Artificial Intelligence-Based Two-Way Fall Protection Elevator and Its Control Method

Abstract

The present invention discloses a two-way anti-falling protection elevator based on artificial intelligence and its control method. The elevator includes a hoistway and a control system. At least one car is arranged in the hoistway, and the control system controls the car to move up and down and / or left and right in the hoistway. A guide rail is installed on the hoistway, and the car moves up and down and / or left and right along the guide rail. A safety unit and a detection unit are arranged on the guide rail. Among them, the safety unit is composed of a safety positioning structure and a two-way safety seat. The safety positioning structure has a safety RFID, and the detection unit has a detection RFID. Both the safety RFID and the detection RFID can mark the absolute floor value. The safety RFID is used for floor detection, car speed detection, car balance detection, etc.; the detection unit is used for detecting interlayer speed and calibrating floors, etc., to achieve non-overstepping of floors when speeding. When the car is speeding up or down and passes through the two-way safety seat, the car will be intercepted and stopped at a determined position, achieving the purpose of safety protection and having high safety performance.

Description

Technical Field

[0001] The present invention relates to the field of mechanical technology, and in particular to an artificial intelligence-based two-way anti-falling protection elevator and its control method applied to newly built house structures or used for the upgrading and transformation of existing old elevators. Background Art

[0002] As we all know, the falling of traditional elevators, "elevator frights" often occur. In particular, it is helpless in the face of catastrophic events such as severe overloading. The reason is a structural problem. The traditional anti-falling safety structure and action process of the elevator: speed limiter (triggered by overspeed) --- steel wire rope --- safety gear control mechanism ---- safety gear (clamping and friction against the guide rail until it stops). The speed limiter is triggered by centrifugal force (overspeed). Taking 2 m / s as an example, the qualified action speed range is 2.3 - 2.63 m / s. The specific triggering action speed depends on the working conditions of the speed limiter. The conduction time of the steel wire rope and the lifting time of the safety gear control mechanism are uncertain. The safety gear consumes kinetic energy by clamping and friction against the guide rail until it stops, and the sliding distance is uncertain. These three uncertainties ultimately lead to the inability to accurately locate where the car can stop. If it stops in the middle of the floor, rescue is difficult, and the passengers may also be secondarily injured due to being trapped for too long or climbing out of the car. It is even unable to protect against severe overloading.

[0003] Elevators are an important part of civil buildings and important facilities for social operation; the actual use effect of existing elevator falling safety protection devices is not very ideal, and they have complex structures and low safety performance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an artificial intelligence-based two-way anti-falling protection elevator with high safety performance and novel structure.

[0005] To solve the above technical problem, the technical solution adopted by the present invention is that the artificial intelligence-based two-way anti-falling protection elevator includes a hoistway and a control system. At least one car is arranged in the hoistway, and the control system controls the car to move up and down and / or left and right in the hoistway. It is characterized in that a guide rail is installed on the hoistway, and the car moves up and down and / or left and right along the guide rail; a safety unit and a detection unit are arranged on the guide rail. Among them, the safety unit is composed of a safety positioning structure and a two-way safety seat. The safety positioning structure has a safety RFID, and the detection unit has a detection RFID; both the safety RFID and the detection RFID can mark the absolute floor value.

[0006] In the above technical solution, a security unit and a detection unit based on artificial intelligence are adopted. Among them, the security unit is used for floor detection, car speed detection, car balance detection, etc.; the detection unit is used for detecting inter-floor speed and calibrating floors, etc., to achieve non-overstepping of floors when speeding. During normal-speed operation, when the car passes through the security unit, the car descends smoothly. When ascending or descending at high speed, when the car passes through the two-way security seat, the car will be intercepted and stopped at a determined position, achieving the purpose of safety protection, with high safety performance and novel structure. Security RFID and detection RFID are adopted, with larger information volume and faster response speed. The two-way referred to in the present invention means upward rush and fall.

