CN112061909A - Elevator control system - Google Patents
Elevator control system Download PDFInfo
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- CN112061909A CN112061909A CN202011007626.7A CN202011007626A CN112061909A CN 112061909 A CN112061909 A CN 112061909A CN 202011007626 A CN202011007626 A CN 202011007626A CN 112061909 A CN112061909 A CN 112061909A
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- elevator car
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- elevator
- millimeter wave
- distance
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3446—Data transmission or communication within the control system
- B66B1/3461—Data transmission or communication within the control system between the elevator control system and remote or mobile stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention is suitable for the technical field of elevator detection, and provides an elevator control system, which comprises an elevator car and an elevator controller, and also comprises: the millimeter wave sensor is arranged at the top outside the elevator car; the millimeter wave sensor is used for acquiring the distance between the position of the elevator car and the top of the shaft where the elevator car is located and sending the distance to the elevator controller; the elevator controller is used for receiving the preset target floor and the distance and calculating the current floor where the elevator car is located according to the distance; and controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located. The millimeter wave sensor arranged on the top outside the elevator car is simple to mount and reliable to operate, and avoids danger in the mounting operation process. And through the millimeter wave sensor, the distance between the position where the elevator car is located and the top of the shaft where the elevator car is located is accurate, and accurate control of the elevator car by an elevator controller is facilitated.
Description
Technical Field
The invention belongs to the technical field of elevator detection, and particularly relates to an elevator control system.
Background
One key task of an elevator control system is to accurately judge floor information, and the conventional elevator control system mainly adopts a U-shaped switch to identify a magnetic isolation plate to judge the floor information. The floor information is judged by adopting a mode of recognizing the magnetic isolation plate by the U-shaped switch, the elevator car is required to be provided with the double U-shaped switches, one magnetic isolation plate is arranged on each floor, when the double U-shaped switches pass through the magnetic isolation plate of each floor, the elevator is recognized to be in an ascending mode or a descending mode, the floor where the elevator is located is judged by counting the magnetic isolation plates, and the lowest floor is required to be provided with a correcting device for resetting the floor counting.
The existing elevator control system judges floors on the basis of a U-shaped switch and a magnetic isolation plate, but the magnetic isolation plate has the problems of complex installation and difficult fault recovery. In particular, in the installation of elevators in high-rise buildings, the magnetic isolation plates need to be installed on each floor, so that the installation is difficult and the installation operation has great danger. Therefore, an elevator control system which is simple to install, reliable to operate and capable of accurately judging floor information is needed.
Disclosure of Invention
In view of this, the embodiment of the invention provides an elevator control system to solve the problems that an elevator control system in the prior art is complex to install, prone to failure and low in floor judgment accuracy.
A first aspect of an embodiment of the present invention provides an elevator control system, including an elevator car and an elevator controller, further including: a millimeter wave sensor disposed on the top outside the elevator car;
the millimeter wave sensor is used for acquiring the distance between the position of the elevator car and the top of the shaft where the elevator car is located and sending the distance to the elevator controller;
the elevator controller is used for receiving a preset target floor and the distance and calculating the current floor where the elevator car is located according to the distance; and controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located.
Optionally, the millimeter wave sensor is further configured to obtain a reference distance corresponding to each floor, and send the reference distance corresponding to each floor to the elevator controller;
the calculating the current floor where the elevator car is located according to the distance comprises the following steps:
and the elevator controller receives the reference distance corresponding to each floor, and calculates the current floor where the elevator car is located according to the distance and the reference distance corresponding to each floor.
Optionally, the obtaining the reference distance corresponding to each floor includes:
and the millimeter wave sensor takes the distance between the corresponding position of the elevator car when the elevator car is respectively positioned at each floor and the top of the shaft where the elevator car is positioned as the reference distance corresponding to each floor.
Optionally, the controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located includes:
and the elevator controller determines the reference distance corresponding to the preset target floor according to the reference distance corresponding to each floor, and controls the elevator car to move to the preset target floor according to the reference distance corresponding to the preset target floor.
