CN114852811A - Safety identification method and safety identification device in elevator shaft - Google Patents
Safety identification method and safety identification device in elevator shaft Download PDFInfo
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- CN114852811A CN114852811A CN202210494957.0A CN202210494957A CN114852811A CN 114852811 A CN114852811 A CN 114852811A CN 202210494957 A CN202210494957 A CN 202210494957A CN 114852811 A CN114852811 A CN 114852811A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/02—Position or depth indicators
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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
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Abstract
The invention discloses a safety identification method and a safety identification device in an elevator shaft, which are applied to an elevator control system, wherein the elevator control system comprises a laser projection device, the laser projection device is electrically connected with an elevator main control, and the method comprises the following steps: generating a first projection control instruction; controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction; judging whether a shutdown condition is triggered; and under the condition that the shutdown condition is triggered, generating a shutdown control instruction, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction. The existing safety identification method is improved, the traditional method adopting physical identification is replaced by the method adopting virtual identification, and particularly, an additional laser projection device is configured in an elevator control system, so that the area where the safety risk avoiding space is located is clearly and reliably identified, the safety is improved, the technical staff can conveniently check the safety, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of elevator control, in particular to a safety identification method in an elevator shaft and a safety identification device in the elevator shaft.
Background
The elevator is used as an essential indoor vehicle in people's daily life, is widely applied to people's life, and people depend on the elevator to move up and down in modern buildings, so that the normal operation of the elevator is very important to people's daily life.
When the elevator breaks down, often in elevator car or when the relevant problem can't be solved in the computer lab, need technical staff to go to the well in carry out fault handling, for example through getting into sedan-chair top or well pit to the realization is to the processing of elevator trouble, and technical staff is in high altitude construction or operation in the narrow and small space this moment, consequently has certain personal safety risk.
In order to ensure the personal safety of the technicians, the safety identification of the car roof is required to be set in relevant safety regulations so as to ensure that each technician can see the identification when entering the car roof. In order to meet the requirement, elevator manufacturers often post corresponding safety signs in an eye-catching position to achieve the reminding effect. However, in the practical application process, technicians find that the existing security identification posting method has at least the following technical problems:
the car top plate is provided with the reinforcing ribs, so that the surface of the car top plate is uneven, and a conventional mark is difficult to further add on the car top plate, so that the requirement cannot be met; the pit has the problem of surface roughness, easy soaking, humidity etc. consequently leads to the safety sign setting of setting unstable, drop easily and damage etc. still can't satisfy the demand.
Disclosure of Invention
In order to solve the technical problems in the prior art, embodiments of the present invention provide a method for identifying safety in an elevator shaft, in which an additional laser projection device is configured in an area where a safety risk avoiding space in the elevator shaft is located, so as to perform a corresponding projection operation on the safety risk avoiding space, thereby implementing clearer and more reliable safety identification, improving safety, and improving user experience.
In order to achieve the above object, an embodiment of the present invention provides a safety identification method in an elevator hoistway, which is applied to an elevator control system, where the elevator control system includes a laser projection device, and the laser projection device is electrically connected to an elevator main control, and the method includes: generating a first projection control instruction; controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction; judging whether a shutdown condition is triggered; and under the condition that the shutdown condition is triggered, generating a shutdown control instruction, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction.
Preferably, the laser projection device comprises a proximity sensing device, the method further comprising: before the first projection control instruction is generated, judging whether the proximity sensing device acquires proximity sensing information or not; and generating the first projection control instruction under the condition that the proximity sensing information is acquired.
Preferably, the laser projection device includes a shutdown trigger button, and the determining whether to trigger a shutdown condition includes: judging whether the shutdown trigger button is in a trigger state or not; determining a trigger shutdown condition when the shutdown trigger button is in the trigger state; or judging whether the execution time of the safety mark projection operation reaches a preset time threshold value or not; and determining to trigger a shutdown condition under the condition that the execution time reaches the preset time threshold.
Preferably, the method further comprises: obtaining the running state of an elevator; judging whether the elevator is in a preset abnormal state or not under the condition that the running state of the elevator is the maintenance state; judging whether the laser projection device is in an open state or not under the condition that the elevator is in the preset abnormal state; and under the condition that the laser projection device is in a shutdown state, generating a second projection control instruction, and controlling the laser projection device to execute the safety mark projection operation based on the second projection control instruction.
