CN110759194A - Control method and control system using flat layer plugboard - Google Patents

Control method and control system using flat layer plugboard Download PDF

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Publication number
CN110759194A
CN110759194A CN201911022010.4A CN201911022010A CN110759194A CN 110759194 A CN110759194 A CN 110759194A CN 201911022010 A CN201911022010 A CN 201911022010A CN 110759194 A CN110759194 A CN 110759194A
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China
Prior art keywords
code
code segment
car
leveling switch
leveling
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CN201911022010.4A
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Chinese (zh)
Inventor
王珍珍
李琳
赵晓
李静
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Shanghai Step Electric Corp
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Shanghai Step Electric Corp
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Priority to CN201911022010.4A priority Critical patent/CN110759194A/en
Publication of CN110759194A publication Critical patent/CN110759194A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/3492Position or motion detectors or driving means for the detector
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00Control systems of elevators in general
    • B66B1/34Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings

Abstract

The embodiment of the invention relates to the field of elevator control, and discloses a control method and a control system by using a flat-layer plugboard, which comprise the following steps: dividing a flat layer plugboard of each layer in a well into a plurality of code sections, and coding the code sections according to the structures of the code sections; acquiring the position of a leveling switch positioned on the car according to the position of the car; acquiring the absolute position of each code segment in a shaft according to the reference position of the floor where the lift car is located and the length of the code segment, wherein the reference position of the floor in the shaft is consistent with the central position of the flat-layer inserting plate; when the positions of the leveling switches are respectively located in the absolute positions of the code segments and the codes of the code segments are designated codes, leveling switch control signals are respectively output.

Description

Control method and control system using flat layer plugboard
Technical Field
The embodiment of the invention relates to the field of elevator control, in particular to a control method and a control system by using a flat bed plugboard.
Background
In a shaft of an elevator, a leveling flashboard is required to be installed in a certain area of each floor, the leveling flashboard is a rectangular solid iron plate generally, and when two leveling switches on a car run to a leveling shift, the elevator car is considered to run to a leveling position of the floor. The photoelectric switch is generally U-shaped, two arms of the switch emit light and receive light, when the lift car moves to a flat layer area, a light path is blocked by the light plate, the light path is disconnected, an electric signal change can be transmitted to the main control board, and the main control board can judge whether the current lift reaches the flat layer area according to the collected flat layer switch signal.
The inventor finds that at least the following problems exist in the prior art: in the existing control method using the flat bed plugboard, the current position of the car is obtained by limiting the action area of the flat bed switch and adopting a fixed algorithm. However, this method requires that the lengths of the boards in each layer are consistent, and it is impossible to adjust different boards, and this algorithm is only suitable for solid boards, but not for boards with complex structures, such as code boards with regular gaps, so the control method using the flat-layer board is not suitable for the code boards.
Disclosure of Invention
The embodiment of the invention aims to provide a control method and a control system utilizing a flat bed plugboard.
In order to solve the above technical problems, an embodiment of the present invention provides a control method using a flat-layer plugboard, including dividing the flat-layer plugboard of each layer in a hoistway into a plurality of code segments, and encoding the code segments according to the structure of the code segments; acquiring the position of a leveling switch positioned on the car according to the position of the car; acquiring the absolute position of each code segment in a shaft according to the reference position of the floor where the lift car is located and the length of the code segment, wherein the reference position of the floor in the shaft is consistent with the central position of the flat-layer inserting plate; and when the positions of the leveling switches are respectively located in the absolute positions of the code segments and the codes of the code segments are the specified codes, respectively outputting leveling switch control signals.
