CN109502444B - Detection system and detection method for door closing abnormity of elevator and elevator - Google Patents
Detection system and detection method for door closing abnormity of elevator and elevator Download PDFInfo
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- CN109502444B CN109502444B CN201910004951.9A CN201910004951A CN109502444B CN 109502444 B CN109502444 B CN 109502444B CN 201910004951 A CN201910004951 A CN 201910004951A CN 109502444 B CN109502444 B CN 109502444B
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- door lock
- elevator
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- lock signal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
- B66B13/146—Control systems or devices electrical method or algorithm for controlling doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
Abstract
The embodiment of the invention discloses a detection system and a detection method for abnormal door closing of an elevator and the elevator, wherein the detection system comprises a safety loop, a door lock switch module, a main control module and a door system provided with an encoder, the door lock switch module is connected with the safety loop and outputs a door lock signal according to the door opening and closing state of the elevator, the door system outputs a code identifier according to the position of a door detected by the encoder, the main control module is respectively connected with the door lock switch module and the door system, the main control module determines whether the door of the elevator is abnormal door closing according to the door lock signal and the code identifier, and controls the elevator to stop running and generate fault information when the door closing abnormality is determined. In the embodiment of the invention, the encoder is an original device in the elevator door, the position of the elevator door can be determined through the encoding identification output by the encoder without adding an additional device, and the main control module can determine whether the elevator door is abnormally closed by combining the door lock signal and the encoding identification, so that the cost of the elevator is reduced under the condition of ensuring the safety of the elevator.
Description
Technical Field
The embodiment of the invention relates to the technical field of elevators, in particular to a system and a method for detecting door closing abnormity of an elevator and the elevator.
Background
As building technology advances, the height of buildings becomes higher and higher, and high-rise buildings need to be equipped with a vertical elevator to rapidly transport users to a designated floor.
At present, under the national standard requirement, an elevator is generally provided with a door lock bypass, and an independent sensor is required to be arranged to detect that a door is closed in place.
Disclosure of Invention
The embodiment of the invention provides a system for detecting door closing abnormity of an elevator, a method for detecting door closing abnormity of the elevator and the elevator, and aims to solve the problem that the cost of the elevator is high because an independent sensor needs to be added to detect that the elevator is closed in place in the prior art.
In a first aspect, an embodiment of the present invention provides a system for detecting door closing abnormality of an elevator, including a safety circuit, a door lock switch module, a main control module, and a door system provided with an encoder;
the door lock switch module is connected with the safety loop and outputs a door lock signal according to the opening and closing state of the elevator door;
the ladder door system outputs a coded identification according to the position of the ladder door detected by the encoder;
the main control module is respectively connected with the door lock switch module and the elevator door system, determines whether the door of the elevator is abnormally closed according to the door lock signal output by the door lock switch module and the code identification output by the elevator door system, and generates a control instruction to control the elevator to stop running and generate fault information when determining that the door is abnormally closed.
Optionally, the elevator comprises a main door, the door lock switch module comprises a main door lock switch, and the elevator door system comprises a main door system provided with an encoder;
the safety loop is connected with the main control module through the main door lock switch, the main door lock switch outputs an effective door lock signal when the main door is closed in place, and outputs an ineffective door lock signal when the main door is not closed in place;
and the encoder of the main door system outputs a valid main door code identification when detecting that the position of the main door is in the door-closing in-place position, and outputs an invalid main door code identification when detecting that the position of the main door is not in the door-closing in-place position.
Optionally, the main control module is configured to:
determining that the door of the elevator is closed abnormally when the received door lock signal is determined to be an effective door lock signal and the received main door code identification is determined to be an invalid main door code identification within a preset time length;
or;
and when the received door lock signal is determined to be an invalid door lock signal and the received main door code identification is determined to be an effective main door code identification within a preset time length, determining that the door of the elevator is abnormally closed.
Optionally, the elevator further comprises an auxiliary door, the door lock switch module further comprises an auxiliary door lock switch, and the elevator door system further comprises an auxiliary door system provided with an encoder;
the auxiliary door lock switch is connected between the main door lock switch and the main control module, the door lock switch module outputs an effective door lock signal when the main door and the auxiliary door are both closed in place, and the door lock switch module outputs an ineffective door lock signal when at least one of the main door and the auxiliary door is not closed in place;
and the encoder of the auxiliary door system outputs a valid auxiliary door code identification when detecting that the position of the auxiliary door is in the door-closing in-place position, and outputs an invalid auxiliary door code identification when detecting that the position of the auxiliary door is not in the door-closing in-place position.
Optionally, the main control module is configured to:
after a door opening instruction is received, determining that the door of the elevator is closed abnormally when the door lock signal is determined to be an invalid door lock signal and the main door code identifier is a valid main door code identifier within a preset time length;
alternatively, the first and second electrodes may be,
and when the door lock signal is determined to be an effective door lock signal and the main door code identification is an invalid main door code identification within a preset time length, determining that the door of the elevator is abnormally closed.
Optionally, the main control module is further configured to:
after a door closing instruction is received, determining that a main door code identifier is an effective main door code identifier within a preset time length, and if a door lock signal is effective door lock information, determining that the door of the elevator is abnormally closed;
after the main door code identification is determined to be the effective main door code identification within the preset time length, if the auxiliary door code identification which is effective within the preset time length is received and the door lock signal is an invalid door lock signal, determining that the door of the elevator is closed abnormally.