Preferably, the elevator control system further comprises an image acquisition device, the image acquisition device is matched with the laser projection device, and the method further comprises: after the proximity sensing information is acquired, acquiring image monitoring information based on the image acquisition device; judging whether a human body exists in front or not based on the image monitoring information; acquiring contour information of a human body when the human body exists in the front; determining human body position information based on the contour information; and generating the first projection control instruction based on the human body position information.
Correspondingly, the embodiment of the invention also provides a safety identification device in an elevator shaft, which is applied to an elevator control system, wherein the elevator control system comprises a laser projection device, the laser projection device is electrically connected with an elevator main control, and the device comprises: the first instruction generation unit is used for generating a first projection control instruction; the first control unit is used for controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction; the judging unit is used for judging whether a shutdown condition is triggered or not; and the second control unit is used for generating a shutdown control instruction under the condition that the shutdown condition is triggered, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction.
Preferably, the laser projection device comprises a proximity sensing device, the device further comprising a proximity sensing unit for: before the first projection control instruction is generated, judging whether the proximity sensing device acquires proximity sensing information or not; the first instruction generation unit is further to: and generating the first projection control instruction under the condition that the proximity sensing information is acquired.
Preferably, the laser projection device includes a shutdown trigger button, and the determination unit includes: the first judgment module is used for judging whether the shutdown trigger button is in a trigger state or not; the first determining module is used for determining a trigger shutdown condition under the condition that the shutdown trigger button is in the trigger state; or the second judgment module is used for judging whether the execution time of the safety mark projection operation reaches a preset time threshold value or not; and the second determining module is used for determining a trigger shutdown condition under the condition that the execution time reaches the preset time threshold.
Preferably, the apparatus further comprises a second instruction generating unit, configured to: obtaining the running state of an elevator; judging whether the elevator is in a preset abnormal state or not under the condition that the running state of the elevator is the maintenance state; judging whether the laser projection device is in an open state or not under the condition that the elevator is in the preset abnormal state; and under the condition that the laser projection device is in a shutdown state, generating a second projection control instruction, and controlling the laser projection device to execute the safety mark projection operation based on the second projection control instruction.
Preferably, the elevator control system further comprises an image acquisition device, the image acquisition device is matched with the laser projection device, the device further comprises an image processing unit, and the image processing unit is used for: after the proximity sensing information is acquired, acquiring image monitoring information based on the image acquisition device; judging whether a human body exists in front or not based on the image monitoring information; acquiring contour information of a human body when the human body exists in the front; determining human body position information based on the contour information; the first instruction generation unit is further to: and generating the first projection control instruction based on the human body position information.
Through the technical scheme provided by the invention, the invention at least has the following technical effects:
the existing safety identification method is improved, the traditional method adopting physical identification is replaced by the method adopting virtual identification, and particularly, an additional laser projection device is configured in an elevator control system, so that the area where the safety risk avoiding space is located is clearly and reliably identified, the safety is improved, the technical staff can conveniently check the safety, and the user experience is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
fig. 1 is a flowchart of a specific implementation of a method for identifying safety marks in an elevator shaft according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a laser projection operation in the method for identifying safety marks in an elevator shaft according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a laser projection operation performed by using a holographic laser projection device in the method for identifying safety marks in an elevator shaft according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a method for indicating heavy proximity in a safety marking in an elevator shaft according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a safety identification device in an elevator shaft according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
The terms "system" and "network" in embodiments of the present invention may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present invention. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, a and/or B, which may indicate: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified. In addition, it should be understood that the terms first, second, etc. in the description of the embodiments of the invention are used for distinguishing between the descriptions and are not intended to indicate or imply relative importance or order to be construed.
Referring to fig. 1, an embodiment of the present invention provides a method for identifying safety in an elevator hoistway, which is applied to an elevator control system, where the elevator control system includes a laser projection device, and the laser projection device is electrically connected to an elevator main control, and the method includes:
s10) generating a first projection control instruction;
s20) controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction;
s30) determining whether a shutdown condition is triggered;
s40) generating a shutdown control instruction under the condition that the shutdown condition is triggered, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction.
Referring to fig. 2, in one possible embodiment, a laser projection device is additionally configured in an elevator control system, and the laser projection device may be disposed in an area where a danger avoiding space needs to be disposed, such as the top of a car, the bottom of a hoistway, and the like, for example, the area may be determined according to relevant standards, for example, when the danger avoiding space at the top of the car and the bottom of the hoistway is determined, the area may be determined based on relevant regulations in chapter 5.2.5.7.1, 5.2.5.8.1, and the like in GB7588.1-2020, and an image projected by the additionally configured laser projection device can cover the corresponding area of the danger avoiding space.
