CN112723070A - Elevator running speed monitoring system and method - Google Patents
Elevator running speed monitoring system and method Download PDFInfo
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- CN112723070A CN112723070A CN202011543503.5A CN202011543503A CN112723070A CN 112723070 A CN112723070 A CN 112723070A CN 202011543503 A CN202011543503 A CN 202011543503A CN 112723070 A CN112723070 A CN 112723070A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
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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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Abstract
The invention discloses a system and a method for monitoring the running speed of an elevator, wherein the system comprises: the system comprises a main control module, an identification module arranged in the elevator shaft and a brightness detection module arranged in the elevator car. The identification module comprises an optical identification piece, and the light state of the optical identification piece is determined based on the floor where the optical identification piece is located. The light detection module comprises: and the light detection unit is used for detecting the light state of the light identification piece and generating a detection signal. The main control module is used for: analyzing the detection signal and determining the floor number corresponding to the optical identification piece; determining the starting floor number and the current floor number corresponding to the front and the rear optical identification members when the elevator car runs through; acquiring the running time of an elevator car passing through a front optical identification piece and a rear optical identification piece; and determining the running speed based on the running distance and the running time. The invention realizes an independent speed detection mode in the elevator system through secondary development, can effectively detect the running speed of the elevator even when the elevator fails, and is convenient for the management and maintenance of the elevator system by property.
Description
Technical Field
The invention relates to the field of elevator management, in particular to an elevator running speed monitoring system and method.
Background
With the development of the times, high-rise buildings are more and more, elevators are more and more popular in life of people, and therefore monitoring of elevator operation is gradually the focus of attention of people.
For elevator speed monitoring, currently, an atmospheric pressure sensor is generally used for detecting altitude change, specific running speed is calculated by utilizing altitude difference in unit time, but the detection mode is easily influenced by weather change, temperature change and various factors of installation environment airflow change, so that the atmospheric pressure at the same position is greatly changed and fluctuated, a monitoring result is inaccurate, and the accuracy and the reliability of subsequent big data analysis are seriously influenced. On the other hand, although elevator manufacturers provide speed monitoring systems, the property side cannot monitor the speed of the elevator in the case of elevator failure.
Disclosure of Invention
The invention provides an elevator running speed monitoring system and method aiming at the problems in the prior art, secondary development of an elevator system is realized, the existing elevator detection equipment is not relied on, the running speed of an elevator car can be accurately and effectively monitored even when an elevator breaks down, and the elevator system can be comprehensively and effectively managed by properties.
The invention discloses an elevator running speed monitoring system, which comprises: the system comprises a main control module, an identification module arranged in an elevator shaft and a brightness detection module arranged in an elevator car;
the identification module comprises an optical identification piece, and the light state of the optical identification piece is determined based on the floor where the optical identification piece is located;
the light intensity detection module comprises: the light detection unit is used for detecting the light state of the optical identification piece and generating a detection signal;
the main control module is used for:
analyzing the detection signal and determining the floor number corresponding to the optical identification piece;
determining the starting floor number and the current floor number corresponding to the front and the rear optical identification parts when the elevator car runs through;
acquiring the running time of the elevator car passing through the front and the rear optical identification parts;
and determining the running speed based on the running distance and the running time.
Further, the identification module comprises a plurality of optical identification pieces with a bit sequence relation;
the light detection module comprises a plurality of light detection units for respectively detecting the light states of the plurality of light identification parts with the bit sequence relation so as to generate the detection signals with the signal bit sequence;
and the main control module is used for determining the floor number according to the detection signal and the corresponding signal bit sequence.
Further, the optical identification member is: the position sequence relation of the light-emitting part and the light-free part with different light states in the identification module is determined based on the floor where the identification module is located.
Further, in the identification module, the number of light identification members is the same as the number of binary expression parameters of the total number of floors the elevator car can reach.