Optionally, the door system is further configured to:
outputting a door lock position coding identifier when the encoder detects that the elevator door is positioned at the position of the door lock switch module;
the main control module is further configured to:
and determining whether the encoder is abnormal or not according to the door lock signal output by the door lock switch module, the code identifier output by the ladder door system and the door lock position code identifier.
In a second aspect, an embodiment of the present invention provides a method for detecting an elevator door closing abnormality, where the method is applied to a system for detecting an elevator door closing abnormality according to any embodiment of the present invention, and the method includes:
receiving a door lock signal and a code identifier, wherein the door lock signal is a signal output by a door lock switch module according to the opening and closing state of a door of an elevator, and the code identifier is information output by a door system according to the position of the door detected by an encoder;
determining whether the door of the elevator is abnormally closed or not according to the door lock signal and the code identification;
and generating a control command to control the elevator to stop running and generate fault information when the door closing abnormity is determined.
Optionally, the door lock signal includes valid and invalid door lock signals, the code identifier includes valid and invalid main door code identifiers, and determining whether a door of the elevator is abnormally closed according to the door lock signal and the code identifier includes:
determining that the door of the elevator is closed abnormally when the received door lock signal is determined to be an effective door lock signal and the received main door code identification is determined to be an invalid main door code identification within a preset time length;
or;
and when the received door lock signal is determined to be an invalid door lock signal and the received main door code identification is determined to be an effective main door code identification within a preset time length, determining that the door of the elevator is abnormally closed.
Optionally, the door lock signal includes valid and invalid door lock signals, the code identifier includes valid and invalid main door code identifiers and valid and invalid auxiliary door code identifiers, and the determining whether the door of the elevator is abnormally closed according to the door lock signal and the code identifiers includes:
after a door opening instruction is received, determining that the door of the elevator is closed abnormally when the door lock signal is determined to be an invalid door lock signal and the main door code identifier is a valid main door code identifier within a preset time length;
alternatively, the first and second electrodes may be,
and when the door lock signal is determined to be an effective door lock signal and the main door code identification is an invalid main door code identification within a preset time length, determining that the door of the elevator is abnormally closed.
Optionally, the determining whether a door of the elevator is closed abnormally according to the door lock signal and the coded identifier further includes:
after receiving a door closing instruction, if the main door code identification is determined to be effective in a preset time length and the door lock signal is effective door lock information, determining that the door of the elevator is abnormally closed;
after the main door code identification is determined to be the effective main door code identification within the preset time length, if the auxiliary door code identification which is effective within the preset time length is received and the door lock signal is an invalid door lock signal, determining that the door of the elevator is closed abnormally.
Optionally, the method further comprises:
determining whether the encoder is abnormal or not according to the door lock signal output by the door lock switch module, the code identifier output by the ladder door system and the door lock position code identifier;
the door lock position code identification is a code identification output by an encoder when the position of the door lock switch module is detected.
In a third aspect, an embodiment of the present invention provides an elevator, which includes the system for detecting an abnormal door closing state of an elevator according to any embodiment of the present invention.
The system for detecting the abnormal door closing of the elevator comprises a safety loop, a door lock switch module, a main control module and a door system provided with an encoder, wherein the door lock switch module is connected with the safety loop and outputs a door lock signal according to the door opening and closing state of the elevator, the door system outputs a code identifier according to the position of a door detected by the encoder, the main control module is respectively connected with the door lock switch module and the door system, the main control module determines whether the door of the elevator is abnormal door closing according to the door lock signal output by the door lock switch module and the code identifier output by the door system, and generates a control command to control the elevator to stop running and generate fault information when the door closing is determined to be abnormal. In the embodiment of the invention, the encoder is an original component in the elevator door, the position of the elevator door can be determined through the encoding identifier output by the encoder without adding extra devices, and the system can determine whether the elevator door is abnormally closed by combining the door lock signal and the encoding identifier, so that the cost of the elevator is reduced under the condition of ensuring the safety of the elevator.
Drawings
Fig. 1 is a schematic view of a system for detecting door closing abnormality of an elevator according to an embodiment of the present invention;
fig. 2 is a schematic view of a system for detecting door closing abnormality of an elevator according to a second embodiment of the present invention;
FIG. 3 is a schematic view of the time and distance that the doors of the ladder of the embodiment of the present invention travel;
fig. 4 is a schematic view of a system for detecting door closing abnormality of an elevator according to a third embodiment of the present invention;
fig. 5 is a flowchart of a method for detecting door closing abnormality of an elevator according to a fourth embodiment of the present invention;
fig. 6 is a flowchart of a method for detecting door closing abnormality of an elevator according to a fifth embodiment of the present invention;
fig. 7 is a flowchart of a method for detecting an abnormal door closing state of an elevator according to a sixth embodiment of the present 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.
Fig. 1 is a schematic view of a system for detecting an abnormal door closing state of an elevator according to an embodiment of the present invention, and as shown in fig. 1, the system for detecting an abnormal door closing state of an elevator according to an embodiment of the present invention includes a safety circuit 10, a door lock switch module 20, a main control module 30, and a door system 40 provided with an encoder.
Specifically, the elevator comprises a car and a hall door, wherein the car is provided with the car door, and the hall door can be driven to be opened and closed through the car door, wherein when the elevator is a single-door elevator, the hall door comprises a hall door main door, and the car door comprises a car door main door; when the elevator is double-door, the hall door comprises a hall door main door and a hall door auxiliary door, and the car door comprises a car door main door and a car door auxiliary door.
