CN102344066A - Elevator brake anomaly detection system and method thereof - Google Patents

Elevator brake anomaly detection system and method thereof Download PDF

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Publication number
CN102344066A
CN102344066A CN2011101938453A CN201110193845A CN102344066A CN 102344066 A CN102344066 A CN 102344066A CN 2011101938453 A CN2011101938453 A CN 2011101938453A CN 201110193845 A CN201110193845 A CN 201110193845A CN 102344066 A CN102344066 A CN 102344066A
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drg
reference value
work
temperature
brake
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CN2011101938453A
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CN102344066B (en
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曾我宗则
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Toshiba Elevator and Building Systems Corp
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Toshiba Elevator Co Ltd
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Abstract

The invention provides an elevator brake anomaly detection system and a method thereof, wherein the operation of a brake is monitored at an appropriate reference value corresponding to the temperature characteristic of the brake. The elevator brake anomaly detection system comprises a brake for braking the rotation of a traction engine; an elevator control device which at least controls the brake; a brake working state detecting device for detecting the opening and closing state of the brake; a temperature detecting device for detecting the temperature of the brake; and a storage device for storing associated temperatures of the reference value determined by the temperature characteristics of the working time of the brake. The working time of the brake is from an elevator control device outputting a brake work instruction to the brake in a closed state. In addition, a reference value determining device with reference values is provided, wherein reference values for judging the abnormal condition of a brake is determined according to the temperature information of the brake and the reference data thereof. In addition, a brake anomaly detection device is provided for measuring the working time of the brake. The reference value is determined by comparing the measured brake working time and a reference valve determined by the reference value determining device.

Description

The drg abnormality detection system and the method for elevator
Technical field
Embodiment of the present invention relates to the drg abnormality detection system and the method for elevator.
Background technology
In recent years; Through the drg working state detection device that detects the working of brakes state is set; Keep watch on the matching of drg working state detection device, under the situation that detects the drg operation irregularity, stop elevator obligated carrying out aspect the safety benchmark the drg work order.
On the other hand, there is the situation that applies sound proofing material as the countermeasure that is used to reduce working of brakes sound.But sound proofing material hardens along with decrease of temperature, thus under the low situation of the ambient temperature of drg the working of brakes time elongated.
In the past, even depend under the situation of temperature, also set and detected the unusual a reference value of working of brakes with the regular hour value at the drg work-hours.Be made as the work-hours under the mean temperature if will be set in the abnormality detection a reference value of drg abnormal detector, the unusual risk of erroneous detection working of brakes when then existing in winter or cold.Be made as the work-hours under the low temperature if will be set in the abnormality detection a reference value of drg abnormal detector, then the abnormality detection of the drg under the high temperature postpones, and existence can't be satisfied the problem points that as far as possible early detects from the secure context needs.
Patent documentation 1: TOHKEMY 2004-338863 communique
Summary of the invention
The present invention puts in view of the above problems and makes, and its purpose is to provide drg abnormality detection system or the method for the temperature through keeping watch on drg to keep watch on the elevator of drg work with the cooresponding suitable benchmark of the temperature characterisitic of drg.
The drg abnormality detection system of the elevator of embodiment of the present invention possesses: drg, braking make the rotation of the towing machine of car up-down; Elevator control gear is controlled towing machine and drg at least; The drg working state detection device, the open and-shut mode of detection drg; And temperature-detecting device, the temperature of detection drg, output brake temperature information.This system also possesses a reference value data storage apparatus; To join ground with temperature correlation based on a reference value data that the temperature characterisitic of drg work-hours is confirmed and store, said drg work-hours is the drg work order of exporting closed drg from elevator control gear becomes the time till the state of closing to drg.This system also possesses a reference value determination device, is used to judge the unusual a reference value of drg work based on brake temperature information of exporting from temperature-detecting device and a reference value data decision that is stored in a reference value data storage apparatus.This system also possesses the drg abnormal detector; Instrumentation plays from the drg working state detection device from the moment of elevator control gear output brake work order and transmits drg and become the drg work-hours till moment of drg work state information of the state of closing, relatively the drg work-hours of instrumentation and by a reference value of a reference value determination device decision.
Description of drawings
Fig. 1 is the figure of summary of structure example of braking abnormality detection system of the elevator of expression first embodiment.
Fig. 2 is an example of the temperature dependent diagram of curves of expression drg work-hours and a reference value data.
Fig. 3 is other examples of the temperature dependent diagram of curves of expression drg work-hours and a reference value data.
