CN109973804B - Remote monitoring system and method for oil quantity of elevator oil tank - Google Patents
Remote monitoring system and method for oil quantity of elevator oil tank Download PDFInfo
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- CN109973804B CN109973804B CN201910255715.4A CN201910255715A CN109973804B CN 109973804 B CN109973804 B CN 109973804B CN 201910255715 A CN201910255715 A CN 201910255715A CN 109973804 B CN109973804 B CN 109973804B
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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
- 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
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1253—Lubricating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
- F16N29/04—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems enabling a warning to be given; enabling moving parts to be stopped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
- F16N2260/02—Indicating
- F16N2260/04—Oil level
Abstract
The invention provides a system and a method for remotely monitoring the oil quantity of an elevator oil tank, which belong to the technical field of elevators. The remote monitoring system and the remote monitoring method for the oil quantity of the elevator oil tank can remotely monitor the oil quantity without visiting a site, and effectively reduce safety accidents caused by high-altitude frequent oil quantity inspection; on the other hand, the automation level of the oil quantity monitoring work and the efficiency of the oil injection work are also improved.
Description
Technical Field
The invention relates to the technical field of elevators, in particular to a system and a method for remotely monitoring the oil quantity of an elevator oil tank.
Background
The elevator guide rail provides guidance for the car and the counterweight when the elevator runs and also plays a supporting role during braking of the safety tongs, and the guide rail bears the impact force during braking of the car and the elevator and the impact force during emergency braking of the safety tongs and the like while playing a guiding role, is an important part in an elevator system and needs to be practically maintained.
The oil lubricator used for controlling friction loss is generally positioned on the periphery of guide shoes on the left side and the right side of the upper part of the elevator car, and can provide oil for the guide rail device when the elevator runs, so that the elevator guide rail can be protected from being rusted, and the running efficiency is improved. In the prior art, when the oil quantity of an elevator guide rail oil ejector is routinely checked, an inspector usually determines the oil quantity reserve condition from the upper part of an elevator car by a naked eye mode to judge whether the oil quantity reserve condition is sufficient or not. When an inspector frequently inspects the oil quantity situation at high altitude, on one hand, the method for determining the oil quantity situation through visual inspection has poor reliability and low monitoring efficiency; on the other hand, the inspection and maintenance personnel can fall off when working high above the ground, so that great potential safety hazards are generated. When the oil quantity is insufficient, the traditional method for checking the oil quantity regularly by manpower may miss the optimal time for supplementing the oil quantity to the elevator, so that the normal operation of the elevator is affected due to the damage of the guide rail caused by the lack of the oil quantity.
Disclosure of Invention
The invention provides a system and a method for remotely monitoring the oil quantity of an elevator oil tank, aiming at remotely monitoring the oil quantity of the elevator oil tank and preventing the normal operation of an elevator from being influenced because the condition of insufficient oil quantity is not found in time.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a remote monitoring system for the oil quantity of an elevator oil tank, which comprises a remote control device for implementing remote signal transceiving processing, a remote monitoring server for processing elevator operation items, an oil quantity sensor for sensing the oil quantity of the oil tank of an oil filler and a data processing device for transceiving processing signals, wherein the remote control device is used for implementing remote signal transceiving processing; the oil mass sensor is connected with the oil feeder oil tank in an induction manner, and can judge whether the oil mass is sufficient or not; the oil quantity sensor is in communication connection with the data processing device, and when the oil quantity sensor transmits an oil quantity shortage signal, the data processing device can receive the oil quantity shortage signal; the remote control device is in communication connection with the data processing device; the remote control device is in communication connection with the remote monitoring server.
The remote monitoring system for the oil quantity of the elevator oil tank provided by the invention preferably further comprises a noise measuring device for measuring the noise of the elevator and a vibration quantity measuring device for measuring the vibration frequency of the elevator; the noise measuring device and the vibration quantity measuring device are respectively in communication connection with the data processing device.
The remote monitoring system for the oil quantity of the elevator oil tank provided by the invention preferably further comprises an elevator control cabinet for controlling the operation of an elevator and a remote monitoring client for implementing remote monitoring; the elevator control cabinet is in communication connection with the remote control device, and the remote monitoring server receives elevator running information in the elevator control cabinet through the remote control device; the remote monitoring client is in communication connection with the remote monitoring server, and the remote monitoring client can share the database resources of the remote monitoring server.
According to the control method of the elevator oil tank oil mass remote monitoring system, preferably, the oil mass sensor is a floating ball type liquid level switch; when the oil quantity sensor detects that the oil quantity is smaller than the preset oil quantity minimum value, an oil quantity shortage signal can be sent to the data processing device.
Based on the elevator oil tank oil mass remote monitoring system provided by the invention, the invention also provides a control method of the elevator oil tank oil mass remote monitoring system, which comprises the following steps:
the oil mass sensor senses the oil mass of an oil tank of the oil feeder in real time, and when the sensed oil mass is smaller than a set value, the oil mass sensor sends an oil mass shortage signal to the data processing device;
when the data processing device receives the oil quantity shortage signal, alarm information of oil quantity shortage is transmitted to the remote control device;
and the remote control device transmits the alarm information of the position identification and insufficient oil quantity of the oil tank of the elevator oil filler to a remote monitoring server.
