WO2023042380A1 - 占有面積検出システム、占有面積検出方法、及び、エレベーターシステム - Google Patents
占有面積検出システム、占有面積検出方法、及び、エレベーターシステム Download PDFInfo
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- WO2023042380A1 WO2023042380A1 PCT/JP2021/034342 JP2021034342W WO2023042380A1 WO 2023042380 A1 WO2023042380 A1 WO 2023042380A1 JP 2021034342 W JP2021034342 W JP 2021034342W WO 2023042380 A1 WO2023042380 A1 WO 2023042380A1
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- car
- distance sensor
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- effective area
- load
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- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 238000000605 extraction Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims description 24
- 238000004364 calculation method Methods 0.000 claims description 17
- 239000000284 extract Substances 0.000 claims description 14
- 238000013461 design Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 22
- 238000004891 communication Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- SAZUGELZHZOXHB-UHFFFAOYSA-N acecarbromal Chemical compound CCC(Br)(CC)C(=O)NC(=O)NC(C)=O SAZUGELZHZOXHB-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
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- 239000000470 constituent Substances 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Definitions
- the present invention relates to an occupied area detection system, an occupied area detection method, and an elevator system that detect the state of empty space in an elevator car or the space occupied by passengers and cargo.
- Patent Reference 1 a configuration has been disclosed in which the load in the car is detected by a weight detection unit (load detection device) provided in the car, and the occupancy rate is calculated according to the load (Patent Reference 1).
- the occupancy rate of the car can be displayed in an easy-to-understand manner by changing the lighting state of the display device in stages according to the load capacity of the car.
- Patent Document 2 discloses an invention relating to an elevator system having a group control device for controlling a plurality of elevators as one group and providing users with more efficient operation services.
- a group control device for controlling a plurality of elevators as one group and providing users with more efficient operation services.
- the load value determination may determine that there is vacant space even though the vacant space is actually small.
- the present invention provides an occupied area detection system, an occupied area detection method, and an elevator system that can more accurately detect the empty space in the car or the space occupied by passengers and cargo. aim.
- the occupied area detection system of the present invention includes a distance sensor installed on the ceiling side of the car and capable of measuring the distance to the load in the car. Prepare.
- an effective area setting unit that calculates the effective area in the car, and sensor information that extracts the mounting position coordinates of the distance sensor and calculates the data acquisition range of the distance sensor corresponding to the effective area based on the mounting position coordinates. and an extractor.
- an occupied area detection unit is provided for calculating the occupied area of the load within the effective area based on the distance data detected by the distance sensor and the data acquisition range.
- the occupied area detection method of the present invention calculates the effective area in which a load can be loaded, and the coordinates of the mounting position of a distance sensor that is provided on the ceiling side of the car and can measure the distance to the load in the car. to extract Then, based on the mounting position coordinates, the data acquisition range of the distance sensor corresponding to the effective area is calculated. Calculate the occupied area.
- the elevator system of the present invention includes an elevator that moves a car up and down, and the occupied area detection system.
- FIG. 1 is a schematic configuration diagram of an elevator system 100 according to one embodiment of the present invention
- FIG. It is a schematic block diagram when the car 2 is seen from the inside. It is a schematic block diagram when the car 2 is seen from the upper surface.
- 3 is a flow showing a method of setting the data acquisition range of the distance sensor 3 installed in the car 2
- 5 is a flow showing a method of extracting an effective area 40 in step S1 of FIG. 4
- 4 is a flow showing a method of extracting a data acquisition range of the distance sensor 3
- 6 is a flow showing a setting method for obtaining distance data from the distance sensor 3 in the sensor information obtaining unit 24.
- FIG. 10 is a schematic diagram when the information acquired in steps S33 and S34 is reflected in the distance data detected by the distance sensor 3;
- 3 is a flow showing a method of calculating an occupied area in an occupied area detection unit 25;
- FIG. 2 is a schematic configuration diagram showing how distance data acquired by a distance sensor 3; It is a flow which shows the allocation arithmetic processing method of the elevator in one Embodiment of this invention. In this flow, it is determined whether the assigned elevator is full or not, and if the service is unavailable, a passage command is issued.
- FIG. 1 is a schematic configuration diagram of an elevator system 100 according to one embodiment (hereinafter referred to as this embodiment) of the present invention.
- the elevator system 100 of the present embodiment includes the occupied area detection system of the present invention, and the elevator system 100 shown in FIG. 1 may be the occupied area detection system.
- a footprint detection system may be configured.
- the elevator system 100 of this embodiment includes an elevator 1, an elevator operation management unit 11, an elevator control unit 10, an in-car camera control unit 18, and a distance sensor control unit 19. Further, the elevator system 100 comprises a host computer 14 , a statistical database (DB) 12 and a maintenance database (DB) 13 which are connected via a communication relay unit 17 and a communication network 16 .
