CN108529373B - Elevator safety device based on laser temperature measurement and temperature processing method - Google Patents
Elevator safety device based on laser temperature measurement and temperature processing method Download PDFInfo
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- CN108529373B CN108529373B CN201810285548.3A CN201810285548A CN108529373B CN 108529373 B CN108529373 B CN 108529373B CN 201810285548 A CN201810285548 A CN 201810285548A CN 108529373 B CN108529373 B CN 108529373B
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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
Abstract
The embodiment of the invention provides an elevator safety device based on laser temperature measurement and a temperature processing method, and belongs to the technical field of elevator equipment. This elevator safety device based on laser temperature measurement includes: the elevator monitoring system comprises a motor, a controller, an infrared thermometer, a mobile phone and a server, wherein the motor, the controller, the infrared thermometer, the mobile phone and the server are installed in an elevator, the infrared thermometer is installed on the motor and comprises a temperature detection module, a processor and a communication module, the communication module and the temperature detection module are both coupled with the processor, and the communication module is respectively in data communication with the mobile phone and the server; the controller is coupled to the motor and the processor, respectively. The collected temperature is processed in real time through the server, so that the problem accumulation can be effectively avoided, and the safe operation quality of the elevator is improved.
Description
Technical Field
The invention relates to the technical field of elevator equipment, in particular to an elevator safety device based on laser temperature measurement and a temperature processing method.
Background
In recent years, the number of elevators in China is increasing at a speed of over 40 ten thousand elevators per year, but as the number of elevators increases, elevator accidents are frequent increasingly. The work of elevator installation and maintenance is relatively bitter and tired, and income is not high, therefore personnel's loss is big, and 90% among all kinds of elevator accidents is because the maintenance is bad, the management is not in place and is caused. The main reason of the accidents of the elevator is that the motor of the elevator works at high temperature, and the current temperature of the motor is mainly measured by a mercury thermometer, but the measurement precision is very poor and the motor is easy to damage, or an EC650/EC750 hygrothermograph is used, but the measurement time is long. Therefore, how to solve the above problems is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The invention aims to provide an elevator safety device based on laser temperature measurement and a temperature processing method, which can improve the technical problem.
The embodiment of the invention is realized by the following steps:
a temperature processing method is applied to an elevator safety device based on laser temperature measurement, and the elevator safety device based on the laser temperature measurement comprises the following steps: the elevator monitoring system comprises a motor, a controller, an infrared thermometer, a mobile phone and a server, wherein the motor, the controller, the infrared thermometer, the mobile phone and the server are installed in an elevator, the infrared thermometer is installed on the motor and comprises a temperature detection module, a processor and a communication module, the communication module and the temperature detection module are both coupled with the processor, the communication module is in data communication with the mobile phone and the server respectively, and the controller is coupled with the motor and the processor respectively; the method comprises the following steps: the temperature detection module collects the temperature of the motor and sends the collected temperature to the processor, so that the processor sends the temperature to the communication module, and the communication module sends the temperature data sent by the processor to the mobile phone and the server; the server receives the temperature data and judges whether the temperature data is larger than the preset value or not; if so, the server sends a control instruction to the controller so that the controller controls the motor to reduce the running speed according to the control instruction; the server judges whether the temperature data is larger than the preset value under the preset condition or not; if so, the server sends prompt information to an elevator maintainer so that the elevator maintainer overhauls the motor.
Optionally, the determining, by the server, whether the temperature data is greater than the preset value when a preset condition is met includes: the server judges whether the temperature data is larger than the preset value within a preset continuous time period or not; and if the temperature data is larger than the preset value in the preset continuous time period, determining that the times meet a preset condition.
Optionally, the determining, by the server, whether the temperature data is greater than the preset value within a preset continuous time period includes: and the server judges whether the temperature data is larger than the preset value within three consecutive days.
Optionally, the sending, by the server, a control instruction to the controller so that the controller controls the motor to reduce the operation speed according to the control instruction includes: the server sends a control instruction to the communication module to enable the communication module to forward the control instruction to the processor, so that the processor forwards the control instruction to the controller, and the controller controls the motor to reduce the running speed according to the control instruction.
Optionally, the elevator safety device based on laser thermometry further includes a monitoring terminal, the monitoring terminal is coupled with the communication module, and the method further includes: and the monitoring terminal receives the temperature data sent by the processor and displays the temperature data in real time.
