CN108423506A - Elevator weighing apparatus detection method and system - Google Patents
Elevator weighing apparatus detection method and system Download PDFInfo
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- CN108423506A CN108423506A CN201810193784.2A CN201810193784A CN108423506A CN 108423506 A CN108423506 A CN 108423506A CN 201810193784 A CN201810193784 A CN 201810193784A CN 108423506 A CN108423506 A CN 108423506A
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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
- 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
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Abstract
The present invention relates to a kind of elevator weighing apparatus detection method and systems, and this approach includes the following steps：The first weighing information of static car is obtained by weighing device；Obtain the second weighing information of the dynamic car in operation in real time by the weighing device；The running acceleration of the car is detected in real time；Whether the second weighing information described in real-time judge meets its physics law relational expression between first weighing information and the acceleration, and the weighing device is detected as if being unsatisfactory for and is broken down.The second weighing information m is judged in the above method2Whether itself and first weighing information m are met1And the physics law relational expression between acceleration a, illustrate that weighing device is normal if meeting；Illustrate the first weighing information m therein if being unsatisfactory for1, the second weighing information m2It is not right, and then may determine that the weighing device of detection weighing information breaks down.Weighing device so accurately can be comprehensively detected, avoids that deviation is different to cause the accident because weighing occurs in weighing device.
Description
Technical field
The present invention relates to elevator technology fields, more particularly to elevator weighing apparatus detection method and system.
Background technology
In elevator industry, the survey that car weight is carried out to measure deformation of elastic components amount in the way of principle is widely used
Amount, it is dynamic to implement protection to provide suitable STCP starting compensatory for elevator starter, and to detect the generation of elevator overload
Make.However, the weighing device once breaks down, it is possible to cause the accident.Such as after elastic element aging, cause to claim
Weight deviation is excessive, makes the STCP starting compensatory misalignment of elevator, causes starting-impact excessive, personal injury can be caused to passenger when serious.
In addition, if elevator occurs overload and cannot be detected in time, overload operation can be occurred, and the work of the relevant safety component of elevator
With being only capable of covering limited overload range, if overload condition is serious, may result in elevator rush to summit, the hair of the accidents such as crouching bottom
It is raw.Therefore, detection weighing device is particularly important.
It is mostly at present that effective range detection, the party are made to the output of weighing device to the detection method of weighing device in industry
Method is only capable of detecting that broken string, short circuit, sensor output voltage exception, fraction setup error etc. just fill problem, also it is many its
Its problem cannot detect, such as the linearity of weighing device is abnormal, and k values are abnormal, and deviation of weighing exception etc. cannot be detected, nothing
The failure of method complete detection weighing device.Also there is the example using two or more weighing devices in industry, can lead under the occasion
It crosses and means that the output of multiple weighing devices compares is detected into failure, still, be based on cost consideration, in most cases
Only configure a weighing device.So traditional detection method can not complete detection weighing device failure.
Invention content
Based on this, it is necessary to for traditional detection method can not complete detection weighing device failure the problem of, provide one
Kind can be with the elevator weighing apparatus detection method and system of complete detection weighing device failure.
A kind of elevator weighing apparatus detection method, includes the following steps：
The first weighing information of static car is obtained by weighing device；
Obtain the second weighing information of the dynamic car in operation in real time by the weighing device；
The running acceleration of the car is detected in real time；
Whether the second weighing information described in real-time judge meets it between first weighing information and the acceleration
Physics law relational expression, the weighing device is detected as if being unsatisfactory for and is broken down.
In above-mentioned elevator weighing apparatus detection method, the first weighing information m of static car is obtained by weighing device1And
Second weighing information m of running cage2, then obtain the running acceleration of car.During operation above and below car,
Car will produce weightless and overweight phenomenon, and Overweight and Zero Gravity phenomenon meets resultant force and is equal to the physics law that quality is multiplied by acceleration,
And then the first weighing information m1, the second weighing information m2And there is the relational expression for meeting above-mentioned physics law in acceleration a.So sentencing
Disconnected second weighing information m2Whether itself and first weighing information m are met1And the physics law relational expression between acceleration a, if meeting
Then illustrate that weighing device is normal；Illustrate the first weighing information m therein if being unsatisfactory for1, the second weighing information m2It goes wrong,
And then it may determine that the weighing device of detection weighing information breaks down.Weighing device so accurately can be comprehensively detected,
The problems such as deviation is different because weighing occurs in weighing device is avoided to cause the accident.