[0007] A further improvement lies in that a number of safety positioning fixing holes are also provided on the safety positioning structure for fixedly connecting the safety positioning structure to the guide rail on the hoistway; the two-way security seat has a guide sliding member, a locking card, and a security seat fixing hole.

[0008] When descending at high speed, when the car descends through the two-way security seat, the car will be intercepted and the locking card will lock the car, thereby intercepting the car.

[0009] A further improvement lies in that the guide sliding member is divided into an upper guide sliding fixing block and a lower guide sliding fixing block, and the locking card is movably fixed between the upper guide sliding fixing block and the lower guide sliding fixing block; wherein, the locking card is composed of two semi-circular locking cards connected by a spring, the semi-circular locking card has a movable fixing hole and a semi-circular notch, and the two semi-circular notches form the bayonet of the locking card; both the upper guide sliding fixing block and the lower guide sliding fixing block have fixing columns inserted into the movable fixing hole.

[0010] The guide sliding member cooperates with the components on the car. In the present invention, the guide sliding member first guides the component to be locked on the car, so that it quickly contacts the locking card and is locked by the locking card; the two semi-circular notches form the bayonet of the locking card. When the component to be locked on the car contacts the bayonet, the spring connecting the two semi-circular locking cards is forced outwards due to extrusion, the bayonet increases, and when the component to be locked completely enters the bayonet, the spring resets and completely locks the component to be locked; both the upper guide sliding fixing block and the lower guide sliding fixing block have fixing columns inserted into the movable fixing hole, so that when the spring is forced outwards due to extrusion, the two semi-circular locking cards have space to move outwards at relatively fixed positions.

[0011] A further improvement lies in that the upper guide sliding fixing block and the lower guide sliding fixing block have the same structure; the upper guide sliding fixing block contracts from the upper opening inwards to the lower opening, both the upper opening and the lower opening are circular, and the lower opening is close to the bayonet of the locking card; correspondingly, the lower opening of the lower guide sliding fixing block is close to the bayonet of the locking card.

[0012] The upper guide sliding fixing block contracts inward from the upper opening to the lower opening, which can better guide the components to be locked on the car; both the upper opening and the lower opening are circular, reducing the obstruction of the components to the car and preventing the car from vibrating and jolting, which may cause uneasiness among the passengers in the car; the lower opening of the lower guide sliding fixing block is close to the bayonet of the lock catch. When an abnormality occurs during the upward movement of the car, the car can also be locked to intercept the car.

[0013] A further improvement lies in that a bracket and a control unit are provided at the bottom or top of the car, and an RFID reader / writer detector, a smart control board, a voice coil motor and a bracket pulley are installed on the bracket and the control unit; the safety push rod is driven by the voice coil motor under the control of the smart control board to perform retracting and pushing actions; a conical rod is provided on the safety push rod, and grooves for engaging with the lock catch are provided at both the upper and lower ends of the conical rod.

[0014] A further improvement lies in that the bracket and the control unit include a bracket body, and the RFID reader / writer detector is connected to the bracket body; a push rod assembly is further included, and the push rod assembly retracts or extends along the bracket pulley on the bracket body; the safety push rod is part of the push rod assembly.

[0015] A further improvement lies in that the smart control board is located inside the bracket body; the voice coil motor is also located inside the bracket body and is controlled by the smart control board to drive the push rod assembly to perform retracting and pushing actions along the bracket pulley.

[0016] A further improvement lies in that a plurality of detection unit fixing holes are provided on the detection unit for fixedly connecting the detection unit to the guide rail on the hoistway; guide shoes are provided on the car.

[0017] Another problem to be solved by the present invention is to provide a control method for a two-way anti-falling protection elevator based on artificial intelligence, including the following steps:

[0018] S1: Set the normal running speed of the elevator car between adjacent floors up and down.

[0019] S2: When going down, pass by the upper adjacent safety unit to perform a safety signal scan, and pass by the detection unit entering this floor to perform a detection signal scan. The smart control board receives the transmitted safety signal and detection signal, and then analyzes and records the running state of the elevator.