Optionally, the millimeter wave sensor is further configured to obtain a running direction of the elevator car relative to movement of the elevator car at the top of the hoistway where the elevator car is located, using the top of the hoistway where the elevator car is located as a reference position, and send the running direction to the elevator controller;
the controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located comprises:
the elevator controller receives the running direction, the target to-be-run direction and the stop floor in the running direction, determines a first running direction according to the current floor of the elevator car and the preset target floor, and controls the elevator car to move to the preset target floor when the preset target floor is located between the current floor and the stop floor and the running direction, the target to-be-run direction and the first running direction are consistent; when the preset target floor is located between the current floor and the stop floor, and the running direction, the target to-be-run direction and the first running direction are not consistent, controlling the elevator car to move to the stop floor first and then to the preset target floor; and the direction of the target to be operated is the direction of the target to be operated when the target is positioned at the preset target floor.
Optionally, the controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located includes:
and when the preset target floor is not between the current floor and the stop floor, controlling the elevator car to move to the stop floor first and then to the preset target floor.
Optionally, the millimeter wave sensor includes: the device comprises a millimeter wave transmitting module, a millimeter wave receiving module, a signal processing module and a data processing module;
the millimeter wave transmitting module is used for transmitting a millimeter wave signal to the top of the hoistway where the elevator car is located and sending the millimeter wave signal to the millimeter wave receiving module;
the millimeter wave receiving module is used for receiving the millimeter wave signal and an echo signal which is reflected by the millimeter wave signal through the top of a hoistway where the elevator car is located;
the signal processing module is used for processing the millimeter wave signal and the echo signal to obtain distance data, speed data and angle data of the millimeter wave sensor moving relative to the top of a hoistway where the elevator car is located;
and the data processing module is used for obtaining the distance from the position of the elevator car to the top of the shaft where the elevator car is located according to the distance data, the speed data and the angle data.
Optionally, the obtaining the reference distance corresponding to each floor includes:
and the data processing module acquires the reference distance corresponding to each floor according to the distance data, the speed data and the angle data.
Optionally, obtaining the running direction of the elevator car relative to the movement of the top of the hoistway where the elevator car is located includes:
and the data processing module obtains the running direction of the elevator car relative to the movement of the top of the shaft where the elevator car is located according to the speed data.
Optionally, the processing of the millimeter wave signal and the echo signal to obtain distance data, speed data and angle data of the millimeter wave sensor moving relative to the top of the hoistway where the elevator car is located includes:
performing frequency mixing processing on the millimeter wave signal and the echo signal to obtain an intermediate frequency signal;
carrying out low-pass filtering processing on the intermediate frequency signal to obtain a beat signal;
and carrying out Fourier transform based on the beat signal to obtain distance data, speed data and angle data of the millimeter wave sensor moving relative to the top of the shaft where the elevator car is located.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: acquiring the distance between the position of the elevator car and the top of a shaft where the elevator car is located through a millimeter wave sensor arranged at the top outside the elevator car, and sending the distance to an elevator controller; receiving a preset target floor and a distance through an elevator controller, and calculating a current floor where an elevator car is located according to the distance; and controlling the elevator car to move to a preset target floor according to the current floor where the elevator car is located. The millimeter wave sensor arranged at the top outside the elevator car is simple to mount and reliable in operation, and danger in the mounting operation process is avoided. And through the millimeter wave sensor, obtain the distance between elevator car position to elevator car place well top, the measuring distance is accurate, is favorable to elevator controller to remove to predetermineeing the target floor from current floor through the accurate control elevator car of distance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an elevator control system provided by an embodiment of the present invention;
fig. 2 is a schematic view of an installation location of an elevator control system provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a millimeter wave sensor according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Referring to fig. 1, an elevator control system 10 includes an elevator car 100 and an elevator controller 200, and further includes a millimeter wave sensor 300 disposed on top of the outside of the elevator car 100.
The millimeter wave sensor 300 can be used to obtain the distance from the position of the elevator car 100 to the top of the hoistway where the elevator car 100 is located, and send the distance to the elevator controller 200.
Optionally, the millimeter wave sensor 300 may be further configured to obtain a reference distance corresponding to each floor, and send the reference distance corresponding to each floor to the elevator controller 200.
Referring to fig. 2, when the reference distance corresponding to each floor is obtained, the elevator control system may be set in a debugging mode, and when the elevator car 100 stops at the leveling position of each floor, the millimeter wave sensor 300 may use the distance between the position corresponding to the elevator car 100 when the elevator car 100 is at each floor and the top of the hoistway where the elevator car 100 is located as the reference distance corresponding to each floor.
