CN115231403A - Elevator safety monitoring management system based on big data analysis - Google Patents
Elevator safety monitoring management system based on big data analysis Download PDFInfo
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- CN115231403A CN115231403A CN202210634625.8A CN202210634625A CN115231403A CN 115231403 A CN115231403 A CN 115231403A CN 202210634625 A CN202210634625 A CN 202210634625A CN 115231403 A CN115231403 A CN 115231403A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
-
- 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
- B66B5/0012—Devices monitoring the users of the elevator system
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/14—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads
- B66B5/145—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of excessive loads electrical
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a lift safety monitoring management system based on big data analysis, belonging to the technical field of construction safety monitoring, comprising a remote data management platform and a safety monitoring unit for detecting a lift, wherein the safety monitoring unit comprises: the system comprises a control box, a human-computer interface, a floor calling module, a weight sensor, an internet data transmission module and a height sensor; the control box comprises a control module and an alarm module electrically connected with the control module, and the human-computer interface, the weight sensor and the height sensor are electrically connected with the control module through the control box; the invention can monitor the running state of the elevator in real time and can help the operator of the elevator to avoid serious and even fatal accidents caused by some misoperation. The working efficiency of the building operation can be improved, a safer working environment is provided, and the running data of the elevator can be uploaded in real time for a user of the elevator, a leasing unit or a safety supervision department to carry out remote monitoring and management.
Description
Technical Field
The invention relates to the technical field of construction safety monitoring, in particular to a safety monitoring and management system for an elevator based on big data analysis.
Background
With the continuous development of national economy of China, high-rise buildings are gradually increased, and the number of elevators for building the high-rise buildings is increased rapidly. The elevator is a manned cargo-carrying construction machine frequently used in buildings, is mainly used for the interior and exterior decoration of high-rise buildings and the construction of buildings such as bridges and chimneys, and is comfortable and safe for constructors to ride due to the unique box body structure. For large projects, the use of the elevator can greatly improve the production efficiency and save labor. However, in recent years, the safety hazard problem of the elevator is prominent day by day, the frequent occurrence of elevator accidents at the construction site causes huge economic and social burdens, and the safe and reliable operation of the elevator becomes a close concern for elevator producers and owners and also becomes an important issue related to the safety of modern construction.
Currently, the operation of elevators is performed by persons having an elevator operation certificate, and any person who does not have the elevator operation certificate is not allowed to operate the elevator. In order to limit the manned number of the elevator, avoid the occurrence of a rated personnel carrying phenomenon and improve the working efficiency of construction operation, the invention provides a safety monitoring and management system of the elevator based on big data analysis.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a safety monitoring and management system of an elevator based on big data analysis.
The technical purpose of the invention is realized by the following technical scheme: an elevator safety monitoring management system based on big data analysis, includes remote data management platform and is used for detecting the safety monitoring unit of elevator, the safety monitoring unit includes: the system comprises a control box, a human-computer interface, a floor calling module, a weight sensor, an internet data transmission module and a height sensor;
the control box is internally provided with a control module and an alarm module electrically connected with the control module, and the human-computer interface, the floor calling module, the weight sensor, the internet data transmission module and the height sensor are electrically connected with the control module through the control box;
the human-computer interface prompts the weight, the height and the current floor information of the current elevator by the received signals in a digital and icon mode;
the floor calling module comprises a floor calling host and a floor calling extension, the floor calling extension is used for sending floor signals to the floor calling host, and the floor calling host is used for receiving and feeding back floor signals input by the floor calling extension to a worker to control the elevator to run to a specified floor;
the height sensor is used for detecting the height change of the elevator in the vertical direction and feeding a height signal back to the control box, and the control box transmits the detected height signal to the human-computer interface to display the running height of the elevator;
the weight detection module is used for detecting the weight of the bearing object in the lifter and feeding a weight signal back to the control box, and the control box transmits the detected weight signal to display the weight of the bearing object of the lifter;
the internet data transmission module is used for uploading the signals received by the control box and the running data of the lifter to the remote data management platform in real time for the remote data management platform of the construction to carry out remote monitoring management;
the alarm module is used for alarming, and when the detection values of the height sensor and the weight detection module exceed the set peak value of the control box, the alarm module is automatically triggered.
As a further improvement of the invention: still be equipped with weight restriction module in the control box, just control module is connected with the alarm module electricity through weight restriction module, weight detection module is including two at least round pin axle sensors, makes round pin axle sensor produce weak deformation through cage weight and measures weight to pass to the control box with weight signal after the conversion, human-computer interface accessible weight restriction module sets up the detection peak value of weight detection module.
