CN114538226B - Method, device, medium and equipment for improving determination of elevator car position - Google Patents
Method, device, medium and equipment for improving determination of elevator car position Download PDFInfo
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- CN114538226B CN114538226B CN202210257712.6A CN202210257712A CN114538226B CN 114538226 B CN114538226 B CN 114538226B CN 202210257712 A CN202210257712 A CN 202210257712A CN 114538226 B CN114538226 B CN 114538226B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000004590 computer program Methods 0.000 claims description 9
- 239000011229 interlayer Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
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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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- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The present disclosure relates to a method, apparatus, medium and device for improving the determination of the position of an elevator car. For use in a car assembly mounted to an elevator car, the car assembly being configured with at least two transceivers, the at least two transceivers being mounted to different car outer side walls of the elevator car, the method comprising: when passing through a floor each time, receiving a tag signal sent by an electronic tag through each transceiver, wherein the electronic tag is arranged on each floor of the elevator shaft, a plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signal carries floor number information of the corresponding floor; under the condition that a plurality of tag signals of a floor are collected, determining a target tag signal of the floor from the corresponding plurality of tag signals of the floor; and determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located. The accuracy of determining the stopping position of the elevator car can be improved.
Description
Technical Field
The present disclosure relates to the field of elevator technology, and in particular, to a method, apparatus, medium, and device for improving the determination of the position of an elevator car.
Background
When the elevator fails, the position of the elevator car needs to be found quickly, so that the rescue time is shortened, and the life and property safety of passengers is ensured. Typically, the floor location reached by the elevator car is recorded by the elevator controller, however, in the event of an elevator failure, the floor information recorded by the elevator controller may be inaccurate.
In the related art, an electronic tag is disposed in an elevator hoistway, and a transceiver is disposed in an elevator car, and a signal transmitted from the electronic tag is received by the transceiver, the signal strength of the electronic tag is determined, and the position where the elevator car stays is determined from the signal strength. However, the electronic tag may appear to be blocked or as the usage time increases, dust may affect the signal strength of the electronic tag, resulting in a decrease in signal strength accuracy, and thus a lower accuracy in determining the position where the elevator car stays according to the signal strength.
Disclosure of Invention
Based on this, it is necessary to provide a method, apparatus, medium and device for improving the determination of the position of an elevator car, in order to solve the problem of low accuracy in determining the position where the elevator car stays.
In a first aspect of the present disclosure, there is provided a method of improving a determination of the position of an elevator car, for use in a car apparatus mounted to an elevator car, the car apparatus being configured with at least two transceivers mounted on different car outer side walls of the elevator car, the method comprising:
when a floor passes through each time, receiving a tag signal sent by an electronic tag through each transceiver, wherein the electronic tag is installed on each floor of an elevator shaft, a plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signal carries floor number information of the corresponding floor;
under the condition that a plurality of tag signals of a floor are collected, determining a target tag signal of the floor from the corresponding plurality of tag signals of the floor;
and determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located.
In one embodiment, the step of receiving, by each transceiver, a tag signal sent by an electronic tag each time a floor is traversed includes:
under the condition that any transceiver receives a tag signal sent by any electronic tag, determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal;
when the transceiver receiving the tag signal is determined to be a transceiver facing the wall where the electronic tag is located, continuously receiving the tag signal sent by the electronic tag;
under the condition that the signal intensity of the tag signal is larger than a preset intensity threshold value, determining the number of target floors for installing the electronic tag according to floor number information carried by the tag signal;
continuously monitoring the electronic tag to send a tag signal, and adding the electronic tag into a forbidden receiving list under the condition that the signal intensity of the tag signal is smaller than or equal to the preset intensity threshold again so as to stop receiving the tag signal sent by the electronic tag and start timing;
and removing the electronic tag from the forbidden receiving list under the condition that the timing duration reaches the preset duration, so that the transceiver can re-receive the tag signal sent by the electronic tag.
In one of the embodiments, two transceivers mounted on the outer side walls of adjacent cars are located at different ends up and down and different ends left and right of the elevator car;
the determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal includes:
determining a receiving angle for receiving the tag signal, and determining a relative angle change rate of the tag signal and the transceiver according to the plurality of receiving angles;
and determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the running speed of the elevator car, the relative angle change rate and the orientation of the transceiver receiving the tag signal.
