CN109987470B

CN109987470B - Method, device, system and medium for determining position of elevator car

Info

Publication number: CN109987470B
Application number: CN201910310104.5A
Authority: CN
Inventors: 黄立明; 伍翔; 陈涛; 刘真
Original assignee: Hitachi Building Technology Guangzhou Co Ltd
Current assignee: Hitachi Building Technology Guangzhou Co Ltd
Priority date: 2019-04-17
Filing date: 2019-04-17
Publication date: 2021-06-29
Anticipated expiration: 2039-04-17
Also published as: CN109987470A

Abstract

The invention discloses a method, a device, a system and a medium for determining the position of an elevator car, which relate to the technical field of elevators, and the method comprises the following steps: in the emergency stop process of the elevator, determining the effective duration corresponding to the leveling sensor signal based on the emergency stop signal of the elevator; acquiring position recording data and operation data of the elevator car, wherein the position recording data is recorded according to the flat bed sensor signal; determining current position information of the elevator car according to the valid duration, the position record data and the operation data. The invention solves the problem of high cost for determining the position of the elevator car caused by installing the encoder and the speed limiting wheel in the prior art, and simultaneously solves the problem of high engineering implementation difficulty caused by installing a card reader and installing IC cards on each layer through the card reader in the prior art, thereby reducing the cost and the engineering maintenance difficulty.

Description

Method, device, system and medium for determining position of elevator car

Technical Field

The invention relates to the technical field of elevators, in particular to a method, a device, a system and a medium for determining the position of an elevator car.

Background

With the rapid development of science and technology, elevators are more and more popular, and great convenience is brought to life, work and study of people.

During operation of the elevator, a situation may arise in which the elevator malfunctions. In the event of an elevator failure, the elevator is brought to an emergency stop, and then the elevator may be slowly returned to the terminal to determine the position of the car before it is run at normal speed. The time for the elevator to return to the terminal station is tens of seconds as short as several hundred seconds as long. When the power is lost in motion, the elevator can also be stopped emergently, and the phenomenon of floor staggering can also occur. If the elevator runs at normal speed directly, the accident of top-squat and bottom-squat can occur. The existing method for determining the car generally installs an encoder on a speed limiting wheel of the elevator so as to determine the current position of the elevator car through the encoder after the elevator is powered on; or a card reader is installed at the car to read data of an Integrated Circuit (IC) card installed at each floor through the card reader to determine the car position. However, the method for determining the position of the elevator car through the encoder needs to install a special speed limiting wheel and an encoder, and the speed limiting wheel and the encoder are expensive, so that the cost of elevator components is increased, namely the problem of high cost exists; the method for determining the position of the elevator car through the card reader needs to install the card reader on the elevator car and install the IC card on each floor, so that the engineering implementation difficulty is high, and if the position of the IC card installed on each floor needs to be adjusted in the installation process, the installation and debugging cost is increased.

Disclosure of Invention

In view of this, embodiments of the present invention provide a method, an apparatus, a system, and a medium for determining a position of an elevator car, so as to reduce cost and engineering implementation difficulty.

In a first aspect, an embodiment of the present invention provides a method for determining a position of an elevator car, including: in the emergency stop process of the elevator, determining the effective duration corresponding to the leveling sensor signal based on the emergency stop signal of the elevator; acquiring position recording data and operation data of the elevator car, wherein the position recording data is recorded according to the flat bed sensor signal; determining current position information of the elevator car according to the valid duration, the position record data and the operation data.

Optionally, the obtaining position record data and operation data of the elevator car comprises: based on the validity duration, the position registration data and/or the operating data are acquired, the position registration data comprising inter-floor position data and/or floor station position data, the operating data comprising operating speed data and/or brake deceleration data.

Optionally, determining current position information of the elevator car according to the validity duration, the position record data, and the operation data includes: when the effective duration is equal to a first time threshold and the running speed data exceeds the preset speed threshold, determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is longer than a first time threshold and shorter than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data, and determining the current floor station of the elevator car according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold, determining the current floor leveling position of the elevator car according to the floor position data, and/or determining the current floor of the elevator car according to the floor position data.

Optionally, the obtaining position record data and operation data of the elevator car based on the validity duration includes: detecting whether the acquired running speed data exceeds a preset speed threshold value within the effective duration; if the running speed data exceeds the preset speed threshold, detecting whether the effective duration is greater than a first time threshold; otherwise, acquiring the interlayer position data and/or the floor station position data of the elevator car; when the effective duration is equal to the first time threshold, acquiring the interlayer position data, the running speed data and the braking deceleration data; and when the effective duration is greater than the first time threshold, acquiring the braking deceleration data.

Optionally, when the valid duration is greater than the first time threshold and less than the second time threshold, the method further includes: acquiring data of a flat-layer partition corresponding to the elevator car; wherein said determining an inter-floor position at which the elevator car is currently located from the active duration and the brake deceleration data comprises: determining car speed data according to the leveling partition data and the effective duration, and determining the current interlayer position of the elevator car according to the car speed data and the braking deceleration data.

Optionally, the determining the effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal includes: receiving an elevator emergency stop signal; detecting whether the leveling sensor signal is valid for the elevator emergency stop signal; and if the leveling sensor signal is valid, determining the valid duration corresponding to the leveling sensor signal according to the current time.

Optionally, the method for determining the position of the elevator car is applied to a computing device of the elevator, the computing device is connected with a backup power supply of the elevator, and the method for determining the position of the elevator car further comprises the following steps: receiving elevator car position information sent by an elevator control system; comparing the current position information of the elevator car with the elevator car position information; and when the current position information of the elevator car is inconsistent with the position information of the elevator car, correcting the current position information of the elevator car according to the position information of the elevator car.

Optionally, the method further comprises: establishing communication connection with an elevator control system; receiving elevator shaft information sent by the elevator control system based on the communication connection, wherein the elevator shaft information comprises landing data, landing height data and/or strong subtraction position data; establishing a car position model according to the elevator shaft information; determining current location information for the elevator car based on the validity duration, the location record data, and the operational data, comprising: inputting the effective duration, the position registration data and the operation data into the car position model, calculating the effective duration, the position registration data and the operation data through the car position model, and determining the current position information of the elevator car based on the calculation result.

In a second aspect, an embodiment of the present invention further provides a method for determining a position of an elevator car, including: when the elevator stops emergently, generating an elevator emergency stop signal corresponding to the elevator car; and sending the elevator emergency stop signal to a computing device of the elevator to trigger the computing device to determine the current position information of the elevator car according to the effective duration corresponding to the leveling sensor signal, the position record data of the elevator car and the operation data, wherein the position record data is generated by the computing device according to the leveling sensor signal.

Optionally, the method for determining the position of the elevator car is applied to an elevator control system, and the method for determining the position of the elevator car further comprises: after the elevator is powered on, establishing communication connection with a computing device of the elevator; reading current position information of the elevator car from the computing device based on the communication connection; and determining the car position of the elevator according to the current position information.