An elevator safety device based on laser temperature measurement comprises a motor, a controller, an infrared thermometer, a mobile phone and a server, wherein the motor, the controller, the infrared thermometer, the mobile phone and the server are installed in an elevator; the controller is coupled with the motor and the processor respectively; the controller is used for controlling the running speed of the motor; the temperature detection module is used for collecting the temperature of the motor and sending the collected temperature to the processor; the processor is used for processing the temperature and then sending the processed temperature to the communication module, so that the communication module sends the temperature data sent by the processor to the mobile phone and the server; the mobile phone is used for receiving the temperature data sent by the processor, so that a user can monitor the temperature change of the motor in real time based on the mobile phone; the server is used for receiving the temperature data and also used for judging whether the temperature data is larger than the preset value; if so, the server is further used for sending a control instruction to the controller so that the controller controls the motor to reduce the running speed according to the control instruction; the server is further used for judging whether the temperature data is larger than the preset value under the preset condition; if so, the server is also used for sending prompt information to an elevator maintainer so that the elevator maintainer overhauls the motor. .
Optionally, the communication module is any one of a GPRS communication module, a wifi communication module, a ZigBee chip, or a bluetooth module.
Optionally, the communication device further comprises a monitoring terminal, wherein the monitoring terminal is coupled with the communication module; the monitoring terminal is used for receiving the temperature data sent by the processor and displaying the temperature data in real time.
Optionally, the monitoring terminal further comprises an alarm module, and the alarm module is coupled with the monitoring terminal; and the alarm module is used for carrying out voice alarm according to the control instruction sent by the monitoring terminal.
Optionally, the temperature detection module is an infrared temperature sensor.
The embodiment of the invention has the beneficial effects that: the embodiment of the invention provides an elevator safety device based on laser temperature measurement and a temperature processing method, wherein infrared laser is emitted to a motor through a temperature detection module in an infrared thermometer, the temperature of the motor is collected through the infrared laser, the collected temperature is sent to a processor, and the processor sends the temperature to a mobile phone and a server through a communication module, so that a user can realize remote real-time detection of the temperature condition of the motor through the mobile phone, the monitoring efficiency of the motor is effectively improved, the collected temperature is processed in real time through the server, the problem accumulation can be effectively avoided, and the safe operation quality of an elevator is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an elevator safety device based on laser temperature measurement according to a first embodiment of the invention;
fig. 2 is a schematic flow chart of a temperature processing method according to a second embodiment of the present invention.
Icon: 100-elevator safety device based on laser temperature measurement; 110-a motor; 120-a controller; 130-infrared thermometer; 140-a mobile phone; 150-a server; 160-monitoring terminal; 170-alarm module; 131-a temperature detection module; 132-a processor; 133-communication module.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
Referring to fig. 1, the present embodiment provides an elevator safety device 100 based on laser temperature measurement, which includes a motor 110 installed in an elevator, a controller 120, an infrared thermometer 130, a mobile phone 140, a server 150, a monitoring terminal 160, and an alarm module 170.
In this embodiment, the motor 110 is installed in the elevator to provide kinetic energy to the elevator to operate the elevator.
The selection of the motor 110 may select motors of different models or different powers according to different application scenarios. Here, the number of the carbon atoms is not particularly limited.
In this embodiment, the installation manner of the motor 110 is the prior art in the field, and is not described herein again.
In this embodiment, the controller 120 is connected to the motor 110 to control whether the motor 110 operates, at what speed, or the like. Here, the number of the carbon atoms is not particularly limited.
In this embodiment, the controller 120 may be a general-purpose processor including a Central Processing Unit (CPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, and a discrete hardware component.
In this embodiment, the model of the controller 120 may be STM32F103C8T6, STM32F103VET6, or STM32F107cct 6. Here, the number of the carbon atoms is not particularly limited.
In this embodiment, the controller 120 is further electrically connected to the infrared thermometer 130, and is configured to collect monitoring data of the infrared thermometer 130.
In this embodiment, the infrared thermometer 130 is configured to detect a real-time temperature of the motor 110, so as to accurately and quickly obtain a temperature condition of the motor 110 during operation, thereby avoiding aging of the motor 110 due to an excessively high temperature, and further avoiding a failure of the elevator.
In this embodiment, the infrared thermometer 130 is an infrared laser thermometer, and by using the infrared laser thermometer, temperature data can be obtained in a very short time and fed back in real time, so that the temperature of the motor 110 is measured based on an optical non-contact manner, and external error interference is avoided.