An embodiment of the present invention further provides a control system using a flat-layer interposer, including: the elevator comprises a leveling flashboard positioned on each floor, a leveling switch positioned on a car, an encoder and a Programmable Logic Controller (PLC), wherein the encoder is connected to the PLC; the flat layer plugboard is divided into a plurality of code sections, and the code sections have different codes according to different structures; the encoder is used for acquiring elevator operation parameters and outputting signals to the PLC according to the elevator operation parameters; the PLC is used for receiving the output signal of the encoder, acquiring the position of the car, calculating the position of the leveling switch according to the position of the car, and calculating the absolute position of each code segment in the shaft according to the reference position of the floor where the car is located and the length of the code segment; the PLC judges whether the leveling switch is positioned in the code segment according to the position of the leveling switch and the absolute position of each code segment in the shaft; when the leveling switches are respectively positioned in each code segment, the PLC respectively outputs leveling switch control signals according to the codes of the code segments.
Compared with the prior art, in the embodiment of the invention, the flat-layer plugboard in the shaft of the straight elevator is divided into a plurality of code segments, each code segment is coded and the corresponding length of the code segment is set, and the absolute position of each code segment in the shaft is calculated according to the reference position in each floor shaft and the length of the code segment; the method is suitable for solid plugboards and complex plugboards with grooves, can accurately realize the application of various complex flat plugboards in a well system, and simultaneously allows the structure of the flat plugboard to be adjusted according to actual conditions, and can solve the problem of inconsistent lengths of the flat plugboards of each floor by changing the codes of the flat plugboards.
In addition, the center position of the flat layer plugboard is used for dividing the flat layer plugboard into an upper half plugboard and a lower half plugboard, and the upper half plugboard and the lower half plugboard are respectively divided into a plurality of code sections, wherein the code sections are symmetrically distributed at the center position of the flat layer plugboard, and a specific flat layer plugboard structure is provided through the mode.
In addition, the code segments are coded according to the structures of the code segments, the structures for distinguishing the code segments are grooves or bulges, and the structures of the code segments are distinguished through coding, so that the PLC can output the control signals of the flat-layer switch according to the coding conveniently.
In addition, the leveling switch comprises an upper leveling switch and a lower leveling switch, the position of the car is consistent with the middle positions of the upper leveling switch and the lower leveling switch, and the positions of the upper leveling switch and the lower leveling switch are respectively obtained according to the position of the car and the distance between the upper leveling switch and the lower leveling switch, so that the obtaining mode of the positions of the upper leveling switch and the lower leveling switch is provided.
In addition, the code segment comprises at least a first code segment and a second code segment, the length of the first code segment is the length of the first code segment, and the length of the second code segment is the length of the second code segment; acquiring the absolute position of the first code segment in the shaft according to the reference position of the floor where the lift car is located at present and the length of the first code segment; and acquiring the absolute position of the second code segment in the well according to the absolute position of the first code segment in the well and the length of the second code segment, thereby providing a mode for acquiring the absolute position of each code segment in the well.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a schematic view of a car and a leveling fork in a floor according to a control method using the leveling fork in a first embodiment of the present invention;
fig. 2 is a view illustrating a structure of a floor deck according to a control method using a flat-bed gate according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a control method using a flat bed interposer according to a first embodiment of the present invention;
fig. 4 is a view illustrating a structure of a floor deck according to a control method using a flat-bed gate according to a first embodiment of the present invention;
fig. 5 is a schematic diagram of a three-layer code board structure of a control method using a flat layer plug board according to a first embodiment of the present invention;
fig. 6 is a schematic structural view of a three-layer common interposer according to a second embodiment of the present invention, which utilizes a control method of a flat interposer;
fig. 7 is a schematic structural diagram of a flat-layer board control system according to a third embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that numerous technical details are set forth in order to provide a better understanding of the present application in various embodiments of the present invention. However, the technical solution claimed in the present application can be implemented without these technical details and various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not constitute any limitation to the specific implementation manner of the present invention, and the embodiments may be mutually incorporated and referred to without contradiction.