Optionally, the method further comprises: obtaining elevator shaft information and leveling sensor signals; determining elevator car position information according to the elevator shaft information and the leveling sensor signal; sending the elevator car position information to the computing device based on the communication connection; the computing device is used for correcting the current position information of the elevator car according to the position information of the elevator car when the current position information of the elevator car is inconsistent with the position information of the elevator car.

In a third aspect, an embodiment of the present invention further provides a computing device for an elevator, including: the effective duration determining module is used for determining the effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal in the elevator emergency stop process; the data acquisition module is used for acquiring position recording data and running data of the elevator car, wherein the position recording data is recorded according to the flat bed sensor signal; and the current position information determining module is used for determining the current position information of the elevator car according to the effective duration, the position record data and the operation data.

In a fourth aspect, an embodiment of the present invention further provides an elevator control system, including:

the elevator emergency stop signal generating module is used for generating an elevator emergency stop signal corresponding to the elevator car when the elevator is in emergency stop;

the elevator emergency stop signal sending module is used for sending the elevator emergency stop signal to a computing device of the elevator so as to trigger the computing device to determine the current position information of the elevator car according to the effective duration corresponding to the flat sensor signal, the position record data of the elevator car and the operation data, wherein the position record data is generated by the computing device according to the flat sensor signal.

In a fifth aspect, an embodiment of the present invention further provides an elevator system, including: the elevator control system comprises a leveling sensor, a computing device, an elevator control system and a backup power supply connected with the computing device; the output end of the leveling sensor is respectively connected with the computing device and the elevator control system; wherein the backup power source is to power the computing device when power to the elevator system is off; the elevator control system is used for generating an elevator emergency stop signal corresponding to an elevator car when the elevator stops emergently and sending the elevator emergency stop signal to the computing device of the elevator; the computing device is used for determining effective duration corresponding to a leveling sensor signal based on an elevator emergency stop signal in the elevator emergency stop process, and determining current position information of the elevator car according to the effective duration, position record data of the elevator car and operation data, wherein the position record data are recorded according to the leveling sensor signal, and the leveling sensor signal is an output signal of the leveling sensor.

In a sixth aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions for performing the method of determining elevator car position according to the first aspect when executed by a computer processor.

In a seventh aspect, embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are used to perform the method for determining the position of an elevator car according to the second aspect.

The invention determines the effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal in the elevator emergency stop process, and determining the current position information of the elevator car on the basis of the validity duration and the position registration data and operating data of the elevator car, namely, the current position of the elevator car is determined by utilizing the signal of the leveling sensor and combining the position recording data and the operation data of the elevator car, the trouble that a special encoder and a speed limiting wheel need to be installed when an encoder is adopted to determine the position of the elevator car in the prior art is avoided, the problem that the cost for determining the position of the elevator car is high because the encoder and the speed limiting wheel are installed in the prior art is solved, meanwhile, the problem that engineering implementation difficulty is high due to the fact that the card reader needs to be installed and the IC cards are installed on each layer in the prior art is solved, and the beneficial effects of reducing cost and engineering maintenance difficulty are achieved.

Drawings

Fig. 1 is a flowchart of a method for determining a position of an elevator car according to an embodiment of the present invention;

fig. 2 is a flow chart of the steps on the computing device side of an elevator for a method of determining the position of an elevator car in an alternative embodiment of the invention;

fig. 3 is a flowchart of the steps of a method for determining the position of an elevator car according to a second embodiment of the present invention;

fig. 4 is a block diagram of a computing device of an elevator in an embodiment of the invention;

fig. 5 is a block diagram of the structure of an elevator control system in the embodiment of the present invention;

fig. 6 is a schematic view of an elevator system in an embodiment of the invention;

fig. 7 is a schematic view of another elevator system in an embodiment of the invention;

fig. 8 is a schematic view of yet another elevator system in an embodiment of the invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Example one

Fig. 1 is a flowchart of a method for determining a position of an elevator car according to an embodiment of the present invention, which is applicable to determining a position of an elevator car and can be performed by an apparatus for determining a position of an elevator car. The elevator car position determining device can be realized in a software and/or hardware mode, can be independent, can be combined with other devices of the elevator, and can supply power to the leveling sensor for a long time. The leveling sensor can be used to record the floor crossed by the elevator car, for example, a signal can be recorded each time the elevator car crosses the leveling sensor, so that the floor crossed by the elevator car can be determined based on the signal recorded by the leveling sensor. Referring to fig. 1, the determination of the position of the elevator car provided by the embodiment of the present invention may specifically include the following steps:

and step 110, determining the effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal in the elevator emergency stop process.

In this embodiment, when the elevator stops emergently, the elevator master control system may generate an elevator emergency stop signal, and may send the elevator emergency stop signal to the determining device of the elevator car position, so that the determining device of the elevator car position may receive the elevator emergency stop signal, and thus may trigger the determining device of the elevator car position to determine the effective duration corresponding to the leveling sensor signal for the elevator emergency stop signal. The elevator emergency stop signal can be used for triggering an elevator brake to enter a release state so as to tightly hold the motor and realize elevator braking. The leveling sensor signal may refer to a signal output by a leveling sensor, and the effective duration corresponding to the leveling sensor signal may refer to a duration during which the leveling sensor outputs an effective signal.

Further, when an elevator emergency stop signal corresponding to an elevator car is received, the embodiment of the present invention may detect whether a leveling sensor signal is valid for the elevator emergency stop signal, so as to calculate an effective duration corresponding to the leveling sensor signal under the condition that the leveling sensor signal is valid. Therefore, in an optional embodiment of the present invention, the determining the valid duration corresponding to the leveling sensor signal based on the elevator emergency stop signal may specifically include: receiving an elevator emergency stop signal; detecting whether the leveling sensor signal is valid for the elevator emergency stop signal; and if the leveling sensor signal is valid, determining the valid duration corresponding to the leveling sensor signal according to the current time.

Specifically, this embodiment detects the leveling sensor signal that this elevator car corresponds always when the elevator scram in-process, if when the elevator car moves upwards and takes place the scram. When the elevator emergency stop signal is received, whether the leveling sensor signal is effective or not can be judged according to the currently received elevator emergency stop signal, namely whether the leveling sensor signal is an effective signal or not is detected, so that the current time is obtained under the condition that the leveling sensor signal is effective, and the effective duration time corresponding to the leveling sensor signal is determined according to the obtained current time.

And 120, acquiring position record data and operation data of the elevator car, wherein the position record data is recorded according to the flat bed sensor signal.

Specifically, after the effective duration corresponding to the leveling sensor signal is determined, the embodiment may acquire the position record data and the operation data of the elevator car based on the effective duration, so as to determine the current position of the elevator car based on the acquired position record data and the operation data. The recorded position data of the elevator car may include data recorded based on the leveling sensor signal, such as inter-floor position data of the elevator car, and floor position data, which is not limited in this embodiment. The operation data of the elevator car may include various data for determining the operation state of the elevator car, and may include operation speed data, brake reduction speed data, and the like of the elevator car, which is not particularly limited in this embodiment.

