CN112938718A - Elevator light curtain failure self-checking method and device - Google Patents
Elevator light curtain failure self-checking method and device Download PDFInfo
- Publication number
- CN112938718A CN112938718A CN202110119342.5A CN202110119342A CN112938718A CN 112938718 A CN112938718 A CN 112938718A CN 202110119342 A CN202110119342 A CN 202110119342A CN 112938718 A CN112938718 A CN 112938718A
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- China
- Prior art keywords
- light curtain
- elevator
- detection
- state
- infrared receiver
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
Abstract
The invention discloses a self-checking method and a device for elevator light curtain failure, which comprise a light curtain infrared emitter and a light curtain infrared receiver, wherein the light curtain infrared receiver is arranged at one end of the light curtain infrared emitter, one end of the light curtain infrared receiver is electrically connected with a car control end, and one end of the car control end is electrically connected with a detection and identification device; according to the invention, when the elevator is in a stop state, the elevator door is in a closed state, the first light curtain detection is carried out when the elevator is in a stop state, so that the external factors are discharged, whether the light curtain can be correctly identified in a normal state can be detected, the elevator door is prevented from being frequently opened due to the light curtain fault, when the elevator is in the stop state, the elevator door is in the closed state, the second light curtain detection is carried out when the elevator is in the stop state, and the fault state can be deliberately made under the control of the car control end, so that whether the light curtain can be correctly identified can be judged, and the condition that the elevator clamps people due to the light curtain fault is.
Description
Technical Field
The invention relates to the technical field of elevator light curtain detection systems, in particular to a method and a device for self-checking failure of an elevator light curtain.
Background
The elevator light curtain is a light ray type safety protection device for elevator door, and is suitable for passenger elevator and goods elevator to protect the safety of passengers. The elevator car consists of four parts, namely an infrared transmitter and an infrared receiver which are arranged on two sides of a car door of an elevator, a power box arranged on the top of the car and a special flexible cable. 32 (16) infrared transmitting tubes are arranged in the transmitter, and the transmitting and receiving tubes are sequentially opened under the control of the MCU to continuously scan the car door area from top to bottom to form a dense infrared protection light curtain. When any beam of light is blocked, the control system immediately outputs a door opening signal, the car door stops closing and rotates reversely to open until the elevator door can be normally closed after the passenger or the blocking object leaves the warning area, so that the safety protection purpose is achieved, and the occurrence of accidents caused by people being in the elevator can be avoided.
However, when the light curtain is in failure, the failure can not be normally identified, or the accident that people are clamped by the elevator occurs, or the situation that the elevator door can not be closed occurs, so that an elevator light curtain self-checking system is needed.
Disclosure of Invention
The invention aims to provide a self-checking method and a self-checking device for elevator light curtain failure, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the elevator light curtain failure self-checking method and device comprise a light curtain infrared emitter and a light curtain infrared receiver, wherein one end of the light curtain infrared emitter is provided with the light curtain infrared receiver, one end of the light curtain infrared receiver is electrically connected with a car control end, and one end of the car control end is electrically connected with a detection and identification device.
As a further scheme of the invention: the elevator light curtain failure self-checking method and the device comprise the following steps:
s1: the detection and identification device carries out identification and detection on the running state of the elevator, returns to the initial re-detection if the elevator is in the running state, and carries out the next detection if the elevator is in the stopping state;
s2: the detection and identification device identifies the state of the elevator door, returns to the initial re-detection if the elevator door is not closed, and performs the next detection if the elevator door is closed;
s3: the detection and identification device detects the stop state of the elevator, returns to the initial re-detection if the elevator is not in the stop state, and performs the next detection if the elevator is in the stop state;
s4: the detection and identification device detects, identifies and confirms that the elevator is in a stop state, the elevator door is in a closed state, and the light curtain detection and identification are carried out when the elevator is in the stop state;
s5: the detection and identification device detects and identifies whether the receiving signal of the light curtain infrared receiver is in a blocked state, if the light curtain infrared receiver identifies that the light curtain is in a non-blocked state, the light curtain has no problem, and if the light curtain infrared receiver identifies that the light curtain is in a blocked state, the light curtain has a problem;
s6: the detection and identification device detects, identifies and confirms that the elevator is in a stop state, the elevator door is in a closed state, the elevator is in the stop state, the car control end controls the light curtain infrared emitter to stop emitting the light curtain, the detection and identification device carries out secondary identification on the light curtain, if the light curtain infrared receiver identifies that the light curtain is in a shielded state, the light curtain has no problem, and if the light curtain infrared receiver identifies that the light curtain is not in the shielded state, the light curtain has a problem.
As a still further scheme of the invention: the light curtain infrared emitter and the light curtain infrared receiver are electrically connected with the car control end.
As a still further scheme of the invention: the light curtain infrared emitter and the light curtain infrared receiver are electrically connected with the detection and identification device.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, when the elevator is in a stop state, the elevator door is in a closed state, the first light curtain detection is carried out when the elevator is in a stop state, so that the external factors are discharged, whether the light curtain can be correctly identified in a normal state can be detected, the elevator door is prevented from being frequently opened due to the light curtain fault, when the elevator is in the stop state, the elevator door is in the closed state, the second light curtain detection is carried out when the elevator is in the stop state, and the fault state can be deliberately made under the control of the car control end, so that whether the light curtain can be correctly identified can be judged, and the condition that the elevator clamps people due to the light curtain fault is.
