CN114212650A - Elevator detection updating method, computer equipment and storage medium - Google Patents
Elevator detection updating method, computer equipment and storage medium Download PDFInfo
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- CN114212650A CN114212650A CN202111542028.4A CN202111542028A CN114212650A CN 114212650 A CN114212650 A CN 114212650A CN 202111542028 A CN202111542028 A CN 202111542028A CN 114212650 A CN114212650 A CN 114212650A
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- infrared
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- light curtain
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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Abstract
The embodiment of the invention provides a detection updating method, computer equipment and a medium for an elevator, wherein the method comprises the following steps: through controlling infrared emitter along the edge of the car door of elevator to infrared receiver transmission infrared signal, install respectively infrared emitter, infrared receiver is installed to the opposite side in one side of the car door of elevator, if infrared receiver receives infrared signal, then the first intensity of inquiry infrared signal, then whether there is the barrier according to first intensity update light curtain threshold value, light curtain threshold value is used for detecting the edge of the car door of elevator. In the embodiment of the invention, the light curtain threshold value is synchronously updated along with the light attenuation of the infrared transmitter aiming at the condition that the infrared transmitter generates the light attenuation along with the increase of the service time of the elevator, so that the condition that the elevator cannot be closed due to misjudgment of obstacles existing between the elevator car doors when the infrared receiver still keeps the original light curtain threshold value after the infrared transmitter is attenuated is avoided, and the service efficiency of the elevator is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of elevators, in particular to a detection updating method of an elevator, computer equipment and a storage medium.
Background
With the development of modern cities, elevators are also widely used in various high-rise buildings as a passenger carrying tool. When an elevator passenger enters an elevator car door to open in the process of elevator running; when an elevator passenger leaves the elevator car, the elevator car door is closed; the elevator car doors are kept closed during the ascending and descending of the elevator to prevent dangerous situations such as passengers falling and being clamped by the elevator car doors. Therefore, the close connection between the opening and closing state of the elevator car door and the safety of passengers is realized, so that the state of the elevator car door is monitored when the passengers board the elevator, the opening and closing of the elevator car door is adjusted according to the actions of the passengers, and the passengers are prevented from being clamped or falling into the elevator shaft, which is favorable for improving the safety of elevator boarding.
The current technology for monitoring the open and close state of the elevator car door and preventing passengers from being clamped mainly comprises an elevator light curtain technology. The elevator light curtain technology is through setting up a set of infra-red transmitter, a set of infrared receiver respectively on elevator car door both sides, a plurality of transmitting light points in every group infra-red transmitter and a plurality of receiving points one-to-one in every group infrared receiver, and each receiving point judges whether have between the elevator car door to shelter from and monitors the open and close state of elevator car door according to judging the relation of received infrared signal power and predetermined intensity threshold value among the infrared receiver. However, as the service time increases, the transmitting tubes in the infrared transmitter installed on the elevator car doors will have different light attenuations, and the light attenuation degrees of different transmitting tubes are different, which will cause that when judging whether there is a shelter between the elevator car doors according to the infrared signal intensity received by the corresponding receiving points, the infrared signal intensity received by the corresponding receiving points is weakened because the infrared signal intensity transmitted by the transmitting tubes is weakened, so that the elevator judges that there is a shelter between the elevator car doors, and the elevator car doors are kept in an open state and cannot be closed, thereby affecting the normal operation of the elevator and reducing the use efficiency of the elevator.
Aiming at the problem of attenuation of a transmitting tube of an elevator light curtain, the currently proposed optimization method mainly comprises the steps of setting an intensity threshold value used for judging the shielding of an elevator car door at each receiving point of an infrared receiver to be smaller before an elevator leaves a factory, so that after the infrared transmitter transmits light spots to be attenuated, the intensity of infrared signals received by the receiving points is still larger than the intensity threshold value when the elevator car door is not shielded, and the situation that the elevator car door is not shielded is judged to be shielded, and the elevator operation is not influenced. However, there is a safety risk in setting the intensity threshold value at the receiving point to be smaller when the elevator leaves the factory, for example, at the initial period when the elevator is put into operation, the emitted light is not attenuated by light, and at this time, when the palm of the passenger is between the elevator cars, because the palm is transparent, the intensity of the infrared signal emitted by the emitting light spot is still greater than the intensity threshold value when the infrared signal reaches the receiving point by penetrating the palm, which increases the risk of the passenger riding the elevator.
