CN112093605B - Elevator car running state recognition system and recognition method thereof - Google Patents
Elevator car running state recognition system and recognition method thereof Download PDFInfo
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- CN112093605B CN112093605B CN202011171529.1A CN202011171529A CN112093605B CN 112093605 B CN112093605 B CN 112093605B CN 202011171529 A CN202011171529 A CN 202011171529A CN 112093605 B CN112093605 B CN 112093605B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- 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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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention relates to an elevator car running state recognition system and a recognition method thereof, wherein the elevator car running state recognition system comprises: the elevator car (J) running data acquisition device comprises a hoisting rope sensor, a data acquisition module and a data processing module, wherein the hoisting rope sensor is used for acquiring the running data of the car (J) by monitoring the running state of a hoisting rope of the elevator, and the running data of the car (J) comprises the running stroke and/or the running speed of the car (J); the hoisting rope sensor comprises a fixed pulley and a rotating shaft; the running state identification control unit is connected with the hoisting rope sensor to receive, process and analyze the car (J) running data collected by the hoisting rope sensor; the running state recognition control unit comprises a central main control module used for monitoring, analyzing and operating the running data of the car (J), a storage used for storing related data and a network communication module used for realizing data transmission. The invention can effectively collect the running state information of the elevator car (J) and identify the related running state, and can be universally used for elevators of different models.
Description
Technical Field
The invention relates to an elevator auxiliary device, in particular to an elevator car running state identification system and an identification method thereof.
Background
In the running process of an elevator, real-time monitoring on the running state of the elevator is one of important technical means for ensuring safe running of the elevator, which needs to obtain running information, running direction, position information, running speed and the like of an elevator car in time and then send the information to a control center (the control center comprises a matched control center or a remote centralized control center) for centralized control management and monitoring; particularly, in areas where strict requirements are imposed on safe operation of the elevator, monitoring and management of the operation state of the elevator are required, so that operation information of the elevator needs to be timely and reliably acquired.
In the existing elevator, common floor signal display and direction signal display comprise seven-segment code display, dot matrix display, liquid crystal display and the like, and information is controlled by RS485 or CAN BUS in an elevator control system and is displayed on corresponding floors and cars; when the running state information of the car is obtained, various technical means are usually adopted to be connected with an elevator controller, and the running state information of the car is read and collected; however, since there are elevators of different types and kinds in the market and the communication protocols used by different elevators are often different, the communication protocol, elevator parameters, etc. of the elevator of the relevant type must be known when the elevator operation state information is read from the elevator controllers of the elevators of different types, which brings difficulty to the reading of the information and causes that users cannot smoothly provide the standard communication data related to the elevator operation state information for the elevator remote monitoring management; in addition, directly reading the elevator running state information from the elevator controller means that reliable elevator running state information cannot be continuously provided when the elevator controller fails depending on the state of the elevator controller. Therefore, no simple and reliable device capable of collecting and identifying the running state information of elevators of different models exists in the current market.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an elevator car running state identification system and an identification method thereof.
The purpose of the invention is realized as follows:
an elevator car running state recognition system which characterized in that: the method comprises the following steps:
the elevator system comprises a hoisting rope sensor, a controller and a data processing module, wherein the hoisting rope sensor is used for monitoring the running state of an elevator hoisting rope so as to acquire car running data, and the car running data comprises the running stroke and/or the running speed of a car; the hoisting rope sensor comprises a fixed pulley and a rotating shaft; the fixed pulley rolls on the elevator hoisting rope around the rotating shaft, the rolling stroke of the fixed pulley is equal to or close to the running stroke of the elevator car, and the rolling speed of the fixed pulley is equal to or close to the running speed of the elevator car; the rotating shaft is provided with a rolling monitoring unit which at least collects the rolling stroke and the rolling speed of the fixed pulley;
the running state identification control unit is connected with the towline sensor so as to receive the car running data collected by the towline sensor and perform processing analysis; the running state recognition control unit comprises a central main control module for monitoring, analyzing and operating the running data of the car, a storage for storing related data and a network communication module for realizing data transmission; the rolling monitoring unit is connected with the central main control module to transmit the car operation data to the central main control module; the central main control module is respectively connected with the network communication module and the storage; and the central main control module is in data transmission with an external upper computer through the network communication module.
The central main control module is a programmable logic controller; the memory is at least used for storing the basic parameters of the elevator and the detection analysis operation results corresponding to the car operation data.
The external upper computer comprises a building control center and a remote monitoring center.
