JP5894842B2 - Elevator system - Google Patents

Description

  The present invention relates to an elevator system in which operation of a car is controlled, and is particularly suitable for an apparatus that suppresses useless operation and saves energy.

  In order to reduce the installation area of elevators that do not directly contribute to the residential area through effective use of the residential area in the building, the number of elevators can be reduced to the minimum necessary, or the number of elevators operated can be reduced to save energy and save electricity. There is something to do. In this case, operation control reflecting the user's situation is required.

  Therefore, as a way to reflect whether or not the passenger is a weak person in the operation control as the user's situation, the weak person only approaches the elevator hall and detects the approaching speed of the passenger to the elevator hall and switches from normal operation to slow control operation Determine whether the person is an elderly person or a person with a physical disability, and from the normal operation only for a predetermined time to the slow control operation (extending the door opening time, reducing the acceleration / deceleration of the car, It is known to secure time), and is described in, for example, Patent Document 1.

  In addition, as to reflect the walking time as the user's situation in the operation control, when identifying a specific individual with the fingerprint detector at the entrance and automatically registering the hall call and destination call, if the distance to the hall is far, Since it travels without being able to get on, it is known that a call for a landing is automatically registered when a time required for a person to walk to the hall on the entrance floor elapses after a specific individual is identified.

  In addition, in order to drive efficiently for the arrival time of the scheduled passenger, a person is detected at the entrance of the building, the arrival time to the hall is calculated, and if there is a waiting elevator, the arrival time is within the predetermined time Then, it is known that the elevator is set in a standby state, which is described in Patent Document 3.

Japanese Patent Laid-Open No. 4-106089 JP 2002-326770 A JP 2000-26034 A

  In the above prior art, the one described in Patent Document 1 has a high possibility of excessively performing the slow control operation, which may increase the number of long waiting times or extremely increase the waiting time. . Moreover, since the slow control operation to the floor where the stop has already been decided is performed, the application range is limited.

  In addition, when the application described in Patent Document 2 is applied when there is another landing call, the elevator passes through the floor used by an individual who is determined to have a timing at which the elevator passes immediately after automatic registration. As a result, an extremely long waiting time may occur. Furthermore, since the identified person does not always use the elevator, useless calls are generated and the operation efficiency of the elevator is lowered.

  Further, the same is true of the one described in Patent Document 3, and the detected person does not always use the elevator, and if it is applied when there is another landing call, an extremely long waiting time occurs.

  The object of the present invention is to solve the above-mentioned problems of the prior art, prevent the user from generating a long waiting time and prevent the waiting time from becoming extremely long, reduce unnecessary traveling, and save The purpose is to use electric power.

  In order to achieve the above object, the present invention provides an elevator system that controls a car that operates a plurality of floors of a building, and a user detection device that is installed at a predetermined distance from a landing and detects a user; A car position sensor that detects a height position of the car, and when the user is detected by the user detection device, the car position sensor detects the predetermined distance and the car position sensor at the time of detection. The traveling speed of the car is determined based on the height position of the car.

  According to the present invention, when the user detection device is installed at a position away from the landing by a predetermined distance, and the user is detected, the predetermined distance and the height position of the car at the time of detection are determined. Since the traveling speed of the car is determined, it can be avoided that the car passes the user. Therefore, it is possible to prevent the occurrence of many long wait times or the waiting time from becoming extremely long, reduce unnecessary traveling, and save power.

1 is an overall block diagram showing an embodiment according to the present invention. The graph which shows the control action in one Embodiment by this invention. The graph which shows the control action in one Embodiment by this invention by 3 axes | shafts. The graph which shows the control action with respect to the cage | basket | car speed in one Embodiment by this invention. The block diagram which shows the control action of one Embodiment by this invention. The graph which shows the cage | basket | car speed at the time of change of one embodiment by this invention. The block diagram of the elevator control apparatus in one embodiment. Schematic which shows the installation condition of the user detection apparatus in one Embodiment. The block diagram which shows the implementation determination means of the cage | basket | car speed change in one embodiment. The graph which shows the control operation | movement of the cage | basket | car speed change in one Embodiment. The block diagram which shows the implementation determination means of the cage speed change in other embodiment. The table | surface which shows the user destination direction data in one Embodiment.

  Trends in the building include the effective use of the living area in the building and the reduction of the elevator installation area that does not directly contribute to the residential area. There is a tendency to reduce the number of units in operation. In this case, long waiting is likely to occur in a situation where the elevators in the building are frequently used. Therefore, by detecting the user in advance and changing the speed of the car according to the car position at the time of detection and the position of the user so as to be in time without passing through the floor of the user, the user gets into the car. This makes it possible to avoid long waits. Hereinafter, an embodiment will be described in detail with reference to the drawings.