In one embodiment, the step of determining the target tag signal of the floor from the corresponding plurality of tag signals of the floor in the case that the plurality of tag signals of the floor are collected includes:
and under the condition that a plurality of tag signals of one floor are collected, performing de-duplication processing on the plurality of tag signals corresponding to the floor according to the time stamp of collecting each tag signal to obtain a target tag signal of the floor.
In one embodiment, in the case that a plurality of tag signals of a floor are collected, performing deduplication processing on the plurality of tag signals corresponding to the floor according to a timestamp of collecting each tag signal, to obtain a target tag signal of the floor, where the step includes:
under the condition that a plurality of tag signals of one floor are collected, according to the time stamp of collecting each tag signal, aiming at the plurality of tag signals corresponding to the floor, the tag signal representing the tag signal of the same floor number, which is collected first, is used as the target tag signal of the floor, and the tag signals which are not collected first are deleted.
In one embodiment, the step of determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located includes:
calculating a first signal strength difference value between a target tag signal with the strongest signal strength and a target tag signal with the next strongest signal strength;
calculating a second signal intensity difference value between the target tag signal with the strongest signal intensity and the target tag signal with the weakest signal intensity in the three target tag signals with the strongest signal intensity;
determining that the elevator car is located at the floor where the corresponding electronic tag with the strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is larger than a preset difference value threshold value;
determining that the elevator car is located at a floor interlayer of the floor where the electronic tag corresponding to the strongest signal intensity is located and the floor where the electronic tag corresponding to the second strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is smaller than or equal to a preset difference value threshold;
the preset difference threshold is calibrated according to the floor height and the maximum signal intensity of the electronic tag signal.
In a second aspect of the present disclosure, there is provided an apparatus for improving a determination of a position of an elevator car, for use in a car apparatus mounted to the elevator car, the car apparatus being configured with at least two transceivers mounted on different car outer side walls of the elevator car, the apparatus comprising:
the receiving module is configured to receive tag signals sent by the electronic tags through the transceivers when the elevator passes through a floor at each time, the electronic tags are installed on each floor of the elevator shaft, the plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signals carry floor number information of corresponding floors;
a signal determining module configured to determine, in case of each acquisition of a plurality of tag signals of a floor, a target tag signal of the floor from a corresponding plurality of tag signals of the floor;
and the floor determining module is configured to determine the position of the elevator car according to the floors where the electronic tags corresponding to the three target tag signals with the strongest signal strength are located.
In one embodiment, the receiving module includes:
the first determining submodule is configured to determine whether the transceiver receiving the tag signal is a transceiver facing a wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal when any of the transceivers receives the tag signal sent by any of the electronic tags;
the first receiving sub-module is configured to continuously receive the tag signal sent by the electronic tag when the transceiver receiving the tag signal is determined to be a transceiver facing the wall where the electronic tag is located;
the second determining submodule is configured to determine the target floor number of the electronic tag according to floor number information carried by the tag signal under the condition that the signal intensity of the tag signal is larger than a preset intensity threshold value;
the adding sub-module is configured to monitor the tag signal sent by the electronic tag continuously, and add the electronic tag into a forbidden receiving list to stop receiving the tag signal sent by the electronic tag and start timing when the signal intensity of the tag signal is smaller than or equal to the preset intensity threshold again;
and the removing sub-module is configured to remove the electronic tag from the forbidden receiving list under the condition that the timing duration reaches the preset duration, so that the transceiver can re-receive the tag signal sent by the electronic tag.
In one of the embodiments, two transceivers mounted on the outer side walls of adjacent cars are located at different ends up and down and different ends left and right of the elevator car;
the first determination submodule is configured to:
determining a receiving angle for receiving the tag signal, and determining a relative angle change rate of the tag signal and the transceiver according to the plurality of receiving angles;
and determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the running speed of the elevator car, the relative angle change rate and the orientation of the transceiver receiving the tag signal.
In one embodiment, the signal determining module is configured to, when a plurality of tag signals of a floor are collected, perform deduplication processing on the plurality of tag signals corresponding to the floor according to a timestamp of collecting each tag signal, so as to obtain a target tag signal of the floor.
