CN110723627A - Elevator safe operation method, system, equipment, storage medium and electronic device - Google Patents
Elevator safe operation method, system, equipment, storage medium and electronic device Download PDFInfo
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- CN110723627A CN110723627A CN201910942661.9A CN201910942661A CN110723627A CN 110723627 A CN110723627 A CN 110723627A CN 201910942661 A CN201910942661 A CN 201910942661A CN 110723627 A CN110723627 A CN 110723627A
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- door
- signal
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- switch
- sensor
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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
- B66B1/00—Control systems of elevators in general
- B66B1/02—Control systems without regulation, i.e. without retroactive action
- B66B1/06—Control systems without regulation, i.e. without retroactive action electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
- B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The embodiment of the invention provides a safe operation method, a safe operation system, equipment, a storage medium and a programmable electronic device of an elevator, which are used for realizing the advance door opening of an elevator system, and the method comprises the following steps: acquiring a first gate area signal and a second gate area signal; when the first door area signal and the second door area signal are both effective, a door area effective signal is sent to an elevator main controller; when a door sealing instruction from the elevator main controller is received, controlling a door sealing switch group to be closed so as to short-circuit a door lock loop, wherein the door sealing instruction is generated by the elevator main controller according to the door area effective signal and in combination with the elevator running state; and after the door sealing switch group is closed, sending a door sealing feedback signal to the elevator main controller to enable the elevator main controller to execute door opening in advance or leveling operation. The embodiment of the invention can realize the function of opening the door in advance, greatly reduce the cost and improve the expandability.
Description
Technical Field
The embodiment of the invention relates to the field of elevator control, in particular to a safe operation method, a system, equipment, a storage medium and a programmable electronic device of an elevator.
Background
With the improvement of living standard of people, the safety of the elevator is more and more attracted to people as one of indispensable transportation means in daily life and work of people.
The elevator is in the flat bed function of the in-process of opening the door, commonly known as the function of opening the door in advance, is used for passenger's elevator usually, and its purpose is in order to save time, improves the operating efficiency. The elevator is allowed to correct the stopping position of the lift car during loading and unloading after reaching a door area and stopping, and the aim is to compensate small lifting of the lift car caused by stretching of a traction steel wire rope when goods or a transport vehicle enters and exits the lift car, so that a lift car sill and a landing sill are basically horizontal, and the goods or the transport vehicle can enter and exit conveniently. When the car is in the state of opening the door at door zone position, the driver does not have any operation instruction, need to guarantee that the car does not take place unexpected removal to protect personnel and article.
In the existing elevator system, the functions of opening the door in advance, leveling again and protecting the accidental movement of the car are mostly realized by using a pure hardware mode. However, the safety relay used in the pure hardware implementation scheme has high cost and poor function expandability.
Disclosure of Invention
The embodiment of the invention provides a safe operation method, a system, equipment, a storage medium and a programmable electronic device of an elevator, aiming at the problems of higher cost and poorer expandability caused by the pure hardware mode of the protection functions of opening the door in advance, leveling again and accidental movement of the elevator car in the elevator system.
The technical solution for solving the above technical problems in the embodiments of the present invention is to provide a safe operation method of an elevator, which is characterized in that the safe operation method is applied to a programmable electronic device, and the method includes:
acquiring a first gate area signal and a second gate area signal;
when the first door area signal and the second door area signal are both effective, a door area effective signal is sent to an elevator main controller;
when a door sealing instruction from the elevator main controller is received, controlling a door sealing switch group to be closed so as to short-circuit a door lock loop, wherein the door sealing instruction is generated by the elevator main controller according to the door area effective signal and in combination with the elevator running state;
and after the door sealing switch group is closed, sending a door sealing feedback signal to the elevator main controller to enable the elevator main controller to execute door opening in advance or leveling operation.
Preferably, the method further comprises:
and controlling the door sealing switch group to be switched off when the first door area signal is detected to be invalid or the second door area signal is detected to be invalid.
Preferably, the door sealing switch group comprises a first door sealing switch and a second door sealing switch, the first door area signal is output through an upper door area signal sensor, the second door area signal is output through a lower door area signal sensor, the upper door area signal sensor and the lower door area signal sensor are located between an upper flat sensor and a lower flat sensor, and the upper door area signal sensor and the lower door area signal sensor are respectively triggered by a magnetism isolating plate in a well to output effective signals.
Preferably, the method further comprises:
upon receiving a door-closing command from the elevator main controller, controlling a first additional brake switch and a second additional brake switch, which are connected in series in an additional brake control loop, to be closed.