Fig. 4 be the expression first embodiment work one the example diagram of circuit.
Fig. 5 is an example of the temperature dependent diagram of curves of expression drg work-hours and a reference value data and the second a reference value data.
Fig. 6 be the expression second embodiment work one the example diagram of circuit.
Fig. 7 is the figure of summary of structure example of braking abnormality detection system of the elevator of expression the 3rd embodiment.
Fig. 8 is the example of diagram of curves of correction that is used to illustrate a reference value of the 3rd embodiment.
Fig. 9 be the expression the 3rd embodiment work one the example diagram of circuit.
(nomenclature)
102 cars, 104 main ropes, 106 towing machines, 108 counterbalanceds weight, 110 drgs, 112 elevator control gears, 114 drg working state detection device, 116 temperature-detecting devices, 118 a reference value determination devices, 120 a reference value data storage apparatuss, 122 drg abnormal detectors, 202; The temperature characterisitic data of 302 drg work-hourses, 204,304 a reference value data, first reference value data, 506 second a reference value data, 724 a reference value correcting devices, the revised temperature characterisitic data of 802 drg work-hourses, 804 revised a reference value data
The specific embodiment
Below suitably carry out explanation as the embodiment of an example of the present invention with reference to accompanying drawing.
(first embodiment)
Fig. 1 representes the schematic configuration example of the drg abnormality detection system of the elevator in first embodiment.Car 102 is captured in not shown car frame, and the motor of car frame through the propulsion source that makes elevator and travel that is installed on an end of main rope 104 travels in elevating road (not shown) with the towing machine 106 with rope sheave of hanging main rope.Other end hanging balancing at main rope weighs 108.The switching of the drg 110 of the rotation of the rotation of towing machine 106 and braking towing machine 106 is by elevator control gear 112 controls.At this, for the purpose of simplifying the description, a drg 110 only is shown in the drawings, but, a plurality of drgs is set usually from the viewpoint of the safety of elevator operation.Elevator control gear 112 through control towing machine 106 car 102 is travelled, arrive at the layer stop.
The open and-shut mode that drg working state detection device 114 detects drg 110.At this, the state that closes of drg 110 means that drg 110 has applied the state of braking for the rotation of braking towing machine 106, and the state of opening of drg 110 means the state that drg 110 does not apply.The temperature that temperature-detecting device 116 detects drg 110.Temperature-detecting device 116 for example confirms that by the thermally dependent resistor that is installed on drg 110, diode or thermocouple equitemperature sensor with according to the temperature information of the drg of exporting from temperature sensor 110 the temperature detection unit of the temperature of drg 110 constitutes.The temperature detection unit through test in advance, resolve or simulation etc. based on the temperature of confirming drg 110 by the detected temperature information of temperature sensor.
Be passed to a reference value determination device 118 of a reference value (the following a reference value that abbreviates as sometimes) of normality that decision is used to judge the work-hours of drg 110 by the temperature information of temperature sensor 116 detected drgs 110.Be connected with a reference value data storage apparatus 120 on a reference value determination device 118; This a reference value data storage apparatus will join ground with temperature correlation based on a reference value data that the temperature characterisitic of drg work-hours is confirmed to be preserved, and this drg work-hours is the time that becomes from the drg work order of being exported closed drg 110 by elevator control gear 112 to drg 110 till the state of closing.In a reference value data storage apparatus 120, comprise non-volatile semiconductor memories such as flash memory or magnetic storage medium etc.
One example of the temperature characterisitic of drg work-hours is shown with dot-dash curve 202 among Fig. 2.In one embodiment; For fear of the erroneous detection of the drg abnormal work that causes based on state-detection cycle time of the individual difference of each drg or drg working state detection device 114 or error that both sides' reason causes, with the cooresponding a reference value of a reference value data that is stored in a reference value data storage apparatus 120 be set at have more than needed, than the big slightly value of braking work-hours.For example, the drg work-hours is δ when the temperature of drg 110 is To, and a reference value is made as δ '.In the case, with the curve 204 of temperature dependency shown in the solid line of Fig. 2 of the cooresponding a reference value of a reference value data that is stored in a reference value data storage apparatus 120.
