CN107337041B - A kind of system acquiring elevator cab movement information - Google Patents
A kind of system acquiring elevator cab movement information Download PDFInfo
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- CN107337041B CN107337041B CN201710057107.3A CN201710057107A CN107337041B CN 107337041 B CN107337041 B CN 107337041B CN 201710057107 A CN201710057107 A CN 201710057107A CN 107337041 B CN107337041 B CN 107337041B
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- elevator
- uplink
- thresholding
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- sampled point
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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
Abstract
The invention discloses a kind of systems for acquiring elevator cab movement information, comprising: acceleration module completes the acquisition of an initial data within a certain period of time, and carries out sum-average arithmetic to the data of regulation points, as a sampled point；Flash chip stores the statistical data of elevator；Real time clock management unit provides clock interface for system；Single-chip microprocessor MCU is according to acceleration information, analyze the motion information of lift car, it include: upper (lower) row: when negative (just) of sampled point is more than upper (lower) row thresholding to range value, calibration be negative it is (just) cumulative to acceleration, at this time elevator just upper (lower) row accelerate；Then judge sampled point it is positive it is (negative) to range value whether be more than upper (lower) row thresholding, if so, calibration be positive (negative) it is cumulative to acceleration, at this time elevator just upper (lower) row deceleration；Finally judge whether elevator meets and stop terraced condition, if so, primary upper (lower) row process terminates.
Description
Technical field
The present invention relates to elevator technology field more particularly to a kind of systems for acquiring elevator cab movement information.
Background technique
In recent years with the fast development of elevator industry, elevator accident increases therewith, the generation of elevator accident in addition to electricity
There are problems in relation to except for terraced product itself design, installation and usage mode, and elevator maintenance existing defects are also accident main cause.It presses
According to national regulation, elevator maintenance unit should have special season maintenance, half a year maintenance and yearly maintenance.Existing maintenance body
System, maintenance staff cannot provide targeted maintenance according to the frequency of use of every elevator or rate of breakdown, and by
The phenomenon that often will appear " maintenance on paper ", " do not meet accident and do not show up " during the harmful competition of maintenance industry, maintenance.
Summary of the invention
To solve the above problems, the present invention provides a kind of system for acquiring elevator cab movement information, and give maintenance staff
And elevator uses unit to provide the data of fine maintenance as reference.
The present invention provides a kind of systems for acquiring elevator cab movement information.The acquisition elevator cab movement information
System includes:
Acceleration module, and single-chip microprocessor MCU data connection, for acquiring the acceleration information of carriage, within a certain period of time
The acquisition of an initial data is completed, and sum-average arithmetic is carried out to the data of regulation points, as a sampled point；
Flash chip, and single-chip microprocessor MCU data connection, for storing the statistical data of elevator；
Real time clock management unit, and single-chip microprocessor MCU data connection, for providing clock interface for system；
Single-chip microprocessor MCU, for analyzing the motion information of lift car according to acceleration information, comprising:
Uplink: when the negative sense range value of sampled point is more than uplink thresholding, it is cumulative to be demarcated as negativeacceleration, at this time elevator
Just accelerate in uplink；Whether the positive range value for then judging sampled point is more than uplink thresholding, if so, being demarcated as positive acceleration
Spend it is cumulative, at this time elevator just uplink slow down；Finally judge whether elevator meets and stop terraced condition, if so, a uplink process
Terminate；
Downlink: when the positive range value of sampled point is more than downlink thresholding, it is cumulative to be demarcated as positive acceleration, at this time elevator
Just accelerate in downlink；Whether the negative sense range value for then judging sampled point is more than downlink thresholding, if so, being demarcated as negative sense acceleration
Spend it is cumulative, at this time elevator just downlink slow down；Finally judge whether elevator meets and stop terraced condition, if so, a downlink process
Terminate.
Preferably, the every 5ms of the acceleration module completes the acquisition of an initial data, and sums to 5 point datas
After average, as a sampled point, the sample rate of signal is 25ms/point.