In one embodiment, the signal determining module is configured to, in a case where a plurality of tag signals of a floor are collected, use, according to a time stamp of each of the collected tag signals, for a plurality of tag signals corresponding to the floor, a tag signal that is obtained first by using a tag signal representing the same floor number as a target tag signal of the floor, and delete tag signals that are not obtained first.
In one embodiment, the floor determination module is configured to:
calculating a first signal strength difference value between a target tag signal with the strongest signal strength and a target tag signal with the next strongest signal strength;
calculating a second signal intensity difference value between the target tag signal with the strongest signal intensity and the target tag signal with the weakest signal intensity in the three target tag signals with the strongest signal intensity;
determining that the elevator car is located at the floor where the corresponding electronic tag with the strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is larger than a preset difference value threshold value;
determining that the elevator car is located at a floor interlayer of the floor where the electronic tag corresponding to the strongest signal intensity is located and the floor where the electronic tag corresponding to the second strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is smaller than or equal to a preset difference value threshold;
the preset difference threshold is calibrated according to the floor height and the maximum signal intensity of the electronic tag signal.
In a third aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of the first aspects.
In a fourth aspect of the present disclosure, there is provided an electronic device comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to perform the steps of the method of determining the position of an elevator car as defined in any one of the first aspects.
The above method of improving the determination of the position of an elevator car is provided with at least two transceivers by means of a car arrangement, the at least two transceivers being mounted on different car outer side walls of the elevator car, the method comprising: when passing through a floor each time, receiving a tag signal sent by an electronic tag through each transceiver, wherein the electronic tag is arranged on each floor of the elevator shaft, a plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signal carries floor number information of the corresponding floor; under the condition that a plurality of tag signals of a floor are collected, determining a target tag signal of the floor from the corresponding plurality of tag signals of the floor; and determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located. The accuracy of determining the stopping position of the elevator car can be improved.
Drawings
Fig. 1 is a flow chart of a method of improving a determination of elevator car position in one embodiment.
Fig. 2 is a flowchart for implementing step S11 in fig. 1 according to one embodiment.
Fig. 3 is a block diagram of an apparatus for enhancing determination of elevator car position in one embodiment.
Detailed Description
In order that the above-recited objects, features and advantages of the present disclosure will become more readily apparent, a more particular description of the disclosure will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. The present disclosure may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the disclosure, and therefore the disclosure is not to be limited to the specific embodiments disclosed below.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Fig. 1 is a flow chart of one embodiment of a method of improving the determination of the position of an elevator car, applied to a car apparatus mounted to an elevator car, the car apparatus being configured with at least two transceivers mounted on different car outer side walls of the elevator car, as shown in fig. 1, comprising:
in step S11, each time a floor is passed, a tag signal sent by an electronic tag is received by each transceiver.
The electronic tags are arranged on each floor of the elevator shaft, the plurality of electronic tags on each floor are respectively arranged on walls on different sides of the elevator shaft, and the tag signals carry floor number information of the corresponding floors.
In the embodiment of the disclosure, if the elevator car stops at a floor, each transceiver is opposite to an electronic tag on a wall of the elevator hoistway opposite to the outer side wall of the car where the transceiver is located.
In the disclosed embodiments, to distinguish between the transceivers receiving the tag signals of the electronic tags, the mounting locations of each two transceivers are typically spaced more than one-half the size of the elevator car.
For example, where two transceivers are mounted on the outer side walls of adjacent cars, one of the transceivers may be mounted at an end near the upper end of the elevator car and the other transceiver should be mounted near an end at the lower end of the elevator car. For another example, where two transceivers are mounted on adjacent car outer side walls, one of the transceivers is mounted near an elevator car edge, the elevator car edge is the common elevator car edge of the adjacent car outer side walls, and the other transceiver should be mounted away from the elevator car edge.
In the embodiment of the disclosure, the electronic tag may be an active tag or a passive tag
In step S12, when a plurality of tag signals of a floor are acquired, a target tag signal of the floor is determined from the corresponding plurality of tag signals of the floor.
In one embodiment, the step of determining the target tag signal of the floor from the corresponding plurality of tag signals of the floor in the case that the plurality of tag signals of the floor are collected includes:
and under the condition that a plurality of tag signals of one floor are collected, performing de-duplication processing on the plurality of tag signals corresponding to the floor according to the time stamp of collecting each tag signal to obtain a target tag signal of the floor.