[0020] During normal operation and docking, when entering the safety unit scanning area, the elevator is recalibrated to the normal operating state again. The safety push rod is pushed out, and precise alignment with the landing is carried out. The landing floor where it docks is calibrated and recorded. The door is opened for passengers to enter and exit the elevator, and wait for the car door to close. During this period, the safety push rod is always in the pushed-out state to provide protection during passenger boarding and alighting, effectively preventing catastrophic events such as overloading. After the door closes safely, the safety push rod is retracted, and the car descends;

[0021] When descending at high speed, the safety push rod is instantly pushed out to intercept the speeding elevator, and an overspeed message is sent. After the car is intercepted and stops stably, the door is opened, which is exactly the normal door-opening position of the elevator. Passengers get out of the elevator and wait for the fault to be eliminated and then reset;

[0022] When ascending, during the ascending period, when the car is detected to be speeding by the safety unit and the detection unit, an ascending overspeed signal is sent immediately. The safety push rod is instantly pushed out to intercept the speeding elevator, and an overspeed message is sent. After the car is intercepted and stops stably, the door is opened, and passengers get out of the elevator. Wait for the fault to be eliminated and then reset.

[0023] A further improvement lies in that in step S2, the operating mode of the safety push rod is as follows:

[0024] S21: Constantly pushed out. The safety push rod is often in the pushed-out state. When the safe speed or time passes through the safety unit, the safety push rod is retracted. After the car passes smoothly, the safety push rod is immediately pushed out; when overspeed occurs, the safety push rod is not retracted, and the safety unit intercepts the overspeed car;

[0025] S22: Constantly retracted. The safety push rod is often in the retracted state. Only when the car is detected to be speeding by the detection unit, the safety push rod is pushed out, and the safety unit intercepts the overspeed car. In this state, the safety push rod is pushed out during the period from leveling -> car door opening -> car door closing to protect against falling. Description of the Drawings

[0026] The following is a further detailed description in conjunction with the drawings and the embodiments of the present invention:

[0027] Figure 1 It is the overall structure diagram of the two-way anti-fall protection elevator based on artificial intelligence of the present invention;

[0028] Figure 2 It is Figure 1 The enlarged structure schematic diagram of part A in

[0029] Figure 3 It is Figure 1 The structure schematic diagram of the two-way safety seat in

[0030] Figure 4 It is Figure 3 The front structure schematic diagram of the two-way safety seat in

[0031] Figure 5 It is Figure 4Cross-sectional view A-A;

[0032] Figure 6 is Figure 4 Cross-sectional view B-B;

[0033] Figure 7 is Figure 3 Exploded assembly structure diagram of the two-way safety seat;

[0034] Figure 8 Structure diagram of the semi-circular lock in the two-way safety seat;

[0035] Figure 9 Structure diagram of the detection unit;

[0036] Figure 10 is Figure 2 Structure diagram of the bracket and control part;

[0037] Figure 11 is Figure 2 Structure diagram of the push rod assembly;

[0038] Figure 12 is Figure 11 Enlarged view of the conical rod end head;

[0039] Figure 13 Structure diagram of the safety positioning structure;

[0040] Wherein: 1 - hoistway; 2 - car, 201 - guide shoe; 3 - guide rail; 4 - safety unit, 401 - safety RFID, 402 - two-way safety seat, 403 - safety positioning fixing hole, 404 - guide sliding part, 405 - lock, 406 - upper guide sliding fixing block, 407 - lower guide sliding fixing block, 408 - spring, 409, 4010 - semi-circular lock, 4011 - movable fixing hole, 4012 - semi-circular notch, 4013 - bayonet, 4014 - fixed column, 4015 - upper end opening, 4016 - lower end opening; 4017 - safety positioning structure; 4018 - safety seat fixing hole; 5 - detection unit, 501 - detection RFID, 502 - detection unit fixing hole; 6 - bracket and control part; 601 - RFID reading and writing detector, 602 - intelligent control board, 603 - voice coil motor installation position, 604 - bracket pulley, 605 - safety push rod, 606 - bracket body, 607 - push rod assembly, 608 - conical rod, 609 - groove. Specific implementation method