The control method of the elevator oil tank oil quantity remote monitoring system provided by the invention preferably further comprises the following steps:
when the remote monitoring server receives the alarm information of insufficient oil quantity, a remote check command is sent to the remote control device;
the remote control device receives the remote inspection command and sends a real-time noise and vibration data detection instruction to the data processing device;
the data processing device is communicated with the noise measuring device and the vibration measuring device respectively to obtain real-time noise and vibration detection data, and the data processing device sends the real-time noise and vibration detection data to the remote monitoring server through the remote control device;
and the remote monitoring server diagnoses the currently received real-time noise and vibration quantity detection data, judges the severity of insufficient oil quantity and processes the severity.
The control method of the elevator oil tank oil mass remote monitoring system provided by the invention preferably comprises the following steps that a remote monitoring server diagnoses currently received real-time noise and vibration mass detection data, judges the severity of insufficient oil mass and processes the severity of insufficient oil mass:
the remote monitoring server inquires a historical noise and vibration database of the elevator marked as an insufficient oil state at present;
the remote monitoring server respectively compares the real-time noise and vibration quantity detection data with the average values in the historical noise and vibration quantity database;
if the deviation degree of the real-time noise and vibration quantity detection data and the average value of the noise and vibration quantity in the historical database conforms to the set range, the remote monitoring server defines the oil quantity shortage degree as a light level and stores the real-time noise and vibration quantity detection data to the database;
if the deviation degree of the real-time noise and vibration quantity detection data and the average value of the noise and vibration quantity in the historical database exceeds the preset range, the remote monitoring server defines the fuel quantity shortage degree as serious, immediately sends out a fuel quantity serious shortage warning to a manager and/or maintenance personnel, and pushes the information of the fuel tank with the fuel quantity shortage.
The control method of the elevator oil tank oil quantity remote monitoring system provided by the invention preferably further comprises the following steps: the remote monitoring server receives real-time elevator operation information transmitted by the elevator control cabinet through the remote control device and executes fault diagnosis;
the remote monitoring server receives real-time insufficient oil quantity alarm information, real-time noise detection data and real-time vibration quantity detection data through a remote control device;
the remote monitoring server logs real-time elevator operation information, fault diagnosis results, real-time insufficient oil alarm information, real-time noise detection data and real-time vibration detection data into a database in sequence according to time sequence.
The control method of the elevator oil tank oil quantity remote monitoring system provided by the invention preferably further comprises the following steps:
the remote monitoring server updates the fault diagnosis result of the real-time elevator operation information and/or the insufficient oil quantity alarm information and/or the real-time noise detection data and/or the real-time vibration quantity detection data to a remote monitoring client interface;
the remote monitoring client can execute the sending of a remote control command or a remote inspection command according to the control of an operator;
after the remote monitoring client executes the sending of the remote control command or the remote inspection command, the remote monitoring server sends the remote control command or the remote inspection command to the elevator control cabinet and/or the data processing device through the remote control device and receives the execution result of the remote control command or the remote inspection command;
and the remote monitoring server logs the execution result of the remote control command or the remote check command in the database and updates the remote monitoring client.
The control method of the elevator oil tank oil quantity remote monitoring system provided by the invention preferably further comprises the following steps:
the remote monitoring server sends a remote check command to the remote control device according to the date, time and times logged in the database;
the remote control device receives the remote inspection command and requires the elevator control cabinet and/or the data processing device to feed back the remote inspection result;
the remote control device transmits the remote inspection result to the remote monitoring server;
and the remote monitoring server logs the received remote inspection result in the database.
The technical scheme has the following advantages or beneficial effects:
the elevator oil tank oil mass remote monitoring system and the method provided by the invention can remotely sense the oil mass information of the elevator oil ejector even without visiting the site when the oil mass is insufficient, so that the trouble of frequent visual inspection by manpower is avoided, and the condition of safety accidents caused by high-altitude oil mass inspection operation of maintenance technicians is reduced; furthermore, the noise and vibration amount can be remotely checked when the oil amount is insufficient, so that the real-time noise and vibration value of the elevator can be measured, the severity degree of the lack of the oil amount can be predicted according to the collected data of the insufficient oil amount of the historical database, and the oil injection time can be predicted. Furthermore, the elevator real-time operation information, the operation mileage, the operation faults and the oil quantity monitoring can be linked, and the oil quantity of each oil tank can be optimized. Through carrying out remote monitoring to the oil tank oil mass, can prevent because of unusual elevator noise and vibration that the oil mass is not enough arouses, can also prevent the damage of mechanisms such as guide rail, guide shoe of elevator system. The elevator oil tank oil mass remote monitoring system and the control method provided by the invention can perform remote control and remote inspection besides remote monitoring on the elevator running condition and the oil mass condition, thereby improving the elevator safety processing efficiency and management quality to the maximum extent, providing real-time technical guidance and fault alarm for oil mass monitoring, reducing the occurrence of elevator accidents caused by insufficient oil mass and avoiding unnecessary loss.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic diagram of the architecture of an elevator oil tank oil quantity remote monitoring system provided by embodiment 1 of the invention;
fig. 2 is a schematic flow chart of a control method of an elevator oil tank oil quantity remote monitoring system provided by embodiment 1 of the invention;
fig. 3 is a schematic flow chart of a control method of an elevator oil tank quantity remote monitoring system provided by embodiment 1 of the invention;
fig. 4 is a schematic flow chart of a control method of an elevator oil tank quantity remote monitoring system provided by embodiment 1 of the invention;
fig. 5 is a schematic flow chart of a control method of an elevator oil tank quantity remote monitoring system provided by embodiment 1 of the invention;
fig. 6 is a schematic flow chart of a control method of an elevator oil tank quantity remote monitoring system provided by embodiment 1 of the invention;
fig. 7 is another schematic flow chart of a method for controlling a system for remotely monitoring the oil level in an oil tank of an elevator, which is provided by embodiment 1 of the invention.
