CN113428754A - Elevator car operation data online acquisition system - Google Patents
Elevator car operation data online acquisition system Download PDFInfo
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- CN113428754A CN113428754A CN202110667182.8A CN202110667182A CN113428754A CN 113428754 A CN113428754 A CN 113428754A CN 202110667182 A CN202110667182 A CN 202110667182A CN 113428754 A CN113428754 A CN 113428754A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0025—Devices monitoring the operating condition of the elevator system for maintenance or repair
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses an on-line collecting system for elevator car running data, which comprises front-end collecting equipment, a data collecting module and a main control device, wherein the front-end collecting equipment is used for collecting running signals of corresponding parts, the data module is used for converting and collecting analog quantity signals, and the main control module is used for storing, processing and analyzing data. The acquisition system can effectively monitor the running performance of the key components of the elevator, further analyze the working state of the elevator components, and lay a foundation for the evaluation of the running performance of the elevator and the prediction of the elevator fault based on the state signals.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to an online acquisition system for elevator car operation data.
Background
Nowadays, elevators gradually become main vertical transportation tools, are widely used in places such as markets, high-rise residences and the like, and bring great convenience to the lives of people. However, as elevator usage times increase, vibrations in the elevator car become more severe and the operating sound becomes increasingly noisy, which can greatly reduce the safety and comfort of elevator passengers. Meanwhile, the running performance of the subsystem and the components in the elevator can be gradually degraded, so that potential safety hazards are brought to the use of the elevator. It is therefore necessary to collect a targeted signal for monitoring the operating state of the elevator. In addition, the collected signals are processed and analyzed, so that the characteristic quantity can be extracted, the current running performance of the elevator is effectively reflected, and a good foundation is laid for predicting elevator faults in the later period, preventing elevator accidents and ensuring the safe running of the elevator.
Disclosure of Invention
In order to meet the requirements of data acquisition and analysis, the invention provides an online acquisition system for elevator car operation data, which is characterized in that sensors are added at each part of an elevator car for acquiring front-end data, a data acquisition module is used for data acquisition, and finally a main control module is used for completing data storage, processing, analysis, data transmission synchronization and fault alarm.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an elevator car operation data online acquisition system comprises:
the front-end acquisition equipment comprises an encoder, a current probe, an acceleration sensor and a sound sensor and is used for acquiring the rotating speed, current, vibration and sound information of each component of the elevator car;
the data acquisition module is coupled with the front-end acquisition equipment and used for processing and converting the data acquired by the front-end acquisition equipment and outputting the data to the main control device;
the 485 serial port communication interface is used for receiving the data output by the controller and outputting the data to the main control device;
the camera is used for acquiring image information in the elevator car and outputting the image information to the main control device;
and the master control device is provided with a data processing module, a remote communication module and a human-computer interaction module, is used for processing/storing the data acquired by the data acquisition module, the 485 serial port communication interface and the camera, and performs data interaction with an operator or external equipment based on the human-computer interaction module or the remote communication module.
Further, the encoder is including the first encoder that is used for gathering the wire rope speed, the second encoder that is used for gathering the host computer rotational speed of towing to and be used for gathering the third encoder of motor rotational speed, first encoder, second encoder and third encoder couple through level conversion circuit the data acquisition module.
Furthermore, the front end of the first encoder is provided with a rubber wheel which is attached to a steel wire rope in a machine room to obtain the speed of the steel wire rope; the second encoder is coaxially installed with the traction main machine through a coupler so as to obtain the rotating speed of the traction main machine; and the third encoder is arranged in parallel with the output shaft of the motor and is driven by a gear pair to acquire the rotating speed of the motor.
Furthermore, the current probe comprises a current probe A for collecting three-phase current of the host and a current probe B for collecting three-phase current of the gantry crane.
