JPH072574B2 - Elevator group management control device - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to an elevator group management control device, and in particular, a group management function is dispersedly provided in a control unit of each elevator, coupled by a high-level transmission line, and hardware Cost reduction of wear,
The present invention relates to a distributed elevator group supervisory control device for strengthening the system.

[Technical background of the invention and its problems] In recent years, an elevator system that uses group management control to operate a high floor and a large number of elevators with high efficiency has come to be widely used.

It is not uncommon for buildings such as hotels to which such a system is applied to exceed 30 stops. For this reason, the damage at the time of failure becomes large. Therefore, the group management centralized control unit, etc., which centrally controls hall call registration and allocation, is made redundant and the important functions are multiplexed to maintain reliability. .

However, at the same time, failure modes are diversifying as the group management function becomes more complicated.

However, at present, if the group management centralized control unit fails,
Since hall call registration cannot be performed, each elevator is forced to skip or stop operation on each floor, which causes a problem that damage is particularly large in a high-floor building.

These problems indicate the necessity of further improving the reliability of the group management centralized control unit and further enhancing the backup function at the time of the failure.

Moreover, since the number of I / O (input / output) in the group management centralized control unit is determined by the product of the number of elevators and the floor in the conventional method, the number of elevators increases and the number of floors increases. O related hardware costs will increase.

FIG. 19 shows a schematic configuration of a conventional group management system.

In the figure, A is a group management centralized control unit, which is composed of a group management unit 1 and a hall call registration unit 2. In addition, 3 is a hall lamp drive for driving hall lamps, 4 is a hall gate for hall calls, which is provided for each service floor and pushes a button on the floor to make a hall call on that floor. It is a circuit to generate. A main control unit 5 is provided for each elevator and controls the operation of each elevator. The hall call registration unit 2 registers the hall call data given from the hall gate 4 and registers the hall call data. Also, the hall call registration unit 2 responds to the hall call which is assigned from the elevator main control unit 5 and is landed. Delete the registered hole data. Further, in order to turn on the registered hall lamp on the landing floor, a control output is given to the driving hall lamp drive 3. In addition, the group management unit 1 allocates the floor of each elevator based on the data registered in the hall call registration unit 2 and controls various other controls.

The hall call registration unit 2 has recently been made into a microcomputer instead of the conventionally used hard logic structure, and has been changed to software control. Then, in addition to the functions as described above, there has appeared a device that can perform backup when the group management unit 1 fails. At the same time, the hall call registration unit 2 has various options such as disconnecting the designated floor hall gate, canceling, and system ionization.

Further, in the CD (cost reduction) type and the like, one in which one microcomputer has both the functions of the group management unit 1 and the hall call registration unit 2 has appeared.

Further, the group management unit 1 performs allocation and the like for hall call registration, but this is also becoming more sophisticated and complicated such as a type having a learning function and the like. Also, this group management unit 1
There has also been a backup of the basic function of the hall call registration unit 2.

As described above, the group management centralized control unit A has become highly reliable by multiplexing the functions, and at the same time, problems such as diversification of failures due to the higher functions have arisen.

Therefore, in a system with a centralized control unit,
At the same time as the sophistication, the sophistication of the backup function at the time of failure of the group management centralized control unit is becoming important, and the complexity and cost increase accordingly. On the contrary, a device having a simple centralized control unit has a structure that is extremely vulnerable to a failure, and has a drawback of lacking reliability even if it is inexpensive.

[Object of the Invention] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a low-cost hardware, a system that is resistant to failure, inexpensive, and reliable. It is an object of the present invention to provide an elevator group supervisory control device capable of significantly improving the above.

[Summary of the Invention] In other words, in order to achieve the above object, the present invention provides a group management system for activating a plurality of elevators for a plurality of service floors, allocating hall calls and operating during peak hours. The main control units of each elevator that perform the control of each hall have distributed response sharing evaluation function for hall calls, and each main control unit is connected by the advanced transmission technology and multiplexed to each main control unit. The hall gate data is input via the transmission line, and one of the main control units operates as a master station and the other operates as a slave station, and the master station performs hall call registration based on the hall gate data. The hall information is transmitted to each control unit so that the hall call can be answered.

In addition, this function is characterized in that each main control unit has the ability to act on its behalf.

[Embodiment of the Invention] The present invention inputs hall gate signal data by transmission to each main control unit that controls a single elevator, and enables hall call registration in the main control unit that has become the main. All main control units forming a group are connected by a loop-shaped (or bus-shaped) transmission line so that information can be sent and received. If the group management central control unit becomes abnormal, the next main main control unit registers the hall call and sends it to each main control unit. Further, the main main control unit receives the hall call deletion data from each main control unit, and registers and deletes the hall call.

Further, in the present invention, a bus-like (or loop-like) transmission line is used for input of hall gate data which is hall call data given from the hall gate 4.
Further, this transmission system also has a main station for transmitting hall call data, and if that station becomes abnormal, the main station of the next priority in the order of priority substitutes the same function.