- DB statistical database
- DB maintenance database
- the elevator 1 ascends and descends in a hoistway (not shown) formed in a building structure.
- the elevator 1 includes a car 2 on which people and cargo (hereinafter referred to as load) are placed, a main rope 35, a counterweight 33, and a hoist 34.
- the hoisting machine 34 is wound around the main rope 35, and raises and lowers the car 2 under the control of the elevation control section 21 of the elevator control section 10, which will be described later.
- the car 2 is connected to the counterweight 33 via the main rope 35 and ascends and descends in the hoistway.
- FIG. 2 shows a schematic diagram of the car 2 viewed from the inside.
- FIG. 3 shows a schematic configuration diagram of the car 2 viewed from above.
- passengers P1, P2, and P3 and luggage B are illustrated as an example of the load.
- the depth direction of the car 2 is the Y direction
- the height direction of the car 2 is the Z direction
- the direction perpendicular to the Y and Z directions is the X direction.
- the car 2 includes a car floor 2a, side walls 2b erected around the car floor 2a, and a ceiling 2c provided at a position facing the car floor 2a through the car room.
- a space surrounded by the car floor 2a, the side walls 2b, and the ceiling 2c serves as a car room capable of accommodating a load.
- a car door 31 is provided in a car-side three-sided frame provided on the side wall 2b on the hall side of the side walls 2b.
- the car door 31 is provided at a position corresponding to a landing door (not shown) provided on the floor side when the car 2 stops on each floor.
- the car door 31 and the landing door are opened and closed under the control of the door opening/closing control section 22, which will be described later.
- the side wall 2b near the car door 31 is provided with a destination floor registration button for the user to register the destination floor, and an input/output device 28 for displaying information on the registered destination floor and the current position of the car 2. ing.
- the side walls 2b of the car 2 are provided with handrails 30 for assisting the movement of passengers.
- the handrail 30 is made of a rod-shaped member and is attached at a position separated from the side wall 2b to the extent that the passenger can catch it.
- an in-car camera 4 (Fig. 1) and a distance sensor 3 are provided on the side of the ceiling 2c of the car of the elevator 1.
- the in-car camera 4 is used for monitoring purposes, for example, and is composed of an image sensor capable of imaging the inside of the car 2 .
- the in-car camera 4 takes an appropriate image of the inside of the car 2 under the control of an in-car camera control section 18, which will be described later.
- the distance sensor 3 is provided on the ceiling 2c side at a position separated from the side wall 2b by a predetermined distance. It is installed upward in the direction.
- the distance sensor 3 is a sensor that detects the distances to the loads P1, P2, P3, and B in the car 2 .
- the distance sensor 3 is composed of, for example, a ToF (Time of Flight) sensor or a millimeter wave sensor.
- a ToF sensor is a sensor capable of measuring the distance to a load by modulating and emitting light of a specific wavelength, and receiving and processing the light reflected by the radiated light from the load. When a ToF sensor is used as the distance sensor, a separate light is required to emit light of a specific wavelength.
- a millimeter wave sensor is a sensor that can measure the distance to a load by modulating and transmitting radio waves of a specific frequency and receiving and processing the reflected waves generated when the transmission collides with the load. .
- the distance sensor 3 since the distance sensor 3 is installed above the lighting equipment in the vertical direction, it is preferably composed of a millimeter wave sensor.
- each part constituting the elevator 1 described above is appropriately connected to the elevator operation management part 11, the elevator control part 10, the in-car camera control part 18, and the distance sensor control part 19, and controlled respectively.
- the elevator system 100 of the present embodiment includes a plurality of elevators from No. 1 to No. N, and these elevators 1 are responsible for elevator operation management. Group management is controlled by the unit 11 .
- the elevator controller 10 , the in-car camera controller 18 , and the distance sensor controller 19 are provided for each elevator 1 and control each elevator 1 .
- the elevator operation management unit 11 group-manages the elevators 1 of all elevators.
- the elevator control unit 10 has, for example, an elevation control unit 21, a door opening/closing control unit 22, and a distance sensor setting unit 23.
- the elevating control unit 21 controls a hoisting machine 34 (main machine) responsible for running the car 2 and the like.
- the main rope 35 is wound around the hoist 34, one end of which is connected to the car 2 on which people and goods are placed, and the other end of which is connected to the counterweight 33.
- the hoist 34 operates under the control of the elevation control unit 21, and the car 2 moves up and down on the hoistway.
- the elevator system 100 provides a service related to the ascending/descending movement of the elevator 1 to people and objects in the car 2 .
- the door opening/closing control unit 22 causes a door drive control unit (not shown) that drives and controls the car door 31 of each car 2 when the car 2 arrives at a predetermined landing floor. and an instruction for opening and closing a landing door (not shown).