Disclosure of Invention
The embodiment of the invention provides a detection updating method of an elevator, computer equipment and a storage medium, which aim to solve the problem that barriers exist between elevator misjudgment car doors due to the fact that an infrared transmitter generates light attenuation in the using process and a light curtain threshold value is kept unchanged.
In a first aspect, an embodiment of the present invention provides a detection updating method for an elevator, including:
controlling the infrared transmitter to transmit an infrared signal to the infrared receiver along an edge of a car door of the elevator;
if the infrared receiver receives the infrared signal, inquiring first intensity of the infrared signal;
updating a light curtain threshold for detecting whether an obstacle is present at an edge of a car door of the elevator according to the first intensity.
In a second aspect, an embodiment of the present invention further provides a computer device, where the computer device includes:
one or more processors;
a memory for storing one or more programs,
when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the method for detecting an update of an elevator as described in the first aspect.
In a third aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for detecting and updating an elevator according to the first aspect is implemented.
In the embodiment of the invention, the infrared receiver and the infrared transmitter are respectively installed at two sides of the elevator car door, the infrared transmitter is controlled to transmit the infrared signal to the infrared receiver, when the infrared receiver receives the infrared signal, the first intensity of the infrared signal is inquired, and the light curtain threshold value for judging whether the barrier exists between the elevator car doors is updated according to the first intensity, so that even if the infrared transmitter generates light attenuation along with the increase of the use time of the elevator, when the intensity of the transmitted infrared signal is attenuated, the light curtain at the infrared receiver changes along with the light attenuation of the infrared transmitter, the condition that the elevator cannot be closed due to the fact that the barrier exists between the elevator car doors is judged by mistake when the infrared receiver still maintains the original light curtain threshold value after the infrared transmitter is attenuated is avoided, and the use efficiency of the elevator is improved. Compared with a method for reserving attenuation allowance at an infrared receiver for infrared transmitter light attenuation when an elevator leaves a factory, namely reducing an initial light curtain threshold value obtained through calculation originally so as to solve the problem that the elevator cannot be closed after the infrared transmitter is subjected to light attenuation, in the embodiment of the invention, the change of the light curtain threshold value of the infrared receiver is kept synchronous with the change of the infrared signal intensity transmitted by the infrared transmitter, so that the situation that passengers or goods are clamped due to the fact that the infrared transmitter does not have light attenuation or the initial stage of light attenuation caused by the fact that the initial light curtain threshold value is reduced is avoided, when obstacles exist among elevator car doors, the infrared receiver still judges that no obstacle exists among the elevator car doors according to the reduced light curtain threshold value, and the safety of elevator operation is improved.
Drawings
Fig. 1 is a flowchart of a detection updating method for an elevator according to an embodiment of the present invention;
fig. 2 is a flowchart of a detection updating method for an elevator according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a detection and update device of an elevator according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a computer device according to a fourth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a detection and update method for an elevator according to an embodiment of the present invention, which is applicable to a case where an infrared transmitter generates light attenuation during use and a light curtain threshold remains unchanged, so that an obstacle exists between car doors of the elevator, where the method may be executed by a detection and update apparatus for an elevator, where the detection and update apparatus for an elevator may be implemented by software and/or hardware, and may be configured in a computer device, and specifically includes the following steps:
and step 101, controlling an infrared transmitter to transmit an infrared signal to an infrared receiver along the edge of a car door of the elevator.