In this embodiment, the infrared thermometer 130 is preferably installed around the motor 110, or is installed on the motor 110.
In this embodiment, the infrared thermometer 130 includes a temperature detection module 131, a processor 132, and a communication module 133.
In this embodiment, the temperature detecting module 131 is coupled to the processor 132, and is configured to emit infrared laser onto the motor 110, so as to obtain a current temperature of the motor 110 through a laser signal, and send the obtained temperature to the processor 132.
In this embodiment, preferably, the temperature detecting module 131 is an infrared temperature sensor. The model of the infrared temperature sensor can be SMTIR9901 or CS 171. Here, the number of the carbon atoms is not particularly limited.
In this embodiment, the processor 132 is coupled to the temperature detection module 131 and the communication module 133, and the processor 12 is configured to receive the real-time temperature collected by the temperature detection module 131 and perform processing, such as data packaging or data recognition, and is not limited in this respect. The processed temperature data is sent to the communication module 133, and then the communication module 133 forwards the data to other terminals, such as a mobile phone terminal, a cloud terminal, or a server, which is not limited in this respect.
In this embodiment, the processor 132 is further coupled to the controller 120.
The processor 132 may be a general-purpose processor, and includes a Central Processing Unit (CPU), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a ready-made programmable Gate Array (FPGA) or other programmable logic device, a discrete Gate or transistor logic device, and a discrete hardware component.
In this embodiment, the model of the processor 132 may be STM32F103C8T6, STM32F103VET6, or STM32F107cct 6. Here, the number of the carbon atoms is not particularly limited.
In this embodiment, the input end of the communication module 133 is coupled to the processor 132, and the output end of the communication module 133 is in data communication with the mobile phone 140, the server 150 and the monitoring terminal 160, respectively.
In this embodiment, preferably, the communication module 133 is any one of a GPRS communication module, a wifi communication module, a ZigBee chip, or a bluetooth module. Here, the number of the carbon atoms is not particularly limited.
In this embodiment, the mobile phone 140 is configured to receive the real-time temperature of the motor 110 sent by the communication module 133, so that the user can remotely monitor the real-time temperature based on the mobile phone 140, and can view the temperature image data based on a visualization device such as the mobile phone 140.
In this embodiment, the server 150 is configured to receive the temperature data sent by the processor 132 and further configured to determine whether the temperature data is greater than the preset value; when the temperature data is greater than the preset value, the server 150 is further configured to send a control instruction to the controller 120, so that the controller 120 controls the motor 110 to reduce the operation speed according to the control instruction. Specifically, the server 150 sends a control instruction to the communication module 133, the communication module 133 forwards the control instruction to the processor 132, the processor 132 forwards the control instruction to the controller 120, and finally the controller 120 executes the control instruction, where the control instruction may be an instruction for controlling the motor 110 to decrease the operation speed, or may be an instruction for controlling the motor 110 to stop operating, and this is not particularly limited.
In this embodiment, the server 150 is further configured to determine whether the temperature data is greater than the preset value when a preset condition is met; if yes, the server 150 is further configured to send prompt information to an elevator maintenance worker, so that the elevator maintenance worker overhauls the motor 110. For example, when the temperature data is greater than the preset value in three consecutive days, the server 150 sends a prompt message to an elevator service man, so that the elevator service man services the motor 110.
In this embodiment, the server 150 processes the temperature data in real time, so that the current problems or faults can be effectively solved, further the problem accumulation during artificial processing can not be caused, and further the occurrence of major elevator car accidents can be effectively avoided.
In this embodiment, preferably, the server 150 is a cloud server.
In this embodiment, the monitoring terminal 160 is configured to receive the temperature data sent by the processor 132, and display the temperature data in real time.
In this embodiment, the monitoring terminal 160 may be a computer, such as a notebook, a desktop computer with a host, or an all-in-one machine. Here, the number of the carbon atoms is not particularly limited. By transmitting the temperature data to the monitoring terminal 160, a monitoring person can be enabled to quickly obtain the temperature of the motor 110, thereby quickly obtaining or eliminating whether the elevator system is in failure due to the motor temperature. Thereby bringing great guarantee for the safety of the elevator.
In this embodiment, the alarm module 170 is coupled to the monitoring terminal 160 for data communication, and the alarm module 170 is configured to send alarm information to prompt a monitoring person or a maintenance person to immediately maintain a faulty elevator.