The embodiment of the invention also provides a safe operation method of the elevator, which is applied to the main controller of the elevator and comprises the following steps:
receiving a gate region valid signal from a programmable electronic device;
generating a door sealing instruction according to the door zone effective signal and the elevator running state, and sending the door sealing instruction to the programmable electronic device so that the programmable electronic device controls the door sealing switch group to be closed;
and receiving a door sealing feedback signal from the programmable electronic device, and executing door opening in advance or leveling operation.
Preferably, the generating a door closing command according to the door zone effective signal and the elevator running state comprises:
and generating a door sealing instruction according to the door zone effective signal when the elevator car door is in an open state and the signal of the upper leveling sensor is invalid or the signal of the lower leveling sensor is invalid.
Preferably, the door sealing switch group comprises a first door sealing switch and a second door sealing switch, and the first door sealing switch and the second door sealing switch are connected in series and then connected in parallel with the door lock loop;
the gate region valid signal is generated when the first gate region signal and the second gate region signal are valid;
first door district signal is through last door district signal sensor output, second door district signal is through lower door district signal sensor output, last door district signal sensor and lower door district signal sensor are located between last flat bed sensor and the lower flat bed sensor, just go up door district signal sensor and lower door district signal sensor and trigger the output valid signal by the magnetism proof board in the well respectively.
The embodiment of the invention also provides elevator safe operation equipment, which comprises a memory and a processor, wherein the memory is stored with a computer program capable of running on the processor, and the processor executes the computer program to realize the steps of the elevator safe operation method.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the elevator safe operation method are implemented.
The embodiment of the invention also provides a programmable electronic device, which comprises a logic control unit, a switch control unit and a door sealing switch group, wherein the switch control unit is connected to the control end of the door sealing switch group;
the logic control unit is used for sending a door zone effective signal to the elevator main controller when the received first door zone signal and the second door zone signal are both effective signals; the logic control unit sends a closing instruction to the switch control unit when receiving a door closing instruction from the elevator main controller, and sends a door closing feedback signal to the elevator main controller after the door closing switch group is closed;
and the switch control unit is used for controlling the closing of the door sealing switch group when receiving a closing instruction from the logic control unit so as to short-circuit the door lock loop.
Preferably, the programmable electronic device comprises a first interface for connecting an elevator main controller, and the logic control unit sends a door zone valid signal to the elevator main controller through the first interface;
the programmable electronic device comprises a second interface used for being connected with an upper door area signal sensor, a third interface used for being connected with a lower door area signal sensor and a fourth interface used for being connected with an elevator main controller, a first door area signal is obtained from the upper door area signal sensor through the second interface, a second door area signal is obtained from the lower door area signal sensor through the third interface, and a door closing instruction is obtained from the elevator main controller through the fourth interface;
the programmable electronic device includes a fifth interface for connecting a door lock loop of an elevator, and the set of door closing switches is connected to the fifth interface.
The programmable electronic device further comprises a plurality of isolation units, and the logic control unit is connected to the second interface, the third interface and the fourth interface through the isolation units respectively.
Preferably, when the logic control unit detects that the first gate area signal is invalid or the second gate area signal is invalid, the switch control unit controls the closing switch set to be switched off.
Preferably, the programmable electronic device further comprises a first additional brake switch, a second additional brake switch and a sixth interface, and the first additional brake switch and the second additional brake switch are connected to the sixth interface;
the switch control unit is connected to the control ends of the first additional brake switch and the second additional brake switch, and the logic control unit controls the first additional brake switch and the second additional brake switch to be closed through the switch control unit when receiving a door sealing command from an elevator main controller.
The embodiment of the invention also provides an elevator safe operation system, which comprises an elevator main controller, a door lock loop, a sensing device and the programmable electronic device;
the sensing device comprises an upper gate area signal sensor and a lower gate area signal sensor, and the upper gate area signal sensor and the lower gate area signal sensor are connected to the logic control unit of the programmable electronic device;
the elevator main controller is connected with the logic control unit, generates a door sealing instruction according to a door zone effective signal from the logic control unit and an elevator running state, and sends the door sealing instruction to the logic control unit; the elevator main controller also executes the operation of opening the door in advance or leveling again when receiving a door sealing feedback signal from the logic control unit.
Preferably, the elevator main controller generates a door sealing instruction according to the door zone effective signal when the elevator car door is in an open state and the upper leveling sensor signal is invalid or the lower leveling sensor signal is invalid.
Preferably, the door sealing switch group comprises a first door sealing switch and a second door sealing switch, and the first door sealing switch and the second door sealing switch are connected in series and then connected in parallel with the door lock loop;
the upper door area signal sensor and the lower door area signal sensor are located between the upper leveling sensor and the lower leveling sensor, and the upper door area signal sensor and the lower door area signal sensor are respectively triggered by a magnetic isolation plate in a well to output effective signals.