Referring to fig. 3, in another possible embodiment, the laser projection device is a holographic laser projector, and the laser projection device may be a plurality of holographic laser projectors arranged at a plurality of different positions, and projects the laser to the area where the danger avoiding space is located to form stereoscopic projection information. Through adopting holographic laser projector, can generate more audio-visual three-dimensional safe identification information, compare in the plane safe identification information of two-dimentional, further improved the identifiability and the interference immunity of safe identification information, accord with technical staff's actual demand and the requirement of relevant standard more.
In the elevator running process, an elevator control system generates a first projection control instruction to control a laser projection device to execute corresponding safety identification projection operation, for example, corresponding images are projected to a danger avoiding space at the current position, in the projection process, the elevator control system judges whether a shutdown condition is triggered or not in real time, and generates a shutdown control instruction under the condition that the shutdown condition is triggered, and according to the shutdown control instruction, the laser projection device can be controlled to execute projection stopping operation, for example, switching to a dormant state or closing the laser projection device.
In the embodiment of the invention, the setting mode of the safety mark in the elevator shaft is improved, the special laser projection device is configured in the elevator control system, and the top of the car or the bottom of the shaft is projected by the laser projection device, so that the effective mark of the safety risk avoiding space in the elevator shaft is realized.
However, if the display state of the laser projection device is maintained all the time, the actual operation situation is not met, and the technician has practically few (compared with the total operation time of the elevator) accesses to the elevator shaft to repair or maintain the elevator, so in order to reduce energy consumption and prolong the service life of the laser projection device, in the embodiment of the invention, the laser projection device comprises a proximity sensing device, and the method further comprises the following steps: before the first projection control instruction is generated, judging whether the proximity sensing device acquires proximity sensing information or not; and generating the first projection control instruction under the condition that the proximity sensing information is acquired.
In a possible embodiment, the laser projection device further includes a proximity sensor, for example, an existing proximity sensor (infrared sensor, etc.) may be electrically connected to the laser projector to form the laser projection device, or the proximity sensor may be integrated with the laser projector to form the laser projection device, that is, the proximity sensor is also disposed near the danger avoiding space, when a person walks in, the proximity sensor acquires proximity sensing information, for example, at a certain time, the proximity sensor disposed in the pit acquires the proximity sensing information, so that a corresponding first projection control command is immediately generated, and the elevator control system immediately controls the laser projector disposed in the pit to perform a corresponding safety sign projection operation according to the first projection control command, so as to perform safety sign of the danger avoiding space for the technician.
Referring to fig. 4, in a possible embodiment, during the operation of the elevator, the proximity sensor detects that the current car is gradually close to the counterweight, so that corresponding proximity sensing information is immediately output, and after the elevator control system acquires the proximity sensing information related to the counterweight, a corresponding first projection control command is immediately generated, for example, a laser projection device projects corresponding safety identification information, for example, safety identification information prompting that "the counterweight is close to" is provided on a hoistway wall in front of the current car according to the first projection control command, so as to prompt a technician to pay attention to personal safety.
In the practical application process, technicians find that after the technicians enter the top of the lift car or the pit, the safety signs of the laser projection devices can play a role in safety prompt, but the obvious brightness of the safety signs also causes certain trouble for troubleshooting or maintenance of the technicians.
In order to solve the above technical problem, in an embodiment of the present invention, the laser projection apparatus includes a shutdown trigger button, and the determining whether to trigger a shutdown condition includes: judging whether the shutdown trigger button is in a trigger state or not; determining a trigger shutdown condition when the shutdown trigger button is in the trigger state; or judging whether the execution time of the safety mark projection operation reaches a preset time threshold value or not; and determining to trigger a shutdown condition under the condition that the execution time reaches the preset time threshold.
In a first possible embodiment, a shutdown trigger button is arranged on the laser projection device, and after a technician determines the position of the danger avoiding space according to the safety mark prompted by the laser projection device, the shutdown trigger button is pressed to shut down the laser projection device for better overhaul or maintenance operation.
In a second possible implementation manner, after the laser projection device starts to perform the safety sign projection operation, a countdown is automatically performed, for example, after a countdown time (i.e., the execution time of the safety sign projection operation) reaches a preset time threshold, a shutdown condition is determined to be triggered, and at this time, the elevator control system automatically generates a corresponding shutdown control command to control the laser projection device to shutdown.