The physics law relational expression is in one of the embodiments,：m2=m1(1+a/g), wherein m1It is described first
Weighing information, m2For second weighing information, a is the acceleration, and g is acceleration of gravity；If judging m2>m1(1+a/g)
Or m2<m1(1+a/g) is then detected as the weighing device and breaks down.
If judging m in one of the embodiments,2>m1(1+a/g)+c or m2<m1(1+a/g)-c is then detected as described
Weighing device breaks down；
Wherein, c is detection threshold.
The detection threshold is the 10% of elevator payload ratings in one of the embodiments,.
The weighing device includes detecting element and the elasticity member being connect with the car in one of the embodiments,
Part, it is described that first weighing information of static car is obtained by weighing device and is obtained in real time in operation by the weighing device
Dynamically the step of the second weighing information of the car includes：
The detecting element detects the deformation quantity of the elastic element and sends out analog voltage signal；
The analog voltage model is converted to digital signal to obtain first weighing information or described second weigh letter
Breath.
In one of the embodiments, the step of first weighing information that static car is obtained by weighing device it
Before, it is further comprising the steps of：
Judge whether elevator prepares to close the door to start；
If so, the first weighing information of the static car obtained by the weighing device.
It is described in one of the embodiments, to obtain the second of the running car in real time by the weighing device
It is further comprising the steps of before the step of weighing information：
Judge the elevator whether in operation；
If so, obtain the second weighing information of the running car in real time by the weighing device, and inspection in real time
Survey the running acceleration of the car.
A kind of elevator weighing apparatus detecting system includes the car run along hoistway, weighing set on the cage bottom
Device, acceleration detecting and weighing device detection unit, the weighing device detect the weight of the car, the acceleration
Degree detection device detects the acceleration of the car operation, and the weighing device detection unit connect and connects with the weighing device
The first weighing information of the static car and the second weighing information of the running dynamic car are received, and described is weighed
Device detection unit is connect with the acceleration detecting receives the acceleration, and whether judges second weighing information
Meet its physics law relational expression between first weighing information and the acceleration, is detected as if being unsatisfactory for described
Weighing device breaks down.
The physics law relational expression is m in one of the embodiments,2=m1(1+a/g), wherein m1It is described first
Weighing information, m2For second weighing information, a is the acceleration, and g is acceleration of gravity.
Further include being connected between the weighing device and the weighing device detection unit in one of the embodiments,
Weighing information receive feedback unit, the weighing device includes detecting element and the elastic element that is connect with the car,
The detecting element is used to detect the deformation quantity of the elastic element and sends out analog voltage signal, and the weighing information receives anti-
Feedback unit receives the analog voltage signal and the analog voltage signal is converted to digital signal to be claimed with obtaining described first
Weight information and second weighing information.
Description of the drawings
Fig. 1 is the structural schematic diagram of elevator weighing apparatus detecting system in one embodiment of the invention；
Fig. 2 is the module diagram of elevator weighing apparatus detecting system shown in Fig. 1；
Fig. 3 is the relation schematic diagram between two parameters of weighing device in elevator weighing apparatus detecting system shown in Fig. 1；
Fig. 4 is the change schematic diagram of car operational process parameters in elevator weighing apparatus detecting system shown in Fig. 1；
Fig. 5 is the flow diagram of elevator weighing apparatus detection method in one embodiment of the invention；
Fig. 6 is the flow diagram of another embodiment of elevator weighing apparatus detection method shown in Fig. 5；
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.Keep the understanding to the disclosure more saturating on the contrary, purpose of providing these embodiments is
It is thorough comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the Listed Items of pass.
As shown in Figs. 1-2, the elevator weighing apparatus fault detection system 100 in one embodiment of the invention includes along hoistway 11
The car 10 of operation, weighing device 30, acceleration detecting 50 and weighing device detection unit 70 set on 10 bottom of car,
Weighing device 30 detects the weight of car 10, the acceleration a that detection car 10 is run in real time of acceleration detecting 50, dress of weighing
Set the first weighing information m of static state car 10 when detection unit 70 connect with weighing device 30 and receives static1And it is moved in operation
Second weighing information m of state car 102, and weighing device detection unit 70 connect real-time reception with acceleration detecting 50 and moves
The acceleration a of state car 10 in the process of running, and judge the second weighing information m2Whether itself and first weighing information m are met1And
Physics law relational expression between acceleration a is detected as the failure of weighing device 30 if being unsatisfactory for.
