JP2006290509A - Control device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To forcibly open a door when a predetermined condition is satisfied to prevent a false trapping state of a passenger in an elevator, to thereby improve safety, even if a passenger cannot get off the car and escape for any reason after an elevator has landed on an evacuation floor or a closest floor, by rescue operation in the event of a natural disaster. <P>SOLUTION: An elevator control device hoists the elevator car according to a call registration signal from any of a landing call registration device and a car call registration device 82. In the event of a natural disaster, the elevator car completes the rescue operation to be in a door close halt state at a predetermined floor, a detection means 304 determines and detects whether or not there is any passenger who failed to escape from the elevator car. Further, a door open/close control means 305 forcibly opening the door, when the false-trapped passenger detected by the detection means operates a door open button or the trapped passenger did not operate the door open button even if a predetermined time has passed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator control device.

  For example, prior art aimed at dealing with passenger confinement in an elevator includes, for example, an elevator abnormality notification device (Patent Document 1) that announces that it is confined at a landing when passenger confinement is determined. An elevator driving device (Patent Document 2) that opens the door when a car call is not registered after a certain period of time has been detected and an abnormality has occurred in the car has been proposed (Patent Document 2), and more suitable for the surrounding environment An elevator announcement device (Patent Document 3) has been proposed as an apparatus that can make announcements by volume.

JP 2000-143110 A JP-A-6-1555 JP 2003-246558 A

  In recent years, disasters such as earthquakes frequently occur, and when a disaster occurs, the elevator is landed on the evacuation floor or the nearest floor and a rescue operation is performed, and then the elevator is put into a closed door for safety. In this way, when the elevator is in a door-closed state, it is necessary to cope with a case where a passenger who has escaped from the elevator car (hereinafter referred to as “the car”) becomes trapped. However, the above Patent Documents 1, 2, and 3 do not disclose the correspondence to such a situation in any document.

The elevator control device according to the present invention is an elevator control device that raises and lowers an elevator car in response to a call registration signal of either a hall call registration device or a car call registration device. Detection means for determining and detecting the presence or absence of passengers who have escaped from the elevator car (hereinafter referred to as “pseudo confined passengers”) when the rescue operation is completed and the door is closed on the predetermined floor;
And when the pseudo confinement customer detected by this detecting means operates the door opening button of the car call registration device, or when the pseudo confinement customer does not operate the door opening button even after a predetermined time has passed, the door is forced. It is provided with door opening / closing control means to be opened.

  According to the elevator control device of the present invention, in the rescue operation operation in the event of a disaster, after the elevator has landed on the evacuation floor or the nearest floor, passengers in the car cannot get off from the car for some reason and are delayed to escape Even if it is in a closed state, it can be forcibly opened by avoiding a false confined state by satisfying a predetermined condition, and safety is further improved, and suspicious persons, children, elderly people, etc. get on for a long time The effect that can be prevented.

Embodiment 1 of the present invention will be described below with reference to the drawings.
In addition, the same code | symbol shows the same or an equivalent part between each figure.

Embodiment 1 FIG.
First, the elevator control system for controlling the raising and lowering of the elevator according to the first embodiment will be described with reference to FIG.
FIG. 2 is a system configuration diagram showing the elevator control device 30.
In FIG. 2, 1 is a motor for driving a car, 2 is a pulse encoder attached to the motor 1 to detect the rotation of the motor 1, and 4 is a PWM from a pulse width modulation (hereinafter referred to as “PWM”) unit 3006 which will be described later. A gate signal generating circuit for generating a gate signal according to a command, 5 is a power source, 6 is a power circuit for switching the output of the power source 5 according to the output of the gate signal generating circuit 4, and supplies it to the motor 1, and 7 is synchronized with the motor 1 The rotating sheave 8 is coupled to the rope 11, and the cage is moved up and down in response to the rotation of the sheave 7, and 9 is a counterweight coupled to the other end of the rope 11.
The car 8 is provided with an announcement device 80 for notifying passengers in the car, a scale device 81 for detecting a load in the car, a camera (described later), a car call registration device 82, and the like. The car call registration device 82, the announcement device 80, and the scale device 81 are connected to the elevator control circuit 3 via the transmission line 12.
Next, 10 is a hall call registration device RSa to RSn provided with hall call registration buttons, and performs hall call registration control on each floor. These hall call registration devices RSa to RSn are also connected to the elevator control circuit 3 via the transmission line 12.
The elevator control circuit 3 includes an elevator control device 30 and a transmission interface 31, and the transmission interface 31 controls transmission with the hall call registration device 10 and the devices 80, 90, 91 in the car 8. Is.

