SI7811777A8 - Device for transmitting control signals for elevators-lifts - Google Patents

Description

1. Field of technology

The invention relates to a device for transmitting command signals for lifts. Floor calls and cabin calls as well as cabin position are transmitted encoded, and memory is provided that can remember coded deft and cabin calls and cabin positions. The comparator compares calls from upstairs and from the booth to the booth position.

2. Technical problem

The technical problem posed by the invention consists in the towers to reduce the number of portable VCs from the cabin.

3. State of the art

In order to save on transmission lines, it is common knowledge that with relay remote? control utility * ¹ diode array group feeding circuits. Thus, for example, it is possible for a diode array having ten inputs and five outputs to transmit - through five transmission lines connected to the outputs - ten simultaneously received input commands.

U.S. Patent No. 3,882 44 discloses a device whereby power, or excitation, of floor lamps and lamps for indicating the position of a cabin in an elevator installation is provided via a diode array. In the rows, the rows of the die are assigned to the lamps for upward and downward or downward movement. cabin position lamps, while the arches in the die are assigned individually to the floors. The case lamps are connected in a row with diodes that move the cross points of the matrix. Every row and every column is planted! transistor switching circuit which can be actuated by means of a control command signal, so it is possible to switch lamps over that circuit.

Although the use of a diode array enables the efficiency of cables and circuit breakers to be effected by this device, still the remaining costs, especially with respect to the relatively complex transistor circuit breakers, are still considerable and not viable in terms of lift control prices.

Another known control device according to French Patent 1 562 779 encrypts transmitted floor calls to and from the cab as well as cab positions. There are two diode arrays for the target, one of which is used for stu ding booth information, while the other is used to create floor information and booth position. The encoding is purely binary, all the information in the form of encoded words is transmitted by common guides and stored in memory. Logic circuit breakers prevent information being transmitted at one time. It so happens that the formation, transmission and storage of cabin position information is done only for the duration of the cab ride, while the reception of floor and cabin calls is blocked. Making, transmitting and storing floor and cabin calls is only possible while the cab is stationary while the cab positioning is blocked. The information stored in the cabin or floor and call memory is compared in one comparator with the information stored in the cabin position memory, and the result is given to the drive control.

Such a control device achieves some savings in transmission lines, which is not profitable for economical lift installations. Further, the disadvantage stems in particular from the use of a single diode array for floor calls and for cabin position. This requires the front of additional lines and a significant outlay for logical switching kela for reciprocal interlocking. In addition, one switch per floor is required to give the cabin position on the side of the manhole, making the installation more expensive. A further disadvantage is that after the power cut (power failure), the position of the cab is no longer known, so corrective driving must be performed until the next turn.

41409

On the other hand, Austrian patent 249923 is known for the elevator control device, where the position of the cab is transmitted encoded without the use of a diode array. At the turnstiles there is a smoker on the cabin. a four-digit optical or magnetic reading device that cooperates with apertures located in the shaft. The apertures, which ** are placed at the height of each floor, are in terms of number i. sequences arranged according to the binary code used in the coding. In order to avoid differences in the switching point, a shorter aperture was installed on each floor, which frees up the value of the other shutters. The large number of apertures that result from this is a drawback of this device, which cannot be ignored. A further disadvantage is that after the power failure, the position of the cab is no longer known, so a correction run must be made until the next floor.

4. Description of the solution to the technical problem

It is an object of the present invention to provide an elevator control signal transmission device, which has no drawbacks to the aforementioned devices, but rather integrates their advantages and applies them together, in particular the number of transmission lines being minimized.

According to the invention, this task is solved by providing one matrix for catholic or floor calls, the outputs of which are connected via common call sockets to the inputs of the call memories, and a code device consisting of a switch is provided for encoding the cabin position. attached to the elevator cabin, and from the actuating elements housed in the elevator shaft, where * based on the position code of the cabin * »the Gray code is congenital, and at the crossing of two floors one actuating element is assigned, which is assigned to an alternating binary location in the encodings in the words assigned to the floors. The topics are connected to the outputs of the diode matrix of the cab via - with them on r ** c connected - diodes, and connected to the inputs of the position mem- ber via the calling lines. for a period of time after the stop, the diodes of the katina and dexterity matrix are impermeable, and the coupling diodes are switched on and the calling lines are disconnected by cd of the memory, and for the remainder of the standstill time, the matrix diodes are switched on while the diodes for the connection is tightly plugged in, and so are the calling leads that are inclusive of the calling memory.