  FIG. 1 is an overall configuration diagram showing an elevator system, and the movement of an elevator car 010 is controlled by an elevator control device 100. The car 010 moves through a hoistway formed in the building between a plurality of floors, and is connected to a weight for balancing the car 010 called a counterweight 011 via a rope. The car 010 is moved by driving the sheave 008 by the motor 006. Driving power is supplied to the motor 006 by the inverter device 005. Inverter device 005 outputs electric power for controlling motor 006 in accordance with a car position control command from elevator control device 100.

  In addition, a pulse generator such as an encoder is attached to the motor 006, and the elevator control device 100 counts the pulses generated by the rotation of the motor 006, so that the speed of the motor 006, the moving direction of the hoistway of the car 010, the position Calculate the distance traveled. A car position sensor is attached to the car 010, and a detection plate 004 detected by the car position sensor is attached to each floor in the hoistway. The car position sensor detects the detection board 004 as the car 010 moves. The height position of the car 010 is detected by the encoder signal at that time.

  The elevator hall is provided with a hall call button for registering a call, and a user detection device 001 for detecting a user is installed at a position away from the hall by a predetermined distance. The user detection device 001 detects a user before arriving at the landing using a camera, an infrared sensor, or the like. The user detection device 001 is usually installed on a plurality of floors and assigned an ID number.

  Therefore, the elevator control device 100 refers to the ID number indicating which floor the user detection device 001 is installed on and the data table storing the distance to the landing for each ID number, and the ID of the user detection device 001. A predetermined distance corresponding to the number can be obtained. In addition, the elevator control device 100 can obtain the height position of the car by the car position sensor when the user is detected by the user detection device 001. In FIG. 1, the user detection device 001 is installed on the same floor as the landing, but may be installed on a different floor from the landing if a predetermined distance from the landing is predetermined. .

  FIG. 2 shows the control operation of the elevator system. The vertical axis (A01) is the car position in the height direction on the hoistway, and the horizontal axis (A02) is the time chart on the car time axis. Represents the control operation. Each line on the graph represents the transition of the car position on the time axis, and line A03 is a trajectory of the car running at the rated speed (the slope of the line corresponds to the car speed) to detect the user. Then, the car speed after the time when the user is detected is changed as shown by line A07 according to the distance between the car position (A05) at the time of detection (A04) and the floor (N floor) where the user is detected. The

  When the detected user is at a position away from the elevator landing (for example, a position away from 10 to 50 m), the car speed is reduced. Therefore, at time A08 when the user arrives at the landing and registers the landing call (presses the landing button), the user is at a car position (A10 position before the call response lower limit position A06) that can answer the landing call. It becomes possible to get on the car (at the time of A11).

  When the car position at the time of user detection is point A12, the car speed is changed to a car speed as shown by line A13 (running at the rated speed before the change). In this case (line A13), since the distance (A14) from the user detection floor is short, the changed speed is lower than the case of line A07 (the inclination is small). As a result, when the user arrives at the landing (same as when the call is registered), the call can be answered at A08 as in the case of line A07. In other words, according to the distance (A14) between the car position at the time of user detection (A04) and the floor where the user is detected, the car speed is reduced as the distance is shorter, so that the timing is just right for the user's call. It is possible to reach a car position where a response can be made, and it is possible to place a user who has been detected in advance reliably and without wasting time.

  A dotted line A15 is a case where the vehicle travels normally without changing the speed at the car position A12 (running at the rated speed). In this case, since the car reaches the user's detection floor before the detected user arrives at the landing (A08) (A16), the car passes without being able to answer the call. . As a result, the user has to wait for the elevator to return next time, and waits for a long time.

  Considering the impact of changing the speed range on the users of the entire building, reducing the speed too much is not desirable because it increases the waiting time, and the range from the rated speed to half the rated speed drastically reduces the operating efficiency. It is desirable in that it does not. An example in which the rated speed is changed to 1/2 is a case where the car speed is changed to the line A18 at the car position A17, and the limit at which the car position A17 can detect the user at a predetermined position and make the car respond. Position (limit position in this example). The limit car position that can respond to the user at the rated speed that does not change the speed (same as normal operation) is the position of point A19, and the car operation in this case is as shown by line A20. When the car position is within the range from point A19 to point A17 at the time of user detection (line A04), the car speed is flexibly changed from the rated speed to half of the rated speed according to the car position. It becomes possible to carry the user who did.

