JP2014231409A - Elevator system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator system in which a situation that a passenger cannot get in a car can be detected by a simple structure.SOLUTION: An elevator system comprises an entrance sensor 6, a car 3, a door photo-electronic device 5 and full-packing determination means 7. The entrance sensor 6 is provided at the entrance of an elevator and detects existence of a passenger. The door photo-electronic device 5 is provided at the car 3 and detects existence of a passenger who passes through the doorway of the car 3. The full-packing determination means 7 determines whether or not the car 3 is space-wise fully packed so that no passenger can get in. And, in a case that the entrance sensor 6 becomes not to detect existence of a passenger without detecting existence of a passenger by the door photo-electronic device 5, after the entrance sensor 6 detects existence of a passenger when the door of the car 3 is open at the entrance, the full-packing determination means 7 determines that the car 3 is space-wise fully packed.

Description

  The present invention relates to an elevator system.

  If the elevator car is full, passengers at the landing cannot get into the car even if the car stops at the landing. Transportation efficiency declines when a full car stops on the floor where there are no passengers to get off. In addition, passengers at the landing cannot get in the car that has arrived and feel uncomfortable.

  Patent Document 1 discloses a conventional technology of an elevator. In the elevator described in Patent Document 1, it is detected that the car is full based on the detection result of the scale device provided in the car. When it is detected that the car is full, the car is not stopped on the floor where there are no passengers getting off. If there are passengers at the landing, stop other cars at the landing.

  Even if there are fewer passengers in the car, the car may not have room for other passengers. For example, when a passenger who uses a wheelchair is in the car and a shopping cart or a stroller is in the car, only a smaller number of people than the capacity can be in the car.

  In the elevator described in Patent Document 1, it is detected that the car is full based on the detection result of the scale device. In the elevator described in Patent Document 1, when there is no space for a new passenger in the car, the car may stop at a landing where no one gets off. Patent Documents 2 to 5 disclose an apparatus for detecting a situation in which a passenger cannot get into a car.

  In the elevator described in Patent Document 2, an IC tag is attached to a shopping cart or the like. When the information of the IC tag is read, the occupation ratio in the basket such as a shopping cart is calculated based on the read information of the IC tag.

  In the elevator described in Patent Document 3, a photoelectric device is installed in a car. The optoelectronic device detects a person in the vicinity of the door in the car. Even after an announcement such as “Put in the back” is made, if the presence of a person is detected by the photoelectric device, it is detected that the car is full.

  In the elevator described in Patent Document 4, many sensors are installed on the floor of a car. In the elevator described in Patent Document 5, a camera for photographing the inside of a car is installed.

Japanese Patent Laid-Open No. 6-1550 JP 2006-199464 A JP-A-7-101642 JP 2010-241546 A JP 2008-120548 A

  The conventional elevator has a problem that an expensive device is required to detect a situation in which a passenger cannot get into the car. For example, in the elevators described in Patent Documents 2 and 4, a dedicated device is required to detect the above situation. The elevator described in Patent Document 5 requires an expensive camera and an apparatus for performing image processing.

  On the other hand, the elevator described in Patent Literature 3 detects a situation in which a passenger cannot get into the car on condition that the car load fluctuation does not occur twice when the car stops at the landing. At the first stop, it cannot be detected that there is no space for a person to ride in the car. That is, there are cases where it is impossible to detect a situation in which the passenger cannot get into the car.

  The present invention has been made to solve the above-described problems. An object of the present invention is to provide an elevator system that can detect a situation in which a passenger cannot enter a car with an inexpensive configuration.

  An elevator system according to the present invention is provided at an elevator hall, where a presence sensor that detects the presence of a passenger, a car that moves up and down in an elevator hoistway, a car that is provided in a car and passes through a car doorway A door photoelectric device for detecting the vehicle and a fullness determining means for determining whether or not the car is a spatially full space for passengers to enter, and the fullness determining means is configured such that the door of the car is opened at the landing. When the presence of a passenger is detected by the landing sensor and the presence of the passenger is not detected by the door photoelectric device after the presence of the passenger is detected by the landing sensor, the car is determined to be full. Is.