Preferably, uplink thresholding and downlink thresholding are 30mg, i.e., as one when the amplitude absolute value of sampled point is more than 30mg
A effective sampling points.
Preferably, during judging upstream or downstream, sampling number is 15 points, when effective sampling points are 10, meter
Upstream or downstream.
Preferably, further comprise the process for judging elevator cage door switch:
Open the door: when the negative sense range value of sampled point is more than enabling thresholding, it is cumulative to be demarcated as negativeacceleration, then judges
Whether the positive range value of sampled point is more than enabling thresholding, if so, being judged as just in door opening state；
Close the door: when the positive range value of sampled point is more than to close the door to prescribe a time limit, it is cumulative to be demarcated as positive acceleration, and then judgement is adopted
Whether the negative sense range value of sampling point is more than shutdown thresholding, if so, being judged as the state of shutdown；
Enabling thresholding and shutdown thresholding are 20mg.
Preferably, further comprise: air pressure module, and single-chip microprocessor MCU data connection, for acquiring atmospheric pressure in carriage
Change information；
Single-chip microprocessor MCU calculates the variation of elevator height, formula are as follows: Δ H according to the difference that atmospheric pressure in compartment changes
=Z2-Z1=18400* (1+aT) * lgP1/P2, in formula, P1 is the air pressure in Z1 height, and P2 is the air pressure in Z2 height, a=
1/273, the T air column mean temperature between Z1 to Z2；Air pressure module acquires lift car and runs first 3 seconds to after stopping 3 seconds
Atmospheric pressure value, respectively as in formula: P1, P2 of Δ H=Z2-Z1=18400* (1+aT) * lgP1/P2, built in air pressure module
Temperature sensor provide air column mean temperature T, be then calculated from the formula elevator height variation.
Preferably, it before the distance and the current floor that calculate elevator operation, needs to do initial alignment to elevator floor；It is first
First manual control elevator one floor run, and according to the acquisition of an acceleration module initial data of every 5ms completion, and count 5
After carrying out sum-average arithmetic, as a sampled point, the sample rate of signal is the layer height that 25ms/point obtains every floor, in turn
It is high to obtain total building, and will be saved in number of floor levels, floor height, total building height write-in FLASH chip as elevator running parameter；Then distinguish
Uplink displacement and the descending displacement of lift car are calculated, uplink displacement and descending displacement are that the displacement run by elevator single adds up
, cumulative uplink, which is displaced, when elevator is run up simultaneously resets descending displacement, and descending displacement is added up when elevator is run down simultaneously
Uplink is displaced and is reset；Finally, when elevator under uplink state uplink displacement reach configuration total building it is high when, then by current floor
Be demarcated as uppermost storey, similarly, when elevator under downstream state descending displacement reach configuration total building it is high when, then by current floor
It is demarcated as lowest floor；Complete floor calibration after, after elevator each run according to this row ladder distance and configuration
The layer height of every floor calculates floor locating for elevator；After the layer of the floor and every floor that obtain elevator operation is high, statistics one
The operation total displacement of elevator in the section time, and elevator total displacement is stored in FLASH chip according to certain format.
Preferably, the motion information of single-chip microprocessor MCU analysis lift car further comprises:
Stop ladder: when the amplitude absolute value of sampled point is less than uplink thresholding or downlink thresholding, and the collected electricity of air pressure module
When terraced speed is less than 30cm/s, it is judged as that elevator stops scalariform state.
Preferably, further comprise: WIFI module, it is electric for being transmitted by WIFI agreement with single-chip microprocessor MCU data connection
The statistical data of ladder uses mobile phone, the pcs terminal equipment of unit personnel to maintenance staff or elevator.
The utility model has the advantages that acquiring elevator cab movement information system using this mode, hardware installation is easy, and measurement accuracy is high,
It is able to record the information such as the motion frequency of elevator, provides foundation for fine maintenance.And this system is independently of the movement of elevator itself
Information judges system, does not influence the normal operation of elevator.
Detailed description of the invention
Fig. 1 is the elevator operating statistic system construction drawing of the embodiment of the present invention.
Fig. 2 is that the gate of the embodiment of the present invention once opens the door data sample.