In one embodiment, in the case that a plurality of tag signals of a floor are collected, performing deduplication processing on the plurality of tag signals corresponding to the floor according to a timestamp of collecting each tag signal, to obtain a target tag signal of the floor, where the step includes:
under the condition that a plurality of tag signals of one floor are collected, according to the time stamp of collecting each tag signal, aiming at the plurality of tag signals corresponding to the floor, the tag signal representing the tag signal of the same floor number, which is collected first, is used as the target tag signal of the floor, and the tag signals which are not collected first are deleted.
In step S13, the position of the elevator car is determined according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located.
The above method of improving the determination of the position of an elevator car is provided with at least two transceivers by means of a car arrangement, the at least two transceivers being mounted on different car outer side walls of the elevator car, the method comprising: when passing through a floor each time, receiving a tag signal sent by an electronic tag through each transceiver, wherein the electronic tag is arranged on each floor of the elevator shaft, a plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signal carries floor number information of the corresponding floor; under the condition that a plurality of tag signals of a floor are collected, determining a target tag signal of the floor from the corresponding plurality of tag signals of the floor; and determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located. The accuracy of determining the stopping position of the elevator car can be improved.
In one embodiment, fig. 2 is a flowchart of one embodiment implementing step S11 in fig. 1, in step S11, the step of receiving, by each transceiver, a tag signal sent by an electronic tag each time a floor is passed, including:
in step S111, when any transceiver receives a tag signal sent by any electronic tag, it is determined, according to the orientation of the transceiver that receives the tag signal, whether the transceiver that receives the tag signal is a transceiver facing the wall where the electronic tag is located.
In the embodiment of the disclosure, two transceivers installed on the outer side walls of adjacent cabs are positioned at the upper and lower different ends of the elevator cabs and at the left and right different ends;
in step S111, the determining, according to the orientation of the transceiver that receives the tag signal, whether the transceiver that receives the tag signal is a transceiver facing the wall where the electronic tag is located, includes:
the receiving angle of the tag signal is determined, and the relative angle change rate of the tag signal and the transceiver is determined according to the plurality of receiving angles.
It can be understood that, because each transceiver is opposite to the electronic tag on the elevator hoistway wall opposite to the outer side wall of the elevator car where the transceiver is located when the elevator car stops at the floor, the angle of the tag signal receiving the electronic tag is vertical, and when the transceiver is not the transceiver facing the wall where the electronic tag is located, the transceiver is not on the same vertical line as the electronic tag, and the angle of the tag signal receiving the electronic tag is not vertical. The angle that is not vertical is different from the vertical angle.
And determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the running speed of the elevator car, the relative angle change rate and the orientation of the transceiver receiving the tag signal.
In the embodiment of the disclosure, the relative angle change rate of each transceiver and each electronic tag is compared, and according to the running speed of the elevator car, the corresponding electronic tag with the smallest relative angle change rate in each transceiver is the electronic tag facing the transceiver, that is, the transceiver of the wall where the transceiver with the smallest relative angle change rate is located is the transceiver facing the wall where the electronic tag is located.
In step S112, when it is determined that the transceiver that receives the tag signal is the transceiver facing the wall where the electronic tag is located, the tag signal sent by the electronic tag is continuously received.
In step S113, if the signal strength of the tag signal is greater than the preset strength threshold, the number of target floors to which the electronic tag is mounted is determined according to the floor number information carried by the tag signal.
In the embodiment of the disclosure, when the signal strength of the tag signal is less than or equal to the preset strength threshold, it is indicated that the elevator car is far from the floor, for example, the electronic tag is installed on floor 5, and the elevator car is still in floor 3.
The preset intensity threshold is calibrated according to floor height and elevator car running speed, and the signal intensity of the tag signal of the electronic tag, which is far from the two sides of the building, can be generally determined to be the preset intensity threshold. For example, the electronic tag installed in floor 5 may determine the signal strength received in floor 3 or floor 7 as the preset strength threshold.
In step S114, continuously monitoring the tag signal sent by the electronic tag, adding the electronic tag into a forbidden receiving list to stop receiving the tag signal sent by the electronic tag and starting timing when the signal intensity of the tag signal is less than or equal to the preset intensity threshold again;
in this embodiment of the present disclosure, when the signal strength of the tag signal is less than or equal to the preset strength threshold again, it is indicated that the elevator car is far away from the floor, and tag signal reception of the electronic tag may no longer be performed.
