CN115072511B - Device and method for detecting elevator speed limiter without carbonization drive - Google Patents
Device and method for detecting elevator speed limiter without carbonization drive Download PDFInfo
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- CN115072511B CN115072511B CN202210710166.7A CN202210710166A CN115072511B CN 115072511 B CN115072511 B CN 115072511B CN 202210710166 A CN202210710166 A CN 202210710166A CN 115072511 B CN115072511 B CN 115072511B
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000003763 carbonization Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 238000012806 monitoring device Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000005286 illumination Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000012797 qualification Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 34
- 238000005381 potential energy Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
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- 230000005291 magnetic effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/048—Testing of overspeed governor
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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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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to a device and a method for detecting an elevator speed limiter without carbonization drive, wherein the detection device comprises a driving unit and a detection unit, and the driving unit comprises a counterweight, a speed limiter test wheel, a belt friction rope, a guide rail and a baffle; the detection unit comprises an image sensor, an image acquisition system and an image processing module, and the video monitoring device acquires video data. The driving unit of the invention utilizes the weight difference of the counterweight module to accelerate and drive the speed limiter wheel, so that the speed limiter test wheel can accelerate to a rated speed value in a short time; the detection unit monitors and detects the speed of the speed limiter in the rotation process by adopting a machine vision method, firstly obtains a background image of a target object, then performs subtraction operation on the current image and the background image to obtain a difference image, and finally obtains the information of the moving target after performing binarization processing on the interpolation image. The detection method is safer, more environment-friendly, more accurate and more convenient, can reduce errors of human factors and is convenient to trace.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to an elevator speed limiter detection device and method without carbonization driving.
Background
An elevator speed limiter is one of safety control components in an elevator safety protection system. When the elevator is in operation, the elevator car overspeed and even falls, and all other safety protection devices do not work, the speed limiter and the safety tongs act in a linkage mode, so that the elevator car is stopped, and passengers and goods in the elevator are protected. The speed limiter is critical to the safe operation of the elevator, and the elevator speed limiter needs to be regularly maintained and regularly detected every year according to the national relevant regulation requirements. The elevator speed limiter detecting instrument is a detecting instrument for checking the safety use function of the elevator speed limiter, the traditional elevator speed limiter detecting instrument is large in size, high in space requirement on the installation position of the speed limiter and low in detection convenience, the driving device is generally driven by electric power or manually, the detection cost and the safety risk of electricity taking are increased, the traditional detecting device generally utilizes photoelectric or Hall magnetic effect, and small magnets or detection points placed on the speed limiter wheel are thrown away easily along with the rotation of the speed limiter wheel in the detecting process, so that the test result is influenced.
Meanwhile, the existing elevator is unreasonable in design, so that the elevator speed limiter is not beneficial to detection of the elevator speed limiter, such as: (1) The elevator speed limiter is unreasonable in position setting, for example, an obstacle is arranged on the side surface, so that the placement and detection of a traditional speed limiter testing instrument are not facilitated; (2) The power socket of the machine room is unreasonably arranged, for example, the distance between the power socket and the speed limiter is far, so that the power socket is not beneficial to the traditional speed limiter to take electricity; (3) The working place of the machine room-less speed limiter is narrow and special, a closed space is formed between the machine room-less speed limiter and the elevator car, and the speed limiter can not be conveniently detected as if a machine room elevator is normally arranged; this results in difficult detection of the elevator governor.
The existing elevator speed limiter detection device has the following problems:
(1) The driving device is driven by electric power, so that the testing cost and the safety risk of power taking are increased, and the position of an electric socket around the speed limiter is required;
(2) The driving device needs to be tightly attached to the speed limiter wheel by a technician in a hand, so that the labor cost is increased, and meanwhile, the operation technical requirement on the technician is high;
(3) The testing device is used for easily throwing away small magnets or detection points placed on the speed limiter wheel along with the rotation of the speed limiter wheel in the detection process of photoelectric or Hall magnetic effect, so that the testing result is influenced;
(4) Has strong requirements on surrounding environment of the speed limiter. The traditional speed limiter tester driving device has larger volume and higher weight, if obstacles exist around the speed limiter, the driving device is not easy to put, and due to the volume and the weight of the driving device, the machine room speed limiter tester is generally inconvenient to test the speed limiter on the elevator without a machine room;
(5) The test results were not traceable.