A first embodiment of the present invention relates to a control method using a flat bed interposer. As shown in fig. 1, the flat bed inserting plate is a rectangular solid iron plate installed in a certain area of each floor in the elevator shaft. In some embodiments, the leveling switches include upper and lower leveling switches, and are typically mounted at a top location of the car. The flat layer switch generally includes two types, namely, a photoelectric flat layer switch and a magneto flat layer switch, and the embodiment of the present invention is described by taking the photoelectric flat layer switch as an example, but the embodiment of the present invention is not limited to the photoelectric flat layer switch. The flat switch is generally U-shaped, two arms of the switch emit light and receive light, when the lift car moves to a flat area, a light path is blocked by a flat inserting plate of the flat area, the light path is disconnected at the moment, and the generated electric signal change can be transmitted to the control panel, so that the lift is controlled to reach the flat area. The magneto-electric flat switch changes the optical circuit into a magnetic circuit, and the flat plug board matched with the magneto-electric flat switch is a magnetic isolation board, and the control principle is the same as that of the photo-electric flat switch. As shown in fig. 1, assuming that a certain floor in the hoistway is a Z0 floor, when the car moves upwards to a position 1, the lower floor switch starts to enter a Z0 floor landing board; the lower leveling switch starts to enter a Z0 level leveling plug board; when the car moves up to "position 2", the lower landing switch begins to disengage from the Z0 landing leg. The current position of the car is the middle position of the upper leveling switch and the lower leveling switch, namely the middle position of the interval between the leveling switches; in addition, the middle position of the Z0 layer insert plate coincides with the reference position of the Z0 layer.
The control method of the flat bed plugboard is realized in a straight elevator shaft simulation system, the system is called as a shaft simulation system for short, is used for simulating straight elevator shaft data in a straight elevator simulation test for testing software and hardware of a straight elevator control system, various switches and other necessary components in a shaft are simulated by a Programmable Logic Controller (PLC), such as the flat bed plugboard, the flat bed switch interval, a Z0 floor reference position, a car current position and the like, and registers corresponding to the specific components are as follows:
component part PLC register Unit of
Interval of flat layer switch D46 mm
Length of flat inserting plate D4 mm
Z0 layer reference position D(200+Z0*2) Pulse of light
Current position of car C251 Pulse of light
Pulse conversion factor D58 Per mm
The unit of the interval between the leveling switches and the length of the inserting plate is millimeter (mm), the unit of the Z0 floor reference position and the current position of the lift car is pulse, and in order to unify the units and facilitate the subsequent comparison of the positions of the two, a pulse conversion coefficient D58 is introduced, and the relevant well data is converted into a pulse value from millimeter (mm). Wherein the register D4 is shared by the flat patch lengths of all floors. In addition, the registers in the table are for convenience of illustration only, and are not limited to the PLC registers listed herein.
In the current control method using the floor switch, it is set that when both floor switches on the car run into the floor switch, the car is considered to run to the floor position, and thus the operation regions of the Z0 floor lower and upper floor switches are between the Z0 floor switch position and the Z0 floor switch position (as shown in fig. 1). At the moment, the area range of the current position of the car can be calculated according to the Z0 floor reference position, the distance between the upper and lower floor switches and the length of the floor inserting plate, and the specific calculation method is as follows:
in the lower landing switch action area, the current position C251E [ D10, D12] of the car
Similarly, in the action area of the upper leveling switch, the current position C251E [ D14, D16] of the car is
The disadvantage of this method is that the calculation formula is used to determine the current position of the car, and the length of each floor board must be the same and cannot be adjusted separately, which results in that the method is only suitable for solid boards with consistent length and is not suitable for the floor boards with complex structure (such as the floor board shown in fig. 2). The complex flat-layer plugboard is also called a code board, is a novel flat-layer plugboard with codes, and regularly opens a plurality of gaps on the basis of the solid plugboard. The code plate codes are used for correcting the floor positions, so that the code plate codes used by each floor are unique. Obviously, the control method using the flat layer plug board currently used is not suitable for the code board.
