JPS5856707B2 - elevator signaling device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an elevator signaling device.

In general, an elevator signaling device determines the service direction and service floor of the elevator by inputting a hall call input by a landing push button, a car call input by an in-car push button, and a car position signal.

Incidentally, an elevator signal device generally has a characteristic that the number of input points increases in proportion to the number of floors of a building.

Therefore, in order to avoid the increase in the complexity of elevator service direction determination circuits due to the increase in the number of input points, conventional elevator signaling devices generally provide the same logic circuits in parallel for each floor, forming a so-called recursive logic. are doing.

However, while conventional elevator signaling devices that use recursive logic using parallel circuits have the advantage of being able to cope with an increase in the number of floors by increasing the number of the same circuits,
It still has the disadvantage of a proportional increase in the number of parts as the number of floors increases.

This poses important problems in terms of reliability and cost, especially in elevators installed in high-rise buildings.

Furthermore, a drawback of conventional elevator signaling devices is that when multiple elevators are operated in a fully automatic group sharing system, the number of signal lines input to each elevator's signaling device is approximately equal to the number of elevators multiplied by the floor. The number of parts increases in proportion to the floor covering, and the number of parts increases accordingly.

In view of the above-mentioned problems, the present invention provides a landing call storage circuit for storing landing calls, a car call storage circuit for storing car calls, a car call storage circuit for storing car calls, and a car call storage circuit for storing car calls in a forward direction from the bottom floor of a building to the top floor. a scanning signal generation circuit for generating a scanning signal for repeating sequential scanning in the opposite direction toward the lowest floor; The elevator service direction is determined by sequentially scanning the hall calls and car calls stored in the car call storage circuit and the car call storage circuit. Moreover, in the signaling device of each elevator used for the fully automatic operation of a plurality of elevators installed together, a simple circuit is not added, that is, a descending service command is not generated.
and the scanning signal that makes the scanning interval correspond to a pair of a scanning direction and a scanning floor, or a pair of a scanning direction, a scanning floor, and a scanning elevator is the same as the contents of a floor position register that stores the floor position of the elevator and is sequential. When specifying the scan interval in the direction,
Alternatively, when an ascending service command is not generated and the scanning signal is low to the content of the floor position register and instructs a scan interval in the opposite direction, an assignment area set signal and an assignment area reset signal are sent to the assignment area reset bus. By adding an assignment area control circuit that generates the assignment area control circuit and an assignment area flag that gives priority to the set signal, which is set by the assignment area reset signal and reset by the assignment area reset signal, the elevator service direction determination circuit can be To provide a highly reliable and low-cost elevator signaling device, which enables a configuration that is almost independent of the number of elevators and the number of elevators installed, thereby drastically reducing the number of parts and signal lines.

An embodiment of the present invention will be described below in comparison with a conventional elevator signaling device.

In the explanation, for simplicity, the number of floors of the building is assumed to be four.

Further, in the following description, n shall represent any number from 1 to 4 corresponding to the floor.

FIG. 1 is a schematic diagram of an elevator to which the present invention is applied.

The signal device 1 is a call signal group 4 (IC-4C) generated by an in-car push button 3 provided in an elevator car 2.
), a floor area passage detector 5 provided in the elevator car 2
is generated by facing the detected device 6 provided in the tower.

Floor area passing signal 9, platform push button 1 installed at each platform
Hall call signal group 11 (IFU~3
FU, 2FD to 4FD) and a group of operation signals (#1, #2) generated by the control device 12, the service direction and service floor of the elevator are determined, and the ascending service command (UP) is input to the control device 12. ), lowering service command (
Command signal group 1 consisting of (DN) and deceleration command (GEN)
Outputs 3.

The control device 12 sends an upward operation signal (#1) and a downward operation signal (#2) according to an upward service command (UP) and a downward service command (DN), respectively, while the elevator car is stopped.
), and starts acceleration control for the hoisting motor 14.

The ascending operation signal (#1) and descending operation signal (#2) are held while the elevator corner is operating.

The control device 12 also starts deceleration control for the hoisting motor 14 at the rise of the deceleration command.

Sheave 15 is coupled to hoisting motor 14 .

The hoisting rope 16 is wound around the sheave 15, and suspends the weight 17 by counterbalancing the elevator shaft 2.

In the figure, it is assumed that the floor passage signal 9 is obtained from inside the tower, but a floor position signal (Is to 4S) obtained from a so-called floor controller may be directly input.