In the embodiment of the invention, the safety mark projection operation of the laser projection device is closed after the safety prompt is determined for the technical personnel according to the actual requirements of the technical personnel, so that the best working environment is provided for the technical personnel on the basis of the safety prompt, the user experience is improved, and the actual requirements are met.
On the basis of the intelligent closing of the laser projection device, technicians find that the technicians can forget the position of the danger-avoiding space of the elevator after a long time due to the fact that the technicians are put into actual maintenance or service of the elevator, and at the moment, if the elevator breaks down, such as top-rushing or bottom-squatting faults, the personal safety of the technicians can be threatened again.
In order to solve the above technical problem, in an embodiment of the present invention, the method further includes: obtaining the running state of an elevator; judging whether the elevator is in a preset abnormal state or not under the condition that the running state of the elevator is the maintenance state; judging whether the laser projection device is in an open state or not under the condition that the elevator is in the preset abnormal state; and under the condition that the laser projection device is in a shutdown state, generating a second projection control instruction, and controlling the laser projection device to execute the safety mark projection operation based on the second projection control instruction.
In a possible implementation manner, after the elevator control system controls the laser projection device to close and display, the running state of the elevator is continuously monitored in real time, for example, at another moment, the elevator control system determines that the elevator is in an overhaul state at present, so that a technician is determined to be possibly present in an elevator car or a pit, and at this moment, it is monitored that the elevator has a slide fault (namely, a preset abnormal state), so that whether the laser projection device is in an open state or not is automatically judged, for example, the laser projection device is in a close state at present, so that a second projection control instruction is immediately generated, the laser projection device is controlled to immediately execute corresponding safety identification projection operation, and at this moment, the technician immediately goes to a corresponding safety danger avoiding space to perform danger avoiding operation according to the safety identification of the emergency prompt.
In the embodiment, the service state of the laser projection device and the state of the elevator are monitored in real time in the actual running process of the elevator, even if the laser projection device is optimized in use and is shut down in advance, once the elevator is monitored to be in an abnormal state, the laser projection device is immediately controlled to be opened and the projection operation of the safety identification is carried out, so that the emergency identification is realized, the technical effect of guaranteeing the personal safety of technicians under any dangerous condition is realized, and the highest safety guarantee capability is realized on the basis of realizing the optimal energy consumption and the highest service life of the laser projection device.
Further, in the practical application process, in order to further improve the personal safety of the technical staff, the technical staff expects that the laser projection device can keep the indication function of the laser projection device to the maximum when the technical staff enters the top of the car or the pit, and meanwhile, the practical maintenance or the maintenance operation of the technical staff is not influenced.
In an embodiment of the present invention, the elevator control system further includes an image collecting device, the image collecting device is matched with the laser projection device, and the method further includes: after the proximity sensing information is acquired, acquiring image monitoring information based on the image acquisition device; judging whether a human body exists in front or not based on the image monitoring information; acquiring contour information of a human body when the human body exists in the front; determining human body position information based on the contour information; and generating the first projection control instruction based on the human body position information.
In a possible embodiment, an image capturing device is further configured in the elevator control system, and the image capturing device can be configured in one-to-one correspondence with each laser projection device and is arranged near the corresponding laser projection device. In the practical application process, the image acquisition device is in a dormant state by default, the elevator control system monitors whether the proximity sensing information of the proximity sensor is acquired in real time, acquires the image monitoring information based on the image acquisition device under the condition that the proximity sensing information is determined to be acquired, and then judges whether a human body exists in front of the elevator based on the image monitoring information.
For example, in one embodiment, the image monitoring device determines that there is no human body in front of the elevator car according to the image monitoring information, that is, the proximity sensor is shielded by other obstacles, such as dust, stones, animals, and the like, and therefore does not generate a corresponding first projection control command, at this time, the elevator control system may generate a corresponding alarm message to prompt a technician to maintain the proximity sensor, so as to ensure the effectiveness of the use of the proximity sensor.
In another embodiment, the image monitoring device determines that a human body exists in front according to the image monitoring information, so that contour information of the human body is immediately obtained, further determines human body position information according to the human body contour information, and judges whether the human body is located in an area where the danger avoiding space is located according to the human body position information; in the second case, a plurality of human bodies exist in front, and at least one human body does not exist in the region where the danger avoiding space is located, so that the first projection control instruction is also immediately generated; in a third case, the image monitoring device determines that all currently detected human bodies are located in the region where the risk avoiding space is located, and therefore the first projection control instruction is not generated under any condition.
