Patents by Inventor Masafumi Iwata
Masafumi Iwata has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230141642Abstract: An assignment of an operator in accordance with the condition of a plant is dynamically performed. A work assignment device includes a work procedure derivation unit, a scheduling unit, a work assignment evaluation unit, and a work assignment determination unit. The work procedure derivation unit derives a work procedure on the basis of plant information on the plant. The scheduling unit selects a plurality of work assignment candidates each indicating an assignment of an operator to a procedure which is a constituent of the work procedure. The work assignment evaluation unit performs evaluation on each of the plurality of work assignment candidates. The work assignment determination unit determines a work assignment from the plurality of work assignment candidates on the basis of a result of the evaluation.Type: ApplicationFiled: May 21, 2020Publication date: May 11, 2023Applicant: Mitsubishi Electric CorporationInventors: Nami YAMAMOTO, Masafumi IWATA, Mitsunobu YOSHINAGA, Mami NARUSE
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Publication number: 20220390911Abstract: An object of the present invention is to reduce the workload of an operator to attach classification information necessary for estimating operational know-how of a water plant to time-series data of measured values and control values.Type: ApplicationFiled: November 20, 2019Publication date: December 8, 2022Applicant: Mitsubishi Electric CorporationInventors: Ken IMAI, Yohei UENO, Masafumi IWATA
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Patent number: 9394139Abstract: In a multi-car elevator, when two adjacent cars travel in a like direction, an elevator controlling apparatus: determines a shortest stopping position that is a stopping position at which a leading car stops in a shortest stopping distance from its present position; determines an estimated stopping position that is a stopping position of a trailing car if the trailing car is stopped urgently when the trailing car deviates from a speed change path for stopping using decelerating control by the elevator controlling apparatus from its present position and approaches the leading car; and controls a separating distance between the leading car and the trailing car such that the estimated stopping position is before the shortest stopping position.Type: GrantFiled: April 8, 2011Date of Patent: July 19, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takuo Kugiya, Masayuki Kakio, Kiyoshi Funai, Masafumi Iwata
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Patent number: 9108823Abstract: An elevator safety control device realizing suppression in increase in cost and labor hour of installation and maintenance without deteriorating safety of normal safety control functions even when a plurality of safety control functions are provided. The elevator safety control device includes an independence assurance unit assuring independence of a safety control function. The independence assurance unit assures independence of each of the safety control functions by monitoring whether or not the safety control function accesses a memory other than a permitted region. When the independence assurance unit detects an access to the memory other than the permitted region by a predetermined safety control function, the elevator safety control device stops a car.Type: GrantFiled: March 12, 2010Date of Patent: August 18, 2015Assignee: Mitsubishi Electric CorporationInventors: Kazunori Washio, Masafumi Iwata, Takuya Ishioka
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Patent number: 9096410Abstract: A multi-car elevator control device for controlling an operation in such a manner that a rear car can stop away from a periphery of a fire floor. The multi-car elevator control device includes a running-enabled section calculator for calculating, as a running-enabled section, a range of a floor in which a stop can be carried out to open a door without a collision with a front car which stops, a fire floor information acquiring part for acquiring fire floor information, an in-fire stop prohibition section calculator for calculating, based on the fire floor information, an in-fire stop prohibition section for prohibiting the stop of the car, and a running permission deciding part for deciding a running permission of an elevator by referring to the running-enabled section and the in-fire stop prohibition section.Type: GrantFiled: December 20, 2010Date of Patent: August 4, 2015Assignee: Mitsubishi Electric CorporationInventor: Masafumi Iwata
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Patent number: 9079752Abstract: According to the present invention, when a parking floor is set as a remote-hall-operating-panel-installed floor, the parking floor can be canceled. As a result of this, during the movement of a passenger from a remote hall operating panel to an elevator hall, it is possible to prevent a car from being on standby at a remote-hall-operating-panel-installed floor. Therefore, because a car to which a remote hall registration has been assigned can effectively use the moving time of the passenger and hence it is possible to improve the operation efficiency of the whole group supervisory control system. Furthermore, it is possible to reduce useless runs and hence to reduce power consumption.Type: GrantFiled: November 19, 2009Date of Patent: July 14, 2015Assignee: Mitsubishi Electric CorporationInventors: Koji Takeshima, Masayuki Mitsuda, Yoshinori Nonami, Sakurako Tokura, Naohiko Suzuki, Yoshimasa Koba, Masafumi Iwata