FIG. 2 shows a conventional signaling device.

In the figure, 21 is a floor call memory circuit, 22 is a floor circuit,
23 is a common circuit, and 24 is a floor position signal generating circuit.

The floor call memory circuit 21 stores landing call signals (nFU, n
FD) or the car call signal (nC), and the landing call reset signal (RnFU, RnF
D) Or, each floor consists of three memory elements each reset by a car call reset signal (RnC), and the memory contents are MnFU, MnFD, M
Output as nC.

The floor position signal generation circuit 24 generates a floor position signal (Is~4
S) is output.

In the figure, a shift register is used as the floor position signal generation circuit, which shifts to the left during ascending service and shifts to the right during descending service in response to the floor passing signal 9. Floor position signal (I
s~4S) are used directly.

The floor circuit 22 includes logic circuits expressed by the following logical formulas (1) to (5).

Here, + stands for logical sum, ・ stands for logical product, - stands for negation,
1.0 represents true and false, respectively.

However, operations on arguments of logical functions are simply arithmetic operations.

As is clear from equations (1) to (5), U(4) is a signal indicating the presence or absence of a call above the elevator corner, and D(1) is a signal indicating the presence or absence of a call below the elevator corner.

Further, the hall call set signal and the car call reset signal are generated, for example, by a logic circuit expressed by the following logical formula.

The common circuit 23 determines the service direction based on U(4) and D(1), and outputs an up service command (UP) and a down service command (DN) to the control device 12.

The common circuit 23 also sends a deceleration command (GEN) to the control device 12 upon coincidence of the landing call, car call, and floor position signal.
Output to.

Here, the ascending service command (UP) and descending service command (DN) are held until no calls to be serviced are detected in the indicated direction.

Further, the deceleration command (GEN) is held even when the elevator is stopped.

As is clear from Fig. 2 and equations (1) to (5), conventional signaling devices configure recursive logic by installing the same circuit in parallel for the number of floors. It is clear that the disadvantage is that the number of parts increases in proportion to the increase in the number of parts.

However, FIG. 2 and equations (1) to (5) also suggest a clue to solving the problem of the number of parts being proportional to the number of floors.

This is a method in which landing calls and car calls are sequentially scanned using scanning signals whose scanning intervals correspond to the floors, thereby sharing one floor circuit 22 over all floors. It is clear that it becomes possible to make it almost unrelated to .

Next, consider applying the conventional signaling device to the fully automatic operation of a plurality of elevators.

In order to be applied to the fully automated group sharing system, each elevator's signaling device must have a function to determine which hall calls should be shared.

Therefore, in order to apply the conventional signaling device to a fully automatic group sharing system for a plurality of elevators, the floor circuit 22 must include a logic circuit expressed by the following logical formula.

In the following, the number of elevators installed is m, and i
takes any number from 1 to m.

Here, the meaning of each logical variable and function is nSi": Floor position signal of the nth floor of the i-th car DNi: Lowering service command of the i-th car UPi: Rise of tt 〃 〃YUi(n
), YDi(n): IUi(n) where there is another machine in service on the 1st floor: UP call on the 1st floor is shared by another machine.
DI(n): 〃DN ttUi(4):
The call is above Di (1) 2 〃 Downward 〃 of the i-th car.

As is clear from the above, in order to apply the conventional signaling device to the fully automatic group sharing system for multiple elevators, it is necessary to There are (ml) each for the ascending service command signal and descending service command signal for the main, other units, and two inputs and two outputs for receiving and receiving signals between floor circuits.
3m+1) signal lines are required.

The above is the number of signal lines for the original drawing on the first floor, but it is easy to imagine how many signal lines will be needed along with the number of floors and the number of elevators.

Therefore, what is important in the present invention is to not only simplify the signaling system for elevators that operate independently, but also to simplify the signaling system for each elevator that is applied to the fully automated group operation system. The purpose is to provide a scanning method.

FIG. 3 is a block diagram of one embodiment of the present invention.

In the figure, 31 is a scanning signal generation circuit, 32 is a hall call storage circuit, 33 is a car call storage circuit, 34 is a service direction determination circuit, 35 is a service floor determination circuit, and 36 is a floor position register.

The scanning signal generation circuit 31 generates scanning signals US/DS and FCO for making the scanning interval correspond to the scanning direction and scanning floor pair.
1FC1, the first synchronization signal CLI and the second synchronization signal CL
Generates 2.