As a further improvement of the invention: the safety monitoring unit can also comprise a wind speed sensor, the wind speed sensor is used for detecting the wind speed of the external environment of the lifter and feeding a wind speed signal back to the control box, and the control box transmits the detected wind speed signal to display the wind speed of the external environment.
As a further improvement of the invention: the height sensor is also provided with an inclination angle sensor, the inclination angle sensor is tightly attached to the body of the elevator, the error is not more than 0.10 by using a level gauge for calibration, the inclination angle sensor feeds back the inclination angle variation relative to the horizontal plane of the elevator to the control box, and the control box transmits a detected inclination angle variation signal to the human-computer interface to display the horizontal variation of the elevator.
As a further improvement of the invention: the safety monitoring unit further comprises a GPS (global positioning system) positioner, the GPS positioner is electrically connected with the human-computer interface, and the GPS positioner is used for transmitting a self position signal to the remote data management platform.
As a further improvement of the invention: still be equipped with the remote switch module in the control box, the remote data management platform passes through internet data transmission module and is connected with the remote switch module electricity.
As a further improvement of the invention: the internet data transmission module is a GPRS data transmission module.
As a further improvement of the invention: and an emergency stop module is also arranged in the control box and used for stopping all functions of the current elevator.
As a further improvement of the invention: the safety monitoring unit further comprises a face recognition module, the face recognition module is used for detecting personnel information in the current elevator and feeding the detected personnel information back to the control box, the control box checks the information through the database, and the successfully checked personnel information can be displayed through a human-computer interface.
As a further improvement of the invention: the control box is also internally provided with a height limiting module, and the control module is electrically connected with the alarm module through the height limiting module.
In conclusion, the elevator safety monitoring and management system based on big data analysis provided by the invention can monitor the running state of the elevator in real time, perform various sound and light alarms and protective measures, and help the elevator operator to avoid serious and even fatal accidents caused by some misoperation. Therefore, the effective auxiliary device can improve the working efficiency of building operation and provide safer working environment, and the safety monitoring system has the function of a black box and can upload the running data of the elevator in real time through GPRS (general packet radio service) so as to be used by elevator use units, leasing units or safety supervision departments for remote monitoring and management.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a circuit diagram of the system of the present invention;
fig. 3 is a circuit connection diagram of the control box of the present invention.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an elevator safety monitoring and management system based on big data analysis includes a remote data management platform and a safety monitoring unit for detecting an elevator, where the safety monitoring unit includes: a control box, a human-computer interface, a floor calling module, a weight sensor, an internet data transmission module and a height sensor, the control box comprises a control module and an alarm module electrically connected with the control module, the human-computer interface, the floor calling module, the weight sensor, the internet data transmission module and the height sensor are all electrically connected with the control module through the control box, the human-computer interface prompts the weight, the height and the current floor information of the current elevator by the received signals in a digital and icon mode, the human-computer interface is used for system data input and the real-time running state calculation and display of the elevator, the control box is used for inputting the system sensor signal and controlling the output of the signal through the relay, and the whole system supplies power, the system has 6 normally closed contact outputs of the relays which correspond to an 8-core aviation plug, the man-machine interface has the sound function, the alarm volume of the man-machine interface is 60dB, the alarm module can indicate the alarm state of the abnormal part of the current system through the man-machine interface and prompt the staff by sounding, meanwhile, in order to avoid idle personnel from changing the parameters of the controller, the invention locks the change instruction of the human-computer interface in the form of the password by arranging the password protection function module, effectively avoids irrelevant personnel from changing the parameters, thus, the system abnormality is caused, and in order to avoid rain erosion and sunshine exposure, the man-machine interface can be installed indoors without influencing the sight line and operation of operators, and attention is required, in the embodiment, the human-computer interface is a seven-inch display, and a power supply of the human-computer interface is 220V alternating current which is led in from the upper end of a main power supply of a cab, so that grounding treatment is well performed. In order to ensure the wiring safety of personnel, the general power supply under the elevator is required to be cut off during the installation, when the elevator is installed indoors, if the GPRS has communication shielding, the antenna can be led outdoors, and the system has 7 limit switch value input detections in total and corresponds to a 9-core aviation plug;
the floor calling module comprises a floor calling host and a floor calling extension, the floor calling extension is used for sending floor signals to the floor calling host, the floor calling host is used for receiving the floor signals input by the calling fan and feeding the floor signals back to workers to control the elevator to run to a specified floor, and the human-computer interface also has the effect of floor calling real-person voice prompt;
in order to ensure that the height sensor is firmly installed and ensure that the elevator is positioned at the lowest position when the height sensor is installed, the height sensor is used for detecting the height change of the elevator in the vertical direction and feeding back a height signal to the control box, and the control box transmits the detected height signal to the human-computer interface to display the running height of the elevator;
the weight detection module is used for detecting the weight of the bearing object in the lifter and feeding a weight signal back to the control box, and the control box transmits the detected weight signal to display the weight of the bearing object of the lifter;
the internet data transmission module is used for uploading the signals received by the control box and the running data of the elevator to the remote data management platform in real time, and the remote data management platform for construction carries out remote monitoring management.