Detailed Description
The invention will be further described with reference to the following drawings and specific examples, which are not intended to limit the invention thereto.
Example 1:
the maintenance of the elevator guide rail is an important link for ensuring the safe and stable operation of the elevator, and in order to ensure the long-term stable operation of the car relative to the guide rail, the oil quantity in the oil ejector needs to be supplemented in time. Elevator grease squirt generally installs in elevator car top, and among the prior art, its oil mass monitoring relies on the technical staff regularly to the car top visual inspection oil mass still whether have the surplus, if find that the oil mass is deficient or be close to lacking, the technical staff can implement the oiling at the high altitude. Because different elevator oil consumption have the difference, in order to prevent that the oil quantity replenishment is not in place or the maintenance is not in time and cause the influence to elevator operation, but guarantee the efficiency of oil mass supply and oiling to a certain extent, need regularly to inspect and maintain each elevator. Therefore, the oiling time is too early and too late, so that in order to prevent potential safety hazards caused by missing the oiling time, technicians for inspection and maintenance often perform frequent inspection and frequent oiling, and the method has low efficiency.
In view of the above problems, in order to realize remote and timely monitoring of the fuel quantity condition of the fuel tank, the problems of low efficiency and high risk caused by the traditional manual monitoring and supplementing mode are solved. As shown in fig. 1, an embodiment 1 of the present invention provides an elevator oil tank oil quantity remote monitoring system, which includes a remote control device 1 for implementing remote signal transceiving processing, a remote monitoring server 2 for processing elevator operation items, an oil quantity sensor 4 for sensing the oil quantity of an oil feeder oil tank 3, and a data processing device 5 for transceiving processing signals; the oil quantity sensor 4 is connected with the oil feeder oil tank 3 in an induction mode, and the oil quantity sensor 4 can judge whether the oil quantity is sufficient or not; the oil quantity sensor 4 is in communication connection with the data processing device 5, and when the oil quantity sensor 4 transmits an oil quantity shortage signal, the data processing device 5 can receive the oil quantity shortage signal; the remote control device 1 is in communication connection with the data processing device 5; the remote control device 1 is in communication connection with the remote monitoring server 2.
Through above-mentioned system architecture, when the oil filler oil tank oil mass of elevator car top is not enough, can convey the not enough condition of elevator oil mass to remote control device through data processing device, remote control device can further reflect the not enough condition of this regional elevator oil mass to remote monitoring server through the mode with remote monitoring server communication. Therefore, the remote monitoring server can push the information of insufficient oil quantity of each elevator to related managers and maintenance workers on the basis of the system structure, so that the remote monitoring of the oil quantity condition of the oil tank is realized, unnecessary one-by-one inspection is avoided, the oil quantity of the target elevator oil tank notified by the remote monitoring server is supplemented, and the efficiency of actual oil injection work is improved.
With the system configuration provided in embodiment 1 of the present invention, the fuel quantity sensor can only issue an alarm when the fuel quantity is insufficient, the sensing and determining of the fuel quantity can preset a condition for determining that the fuel quantity is insufficient, and once the condition for insufficient fuel quantity is satisfied, if the remote terminal does not perform the fuel quantity replenishment processing, the fuel quantity sensor will always issue a fuel quantity shortage signal to the data processing device, and even if the fuel tank is empty for a long time, the fuel quantity sensor can issue an alarm continuously. However, when the remote monitoring server pushes the insufficient oil quantity information of the oil tank to the relevant personnel, the relevant personnel cannot know the shortage of the oil quantity of the oil tank, and the sequence of the filling work cannot be arranged, so that although the monitoring system structure can improve the efficiency of the oil quantity checking and the filling work, the elevator safety operation risk caused by untimely filling can still occur.
Considering that elevator car, guide rail can steady motion under normal lubricated cooperation, send even less sound, and the oil mass lacks can lead to the elevator operation to produce harsh noise, still can accompany certain vibration simultaneously. However, it is understood by those skilled in the art that the generation of noise and vibration amounts is not necessarily caused by the lack of oil amount, and presents a challenge to remote monitoring work. In order to solve the problem and further improve the implementation quality of the oil tank quantity remote monitoring system, as shown in fig. 1, the elevator oil tank quantity remote monitoring system provided by the embodiment 1 of the invention further comprises a noise measuring device 6 for measuring the noise of the elevator and a vibration quantity measuring device 7 for measuring the vibration frequency of the elevator; the noise measuring device 6 and the vibration quantity measuring device 7 are respectively in communication connection with the data processing device 5, so that a system foundation is laid for remote data acquisition of noise and vibration quantity when the oil quantity is insufficient, the data processing device is respectively in communication connection with the noise measuring device and the vibration quantity measuring device, an oil quantity insufficient signal, noise data and vibration quantity data can be obtained through the data processing device and can be transmitted to a remote monitoring server through the remote control device for further utilization, and the system structure can obtain precious algorithm modeling data on one hand and can also predict the oil quantity condition of a real-time oil tank by implementing a certain control method on the other hand.
Furthermore, as shown in fig. 1, the elevator oil tank quantity remote monitoring system further comprises an elevator control cabinet 8 for controlling the operation of the elevator and a remote monitoring client 9 for implementing remote monitoring; the elevator control cabinet 8 is in communication connection with the remote control device 1, and the remote monitoring server 2 receives elevator running information in the elevator control cabinet 8 through the remote control device 1; the remote monitoring client 9 is in communication connection with the remote monitoring server 2, and the remote monitoring client 9 can share the database resource of the remote monitoring server 2.