Weighing device 30 is set to 10 bottom of car in above-mentioned elevator weighing apparatus detecting system 100, when car 10 is static
The first weighing information m of static car 10 is obtained by weighing device 301, obtained and moved by weighing device 30 when car is run
Second weighing information m of state car 102, and acceleration a when car 10 is run is obtained by acceleration detecting 50.Car
10 will appear overweight and weightlessness in the process of running, and Overweight and Zero Gravity phenomenon meets resultant force and is multiplied by acceleration equal to quality
Physics law, and the resultant force that is subject in the process of running of car 10 is the holding power and its own gravity that weighing device 10 provides
The sum of, the holding power and the second weighing information m that wherein weighing device 10 provides dynamic car 102It is related, car 10 itself
Gravity and static car 10 the first weighing information m1It is related, so the second weighing information m in 10 operational process of car2With
First weighing information m1And there are physics law relational expressions between acceleration a.Finally, weighing device detection unit 70 receives first
Weighing information m1, the second weighing information m2And acceleration a, and judge the second weighing information m2Whether meet it to weigh letter with first
Cease m1And the physics law relational expression between acceleration a, illustrate that weighing device 30 breaks down if being unsatisfactory for, is said if meeting
Bright weighing device 30 is normal, so accurately can comprehensively detect weighing device 30, avoids because weighing device 30 is weighed
The problems such as deviation is abnormal causes the accident.
During 10 complete uplink and downlink of lift car, when ascending for elevator accelerates and downlink is slowed down, car 10 occurs super
Reconstructed image, 30 pressure of weighing device is big when more static than car 10, the second weighing information m2It is larger；Elevator downlink accelerate and on
When row slows down, weightlessness occurs for car, and 30 pressure of weighing device is small when more static than car 10, the second weighing information m2Compared with
It is small.If weighing device is abnormal, it is necessarily unsatisfactory for this physics law.Therefore, according to above-mentioned physics law, judge second
Weighing information m2Whether itself and first weighing information m are met1And the physics law relational expression between acceleration a, it can detect to claim
Refitting sets whether 30 break down.
Specifically, to 10 force analysis of running car it is found that weighing device 30 is to the size etc. of 10 holding power of car
In the size from 10 pressure of car that weighing device 30 is subject to, that is, it is equal to the second weighing information m2With multiplying for gravity acceleration g
Product.The first weighing information m when car 10 is static1Numerical values recited be equal to the quality of its own, and car 10 run when weight
Power is equal to the first weighing information m1With the product of gravity acceleration g, so the resultant force m suffered by running car 101A=m2g-
m1G, i.e. m2=m1(1+a/g).So if the second weighing information m obtained by weighing device 302Meet relational expression m2=m1(1
+ a/g), then meet car 10 it is overweight and weightless when physics law, then illustrate that weighing device 30 is normal；If not satisfied, then illustrating
Weighing device 30 breaks down, and so accurately can comprehensively detect weighing device 30, finds the linear of weighing device 30 in time
The problems such as degree is abnormal, and k values are abnormal, and deviation of weighing is abnormal.
Further, weighing device 30 includes detecting element and the elastic element being connect with car 10, and detecting element is used
In the deformation quantity for detecting elastic element and analog voltage signal is sent out, can so be learnt by detecting the deformation quantity of elastic element
Pressure suffered by weighing device 30.In this embodiment, elastic element is rubber element, and detecting element is Distance-sensing
Device, range sensor are used to detect the decrement of rubber element and send out analog voltage signal.Also, range sensor passes through inspection
Survey the decrement of the distance between itself and cage bottom indirect detection rubber element.As shown in figure 3, rubber element decrement is larger
When, the distance between range sensor and cage bottom become smaller, and range sensor exports the analog voltage signal compared with low amplitude value, instead
The higher analog voltage signal of then output amplitude.