Fig. 3 is that the gate of the embodiment of the present invention is once closed the door data sample.
Fig. 4 is upstream data sample of carriage of the embodiment of the present invention.
Fig. 5 is downlink data sample of carriage of the embodiment of the present invention.
Fig. 6 is the data sample of the baroceptor of the embodiment of the present invention.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
The present invention is described in further detail in conjunction with the accompanying drawings and embodiments.It is understood that specific implementation described herein
Example is used only for explaining the present invention rather than limiting the invention.It also should be noted that for ease of description, attached drawing
In only some but not all of the content related to the present invention is shown.
The hardware composition of the present embodiment mainly has power module, 3-axis acceleration sensor (i.e. acceleration module), air pressure
Sensor (i.e. air pressure module), FLASH chip, WIFI module, single-chip microprocessor MCU, real time clock management unit R TC etc..Hardware cell
Figure is as shown in Figure 1.
3-axis acceleration sensor is mainly used for acquiring the uplink signal of elevator, and downlink signal stops terraced signal, door switch letter
Number.
Baroceptor is mainly used for acquiring the terraced distance of row of elevator, floor, elevator speed, and to the uplink signal of elevator
And downlink signal provides auxiliary judgment.
FLASH chip is used to store the statistical data of elevator, and ensures that these data are not lost in the case where power supply power-fail
It loses.
The statistical data that WIFI module is mainly used for transmitting elevator by WIFI agreement uses list to maintenance staff or elevator
The terminal devices such as mobile phone, the computer of position personnel.
Single-chip microprocessor MCU is mainly used for completing the acquisition and operation to 3-axis acceleration sensor, baroceptor data, so
Operation result is saved in FLASH chip afterwards, and when being connected to the calling request of WIFI data, control WIFI module sends data.
Real time clock management unit R TC (Real-Time Clock) provides clock interface for system.
1, the realization of acceleration sensor module
Acceleration sensor chip in the present invention uses the ADXL345 3-axis acceleration sensor of ADI company, measurement
Precision is about 4mg/LSB.According to hardware installation mode, using the switch of the X-axis acquisition elevator cage door of 3-axis acceleration sensor
Information acquires the uplink and downlink of lift car using Y-axis and stops terraced information.
According to hardware installation mode, the changing rule of the door opening process acceleration transducer X-axis data of elevator cage door is: quiet
Only state → negativeacceleration it is cumulative → positive acceleration is cumulative → stationary state, i.e. a door opening action includes a gate
Acceleration and moderating process.Door closing procedure is the inverse process to open the door.When programming, switch gate mistake is acquired according to this kinetic characteristic
Journey.
According to hardware installation mode, the changing rule of ascending for elevator brief acceleration sensor Y-axis data is: stationary state →
Negativeacceleration is cumulative → at the uniform velocity state → positive acceleration it is cumulative → stationary state, i.e., a uplink movement includes an elevator
The acceleration of carriage, at the uniform velocity, moderating process.Downlink process is the inverse process of uplink.
According to a large amount of tests, data processing method of the present invention to acceleration transducer are as follows: every 5ms completes an original number
According to acquisition, and after carrying out sum-average arithmetic to 5 point datas, as a sampled point, so the sample rate of signal is 25ms/
point。
According to the motion amplitude of gate, the acceleration of elevator switch door is judged that thresholding is determined as 20mg, i.e. sampled point
As an effective sampling points when amplitude absolute value is more than 20mg.
According to the speed of service and acceleration characteristic of elevator, the acceleration threshold of elevator up-down is determined as 30mg, i.e.,
As an effective sampling points when amplitude absolute value of sampled point is more than 30mg.Design can be compatible with elevator at a slow speed in this way
With the moving law of express lift.
It is suitable in view of the gate kinetic characteristic and elevator speed of each different brands different model elevator are all different
Such situation is answered, to data using window function statistics and the processing mode of median filtering when program is realized.It is tested according to a large amount of,
When sampling number is at 15 points, and effective sampling points are, demand can satisfy at 10.