Disclosure of Invention
The invention provides an elevator speed limiter detection device without carbonization drive, which can solve the technical problems.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The elevator speed limiter detection device without carbonization drive comprises a driving unit and a detection unit, wherein the driving unit comprises a counterweight, a speed limiter test wheel, a belt friction rope, a guide rail and a baffle; the detection unit comprises an image sensor, an image acquisition system and an image processing module;
wherein, the speed limiter test wheel and the guide rails on both sides are all components of the elevator; the baffle is arranged below the speed limiter test wheel;
The counterweight device comprises a counterweight mass block I and a counterweight mass block II which are respectively arranged at two sides of the speed limiter wheel, wherein the weight of the counterweight mass block I is larger than that of the counterweight mass block II, and the counterweight mass block I and the counterweight mass block II are connected through a belt friction rope fixed on the speed limiter test wheel;
The counterweight device further comprises a quality difference block, wherein the weight of the quality difference block is equal to the difference value of the weight of the counterweight block I minus the counterweight block II, the quality difference block consists of an electromagnetic coil and an iron rod, the quality difference block is arranged below the counterweight block II, the quality difference block and the counterweight block II are sucked together when the coil is electrified, and the quality difference block and the counterweight block II are separated and fall on the baffle plate when the coil is powered off;
The image acquisition system comprises a video monitoring device and a wireless light illumination device, wherein the video monitoring device and the wireless light illumination device are arranged in a set range near the speed limiter test wheel; video monitoring data of the video monitoring device are transmitted to an off-well computer system in real time in a wireless manner;
the video monitoring device collects video data, and then the speed limiter action speed is detected by comparing the video data with a background model established during static state.
Further, the baffle comprises two baffles, namely a baffle I and a baffle II, wherein the baffle I and the baffle II are horizontally arranged and are respectively fixed on the guide rails on two sides by using mechanical clamping sleeves, the baffle I is arranged below the corresponding mass block I, and the baffle II is arranged below the corresponding mass block II.
Further, the video monitoring device and the wireless lamplight lighting device are respectively arranged near the speed limiter test wheel by using powerful magnets.
On the other hand, the invention also discloses a detection method of the elevator speed limiter without carbonization drive, which comprises the following steps of,
Firstly, dismantling a steel wire rope on a speed limiter wheel, and installing a friction rope on a speed limiter test wheel to ensure free falling;
then, respectively installing a first balancing weight and a second balancing weight at two ends of the friction rope, and adsorbing the poor-quality balancing weight and the second balancing weight together by using an electromagnetic method;
Then the baffle is arranged at a proper position below the counterweight, the video monitoring device and the wireless lamplight lighting device are arranged at the appointed position of the speed limiter test wheel accessory, and the automatic power-off switch is used for separating the second counterweight from the poor-quality counterweight; at this moment, the speed limiter wheel rotates in an acceleration way, in the process, the detection device also starts to work, according to the requirement of an image recognition algorithm, when the speed limiter wheel rotates to the action speed, the phenomenon that the speed limiter is blocked and stops rotating can occur, at this moment, the visual monitoring device transmits a moving image to a computer outside an elevator shaft in real time, the computer compares the value of a moving target with a set threshold value through the algorithm, the type of the image is automatically judged, the speed is calculated, and finally, the speed is compared with the national standard and the rated speed value of the elevator delivery qualification certificate to judge whether the speed meets the requirement.
Further, the computer compares the value of the moving object with a set threshold value through an algorithm, automatically judges the category of the image, and calculates the speed, wherein the method comprises the following steps:
the method comprises the steps of acquiring video data by a video monitoring device, comparing the video data with a background model established during static state to detect the action speed of a speed limiter, and specifically comprises the steps of firstly obtaining a background image where a target object is located, wherein the background image cannot have a moving target, then subtracting the current image from the background image to obtain a difference image, and carrying out binarization processing on an interpolation image to obtain the information of the moving target.