According to the elevator safe operation protection method, the elevator safe operation protection system, the elevator safe operation protection equipment, the elevator safe operation protection device and the programmable electronic device, door sealing diagnosis is carried out through the programmable electronic device, and the first door sealing switch and the second door sealing switch which are connected in series in the door lock loop are controlled, so that the function of opening the door in advance is achieved, the cost is greatly reduced, and meanwhile the programmable electronic device can operate software, so that the expandability of the elevator safe operation protection system is improved. The embodiment of the invention can also realize the functions of re-leveling and protecting the accidental movement of the lift car.
Drawings
Fig. 1 is a schematic flow chart of a safe operation method of an elevator provided by an embodiment of the invention;
fig. 2 is a schematic view of the installation of an upper door zone signal sensor and a lower door zone signal sensor in the elevator safety operation method provided by the embodiment of the invention;
fig. 3 is a schematic view of a safe operation method of an elevator according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a programmable electronic device provided by an embodiment of the invention;
fig. 5 is a schematic view of an elevator safety operation system provided by an embodiment of the present invention;
fig. 6 is a schematic view of an elevator safety operation apparatus provided in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a schematic flow diagram of an elevator safe operation method provided by an embodiment of the present invention, and the elevator safe operation method can be applied to an elevator system, and can realize an advance door opening function of an elevator car by a programmable electronic device in cooperation with an elevator main controller. The Programmable electronic device is independent of an elevator main Controller (the elevator main Controller may be an elevator all-in-one machine integrated with a control main board and a frequency converter), and the Programmable electronic device may specifically be composed of a control chip and a peripheral circuit, for example, may be a Programmable Logic Controller (PLC), which may execute software and implement corresponding functions.
Specifically, the elevator safety protection method of the embodiment includes the following steps executed by the programmable electronic device:
step S11: a first gate region signal and a second gate region signal are acquired. Specifically, the first gate area signal may be output through an upper gate area signal sensor, and the second gate area signal may be output through a lower gate area signal sensor.
The upper door area signal sensor and the lower door area signal sensor are positioned between the upper leveling sensor and the lower leveling sensor, and are triggered by a magnetism isolating plate in the hoistway respectively to output effective signals. As shown in fig. 2, the upper door zone signal sensor 21 and the lower door zone signal sensor 22 are respectively installed between the upper leveling sensor 23 and the lower leveling sensor 24, and the upper door zone signal sensor 21 and the lower door zone signal sensor 22 are located at different height positions. An upper door zone signal sensor 21, a lower door zone signal sensor 22, an upper leveling sensor 23 and a lower leveling sensor 24 may be mounted to the car and follow the car up and down. The upper door zone signal sensor 21 and the lower door zone signal sensor 22 are respectively triggered by the magnetic isolation plate 20 in the hoistway to output valid signals, that is, when the upper door zone signal sensor 21 and the lower door zone signal sensor 22 run along with the car, if the upper door zone signal sensor reaches the area where the magnetic isolation plate 20 is located, the output signal is valid (for example, high level), and when the lower door zone signal sensor leaves the area where the magnetic isolation plate 20 is located, the output signal is invalid (for example, low level). Therefore, the programmable electronic device can acquire the position of the car in real time according to the output signals of the upper door zone signal sensor 21 and the lower door zone signal sensor 22 so as to cooperate with the elevator main controller to open the door in advance. Certainly, in practical applications, the first door zone signal and the second door zone signal may also be generated in other manners, and only when the car reaches the door zone, the first door zone signal and the second door zone signal are valid; when the car leaves the door zone, the first door zone signal and the second door zone signal are not valid.
Similarly, the upper leveling sensor 23 and the lower leveling sensor 24 are also triggered by the magnetism isolating plate 20 to output valid signals. The outputs of the above-mentioned upper and lower level sensors 23, 24 may be connected via an isolation unit to an elevator main controller, which may perform a leveling operation on the basis of the output signals of the upper and lower level sensors 23, 24.
Step S12: and when the first door zone signal and the second door zone signal are both effective, sending a door zone effective signal to the elevator main controller. Namely, the first door zone signal and the second door zone signal are used for confirming that the cage arrives at the door zone, and a door zone effective signal is sent to the elevator main controller.
Step S13: and when receiving a door sealing command from the elevator main controller, controlling the door sealing switch group to be closed so as to short-circuit the door lock loop. The door closing command is generated by the elevator main controller according to the door zone effective signal sent in the step S12 and combined with the running state of the elevator.