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Patent number: 8839914Abstract: An elevator system capable of an efficient evacuation using an elevator in case of a fire, and capable of confirming an evacuee remaining status in a case that an evacuation operation using the elevator is discontinued. An evacuation-call response-order setting section sets a priority order of a response to an evacuation special call registered in an evacuation special call registration section, based on fire occurrence information received by a fire situation reception section. A responding floor is selected based on the priority order. The evacuation operation running section controls an operation of the elevator so as to direct a car to the responding floor selected in this manner. In a case that the evacuation operation availability determination section determines that the evacuation operation is not available, the evacuation operation terminating section causes an evacuation special call remaining floor display section to display a remaining evacuation special call registration floor.Type: GrantFiled: January 18, 2010Date of Patent: September 23, 2014Assignee: Mitsubishi Electric CorporationInventors: Masafumi Iwata, Masahiko Konishi, Kiyoji Kawai, Toshiyuki Kodera, Akihisa Miyajima
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Patent number: 8646581Abstract: An elevator group management system capable of appropriately performing car assignment processing without leaving any one behind and enabling a passenger to recognize a car to board without fail. A fellow passenger group assignment section assigns fellow passenger groups to respective passengers based on the contents of hall call registration for each floor received from a hall operation panel, and causes the hall operation panel that has sent the hall call registration to display names of the assigned fellow passenger. A fellow passenger group car assignment section executes, on the fellow passenger groups assigned by the fellow passenger group assignment section, car assignment processing of assigning any of a plurality of cars as an assigned car and, in a case of determining the assigned car, provides car control sections with a passenger guide command containing at least combination information on this assigned car that has been determined and the fellow passenger group.Type: GrantFiled: September 3, 2009Date of Patent: February 11, 2014Assignee: Mitsubishi Electric CorporationInventors: Masafumi Iwata, Naohiko Suzuki, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami
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Patent number: 8602172Abstract: A car-based running power computing mechanism computes running power values of each car in both cases including cases before and after a newly generated hall call is assigned. A car-based regenerative power computing mechanism computes regenerative power values of each car in the both cases. A car-based future running power computing mechanism computes future running power values of each car in the both cases. A car-based future regenerative power computing mechanism computes future regenerative power values of each car in the both cases. A car-based assigned total evaluation index computing mechanism obtains an in-travel power consumption value and an in-future-travel power consumption value based on the running power values, regenerative power values, future running power values, future regenerative power values and the like, to thereby compute assigned total evaluation indices of each car in the both cases.Type: GrantFiled: September 18, 2009Date of Patent: December 10, 2013Assignee: Mitsubishi Electric CorporationInventors: Naohiko Suzuki, Masafumi Iwata, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami
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Publication number: 20130299282Abstract: In a multi-car elevator, when two adjacent cars travel in a like direction, an elevator controlling apparatus: determines a shortest stopping position that is a stopping position at which a leading car stops in a shortest stopping distance from its present position; determines an estimated stopping position that is a stopping position of a trailing car if the trailing car is stopped urgently when the trailing car deviates from a speed change path for stopping using decelerating control by the elevator controlling apparatus from its present position and approaches the leading car; and controls a separating distance between the leading car and the trailing car such that the estimated stopping position is before the shortest stopping position.Type: ApplicationFiled: April 8, 2011Publication date: November 14, 2013Applicant: Mitsubishi Electric CorporationInventors: Takuo Kugiya, Masayuki Kakio, Kiyoshi Funai, Masafumi Iwata