In addition, each main control unit, for each hall call registration,
The estimated arrival time etc. is evaluated from the self-data, and this evaluation value is sent to all main control units through the main main control unit. Then, each elevator responds to the hall call with the best evaluation value of itself. However, when the waiting time for a hall call exceeds a predetermined limit as a measure for long waiting, a plurality of elevators are made to respond to the hall call. With such a distributed system configuration and control method, it is possible to maintain the basic group management function at low cost. Further, by providing a main station and a sub-main station and setting a certain rule, it is possible to strengthen the subordinate group management system.

Although the estimated arrival time is used as the evaluation function, another function can be used. In addition, it is possible to add a prediction of fullness, a prediction of first arrival of a car, and the like.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a system to which the present invention is applied. Reference numeral 5 in the figure denotes a main control unit of the elevator, and here, the main control unit 5 is shown with subscripts a to h corresponding to Nos. A to H of the elevator, respectively.

In addition to the control function of a single elevator, the main control unit 5 is further added with the following in the present invention. That is, as a newly added part, a loop transmission serial I / O unit (hereinafter, abbreviated as SIO) 11 to each main control unit 5 of the elevator, and a loop-shaped transmission line 12 that connects these SIOs 11, Further, there is transmission and simple group management software 13 for the main station set in one of the main control units 5, and transmission and simple group management software 14 for the sub stations set in the other main control unit 5. . Also,
The sub-station has its priority set so that it becomes the main station instead of this when the main station is abnormal (the preceding main station means the highest-priority station).

Further, data transmission is also used for input of a hall call gate signal from the hall gate 19 and drive control to the hall lamp drive 20. In the embodiment of the present invention, a bus-like transmission path is used for exchanging data with these,
Moreover, the transmission system is multiplexed and used. The number of transmission systems by this multiplexing is, for example, one bus-like transmission line is used for each riser and overlaps. That is, the riser means a system of hall calls. For example, if there are two sets of hall call buttons in a certain hall, the riser will go up and go down to 4 halls.
There will be a system (4 risers). As the number of transmission systems increases, the reliability can be ensured. However, since there is a relationship with the cost, it is better to double the number in practice. Of course, even if it is duplicated, it will be sufficiently resistant to failure. In the case of duplexing, the risers are separated into two groups and used.

In short, for implementation, a structure in which two or more bus-like transmission paths are prepared for the hall buttons on one floor is sufficient.

In FIG. 1, if it is assumed that the part surrounded by the one-dot chain line and marked with the reference numeral 22 is the first floor UP call (first floor ascending call),
Since the riser is n (where n is an integer of 2 ≦ n <k), it indicates that bus-like transmission lines multiplexed for n systems are used accordingly. 21a ~ 21n is a ~
The bus-like transmission line for each system of n is shown.

In FIG. 1, the main control unit 5a for each of the units A to H
Every 5h, transmission for the main gate station for bus-like transmission of data to the hall gate 19 and hall lamp 20 and other necessary control software 15 and transmission for other sub stations for gates and other necessary software The wear 16 is prepared so that, in the order of priority, the wear 16 can act in case of failure. Also, each main control unit 5a
A master node 17 is provided for each bus-like transmission path every ~ 5h. In the figure, the A-system transmission line 21a of Unit A is shown.
In the case of, the master node for the system is indicated by the symbol MA1, and the master node for the n-system transmission line 21n of the machine A is MAh,
Similarly, in the case of the master node for the n-system transmission line 21n of the H-th unit, it is indicated by MHh. A bus (transmission path) in which a failure has occurred in the bus-shaped transmission paths 21a to 21n for each system of a to h is disconnected.

In the present invention, a bus is prepared for each riser, but it can be said that the system is sufficiently resistant to failure if it is duplicated at a minimum. In the case of duplication, it is advisable to divide the riser into two groups. This is because even if one bus fails, there is always one or more hall calls on the same floor, so that it will not cause serious damage.

Each of the bus-shaped transmission lines 21a to 21n for hall gate input and hall lamp drive is provided with a sub node 18 as a hall side node.

The figure shows that sub-nodes 18 are prepared for each transmission line 21a to 21n and for each floor ascending / descending direction. For example, Sa ₁ is the first floor of transmission line 21a which is an a-system bus. It is a sub-node for the ascending direction of system a. Also, Snm
Is a subnode for the m-th order n-system ascending direction on the transmission line 21n for the n-system bus n. The input of the hall gate 19 and the hall lamp drive 20 are connected to the subnode 18, and the subnode 18 also performs these inputs and outputs.

These bus-like transmission lines allow each unit to input a hall gate signal, and the station whose main station is SIO that performs loop-like transmission can perform hall registration and output hall lamps. These are operations that read or write to RAM, that is, read,
It can be done by a light operation. In addition, it is possible to follow a plurality of floors or a plurality of risers for the hall lamp of the subnode 18 and the hall gate input.