In step S115, in the case that the time duration reaches the preset time duration, the electronic tag is removed from the forbidden reception list, so that the transceiver can re-receive the tag signal sent by the electronic tag.
The preset time length can be calibrated according to the running speed of the elevator car, the shortest stopping time length and the floor height.
In the embodiment of the disclosure, the electronic tag is removed from the forbidden receiving list, so that when the elevator car returns to the floor area where the electronic tag is located, the tag signal sent by the electronic tag can be received again.
In one embodiment, in step S13, the step of determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located includes:
calculating a first signal strength difference value between a target tag signal with the strongest signal strength and a target tag signal with the next strongest signal strength;
calculating a second signal intensity difference value between the target tag signal with the strongest signal intensity and the target tag signal with the weakest signal intensity in the three target tag signals with the strongest signal intensity;
determining that the elevator car is located at the floor where the corresponding electronic tag with the strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is larger than a preset difference value threshold value;
determining that the elevator car is located at a floor interlayer of the floor where the electronic tag corresponding to the strongest signal intensity is located and the floor where the electronic tag corresponding to the second strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is smaller than or equal to a preset difference value threshold;
the preset difference threshold is calibrated according to the floor height and the maximum signal intensity of the electronic tag signal. For example, the preset difference threshold may be transmitted to the electronic tag signal for the maximum signal strength interval
In this embodiment of the present disclosure, if the transceiver is aligned with the electronic tag, the elevator car fails to stop, and there are two tag signals with the strongest signal intensities, where the difference between the first signal intensity difference and the second signal intensity difference is 0.
Based on the same inventive concept, the disclosed embodiments also provide an apparatus for improving a determination of a position of an elevator car, applied to a car apparatus mounted on an elevator car, the car apparatus being configured with at least two transceivers mounted on different car outer side walls of the elevator car, fig. 3 being a block diagram of one of the apparatus for improving a determination of a position of an elevator car, the apparatus 300 comprising:
the receiving module 310 is configured to receive, through each transceiver, a tag signal sent by an electronic tag, where the electronic tag is installed on each floor of the elevator hoistway, and a plurality of electronic tags on each floor are respectively disposed on walls on different sides of the elevator hoistway, and the tag signal carries floor number information of a corresponding floor;
a signal determining module 320 configured to determine, in case of each acquisition of a plurality of tag signals of a floor, a target tag signal of the floor from a corresponding plurality of tag signals of the floor;
the floor determining module 330 is configured to determine the location of the elevator car according to the floors where the electronic tags corresponding to the three target tag signals with the strongest signal strength are located.
In one embodiment, the receiving module 310 includes:
the first determining submodule is configured to determine whether the transceiver receiving the tag signal is a transceiver facing a wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal when any of the transceivers receives the tag signal sent by any of the electronic tags;
the first receiving sub-module is configured to continuously receive the tag signal sent by the electronic tag when the transceiver receiving the tag signal is determined to be a transceiver facing the wall where the electronic tag is located;
the second determining submodule is configured to determine the target floor number of the electronic tag according to floor number information carried by the tag signal under the condition that the signal intensity of the tag signal is larger than a preset intensity threshold value;
the adding sub-module is configured to monitor the tag signal sent by the electronic tag continuously, and add the electronic tag into a forbidden receiving list to stop receiving the tag signal sent by the electronic tag and start timing when the signal intensity of the tag signal is smaller than or equal to the preset intensity threshold again;
and the removing sub-module is configured to remove the electronic tag from the forbidden receiving list under the condition that the timing duration reaches the preset duration, so that the transceiver can re-receive the tag signal sent by the electronic tag.
In one of the embodiments, two transceivers mounted on the outer side walls of adjacent cars are located at different ends up and down and different ends left and right of the elevator car;
the first determination submodule is configured to:
determining a receiving angle for receiving the tag signal, and determining a relative angle change rate of the tag signal and the transceiver according to the plurality of receiving angles;
and determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the running speed of the elevator car, the relative angle change rate and the orientation of the transceiver receiving the tag signal.
In one embodiment, the signal determining module 320 is configured to, in a case where a plurality of tag signals of a floor are collected, perform, according to a time stamp of each of the collected tag signals, deduplication processing on a plurality of tag signals corresponding to the floor, to obtain a target tag signal of the floor.