An elevator car running state identification method is characterized in that: the method comprises the following steps:
the method comprises the following steps that firstly, a central main control module is initialized, and the lower end station position h of a car in a normal running state is recordedminAnd/or the height of a floor Δ h and/or the number of floors CallAnd/or upper end position h of the carmaxAnd/or an acceleration curve value a1 of normal running of the car and/or a deceleration curve value a2 of normal running of the car and/or a rated speed value v1 of normal running of the car;
secondly, the elevator is put into operation, and the position of the elevator car is identified according to the rolling stroke of the fixed pulley; and/or, whether the elevator car is in a normal running state is identified according to the rolling acceleration and/or the rolling deceleration and/or the rolling uniform speed of the fixed pulley.
The lower end station position hminFor the position of the lowest floor in the range of the car, the running state recognition control unit records the position h of the car at the lower end stationminThe hour position value is 0;
the upper station position hmaxFor the position of the highest floor in the range of the car, the running state recognition control unit records that the car is at the upper end station position hmaxThe hour position value is the highest;
initializing the floor height delta h: the elevator car is controlled to stop at each floor under the normal running state, the floor running state identification control unit records the corresponding rolling stroke of the fixed pulley every time the elevator car stops, corresponding floor height delta h data is obtained in a superposition mode, and meanwhile, the corresponding floor number is recorded;
the floor number CallInitialization of (2): controlling the car from the lower terminal position h in a manner of stopping at each floor in a normal running stateminUp to the upper station position hmaxThe running state identification control unit records the stopping times of the car as the number of floors Call；
Initialization of the acceleration curve value a 1: the car is controlled to stop after more than one floor is separated during running under the normal running state, and the running state identification control unit records the rolling acceleration of the fixed pulley as the acceleration curve value a1 of the car in the process;
initialization of the deceleration curve value a 2: the elevator car is controlled to stop after more than one floor is separated during the operation under the normal operation state, and the operation state identification control unit records the rolling deceleration of the fixed pulley in the process as the deceleration curve value a2 of the elevator car;
initialization of the nominal speed value v 1: and under the normal running state, the cage is controlled to stop after more than one floor is separated, and the running state identification control unit records the rolling uniform speed of the fixed pulley in the process as the rated speed value v1 of the cage.
Recognizing the position of the car: the number of floors where the lift car is located before running is marked, the lift car stops running normally, the fixed pulley rolls along with a hoisting rope of the elevator, the running state identification control unit records the rolling stroke of the fixed pulley from the beginning of rolling to the stopping of rolling as the running stroke of the lift car, and the running stroke of the lift car is compared with the corresponding floor height delta h for calculation, so that the number of floors where the lift car is located after running is identified.
Recognizing the position of the car: marking the number of floors where the lift car is located before running, stopping running of the lift car abnormally, enabling the fixed pulley to roll along with a hoisting rope of the lift car, recording the rolling stroke of the fixed pulley from starting rolling to stopping rolling as the running stroke of the lift car by the running state identification control unit, obtaining a height margin m by comparing and calculating the running stroke with the corresponding floor height delta h, meanwhile, taking 1/2 of the floor height delta h as a door opening reference value L1, and judging when m is more than L1The car is abnormally stopped in a non-door opening area, and when m is more than or equal to L2 and less than or equal to L1, the car is judged to be abnormally stopped in a door opening area; when the position of the cage is lower than the lower end station position hminWhen the car is in the upper end station position h, the squatting bottom of the car is judgedmaxAnd judging that the lift car rushes to the top.
Whether the car is in a normal running state is identified:
the rolling speed of the fixed pulley is increased to the set rolling uniform speed from 0 through the set acceleration time t1, the fixed pulley keeps rolling at the rolling uniform speed, then the rolling speed of the fixed pulley is reduced to 0 from the rolling uniform speed through the set deceleration time t2, and the normal running state of the elevator car is judged;
if the time required for the rolling speed of the fixed sheave to increase from 0 to the set rolling uniform speed deviates from the set acceleration time t1 and/or the time required for the rolling speed of the fixed sheave to decrease from the set rolling uniform speed to 0 deviates from the set deceleration time t2, it is determined that the car is operating in an abnormal state.
Whether the car is in a normal running state is identified:
when the rolling speed of the fixed pulley exceeds 5% -15% of the uniform rolling speed, the car is judged to run at an overspeed;
when the rolling acceleration of the fixed pulley deviates 5% -15% from the acceleration curve value a1 and/or the rolling deceleration deviates 5% -15% from the deceleration curve value a2, the car is judged to slide.