The hall call storage circuit 32 stores the hall call signal group 11 (I
The platform call reset signal group (RIFU-R3FU, R2FD) is set by FU-3FU, 2FD-4FD) and generated by the service floor determination circuit 35.
-R4FD) is equipped with (number of floors x 2-2) memory circuits, for example, RSS flip-flop circuits, which are a type of flip-flop circuit, and the landing calls (MIFU-R4FD) are stored in each memory circuit. M3F
U, M2FD-M4FD).

The car call memory circuit 33 stores a car call signal group (IC-4C
), and the service floor determination circuit 3
The car call reset signal group (RIC-
It is equipped with memory circuits similar to the hall call memory circuits for the number of floors, each reset by the car call memory circuit (MIC-M4C), which is reset by each memory circuit.
) is output.

The floor position register 36 is incremented at the rising edge of the floor area pass signal 9 when the upward service command UP is generated by the service direction determination circuit 34, and when the upward service command UP is not generated. Floor area passing signal 9
It is an up/down counter that counts down at the rise of the elevator, and indicates the floor to stop when the elevator is stopped, and indicates the nearest floor to which it can stop next when the elevator is in operation.2
A floor position encoded signal (FOlFl) expressed in base numbers is generated.

The floor position register is also a so-called encoder (encoder) for inputting a floor position signal (Is~4S) obtained from a so-called floor controller and outputting the floor position encoded signal (FO, Fl). It may be.

The service direction determination circuit 34 refers to the floor position encoded signal and determines that the scan interval indicated by the scan signal generated by the scan signal generation circuit 31 is a scan above the floor position of the elevator car. It is determined whether the mode is in the upward scanning mode or in the downward scanning mode, that is, scanning below the floor position with respect to the elevator, and the landing call corresponding to the scanning direction of the scanning signal and the scanning floor and the scanning signal of the scanning signal are determined. The car calls corresponding to the scanning floors are sequentially referred to, and when a descending service command (DN) is not generated, if a landing call or a car call is detected off the upper scanning mote, an ascending service command (UP) is generated. , if no landing call or car call is detected during the upward scanning mode, the up service command (UP) is canceled and the up service command (UP) is canceled.
If a landing call or a dow call is detected during the downward scanning mode when no call is occurring, a descending service command (DN) is issued.
is generated, and if no landing call or corner call is detected during the downward scanning mode, the descending service command (DN) is canceled.

The service floor determination circuit 35 determines when there is a landing call corresponding to the contents of the floor position register 36 and an ascending service command and a descending service command, or when there is a car call corresponding to the contents of the floor position register 36. Alternatively, when the up operation signal (#1) is generated and the up service command (UP) disappears, or when the up operation signal (#1) is
2) has been generated and the descending service command (DN) has disappeared, a deceleration command (GEN) is generated after a predetermined time delay from the floor position signal 9.

The service floor determination circuit 35 also controls the floor position register 36 while the deceleration command (GEN) is being generated.
, the platform call reset signal corresponding to the ascending service command and descending service command, and the floor position register 3.
A car call reset signal corresponding to the contents of 6 is generated.

The concept of the scanning method of the present invention is shown in FIGS. 4a and 4b.

Fig. 4a shows a case where elevator A is issuing an ascending service command on the second floor, and Fig. 4b shows a case where another elevator B is issuing a descending service command on the third floor as a typical example. There is.

In FIG. 4a, the scanning intervals are first matched to the landing call and car call pairs.

That is, the scanning interval TI (order, IFL), T2 (order, 2F
L), T3 (order, 3FL), T4 (order, 4FL),
T5 (reverse, 4FL), T6 (reverse, 3FL) T7 (reverse, 2FL)
(FL), T8 (reverse, IFL), respectively (MIFU, MIC), (M2FU, M2)
C), (M3FU, M3C), (M4FU=0, M4C
), (M4FD, M4C), (M3FD, M3C), (
M2FD, M2C) and (MIFD=O1MIC) are made to correspond.

This is called the first response.

The scan interval is then made to correspond to the pair of up and down service commands and floor position encoding signals.

That is, the scanning interval TI, T2, T3, T4, T5, T
6, T7, and T8 respectively (100X, Is'), (DN,
28'), (5th side, 38'), (DN, 48')
, (stone p, 48su, (UP, 38'), (UP
, 28') and (picture p, IS') are made to correspond.

This is called the second response. Here, for the sake of simplicity, I S'~
4S' is used, but these are the floor position encoded signals (FO1F) corresponding to the floor position signals IS~4S.
'l) is shown.