In one embodiment, the signal determining module 320 is configured to, in a case where a plurality of tag signals of a floor are collected, determine, according to a time stamp of collecting each tag signal, for a plurality of tag signals corresponding to the floor, a tag signal that is the first collected tag signal of a tag signal representing the same floor number as a target tag signal of the floor, and delete tag signals that are not the first collected tag signals.
In one embodiment, the floor determination module 330 is configured to:
calculating a first signal strength difference value between a target tag signal with the strongest signal strength and a target tag signal with the next strongest signal strength;
calculating a second signal intensity difference value between the target tag signal with the strongest signal intensity and the target tag signal with the weakest signal intensity in the three target tag signals with the strongest signal intensity;
determining that the elevator car is located at the floor where the corresponding electronic tag with the strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is larger than a preset difference value threshold value;
determining that the elevator car is located at a floor interlayer of the floor where the electronic tag corresponding to the strongest signal intensity is located and the floor where the electronic tag corresponding to the second strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is smaller than or equal to a preset difference value threshold;
the preset difference threshold is calibrated according to the floor height and the maximum signal intensity of the electronic tag signal.
The disclosed embodiments also provide a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the method of any of the preceding claims.
The embodiment of the disclosure also provides an electronic device, including:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to perform the steps of the method of improving the determination of the position of an elevator car as described in any of the preceding.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples represent only a few embodiments of the present disclosure, which are described in more detail and detail, but are not to be construed as limiting the scope of the disclosure. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the disclosure, which are within the scope of the disclosure. Accordingly, the scope of protection of the present disclosure should be determined by the following claims.
Claims (8)
1. A method of improving the determination of the position of an elevator car, applied to a car assembly mounted to the elevator car, the car assembly being configured with at least two transceivers mounted on different car outer side walls of the elevator car, the method comprising:
when a floor passes through each time, receiving a tag signal sent by an electronic tag through each transceiver, wherein the electronic tag is installed on each floor of an elevator shaft, a plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signal carries floor number information of the corresponding floor;
under the condition that a plurality of tag signals of a floor are collected, determining a target tag signal of the floor from the corresponding plurality of tag signals of the floor;
determining the position of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located;
the step of receiving, by each transceiver, a tag signal sent by an electronic tag when each floor is traversed, includes:
under the condition that any transceiver receives a tag signal sent by any electronic tag, determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal;
when the transceiver receiving the tag signal is determined to be a transceiver facing the wall where the electronic tag is located, continuously receiving the tag signal sent by the electronic tag;
under the condition that the signal intensity of the tag signal is larger than a preset intensity threshold value, determining the number of target floors for installing the electronic tag according to floor number information carried by the tag signal;
continuously monitoring the electronic tag to send a tag signal, and adding the electronic tag into a forbidden receiving list under the condition that the signal intensity of the tag signal is smaller than or equal to the preset intensity threshold again so as to stop receiving the tag signal sent by the electronic tag and start timing;
and removing the electronic tag from the forbidden receiving list under the condition that the timing duration reaches the preset duration, so that the transceiver can re-receive the tag signal sent by the electronic tag.
2. The method of claim 1, wherein two transceivers mounted to the outer side walls of adjacent cars are located at different ends up and down and different ends left and right of the elevator car;
the determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal includes:
determining a receiving angle for receiving the tag signal, and determining a relative angle change rate of the tag signal and the transceiver according to the plurality of receiving angles;
and determining whether the transceiver receiving the tag signal is a transceiver facing the wall where the electronic tag is located according to the running speed of the elevator car, the relative angle change rate and the orientation of the transceiver receiving the tag signal.
3. The method of claim 1, wherein the step of determining the target tag signal for a floor from the corresponding plurality of tag signals for the floor, in the case where the plurality of tag signals for the floor are each acquired, comprises:
and under the condition that a plurality of tag signals of one floor are collected, performing de-duplication processing on the plurality of tag signals corresponding to the floor according to the time stamp of collecting each tag signal to obtain a target tag signal of the floor.