The safety circuit 10 may be a module that controls the operation stop of the elevator when the door lock switch in the door lock switch module 20 is turned off.
The door lock switch module 20 is connected to the safety loop 10, wherein the door lock switch module 20 may include a plurality of door locks connected in series, for example, when the elevator is a single-door elevator, the door lock switch module 20 includes a hall door main door lock disposed on a hall door and a car door main door lock disposed on a car door main door, and the door lock switch module 20 is a hall door main door lock and a car door main door lock connected in series; when the elevator is a double door, the door lock switch module 20 comprises a hall door main door lock and a hall door auxiliary door lock which are arranged on the hall door, and a car door main door lock and a car door auxiliary door lock which are arranged on the car door, the door lock switch module 20 is the hall door main door lock, the hall door auxiliary door lock, the car door main door lock and the car door auxiliary door lock which are connected in series, the door lock switch module 20 outputs a door lock signal according to the switching state of the elevator door, for example, when all the hall doors are closed in place and the car doors are closed in place, the main control module 30 connected with the door lock switch module 20 can receive an effective door lock signal; when any one of all the hall doors and car doors is not closed in place, the main control module 30 connected to the door lock switch module 20 may receive an invalid door lock signal, and in practical applications, the validity and invalidity of the door lock signal may be represented by a high level and a low level, for example, the high level may represent a valid door lock signal, and the low level may represent an invalid door lock signal.
The door system 40 is provided on the car and provided with an encoder, the door system 40 comprising a main door system if the elevator is single-door open, and the door system 40 comprising a main door system and a sub-door system if the elevator is double-door open. The door system 40 is provided with a door machine to drive the door to open or close, the door machine is usually provided with a rotary encoder to detect a rotation parameter of the door machine through the encoder to determine the position of the door, so as to generate a corresponding code identifier, specifically, an effective code identifier is generated when the door is closed in place, otherwise, an invalid code identifier is generated.
The main control module 30 is respectively connected to the door lock switch module 20 and the door system 40, the main control module 30 determines whether the doors of the elevator are closed abnormally according to the door lock signal output by the door lock switch module 20 and the code identifier output by the door system 40, and generates a control command to control the elevator to stop running and generate fault information when determining that the doors are closed abnormally, specifically, when one of the door lock signal and the code identifier is invalid and the other one is valid, it determines that the doors are closed abnormally, the control command is generated to control the elevator to stop running and generate fault information.
In the embodiment of the invention, the encoder is an original component in the elevator door, the position of the elevator door can be determined through the encoding identifier output by the encoder without adding extra devices, and the system can determine whether the elevator door is abnormally closed by combining the door lock signal and the encoding identifier, so that the cost of the elevator is reduced under the condition of ensuring the safety of the elevator.
Fig. 2 is a schematic view of a system for detecting an abnormal door closing state of an elevator according to a second embodiment of the present invention, and as shown in fig. 2, the system for detecting an abnormal door closing state of an elevator according to the second embodiment of the present invention includes a safety circuit 10, a door lock switch module 20, a main control module 30, and a door system 40 provided with an encoder.
On the basis of the first embodiment, the elevator of the embodiment of the invention comprises main doors, the main doors comprise a hall door main door and a car door main door, the door lock switch module 20 comprises a main door lock switch, the main door lock switch comprises a hall door main door lock 201 and a car door main door lock 202, wherein the hall door main door lock 201 and the car door main door lock 202 are connected to form the door lock switch module 20, and the elevator door system 40 comprises a main door system 403 provided with a main door encoder 401.
As shown in fig. 2, in the embodiment of the present invention, the safety circuit 10 is connected to the main control module 30 through a main door lock switch, specifically, the safety circuit 10, the hall door main door lock 201, the car door main door lock 202, and the main control module 30 are sequentially connected in series, the main door lock switch outputs an effective door lock signal when the main door is closed in place, and outputs an ineffective door lock signal when the main door is not closed in place, for example, the hall door main door lock 201 and the car door main door lock 202 both lock in place, and outputs an ineffective door lock signal when at least one of the hall door main door lock 201 and the car door main door lock 202 is not locked in place.
The main door encoder 401 of the main door system 403 outputs a valid main door code identifier when detecting that the position of the main door is in the door closing in-place position, and outputs an invalid main door code identifier when detecting that the position of the main door is not in the door closing in-place position, specifically, the main door encoder 401 is arranged on the door machine of the car door main door, and when the main door encoder 401 on the car door main door detects that the position of the car door main door is in the door closing in-place position, outputs the valid main door code identifier, otherwise, outputs the invalid main door code identifier.
The main control module 30 determines that the doors of the elevator are closed abnormally when determining that the received door lock signal is an effective door lock signal and determining that the received main door code identifier is an invalid main door code identifier within a preset time period, or determines that the doors of the elevator are closed abnormally when determining that the received door lock signal is an invalid door lock signal and determining that the received door code identifier is an valid main door code identifier within a preset time period.
For example, the valid main door code flag of the main door in the closed position is a, and the main control module 30 detects whether the door lock signal and the door state represented by the code flag are consistent, specifically as follows:
1. if the door lock signal received by the main control module is a valid door lock signal, and the received main door code identification is not A within 300ms, determining that the door of the elevator is closed abnormally, for example, the door lock is adhered or the encoder slips, and controlling the elevator to stop running and generating fault information to ensure safety.
2. If the door lock signal received by the main control module is an invalid door lock signal, and the received main door code marks are all A within 300ms, determining that the door of the elevator is closed abnormally, such as door lock adhesion or encoder slippage possibly, controlling the elevator to stop running and generating fault information.