In the first step, the central main control module initializes the data to be recorded and also comprises a maintenance running speed v2 set by the running of the car in a maintenance running state and/or an emergency electric running state; and step two, when the rolling speed of the fixed pulley is equal to or close to the maintenance running speed v2, judging that the elevator is in a maintenance running state or an emergency electric running state.
The invention has the following beneficial effects:
the elevator car running state recognition system drives the fixed pulley in the towline sensor to rotate through the elevator towline, and the running state recognition control unit is matched with the functions of processing and analyzing the car running data and the like, so that the running state information of the elevator car is effectively obtained; the elevator car running state recognition system has the advantages that the collection mode of the running state information is irrelevant to the communication protocol of the elevator and is not electrically connected with the elevator control system, so that the system collects the running state information of the elevator car conveniently and quickly, is more accurate and reliable, does not need to overcome special technical limit, and has the characteristics of low installation/manufacturing cost, reliable performance and the like; the car running state information is connected with an external upper computer through the network communication module, so that the car running state can be monitored in real time, and the use safety of the elevator is effectively ensured.
Drawings
Fig. 1 is a schematic structural view of an elevator car operating state recognition system according to an embodiment of the present invention.
Fig. 2 is a block diagram of an elevator car operating state recognition system in an embodiment of the present invention.
Fig. 3 is a schematic view of each operating state of the car in an embodiment of the present invention.
Fig. 4 is a v-t plot of a normal upward car condition in an embodiment of the present invention.
Fig. 5 is a v-t plot of an abnormal upward state of the car in an embodiment of the present invention.
Fig. 6 is a flowchart of floor parameter initialization according to an embodiment of the invention.
Fig. 7 is a flow chart of the initialization of the car travel speed parameter in one embodiment of the present invention.
Fig. 8 is a flow chart of car operating state identification in an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1 to 8, the elevator car operation state recognition system includes:
the elevator system comprises a hoisting rope sensor, a controller and a controller, wherein the hoisting rope sensor is used for monitoring the running state of an elevator hoisting rope 1 to further acquire the running data of a car J, and the running data of the car J comprises the running stroke, the running speed and the like of the car J; the hoisting rope sensor comprises a fixed pulley 2 and a rotating shaft 3; the fixed pulley 2 rolls on the elevator hoisting rope 1 around the rotating shaft 3, the rolling stroke of the fixed pulley 2 is equal to or close to the running stroke of the cage J, and the rolling speed of the fixed pulley 2 is equal to or close to the running speed of the cage J, namely the running stroke and the running speed of the cage J can be effectively detected by monitoring the rolling stroke and the rolling speed of the fixed pulley 2, and the running state of the cage J can be clearly reflected by the fixed pulley 2; a rolling monitoring unit for at least acquiring the rolling stroke and the rolling speed of the fixed pulley 2 is arranged on the rotating shaft 3; a signal output interface is arranged on the rolling monitoring unit so as to output data; referring to fig. 1, an elevator hoist rope 1 is connected to a car J to draw the car J to travel, and in the embodiment, clockwise rotation of a fixed sheave 2 is set as downward movement of the car J, and counterclockwise rotation of the fixed sheave 2 is set as upward movement of the car J;
the running state recognition control unit 4 is connected with the hoisting rope sensor to receive, process and analyze the car J running data collected by the hoisting rope sensor; the running state recognition control unit 4 comprises a central main control module for monitoring, analyzing and operating the running data of the lift car J, a storage device for storing related data and a network communication module for realizing data transmission; the rolling monitoring unit is connected with the central main control module through a signal output interface so as to transmit the cage J running data based on the rolling information of the fixed pulley 2 to the central main control module, so that monitoring, analyzing and calculating are carried out to obtain cage J running state information, floor information and the like; the central main control module is respectively connected with the network communication module and the storage; the central main control module is used for transmitting data with an external upper computer through the network communication module, the central main control module and the network communication module are respectively arranged on the circuit board, and the network communication module can convert information processed by the central main control module into a format conforming to a transmission protocol and then transmit the information.
Furthermore, the central main control module is a programmable logic controller, and the central main control module is connected with the network communication module through a serial communication RS485 interface connector; the network communication module is provided with a network connection port RJ45 and/or a WiFi port; the storage is used at least for storing basic parameters of the elevator (including the position h of the lower end station)minUpper end station position hmaxAcceleration curve value a1, deceleration curve value a2 and rated speed value v 1) and detection analysis operation results corresponding to the operation data of the car J.
Furthermore, the external upper computer comprises a building control center and a remote monitoring center, namely, a user can check the running condition of the elevator and/or control the running of the elevator through the building control center and the remote monitoring center.