- the distance sensor setting unit 23 sets the timing for acquiring distance data by the distance sensor 3 and transmits the information to the sensor information acquisition unit 24 of the distance sensor control unit 19 .
- the distance sensor setting unit 23 generates the acquisition timing of the distance data of the distance sensor 3 based on preset information such as the timing when the car door 31 is closed and the timing when the car 2 starts to go up and down. Then, the distance sensor setting unit 23 transmits the generated information about the acquisition timing of the distance data to the sensor information acquisition unit 24 . Further, the distance sensor setting unit 23 holds initial setting values of the data acquisition range and resolution of the distance data in the distance sensor 3 .
- the elevator operation management unit 11 has an allocation calculation processing unit 20 .
- the allocation calculation processing unit 20 determines the number of the elevator 1 to be stopped at the landing floor requested to be called, based on the occupancy level of the car 2 calculated by the occupied area detection unit 25, which will be described later, or the information on the empty space. do.
- the allocation method in the allocation calculation processing unit 20 will be described in detail later.
- the in-car camera control unit 18 drives and controls the in-car camera 4 under the control of the elevator control unit 10 .
- the image acquired by the in-car camera 4 is stored, for example, in a storage unit (not shown) provided in the in-car camera control unit 18 .
- images captured by the in-car camera 4 may be stored in the statistics DB 12 and/or the maintenance DB 13 via the communication path 190, the communication relay unit 17, the communication network 16, and the host computer 14.
- the in-car camera 4 may take images at all times, or may take images when the cargo is sensed.
- the imaging timing of the in-car camera 4 can be changed in various ways.
- the distance sensor control section 19 includes a sensor information acquisition section 24 and an occupied area detection section 25 .
- the sensor information acquisition unit 24 acquires distance data detected by the distance sensor 3 at a predetermined timing (hereinafter referred to as distance data acquisition timing) transmitted from the distance sensor setting unit 23, which will be described later.
- the predetermined distance data acquisition timing is, for example, the timing at which the car door 31 is closed, the timing at which the car 2 starts to move up and down, and the like.
- the sensor information acquisition unit 24 receives a signal related to the distance data acquisition timing from the elevator control unit 10, thereby acquiring distance information corresponding to the distance data acquisition timing. In the case of the configuration of FIG.
- the distance data acquired by the distance sensor 3 is processed by the distance sensor control unit 19 via the communication path 190, but the configuration is not limited to this.
- the function of the distance sensor control section 19 may be incorporated into the distance sensor 3 and processed data may be exchanged with the elevator control section 10 via the communication path 190 .
- the occupied area detection unit 25 calculates the occupied area of the cargo in the car 2 based on the distance data acquired by the distance sensor 3 and the sensor information acquired by the sensor information acquisition unit 24 described later. A method of calculating the occupied area in the occupied area detector 25 will be described in detail later.
- the host computer 14 communicates with the elevator 1, the car camera control unit 18, the distance sensor control unit 19, the elevator control unit 10, and the elevator operation management unit 11, through the communication path 190, the communication relay unit 17, and the communication network 16. It is the computer that is connected.
- the host computer 14 has an effective area setting section 15 and a sensor information extraction section 26 .
- the effective area setting unit 15 sets the measurement range (hereinafter referred to as effective area 40) detected by the distance sensor 3 in the space in the car 2 in which loads such as people and luggage can be placed.
- the effective area setting unit 15 extracts the information of the car 2 stored in the maintenance DB 13, and sets the effective area 40 from the information. A method of setting the effective area 40 in the effective area setting unit 15 will be described in detail later.
- the sensor information extraction unit 26 extracts the resolution of the distance sensor 3 from the information of the distance sensor 3 stored in the maintenance DB 13. Further, the sensor information extraction unit 26 extracts the data acquisition range of the distance sensor 3 from information on the mounting position coordinates of the distance sensor 3 and information on the effective area 40 set by the effective area setting unit 15 . A method for extracting the data acquisition range in the distance sensor 3 will be described in detail later.
- the maintenance DB 13 is a database in which information relating to the identification numbers, models, and specifications of constituent equipment of all elevators 1 subject to maintenance is accumulated.
- the drawing of the car 2 and its 3D information the drawing of the car 2 and its 3D information
- the resolution of the distance sensor 3 installed in the car 2 the information of the mounting position coordinates of the distance sensor 3 and
- the statistics DB 12 accumulates information on various statistics, such as statistics on the number of passengers in all elevators 1 subject to maintenance, statistics on stopped floors, and statistics on details of failures.
- the statistics regarding the occupied area calculated by the occupied area detection unit 25 are updated as needed and stored.
- FIG. 4 is a flow showing a method of setting the data acquisition range of the distance sensor 3 installed in the car 2. As shown in FIG.