As shown in fig. 3, the preset time duration may be calculated by a time T from the door closing terminal to the hall door lock, and assuming that the distance from the door closing terminal to the hall door lock is 15mm, the time T from the door closing terminal to the hall door lock of a certain model of the ladder door system is about 200 milliseconds according to the operation curve integral operation, a certain margin is taken, and the preferable setting T is 300ms, but in actual application, a technician may obtain the preset time duration T after debugging according to different models of the ladder door systems.
In the embodiment of the invention, the elevator comprises a main door, the encoder is an original part of the main door of the elevator, no additional device is needed, and the main control module determines that the door of the elevator is closed abnormally when determining that the received door lock signal is an effective door lock signal and determining that the received main door code identifier is an invalid main door code identifier within the preset time length, or when determining that the received door lock signal is an invalid door lock signal and determining that the received door code identifier is an effective main door code identifier within the preset time length, thereby reducing the cost of the elevator under the condition of ensuring the safety of the elevator.
Fig. 4 is a schematic view of a system for detecting an abnormal door closing state of an elevator according to a third embodiment of the present invention, and as shown in fig. 4, the system for detecting an abnormal door closing state of an elevator according to the third embodiment of the present invention includes a safety circuit 10, a door lock switch module 20, a main control module 30, and a door system 40 provided with an encoder.
On the basis of the second embodiment, the elevator of the embodiment of the invention further comprises an auxiliary door, wherein the auxiliary door comprises a hall door auxiliary door and a car door auxiliary door, correspondingly, the door lock switch module 20 further comprises an auxiliary door lock switch, the auxiliary door lock switch comprises a hall door auxiliary door lock 203 and a car door auxiliary door lock 204, and the elevator door system 40 further comprises an auxiliary door system 404 provided with an auxiliary door encoder 402.
As shown in fig. 4, in the embodiment of the present invention, the safety circuit 10 is connected to the main control module 30 through a main door lock switch and an auxiliary door lock switch, specifically, the safety circuit 10, the hall door main door lock 201, the car door main door lock 202, the hall door auxiliary door lock 203, the car door auxiliary door lock 204, and the main control module 30 are sequentially connected in series, and output an effective door lock signal when the main door and the auxiliary door are closed in place, and output an invalid door lock signal when the main door and the auxiliary door are not closed in place, for example, when the hall door main door lock 201, the car door main door lock 202, the hall door auxiliary door lock 203, and the car door auxiliary door lock 204 are all locked in place, the main control module 30 receives the effective door lock signal; when at least one of the hall door main lock 201, the car door main lock 202, the hall door auxiliary lock 203 and the car door auxiliary lock 204 is unlocked and paid in place, the main control module 30 receives an invalid door lock signal.
The main door encoder 401 of the main door system 403 outputs a valid main door code identifier when detecting that the position of the main door is in the door closing in-place position, and outputs an invalid main door code identifier when detecting that the position of the main door is not in the door closing in-place position, specifically, the main door encoders 401 are all arranged on the doors of the car door main doors, and when the main door encoder 401 on the car door main doors detects that the position of the car door main doors is in the door closing in-place position, the valid main door code identifier is output, otherwise, the invalid main door code identifier is output.
The auxiliary door encoder 402 of the auxiliary door system 404 outputs a valid auxiliary door code identifier when detecting that the position of the auxiliary door is in the door closing in-place position, and outputs an invalid auxiliary door code identifier when detecting that the position of the auxiliary door is not in the door closing in-place position, specifically, the auxiliary door encoder 402 is arranged on the door machine of the car door auxiliary door, and outputs the valid auxiliary door code identifier when the auxiliary door encoder 402 on the car door auxiliary door detects that the position of the car door auxiliary door is in the door closing in-place position, otherwise, the invalid auxiliary door code identifier is output.
After receiving the door opening instruction, the main control module 30 opens the main door first, and determines that the door of the elevator is closed abnormally when determining that the door lock signal is an invalid door lock signal and the main door code identifier is an effective main door code identifier within a preset time period, or determines that the door of the elevator is closed abnormally when determining that the door lock signal is an effective door lock signal and the main door code identifier is an invalid main door code identifier within a preset time period.
For example, the effective primary door code identifier of the primary door in the closed position is a, the effective secondary door code identifier of the secondary door in the closed position is B, and the main control module 30 detects whether the door lock signal and the elevator door state represented by the code identifier are consistent, specifically as follows:
the method comprises the steps of firstly opening a main door, determining abnormal door closing of the elevator door when the door lock signal is determined to be an invalid door lock signal and the main door code identification is A within 300ms, or determining abnormal door closing of the elevator door when the door lock signal is determined to be an valid door lock signal and the main door code identification is not A within 300ms, namely theoretically, the door lock signal should be an invalid door lock signal and the main door code identification should not be A within 300ms as the main door is opened, if the door lock signal is invalid and the main door code identification is A, or the door lock signal is valid and the main door code identification is not A, determining abnormal door closing of the elevator, such as door lock adhesion or encoder slippage possibly, controlling the elevator to stop running to ensure safety, and generating fault information.
The main control module 30 receives a door closing instruction after the main door and the auxiliary door are opened in place, closes the main door first, and determines that the door of the elevator is closed abnormally if the door lock signal is valid door lock information after determining that the main door code identifier is a valid main door code identifier a within a preset time period.