According to one preferred embodiment, the logic switching circuit consists of four NOR members with two inputs, by means of which the calling lines can be separated from the memory memories, the first inputs of which are connected to the outputs of the cabin and the floor matrix via the calling lines, and the outputs are connected to the first inputs of the calling memories, further, cd equal to * »the first regular connections of one first NOP-, one NICHT-, and one other NOR member, as well as of three transistor switches, where the output of the NICHT-member is connected to II (other) inputs of four NOR members that separate the calling lines ** from the memory, and the NICHT member input is connected to the input of the first transistor switch, the output of which is connected to the input of the second transistor switch, and connected to the first feeder and cabin encoder by cab diode array inputs; the output of the second transistor switch via the resistor and the calling lines is connected to the output ** of the floor and floor matrices ** and the output of the second NOR member of the first serial (row) connection to the input of the third transistor switch is connected, and its output is via one the second charge lines and the floor encoder are summarily connected to the inputs of the floor ** diodn * ¹ matrix, and the legic circuit breaker shows each other with a ** ry (regular) connection consisting of c d. one NICHT-, one NOR-, and one ODER member, whose output is connected through the extinguishing lines to the other (II) input call uemories and whose input is connected to one input of the first serial (row) connection and to one first input. logic circuit, where one further input of the NOR member of the second row connection is connected to one further input of the first row connection and one other input of the logic circuit and one third input of the logic circuit is connected to the core input of the ODER member.

In the event of a power failure, the position of the cab is remembered and, in order to avoid corrective movement after a further reconnection, according to one further embodiment of the invention, the switches mounted on the elevator cab are bistable magnetic switches and the actuating elements in the elevator shaft are switch magnets.

A further advantageous feature of the invention is that it is an n floor pointer, the code words formed by bistable magnetic switches can be contracted over the lines used for call transfer and for cab position.

The accompanying drawings provide an example of an embodiment of the invention, which will be further explained in the following. for topics:

FIG. 3 schematically represents an elevator installation with a device for transmitting command signals according to the invention;

£ 1. 2 shows an eid matrix that ·.

encodes cabin calls;

FIG. 3 shows a table of code words assigned individually to floors;

FIG. 4 shows a circuit diagram of a logic switch circuit.

In Figure 3, the elevator is marked with a lift from the battle and is partially shown on its own, in which hp is led by a cabin of 2 lifts. The elevator machine, which is operated by the control unit 3, drives the elevator cabin 2 via the lifting rope 5, whereby the elevator serves fifteen floors before the ⁵ m example. to S 15. S a Tl to Tl 5 3 5 the respective floor · are marked. the door. An encoder diode matrix 6 is attached to the elevator cabin 2, which encodes the cabin calls using a binary code.

The die matrix 6, which will be further explained in the following description of Figure 2, has fifteen inputs and four outputs, the inputs being connected to the cabin encoders of calls D C 3 to D C 3 5 belonging to the corresponding ones. floors S 1 to S 3 5. The cab call encoders D C 3 to DC 3 5 are connected in series and connected to the power supply SFDC.

There are four bistable magnetic switches installed on lift 2

7.0,7.3,7.2,7.3 known structures, which, when driven, run along symbolically dashed lines 8.0,8.3,8.2,8.3, and which - by means of switch magnets 9 1 lying on imaginary paths 8, may be included. Eistable magnetic switches 7.0,7.3,7.2,7.3, and switch magnets 9 make up the encoder for positioning the cab, with the base being taken. Gray's code. The switch magnets 9 are arranged in accordance with the cleverly assigned code words (Fig. 3, column III) inside the lift shaft 3. For each code change, one switch magnet 9 is used, so that fourteen floors require fourteen switch magnets 9 .4 Bistable Magnetic Switches 7.0, ^. 3,7.2, ^. 3 are connected on one side to the SPDC supply line and on the other side via a single>