The elevator oil tank oil mass remote monitoring system provided by the embodiment 1 of the invention is in communication connection with the remote control device through the elevator control cabinet, the elevator operation information in the elevator control cabinet can be continuously transmitted to the remote monitoring server through the remote control device, the remote monitoring client is in communication connection with the remote monitoring server, a foundation can be laid for the remote monitoring client to receive the elevator operation condition and the oil mass monitoring condition of the oil tank through an interface in real time, the elevator operation condition and the oil mass monitoring condition can be processed at the first time, meanwhile, the remote monitoring client is generally managed by an operator background, remote commands such as remote control and remote inspection commands can be executed, and the remote control operation of the elevator control cabinet and the data processing device can be realized according to the actual control requirement of the remote monitoring client.
For the oil quantity sensor, the purpose of the elevator oil tank oil quantity remote monitoring system provided by the embodiment 1 of the invention can be realized as long as the oil quantity sensor can sense the oil quantity in the oil tank of the oil feeder and send a signal for reporting the insufficient oil quantity to the data processing device when the oil quantity is insufficient, and the data processing device can send an alarm prompt for the insufficient oil quantity to the remote monitoring server terminal through the remote control device when the signal for reporting the insufficient oil quantity is received, so that a manager can process the oil quantity in a targeted manner at the first time, and the efficiency of oil tank oil quantity monitoring is improved. For example, the oil quantity sensor can be a floating ball type liquid level switch, and the oil quantity sensor can control the on-off of the switch by detecting the liquid level and send a corresponding switch signal to a data processing device in communication connection with the switch. In implementation, the data processing device may be disposed on the top of the car, the data processing device may be a PCB capable of receiving the oil shortage signal and communicating with the remote control device, the noise measurement device, and the vibration measurement device, and the specific structure of the data processing device and the communication mode of the data processing device and the remote control device are not limited in detail in embodiment 1 of the present invention, and the purpose of the present invention can be achieved by completing the transmission and reception signal processing and transmission control accordingly. For example, the data processing device can communicate with the remote control device in a power line communication mode, and the power line communication modem is adopted to transmit data, so that the plug and play characteristic is achieved, the existing power line can be used for building a network, and various monitoring devices and intelligent electrical devices can be conveniently connected for data transmission.
Based on the elevator oil tank oil quantity remote monitoring system provided in embodiment 1 of the present invention, embodiment 1 of the present invention further provides a control method of the elevator oil tank oil quantity remote monitoring system, as shown in fig. 2, including:
s101, sensing the oil quantity of an oil tank of the oil feeder in real time by an oil quantity sensor, and sending an oil quantity shortage signal to a data processing device by the oil quantity sensor when the sensed oil quantity is smaller than a set value;
s111, when the data processing device receives the oil quantity shortage signal, transmitting alarm information of oil quantity shortage to the remote control device;
and S121, the remote control device transmits the alarm information of the position identification and insufficient oil quantity of the oil tank of the elevator oil ejector to a remote monitoring server.
By the control method, a technician can sense whether the oil quantity of the oil tank of each elevator lubricator is sufficient remotely without visiting the site for frequent oil quantity inspection. The remote monitoring server receives the alarm information that elevator lubricator oil tank position identification information and oil mass are not enough that remote control device sent, can fix a position to the elevator that the oil mass is not enough rapidly to further guarantee personnel through the maintenance of propelling movement to the regional scene in which the elevator is located, realize that timely elevator oil mass is deficient the condition and handle. Compared with the traditional processing mode depending on-site oil quantity inspection, the remote monitoring mode greatly improves the finding efficiency and the processing efficiency of insufficient oil quantity, and in the process, the safety accidents caused by high-altitude operation are reduced.
Further, a control method of the elevator oil tank oil quantity remote monitoring system provided in embodiment 1 of the present invention further includes:
s201, when the remote monitoring server receives the alarm information of insufficient oil quantity, a remote check command is sent to a remote control device;
s211, the remote control device receives the remote inspection command and sends a real-time noise and vibration data detection instruction to the data processing device;
s221, the data processing device is communicated with the noise measuring device and the vibration measuring device respectively to obtain real-time noise and vibration detection data, and the data processing device sends the real-time noise and vibration detection data to a remote monitoring server through a remote control device;
s231, the remote monitoring server diagnoses the currently received real-time noise and vibration quantity detection data, judges the severity of insufficient oil quantity and processes the severity.
When the remote monitoring server receives the alarm information of insufficient oil quantity, the remote monitoring server further performs remote check on real-time noise and vibration quantity, can collect the noise and vibration information caused by insufficient oil quantity and reserve the noise and vibration information to a database, and is convenient for optimizing an oil quantity shortage condition diagnosis algorithm of the elevator oil tank oil quantity remote monitoring system provided by the embodiment 1 of the invention. On the other hand, when the alarm of insufficient oil quantity is received, the current conditions of real-time noise and vibration quantity are analyzed and diagnosed by combining the database, the severity of the insufficient oil quantity can be judged, even the oil quantity condition at the future moment can be predicted, and the subsequent oil injection work and the elevator system control strategy can be better arranged.