Finally, the scanning interval is made to correspond to the floor position encoded signal.

That is, scanning intervals T1, T2, T3, T4, T5, T6
, T7 and T8 respectively I S', 28', 4 S',
4 S/, 3 S', 2S', and IS' are made to correspond.

This is called the third response.

The scanning method of the present invention is simply T1→T2→T3→T4→T5→T6→T in order to take the above-mentioned first, second, and third correspondences.
The scanning sequence 7→T8→T1→T2→... is repeated.

The third correspondence is that during the scanning period of T1→T2→T3→T4,
That is, when this correspondence is obtained during the forward scanning period, it indicates that the landing call and car call obtained by the first correspondence with the subsequent scanning interval request uplift service; When a correspondence is obtained, the first correspondence with a subsequent scan interval indicates that the landing call and car call require down service.

The second correspondence is used to determine the division of hall calls obtained by the first correspondence with the scanning interval when a plurality of elevators are installed together as shown in FIG. 4b.

Here, as another example of the scanning method, a method can be considered in which the scanning interval corresponds only to the scanning floor.

In this method, the scanning intervals TI, T2, T3, T4 are (MI
C, MIFU, MIFD=0), CM2C1M2F
U, M2FD), (M3C, M3FU, M3FD), (
M4C, M4FU=0, M4FD).

However, although this method is fully applicable when one elevator is operated independently, when multiple elevators are installed together as shown in Figure 4b, the conventional It is clear that the service direction determination circuit, like the elevator signaling system, is complex.

Therefore, in the present invention, this scanning method was not adopted.

FIG. 5 is a diagram for explaining the scanning signal generating circuit 31 shown in FIG. 3 in more detail.

The clock generation circuit 41 generates a basic clock CL with a constant period.
A first synchronizing signal CL1 is generated with a fixed time delay from the basic clock CLO with the same period as the basic clock, and a second synchronizing signal CL2 is generated with a fixed time delay from the first synchronizing signal CL1.

The scanning direction switching circuit 42 refers to the scanning floor coded signal (FCOLPCI) output from the up/down counter 43 at the rising edge of the basic clock CLO, and determines whether the scanning floor coded signal indicates the top floor. and the scanning direction is forward (US/DS=1), or only when the scanning floor encoded signal indicates the lowest floor and the scanning direction is backward (US/DS=0). The scanning direction signal (US/D
S) is inverted, and this sample clock CL is used as the counter clock CL3 sent to the up/down counter 43 at this time.
It prevents O from riding.

The up/down counter 43 receives the scanning direction signal US/DS.
Accordingly, it counts up or down at the falling edge of the counter clock CL3, thereby outputting the scanning floor coded signal FCO1PCI.

The scanning signal consists of a scanning direction signal US/DS and a scanning floor coded signal (FOClPCI).

In the figure, the number of floors of the building is 4, so 2
Although a bit up/down counter 43 is used, it is easy to change the number of bits of the up/down counter 430, and therefore the number of scanning floor encoded signals, depending on the number of floors of the building.

FIG. 6 shows a timing chart of the signals shown in FIG. 5 in correspondence with scanning intervals T1 to T8.

FIG. 7 is one implementation of the scanning direction switching circuit 42 shown in FIG.

A three-man powered NOR circuit 44 and a three-man powered AND circuit 45 output a scanning direction signal (US/DS) and a scanning floor coded signal (FC
The flip-flop circuit 4 inputs a signal energized in the scanning interval when the bottom floor is scanned in the reverse direction, and the signal energized during the scanning interval when the top floor is scanned in the forward direction.
6 and 2-man power NOR circuit 47.

The two-man power AND circuit 48 inputs the basic clock CLO and the output of the two-man power NOR circuit 47, thereby generating a counter clock CL3.

The flip-flop circuit 46 refers to the output of the three-way NOR circuit 44 and the output of the three-way M(g) circuit 45 at the rising edge of the basic clock CLO, changes its state at the falling edge of the basic clock CLO, and thereby generates a scanning direction signal. (U.S.
/DS).

As is well known, the flip-flop circuit 46 is a three-man NOR circuit.
When the output of the circuit 44 and the output of the three-man power MO circuit 45 are both O, the state is not changed by the basic clock CLO.

FIG. 8 is a block diagram of an embodiment of the service direction determination circuit 34 shown in FIG.

In the figure, 51 is a floor scanning circuit, 52 is a call scanning circuit,
53 is a scanning mode discrimination circuit, 54 is a call detection circuit, 55
is a service direction command generation circuit.

