JPH0361273A - Elevator boarding/alighting load detection device - Google Patents

Abstract

PURPOSE:To eliminate errors in passenger load detection caused by outriding and the like by providing a getting on load output means and a getting-off load output means for outputting the getting-on load and getting-off load respectively from the sum of the output of an in-cage load time variation detecting means, an in-cage load time-increased quantity detecting-recording means and an in-cage load time-decreased quantity detecting-recording means. CONSTITUTION:The subject device is provided with an in-cage load time increased quantity detecting recording means 21 for detecting and recording successively the by-time change of the in-cage increased quantity from the output value of an in-cage load time variation detecting means 18. The by-time change of the in-cage load decreased quantity is detected and recorded by an in-cage load time-decreased quantity detecting-recording means 22 also from the output value of the in-cage load time variation detecting means 21. The sum of the in-cage load increased quantity recorded at the in-cage load time-increased quantity detecting recording means 21 is then outputted as getting on load from a cage load output means 23. The sum of the in-cage load decreased quantity recorded at the in-cage load time decreased quantity detecting- recording means 22 is outputted as the getting-off load from a getting-off load output means 24.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an elevator boarding/alighting load detection device for detecting the amount of load in a car at the time of boarding and alighting from the elevator.

[Prior Art] Fig. 5 is a block diagram showing a conventional elevator passenger number detection device of this kind disclosed in, for example, Japanese Unexamined Patent Publication No. 54-70544. The attached load detection device (2) is this load detection device (
The output of 1) is an in-car load signal proportional to the load in the car, (3) is a change detection device that detects the amount of change in this in-car load signal (2), (4> , (5>, ( 6) constitutes a part of this change detection device (3) and is connected to the load detection device (1), and when the following signal is input to the input terminal P, the signal is input to the input terminal P. A memory element that stores the minimum value of the following signal and outputs the contents, (7>, (8), and (9) are arrival pulse signals indicating the arrival of the car, respectively, and the stop period of the car. The stop signal that is continuously output during the middle of the day, and the start pulse signal that is output when the car starts, (10), (11), and (12) are the signals from the memory elements (4>, (5>, and (6)), respectively. The output load signals (13) and (14) are respectively stored in the memory element (4).
) and (5>, (5) and (6)) and from these storage elements (4>, (5), <6), the load signal at the arrival time (10>, the load signal during the stop period ( 11), the load signal (12) of the departure time is input, and its input terminal A
The subtracters (15) and (16>) subtract the load signal input to the input terminal B from the load signal input to the input terminal B, and the outputs of the subtractors (13) and (14>, respectively, are the number of alighting signals and the number of passengers boarding. It's a signal.

The conventional elevator passenger number detecting device is configured as described above, and its operation is as follows with reference to the explanatory diagram of FIG. 6 showing the temporal change in the load amount in the elevator car.

The car load signal (2) is detected by the load detection device (1), and the storage elements (4) and (5) of the change amount detection device (3) are detected.
, <6>. When the elevator arrives, the memory element (4) is inputted with the arrival pulse signal (7), which causes the car load signal (2), that is, the load (S, ) at the arrival time (Ll) shown in FIG. is stored once and its contents are sent to the subtracter (13) as a load signal (10).

The memory element (5) stores a stop signal (
8) is input, and as a result, the minimum load when the elevator stops, that is, the load (S2) at the exit completion time <t2> shown in FIG.
A load signal (11) is output to the memory element (6).
Similarly to the memory element (4), the departure pulse signal (9) is inputted, and the load (S,〉) at the departure time (t,) shown in No. 6111 is stored, and the subtracter (14) Load signal (
12> is output. As is clear from FIG. 6, the alighting number signal (15) indicating the alighting load amount is
2), and the occupancy signal (16) is given in proportion to the load (S,) and the load (S2).

[Problem to be solved by the invention] In the conventional elevator passenger number detection device as described above,
The alighting load is the difference in the load in the car from when the elevator arrives at a certain floor until the passenger completes alighting at that floor. It is said that However, if someone gets on the vehicle while the vehicle is being disembarked, the overall alighting load will be reduced.
There was a problem in that an error occurred in the passenger load.

The present invention has been made to solve these problems, and an object of the present invention is to provide an elevator passenger load detection device that can accurately detect the passenger passenger load of an elevator.