  The change of the car speed requires a longer time A23 from the time of detection of the user to arrival at the landing than the time A21 until the arrival point (A22) of the car to the call answering limit position (lower limit position) on the user detection floor. Adjust the speed according to the car position. That is, when the user arrives at the landing and registers a call, the car may be controlled so as to remain in a position where it can answer the call. The elevator platform is a space area in the vicinity where the elevator landing door and the landing call button are installed. The arrival point of the landing is where the user arrives at the landing and registers the landing call (press the landing button) It is the point of the flow when determined by the action.

  FIG. 3 shows the control operation of the elevator system. The axis (A01) represents the position of the car on the hoistway, the axis (A02) represents time (time), and the axis (B01) represents the position of the elevator user. The control operation of the car is represented on the axis graph.

  In the example of FIG. 2, the example in which the car speed is changed according to the car position at the time of user detection (or the distance between the car position and the detection floor) is shown, but in FIG. 3, the user detection position (or user detection position) is shown. An example of changing the car speed according to the distance between the car and the landing) will be described.

  A case where a user who has not arrived at the landing is detected at the detection position A (B02) will be described. The detection time is the detection time B03. Since this user walks toward the elevator platform, the position moves along the line B04 with time, arrives at the elevator platform at the point B05, and registers a landing call (downward) .

  On the other hand, the car is descending at the rated speed (line B06), and the position of the user detection time point (B03) is point B07. In normal driving, the car continues to run at the rated speed, so the car moves along the dotted line B08, and at the point B09 when it reaches the floor where the user is, the user has not yet arrived and no call is registered. Therefore, since the point B09 is before the point B05, the car passes without being able to respond. As a result, the user has to wait for the car to go around and return.

  The car speed (slope) is changed as shown in line B10 according to the position of the user and the car position at the time of detection, and the arrival time of the car at the user detection floor is set to the time point B11. You can get in. A case where the user before arriving at the landing is detected at the detection position B (B12) farther than the above example will be described. The detection time point is B03, and the vehicle arrives at the landing point at point B14 by proceeding toward the landing point with time as shown by line B13. If the car position at the time of user detection is B07, in this case, the distance between the user detection position and the landing (distance between point B12 and point B03) becomes longer, and the landing arrival time point B14 is later than B05. Further, the car is further reduced in speed so as to operate as a line B15 (the slope of the line is gentler) so that the car arrives after the user arrives (the car arrives at point B16).

  FIG. 4 is a graph showing the control operation of the elevator system described with reference to FIGS. 2 and 3, in which the axis A01 represents the car position on the hoistway and the axis C01 represents the car speed.

  Line C02 operates the car at the rated speed. The user is detected in advance at the car position A (point C03), and the car is decelerated as shown by the line C04, and finally the steady speed state is reached at the speed of the line C05. When a user is detected at the car position B (point C06), the car is decelerated as indicated by a line C07 and becomes a steady speed at the speed of the line C08.

  The car speed at the time of change described in FIGS. 2 and 3 indicates the steady speed (speed in the steady operation state) indicated by the lines C05 and C08. The steady speed changes according to the car position (positions A and B) at the time of user detection. As described with reference to FIG. 2, the steady speed becomes smaller as the car position is closer to the user detection floor.

  After the speed change to the steady speed C08, when the detected user arrives at the elevator landing and registers a landing call, the car starts to decelerate in response to the user's call (operation line on line C09), Stop at the user detection floor (point C10). Then, after the user gets on the vehicle, he leaves the floor and then returns to normal operation (line C11) and operates at the rated speed (line C12).

  There is a possibility that the user detected in advance does not use the elevator (for example, when the user moves to another place other than the elevator landing), in which case the user does not register the landing call. In this case, the elevator side lowers the traveling speed of the car on the user detection floor and then detects the floor until the car arrives at the floor (N floor) where the user detection device is installed. It is determined that there is no call registration on the (N floor) (point C13), and after passing through the detection floor, the elevator is returned to normal operation (rated speed) like the operation lines C14 and C15. That is, after the car speed is changed, the control is changed depending on the use situation of the elevator of the user by switching the stop or the passage depending on the presence or absence of the landing call on the user detection floor. Therefore, useless call stop can be avoided, the influence of speed change (speed reduction operation) can be minimized, and a decrease in operation efficiency can also be avoided.