The weight limiting module is arranged in the control box, the control module is electrically connected with the alarm module through the weight limiting module, the weight detection module comprises at least two pin shaft sensors, the pin shaft sensors are weakly deformed to measure the weight through the weight of the suspension cage, weight signals are transmitted to the weight limiter after being converted, the weight limiting module can be used for setting the detection peak value of the weight detection module, and when the weight on the elevator exceeds the peak value set by the weight limiting module, the alarm module is triggered to give an alarm to workers.
The safety monitoring unit can also comprise a wind speed sensor, the wind speed sensor is used for detecting the wind speed of the external environment of the lifter and feeding a wind speed signal back to the control box, and the control box transmits the detected wind speed signal to display the wind speed of the external environment.
The height sensor is also provided with an inclination angle sensor, the inclination angle sensor is tightly attached to the body of the elevator and is calibrated by using a level meter, the error is not more than 0.10, the inclination angle sensor feeds back the inclination angle variation relative to the horizontal plane of the elevator to the control box, and the control box transmits a detected inclination angle variation signal to a human-computer interface to display the horizontal variation of the elevator.
The safety monitoring unit further comprises a GPS positioner, the GPS positioner is electrically connected with the human-computer interface, and the GPS positioner is used for transmitting the position signal of the GPS positioner to the remote data management platform.
The safety monitoring unit further comprises a remote switch module, and the remote switch module is connected with the remote data management platform through an internet data transmission module.
The internet data transmission module is a GPRS data transmission module, and uploads the running data of the elevator in real time through GPRS, so that the elevator can be remotely monitored and managed by an elevator use unit, a leasing unit or a safety supervision department.
And an emergency stop module is also arranged in the control box and used for stopping all functions of the current elevator, and the emergency stop module is electrically connected with the human-computer interface through the control box.
The safety monitoring unit further comprises a face recognition module, the face recognition module is used for detecting personnel information in the current elevator and feeding the detected personnel information back to the control box, the control box checks the information through the database, and the successfully checked personnel information can be displayed through a human-computer interface.
And a height limiting module is further arranged in the control box, and the control module is electrically connected with the alarm module through the height limiting module.
The elevator safety monitoring and management system based on big data analysis can monitor the running state of the elevator in real time, perform various sound and light alarms and protective measures, and help an elevator operator to avoid serious and even fatal accidents caused by some misoperation. Therefore, the effective auxiliary device can improve the working efficiency of building operation and provide a safer working environment, and the safety monitoring system has the function of a black box and can upload the running data of the elevator in real time through GPRS (general packet radio service), so that the elevator use unit, the leasing unit or a safety supervision department can carry out remote monitoring and management.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides an elevator safety monitoring management system based on big data analysis, includes remote data management platform and is used for detecting the safety monitoring unit of elevator, its characterized in that: the security monitoring unit includes: the system comprises a control box, a human-computer interface, a floor calling module, a weight sensor, an internet data transmission module and a height sensor;
the control box comprises a control module and an alarm module electrically connected with the control module, and the human-computer interface, the weight sensor and the height sensor are electrically connected with the control module through the control box;
the floor calling module and the internet data transmission module are electrically connected with the human-computer interface;
the human-computer interface prompts the weight, the height and the current floor information of the current elevator by the received signals in a digital and icon mode;
the floor calling module comprises a floor calling host and a floor calling extension, the floor calling extension is used for sending floor signals to the floor calling host, and the floor calling host is used for receiving and feeding back floor signals input by the floor calling extension to a worker to control the elevator to run to a specified floor;
the height sensor is used for detecting the height change of the elevator in the vertical direction and feeding a height signal back to the control box, and the control box transmits the detected height signal to the human-computer interface to display the running height of the elevator;
the weight detection module is used for detecting the weight of the bearing object in the lifter and feeding a weight signal back to the control box, and the control box transmits the detected weight signal to display the weight of the bearing object of the lifter;
the internet data transmission module is used for uploading the signals received by the control box and the running data of the lifter to the remote data management platform in real time for the remote data management platform of the construction to carry out remote monitoring management;
the alarm module is used for alarming, and when the detection values of the height sensor and the weight detection module exceed the set peak value of the control box, the alarm module is automatically triggered.
2. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: still be equipped with weight restriction module in the control box, just control module is connected with the alarm module electricity through weight restriction module, weight detection module is including two at least round pin axle sensors, makes round pin axle sensor produce weak deformation through cage weight and measures weight to pass to the control box with weight signal after the conversion, human-computer interface accessible weight restriction module sets up the detection peak value of weight detection module.
3. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: the safety monitoring unit can further comprise a wind speed sensor, the wind speed sensor is used for detecting the wind speed of the external environment of the elevator and feeding a wind speed signal back to the control box, and the control box transmits the detected wind speed signal to display the wind speed of the external environment.
4. The elevator safety monitoring and management system based on big data analysis according to claim 3, characterized in that: the height sensor is also provided with an inclination angle sensor, the inclination angle sensor is tightly attached to the body of the elevator, the error is not more than 0.10 by using a level gauge for calibration, the inclination angle sensor feeds back the inclination angle variation relative to the horizontal plane of the elevator to the control box, and the control box transmits a detected inclination angle variation signal to the human-computer interface to display the horizontal variation of the elevator.
5. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: the safety monitoring unit further comprises a GPS (global positioning system) positioner, the GPS positioner is electrically connected with the human-computer interface, and the GPS positioner is used for transmitting a self position signal to the remote data management platform.
6. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: the remote data management platform is electrically connected with the remote switch module through an internet data transmission module.
7. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: the internet data transmission module is a GPRS data transmission module.
8. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: and an emergency stop module is also arranged in the control box and used for stopping all functions of the current elevator.
9. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: the safety monitoring unit further comprises a face recognition module, the face recognition module is used for detecting personnel information in the current elevator and feeding the detected personnel information back to the control box, the control box checks the information through the database, and the successfully checked personnel information can be displayed through a human-computer interface.
10. The elevator safety monitoring and management system based on big data analysis according to claim 1, characterized in that: the control box is also internally provided with a height limiting module, and the control module is electrically connected with the alarm module through a weight limiting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634625.8A CN115231403A (en) | 2022-06-07 | 2022-06-07 | Elevator safety monitoring management system based on big data analysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634625.8A CN115231403A (en) | 2022-06-07 | 2022-06-07 | Elevator safety monitoring management system based on big data analysis |
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| CN115231403A true CN115231403A (en) | 2022-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210634625.8A Pending CN115231403A (en) | 2022-06-07 | 2022-06-07 | Elevator safety monitoring management system based on big data analysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115576263A (en) * | 2022-11-10 | 2023-01-06 | 中建三局科创产业发展有限公司 | Electrical control system and method for guide frame climbing platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381605A (en) * | 2011-09-14 | 2012-03-21 | 西安国邦实业有限公司 | Intelligent monitoring system for constructional lifter |
| CN106744116A (en) * | 2016-12-29 | 2017-05-31 | 南宁市思索科贸有限公司 | A kind of building hoist security monitoring management system |
| CN109205429A (en) * | 2017-06-29 | 2019-01-15 | 中际联合（天津）科技有限公司 | A kind of identification and remote monitoring system of lifter apparatus |
| US20200002125A1 (en) * | 2018-06-29 | 2020-01-02 | Otis Elevator Company | Maintenance scheduling based on remote monitoring data and service data analytics |
| CN215207906U (en) * | 2021-04-23 | 2021-12-17 | 合肥嘉联智能科技有限公司 | Operation monitoring system of construction elevator |
-
2022
- 2022-06-07 CN CN202210634625.8A patent/CN115231403A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381605A (en) * | 2011-09-14 | 2012-03-21 | 西安国邦实业有限公司 | Intelligent monitoring system for constructional lifter |
| CN106744116A (en) * | 2016-12-29 | 2017-05-31 | 南宁市思索科贸有限公司 | A kind of building hoist security monitoring management system |
| CN109205429A (en) * | 2017-06-29 | 2019-01-15 | 中际联合（天津）科技有限公司 | A kind of identification and remote monitoring system of lifter apparatus |
| US20200002125A1 (en) * | 2018-06-29 | 2020-01-02 | Otis Elevator Company | Maintenance scheduling based on remote monitoring data and service data analytics |
| CN215207906U (en) * | 2021-04-23 | 2021-12-17 | 合肥嘉联智能科技有限公司 | Operation monitoring system of construction elevator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115576263A (en) * | 2022-11-10 | 2023-01-06 | 中建三局科创产业发展有限公司 | Electrical control system and method for guide frame climbing platform |
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