Further, the subtracting the current image and the background image to obtain a difference image, and performing binarization processing on the interpolation image to obtain information of the target, including:
Assuming that the background image is represented as a (x, y, t), t is a time variable, the moving object image is h (x, y, t), the moving image at any time is P (x, y, t), the noise image is n (x, y, t), and the differential image d (x, y, t) is represented as:
P(x,y,t)＝a(x,y,t)+h(x,y,t)
d(x,y,t)＝P(x,y,t)-h(x,y,t)+n(x,y,t)
Comparing the value of the moving object h (x, y, t) with a preset threshold value, if the pixel value is larger than the threshold value, the moving object h (x, y, t) is a foreground point of the rotation speed of the speed limiter wheel, otherwise, the moving object h (x, y, t) is a static background of the current image of the speed limiter wheel.
According to the technical scheme, the elevator speed limiter detection device without carbonization driving has the advantages of safety, environment friendliness, accuracy and convenience, the driving device belongs to a carbon-free environment-friendly type, the driving device of a traditional detection instrument is subjected to carbonization-free design, the action speed of the speed limiter is obtained by adopting a potential energy and kinetic energy interconversion method, the detection unit utilizes a machine vision method, and the action speed of a specific moment is calculated by utilizing a data processing module through inputting a contrasting original static background.
The driving device adopted by the invention is a high-low differential potential energy conversion kinetic energy device, the friction force between the friction rope and the speed limiter wheel and the mutual conversion between the potential energy and the kinetic energy drive the speed limiter to rotate, the cancellation between the potential energy and the kinetic energy can gradually increase the rotation speed, and the electric and mechanical action speeds of the speed limiter wheel are achieved. The speed (including normal rotation speed, action speed) of overspeed governor rotation process is monitored and detected to the adoption machine vision mode, can be more accurate, more convenient, reduce the error that artificial factor arouses, uses manpower sparingly the cost simultaneously, especially to no computer lab elevator, does not need the technician to wait to detect in the well, can directly operate outside the well, and the testing result has video data, conveniently tracees back.
Specifically, the invention has the following advantages:
(1) The driving unit adopts a high-low differential potential energy conversion kinetic energy device, so that measurement errors caused by operation of technicians are reduced, the power consumption risk in the measurement process is reduced, equipment cost caused by using a traditional driving machine is reduced, two professional technicians are required to be reduced to only one detector during traditional testing, manpower resources are liberated, and personnel cost is reduced;
(2) The detection unit adopts a machine vision method, so that the detection accuracy is higher, and the intelligent detection unit is more intelligent and more convenient;
(3) The invention relates to a speed limiter detection device, which has wider application range, can be used for detecting not only a speed limiter in a machine room, but also a speed limiter without a machine room, and has no requirements on whether the installation place of the speed limiter is wide, whether a proper power-taking socket is arranged on the periphery, whether the position of the speed limiter is close to a wall or not, and the like;
(4) The test results are traceable due to the preservation of the video material.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a block diagram of the structure of the present invention;
fig. 3 is an algorithmic schematic of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention.
As shown in fig. 1, the elevator speed limiter detection device without carbonization drive according to the present embodiment includes:
the speed limiter testing device mainly comprises two parts, namely a driving unit and a detecting unit. The driving unit is different from the traditional electric driving or manual driving, a device for converting potential energy into kinetic energy with high and low difference is used, and the detecting unit is carried out by adopting a machine vision method.
(1) Principle of driving device
As shown in fig. 1 and 2, 1 and 2 are weights m 1、m2 and 3 are mass differences Δm, respectively; 4 is a speed limiter test wheel; 5 is a belt friction rope; 6 and 7 are baffles for fixing the device on the guide rail by using a mechanical clamping sleeve, namely, a baffle I6 and a baffle II 7,8 and 9 are guide rails in a hoistway and are components of the elevator; 10 is a video monitoring device; 11 is a wireless light illumination device; the video monitoring device 10 and the wireless light illumination device 11 are fixed on the proper position on the guide rail by using powerful magnets.
The speed limiter test wheel 4 and the guide rails 8 and 9 are important elevator components, the speed limiter test wheel 4 is fixed on the ground of an elevator machine room for an elevator machine room, the speed limiter test wheel 4 is fixed on the top space of a hoistway for an elevator machine room-less elevator, and the speed limiter test wheel 4 is close to the guide rails 8 and 9, so that the speed limiter test is convenient, and the video monitoring device 10 and the wireless lamplight lighting device 11 are respectively fixed near the speed limiter wheel 4 by using powerful magnets, so that the detection is convenient. The baffles 6, 7 are respectively placed at the lower part of the speed limiter test wheel 44, and the friction rope 5 is long L=0.2 m-1.5m and 4 distances H=1.3L-1.7L.