The method for identifying the running state of the elevator car comprises the following steps:
the method comprises the following steps that firstly, a central main control module is initialized, and the lower end station position h of a car J under the normal running state is recordedminAnd/or the height of a floor Δ h and/or the number of floors CallAnd/or the upper end stop position h of the car JmaxAnd/or an acceleration curve value a1 of normal running of the car J and/or a deceleration curve value a2 of normal running of the car J and/or a rated speed value v1 of normal running of the car J;
secondly, the elevator is put into operation, and the position of the cage J is identified according to the rolling stroke of the fixed pulley 2; and/or, whether the cage J is in a normal running state is identified according to the rolling acceleration and/or rolling deceleration and/or rolling uniform speed of the fixed pulley 2.
Further, the initialization process of the central main control module in this embodiment is as the following series of actions to improve the efficiency:
1. confirming lower end station location hmin: lower end station position hminFor the position of the lowest floor within the operable range of the cage J, the operating state recognition control unit 4 registers that the cage J is at the lower end station position hminThe hour position value is 0; specifically, when the car J is controlled to move downwards to the lowest floor, the central main control module monitors that the fixed pulley 2 rotates clockwise all the time and then changes into anticlockwise rotation (the car J moves downwards to the lowest floor under the action of buffering, so that the car J can move upwards for a short distance, and the fixed pulley 2 can change into the anticlockwise rotation under the action of the elevator hoisting rope 1), the situation that the car J is located at the lower end station position h is judgedmin(ii) a Lower end station position hminMay be above ground or underground;
2. completing the lower end station position hminAfter the record of (2) is confirmed, the floor is carried outInitialization of the height Δ h: the elevator car J is controlled to stop at each floor once in a normal running state, the floor running state identification control unit 4 records the corresponding rolling travel of the fixed pulley 2 at each stop, obtains the floor height delta h data in a superposition mode, and records the corresponding floor numbers (the floor numbers are the first floor, the second floor and the nth floor of the third floor … …); number of floors CallInitialization of (2): car J from lower end station position hminUp to the upper station position hmaxThe running state recognition control unit 4 records the stopping times of the cage J as the floor number Call；
3. After the recording of the floor parameters is finished, the position h of the upper end station is confirmedmax: upper end station position hmaxFor the highest floor position in the operable range of the car J, the operation state recognition control unit 4 records that the car J is at the upper end station position hmaxThe hour position value is the highest; specifically, when the cage J moves upwards to the highest floor and the fixed pulley 2 rotates anticlockwise and then rotates clockwise (the cage J moves downwards for a short distance due to the buffering effect when moving upwards to the highest floor, and the fixed pulley 2 rotates clockwise under the action of the elevator hoisting rope 1), the cage J is determined to be at the upper end station position hmaxSimultaneously recording the highest height value of the running car J;
4. completing the upper station position hmaxAfter the recording of (2) is confirmed, the acceleration curve value a1, the deceleration curve value a2 and the rated speed value v1 are initialized: controlling the cage J from the upper end station position h under the normal running statemax(any floor is also possible, here for meeting the upper end station position hmaxSo that the upper end station position h is preferredmax) The traveling state recognition control unit 4 records the rolling acceleration of the fixed pulley 2 in the process as an acceleration curve value a1 of the car J, the rolling deceleration as a deceleration curve value a2 of the car J, and the rolling uniform speed as a rated speed value v1 of the car J.
Further, the following are identified where the car J is located:
under the normal state: marking the number of floors where the car J is located before running, wherein the car J is normalStopping running, wherein the fixed pulley 2 rolls along with a hoisting rope of the elevator, the running state identification control unit 4 records the rolling stroke of the fixed pulley 2 from the beginning to the stopping of rolling as the running stroke of the lift car J, and the running stroke of the lift car (J) is compared with the corresponding floor height delta h in the storage for calculation, so that the floor number where the lift car J runs is identified; when the position value of the cage J is 0, the cage J is judged to be positioned at the lower end station position hmin(ii) a When the position of the car J is the highest height value, the car J is judged to be positioned at the upper end station position hmax(ii) a Therefore, the numerical value of the lifting distance of each floor, the corresponding floor number and the highest floor number are effectively judged and monitored;
in an abnormal state: marking the number of floors where the car J is located before running, stopping running if the car J is abnormal, enabling the fixed pulley 2 to roll along with a hoisting rope of the elevator, recording the rolling stroke of the fixed pulley 2 from starting rolling to stopping rolling as the running stroke of the car J by the running state recognition control unit 4, obtaining a height margin m by comparing and calculating according to the running stroke and the corresponding floor height delta h, meanwhile, taking 1/2 of the floor height delta h as a door opening reference value L1 (the value range of L1 is 100mm-300mm, preferably 200 mm), judging that the car J stops in a non-door opening area if m is larger than L1, and judging that the car J stops in a door opening area if L2 (the value range of L2 is 10mm-30mm, preferably 20 mm) is larger than or smaller than or equal to M and smaller than or equal to L1); when the position of the cage J is lower than the position h of the lower end stationminWhen the car J squats, the car J is judged to be higher than the upper end station position hmaxAnd judging that the car J impacts the top.