2. According to the invention, detection is carried out when the elevator is in a stop state, the elevator door is in a closed state, and the elevator is in a stop state, so that errors of detection data caused by external factors can be effectively eliminated, and more accurate inspection can be carried out.
Drawings
Fig. 1 is a schematic structural diagram of a self-checking method and a self-checking device for elevator light curtain failure.
Fig. 2 is a schematic view of a system flow structure of an elevator light curtain failure self-checking method and device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in the embodiment of the invention, an elevator light curtain failure self-checking method and device include a light curtain infrared emitter and a light curtain infrared receiver, wherein the light curtain infrared receiver is arranged at one end of the light curtain infrared emitter, one end of the light curtain infrared receiver is electrically connected with a car control end, and one end of the car control end is electrically connected with a detection and identification device.
Example one
The detection and identification device identifies and detects the running state of the elevator, returns to the initial re-detection if the elevator is in the running state, and performs the next detection if the elevator is in the stopping state.
In this embodiment, detection recognition device discerns the detection to elevator running state, ensures that the elevator is in the stall state, prevents that the unable accurate detection of elevator in service.
Example two
The detection and identification device identifies the state of the elevator door, returns to the initial re-detection if the elevator door is not closed, and performs the next detection if the elevator door is closed.
In this embodiment, the detection and identification device identifies the state of the elevator door, and prevents the detection data from being mistaken due to external reasons when the elevator door is in an open state.
EXAMPLE III
The detection and identification device detects the stop state of the elevator, returns to initial re-detection if the elevator is not in the stop state, and performs next detection if the elevator is in the stop state.
In this embodiment, detect recognition device and detect the elevator stop state, prevent that the elevator from not stopping and leading to the detection data to have the mistake.
Example four
The detection and identification device detects and identifies to confirm that the elevator is in a stop state, the elevator door is in a closed state, the elevator is in the stop state, the light curtain detection and identification are carried out when the elevator is in the stop state, the detection and identification device detects and identifies whether a receiving signal of the light curtain infrared receiver is in a shielded state, if the light curtain infrared receiver identifies that the light curtain is in the non-shielded state, the light curtain has no problem, and if the light curtain infrared receiver identifies that the light curtain is in the shielded state, the light curtain has a problem.
In the embodiment, when the elevator is in a stop state, the elevator door is in a closed state, and the elevator is in the stop state, the light curtain detection is carried out for the first time, so that the external factors are discharged, whether the light curtain can be correctly identified can be detected in a normal state, and the elevator door is prevented from being frequently opened due to the fault of the light curtain.
EXAMPLE five
The detection and identification device detects, identifies and confirms that the elevator is in a stop state, the elevator door is in a closed state, the elevator is in the stop state, the car control end controls the light curtain infrared emitter to stop emitting the light curtain, the detection and identification device carries out secondary identification on the light curtain, if the light curtain infrared receiver identifies that the light curtain is in a shielded state, the light curtain has no problem, and if the light curtain infrared receiver identifies that the light curtain is not in the shielded state, the light curtain has a problem.
In the embodiment, when the elevator is in a stop state, the elevator door is in a closed state, secondary light curtain detection is carried out when the elevator is in the stop state, and a fault state can be intentionally manufactured under the control of the car control end, so that whether the light curtain can be correctly identified is judged, and the condition that people are clamped by the elevator due to the fault of the light curtain is prevented.
EXAMPLE six
The car control end is connected with the light curtain infrared transmitter and the light curtain infrared receiver, and the light curtain infrared transmitter and the light curtain infrared receiver are connected with each other electrically.
In this embodiment, electric connection car control end and detection recognition device's infrared emitter of light curtain and infrared receiver of light curtain can conveniently detect the infrared emitter of light curtain and infrared receiver of light curtain.
The working principle of the invention is as follows: the detection and identification device identifies and detects the running state of the elevator, returns to initial re-detection if the elevator is in the running state, performs next-step detection if the elevator is in the stopping state, identifies the state of the elevator door, returns to initial re-detection if the elevator door is not in the closing state, performs next-step detection if the elevator door is in the closing state, detects the stopping state of the elevator, returns to initial re-detection if the elevator is not in the stopping state, performs next-step detection if the elevator is in the stopping state, detects and identifies that the elevator is in the stopping state, closes the elevator door, performs light curtain detection and identification if the elevator is in the stopping state, detects and identifies whether a signal received by the light curtain infrared receiver is in the blocked state or not, and identifies that the light curtain is in the unblocked state if the light curtain infrared receiver is in the stopping state, the light curtain has no problem, if the light curtain infrared receiver identifies that the light curtain is in a shielded state, the light curtain has a problem, the detection and identification device detects and identifies that the elevator is in a stopped state, the elevator door is in a closed state, the elevator is in a stopped state, the car control end controls the light curtain infrared emitter to stop emitting the light curtain, the detection and identification device carries out secondary identification on the light curtain, if the light curtain infrared receiver identifies that the light curtain is in a shielded state, the light curtain has no problem, and if the light curtain infrared receiver identifies that the light curtain is in an unshielded state, the light curtain has a problem.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. The elevator light curtain failure self-checking method and device comprise a light curtain infrared emitter and a light curtain infrared receiver and are characterized in that one end of the light curtain infrared emitter is provided with the light curtain infrared receiver, one end of the light curtain infrared receiver is electrically connected with a car control end, and one end of the car control end is electrically connected with a detection and recognition device.