FIG. 3 is a block diagram showing the elevator control device 30. In FIG. 3, the same components as those in FIG. 2 are denoted by the same reference numerals.
The elevator control device 30 stores a central processing unit (hereinafter referred to as CPU) 3001 as control means for performing various arithmetic processes, a pulse count unit 3004 for counting the pulse output of the pulse encoder 2, and a control program for the CPU. ROM 3005, two-port RAM 3003 for exchanging data with transmission interface 31, RAM 3002 for storing CPU calculation data, etc., and PWM unit for outputting a PWM command for controlling raising / lowering of car 8 according to the CPU calculation result 3006.

Next, operation | movement of the elevator control apparatus 30 comprised as mentioned above is demonstrated.
When a call registration occurs from the car call registration device 82 or the hall call registration device 10, this is read into the 2-port RAM 3003 via the transmission interface 12 via the transmission line 12. In response to this call registration signal, the CPU 3001 reads a predetermined speed pattern (speed command) from the ROM 3005.
The pulse count unit 3004 counts the pulse output of the pulse encoder 2 that rotates in synchronization with the rotation of the motor 1, and the CPU 3001 determines the position of the car and the rotation speed of the motor 1 based on the count value of the pulse count unit 3004. And the rotational speed of the motor 1 at each position point is controlled so as to follow the speed pattern.
The program for this operation is stored in the ROM 3005.
The PWM unit 3006 outputs a PWM command corresponding to the speed pattern command value, and the gate signal generation circuit 4 outputs a gate signal according to the PWM command.
Note that the program for this operation is also stored in the ROM 3005.
The power circuit 6 supplies a power output to the motor 1 while switching according to the gate signal.
In this way, the car moves up and down by controlling the rotation speed of the motor 1.

Next, the main part in Embodiment 1 is demonstrated based on FIG.1 and FIG.4.
FIG. 1 is a block diagram for each S / W function of the elevator control device 30, and FIG. 4 is a flowchart for realizing the S / W function block of FIG. 1, and this program is stored in the ROM 3005.
In FIG. 1, reference numeral 301 denotes a car load detection unit that detects a car load based on a scale signal WH from the scale device 81. Reference numeral 302 denotes in-car image detecting means for detecting passengers in the car from camera images from a camera (not shown) attached to the car. 303 is an elevator operation mode detection means, and detects that the elevator has shifted to the door closing standby state without any direction.
304 is not able to get off from the inside of the car for reasons such as being delayed from the inside of the car based on the detection signals from the in-car load detecting means 301 or the in-car image detecting means 302 and the elevator operation mode detecting means 303. A pseudo confinement passenger detection means for detecting a pseudo confinement passenger remaining in the car, 306 is an announcement for prompting the passenger to perform an operation for getting off the vehicle based on the announcement ringing command from the pseudo confinement customer detection means 304 It is an announcement issuing means for reporting. 305 is a door opening / closing control means for outputting a door opening / closing command for opening the car door in response to a door opening request signal from the pseudo confinement customer detecting means 304, the announcement issuing means 306 and the car door control device (not shown). is there.