After the switch gate information and upper and lower row information for obtaining elevator operation, so that it may count elevator in a period of time
The information such as interior switch gate number, number of run, and these information are stored in FLASH chip according to certain format.
The data sample of 3-axis acceleration sensor is as shown in Figures 2 to 5.
2, the realization of gas pressure sensor module
Air pressure sensor chip in the present invention uses the MS5611 air pressure sensor chip of MEAS company, and resolution ratio is
12ubar, measurement accuracy is up to 10cm.The variation of elevator height is calculated in the present invention using the difference that atmospheric pressure changes,
Formula are as follows: Δ H=Z2-Z1=18400* (1+aT) * lgP1/P2, in formula, P1 is the air pressure in Z1 height, and P2 is in Z2 height
Air pressure, the air column mean temperature of a=1/273, t between Z1 to Z2.
Since the air-flow variation in running process of elevator has an impact to the measurement error of baroceptor, so in the present invention
The mode for calculating elevator height variation is to acquire lift car to run first 3 seconds to 3 seconds after stopping atmospheric pressure values to calculate elevator position
It moves, the running mark of elevator is provided by acceleration sensor module.
Before distance and current floor in order to calculate elevator operation, need to do initial alignment to elevator floor；First
Manual control elevator one floor run, and according to the acquisition of an acceleration module initial data of every 5ms completion, and to 5 point datas
After carrying out sum-average arithmetic, as a sampled point, the sample rate of signal is the layer height that 25ms/point obtains every floor, and then
It is high to total building, and will be saved in number of floor levels, floor height, total building height write-in FLASH chip as elevator running parameter；Then it counts respectively
Calculate uplink displacement and the descending displacement of lift car, uplink displacement and descending displacement be the displacement that is run by elevator single it is cumulative and
Come, when elevator is run up add up uplink be displaced simultaneously descending displacement is reset, when elevator is run down add up descending displacement and will
Uplink displacement is reset；Finally, when elevator under uplink state uplink displacement reach configuration total building it is high when, then by current floor mark
Be set to uppermost storey, similarly, when elevator under downstream state descending displacement reach configuration total building it is high when, then by current floor mark
It is set to lowest floor；Complete floor calibration after, after elevator each run according to this row ladder distance and configuration it is every
The layer height of floor calculates floor locating for elevator.
After the layer of the floor and every floor that obtain elevator operation is high, so that it may which the operation for counting elevator in a period of time is total
Displacement, and elevator total displacement is stored in FLASH chip according to certain format.
The data sample of baroceptor is as shown in Figure 6.
3, other function module
Other function includes FLASH store function, WIFI communication data transfer function etc..
M25P64 chip of the FLASH storage chip using ST company in the present invention, capacity 64Mbit, with
The communication mode of MCU is SPI Bus, repeats erasable number up to 100,000 times.Information of the FLASH chip for storage is mainly wrapped
It includes: MCU program more new district, MCU program backup area, hardware parameter area (ID comprising hardware device, running parameter etc.), elevator ginseng
Number area (number of plies comprising elevator, floor height, normal speed etc.), statistical data area (switch gate number, uplink and downlink comprising elevator time
Number, range ability etc.).
Using the ESP12F mould group of Ai-Thinker company, core chips is for WIFI module in the present invention
ESP8266EX, wireless standard 802.11b/g/n.Data are transmitted using Transmission Control Protocol in the present invention.Maintenance staff or elevator make
The statistical data that TCP chain fetches acquisition elevator can be established by cell phone application or computer software and WIFI module with unit, these
Data have encryption and mechanism for correcting errors in application layer, it is ensured that the safety and stability of transmission.