Above-mentioned door switch group can integrate to programmable electronic device, and in order to improve the security, the door switch group of sealing includes first door switch and second door switch, and parallelly connected to the both ends of the lock return circuit of elevator after above-mentioned first door switch and the second door switch of sealing establish ties, only when first door switch and the second door switch of sealing are all closed promptly, just can be with the lock switch short circuit in the lock return circuit of elevator system to elevator main control unit can carry out the operation of opening the door. Through the two-way redundancy of the door sealing switch group, the safety failure risk can be reduced, and the safety is improved.
And when receiving a door sealing command from the elevator main controller, the programmable electronic device controls the first door sealing switch and the second door sealing switch to be closed. The door sealing instruction is generated by the elevator main controller according to the door zone effective signal and in combination with the elevator running state, namely the elevator main controller can generate the door sealing instruction only when the door zone signal from the programmable electronic device is effective. Similarly, to improve the security, the door-closing command is divided into two paths and is input to different input terminals of the programmable electronic device through the isolation unit.
Step S14: and after the door sealing switch group is closed, a door sealing feedback signal is sent to the elevator main controller, so that the elevator main controller executes the operation of opening the door in advance or leveling the floor again. Specifically, the programmable electronic device sends a door-sealing feedback signal to the elevator main controller only after all door-sealing switches in the door-sealing switch group are closed.
The elevator main controller executes the advance door opening operation when confirming that the first door sealing switch and the second door sealing switch are closed. Referring to fig. 2, when the upper door zone signal sensor 21 and the lower door zone signal sensor 22 reach the area where the magnetism isolating plate 20 is located, one of the upper leveling sensor 23 and the lower leveling sensor 24 does not reach the area where the magnetism isolating plate 20 is located, and at this time, the door opening operation is performed, so that the operation efficiency of the elevator can be greatly improved.
Particularly, the first door sealing switch and the second door sealing switch in the door sealing switch group can adopt a double-contact relay (the main contacts are normally open, the auxiliary contacts are normally closed, when the auxiliary contacts of the double-contact relay are closed, the main contacts are open, when the auxiliary contacts of the double-contact relay are open, the main contacts of the double-contact relay are closed), and the main contacts of the two double-contact relays are connected in series and then connected to two ends of a door lock loop in parallel, so that the programmable electronic device can know the state of the double-contact relay (namely the state of the main contacts of the double-contact relay) according to the state of the auxiliary contacts
According to the elevator safe operation method, the programmable electronic device is used for door sealing diagnosis according to the output signals of the upper door area signal sensor and the lower door area signal sensor, and the first door sealing switch and the second door sealing switch are controlled to short-circuit the door lock loop according to the door sealing instruction of the elevator main controller, so that the elevator main controller can be matched to realize the function of opening the door in advance, the cost is greatly reduced while the safety is not influenced, and meanwhile, the programmable electronic device can operate software, so that the expandability of the system is improved.
In an embodiment of the present invention, the elevator safe operation method may further implement a car accidental movement protection function, and specifically, when detecting that the first door zone signal is invalid or the second door zone signal is invalid (either one or both of them are invalid), the programmable electronic device controls the door-sealing switch sets (the first door-sealing switch and the second door-sealing switch) to be turned off, so that the door lock switches in the door lock loop are not short-circuited, and the elevator main controller cannot perform door opening in advance or floor leveling, that is, when the car accidental movement occurs, the car doors cannot be opened, thereby improving safety.
When the elevator system further includes an additional brake, the above elevator safe operation method may further include: and when a door sealing command from the elevator main controller is received, the first additional brake switch and the second additional brake switch are controlled to be closed, namely when the door sealing command from the elevator main controller is received, the programmable electronic device controls the first door sealing switch, the second door sealing switch, the first additional brake switch and the second additional brake switch to be closed simultaneously. The first and second additional brake switches are connected in series in an additional brake control circuit. The programmable electronic device controls the action of the additional brake through the first additional brake switch and the second additional brake switch, thereby facilitating the elevator main controller to execute the operation of opening the door in advance or leveling the floor again.
Similarly, the first additional brake switch and the second additional brake switch can respectively adopt a double-contact relay, the normally open contact of the double-contact relay is connected into the additional brake control loop, and the programmable electronic device can confirm the states of the first additional brake switch and the second additional brake switch in real time according to the states of the normally closed contact of the double-contact relay.
As shown in fig. 3, the present invention also provides a safe elevator operation method, which is executed by the elevator main controller and can be matched with the programmable electronic device to realize the advance door opening and the re-leveling of the elevator. Specifically, the method comprises the following steps:
step S31: a gate region valid signal is received from the programmable electronic device. The gate area valid signal may be generated by the programmable electronic device according to a first gate area signal output by the upper gate area signal sensor and a second gate area signal output by the lower gate area signal sensor, and the programmable electronic device may generate the gate area valid signal when both the first gate area signal and the second gate area signal are valid.