Further, it is identified whether the car J is in a normal running state as follows:
in the running process of the cage J, the rolling speed of the fixed pulley 2 is increased to the rolling uniform speed (namely the rated speed value v 1) from 0 (in a static state) through the set acceleration time t1, the fixed pulley 2 keeps rolling at the rolling uniform speed (at the moment, the cage J runs at the rated speed value v 1), then the rolling speed of the fixed pulley 2 is reduced to 0 (stops rotating) from the rolling uniform speed through the set deceleration time t2, and the normal running state of the cage J is judged; the car J finishes the following work in proper order under the normal operating condition: starting operation, accelerating, uniformly operating, decelerating and stopping operation;
during the operation of the cage J, the time required for the rolling speed of the fixed pulley 2 to be increased from 0 to the rolling uniform speed deviates from the set acceleration time t1 (including being longer or shorter than the acceleration time t 1); and/or the time required for the rolling speed of the fixed pulley 2 to be reduced from the rolling uniform speed to 0 deviates from the set deceleration time t2 (including being longer or shorter than the deceleration time t 2), the cage J is judged to be operated in an abnormal state;
when the rolling speed of the fixed pulley 2 exceeds the rolling uniform speed by 10 percent, judging that the cage J runs at an overspeed;
when the rolling acceleration of the fixed sheave 2 deviates (is greater or less than) 5% from the acceleration degree curve value a1 and the rolling deceleration of the fixed sheave 2 deviates (is greater or less than) 5% from the deceleration degree curve value a2, it is determined that the car J is slipping.
Further, in the first step, the data initially recorded by the central main control module further includes a maintenance running speed v2 set by the running of the car J in the overhaul running state and/or the emergency electric running state; and step II, when the rolling speed of the fixed pulley 2 is equal to or close to the maintenance running speed v2, judging that the elevator is in a maintenance running state or an emergency electric running state. Specifically, in a normal operation state, the elevator is in a maintenance operation state or an emergency electric operation state, then the car J is controlled to move upwards or downwards for a certain distance (generally, the distance between more than one floor), and the central main control module records a speed value in the process and defines the speed value as a maintenance operation speed v 2.
The specific execution actions are as follows:
recording basic parameters of the elevator: number of floors Call… … such as the number n of floors (n =1, 2, 3, 4 … …), the rated speed value v1, the door opening reference value (namely 1/2 of the length of the magnetic isolation plate and the height delta h of the floors) L1, the rope winding ratio p of the hoisting rope of the elevator and the like;
the central main control module starts initialization:
with reference to figure 6 of the drawings,
controlling the cage J to move downwards to the lower end station position hmin(lowest floor), h1= 0; confirming the car J is stopped at the lower end station position hminThen, the car J is controlled to go upwardsStop at each floor to record floor height Δ h: wherein the content of the first and second substances,
the floor height h1=0 of the first floor,
the floor height h2 of the second floor = the floor height h1 of the first floor + the rolling travel k1 of the fixed pulley 2 between the first floor and the second floor,
the floor height h3 of the third floor = the floor height h2 of the second floor + the rolling stroke k2 of the fixed pulley 2 between the second floor and the third floor,
the floor height h4 of the fourth floor = the floor height h3 of the third floor + the rolling stroke k3 of the fixed pulley 2 between the third floor and the fourth floor,
the floor height h5 of the fifth floor = the floor height h4 of the fourth floor + the rolling travel k4 of the fixed pulley 2 between the fourth floor and the fifth floor,
……
the floor height hn of the nth floor = the floor height h (n-1) of the (n-1) th floor + the rolling stroke k (n-1) of the fixed pulley 2 from the (n-1) th floor to the nth floor;
the door opening reference value L1= k1/2 of the first floor;
the door opening reference value L1= k2/2 of the second floor;
the door opening reference value L1= k3/2 of the third floor;
……
the door opening reference value L1= kn/2 of the nth floor;
the following description will be given by taking the equal height of each floor in the building where the elevator is located as an example:
the floor height h1=0 of the first floor,
the floor height h2 of the second floor = the floor height h1 of the first floor + the rolling travel k1= k' of the fixed pulley 2 between the first floor and the second floor,
the floor height h3 of the third floor = the floor height h2 of the second floor + the rolling travel k2 of the fixed pulley 2 between the first floor and the second floor =2 · k',
the floor height h4 of the fourth floor = the floor height h3 of the third floor + the rolling stroke k3 of the fixed pulley 2 from the second floor to the third floor =3 · k',
the floor height h5 of the fifth floor = the floor height h4 of the fourth floor + the rolling travel k4 of the fixed pulley 2 from the third floor to the fourth floor =4 · k',
……
the floor height hn of the nth floor = (n-1) × the rolling stroke k' of the fixed pulley 2 between the first floor and the second floor;
the door opening reference value L1= k'/2 for each floor.