In other embodiments, represent with step-characteristic with the temperature dependency of the cooresponding a reference value of a reference value data that is stored in a reference value data storage apparatus 120.In the case, the step function 302 of the temperature characterisitic of drg work-hours shown in Fig. 3 dotted line.In this mode, drg 110 desirable range of temperaturess are divided into a plurality of zones, drg work-hours in each temperature province that is divided into is made as certain value.For example, as shown in Figure 3, the approximate drg work-hours of temperature province a, b, c is made as α, β, γ respectively.With the cooresponding a reference value of a reference value data that is stored in a reference value data storage apparatus 120 be set at have more than needed, than the big slightly value of drg work-hours.For example, as shown in Figure 3, with a reference value of temperature province a, b, c be made as respectively α ' (α '>α), β ' (β '>β), γ ' (γ '>γ).In the case, with step function 304 that kind of temperature dependency shown in solid line among Fig. 3 of the cooresponding a reference value of a reference value data that is stored in a reference value data storage apparatus 120.Actual drg characteristic is not the step-characteristic of step function 302 that kind shown in Fig. 3 dotted line, but can simplify setting through being made as step-characteristic.Aviation value or maxim that the approximate drg work-hours of each range of temperatures that is divided into or a reference value can be made as each temperature province.In addition, can also confirm through method of least square.In addition; Drg work-hours under the boundary temperature of adjacent temperature province or a reference value can be made as the drg work-hours or a reference value of arbitrary side's temperature province, perhaps are made as the intermediate value of the work-hours of two temperature provinces or the aviation value of a reference value etc.
A reference value determination device 118 is based on a reference value of the normality of the work that is used to judge drg 110 from the temperature information of the drg 110 of temperature-detecting device 116 output and a reference value data decision that is stored in a reference value data storage apparatus 120.In one embodiment, a reference value determination device 118 is based on detecting from the temperature information decision a reference value in the moment of the drg work order of elevator control gear 112 output.For example; The curve 204 such storages of a reference value data shown in solid line among Fig. 2 in a reference value data storage apparatus 120; When the cooresponding brake temperature of temperature information with the drg of exporting from temperature-detecting device 116 110 was To, a reference value determination device 118 was as a reference value decision δ ' of drg abnormality detection.In addition; The a reference value data are stored like step function 304 that kind shown in realizing among Fig. 3 in a reference value data storage apparatus 120; With when the cooresponding brake temperature of temperature information of the drg 110 of temperature-detecting device 116 output is in the temperature province a of Fig. 3, a reference value determination device 118 is as a reference value decision α ' of drg abnormality detection.
After a reference value of decision drg abnormality detection, a reference value determination device 118 is delivered to drg abnormal detector 122 with a reference value of decision.A reference value determination device 118 is connected with elevator control gear 112 for example as shown in Figure 1, can keep watch on from the drg work order of elevator control gear 112 outputs.In one embodiment; A reference value determination device 118 detected from the moment of the drg work order of elevator control gear 112 outputs, will be delivered to drg abnormal detector 122 based on a reference value of the temperature information decision of transmitting from temperature-detecting device 116.In this embodiment, when detecting next drg work order, a reference value after the renewal is delivered to drg abnormal detector 122.
Drg abnormal detector 122 receives a reference value by 118 decisions of a reference value determination device, and the open and-shut mode information that receives drgs 110 from drg working state detection device 114.Drg abnormal detector 122 is connected with elevator control gear 112, can keep watch on from the drg work order of elevator control gear 112 outputs.When elevator control gear 112 detects the drg work order, drg abnormal detector 122 instrumentations from the output brake work order the time be carved into the time drg work-hours till state by drg working state detection device 114 detected drgs 110 becomes the state of closing.When instrumentation drg work-hours, can use real-time clock (RTC) etc.Drg abnormal detector 122 compares the drg work-hours of instrumentation with a reference value that receives from a reference value determination device 118, judge whether drg 110 is normal.Equal or be shorter than under the situation of a reference value that receives from a reference value determination device 118 in the length of the drg work-hours of instrumentation, it is normal to be judged as drg 110, end process.
In one embodiment, when being judged to be when surpassing from a reference value that a reference value determination device 118 receives by the drg work-hours of drg abnormal detector 122 instrumentations, it is unusual to be judged to be drg 110, and this situation is passed to elevator control gear 112.Receive the instruction of elevator control gear 112 outputs the stopping car 102 of drg operation irregularity information.
As stated, carried out the routine explanation of schematic configuration with reference to Fig. 1 as the elevator brake abnormality detection system of an example of the present invention.Elevator control gear shown in Figure 1 112 is installed through so-called embedded system usually, and this embedded system comprises that hardware resource such as microcomputer, ROM, RAM or magnetic memory apparatus and elevator control the software of needs.In addition, the part of drg working state detection device 114, temperature-detecting device 116, a reference value determination device 118 and drg abnormal detector 122 also can be installed through embedded system.In addition, the mode that conduct separates with elevator control gear 112 in Fig. 1 illustrates a reference value determination device 118, a reference value data storage apparatus 120 and drg abnormal detector 122, but also these devices can be built in common elevator control gear.