Accordingly, a first embodiment of the present invention proposes a control method using a flat bed interposer. In the embodiment, a flat-layer plugboard of each layer in a well is divided into a plurality of code segments, and the code segments are coded according to the structures of the code segments; acquiring the position of a leveling switch positioned on the car according to the position of the car; acquiring the absolute position of each code segment in a shaft according to the reference position of the floor where the lift car is located and the length of the code segment, wherein the reference position of the floor in the shaft is consistent with the central position of the flat-layer inserting plate; when the positions of the flat switches are respectively located in the absolute positions of the code segments and the codes of the code segments are the designated codes, the control signals of the flat switches are respectively output. The specific implementation flow is shown in fig. 3, and includes:
step 101, dividing a flat layer plugboard of each layer in a well into a plurality of code segments, and coding the code segments according to the structure of the code segments.
Specifically, the code plate is first segmented, as shown in fig. 4, the code segment is divided into an upper half code plate and a lower half code plate, the upper half code plate is further subdivided into 12 code segments of UL1-UL12, and the lower half code plate is subdivided into 12 code segments of DL1-DL 12. The corresponding registers to which the length of each code segment is allocated are listed in the following table:
namely, twelve code segment length registers corresponding to the upper half code plate are respectively D (1450+ n x 2), and n belongs to [1,12 ]; the twelve code segment length registers corresponding to the lower half code plate are respectively D (1480+ n x 2), and n belongs to [1,12 ]; converting the length of each code segment into a pulse value from millimeter through a pulse conversion system D58 to obtain a pulse value register corresponding to the length of twelve code segments of the upper half code plate:
D(1510+n*2)=D(1450+n*2)*D58,n∈[1,12];
and a pulse value register of twelve code segment lengths of the lower half code plate:
D(1540+n*2)=D(1480+n*2)*D58,n∈[1,12]。
taking a three-layer elevator as an example, the structure of each layer of stacking plates is shown in fig. 5, and it can be seen that the structures of the three layers of stacking plates are different. The number and length of the code segments of the lower half code plate and the lower half code plate are only examples, and are not limited to the number or length actually. The lengths of the code segments of each layer of code board are correspondingly assigned, and the specific registers and parameter tables are shown as the following table:
in addition, the codes of the code segments corresponding to the upper half code plate are UC1-UC12, and the codes of the code segments corresponding to the upper half code plate are DC1-DC 12; the code segment of the code plate shown in fig. 3 has a groove and a protrusion, and when the code segment is a groove, the code segment is coded as 0; when a code segment is salient, the code segment is encoded as 1. Whereby the upper half of the code plate code and the lower half of the code plate code are converted to decimal numbers:
the upper half code plate code and the lower half code plate code of a certain floor can be obtained by calculation according to the formula, and corresponding code plate code registers are distributed for floors from 1 to D0: the upper half of the code plate code registers on layers 1 to D0 are D1642 to D (1640+ D0 x 2); the lower half of the code plate code registers from 1 to D0 are D1772 to D (1770+ D0 x 2);
here, the coding of the code segment is only an example, and is not limited to the case where the groove code is 0, and the protrusion is 1, for example, the case where the groove code is 1, the protrusion code is 0, or the like, and the coding of the code segment is only used to distinguish the groove or the protrusion.
The following table shows the code assignment for the three-level board of fig. 5. The code plate structure of a certain floor is simulated through the length of each code segment and the code of each code segment, all floor code plates share a register of the length of each code segment, and the code plates of different floors are distinguished through the code of each floor code plate. For example, the top half of the first floor is coded 2558, corresponding to a binary 100111111110, i.e. simulating the structure of the top half of the first floor, and the corresponding register is D1642.
First half code board register First half code plate coding The lower half of the code board register Lower half of the code plate code
First floor D1642 2558 D1772 6
Second floor D1644 3062 D1774 3062
Three-storied building D1646 4094 D1776 2318
102, acquiring the position of a leveling switch on the car according to the position of the car;
as shown in fig. 1, the current positions of the lower leveling switch and the upper leveling switch can be calculated according to the current position of the car and the distance between the leveling switches, and specifically include:
current position of lower leveling switch:
current position of upper leveling switch:where D58 is the pulse scaling factor.