- the drawing of the car 2 and its 3D information stored in the maintenance DB 13 are input to the effective area setting unit 15 (step S1).
- the effective area setting unit 15 uses the input 3D drawing information to extract the effective area 40 of the car 2 and the area of the effective area 40 (hereinafter referred to as the effective area) (step S2).
- the effective area 40 is a range separated from the side wall 2b and the car door 31 by a predetermined distance, excluding obstacles such as handrails 30 and the like installed in the car 2 in advance. is set to In other words, the effective area 40 is set within the car 2 within a range in which the cargo is expected to be actually loaded.
- the drawing and its 3D information are used as input information, but the configuration is not limited to this, and setting information obtained in cooperation with data obtained by digitizing design information may be used as input information.
- the sensor information extraction unit 26 extracts the data acquisition range corresponding to the effective area 40 based on the information on the effective area 40 set by the effective area setting unit 15 and the mounting position coordinates of the distance sensor 3 received from the maintenance DB 13. is extracted (step S3).
- the data acquisition range is the data acquisition range of the distance sensor 3 corresponding to the effective area 40 set based on the mounting position coordinates of the distance sensor 3 .
- the data acquisition range of the distance sensor 3 can be associated with the effective area 40 . A method for extracting the data acquisition range will be described in detail later.
- step S3 the sensor information extraction unit 26 also extracts information regarding the resolution of the distance sensor 3 from the maintenance DB 13.
- the effective area 40, the data acquisition range, and the resolution information extracted by the processing in steps S2 and S3 are fed back to the maintenance DB 13, and the setting information of the distance sensor 3 is updated in the maintenance DB 13.
- Information on the effective area 40, the data acquisition range, and the resolution are updated as needed when the specifications of the car 2 of the elevator 1 are changed, or when the coordinates of the mounting position of the distance sensor 3 are changed. be done.
- FIG. 5 is a flow showing a method of extracting the effective area 40 in step S1 of FIG.
- the effective area setting unit 15 sets threshold values from the side wall 2b including the car door 31 to the distance data acquisition start position of the distance sensor 3 in the X direction and the Y direction, which are horizontal directions of the car 2.
- the threshold from the side wall 2b to the distance data acquisition start position is a value provided so that the distance sensor 3 does not detect the side wall 2b as a load, and is determined assuming the position where the load is actually loaded. ing.
- These thresholds are determined in advance and stored in the maintenance DB 13 .
- the effective area setting unit 15 extracts threshold information in the X and Y directions from the security DB 13 .
- the effective area setting unit 15 extracts obstacles 30 existing inside the side wall 2b, such as handrails, from the drawing information accumulated in the maintenance DB 13 (step S12).
- the effective area setting unit 15 determines the effective dimension Xed in the X direction, the effective dimension Xed in the Y direction, and , and the effective area 40 are extracted (step S13).
- the effective area of the effective area 40 is also calculated from the values of the effective dimensions Xed and Yed. As described above, the effective area 40 and the effective area of the effective area 40 are extracted.
- FIG. 6 is a flow showing a method for extracting the data acquisition range of the distance sensor 3. As shown in FIG.
- the sensor information extraction unit 26 extracts the mounting position coordinates (Xs, Ys) of the distance sensor 3 on the XY plane from the information accumulated in the maintenance DB 13 (step S21).
- the mounting position coordinates of the distance sensor 3 are coordinates of the center position of the distance sensor 3 mounted on the ceiling 2c of the car 2 on the XY plane.
- the sensor information extraction unit 26 compares the mounting position coordinates (Xs, Ys) of the distance sensor 3 with the effective area 40, and uses the mounting coordinate position (Xs, Ys) of the distance sensor 3 as a reference.
- the data acquisition range of the distance data acquired in 3 is extracted (step S22).
- the mounting coordinate position (Xs, Ys) of the distance sensor 3 is (0, 0)
- the data acquisition range in the X direction is set to the range from -X1 (mm) to +X2 (mm) shown in FIG.
- the data acquisition range in the Y direction is set to the range from -Y1 (mm) to +Y2 (mm) shown in FIG.
- the sensor information extraction unit 26 extracts the mounting position height Zs in the Z direction of the distance sensor 3 from the information accumulated in the maintenance DB 13 (step S23).
- the mounting position height Zs of the distance sensor 3 in the Z direction is the height from the floor of the car 2 to the mounting position of the distance sensor 3 .
- the sensor information extraction unit 26 sets the threshold in the height direction in the Z direction from the information accumulated in the maintenance DB 13 .
- the threshold in the Z direction is a value provided for determining the effective dimension in the Z direction, and is provided on the ceiling 2c side and the floor 2a side in the Z direction.
- the threshold value set on the ceiling 2c side is a value provided so that the distance sensor 3 does not detect the lighting plate provided below the distance sensor 3 in the vertical direction.