[0041] Such as Figure 1The following shows an AI-based two-way anti-falling protection elevator of the present invention, which includes a hoistway 1 and a control system. At least one car 2 is arranged in the hoistway 1, and the control system controls the car 2 to move up and down and / or left and right in the hoistway 1. A guide rail 3 is installed on the hoistway 1, and the car 2 moves up and down and / or left and right along the guide rail 3; up and down and / or left and right movement; A plurality of safety units 4 and detection units 5 are arranged on the guide rail 3. Among them, the safety unit 4 is composed of a safety positioning structure 4017 and a two-way safety seat 402. The safety positioning structure 4017 has a safety RFID 401, and the detection unit 5 has a detection RFID 501; both the safety RFID 401 and the detection RFID 501 can mark the absolute floor value, such as Figure 9 as shown; the safety unit 4 is a component of the anti-falling two-way protection unit.

[0042] such as Figure 13 as shown, several safety positioning fixing holes 403 are further arranged on the safety positioning structure 4017, such as Figure 3 as shown, for fixedly connecting the safety positioning structure 4017 with the guide rail 3 on the hoistway 1; the two-way safety seat 402 has a guide sliding member 404, a lock card 405 and a safety seat fixing hole 4018.

[0043] such as Figures 4 - 8 as shown, the guide sliding member 404 is divided into an upper guide sliding fixing block 406 and a lower guide sliding fixing block 407, and the lock card 405 is movably fixed between the upper guide sliding fixing block 406 and the lower guide sliding fixing block 407; among them, the lock card 405 is composed of two semi-circular lock cards 409, 4010 connected by a spring 408. Both the semi-circular lock cards 409, 4010 have movable fixing holes 4011 and semi-circular notches 4012, and the two semi-circular notches 4012 form a bayonet 4013 of the lock card 405; both the upper guide sliding fixing block 406 and the lower guide sliding fixing block 407 have fixed columns 4014 inserted into the movable fixing holes 4011.

[0044] In this embodiment, the upper guide sliding fixing block 406 and the lower guide sliding fixing block 407 have the same structure; the upper guide sliding fixing block 406 contracts from the upper end opening 4015 to the lower end opening 4016. Both the upper end opening 4015 and the lower end opening 4016 are circular, and the lower end opening 4016 is close to the bayonet 4013 of the lock card 405; correspondingly, the lower end opening of the lower guide sliding fixing block 407 is close to the bayonet 4013 of the lock card 405.

[0045] such as Figure 1 as shown, a bracket and a control part 6 are arranged at the bottom (or the top) of the car, such as Figures 10 - 12As shown, an RFID reader / writer detector 601, an intelligent control board 602, a voice coil motor (which is an existing one, Figure 10 and the voice coil motor mounting position 603 is shown in it) and a bracket pulley 604 are installed on the bracket and the control unit 6; under the control of the intelligent control board 602, the safety push rod 605 is driven by the voice coil motor to perform retracting and pushing actions; a conical rod 608 is arranged on the safety push rod 605, and grooves 609 for engaging with the lock card 405 are arranged at both the upper and lower ends of the conical rod 608.

[0046] The bracket and the control unit 6 include a bracket body 606, and the RFID reader / writer detector 601 is connected to the bracket body 606; it further includes a push rod assembly 607, and the push rod assembly 607 retracts or extends along the bracket pulley 604 on the bracket body 606, as Figure 2 shown; the safety push rod 605 belongs to a part of the push rod assembly 607.

[0047] The intelligent control board 602 is located inside the bracket body 606; the voice coil motor is also located inside the bracket body 606, and under the control of the intelligent control board 602, it drives the push rod assembly 607 to perform retracting and pushing actions along the bracket pulley 604.