Furthermore, the acceleration sensor comprises a capacitance type acceleration sensor and a piezoelectric type acceleration sensor which are fixed at the bottom of the elevator car, the capacitance type acceleration sensor is used for monitoring the overall up-down acceleration of the elevator car, and the piezoelectric type acceleration sensor is used for monitoring the vibration of the elevator car.
Furthermore, the sound sensor is arranged right above the elevator car and used for collecting abnormal sound signals generated by the operation of the elevator car and the opening and closing of the door.
Furthermore, the data acquisition module comprises a plurality of AD input units, an FPGA unit and an output unit; the AD input unit comprises a multiplexer, a programmable gain instrument amplifier and an analog-to-digital converter, wherein the multiplexer is used for switching a front-end input channel, and the programmable gain instrument amplifier is used for adapting to the sensitivity of various sensor interfaces and optimizing the signal-to-noise ratio of signals; the FPGA unit is used for controlling the function realization of each device of the AD input unit, and the output unit realizes the data transmission between the data acquisition module and the main control device based on the USB interface.
Further, the data processing module of the main control device is configured to process and compare the received data based on preset logic, output an alarm signal when the comparison result is abnormal, and switch the data storage mode from the interval storage to the continuous storage mode.
Furthermore, the remote communication module of the main control device comprises a 5G module and a Bluetooth module, the 5G module is used for carrying out remote data transmission with an external platform, and the Bluetooth module is used for uploading daily detection and periodic inspection data and carrying out data transmission of the wireless sensor by maintenance personnel and elevator industry practitioners.
Furthermore, the elevator car operation data online acquisition system further comprises a remote terminal and/or a cloud platform, the main control device transmits data to the remote terminal and/or the cloud platform through a 5G module or a Bluetooth module, and the remote terminal and/or the cloud platform are provided with a webpage end remote login interface for logging in related personnel and remotely monitoring the real-time operation condition of the elevator.
The invention has the beneficial effects that:
1) the elevator door opening and ladder walking based on the elevator is mainly characterized in that the elevator door opening and ladder walking, the flat floor is not in place, the landing door cannot be opened and the like, and the main reasons of the faults are obtained through analysis, for example, the main reason of the elevator door opening and ladder walking is that the brake braking force is insufficient, the main reason of the landing door cannot be opened is that the door motor power is insufficient, so that aiming at different fault reasons, targeted information acquisition can be carried out, and then characteristic quantity can be obtained through analysis, for example, a coder is installed, the characteristic quantity 'braking distance' can be extracted, the brake performance of the brake is monitored, and the door motor working reliability can be monitored through the door motor current, so that the acquired signals are more targeted, and the final evaluation result can better accord with the actual situation.
2) The system can monitor the running state of the elevator in real time, and carry out certain processing analysis on the acquired signals, so that related personnel can judge whether the performance of the elevator has defects in time, and send out an alarm when the performance of the elevator has defects to inform the related personnel to carry out maintenance, thereby improving the running safety of the elevator, preventing the occurrence of elevator accidents, and simultaneously reducing the maintenance cost after the elevator fails.
3) The system of the invention stores the running data of the elevator at intervals when in normal running, and stores the data in time when monitoring that some part has performance defects or the whole running condition of the elevator is not good, thereby ensuring the integrity of the data and being used for subsequent in-depth analysis. And the data is stored in a local mode and a cloud platform mode, so that the integrity of the data is ensured.
4) The collecting equipment provided by the system provided by the invention has complete functions, and can add or delete monitored items according to the requirements of different elevators in the follow-up process, and can set a collecting channel according to the requirements of users, thereby improving the monitoring selectivity and efficiency of the system.
5) The system can realize data communication between the main control device and maintenance personnel and mobile phone mobile terminals of practitioners in the elevator industry, the maintenance personnel can upload maintenance data to the cloud platform, basis is provided for subsequent maintenance, the efficiency of recording and synchronizing the maintenance data of the elevator is improved, different monitoring standards can be implemented on the cloud platform aiming at elevators of different types and models, and a certain foundation is provided for personalized safe customization of the elevator.