element 10 (which will be described in more detail in the description of Figure 2) with four outputs of the diode array 6 of the cab. These four outputs are connected by four calling lines L 0, L 1,1 2, L, which together with the SPDC feed line are enclosed in a hanging cable 3 3 through which j cabin pegs are transferred as well as cabin positions to stationary parts of lift installations. A 3 2 denotes a fixed mounting diode array encoding floor calls using a binary code, which has the same construction as cabin diode array 6. The heart of the diode array 12 also has fifteen inputs and four

41 · 4ϋ5>

outputs, whereby the inputs are connected to the upstairs of the call encoders DE 1 to DE 3 5 of the corresponding floors S 1 to S 15. The deft encoders of calls DE 3 to DE 15 are connected in a row and connected to the SPDE supply line. The four outputs of the upstream diode array 3 2 are connected by means of call vs L 0 to L 3 on one side via cable visor 11 on the four outputs of the cathode diode array ** 6, and on the other side via one logic circuit 3 ^q (which to be described in more detail with reference to Fig. 4) with the first inputs of four memory memories 14,15,16, l ⁷ ). The second (II) inputs four memory memories 34 to 1? - which are constructed in a known manner from one ODER - and one UND member - are connected via the SPGC extinguishing lines with a logic circuit] 3 while the outputs are supplied by the inputs A 0, A 1, A 2, A 3 of the comparator 16.

Code Converter 3 9 which converts the Gray code into a binary, consists of three exclusive-0 DEF members and has four inputs and four outputs, with the inputs connected to the outputs of the floor diode matrix 12. The outputs of the code converter 19 are connected to the position memory 20, which uses a single, well-known, 4-bit (lateh) memory whose outputs are connected to the inputs E 0, EI, B 2, E 'of the comparator 16. Comparator 16 throws a porch to the known circuits and will not be closer described. Cn compares the stored call key word quay stored in the call memories 14 to 17 with the cab position code word stored in the position memory 20, and produces a command signal quay cd predetermines the direction of travel and stop of cab lift.e 2 driven by control unit 3 .

23 is a floor pointer, which is known, and which shows the position of the cabin as measured in memory 20.

No- you are. 2, D C 1 to D C 15, LO to L3, SPDC, 6 and 10 denote the same parts as in FIG. 3. The diodes 22 included between the inputs and outputs of the diode array 6 are arranged according to the code words of FIG. ', Elbows II, where one diode is provided for sv if zero-point 22. Thus, for example, four diodes 22 are set for floor S 35 in accordance with code word 0000.

transverse element 3 0 has four diodes 23, through which four bistable magnetic switches 7.0,7.1,7.2,7.3 are connected to four outputs of the diode array which prevent the power lines LO through L 3 from being supplied through magnetic switches during Standing cabin 2. 7.0 čc 7.3.

In FIG. 4 are denoted by 34,25,26,27 four NOR members with -p two inputs. They can be used to separate the calling lines IC, L1, L2, I3 to separate them from the calling non-energies 34,35,16,17. NOR members 24 dc 2 pc · placed first; inputs connected to the Katina outputs: floor mats 6,12 via calling lines I. O, to L 3, a. ds are their way out; connected to the call memory inputs 14 to 3 ^-1 (Fig. 1). One first NOR member 28, one NICHT member 29 ij ^ day comrade; NOR - Article 30 make one first regular round, with the first and second NOR Article 28 respectively. 30 have two entrances each. The output of NICHT member 29 is connected to other NOR inputs of members 24 to 2 ^-1, which are also designed to separate the calling lines LO to L and to the tactical connector T of the position memory 20 (Fig. 1), while its input is connected ns the input of a first transistor switch 31, the output of which is connected to the input of another transistor switch 32 a through a direct link SFDC and a cable converter calls D C3 to d C 3 5 connected to the inputs of the cathode diode array (Fig. 3). The output of the second transistor switch 32 is connected via a resistor 33,34,35,36 and a calling line I. C, dc L to the outputs of the cabin and floor diode arrays 6.3 2. The output of the second NOF member 30 of the first circuit is connected to? the input of one third of transistor switch 37, the output of which via another SP.switches SPDE and spratrfC 'encoder calls DE 1 to DE 3 5 connected to the inputs of the diode matrix * ¹ · 3 2 (Fig. 3). The output of each other row circuit - made up of one NICHT member 'δ, one single two-input NOR-member 39 and one also two-input ODER member 40 is connected via the extinguishing line