Below with reference to an example of the work of flowchart text embodiment.Shown in 4, be used to illustrate the diagram of circuit of an example of the work of embodiment.When from the drg work order of the closed drg 110 of elevator control gear 112 output; The drg 110 that is in out state begins to change into the state of closing, and drg abnormal detector 122 detects with a reference value determination device 118 and exported the drg work order from elevator control gear 112 in S402.Detecting the drg abnormal detector 122 of having exported the drg work order, in S404, to begin instrumentation be the drg work-hours as the time that the state of drg 110 becomes till the state of closing, and keep watch on the open and-shut mode information of the drg 110 that is detected by drg working state detection device 114.At step S406, drg abnormal detector 122 judges based on the open and-shut mode information from the drg 110 of drg working state detection device 114 whether drg 110 becomes the state of closing.Do not become when closing state when in S406, being judged as drg 110, drg abnormal detector 122 is proceeded the instrumentation of drg work-hours.Become when closing state when in S406, being judged as drg 110, work gets into S408, and the instrumentation that drg abnormal detector 122 finishes the drg work-hourses is obtained the instrumentation result of drg work-hours.
When in S402, detecting when elevator control gear 112 has been exported the drg work order, with above-mentioned work concurrently, a reference value determination device 118 is read the temperature information by temperature-detecting device 116 detected drgs 110 in S410.Be used to judge the unusual a reference value of the work of drg 110 then in S412 a reference value determination device 118 temperature information that is based on the drg 110 that S410 obtains and a reference value data decision that is kept at a reference value data storage apparatus 120.Mode with curve 204 for example shown in Figure 2 is preserved a reference value data in a reference value data storage apparatus 120, when the temperature of drg 110 is To, as a reference value decision δ '.In a reference value data storage apparatus 120, for example preserve with the mode of step function 304 as shown in Figure 3, when the temperature of drg 110 is in the temperature province a, as a reference value decision α '.
The then a reference value that in the instrumentation result of the drg work-hours that S414 relatively obtains in S408 and S412, determines of drg abnormal detector 122 α ' for example.
Judge at S416 whether the drg work-hours of instrumentation equals or be shorter than a reference value of decision.When the drg work-hours that is judged as instrumentation at S416 equaled or is shorter than a reference value of decision, it was in proper working order to be judged to be drg.On the other hand, when the drg work-hours that is judged as instrumentation at S416 greater than the decision a reference value the time, be judged to be the drg operation irregularity at S418.When being judged to be the drg operation irregularity, in the instruction of travelling of S420 elevator control gear 112 outputs stopping car 102.
According to the embodiment of above explanation, can not carry out erroneous detection and carry out the suitable supervision of drg work temperature variant drg work-hours.
(second embodiment)
The schematic configuration of the schematic configuration of the drg abnormality detection system of the elevator of second embodiment and first embodiment shown in Figure 1 example is same, but different with first embodiment aspect a part of structural element and work.Therefore, be that the center describes with the aspect different with first embodiment.
A reference value data storage apparatus 120 joins ground with a reference value data and temperature correlation and preserves in the first embodiment, and not only a reference value data but also the second a reference value data also join ground with temperature correlation and preserve in second embodiment.For fear of misunderstanding, in the explanation of this embodiment, a reference value data are designated as first Reference data.The value of the second a reference value data is greater than the value of first reference value data.
A temperature dependent example of representing the second a reference value data with the curve 506 of dotted line among Fig. 5.One example of the temperature characterisitic of drg work-hours is shown through dot-dash curve 202 in the drawings simultaneously, a temperature dependent example of first reference value data is shown through block curve 204.Drg work-hours under the temperature T o, first reference value and second a reference value are respectively δ, δ 1 ', δ 2 '.Data manifestation shown in Figure 5 and data manifestation shown in Figure 2 are same, clearly also can represent the second a reference value data and first reference value data with the step function of that kind shown in Figure 3.