The method meets the following conditions:
m1-m2＝Δm
Where v is the linear speed of the friction rope, i.e. the speed limiter wheel drive speed; m 1、m2 is the counterweight mass on both sides of the governor wheel, and m 1>m2.
Because the weights of the two sides of the belt friction rope are inconsistent, the gravity action can promote the first side 1 of the mass block with larger weight to descend, the second side 2 of the lighter mass block to ascend, the self mass of the belt friction rope is ignored, and the mass difference delta m between the two sides is the power source for driving the speed limiter wheel to accelerate rotation.
Because m 1-m2 =Δm, so neglecting the belt friction rope dead weight condition, the rope both sides are in balanced resting state, the quality difference Δm3 is by solenoid and iron stick constitution, break coil can cancel magnetism, the outage can adopt wireless mode to carry out, operating personnel carries out wireless operation outage to the well outside after having prepared in the well, can drop on baffle 6 voluntarily after left quality difference Δm3 outage, simultaneously the weight of quality piece 1 becomes relatively big and appears accelerating whereabouts phenomenon, drive overspeed governor test wheel 4 and rotate with higher speed, counter weight m 1 falls on baffle 7 at last.
(2) Detection device
The speed limiter detection device combines the defects of the existing speed limiter detection device, adopts a machine vision method to detect the action speed of the speed limiter, and comprises an image sensor, an image acquisition system, an image processing module and the like, as shown in fig. 2.
The testing device comprises a video monitoring device 10 and a wireless lamplight lighting device 11, the brightness of the wireless lamplight lighting device 11 is not lower than 300lx, the brightness range is a speed limiter testing wheel (comprising electric and mechanical action positions), the video monitoring data 10 can be transmitted to an off-shaft computer system in real time in a wireless mode, and technicians can process the data. The invention relates to a machine vision speed detection algorithm, in particular to a background difference method, which comprises the steps of firstly obtaining a background image of a target object, wherein the background image cannot have a moving target, then subtracting the current image from the background image to obtain a difference image, and then carrying out binarization processing on an interpolation image to know the information of the moving target. The specific algorithm flow is shown in fig. 3.
The background image is completely stationary, and the rest of the background remains unchanged except for the relevant area for the moving object image. Assuming that the background image is represented as a (x, y, t), the moving object image is represented as h (x, y, t) in a position coordinate system in which t is a time variable, the moving image at any time is represented as P (x, y, t), the noise image is represented as n (x, y, t), and the differential image d (x, y, t) is represented as:
P(x,y,t)＝a(x,y,t)+h(x,y,t)
d(x,y,t)＝P(x,y,t)-h(x,y,t)+n(x,y,t)
comparing the value of the moving object h (x, y, t) with a preset threshold value, if the pixel value is larger than the threshold value, the moving object h (x, y, t) is a foreground point of the rotation speed of the speed limiter wheel, otherwise, the moving object h (x, y, t) is a static background of the current image of the speed limiter wheel. Under the condition that the pixel value is smaller than the threshold value, the current background image can be ensured, the image is taken as a reference point to judge the displacement and the speed of the position movement of a certain reference point in the foreground image, the action speed of the speed limiter wheel is further obtained, and then the speed is compared with the national standard and the speed on the delivery qualification of the elevator to judge whether the speed is normal or not.
The following specifically describes the detection steps of the elevator speed limiter without carbonization driving:
the invention relates to a testing method, which comprises the steps of dismantling a steel wire rope on a speed limiter wheel 4, installing a friction rope 5 on the speed limiter testing wheel 4, guaranteeing free falling, installing a balancing weight 1 and a balancing weight 2 at two ends of the friction rope, absorbing a quality difference weight 3 together with the balancing weight 2 by an electromagnetic method, installing baffles 6 and 7 at proper positions below the balancing weight, installing a video monitoring device 10 and a wireless lighting device 11 at proper positions of the speed limiter testing wheel 4, separating the balancing weight 2 and the quality difference weight 3 by an automatic power-off switch, accelerating rotation of the speed limiter wheel 4 due to the weight difference, starting a detection device to work in the process, transmitting a moving image to a computer outside an elevator shaft in real time by the vision monitoring device 10 through an algorithm, comparing the value of the moving object 4 with a set threshold value, automatically judging the type of the image, calculating the speed, and finally judging whether the speed meets the national standard and the factory qualification value of the elevator, and judging whether the rated speed meets the rated speed or not.