  FIG. 5 is a block diagram showing the control of the elevator system, at a position away from the landing by a predetermined distance before the elevator user D01 on the Nth floor arrives at the landing (for example, 5 to 40 seconds before). The situation detected by the installed user detection device 001 (camera, infrared sensor, etc.) is shown. The distance D03 between the user's detection position and the landing (call registration button D02) is X, and the user's walking speed is Vp. The walking speed is about 1.0 to 2.0 m / sec, and is preferably a value lower than the average, for example, 1.2 m / sec.

  The distance D05 between the position of the car 010 on the hoistway D04 at the time of detection and the user detection floor (more precisely, the lower limit position of the car that can respond to the landing call to the detection floor as shown in the figure) is Y, The speed is Vc (the car is traveling downward).

The time Tp from when the user arrives at the landing and registers the call is given by equation (1).
Tp = X / Vp (1)

The time Tc for the car to reach the limit position on the user detection floor where the call can be answered is as shown in Equation (2).
Tc = Y / Vc (2)

The conditions that enable the user to answer the call are as follows (the condition that the user arrives at the floor after the call registration).
Tp ≦ Tc (3)

The boundary condition is Tp = Tc (4). From the equations (1), (2), and (4), the car speed Vc should satisfy the following relationship.
Vc = Vp · (Y / X) (5)

  When the walking speed Vp of the passenger is constant from the equation (5), the car changing speed Vc according to the car position at the time of user detection and the user position is proportional to the distance Y between the car position and the detection floor, What is necessary is just to set so that it may be inversely proportional to the distance X of a person's position and a boarding point. That is, as the distance Y between the car position and the detection floor is longer, the car speed Vc at the time of change may be larger (the change from the rated speed may be smaller), and the distance X between the user position and the landing is larger. The car speed Vc at the time of change needs to be reduced (the change from the rated speed needs to be increased).

Since X is a constant if the detection position is constant, a proportional relationship is established between Vc and Y as in equation (6), and if the car position and the detection floor are the same, Y is a constant, so Thus, Vc and X are in an inversely proportional relationship.
Vc = (Vp / X) · Y: Vp / X is a constant (6)
Vc = (Vp · Y) / X: Vp · Y is a constant (7)

  By changing to the equation (5), the car change speed depends on the distance (Y) between the car position at the time of user detection and the user detection floor and the distance (X) between the user detection position and the landing. As a result, the user can be placed on the car at the just-fit timing regardless of the car position or the user detection position.

The equation (5) can be rewritten as the relational expression for the distance Y between the car position at the time of user detection and the user detection floor.
Y = Vc · X / Vp (8)

  Here, if X = 20 m, Vp = 1.5 m / s, and the car speed at the time of change is Vc = 0.5 m / s (1/2 of the rated speed of standard elevator 1.0 m / s), Y = 6 0.7m = about 1.5 floors. Since the above condition is close to the condition that Y is minimum (Vc is larger in the case of a high-speed elevator), the distance Y between the car position at the time of user detection and the user detection floor is preferably 1 floor or more. .

  FIG. 6 is a graph of the relational expression (6) representing the relation between the car speed Vc at the time of change, the car position at the time of user detection, and the distance Y between the user detection floors. The vertical axis C01 represents the car speed Vc, the horizontal axis E01 represents the distance Y between the car position at the time of user detection and the user detection floor, and the lines E02, E03, and E04 represent the user detection position and the landing point, respectively. Represents the relationship between the distance Y and the car change speed Vc when the distance X is changed to X1, X2, and X3 (X1 <X2 <X3).

  If the user detection position is the same, X is the same, and Y and Vc are in a proportional relationship as shown by line E03. That is, if the user detection position is the same, the car change speed is determined in proportion to the distance between the car position at the time of detection and the detection floor. However, the change range of the car speed is within the range of the rated speed Vcn (dotted line E06) and the lower limit value of the changed speed, in this case, (1/2) Vcn (dotted line E07) which is ½ of the rated speed.

  For example, in the case of the characteristics of the line E02 (when X = X1), the change speed decreases as the distance Y from the rated speed point E08 to the car position decreases, and is reduced to ½ of the rated speed. That is, when the user detection position is the same, it is necessary to increase the time until the car arrives as the distance Y is shorter, and the car speed is further reduced. Also, if the change speed is lowered too much, it will take a long elevator time just to put the user on it and lead to a decrease in operation efficiency for other users. 1/2.

  When the user detection position is different (distance X is different) and the car position at the time of user detection is the same (distance Y is the same), the car change speed Vc becomes smaller as the distance X becomes larger as in equation (7). To do. This is shown in the magnitude of the car change speed Vc at the point Z3 (X is X2) and the point Z4 (X is X3) of the symbol E10. This is because the longer the distance X, the more time it takes for the car to arrive, and the lower the car speed.