The current position of the lift car can acquire signals such as the rotation direction, the speed, the displacement and the like of the elevator traction machine through the encoder, the encoder outputs a pulse signal to the programmable logic controller PLC, and the programmable logic controller PLC judges through receiving the pulse signal fed back by the encoder.
And 103, acquiring the absolute position of each code segment in the shaft according to the reference position of the floor where the lift car is located and the length of the code segment.
The U0 position shown in fig. 4 is the center position of the code plate, which coincides with the reference position of the current floor, i.e., the code plate center position D1570 is Z0 floor reference position D (200+ Z0 × 2); and then according to the length of the code segment of the current code plate, the absolute position of each code segment of the code plate of the current floor in the well can be calculated:
setting the position registers of U1-U12 as D (1570+ n x 2), wherein n belongs to [1,12 ]; positions U1 to U12D (1570+ n 2) ═ D [1570+ (n-1) × 2] + D (1510+ n × 2), n ∈ [1,12 ];
let the D1-D12 position register be assigned as D (1600+ n x 2), where n ∈ [1,12 ]; positions D1-D12 are D1602 ═ D1570-D1542;
and positions D2 to D12:
d (1600+ n 2) ═ D [1600+ (n-1) × 2] -D (1540+ n 2), where n ∈ [2,12 ].
And step 104, respectively outputting the control signals of the leveling switches when the positions of the leveling switches are respectively located in the absolute positions of the code segments and the codes of the code segments are the designated codes.
Specifically, two flat switches can be used to determine whether the code segment currently corresponding to the flat switch is a protrusion or a groove. If the upper flat layer switch or the lower flat layer switch judges that the current corresponding code segment is convex, namely the code of the code segment is 1, judging whether the flat layer switch is in the code segment by the following method: the current position of the upper leveling switch, the current position of the lower leveling switch and the absolute position of the code segment in the shaft are obtained in the step 102, and the current position of the upper leveling switch, the absolute position of the corresponding code segment in the shaft, the current position of the lower leveling switch and the absolute position of the corresponding code segment in the shaft are respectively compared; and if the comparison result shows that the current position of the lower leveling switch is the same as the absolute position of the current code segment in the well, logically outputting the lower leveling switch, and if the current position of the upper leveling switch is the same as the absolute position of the current code segment in the well, logically outputting the upper leveling switch. If the upper flat layer switch or the lower flat layer switch judges that the current corresponding code segment is the groove segment, namely the code of the code segment is 0, the PLC switch logic can not output even if the flat layer switch is in the code segment.
The PLC outputs lower leveling switch and upper leveling switch logic to the elevator main control board according to the rule, and the elevator main control board acquires leveling switch signals given by the PLC to judge which floor the car is at and whether the car is at the leveling position (namely the door opening position).
A second embodiment of the present invention relates to a control method using a flat bed interposer. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: in a first embodiment, the flat layer insert plate is a complex version with recesses and protrusions. In the second embodiment of the present invention, the flat layer interposer is a common interposer.
Taking a three-deck elevator as an example, the inserting plate structures of the three-deck elevator in fig. 6 are completely the same. The number and length of the code segments of the lower half code plate and the lower half code plate are only for illustration, and are not limited to the number or length actually. Assigning the lengths of the code segments of each layer of code board, wherein the specific registers and parameters are shown in the following table:
the following table shows the coding assignments for the three-layer generic card of fig. 6. And simulating the plugboard structure of each layer by the length of each code segment and the coding of each code segment. For example, the code of the upper half code plate and the lower half code plate of each floor is 4095 decimal values, which corresponds to 111111111111 binary, i.e. the code plate represents a common code plate structure equivalent to only a protruding code segment and no groove code segment. That is to say, the upper flat layer switch or the lower flat layer switch judges that the current code segment is the convex segment, namely, the code segment codes are all 1, and when the flat layer switches are all in the code segment, the PLC switches the logic output. According to the rule, the PLC outputs a lower leveling switch and an upper leveling switch to the elevator main control board, and the elevator main control board acquires a leveling switch signal given by the PLC to judge whether the car is at a leveling position (namely, a door opening position).