In the embodiment of the invention, the image acquisition device is adopted to further intelligently control the laser projection device, so that on one hand, the approach sensing information acquired by the approach sensor can be verified, the false triggering probability of the laser projection device is reduced, and the control accuracy is improved; on the other hand can carry out more intelligent control to laser projection arrangement's projection according to human position to on the basis of realizing more intelligent control, higher projection time account for ratio, effectively avoid the influence to technical staff's normal work, improved user experience, satisfied actual demand, improved the security.
The safety identification device in an elevator shaft according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 5, based on the same inventive concept, an embodiment of the present invention provides a safety identification device in an elevator hoistway, which is applied to an elevator control system, where the elevator control system includes a laser projection device, the laser projection device is electrically connected to an elevator main control, and the device includes: the first instruction generation unit is used for generating a first projection control instruction; the first control unit is used for controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction; the judging unit is used for judging whether a shutdown condition is triggered or not; and the second control unit is used for generating a shutdown control instruction under the condition that the shutdown condition is triggered, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction.
In an embodiment of the invention, the laser projection device comprises a proximity sensing device, the device further comprising a proximity sensing unit for: before the first projection control instruction is generated, judging whether the proximity sensing device acquires proximity sensing information or not; the first instruction generation unit is further to: and generating the first projection control instruction under the condition that the proximity sensing information is acquired.
In an embodiment of the present invention, the laser projection apparatus includes a shutdown trigger button, and the determination unit includes: the first judgment module is used for judging whether the shutdown trigger button is in a trigger state or not; the first determining module is used for determining a trigger shutdown condition under the condition that the shutdown trigger button is in the trigger state; or the second judgment module is used for judging whether the execution time of the safety mark projection operation reaches a preset time threshold value or not; and the second determining module is used for determining a trigger shutdown condition under the condition that the execution time reaches the preset time threshold.
In an embodiment of the present invention, the apparatus further includes a second instruction generating unit, where the second instruction generating unit is configured to: obtaining the running state of an elevator; judging whether the elevator is in a preset abnormal state or not under the condition that the running state of the elevator is the maintenance state; judging whether the laser projection device is in an open state or not under the condition that the elevator is in the preset abnormal state; and under the condition that the laser projection device is in a shutdown state, generating a second projection control instruction, and controlling the laser projection device to execute the safety mark projection operation based on the second projection control instruction.
In an embodiment of the present invention, the elevator control system further includes an image acquisition device, the image acquisition device is matched with the laser projection device, the device further includes an image processing unit, and the image processing unit is configured to: after the proximity sensing information is acquired, acquiring image monitoring information based on the image acquisition device; judging whether a human body exists in front or not based on the image monitoring information; acquiring contour information of a human body when the human body exists in the front; determining human body position information based on the contour information; the first instruction generation unit is further to: and generating the first projection control instruction based on the human body position information.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A safety identification method in an elevator shaft is applied to an elevator control system, and is characterized in that the elevator control system comprises a laser projection device which is electrically connected with an elevator master control, and the method comprises the following steps:
generating a first projection control instruction;
controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction;
judging whether a shutdown condition is triggered;
and under the condition that the shutdown condition is triggered, generating a shutdown control instruction, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction.
2. The method of claim 1, wherein the laser projection device comprises a proximity sensing device, the method further comprising:
before the first projection control instruction is generated, judging whether the proximity sensing device acquires proximity sensing information or not;
and generating the first projection control instruction under the condition that the proximity sensing information is acquired.
3. The method of claim 1, wherein the laser projection device includes a shutdown trigger button, and wherein determining whether a shutdown condition is triggered comprises:
judging whether the shutdown trigger button is in a trigger state or not;
determining a trigger shutdown condition when the shutdown trigger button is in the trigger state; or
Judging whether the execution time of the safety mark projection operation reaches a preset time threshold value or not;
and determining to trigger a shutdown condition under the condition that the execution time reaches the preset time threshold.
4. The method of claim 1, further comprising:
obtaining the running state of an elevator;
judging whether the elevator is in a preset abnormal state or not under the condition that the running state of the elevator is the maintenance state;
judging whether the laser projection device is in an open state or not under the condition that the elevator is in the preset abnormal state;
and under the condition that the laser projection device is in a shutdown state, generating a second projection control instruction, and controlling the laser projection device to execute the safety mark projection operation based on the second projection control instruction.