The height residual value m = the actual height h' -of the car J, namely the corresponding floor height Delta h, and the height residual value m is compared with a corresponding door opening reference value L1 and calculated to judge whether the door can be opened at the position of the car J; when the height residual value m is larger than the door opening reference value L1 (200 mm), the car J is judged to be abnormally stopped in a non-door opening area, so that the door cannot be opened; and when the L2 (20 mm) is less than or equal to the height residual value m and less than or equal to the door opening reference value L1 (200 mm), judging that the car J is abnormally stopped in the door opening area, but opening the door.
With reference to figure 7 of the drawings,
and (3) downlink state: controlling the car J from the upper end station position hmax(can also be any floor) continuously descends three floors or more than three floors so as to ensure that the running speed of the car J reaches the rated speed value v 1; recording the acceleration time t1 'of the descending speed of the cage J which is increased from 0 to a rated speed value v1 (at the moment, the rolling speed of the fixed pulley 2 is the rolling uniform speed) and the distance d 1' of the acceleration section of the cage J so as to complete the self-learning of the descending acceleration section; recording the descending constant speed of the car J as a rated speed value v1 to finish self-learning of a descending rated speed section; recording the deceleration time t2 'of the car J from the rated speed value v1 to 0 and the deceleration section distance d 2' of the car J so as to complete self-learning of the descending deceleration section;
an uplink state: controlling the car J from the lower end station position hmin(can also be any floor) continuously goes up three floors or more than three floors to ensure that the running speed of the car J reaches the rated speed value v 1; recording the acceleration time t1 'of the ascending speed of the cage J which is increased from 0 to a rated speed value v1 (at the moment, the rolling speed of the fixed pulley 2 is the rolling uniform speed) and the acceleration section distance d 1' of the cage J so as to complete the self-learning of the ascending acceleration section; recording the ascending constant speed of the lift car J as a rated speed value v1 to finish the self-learning of the ascending rated speed section; recording the deceleration time t 2' of the car J from the rated speed value v1 to 0 and the deceleration section distance d of the car J2' to complete self-learning of the ascending deceleration section;
maintenance state or emergency state: controlling the lift car J to ascend or descend in a maintenance running state or an emergency electric running state; and recording the constant speed of the ascending/descending of the car J as the maintenance running speed v2 so as to complete the self-learning of the ascending/descending maintenance running speed.
The initialization is ended.
With reference to figure 8 of the drawings,
in the daily use of the elevator, the identification of the running state of the car J:
the running state recognition control unit 4 accumulates the moving distance of the lift car J in real time according to the rolling stroke of the fixed pulley 2 to calculate the floor height delta h and the floor number CallHighest position value hmaxEtc.; a dynamic distance register for recording the moving distance of the car J is arranged on the running state identification control unit 4;
the running state recognition control unit 4 records the running speed of the cage J in real time according to the rolling speed of the fixed pulley 2 so as to calculate an acceleration curve value a1, a deceleration curve value a2, a rated speed value v1 and the like; the running state identification control unit 4 is provided with a dynamic speed register for recording the running speed of the cage J;
the running state recognition control unit 4 records the running time of the cage J in real time according to the rolling time of the fixed pulley 2 to calculate the acceleration time t1 'and/or t1 ", the deceleration time t 2' and/or t 2" and the like; the operation state recognition control unit 4 is provided with a dynamic time register for recording the operation time of the car J.