First half code board register First half code plate coding The lower half of the code board register Lower half of the code plate code
First floor D1642 4095 D1772 4095
Second floor D1644 4095 D1774 4095
Three-storied building D1646 4095 D1776 4095
A third embodiment of the present invention relates to a PLC flat bed board plugging control system, including: the elevator comprises a leveling flashboard positioned on each floor, a leveling switch positioned on a car, an encoder and a Programmable Logic Controller (PLC), wherein the encoder is connected to the PLC; the flat layer plugboard is divided into a plurality of code sections, and the code sections have different codes according to different structures; the encoder is used for acquiring elevator operation parameters and outputting signals to the PLC according to the elevator operation parameters; the PLC is used for receiving the output signal of the encoder, acquiring the position of the car, calculating the position of the leveling switch according to the position of the car, and calculating the absolute position of each code segment in the shaft according to the reference position of the floor where the car is located and the length of the code segment; the PLC judges whether the leveling switch is positioned in the code segment according to the position of the leveling switch and the absolute position of each code segment in the shaft; when the leveling switch is respectively positioned in each code segment, the PLC respectively outputs leveling switch control signals according to the codes of each code segment.
Specifically, as shown in fig. 7, the hoistway parameter is a parameter of each component in the elevator hoistway, such as a floor height of each floor, a landing data of each floor, and a car-related parameter, where the landing data is specifically a length of a code segment, and the car-related parameter is specifically a switching pitch of a landing. The encoder parameters are specifically encoder pulse signals obtained according to motor parameters (such as motor rotating speed), elevator parameters (such as rated elevator speed) and the like. These data are input to the programmable logic controller PLC which creates a numerical model of the hoistway model (i.e., simulates the absolute position of each floor landing leg) from the raw data of the hoistway parameters.
When the car moves to the flat layer region, the light path of the flat layer switch is blocked by the flat layer inserting plate, the light path is disconnected, the generated electric signal changes to judge whether the current code segment is a groove or a protrusion, and the current code segment is specifically output through the state of the relay: if the groove is formed, the normally open contact of the relay is disconnected; if the protrusion exists, the normally open contact of the relay is closed. When the relay is closed, judging whether the leveling switch is in the code segment, if so, calculating the output control signal of the leveling switch by the Programmable Logic Controller (PLC); if the leveling switch is not in the code segment, the leveling switch does not output a control signal, specifically as follows:
the encoder 100 is installed on a main shaft of a traction machine for driving an elevator car to move and used for acquiring signals such as the rotation direction, speed, displacement and the like of the traction machine, then the encoder converts the acquired signals into pulse signals and outputs the pulse signals to the programmable logic controller PLC, and the programmable logic controller PLC judges the current position of the car by receiving the pulse signals fed back by the encoder 100. And calculating the current position of the lower leveling switch and the current position of the upper leveling switch according to the current position of the lift car and the spacing between the leveling switches in the shaft parameters.
When the current positions of the two switches are in the absolute position of a certain layer of plugboard, the programmable logic controller PLC internally calculates the output logic of the level switch. The programmable logic controller PLC outputs a lower leveling switch and an upper leveling switch control signal to the elevator main control board 300, and the elevator main control board acquires a leveling switch signal given by the programmable logic controller PLC to judge which floor the car is on (only the leveling plugboard is a code board, and the common plugboard does not have uniqueness) and whether the car is in a leveling position (namely, a door opening position).
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.