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Fig. 1 is a schematic diagram of module composition and connection relationship of an elevator operation data online acquisition and analysis system.
Detailed Description
For a further understanding of the invention, reference will now be made to the preferred embodiments of the invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the invention, and not to limit the scope of the claims.
The embodiment of the invention provides an on-line collecting system of elevator car running data, which comprises front-end collecting equipment, a front-end collecting device and a control device, wherein the front-end collecting equipment comprises an encoder, a current probe, an acceleration sensor and a sound sensor and is used for collecting rotating speed, current, vibration and sound information of each part of an elevator car; the data acquisition module is coupled with the front-end acquisition equipment and used for processing and converting the data acquired by the front-end acquisition equipment and outputting the data to the main control device; the 485 serial port communication interface is used for receiving the data output by the controller and outputting the data to the main control device; the camera is used for acquiring image information in the elevator car and outputting the image information to the main control device; and the master control device is provided with a data processing module, a remote communication module and a human-computer interaction module, is used for processing/storing the data acquired by the data acquisition module, the 485 serial port communication interface and the camera, and performs data interaction with an operator or external equipment based on the human-computer interaction module or the remote communication module.
Referring to fig. 1, in this embodiment, the front-end acquisition device includes an encoder 1, an encoder 2, an encoder 3, current probes a (3), current probes B (3), an acceleration sensor, and a sound sensor.
In an embodiment, the front end of the encoder 1 is provided with a rubber wheel which is attached to a steel wire rope in a machine room and used for acquiring the running speed of the steel wire rope; the encoder 2 is coaxially installed with the traction main machine through a coupler and is used for acquiring the rotating speed of the traction main machine; the encoder 3 is installed in parallel with the output shaft of the motor, and is driven by a gear pair to obtain the rotating speed of the motor.
In an illustrated embodiment, the current probe a is used to obtain the three-phase current of the main machine, and similarly, the current probe B is used to obtain the three-phase current of the elevator door motor.
In an illustrative embodiment, the acceleration sensor comprises a capacitive acceleration sensor and a piezoelectric acceleration sensor which are fixed at the bottom of the elevator car, wherein the capacitive acceleration sensor is used for monitoring the up-down acceleration of the whole elevator car according to the characteristics of the two sensors, and the piezoelectric acceleration sensor is used for monitoring the vibration of the elevator car.
In an embodiment, the sound sensor is arranged right above the car and used for collecting abnormal sounds generated by the operation of the car and the opening and closing of the door; the 485 serial port communication interface is used for reading data of the elevator controller.
In an illustrated embodiment, a camera is mounted in the upper right corner of the elevator for monitoring real time conditions within the car.
Referring to fig. 1, in this embodiment, the data acquisition module includes an AD input unit, an output unit, and an FPGA control unit.
The AD input unit comprises a Multiplexer (MUX), a Programmable Gain Instrument Amplifier (PGIA) and an analog-to-digital converter (ADC), and data collection can be achieved according to different signal sources (floating connection and grounding) and wiring modes (differential, reference ground single-ended and non-reference ground single-ended), wherein the MUX can achieve switching of input front-end input channels, and the PGIA can adapt to sensitivity of various sensor interfaces and optimize signal-to-noise ratio of signals.
The FPGA unit controls the function realization of each module; the output unit realizes data transmission between the data acquisition module and the main control module by using a USB interface.
Referring to fig. 1, in this embodiment, the main control device is configured with a 5G module, a bluetooth module, a data processing module (ARM and data processing software), and a human-computer interaction module. The 5G module is used for transmitting data to the cloud platform, the cloud platform can remotely log in at a webpage end, and therefore related personnel can remotely monitor the real-time running condition of the elevator. The Bluetooth module is used for the maintenance personnel and elevator industry practitioners to upload daily detection and regular inspection data and is also used for data transmission of the wireless sensor. The human-computer interaction module is used for operating by a user. The data processing module (ARM and data processing software) can realize the functions of data storage, analysis and processing based on preset logic, subsequent fault diagnosis, residual life prediction of parts and the like, and in addition, when performance degradation of a certain part of the elevator is found based on a comparison result, an alarm can be sent to inform related personnel.