In this embodiment, an infrared transmitter is installed on one side of a car door of the elevator, and an infrared receiver is installed on the other side of the car door of the elevator, and the infrared transmitter and the infrared receiver jointly form an elevator light curtain. 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. Usually, there may be 32 or 16 transmitting tubes in the infrared transmitters that make up the elevator light curtain, and there are the same number of receiving tubes corresponding to the transmitting tubes in the corresponding infrared receivers. When the elevator light curtain works, the transmitting tubes can be opened from top to bottom in sequence under the control of an elevator control system to transmit infrared signals, the receiving tube is responsible for receiving the infrared signals transmitted by the corresponding transmitting tubes, so that a light curtain composed of intensive infrared signals is formed in the middle of the elevator car door, if one beam of infrared signals in the light curtain is shielded in the process of closing the elevator car door, the infrared signals cannot be received or a threshold value which is smaller than the intensity of the received infrared signals initially configured to the receiving tubes is received at the receiving tube for receiving the beam of infrared signals, and the threshold value is a light curtain threshold value, so that the elevator control system can judge that obstacles exist between the car doors, stop closing the car doors and reopen the car doors, and accordingly, the safety protection effect of preventing passengers from clamping and the like is achieved.
However, as the working time of the infrared transmitter increases, the infrared transmitting tube in the infrared transmitter generates light attenuation, so that the intensity of the transmitted infrared signal is gradually reduced along with the time, and in the process of continuous reduction, even if no shielding exists between the car doors of the elevator, the situation that the infrared signal received by the receiving tube is smaller than the light curtain threshold value, the elevator control system judges that an obstacle exists between the car doors incorrectly, and the obstacle forms shielding on a transmission path of the infrared signal between the transmitting tube and the receiving tube, so that the car doors can be opened under the consideration of safety. And because the process of the light attenuation of the infrared transmitting tube is irreversible under the condition of no external force intervention, the intensity of the infrared signal received by the receiving tube is smaller and smaller, so that the car door is in a state of being opened all the time, and the use efficiency of the elevator is influenced.
In this embodiment, it is proposed to detect and update the light curtain threshold value for the phenomenon, so that the light curtain threshold value of the receiving tube in the infrared receiver changes with the light attenuation change of the transmitting tube of the infrared transmitter, thereby avoiding the above-mentioned erroneous judgment of the elevator control system as to whether an obstacle exists between the car doors.
In the embodiment, the light curtain threshold is detected and updated, and the infrared transmitter can be controlled to transmit an infrared signal to the infrared receiver along the edge of the car door of the elevator.
In one embodiment of the invention, the infrared transmitter is not controlled to emit infrared signals along the car door at all times, but is controlled to emit infrared signals to update the light curtain threshold when the elevator is in the learn mode.
In this embodiment, the learning mode may be started when the running time of the elevator exceeds a preset time threshold, where the learning mode indicates that the elevator enters a state in which the light curtain threshold is updated. If the closing of the car door of the elevator is detected in the learning mode, the infrared transmitter is driven to transmit an infrared signal to the infrared receiver along the edge of the car door of the elevator. The detection period can be associated in this embodiment with the standby state of the elevator, since the standby state can be periodic and the car door is closed when the elevator is in the standby state, in accordance with the procedure in this embodiment of detecting the closing of the car door in the learning mode and then driving the infrared transmitter to emit the infrared signal. In this embodiment, when the elevator is in the standby state, no passenger is in the car, and then when the light curtain threshold value is updated, the influence from people is less, which is helpful for improving the accuracy of updating the light curtain threshold value.
In one embodiment of the present invention, the infrared transmitter includes a plurality of transmitting tubes and the infrared receiver includes a plurality of receiving tubes as described above, so driving the infrared transmitter to transmit an infrared signal to the infrared receiver along the edge of the car door of the elevator in this embodiment actually appears as:
the power is set to be the maximum value for each transmitting tube in the infrared transmitter, if the power is not uniformly set to be the maximum value, the updating of the light curtain threshold value is inaccurate, when the transmitting tubes transmit infrared signals at the maximum power, even if the intensity of the infrared signals penetrating through a thin obstacle and reaching the receiving tube is still larger than the light curtain threshold value, the car door of the elevator is normally closed at the moment, so that the obstacle between the car doors is clamped, if the obstacle is the palm of a passenger, the passenger is clamped, and personal injury is caused to the passenger in the process of ascending or descending of the elevator car.