For example, the effective main door code identifier of the main door in the closed position is a, after the main door is closed in the closed position, the main control module 30 determines that the main door code identifier is a in 300ms, and because the auxiliary door is not closed in the closed position or is in the open state at this time, if the received door lock signal is an effective door lock signal, it is determined that the elevator door of the elevator is closed abnormally, for example, the auxiliary door lock is short-circuited, so that the door lock signal is effective.
After determining that the primary door code identifier is a valid primary door code identifier within the preset time period, the main control module 30 determines that the door of the elevator is closed abnormally if a door lock signal is received that the secondary door code identifier is a valid secondary door code identifier within the preset time period and the door lock signal is invalid.
For example, the valid main door code identifier of the main door in the closed position is a, the valid auxiliary door code identifier of the auxiliary door in the closed position is B, after the main door is closed in the closed position, the main control module 30 determines that the main door code identifier is a within 300ms, if the received auxiliary door code identifier is B within 300ms, the door lock signal should be a valid door lock signal, and if the door lock signal is an invalid door lock signal, it determines that the elevator door of the elevator is closed abnormally.
In the embodiment of the invention, the elevator comprises the main door and the auxiliary door, the encoder is an original component in the elevator, the positions of the main door and the auxiliary door can be determined through the encoding identification output by the encoder without adding extra devices, and the system can determine whether the main door and the auxiliary door of the elevator are abnormally closed or not by combining the door lock signal, the main door encoding identification and the auxiliary door encoding identification, so that the cost of the elevator is reduced under the condition of ensuring the safety of the elevator.
In another embodiment of the present invention, the door system 40 is further configured to output a door lock position code identifier when the encoder detects that the door is located at the position of the door lock switch module, and the main control module 30 is further configured to determine whether the encoder is abnormal according to the door lock signal output by the door lock switch module, the code identifier output by the door system, and the door lock position code identifier.
For example, if the door lock code identifier of the main door lock is D, the door lock code identifier of the auxiliary door lock is E, the main door code identifier of the main door lock in the closed position is a, and the auxiliary door code identifier of the auxiliary door lock in the closed position is B, the elevator door system determines whether the encoder is abnormal according to the door lock signal output by the door lock switch module, the code identifier output by the elevator door system, and the door lock position code identifier as follows:
when the elevator has only a main door:
1. if the current output door lock code identification of the encoder is D, the main door code identification A is output at the same time, the output of the slave encoder indicates that the main door is closed in place, and if the door lock signal which is invalid indicates that the door lock switch module 20 is not actually closed and connected, the main door is closed abnormally, and the output of the encoder may have bias, such as the encoder slips, and the calibration is needed.
2. If the received door lock signal is effective, it is indicated that the main door is closed in place, if the position of the main door detected by the encoder and the door lock code identification stored in advance are not D, namely the main door detected by the encoder does not reach the door lock, if the error between the position of the main door and the position of the door lock exceeds 5mm, it is prompted that the door is closed abnormally, and the encoder needs to be corrected.
When the elevator comprises a main door and a secondary door:
1. when the door is opened, the main door is opened first, the main control module 30 transmits the auxiliary door code identification B of the auxiliary door which is closed in place to the main door system, and when the encoder of the main door system detects that the position of the main door reaches the door lock position, the door lock code identification D is output.
2. When the door is closed, the main door is closed firstly, the door lock code identification output after the main door is closed in place is D, the main control module sends the main door code identification A in place when the main door is closed to the auxiliary door system, the encoder of the auxiliary door system outputs the door lock code identification E when detecting that the auxiliary door reaches the door lock position, the door lock signal is an effective door lock signal, and if the door lock signal is an invalid door lock signal, the door is closed abnormally, and fault information is generated.
The elevator door system is further used for outputting a door lock position code identification when the encoder detects that the elevator door is located at the position of the door lock switch module, the main control module is further used for determining whether the encoder is abnormal or not according to the door lock signal output by the door lock switch module, the code identification output by the elevator door system and the door lock position code identification, short circuit fault detection can be performed on the main door lock or the auxiliary door lock under the condition that the door is opened and closed once in a flat layer, and the main door and the auxiliary door are closed in place, so that the risk of the elevator door opening operation is reduced.
Fig. 5 is a flowchart of a method for detecting an abnormal door closing state of an elevator according to a fourth embodiment of the present invention. The embodiment is applicable to the detection situation of the door closing abnormity of the elevator, and the method can be executed by a detection system of the door closing abnormity of the elevator, and the system can be realized by software and/or hardware. As shown in fig. 5, the method may include the steps of:
s501, receiving a door lock signal and a code identification, wherein the door lock signal is a signal output by a door lock switch module according to the opening and closing state of a door of an elevator, and the code identification is information output by a door system according to the position of the door detected by an encoder.
As shown in fig. 1, in the embodiment of the present invention, the system for detecting door closing abnormality of an elevator includes a safety circuit 10, a door lock switch module 20, a main control module 30, and a door system 40 provided with an encoder.
The door lock switch module 20 outputs a door lock signal according to the switching state of the elevator doors, outputs an effective door lock signal when all the hall doors are closed in place and the car doors are closed in place, and outputs an ineffective door lock signal when one of the hall doors and the car doors is not closed in place. The encoder detects the position of the ladder door, so as to generate a corresponding code identifier, specifically, an effective code identifier is generated when the ladder door is closed in place, otherwise, an invalid code identifier is generated. The main control module 30 is connected to the door lock switch module 20 and the door system 40, respectively, so as to receive the door lock signal output from the door lock switch module 20 and the coded identifier output from the door system 40.