41409SPGC to other inputs of call me 14 dc 17 (Fig. 1). The input of the second row circuit is connected to one input of the first row circuit and one first input of the G'RA logic switching circuit, wherein the second input of the NOR member 39 of the second row circuit with the second input of the first row circuit and with one other input of the LFDC logic circuit 13 stands in the relationship. One third input of KB logic circuit 13 is connected to the second input o C EP member 40 of the second circuit.

The transistor switches 33,32,37, which are constructed according to known principles, are represented symbolically, with the first and second transistor switches 33 and 32 respectively having as their essential elements two transistors 43,42 and 43,44 respectively, while for the third transistor g switches 37 one transistor is provided 45. With the help of transistor switch 31,32,37, the power lines SPDC, SPDE and the calling lines L 0 to L 3 can be connected alternately to the lines PO 3, MO 1, whereby the line PO 3 is connected to the positive, and line MO 1 to the negative pole of one r.apon source not shown further.

In terms of simplifying the concepts of functional unfolding, a minimal number was chosen - to understand the functions - of the necessary information among those derived from the control unit 3 and brought to the logic circuit 3? as input signals, and are indicated as follows:

GR - A = 0 Cabin 2 lifts standing, no call memorized ZFDC = 3 zero to two seconds after cabin stop 2 KB = 0 brake lowered

RTS = 3 doors open

As is usual with logic circuits, the numbers 3 and 0 denote the localized input n and the output states of the corresponding circuit elements, respectively. In the irregular description of the functions, therefore, signal 1 and signal 0 will also be used, whereby the state of tension or strains is irritated.

The device described above works as follows:

When cabin 2 is stopped e.g. on floor S 3, and at closed door of manhole T 3 to T 35, suppose that no call was saved. The input signals of the logic circuit 3 3 will then be, as defined above:

GR-A = 0, ZF DC = 0 ('~ · two seconds after cab stop 2), KB = 0 and RTs - O. With both input information GRT ^ A = 0 and 2FDC = 0 will be the output information SPDC of the first NOR- of Article 28 of the first row connection 1. transistor 42 of the first transistor switch 33 starts to conduct, so that the SPDC supply line connects to the MO 1 line and carries the signal 0. Since it simultaneously conducts transistor 43, this is the output of the second transistor switch 32 connected to with water PO 1 and carries signal 3, which causes the output of the cabin and deft diode arrays 6,12 connected to the calling lines I. 0 to L 3, as well as the first inputs of four NOR members 24 to 2? they also carry signal 1. This corresponds in binary inverted form to the word 1111 defined as no call (Fig. 3, column II). Because the output information of SPDC 1 NICHT element 29 of the first row 0, this outputs four NOR members 24 to 27 carry signal 0, so that a code word defined as no call occurs at the first inputs of call memes 14 to 17 and which used for call processing, has the form 0000 (fig.?, column IV).

With information GP-A-0 at the NICHT input elan 38, ZFDC = O at the second input of the first NCR member '9 and KE = O at the second ODER input of the member 40 of the second row kel, the output of this last signal is 0, so that via shutdown SPGC there is information SPGC = 0 on the other inputs of the calling memory 34 to 37. Based on the input information SPDC 1 = 0 and RTS = 0 of the second NO P member 30 of the first row, its output information SPDE = 1. In order becomes transistor 45 of the third transistor switch 3? conductive such that the j ** supply line SPDE is connected to the MO 3 line and carries the signal 0. 3