In one embodiment of the present invention, since a plurality of light sources other than the infrared emitter exist inside the elevator car, and the light beams emitted by these light sources, if received by the infrared receiver, will affect the update of the light curtain threshold, for example, the infrared receiver will receive the energy of the infrared signal emitted by the infrared emitter and the light beams emitted by other light sources, and recognize the energy of the light beams emitted by the infrared emitter uniformly, so that the intensity of the infrared signal received by the infrared receiver is greater than the intensity of the infrared signal without the influence of other light sources, resulting in the updated light curtain threshold being greater than the light curtain threshold that should be updated actually without the influence of other light sources.
Therefore, in this embodiment, after entering the learning mode, it is also possible to query other light sources in the elevator car except the infrared emitter, and turn off the other light sources in updating the light curtain threshold, for example, turn off the other light sources before preparing to drive the infrared emitter to emit the infrared signal, and then resume the other light sources at the end of updating the light curtain threshold. After the standby is finished, the elevator is put into normal use, and the light source in the car can be used for providing lighting service for passengers.
In this embodiment, the infrared receiver in this embodiment may receive the infrared signal, where each receiving tube in the infrared receiver receives the infrared signal sent by the corresponding transmitting tube, and after receiving the infrared signal, the receiving tube may first query the intensity of the received infrared signal. In this embodiment, the photoelectric conversion circuit may be disposed at the receiving tube, and the first intensity of the infrared signal may be obtained by converting a current value or a voltage value.
And 103, updating a light curtain threshold value according to the first intensity, wherein the light curtain threshold value is used for detecting whether an obstacle exists on the edge of a car door of the elevator.
In this embodiment, after the first intensity of the infrared signal received by the receiving tube is obtained through querying, the current light curtain threshold may be updated according to the first intensity, because the current light curtain threshold is obtained through the last update, a difference exists between the intensity of the infrared signal at the last update and the intensity of the current infrared signal, and the difference is an attenuation value of the intensity of the infrared signal due to light attenuation occurring in the transmitting tube during a time period from the last update of the light curtain threshold to the current update of the light curtain threshold.
In one embodiment of the present invention, the specific process of updating the light curtain threshold according to the first intensity is as follows:
and when the last updated light curtain threshold value is obtained, the second intensity of the infrared signal emitted by the infrared emitter is the same as the first intensity in nature and effect, namely the second intensity is equivalent to the first intensity used for updating the light curtain threshold value when the light curtain threshold value is updated last time.
In one embodiment of the present invention, the obtaining of the second intensity may be obtaining the second intensity of the infrared signal emitted by the emission tube at the time of the last updated light curtain threshold, that is, obtaining the second intensity may obtain, for the emission tube in each infrared emitter, the second intensity of each emission tube for the last updated light curtain threshold.
Then, a difference value between the second intensity and the current light curtain threshold is calculated as an attenuation difference, the attenuation difference may be set in this embodiment by considering attenuation of intensity formed on a path of the infrared signal transmitted from the transmitting tube to the receiving tube at the beginning of the elevator operation and attenuation of a conventional infrared signal caused by factors other than the transmitting tube and the transmission path in the engineering practice, and when the initial light curtain threshold is set, the initial light curtain threshold is a value obtained by subtracting the attenuation difference from the intensity of the infrared signal initially transmitted by the transmitting tube.
For example, in this embodiment, a transmitting tube may be selected, the second intensity of the transmitting tube is represented by w1, and then the current light curtain threshold of the receiving tube matched with the transmitting tube is represented by L1, and the attenuation difference in this embodiment may be represented as w 1-L1.
And after the attenuation difference is obtained through calculation, the difference value between the first intensity and the attenuation difference can be calculated and used as a new light curtain threshold value. In this embodiment, the difference obtained by subtracting the attenuation difference from the first intensity indicates that the attenuation difference initially set for the light curtain threshold calculation is subtracted from the intensity of the current attenuated infrared signal, so that a new light curtain threshold in the current attenuation state can be obtained.
In an embodiment of the present invention, since each transmitting tube may have the same intensity of the infrared signal transmitted when it is shipped from the factory, but it is difficult to perform synchronous attenuation during the light attenuation process, in this embodiment, a difference between the first intensity and the attenuation difference may be calculated for each transmitting tube as a new light curtain threshold of the receiving tube matched with the transmitting tube.