FIG. 7 shows the control blocks for the elevator system.
The user detection device 001 before arrival at the landing detects a user before arrival at the landing. The user detection device 001 is preferably a camera or infrared sensor installed in the ceiling of a living room or a corridor, an authentication tag that can be detected wirelessly, person authentication at a security door, and the like. Detection information of the user detection device is input to the elevator control device 100, and a distance (X) from the detection position of the user to the landing is calculated by the distance calculation means 101. The distance calculation refers to the distance data for each detection means stored in the distance data storage means 102 between the user detection device and the landing.

  The user landing arrival time calculation means 103 calculates the user landing arrival time (Tp) from the distance (X) from the user detection position to the landing and the walking speed data (Vp) of the user walking speed data storage means 104. ) Is calculated as in equation (1).

  The traveling of the car is performed by a mechanism of a rope 009, a sheave 008, a motor shaft 007, and a motor 006 by moving the car 010 and the counterweight 011. An elevator control device detects signals from a car position sensor 003 that detects the amount of rotation of the motor, a motor encoder 002 that detects the rotational direction, and a car position sensor 003 such as a photoelectric sensor and a detection plate 004, for example. The vehicle position and traveling direction calculation means 105 calculates the value.

  The destination direction determination means 106 of the user determines from the information of the detection floor of the user detection device 001. At this time, the destination direction data of the user destination direction data storage means (detailed in FIG. 11) for each floor is used. Car arrival time (Tc ') and travel distance (Y) from the car position and travel direction to the user detection floor using the car position and travel direction data, the user detection floor and the destination direction data Is calculated by the car arrival time and distance calculation means 108. As the car arrival time (Tc ′), the arrival time in the normal travel before the speed change is calculated. In calculating the arrival time, it is calculated including the stop time by using the call hall information of the car and the call stop information of the car call data storage means 109.

  The car speed change execution judging means A110 compares the user arrival time (Tp) with the car arrival time (Tc ') before the car speed change, and if Tp> Tc', the car is the user. It is determined that the car speed change is to be executed first (the determination of speed change is not determined only by this determination). Otherwise (Tp <Tc ′), there is no need to change the speed of the car, so the speed is not changed.

  As another example of the car speed change execution determination means A110, instead of the above-described car passage determination, a subsequent predicted waiting time is calculated from the traveling time of one round of the car and the stop time of the stop floor, and waiting for the prediction. It may be determined that the speed change is performed when the time exceeds a predetermined value. As the predetermined value, for example, 60 seconds, which is a reference for long waiting, can be considered. As yet another example, the number of users may be used.

In the car speed calculation means 111, when the car speed change execution determination means A110 determines that the speed change is executed, the user arrival time (Tp) of the user, the car position at the time of user detection, and the travel distance to the user detection floor The car speed Vc at the time of change is calculated from (Y) by the formula (9).
Vc = Y / Tp (9)

  Here, equation (9) can be obtained from the relationship between equations (2) and (4). In practice, the relationship Vc ≦ Y / Tp may be satisfied. Expression (9) is an expression for calculating a speed required for the car to travel the distance Y (the distance from the car position at the time of detection to the user's floor) by the time when the user arrives at the landing. This is to calculate the speed for getting on the car in response to the call at the right time for the user. Further, since Tp is obtained from the equation (1), it is obtained according to the basic equation of the change speed shown in the equation (5) after all.

  Car speed change execution determination means B112 determines whether or not the calculated car speed at the time of the change is within the allowable range. If it is within the allowable range, it is determined that the speed change has been executed. The allowable range of the car speed change refers to the data of the car speed allowable range data storage means 113. The car speed change execution determining means B112 may determine the speed change in consideration of the influence on the boarding time of passengers in the car or the waiting time of other landing calls in addition to the allowable range of the speed change. good.

  The car speed control means 114 executes the car speed control so that the calculated car change speed is obtained when it is determined that the car speed change can be executed from the result of the car speed change execution judging means B112. The car speed control means 114 controls the inverter 005 to control the rotation speed of the motor 006 while detecting the signal of the motor encoder 002 so as to follow the calculated change speed, thereby controlling the speed of the car 010.

The car speed change release determination means 115 uses the car position data, the data of the user detection floor, and the presence / absence data of the landing call on that floor to call the landing when the car reaches the position of the user detection floor or in the vicinity thereof. Is registered, and if not, the car passes through the floor and the car speed change control is canceled. As a result, as described in FIG. 3, the car speed returns to the rated speed after passing through the floor.
In addition, although the said description made the single elevator an example, it is desirable to apply also to the group management elevator system which manages a plurality of elevators as a group.