  With the elevator system according to the present invention, it is possible to detect a situation in which a passenger cannot get into the car with an inexpensive configuration.

It is a figure which shows the structure of the elevator system in Embodiment 1 of this invention. It is a perspective view which shows the cage | basket | car of an elevator. It is a flowchart which shows operation | movement of the elevator system in Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the elevator system in Embodiment 1 of this invention.

  The present invention will be described in detail with reference to the accompanying drawings. The overlapping description will be simplified or omitted as appropriate. In each figure, the same or corresponding parts are denoted by the same reference numerals.

Embodiment 1 FIG.
1 is a diagram showing a configuration of an elevator system according to Embodiment 1 of the present invention. The group management device 1 manages a plurality of elevators installed in a building or the like as a group. FIG. 1 shows, as the simplest example, a case where the group management apparatus 1 performs group management of the A machine and the B machine. In the following, when specifying which unit belongs to which machine, A or B is added after the reference numeral. That is, A is appended to the sign for the equipment of Unit A. For the equipment of Unit B, add B after the code.

  The car control device 2 controls the elevator car 3. For example, the car control device 2A controls the operation of the car 3A. The car 3 includes a scale device 4 and a door photoelectric device 5. The car 3 moves up and down in the elevator hoistway and stops at the landing on each floor. A landing sensor 6 is provided at the landing where the car 3 stops. FIG. 2 is a perspective view showing the elevator car 3. FIG. 2 shows a state where the car 3 is stopped at the landing on the floor where the car 3 is located.

  The scale device 4 detects the load weight of the car 3. For example, the scale device 4A detects the load weight of the car 3A. The scale device 4 is disposed, for example, under the floor of the car 3. Information on the weight of the car 3 detected by the scale device 4 is input to the group management device 1. The installation location of the scale device 4 is not limited to the car 3. For example, the scale device 4 may be attached to the end of the main rope that suspends the car 3.

  The door photoelectric device 5 detects the presence of a passenger passing through the doorway of the car 3. For example, the door photoelectric device 5A detects the presence of a passenger passing through the entrance / exit of the car 3A. The door photoelectric device 5 includes, for example, a light projecting element and a light receiving element. When the car 3 includes a double-open door, the light projecting element is provided on a door disposed on one side of the entrance / exit. The light receiving element is provided on a door disposed on the other side of the entrance / exit. The light projecting element irradiates the detection light 5a so as to cross the entrance / exit. If there is no passenger passing through the doorway, the detection light 5a emitted from the light projecting element is received by the light receiving element. When the passenger passes through the entrance for getting on or getting off, the detection light 5a emitted from the light projecting element is blocked by the passenger. The door photoelectric device 5 detects the presence of a passenger based on the fact that the light receiving element does not receive the detection light 5a. The group management device 1 acquires the detection result of the door photoelectric device 5. The configuration of the door photoelectric device 5 is not limited to the above configuration.

  The hall sensor 6 detects the presence of passengers. For example, the landing sensor 6A detects the presence of passengers at a landing where the car 3A stops. Specifically, the hall sensor 6 detects the presence or absence of a passenger in the detection range. The detection range of the landing sensor 6 is set to a certain range where a passenger passes when the passenger gets into the car 3. The group management device 1 acquires the detection result of the hall sensor 6.

  FIG. 2 shows an example of the detection range of the hall sensor 6. In the example shown in FIG. 2, the hall sensor 6 is installed above the hall entrance / exit. The hall sensor 6 emits light for detecting the presence of a passenger so that the detection range is set at a position very close to the entrance / exit of the car 3 when the car 3 stops at the hall. According to such a configuration, the presence of the passenger is surely detected by the landing sensor 6 when the passenger gets into the car 3. In addition, even if the passenger is about to get into the car 3, the presence of the passenger is detected by the landing sensor 6 before reaching the entrance of the car 3. The configuration of the hall sensor 6 is not limited to the above configuration.

  The group management device 1 includes a full determination unit 7, a full determination release unit 8, and a scale increase / decrease detection unit 9.