Step S32: and generating a door sealing instruction according to the door zone effective signal and the elevator running state, and sending the door sealing instruction to the programmable electronic device so that the programmable electronic device controls the closing of the door sealing switch group.
The door sealing switch group can be integrated into the programmable electronic device, and in order to improve the safety, the door sealing switch group comprises a first door sealing switch and a second door sealing switch, the first door sealing switch and the second door sealing switch are connected in series and then connected to two ends of a door lock loop of the elevator in parallel, and the programmable electronic device controls the closing of the door sealing switch group to enable the door lock loop of the elevator to be in short circuit.
Step S33: and receiving a door sealing feedback signal from the programmable electronic device, and executing door opening in advance or leveling operation. Specifically, the programmable electronic device sends a door-sealing feedback signal to the elevator main controller only after all door-sealing switches in the door-sealing switch group are closed.
According to the elevator safe operation method, the door zone effective signal is obtained according to the programmable electronic device to generate the corresponding instruction, and the door opening function is realized in advance by short-circuit of the door lock loop through the programmable electronic device, so that the cost is greatly reduced while the safety is not influenced.
In step S33, the elevator main controller generates a door closing command when the elevator car door is in the open state and the upper or lower floor sensor signal is invalid (from the upper or lower floor sensor signal) based on the door zone valid signal from the programmable electronic device.
Specifically, after the elevator car door is opened, the elevator sinks due to some factors (e.g., heavy load loading causes deformation of the hoisting rope), causing the lower leveling sensor 24 to fall out of the area where the magnetism isolating plate 20 is located, i.e., the lower leveling signal is lost. After the elevator main controller detects that the lower leveling signal is lost, if the programmable electronic device still receives effective signals of the upper door area signal sensor and effective signals of the lower door area signal sensor (namely the upper door area signal sensor and the lower door area signal sensor are still located in the area where the magnetic partition plate is located), the programmable electronic device still sends effective signals of the door area to the elevator main controller, the elevator main controller outputs a door sealing instruction to the programmable electronic device, and the programmable electronic device executes a door sealing operation according to the door sealing instruction to control the first door sealing switch and the second door sealing switch to be closed. When the first door sealing switch and the second door sealing switch are closed, the programmable electronic device outputs a door sealing feedback signal to the elevator main controller, and the elevator main controller executes door opening to complete the re-leveling function.
As shown in fig. 4, an embodiment of the present invention further provides a programmable electronic device, which is matched with the elevator main controller to implement the advance door opening function of the elevator car. The programmable electronic device is independent of an elevator main controller (the elevator main controller can be an elevator all-in-one machine integrated with a control main board and a frequency converter), and the programmable electronic device can be specifically composed of a control chip and a peripheral circuit, can execute software and realize corresponding functions.
Specifically, the programmable electronic device of the present embodiment includes a logic control unit 41, a switch control unit 42, and a door closing switch group 43, the switch control unit 42 is connected to a control terminal of the door closing switch group 43, and the door closing switch group 43 is connectable to a door lock loop of the elevator. The door-sealing switch group 43 may include a first door-sealing switch and a second door-sealing switch.
The programmable electronic device is connectable to an elevator main controller, an upper door zone signal sensor, and a lower door zone signal sensor. When the first door zone signal from the upper door zone signal sensor and the second door zone signal from the lower door zone signal sensor are both valid, the logic control unit 41 sends a door zone valid signal to the elevator main controller; and the logic control unit 41 sends a closing instruction of the door closing switch group to the switch control unit when receiving the door closing instruction from the elevator main controller, and sends a door closing feedback signal to the elevator main controller after the door closing switch group is closed.
The switch control unit 42 controls the closing of the door lock switch group 43 to short-circuit the door lock loop when receiving the closing command of the door lock switch group from the logic control unit 41.
The programmable electronic device carries out door sealing diagnosis according to the output signals of the upper door area signal sensor and the lower door area signal sensor, and carries out short circuit on the door lock loop according to the door sealing instruction of the elevator main controller, so that the programmable electronic device can be matched with the elevator main controller to realize the function of opening the door in advance, the cost is greatly reduced while the safety is not influenced, and meanwhile, the programmable electronic device can run software, and the expandability of the system is improved.
In particular, the programmable electronic device may further include a first interface 44, a second interface 45, a third interface 46, a fourth interface 47, and a fifth interface 48. Through the first interface 44 the logic control unit 41 CAN be connected (e.g. through a CAN bus) to the elevator master controller to send a door zone valid signal and a door seal feedback signal to the elevator master controller. Through the second interface 45 and the third interface 46, the logic control unit 41 may be connected to an upper gate area signal sensor and a lower gate area signal sensor to obtain a first gate area signal and a second gate area signal. Through the fourth interface 47 the logic control unit 41 can be connected to the elevator main control to obtain a door closing command from the elevator main control. Via the fifth interface 48 the closing switch group 43 can be connected to the door lock circuit of the elevator to short-circuit the door lock circuit. The fifth interface 48 may include two terminals between which the first and second door-sealing switches of the door-sealing switch group may be connected in series.