Optionally, the obtaining of the position record data and the operation data of the elevator car in this embodiment may specifically include: based on the validity duration, the position registration data and/or the operating data are acquired, the position registration data comprising inter-floor position data and/or floor station position data, the operating data comprising operating speed data and/or brake deceleration data. Wherein the inter-floor position data can be used for determining the inter-floor position of the elevator car, such as the specific position of the elevator car in the elevator shaft. The floor station position data can be used for determining the floor station where the elevator car is currently located, and if the floor station position data is 1, the floor station where the elevator car is currently located can be determined as a first floor station; for another example, when the floor station position data is 2, the floor station where the elevator car is currently located can be determined as a second floor station; when the position data of the floor landing is 3, the floor station where the elevator car is currently located can be determined to be a third floor landing … …, and so on. The operating speed data can be used to determine the operating speed of the elevator car; the braking deceleration data may be used to determine the braking deceleration corresponding to the elevator car, and the braking deceleration data may be a constant data, which may be determined according to the braking performance requirement of the elevator car, and this embodiment is not limited in this respect.

And step 130, determining the current position information of the elevator car according to the effective duration, the position record data and the operation data.

The current position information of the elevator car may include various data for determining the current position of the elevator car, for example, may include elevator landing position data for displaying a floor where the elevator car is currently located, and interlayer position data for determining an interlayer position where the elevator car is currently located, and the like, which is not limited in this embodiment.

Specifically, the embodiment of the invention can determine whether the leveling sensor signal is effective in the emergency stop process of the elevator based on the effective duration corresponding to the leveling sensor signal. If the leveling sensor signal is always effective in the emergency stop process, calculation can be performed according to the finally obtained interlayer position data and the operation speed data to determine the current position information of the elevator car based on the calculated result, for example, the calculated result can be used for determining the current interlayer position of the elevator car, and whether the floor station where the elevator car is located changes can be determined, so that the floor station position data of the elevator car is updated when the floor station where the elevator car is located changes, and the data accuracy can be ensured. If the leveling sensor signal is effective when the running speed data of the elevator car is zero, the elevator car can be determined to be in the leveling position, one can be added to the floor station position data of the elevator car, so that the floor station position data of the elevator car can be updated, the floor position data of the elevator car can be updated based on the updated floor station position data, and the accuracy of the data is guaranteed. If the flat sensor signal is valid at the beginning of the emergency stop, but the flat sensor signal is invalid before the running speed data of the elevator car is zero, the running speed of the elevator car can be determined by utilizing the flat partition data corresponding to the elevator car and the duration of the elevator car passing through the flat partition based on the valid duration corresponding to the flat sensor signal, the specific position of the car between floors can be calculated based on the running speed and the braking deceleration data of the elevator car, namely the current floor position of the elevator car is determined, and then the floor station where the elevator car is located can be determined based on the current floor position of the elevator car, so that the aim of determining the position of the elevator car in real time is fulfilled.

The data of the flat-layer partition plate can be used for representing the length of the flat-layer partition plate, and the flat-layer partition plate can be a baffle plate in an elevator, so that the data of the flat-layer partition plate can be a constant parameter which is fixed and unchangeable, and the specific numerical value of the data of the flat-layer partition plate is not particularly limited in the embodiment.

In conclusion, the technical scheme of the embodiment can determine the effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal in the elevator emergency stop process, and determining the current position information of the elevator car on the basis of the validity duration and the position registration data and operating data of the elevator car, namely, the current position of the elevator car is determined by utilizing the signal of the leveling sensor and combining the position recording data and the operation data of the elevator car, the trouble that a special encoder and a speed limiting wheel need to be installed when an encoder is adopted to determine the position of the elevator car in the prior art is avoided, the problem that the cost for determining the position of the elevator car is high because the encoder and the speed limiting wheel are installed in the prior art is solved, meanwhile, the problem that engineering implementation difficulty is high due to the fact that the card reader needs to be installed and the IC cards are installed on each layer in the prior art is solved, and the beneficial effects of reducing cost and engineering maintenance difficulty are achieved.

On the basis of the above technical solution, optionally, after determining the valid duration corresponding to the leveling sensor signal, the embodiment of the present invention may detect whether the running speed data of the elevator car exceeds the preset speed threshold value within the valid duration, so as to determine whether the braking deceleration data of the elevator car needs to be acquired to determine the current position of the elevator car.

For example, when the preset speed threshold is zero, it may be determined whether the braking deceleration data a of the elevator car needs to be acquired by determining whether the running speed data V of the elevator car is zero or not, or detecting whether the running speed data V of the elevator car exceeds zero. If the running speed data V of the elevator car is zero, that is, when the running speed data V is not more than zero, the current running speed of the elevator car can be determined to be zero, the current interlayer position of the elevator car can be directly determined according to the obtained interlayer position data D0 of the elevator car, and the current floor station of the elevator car can be determined according to the obtained interlayer position data D0 of the elevator car and by combining the station height data of the floors. Similarly, the floor station where the elevator car is currently located may also be directly determined according to the obtained floor station position data of the elevator car, and/or the floor position D where the elevator car is currently located may be determined according to the obtained floor station position data and by combining with the floor height data of the floor, which is not limited in this embodiment. If the running speed data V of the elevator car exceeds zero, the elevator car can be determined to be in the process of emergency stop, and the braking reduction speed data a of the elevator car can be obtained so as to calculate the current position of the elevator car according to the braking reduction speed data a. The interlayer position data D0 may refer to data recorded based on the last received flat layer sensor signal, and may be specifically used to characterize the interlayer position recorded based on the last received flat layer sensor signal.

Further, when the running speed data V of the elevator car exceeds zero, it can be determined whether the inter-floor position data D0 of the elevator car needs to be acquired to determine the current position of the elevator by judging whether the effective duration t1 corresponding to the leveling sensor signal is greater than zero. If the valid duration t1 corresponding to the leveling sensor signal is greater than zero, it can be determined that the leveling sensor signal is valid at the beginning of the emergency stop, and the current inter-floor position D of the elevator car can be calculated according to the acquired braking deceleration data a, for example, the current inter-floor position D of the elevator car can be calculated according to the average speed V of the elevator car passing through the leveling partition and the acquired braking deceleration data a. If the valid duration t1 corresponding to the leveling sensor signal is equal to zero, it can be determined that the leveling sensor signal is invalid all the time in the emergency stop process, and the current inter-floor position D of the elevator car can be calculated according to the finally obtained inter-floor position data D0, the operation speed data V0 and the braking deceleration data a of the elevator car, for example, according to a formula

And (6) performing calculation. The operating speed data V0 can be used, among other things, to characterize the acquired operating speed of the elevator car.