  The fullness determination means 7 determines whether or not the car 3 is spatially full. For example, the fullness determination means 7 determines whether or not the car 3A is spatially full. Spatial fullness means that the car 3 is in a state where passengers cannot enter. For example, when a parent carrying a baby in a stroller rides in the car 3, there may be no space for other passengers in the car 3, even if there are fewer passengers in the car 3. In this way, a state where there is no space for a new passenger to ride in the car 3 is referred to as a space full. The fullness determination means 7 makes the above determination based on the detection result of the hall sensor 6 and the detection result of the door photoelectric device 5. The fullness determination means 7 also uses the detection result of the scale increase / decrease detection means 9 as necessary when performing the above determination.

  The fullness determination releasing means 8 determines whether the car 3 is not spatially full. For example, the fullness determination releasing means 8 determines whether or not the car 3A is not spatially full. When the fullness determination canceling means 8 determines that the car 3 that has been confirmed to be full by the fullness determination means 7 is not spatially full, the fullness determination releasing means 8 cancels the above-mentioned recognition for the car 3. The full determination release means 8 makes the above determination based on the detection result of the scale increase / decrease detection means 9.

  The scale increase / decrease detection means 9 detects an increase / decrease in the load weight of the car 3. For example, the scale increase / decrease detection means 9 detects an increase / decrease in the load weight of the car 3A. The scale increase / decrease detection means 9 performs the above detection based on the load weight of the car 3 detected by the scale device 4.

  Next, the operation of the elevator system having the above configuration will be described with reference to FIGS. 3 and 4 are flowcharts showing the operation of the elevator system according to Embodiment 1 of the present invention. FIG. 3 shows a procedure for detecting that the car 3 is full. The operation flow shown in FIG. 3 is performed for each of Unit A and Unit B.

  Stop at the landing on the floor where the elevator car 3 is located (S101). It is assumed that the car 3 is not determined to be full in S101. When the car 3 stops at the landing in response to the call, the car control device 2 opens the door at the landing. The full capacity determination means 7 performs the determination shown in S102 to S104 while the door of the car 3 is open at the landing.

  The fullness determination means 7 first determines whether or not the presence of a passenger has been detected by the landing sensor 6 at the landing where the car 3 is stopped (S102). When the hall sensor 6 does not detect the presence of passengers (No in S102), the fullness determination means 7 determines whether or not the car 3 has departed from the hall (S106). If the car 3 has not left the landing in S106, the process returns to S102.

  When the presence of a passenger is detected in S102, the fullness determination means 7 determines whether the presence of a passenger is detected by the door photoelectric device 5 (S103). When the passenger enters the car 3 from the landing, the door photoelectric device 5 detects the presence of the passenger after the landing sensor 6 detects the presence of the passenger. If the door photoelectric device 5 detects the presence of a passenger in S103, the process proceeds to S106.

  When the passenger stays in the vicinity of the entrance of the hall, even if the hall sensor 6 detects the presence of the passenger, the door photoelectric device 5 does not detect the presence of the passenger thereafter. When the presence of a passenger is not detected in S103, the fullness determination means 7 determines whether or not there are no passengers from the detection range of the landing sensor 6 (S104). If the presence of a passenger is no longer detected by the hall sensor 6 after the presence of a passenger is detected by the door photoelectric device 5 after the presence of a passenger is detected in S102, the fullness determination means 7 indicates that there is no passenger in S104. Determine. In such a case, the fullness determination means 7 determines that the car 3 is spatially full (S105).

  In order to prevent the car 3 from being determined to be spatially full by the fullness determining means 7 when it is clear that the car 3 is not spatially full, the following operation may be added. For example, the fullness determination means 7 determines whether or not the car 3 is spatially full when the loaded weight detected by the scale device 4 is equal to or greater than the first reference value. The first reference value is, for example, a value that is 60% of the rated load weight. Other values may be adopted as the first reference value. When the loaded weight detected by the scale device 4 is smaller than the first reference value, the fullness determination means 7 does not determine that the car 3 is spatially full. For example, it is possible to prevent an erroneous determination from being made when a passenger leaves the empty car 3 just before his / her convenience.