Specifically, as shown in figure 4, when ascending for elevator accelerates to slow down with downlink, overweight phenomenon, weighing device occur for car 10
30 pressures are big when more static than car 10, and the decrement of rubber element becomes larger, between range sensor and cage bottom away from
From becoming smaller, range sensor exports the analog voltage signal compared with low amplitude value；When elevator downlink accelerates and uplink is slowed down, car occurs
Weightlessness, 30 pressure of weighing device is small when more static than car 10, and the decrement of rubber element becomes smaller, range sensor with
The distance between cage bottom becomes larger, and range sensor exports the analog voltage signal of higher magnitude.
Elevator weighing apparatus detecting system 100 further includes being connected between weighing device 30 and weighing device detection unit 70
Weighing information receive feedback unit 60, weighing information receive feedback unit 60 receive analog voltage signal simultaneously analog voltage is believed
Number being converted to digital signal obtains the first weighing information m1With the second weighing information m2.I.e. weighing information reception feedback unit 60 will
The analog voltage signal that weighing device 30 is sent out is converted to digital signal, so that weighing device detection unit 70 is using as number
First weighing information m of signal1With the second weighing information m2Carry out judgement detection.
Acceleration detecting 50 is the rotary encoder being installed in machine shaft, by feeding back institute to rotary encoder
The speed obtained, which is differentiated, can be obtained the real time acceleration of car 10.Alternatively, acceleration detecting 50 is to be installed on car
Acceleration transducer on 10, installation site and specific element for acceleration detecting 50 do not limit herein, can
Detect acceleration when car 10 is run.
Elevator weighing apparatus detecting system 100 further includes switch board 80 and car top electric appliance box 90, weighing device detection unit
70 are set in switch board 80, and weighing information receives feedback unit 60 and is set in car top electric appliance box 90.
As seen in figs. 5-6, detection method includes the following steps for the elevator weighing apparatus in one embodiment of the invention：
Step S100 obtains the first weighing information m of static car 10 by weighing device 101。
When car 10 is static, the first weighing information m for being obtained by weighing device 101It is exactly the quality of car 10.Tool
Body, weighing device 10 includes detecting element and the elastic element being connect with car 10, and step S100 includes step S120 and step
Rapid S140.
Step S120, the deformation quantity of detecting element detection elastic element simultaneously send out analog voltage signal；
Step S140 converts analog voltage signal to digital signal and obtains the first weighing information m1, so as to later use
The first weighing information m as digital signal1Further calculated.
Step S300 obtains the second weighing information m of dynamic car 10 in operation by weighing device 10 in real time2。
As shown in figure 4, car 10 is in upper and lower operation, it may appear that overweight or weightlessness.Overweight phenomenon occurs for car 10
When, 30 pressure of weighing device is big when more static than car 10, i.e. the second weighing information m2It is larger.Weightlessness occurs for car 10
When, small, i.e. the second weighing information m when 30 pressure car 10 of weighing device is static2It is smaller.It follows that on car 10
During lower operation, because car 10 is overweight and weightless, the pressure that car 10 suffered by weighing device 30 applies is in dynamic
In variation, pass through the second weighing information m of 30 acquisition of mounted box of weighing2Constantly change also with the operating status of car 10.
Specifically, step S300 includes step S320 and step S340.
Step S320, the deformation quantity of detecting element detection elastic element simultaneously send out analog voltage signal；
Step S340 converts analog voltage signal to digital signal and obtains the second weighing information m2, so as to later use
The second weighing information m as digital signal2Further calculate and judges.
Step S500 detects 10 running acceleration a of car in real time.
Specifically, the acceleration a of car 10 is obtained by acceleration detecting 50.
Step S700, the second weighing information of real-time judge m2Whether itself and first weighing information m are met1And between acceleration a
Physics law relational expression；
If not satisfied, being then detected as the failure of weighing device 30；If satisfied, then continuing step S700.
That is, car 10 is during upper and lower operation, generated overweight and weightlessness and first is weighed letter
Cease m1, the second weighing information m2And acceleration a is related, and meet resultant force and be equal to the physics law that quality is multiplied by acceleration.Work as title
Refitting set 30 it is normal when, the second weighing information m2Meet itself and the first weighing information m1And the physics law relationship between acceleration a
Formula；When weighing device 30 breaks down, the second weighing information m2Then it is unsatisfactory for itself and the first weighing information m1And acceleration a it
Between physics law relational expression.So by judging whether physics law relational expression is true, it accurately can comprehensively detect and weigh
The accuracy that device 30 measures, avoid weighing device 30 occur weighing deviation it is abnormal the problems such as cause elevator that accident occurs.