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Patent number: 8567569Abstract: An elevator group management system improving operational efficiency in consideration of a situation change that has occurred after a destination floor registration in a hall. An assigned car review mechanism executes assigned car review processing in units of review registration information sets each including at least one piece of provisionally assigned car registration information managed by a registered destination floor hall call management section during a review period. After ending the assigned car review processing, the assigned car review mechanism modifies the contents of the provisionally assigned car registration information in the registered destination floor hall call management section based on the contents of the review registration information set after modification. That is, the assigned car review mechanism newly registers the provisionally assigned car registration information after review and erases the provisionally assigned car registration information before review at the same time.Type: GrantFiled: September 3, 2009Date of Patent: October 29, 2013Assignee: Mitsubishi Electric CorporationInventors: Naohiko Suzuki, Masafumi Iwata, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami
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Patent number: 8505692Abstract: Provided is an elevator system which can perform an optimum assignment suited to the operation condition of elevators and can appropriately notify a user of accurate information. For this purpose, there are provided a call registration device which registers a destination call before boarding and a notification device which provides elevator information. Normally, immediately after registration of a destination call, the notification device provides information on an assigned car. On the other hand, when a prescribed assignment review condition is met, immediately after registration of a destination call, the notification device provides information to the effect that the registration has been accepted, thereafter the assignment of the elevator is reviewed, and the notification device provides information on an assigned car when the elevator responds to the destination call.Type: GrantFiled: September 18, 2008Date of Patent: August 13, 2013Assignee: Mitsubishi Electric CorporationInventors: Sakurako Tokura, Yoshimasa Koba, Koji Takeshima, Masayuki Mitsuda, Yoshinori Nonami, Masafumi Iwata, Naohiko Suzuki, Shingo Kobori
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Patent number: 8493230Abstract: Provided is an elevator evacuation supporting system which can appropriately guide people living in a building to the hall of an elevator in the case of occurrence of a disaster.Type: GrantFiled: August 27, 2008Date of Patent: July 23, 2013Assignee: Mitsubishi Electric CorporationInventors: Shiro Hikita, Kiyoji Kawai, Masahiko Konishi, Masafumi Iwata
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Publication number: 20120292136Abstract: An elevator safety control device realizing suppression in increase in cost and labor hour of installation and maintenance without deteriorating safety of normal safety control functions even when a plurality of safety control functions are provided. The elevator safety control device includes an independence assurance unit assuring independence of a safety control function. The independence assurance unit assures independence of each of the safety control functions by monitoring whether or not the safety control function accesses a memory other than a permitted region. When the independence assurance unit detects an access to the memory other than the permitted region by a predetermined safety control function, the elevator safety control device stops a car.Type: ApplicationFiled: March 12, 2010Publication date: November 22, 2012Applicant: Mitsubishi Electric CorporationInventors: Kazunori Washio, Masafumi Iwata, Takuya Ishioka
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Publication number: 20120279804Abstract: A multi-car elevator control device for controlling an operation in such a manner that a rear car can stop away from a periphery of a fire floor. The multi-car elevator control device includes a running-enabled section calculator for calculating, as a running-enabled section, a range of a floor in which a stop can be carried out to open a door without a collision with a front car which stops, a fire floor information acquiring part for acquiring fire floor information, an in-fire stop prohibition section calculator for calculating, based on the fire floor information, an in-fire stop prohibition section for prohibiting the stop of the car, and a running permission deciding part for deciding a running permission of an elevator by referring to the running-enabled section and the in-fire stop prohibition section.Type: ApplicationFiled: December 20, 2010Publication date: November 8, 2012Applicant: Mitsubishi Electric CorporationInventor: Masafumi Iwata