The floor scanning circuit 51 receives a floor position encoded signal (FOlFl) obtained from the floor position register 36 and a scanning floor encoded signal (FCOlPCI) obtained from the scanning signal generation circuit.
) and when they match, a match signal (IDENT) is generated.
This is a so-called coincidence detection circuit that generates .

The call scanning circuit 52 receives landing calls (MIFU) output from the landing call storage circuit 32 and the car call storage circuit 33.
-M3FU, M2FD-M4FD) and car call (MI
C-M4C), the scanning direction signal (US/DS) obtained from the scanning signal generation circuit 31, and the scanning floor coded signal (
MO agates for the total number of hall calls and car calls configured to open the gates of a pair of hall calls and car calls corresponding to the scanning interval using FCOLPCI), and an OR using the output of these qAND gates as input. The call detection signal (YOBI) is the output of the above OR circuit.
Output.

The call scanning circuit 52 also includes a first multiplexer that selects and outputs the hall call corresponding to the scanning signal (US/DS, FCO, FCl) from among the hall calls input in parallel;
Of the car calls input in parallel, the scanning floor signal (FCOL)
A second multiplexer selects and outputs a car call corresponding to the car call (FCI), and the outputs of the first multiplexer and the second multiplexer are input, thereby generating a call detection signal (Y
It may also be configured from an OR circuit that outputs the output signal (OBI).

The scanning mode discrimination circuit 53 receives a coincidence signal (IDENT) output from the floor scanning circuit 51 and a scanning direction signal (US
/DS) and the scanning direction is forward (US/DS=
1) The upper scanning mode signal (USM) is generated from the point when the coincidence signal is output, and the scanning direction is reversed (US/DS).
=0), a downward scanning mode signal (DSM) is generated from the point at which a coincidence signal is output.

The call detection circuit 54 refers to the output of the upper call detection flag (UF) at the timing of the first synchronization signal CLI of the first scanning interval in the downward scanning mode, and at UF10, outputs the upward command flag set signal (UPSET) and UF. When = 0, the up command flag reset signal (UPRESET) is output.

The upward call detection flag is reset at the timing of the second synchronization signal CL2 in the downward scanning mode, and is reset by the call detection signal (YOBI) in the upward scanning mode when the downward service command is not generated (DN=1). Set.

The call detection circuit 54 also refers to the output (DF) of the downward call detection flag at the timing of the first synchronization signal CLI of the first scanning interval in the upward scanning mode, and when DF=1, outputs the downward command flag set signal. (DNSET), outputs a descending command flag reset signal (DNRESET) when DF=00.

The downward call detection flag is reset at the timing of the second synchronization signal CL2 in the upward scanning mode, and is reset by the call detection signal (YOBI) in the downward scanning mode when no upward service command is generated (UP = 1). Set.

The service direction command generation circuit 55 generates an up command flag set signal (UPSET) and a down command flag set signal (UPSET).
It consists of an up command flag and a down command flag, each set by the up command flag reset signal (UPRESET) and the down command flag reset signal (DNRESET), respectively.
The respective contents are output as an upward service command (UP) and a downward service command (DN).

FIG. 9 shows the scanning mode discrimination circuit 530 shown in FIG.
This is an example of a circuit.

The match signal (IDENT) is connected to the NAND circuit 61 and NAND
The scanning direction signal (US/DS) input to the circuit 63 is N
NAN via AND circuit 61 and inverter circuit 62
The signal is input to the D circuit 63.

The outputs of the NAND circuit 61 and the NAND circuit 63 are NAN
The signals are input to a D circuit 64 and a NAND circuit 65, respectively.

The NAND circuit 64 and the NAND circuit 65 are so-called RS
Configure the S flip Flora circuit and send the upper scanning mode signal (U
SM) and a downward scan mode signal (DSM).

It is clear that the circuit of FIG. 9 realizes the function of the scanning mode discrimination circuit 530 explained in FIG.

FIG. 10 shows the call detection circuit 54 shown in FIG.
This is an example of 0 circuit.

The first synchronization signal CLI and the coincidence signal IDENT are input to an AND circuit 71, and the output of the AND circuit 71 is input to an AND circuit 72 and an AND circuit 73.

The AND circuit 72 also includes an upper scan mode signal (USM).
is input, and the output of the MO circuit 72 is sent to the AND circuit 84 and A as a timing signal for checking the presence or absence of a downward call.
The signal is sent to the ND circuit 85.