- the threshold value set on the floor 2a side is a value provided to prevent the distance sensor 3 from detecting a load that does not affect the occupied area, such as a low platform installed so that passengers can climb it.
- the sensor information extraction unit 26 compares the mounting position coordinate Zs of the distance sensor 3 in the Z direction with the effective dimension Zed, and uses the mounting coordinate position Zs in the height direction of the distance sensor 3 as a reference, Extract the data acquisition range in .
- the mounting position coordinate Zs in the height direction of the distance sensor 3 is set to 0
- the data acquisition range in the Z direction of the distance sensor 3 is from MAX+Z1 (mm) to MIN+Z2 (mm) shown in FIG.
- the data acquisition range corresponding to the effective area 40 of the distance sensor 3 is extracted in the X, Y, and Z directions.
- the effective area 40 may be set by connecting to the maintenance DB 13 when the product is shipped, or may be set when the sensor is installed on site. Furthermore, by linking with the maintenance DB 13, even if the mounting position is corrected, the effective area can be automatically set by reflecting the design data of the shipping source.
- it is important to suppress the emission of beams and electromagnetic waves to unnecessary locations, and to set the area threshold value in consideration of reflection. Furthermore, it is important to set an effective area in advance and perform processing according to the area, instead of setting the area using data obtained from the sensor.
- FIG. 7 is a flow showing a setting method for obtaining distance data from the distance sensor 3 in the sensor information obtaining unit 24. As shown in FIG.
- the sensor information acquisition unit 24 determines whether information (data) regarding the setting of the distance sensor 3 has been successfully received from the sensor information extraction unit 26 (step S31).
- the data transmitted from the sensor information extraction unit 26 to the sensor information acquisition unit 24 are the data acquisition ranges in the X, Y, and Z directions and the resolution of the distance sensor 3 on the XY plane.
- step S31 if it is determined to be "NO", that is, if it is determined that the data has not been received normally, the initial value for the distance sensor 3 pre-stored in the distance sensor setting section 23 of the elevator control section 10 A setting value is extracted (step S32).
- the initial setting values are the initial value of the data acquisition range of the distance sensor 3 and the initial value of the resolution obtained in the same manner as in FIG.
- the sensor information acquisition unit 24 determines the data acquisition range of the distance data detected by the distance sensor 3 ( X direction, Y direction, Z direction).
- the data acquisition range of distance data is -X1 (mm) to +X2 (mm) in the X direction, -Y1 (mm) to +Y2 (mm) in the Y direction, and MIN + Z1 (mm) to MAX + Z2 (mm) in the Z direction. ).
- FIG. 8 shows a schematic diagram when the information acquired in steps S33 and S34 is reflected in the distance data detected by the distance sensor 3. As shown in FIG. In FIG. 8, parts corresponding to those in FIG. 3 are denoted by the same reference numerals, and redundant description is omitted.
- the data acquisition range of the distance sensor 3 acquired by the sensor information acquisition unit 24 is the same range as the effective area 40. Also, by setting the resolution, the distance data within the effective area 40 on the XY plane is divided into predetermined unit areas 41 . In this embodiment, the presence or absence of a load is determined for each unit area 41 divided in the effective area 40, and the occupied area is calculated. A method of calculating the occupied area will be described below.
- FIG. 9 is a flow showing the occupied area calculation method in the occupied area detection unit 25.
- the occupied area detection unit 25 After the distance sensor 3 acquires distance data at a predetermined timing, the occupied area detection unit 25 performs a "resolution loop" for determining the presence or absence of a load for each unit area 41 obtained by dividing the effective area 40 by the resolution of the distance sensor 3. is started (step S41). First, distance data in a predetermined unit area 41 is extracted from the distance data detected by the distance sensor 3 (step S42).
- step S43 it is determined whether or not the distance data in the unit area 41 is greater than the threshold.
- the threshold in step S43 is a value determined by the intensity of the reflected light detected by the distance sensor 3, for example. If it is smaller, it is determined that there is no load.
- FIG. 10 is a schematic diagram showing the state of distance data acquired by the distance sensor 3.
- the distance sensor 3 acquires data on the X-, Y-, and Z-axes. The presence or absence of a load is determined from the values detected in the X-axis and Y-axis directions, and the height of the load is detected from the values detected in the Z-axis direction.
- each unit area 41 is indicated by areas D1, D2 and D3.
- Each of the unit areas 41 in the areas D1, D2, and D3 is the unit area 41 determined to have a load in the process of step S43. Further, in this embodiment, it is possible to prevent erroneous detection by the distance sensor 3 by determining whether or not the acquired distance data is greater than a predetermined threshold value.
- step S43 When it is determined “YES” in step S43, that is, when it is determined that there is a load in the unit area 41, the occupancy value is incremented by 1 (step S45).