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Patent number: 8245819Abstract: An evacuation support apparatus for an elevator causes an elevator to perform an evacuation operation for conveying people stranded in a building including a plurality of floors to an evacuation floor in an emergency. Further, the evacuation support apparatus for an elevator includes rescue floor setting means for setting the floor determined based on a predetermined condition as a rescue floor, the floor being selected from the plurality of floors, and response floor setting means for registering a call only for the floor on which a call input device for specific persons is operated in a case of the evacuation operation as the call for an evacuation response floor, the call input device for specific persons and a call input device for general persons being provided on each of the plurality of floors. The elevator includes a common car which moves in a reciprocating manner between the rescue floor and the evacuation floor in the case of the evacuation operation.Type: GrantFiled: October 10, 2007Date of Patent: August 21, 2012Assignee: Mitsubishi Electric CorporationInventors: Shiro Hikita, Kiyoji Kawai, Masahiko Konishi, Masafumi Iwata
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Publication number: 20120168261Abstract: According to the present invention, when a parking floor is set as a remote-hall-operating-panel-installed floor, the parking floor can be canceled. As a result of this, during the movement of a passenger from a remote hall operating panel to an elevator hall, it is possible to prevent a car from being on standby at a remote-hall-operating-panel-installed floor. Therefore, because a car to which a remote hall registration has been assigned can effectively use the moving time of the passenger and hence it is possible to improve the operation efficiency of the whole group supervisory control system. Furthermore, it is possible to reduce useless runs and hence to reduce power consumption.Type: ApplicationFiled: November 19, 2009Publication date: July 5, 2012Applicant: Mitsubishi Electric CorporationInventors: Koji Takeshima, Masayuki Mitsuda, Yoshinori Nonami, Sakurako Tokura, Naohiko Suzuki, Yoshimasa Koba, Masafumi Iwata
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Publication number: 20110272221Abstract: An elevator system capable of an efficient evacuation using an elevator in case of a fire, and capable of confirming an evacuee remaining status in a case that an evacuation operation using the elevator is discontinued. An evacuation-call response-order setting section sets a priority order of a response to an evacuation special call registered in an evacuation special call registration section, based on fire occurrence information received by a fire situation reception section. A responding floor is selected based on the priority order. The evacuation operation running section controls an operation of the elevator so as to direct a car to the responding floor selected in this manner. In a case that the evacuation operation availability determination section determines that the evacuation operation is not available, the evacuation operation terminating section causes an evacuation special call remaining floor display section to display a remaining evacuation special call registration floor.Type: ApplicationFiled: January 18, 2010Publication date: November 10, 2011Applicant: Mitsubishi Electric CorporationInventors: Masafumi Iwata, Masahiko Konishi, Kiyoji Kawai, Toshiyuki Kodera, Akihisa Miyajima
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Patent number: 8006807Abstract: An elevator group control apparatus includes a parameter calculating unit for determining a weighting factor for an item to be evaluated, which is calculated from a running distance estimated by an estimation arithmetic operation unit by taking into consideration a relation between a running distance of an elevator and a passenger average waiting time, and an evaluation arithmetic operation unit for calculating a total evaluated value from an item to be evaluated of a passenger waiting time, an item to be evaluated of the running distance, and the weighting factor determined by the parameter calculating unit. The elevator group control apparatus selects an elevator whose total evaluated value is the best from among the plurality of elevators, and assigns a hall call to the selected elevator.Type: GrantFiled: January 19, 2007Date of Patent: August 30, 2011Assignee: Mitsubishi Electric CorporationInventors: Shingo Kobori, Masafumi Iwata, Naohiko Suzuki, Shiro Hikita
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Publication number: 20110198160Abstract: A car-based running power computing mechanism computes running power values of each car in both cases including cases before and after a newly generated hall call is assigned. A car-based regenerative power computing mechanism computes regenerative power values of each car in the both cases. A car-based future running power computing mechanism computes future running power values of each car in the both cases. A car-based future regenerative power computing mechanism computes future regenerative power values of each car in the both cases. A car-based assigned total evaluation index computing mechanism obtains an in-travel power consumption value and an in-future-travel power consumption value based on the running power values, regenerative power values, future running power values, future regenerative power values and the like, to thereby compute assigned total evaluation indices of each car in the both cases.Type: ApplicationFiled: September 18, 2009Publication date: August 18, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Naohiko Suzuki, Masafumi Iwata, Shingo Kobori, Sakurako Tokura, Yoshimasa Koba, Kouji Takeshima, Masayuki Mitsuda, Yoshinori Nonami