A reference value determination device 118 not only determines first reference value also to determine second a reference value based on the temperature information and the first reference value data and the second a reference value data that are kept at a reference value data storage apparatus 120 of the drg of exporting from temperature-detecting device 116 110.In one embodiment, a reference value determination device 118 is based on detecting from the temperature information decision first reference value and second a reference value in the moment of the drg work order of elevator control gear 112 output.For example; In a reference value data storage apparatus 120 with first reference value and second a reference value for example curve shown in solid line among Fig. 5 204 and the curve 506 such storages shown in the dotted line respectively; When being To with the cooresponding brake temperature of temperature information from the drg 110 of temperature-detecting device 116 output; A reference value determination device 118 is as first reference value decision δ 1 ', as second a reference value decision δ 2 '.
In addition, drg abnormal detector 122 not only also compares the drg work-hours of instrumentation with first reference value with second a reference value.
Below with reference to an example of the work of flowchart text second embodiment.Expression is used to illustrate the diagram of circuit of an example of the work of second embodiment among Fig. 6.To with as shown in Figure 4 diagram of circuit in working phase with work mark and Fig. 4 with reference to label identical with reference to label.The work of S402, S404, S406, S408 is identical with content illustrated in fig. 4, gets into S614 when processing finishes among the S408.
In addition; The temperature information post-processing that obtains drg 110 at S410 gets into S612, and a reference value determination device 118 is based on the cooresponding first reference value of temperature (for example To) (for example δ 1 ') and second a reference value (for example δ 2 ') of temperature information with the first reference value data of preserving at a reference value data storage apparatus 120 and the decision of the second a reference value data and the drg 110 of the drg of obtaining among the S410 110.Handle then and get into S614.
The first reference value and second a reference value that determine among the instrumentation result of the drg work-hours of in S614, obtaining among the drg abnormal detector 122 comparison S408 and the S612.Then, judge at S416 whether the drg work-hours of instrumentation equals or be shorter than the first reference value of decision.When the drg work-hours that in S416, is judged as instrumentation equaled or is shorter than the first reference value of decision, it was in proper working order to be judged to be drg.
On the other hand,, be judged to be the drg operation irregularity, handle get into S620 at S418 when the drg work-hours that in S416, is judged as instrumentation during greater than the first reference value of decision.Judge in S620 whether the drg work-hours of instrumentation equals or be shorter than second a reference value of decision.When the drg work-hours at S620 judgement instrumentation equaled or is shorter than second a reference value of decision, drg abnormal detector 122 was passed to elevator control gear 112 with this situation.Then elevator control gear 112 makes car 102 low speed drivings to nearest layer in S622.When car 102 arrives in nearest layer, in the instruction of travelling of S420 elevator control gear 112 outputs stopping car 102.
When the drg work-hours that is judged as instrumentation at S620 surpasses second a reference value of decision, handle getting into S420, the instruction of travelling of elevator control gear 112 outputs stopping car 102.
Embodiment according to the above description; Owing to reasons such as the dish of the pad of drg and towing machine or the gap between the drum are bad; Surpass first reference value and under the situation of second a reference value with 110 work of interior time drg; To layer recently, can prevent that the car person of taking from closing into car through low speed driving only thus.
(the 3rd embodiment)
The schematic configuration example of the schematic configuration of the drg abnormality detection system of the elevator of the 3rd embodiment and first embodiment shown in Figure 1 is same, but except the aspect difference of additional a reference value correcting device, a part of structural element is different with work.Therefore, be that the center describes with the aspect different with first embodiment.
The schematic configuration example of the drg abnormality detection system of the elevator of the 3rd embodiment shown in Fig. 7.Additional a reference value correcting device 724 in the system of first embodiment as shown in Figure 1.For example in presentation graphs 8 the temperature dependent a reference value data of a reference value of the curve shown in the solid line 204 expression, also keep data in a reference value data storage apparatus 120 by the temperature characterisitic of the drg work-hours of dot-dash curve 202 expressions.The temperature information that a reference value correcting device 724 for example receives drg 110 via a reference value determination device 118.A reference value correcting device 724 is confirmed the cooresponding drg work-hours of temperature with drg 110 based on the temperature information and the temperature characterisitic data that are stored in the drg work-hours of a reference value data storage apparatus 120 of the drg 110 that receives.The value of brake temperature To that is stored in drg work-hours and a reference value of a reference value data storage apparatus 120 is respectively δ and δ '.In the following description, a reference value correcting device 724 is confirmed δ as the drg work-hours.In addition, as a simple example, suppose that brake temperature is the situation of To.Under this situation, the drg work-hours that a reference value correcting device 724 receives instrumentation from drg abnormal detector 122.Drg work-hours by drg abnormal detector 122 instrumentations is made as η.When receiving the drg work-hours of instrumentation, a reference value correcting device 724 calculate the drg work-hours η of actual instrumentation and the drg work-hours δ that reads from a reference value data storage apparatus 120 between to depart from be correction Δ t=η-δ.A reference value correcting device 724 is delivered to a reference value determination device 118 with the correction Δ t that calculates.A reference value determination device 118 will add that with the definite a reference value δ ' of a reference value data that is stored in a reference value data storage apparatus 120 value that obtains from the correction Δ t of a reference value correcting device 724 transmission is that δ '+Δ t decision is an a reference value based on the temperature information of the drg of exporting from temperature-detecting device 116 110.In addition, data manifestation shown in Figure 8 and data manifestation shown in Figure 2 are same, clearly also the temperature characterisitic and a reference value of drg work-hours can be represented with step function shown in Figure 3.