In an optional embodiment of the present invention, the obtaining of the position record data and the operation data of the elevator car based on the valid duration corresponding to the leveling sensor signal may specifically include: detecting whether the acquired running speed data exceeds a preset speed threshold value within the effective duration; if the running speed data exceeds the preset speed threshold, detecting whether the effective duration is greater than a first time threshold, and otherwise, acquiring interlayer position data and/or floor position data of the elevator car; when the effective duration is equal to a first time threshold, acquiring the interlayer position data, the running speed data and the braking deceleration data; and when the effective duration is greater than the first time threshold, acquiring the braking deceleration data. The first time threshold may be used to determine whether the leveling sensor signal is always valid in the emergency stop process, so as to determine whether the current position of the elevator car needs to be determined by acquiring the inter-floor position data and the operating speed data of the elevator car, which is not limited in this embodiment.

For example, when it is detected that the operation speed data of the elevator car does not exceed the preset speed threshold, for example, when the operation speed data is equal to the preset speed threshold, the embodiment of the present invention may obtain the inter-floor position data and/or the floor position data of the elevator car, so as to determine the current position of the elevator car according to the inter-floor position data and/or the floor position data of the elevator car; and when the running speed data of the elevator car exceeds a preset speed threshold, whether the effective duration is greater than a first time threshold can be detected so as to determine whether the current position of the elevator car needs to be determined by acquiring the interlayer position data and the running speed data. If the effective duration is longer than the first time threshold, the braking deceleration data can be obtained, and the current position of the elevator car is determined according to the braking deceleration data and preset length data of the flat-bed partition; if the effective duration is equal to the first time threshold, then interlayer position data, operating speed data, and the braking deceleration data may be obtained to determine the current position of the elevator car according to the obtained interlayer position data, operating speed data, and the braking deceleration data.

In a specific implementation, the method for determining the position of the elevator car provided by this embodiment is applied to a computing device of an elevator, and the computing device of the elevator can communicate with an elevator control system after the elevator is powered on again, so as to correct the locally determined current position information of the elevator car according to the elevator car position information sent by the elevator control system, thereby ensuring the accuracy of position data in the computing device. Optionally, the method for determining the position of the elevator car provided by this embodiment may further include: receiving elevator car position information sent by an elevator control system; comparing the current position information of the elevator car with the elevator car position information; and when the current position information of the elevator car is inconsistent with the position information of the elevator car, correcting the current position information of the elevator car according to the position information of the elevator car. Therefore, the data obtained after correction can be used as the current position information of the elevator car and stored in the local computing device, so that the computing device can determine the current position of the elevator car according to the corrected data in the subsequent processing process, and the data accuracy is ensured.

In a specific implementation, the computing device can receive elevator shaft information such as landing data, standing height data, forced reduction position data and the like of an elevator control system when an elevator normally operates, and can establish a car position model based on the received elevator shaft information, so that the effective duration, the position recording data and the operation data can be subsequently calculated through the car position model to determine the current position of the elevator car. Optionally, the method for determining the position of the elevator car provided by this embodiment may further include: establishing communication connection with an elevator control system; receiving elevator shaft information sent by the elevator control system based on the communication connection; and establishing a car position model according to the elevator shaft information. Therefore, when the current position information of the elevator car is determined, the effective duration corresponding to the leveling sensor signal, the position record data of the elevator car and the operation data can be input into the car position model, so that the effective duration, the position record data and the operation data are calculated through the car position model, and the current position information of the elevator car is determined.

Referring to fig. 2, a flow chart of the steps on the computing device side of an elevator illustrating a method of determining elevator car position in an alternative embodiment of the invention is shown. Specifically, the method for determining the position of the elevator car provided by the embodiment of the invention can be applied to a computing device of an elevator, and specifically can include the following steps:

step 210, establishing a communication connection with an elevator control system.

And step 220, receiving elevator shaft information sent by the elevator control system based on the communication connection.

Specifically, after the installation and debugging of the elevator are completed, the computing device can establish a communication connection with the elevator control system, so that the computing device can communicate with the elevator control system based on the communication connection, such as elevator shaft information sent by the elevator control system. The elevator shaft information may include landing data, landing height data, and/or forced-fall position data, which is not particularly limited in this embodiment.

And step 230, establishing a car position model according to the elevator shaft information.

In this embodiment, after receiving elevator hoistway information sent by an elevator control system, for example, after receiving elevator hoistway information such as landing data, station height data, and strong reduction position data of the elevator control system, the computing device may perform model training using the elevator hoistway information to train a car position computation model that is the same as that of the elevator control system, that is, to establish a car position model that is the same as that of the elevator control system, so that the car position model is subsequently used to determine the current position of the elevator car in real time.

And 240, in the emergency stop process of the elevator, determining the effective duration corresponding to the leveling sensor signal based on the emergency stop signal of the elevator.

In this embodiment, the calculating device can continuously monitor the signal of flat bed sensor output in the elevator scram in-process, if when the elevator scram after the elevator has a power failure, monitor flat bed sensor signal promptly to independently calculate elevator car position based on this flat bed sensor signal. Specifically, when the elevator is stopped emergently, the computing device can receive an elevator emergency stop signal of the elevator, so that the computing device enters an autonomous computing state. In the emergency stop process, the computing device can always detect the leveling sensor signal in an autonomous computing state, and can compute the effective duration of the leveling sensor signal under the condition that the leveling sensor signal is effective, namely, the effective duration corresponding to the sensor signal of the floor is determined, so that the position of the elevator car is determined in real time based on the effective duration.

Based on the validity duration, position registration data and/or the operating data of the elevator car are acquired, step 250.

The position recording data comprises interlayer position data, building landing position data and the like; the operation data includes operation speed data, brake deceleration data, and the like, and the embodiment is not particularly limited thereto.

For example, when the validity duration is zero, such as when the validity duration T1 is equal to the first time threshold T1 and the first time threshold T1 is zero, it may be determined that the leveling sensor signal is always inactive, and then the inter-floor position data D0, the operating speed data V0, and the braking deceleration data a of the elevator car may be obtained to determine the inter-floor position D where the elevator car is currently located and the floor where the elevator car is located according to the obtained inter-floor position data D0, the operating speed data V0, and the braking deceleration data a. And when the effective duration exceeds a first time threshold T1 and is less than a second time threshold T1, obtaining the braking deceleration data of the elevator car, and determining the current interlayer position D and the current floor station of the elevator car according to the braking deceleration data a and preset floor-leveling partition length data D. When the effective duration is equal to or greater than the second time threshold and the running speed data is equal to the preset speed threshold, the interlayer position data can be acquired to determine the current floor leveling position of the elevator car, and/or the current floor of the elevator car is determined according to the acquired floor position data. The second time threshold may be set according to the duration of the elevator car passing through the flat bed separator, such as the length data d of the flat bed separator, which is not limited in this example.

Step 260, determining the current position information of the elevator car according to the effective duration, the position record data and the operation data.

In this embodiment of the present invention, optionally, step 260 may specifically include: inputting the effective duration, the position registration data and the operation data into the car position model, calculating the effective duration, the position registration data and the operation data through the car position model, and determining the current position information of the elevator car based on the calculation result. Specifically, after the effective duration is determined, the effective duration, the acquired position record data and the operation data can be input into a car position model, so that the current position information of the elevator car is output through the car position model.