Specifically, it is m as above-mentioned analysis can obtain physics law relational expression2=m1(1+a/g).If judging in step S700
m2>m1(1+a/g) or m2<m1(1+a/g), that is, judge the second weighing information m2It is unsatisfactory for physics law relational expression m2=m1
(1+a/g) is then detected as the weighing device and breaks down.Because the parameters of running car 10 necessarily meet object
Reason rule relational expression can illustrate the first weighing information m therein if physics law relational expression is untenable1, second weigh
Information m2There is mistake, and then may determine that the weighing device 30 of detection weighing information breaks down.
In one embodiment, judge m in step S7002>m1(1+a/g)+c or m2<m1When (1+a/g)-c, then detect
It breaks down for the weighing device 30；Wherein, c is detection threshold.In deterministic process, in inequality m2>m1The base of (1+a/g)
Detection threshold c is added on plinth, obtains inequality m2>m1(1+a/g)+c improves the upper base for being judged as that weighing device 30 breaks down
Quasi- value；In inequality m2<m1Detection threshold c is added on the basis of (1+a/g), obtains inequality m2<m1(1+a/g)-c, reduction are sentenced
Break the lower a reference value to break down for weighing device 30.So as the second weighing information m2When the deviation theory value of very little amplitude,
Think to belong to normal condition, is not judged as that weighing device 30 breaks down, to avoid the malfunction of fault detect.
Specifically, detection threshold c is the 10% of elevator payload ratings.
In one embodiment, further include step S110 before step S100.
Step S110 judges whether elevator prepares to close the door and starts；
If carrying out step S100, continue step S110 if not.In this way, can ensure to obtain the first weighing information m1
When elevator prepare to close the door and start, car 10 remains static, it is ensured that the first weighing information m1Accuracy, avoid obtaining
The first weighing information m1There is deviation.
In one embodiment, further include step S200 before step S300.
Whether step S200 judges elevator in operation；
If so, carrying out step S300 and step S500；If it is not, return to step S100.In this way, can ensure acquisition second
Weighing information m2And when acceleration a, elevator has been closed the door startup, and car 10 is in operating status, it is ensured that the second weighing information m2
And the accuracy of acceleration a, avoid the second weighing information m obtained2And acceleration a has deviation.
In above-mentioned elevator weighing apparatus detection method, the first weighing information of static car 10 is obtained by weighing device 30
m1And the second weighing information m of running cage 102, then obtain 10 running acceleration of car.It is run in about 10 car
During, car 10 will produce weightless and overweight phenomenon, and Overweight and Zero Gravity phenomenon meets resultant force and is multiplied by acceleration equal to quality
Physics law, and then the first weighing information m1, the second weighing information m2And exists between acceleration a and meet above-mentioned physics law
Relational expression.So judging the second weighing information m2Whether itself and first weighing information m are met1And the physics between acceleration a
Rule relational expression illustrates that weighing device 30 is normal if meeting；Illustrate the first weighing information m therein if being unsatisfactory for1, second
Weighing information m2There is mistake, and then may determine that the weighing device 30 of detection weighing information breaks down.It so can be accurate
Really comprehensive detection weighing device 30 avoids the problems such as deviation is different because weighing occurs in weighing device 30 from causing the accident.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of elevator weighing apparatus detection method, which is characterized in that include the following steps：
The first weighing information of static car is obtained by weighing device；
Obtain the second weighing information of the dynamic car in operation in real time by the weighing device；
The running acceleration of the car is detected in real time；
Whether the second weighing information described in real-time judge meets its object between first weighing information and the acceleration
Rule relational expression is managed, the weighing device is detected as if being unsatisfactory for and is broken down.
2. elevator weighing apparatus detection method according to claim 1, which is characterized in that the physics law relational expression
For：m2=m1(1+a/g), wherein m1For first weighing information, m2For second weighing information, a is the acceleration, g
For acceleration of gravity；If judging m2>m1(1+a/g) or m2<m1(1+a/g) is then detected as the weighing device and breaks down.