  FIG. 8 shows a user detection device 001A. In the case of an office room or a living room space F01, an infrared sensor installed on the ceiling or wall is projected to use reflection from the human body, or an image sensor such as a camera uses an image from an image. The presence or absence of the user is detected by determining the human body or by holding the wireless ID card and identifying the wireless ID card with an identification device. Similar user detection devices 001B and 001C may be installed in the corridor F02 from the office or living room to the elevator platform (or call button D02). Alternatively, an ID authentication device 001D may be installed in the security door F03 that goes out from the office to the corridor, and may be detected by a personal ID card held by the user. At least one of the above user detection devices 001A, 001B, 001C, and 001D may be provided. Each of the user detection devices 001A, 001B, 001C, and 001D is connected to the elevator control device 100 via the communication line F04, and the detection information indicating the user and the information of the detection means indicating the detection floor and the detection position are the elevator control device. 100.

  The distance data table 102 in FIG. 7 stores user detection device data for each floor. For example, in the case of the Nth floor in FIG. 8, the distance from the landing to the user detection device 001A is L ( As the value of (1, N), the distance data for the user detection device 001D is stored as the value of L (2, N) as the distance to the landing. If multiple user detection devices are installed on each floor, the elevator users who will be arriving at the platform in the entire building can be detected in advance by connecting the signal of the user detection device to the elevator control means via a communication line. By controlling the speed of the car according to the arrival of the user at the landing, it is possible to realize a more detailed service for the users of the entire building.

  FIG. 9 shows an example of determination based on the number of users with respect to what the car speed change execution determination means A110 of FIG.

  The comparison / determination means 1101 between the user arrival time Tp and the car arrival time Tc ′ compares both, and determines that the car passes the user's floor first if Tp> Tc ′. This part is the same as FIG. In the example of FIG. 8, in addition to this, the total number of users is detected by the total number of users calculation means 1102 detected from the user detection signal, and the total number of users is calculated by the number of users threshold determination means 1103. Determine whether the threshold is exceeded. If the car passes (Tp> Tc ′) and the total number of elevator users is equal to or greater than the threshold value, the overall determination unit 1104 determines that the car speed change is to be performed.

  As a result, the execution of the car speed determination is determined by adding the number of users, so that even if the user is highly uncertain about whether to use the elevator, a more appropriate determination can be made. For example, even if there is a high risk of speed change for one user, there is a high possibility that one or more of them will use an elevator, so the risk of speed change is reduced and the speed is more reliably determined. It becomes a judgment of change.

  FIG. 10 shows an example in which it is determined in consideration of the influence on the boarding time of passengers in the car and the waiting time for landing calls on other floors when the execution of the car speed change is determined. When user A (G01) before arriving at the landing on the Nth floor is detected in advance by the user detection device 001, the car 010 is traveling downward in the position (n + 5th floor) in the figure. Passenger B (G02) is already in the car 010, and the destination floor (car calling floor) G03 is the N-4th floor. In addition, it is assumed that there is already a waiting customer C (G04) on the N-2 floor and is waiting for a landing call (G05) registered.

  On the graph where the vertical axis A01 is the car position on the hoistway and the horizontal axis A02 is the time when the car operation line is not changed for the user A (G01) on the N floor The representation is the left graph of FIG. When the car speed change is not performed, a car operation line such as a dotted line G06 is obtained. When the car speed change is carried out, it becomes a car operation line like the line G07, and an increase in time G08 due to the speed change occurs, which is an increase in the waiting time G09 of the waiting customer C (G04), and the passenger B in the car (G02) Will be added as an increase in boarding time G10. Therefore, when carrying out the speed change, it is more desirable to make a determination in consideration of the passenger's boarding time in the car and the waiting time of waiting passengers on floors other than the user detection floor.

  Since the waiting time is more psychological stress than the boarding time, the speed is changed only when there is no landing call on a floor other than the user detection floor. For example, in the example of FIG. 10, since there is a waiting customer C (G04) on the N-2 floor, it is determined not to be implemented. Conversely, if there is no waiting customer C, the car speed change is carried out even if the passenger B is in the car. This is effective for a building with many elevator users who place importance on waiting time (generally this tendency is large).