- the occupancy value is the sum of unit areas 41 determined to have a load. That is, in step S45, it is determined that there is a load and the number of unit areas 41 is added up.
- step S43 If it is determined "NO” in step S43, that is, if it is determined that there is no load in the unit area 41, the occupancy value is not accumulated.
- the processing of steps S42 to S44 is performed for all the unit areas 41 of the effective area 40, and the resolution loop ends when the determination of the presence or absence of the load in all the unit areas 41 of the effective area 40 is completed. (step S45).
- the occupied area detection unit 25 obtains the degree of occupancy from the integrated occupancy value (step S46).
- the occupied area is calculated from the accumulated occupancy value and the area of the unit area.
- the occupancy (%) is calculated by calculating the ratio of the occupied area to the effective area.
- the occupancy level is determined in step S46, but the procedure may be to determine the empty space.
- the empty space can be calculated by calculating the difference between the effective area and the occupied area.
- FIG. 11 is a flow showing an elevator allocation calculation processing method according to the present embodiment.
- a hall call request is a request generated by a passenger on the hall floor operating an operation unit (not shown) installed on the hall floor.
- step S51 If it is determined “NO” in step S51, that is, if it is determined that there is no hall call request, the processing in the allocation calculation processing unit 20 ends.
- step S if it is determined to be "YES” in step S, that is, if it is determined that there is a hall call request, the allocation calculation processing unit 20 performs allocation determination for each elevator car number "elevator number loop" is started (step S52).
- the allocation calculation processing unit 20 determines whether allocation is possible based on the occupancy value calculated by the occupied area detection unit 25 in the elevator 1 to be determined.
- the determination method in step S53 for example, when the elevator is out of order or under maintenance inspection, assignment is not possible and the determination is "NO".
- "NO" determination is made for elevators that are scheduled to pass through the required boarding floor and that are not expected to get off on the way and are determined to be full. Specifically, if the required boarding floor is the 3rd floor, and there is an elevator from the 1st floor whose destination floor has been registered to the 5th floor, it is not possible to get off at the 2nd floor, which is the middle floor. Not predicted.
- the occupancy determination may be performed by using the degree of occupancy, which will be described later, the occupancy determination based on the load, or using any of the determination means.
- step S53 If "NO” is determined in step S53, that is, if it is determined that assignment is not possible, the assignment determination for that elevator 1 is terminated, and the next elevator assignment determination loop is returned to.
- step S53 determines whether the allocation is possible. If it is determined to be "YES" in step S53, that is, if it is determined that the allocation is possible, the time (waiting time) until the elevator 1 reaches the hall floor where the hall call request is made ) is evaluated (step S54). In the waiting time evaluation in step S54, the priority of allocation of the elevator 1 is evaluated according to the waiting time.
- the assignment calculation processing unit 20 performs comprehensive evaluation based on the determination results calculated in the assignment determination loop, and determines the number of elevator 1 to be assigned (step S56).
- the elevator 1 evaluated to have the shortest waiting time and the highest priority in the waiting time evaluation is determined as the elevator to be assigned.
- the allocation calculation processing unit 20 transmits a response command to the hall call to the elevator control unit 10 corresponding to the elevator 1 of the allocation target car calculated in step S56 (step S57).
- the elevator 1 of the assigned car is controlled by the corresponding elevator control unit 10 so as to stop at the landing floor for which the landing call is requested.
- Fig. 12 is a flow of determining whether the assigned elevator is full and issuing a passage command if the service is unavailable.
- the allocation calculation processing unit 20 determines whether there is a hall call request for the next stop floor in the elevator 1 of the elevator car to be determined (step S61). If it is determined “NO” in step S61, that is, if it is determined that there is no hall call request for the next stop floor, there is no person or object boarding the elevator 1, so the degree of occupancy increases. There is nothing In this case, in the elevator 1, the process ends while maintaining the assigned evaluation value of "serviceable". In this case, a determination of "YES" is made in step S53 of FIG.
- step S61 determines that the load of the elevator 1 is "full”. " is satisfied (step S62).
- the load value determination used in step S62 is a determination made based on the load value detected by a load detection device (not shown) provided in the car 2 . If the load value detected in the car 2 is equal to or greater than the specified weight, it is determined that the car is "full”, and if it is smaller than the specified weight, it is determined that the car is "not full".
- step S62 if "NO” is determined, that is, if it is determined that the load value is "not full”, it is determined whether or not the occupancy of the elevator 1 is 80% or more (step S63).
- the occupancy ratio threshold is set to 80% has been described, but the occupancy ratio threshold is not limited to this, and the occupancy ratio threshold can be set arbitrarily, such as 90% or more, 70%, or the like. It is possible.