In order to improve reliability, the upper gate area signal sensor 21 and the lower gate area signal sensor 22 may respectively generate two output signals, and correspondingly, the second interface 45 and the third interface 46 also respectively include two signal receiving terminals and respectively transmit the two output signals to the logic control unit 41. The logic control unit 41 only confirms that the corresponding sensor outputs a valid signal when two input end signals connected with the same sensor are valid at the same time, otherwise confirms that the corresponding sensor outputs an invalid signal, thereby reducing errors caused by interference and greatly improving safety. For example, when one of the two input terminals of the logic control unit 41 connected to the upper gate region signal sensor is at a high level and the other is at a low level, it is determined that the output signal of the upper gate region signal sensor is invalid.
Similarly, the door closing command from the elevator main controller can be divided into two paths, and accordingly, the fourth interface 47 also includes two signal receiving terminals and transmits the two paths of door closing commands to the logic control unit 41. Furthermore, the second interface 45, the third interface 46 and the fourth interface 47 may be connected to different inputs of the programmable electronic device via the isolation unit, respectively.
Particularly, when the logic control unit 41 detects that the signal of the second interface 45 is invalid or the signal of the third interface 46 is invalid, the switch control unit 42 controls the door closing switch group to be disconnected, that is, the door lock loop is not short-circuited, so that the function of protecting the car from accidental movement is realized, and the safety is improved.
The programmable electronic device may further comprise an additional brake switch set 40 and a sixth interface 49, via which sixth interface 49 the additional brake switch set 40 may be connected to the control circuit of the additional brake. The additional brake switch group 40 includes a first additional brake switch, a second additional brake switch, which are connected in series between two terminals of the sixth interface 49. The switch control unit 42 is connected to the control terminals of the first additional brake switch and the second additional brake switch, and the logic control unit 41 controls the first additional brake switch and the second additional brake switch to be closed through the switch control unit 42 when receiving a door sealing command from the elevator main controller, so that the additional brakes are actuated.
As shown in fig. 5, the embodiment of the present invention also provides an elevator safety operation system, which can be integrated into an elevator system and includes an elevator main controller 51, a door lock loop, a sensing device, and a programmable electronic device as shown in fig. 4. The sensing device comprises an upper door area signal sensor 21 and a lower door area signal sensor 22, the programmable electronic device comprises a logic control unit 41, a light opening control unit and a door sealing switch group 43, and the door sealing switch group comprises a first door sealing switch and a second door sealing switch.
As shown in fig. 2, the upper door zone signal sensor 21 and the lower door zone signal sensor 22 are respectively installed between the upper leveling sensor 23 and the lower leveling sensor 24, and the upper door zone signal sensor 21 and the lower door zone signal sensor 22 are respectively triggered by the magnetic isolation plate 20 in the hoistway to output valid signals.
The first door sealing switch and the second door sealing switch are connected in the door lock loop, and after the first door sealing switch and the second door sealing switch are connected in series, the first door sealing switch and the second door sealing switch are connected in parallel with the door lock switch in the door lock loop, so that when the first door sealing switch and the second door sealing switch are closed, the door lock switch in the door lock loop is in short circuit. Particularly, the first door sealing switch and the second door sealing switch can respectively adopt a double-contact safety relay, a normally open contact of the double-contact relay is connected into the door lock loop, and a normally closed contact is connected to the programmable electronic device, so that the programmable electronic device can confirm the states of the first door sealing switch and the second door sealing switch in real time according to the state of the normally closed contact of the double-contact relay.
The elevator main controller 51 is connected with the logic control unit 41, generates a door sealing instruction according to the door zone effective signal from the logic control unit 41 and the elevator running state, and sends the door sealing instruction to the logic control unit 41; the elevator main controller 51 also performs an advance door opening or a re-leveling operation upon receiving a door closing feedback signal from the logic control unit 41.
The logic control unit 41 is connected to the upper door zone signal sensor 21 and the lower door zone signal sensor 22, and sends a door zone effective signal to the elevator main controller 51 upon receiving an effective signal of the upper door zone signal sensor 21 and an effective signal of the lower door zone signal sensor 22, and controls the first door closing switch and the second door closing switch to be closed upon receiving a door closing command from the elevator main controller.
The logic control unit 41 also sends a door-closing feedback signal to the elevator main controller 51 when the first door-closing switch and the second door-closing switch are closed.