Further, in this embodiment, determining the current position information of the elevator car according to the valid duration, the position record data, and the operation data may specifically include: when the effective duration is equal to a first time threshold and the running speed data exceeds the preset speed threshold, determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data, and determining the current floor of the elevator car according to the current interlayer position of the elevator car and the position data of the floor station; when the effective duration is longer than a first time threshold and shorter than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data, and determining the current floor station of the elevator car according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold, determining the current floor leveling position of the elevator car according to the floor position data, and/or determining the current floor of the elevator car according to the floor position data.

Exemplary, in combination with the above examples, are validWhen the duration time is equal to a first time threshold and the first time threshold is zero, it can be determined that the leveling sensor signal is invalid all the time, and at this time, according to the last received real-time position data and the operation speed data V, the inter-floor position of the car can be roughly calculated and it is determined that the floor station where the elevator car is currently located is not changed, for example, when the operation speed data exceeds a preset speed threshold, it can be determined according to a formula

Calculations are made wherein the last received interlayer position data D0 may be the received real time position data, V0 may be the last received running speed data, and a may be the brake deceleration.

When the valid duration is equal to or greater than the second time threshold and the operation speed data is equal to the preset speed threshold, that is, when it is detected that the leveling sensor signal is valid until the operation speed is 0 leveling sensor signal or valid, it may be determined that the elevator car is at the leveling position, for example, the leveling position at which the elevator car is currently located may be determined according to the obtained floor position data, and/or, the floor station at which the elevator car is currently located may be determined according to the floor station position data, for example, one may be added to the obtained floor station data, so that the floor station indicated by the floor station data obtained after adding one is determined as the floor station at which the elevator car is currently located.

When the valid duration is greater than the first time threshold and less than the second time threshold, and the operation speed data exceeds the preset speed threshold within the valid duration, that is, when the leveling sensor signal is detected to be valid, and the leveling sensor signal is invalid before the operation speed data is 0, the valid duration T1 corresponding to the stored leveling sensor signal can be calculated, and the current interlayer position D of the elevator car can be determined according to the second time threshold T2 and the braking deceleration data a, for example, the specific position D of the elevator car between the layers can be calculated by using the length D of the leveling partition and the valid duration T1, and the current floor of the elevator car can be determined according to the current interlayer position of the elevator car and the floor position data, for example, the obtained floor data can be increased by one, so that the floor station indicated by the floor station data obtained after adding one is determined as the floor station where the elevator car is currently located.

Further, when the valid duration is equal to or greater than the second time threshold, the method for determining the position of the elevator car provided by the embodiment of the present invention may further include: and acquiring the data of the flat-layer partition corresponding to the elevator car. Wherein determining the current floor position of the elevator car based on the validity duration and the braking deceleration data comprises: determining car speed data according to the leveling partition data and the effective duration, and determining the current interlayer position of the elevator car according to the car speed data and the braking deceleration data.

Specifically, in the embodiment of the present invention, after the effective duration t1 corresponding to the floor sensor signal is obtained through real-time calculation, the floor partition data D may be obtained based on the effective duration t1 corresponding to the floor sensor signal, and the running speed V of the elevator car may be calculated in real time according to the obtained floor partition data D and the duration t passing through the floor partition, for example, according to the formula V ═ D/t, so that the running speed V may be calculated to calculate the specific position D of the elevator car between floors, for example, according to the formula V ═ D/t

Calculations, etc., as this example is not limiting.

It is thus clear that this embodiment can utilize flat bed sensor signal to determine elevator car's current position, has avoided the trouble that prior art need install speed limit wheel and encoder, has saved the installation cost of speed limit wheel and encoder, reaches purpose with low costs, has high practical value, and the installation is simple, and the engineering is maintained easily.

And step 270, receiving the elevator car position information sent by the elevator control system.

Specifically, after the communication connection is established between the computing device and the elevator control system, the computing device in the embodiment of the invention can receive the elevator car position information sent by the elevator control system based on the communication connection, that is, the elevator car position information in the elevator control system can be obtained, so that the current position information of the elevator car obtained by local computation is corrected based on the elevator car position information.

Step 280, comparing the current position information of the elevator car with the elevator car position information.

In particular, the computing device in embodiments of the present invention may compare the locally determined current position information of the elevator car with the received elevator car position information to determine whether the locally determined current position information of the elevator car corresponds to the received elevator car position information. If the locally determined current position information of the elevator car is consistent with the received position information of the elevator car, the locally accurately determined current position of the elevator car can be determined. If the locally determined current position information of the elevator car is inconsistent with the received position information of the elevator car, step 290 may be performed to correct the current position information of the elevator car according to the received position information of the elevator car, so as to ensure data accuracy.

And 290, when the current position information of the elevator car is inconsistent with the position information of the elevator car, correcting the current position information of the elevator car according to the position information of the elevator car.

In summary, the embodiment of the invention can receive elevator shaft information such as landing data, height data, forced reduction position and the like of an elevator control system when an elevator normally operates, can establish a car position model based on the received elevator shaft information, and can receive information such as real-time position, running speed, current landing and the like of an elevator car, thereby ensuring the accuracy of position data in a computing device. In addition, the embodiment of the invention can receive the elevator emergency stop signal, the running state and other running data corresponding to the elevator car, so as to perform data processing based on the received elevator emergency stop signal and/or the running data, for example, when the elevator is in emergency stop, after the contracting brake driving information number is received, the computing device can be enabled to enter the autonomous computing state based on the contracting brake driving information number, and therefore, the computing device can determine the current position of the elevator car based on the effective duration corresponding to the leveling sensor signal in the autonomous computing state.

Example two

Referring to fig. 3, a flowchart illustrating steps of a method for determining a position of an elevator car according to a second embodiment of the present invention is shown, which may specifically include the following steps:

and 310, generating an elevator emergency stop signal corresponding to the elevator car when the elevator is stopped emergently.

Specifically, when the elevator is in emergency stop, the embodiment of the invention can generate an elevator emergency stop signal, so that the elevator brake can enter a release state based on the elevator emergency stop signal to hold the motor tightly, thereby realizing elevator braking.

And 320, sending the elevator emergency stop signal to a computing device of the elevator to trigger the computing device to determine the current position information of the elevator car according to the effective duration corresponding to the flat sensor signal, the position record data of the elevator car and the operation data, wherein the position record data is generated by the computing device according to the flat sensor signal.

In the embodiment, the generated elevator emergency stop signal can be sent to the computing device of the elevator, so that the computing device enters an autonomous computing state according to the elevator emergency stop signal, the current position information of the elevator car is autonomously computed by utilizing a flat sensor signal in the autonomous computing state, the trouble that a special encoder and a speed limiting wheel are required to be installed when the position of the elevator car is determined by adopting an encoder in the prior art is avoided, the problem that the cost for determining the position of the elevator car is high due to installation of the encoder and the speed limiting wheel in the prior art is solved, the problem that the engineering implementation difficulty is high due to installation of a card reader and installation of an IC card in each floor in the prior art is solved, and the beneficial effects of reducing the cost and easiness in engineering maintenance are achieved.