Further, the elevator operation speed monitoring system further includes: the positive and negative floor identification pieces are arranged in the elevator shaft, and the brightness states of the positive and negative floor identification pieces are determined based on the position relation of floors where the positive and negative floor identification pieces are located relative to the ground;
the elevator operation speed monitoring system further comprises: the positive and negative floor detection unit is arranged on the elevator car and used for detecting the light state of the positive and negative floor identification piece corresponding to the position of the elevator car so as to obtain positive and negative floor signals;
and the main control module is used for analyzing the detection signal and the positive and negative floor signals and determining the number of floors.
The invention also discloses a method for monitoring the running speed of the elevator, which comprises the following steps:
s1: detecting the brightness state of the optical identification pieces which are arranged in the elevator shaft and correspond to each floor to obtain detection signals;
s2: analyzing the detection signal and determining the floor number corresponding to the optical identification piece;
s3: respectively determining the starting floor number and the current floor number corresponding to the front and the rear optical identification members through which the elevator car runs according to the step S1 and the step S2;
s4: determining the running distance of the elevator car based on the starting floor number and the current floor number;
s5: acquiring the running time of the elevator car passing through the front and the rear optical identification parts;
s6: determining an operating speed based on the operating distance and the operating time;
wherein the light state of the light identification member is determined based on the floor on which the light identification member is located.
Further, the step S1 includes:
s101: respectively detecting the light states of a plurality of optical identification parts with a bit sequence relation so as to obtain the detection signals with signal bit sequences;
the step S2 includes:
s201: and determining the floor number based on the detection signals and the corresponding signal bit sequences.
Further, the detection signal is: light signal or no light signal;
the step S201 includes:
s202: determining the corresponding relation between the detection signal and digits in a binary floor parameter grouping based on the signal bit sequence;
s203: determining the numerical value of the digit corresponding to each detection signal;
s204: and converting the floor parameter groups into decimal numbers to obtain the floor numbers.
Further, the method further comprises: acquiring an underground floor parameter for indicating the total number of underground floors;
the step S204 includes:
converting the floor parameter grouping into decimal numbers to obtain integral floor parameters; determining the number of floors based on the integral floor parameters and the underground floor parameters;
the underground floor parameter is used for representing the number of floors located underground.
Further, the method further comprises:
detecting the brightness state of positive and negative floor identification pieces which are arranged in the elevator shaft and correspond to each floor to obtain positive and negative floor signals; the brightness state of the positive and negative floor identification pieces is determined based on the position relation of the floor where the positive and negative floor identification pieces are located relative to the ground;
the S2, including:
and determining the number of floors corresponding to the optical identification member and the positive and negative floor identification members based on the detection signal and the positive and negative floor signals.
The invention has at least the following beneficial effects:
the elevator light intensity detection device is provided with an identification module which comprises light identification pieces generating different light states according to floors, a light intensity detection module arranged on an elevator car generates detection signals according to the light states of the light identification pieces, the detection signals are analyzed through a main control module to obtain specific floor numbers, the running distance of the elevator can be obtained based on the floor numbers, and the running speed can be obtained by combining the running time. The invention realizes an independent speed detection mode in the elevator system through secondary development, can effectively detect the running speed of the elevator even when the elevator fails, and is convenient for the management and maintenance of the elevator system by property.
Other advantageous effects of the present invention will be described in detail in the detailed description section.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a system block diagram of an elevator operating speed monitoring system as disclosed in a preferred embodiment of the present invention;
FIG. 2 is a diagram of a structure of an identification module disclosed in a preferred embodiment of the present invention;
fig. 3 is a diagram of the position structures of the optical identifier and the positive and negative floor identifiers disclosed in the preferred embodiment of the present invention;
fig. 4 is a flow chart of the elevator running speed monitoring method disclosed by the preferred embodiment of the invention.
Wherein, 1-has the light, 2-does not have the light, 3-plus-minus floor sign.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1, the invention discloses an elevator running speed monitoring system, which mainly comprises the following modules:
(1) the identification module sets up the position that corresponds at individual floor in the elevator shaft, for example, set up the position that is a little higher than the entrance hall in the elevator shaft, each identification module mainly includes light identification member, light identification member can give out light/reflect light, and then produces different bright state (luminance, colour etc.), the identification module that each floor corresponds all has different luminous state, each floor number all corresponds promptly and has at least one specific luminous state can be according to the rule setting of prescribing in advance, the embodiment of following can explain it in detail.