Optionally, the millimeter wave sensor 300 may be further configured to use the top of the hoistway where the elevator car 100 is located as a reference position, obtain a moving direction of the elevator car 100 relative to the top of the hoistway where the elevator car 100 is located, and send the moving direction to the elevator controller 200.
Alternatively, referring to fig. 3, millimeter wave sensor 300 may include: millimeter wave transmitting module 301, millimeter wave receiving module 302, signal processing module 303 and data processing module 304.
Referring to fig. 2, the millimeter wave transmitting module 301 may be configured to transmit a millimeter wave signal to the top of the hoistway where the elevator car 100 is located, and simultaneously transmit the millimeter wave signal to the millimeter wave receiving module 302. The millimeter wave receiving module 302 may be configured to receive a millimeter wave signal and an echo signal of the millimeter wave signal reflected by the top of the hoistway where the elevator car 100 is located. The signal processing module 303 may be configured to process the millimeter wave signal and the echo signal to obtain distance data, speed data, and angle data of the movement of the millimeter wave sensor 300 relative to the top of the hoistway where the elevator car 100 is located. The data processing module 304 can be used to obtain the distance between where the elevator car 100 is located and the top of the hoistway where the elevator car 100 is located based on the distance data, the speed data, and the angle data.
Optionally, when the elevator car 100 stops at the leveling position of each floor, the data processing module 304 may further obtain, according to the distance data, the speed data, and the angle data, a distance between a corresponding position of the elevator car 100 at each floor and a top of a hoistway where the elevator car 100 is located as a reference distance corresponding to each floor.
Optionally, the data processing module 304 can also obtain the running direction of the elevator car 100 relative to the top of the hoistway where the elevator car 100 is located according to the speed data.
The signal processing module 303 processes the millimeter wave signal and the echo signal to obtain distance data, speed data, and angle data of the millimeter wave sensor 300 moving relative to the top of the hoistway where the elevator car 100 is located, and the distance data, the speed data, and the angle data may include: the signal processing module 303 performs frequency mixing processing on the millimeter wave signal and the echo signal to obtain an intermediate frequency signal; carrying out low-pass filtering processing on the intermediate frequency signal to obtain a beat signal; and performing Fourier transform based on the beat signal to obtain distance data, speed data and angle data of the movement of the millimeter wave sensor 300 relative to the top of the hoistway where the elevator car 100 is located.
For example, the millimeter wave transmitting module 301 may transmit a continuous string of sawtooth frequency modulated continuous waves, the sawtooth frequency modulated continuous waves are received and reflected by the top of the hoistway where the elevator car 100 is located, and the millimeter wave receiving module 302 receives the echo signal reflected by the top of the hoistway where the elevator car 100 is located. Meanwhile, the millimeter wave transmitting module 301 may directly transmit the sawtooth frequency modulated continuous wave to the millimeter wave receiving module 302 in a feeder line manner. The millimeter wave receiving module 302 receives the echo signal and the sawtooth frequency modulation continuous wave obtained by the feeder line, and sends the echo signal and the sawtooth frequency modulation continuous wave obtained by the feeder line to the signal processing module 303 for processing.
When the elevator car 100 is stationary relative to the top of the hoistway where the elevator car 100 is located, the signal processing module 303 may perform frequency mixing on the echo signal and the sawtooth frequency modulated continuous wave obtained by the feeder line, deskew the sawtooth frequency modulated continuous wave to obtain an intermediate frequency signal, perform low-pass filtering on the intermediate frequency signal to obtain a difference frequency signal, perform frequency spectrum analysis on the difference frequency signal to obtain a frequency deviation, and according to the frequency deviation of the difference frequency signal, may obtain real-time distance data between the top of the hoistway where the elevator car 100 is located and the millimeter wave sensor 300, that is, real-time distance data between the top of the hoistway where the elevator car 100 is located and the top of the hoistway where the elevator car 100 is located. The signal processing module 303 can determine the angle data of the top of the hoistway where the elevator car 100 is located according to the phase difference between the adjacent receiving antennas in the millimeter wave receiving module 302, the data processing module 304 selects the real-time distance data with the angle data of 0 to perform clustering operation, and the obtained distance between the position where the elevator car 100 is located and the top of the hoistway where the elevator car 100 is located is more accurate.