In the embodiment of the invention, the infrared receiver and the infrared transmitter are respectively installed at two sides of the elevator car door, the infrared transmitter is controlled to transmit the infrared signal to the infrared receiver, when the infrared receiver receives the infrared signal, the first intensity of the infrared signal is inquired, and the light curtain threshold value for judging whether the barrier exists between the elevator car doors is updated according to the first intensity, so that even if the infrared transmitter generates light attenuation along with the increase of the use time of the elevator, when the intensity of the transmitted infrared signal is attenuated, the light curtain at the infrared receiver changes along with the light attenuation of the infrared transmitter, the condition that the elevator cannot be closed due to the fact that the barrier exists between the elevator car doors is judged by mistake when the infrared receiver still maintains the original light curtain threshold value after the infrared transmitter is attenuated is avoided, and the use efficiency of the elevator is improved. Compared with a method for reserving attenuation allowance at an infrared receiver for infrared transmitter light attenuation when an elevator leaves a factory, namely reducing an initial light curtain threshold value obtained through calculation originally so as to solve the problem that the elevator cannot be closed after the infrared transmitter is subjected to light attenuation, in the embodiment of the invention, the change of the light curtain threshold value of the infrared receiver is kept synchronous with the change of the infrared signal intensity transmitted by the infrared transmitter, so that the situation that passengers or goods are clamped due to the fact that the infrared transmitter does not have light attenuation or the initial stage of light attenuation caused by the fact that the initial light curtain threshold value is reduced is avoided, when obstacles exist among elevator car doors, the infrared receiver still judges that no obstacle exists among the elevator car doors according to the reduced light curtain threshold value, and the safety of elevator operation is improved.
Example two
Fig. 2 is a flowchart of a detection updating method for an elevator according to a second embodiment of the present invention, which is based on the foregoing embodiment, and further adds a calculation process of an initial light curtain threshold at an infrared receiver, and the method specifically includes the following steps:
In this embodiment, the initial intensity value, i.e., the third intensity, of the infrared signal emitted by the infrared emitter can be calculated by measuring the current value or the voltage value converted by the photoelectric conversion circuit at the infrared receiver also initially installed at the car door of the elevator when the infrared emitter is initially installed at the car door.
In one embodiment of the present invention, since the infrared transmitter includes a plurality of transmitting tubes each having an initial intensity value of the transmitted infrared signal, a third intensity of the infrared signal transmitted by each transmitting tube when initially installed at the car door of the elevator can be obtained.
In this embodiment, when the third intensity of the infrared signal initially sent by the infrared transmitter is obtained, the light curtain threshold at the infrared receiver may be set according to the third intensity, where the light curtain threshold is set to help the elevator stop closing the car doors and reopen when there is an obstacle between the car doors. However, on the path of the infrared transmitter to transmit the infrared signal to the infrared receiver, firstly the infrared signal is attenuated when passing through the path, and further, some obstacles between the car doors have certain light transmittance, which causes the intensity of the infrared signal when passing through the obstacles to reach the infrared receiver and is lost too much, and if the light curtain threshold value is simply set by the aforementioned path attenuation factor without considering the situation, the situation that passengers or goods are clamped is easily caused.
Therefore, in the present embodiment, the intensity attenuation value may be calculated as an intensity attenuation value when the third intensity of the infrared signal transmitted by the infrared transmitter reaches the infrared receiver after the third intensity of the infrared signal reaches the infrared receiver.
In one embodiment of the present invention, the intensity attenuation value may be calculated by calculating the intensity of the infrared signal transmitted at the third intensity to the receiving tube through the obstacle as the intensity attenuation value, that is, the intensity attenuation value may be calculated after the receiving tube matched with the transmitting tube receives the third intensity of the infrared signal transmitted from each transmitting tube. In this embodiment, the transparent palm can be used as an obstacle between the car doors, and the formula of the light penetrating the object is:
where E represents the energy of the infrared signal, h represents the penetration depth, c is the material coefficient, and λ is the wavelength. The remaining energy of the infrared signal after passing through the palm for attenuation can be calculated according to the formula of the light penetrating through the object, and the intensity of the infrared signal after passing through the palm for attenuation can be further obtained.