[0048] A plurality of detection unit fixing holes 502 are arranged on the detection unit 5 for fixedly connecting the detection unit 5 to the guide rail 3 on the hoistway 1, as Figure 9 shown; guide shoes 201 are arranged on the car 2, as Figure 1 shown.

[0049] The control method of the two-way anti-falling protection elevator based on artificial intelligence in this embodiment includes the following steps:

[0050] S1: Set the normal running speed of the elevator car 2 between adjacent floors up and down.

[0051] S2: When going down, passing by the upper adjacent safety unit 4, perform a safety signal scan, and passing by the detection unit 5 entering this floor, perform a detection signal scan. The intelligent control board 602 receives the transmitted safety signal and detection signal, and then analyzes and records the running state of the elevator.

[0052] When normally running and docking, entering the scanning area of the safety unit 4, calibrate the elevator to be in the normal running state again, push out the safety push rod 605, perform precise alignment with the landing, calibrate and record the landing floor, open the door for passengers to enter and exit the elevator, wait for the car 2 to close the door. During this period, the safety push rod 605 is always in the pushed-out state to protect during the process of loading and unloading passengers, and can effectively prevent the occurrence of catastrophic events such as serious overloading. After the door is safely closed, retract the safety push rod 605, and the car 2 goes down.

[0053] When descending at high speed, the safety push rod 605 is instantaneously pushed out to intercept the overspeed elevator, an overspeed message is sent, and after the car 2 is intercepted and stopped stably, the door is opened at the normal door opening position of the elevator. The passengers get out of the elevator and reset after the fault is eliminated.

[0054] When ascending, during the ascending period, when the car 2 is detected to be overspeed by the safety unit 4 and the detection unit 5, an ascending overspeed signal is sent, the safety push rod 605 is instantaneously pushed out to intercept the overspeed elevator, an overspeed message is sent, and after the car 2 is intercepted and stopped stably, the door is opened and the passengers get out of the elevator and reset after the fault is eliminated.

[0055] In the step S2, the operating mode of the safety push rod 605 is as follows:

[0056] S21: Normally pushed out. The safety push rod 605 is often in the pushed-out state. When the safety speed or time passes through the safety unit 4, the safety push rod 605 retracts. After the car 2 passes smoothly, the safety push rod 605 is pushed out immediately; when overspeed occurs, the safety push rod 605 does not retract, and the safety unit 4 intercepts the overspeed car 2.

[0057] S22: Normally retracted. The safety push rod 605 is often in the retracted state. Only when the car 2 is detected to be overspeed by the detection unit 5, the safety push rod 605 is pushed out, and the safety unit 4 intercepts the overspeed car 2. In this state, the safety push rod is pushed out during the period from leveling -> car door opening -> car door closing to protect against falling.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements. For example, it is just a simple replacement of the application scenario, and the independently operable components involved in the present invention are used alone; these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-way anti-falling protection elevator based on artificial intelligence, comprising a hoistway and a control system. At least one car is arranged in the hoistway, and the control system controls the car to move up and down and / or left and right in the hoistway. It is characterized in that, A guide rail is installed on the hoistway, and the car moves up and down and / or left and right along the guide rail; a safety unit and a detection unit are arranged on the guide rail, wherein the safety unit is composed of a safety positioning structure and a bidirectional safety seat, the safety positioning structure has a safety RFID, and the detection unit has a detection RFID; both the safety RFID and the detection RFID can mark the absolute floor value; A number of safety positioning fixing holes are also arranged on the safety positioning structure for fixedly connecting the safety positioning structure with the guide rail on the hoistway; the bidirectional safety seat has a guide sliding member, a locking card and a safety seat fixing hole; The guide sliding member is divided into an upper guide sliding fixing block and a lower guide sliding fixing block, and the locking card is movably fixed between the upper guide sliding fixing block and the lower guide sliding fixing block; wherein, the locking card is composed of two semi-circular locking cards connected by a spring, the semi-circular locking card has a movable fixing hole and a semi-circular notch, and the two semi-circular notches form the clamping mouth of the locking card; fixed columns of the upper guide sliding fixing block and the lower guide sliding fixing block are respectively embedded into the movable fixing hole; A number of detection unit fixing holes are arranged on the detection unit for fixedly connecting the detection unit with the guide rail on the hoistway; a guide shoe is arranged on the car; The upper guide sliding fixing block and the lower guide sliding fixing block have the same structure; the upper guide sliding fixing block contracts from the upper end opening to the lower end opening, both the upper end opening and the lower end opening are circular, and the lower end opening is close to the clamping mouth of the locking card; correspondingly, the lower end opening of the lower guide sliding fixing block is close to the clamping mouth of the locking card; A bracket and a control part are arranged at the bottom or top of the car, and an RFID reading and writing detector, a smart control board, a voice coil motor and a bracket pulley are installed on the bracket and the control part; under the control of the smart control board, the safety push rod is driven by the voice coil motor to perform retracting and pushing actions; a conical rod is arranged on the safety push rod, and grooves engaged with the locking card are arranged at both the upper and lower ends of the conical rod.