(2) The brightness detection module is arranged on the elevator car, for example, the upper part of the elevator car, so that when the elevator car is positioned on a certain floor, the brightness detection module can detect the identification module correspondingly arranged on the floor. The light detection module comprises: the brightness detection unit can adopt photoelectric sensors, cameras and other optical state detectors and is used for detecting the brightness state of the optical identification piece on the floor where the elevator car is located and generating a detection signal, and the detection signal can be considered to reflect the brightness state of the detected optical identification piece.
(3) And the main control module is used for analyzing the detection signal and determining the current floor number. By analyzing the detection signal, information reflecting the light state can be acquired, and the floor (number) corresponding to the light state is acquired based on the information. To obtain the running speed of the elevator car, the distance and time of its running need to be obtained. When the elevator car passes through an optical identification piece, the main control module determines the floor number of the elevator car according to the acquired detection signal, namely the initial floor number, which can be considered as the operation starting point of the elevator car, and the operation distance and time are not available; when the elevator car passes through another optical identification piece, the main control module determines the floor number of the elevator car according to the acquired detection signal, namely the current floor number. At the moment, the elevator car runs for a period of time and generates a distance, and the height of each floor of the building is determined, so that the running distance can be determined by calculating the height difference between the current floor number and the initial floor number; for the operating time, the time t is set when the elevator car first passes the light marking1When the elevator car passes another optical identification piece, the time is t2Calculating t2And t1The difference in time is the run time. According to the existing speed formula, the speed is the quotient of the distance and the time, so that the main control module can calculate the running speed of the elevator car.
It should be noted that in the "two front and back optical identification members" described in the present invention, the "front and back" is used to describe the relative position relationship between the two optical identification members, and does not limit the adjacent or up and down positions of the two optical identification members. The two light identifiers passed by the elevator car in front of and behind can be of adjacent floors, and the running speed obtained in this case can be regarded as the instantaneous speed/current speed; although each floor is provided with the optical identification member, the optical identification member which the elevator car passes through next time can not be adjacent to the optical identification member which passes through first time, for example, the optical identification member which the elevator car passes through three floors first time detects the optical identification member to finally obtain the floor number, the three floors are the initial floor number, then the elevator car descends to the first floor to stop and open the door, although the elevator car necessarily passes through the second floor and can detect the optical identification member to obtain the floor number, the first floor can be selected as the current floor number. In which case the travel distance of the elevator car is longer and the resulting travel speed is more suitable for representing the average speed of the elevator car. Above-mentioned two kinds of circumstances can exist simultaneously, and instantaneous speed and the average speed of elevator can be monitored simultaneously to this system promptly for the operational aspect of this system can more comprehensive detection car. Therefore, in some cases, the elevator car sequentially passes through the optical identification piece corresponding to each floor, and the brightness state of the elevator car is detected to obtain the floor number, but not all the obtained floor numbers are selected as the initial floor number or the current floor number, so that the system can detect each floor number firstly, and then select the initial floor number and the current floor number according to actual requirements to provide necessary support for subsequent calculation of the running speed.
Preferably, the main control module can also send the running speed to the background server in a wireless/wired mode, the property can timely master the current running state of the elevator car by accessing the background server, the background server can also be in communication connection with mobile terminals such as a mobile phone, a user can remotely obtain the running speed through the mobile phone, and the running speed of the current elevator car can be timely known even when the elevator circuit fails. The system is independent of an elevator monitoring system provided by an elevator manufacturer, and the elevator monitoring system can run normally even if the elevator fails, so that the elevator monitoring system is beneficial to the complete and effective management of a property owner on the elevator system.
Preferably, the main control module can be arranged in the elevator car, and specifically comprises: the processor is used for receiving and processing data and can adopt the existing chips such as STM32F1 series chips and the like; the acquisition circuit and the photoelectric coupler are used, because the output signal voltage of the photoelectric sensor and other devices is not matched with the IO port voltage of the processor (STM 32F1 series chips are used), the acquisition circuit is required to be arranged for conversion, and the photoelectric coupler is used for isolation.