4. A method according to claim 3, wherein in the case that a plurality of tag signals of a floor are collected, the step of performing deduplication processing on the plurality of tag signals corresponding to the floor according to the time stamp of collecting each tag signal to obtain a target tag signal of the floor includes:
under the condition that a plurality of tag signals of one floor are collected, according to the time stamp of collecting each tag signal, aiming at the plurality of tag signals corresponding to the floor, the tag signal representing the tag signal of the same floor number, which is collected first, is used as the target tag signal of the floor, and the tag signals which are not collected first are deleted.
5. The method according to any one of claims 1-4, wherein the step of determining the location of the elevator car according to the floor where the electronic tag corresponding to the three target tag signals with the strongest signal strength is located includes:
calculating a first signal strength difference value between a target tag signal with the strongest signal strength and a target tag signal with the next strongest signal strength;
calculating a second signal intensity difference value between the target tag signal with the strongest signal intensity and the target tag signal with the weakest signal intensity in the three target tag signals with the strongest signal intensity;
determining that the elevator car is located at the floor where the corresponding electronic tag with the strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is larger than a preset difference value threshold value;
determining that the elevator car is located at a floor interlayer of the floor where the electronic tag corresponding to the strongest signal intensity is located and the floor where the electronic tag corresponding to the second strongest signal intensity is located when the difference value between the first signal intensity difference value and the second signal intensity difference value is smaller than or equal to a preset difference value threshold;
the preset difference threshold is calibrated according to the floor height and the maximum signal intensity of the electronic tag signal.
6. An apparatus for improving the determination of the position of an elevator car, applied to a car apparatus mounted to an elevator car, said car apparatus being provided with at least two transceivers mounted to different car outer side walls of said elevator car, said apparatus comprising:
the receiving module is configured to receive tag signals sent by the electronic tags through the transceivers when the elevator passes through a floor at each time, the electronic tags are installed on each floor of the elevator shaft, the plurality of electronic tags of each floor are respectively arranged on walls of different sides of the elevator shaft, and the tag signals carry floor number information of corresponding floors;
a signal determining module configured to determine, in case of each acquisition of a plurality of tag signals of a floor, a target tag signal of the floor from a corresponding plurality of tag signals of the floor;
the floor determining module is configured to determine the position of the elevator car according to floors where electronic tags corresponding to three target tag signals with the strongest signal strength are located;
wherein the receiving module comprises:
the first determining submodule is configured to determine whether the transceiver receiving the tag signal is a transceiver facing a wall where the electronic tag is located according to the orientation of the transceiver receiving the tag signal when any of the transceivers receives the tag signal sent by any of the electronic tags;
the first receiving sub-module is configured to continuously receive the tag signal sent by the electronic tag when the transceiver receiving the tag signal is determined to be a transceiver facing the wall where the electronic tag is located;
the second determining submodule is configured to determine the target floor number of the electronic tag according to floor number information carried by the tag signal under the condition that the signal intensity of the tag signal is larger than a preset intensity threshold value;
the adding sub-module is configured to monitor the tag signal sent by the electronic tag continuously, and add the electronic tag into a forbidden receiving list to stop receiving the tag signal sent by the electronic tag and start timing when the signal intensity of the tag signal is smaller than or equal to the preset intensity threshold again;
and the removing sub-module is configured to remove the electronic tag from the forbidden receiving list under the condition that the timing duration reaches the preset duration, so that the transceiver can re-receive the tag signal sent by the electronic tag.
7. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the method according to any one of claims 1-5.
8. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing said computer program in said memory to carry out the steps of the method of improving the determination of the position of an elevator car according to any one of claims 1-5.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5682024A (en) * | 1995-07-31 | 1997-10-28 | Otis Elevator Company | Elevator position determination |
| CN108349706A (en) * | 2015-11-19 | 2018-07-31 | 因温特奥股份公司 | For determining the method about the information for accommodating elevator components in the elevator shaft |
| CN110869303A (en) * | 2017-06-27 | 2020-03-06 | 通力股份公司 | Method and apparatus for configuring wireless devices in an elevator system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5682024A (en) * | 1995-07-31 | 1997-10-28 | Otis Elevator Company | Elevator position determination |
| CN108349706A (en) * | 2015-11-19 | 2018-07-31 | 因温特奥股份公司 | For determining the method about the information for accommodating elevator components in the elevator shaft |
| CN110869303A (en) * | 2017-06-27 | 2020-03-06 | 通力股份公司 | Method and apparatus for configuring wireless devices in an elevator system |
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