- step S63 if "NO” is determined, that is, if it is determined that the degree of occupancy is less than 80%, the assigned evaluation value of the elevator 1 is processed while maintaining "serviceable”. exit. In this case, a determination of "YES" is made in step S53 of FIG.
- step S62 determines “YES” in step S62, that is, if it is determined that "it is full”, and if it is determined “YES” in step S63, that is, the degree of occupancy is 80%. If there are more, the process proceeds to step S64.
- the allocation calculation processing unit 20 issues a hall call passage command to the elevator control unit 10 of the elevator 1 (step S64).
- the hall call passing command is a command to allow the elevator 1 to pass without stopping the hall call in step S51.
- step S53 of FIG. 11 the determination result is determined depending on whether the assignment evaluation is "assignable” or "assignable".
- the occupancy rate is a predetermined percentage (80% or more in this embodiment). ) If the above is the case, do not stop at the landing floor where the landing call is requested. As a result, it is possible to prevent useless stops based only on load value determination, and it is possible to stop the elevator 1 of a more appropriate car at the landing floor for which there is a hall call request.
- step S63 it is determined whether or not allocation is possible according to the degree of occupancy.
- the effective area setting unit 15 and the sensor information extraction unit 26 are provided in the host computer 14, but these configurations are provided in the elevator control unit 10 and the distance sensor control unit 19 side. It can be used as an example.
Landscapes
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
まず、本発明の一実施形態に係るエレベーターシステムについて、図面を参照して説明する。図1は、本発明の一実施形態(以下、本実施形態とする)に係るエレベーターシステム100の概略構成図である。なお、本実施形態のエレベーターシステム100は、本発明の占有面積検出システムを含むものであり、図1に示すエレベーターシステム100が占有面積検出システムであってもよく、また、図1に示すエレベーターシステム100の一部において、占有面積検出システムが構成されてもよい。
エレベーター1は、建物建造物内に形成された昇降路(図示を省略する)内を昇降動作する。エレベーター1は、人や荷物(以下、積載物)を乗せる乗りかご2と、主ロープ35と、釣合い錘33と、巻上機34と、を備える。巻上機34は、主ロープ35に巻き掛けられており、後述するエレベーター制御部10の昇降制御部21の制御の下、乗りかご2を昇降させる。また、乗りかご2は、主ロープ35を介して釣合い錘33と連結され、昇降路内を昇降する。
エレベーター制御部10は、例えば、昇降制御部21、戸開閉制御部22、及び、距離センサ設定部23を有する。昇降制御部21は、乗りかご2の運行を担う巻上機34(主機)等を制御する。上述したように、巻上機34には、一端に、人や物を乗せる乗りかご2が接続され、他端に釣合いおもり33が接続された主ロープ35が巻き掛けられている。本実施形態では、昇降制御部21の制御の下、巻上機34が動作し、乗りかご2が昇降路を昇降移動する。これにより、エレベーターシステム100では、乗りかご2に乗った人や物に対して、エレベーター1の昇降移動に係るサービスを提供する。
エレベーター運行管理部11は、割り当て演算処理部20を有する。割り当て演算処理部20は、後述する占有面積検出部25で算出された乗りかご2の占有度又は空きスペースの情報に基づいて、乗場呼び要求のあった乗場階に停止させるエレベーター1の号機を決定する。割り当て演算処理部20における割り当て方法については後で詳述する。