For the control method of the elevator oil tank oil quantity remote monitoring system provided by embodiment 1 of the present invention, the step "S231 the remote monitoring server diagnoses the currently received real-time noise and vibration quantity detection data, judges the severity of the oil quantity insufficiency, and processes" specifically is:
s301, the remote monitoring server inquires a historical noise and vibration database of the elevator marked as an insufficient oil state at present;
s311, the remote monitoring server respectively compares the real-time noise and vibration quantity detection data with the average values in the historical noise and vibration quantity database;
s321, if the deviation degree of the real-time noise and vibration quantity detection data and the average value of the noise and vibration quantity in the historical database conforms to a set range, the remote monitoring server defines the oil quantity shortage degree as a light level, and stores the real-time noise and vibration quantity detection data to the database;
and S331, if the deviation degree of the real-time noise and vibration quantity detection data and the average value of the noise and vibration quantity in the historical database exceeds a preset range, the remote monitoring server defines the oil quantity shortage degree as serious, immediately sends out an alarm of serious oil quantity shortage to a manager and/or maintenance personnel, and pushes information of an oil tank with insufficient oil quantity.
When the oil shortage alarm is carried out, the remote monitoring server obtains real-time noise parameters and vibration quantity measurement parameters of the elevator side through a remote checking instruction, the real-time noise parameters and the vibration quantity measurement parameters are compared with a historical noise and vibration quantity database accumulated by a target elevator for alarming the oil shortage, for example, whether the current oil shortage condition is serious is judged by comparing the deviation degree (for example, standard deviation) of the average value of each parameter of the database, and the historical database of each elevator can collect data in advance to build the data. When the deviation between the data value detected in real time and the average value of the historical database of the corresponding elevator is small, the data value is stored in the database, the information of the historical database can be further enriched, and the accuracy and the effectiveness of the oil quantity monitoring result are improved. And when the deviation degree of the real-time detection value and the average value exceeds the preset range, the current oil quantity shortage degree is considered to be serious, the safe operation of the elevator is possibly influenced, the remote monitoring server immediately sends out a serious warning to related personnel and pushes out the information of the oil tank with insufficient oil quantity, the emergency processing is facilitated at the first time, and technicians in the area where the oil tank is located are contacted at the first time to implement a maintenance strategy.
Because the oil consumption of different elevator oil tanks is different, such as different use frequency and different numbers of floors, the oil demand of the oil tank is different. In order to further optimize the monitoring quality optimization of the elevator oil tank oil quantity remote monitoring system and the control method provided by embodiment 1 of the invention, the control method of the elevator oil tank oil quantity remote monitoring system further comprises the following steps:
s401, the remote monitoring server receives real-time elevator operation information transmitted by the elevator control cabinet through the remote control device and executes fault diagnosis;
s411, the remote monitoring server receives real-time insufficient oil quantity alarm information, real-time noise detection data and real-time vibration quantity detection data through a remote control device;
and S421, the remote monitoring server sequentially logs real-time elevator operation information, fault diagnosis results, real-time insufficient oil alarm information, real-time noise detection data and real-time vibration detection data into a database according to a time sequence.
The real-time elevator operation information, the real-time fault diagnosis result, the real-time alarm information of insufficient oil quantity, the real-time noise monitoring data and the real-time vibration quantity monitoring data are all collected to a remote monitoring server and are sequentially stored in a database according to the time sequence, statistical information can be accumulated and can be automatically collected according to the time period required by a statistic person, so that the elevator operation history (such as the accumulated operation mileage, the number of ascending and descending layers, the speed, the time and the like of each elevator and the elevator fault data related to insufficient oil quantity), the insufficient oil quantity condition, the noise and the vibration quantity relation can be conveniently established, the oil quantity of each elevator oil tank can be more conveniently optimized according to the accumulated historical data, so that a more regular checking and oil injection implementation strategy can be conveniently established under the condition that the safe operation of the elevator is not influenced, for example, by formulating a corresponding model algorithm, the method and the device can predict the running mileage of the elevator or the change of the related parameters of the elevator running and the possibility of occurrence of related faults through the real-time parameter values of the noise vibration quantity when the oil quantity is insufficient, which can be understood by those skilled in the art and will not be described herein.
Furthermore, the control method of the elevator oil tank oil quantity remote monitoring system provided by embodiment 1 of the present invention further includes:
s501, the remote monitoring server updates a fault diagnosis result and/or insufficient oil quantity alarm information and/or real-time noise detection data and/or real-time vibration quantity detection data of real-time elevator operation information to a remote monitoring client interface;
s511, the remote monitoring client can execute the sending of a remote control command or a remote inspection command according to the control of an operator;
s521 the remote monitoring server sends the remote control command or the remote inspection command of the remote monitoring client to the elevator control cabinet and/or the data processing device through the remote control device and receives the execution result of the remote control command or the remote inspection command;
s531 the remote monitoring server logs the execution result of the remote control command or the remote check command in the database and updates the remote monitoring client.
The remote monitoring client is in communication connection with the remote monitoring server, and the real-time information can be further visually displayed on a remote monitoring client interface through the remote monitoring server, so that the operation and management personnel can conveniently handle and recognize the real-time information in real time. Meanwhile, when the data received in real time have problems, the remote monitoring client can execute corresponding remote control commands or remote inspection commands according to the control of an operator, and further obtain the execution results of visual remote control and remote inspection through an interface, so that related technicians can follow up the oil quantity condition of the oil tank and the fault condition of the elevator according to the monitoring requirements at the first time. For example, when the oil amount is seriously insufficient and the manual oil injection efficiency is low, the remote automatic processing on the condition of insufficient oil amount can be realized by researching and developing a related automatic oil injection system and executing a remote control instruction on a remote monitoring client by an operator; or, when no proper automatic oil injection system exists, the related technical personnel can recognize the warning that the current oil quantity is seriously insufficient at the first time, and the emergency degree is higher and the manual oil injection is not available, the operator of the remote monitoring client can execute a specific remote control command to change the running state of the elevator (such as elevator stopping), so that the occurrence of safety accidents is prevented, the service life of each device in the elevator monitoring system is prolonged better, and the maintenance cost is reduced.