In an embodiment of the present invention, the elevator main controller 51 further sends a door closing command to the logic control unit 41 when the elevator car door is in an open state, and receives a door zone valid signal and the upper leveling sensor outputs an invalid signal or the lower leveling sensor outputs an invalid signal. Thereby achieving the re-leveling function.
In an embodiment of the present invention, the logic control unit 41 further controls the first and second gate sealing switches to be turned off when receiving the invalid signal output by the upper gate region signal sensor 21 or the invalid signal output by the lower gate region signal sensor 22. Thereby realizing the protection function of the accidental movement of the car.
The elevator safe operation system in this embodiment belongs to the same concept as the elevator safe operation method in the embodiment corresponding to fig. 1 and 3, and the specific implementation process is described in detail in the corresponding method embodiment, and the technical features in the method embodiment are correspondingly applicable in the apparatus embodiment, which is not described herein again.
The embodiment of the present invention further provides an elevator safe operation device 6, the device 6 may specifically be configured by combining an elevator main controller, a programmable electronic device and related hardware, as shown in fig. 6, the elevator safe operation device 6 includes a memory 61 and a processor 62, the memory 61 stores a computer program executable by the processor 62, and the processor 62 implements the steps of the elevator safe operation method described above when executing the computer program.
The elevator safe operation device 6 in this embodiment is the same as the elevator safe operation method in the embodiment corresponding to fig. 3, and the specific implementation process is described in detail in the corresponding method embodiment, and the technical features in the method embodiment are all applicable in this device embodiment, which is not described herein again.
The embodiment of the invention also provides a computer readable storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the elevator safe operation method are realized. The computer-readable storage medium in this embodiment belongs to the same concept as the elevator safe operation method in the embodiment corresponding to fig. 3, and the specific implementation process thereof is described in detail in the corresponding method embodiment, and the technical features in the method embodiment are all correspondingly applicable in this device embodiment, which is not described herein again.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
It is obvious to those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and modules are merely illustrated in terms of division, and in practical applications, the foregoing functions may be distributed as needed by different functional units and modules. Each functional unit and module in the embodiments may be integrated in one processor, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed elevator safe operation method, system and apparatus can be implemented in other ways. For example, the elevator safety run system embodiments described above are merely illustrative.
In addition, functional units in the embodiments of the present application may be integrated into one processor, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any physical or interface switching device, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signal, telecommunication signal, software distribution medium, etc., capable of carrying said computer program code. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (16)
1. A method for safe operation of an elevator, the method being applied to a programmable electronic device, the method comprising:
acquiring a first gate area signal and a second gate area signal;
when the first door area signal and the second door area signal are both effective, a door area effective signal is sent to an elevator main controller;
when a door sealing instruction from the elevator main controller is received, controlling a door sealing switch group to be closed so as to short-circuit a door lock loop, wherein the door sealing instruction is generated by the elevator main controller according to the door area effective signal and in combination with the elevator running state;
and after the door sealing switch group is closed, sending a door sealing feedback signal to the elevator main controller to enable the elevator main controller to execute door opening in advance or leveling operation.
2. The elevator safe operation method according to claim 1, characterized in that the method further comprises:
and controlling the door sealing switch group to be switched off when the first door area signal is detected to be invalid or the second door area signal is detected to be invalid.
3. The elevator safe operation method according to claim 1 or 2, characterized in that the door-sealing switch group comprises a first door-sealing switch and a second door-sealing switch, the first door zone signal is output through an upper door zone signal sensor, the second door zone signal is output through a lower door zone signal sensor, the upper door zone signal sensor and the lower door zone signal sensor are positioned between an upper leveling sensor and a lower leveling sensor, and the upper door zone signal sensor and the lower door zone signal sensor are respectively triggered by a magnetic separation plate in a hoistway to output effective signals.
4. The elevator safe operation method according to claim 1, characterized in that the method further comprises:
upon receiving a door-closing command from the elevator main controller, controlling a first additional brake switch and a second additional brake switch, which are connected in series in an additional brake control loop, to be closed.
5. A safe operation method of an elevator is characterized by being applied to an elevator main controller, and the method comprises the following steps:
receiving a gate region valid signal from a programmable electronic device;
generating a door sealing instruction according to the door zone effective signal and the elevator running state, and sending the door sealing instruction to the programmable electronic device so that the programmable electronic device controls the door sealing switch group to be closed;
and receiving a door sealing feedback signal from the programmable electronic device, and executing door opening in advance or leveling operation.
6. The elevator safe operation method according to claim 5, wherein the generating of the door closing command according to the door zone valid signal and the elevator operation state comprises:
and generating a door sealing instruction according to the door zone effective signal when the elevator car door is in an open state and the signal of the upper leveling sensor is invalid or the signal of the lower leveling sensor is invalid.
