring area using a sensor that horizontally scans the front of the train; and an obstacle detection unit that detects an obstacle in the obstacle monitoring area based on a monitoring result by the front obstacle monitoring unit, in which the front obstacle monitoring unit complements a gap in a detection region of the sensor at a first position with a detection region of the sensor while the train moves from the first position to a second position.

Abstract: A train control system includes: a sensor unit; a linear feature configured such that sensor information acquired by the sensor unit includes characteristic information and installed on a track where a train travels; a feature recognition unit calculating a difference value between first sensor information and second sensor information by comparison between the first sensor information acquired during forward monitoring by the sensor unit and the second sensor information acquired by the sensor unit when the linear feature is not shielded and recognizing a presence or absence of shielding of the linear feature based on the difference value; an intrusion determination unit determining a presence or absence of an intrusion into the track based on the presence or absence of the shielding and generating an intrusion determination result; and a train control unit controlling the train by generating a train control instruction based on the intrusion determination.

Abstract: External sensor data is efficiently recorded without changing a resolution or a sampling rate. In a data recording device, an acquired data property storing unit stores, as a data property, an external environment in which external sensor data is to be recorded, an external sensor data property recognizing unit recognizes, as a data property, the external environment corresponding to the external sensor data, a data recording necessity determining unit determines, based on the data property recognized by the external sensor data property recognizing unit and the data property stored in the acquired data property storing unit, whether the external sensor data is required to be recorded, and a data recording unit records the external sensor data when it is determined by the data recording necessity determining unit that the external sensor data is required to be recorded.

Abstract: In a railway signalling system which transmits a control order to an on-board signalling system by a trackside signalling system, the on-board signalling system being mounted on a train running on a line and the control order being compliant with a signalling system of the line, the present invention allows the train to run through into lines with different signalling systems using a single on-board signalling system. When the train enters a line with a different signalling system from a current line, the on-board signalling system installs a train control application program compliant with the signalling system of the entering line. Then, the on-board signalling system executes the train control application program, allowing the train to be controlled on the entering line according to a control order created by the trackside signalling system of the entering line.

Abstract: In a railway signalling system which transmits a control order to an on-board signalling system by a trackside signalling system, the on-board signalling system being mounted on a train running on a line and the control order being compliant with a signalling system of the line, the present invention allows the train to run through into lines with different signalling systems using a single on-board signalling system. When the train enters a line with a different signalling system from a current line, the on-board signalling system installs a train control application program compliant with the signalling system of the entering line. Then, the on-board signalling system executes the train control application program, allowing the train to be controlled on the entering line according to a control order created by the trackside signalling system of the entering line.

Abstract: A technique is offered which is adapted for optimization computations and which makes it possible to carry out an estimation of the state of propagation of radio waves quickly and accurately during a search for the locations of wireless stations. During the optimization computations, sending points and receiving points are set using a parameter search technique. Propagation paths are computed using a far-field approximation technique for Maxwell's equations. A propagation path leading to a local area where the accuracy is low with the far-field approximation technique is extracted from the computed paths. The state of scattering previously calculated using a numerical analysis technique for Maxwell's equations is reflected in the extracted path to modify the propagation path. The communication characteristics of the modified path are evaluated. The steps S101-S105 are performed repeatedly a given number of times. A sending point and a receiving point producing optimum communication characteristics are output.

Abstract: After etching a polysilicon film, when a protective film made of a carbon polymer is formed on a sidewall of the polysilicon film using plasma containing carbons, a metallic material as a lower film is etched using plasma containing a halogen gas under an etching condition in which volatility is improved due to the rise in a wafer temperature or the low pressure of a processing pressure, thereby preventing a side etching and unevenness of a sidewall of the polysilicon film. Further, by using the protective film made of a carbon polymer, metallic substances scattered at the time of etching the metallic material are not directly attached to the polysilicon film, but can be simply removed along with the protective film made of a carbon polymer in an asking step.

Abstract: A technique is offered which is adapted for optimization computations and which makes it possible to carry out an estimation of the state of propagation of radio waves quickly and accurately during a search for the locations of wireless stations. During the optimization computations, sending points and receiving points are set using a parameter search technique. Propagation paths are computed using a far-field approximation technique for Maxwell's equations. A propagation path leading to a local area where the accuracy is low with the far-field approximation technique is extracted from the computed paths. The state of scattering previously calculated using a numerical analysis technique for Maxwell's equations is reflected in the extracted path to modify the propagation path. The communication characteristics of the modified path are evaluated. The steps S101-S105 are performed repeatedly a given number of times. A sending point and a receiving point producing optimum communication characteristics are output.

Abstract: After etching a polysilicon film, when a protective film made of a carbon polymer is formed on a sidewall of the polysilicon film using plasma containing carbons, a metallic material as a lower film is etched using plasma containing a halogen gas under an etching condition in which volatility is improved due to the rise in a wafer temperature or the low pressure of a processing pressure, thereby preventing a side etching and unevenness of a sidewall of the polysilicon film. Further, by using the protective film made of a carbon polymer, metallic substances scattered at the time of etching the metallic material are not directly attached to the polysilicon film, but can be simply removed along with the protective film made of a carbon polymer in an asking step.

Abstract: The invention provides a plasma etching method that does not create any difference in profile between sparse and dense portions of the mask pattern in processing a device having a space width equal to or smaller than 100 nm. An added gas having a high C/F ratio such as C4F8 gas capable of increasing the generation of CF2 radicals that may become sidewall protection film components having a small attachment coefficient is added to the etching gas in order to form sidewall protection films on dense pattern portions, and in addition, Xe gas is added in order to suppress dissociation effect by lowering the electron temperature.

Abstract: An objective of the present invention is to obtain a mutual authentication method in which mutual authentication is carried out securely and conveniently. In order to achieve the above objective, in the mutual authentication process, a private key K0, being an initial value, is stored in a client and a server (Pc0, Ps0). The client generates a random number R, calculates secret data C and authentication data A, and transmits the data items to the server (Pc1). The server receives the authentication data A and the secret data C from the client, and generates a random number Q, calculates secret data S, and authentication data B and returns the data items, as well as updating the private key K0 with a private key K1 (Ps1). The client receives from the server the authentication data B and the secret data S, generates the random number R, calculates secret data C2, authentication data A2, and returns the data items to the server, and updates the private key K0 with the private key K1(Pc2).