Fri giving a call from the cabin at

41409 example for signal S 3 4, directly connects the supply line SP D C, which carries signal 0, and the corresponding input of the cabin diode matrix 6, so that, according to the number and arrangement of the diodes 22, the calling lines L], L 2,1. 3 also carries signal 0, while the call line L o carries signal 1 as before as before (Fig. 2). This corresponds to code line 0001 defined as floor S 14 in binary inverted form (Fig. 7 column II). Four N OP members 24 to 2 ”clamp r.cse signals 1,1,1,0, so the code ret is defined as floor S 14 1110 that occurs at the first inputs of the call memory 14 to 17 for call processing (Fig. 7 , column JV). In the meantime, the SPGC information that is present at other call memory inputs has changed from 0 to 1, the forwarded call is memorized and stored at the A 0 to A 7 comparator inputs 18.

Only one cab call can be received each time, as the DC 1 to DC 15 cab encoders are queued. When making multiple cabin calls at a time, only the one given through the cabin encoder D C 1 dc D C 15 closest to the SFDC power supply is received.

, when cabin 2, input signals F-A = 1; ZFDC = 0 After davar.ja invites the ovens to move leg 1? are G

KB = 1 and FTS = O. The output information of SPDC NOF.- Article 28 changes from 1 to 0. In order, the transistor 42 of the first transistor g switch 71 is blocked, so that the SPDC supply line via transistor 41 is connected to the PO 1 line and carries a signal. 1. Post PROVODA transistor 44, the other container tranzistorskog connected with water MO 1 and O. Time in view of the diode 22 dicdr.ih matrix more jedne weather no j ^p Output circuit 72 carries the signal polarization 6,12 ri is mocuče unoser. If nikakvog further cabin call or because of also the L 0 to b calling lines? connected outputs of the floor matrix 12 any further floor calls. Due to a change in the output information of SPDC 1 NICHT Article 29 ra 1, four NOK-articles 24 c'c 2 "of the pore C are exited, without this affecting the callers 14 to 17 because in the meantime, due to G" pA = l respectively KB = 1, SPGC changed to 1.

While driving, cabs 2 are magnetically interrupted 7.0 to 7.7 activated by the switch magnets 9 housed in the elevator shaft 1. For friction signal 1, the supply line SPDC is switched on by magnetic switches 7.0 to 7. ^-5 closed according to (in accordance with) Gray. code (Fig.?, Column III), and the dexter element 10 is connected to the calling lines L 0 to L 7. The combination of signals 1 and '0 representing the code word characteristic of the current position of the cab reaches the calling lines LO to L 7 to code converter 19 where it is converted to binary code (fig.?, Col. IV). Call memories 14 ac · 17 r, e can be interfered with by the cab position signals as they are separated by four N OP members 24 dc 27 carrying input information SPDC 1 = 1 from the calling lines L 0 to L ?. The T-switch T positioner.e measure of the sea 20 connected to the outputs of the converter code 19 also carries the information that goes by while driving SFDC 1 = 1 (Fig. 3), so that with the »inputs EC dc E 7 of the comparator 18 the signals of the cabin position are output.

Comparator 18 now works so that the code word quay located at inputs A 0 to A 'is compared to that of the recess driving.

The floor indicator 21 may be connected directly to the calling lines L 0 to L instead of position memory 20.

7. It is also possible for one 21-storey indicator to be installed in cabin 2, where it is also connected directly to the calling trays L 0 to L ?. In both cases, the floor pointer 21 has its own position memory.

As can be seen from the introductory paragraphs of the description of the application, the present invention is a device for transmitting command signals for liites. With this device, the number of transmission lines is reduced, such

As for the transmission of cabin and floor calls, as well as cabin positions, for the purpose of controlling and indicating the floors, the same lines are used, using, according to the log (K + l) * L equation, for the bronze floors (selected in example) N * = 15 only L = 4 transmission line plus one supply line should be used, both for cab calls and cab position. With the Gray code to encode the cabin position, only one switch magnet is required to move from floor to floor, and no differences in the moroent of the shunt occur. Therefore, after an emergency stop, the exact position of the cabin is known. Since bistable magnetic switches are applied, the cab position remains preserved even if the voltage disappears and no corrective driving is required.