S502, determining whether the door of the elevator is abnormally closed according to the door lock signal and the code identification.
Specifically, when one of the door lock signal and the code identification is invalid and the other is valid, the door closing abnormity of the elevator door is determined, and the door closing abnormity can be that the elevator door is not closed in place or the encoder slips when the elevator door is closed in place.
And S503, generating a control command to control the elevator to stop running and generating fault information when the door closing abnormity is determined.
When door closing abnormality of the elevator door is determined, a control instruction for stopping operation can be generated to control a motor of the elevator to stop working and generate related fault information, for example, the door closing fault of the elevator is prompted to a user in the form of light or sound.
In the embodiment of the invention, the encoder is an original component in the elevator door, the position of the elevator door can be determined through the encoding identifier output by the encoder without adding extra devices, and the system can determine whether the elevator door is abnormally closed by combining the door lock signal and the encoding identifier, so that the cost of the elevator is reduced under the condition of ensuring the safety of the elevator.
It should be noted that, as for the method embodiment, since it is basically similar to the system embodiment, the description is relatively simple, and the relevant points can be referred to the partial description of the system embodiment.
The method for detecting the door closing abnormity of the elevator provided by the embodiment of the invention is applied to the system for detecting the door closing abnormity of the elevator provided by the embodiment I, so that the system for detecting the door closing abnormity of the elevator has corresponding functional modules and beneficial effects.
Fig. 6 is a flowchart of a method for detecting an abnormal door closing state of an elevator according to a fifth embodiment of the present invention. The embodiment of the invention is optimized on the basis of the fourth embodiment. As shown in fig. 6, the optimized method for detecting door closing abnormality of an elevator may include the following steps:
s601, receiving a door lock signal and a code identification, wherein the door lock signal comprises an effective door lock signal and an ineffective door lock signal, and the code identification comprises an effective main door code identification and an ineffective main door code identification.
The elevator of the embodiment of the invention comprises a main door, and the code identification comprises valid and invalid main door code identifications output by the elevator door system according to the position of the main door detected by the encoder.
S602, determining that the door of the elevator is closed abnormally when the received door lock signal is determined to be an effective door lock signal and the received main door code identification is determined to be an invalid main door code identification within a preset time length, or when the received door lock signal is determined to be an invalid door lock signal and the received main door code identification is determined to be an effective main door code identification within the preset time length.
As shown in fig. 2, in the embodiment of the present invention, the safety circuit 10 is connected to the main control module 30 through a main door lock switch, specifically, the safety circuit 10, the hall door main door lock 201, the car door main door lock 202, and the main control module 30 are sequentially connected in series, the main door lock switch outputs an effective door lock signal when the main door is closed in place, and outputs an ineffective door lock signal when the main door is not closed in place, for example, the hall door main door lock 201 and the car door main door lock 202 both lock in place, and outputs an ineffective door lock signal when one of the hall door main door lock 201 and the car door main door lock 202 is not locked in place.
The main door encoder 401 of the main door system 403 outputs an effective main door code identifier when detecting that the position of the main door is in the door closing in-place position, and outputs an invalid main door code identifier when detecting that the position of the main door is not in the door closing in-place position, specifically, the main door encoders 401 are all arranged on the doors of the main doors of the car doors, and when the main door encoder 401 on the main doors of the car doors detects that the position of the main doors of the car doors is in the door closing in-place position, the effective main door code identifier is output, otherwise, the invalid main door code identifier is output.
The main control module 30 determines that the doors of the elevator are closed abnormally when determining that the received door lock signal is an effective door lock signal and determining that the received main door code identifier is an invalid main door code identifier within a preset time period, or determines that the doors of the elevator are closed abnormally when determining that the received door lock signal is an invalid door lock signal and determining that the received door code identifier is an valid main door code identifier within a preset time period.
And S603, generating a control command to control the elevator to stop running and generating fault information when the door closing abnormity is determined.
In the embodiment of the invention, the elevator comprises the main door, the encoder is an original part of the main door of the elevator, no additional device is needed, and the door closing abnormity of the elevator door is determined when the received door lock signal is determined to be an effective door lock signal and the received main door code identifier is determined to be an ineffective main door code identifier within the preset time length, or when the received door lock signal is determined to be an ineffective door lock signal and the received door code identifier is determined to be an effective main door code identifier within the preset time length, so that the cost of the elevator is reduced under the condition of ensuring the safety of the elevator.
It should be noted that, as for the method embodiment, since it is basically similar to the system embodiment two, the description is relatively simple, and the relevant points can be referred to the partial description of the system embodiment two.
The method for detecting the door closing abnormality of the elevator provided by the embodiment of the invention is applied to the system for detecting the door closing abnormality of the elevator provided by the embodiment II, so that the system for detecting the door closing abnormality of the elevator has corresponding functional modules and beneficial effects.
Fig. 7 is a flowchart of a method for detecting an abnormal door closing state of an elevator according to a sixth embodiment of the present invention. The embodiment of the invention is optimized on the basis of the fifth embodiment. As shown in fig. 7, the optimized method for detecting door closing abnormality of an elevator may include the following steps:
s701, receiving door lock signals and coding identification information, wherein the door lock signals comprise valid and invalid door lock signals, and the coding identifications comprise valid and invalid main door coding identifications and valid and invalid auxiliary door coding identifications.