According to this embodiment; When the drg work-hours of reality changes with respect to the drg work-hours of preserving in advance; Through revising a reference value, can and drg through the time change or the pad of drg and the suitable work that the dish of towing machine or the gap change between the drum etc. carry out drg are adaptably kept watch on.
In one embodiment; Also can use correction Δ t; To be shown in dashed curve 802 by the data correction of the temperature characterisitic of the drg work-hours of dot-dash curve 202 expression; With the temperature dependent a reference value data correction of a reference value shown in the expression fine line curve 204 is heavy line curve 804, is kept at a reference value data storage apparatus 120 as new data.
In another embodiment, a reference value correcting device 724 transmits correction Δ t to drg abnormal detector 122.Drg abnormal detector 122 judges whether the correction Δ t that transmits has surpassed predetermined value Δ τ.Surpassed at correction Δ t under the situation of predetermined value Δ τ, drg abnormal detector 122 is judged to be the drg operation irregularity, and output stops the instruction of travelling of car 102.Through such work, can prevent on the drg operating characteristic that is stored in a reference value data storage apparatus 120 in advance and actual drg work-hours, to exist take place under the situation about departing from more greatly, because the drg delays in work makes car 102 departs from respect to arriving at layer, promptly so-called prominent on or prominent under.
As stated, carried out the routine explanation of schematic configuration with reference to Fig. 7 as the elevator brake abnormality detection system of an example of the present invention.A reference value correcting device 724 shown in Figure 1 also can be installed through so-called embedded system, and this embedded system comprises hardware resource and the needed softwares of a reference value correction such as microcomputer, ROM, RAM or magnetic memory apparatus.In addition, the mode that conduct separates with elevator control gear 112 in Fig. 7 illustrates a reference value correcting device 724, but also it can be built in elevator control gear.
Below with reference to an example of the work of flowchart text the 3rd embodiment.Be used to illustrate the diagram of circuit of an example of the work of the 3rd embodiment shown in Fig. 9.To with as shown in Figure 4 diagram of circuit in working phase with work mark and Fig. 4 with reference to label identical with reference to label.The work of S402, S404, S406, S408 is identical with content illustrated in fig. 4, gets into S914 when the processing of instrumentation drg work-hours η finishes among the S408.
In addition, in S410, obtain the temperature information post-processing entering S911 of drg 110.In S911 based on a reference value data that keep in the temperature information of the drg of obtaining among the S410 110 and the memory storage 120; Confirm the value δ ' with the cooresponding a reference value data of temperature (for example To) of drg 110 by a reference value determination device 118; And, confirm the cooresponding drg work-hours of the temperature T o δ with drg 110 by a reference value correcting device 724 based on the temperature information of drg 110 and the temperature characterisitic data that are kept at the drg work-hours of memory storage 120.Then a reference value correcting device 724 is calculated poor Δ t=η-δ between the drg work-hours δ that confirms among drg work-hours η and the S911 of instrumentation among the S408 as correction in S912, and the correction Δ t that calculates is delivered to a reference value determination device 118.A reference value determination device 118 is that δ '+Δ t is as a reference value with the value δ ' of a reference value data definite among the S911 with the correction Δ t sum of transmitting in S913.Then handle and get into S914.
Drg abnormal detector 122 compares drg work-hours η that obtains at S408 and a reference value δ '+Δ t that in S913, determines in S914.Judge at S416 whether the drg work-hours η of instrumentation equals or be shorter than a reference value δ ' of decision+Δ t then.As the drg work-hours η that is judged as instrumentation at S416 during greater than a reference value δ '+Δ t of decision, in S418, be judged to be drg work for unusual, drg abnormal detector 122 is delivered to elevator control gear 112 with this situation.Then export the instruction of travelling that stops car 102 at S420 elevator control gear 112.