The elevator car operation data online acquisition system further comprises a remote terminal (mobile phone) and a cloud platform, the main control device transmits data to the remote terminal (mobile phone) and the cloud platform through a 5G module or a Bluetooth module, and the remote terminal (mobile phone) and/or the cloud platform are/is provided with a webpage end remote login interface for logging in related personnel and remotely monitoring the real-time operation condition of the elevator.
The invention relates to an on-line collecting system of elevator car operation data, which has the following specific working modes:
before data acquisition begins, front end acquisition equipment is all installed to the assigned position as required, and wherein the signal that encoder 1, encoder 2, encoder 3, current probe A, current probe B, acceleration sensor and sound sensor gathered is the analog quantity, consequently needs acquisition equipment to link to each other with data acquisition module, accomplishes AD conversion, and through USB with digital signal transmission to host system again, controller data and camera then can directly link to each other with host system and realize data transmission.
After the front-end acquisition equipment is installed, relevant parameters such as sensor type, signal source type, sensor sensitivity and the like are set, and then the running state of the elevator starts to be monitored. For the acquired signals, the data acquisition module and the data processing module of the main control device can reduce noise of the signals and extract characteristic quantities in a targeted manner (for example, the characteristic quantities such as braking distance, braking time and the like can be extracted from the signals of the encoder, and the braking performance of the brake is monitored), so that the key components and the running performance of the elevator are evaluated. When the elevator is in a good running state and the collected signals are in accordance with expectations, the collected data can be stored at equal intervals (for example, complete running data is stored every hour), and the data is marked as 'normal running data'; when the situation that some part has performance defects or the whole operation condition of the elevator is poor is monitored, the data is stored in time and marked as 'suspected fault data'.
All collected data can be stored locally (local data is only reserved for 15 days), and simultaneously uploaded to a cloud platform (permanently stored), the cloud platform can realize remote login, and related personnel can log in to monitor the running state of the elevator at any time by using the authority. When the evaluation finds that the elevator has potential safety hazard or serious performance defect, an alarm is given out to inform related personnel to carry out maintenance or even repair.
In addition, after the elevator is maintained each time, maintenance personnel need to fill in a form at a mobile phone end, provide an evaluation result for each index required by national standards, and upload the evaluation result to a cloud platform to serve as a basis for subsequent maintenance, fault diagnosis and the like.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an elevator car operation data on-line collection system which characterized in that includes:
the front-end acquisition equipment comprises an encoder, a current probe, an acceleration sensor and a sound sensor and is used for acquiring the rotating speed, current, vibration and sound information of each component of the elevator car;
the data acquisition module is coupled with the front-end acquisition equipment and used for processing and converting the data acquired by the front-end acquisition equipment and outputting the data to the main control device;
the 485 serial port communication interface is used for receiving the data output by the controller and outputting the data to the main control device;
the camera is used for acquiring image information in the elevator car and outputting the image information to the main control device;
and the master control device is provided with a data processing module, a remote communication module and a human-computer interaction module, is used for processing/storing the data acquired by the data acquisition module, the 485 serial port communication interface and the camera, and performs data interaction with an operator or external equipment based on the human-computer interaction module or the remote communication module.
2. The system of claim 1, wherein the encoder comprises a first encoder for acquiring the speed of the wire rope, a second encoder for acquiring the rotating speed of the traction main machine, and a third encoder for acquiring the rotating speed of the motor, and the first encoder, the second encoder and the third encoder are coupled to the data acquisition module through a level conversion circuit.