The signal processing module 303 can use the doppler effect between the millimeter wave sensor 300 and the top of the hoistway where the elevator car 100 is located to measure the speed as the elevator car 100 moves relative to the top of the hoistway where the elevator car 100 is located. Similarly, the signal processing module 303 may perform frequency mixing on the echo signal and the sawtooth frequency modulated continuous wave obtained by the feeder line, deskew the sawtooth frequency modulated continuous wave to obtain an intermediate frequency signal, perform low-pass filtering on the intermediate frequency signal to obtain a beat signal, and perform spectrum analysis on the beat signal to obtain a beat frequency. For the running target, the beat frequency simultaneously comprises the frequency offset and the Doppler frequency shift generated by the distance, and because the beat signal simultaneously comprises the distance and the Doppler information of the target, the change from the echo frequency pulse to the pulse can be observed, and the distance and the Doppler information can be extracted through distance/Doppler processing. The usual range/doppler transform is a two-dimensional fourier transform. The method performs Fourier transform on the fast time dimension and the slow time dimension respectively. The fourier transform in the fast time dimension may be referred to as a distance transform, with spectral peaks occurring at frequency offsets. The fourier transform in the slow time dimension may be referred to as a velocity transform, with spectral peaks appearing at the blurred doppler frequencies. The range and doppler information in the beat signal can be separated and extracted by fourier transform, and two-dimensional fast fourier transform can be used to increase the operation speed. This facilitates obtaining real-time distance data and speed data between the millimeter wave sensor 300 and the top of the hoistway in which the elevator car 100 is located. Similarly, according to the method for obtaining the angle data when the elevator car 100 is stationary relative to the top of the hoistway where the elevator car 100 is located, the angle data when the elevator car 100 moves relative to the top of the hoistway where the elevator car 100 is located can be obtained, the data processing module 304 selects real-time distance data and speed data with the angle data of 0 to perform clustering operation, and the obtained distance between the position where the elevator car 100 is located and the top of the hoistway where the elevator car 100 is located is more accurate.
For example, the data processing module 304 selects real-time speed data with angle data of 0 to perform clustering operation, and can screen the positive and negative of the speed data, so as to obtain the moving direction of the elevator car 100 relative to the top of the hoistway where the elevator car 100 is located.
The elevator controller 200 may be configured to receive a preset target floor and a distance, and calculate a current floor where the elevator car 100 is located according to the distance; and controlling the elevator car 100 to move to a preset target floor according to the current floor where the elevator car 100 is located.
Optionally, the elevator controller 200 calculates the current floor where the elevator car is located according to the distance, and may include: the elevator controller 200 receives the reference distance corresponding to each floor, and calculates the current floor where the elevator car 100 is located based on the distance and the reference distance corresponding to each floor.
After receiving the reference distance corresponding to each floor, the elevator controller 200 may calculate the current floor where the elevator car 100 is located according to a magnitude relationship between the distance and the reference distance corresponding to each floor.
Optionally, controlling the elevator car to move 100 to the preset target floor according to the current floor where the elevator car 100 is located may include: the elevator controller 200 determines a reference distance corresponding to a preset target floor according to the reference distance corresponding to each floor, and controls the elevator car 100 to move to the preset target floor according to the reference distance corresponding to the preset target floor.
Optionally, the elevator controller 200 may further receive the running direction, the target to-be-run direction, and the stop floor in the running direction, determine a first running direction according to the current floor of the elevator car 100 and the preset target floor, and control the elevator car 100 to move to the preset target floor when the preset target floor is located between the current floor and the stop floor, and the running direction, the target to-be-run direction, and the first running direction are consistent; when the preset target floor is between the current floor and the terminal floor and the running direction, the target to-be-run direction and the first running direction are inconsistent, controlling the elevator car 100 to move to the terminal floor first and then to the preset target floor; and the direction of the target to be operated is the direction of the target to be operated when the target is positioned at a preset target floor. When the preset target floor is not between the current floor and the end floor, the elevator car 100 is controlled to move to the end floor first and then to the preset target floor.
For example, assuming that the elevator controller 200 calculates the current floor of the elevator car 100 to be 5 floors and the preset target floor to be 10 floors according to the distance between the position of the elevator car 100 and the top of the hoistway of the elevator car 100, the elevator controller 200 may control the elevator car 100 to move from 5 floors to 10 floors according to the reference distance corresponding to 10 floors.