In addition, in some embodiments of the invention, the elevator running speed monitoring system further comprises a display board module arranged in the elevator car, the main control module can transmit data to the display board module in a UART (universal asynchronous receiver/transmitter), SPI (serial peripheral interface), IIC (inter-integrated circuit) and other modes, taking UART as an example, the UART can set the transmission baud rate to be 115200, the transmission data length to be 8, the stop bit to be 1 bit to be transmitted, parity check is not used and other modes are used for transmission. The display board module can comprise a nixie tube driving circuit or a liquid crystal display driving circuit and is used for displaying corresponding floor information.
One of the preferred embodiments of the present invention is as follows:
the first embodiment is as follows:
| floor number | Optical identification member |
| A layer of | Non-bright |
| Two layers | Has bright color |
TABLE 1
The elevator comprises a floor and optical identification relation table shown in table 1, the number of the buildings is two, identification modules are arranged in corresponding positions of one floor and two floors in an elevator shaft respectively, each identification module comprises an optical identification piece, the optical identification piece arranged on the one floor can not reflect light or emit light, the optical identification piece arranged on the two floors can possibly emit light or reflect light, and a light detection module on an elevator car is provided with a photoelectric sensor. When the elevator car is at one floor, the detected optical identification piece is not bright, the photoelectric sensor outputs a high-level signal and the high-level signal is received by the main control module, and the main control module analyzes the signal based on the corresponding relation between the light-emitting state and the floor in the table 1 to determine that the current floor number is one floor; when the elevator car is in the second floor, the detected optical identification piece is bright, the photoelectric sensor outputs a low-level signal and the low-level signal is received by the main control module, and the main control module analyzes the signal based on the corresponding relation between the luminous state and the floor shown in the table 1 to determine that the current floor number is the second floor.
In addition, for the case that some floors are more, the identification module can comprise the same number of optical identification pieces as the floors, and the photoelectric sensors also have the same number as the optical identification pieces and can detect the light states of the optical identification pieces in a one-to-one correspondence manner. In the system, incremental floor numbers are corresponded by incremental bright optical identification pieces, for example, one layer is provided with one bright optical identification piece, the second layer is provided with two bright optical identification pieces, the process is analogized in sequence, the main control module carries out statistics on received detection signals to judge the number of the bright optical identification pieces corresponding to the current position of the elevator car, and the current floor is determined based on the number and the corresponding floor relation, so that the monitoring system disclosed by the invention can be suitable for an elevator system with more floors of a building.
As can be seen from the first embodiment, the present invention is suitable for elevator systems with multiple floors, but the number of the light identification members and the light detection units needs to be increased proportionally with the increasing number of floors, which results in increasing the implementation cost and the operation workload of the main control module in some cases with particularly large number of floors. Therefore, the present invention further provides other embodiments, specifically, the identification module includes a plurality of optical identification members having a bit sequence relationship, the identification module of the plurality of optical identification members is suitable for a situation with a large number of floors, and the specific bit sequence relationship may be preset according to an actual situation. The brightness detection module comprises a plurality of brightness detection units, each brightness detection unit correspondingly detects one optical identification piece, namely, each brightness detection unit in the brightness detection module can respectively detect the brightness states of the plurality of optical identification pieces with a bit sequence relation so as to generate the detection signal with a signal bit sequence, and the signal bit sequence corresponds to the bit sequence relation of the optical identification pieces. And the main control module is used for determining the floor number according to the detection signal and the signal bit sequence corresponding to the detection signal. The elevator floor monitoring can be completed by adopting fewer optical identification pieces and optical detection units through setting the optical identification piece bit sequence and the signal bit sequence of the detection signal, so that the implementation cost is saved, and the operation workload of the main control module is reduced. The preferred embodiment is as follows:
example two:
| floor number | Optical identification member A | Optical identification member B | Optical identification member C |
| Negative one layer | Has bright color | Has bright color | Has bright color |
| A layer of | Non-bright | Non-bright | Has bright color |
| Two layers | Non-bright | Has bright color | Non-bright |
| Three layers | Has bright color | Non-bright | Non-bright |
| Four layers | Non-bright | Non-bright | Non-bright |
TABLE 2
As shown in table 2, there are five floors and light identifiers, each floor of the elevator shaft is provided with three light identifiers, the light status corresponding to the light identifiers of each floor can be randomly assigned, but should not be repeated, the position sequence relationship is represented by A, B, C, when the elevator car stops at any floor, the three photoelectric sensors of the light detection module can correspond to the light identifiers A, B, C one by one, and further obtain the detection signals with corresponding signal position sequences, for example, when the elevator car stops at one floor, the detection signals with signal position sequences generated by the light detection module are high level signals-low level signals (which can be represented as 1-1-0), the main control module receives the group of signals and analyzes the signals to obtain the light status of the light identifiers of the floor, and determines the floor where the elevator car is located as one floor based on the floor relationship reflected in table 2. For a five-layer building, five optical identification pieces are usually required to be arranged to realize floor monitoring, and in the embodiment, only three optical identification pieces are adopted, and more floors can be corresponding to the building through the combination of different light states and position sequence relations, so that the implementation cost is saved, and the operation workload of the main control module is reduced.