[Means for Solving the Problems] The elevator boarding/alighting load detection device according to the present invention detects temporal changes in the car load from the time the elevator arrives at a predetermined floor until the elevator departs. a time change detection means; an in-car load time increase detection and recording means for detecting and sequentially recording a temporal change in the in-car load increase from the output value of the in-cage load time change detection means; In-car load time decrease amount detection and recording means for detecting and sequentially recording the temporal change in the in-car load time decrease amount from the output value of the time change amount detection means; a passenger load amount output means for outputting the sum of the in-car load increase amounts as a passenger load amount; and an alighting load that outputs the sum of the in-car load decrease amounts recorded by the in-car load time decrease amount detection and recording means as an alighting load unit. Quantity output means.

[Function] In this invention, by detecting and recording temporal changes in the amount of increase in car load, and detecting and recording temporal changes in amount of decrease in load in car, load fluctuations when the elevator is stopped can be detected and recorded. It can be captured accurately in time. As a result, it is possible to eliminate detection errors in the load on boarding and the load on exiting the vehicle caused by riding first.

[Embodiment] FIG. 1 is a block diagram showing an embodiment of the present invention.
(17) is an elevator car, and (18) is installed, for example, under the floor of the elevator car (17), and the load inside the elevator car (17) is A load amount detection device (19) as an in-car load time change amount detection means for detecting a temporal change in is connected to this load amount detection device (18>,
Initial load recording means (20) for determining and recording the initial value of the load amount in the elevator car (17) detected by the load amount detection device (18>), similarly includes the load amount detection device Wl.
final load detection means (21) connected to (18), which determines and records the end value of the load amount in the elevator car (17) detected by the load amount detection device (18>) as the final in-car load value; ) is a load amount detection device (18>), an initial load recording means (19>), and a final load detection means (20).
The difference between the peak value of the chevron shape described later and the peak value immediately before the time fluctuation of the car load including the final car load value recorded by the final load detection means <20>, or the chevron shape described above. Peak value and initial load recording means (19)
(2) an increase detection and recording means as an in-car load time increase detection and recording means for detecting and sequentially recording an in-cage load time increase amount based on the difference from the initial value of the in-cage load recorded by (2);
2) is similarly connected to the load amount detection device (18), the initial load recording means (19), and the final load detection means (20), and reads the final in-car load value recorded by the final load detection means (20>). The difference between the peak value of the valley shape described later and the previous peak value, or the peak value of the valley shape mentioned above and the initial load in the cage recorded by the initial load recording means (19). Decrease amount detection and recording means (23) is connected to increase amount detection and recording means (21) as an in-car load time decrease amount detection and recording means for detecting and sequentially recording the time decrease amount of the in-car load from the difference with the value. passenger load amount output means (24) that captures and outputs the sum of the values recorded by the increase amount detection and recording means (21) as a passenger load amount;
is similarly connected to the reduction amount detection and recording means (22), and the alighting load amount output means (25) receives and outputs the sum of the values recorded by the reduction amount detection and recording means (22) as the alighting load amount. Passenger load amount output means (23) is provided in an elevator group management control panel (not shown) or an elevator group management control device (described later) in the elevator control panel.
and an elevator group management control means that is connected to the exit load amount output means (24), takes in information on the passenger load amount and the exit load amount from these output means, and manages the elevator group in accordance with this information.

Figure 2 shows the configuration of the entire elevator including the embodiment shown in Figure 1, where (26> is an elevator control device that controls the elevator, and (27) is connected to this elevator control device (26) and is connected to the control device. A drive control circuit (2) that sends and receives signals and also sends out drive signals to drive the elevator.
8) is a hoisting motor that is coupled to this drive control circuit (27) and whose hoisting operation is controlled by the drive signal sent from it; (17) is connected to this hoisting motor (28) via a cable; The elevator car (18) whose lifting and lowering operations are controlled by this means is the elevator car (17).
The above-mentioned load amount detection device (29) attached to the hoisting motor (28) is connected to the hoisting motor (28) via a cable, thereby controlling the lifting and lowering of the elevator car (17). (30> is connected to the elevator control system ff (26) and includes a converter (30a) that converts the elevator car load signal sent from the elevator car load signal into a form suitable for an internal digital signal;
a), a storage device (30b) connected to the conversion device (30a) and the storage device (30b),
Elevator group management control means (CPO) (30c) that performs necessary arithmetic processing when the elevator car load signal is input, stores it in a storage device (30b), and outputs it to the outside. This is a group management control device corresponding to 25). In addition, this group management control device (30
) is connected to a plurality of other elevator control devices (not shown) in addition to the elevator control device (26). The storage device (30b) also stores operating programs for the group management control unit W (30) and other means, which are executed by the CPU (30c).

In the elevator passenger load detection device configured as described above, the following operation can be obtained by the program shown in FIG.