In order to enable the remote monitoring system for the oil quantity of the elevator oil tank provided by embodiment 1 of the present invention to ensure the quality and reliability of monitoring in an emergency, the control method for the remote monitoring system for the oil quantity of the elevator oil tank provided by embodiment 1 of the present invention further includes:
s601, the remote monitoring server sends a remote check command to the remote control device according to the date, time and times of logging in the database;
s611, the remote control device receives the remote inspection command and requires the elevator control cabinet and/or the data processing device to feed back the remote inspection result;
s621, the remote control device transmits the remote check result to the remote monitoring server;
s631 the remote monitoring server logs the received remote checking result in the database.
The remote monitoring system for the oil quantity of the elevator oil tank automatically executes the timing and quantitative remote inspection on the elevator control cabinet and/or the data processing device, so that the trouble of manual field inspection is saved, meanwhile, the system automatically logs the result of the remote inspection into the database, and a terminal (such as a remote monitoring client) in communication connection with the remote monitoring server can log in the database at the first time to check the inspection result and process the inspection result in time. If the remote inspection result is abnormal, the remote monitoring system indicates that the oil quantity of the elevator oil tank cannot normally operate currently, and corresponding monitoring, control and inspection work can be implemented manually. Thus, through automatic and manual interactive intervention, the monitoring work of the oil quantity of the elevator oil tank can be continuously and effectively carried out.
When the elevator oil tank oil quantity remote monitoring system and the control method thereof provided by the embodiment 1 of the invention are implemented, the remote monitoring server can store the elevator running information, the fault information and the related information of insufficient oil quantity which run in real time into the database, and can execute the fault sensing and diagnosing program to judge whether the fault information and the information of insufficient oil quantity exist currently. If fault information and insufficient oil quantity information exist, the fault information and the insufficient oil quantity information can be pushed to relevant personnel for processing, for example, the fault information and the insufficient oil quantity information can be pushed to a remote monitoring client. The remote monitoring client receives the fault information and the oil quantity shortage information transmitted by the remote monitoring server and can confirm the fault information and the oil quantity shortage information, and if a remote client operator confirms the fault information and/or the oil quantity shortage information, a remote check command can be executed to measure the noise and the vibration value. Of course, the remote monitoring server may also automatically perform remote inspection without confirmation, and collect noise and vibration values when the oil amount is insufficient. When the remote monitoring server/remote monitoring client receives the oil shortage information, the severity of the oil shortage degree can be judged, a corresponding control strategy is implemented according to the severity degree, for example, when the severity is light, technicians supplement the oil periodically according to the original set period. And when the oil shortage is in a serious state, the remote monitoring server directly transmits the warning of the serious shortage to related maintenance personnel, so that the maintenance personnel can immediately arrive at the site for oil injection. In order to further improve the processing efficiency when the oil quantity is seriously insufficient and reduce the damage of the guide rail of the elevator caused by the lack of the oil quantity, the remote monitoring client can also implement a remote control instruction to realize automatic control such as the stop of the elevator or the automatic oil injection of the system.
In the implementation process of the elevator oil tank oil mass remote monitoring system and the control method provided by the embodiment 1 of the invention, the remote control device can receive elevator real-time operation data from the elevator control cabinet, the remote control device stores the real-time operation data in the buffer area and determines the current connection condition with the remote monitoring server, and if the connection is not successful, the remote control device sends the real-time operation data after waiting for the successful connection; meanwhile, the remote control device also confirms whether the remote control and remote inspection command information is received through a wired or wireless network, when the remote control and remote inspection information is received, the command is transmitted to the elevator control cabinet and the data processing device, and the elevator control cabinet and the data processing device can control the operation of the elevator or measure the noise vibration quantity according to the remote control and remote inspection command. The remote monitoring server receives the elevator operation data transmitted by the remote control device, stores the elevator operation data which operates in real time in a database, and if fault data exists, the elevator operation data can be displayed on the remote monitoring client so that a manager can receive fault information. The remote monitoring system for the oil quantity of the oil tank of the elevator, which is provided by the embodiment 1 of the invention, can also judge whether the remote control and remote inspection commands are finished, if the remote control and remote inspection commands are not finished successfully, the remote monitoring server can automatically execute the control and inspection again, check whether the related inspection results are received or not according to the inspection date, time and feedback information requirements when the remote monitoring server executes the automatic remote inspection, and log the received inspection results in the database in time, so that the integrity and reliability of the data in the database are ensured.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.
For the monitoring system and the control method mentioned in the description of the invention, further circuit design and specific programmed control and algorithm design can be realized based on the disclosed thought, a fault detection algorithm can be designed and implemented for fault analysis to carry out fault analysis on elevator operation parameters, and a specific prediction algorithm for the lack degree of oil quantity can also be developed through operation data accumulated in a database, which can be understood by those skilled in the art. Meanwhile, the communication connection and the inductive connection described in the present invention only represent an implementation idea, and do not affect the technical solution of the specific level obtained by the skilled in the art according to the system architecture disclosed in the present invention, which is clear and understood by the skilled in the art.
While the preferred embodiments of the invention have been described above, the invention is not limited to the specific embodiments described above, wherein equipment and structures not described in detail are understood to be practiced in a manner common to those of skill in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention without departing from the technical solution of the present invention.