For example, it is assumed that the elevator controller 200 calculates the current floor of the elevator car 100 as 5 floors, the preset target floor is 3 floors, the target to be run at 3 floors is downward, the running direction of the elevator car 100 is downward, and the stop floor in the running direction is 1 floor according to the distance between the position of the elevator car 100 and the top of the hoistway where the elevator car 100 is located. According to the situation that the current floor is 5 floors and the preset target floor is 3 floors, the first running direction can be determined to be downward. That is, at this time, the preset target floor 3 is located between the current floor 5 and the terminal floor 1, and the running direction of the elevator car 100, the target to-be-run direction of the destination located at the floor 3, and the first running direction are all downward, the elevator controller 200 may control the elevator car 100 to move from the current floor 5 to the preset target floor 3, and then to the terminal floor 1.
For example, it is assumed that the elevator controller 200 calculates the current floor of the elevator car 100 as 5 floors, the preset target floor as 3 floors, the target to be run at 3 floors upward, the running direction of the elevator car 100 downward, and the stop floor in the running direction as 1 floor according to the distance between the position of the elevator car 100 and the top of the hoistway where the elevator car 100 is located. According to the situation that the current floor is 5 floors and the preset target floor is 3 floors, the first running direction can be determined to be downward. That is, at this time, the preset target floor 3 is located between the current floor 5 and the end floor 1, but the running direction of the elevator car 100, the waiting running direction of the target located at the floor 3, and the first running direction are not consistent, and the waiting running direction of the target located at the floor 3 is upward, the elevator controller 200 may control the elevator car 100 to move from the current floor 5 to the end floor 1 first, and then to move to the preset target floor 3.
For example, it is assumed that the elevator controller 200 calculates the current floor of the elevator car 100 as 5 floors, the preset destination floor as 10 floors, the destination to be operated at 10 floors as an upward direction, the operation direction of the elevator car 100 as a downward direction, and the stop floor in the operation direction as 1 floor according to the distance between the position of the elevator car 100 and the top of the hoistway where the elevator car 100 is located. According to the fact that the current floor is 5 floors and the preset target floor is 10 floors, the first running direction can be determined to be upward, at the moment, the preset target floor is 10 floors and is not located between the current floor 5 floor and the terminal floor 1 floor, and then the elevator controller 200 can control the elevator car 100 to move from the current floor 5 floor to the terminal floor 1 floor and then to the preset target floor 10 floor.
According to the elevator control system, the distance and the running direction between the position of the elevator car and the top of the shaft where the elevator car is located can be obtained through the millimeter wave sensor arranged at the top outside the elevator car, and the distance and the running direction are sent to the elevator controller; receiving a preset target floor, a preset distance and a preset running direction through an elevator controller, and calculating a current floor where an elevator car is located according to the distance; and controlling the elevator car to move to a preset target floor according to the current floor and the running direction of the elevator car. This embodiment constitutes elevator control system through the millimeter wave sensor that sets up the top outside elevator car for elevator control system deploys the installation simple, has avoided dangerous and the easy access maintenance that exists among the installation operation process. And through the millimeter wave sensor, obtain the distance between elevator car position to elevator car place well top, measured distance and direction of operation are accurate, are favorable to elevator controller to remove to predetermineeing the target floor from current floor through the accurate quick control elevator car of distance and direction of operation, and the operation is reliable.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. An elevator control system, includes elevator car and elevator controller, its characterized in that still includes: a millimeter wave sensor disposed on the top outside the elevator car;
the millimeter wave sensor is used for acquiring the distance between the position of the elevator car and the top of the shaft where the elevator car is located and sending the distance to the elevator controller;
the elevator controller is used for receiving a preset target floor and the distance and calculating the current floor where the elevator car is located according to the distance; and controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located.
2. Elevator control system according to claim 1,
the millimeter wave sensor is also used for acquiring the reference distance corresponding to each floor and sending the reference distance corresponding to each floor to the elevator controller;
the calculating the current floor where the elevator car is located according to the distance comprises the following steps:
and the elevator controller receives the reference distance corresponding to each floor, and calculates the current floor where the elevator car is located according to the distance and the reference distance corresponding to each floor.