かご内カメラ制御部18は、エレベーター制御部10の制御の下、かご内カメラ4を駆動制御する。かご内カメラ4で取得された画像は、例えば、かご内カメラ制御部18に設けられた記憶部(図示を省略する)に記憶される。その他、かご内カメラ4で取得された画像は、通信路190、通信中継部17、通信網16、及びホストコンピューター14を介して、統計DB12又は/及び保全DB13に記憶される構成としてもよい。なお、かご内カメラ4における撮像は、常時行われるものであってもよく、また、積載物を感知した際に撮像するものであってよい。かご内カメラ4の撮像タイミングについては、種々の変更が可能である。
距離センサ制御部19は、センサ情報取得部24と、占有面積検出部25とを備える。センサ情報取得部24は、後述する距離センサ設定部23から送信されてくる所定のタイミング(以下、距離データ取得タイミング)で、距離センサ3で検知される距離データを取得する。この所定の距離データ取得タイミングとは、例えば、かごドア31が戸閉したタイミングや、乗りかご2が昇降動作を始めるタイミング等である。センサ情報取得部24は、エレベーター制御部10からその距離データ取得タイミングに関する信号を受信することで、距離データ取得タイミングに応じた距離情報を取得する。なお、図3の構成の場合、距離センサ3で取得された距離データについて通信路190を介して距離センサ制御部19にて、データ加工をする構成とするが、構成については、これに限らない。例えば、距離センサ制御部19の機能を距離センサ3に入れ込み、加工されたデータをエレベーター制御部10と通信路190を介してやり取りする構成でもよい。
ホストコンピューター14は、エレベーター1、かご内カメラ制御部18、距離センサ制御部19、エレベーター制御部10、及びエレベーター運行管理部11を繋ぐ通信路190と、通信中継部17及び通信網16を介して接続されるコンピューターである。ホストコンピューター14は、有効エリア設定部15と、センサ情報抽出部26とを備える。
保全DB13は、保全対象の全エレベーター1の識別番号、機種、構成機器の仕様に関する情報が蓄積されたデータベースである。本実施形態では、保全DB13に蓄積された情報のうち、乗りかご2の図面及びその3D情報と、乗りかご2に設置された距離センサ3の解像度、及び、距離センサ3の取付位置座標の情報とを用いる。
統計DB12は、保全対象の全エレベーター1における乗車人数に関する統計、停止階に関する統計、故障内容に関する統計等、様々な統計に関する情報を蓄積している。本実施形態では、占有面積検出部25で算出され占有面積に関する統計が随時更新されて記憶されている。
本実施形態における占有面積検出方法について説明する。まず、乗りかご2内における積載物の占有面積を検出するにあたって、乗りかご2に設置される距離センサ3の検出範囲(以下、データ取得範囲)を設定する。図4は、乗りかご2に設置される距離センサ3のデータ取得範囲の設定方法を示すフローである。
Claims (9)
- 乗りかご内における積載物の占有面積を検出する占有面積検出システムにおいて、
乗りかご内の天井側に設けられ、前記乗りかご内の積載物との距離を計測可能な距離センサと、
前記乗りかご内の有効エリアを算出する有効エリア設定部と、
前記距離センサの取付位置座標を抽出し、前記取付位置座標を基準として、前記有効エリアに対応した前記距離センサのデータ取得範囲を算出するセンサ情報抽出部と、
前記距離センサで検知された距離データと前記データ取得範囲とに基づいて、前記有効エリア内にある積載物の占有面積を算出する占有面積検出部と、
を備える占有面積検出システム。 - 前記センサ情報抽出部は、前記距離センサの解像度を抽出し、
前記占有面積検出部は、前記有効エリアを前記解像度で分割し、前記分割された単位領域毎に、前記単位領域の距離データが所定の閾値以上であるか否かを判定し、前記距離データが所定の閾値以上である単位領域の和を占有面積として算出する
請求項1に記載の占有面積検出システム。 - 前記占有面積検出部は、前記有効エリアの有効面積に対する前記占有面積の割合から、占有度を算出する
請求項2に記載の占有面積検出システム。 - 前記有効エリアは、前記乗りかごの側壁から所定の距離だけ離れた位置に設定されている
請求項1に記載の占有面積検出システム。 - 前記有効エリア設定部は、設計データが格納されているデータベースと接続され、前記データベースの前記設計データから取得される、前記乗りかご内の寸法、及び、前記距離センサの取付位置座標に基づいて有効エリアを設定する
請求項1に記載の占有面積検出システム。 - 前記有効エリア設定部は、設計データが格納されているデータベースと接続され、前記データベースの前記設計データから取得される、前記乗りかご内に設置される障がい物を有効エリアから除くことを特徴とする
請求項1に記載の占有面積検出システム。 - 乗りかご内における積載物の占有面積を検出する占有面積検出方法において、
乗りかご内に積載物が無い状態において、積載物を積載可能な有効エリアを算出し、
乗りかご内の天井側に設けられ、前記乗りかご内の積載物との距離を計測可能な距離センサの取付位置座標を抽出し、前記取付位置座標を基準として、前記有効エリアに対応した前記距離センサのデータ取得範囲を算出し、
前記距離センサで検知された距離データと、前記データ取得範囲とに基づいて、前記有効エリア内にある積載物の占有面積を算出する
占有面積検出方法。 - エレベーターの運行を制御するエレベーターシステムにおいて、
乗りかごを昇降移動させるエレベーターと、
前記乗りかご内の天井側に設けられ、前記乗りかご内の積載物との距離を計測可能な距離センサと、
前記乗りかご内に積載物が無い状態において、積載物を積載可能な有効エリアを算出する有効エリア設定部と、
前記距離センサの取付位置座標を抽出し、前記取付位置座標を基準として、前記有効エリアに対応した前記距離センサのデータ取得範囲を算出するセンサ情報抽出部と、
前記距離センサで検知された距離データと前記データ取得範囲とに基づいて、前記有効エリア内にある積載物の占有面積を算出する占有面積検出部と、
を備えるエレベーターシステム。 - 前記占有面積検出部で検出された検出結果に基づいて、割り当て可能と判定されたエレベーターを、乗場呼び要求のある乗場階に割り当てる割り当て演算処理部を有する
請求項8に記載のエレベーターシステム。
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