In the implementation, the method for determining the position of the elevator car provided by the embodiment of the invention can be applied to an elevator control system. The elevator control system can establish a communication connection with the computing device of the elevator for communication, such as receiving and/or sending messages, data, etc., based on the established communication connection.

On the basis of the foregoing embodiment, optionally, the method for determining the position of the elevator car provided in the embodiment of the present invention may further include: after the elevator is powered on, establishing communication connection with a computing device of the elevator; reading current position information of the elevator car from the computing device based on the communication connection; and determining the car position of the elevator according to the current position information.

Specifically, when the elevator is in power failure and the elevator is in emergency stop, the computing device continuously monitors the output signal of the leveling sensor and autonomously computes the current position information of the elevator car, namely the current position of the elevator car is autonomously computed in an autonomous computing state. When the elevator is electrified again, the elevator control system and the computing device establish communication connection, and then current position information of the elevator car can be obtained based on the communication connection, namely current information of the elevator car is obtained, so that the elevator can run at normal speed based on the current position of the elevator car.

Further, in the running process of the elevator, the elevator control system can calculate the position of the elevator car according to the information of the elevator shaft and the signal of the leveling sensor. Optionally, the method for determining the position of the elevator car in the embodiment of the present invention may further include: obtaining elevator shaft information and leveling sensor signals; determining elevator car position information according to the elevator shaft information and the leveling sensor signal; based on the communication link, sending the elevator car position information to the computing device. Therefore, when the current position information of the elevator car calculated by the calculating device is inconsistent with the position information of the elevator car, the calculating device can be triggered to correct the locally determined current position information of the elevator car according to the position information of the elevator car, and the accuracy of data is ensured. The computing device is used for correcting the current position information of the elevator car according to the position information of the elevator car when the current position information of the elevator car is inconsistent with the position information of the elevator car.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention.

EXAMPLE III

Referring to fig. 4, there is shown a block diagram of a computing device of an elevator in an embodiment of the present invention. The computing device of the elevator can specifically comprise the following modules:

the effective duration determining module 410 is used for determining effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal in the elevator emergency stop process;

a data acquisition module 420, configured to acquire position recording data and operation data of the elevator car, where the position recording data is recorded according to the leveling sensor signal;

a current position information determining module 430, configured to determine current position information of the elevator car according to the validity duration, the position record data, and the operation data.

On the basis of the above embodiment, optionally, the data obtaining module 420 may be specifically configured to obtain the position record data and/or the operation data based on the validity duration, where the position record data includes inter-floor position data and/or floor station position data, and the operation data includes operation speed data and/or brake deceleration data.

In an alternative embodiment of the present invention, the current location information determining module 430 may include the following sub-modules:

the first determining submodule is used for determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data when the effective duration is equal to a first time threshold and the running speed data exceeds the preset speed threshold, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data;

a second determining submodule, configured to determine, when the valid duration is greater than a first time threshold and smaller than a second time threshold and the running speed data exceeds the preset speed threshold within the valid duration, a current inter-floor position of the elevator car according to the valid duration and the braking deceleration data, and determine, according to the current inter-floor position of the elevator car and the current floor position data, a current floor position of the elevator car;

and the third determining submodule is used for determining the current floor leveling position of the elevator car according to the floor position data and/or determining the current floor position of the elevator car according to the floor position data when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold.

In an optional embodiment of the present invention, the data obtaining module 420 may include the following sub-modules:

the running speed detection sub-module is used for detecting whether the obtained running speed data exceeds a preset speed threshold value within the effective duration;

a duration detection sub-module, configured to detect whether the effective duration is greater than a first time threshold if the operating speed data exceeds the preset speed threshold; otherwise, acquiring the interlayer position data and/or the floor station position data of the elevator car;

a first obtaining sub-module for obtaining the interlayer position data, the running speed data, and the braking deceleration data when the effective duration is equal to the first time threshold;

a second obtaining submodule, configured to obtain the braking deceleration data when the effective duration is greater than the first time threshold.

In an optional embodiment of the invention, when the validity duration is greater than the first time threshold and less than the second time threshold, the determining means of the position of the elevator car may further comprise: and a flat-layer clapboard data module. The flat bed partition data module is used for acquiring the data of the flat bed partition corresponding to the elevator car. Wherein the second determination submodule may include the following units:

a speed data determination unit for determining car speed data from the floor leveling barrier data and the validity duration;

and the interlayer position determining unit is used for determining the current interlayer position of the elevator car according to the car speed data and the braking deceleration data.

In an optional embodiment of the present invention, the valid duration determining module 410 may specifically include:

the signal receiving submodule is used for receiving an elevator emergency stop signal;

the signal detection submodule is used for detecting whether the leveling sensor signal is effective or not aiming at the elevator emergency stop signal;

and the duration determining submodule is used for determining the effective duration corresponding to the flat sensor signal according to the current time if the flat sensor signal is effective.

Furthermore, the determining device of the elevator car in the embodiment of the invention can be used as a calculating device of the elevator, can be an independent device, and can also be combined with other devices of the elevator, for example, the determining device can be integrated with a backup power supply of the elevator, and can supply power to the leveling sensor for a long time, so that the leveling sensor can record signals when the elevator car crosses a leveling partition plate every time, and further can calculate the current position of the elevator car by using the signals of the leveling sensor. Optionally, the elevator car determining apparatus further includes the following modules:

the position information receiving module is used for receiving the position information of the elevator car sent by the elevator control system;

comparing the current position information of the elevator car with the elevator car position information;

and the position information correction module is used for correcting the current position information of the elevator car according to the position information of the elevator car when the current position information of the elevator car is inconsistent with the position information of the elevator car.

Optionally, the elevator car determination apparatus according to the embodiment of the present invention further includes the following modules:

the communication connection establishing module is used for establishing communication connection with the elevator control system;

the elevator shaft information receiving module is used for receiving elevator shaft information sent by the elevator control system based on the communication connection, wherein the elevator shaft information comprises landing data, height data and/or forced reduction position data;

and the model establishing module is used for establishing a car position model according to the elevator shaft information.

The current location information determining module 430 may specifically include the following sub-modules:

an input submodule for inputting the validity duration, the position record data and the operational data into the car position model;

a determination submodule for calculating the validity duration, the position record data and the operating data by means of the car position model and for determining current position information of the elevator car on the basis of the calculation result.

In a specific implementation, the elevator car determining device implemented by the invention can execute any one of the methods provided in the first embodiment of the invention, and has corresponding functional modules and beneficial effects for executing the method.

Example four

Referring to fig. 5, there is shown a block diagram of an elevator control system in an embodiment of the present invention. The elevator control system may specifically comprise the following modules:

the elevator emergency stop signal generating module 510 is configured to generate an elevator emergency stop signal corresponding to an elevator car when the elevator is in emergency stop;

and the elevator emergency stop signal sending module 520 is used for sending the elevator emergency stop signal to a computing device of the elevator so as to trigger the computing device to determine the current position information of the elevator car according to the effective duration corresponding to the flat sensor signal, the position record data of the elevator car and the operation data.

Wherein the position record data is generated by a computing device from the leveling sensor signal.