2. The elevator light curtain failure self-checking method and device according to claim 1, characterized in that the elevator light curtain failure self-checking method and device comprises the following steps:
s1: the detection and identification device carries out identification and detection on the running state of the elevator, returns to the initial re-detection if the elevator is in the running state, and carries out the next detection if the elevator is in the stopping state;
s2: the detection and identification device identifies the state of the elevator door, returns to the initial re-detection if the elevator door is not closed, and performs the next detection if the elevator door is closed;
s3: the detection and identification device detects the stop state of the elevator, returns to the initial re-detection if the elevator is not in the stop state, and performs the next detection if the elevator is in the stop state;
s4: the detection and identification device detects and identifies that the elevator is in a stop state and the elevator door is in a closed state,
when the elevator is in a stop state, light curtain detection and identification are carried out;
s5: the detection and identification device detects and identifies whether the signal received by the light curtain infrared receiver is in a blocked state, if the light curtain infrared receiver identifies that the light curtain is in an unblocked state, the light curtain has no problem,
if the light curtain infrared receiver identifies that the light curtain is in a shielded state, the light curtain has a problem;
s6: the detection and identification device detects, identifies and confirms that the elevator is in a stop state, the elevator door is in a closed state, the elevator is in the stop state, the car control end controls the light curtain infrared emitter to stop emitting the light curtain, the detection and identification device carries out secondary identification on the light curtain, if the light curtain infrared receiver identifies that the light curtain is in a shielded state, the light curtain has no problem, and if the light curtain infrared receiver identifies that the light curtain is not in the shielded state, the light curtain has a problem.
3. The elevator light curtain failure self-checking method and device according to claim 1, characterized in that the light curtain infrared emitter and the light curtain infrared receiver are both electrically connected to the car control end.
4. The elevator light curtain failure self-checking method and device according to claim 1, characterized in that the light curtain infrared emitter and the light curtain infrared receiver are both electrically connected to the detection and identification device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119342.5A CN112938718A (en) | 2021-01-28 | 2021-01-28 | Elevator light curtain failure self-checking method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110119342.5A CN112938718A (en) | 2021-01-28 | 2021-01-28 | Elevator light curtain failure self-checking method and device |
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| Publication Number | Publication Date |
|---|---|
| CN112938718A true CN112938718A (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110119342.5A Pending CN112938718A (en) | 2021-01-28 | 2021-01-28 | Elevator light curtain failure self-checking method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246608A (en) * | 2022-03-22 | 2022-10-28 | 菱王电梯有限公司 | Elevator, control method, and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150360912A1 (en) * | 2013-03-18 | 2015-12-17 | Kone Corporation | Elevator, light curtain for monitoring the opening of a moving door of a floor level and/or the opening of a moving door of an elevator car, and method for giving a door-open command or a door-close command in an elevator |
| CN105502119A (en) * | 2016-01-18 | 2016-04-20 | 广州广日电梯工业有限公司 | Elevator light curtain failure self-inspection method and device |
| CN205346547U (en) * | 2016-01-18 | 2016-06-29 | 广州广日电梯工业有限公司 | Elevator light curtain inefficacy self -detection device |
| CN105775946A (en) * | 2016-05-25 | 2016-07-20 | 广州日滨科技发展有限公司 | Elevator control system and method |
-
2021
- 2021-01-28 CN CN202110119342.5A patent/CN112938718A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150360912A1 (en) * | 2013-03-18 | 2015-12-17 | Kone Corporation | Elevator, light curtain for monitoring the opening of a moving door of a floor level and/or the opening of a moving door of an elevator car, and method for giving a door-open command or a door-close command in an elevator |
| CN105502119A (en) * | 2016-01-18 | 2016-04-20 | 广州广日电梯工业有限公司 | Elevator light curtain failure self-inspection method and device |
| CN205346547U (en) * | 2016-01-18 | 2016-06-29 | 广州广日电梯工业有限公司 | Elevator light curtain inefficacy self -detection device |
| CN105775946A (en) * | 2016-05-25 | 2016-07-20 | 广州日滨科技发展有限公司 | Elevator control system and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115246608A (en) * | 2022-03-22 | 2022-10-28 | 菱王电梯有限公司 | Elevator, control method, and storage medium |
| CN115246608B (en) * | 2022-03-22 | 2024-01-30 | 菱王电梯有限公司 | Elevator, control method, and storage medium |
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Application publication date: 20210611 |
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| RJ01 | Rejection of invention patent application after publication |