Claims (7)
1. A remote monitoring system for the oil quantity of an elevator oil tank is characterized by comprising a remote control device for implementing remote signal transceiving processing, a remote monitoring server for processing elevator operation items, an oil quantity sensor for sensing the oil quantity of the oil tank of an oil feeder and a data processing device for transceiving processing signals; the oil mass sensor is connected with the oil feeder oil tank in an induction manner, and can judge whether the oil mass is sufficient or not; the oil quantity sensor is in communication connection with the data processing device, and when the oil quantity sensor transmits an oil quantity shortage signal, the data processing device can receive the oil quantity shortage signal; the remote control device is in communication connection with the data processing device; the remote control device is in communication connection with the remote monitoring server; the elevator oil tank oil mass remote monitoring system also comprises a noise measuring device for measuring the noise of the elevator and a vibration mass measuring device for measuring the vibration frequency of the elevator; the noise measuring device and the vibration quantity measuring device are respectively in communication connection with the data processing device;
the control method of the elevator oil tank oil mass remote monitoring system comprises the following steps: the oil mass sensor senses the oil mass of an oil tank of the oil feeder in real time, and when the sensed oil mass is smaller than a set value, the oil mass sensor sends an oil mass shortage signal to the data processing device;
when the data processing device receives the oil quantity shortage signal, alarm information of oil quantity shortage is transmitted to the remote control device;
the remote control device transmits the alarm information of the position identification and insufficient oil quantity of the oil tank of the elevator oil filler to a remote monitoring server;
when the remote monitoring server receives the alarm information of insufficient oil quantity, a remote check command is sent to the remote control device;
the remote control device receives the remote inspection command and sends a real-time noise and vibration data detection instruction to the data processing device;
the data processing device is communicated with the noise measuring device and the vibration measuring device respectively to obtain real-time noise and vibration detection data, and the data processing device sends the real-time noise and vibration detection data to the remote monitoring server through the remote control device;
and the remote monitoring server diagnoses the currently received real-time noise and vibration quantity detection data, judges the severity of insufficient oil quantity and processes the severity.
2. The elevator oil tank capacity remote monitoring system of claim 1, further comprising an elevator control cabinet for controlling elevator operation and a remote monitoring client for performing remote monitoring; the elevator control cabinet is in communication connection with the remote control device, and the remote monitoring server receives elevator running information in the elevator control cabinet through the remote control device; the remote monitoring client is in communication connection with the remote monitoring server, and the remote monitoring client can share the database resources of the remote monitoring server.
3. The elevator oil tank oil quantity remote monitoring system according to any one of claims 1-2, wherein the oil quantity sensor is a floating ball type liquid level switch; when the oil quantity sensor detects that the oil quantity is smaller than the preset oil quantity minimum value, an oil quantity shortage signal can be sent to the data processing device.
4. The control method of the elevator oil tank oil quantity remote monitoring system according to claim 1, wherein the step of diagnosing the currently received real-time noise and vibration quantity detection data by the remote monitoring server, judging the severity of the oil quantity insufficiency and processing the severity of the oil quantity insufficiency comprises the steps of:
the remote monitoring server inquires a historical noise and vibration database of the elevator marked as an insufficient oil state at present;
the remote monitoring server respectively compares the real-time noise and vibration quantity detection data with the average values in the historical noise and vibration quantity database;
if the deviation degree of the real-time noise and vibration quantity detection data and the average value of the noise and vibration quantity in the historical database conforms to the set range, the remote monitoring server defines the oil quantity shortage degree as a light level and stores the real-time noise and vibration quantity detection data to the database;
if the deviation degree of the real-time noise and vibration quantity detection data and the average value of the noise and vibration quantity in the historical database exceeds the preset range, the remote monitoring server defines the fuel quantity shortage degree as serious, immediately sends out a fuel quantity serious shortage warning to a manager and/or maintenance personnel, and pushes the information of the fuel tank with the fuel quantity shortage.
5. The method for controlling the remote monitoring system for the oil quantity in the oil tank of the elevator as claimed in claim 4, further comprising:
the remote monitoring server receives real-time elevator operation information transmitted by the elevator control cabinet through the remote control device and executes fault diagnosis;
the remote monitoring server receives real-time insufficient oil quantity alarm information, real-time noise detection data and real-time vibration quantity detection data through a remote control device;
the remote monitoring server logs real-time elevator operation information, fault diagnosis results, real-time insufficient oil alarm information, real-time noise detection data and real-time vibration detection data into a database in sequence according to time sequence.
6. The method for controlling an elevator fuel tank quantity remote monitoring system according to claim 5, further comprising:
the remote monitoring server updates the fault diagnosis result of the real-time elevator operation information and/or the insufficient oil quantity alarm information and/or the real-time noise detection data and/or the real-time vibration quantity detection data to a remote monitoring client interface;
the remote monitoring client can execute the sending of a remote control command or a remote inspection command according to the control of an operator;
after the remote monitoring client executes the sending of the remote control command or the remote inspection command, the remote monitoring server sends the remote control command or the remote inspection command to the elevator control cabinet and/or the data processing device through the remote control device and receives the execution result of the remote control command or the remote inspection command;
and the remote monitoring server logs the execution result of the remote control command or the remote check command in the database and updates the remote monitoring client.
7. The control method of the elevator oil tank oil quantity remote monitoring system according to any one of claims 5 to 6, characterized by further comprising the following steps:
the remote monitoring server sends a remote check command to the remote control device according to the date, time and times logged in the database;
the remote control device receives the remote inspection command and requires the elevator control cabinet and/or the data processing device to feed back the remote inspection result;
the remote control device transmits the remote inspection result to the remote monitoring server;
and the remote monitoring server logs the received remote inspection result in the database.