On the other hand, equal or be shorter than at the drg work-hours η that S416 is judged as instrumentation under the situation of a reference value δ '+Δ t of decision, judge by drg abnormal detector 122 whether correction Δ t equals or be shorter than predetermined positive value delta τ at S922.Be judged as that correction Δ t equals or when being shorter than predetermined positive value delta τ at S922, it is in proper working order to be judged to be drg, and processing finishes.Be judged as correction Δ t when having surpassed predetermined positive value delta τ at S922, be judged to be the drg operation irregularity, the instruction that travelling of car 102 is stopped in 112 outputs of S420 elevator control gear at S418.
In addition; For example can be judged as after correction Δ t equals or be shorter than predetermined positive value delta τ at S922; Using correction Δ t will be shown in dashed curve 802 by the data correction of the temperature characterisitic of the drg work-hours of dot-dash curve shown in Figure 8 202 expressions; With the temperature dependent a reference value data correction of a reference value shown in the expression fine line curve 204 is heavy line curve 804, is kept at a reference value data storage apparatus 120 as new data.
Several embodiments of the present invention is illustrated, and these embodiments are pointed out as an example, are not intended to limit scope of invention.These new embodiments can be implemented in every way, in the scope of the purport that does not break away from invention, can carry out various omissions, displacement, change.These embodiments or its distortion are contained in scope of invention and main idea, and are contained in the invention and the equivalency range thereof of claim record.

Claims (12)

1. the drg abnormality detection system of an elevator is characterized in that possessing:
Drg, braking make the rotation of the towing machine of car up-down;
Elevator control gear is controlled said towing machine and said drg at least;
The drg working state detection device detects the open and-shut mode of said drg;
Temperature-detecting device detects the temperature of said drg, output brake temperature information;
The a reference value data storage apparatus; To join ground with temperature correlation based on a reference value data that the temperature characterisitic of drg work-hours is confirmed and store, said drg work-hours is the drg work order of exporting closed said drg from said elevator control gear becomes the time till the state of closing to said drg;
The a reference value determination device, based on said brake temperature information and the said a reference value data that are stored in said a reference value data storage apparatus from said temperature-detecting device output, decision is used to judge the unusual a reference value of said drg work; And
The drg abnormal detector; Instrumentation plays from said drg working state detection device from the moment that said elevator control gear is exported said drg work order and transmits said drg and become the drg work-hours till moment of drg work state information of the state of closing, relatively the drg work-hours of instrumentation and by a reference value of said a reference value determination device decision.
2. the drg abnormality detection system of elevator according to claim 1 is characterized in that,
Predetermined range of temperatures is divided into a plurality of temperature provinces, and said a reference value data are certain in each temperature province.
3. the drg abnormality detection system of elevator according to claim 1 and 2 is characterized in that,
Said a reference value determination device will be delivered to said drg abnormal detector based on a reference value from the temperature information decision of said temperature-detecting device transmission detecting from moment of the said drg work order of said elevator control gear output.
4. the drg abnormality detection system of elevator according to claim 1 is characterized in that,
Said elevator control gear is being judged to be drg work-hours by said drg abnormal detector instrumentation when having surpassed a reference value by said a reference value determination device decision, and output stops the instruction of said car.
5. the drg abnormality detection system of elevator according to claim 1 is characterized in that,
Said a reference value data storage apparatus also is stored in the second a reference value data of bigger than the value of the said a reference value data at each temperature value of said drg,
Said a reference value determination device also determines second a reference value based on the said brake temperature information from said temperature-detecting device output with the said second a reference value data that are stored in said a reference value data storage apparatus,
When said drg abnormal detector has surpassed a reference value that is determined by said a reference value determination device at the drg work-hours that is judged to be said instrumentation, generate the drg anomaly detection signal,
Said drg abnormal detector has surpassed a reference value of said decision at the drg work-hours that is judged to be said instrumentation but has equaled or when being shorter than second a reference value of said decision; This situation is passed to said elevator control gear, and said elevator control gear makes said car low speed driving to the instruction of the said car of layer back output stopping recently.
6. the drg abnormality detection system of elevator according to claim 1 is characterized in that,
Said system also possesses a reference value correcting device,
Said a reference value data storage apparatus is also stored the temperature characterisitic data of said working of brakes time,
Said a reference value correcting device is based on said brake temperature information and the temperature characterisitic data that are stored in the said brake working time of said a reference value data storage device from said temperature-detecting device output; Confirm the brake working time corresponding with said brake temperature information; Calculate definite brake working time and by the difference of brake working time of said brake abnormal detector instrumentation as correction value; The said correction value of calculating is delivered to said a reference value determination device
The value decision that said a reference value determination device will add the above correction gained based on the value of the definite a reference value data of said brake temperature information and the said a reference value data that are stored in said a reference value data storage apparatus is a reference value.