2. The two-way anti-falling protection elevator based on artificial intelligence according to claim 1, wherein The bracket and the control part include a bracket body, and the RFID reading and writing detector is connected with the bracket body; a push rod assembly is also included, and the push rod assembly retracts or extends along the bracket pulley on the bracket body; the safety push rod is a part of the push rod assembly.

3. The two-way anti-falling protection elevator based on artificial intelligence according to claim 2, wherein The smart control board is located in the bracket body; the voice coil motor is also located in the bracket body and is controlled by the smart control board to drive the push rod assembly to perform retracting and pushing actions along the bracket pulley.

4. A control method for a two-way anti-falling protection elevator based on artificial intelligence, comprising the following steps: S1: Set the normal running speed of the elevator car up and down between adjacent floors; S2: When going down, scan the safety signal when passing by the safety unit on the adjacent upper layer, scan the detection signal when passing by the detection unit entering this layer, and the smart control board receives the transmitted safety signal and detection signal, and then analyzes and records the running state of the elevator; When the elevator stops during normal operation, it enters the scanning area of ​​the safety unit, calibrates the elevator to be in normal operation again, pushes out the safety push rod, accurately aligns the floor, calibrates and records the stop floor, opens the door for passengers to enter and exit the elevator, and waits for the car door to close. During this period, the safety push rod is always in the pushed-out state to protect passengers during boarding and alighting, which can effectively prevent catastrophic events such as over-interception. After the door is safely closed, the safety push rod is retracted and the car moves downward; When the elevator is going down at an excessive speed, the safety push rod is pushed out instantly to intercept the overspeed elevator and send an overspeed message. The elevator car opens the door after being intercepted and stopped. It is the normal door opening position of the elevator. Passengers walk out of the elevator and the door is reset after the fault is eliminated. When going up, when the safety unit and the detection unit detect that the car is overspeeding, an upward overspeed signal is sent, and the safety push rod is instantly pushed out to intercept the overspeed elevator, and an overspeed message is sent. After the car is intercepted and stopped, the door opens, and the passengers walk out of the elevator, and the elevator is reset after the fault is eliminated; In step S2, the safety push rod operates in the following manner: S21: Normal push-out, the safety push rod is often in the push-out state. When the safe speed or time passes the safety unit, the safety push rod is retracted, and the safety push rod is pushed out after the car passes smoothly; when overspeeding, the safety push rod is not retracted, and the safety unit intercepts the overspeeding car; S22: Normally retracted, the safety push rod is often in the retracted state. Only when the detection unit detects that the car is overspeeding, the safety push rod is pushed out and the safety unit intercepts the overspeeding car. In this state, the safety push rod is pushed out during leveling -> car door opening -> car door closing to protect against falling.

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