A downward scanning mode signal (DSM) is also input to the MO circuit 73, and its output is sent to an AND circuit 82 and A as a timing signal for checking the presence or absence of an upward call.
The signal is sent to the ND circuit 83.

The descending service command DN is sent to N via the inverter circuit 74.
The signal is input to an AND circuit 76.

The NAND circuit 76 also receives an upper scan mode signal USM, a call detection signal YOBI, and a second synchronization signal CL2;
If a call is detected during the upward scan mode when a downward service command is not generated, the flip-flop circuit 80 is preset in accordance with the second synchronization signal CL2.

AND circuit 77 inputs downward scan mode signal DSM and second synchronization signal CL2, and its output resets flip-flop circuit 80 during the downward scan mode.

The ascending service command UP is sent to N via the inverter circuit 75.
The signal is input to an AND circuit 78.

The NAND circuit 78 also inputs the downward scanning mode signal DSM, the call detection signal YOBI, and the second synchronization signal CL2,
When no up service command is issued, if a call is detected off the down scan mote, it presets the flip-flop circuit 81 in accordance with the second synchronization signal.

The AND circuit 79 receives the upper scan mode signal USM and the second synchronization signal CL2, and its output resets the flip-flop circuit 81 during the upper scan mode.

AND circuits 82, 83, 84, and 85 are outputs UF, UF, DF, and D of flip-flop circuits 80 and 81, respectively.
F, and input the up command set signal (UPSET), up command reset signal (UPRESET), and down command set signal (DNSE).
T), outputs a descending command reset signal (DNRESET).

In FIG. 10, for ease of explanation, the up command relationship and the down command relationship are configured in separate circuits, but for example, NAND circuits 76 and 78, M circuits 77 and 79, and flip-flop circuits 80 and 81 are configured. It is easy to infer that things can be shared and simplified.

As is clear from the above description, by using a scanning signal that makes each scanning interval correspond to a scanning direction and a pair of scanning floors, the elevator service direction determination circuit can be made almost independent of the number of floors, or may be very small. It is possible to configure the system with several parts.

In the following, a signaling system for individual elevators that has been improved for fully automatic operation in groups will be described.

In order to apply the fully automated group ride system to the operation, each elevator's signaling device must have the function of determining which hall calls should be shared, as described above.

In the present invention, by using the second correspondence of penalty scanning signals, it will be explained below how the function for determining the share of landing calls can be simplified.

FIG. 11 shows a service direction determining circuit 34 that has been improved for fully automatic operation in a group-sharing manner.

The other functional blocks shown in FIG. 3 are omitted here because there is no change.

Further, as is clear from FIG. 11, the portion different from the service direction determination circuit shown in FIG. 8 is the call scanning circuit 5.
2', a hall call scanning enable signal (ENABLE) is added to the call scanning circuit 52 shown in FIG. 8, and an assignment area circuit 56 consisting of an assignment area control circuit and an assignment area flag is added. Just being there.

Therefore, in the following, only the call scanning circuit 52' and the assigned area circuit 56 will be described.

Call scanning circuit 52' is easily implemented by gating the hall call AND gate described in connection with call scanning circuit 52 of FIG. 8 not only by the scan interval but also by the hall call scanning enable signal (ENABLE).

The call scanning circuit 52' also receives scanning signals (US/DS, FC
This is also easily realized by connecting a hall call scanning enable signal as a so-called enable input of a first multiplexer which selects and outputs the hall call corresponding to the FCI.

FIG. 12 shows one embodiment of the assignment area circuit 56.

The a circuit 94 inputs the descending service command (DN), the scanning direction signal (US/DS), and the coincidence signal (IDENT) via the inverter circuit 91, and sends the output to the OR circuit 96.
send to

The AND circuit 95 inputs the coincidence signal (IDENT), the upward service command (UP) via the inverter circuit 93, and the scanning direction signal (US/DS) via the inverter circuit 92, and sends the output to the OR circuit 96. send.

Therefore, the OR circuit 96 outputs a signal indicating that the landing calls in the subsequent scanning interval are the landing calls that should be shared by the own vehicle.

Therefore, at this time, the OR circuit 96 and the first synchronization signal CL 1
The NAND circuit 98 inputs the signal S, F, and RESET for resetting the allocation area flags of other machines to the timing allocation area reset bus of the first synchronization signal CLI.