Claims (9)

1. A control method using a flat layer plug board is characterized by comprising the following steps:
dividing a flat layer plugboard of each layer in a well into a plurality of code segments, and coding the code segments according to the structures of the code segments;
acquiring the position of a leveling switch positioned on the car according to the position of the car;
acquiring the absolute position of each code segment in a well according to the reference position of the floor where the car is located at present and the length of the code segment, wherein the reference position of the floor in the well is consistent with the central position of the flat bed inserting plate;
and when the positions of the leveling switches are respectively located in the absolute positions of the code segments and the codes of the code segments are the designated codes, respectively outputting leveling switch control signals.
2. The control method using the flat bed inserting plate according to claim 1, wherein the dividing of the flat bed inserting plate of each floor in the shaft into a plurality of code segments specifically comprises:
dividing the flat layer plugboard into an upper half plugboard and a lower half plugboard at the central position of the flat layer plugboard, and dividing the upper half plugboard and the lower half plugboard into a plurality of code sections respectively, wherein the code sections are symmetrically distributed at the central position of the flat layer plugboard.
3. The control method using the flat layer insert plate according to claim 2, wherein the structure of the code segment comprises a groove structure or a protrusion structure; the encoding the code segment according to the structure of the code segment specifically includes: and carrying out different coding on the code segments according to different structures of the code segments.
4. The control method according to claim 1, wherein the leveling switch includes an upper leveling switch and a lower leveling switch, the position of the car coincides with an intermediate position of the upper leveling switch and the lower leveling switch, and the obtaining of the position of the leveling switch on the car according to the position of the car specifically includes:
and respectively obtaining the positions of the upper leveling switch and the lower leveling switch according to the position of the car and the distance between the upper leveling switch and the lower leveling switch.
5. The control method of claim 1, wherein the obtaining of the absolute position of each code segment in the hoistway according to the reference position of the floor where the car is currently located and the length of the code segment comprises:
the code segments comprise at least a first code segment and a second code segment, the length of the first code segment is the length of the first code segment, and the length of the second code segment is the length of the second code segment;
acquiring the absolute position of the first code segment in a well according to the reference position of the floor where the car is located at present and the length of the first code segment; and acquiring the absolute position of the second code segment in the well according to the absolute position of the first code segment in the well and the length of the second code segment.
6. A control system utilizing a flat bed interposer, comprising: the elevator comprises a leveling flashboard positioned on each floor, a leveling switch positioned on a car, an encoder and a Programmable Logic Controller (PLC), wherein the encoder is connected to the PLC;
the flat layer plugboard is divided into a plurality of code segments, and the code segments have different codes according to different structures;
the encoder is used for acquiring elevator operation parameters and outputting signals to the PLC according to the elevator operation parameters;
the PLC is used for receiving the output signal of the encoder, acquiring the position of the car, calculating the position of the leveling switch according to the position of the car, and calculating the absolute position of each code segment in the shaft according to the reference position of the floor where the car is located at present and the length of the code segment;
the PLC judges whether the leveling switch is positioned in the code segment according to the position of the leveling switch and the absolute position of each code segment in the shaft; and when the leveling switches are respectively positioned in the code segments, the PLC respectively outputs leveling switch control signals according to the code segment codes.
7. The control system of claim 6, wherein the code segment comprises a groove structure and a protrusion structure, and the groove structure and the protrusion structure correspond to different codes respectively.
8. The control system according to claim 6 or 7, wherein the flat layer socket is divided into an upper half socket and a lower half socket at a central position, the upper half socket and the lower half socket are respectively provided with a plurality of code segments, and the code segments are symmetrically distributed at the central position of the flat layer socket.
9. The control system of claim 6, wherein the leveling switch comprises an upper leveling switch and a lower leveling switch, and the PLC calculates the positions of the upper leveling switch and the lower leveling switch according to the position of the car and the distance between the upper leveling switch and the lower leveling switch, wherein the position of the car is consistent with the middle positions of the upper leveling switch and the lower leveling switch.
CN201911022010.4A 2019-10-25 2019-10-25 Control method and control system using flat layer plugboard Pending CN110759194A (en)

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