The floor indicator 2] can be connected directly to the calling lines L 0 to L instead of position memory 20. It is also possible for one floor 21 indicator to be installed in cabin 2, which is also connected directly to the calling lines L 0 to L 3. In both cases, the floor floor indicator 21 has its own calling m e must m.

The only one known to the applicant is the possibility of applying the invention. is the management of lifts. For use in manufacturing, the invention is not unimportant.

An elevator command transmitter can be built from commercially available elements.

Claims (4)

PATENT REQUIREMENTS CLAIMS 1. A crane signal transmitter comprising a memory of coupled cabin and cabin positions associated with a comparator, characterized in that one diode is provided per die (6,12) for encrypting the cabin and cabin calls , whose outputs are via a common line of call lines (Lo, Ll, L2, L3) connected to the memory memories inputs (14,15,16,17), and that there is a encoder for encoding the position of the cabin, consisting of switches (7.0,7.1,7.2,7.3) attached to the elevator cabin (2) and of of actuating elements (9) mounted in the elevator window (1), whereby a Gray code is used to encode the position of the cabin, and each actuating floor is provided with one actuating element (9), and wherein the switches (7.0,7.1,7,2 , 7.3) are connected to the outputs of the cabinet diode matrix (6) one at a time by the connected diodes (23) of the coupling element (10) and are connected to the memory inputs of the position (Lo, Ll, L2, L3) via the call branches (Lo, Ll, L2, L3). 20), and it is envisages logičko wheel (13) is Koje with entrances of the page associated with a ring-line (LO, L1, L2, L3) with a page outs associated with memerijama calls (14), 15,16,1- ¹⁾ . A device according to claim 1, characterized in that the logic switching circuit (1?) Is made with four two-ultrasonic NILI circuits (24,25,26,27), the first inputs of which are via the calling lines (Lo, Ll. L2, L 3) connected to the outputs of the cabin and floor mats (6,12) and whose outputs are connected to the first inputs of the memory memories (14,15,16,17) with a regularly connected first NILI circuit (28), NI circuit (29) and other NILI circuit (30), and containing three transistor switches (31,32,37); the output of the NI circuit (29) is connected to other inputs by four NILI circuits (24,25,26,27), and the input of the NI circuit (29) is connected to the input of the first transistor switch (31) whose output is connected to the input of the second transistor switch (32) or via the first supply line (SPDC) and via the cabin call transmitter (DC 1 to DC 15) is connected to the inputs of the cabin diode matrix * ⁵ (6), with the subject being the output of the second transistor switch (32) via a resistor (3 ^, 34,35,36) and a calling line (Lo, Ll, L2, L3) connected to the exits of the cabin and floor mats (6,12); In the case of the output, the output of the second NILI member (30) is connected to the input of a third transistor switch (37) whose output is via a second supply line (SPDE) and 414 (59 storey call transmitter (DE 1 to DE 3 5) connected to the inputs of the storey diode array (3 2), and thus the logical switching circuit (3?) Contains a regularly connected NI-ring (? 6), NILI circuit (? 9) and OR (40) whose output via the fire extinguisher line (SPGC) is connected to other input memory inputs (3 4,3 5,36,3 ”) and whose input is connected to one input of the first line circuit and with one first input (GF.-A) of the logic switching circuit (3 3) wherein one further input of the NILI member (? 9) of the second row circuit is connected to one further input of the first row circuit. and to one other input (ZFDC ) of the logic circuit breaker (3?) and one third input (KB) of the logic circuit (1?) is connected to one input OR - Article (40). ?. Apparatus according to claim 1, characterized in that the switches (".7.3, 7.2.7.?) Are bi-stable magnetic switches attached to the cabin (2) and the actuating elements (9) are switch magnets (9) and mounted are in the lift shaft-shaft (1). Device according to claim 1, characterized in that a floor pointer (23) is provided which is connected to the position memory (20). Continued on the first page with a memory call. prefcacs vCGCva Logically for the time associated with the pile driving The salt matrix circuit does not separate the diodes υ for the transverse state, and the diodes for the leaky state, and for the memory call. In the stopped state, the diode diodes are permeable, the coupling diodes are blocked * ¹ and the call signal is open. are attached to the memory.