It should be noted that the present embodiment adopts a light/no light manner to distinguish the light state, and other existing manners may also be adopted to distinguish the light state, for example, the light identifier A, B, C emits red, yellow and blue light respectively, and the corresponding light detection device can generate different detection signals according to the detected lights with different colors; alternatively, the light identifiers A, B, C emit lights with different intensities, and the corresponding light intensity detecting devices can generate different detecting signals according to the detected light intensities. Not to be considered as examples herein, subject to space.
In some embodiments of the present invention including the first and second embodiments, the optical identifier is: specifically, as shown in fig. 2 and 3, a reflective layer is arranged on the surface of the optical member and used for reflecting light of the photoelectric sensor and enabling the light to generate a low-level signal, a dark light layer is arranged on the surface of the non-optical member, light emitted by a light source of the photoelectric sensor cannot be reflected after being irradiated on the dark light layer, and the photoelectric sensor generates a high-level signal. Light sources such as LEDs can also be used as the light identification part, and the light identification part is a light part when the light identification part is turned on and is a non-light part when the light identification part is turned off. In the identification module, the corresponding floors are reflected by the light identification pieces in different light states, namely, the light-emitting pieces and the non-light pieces in different light states are regularly arranged on the floors where the identification module is located and the preset bit sequence.
In the embodiment, the light state is represented by the presence or absence of light of the light identification member, and besides, the light state can be represented by the difference of brightness, color and the like, which is not illustrated herein.
It should be noted that, for the preferred embodiments including the above embodiments, since the optical identifier having the bit sequence relationship has two states of light and no light, the detection signal can be expressed as "0" and "1" of binary numbers, that is, each binary number consisting of "0" and "1" can correspond to one floor, so that the maximum number of floors (the sum of the above-ground number of floors and the below-ground number of floors) to which the optical identifier can be applied can be directly determined by the number of optical identifiers included in the identification module, and at least the number of optical identifiers and light detection units are required for the building in which the system is to be implemented. For example, a binary number of three digits can express 8 digits (000 to 111) at most, that is, an identification module using three optical identification members can be adapted to a building with eight floors (the sum of the above-ground and underground floors) at most. In table 2, the presence and absence of light can be represented by 0 and 1.