For MCU in the present invention using the STM32F107 chip of ST company, kernel is ARM CortexTM- M3, it is main
Frequency is 80MHz, can be competent at demand of the present invention to data processing and algorithm.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: its is right
Technical solution documented by foregoing embodiments is modified, or is equally replaced to some or all of the technical features
It changes, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (9)
1. a kind of system for acquiring elevator cab movement information, which is characterized in that the acquisition elevator cab movement information is
System includes:
Acceleration module is completed with single-chip microprocessor MCU data connection for acquiring the acceleration information of carriage within a certain period of time
The acquisition of initial data, and sum-average arithmetic is carried out to the data of regulation points, as a sampled point；
Flash chip, and single-chip microprocessor MCU data connection, for storing the statistical data of elevator；
Real time clock management unit, and single-chip microprocessor MCU data connection, for providing clock interface for system；
Single-chip microprocessor MCU, for analyzing the motion information of lift car according to acceleration information, comprising:
Uplink: when the negative sense range value of sampled point is more than uplink thresholding, it is cumulative to be demarcated as negativeacceleration, and elevator is being at this time
Uplink accelerates；Whether the positive range value for then judging sampled point is more than uplink thresholding, if so, being demarcated as positive acceleration gradually
Increase, elevator just slows down in uplink at this time；Finally judge whether elevator meets and stop terraced condition, if so, a uplink process terminates；
Downlink: when the positive range value of sampled point is more than downlink thresholding, it is cumulative to be demarcated as positive acceleration, and elevator is being at this time
Downlink accelerates；Whether the negative sense range value for then judging sampled point is more than downlink thresholding, if so, being demarcated as negativeacceleration gradually
Increase, elevator just slows down in downlink at this time；Finally judge whether elevator meets and stop terraced condition, if so, a downlink process terminates.
2. a kind of system for acquiring elevator cab movement information according to claim 1, which is characterized in that the acceleration
The every 5ms of module completes the acquisition of an initial data, and after carrying out sum-average arithmetic to 5 point datas, as a sampled point, signal
Sample rate be 25ms/point.
3. it is according to claim 1 it is a kind of acquire elevator cab movement information system, which is characterized in that uplink thresholding and
Downlink thresholding is 30mg, i.e., as an effective sampling points when amplitude absolute value of sampled point is more than 30mg.
4. a kind of system for acquiring elevator cab movement information according to claim 1, which is characterized in that judging uplink
Or during downlink, sampling number is 15 points, when effective sampling points are, counts upstream or downstream at 10.
5. a kind of system for acquiring elevator cab movement information according to any one of claims 1 to 4, which is characterized in that
Further comprise the process for judging elevator cage door switch:
Open the door: when the negative sense range value of sampled point is more than enabling thresholding, it is cumulative to be demarcated as negativeacceleration, then judgement sampling
Whether the positive range value of point is more than enabling thresholding, if so, being judged as just in door opening state；
Close the door: when the positive range value of sampled point is more than to close the door to prescribe a time limit, it is cumulative to be demarcated as positive acceleration, then judges sampled point
Negative sense range value whether be more than shutdown thresholding, if so, being judged as the state of shutdown；
Enabling thresholding and shutdown thresholding are 20mg.
6. a kind of system for acquiring elevator cab movement information according to any one of claims 1 to 4, which is characterized in that
Further comprise: air pressure module, and single-chip microprocessor MCU data connection, for acquiring the change information of atmospheric pressure in carriage；
Single-chip microprocessor MCU calculates the variation of elevator height, formula are as follows: Δ H=according to the difference that atmospheric pressure in compartment changes
Z2-Z1=18400* (1+aT) * lgP1/P2, in formula, P1 is the air pressure in Z1 height, and P2 is the air pressure in Z2 height, a=1/
273, the T air column mean temperature between Z1 to Z2；Air pressure module acquires the gas that lift car runs first 3 seconds to 3 seconds after stopping
Pressure value, respectively as in formula: P1, P2 of Δ H=Z2-Z1=18400* (1+aT) * lgP1/P2, built in air pressure module
Temperature sensor provides air column mean temperature T, is then calculated from the formula elevator height variation.