3. The system for on-line collection of elevator car operating data according to claim 2, wherein the first encoder is provided with a rubber wheel at the front end, and the rubber wheel is attached to a steel wire rope in a machine room to obtain the speed of the steel wire rope; the second encoder is coaxially installed with the traction main machine through a coupler so as to obtain the rotating speed of the traction main machine; and the third encoder is arranged in parallel with the output shaft of the motor and is driven by a gear pair to acquire the rotating speed of the motor.
4. The system for on-line collection of elevator car operating data according to claim 1, wherein the current probe comprises a current probe a for collecting three-phase current of the main machine and a current probe B for collecting three-phase current of the door machine.
5. The system of claim 1, wherein the acceleration sensor comprises a capacitive acceleration sensor fixed to the bottom of the elevator car for monitoring the acceleration of the elevator car in the up and down direction and a piezoelectric acceleration sensor for monitoring the vibration of the elevator car.
6. The system for on-line collection of elevator car operation data according to claim 1, wherein the sound sensor is installed right above the elevator car for collecting abnormal sound signals generated by car operation and door opening and closing.
7. The on-line collecting system of elevator car operation data of any one of claims 1-6, characterized in that the data collecting module comprises a plurality of AD input units, and FPGA unit and output unit; the AD input unit comprises a multiplexer, a programmable gain instrument amplifier and an analog-to-digital converter, wherein the multiplexer is used for switching a front-end input channel, and the programmable gain instrument amplifier is used for adapting to the sensitivity of various sensor interfaces and optimizing the signal-to-noise ratio of signals; the FPGA unit is used for controlling the function realization of each device of the AD input unit, and the output unit realizes the data transmission between the data acquisition module and the main control device based on the USB interface.
8. The system of claim 7, wherein the data processing module of the master control device is configured to compare the received data based on a preset logic, output an alarm signal when the comparison result is abnormal, and switch the data storage mode from the interval storage to the continuous storage mode.
9. The system of claim 8, wherein the remote communication module of the master control device comprises a 5G module and a Bluetooth module, the 5G module is used for remote data transmission with an external platform, and the Bluetooth module is used for uploading daily detection and periodic inspection data for maintenance personnel and elevator industry practitioners and for data transmission of the wireless sensor.
10. The on-line elevator car operation data acquisition system according to claim 9, further comprising a remote terminal and/or a cloud platform, wherein the master control device transmits data to the remote terminal and/or the cloud platform through a 5G module or a bluetooth module, and the remote terminal and/or the cloud platform are provided with a webpage-side remote login interface for logging in of related personnel and remote monitoring of the real-time operation condition of the elevator.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117560699A (en) * | 2024-01-11 | 2024-02-13 | 艾特智能科技(台州)有限公司 | Special equipment operation control method and device and special equipment |
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| CN108792871A (en) * | 2018-07-09 | 2018-11-13 | 闽江学院 | A kind of intelligent elevator monitoring system based on Internet of Things big data |
| CN208378121U (en) * | 2018-07-09 | 2019-01-15 | 闽江学院 | The hardware configuration of intelligent elevator monitoring system based on Internet of Things big data cloud computing |
| CN112645171A (en) * | 2020-12-31 | 2021-04-13 | 北京航天特种设备检测研究发展有限公司 | Elevator state acquisition and diagnosis edge device and system |
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- 2021-06-16 CN CN202110667182.8A patent/CN113428754A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203229283U (en) * | 2013-03-27 | 2013-10-09 | 东华大学 | Elevator fault wireless pre-warning system |
| CN108792871A (en) * | 2018-07-09 | 2018-11-13 | 闽江学院 | A kind of intelligent elevator monitoring system based on Internet of Things big data |
| CN208378121U (en) * | 2018-07-09 | 2019-01-15 | 闽江学院 | The hardware configuration of intelligent elevator monitoring system based on Internet of Things big data cloud computing |
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Application publication date: 20210924 |