7. The elevator safe operation method according to claim 5 or 6, characterized in that the door sealing switch group comprises a first door sealing switch and a second door sealing switch, and the first door sealing switch and the second door sealing switch are connected in series and then connected in parallel with the door lock loop;
the gate region valid signal is generated when the first gate region signal and the second gate region signal are valid;
first door district signal is through last door district signal sensor output, second door district signal is through lower door district signal sensor output, last door district signal sensor and lower door district signal sensor are located between last flat bed sensor and the lower flat bed sensor, just go up door district signal sensor and lower door district signal sensor and trigger the output valid signal by the magnetism proof board in the well respectively.
8. An elevator safety operation device, characterized by comprising a memory and a processor, wherein the memory stores a computer program operable on the processor, and the processor, when executing the computer program, implements the steps of the elevator safety operation method according to any one of claims 5 to 7.
9. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the elevator safety running method according to one of claims 5 to 7.
10. A programmable electronic device is characterized by comprising a logic control unit, a switch control unit and a door sealing switch group, wherein the switch control unit is connected to the control end of the door sealing switch group;
the logic control unit is used for sending a door zone effective signal to the elevator main controller when the received first door zone signal and the second door zone signal are both effective signals; the logic control unit sends a closing instruction to the switch control unit when receiving a door closing instruction from the elevator main controller, and sends a door closing feedback signal to the elevator main controller after the door closing switch group is closed;
and the switch control unit is used for controlling the closing of the door sealing switch group when receiving a closing instruction from the logic control unit so as to short-circuit the door lock loop.
11. The programmable electronic device of claim 10, wherein the programmable electronic device comprises a first interface for connecting to an elevator main controller, and the logic control unit sends a door zone valid signal to the elevator main controller through the first interface;
the programmable electronic device comprises a second interface used for being connected with an upper door area signal sensor, a third interface used for being connected with a lower door area signal sensor and a fourth interface used for being connected with an elevator main controller, a first door area signal is obtained from the upper door area signal sensor through the second interface, a second door area signal is obtained from the lower door area signal sensor through the third interface, and a door closing instruction is obtained from the elevator main controller through the fourth interface;
the programmable electronic device comprises a fifth interface for connecting a door lock loop of an elevator, and the door sealing switch group is connected to the fifth interface;
the programmable electronic device further comprises a plurality of isolation units, and the logic control unit is connected to the second interface, the third interface and the fourth interface through the isolation units respectively.
12. The programmable electronic device according to claim 10, wherein the logic control unit controls the gate-sealing switch set to be turned off by the switch control unit when detecting that the first gate area signal is invalid or the second gate area signal is invalid.
13. The programmable electronic device of claim 10, further comprising a first additional brake switch, a second additional brake switch, and a sixth interface, and wherein the first additional brake switch and the second additional brake switch are connected to the sixth interface;
the switch control unit is connected to the control ends of the first additional brake switch and the second additional brake switch, and the logic control unit controls the first additional brake switch and the second additional brake switch to be closed through the switch control unit when receiving a door sealing command from an elevator main controller.
14. An elevator safety operation system, characterized by comprising an elevator main controller, a door lock loop, a sensing device and a programmable electronic device according to any one of claims 10-13;
the sensing device comprises an upper gate area signal sensor and a lower gate area signal sensor, and the upper gate area signal sensor and the lower gate area signal sensor are connected to the logic control unit of the programmable electronic device;
the elevator main controller is connected with the logic control unit, generates a door sealing instruction according to a door zone effective signal from the logic control unit and an elevator running state, and sends the door sealing instruction to the logic control unit; the elevator main controller also executes the operation of opening the door in advance or leveling again when receiving a door sealing feedback signal from the logic control unit.
15. The elevator safe operation system of claim 14, wherein the elevator master controller generates a door-sealing command based on the door zone valid signal when the elevator car door is open and the upper landing sensor signal is invalid or the lower landing sensor signal is invalid.
16. The elevator safe operation system according to claim 14, wherein the door sealing switch group comprises a first door sealing switch and a second door sealing switch, and the first door sealing switch and the second door sealing switch are connected in series and then connected in parallel with the door lock loop;
the upper door area signal sensor and the lower door area signal sensor are located between the upper leveling sensor and the lower leveling sensor, and the upper door area signal sensor and the lower door area signal sensor are respectively triggered by a magnetic isolation plate in a well to output effective signals.
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| CN201910942661.9A CN110723627A (en) | 2019-09-30 | 2019-09-30 | Elevator safe operation method, system, equipment, storage medium and electronic device |
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