On the basis of the above embodiment, the elevator control system of the embodiment of the present invention further includes the following modules:

the communication connection module is used for establishing communication connection with a computing device of the elevator after the elevator is powered on;

a position information reading module for reading current position information of the elevator car from the computing device based on the communication connection;

and the car position determining module is used for determining the car position of the elevator according to the current position information.

In an optional embodiment of the invention, the elevator control system further comprises the following modules:

the acquisition module is used for acquiring elevator shaft information and the leveling sensor signal;

the elevator car position information determining module is used for determining elevator car position information according to the elevator shaft information and the leveling sensor signal;

and the car position information sending module is used for sending the elevator car position information to the computing device based on the communication connection.

The computing device is used for correcting the current position information of the elevator car according to the position information of the elevator car when the current position information of the elevator car is inconsistent with the position information of the elevator car.

In a specific implementation, the elevator control system implemented by the invention can execute any method provided in the second embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.

EXAMPLE five

Referring to fig. 6, a schematic diagram of an elevator system in an embodiment of the present invention is shown. The elevator system 600 may include: a leveling sensor 610, a computing device 620, an elevator control system 630, and a backup power source 640 connected to the computing device 620. The outputs of the leveling sensor 610 are connected to the computing device 620 and the elevator control system 630, respectively. Wherein the backup power source 640 is used to power the computing device 620 when power to the elevator system 600 is off; the elevator control system 630 is configured to generate an elevator emergency stop signal corresponding to an elevator car when the elevator is in emergency stop, and send the elevator emergency stop signal to a computing device of the elevator; the computing device 620 is configured to determine an effective duration corresponding to a leveling sensor signal after receiving an elevator emergency stop signal corresponding to an elevator car, and determine current position information of the elevator car according to the effective duration, position record data of the elevator car, and operation data, wherein the position record data is recorded according to the leveling sensor signal, and the leveling sensor signal is an output signal of the leveling sensor 610.

In a specific implementation, the elevator control system 630 can be implemented as a subsystem of the elevator system 600, and during elevator operation, the position of the elevator car can be calculated according to the information of the elevator shaft and the output signal of the leveling sensor 610.

The backup power supply 640 may be designed together with the computing device 620 or separately, which is not limited in this embodiment. The backup power supply 640 may be used exclusively for the central computing device of the present embodiment, or may be used for emergency lights and interphones of elevators. Specifically, the design of the backup power supply 640 requires consideration of the hold time. When the computing device 620, the elevator emergency light power supply and the intercom power supply share the backup power supply, under the condition that the emergency light and the intercom rescue requirements and standards are met, the output of the backup power supply 640 corresponding to the emergency light and the intercom rescue can be cut off when the electric quantity is low, and part of the electric quantity is reserved for the computing device 620 to use. When the power level is low, the computing device 620 can save the current state and set the power loss flag so that when the elevator system 600 is powered back up, the elevator control system 630 detects the power loss flag and can start the elevator in a conventional manner.

The computing device 620 can be designed with low power consumption, so that the position of the elevator car can be monitored and computed for a long time, and the requirement of long rescue time is met.

Further, as shown in fig. 7, the elevator system 600 in this embodiment may also include a system power supply 710, a system low voltage power supply 720, and other components 730. Wherein the computing device 620 may be an electronic board in the elevator system 600 and may be integrated with the backup power supply 640 to form a backup power supply computing device 740. The backup power source computing device 740 may be connected to the system power source 710 and the elevator control system 630. The system power supply 710 may power and charge the back-up computing device 740, and the back-up computing device 740 may power the leveling sensor 610. The backup power computing device 740 has a backup power source, and thus can supply power to the leveling sensor for a long time and can maintain the computing device to operate normally for a long time. As shown in fig. 7, a backup power computing device 740 may be connected to the leveling sensor 610 through a power shunt module 750 to provide power to the leveling sensor 610 when the system low voltage power supply 720 is powered down. Of course, the backup power calculating device 740 may be directly connected to the level sensor 610 to supply power to the level sensor 610, as shown in fig. 8, and the present embodiment is not particularly limited to the connection relationship between the backup power calculating device 740 and the level sensor 610.

EXAMPLE seven

On the basis of the above embodiments, the present invention further provides a storage medium containing computer executable instructions, which when executed by a computer processor, are used for executing the method for determining the position of an elevator car as described in any of the above embodiments. For example, the computer executable instructions, when executed by the computer processor, are for performing the method of determining elevator car position in the first embodiment described above. As another example, the computer executable instructions, when executed by the computer processor, are for performing the method of determining elevator car position in embodiment two above.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, and the computer software product may be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes instructions for enabling a computer device (which may be a robot, a personal computer, a server, or a network device) to execute the method for determining the position of the elevator car according to any embodiment of the present invention.

It should be noted that, in the above apparatus and system implementation, each unit and each module included in the apparatus and system implementation are only divided according to functional logic, but are not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method of determining a position of an elevator car, comprising:

in the emergency stop process of the elevator, determining the effective duration corresponding to the leveling sensor signal based on the emergency stop signal of the elevator;

acquiring position recording data and operation data of the elevator car, wherein the position recording data is recorded according to the flat bed sensor signal;

determining current position information of the elevator car according to the effective duration, the position record data and the operation data;

wherein the position registration data comprises inter-floor position data and/or floor position data, the operation data comprises operation speed data and/or brake deceleration data, and the determining of the current position information of the elevator car from the validity duration, the position registration data and the operation data comprises:

when the effective duration is equal to a first time threshold and the running speed data exceeds a preset speed threshold, determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data;

when the effective duration is longer than a first time threshold and shorter than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data, and determining the current floor station of the elevator car according to the current interlayer position of the elevator car and the floor station position data;

when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold, determining the current floor leveling position of the elevator car according to the floor position data, and/or determining the current floor of the elevator car according to the floor position data.

2. The method of determining the position of an elevator car of claim 1, wherein the obtaining position record data and operational data for the elevator car comprises:

based on the validity duration, the position record data and/or the operational data are acquired.

3. The method of determining elevator car position of claim 2, wherein said obtaining position record data and operational data for the elevator car based on the validity duration comprises:

detecting whether the acquired running speed data exceeds a preset speed threshold value within the effective duration;

if the running speed data exceeds the preset speed threshold, detecting whether the effective duration is greater than a first time threshold; otherwise, acquiring the interlayer position data and/or the floor station position data of the elevator car;

when the effective duration is equal to the first time threshold, acquiring the interlayer position data, the running speed data and the braking deceleration data;

and when the effective duration is greater than the first time threshold, acquiring the braking deceleration data.

4. The method of determining elevator car position of claim 1, wherein when the validity duration is greater than a first time threshold and less than a second time threshold, further comprising:

acquiring data of a flat-layer partition corresponding to the elevator car;

wherein said determining an inter-floor position at which the elevator car is currently located from the active duration and the brake deceleration data comprises: determining car speed data according to the leveling partition data and the effective duration, and determining the current interlayer position of the elevator car according to the car speed data and the braking deceleration data.