On the basis of the fifth embodiment, the elevator of the embodiment of the invention also comprises the auxiliary door, and the code identification comprises valid and invalid main door code identification and valid and invalid auxiliary door code identification.
S702, after receiving a door opening instruction, when determining that a door lock signal is an invalid door lock signal and the main door code identifier is an effective main door code identifier within a preset time length, or when determining that the door lock signal is an effective door lock signal and the main door code identifier is an invalid main door code identifier within the preset time length, determining that a door of the elevator is abnormally closed.
And S703, after receiving the door closing instruction, if the main door code identifier is determined to be the effective main door code identifier within the preset time length and the door lock signal is the effective door lock information, determining that the door of the elevator is abnormally closed.
S704, after the main door code identification is determined to be the effective main door code identification within the preset time length, if the auxiliary door code identification which is effective within the preset time length is received and the door lock signal is an invalid door lock signal, determining that the door of the elevator is closed abnormally.
And S705, generating a control command to control the elevator to stop running and generating fault information when door closing abnormity is determined.
In another embodiment of the present invention, the method for detecting door closing abnormality of an elevator further comprises: determining whether the encoder is abnormal or not according to the door lock signal output by the door lock switch module, the code identifier output by the ladder door system and the door lock position code identifier; the door lock position code identification is a code identification output by an encoder when the position of the door lock switch module is detected.
It should be noted that, as for the method embodiment, since it is basically similar to the system embodiment three, the description is relatively simple, and for relevant points, reference may be made to part of the description of the system embodiment three.
The method for detecting the door closing abnormality of the elevator provided by the embodiment of the invention is applied to the system for detecting the door closing abnormality of the elevator provided by the third embodiment, so that the system for detecting the door closing abnormality of the elevator has corresponding functional modules and beneficial effects.
The embodiment of the invention also provides an elevator, which comprises the system for detecting the door closing abnormity of the elevator provided by the first embodiment, the second embodiment or the third embodiment.
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 (10)
1. A detection system for abnormal door closing of an elevator is characterized by comprising a safety loop, a door lock switch module, a main control module and a door system provided with an encoder;
the door lock switch module is connected with the safety loop and outputs a door lock signal according to the opening and closing state of the elevator door;
the ladder door system outputs a coded identification according to the position of the ladder door detected by the encoder;
the main control module is respectively connected with the door lock switch module and the elevator door system, determines whether the door of the elevator is abnormally closed according to a door lock signal output by the door lock switch module and a code identifier output by the elevator door system, and generates a control instruction to control the elevator to stop running and generate fault information when determining that the door is abnormally closed;
the elevator comprises a main door, the door lock switch module comprises a main door lock switch, and the elevator door system comprises a main door system provided with an encoder;
the safety loop is connected with the main control module through the main door lock switch, the main door lock switch outputs an effective door lock signal when the main door is closed in place, and outputs an ineffective door lock signal when the main door is not closed in place;
the encoder of the main door system outputs a valid main door code identification when detecting that the position of the main door is in a door-closing in-place position, and outputs an invalid main door code identification when detecting that the position of the main door is not in the door-closing in-place position;
the main control module is used for:
determining that the door of the elevator is closed abnormally when the received door lock signal is determined to be an effective door lock signal and the received main door code identification is determined to be an invalid main door code identification within a preset time length;
or;
and when the received door lock signal is determined to be an invalid door lock signal and the received main door code identification is determined to be an effective main door code identification within a preset time length, determining that the door of the elevator is abnormally closed.
2. The system of claim 1, wherein the elevator further comprises a secondary door, the door lock switch module further comprises a secondary door lock switch, the elevator door system further comprises a secondary door system provided with an encoder;
the auxiliary door lock switch is connected between the main door lock switch and the main control module, the door lock switch module outputs an effective door lock signal when the main door and the auxiliary door are both closed in place, and the door lock switch module outputs an ineffective door lock signal when at least one of the main door and the auxiliary door is not closed in place;
and the encoder of the auxiliary door system outputs a valid auxiliary door code identification when detecting that the position of the auxiliary door is in the door-closing in-place position, and outputs an invalid auxiliary door code identification when detecting that the position of the auxiliary door is not in the door-closing in-place position.
3. The system of claim 2, wherein the master module is to:
after a door opening instruction is received, determining that the door of the elevator is closed abnormally when the door lock signal is determined to be an invalid door lock signal and the main door code identifier is a valid main door code identifier within a preset time length;
alternatively, the first and second electrodes may be,
and when the door lock signal is determined to be an effective door lock signal and the main door code identification is an invalid main door code identification within a preset time length, determining that the door of the elevator is abnormally closed.
4. The system of claim 3, wherein the master module is further to:
after a door closing instruction is received, determining that a main door code identifier is an effective main door code identifier within a preset time length, and if a door lock signal is effective door lock information, determining that the door of the elevator is abnormally closed;
after determining that the main door code identification is valid within a preset time length, if receiving a door lock signal that an auxiliary door code identification is valid within the preset time length and the door lock signal is invalid, determining that the elevator door of the elevator is closed abnormally;
the preset time is the time from the door closing terminal to the hall door lock.
5. The system of claim 1, wherein the door system is further configured to:
outputting a door lock position coding identifier when the encoder detects that the elevator door is positioned at the position of the door lock switch module;
the main control module is further configured to:
and determining whether the encoder is abnormal or not according to the door lock signal output by the door lock switch module, the code identifier output by the ladder door system and the door lock position code identifier.