In general, the speed limiter detection device has simple structure principle and wide application range, can be used for detecting the speed limiter with a machine room and a machine room, completely innovates and breaks through the traditional speed limiter detection device, mainly divides the speed limiter detection device and the speed limiter detection method into two parts, namely a driving unit and a detection unit, changes the traditional electric drive or manual drive, adopts a high-low differential potential energy conversion kinetic energy device, belongs to a carbonless power driving device, reduces errors caused by personnel operation, power taking safety risks and the like, saves detection cost, adopts a machine vision method for detecting the speed limiter action speed at any moment by comparing with a pre-input still image, is convenient and accurate and high in efficiency, and needs two technicians to cooperate in traditional detection.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above 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 above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The elevator speed limiter detection device without carbonization drive comprises a drive unit and a detection unit, and is characterized in that the drive unit comprises a counterweight, a speed limiter wheel, a belt friction rope, a guide rail and a baffle; the detection unit comprises an image sensor, an image acquisition system and an image processing module;
wherein the speed limiter wheel and the guide rails on both sides are all part of the elevator; the baffle is arranged below the speed limiter wheel;
the counterweight device comprises a counterweight mass block I and a counterweight mass block II which are respectively arranged at two sides of the speed limiter wheel, wherein the weight of the counterweight mass block I is larger than that of the counterweight mass block II, and the counterweight mass block I and the counterweight mass block II are connected through a belt friction rope fixed on the speed limiter wheel;
The counterweight device further comprises a quality difference block, wherein the weight of the quality difference block is equal to the difference value of the weight of the counterweight block I minus the counterweight block II, the quality difference block consists of an electromagnetic coil and an iron rod, the quality difference block is arranged below the counterweight block II, the quality difference block and the counterweight block II are sucked together when the coil is electrified, and the quality difference block and the counterweight block II are separated and fall on the baffle plate when the coil is powered off;
the image acquisition system comprises a video monitoring device and a wireless light illumination device, wherein the video monitoring device and the wireless light illumination device are arranged in a set range near the speed limiter wheel; video monitoring data of the video monitoring device are transmitted to an off-well computer system in real time in a wireless manner;
the video monitoring device collects video data, and then the speed limiter action speed is detected by comparing the video data with a background model established during static state.
2. The carbonization-driven elevator speed limiter detection device of claim 1, characterized in that: the baffle includes two, baffle one and baffle two, and baffle one and baffle two level set up, utilize mechanical type chucking cover to fix on the guide rail of both sides respectively, and baffle one sets up in the below that corresponds mass block one, and baffle two sets up in the below that corresponds mass block two.
3. The carbonization-driven elevator speed limiter detection device of claim 1, characterized in that: the video monitoring device and the wireless lamplight lighting device are respectively arranged near the speed limiter wheel by using powerful magnets.
4. A carbonization-driven elevator speed limiter detection method, using the carbonization-driven elevator speed limiter detection device according to any one of claims 1 to 3, characterized in that: comprises the steps of,
Firstly, dismantling a steel wire rope on a speed limiter wheel, and installing a friction rope on the speed limiter wheel to ensure free falling;
Then, respectively installing a first balancing weight and a second balancing weight at two ends of the friction rope, and adsorbing the mass difference block with the second balancing weight by using an electromagnetic method;
Then the baffle is arranged at a proper position below the counterweight, the video monitoring device and the wireless lamplight illumination device are arranged at the appointed position of the speed limiter wheel accessory, and the automatic power-off switch is used for separating the counterweight block II from the quality difference block; at this moment, the speed limiter wheel rotates in an acceleration way, in the process, the detection device also starts to work, according to the requirement of an image recognition algorithm, when the speed limiter wheel rotates to the action speed, the phenomenon that the speed limiter is blocked and stops rotating can occur, at this moment, the visual monitoring device transmits a moving image to a computer outside an elevator shaft in real time, the computer compares the value of a moving target with a set threshold value through the algorithm, the type of the image is automatically judged, the speed is calculated, and finally, the speed is compared with the national standard and the rated speed value of the elevator delivery qualification certificate to judge whether the speed meets the requirement.
5. The carbonization-driven elevator speed limiter detection method of claim 4, wherein: the computer compares the value of the moving target with a set threshold value through an algorithm, automatically judges the category of the image, and calculates the speed, wherein the method comprises the following steps:
the method comprises the steps of acquiring video data by a video monitoring device, comparing the video data with a background model established during static state to detect the action speed of a speed limiter, and specifically comprises the steps of firstly obtaining a background image where a target object is located, wherein the background image cannot have a moving target, then subtracting the current image from the background image to obtain a difference image, and carrying out binarization processing on an interpolation image to obtain the information of the moving target.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08188354A (en) * | 1995-01-10 | 1996-07-23 | Mitsubishi Denki Bill Techno Service Kk | Governor operation speed measuring device of elevator |
| US5565660A (en) * | 1994-01-05 | 1996-10-15 | Kone Oy | Apparatus in the overspeed governor of an elevator |
| JP2006321606A (en) * | 2005-05-18 | 2006-11-30 | Hitachi Building Systems Co Ltd | Method for testing elevator governor device |
| CN107161827A (en) * | 2017-06-15 | 2017-09-15 | 河北省特种设备监督检验院 | Elevator governor on-line testing instrument and its detection method |
| CN206969934U (en) * | 2017-06-15 | 2018-02-06 | 河北省特种设备监督检验院 | Elevator governor on-line testing instrument |
| CN108675078A (en) * | 2018-07-26 | 2018-10-19 | 南充市特种设备监督检验所 | Operating condition method elevator governor tester and its measurement method |
| CN111908293A (en) * | 2020-09-09 | 2020-11-10 | 上海市特种设备监督检验技术研究院 | Inspection device, speed limiting system and inspection method of elevator speed limiter |
| CN112752725A (en) * | 2018-10-02 | 2021-05-04 | 三菱电机株式会社 | Characteristic control device for speed governor system and elevator device |
| CN114458557A (en) * | 2022-02-23 | 2022-05-10 | 中国长江三峡集团有限公司 | Gravity energy storage system and energy storage method |
-
2022
- 2022-06-22 CN CN202210710166.7A patent/CN115072511B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5565660A (en) * | 1994-01-05 | 1996-10-15 | Kone Oy | Apparatus in the overspeed governor of an elevator |
| JPH08188354A (en) * | 1995-01-10 | 1996-07-23 | Mitsubishi Denki Bill Techno Service Kk | Governor operation speed measuring device of elevator |
| JP2006321606A (en) * | 2005-05-18 | 2006-11-30 | Hitachi Building Systems Co Ltd | Method for testing elevator governor device |
| CN107161827A (en) * | 2017-06-15 | 2017-09-15 | 河北省特种设备监督检验院 | Elevator governor on-line testing instrument and its detection method |
| CN206969934U (en) * | 2017-06-15 | 2018-02-06 | 河北省特种设备监督检验院 | Elevator governor on-line testing instrument |
| CN108675078A (en) * | 2018-07-26 | 2018-10-19 | 南充市特种设备监督检验所 | Operating condition method elevator governor tester and its measurement method |
| CN112752725A (en) * | 2018-10-02 | 2021-05-04 | 三菱电机株式会社 | Characteristic control device for speed governor system and elevator device |
| CN111908293A (en) * | 2020-09-09 | 2020-11-10 | 上海市特种设备监督检验技术研究院 | Inspection device, speed limiting system and inspection method of elevator speed limiter |
| CN114458557A (en) * | 2022-02-23 | 2022-05-10 | 中国长江三峡集团有限公司 | Gravity energy storage system and energy storage method |
Non-Patent Citations (1)
| Title |
|---|
| 一种曳引驱动电梯125%额定载荷制动试验无载测试装置;朱振国;中国电梯;20211001;第45-47页 * |
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