5. The method of determining elevator car position according to any of claims 1 to 4, wherein said determining a valid duration for the leveling sensor signal based on the elevator scram signal comprises:

receiving an elevator emergency stop signal;

detecting whether the leveling sensor signal is valid for the elevator emergency stop signal;

and if the leveling sensor signal is valid, determining the valid duration corresponding to the leveling sensor signal according to the current time.

6. The method for determining the position of an elevator car according to any one of claims 1 to 4, wherein the method for determining the position of an elevator car is applied to a computing device of an elevator, the computing device being connected to a backup power source of the elevator, and the method for determining the position of an elevator car further comprises:

receiving elevator car position information sent by an elevator control system;

and when the current position information of the elevator car is inconsistent with the position information of the elevator car, correcting the current position information of the elevator car according to the position information of the elevator car.

7. The method of determining elevator car position of claim 6, further comprising:

establishing communication connection with an elevator control system;

receiving elevator shaft information sent by the elevator control system based on the communication connection, wherein the elevator shaft information comprises landing data, landing height data and/or strong subtraction position data;

establishing a car position model according to the elevator shaft information;

determining current location information for the elevator car based on the validity duration, the location record data, and the operational data, comprising: inputting the effective duration, the position registration data and the operation data into the car position model, calculating the effective duration, the position registration data and the operation data through the car position model, and determining the current position information of the elevator car based on the calculation result.

8. A method for determining the position of an elevator car, characterized in that the method for determining the position of an elevator car is applied to an elevator control system, and comprises:

when the elevator is stopped emergently, generating an elevator emergency stop signal;

sending the elevator emergency stop signal to a computing device of the elevator to trigger the computing device to determine the current position information of the elevator car according to the effective duration corresponding to the flat sensor signal, the position record data of the elevator car and the operation data;

wherein the position registration data is generated by a calculation device from the leveling sensor signal, the position registration data comprises inter-floor position data and/or landing position data, the operational data comprises operational speed data and/or brake deceleration data, the calculation device is configured to determine current position information of the elevator car from the validity duration, the position registration data and the operational data, and comprises: when the effective duration is equal to a first time threshold and the running speed data exceeds a preset speed threshold, determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is longer than a first time threshold and shorter than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data, and determining the current floor station of the elevator car according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold, determining the current floor leveling position of the elevator car according to the floor position data, and/or determining the current floor of the elevator car according to the floor position data.

9. The method of determining elevator car position of claim 8, further comprising:

after the elevator is powered on, establishing communication connection with a computing device of the elevator;

reading current position information of the elevator car from the computing device based on the communication connection;

and determining the car position of the elevator according to the current position information.

10. The method of determining elevator car position of claim 9, further comprising:

obtaining elevator shaft information and leveling sensor signals;

determining elevator car position information according to the elevator shaft information and the leveling sensor signal;

sending the elevator car position information to the computing device based on the communication connection;

and the computing device is also used for correcting the current position information of the elevator car according to the position information of the elevator car when the current position information of the elevator car is inconsistent with the position information of the elevator car.

11. A computer device of an elevator, comprising:

the effective duration determining module is used for determining the effective duration corresponding to the leveling sensor signal based on the elevator emergency stop signal in the elevator emergency stop process;

the data acquisition module is used for acquiring position recording data and running data of the elevator car, wherein the position recording data is recorded according to the flat bed sensor signal;

a current position information determining module for determining the current position information of the elevator car according to the effective duration, the position record data and the operation data;

wherein the position record data comprises inter-floor position data and/or floor station position data, the operation data comprises operation speed data and/or brake deceleration data, and the current position information determining module comprises: a first determination submodule, a second determination submodule and a third determination submodule;

the first determining submodule is used for determining the current interlayer position of the elevator car according to the interlayer position data, the operation speed data and the braking deceleration data when the effective duration is equal to a first time threshold and the operation speed data exceeds the preset speed threshold, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data;

the second determining submodule is used for determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data when the effective duration is greater than a first time threshold and less than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, and determining the current floor position of the elevator car according to the current interlayer position of the elevator car and the floor position data;

the third determining submodule is used for determining the current floor leveling position of the elevator car according to the floor position data and/or determining the current floor position of the elevator car according to the floor position data when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold.

12. An elevator control system, comprising:

the elevator emergency stop signal sending module is used for sending the elevator emergency stop signal to a computing device of the elevator so as to trigger the computing device to determine the current position information of the elevator car according to the effective duration corresponding to the flat sensor signal, the position record data of the elevator car and the operation data, wherein the position record data is generated by the computing device according to the flat sensor signal;

the position registration data comprises inter-floor position data and/or landing position data, the operating data comprises operating speed data and/or brake deceleration data, and the calculating means is configured to determine current position information of the elevator car from the validity duration, the position registration data and the operating data, comprising: when the effective duration is equal to a first time threshold and the running speed data exceeds a preset speed threshold, determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is longer than a first time threshold and shorter than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data, and determining the current floor station of the elevator car according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold, determining the current floor leveling position of the elevator car according to the floor position data, and/or determining the current floor of the elevator car according to the floor position data.

13. An elevator system, comprising: the elevator control system comprises a leveling sensor, a computing device, an elevator control system and a backup power supply connected with the computing device;

the output end of the leveling sensor is respectively connected with the computing device and the elevator control system;

wherein the backup power source is to power the computing device when power to the elevator system is off;

the elevator control system is used for generating an elevator emergency stop signal corresponding to an elevator car when the elevator stops emergently and sending the elevator emergency stop signal to the computing device of the elevator;

the computing device is used for determining the effective duration corresponding to the leveling sensor signal after receiving an elevator emergency stop signal corresponding to an elevator car, and determining the current position information of the elevator car according to the effective duration, the position record data and the operation data of the elevator car;

wherein the position record data is recorded according to the leveling sensor signal, the leveling sensor signal is an output signal of the leveling sensor, the position record data comprises inter-floor position data and/or floor station position data, the operation data comprises operation speed data and/or brake deceleration data, and the determining of the current position information of the elevator car according to the effective duration, the position record data and the operation data comprises: when the effective duration is equal to a first time threshold and the running speed data exceeds a preset speed threshold, determining the current interlayer position of the elevator car according to the interlayer position data, the running speed data and the braking deceleration data, and determining the floor station according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is longer than a first time threshold and shorter than a second time threshold and the running speed data exceeds the preset speed threshold within the effective duration, determining the current interlayer position of the elevator car according to the effective duration and the braking deceleration data, and determining the current floor station of the elevator car according to the current interlayer position of the elevator car and the floor station position data; when the effective duration is equal to or greater than a second time threshold and the running speed data is equal to the preset speed threshold, determining the current floor leveling position of the elevator car according to the floor position data, and/or determining the current floor of the elevator car according to the floor position data.

14. A storage medium containing computer executable instructions for performing the method of determining elevator car position according to any of claims 1-7 when executed by a computer processor.

15. A storage medium containing computer executable instructions, which when executed by a computer processor, is for performing the method of determining elevator car position according to any of claims 8-10.