6. The method for detecting the door closing abnormity of the elevator is applied to a system for detecting the door closing abnormity of the elevator, the system for detecting the door closing abnormity of the elevator comprises a safety circuit, a door lock switch module, a main control module and a door system provided with an encoder, the door lock switch module is connected with the safety circuit, the main control module is respectively connected with the door lock switch module and the door system, and the method comprises the following steps:
the main control module receives a door lock signal and a code identifier, the door lock signal is a signal output by a door lock switch module according to the opening and closing state of a door of an elevator, and the code identifier is information output by a door system according to the position of the door detected by an encoder;
determining whether the door of the elevator is abnormally closed or not according to the door lock signal and the code identification;
generating a control command to control the elevator to stop running and generate fault information when door closing abnormity is determined;
the elevator comprises a main door, the door lock switch module comprises a main door lock switch, the door lock signals comprise valid and invalid door lock signals, the code identifiers comprise valid and invalid main door code identifiers, and the determining whether the door of the elevator is abnormally closed according to the door lock signals and the code identifiers comprises the following steps:
determining that the door of the elevator is closed abnormally when the received door lock signal is determined to be an effective door lock signal and the received main door code identification is determined to be an invalid main door code identification within a preset time length;
or;
determining that the door of the elevator is closed abnormally when the received door lock signal is determined to be an invalid door lock signal and the received main door code identifier is determined to be an effective main door code identifier within a preset time length;
the main door lock switch outputs an effective door lock signal when the main door is closed in place and outputs an ineffective door lock signal when the main door is not closed in place;
the encoder outputs a valid main door code identification when detecting that the position of the main door is in the door closing in-place position, and outputs an invalid main door code identification when detecting that the position of the main door is not in the door closing in-place position.
7. The method of claim 6, wherein the elevator further comprises a secondary door, wherein the door lock switch module further comprises a secondary door lock switch, wherein the door system further comprises a secondary door system provided with an encoder, wherein the door lock signal comprises valid and invalid door lock signals, wherein the code identifier comprises valid and invalid primary door code identifiers and valid and invalid secondary door code identifiers, and wherein determining whether the door of the elevator is abnormally closed according to the door lock signal and the code identifier comprises:
after a door opening instruction is received, determining that the door of the elevator is closed abnormally when the door lock signal is determined to be an invalid door lock signal and the main door code identifier is a valid main door code identifier within a preset time length;
alternatively, the first and second electrodes may be,
when the door lock signal is determined to be an effective door lock signal and the main door code identification is an invalid main door code identification within a preset time length, determining that the door of the elevator is abnormally closed;
the auxiliary door lock switch is connected between the main door lock switch and the main control module, and outputs an effective door lock signal when the main door and the auxiliary door are both closed in place, and outputs an ineffective door lock signal when at least one of the main door and the auxiliary door is not closed in place;
and the encoder of the auxiliary door system outputs a valid auxiliary door code identification when detecting that the position of the auxiliary door is in the door-closing in-place position, and outputs an invalid auxiliary door code identification when detecting that the position of the auxiliary door is not in the door-closing in-place position.
8. The method of claim 7, wherein said determining from the door lock signal and the coded identification whether a door of the elevator is closed is further comprised of:
after receiving a door closing instruction, if the main door code identification is determined to be effective in a preset time length and the door lock signal is effective door lock information, determining that the door of the elevator is abnormally closed;
after determining that the main door code identification is valid within a preset time length, if receiving a door lock signal that an auxiliary door code identification is valid within the preset time length and the door lock signal is invalid, determining that the elevator door of the elevator is closed abnormally;
the preset time is the time from the door closing terminal to the hall door lock.
9. The method of claim 6, wherein the method further comprises:
determining whether the encoder is abnormal or not according to the door lock signal output by the door lock switch module, the code identifier output by the ladder door system and the door lock position code identifier;
the door lock position code identification is a code identification output by an encoder when the position of the door lock switch module is detected.
10. Elevator, characterized in that it comprises a system for detecting door closing anomalies of an elevator according to any one of claims 1-5.
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| CN110451372A (en) * | 2019-08-12 | 2019-11-15 | 永大电梯设备（中国）有限公司 | A kind of confirmation method of elevator switch door performance |
| CN117509347B (en) * | 2024-01-05 | 2024-04-09 | 菱王电梯有限公司 | Elevator operation fault early warning method and system |
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| JP2002154774A (en) * | 2000-11-15 | 2002-05-28 | Hitachi Building Systems Co Ltd | Door device for elevator |
| JP2011063356A (en) * | 2009-09-16 | 2011-03-31 | Mitsubishi Electric Building Techno Service Co Ltd | Power source supply device of elevator door sensor |
| JP4997275B2 (en) * | 2009-10-23 | 2012-08-08 | 株式会社日立ビルシステム | Elevator diagnostic equipment |
| JP5525366B2 (en) * | 2010-07-28 | 2014-06-18 | 株式会社日立ビルシステム | Elevator door monitoring device |
| CN202492253U (en) * | 2011-11-18 | 2012-10-17 | 西子联合控股有限公司 | Elevator storey door state monitoring device |
| CN204802836U (en) * | 2015-06-02 | 2015-11-25 | 北京航天金羊电梯有限公司 | Elevator lock short circuit protection system |
| CN109789992B (en) * | 2016-10-13 | 2020-12-01 | 三菱电机株式会社 | Elevator control circuit |
| CN207276002U (en) * | 2017-02-28 | 2018-04-27 | 深圳市海浦蒙特科技有限公司 | Door lock of elevator control circuit |
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