7. a kind of system for acquiring elevator cab movement information according to claim 6, which is characterized in that single-chip microprocessor MCU,
Before the distance and the current floor that calculate elevator operation, need to do initial alignment to elevator floor；Manual control elevator first
One floor run, and according to the acquisition of an acceleration module initial data of every 5ms completion, and sum-average arithmetic is carried out to 5 point datas
Afterwards, as a sampled point, the sample rate of signal is the layer height that 25ms/point obtains every floor, and then obtains total building height, and
It will be saved in number of floor levels, floor height, total building height write-in FLASH chip as elevator running parameter；Then lift car is calculated separately
Uplink displacement and descending displacement, uplink displacement and descending displacement be by displacement that elevator single is run it is cumulative from, elevator to
The uplink that adds up when upper operation, which is displaced, simultaneously resets descending displacement, and adding up when elevator is run down descending displacement and is displaced uplink clear
Zero；Finally, when elevator under uplink state uplink displacement reach configuration total building it is high when, then current floor is demarcated as The Highest Tower
Layer, similarly, when elevator under downstream state descending displacement reach configuration total building it is high when, then current floor is demarcated as lowest floor
Layer；After completing floor calibration, the layer after elevator each run according to this row ladder distance and every floor of configuration is high
Calculate floor locating for elevator；After the layer of the floor and every floor that obtain elevator operation is high, elevator in a period of time is counted
Operation total displacement, and elevator total displacement is stored in FLASH chip according to certain format.
8. a kind of system for acquiring elevator cab movement information according to claim 6, which is characterized in that single-chip microprocessor MCU
The motion information for analyzing lift car further comprises:
Stop ladder: when the amplitude absolute value of sampled point is less than uplink thresholding or downlink thresholding, and the collected elevator speed of air pressure module
When degree is less than 30cm/s, it is judged as that elevator stops scalariform state.
9. a kind of system for acquiring elevator cab movement information according to any one of claims 1 to 4, which is characterized in that
Further comprise: WIFI module, with single-chip microprocessor MCU data connection, the statistical data for transmitting elevator by WIFI agreement is arrived
Maintenance staff or elevator use mobile phone, the pcs terminal equipment of unit personnel.
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| JP6628004B1 (en) * | 2018-10-09 | 2020-01-08 | 三菱電機ビルテクノサービス株式会社 | Elevator activation frequency measuring device, elevator activation frequency measuring system, and elevator activation frequency measuring method |
| CN109264526A (en) * | 2018-11-15 | 2019-01-25 | 上海麦信数据科技有限公司 | A kind of combined type level transducer applied to elevator |
| US11542124B2 (en) * | 2019-05-13 | 2023-01-03 | Otis Elevator Company | Sensor fusion door status detection |
| CN110540118B (en) * | 2019-06-21 | 2021-04-09 | 浙江大学 | Intelligent detection device for detecting motion state of car |
| CN110779525B (en) * | 2019-09-29 | 2023-03-24 | 广东小天才科技有限公司 | Indoor track analysis method, device, equipment and storage medium |
| CN111717744B (en) * | 2020-06-16 | 2023-01-31 | 北京云迹科技股份有限公司 | Method and device for detecting elevator floor |
| CN111891868A (en) * | 2020-08-11 | 2020-11-06 | 上海繁易信息科技股份有限公司 | Elevator monitoring system and method based on Internet of things |
| CN116654735A (en) * | 2020-09-04 | 2023-08-29 | 上海三菱电梯有限公司 | Method and system for monitoring elevator running state and elevator part state |
| CN113307121A (en) * | 2021-03-22 | 2021-08-27 | 中化金茂物业管理(北京)有限公司 | Modeling method for up-down running track of elevator |
| CN112938684B (en) * | 2021-03-22 | 2022-05-17 | 大连奥远电子股份有限公司 | Elevator operation track analysis system |
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| JP2012224435A (en) * | 2011-04-19 | 2012-11-15 | Hitachi Building Systems Co Ltd | Device for detecting abnormality of elevator door |
| CN202848789U (en) * | 2012-10-17 | 2013-04-03 | 林创鲁 | Elevator operating state monitoring and warning device |
| CN104649087B (en) * | 2013-11-20 | 2016-06-15 | 上海三菱电梯有限公司 | Elevator controlling device |
| CN104944245A (en) * | 2015-06-29 | 2015-09-30 | 周志鸿 | Elevator state information collecting device |
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