In this embodiment, in order to detect the occlusion of the palm, the threshold value of the light curtain at the receiving tube may be set to be slightly greater than the intensity of the infrared signal after passing through the palm for attenuation, so that when the receiving tube receives the infrared signal smaller than the threshold value of the light curtain, it may be determined that an obstacle, i.e., the palm, exists between the car doors, and the transmission of the infrared signal between the receiving tubes of the transmitting tube is blocked.
And step 203, calculating a sum value between the intensity attenuation value and a preset compensation coefficient as an initial light curtain threshold value.
In this embodiment, in addition to the intensity attenuation of the infrared signal caused by the infrared signal transmission path and the obstacle, a compensation coefficient actually set for engineering, for example, the influence of factors such as ambient light on the attenuation of the signal intensity of the infrared signal reaching the infrared receiver, is also considered when setting the light curtain threshold. The initial light curtain threshold is actually the sum of the aforementioned intensity attenuation value and the compensation factor actually obtained from the engineering.
In one embodiment of the present invention, the initial light curtain threshold is calculated for each transmitting tube and the receiving tube matched with the transmitting tube, so that the sum of the intensity attenuation value and the preset error compensation coefficient is calculated as the initial light curtain threshold matched with the transmitting tube and the receiving tube, and the light curtain threshold can be used for detecting whether an obstacle exists on the light path formed by the transmitting tube and the receiving tube. The optical path is the path of infrared signal transmission between the transmitting tube and the receiving tube.
And step 204, controlling the infrared transmitter to transmit an infrared signal to the infrared receiver along the edge of the car door of the elevator.
And step 206, updating a light curtain threshold according to the first intensity, wherein the light curtain threshold is used for detecting whether an obstacle exists on the edge of a car door of the elevator.
In the embodiment of the invention, the initial light curtain threshold value is set with better accuracy by considering the light transmission condition of the barrier and presetting the compensation coefficient aiming at the error formed in the actual infrared signal transmission process of the project when the initial light curtain threshold value is calculated.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a detection and update device for an elevator according to a third embodiment of the present invention, which may specifically include the following modules:
an infrared signal transmitting module 310, configured to control the infrared transmitter to transmit an infrared signal to the infrared receiver along an edge of a car door of the elevator;
a first intensity query module 320, configured to query a first intensity of the infrared signal if the infrared receiver receives the infrared signal;
a first light curtain threshold updating module 330, configured to update a light curtain threshold according to the first intensity, where the light curtain threshold is used to detect whether an obstacle exists at an edge of a car door of the elevator.
In one embodiment of the present invention, the infrared signal transmitting module 310 includes:
the learning mode starting module is used for starting a learning mode when the running time of the elevator exceeds a preset time threshold;
the infrared signal transmission first driving module is used for driving the infrared transmitter to transmit an infrared signal to the infrared receiver along the edge of the car door of the elevator if the car door of the elevator is detected to be closed in the learning mode.
In an embodiment of the present invention, the infrared signal transmitting module 310 further includes:
the light source query module is used for querying other light sources except the infrared emitter in the elevator car;
the light source closing module is used for closing the other light sources in the process of updating the light curtain threshold value;
and the light source recovery module is used for recovering the other light sources when the light curtain threshold value is updated.
In one embodiment of the present invention, the infrared signal emitting first driving module includes:
the power setting module is used for setting the power of each transmitting tube to be the maximum value;
and the infrared signal transmitting second driving module is used for driving each transmitting tube to transmit an infrared signal to the receiving tube along the edge of the car door of the elevator at the power.
In an embodiment of the present invention, the light curtain threshold first updating module 330 includes:
the first acquisition module of second intensity is used for acquiring the second intensity of the infrared signal emitted by the infrared emitter when the light curtain threshold value is updated last;
the first attenuation difference calculating module is used for calculating a difference value between the second intensity and the current light curtain threshold value to serve as an attenuation difference;
and the first light curtain threshold updating module is used for calculating the difference value between the first intensity and the attenuation difference as a new light curtain threshold.