  If it is determined that the car 3 is full, the car control device 2 that controls the car 3 does not respond to the hall call. This prevents the car 3 from stopping at a landing where passengers do not get on and off. The car control device 2 makes the car 3 respond to the car call.

  FIG. 4 shows a procedure for releasing the car 3 that is recognized as being full of space from the certification. The operation flow shown in FIG. 4 is performed for each of Unit A and Unit B.

  The car 3 determined to be full in S105 in FIG. 3 stops at the landing on a certain floor in response to the car call (S201). The car control device 2 opens and closes the door at the stopped landing. The car 3 leaves the landing after the door is completely closed (S202).

  At this time, the load weight of the car 3 is detected by the scale device 4 before the door is opened. Further, after the door is closed, the load weight of the car 3 is detected by the scale device 4. Based on the information from the scale device 4, the scale increase / decrease detection means 9 calculates the difference between the load weight of the car 3 when the car 3 arrives at the landing and the load weight of the car 3 when the car 3 leaves the landing. Ask. For example, the scale increase / decrease detection means 9 obtains the difference based on the load weight detected by the scale device 4 before the door is opened and the load weight detected by the scale device 4 after the door is closed.

  Based on the difference obtained by the balance increase / decrease detection means 9, the fullness determination release means 8 determines that the load weight detected by the scale device 4 after the door is closed is based on the load weight detected by the scale device 4 before the door is opened. It is determined whether it is smaller than the second reference value (S203). The second reference value is, for example, a value that is 10% of the rated load weight. Other values may be adopted as the second reference value.

  The fullness determination releasing means 8 determines that the car 3 is not spatially full when the loaded weight after the door is closed is smaller than the loaded weight before the door is opened by a second reference value or more. As a result, the car 3 that has been recognized as being full is released from the authorization (S204).

  If it is an elevator system which has the said structure, the condition where a passenger cannot board the car 3 is detectable with a simple and cheap structure. Further, even if the car 3 is once determined to be full, the determination can be canceled with a simple and inexpensive configuration. Thereby, it is possible to prevent the car 3 from being unnecessarily stopped at the landing, and it is possible to prevent the transportation efficiency from being lowered. In addition, since passengers at the landing cannot ride the car 3 that has arrived, they do not feel uncomfortable.

  In the present embodiment, a case has been described in which a plurality of elevators installed in a building or the like are managed as a group. This elevator system can also be applied to a system in which a building or the like is provided with only one elevator. In such a case, the control device that controls the operation of the elevator is provided with the functions of the fullness determination means 7, the fullness determination release means 8, and the scale increase / decrease detection means 9.

  1 group management device, 2 car control device, 3 car, 4 scale device, 5 door photoelectric device, 5a detection light, 6 landing sensor, 7 fullness judgment means, 8 fullness judgment release means, 9 scale increase / decrease detection means

Claims (4)

A hall sensor provided at the elevator hall for detecting the presence of passengers;
Cars that go up and down in the elevator hoistway,
A door photoelectric device that is provided in the car and detects the presence of a passenger passing through the entrance of the car;
A occupancy determination means for determining whether the car is a spatial occupancy that a passenger cannot enter;
With
When the car door is opened at the landing, the fullness determination means is detected by the landing sensor without detecting the presence of a passenger by the door photoelectric device after the presence of the passenger is detected by the landing sensor. An elevator system that determines that the car is full of space when no passengers are detected. A scale device for detecting the load weight of the car;
With
The fullness determination means includes
When the loading weight detected by the scale device is greater than or equal to the first reference value, it is determined whether or not the car is full of space,
The elevator system according to claim 1, wherein when the loaded weight detected by the scale device is smaller than the first reference value, it is not determined that the car is full. A scale device for detecting the load weight of the car;
Fullness determination release means for determining whether the car is not full of space;
With
When the car opens and closes the door, the fullness determination canceling means is configured such that the load weight detected by the scale device after the door is closed is a second reference based on the load weight detected by the scale device before the door is opened. The elevator system according to claim 1, wherein if the value is smaller than the value, the car is determined not to be full. Car control means for causing the car to respond only to the car call without responding to the hall call when it is determined that the car is full of space;
The elevator system as described in any one of Claims 1-3 provided with these.

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