Next, the operation of the CPU in the first embodiment will be described with reference to FIG.
In FIG. 4, in step 41, it is determined whether or not the elevator rest state has elapsed for a predetermined time (60 seconds in this example). Here, the elevator resting state is a state in which the elevator is in a non-directional state and is in a door-closed standby state, or when a disaster occurs, the elevator is landed on the evacuation floor or the nearest floor and a rescue operation is performed, and then the safety operation is performed. Therefore, the elevator cannot be used any more by placing the elevator in a closed door state.
If it is before progress of the predetermined time of an elevator rest state, it will progress to step 48 and will continue normal driving | operation operation | movement.
If the predetermined time has elapsed, the process proceeds to step 42 to determine whether there is a passenger in the car. For example, it is determined whether the predetermined value of the scale detection value is 30 kg or more. Here, the determination of the presence / absence of passengers in the car is made based on the scale detection value, but a camera may be installed in the car and the presence / absence determination of passengers based on the in-car image or a combination thereof.
If the scale detection value is less than the predetermined value, the suspension state is continued in step 49 as no passenger in the car. If the specified value is exceeded, it is assumed that there are passengers in the car, and an announcement is issued to prompt the passengers to get off the vehicle. Please press the door open button. If the light is off, turn it on.
In step 45, it is determined whether or not the door open button has been pressed, and if it has been pressed, the process proceeds to step 46, and the door is opened, and in step 47, "please get off when the door opens" is announced.
If the door open button has not been pressed, it is determined in step 50 whether a predetermined time (for example, 60 seconds) has elapsed, and if not, step 45 is repeated.
If the predetermined time has elapsed, it is determined that the passenger in the car cannot perform the operation for getting off the vehicle, and the door is opened in step 51, and “boo Xn” is announced in step 52.
The step 52 is not an announcement for prompting the passenger to perform an operation for getting off, but is for notifying the surrounding residents and the like that there is a possibility that the passenger in the car may not move.

As described above, since the announcement is issued to prompt passengers who are late to get out of the car to get out of the car, the elevator can be used in the rescue operation when a disaster occurs. Even if the passenger is late to escape from the car after landing on the floor, there is an effect of avoiding a pseudo confinement state.
In addition, even if passengers in the car become unable to get out of the car for some reason, it is configured to forcibly open the door and notify the surrounding residents, etc., as the predetermined conditions are met, This improves safety and prevents long-term rides such as suspicious persons, children, and elderly people.

It is a block diagram for every S / W function of the elevator control apparatus in Embodiment 1 of this invention. It is a system configuration figure showing an elevator control device in Embodiment 1 of this invention. It is a block diagram which shows the elevator control apparatus in Embodiment 1 of this invention. It is a flowchart for implement | achieving the S / W functional block of FIG.

Explanation of symbols

1 Motor 2 Pulse encoder
3 Elevator control circuit 30 Elevator control device 31 Transmission interface
4 Gate signal generator 5 Power supply
6 Power circuit 7 Sheave
8 Car 80 Announcement device 81 Weighing device 82 Car call registration device
9 counterweight 10 landing call registration device RSa-RSn 11 rope 12 transmission line 3001 central processing unit (CPU)
3002 RAM 3003 2-port RAM
3004 Pulse count unit 3005 ROM
3006 PWM unit
301 In-car load detection means 302 In-car image detection means 303 Elevator operation mode detection means 304 Pseudo confinement customer detection means 305 Door open / close control means 306 Announcement notification means

Claims (2)

In the elevator control device that raises and lowers the elevator car according to the call registration signal of either the hall call registration device or the car call registration device,
Detection means for determining and detecting the presence or absence of passengers who have escaped from the elevator car when the elevator car completes the rescue operation in the event of a disaster such as an earthquake or fire and enters the door-closed suspension state on the predetermined floor,
When the passenger detected by the detecting means operates the door opening button provided in the car call registration device, or when the passenger does not operate the door opening button even after a predetermined time has elapsed, the door is forcibly opened. An elevator control device comprising door opening / closing control means. In the elevator control device that raises and lowers the elevator car according to the call registration signal of either the hall call registration device or the car call registration device,
Detection means for determining and detecting the presence or absence of passengers who have escaped from the elevator car when the elevator car completes the rescue operation in the event of a disaster such as an earthquake or fire and enters the door-closed suspension state on the predetermined floor,
And an announcement issuing means for encouraging the passenger to get off and announcing the confinement of the passenger to the outside of the car when a passenger who has missed escape is detected by the detection means,
And when the passenger operates the door opening button provided in the car call registration device by the announcement, or when the passenger does not operate the door opening button even after a predetermined time has elapsed, the door opening and closing is forcibly opened. An elevator control device comprising control means.

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