In this embodiment, the type of the alarm module 170 may be G150, or GST-LD-8300. Here, the number of the carbon atoms is not particularly limited.
The working principle of the elevator safety device 100 based on laser temperature measurement is as follows: the temperature detection module 131 in the infrared thermometer 130 emits infrared laser to the motor 110, so that the temperature of the motor 110 is collected through the infrared laser, the collected temperature is sent to the processor 132, the processor 132 sends the temperature to the mobile phone 140 and the server 150 through the communication module, so that a user can remotely detect the temperature of the motor 110 in real time through the mobile phone 140, the monitoring efficiency of the motor 110 is effectively improved, the collected temperature is processed in real time through the server 110, the problem accumulation can be effectively avoided, and the safe operation quality of the elevator is improved.
Second embodiment
Fig. 2 is a flowchart of a temperature processing method according to a second embodiment of the present invention. The temperature processing method is applied to the elevator safety device based on laser temperature measurement in the first embodiment, and the elevator safety device based on laser temperature measurement comprises the following steps: the elevator temperature monitoring system comprises a motor, a controller, an infrared thermometer, a mobile phone and a server, wherein the motor, the controller, the infrared thermometer, the mobile phone and the server are installed in an elevator, the infrared thermometer is installed on the motor and comprises a temperature detection module, a processor and a communication module, the communication module and the temperature detection module are coupled with the processor, the communication module is in data communication with the mobile phone and the server respectively, and the controller is coupled with the motor and the processor respectively. The specific process shown in fig. 2 will be described in detail below.
Step S101, the temperature detection module collects the temperature of the motor and sends the collected temperature to the processor, so that the processor sends the temperature to the communication module, and the communication module sends the temperature data sent by the processor to the mobile phone and the server.
And step S102, the server receives the temperature data and judges whether the temperature data is greater than the preset value.
The preset value is a number preset according to the normal temperature of the motor, and the value can be selected according to different scenes, which is not specifically limited herein. For example, it may be 50 or 100.
And S103, if yes, the server sends a control instruction to the controller so that the controller controls the motor to reduce the running speed according to the control instruction.
In one embodiment, the server sends a control instruction to the communication module, so that the communication module forwards the control instruction to the processor, so that the processor forwards the control instruction to the controller, so that the controller controls the motor to reduce the running speed according to the control instruction.
And step S104, the server judges whether the temperature data is greater than the preset value under the preset condition.
As an embodiment, the server determines whether the temperature data is greater than the preset value within a preset continuous time period; and if the temperature data is larger than the preset value in the preset continuous time period, determining that the times meet a preset condition. Preferably, the server determines whether the temperature data is greater than the preset value within three consecutive days.
And S105, if yes, the server sends prompt information to an elevator maintainer so that the elevator maintainer overhauls the motor.
The server may send the prompt message by a short message, or may send the page push message. Here, the number of the carbon atoms is not particularly limited.
As an embodiment, the elevator safety device based on laser thermometry further includes a monitoring terminal coupled with the communication module, and the method further includes:
and the monitoring terminal receives the temperature data sent by the processor and displays the temperature data in real time.
In summary, the invention provides an elevator safety device and a temperature processing method based on laser temperature measurement, wherein infrared laser is emitted to a motor through a temperature detection module in an infrared thermometer, so that the temperature of the motor is collected through the infrared laser, the collected temperature is sent to a processor, and the processor sends the temperature to a mobile phone and a server through a communication module, so that a user can remotely detect the temperature condition of the motor in real time through the mobile phone, the monitoring efficiency of the motor is effectively improved, the collected temperature is processed in real time through the server, the problem accumulation can be effectively avoided, and the safe operation quality of an elevator is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A temperature processing method is characterized by being applied to an elevator safety device based on laser temperature measurement, wherein the elevator safety device based on laser temperature measurement comprises a motor arranged in an elevator, and further comprises a controller, an infrared thermometer, a mobile phone and a server, wherein the infrared thermometer is arranged on the motor and comprises a temperature detection module, a processor and a communication module, the communication module and the temperature detection module are coupled with the processor, the communication module is in data communication with the mobile phone and the server respectively, and the controller is coupled with the motor and the processor respectively; the method comprises the following steps:
the temperature detection module collects the temperature of the motor and sends the collected temperature to the processor, so that the processor processes the temperature and then sends the processed temperature to the communication module, and the communication module sends the temperature data sent by the processor to the mobile phone and the server;
the server receives the temperature data and judges whether the temperature data is greater than a preset value;
if the temperature data is larger than a preset value, the server sends a control instruction to the controller so that the controller controls the motor to reduce the running speed according to the control instruction;
the server judges whether the temperature data is greater than the preset value under the condition of meeting the preset condition, and the method comprises the following steps: the server judges whether the temperature data is larger than the preset value within a preset continuous time period or not, and if the temperature data is larger than the preset value within the preset continuous time period, the server sends prompt information to an elevator maintainer so that the elevator maintainer overhauls the motor.