However, as is clear from the figure, S, F, and RESET also have an inverter circuit of 100°99
Since the assignment area flag 101 of the own machine, which is configured by a flip-flop circuit, is also cleared through the Only the assignment area flag 101 is set.

The output of the assignment area flag 101 is sent to the call scanning circuit 52' as a hall call scanning enable signal (ENABLE).

In FIG. 12, a first synchronization signal and a second synchronization signal that is generated a certain time later than the first synchronization signal are used in order to give priority to the set signal for the assignment area flag.
An SS flip-flop circuit may be used to give priority to the set signal.

From the above explanation, it has become clear that fully automatic operation with group riding is possible using a very simple circuit.

FIG. 13 shows a configuration example in which the scanning signal generation circuit 31 is shared, an elevator signal device 1' equipped with a shared area circuit is used, and the shared area reset bus is connected in common, thereby performing fully automatic operation in a group sharing system. It shows.

FIG. 14 shows a timing chart of the main signals, taking as an example the case where M3FU and M2FD are present in FIG. 4b.

In the figure, the signals of aircraft A and B are distinguished by -A and -B, respectively.

Fig. 13 shows a building with four floors and two elevators, but as is clear from the explanation so far, there is no limit to the number of elevators that can be installed. The number of signal lines from the scanning signal generation circuit 31 is independent of the number of elevators installed, and consists of three signal lines that are equal to the number of digits representing the number of floors of the building in binary and three that are independent of the number of floors.

For example, even if a building has 64 floors, the number of signal lines from the scanning signal generation circuit 31 is nine, which is very small.

Furthermore, the number of components constituting the scanning signal generation circuit 31 and the signal device 1' of each elevator is also almost unrelated to the number of floors, with the exception of the hall call memory circuit and the car call memory circuit, as has been explained so far. is clear.

Therefore, according to the present invention, it is possible to provide a highly reliable, low-cost, elevator signaling device that enables fully automatic operation of the elevator.

Figures 15a, 15b, 15c, and 15d are
A new and improved scanning signal is shown to illustrate the purpose of preventing multiple elevators from responding to the same call at the same time.

FIG. 15a shows that when elevator A and elevator B are both on the second floor, when using a scanning signal that makes the scanning interval correspond to the scanning direction and the pair of scanning floors, as is clear from the explanation so far, , indicating that both elevators will respond to a call for the third floor, for example, at the same time.

FIG. 15b is a block diagram of a new and improved scan signal generation circuit 31' for generating scan signals that correspond scan intervals to scan directions, scan floors, and scan elevator sets.

As is clear from FIG. 15b, the scanning signal generation circuit 31
' is simply an elevator scanning circuit 140 added to the scanning signal generating circuit 31 shown in FIG. 5, so only the elevator scanning circuit 140 will be described below.

The elevator scanning circuit 140 uses a counter to count a certain number of basic clocks CLOO generated from the clock generation circuit 41, and then outputs the basic clocks CLOO, as explained in FIG. 5, to the scanning direction switching circuit 42. .

Elevator scanning circuit 140 also decodes the contents of the counter and generates elevator designation signals (CNOlCNI, . . .
) and call detection timing signal (CL
IOlCL 20 ).

The elevator designation signal is sent to the assigned area circuit 56 of the corresponding elevator as another input of the AND circuit 97 and the NAND circuit 98.

The call detection timing signal (CLIO1CL 20) is
The first synchronization signal CLI and the second synchronization signal CL2 are input to the call detection circuits 54 of all elevator signaling devices in place of the first and second synchronization signals CLI and CL2, respectively.

FIG. 15c shows an example of the elevator scanning circuit 140, in which 141 is a 2-bit counter and 142 is a decoder.

In the figure, since the number of parallel elevators is two, a 2-bit counter and decoder are used, but it is easy to increase the number of counter and decoder pits according to the number of parallel elevators.

Next, the circuit will be explained.

Basic clock CLOO generated by the clock generation circuit
is input to the counter 141 and the AND circuit 143.

The contents of the counter 141 are sent to the decoder 142, and the decoder 142 outputs the elevator designation signal (CNOlCNI), the A1'= circuit 144 and the AND circuit 145, or the AND circuit 143 according to the input from the counter.
Direct any output to.

When instructed, the AND circuit 144 and the AND circuit 145 output call detection timing signals (CLl 0 , CL 20 ) to the call detection circuit 54 at the timing of the first synchronization signal CL1 and the second synchronization signal CL2, respectively.