  Further, as shown in the graph on the left side of FIG. 10, paying attention to the fact that the time increase G08 due to the speed change is added to the waiting time of other waiting passengers, passengers, and boarding time, and if this time increase is less than a predetermined value It is determined that the speed change is performed. As the predetermined value, for example, if it is 20 seconds or less, it is preferable to set it to 20 seconds because the psychological stress given to other waiting customers and passengers is small. The time increase includes a time increase compared to when the speed change is not performed and a case where the speed change is performed, a time increase compared to a case where the speed change is performed and the case where the speed is changed. Thereby, it becomes possible to deal with the influence on other waiting customers and passengers more quantitatively.

  FIG. 11 shows an example of an execution determination method for changing the car speed in consideration of the passenger boarding time in the car and the influence on the waiting time for a landing call on another floor. The effect of time increase due to car speed change is judged by comprehensive evaluation of boarding time and waiting time. It is assumed that the car speed change execution determination means B112 in FIG. However, other than the car speed change execution determination means B112, for example, the car speed change execution determination means B112 may be used. The car change speed allowable condition determining means 1121 compares the car speed data after the change calculated by the car speed calculating means 111 with the car speed allowable range, and determines whether or not it is within the allowable range. This determination means is the same as that already described in FIG.

  In addition to the above, in the execution determination of FIG. 11, the boarding time for the passengers in the car at the time of changing the car speed is calculated by the boarding time calculating means 1122. Calculated from car call and boarding time data, car mileage data, and car change speed data. The calculated boarding time when the car speed is changed is compared with a predetermined allowable reference value by the boarding time allowable condition determining means 1123 to determine whether or not it is within an allowable range. As for the boarding time, 30 seconds to 50 seconds is a practical allowable range, so the allowable reference value is also preferably set to 30 seconds to 50 seconds.

  The waiting time calculation means 1124 for landing waiters on floors other than the user detection floor when changing the car speed calculates the waiting time for landing waiters on floors other than the user detection floor when changing the car speed. Calculate using landing call and waiting time data, car mileage data, and car change speed data. The waiting time allowable condition determining means 1125 compares the calculated waiting time at the time of changing the car speed with a predetermined allowable reference value to determine whether or not it is within the allowable range. Regarding the waiting time, the allowable range is 20 seconds to 30 seconds, and the allowable reference value is preferably set to 20 seconds to 30 seconds.

  Based on the permissible condition determination results of the car change speed, the boarding time, and the waiting time, the comprehensive determination unit 1126 determines that the speed change is performed when all the allowable conditions are satisfied. This determination result signal is output to the car speed control means 114. By changing the car speed according to the waiting time for boarding calls on the floors other than the user detection floor and the boarding time of passengers in the car, a more appropriate car that takes into account the waiting time and boarding time for the entire building. Operation control is possible. In addition, the change speed may be changed according to the length of the waiting time for the hall call on the floor other than the user detection floor and the length of the passenger's boarding time in the car, or the lower limit value of the change speed may be changed. Can improve the operation efficiency.

  FIG. 12 shows an example of the user destination direction data storage means 107 by floor explained in FIG. As shown in FIG. 12, for each floor of the building, the generation ratio in which the destination direction is upward and the downward direction is stored. This occurrence ratio is data obtained by statistically calculating the actual occurrence ratio of each floor in the building. Based on this generation ratio, it is determined as the destination direction of the user who has detected the higher ratio. However, if the ratio is close or similar, consider the risk of an error and do not change the speed because the determination is impossible. As a result, it becomes possible to more accurately determine the destination direction of the user and more reliably carry out the car speed change control for the user.

  As described above, by detecting the user arriving at the landing before the car arrives at the landing and determining the speed of the car, the passage of the car can be avoided and the use of the elevator can be avoided. Long wait occurrence in many situations can be reduced. Moreover, since the occurrence of useless call stops can be suppressed, operation efficiency can be improved. In other words, it is possible to reduce the amount of power consumption and carbon dioxide emissions that cause global warming because both long-waiting and avoidance of lowering operating efficiency can be achieved in a situation where the use of elevators is high, and unnecessary travel of the elevator can be reduced. Can contribute to reduction.