3. elevator weighing apparatus detection method according to claim 2, which is characterized in that if judging m2>m1(1+a/g)+
C or m2<m1(1+a/g)-c is then detected as the weighing device and breaks down；
Wherein, c is detection threshold.
4. elevator weighing apparatus detection method according to claim 3, which is characterized in that the detection threshold is elevator volume
Determine the 10% of load-carrying.
5. elevator weighing apparatus detection method according to claim 1, which is characterized in that the weighing device includes detection
Element and the elastic element being connect with the car, it is described that first weighing information of static car is obtained by weighing device and is led to
Crossing the step of weighing device obtains the second weighing information of the dynamic car in operation in real time includes：
The detecting element detects the deformation quantity of the elastic element and sends out analog voltage signal；
It converts the analog voltage model to digital signal and obtains first weighing information or second weighing information.
6. elevator weighing apparatus detection method according to claim 1, which is characterized in that described to be obtained by weighing device
It is further comprising the steps of before the step of first weighing information of static car：
Judge whether elevator prepares to close the door to start；
If so, the first weighing information of the static car obtained by the weighing device.
7. elevator weighing apparatus detection method according to claim 1 or 6, which is characterized in that described to be weighed by described
Device is further comprising the steps of before obtaining the step of the second weighing information of the running car in real time：
Judge the elevator whether in operation；
If so, obtaining the second weighing information of the running car in real time by the weighing device, and institute is detected in real time
State the running acceleration of car.
8. a kind of elevator weighing apparatus detecting system, which is characterized in that include the car run along hoistway, be set to the car bottom
Weighing device, acceleration detecting and the weighing device detection unit in portion, the weighing device detect the weight of the car,
The acceleration real-time detection apparatus detects the acceleration of the car operation, and the weighing device detection unit is weighed with described
It the second of the dynamic car weighs in first weighing information of the static car and operation when device connects and receives static
Information, and the weighing device detection unit connect the real-time reception dynamic car with the acceleration detecting and is running
In the acceleration, and judge whether second weighing information meets itself and first weighing information and the acceleration
Between physics law relational expression, the weighing device is detected as if being unsatisfactory for and is broken down.
9. elevator weighing apparatus detecting system according to any one of claims 8, which is characterized in that the physics law relational expression is m2
=m1(1+a/g), wherein m1For first weighing information, m2For second weighing information, a is the acceleration, and g attaches most importance to
Power acceleration.
10. elevator weighing apparatus detecting system according to claim 8, which is characterized in that further include being connected to the title
Refitting sets the weighing information between the weighing device detection unit and receives feedback unit, and the weighing device includes detection member
Part and the elastic element being connect with the car, the detecting element are used to detect the deformation quantity of the elastic element and send out
Analog voltage signal, the weighing information receive feedback unit and receive the analog voltage signal and by the analog voltage signal
Digital signal is converted to obtain first weighing information and second weighing information.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109607106A (en) * | 2018-12-21 | 2019-04-12 | 首钢京唐钢铁联合有限责任公司 | A method of weigher accuracy on detection steel coil tray supply line |
| CN109693982A (en) * | 2017-10-24 | 2019-04-30 | 上海三菱电梯有限公司 | Elevator meausring apparatus abnormality judgment method |
| CN111470425A (en) * | 2020-04-09 | 2020-07-31 | 微特技术有限公司 | Self-adaptive weighing method for crane |
| CN112079221A (en) * | 2019-06-12 | 2020-12-15 | 东芝电梯株式会社 | Load detection device for elevator |
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| CN109693982A (en) * | 2017-10-24 | 2019-04-30 | 上海三菱电梯有限公司 | Elevator meausring apparatus abnormality judgment method |
| CN109693982B (en) * | 2017-10-24 | 2023-02-03 | 上海三菱电梯有限公司 | Abnormity judgment method for elevator weighing device |
| CN109607106A (en) * | 2018-12-21 | 2019-04-12 | 首钢京唐钢铁联合有限责任公司 | A method of weigher accuracy on detection steel coil tray supply line |
| CN112079221A (en) * | 2019-06-12 | 2020-12-15 | 东芝电梯株式会社 | Load detection device for elevator |
| CN111470425A (en) * | 2020-04-09 | 2020-07-31 | 微特技术有限公司 | Self-adaptive weighing method for crane |
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