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| CN112460461A (en) * | 2020-11-25 | 2021-03-09 | 广州机械科学研究院有限公司 | Intelligent early warning and troubleshooting system for abnormal faults of mechanical equipment lubricating system |
| CN112145946B (en) * | 2020-11-25 | 2021-03-30 | 江苏嘉轩智能工业科技股份有限公司 | Automatic grease filling system and method for roller |
| CN112524469A (en) * | 2020-11-30 | 2021-03-19 | 重庆斯铂电气自动化设备有限公司 | Intelligent oil filling kettle |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444139A (en) * | 1977-09-14 | 1979-04-07 | Yamaha Motor Co Ltd | Decrease warning device for engine oil amount |
| CN87208518U (en) * | 1987-05-29 | 1988-02-17 | 合肥工业大学 | Automatic oiler for track (for lift ect. ) |
| CN2580414Y (en) * | 2002-12-03 | 2003-10-15 | 刘建 | Fuel level display alarm for railway generator car |
| JP2010037052A (en) * | 2008-08-05 | 2010-02-18 | Toshiba Elevator Co Ltd | Rope oil feeding device of elevator |
| JP2010241541A (en) * | 2009-04-03 | 2010-10-28 | Mitsubishi Electric Building Techno Service Co Ltd | Elevator inspection device and method of repairing the same |
| CN102491140A (en) * | 2011-12-27 | 2012-06-13 | 阳西县电梯配件有限公司 | Characteristic-signal-based elevator safety checking device and elevator safety checking method |
| CN104470845A (en) * | 2012-07-02 | 2015-03-25 | 通力股份公司 | Method and apparatus for monitoring the lubricant content of elevator ropes |
| CN204254233U (en) * | 2014-12-05 | 2015-04-08 | 山东公信安全科技有限公司 | A kind of lift flow of lubrication supervisory device |
| CN104583664A (en) * | 2012-08-22 | 2015-04-29 | 通用电气公司 | Wireless system and method for measuring an operative condition of a machine |
| CN104843560A (en) * | 2015-05-26 | 2015-08-19 | 张巍 | Automatic oiling machine of electric construction elevator |
| CN104891290A (en) * | 2015-04-29 | 2015-09-09 | 中联重科股份有限公司 | Reminding message transmitting system, method and device and construction hoist |
| CN106966258A (en) * | 2017-05-24 | 2017-07-21 | 住友富士电梯有限公司 | A kind of elevator maintenance method |
| CN107973206A (en) * | 2017-12-29 | 2018-05-01 | 通力电梯有限公司 | Escalator lubricating status monitors system and the sound collection means for it |
| CN108275523A (en) * | 2017-12-12 | 2018-07-13 | 无锡创联科技有限公司 | It is a kind of it is vertical ladder prevent and safety monitoring system |
| CN109205435A (en) * | 2018-07-04 | 2019-01-15 | 广州广日电梯工程有限公司 | A kind of cage guide refueling device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5127057B2 (en) * | 2008-10-06 | 2013-01-23 | 三菱電機ビルテクノサービス株式会社 | Elevator car guide rail oiling device |
-
2019
- 2019-04-01 CN CN201910255715.4A patent/CN109973804B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5444139A (en) * | 1977-09-14 | 1979-04-07 | Yamaha Motor Co Ltd | Decrease warning device for engine oil amount |
| CN87208518U (en) * | 1987-05-29 | 1988-02-17 | 合肥工业大学 | Automatic oiler for track (for lift ect. ) |
| CN2580414Y (en) * | 2002-12-03 | 2003-10-15 | 刘建 | Fuel level display alarm for railway generator car |
| JP2010037052A (en) * | 2008-08-05 | 2010-02-18 | Toshiba Elevator Co Ltd | Rope oil feeding device of elevator |
| JP2010241541A (en) * | 2009-04-03 | 2010-10-28 | Mitsubishi Electric Building Techno Service Co Ltd | Elevator inspection device and method of repairing the same |
| CN102491140A (en) * | 2011-12-27 | 2012-06-13 | 阳西县电梯配件有限公司 | Characteristic-signal-based elevator safety checking device and elevator safety checking method |
| CN104470845A (en) * | 2012-07-02 | 2015-03-25 | 通力股份公司 | Method and apparatus for monitoring the lubricant content of elevator ropes |
| CN104583664A (en) * | 2012-08-22 | 2015-04-29 | 通用电气公司 | Wireless system and method for measuring an operative condition of a machine |
| CN204254233U (en) * | 2014-12-05 | 2015-04-08 | 山东公信安全科技有限公司 | A kind of lift flow of lubrication supervisory device |
| CN104891290A (en) * | 2015-04-29 | 2015-09-09 | 中联重科股份有限公司 | Reminding message transmitting system, method and device and construction hoist |
| CN104843560A (en) * | 2015-05-26 | 2015-08-19 | 张巍 | Automatic oiling machine of electric construction elevator |
| CN106966258A (en) * | 2017-05-24 | 2017-07-21 | 住友富士电梯有限公司 | A kind of elevator maintenance method |
| CN108275523A (en) * | 2017-12-12 | 2018-07-13 | 无锡创联科技有限公司 | It is a kind of it is vertical ladder prevent and safety monitoring system |
| CN107973206A (en) * | 2017-12-29 | 2018-05-01 | 通力电梯有限公司 | Escalator lubricating status monitors system and the sound collection means for it |
| CN109205435A (en) * | 2018-07-04 | 2019-01-15 | 广州广日电梯工程有限公司 | A kind of cage guide refueling device |
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|---|---|
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