In some embodiments of the invention, in the identification module, the number of light identifications is the same as the number of digits of the binary expression parameter of the total number of floors reachable by the elevator car. In the computer field, the high level is usually represented by the number "1", the low level is usually represented by the number "0", therefore can arrange the detected signal according to the signal bit sequence and form a binary number, specifically, the bit sequence relation of the digit of the binary number is directly adopted to correspond to the bit sequence and the signal bit sequence of the optical identification member, the main control module can directly obtain the binary expression corresponding to the floor number by analyzing the detected signal and arranging according to the signal bit sequence, then directly convert to the decimal number and correspondingly adjust to be the floor number, can obtain the conclusion (such as the above-mentioned table 1 and table 2) according to the relation of the light state and the floor, and further reduce the operation amount. The preferred embodiment is as follows:
example three:
| floor number | Binary expression parameter |
| A layer of | 000 |
| Two layers | 001 |
| Three layers | 010 |
| Four layers | 011 |
| Five layers | 100 |
| Six layers | 101 |
| Seven layers | 110 |
| Eight layers | 111 |
TABLE 3
As shown in the table of the relationship between the binary expression parameter and the floor in table 3, three digits of the binary expression parameter correspond to the detection signals with signal bit sequences generated by the three photosensors A, B, C, respectively, and when the photosensors detect that the light identifier is a light identifier, the detection signals are "0", otherwise, the detection signals are "1". For example, when the elevator car stops to a sixth floor, the optical identification member of the main control module is mainly composed of an optical member 1 and a non-optical member 2 as shown in fig. 2, and a reflective layer capable of reflecting light is arranged on the surface of the optical member 1. The main control module obtains that the binary expression parameter corresponding to the detection signal is 101, converts 101 into a decimal number of 5, but the binary expression parameter corresponding to one floor is set as a number 0, namely, the difference value between all floor numbers and the binary expression parameter is always 1, so that the parameter obtained by conversion needs to be added with 1 to obtain the floor number of 6, although the decimal number obtained by conversion is adjusted in a small amplitude, the corresponding relation that the detection signal and the floor have no objective rule shown in the table 2 does not need to be considered, the operation workload is reduced, and the operation speed is improved. Preferably, one floor can be set to 0001, so that the decimal number converted by the binary expression parameter is the floor number per se, and adjustment is not needed, thereby further reducing the calculation amount.
In addition, in the case where there are underground floors in the building, the number converted into decimal number is actually a position relative to the total number of floors, and a good number of floors can be set in advance, and the difference between the obtained total number of floors and the underground floor parameter can be calculated to obtain the number of floors. It is worth mentioning that if the difference is 0, it is not that the elevator car is at the 0 th floor, and the main control module should further process and output the result as: the output should be-1, i.e., minus one floor; if the difference is-1, the output should be-2, i.e. minus two layers, and so on, and this document does not exemplify any more.
In some embodiments of the invention, the elevator run speed monitoring system further comprises: the positive and negative floor marking pieces arranged in the elevator shaft can have the same structure/structure as the light marking pieces, the light states of the positive and negative floor marking pieces are determined based on the position relation of the floor where the positive and negative floor marking pieces are located relative to the ground, and preferably, the positive and negative floor marking pieces can be the light-emitting pieces or the non-light-emitting pieces, so that the positive and negative floor marking pieces have different light-emitting states. The elevator operation speed monitoring system further comprises: and the positive and negative floor detection unit is arranged on the elevator car and used for detecting the light state of the positive and negative floor identification piece corresponding to the position of the elevator car so as to obtain positive and negative floor signals. The main control module is used for analyzing the detection signal and the positive and negative floor signals and determining the number of floors, namely the main control module obtains the number of floors by analyzing the detection signal, but the number of floors can be an overground floor or an underground floor, so the main control module also needs to analyze the positive and negative floor signals and further determines that the floor is positioned on the ground or underground, and finally the accurate number of floors is obtained.
For buildings with more underground floors, the invention can further reduce the number of the light identification parts in the display module and the light detection units in the light detection module by the scheme. The following examples are given in detail.
Example four:
TABLE 4
As shown in table 4, the building has 14 floors, which includes 7 floors above ground and 7 floors below ground, the identification module of each floor includes three optical identification members with a sequence relationship and a positive and negative floor identification member, the positive and negative floor identification member can be a light member and a non-light member according to the position relative to the ground, the elevator car is provided with four photoelectric sensors, one of which is a positive and negative floor detection unit for detecting the positive and negative floor identification members, and three of which is a brightness detection unit for respectively detecting the optical identification members and generating detection signals with signal sequences, the three detection signals respectively correspond to three digits of binary expression parameters, wherein the sequence of the floor optical identification members with the same absolute value of the floor number has the same brightness state, and therefore the detection signals generated by corresponding detection are also the same, at this time, the main control module analyzes the detection signals and converts the obtained binary expression parameters into decimal numbers, the number of floors corresponding to this number may be above ground and below ground, and therefore needs to be further determined in combination with positive and negative floor indicators. When the main controller receives the positive and negative floor signals generated by the positive and negative floor identification pieces, the positive and negative floor signals are analyzed, if the positive and negative floor signals are high level signals, the signals can be represented as 1, namely the decimal number is an underground floor; if the signal is a low level signal, it can be represented as 0, i.e. the decimal number is the floor above the ground.