2. The method of claim 1, wherein the determining, by the server, whether the temperature data is greater than the predetermined value within a predetermined continuous time period comprises:
and the server judges whether the temperature data is larger than the preset value within three consecutive days.
3. The method of claim 1, wherein the server sends a control command to the controller to cause the controller to control the motor to reduce the operating speed according to the control command, and the method comprises:
the server sends a control instruction to the communication module to enable the communication module to forward the control instruction to the processor, so that the processor forwards the control instruction to the controller, and the controller controls the motor to reduce the running speed according to the control instruction.
4. The method of claim 1, wherein the laser thermometry-based elevator safety device further comprises a monitor terminal coupled with the communication module, the method further comprising:
and the monitoring terminal receives the temperature data sent by the processor and displays the temperature data in real time.
5. An elevator safety device based on laser temperature measurement is characterized by comprising a motor arranged in an elevator, a controller, an infrared thermometer, a mobile phone and a server, wherein the infrared thermometer is arranged on the motor and comprises a temperature detection module, a processor and a communication module; the controller is coupled with the motor and the processor respectively;
the controller is used for controlling the running speed of the motor;
the temperature detection module is used for collecting the temperature of the motor and sending the collected temperature to the processor;
the processor is used for processing the temperature and then sending the processed temperature to the communication module, so that the communication module sends the temperature data sent by the processor to the mobile phone and the server;
the mobile phone is used for receiving the temperature data sent by the processor, so that a user can monitor the temperature change of the motor in real time based on the mobile phone;
the server is used for receiving the temperature data and also used for judging whether the temperature data is larger than a preset value;
if the temperature data is larger than a preset value, the server is further used for sending a control instruction to the controller so that the controller controls the motor to reduce the running speed according to the control instruction;
the server is further configured to determine whether the temperature data is greater than the preset value when a preset condition is met, including: the server judges whether the temperature data is larger than the preset value within a preset continuous time period or not, and if the temperature data is larger than the preset value within the preset continuous time period, the server is further used for sending prompt information to an elevator maintainer so that the elevator maintainer overhauls the motor.
6. The elevator safety device based on laser temperature measurement according to claim 5, wherein the communication module is any one of a GPRS communication module, a wifi communication module, a ZigBee chip or a Bluetooth module.
7. The laser thermometry-based elevator safety device of claim 5, further comprising a monitor terminal coupled with the communication module;
the monitoring terminal is used for receiving the temperature data sent by the processor and displaying the temperature data in real time.
8. The laser thermometry-based elevator safety device according to claim 7, further comprising an alarm module, the alarm module coupled with the monitoring terminal;
and the alarm module is used for carrying out voice alarm according to the control instruction sent by the monitoring terminal.
9. The elevator safety device based on laser thermometry of claim 5, wherein the temperature detection module is an infrared temperature sensor.
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| CN101044077A (en) * | 2005-08-25 | 2007-09-26 | 三菱电机株式会社 | Elevator operation control device |
| CN201362532Y (en) * | 2009-03-06 | 2009-12-16 | 山东泰山天盾矿山机械有限公司 | Electrical control device for high-voltage multi-PLC frequency converter low-frequency brake of hoisting machine |
| CN101941623B (en) * | 2010-09-30 | 2014-04-16 | 深圳技师学院 | Traction machine detection or diagnosis system |
| CN204675555U (en) * | 2015-06-03 | 2015-09-30 | 洛阳普凡电气自动化有限公司 | A kind of Mine Hoist Brake Online Monitoring Control System |
| CN205381840U (en) * | 2016-03-17 | 2016-07-13 | 舟山市南炜通力电梯工程有限公司 | Elevator door motor device with intelligent monitoring system |
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