In one embodiment of the present invention, the second intensity first obtaining module includes:
the second intensity second acquisition module is used for acquiring the second intensity of the infrared signal emitted by the emission tube when the light curtain threshold value is updated last time;
the attenuation difference first calculation module comprises:
the second attenuation difference calculating module is used for calculating the difference value between the second intensity of the transmitting tube and the current light curtain threshold value to serve as the attenuation difference;
the first light curtain threshold updating module comprises:
and a second light curtain threshold updating module, configured to calculate a difference between the first intensity and the attenuation difference as the new light curtain threshold of the receiving tube matched with the transmitting tube.
In one embodiment of the invention, the detection update apparatus of an elevator further comprises:
a third intensity first acquisition module for acquiring a third intensity of the infrared signal emitted by the infrared emitter when initially installed at a car door of the elevator;
an intensity attenuation value first calculation module for calculating an intensity of the infrared signal transmitted at the third intensity, which reaches the infrared receiver after passing through an obstacle, as an intensity attenuation value;
and the initial light curtain threshold value first acquisition module is used for calculating a sum value between the intensity attenuation value and a preset compensation coefficient to serve as an initial light curtain threshold value.
In one embodiment of the present invention, the third strength first obtaining module includes:
a third intensity second acquisition module for acquiring a third intensity of the infrared signal emitted by each of the emission tubes when initially installed at a car door of the elevator;
the first calculation module of the intensity attenuation value comprises:
calculating an intensity of the infrared signal transmitted at the third intensity to the receiving tube through an obstacle as an intensity attenuation value;
the initial light curtain threshold first obtaining module comprises:
and the second initial light curtain threshold acquisition module is used for calculating a sum value between the intensity attenuation value and a preset error compensation coefficient, and the sum value serves as an initial light curtain threshold adapted to the transmitting tube and the receiving tube, and the light curtain threshold is used for detecting whether an obstacle exists on a light path formed by the transmitting tube and the receiving tube.
The elevator detection and updating device provided by the embodiment of the invention can execute the elevator detection and updating method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
Example four
Fig. 4 is a schematic structural diagram of a computer device according to a fourth embodiment of the present invention. FIG. 4 illustrates a block diagram of an exemplary computer device 12 suitable for use in implementing embodiments of the present invention. The computer device 12 shown in FIG. 4 is only one example and should not bring any limitations to the functionality or scope of use of embodiments of the present invention.
As shown in FIG. 4, computer device 12 is in the form of a general purpose computing device. The components of computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that couples various system components including the system memory 28 and the processing unit 16.
The system memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM)30 and/or cache memory 32. Computer device 12 may further include other removable/non-removable, volatile/nonvolatile computer system storage media. By way of example only, storage system 34 may be used to read from and write to non-removable, nonvolatile magnetic media (not shown in FIG. 4, and commonly referred to as a "hard drive"). Although not shown in FIG. 4, a magnetic disk drive for reading from and writing to a removable, nonvolatile magnetic disk (e.g., a "floppy disk") and an optical disk drive for reading from or writing to a removable, nonvolatile optical disk (e.g., a CD-ROM, DVD-ROM, or other optical media) may be provided. In these cases, each drive may be connected to bus 18 by one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules that are configured to carry out the functions of embodiments of the invention.
A program/utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28, such program modules 42 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which examples or some combination thereof may comprise an implementation of a network environment. Program modules 42 generally carry out the functions and/or methodologies of the described embodiments of the invention.
The processing unit 16 executes various functional applications and data processing by running a program stored in the system memory 28, for example, to implement the elevator detection and update method provided by the embodiment of the present invention.
EXAMPLE five
Fifth, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the elevator detection and update method, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
A computer readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A detection updating method of an elevator is characterized in that an infrared transmitter is respectively installed on one side of a car door of the elevator, and an infrared receiver is installed on the other side of the car door of the elevator, and the method comprises the following steps:
controlling the infrared transmitter to transmit an infrared signal to the infrared receiver along an edge of a car door of the elevator;
if the infrared receiver receives the infrared signal, inquiring first intensity of the infrared signal;
updating a light curtain threshold for detecting whether an obstacle is present at an edge of a car door of the elevator according to the first intensity.