In step S1, the elevator door opening start time is determined, and in step S2, each data is set, that is, the current load is set as the initial load and the final load, and the amount of increase and amount of decrease are set to O. In step S3, the current load is detected after a certain period of time has elapsed, and in step S4, the current load is compared with OLH (maximum occupancy).If the current load is larger, the current load is detected by OLH in step S5. Correct.Step S6
The final load is compared with the current load, and if the current load is larger than the final load, the difference between the current and final load is added to the increase amount as an increment in step S7. If the current load is less than the final load, the difference between the final load and the current load is added to the reduction amount as a reduction in step S8. In step S9, the current load is corrected as the final load, and in step S10, it is determined whether or not the elevator door has been completely closed.If the door has not been completely closed, the operation is repeated from step S3.In step 6, the upper limit value is set. 0 to set the final load and the lower limit as the initial load
In step SL2, the amount of increase is compared with the upper limit value, and when the amount of increase is smaller than the upper limit value, the amount of increase is set as the passenger load amount by hand 111i313, and conversely, when the amount of increase is more than the upper limit value, step S
In step 14, the upper limit value is set as the passenger load amount. In step S1.5,
The amount of decrease is compared with the lower limit value, and if the amount of decrease is smaller than the lower limit value, the amount of decrease is set as the load amount for getting off the vehicle in step S16, and conversely, when the amount of decrease is greater than the lower limit value, the lower limit value is set as the load amount for getting off the vehicle in step S17. do.

Figure 4 is a graph showing the amount of load inside the car when a person gets on and off the elevator while the door is opened and closed once.The horizontal axis shows time, and the vertical axis shows the amount of load inside the car. It is. Hereinafter, features of the embodiment of the present invention will be further explained with reference to FIG.

For example, when the elevator arrives at a certain floor and the door is opened at time (t,), the load in the section (when a person gets on the elevator) is (
The load amount increases from (old) to (A2), but if it exceeds the OLH shown in the figure, the load amount is corrected to this OLH. After that, when the person gets off the train (section b), the load amount decreases to (W3).

In this way, the load amount detection device (18
) is monitored from the time when the door starts closing until the time when the door closes, t, > 6. Then, when the door closes, the amount of passengers getting on board and the amount of load getting off the vehicle are determined.

The load increase amount in this example is given as a result of adding 0LH-Wl of section a, W4-W3 of section C, and W6-W5 of section e. The amount of decrease is given as the result of adding the section ○LH-W3 and the section d W4-W5.

Then, this load increase amount is compared with the final load (W6) to give an onboard load amount, and the load decrease amount is compared with the initial load (old) to give an alighting load amount. In this way, by constantly monitoring temporal fluctuations in the amount of load in the car, it is possible to eliminate errors caused by pre-loading and the like.

[Effects of the Invention] As explained above, the present invention includes an in-cage load time change amount detection means for detecting a time change in an in-cage load, and a means for detecting a time change in an in-cage load increase amount and a decrease amount. The car includes a car load time increase amount and decrement amount detection recording means for recording, and a passenger load 1 output means and an alighting load amount output means for outputting a passenger load amount and an alighting load amount, respectively, from the sum of the outputs of these means. By doing so, it is possible to eliminate errors in passenger load amount detection caused by passengers boarding first, etc., thereby enabling highly accurate detection and aggregation of the passenger load amount, which has the effect of enabling highly accurate elevator control.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a block diagram of the entire elevator including this invention, FIG. 3 is a flowchart explaining the operation of FIG. 2, and FIG. FIG. 5 is a block diagram showing the conventional example, and FIG. 6 is a characteristic diagram showing the characteristics of the conventional example similar to FIG. 4. In the figure, (17> is an elevator car, (18) is a load amount detection device as means for detecting a time change amount of load in the car,
(21) means for detecting and recording an increase in car load time, (22) means for detecting and recording a decrease in load time in a car, and (23) outputting the passenger load amount. Means (24) is an alighting load amount output means. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] an in-car load time change amount detection means for detecting a temporal change in the in-car load amount from when the elevator arrives at a predetermined floor to when the elevator departs; In-car load time increase detection and recording means detects and sequentially records temporal changes in in-car load increase from output values; An in-car load time decrease amount detection and recording means for detecting and sequentially recording temporal changes in the load decrease amount and an in-car load time increase amount detection and recording means are connected to the in-car load time increase amount detection and recording means, and the total sum of the in-car load increase amount recorded therein is recorded. A passenger load amount output means outputs as a passenger load amount, and an alighting load amount that is similarly connected to the in-car load time decrease amount detection and recording means and outputs the sum of the in-car load decrease amount recorded there as an alighting load amount. 1. An elevator boarding/alighting load detection device, comprising: an output means.