When the running speed of the car J exceeds 10% of the rated speed value v1, judging that the elevator has an overspeed fault;
when the car J stops in a non-door opening area, judging that the elevator has an abnormal elevator stopping fault;
when the stopping position of the cage J is higher than the upper end station position hmaxJudging that the elevator has a top-rushing fault;
when the stop position of the car J is lower than the lower end station position hminAnd judging that the elevator has a squatting fault.
The foregoing is a preferred embodiment of the present invention, and the basic principles, principal features and advantages of the invention are shown and described. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and the invention is intended to be protected by the following claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An identification method of an elevator car running state identification system comprises the following steps:
the elevator car (J) running data acquisition device comprises a hoisting rope sensor, a data acquisition module and a data processing module, wherein the hoisting rope sensor is used for acquiring the running data of a car (J) by monitoring the running state of an elevator hoisting rope (1), and the running data of the car (J) comprises the running stroke and/or the running speed of the car (J); the hoisting rope sensor comprises a fixed pulley (2) and a rotating shaft (3); the fixed pulley (2) rolls on the elevator hoisting rope (1) around the rotating shaft (3), the rolling stroke of the fixed pulley (2) is equal to or close to the running stroke of the elevator car (J), and the rolling speed of the fixed pulley (2) is equal to or close to the running speed of the elevator car (J); a rolling monitoring unit for at least acquiring the rolling stroke and the rolling speed of the fixed pulley (2) is arranged on the rotating shaft (3);
the running state recognition control unit (4) is connected with the hoisting rope sensor and used for receiving the car (J) running data collected by the hoisting rope sensor and carrying out processing and analysis; the running state recognition control unit (4) comprises a central main control module for monitoring, analyzing and operating running data of the lift car (J), a storage device for storing related data and a network communication module for realizing data transmission; the rolling monitoring unit is connected with the central main control module to transmit the operation data of the car (J) to the central main control module; the central main control module is respectively connected with the network communication module and the storage; the central main control module is in data transmission with an external upper computer through a network communication module;
the identification method of the elevator car running state identification system is characterized in that: the method comprises the following steps:
central main control module initializationRecording the lower end station position h of the lift car (J) in the normal running stateminAnd/or the height of a floor Δ h and/or the number of floors CallAnd/or the upper end position h of the car (J)maxAnd/or an acceleration curve value a1 of normal operation of the car (J) and/or a deceleration curve value a2 of normal operation of the car (J) and/or a rated speed value v1 of normal operation of the car (J);
secondly, the elevator is put into operation, and the position of the lift car (J) is identified according to the rolling stroke of the fixed pulley (2); and/or, whether the cage (J) is in a normal running state is identified according to the rolling acceleration and/or the rolling deceleration and/or the rolling uniform speed of the fixed pulley (2).
2. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: the central main control module is a programmable logic controller; the memory is at least used for storing basic parameters of the elevator and detection analysis operation results corresponding to the operation data of the car (J).
3. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: the external upper computer comprises a building control center and a remote monitoring center.
4. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: the lower end station position hminFor the position of the lowest floor within the operable range of the car (J), the operating state recognition control unit (4) records that the car (J) is at the lower end station position hminThe hour position value is 0;
the upper station position hmaxFor the position of the highest floor within the operable range of the car (J), the operating state recognition control unit (4) records that the car (J) is at the upper end station position hmaxThe hour position value is the highest;
initializing the floor height delta h: the elevator car (J) is controlled to stop at each floor under the normal running state, the floor running state identification control unit (4) records the corresponding rolling travel of the fixed pulley (2) every time the elevator car stops, corresponding floor height delta h data is obtained in a superposition mode, and meanwhile, the corresponding floor number is recorded;
the floor number CallInitialization of (2): controlling the car (J) from the lower terminal position h in a manner of stopping at each floor in the normal operation stateminUp to the upper station position hmaxThe running state recognition control unit (4) records the stopping times of the lift car (J) as the floor number Call；
Initialization of the acceleration curve value a 1: the elevator car (J) is controlled to stop after being separated by more than one floor in the normal running state, and the running state identification control unit (4) records the rolling acceleration of the fixed pulley (2) in the process as an acceleration curve value a1 of the elevator car (J);
initialization of the deceleration curve value a 2: the elevator car (J) is controlled to stop after being separated by more than one floor in the normal running state, and the running state identification control unit (4) records the rolling deceleration of the fixed pulley (2) in the process as the deceleration curve value a2 of the elevator car (J);
initialization of the nominal speed value v 1: and under the normal running state, the car (J) is controlled to run and stop after more than one floor, and the running state identification control unit (4) records the rolling uniform speed of the fixed pulley (2) in the process as the rated speed value v1 of the car (J).
5. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: recognizing the position of the car (J): the number of floors where the lift car (J) is located before running is marked, the lift car (J) stops running normally, the fixed pulley (2) stops rolling along with the hoisting rope of the elevator, the running state identification control unit (4) records the rolling stroke of the fixed pulley (2) from the beginning of rolling to the stopping of rolling as the running stroke of the lift car (J), and the running stroke of the lift car (J) is compared with the corresponding floor height delta h for calculation, so that the number of floors where the lift car (J) is located after running is identified.
6. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: recognizing the position of the car (J): marking the floor on which the car (J) was located before operationThe elevator car (J) stops running abnormally, the fixed pulley (2) stops rolling along with an elevator hoisting rope, the running state recognition control unit (4) records the rolling stroke of the fixed pulley (2) from the beginning of rolling to the stopping of rolling as the running stroke of the elevator car (J), the height margin m is obtained through comparison calculation according to the running stroke and the corresponding floor height delta h, meanwhile, the half floor height delta h is used as a door opening reference value L1, when m is larger than L1, the elevator car (J) is judged to stop in a non-door opening area abnormally, when L2 is larger than or equal to m is smaller than or equal to L1, the elevator car (J) is judged to stop in the door opening area abnormally, and when L2 is larger than or equal to 10mm and smaller than or equal to 30 mm; when the position of the lift car (J) is lower than the position h of the lower end stationminWhen the car (J) squats, the car (J) is judged to be higher than the upper end station position hmaxWhen the car (J) is in the top impact state, the car (J) is judged to be in the top impact state.
7. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: identifying whether the car (J) is in a normal running state:
the rolling speed of the fixed pulley (2) is increased to the set rolling uniform speed from 0 through the set acceleration time t1, the fixed pulley (2) keeps rolling at the rolling uniform speed, then the rolling speed of the fixed pulley (2) is reduced to 0 from the rolling uniform speed through the set deceleration time t2, and the normal running state of the lift car (J) is judged;
if the time required for the rolling speed of the fixed pulley (2) to rise from 0 to the set rolling uniform speed deviates from the set acceleration time t1 and/or the time required for the rolling speed of the fixed pulley (2) to fall from the set rolling uniform speed to 0 deviates from the set deceleration time t2, it is determined that the cage (J) is operating in an abnormal state.
8. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: identifying whether the car (J) is in a normal running state:
when the rolling speed of the fixed pulley (2) exceeds 5% -15% of the rolling uniform speed, the cage (J) is judged to run at an overspeed;
when the rolling acceleration of the fixed pulley (2) deviates 5% -15% from the acceleration curve value a1 and/or the rolling deceleration deviates 5% -15% from the deceleration curve value a2, the car (J) is judged to slide.
9. The identification method of an elevator car operating state identification system according to claim 1, characterized in that: in the first step, the central main control module initializes the data to be recorded and also comprises a maintenance running speed v2 set by the running of the car (J) in a maintenance running state and/or an emergency electric running state; and step two, when the rolling speed of the fixed pulley (2) is equal to or close to the maintenance running speed v2, judging that the elevator is in a maintenance running state or an emergency electric running state.
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| US5458216A (en) * | 1992-09-17 | 1995-10-17 | Hitachi, Ltd. | Elevator apparatus |
| CN204689281U (en) * | 2015-05-12 | 2015-10-07 | 广州广日电梯工业有限公司 | For the lift management system that elevator faults is diagnosed in advance |
| CN206872200U (en) * | 2017-05-03 | 2018-01-12 | 重庆顺心科技发展有限公司 | A kind of elevator brake parameter detecting instrument |
| CN207632276U (en) * | 2017-10-31 | 2018-07-20 | 杭州恩信科技有限公司 | A kind of elevator operation real-time speed measuring device |
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2020
- 2020-10-28 CN CN202011171529.1A patent/CN112093605B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5458216A (en) * | 1992-09-17 | 1995-10-17 | Hitachi, Ltd. | Elevator apparatus |
| CN204689281U (en) * | 2015-05-12 | 2015-10-07 | 广州广日电梯工业有限公司 | For the lift management system that elevator faults is diagnosed in advance |
| CN206872200U (en) * | 2017-05-03 | 2018-01-12 | 重庆顺心科技发展有限公司 | A kind of elevator brake parameter detecting instrument |
| CN207632276U (en) * | 2017-10-31 | 2018-07-20 | 杭州恩信科技有限公司 | A kind of elevator operation real-time speed measuring device |
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