001, 001A, 001B, 001C, 001D User detection device 002 Encoder 003 Car position sensor 004 Detection plate 005 Inverter device 006 Motor 008 Sheave 009 Rope 010 Ride car 011 Counterweight 100 Elevator control device 101 Distance calculation means 103 Arrival time calculation Means 105 Car position and travel direction calculation means 106 Destination direction determination means 108 Car arrival time and distance calculation means 110 Car speed change execution judgment means A
112 Car speed change execution determination means B
114 Car speed control means 115 Car speed change release determination means

Claims (14)

In an elevator system that controls a car that operates on multiple floors of a building,
A user detection device installed on a plurality of floors that are installed at a predetermined distance from the landing and detects a user, an ID number indicating which floor the user detection device is installed on, and the floor A data table storing the predetermined distance for each ID number;
A car position sensor for detecting a height position of the car,
When the user is detected by the user detection device,
An elevator system that determines a traveling speed of the car based on the predetermined distance and a height position of the car detected by the car position sensor at the time of detection ,
Before the car arrives at the landing on the floor where the user detection device is installed
If the user is detected by the user detection device at the time of
Corresponding to the ID number of the user detection device obtained by referring to the data table
The predetermined distance and the height of the car detected by the car position sensor at the time of detection.
The travel speed of the car after the point in time when the user is detected
An elevator system characterized by that.   The elevator system according to claim 1, wherein the height of the car at the time of detection.
An elevator system characterized in that the traveling speed of the car is lowered as the position is shorter.   The elevator system according to claim 1, wherein the height of the car at the time of detection.
An elevator system characterized in that the traveling speed of the car is determined in proportion to the position.
Mu.   The elevator system according to claim 1, wherein the traveling speed of the car is a rated speed.
An elevator system characterized in that it is determined as 1/2 of the rated speed.   The elevator system according to claim 1, wherein the longer the predetermined distance, the more the car.
An elevator system characterized by lowering the running speed of the vehicle.   The elevator system according to claim 1, wherein the ride is in inverse proportion to the predetermined distance.
An elevator system that determines the running speed of your car.   The elevator system according to claim 1, wherein the user is detected and the car is
After the traveling speed is reduced, the car will arrive at the floor where the user detection device is installed.
If there is a landing call on the floor during the period, the car stops at the floor,
When there is no landing call, the elevator passes through the floor.
Data system.   The elevator system according to claim 7, wherein the platform is not called without the landing call.
When passing through the floor, the car is returned to the rated speed after passing the floor.
A featured elevator system.   The elevator system according to claim 1, wherein when a user is detected, the predetermined distance.
In the floor where the user detection device is installed by the separation X and the walking speed Vp of the user
Time Tp from arrival at the landing to registering a call,
  The rated speed Vc of the car and the car position sensor when the user is detected
And the height position Y of the car detected by the
The car arrival time (Tc ′) arriving at the platform on the installed floor is obtained,
  If Tp is greater than Tc ′, the car will run after the user is detected.
Reduce the line speed,
  If Tp is smaller than Tc ', do not change the traveling speed of the car.
A featured elevator system.   10. The elevator system according to claim 9, wherein the car is the user detection device.
The arrival time (Tc ′) of the car arriving at the landing on the floor where
It is characterized in that it is calculated including the stop call based on the stop call information that is handled by the stop
Elevator system.   In the elevator system according to claim 1, when a user is detected, a subsequent prediction is made.
The waiting time is calculated from the travel time of one round of the car and the stop time of the stop floor, and the prediction
When the waiting time is longer than 60 seconds, which is the standard for long waiting, after the time when the user is detected
An elevator system characterized by lowering the traveling speed of the car.   The elevator system according to claim 1, wherein when a user is detected, the predetermined distance.
In the floor where the user detection device is installed by the separation X and the walking speed Vp of the user
Time Tp from arrival at the landing to registering a call,
  The rated speed Vc of the car and the car position sensor when the user is detected
And the height position Y of the car detected by the
The car arrival time (Tc ′) arriving at the platform on the installed floor is obtained,
  If Tp is greater than Tc ′ and the total number of detected users is greater than or equal to the threshold,
An elevator that lowers the traveling speed of the car after the user is detected.
Data system.   The elevator system of Claim 1 WHEREIN: The floor in which the said user detection apparatus was installed
If there is a landing call at a place other than, the traveling speed of the car after the time when the user is detected
An elevator system that does not change the degree.   The elevator system according to claim 1, wherein when a user is detected, the predetermined distance.
In the floor where the user detection device is installed by the separation X and the walking speed Vp of the user
Time Tp from arrival at the landing to registering a call,
  The rated speed Vc of the car and the car position sensor when the user is detected
And the height position Y of the car detected by the
The car arrival time (Tc ′) arriving at the platform on the installed floor is obtained,
  If Tp is greater than Tc ′, the car will run after the user is detected.
Decrease the travel speed and call the ride time for passengers in the car at the determined travel speed
And travel time data, car mileage data, and the travel time is less than the allowable reference value.
In the following case, the traveling speed of the car after the point in time when the user is detected is reduced.
Elevator system.