5. The method of claim 2, wherein the elevator control system further comprises an image capture device disposed in mating relation with the laser projection device, the method further comprising:
after the proximity sensing information is acquired, acquiring image monitoring information based on the image acquisition device;
judging whether a human body exists in front or not based on the image monitoring information;
acquiring contour information of a human body when the human body exists in the front;
determining human body position information based on the contour information;
and generating the first projection control instruction based on the human body position information.
6. The utility model provides a safety identification device in elevator well, is applied to elevator control system, its characterized in that, elevator control system includes laser projection device, laser projection device is connected with elevator master control electricity, the device includes:
the first instruction generation unit is used for generating a first projection control instruction;
the first control unit is used for controlling the laser projection device to execute safety mark projection operation based on the first projection control instruction;
the judging unit is used for judging whether a shutdown condition is triggered or not;
and the second control unit is used for generating a shutdown control instruction under the condition that the shutdown condition is triggered, and controlling the laser projection device to execute projection stopping operation based on the shutdown control instruction.
7. The apparatus of claim 6, wherein the laser projection device comprises a proximity sensing device, the apparatus further comprising a proximity sensing unit for:
before the first projection control instruction is generated, judging whether the proximity sensing device acquires proximity sensing information or not;
the first instruction generation unit is further to:
and generating the first projection control instruction under the condition that the proximity sensing information is acquired.
8. The apparatus of claim 6, wherein the laser projection device comprises a shutdown trigger button, and the determination unit comprises:
the first judgment module is used for judging whether the shutdown trigger button is in a trigger state;
the first determining module is used for determining a trigger shutdown condition under the condition that the shutdown trigger button is in the trigger state; or
The second judgment module is used for judging whether the execution time of the safety mark projection operation reaches a preset time threshold value or not;
and the second determining module is used for determining a trigger shutdown condition under the condition that the execution time reaches the preset time threshold.
9. The apparatus according to claim 6, wherein the apparatus further comprises a second instruction generating unit, and the second instruction generating unit is configured to:
obtaining the running state of an elevator;
judging whether the elevator is in a preset abnormal state or not under the condition that the running state of the elevator is the maintenance state;
judging whether the laser projection device is in an open state or not under the condition that the elevator is in the preset abnormal state;
and under the condition that the laser projection device is in a shutdown state, generating a second projection control instruction, and controlling the laser projection device to execute the safety mark projection operation based on the second projection control instruction.
10. The device of claim 7, wherein the elevator control system further comprises an image capture device disposed in alignment with the laser projection device, the device further comprising an image processing unit configured to:
after the proximity sensing information is acquired, acquiring image monitoring information based on the image acquisition device;
judging whether a human body exists in front or not based on the image monitoring information;
acquiring contour information of a human body when the human body exists in the front;
determining human body position information based on the contour information;
the first instruction generation unit is further to:
and generating the first projection control instruction based on the human body position information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210494957.0A CN114852811A (en) | 2022-05-07 | 2022-05-07 | Safety identification method and safety identification device in elevator shaft |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210494957.0A CN114852811A (en) | 2022-05-07 | 2022-05-07 | Safety identification method and safety identification device in elevator shaft |
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| CN114852811A true CN114852811A (en) | 2022-08-05 |
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| CN202210494957.0A Pending CN114852811A (en) | 2022-05-07 | 2022-05-07 | Safety identification method and safety identification device in elevator shaft |
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| JP2018188292A (en) * | 2017-05-11 | 2018-11-29 | 三菱電機ビルテクノサービス株式会社 | Projection device inside elevator hoistway |
| CN109205421A (en) * | 2017-07-03 | 2019-01-15 | 奥的斯电梯公司 | elevator maintenance space projection system |
| JP2019077525A (en) * | 2017-10-23 | 2019-05-23 | 三菱電機ビルテクノサービス株式会社 | Work safety device in elevator pit |
| CN212434203U (en) * | 2020-08-25 | 2021-01-29 | 广州广杰网络科技有限公司 | Automatic advertisement projection controller for parking lot |
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| US20020105620A1 (en) * | 2000-12-19 | 2002-08-08 | Lorna Goulden | Projection system |
| US20160142690A1 (en) * | 2014-11-14 | 2016-05-19 | Coretronic Corporation | Projection device and projection system having the same |
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