When instructed, the AND circuit 143 outputs the basic clock CL.
The basic clock CLO is output to the scanning direction switching circuit 42 at the timing OO.

FIG. 15d shows a timing chart of the main signals under the conditions of FIG. 15a.

As is clear from the above, when multiple elevators try to respond to the same call at the same time, the elevator that responds to the scan interval slowly, that is, the elevator designation signal (CNO, CNI, . . . ), only the elevator with a predetermined higher priority will respond.

Therefore, by using a scanning signal that corresponds the scanning interrogation interval to the scanning direction, scanning floor, and scanning elevator set, a fully automatic group sharing system can be operated in which multiple elevators do not respond to the same call at the same time. can be easily realized.

As is clear from the above description, the present invention provides a service direction determining circuit for an elevator signaling device, in which a scanning interval corresponds to a pair of a scanning direction and a scanning floor, or a set of a scanning direction, a scanning floor, and a scanning elevator. By sequentially scanning landing calls and car calls using scanning signals, a simple structure that is almost unrelated to the number of floors in a building and the number of elevators installed can be achieved, dramatically reducing the number of parts and signal lines, and improving reliability. This makes it possible to provide elevators at high and low prices.

Furthermore, considering that the main specification changes in elevators are the number of floors in a building and the number of elevators installed, the practical effects of the present invention are very large.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an elevator to which the present invention is applied. FIG. 2 is a diagram showing a conventional signaling device. FIG. 3 is a block diagram of one embodiment of the present invention. FIGS. 4a and 4b show the concept of the scanning method of the present invention. FIG. 5 is a diagram illustrating in detail the scanning signal generation circuit 31 shown in FIG. 3. FIG. 6 is a diagram showing a timing chart of the signals shown in FIG. 5 in correspondence with scanning intervals T1 to T8. FIG. 7 shows an embodiment of the scanning direction switching circuit 42 shown in FIG. FIG. 8 is a block diagram of the service direction determining circuit 34 shown in FIG. FIG. 9 is a circuit example of the scanning mode discrimination circuit 53 shown in FIG. 8. FIG. 10 shows the call detection circuit 540 shown in FIG.
This is an example of a circuit. FIG. 11 shows a service direction determining circuit 34 that has been improved for fully automatic operation in a group-sharing system. FIG. 12 shows one embodiment of the assignment area circuit 56. FIG. 13 shows an example of a configuration for fully automatic group riding system operation. FIG. 14 shows a timing chart of the main signals, taking as an example the case where M3FU and M2FD are present in FIG. 4b. Figures 15a, 15b, 15c, and 15d are shown to illustrate a new and improved scanning signal designed to prevent multiple elevators from responding simultaneously to the same call. . 1... Signal device, 12... Control device,
31...Scanning signal generation circuit, 32...
Platform call memory circuit, 33... Car call memory circuit, 34... Service direction determination circuit, 35...
. . . Service floor determination circuit, 36 . . . Floor position register, 41 . . . Clock generation circuit, 42
......Scanning direction switching circuit, 43...Up/down counter, 51...Floor scanning circuit,
52... Call scanning circuit, 53... Scanning mode discrimination circuit, 54... Call detection circuit, 55
......Service direction command generation circuit, 56...
...Allotment area circuit, 140...Elevator scanning circuit.

Claims (1)

[Scope of Claims] 1. In an elevator in which a plurality of elevators serving multiple floors are installed in parallel, the signaling device of each elevator includes a landing call memory circuit for storing a landing call, and a car call storage circuit for storing a car call. A call memory circuit, a floor position register that stores the floor position of an elevator car, an allotment area circuit that sets the allotment area of the own car and resets the allotment area of other cars via the allotment area reset bus, and each scanning question. The service direction of the elevator is determined by sequentially scanning the landing calls and the car calls in the assignment area according to a scanning signal that makes the interval correspond to a scanning direction and a pair of scanned floors, and an ascending service command or a descending service command is issued. a service direction determination circuit that generates a service direction determination circuit, and generates the scanning signal for repeating sequential scanning from the bottom floor of the building in the forward direction to the top floor and from the top floor in the reverse direction to the bottom floor. A signal device for an elevator, characterized in that a signal generation circuit and the assigned area reset bus have a common configuration for all of the elevator signal circuits. 2. In the scanning signal generated by the scanning signal generation circuit, each scanning interval is made to correspond to a scanning direction, a scanning floor, and a set of scanning elevators, so that multiple elevators do not respond to the same call at the same time. An elevator signaling device according to claim 1, characterized in that: