CN114104896A - Elevator traction machine vibration machine detection method and device, computer equipment and storage medium - Google Patents
Elevator traction machine vibration machine detection method and device, computer equipment and storage medium Download PDFInfo
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- CN114104896A CN114104896A CN202111437536.6A CN202111437536A CN114104896A CN 114104896 A CN114104896 A CN 114104896A CN 202111437536 A CN202111437536 A CN 202111437536A CN 114104896 A CN114104896 A CN 114104896A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B15/00—Main component parts of mining-hoist winding devices
- B66B15/08—Driving gear
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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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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The embodiment of the invention discloses a method and a device for detecting an elevator tractor shock machine, computer equipment and a storage medium, wherein the method comprises the following steps: driving a traction machine to drive an elevator car to move at a preset rotating speed; acquiring the actual time length of the elevator car reaching a preset position; collecting a position signal of the position signal device when the elevator car passes by the position device; determining whether the tractor shakes or not according to the actual time length, the preset time length and the position signal; if yes, fault alarm information is generated and the traction machine is stopped to be driven, a position signal device is a device which is usually configured for the elevator, namely, the detection of the tractor vibration machine can be realized by adopting an original sensor of the elevator, an additional special vibration machine sensor is not required to be added, the material cost of the elevator is reduced, and the installation process is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of elevator safety, in particular to a method and a device for detecting an elevator tractor vibration machine, computer equipment and a storage medium.
Background
With the development of elevator technology, elevators are widely used in buildings, and particularly, vertical lifting elevators can rapidly transport people to designated floors in high-rise buildings.
When the elevator car is provided with a large load and the traction machine driving module is abnormal, the traction machine serving as an elevator host machine can vibrate, and when the traction machine vibrates seriously, the traction machine vibration machine can drive a machine erecting beam for fixing the traction machine to vibrate, and the elevator car can vibrate, so that the elevator is adversely affected. At present, a special vibration machine sensor is mainly added on a traction machine, a vibration machine of the traction machine is detected through the vibration machine sensor, and the material cost and the installation process of the vibration machine sensor are increased.
Disclosure of Invention
The embodiment of the invention provides a method and a device for detecting an elevator tractor shock machine, computer equipment and a storage medium, which aim to solve the problems that the elevator increases material cost and installation procedures due to the fact that a special shock machine sensor needs to be added to detect the tractor shock machine in the prior art.
In a first aspect, an embodiment of the present invention provides a method for detecting a shock of an elevator traction machine, including:
driving a traction machine to drive an elevator car to move at a preset rotating speed; acquiring the actual time length of the elevator car reaching a preset position;
collecting a position signal of a position signal device when the elevator car passes through the position signal device;
determining whether the tractor shakes or not according to the actual time length, the preset time length and the position signal;
and if so, generating fault alarm information and stopping driving the traction machine.
Optionally, the acquiring a position signal of the position signal device when the elevator car passes by the position signal device includes:
for each position signal device, when the elevator car passes through the current position signal device, the position signal of the current position signal device before the elevator car reaches the next position signal device is collected, and the switching signal comprises a switching-on signal and a switching-off signal.
Optionally, the determining whether the tractor generates the earthquake according to the actual time length, the preset time length and the position signal includes:
judging whether the actual time length is greater than a preset time length or not;
if so, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor;
if not, judging whether the quantity of the on signals and the quantity of the off signals in the position signals are more than or equal to twice;
when the quantity of the connection signals and the quantity of the disconnection signals are determined to be more than or equal to two times, determining that the tractor has an abnormal shock, and executing the steps of generating fault alarm information and stopping driving the tractor;
and determining that the traction machine is normal when the number of the connection signals and the disconnection signals is determined to be less than two times.
Optionally, after the driving traction machine drives the elevator car to move at a preset rotation speed, the method further includes:
collecting a positive pulse signal and a negative pulse signal output by a rotary encoder of the elevator traction motor within a preset time length;
calculating the sum of the number of the positive pulse signals and the number of the negative pulses to obtain the total pulse number;
calculating the difference value between the total pulse number and a preset pulse number;
judging whether the difference value is smaller than a preset difference value threshold value or not;
if so, determining that the tractor is normal;
if not, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor.
Optionally, after the driving traction machine drives the elevator car to move at a preset rotation speed, the method further includes:
acquiring current data of the traction machine;
judging whether the tractor generates an earthquake according to the current data;
and if so, executing the steps of generating fault alarm information and stopping driving the traction machine.
Optionally, the acquiring the current data of the traction machine includes:
and acquiring the current waveform and the current value of the three-phase line for driving the traction machine.
Optionally, the determining whether the tractor generates an earthquake according to the current data includes:
calculating the similarity between the current waveform of each phase line and a preset current waveform;
judging whether the similarity is greater than a preset similarity threshold value or not;
if so, determining that the tractor is normal, and calculating the current value of each phase line;
if not, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor;
calculating the difference value of the current values of the phase lines and other phase lines aiming at each phase line;
judging whether the difference value is smaller than a preset current threshold value or not;
if so, determining that the tractor is normal;
if not, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor;
in a second aspect, an embodiment of the present invention provides an elevator traction machine vibration detecting device, including:
the traction machine driving module is used for driving the traction machine to drive the elevator car to move at a preset rotating speed;
the time length obtaining module is used for obtaining the actual time length of the elevator car reaching a preset position;
the position signal acquisition module is used for acquiring a position signal of the position signal device when the elevator car passes through the position signal device;
the first vibration machine judging module is used for determining whether the traction machine generates vibration machine according to the actual time length, the preset time length and the position signal;
and the earthquake machine abnormity alarm module is used for generating fault alarm information and stopping driving the traction machine.
Optionally, the position signal acquisition module includes:
and the signal acquisition submodule is used for acquiring a position signal of the current position signal device before the elevator car reaches the next position signal device when the elevator car passes through the current position signal device for each position signal device, and the switching signal comprises a switching-on signal and a switching-off signal.
Optionally, the first seismograph determination module includes:
the time length judging submodule is used for judging whether the actual time length is greater than a preset time length or not;
the first vibration machine abnormity determining submodule is used for determining that the tractor is abnormal and executing a vibration machine abnormity warning module;
the position signal judgment submodule is used for judging whether the quantity of the on signals and the quantity of the off signals in the position signals are more than or equal to twice;
a second earthquake machine abnormity determining submodule, configured to determine that an earthquake machine abnormity occurs in the traction machine when it is determined that the number of the turn-on signals and the turn-off signals is greater than or equal to two times, and execute an earthquake machine abnormity warning module 505;
and the earthquake machine tractor normality determining submodule is used for determining that the tractor is normal when the number of the connection signals and the disconnection signals is determined to be less than two times.
Optionally, the method further comprises:
the pulse signal acquisition module is used for acquiring a positive pulse signal and a negative pulse signal output by a rotary encoder of the elevator traction motor within a preset time length;
the total pulse number counting module is used for calculating the sum of the number of the positive pulse signals and the number of the negative pulses to obtain the total pulse number;
the pulse number difference value module is used for calculating the difference value between the total pulse number and the preset pulse number;
the pulse number judging module is used for judging whether the difference value is smaller than a preset difference value threshold value or not;
the traction machine normality determining module is used for determining that the traction machine is normal;
and the second earthquake machine abnormity determining module is used for determining that the tractor is in an earthquake machine abnormity and returning to the execution earthquake machine abnormity warning module.
Optionally, the method further comprises:
the current data acquisition module is used for acquiring current data of the traction machine;
the vibration machine judging module is used for judging whether the traction machine generates a vibration machine or not according to the current data;
and the third earthquake machine abnormity determining module is used for determining that the tractor is in an earthquake machine abnormity and returning to the execution earthquake machine abnormity alarming module.
Optionally, the current data acquisition module includes:
and the current waveform and current value acquisition submodule is used for acquiring the current waveform and current value of the three-phase line for driving the traction machine.
Optionally, the seismograph determination module includes:
the current waveform similarity calculation operator module is used for calculating the similarity between the current waveform of the phase line and a preset current waveform aiming at each phase line;
the similarity judgment submodule is used for judging whether the similarity is greater than a preset similarity threshold value or not;
the current value calculation submodule is used for determining that the tractor is normal and calculating the current value of each phase line;
the first vibration machine abnormity judgment submodule is used for determining that the tractor is abnormal and executing a vibration machine abnormity alarm module;
the current difference value calculation submodule is used for calculating the difference value of the current values of the phase lines and other phase lines aiming at each phase line;
the current difference value judgment submodule is used for judging whether the difference value is smaller than a preset current threshold value or not;
the traction machine normality determining submodule is used for determining that the traction machine is normal;
and the second vibration machine abnormity judgment submodule is used for determining that the tractor is abnormal and executing a vibration machine abnormity alarm module.
In a third 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 computer programs;
when executed by the one or more processors, cause the one or more processors to implement the elevator machine shock detection method of the first aspect.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the elevator traction machine shock detection method according to any one of the first aspect.
The method comprises the steps of acquiring the actual time length when the elevator car reaches the preset position after the traction machine is driven to drive the elevator car to move at the preset rotating speed, acquiring the position signal of a position signal device when the elevator car passes through the position signal device, determining whether the traction machine generates the shock machine according to the actual time length, the preset time length and the position signal, and generating fault alarm information and stopping driving the traction machine if the actual time length, the preset time length and the position signal of the position signal device are the actual time length when the elevator car passes through the preset position and the position signal of the position signal device.
Drawings
Fig. 1 is a flowchart of an elevator traction machine vibration machine detection method according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an elevator in the embodiment of the present invention;
fig. 3 is a flowchart of an elevator traction machine vibration machine detection method according to a second embodiment of the present invention;
fig. 4A is a flowchart of an elevator traction machine vibration machine detection method according to a third embodiment of the present invention;
fig. 4B is a schematic view of a control system of an elevator of an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an elevator traction machine shock detection apparatus according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a computer device according to a fifth 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 an elevator hoisting machine vibration detecting method according to an embodiment of the present invention, where this embodiment is applicable to a case of detecting a vibration of a hoisting machine of an elevator, and the method can be executed by an elevator hoisting machine vibration detecting device, and the elevator hoisting machine vibration detecting device can be implemented by software and/or hardware, and can be configured in a computer device, for example, a computer device that controls an elevator, and the method specifically includes the following steps:
and S101, driving a traction machine to drive the elevator car to move at a preset rotating speed.
As shown in fig. 2, which is a schematic structural diagram of an elevator according to an embodiment of the present invention, in an example of the embodiment of the present invention, the traction machine may be an ac motor, for example, an ac motor driven by three-phase current, an output shaft of the traction machine may be coupled to the traction sheave through a speed reduction mechanism, so as to drive the traction rope by the traction sheave, and the elevator car may move up and down in the elevator shaft by the driving of the traction rope.
As shown in fig. 2, end station annunciators may be disposed at two ends of the elevator shaft to detect that the elevator car reaches the two ends of the elevator shaft, and floor annunciators are disposed at positions of each floor leveling in the elevator shaft to detect that the elevator car reaches each floor through the floor annunciators, and control the elevator car to stop moving.
In the embodiment of the present invention, when detecting whether the hoist shakes, the hoisting motor may be driven to drive the elevator car to move at the preset rotational speed, in one example, the hoisting motor may be driven to operate at the preset rotational speed when the elevator car is empty, the hoisting machine may be driven to operate at the preset rotational speed when the elevator car is heavily loaded, the hoisting machine may be driven to operate at the preset rotational speed according to a preset period, and the like.
And S102, acquiring the actual time length of the elevator car reaching a preset position.
In one example, the preset position may be a position of a designated floor, such as a position of one or more floor annunciators, where the position from the floor to the bottom of the elevator hoistway is fixed, and the position from the floor to the floor is also fixed, when the position of the designated floor is the preset position, an actual time length of the running elevator car reaching the preset position may be counted, where the actual time length is a running time length of the elevator car from a starting point position to the preset position, exemplarily, with the bottom of the elevator hoistway as the starting point position, a timer may be started to time when the elevator car starts to run from the bottom of the elevator hoistway, and when the elevator car reaches the preset position, a timing time length of the timer is an actual time length of the elevator car reaching the preset position. Of course, in practical applications, the actual time length of the elevator car reaching the second preset position from the first preset position may also be obtained, for example, the actual time length of the elevator car reaching the third floor from the first floor, at this time, the elevator car may output a signal with a time stamp every time the elevator car reaches one floor, the actual time length of the elevator car reaching the third floor from the first floor may be calculated by using the time stamp of the signal, and of course, the actual time length of the elevator car reaching the preset position may also be obtained in other ways, which is not limited in this embodiment of the present invention.
S103, collecting a position signal of the position signal device when the elevator car passes through the position signal device.
As shown in fig. 2, a floor signal device and an end station signal device are taken as position signal devices as examples, a hoistway position sensor is installed on the elevator car, the hoistway position sensor can detect the floor signal device and the end station signal device, when the position signal device is sensed, the hoistway position sensor outputs a position signal to the control system to determine the floor or position reached by the elevator car, the floor signal device and the hoistway position sensor can provide position signals of the elevator car, in one example, when the elevator car does not reach the position of the floor signal device, the hoistway position sensor outputs an off signal, and when the elevator car reaches, the hoistway position sensor outputs an on signal.
For example, the hoistway position sensor and the position signal device may be a photoelectric sensing system, that is, the hoistway position sensor outputs signal light and receives signal light, and the position signal device may prevent the signal light emitted by the hoistway position sensor from being reflected and then received by the hoistway position sensor, so that the detection of the floor position is realized by the principle. Of course, the position signal device fixed in the elevator shaft may also sense a signal output by a component on the elevator car, for example, the terminal station signal device may sense a position signal output by the car after the car arrives, and the embodiment of the present invention does not limit whether the position signal is output by a component on the elevator car or output by a component on the elevator shaft.
Taking a floor signal device as an example, for each floor signal device, when an elevator car passes through the current floor signal device, the current floor signal device acquires a position signal generated by a hoistway position sensor, wherein the position signal comprises a switch-on signal and a switch-off signal, and the position signal is generated before the elevator car reaches the next floor signal device.
And S104, determining whether the tractor shakes according to the actual time length, the preset time length and the position signal.
In an optional embodiment of the invention, the preset time is a theoretical time when the elevator car reaches the preset position when the traction machine is normal and operates at the preset rotating speed, whether the actual time is longer than the preset time or not can be judged firstly, if so, the tractor is determined to have an abnormal shock, S105 can be executed, namely, fault alarm information is generated and the traction machine is stopped being driven, if not, whether the quantity of the on signals and the quantity of the off signals in the position signals are larger than or equal to two times or not is judged, when the quantity of the on signals and the quantity of the off signals are determined to be larger than or equal to two times, the tractor is determined to have an abnormal shock, S105 can be executed, namely, the fault alarm information is generated and the traction machine is stopped being driven, and when the quantity of the on signals and the quantity of the off signals are determined to be smaller than two times, the tractor is determined to be normal.
In practical application, when a tractor shakes a machine, the larger the tractor shake machine is, and the larger the tractor shake machine is, and finally the tractor drives a frame girder shake machine for fixing the tractor, typically, the tractor can rotate in a short distance in a position in a forward and reverse direction (for example, forward rotation is 1-2 cm, and then reverse rotation is 1-2 cm), in one cycle, the forward and reverse rotation distances are almost consistent, the traction wheel does not rotate substantially, so that the reciprocating motion of an elevator car in one position and the moving speed of the elevator car become small, the actual time for the elevator car to reach the preset position becomes long, based on this, if the actual time for the elevator car to reach the preset position is longer than the preset time, it is determined that the tractor shakes abnormally, or after it is detected that a position signal device causes the elevator car to output a switch-on a position signal device first, and outputting a switch-off signal in a short time, then outputting a switch-on signal and a switch-off signal, so that the elevator car reciprocates at a certain position, determining that the tractor shakes abnormally, and executing S105, otherwise, returning to S102 to continue detecting if the tractor does not shake abnormally.
And S105, generating fault alarm information and stopping driving the traction machine.
After the tractor vibration machine is determined to be abnormal, fault alarm information can be generated and sent to a designated terminal, the fault alarm information can be text information, graphic information or sound and light alarm information, and in order to avoid further deterioration of the tractor vibration machine, the power supply of the tractor can be cut off to stop running the tractor.
The embodiment of the invention determines whether the tractor shakes or not through the actual time length of the elevator car passing through the preset position and the position signal of the position signal device, wherein the position signal device is a sensor which is usually configured in the elevator, namely the tractor shakes and the machine shakes are detected by adopting the original sensor of the elevator, the extra special shake sensor is not required to be added, the material cost of the elevator is reduced, and the installation procedures are reduced.
Furthermore, the position signal of the position signal device comprises a turn-off signal and a turn-on signal, and when the turn-off signal and the turn-on signal of a certain position signal device are more than or equal to two times or the actual time length of reaching a preset position is more than the preset time length, the abnormity of the tractor vibration machine is determined, the vibration machine vibration characteristic of the tractor is fully utilized, a special vibration machine sensor is not required to be added, and the detection method is simple.
Example two
Fig. 3 is a flowchart of an elevator traction machine vibration detecting method according to a second embodiment of the present invention, where the method of this embodiment specifically includes the following steps:
and S301, driving the traction machine to drive the elevator car to move at a preset rotating speed.
As shown in fig. 2, which is a schematic structural diagram of an elevator according to an embodiment of the present invention, in an example of the embodiment of the present invention, the traction machine may be an ac motor, for example, an ac motor driven by three-phase current, an output shaft of the traction machine may be coupled to the traction sheave through a speed reduction mechanism, so as to drive the traction rope by the traction sheave, and the elevator car may move up and down in the elevator shaft by the driving of the traction rope.
As shown in fig. 2, end station annunciators may be provided at both ends of the elevator shaft to detect the arrival of the elevator car at both ends of the elevator shaft, and floor annunciators may be provided at positions of respective floors in the elevator shaft to control the elevator car to stop moving when the arrival of the elevator car at the respective floors is detected by the floor annunciators.
In the embodiment of the present invention, when detecting whether the hoist shakes, the hoisting motor may be driven to drive the elevator car to move at the preset rotation speed, in one example, the hoisting motor may be driven to operate at the preset rotation speed when the elevator car is empty, the hoisting machine may be driven to operate at the preset rotation speed when the load of the elevator car is greater than the preset value, the hoisting machine may be driven to operate at the preset rotation speed according to a preset period, and the like.
S302, collecting a positive pulse signal and a negative pulse signal output by a rotary encoder of the elevator traction motor within a preset time.
As shown in fig. 2, the elevator further includes a rotary encoder for measuring the rotation of the traction sheave, and the rotary encoder outputs a positive pulse signal when the traction sheave rotates in a positive direction and outputs a negative pulse signal when the traction sheave rotates in a negative direction, so that the positive pulse signal and the negative pulse signal output by the rotary encoder can be collected for a preset time period.
And S303, calculating the sum of the number of the positive pulse signals and the number of the negative pulse signals to obtain the total pulse number.
When the tractor runs at a preset rotating speed, the number of the positive pulses collected in the preset time duration is fixed, and the total number of the pulses collected in the preset time duration is the sum of the number of the positive pulse signals and the number of the negative pulses.
And S304, calculating the difference value between the total pulse number and the preset pulse number.
The preset pulse number can be the number of positive pulse signals output when the tractor runs at a preset rotating speed for a preset time length, and the difference value between the total pulse number and the preset pulse number can be calculated to be used as the rotation error of the traction sheave.
S305, judging whether the difference value is smaller than a preset difference value threshold value.
If the difference is smaller than the preset difference threshold, it indicates that the tractor has a jolt but is within the acceptable range, S306 may be executed to determine that the tractor is normal.
And S306, determining that the traction machine is normal.
The process returns to S302 after the traction machine is determined to be normal, and the inspection of the traction machine shock machine is continued.
And S307, determining that the tractor has an abnormal vibration, generating fault alarm information and stopping driving the tractor.
If the difference value is larger than the preset difference value threshold value, the fact that the tractor has the shock machine and affects the normal operation of the elevator is indicated, the fact that the tractor has the shock machine abnormality can be determined, fault alarm information is generated, and the tractor is stopped to be driven, for example, the fault alarm information can be text information, graphic information or sound and light alarm information, and in order to avoid further deterioration of the tractor shock machine, the power supply of the tractor can be cut off to stop the operation of the tractor.
After the traction machine is driven to drive the elevator car to move at a preset rotating speed, acquiring a positive pulse signal and a negative pulse signal output by a rotary encoder of an elevator traction motor within a preset time length, counting the number of the positive pulse signal and the negative pulse signal to obtain a total pulse number, calculating a difference value between the total pulse number and the preset pulse number, judging whether the difference value is smaller than a preset difference threshold value, and if so, determining that the traction machine is normal; if not, determining that the tractor has an abnormal vibration, generating fault alarm information and stopping driving the tractor. The number of positive pulse signals and negative pulse signals output by a rotary encoder of an original tractor on the elevator can be used for determining whether the tractor generates abnormal vibration, an additional special vibration sensor is not needed, the material cost of the elevator is reduced, and the installation procedures are reduced.
EXAMPLE III
Fig. 4A is a flowchart of an elevator traction machine vibration machine detection method provided in the third embodiment of the present invention, where the method of the present embodiment specifically includes the following steps:
and S401, driving the traction machine to drive the elevator car to move at a preset rotating speed.
As shown in fig. 2, which is a schematic structural diagram of an elevator according to an embodiment of the present invention, in an example of the embodiment of the present invention, the traction machine may be a motor, for example, an ac motor driven by three-phase current, an output shaft of the traction machine may be coupled to the traction sheave through a speed reduction mechanism, so as to drive the traction rope by the traction sheave, and the elevator car may move up and down in the elevator shaft by the driving of the traction rope.
As shown in fig. 2, end station annunciators may be provided at both ends of the elevator shaft to detect the arrival of the elevator car at both ends of the elevator shaft, and floor annunciators may be provided at positions of respective floors in the elevator shaft to control the elevator car to stop moving when the arrival of the elevator car at the respective floors is detected by the floor annunciators, both of which are devices inherent in the elevator.
In the embodiment of the present invention, when detecting whether the hoist shakes, the hoisting motor may be driven to drive the elevator car to move at the preset rotation speed, in one example, the hoisting motor may be driven to operate at the preset rotation speed when the elevator car is empty, the hoisting machine may be driven to operate at the preset rotation speed when the load of the elevator car is greater than the preset value, the hoisting machine may be driven to operate at the preset rotation speed according to a preset period, and the like.
And S402, acquiring current data of the traction machine.
As shown in fig. 4B, which is a schematic diagram of an elevator control system according to an embodiment of the present invention, when a traction machine according to an embodiment of the present invention is driven by current input through three power lines, current waveforms and current values of currents of the three power lines (three-phase lines) driving the traction machine can be obtained through current detection, and specifically, in an elevator system, control of the traction machine is implemented by a negative feedback module, which needs to measure the current input into the traction machine and detect a rotation speed through a rotary encoder, so that the current waveforms and current values of the three-phase lines can be obtained through current detection originally in the elevator.
And S403, judging whether the tractor generates an earthquake according to the current data.
In an optional embodiment of the invention, for each phase line, calculating the similarity between the current waveform of the phase line and a preset current waveform, judging whether the similarity is greater than a preset similarity threshold value, if so, determining that the tractor is normal and calculating the current value of each phase line, if not, determining that the tractor has an abnormal shock, executing S404 to generate fault alarm information and stop driving the tractor, and for each phase line, calculating the difference value between the current values of the phase line and other phase lines; judging whether the difference value is smaller than a preset current threshold value or not; if yes, determining that the tractor is normal, returning to S402 to continue detecting the tractor vibration machine; if not, determining that the tractor has the abnormal vibration, executing S404 to generate fault alarm information and stopping driving the tractor.
Specifically, the current waveform of the tractor non-vibration machine during normal operation is a sine wave, when the tractor vibration machine is abnormal, the current waveform changes, the acquired current waveform can be compared with the preset current waveform, in one example, the similarity between the current waveform of each phase line and the preset current waveform can be calculated, the similarity can be an L1 distance, an L2 distance, a cosine distance and the like.
When the similarity between the current waveform of the three phase lines and the preset current waveform is greater than the preset similarity threshold, the effective values of the currents of the three phase lines can be further calculated, illustratively, for each phase line, the average value of the currents in a plurality of periods can be calculated as the effective value of the current, then the difference value between the effective value of the current of the phase line and the effective values of the currents of the other two phase lines is calculated, if the difference value is within the preset current threshold, the no-vibration machine of the tractor is determined to be abnormal, the no-vibration machine of the tractor is returned to S402 to continuously detect whether the tractor is abnormal, otherwise, the vibration machine of the tractor is determined to be abnormal, and S404 is executed to generate fault alarm information and stop driving the tractor.
And S404, generating fault alarm information and stopping driving the traction machine.
In one example, the fault alarm message may be a text message, a graphic message, or an audible and visual alarm message, and to avoid further deterioration of the hoist shaker, the hoist power may be cut off to stop operating the hoist.
According to the embodiment of the invention, after the traction machine is driven to drive the elevator car to move at the preset rotating speed, the current data of the traction machine is obtained, whether the traction machine generates the shock is judged according to the current data, the fault alarm information is generated when the shock is determined, and the traction machine is stopped to be driven, so that whether the shock occurs to the traction machine can be determined by adopting the current of the traction machine of the original current detection module of the elevator, an additional special shock sensor is not required to be added, the material cost of the elevator is reduced, and the installation procedures are reduced.
Furthermore, whether the tractor shakes or not is comprehensively judged through the similarity of the current waveform and the error of the effective value of the current, and the accuracy of the judgment result of the tractor shaking machine is improved.
Example four
Fig. 5 is a schematic structural diagram of an elevator traction machine shock detection apparatus provided in the fourth embodiment of the present invention, which may specifically include the following modules:
the traction machine driving module 501 is used for driving a traction machine to drive the elevator car to move at a preset rotating speed;
an actual time length obtaining module 502, configured to obtain an actual time length when the elevator car reaches a preset position;
a position signal acquisition module 503, configured to acquire a position signal of a position signal device when the elevator car passes through the position signal device;
a first vibration machine judging module 504, configured to determine whether a vibration machine occurs in the traction machine according to the actual time length, a preset time length, and the position signal;
and the earthquake machine abnormity alarm module 505 is used for generating fault alarm information and stopping driving the traction machine.
Optionally, the position signal acquiring module 503 includes:
and the signal acquisition submodule is used for acquiring a position signal of the current position signal device before the elevator car reaches the next position signal device when the elevator car passes through the current position signal device aiming at each position signal device, and the position signal comprises a switch-on signal and a switch-off signal.
Optionally, the first seismograph determination module 504 includes:
the time length judging submodule is used for judging whether the actual time length is greater than a preset time length or not;
a first earthquake machine abnormity determining submodule, configured to determine that an earthquake machine abnormity occurs in the traction machine, and execute an earthquake machine abnormity warning module 505;
the position signal judgment submodule is used for judging whether the quantity of the on signals and the quantity of the off signals in the position signals are more than or equal to twice;
a second earthquake machine abnormity determining submodule, configured to determine that an earthquake machine abnormity occurs in the traction machine when it is determined that the number of the turn-on signals and the turn-off signals is greater than or equal to two times, and execute an earthquake machine abnormity warning module 505;
and the earthquake machine tractor normality determining submodule is used for determining that the tractor is normal when the number of the connection signals and the disconnection signals is determined to be less than two times.
Optionally, the method further comprises:
the pulse signal acquisition module is used for acquiring a positive pulse signal and a negative pulse signal output by a rotary encoder of the elevator traction motor within a preset time length;
the total pulse number counting module is used for calculating the sum of the number of the positive pulse signals and the number of the negative pulse signals to obtain the total pulse number;
the pulse number difference value module is used for calculating the difference value between the total pulse number and the preset pulse number;
the pulse number judging module is used for judging whether the difference value is smaller than a preset difference value threshold value or not;
the traction machine normality determining module is used for determining that the traction machine is normal;
and a second earthquake machine abnormity determining module, configured to determine that an earthquake machine abnormity occurs in the traction machine, and return to the execution earthquake machine abnormity warning module 505.
Optionally, the method further comprises:
the current data acquisition module is used for acquiring current data of the traction machine;
the vibration machine judging module is used for judging whether the traction machine generates a vibration machine or not according to the current data;
and a third earthquake machine abnormity determining module, configured to determine that an earthquake machine abnormity occurs in the traction machine, and return to the execution earthquake machine abnormity warning module 505.
Optionally, the current data acquisition module includes:
and the current waveform and current value acquisition submodule is used for acquiring the current waveform and current value of the three-phase line for driving the traction machine.
Optionally, the seismograph determination module includes:
the current waveform similarity calculation operator module is used for calculating the similarity between the current waveform of the phase line and a preset current waveform aiming at each phase line;
the similarity judgment submodule is used for judging whether the similarity is greater than a preset similarity threshold value or not;
the current value calculation submodule is used for determining that the tractor is normal and calculating the current value of each phase line;
a first earthquake machine abnormity judgment submodule, configured to determine that an earthquake machine abnormity occurs in the traction machine, and execute an earthquake machine abnormity alarm module 505;
the current difference value calculation submodule is used for calculating the difference value of the current values of the phase lines and other phase lines aiming at each phase line;
the current difference value judgment submodule is used for judging whether the difference value is smaller than a preset current threshold value or not;
the traction machine normality determining submodule is used for determining that the traction machine is normal;
a second earthquake machine abnormity judgment submodule, configured to determine that an earthquake machine abnormity occurs in the traction machine, and execute an earthquake machine abnormity alarm module 505;
the elevator traction machine vibration machine detection device provided by the embodiment of the invention can execute the elevator traction machine vibration machine detection method provided by any one of the first embodiment to the third embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method.
EXAMPLE five
Fig. 6 is a schematic structural diagram of a computer device according to a fifth embodiment of the present invention. As shown in fig. 6, the computer apparatus includes a processor 600, a memory 601, a communication module 602, an input device 603, an output device 604, and a display 605; the number of processors 600 in the computer device may be one or more, and one processor 600 is taken as an example in fig. 6; the processor 600, the memory 601, the communication module 602, the input device 603, the output device 604, and the display 605 in the computer apparatus may be connected by a bus or other means, and the bus connection is exemplified in fig. 6.
The memory 601 is used as a computer readable storage medium and can be used for storing software programs, computer executable programs, and modules, such as modules corresponding to the elevator traction machine vibration detection method in this embodiment (for example, a traction machine driving module 501, an actual duration obtaining module 502, a position signal collecting module 503, a first vibration machine judging module 504, and a vibration machine abnormality alarming module 505 in the elevator traction machine vibration detection apparatus shown in fig. 5). The processor 600 executes various functional applications and data processing of the computer device by running the software programs, instructions and modules stored in the memory 601, so as to implement the elevator traction machine shock detection method described above.
The memory 601 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the computer device, and the like. Further, the memory 601 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 601 may further include memory located remotely from processor 600, which may be connected to a computer device through a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
And the communication module 602 is configured to establish a connection with the display screen and implement data interaction with the display screen.
The input means 603 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the device/terminal/server, and may also be a camera for acquiring images and a sound pickup device for acquiring audio data.
The output device 604 may include an audio device such as a speaker.
It should be noted that the specific composition of the input device 603 and the output device 604 can be set according to actual situations.
The processor 600 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the memory 601, so as to realize the elevator traction machine shock detection method.
The computer device provided by the embodiment can execute the elevator traction machine vibration machine detection method provided by any embodiment of the invention, and has corresponding functions and beneficial effects.
EXAMPLE six
The sixth embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements an elevator traction machine vibration detection method, where the elevator traction machine vibration detection method includes:
driving a traction machine to drive an elevator car to move at a preset rotating speed;
acquiring the actual time length of the elevator car reaching a preset position;
collecting a position signal of a position signal device when the elevator car passes through the position signal device;
determining whether the tractor shakes or not according to the actual time length, the preset time length and the position signal;
and if so, generating fault alarm information and stopping driving the traction machine.
Of course, the computer readable storage medium provided by the embodiment of the invention, the computer program thereof is not limited to the operation of the method as described above, and the related operation in the elevator traction machine vibration detection method provided by any embodiment of the invention can also be executed.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solution of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk, or an optical disk of a computer, and includes several instructions for enabling a computer device (e.g., a main control computer of an elevator) to execute the elevator traction machine shock detection method according to the embodiments of the present invention.
It should be noted that, in the embodiment of the elevator traction machine vibration detection apparatus, the units and modules included in the embodiment are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
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. The elevator traction machine vibration machine detection method is characterized by comprising the following steps:
driving a traction machine to drive an elevator car to move at a preset rotating speed;
acquiring the actual time length of the elevator car reaching a preset position;
collecting a position signal of a position signal device when the elevator car passes through the position signal device;
determining whether the tractor shakes or not according to the actual time length, the preset time length and the position signal;
and if so, generating fault alarm information and stopping driving the traction machine.
2. The traction machine shock detection method of claim 1, wherein the acquiring the position signal of the position signaling device as the elevator car passes by the position signaling device comprises:
for each position signal device, when the elevator car passes through the current position signal device, acquiring a position signal of the current position signal device before the elevator car reaches the next position signal device, wherein the position signal comprises a switch-on signal and a switch-off signal.
3. The method for detecting the vibration machine of the traction machine according to claim 2, wherein the determining whether the vibration machine occurs to the traction machine according to the actual time length, the preset time length and the position signal comprises:
judging whether the actual time length is greater than a preset time length or not;
if so, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor;
if not, judging whether the number of the on signals and the number of the off signals in the position signals are more than or equal to two times;
when the quantity of the connection signals and the quantity of the disconnection signals are determined to be more than or equal to two times, determining that the tractor has an abnormal shock, and executing the steps of generating fault alarm information and stopping driving the tractor;
and determining that the traction machine is normal when the number of the connection signals and the disconnection signals is determined to be less than two times.
4. The method for detecting the vibration of the traction machine according to claim 1, wherein after the driving traction machine drives the elevator car to move at a preset rotating speed, the method further comprises the following steps:
collecting a positive pulse signal and a negative pulse signal output by a rotary encoder of the elevator traction motor within a preset time length;
calculating the sum of the number of the positive pulse signals and the number of the negative pulses to obtain the total pulse number;
calculating the difference value between the total pulse number and a preset pulse number;
judging whether the difference value is smaller than a preset difference value threshold value or not;
if so, determining that the tractor is normal;
if not, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor.
5. The method for detecting the vibration of the traction machine according to claim 1, wherein after the traction machine is driven to drive the elevator car to move at a preset rotating speed, the method further comprises the following steps:
acquiring current data of the traction machine;
judging whether the tractor generates an earthquake according to the current data;
and if so, executing the steps of generating fault alarm information and stopping driving the traction machine.
6. The method of detecting a machine shock according to claim 5, wherein the obtaining current data of the machine comprises:
and acquiring the current waveform and the current value of the three-phase line for driving the traction machine.
7. The method for detecting a hoisting machine vibration machine according to claim 6, wherein the determining whether the hoisting machine has a vibration machine according to the current data comprises:
calculating the similarity between the current waveform of each phase line and a preset current waveform;
judging whether the similarity is greater than a preset similarity threshold value or not;
if so, determining that the tractor is normal, and calculating the current value of each phase line;
if not, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor;
calculating the difference value of the current values of the phase lines and other phase lines aiming at each phase line;
judging whether the difference value is smaller than a preset current threshold value or not;
if so, determining that the tractor is normal;
if not, determining that the tractor has an abnormal vibration, and executing the steps of generating fault alarm information and stopping driving the tractor.
8. The utility model provides an elevator hauler shakes quick-witted detection device which characterized in that includes:
the traction machine driving module is used for driving the traction machine to drive the elevator car to move at a preset rotating speed;
the actual time length obtaining module is used for obtaining the actual time length of the elevator car reaching a preset position;
the position signal acquisition module is used for acquiring a position signal of the position signal device when the elevator car passes through the position signal device;
the first vibration machine judging module is used for determining whether the traction machine generates vibration machine according to the actual time length, the preset time length and the position signal;
and the earthquake machine abnormity alarm module is used for generating fault alarm information and stopping driving the traction machine.
9. A computer device, characterized in that the computer device comprises:
one or more processors;
a memory for storing one or more computer programs;
when executed by the one or more processors, cause the one or more processors to implement the elevator machine shock detection method of any of claims 1-7.
10. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the elevator machine shock detection method of any of claims 1-7.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07120353A (en) * | 1993-10-27 | 1995-05-12 | Toyota Motor Corp | Device for detecting rotation error of engaging gear |
| JPH08113441A (en) * | 1994-10-14 | 1996-05-07 | Hitachi Building Syst Eng & Service Co Ltd | Abnormal vibration detector for elevator |
| JPH09247981A (en) * | 1996-03-12 | 1997-09-19 | Matsushita Electric Ind Co Ltd | Brushless dc motor |
| JPH10310339A (en) * | 1997-05-13 | 1998-11-24 | Nippon Otis Elevator Co | Elevator system |
| JP2014240817A (en) * | 2013-06-12 | 2014-12-25 | 株式会社日立製作所 | Encoder abnormality detecting device, and elevator device using encoder abnormality detecting device |
| CN107187976A (en) * | 2016-03-15 | 2017-09-22 | 株式会社日立大厦*** | Elevator ride comfortableness diagnostic device and elevator ride comfortableness diagnostic method |
| CN108507811A (en) * | 2018-04-12 | 2018-09-07 | 武汉市特种设备监督检验所 | A kind of energy-efficient permanent-magnetic synchronous tractor for elevator test platform |
| CN109361281A (en) * | 2018-12-14 | 2019-02-19 | 日立电梯电机（广州）有限公司 | Elevator, permanent-magnetic tractor and its rotor assembly |
| CN110500975A (en) * | 2018-05-16 | 2019-11-26 | 西门子（中国）有限公司 | Detection method, device, system and the storage medium of rotor upper magnetic pole setting position |
| JP2020033129A (en) * | 2018-08-28 | 2020-03-05 | 株式会社日立ビルシステム | Maintenance terminal and rotary encoder inspection method |
| CN213864888U (en) * | 2020-10-09 | 2021-08-03 | 上海三菱电梯有限公司 | Elevator traction machine loading test device |
| CN214879392U (en) * | 2021-04-09 | 2021-11-26 | 青岛梯联科技有限公司 | Detection device for elevator car shake |
-
2021
- 2021-11-29 CN CN202111437536.6A patent/CN114104896B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07120353A (en) * | 1993-10-27 | 1995-05-12 | Toyota Motor Corp | Device for detecting rotation error of engaging gear |
| JPH08113441A (en) * | 1994-10-14 | 1996-05-07 | Hitachi Building Syst Eng & Service Co Ltd | Abnormal vibration detector for elevator |
| JPH09247981A (en) * | 1996-03-12 | 1997-09-19 | Matsushita Electric Ind Co Ltd | Brushless dc motor |
| JPH10310339A (en) * | 1997-05-13 | 1998-11-24 | Nippon Otis Elevator Co | Elevator system |
| JP2014240817A (en) * | 2013-06-12 | 2014-12-25 | 株式会社日立製作所 | Encoder abnormality detecting device, and elevator device using encoder abnormality detecting device |
| CN107187976A (en) * | 2016-03-15 | 2017-09-22 | 株式会社日立大厦*** | Elevator ride comfortableness diagnostic device and elevator ride comfortableness diagnostic method |
| CN108507811A (en) * | 2018-04-12 | 2018-09-07 | 武汉市特种设备监督检验所 | A kind of energy-efficient permanent-magnetic synchronous tractor for elevator test platform |
| CN110500975A (en) * | 2018-05-16 | 2019-11-26 | 西门子（中国）有限公司 | Detection method, device, system and the storage medium of rotor upper magnetic pole setting position |
| JP2020033129A (en) * | 2018-08-28 | 2020-03-05 | 株式会社日立ビルシステム | Maintenance terminal and rotary encoder inspection method |
| CN109361281A (en) * | 2018-12-14 | 2019-02-19 | 日立电梯电机（广州）有限公司 | Elevator, permanent-magnetic tractor and its rotor assembly |
| CN213864888U (en) * | 2020-10-09 | 2021-08-03 | 上海三菱电梯有限公司 | Elevator traction machine loading test device |
| CN214879392U (en) * | 2021-04-09 | 2021-11-26 | 青岛梯联科技有限公司 | Detection device for elevator car shake |
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