Four identification pieces are arranged in the above mode, including a positive and negative floor identification piece 3 and three optical identification pieces, and the arrangement mode can be as shown in fig. 3. The system can be adapted to buildings with 14 floors (including seven floors above the ground and seven floors below the ground) at most, and the main control module does not need to compare the relation between the light state and the floors, so that the calculation amount is reduced.
The number of floors corresponding to the optical identification member can be accurately and effectively obtained through the modes disclosed by the embodiments, so that the initial number of floors and the current number of floors are determined, and finally the monitoring of the elevator on the running speed is realized.
As shown in fig. 4, the present invention also discloses an elevator operation speed monitoring method, which can be applied to the elevator operation speed monitoring system disclosed in the above embodiments, and the method specifically includes:
s1: and detecting the brightness state of the optical identification pieces which are arranged in the elevator shaft and correspond to each floor so as to obtain detection signals.
S2: and analyzing the detection signal and determining the floor number corresponding to the optical identification piece.
S3: and respectively determining the starting floor number and the current floor number corresponding to the front and the rear optical identification members through which the elevator car passes according to the step S1 and the step S2.
S4: and determining the running distance of the elevator car based on the initial floor number and the current floor number.
S5: and acquiring the running time of the elevator car passing through the front and the rear optical identification parts.
S6: and determining the running speed based on the running distance and the running time.
Wherein the light state of the light identification member is determined based on the floor on which the light identification member is located.
In some embodiments of the present invention, the step S1 includes:
s101: respectively detecting the light states of a plurality of optical identification parts with a bit sequence relation so as to obtain the detection signals with signal bit sequences;
the step S2 includes:
s201: and determining the floor number based on the detection signals and the corresponding signal bit sequences.
In some embodiments of the invention, the detection signal is: light signal or no light signal;
the step S201 includes:
s202: determining the corresponding relation between the detection signal and digits in a binary floor parameter grouping based on the signal bit sequence;
s203: determining the numerical value of the digit corresponding to each detection signal;
s204: and converting the floor parameter groups into decimal numbers to obtain the floor numbers.
In some embodiments of the invention, the method further comprises: acquiring an underground floor parameter for indicating the total number of underground floors;
the step S204 includes: converting the floor parameter grouping into decimal numbers to obtain integral floor parameters; determining the number of floors based on the integral floor parameters and the underground floor parameters;
the underground floor parameter is used for representing the number of floors located underground.
In some embodiments of the invention, the method further comprises:
detecting the brightness state of positive and negative floor identification pieces which are arranged in the elevator shaft and correspond to each floor to obtain positive and negative floor signals; the brightness state of the positive and negative floor identification pieces is determined based on the position relation of the floor where the positive and negative floor identification pieces are located relative to the ground;
the S2, including: and determining the number of floors corresponding to the optical identification member and the positive and negative floor identification members based on the detection signal and the positive and negative floor signals.
The specific embodiment and beneficial effects of the elevator running speed monitoring method disclosed by the invention refer to the elevator running speed monitoring system and the detailed specifications of the first to fourth embodiments, and are not repeated herein.
It should be noted that the above-mentioned symbols for representing the steps are not used for limiting the sequence between the steps, and the sequence adjustment is performed according to the actual situation in the specific implementation process, so as to achieve the technical effect of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention.