7. the drg abnormality detection system of elevator according to claim 6 is characterized in that,
Said drg abnormal detector the said correction from the transmission of said a reference value correcting device surpassed predetermined on the occasion of the time, it is unusual to be judged to be said working of brakes.
8. the drg method for detecting abnormality of an elevator is characterized in that, comprising:
The drg mode of operation detects step, detects the open and-shut mode of the drg of the rotation of braking the towing machine that makes the car up-down;
The temperature detection step detects the temperature of said drg, output brake temperature information;
The a reference value deciding step; Be based on the said brake temperature information of said temperature detection step output and the unusual a reference value that the decision of a reference value data is used to judge said drg work; Said a reference value data and temperature correlation are stored in a reference value data storage apparatus with joining; Confirm that based on the temperature characterisitic of drg work-hours said drg work-hours is the drg work order of exporting closed said drg from elevator control gear becomes the time till the state of closing to said drg;
Drg work-hours instrumentation step, instrumentation play at said drg mode of operation from the moment of exporting said drg work order and detect the drg work-hours till step is transmitted said drg and become moment of drg work state information of the state of closing; And
Whether drg abnormality detection step, the drg work-hours of judging instrumentation equal or are shorter than a reference value in said a reference value deciding step decision.
9. the drg method for detecting abnormality of elevator according to claim 8 is characterized in that, said method also comprises:
In said drg abnormality detection step, be judged to be when the drg work-hours of said drg work-hours instrumentation step instrumentation has surpassed a reference value in said a reference value deciding step decision, output stops the step of the instruction of said car.
10. the drg method for detecting abnormality of elevator according to claim 8 is characterized in that, said method also comprises:
The said second a reference value data that are based on the said brake temperature information of said temperature detection step output and also are stored in said a reference value data storage apparatus, the value bigger than the value of said a reference value data determine the step of second a reference value;
Be judged to be when the drg work-hours of the said instrumentation of said drg abnormality detection step has surpassed a reference value in said a reference value deciding step decision, generating the step of drg anomaly detection signal; And
Surpassed a reference value of said decision but equaled or when being shorter than second a reference value of said decision being judged to be drg work-hours at the said instrumentation of said drg abnormality detection step, made said car low speed driving to the step of the instruction of the said car of layer back output stopping recently.
11. the drg method for detecting abnormality of elevator according to claim 8 is characterized in that, said method also comprises:
Be based on the said brake temperature information and the temperature characterisitic data that also are stored in the said drg work-hours of said a reference value data storage apparatus of the output of said temperature detection step, confirm and the step of the cooresponding drg work-hours of said brake temperature information; And
Calculate said definite drg work-hours and calculate step as the correction of correction in the difference of the drg work-hours of said drg work-hours instrumentation step instrumentation,
In said a reference value deciding step, the value decision that will add the above correction gained based on the value of the definite a reference value data of said brake temperature information and the said a reference value data that are stored in said a reference value data storage apparatus is a reference value.
12. the drg method for detecting abnormality of elevator according to claim 8; It is characterized in that; Said method also comprises: said correction calculate said correction that step calculates surpassed predetermined on the occasion of the time, be judged to be the unusual step of said working of brakes.
CN201110193845.3A 2010-07-22 2011-07-12 Elevator brake anomaly detection system and method thereof Expired - Fee Related CN102344066B (en)

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CN106199398B (en) * 2015-05-28 2018-11-13 株式会社日立大厦系统 Abnormal detector and method for detecting abnormality
CN106199398A (en) * 2015-05-28 2016-12-07 株式会社日立大厦系统 Abnormal detector and method for detecting abnormality
CN104925615A (en) * 2015-07-09 2015-09-23 苏州润吉驱动技术有限公司 Elevator brake temperature measuring equipment
CN107337042A (en) * 2016-04-28 2017-11-10 通力股份公司 The scheme of proximity transducer temperature variation effects in compensating elevator mechanical brake
CN107337042B (en) * 2016-04-28 2020-12-18 通力股份公司 Solution for compensating the effect of temperature variations of proximity sensors in the mechanical brake of an elevator
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CN112292341A (en) * 2018-06-25 2021-01-29 三菱电机株式会社 Control system for elevator
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