2. The method of claim 1, wherein the controlling the infrared transmitter to transmit an infrared signal to the infrared receiver along an edge of a car door of the elevator comprises:
starting a learning mode when the running time of the elevator exceeds a preset time threshold;
and if the car door of the elevator is detected to be closed in the learning mode, driving the infrared transmitter to transmit an infrared signal to the infrared receiver along the edge of the car door of the elevator.
3. The method of claim 2, wherein the controlling the infrared transmitter to transmit an infrared signal to the infrared receiver along an edge of a car door of the elevator, further comprises:
querying other light sources in the car of the elevator except for the infrared emitter;
turning off the other light sources in updating the light curtain threshold;
resuming the other light sources at the end of updating the light curtain threshold.
4. The method of claim 2, wherein the infrared transmitter comprises a plurality of transmitting tubes and the infrared receiver comprises a plurality of receiving tubes, and wherein actuating the infrared transmitter to transmit an infrared signal to the infrared receiver along an edge of a car door of the elevator comprises:
setting the power of each transmitting tube to be the maximum value;
driving each of the transmitting tubes to transmit infrared signals to the receiving tube along an edge of a car door of the elevator at the power.
5. The method of any of claims 1-4, wherein updating the light curtain threshold based on the first intensity comprises:
when the last updated light curtain threshold value is obtained, the infrared emitter emits the second intensity of the infrared signal;
calculating a difference value between the second intensity and the current light curtain threshold value as an attenuation difference;
calculating a difference between the first intensity and the attenuation difference as a new light curtain threshold.
6. The method of claim 5, wherein the infrared transmitter comprises a plurality of transmitting tubes and the infrared receiver comprises a plurality of receiving tubes, the transmitting tubes mating with the receiving tubes;
when obtaining last update light curtain threshold value, infrared emitter sends the second intensity of infrared signal, includes:
acquiring a second intensity of the infrared signal emitted by the emission tube when the light curtain threshold value is updated last time;
the calculating a difference between the second intensity and the current light curtain threshold as an attenuation difference comprises:
calculating a difference between the second intensity of the emitter tube and the current light curtain threshold as an attenuation difference;
the calculating a difference between the first intensity and the attenuation difference as a new light curtain threshold comprises:
calculating the difference between the first intensity and the attenuation difference as the new light curtain threshold of the receiving tube matched with the transmitting tube.
7. The method according to any one of claims 1-4, further comprising:
obtaining a third intensity of an infrared signal emitted by the infrared emitter when initially installed at a car door of the elevator;
calculating an intensity of the infrared signal emitted at the third intensity as an intensity attenuation value, the intensity passing through an obstacle to reach the infrared receiver;
and calculating the sum value between the intensity attenuation value and a preset compensation coefficient to serve as an initial light curtain threshold value.
8. The method of claim 7, wherein the infrared transmitter comprises a plurality of transmitting tubes and the infrared receiver comprises a plurality of receiving tubes, the transmitting tubes mating with the receiving tubes;
the obtaining a third intensity of an infrared signal emitted by the infrared emitter when initially installed at a car door of the elevator, comprising:
acquiring a third intensity of the infrared signal emitted by each of the emitter tubes when initially installed at a car door of the elevator;
said calculating an intensity of said infrared signal transmitted at said third intensity to said infrared receiver through an obstacle as an intensity decay value, comprising:
calculating an intensity of the infrared signal transmitted at the third intensity to the receiving tube through an obstacle as an intensity attenuation value;
the calculating a sum of the intensity attenuation value and a preset error compensation coefficient as an initial light curtain threshold includes:
and calculating the sum of the intensity attenuation value and a preset error compensation coefficient to serve as an initial light curtain threshold value which is matched with the transmitting tube and the receiving tube, wherein the light curtain threshold value is used for detecting whether an obstacle exists on a light path formed by the transmitting tube and the receiving tube.
9. A computer device, characterized in that the computer device comprises:
one or more processors;
a memory for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of detection update for elevators of any of claims 1-8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the method of detection update of an elevator according to any one of claims 1-8.
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| CN115231421A (en) * | 2022-07-22 | 2022-10-25 | 日立楼宇技术（广州）有限公司 | Light curtain control method and device, elevator light curtain and storage medium |
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| CN114212650B (en) | 2023-09-08 |
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