3. The elevator control system of claim 2, wherein said obtaining a reference distance for each floor comprises:
and the millimeter wave sensor takes the distance between the corresponding position of the elevator car when the elevator car is respectively positioned at each floor and the top of the shaft where the elevator car is positioned as the reference distance corresponding to each floor.
4. The elevator control system of claim 3, wherein said controlling the elevator car to move to the preset target floor based on the current floor at which the elevator car is located comprises:
and the elevator controller determines the reference distance corresponding to the preset target floor according to the reference distance corresponding to each floor, and controls the elevator car to move to the preset target floor according to the reference distance corresponding to the preset target floor.
5. Elevator control system according to any one of claims 2 to 4,
the millimeter wave sensor is further used for taking the top of the well where the elevator car is located as a reference position, acquiring the running direction of the elevator car relative to the movement of the top of the well where the elevator car is located, and sending the running direction to the elevator controller;
the controlling the elevator car to move to the preset target floor according to the current floor where the elevator car is located comprises:
the elevator controller receives the running direction, the target to-be-run direction and the stop floor in the running direction, determines a first running direction according to the current floor of the elevator car and the preset target floor, and controls the elevator car to move to the preset target floor when the preset target floor is located between the current floor and the stop floor and the running direction, the target to-be-run direction and the first running direction are consistent; when the preset target floor is located between the current floor and the stop floor, and the running direction, the target to-be-run direction and the first running direction are not consistent, controlling the elevator car to move to the stop floor first and then to the preset target floor; and the direction of the target to be operated is the direction of the target to be operated when the target is positioned at the preset target floor.
6. The elevator control system of claim 5, wherein said controlling the elevator car to move to the preset target floor based on the current floor at which the elevator car is located comprises:
and when the preset target floor is not between the current floor and the stop floor, controlling the elevator car to move to the stop floor first and then to the preset target floor.
7. The elevator control system of claim 5, wherein the millimeter wave sensor comprises: the device comprises a millimeter wave transmitting module, a millimeter wave receiving module, a signal processing module and a data processing module;
the millimeter wave transmitting module is used for transmitting a millimeter wave signal to the top of the hoistway where the elevator car is located and sending the millimeter wave signal to the millimeter wave receiving module;
the millimeter wave receiving module is used for receiving the millimeter wave signal and an echo signal which is reflected by the millimeter wave signal through the top of a hoistway where the elevator car is located;
the signal processing module is used for processing the millimeter wave signal and the echo signal to obtain distance data, speed data and angle data of the millimeter wave sensor moving relative to the top of a hoistway where the elevator car is located;
and the data processing module is used for obtaining the distance from the position of the elevator car to the top of the shaft where the elevator car is located according to the distance data, the speed data and the angle data.
8. The elevator control system of claim 7, wherein said obtaining a reference distance for each floor comprises:
and the data processing module acquires the reference distance corresponding to each floor according to the distance data, the speed data and the angle data.
9. The elevator control system of claim 7, wherein said obtaining a travel direction of movement of the elevator car relative to a top of a hoistway in which the elevator car is located comprises:
and the data processing module obtains the running direction of the elevator car relative to the movement of the top of the shaft where the elevator car is located according to the speed data.
10. The elevator control system of claim 7, wherein said processing said millimeter wave signals and said echo signals to obtain distance data, velocity data, and angle data of movement of said millimeter wave sensor relative to a top of a hoistway in which said elevator car is located comprises:
performing frequency mixing processing on the millimeter wave signal and the echo signal to obtain an intermediate frequency signal;
carrying out low-pass filtering processing on the intermediate frequency signal to obtain a beat signal;
and carrying out Fourier transform based on the beat signal to obtain distance data, speed data and angle data of the millimeter wave sensor moving relative to the top of the shaft where the elevator car is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007626.7A CN112061909B (en) | 2020-09-23 | 2020-09-23 | Elevator control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007626.7A CN112061909B (en) | 2020-09-23 | 2020-09-23 | Elevator control system |
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Cited By (1)
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| CN114803747A (en) * | 2021-01-29 | 2022-07-29 | 日立楼宇技术（广州）有限公司 | Car positioning method and device, computer equipment and storage medium |
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| CN112061909B (en) | 2023-03-17 |
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