Claims (10)
1. An elevator operating speed monitoring system, comprising: the system comprises a main control module, an identification module arranged in an elevator shaft and a brightness detection module arranged in an elevator car;
the identification module comprises an optical identification piece, and the light state of the optical identification piece is determined based on the floor where the optical identification piece is located;
the light intensity detection module comprises: the light detection unit is used for detecting the light state of the optical identification piece and generating a detection signal;
the main control module is used for:
analyzing the detection signal and determining the floor number corresponding to the optical identification piece;
determining the starting floor number and the current floor number corresponding to the front and the rear optical identification parts when the elevator car runs through;
acquiring the running time of the elevator car passing through the front and the rear optical identification parts;
and determining the running speed based on the running distance and the running time.
2. The elevator operating speed monitoring system of claim 1, wherein the identification module includes a number of the optical identification members in a bit-sequential relationship;
the light detection module comprises a plurality of light detection units for respectively detecting the light states of the plurality of light identification parts with the bit sequence relation so as to generate the detection signals with the signal bit sequence;
and the main control module is used for determining the floor number according to the detection signal and the corresponding signal bit sequence.
3. The elevator operating speed monitoring system of claim 2, wherein the light identifier is: the position sequence relation of the light-emitting part and the light-free part with different light states in the identification module is determined based on the floor where the identification module is located.
4. The elevator run speed monitoring system of claim 3, wherein in the identification module, the number of light identifiers is the same as the number of binary expression parameters for the total number of floors the elevator car can reach.
5. The elevator operating speed monitoring system of claim 4, further comprising: the positive and negative floor identification pieces are arranged in the elevator shaft, and the brightness states of the positive and negative floor identification pieces are determined based on the position relation of floors where the positive and negative floor identification pieces are located relative to the ground;
the elevator operation speed monitoring system further comprises: the positive and negative floor detection unit is arranged on the elevator car and used for detecting the light state of the positive and negative floor identification piece corresponding to the position of the elevator car so as to obtain positive and negative floor signals;
and the main control module is used for analyzing the detection signal and the positive and negative floor signals and determining the number of floors.
6. An elevator running speed monitoring method is characterized by comprising the following steps:
s1: detecting the brightness state of the optical identification pieces which are arranged in the elevator shaft and correspond to each floor to obtain detection signals;
s2: analyzing the detection signal and determining the floor number corresponding to the optical identification piece;
s3: respectively determining the starting floor number and the current floor number corresponding to the front and the rear optical identification members through which the elevator car runs according to the step S1 and the step S2;
s4: determining the running distance of the elevator car based on the initial floor number and the current floor number;
s5: acquiring the running time of the elevator car passing through the front and the rear optical identification parts;
s6: determining an operating speed based on the operating distance and the operating time;
wherein the light state of the light identification member is determined based on the floor on which the light identification member is located.
7. The method for monitoring an operating speed of an elevator according to claim 6, wherein the step S1 includes:
s101: respectively detecting the light states of a plurality of optical identification parts with a bit sequence relation so as to obtain the detection signals with signal bit sequences;
the step S2 includes:
s201: and determining the floor number based on the detection signals and the corresponding signal bit sequences.
8. The method for monitoring the running speed of an elevator according to claim 7, wherein the detection signal is: light signal or no light signal;
the step S201 includes:
s202: determining the corresponding relation between the detection signal and digits in a binary floor parameter grouping based on the signal bit sequence;
s203: determining the numerical value of the digit corresponding to each detection signal;
s204: and converting the floor parameter groups into decimal numbers to obtain the floor numbers.
9. The method of monitoring the operating speed of an elevator according to claim 8, further comprising: acquiring an underground floor parameter for indicating the total number of underground floors;
the step S204 includes:
converting the floor parameter grouping into decimal numbers to obtain integral floor parameters; determining the number of floors based on the integral floor parameters and the underground floor parameters;
the underground floor parameter is used for representing the number of floors located underground.
10. The method of monitoring the operating speed of an elevator according to claim 8, further comprising:
detecting the brightness state of positive and negative floor identification pieces which are arranged in the elevator shaft and correspond to each floor to obtain positive and negative floor signals; the brightness state of the positive and negative floor identification pieces is determined based on the position relation of the floor where the positive and negative floor identification pieces are located relative to the ground;
the S2, including:
and determining the number of floors corresponding to the optical identification member and the positive and negative floor identification members based on the detection signal and the positive and negative floor signals.
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