The master node 17 of the main control units 5a to 5h uses the polling selection method, which is a widely used communication method, and the
CSMA / CD method (Carrier Sense Multiple Access / Collisi
on detection), it has the function of inputting the hall gate data of all the sub-nodes 18 and sending the hall lamp drive data, and the sub-node 18 passively drives the hall lamps and also receives the hall gate data. It is sent to the master node 17. As described above, the sub-node 18 is used in the same manner as the conventional input / output element, but it can be used only by connecting it to the bus, so that it has a simple configuration.

When the transmission lines 21a to 21n have a long bus length, a repeater (repeater) or the like is provided on the way and terminators (terminating devices) or the like are provided at both ends for use.

In this embodiment, a serial transmission line using an optical loop or an optical bus is used as the transmission line in order to secure high transmission capacity and reliability. But this is a coaxial cable,
A twisted pair wire is also acceptable. Since the optical loop line is the transmission between the control boards (main control unit 5), the cable can be a low-cost plastic optical cable. Also, the sending and receiving units operate at 5V TTL level and the baud rate is 2Mbps.
Therefore, a general-purpose serial transmission LSI (large-scale integrated circuit) or a one-chip microcomputer (hereinafter referred to as one-chip microcomputer) can be used, and the configuration can be made at low cost. (Of course, higher speed allows faster control instructions and higher performance.) Data link method is also general polling / selecting with (main station) main station and (slave station) sub station. The application of the method and normal HDLC (high level data link control procedure) can be used. In addition, CSMA / CD for bus-like transmission
Methods etc. can also be used. With these general-purpose software, when viewed from the software of each main control unit 5a-5h
Data can be sent and received in the same way as I / O to I / O. Also, by giving the main station and sub stations a certain rule, the system is strengthened even at low cost.

In addition, the outline of the hardware configuration of these transmission units is
Shown in FIG.

FIG. 17 is a configuration diagram of a transmission-related part in the main control unit 5. In the figure, 17a is a one-chip microcomputer, 21 is a transmission path for bus-like transmission, 30 is a transmission LSI, 31 is a multibus, 32 is a shared RAM (random access memory), 33 is a control CPU,
34 and 35 are interfaces. A portion of the SIO in FIG. 1 that performs loop-shaped transmission is a transmission LSI 30, and this transmission LSI 30 has a buffer inside and also automatically checks transmission abnormality. The control CPU 33 is responsible for overall control, and the control CPU 33 that performs the actual main control
From the perspective, the transmission LSI 30 can be used on the principle of reading and writing to RAM. In recent years, such intelligent LSIs have become available at low prices. Further, the transmission line 12 of the optical loop is connected to the transmission LSI 30 via an interface 35. The transmission LSI 30, the control CPU 33, the shared RAM 32, and the like are tightly coupled by the multibus 31.

Further, a one-chip microcomputer 17a for the master node 17 used for bus-like transmission is connected on the multi-bus 31. The one-chip microcomputer 17a has a built-in transmission function and I / O function. These one-chip microcomputers 17a have become low in price in recent years and are used in many fields. The bus of the one-chip microcomputer 17a is connected to the transmission path 21 for bus-like transmission via the interface 34.

The configuration of the above-mentioned transmission LSI or one-chip microcomputer can be freely changed regardless of the bus shape or the loop shape.

In the present invention, a transmission LSI is used to exchange a large amount of data at high speed in the transmission between loop main control units,
A one-chip microcomputer was used for hall-gate input, which is sufficient for normal transmission, and bus-shaped transmission of hall lamp drive data.

FIG. 18 shows an example of the hardware configuration in the case where the one-chip microcomputer 18a is used for the sub-node 18 for the bus gate transmission of the data for the input of the hall gate 19 and the drive of the hall lamp 20.

The transmission line 21 for bus-like transmission is connected via an interface 34, and the inputs and outputs to the hall gate 19 and the hall lamp 20 are connected via an interface 36. The one-chip microcomputer 18a is similar to the one-chip microcomputer 17a described above and has a built-in transmission function and I / O function.

Next, the operation of the above embodiment will be described.

In the present invention, bus-like transmission lines 21a to 21n are provided for each riser, and a hall gate belonging to each riser is provided.
19, the hall lamp drive 20 is connected to the bus-like transmission line to which it belongs via the subnode 18 provided for each floor unit, and each main control unit 5a-5h is connected to each bus-like transmission line 21a- Information is transmitted and received from a corresponding sub node provided with the master node 17 every 21h.

Therefore, since the data of the hall gate is given from each sub node to each master node, even if the riser is different, if the hall call button in the same direction on the same floor is pressed, the hall gate 19 corresponding to the hall call button is The data of the hall gates will be sent from the corresponding subnode to the corresponding master node by closing, and some of the bus-like transmission lines 21a to 21n will be disconnected or some of the master nodes and subnodes will fail. Also, the main control units 5a to 5h can receive the data of the hall gate.

Similarly, data transmission between the main control units 5a to 5h is performed through the respective SIOs 11 and the loop-shaped transmission path 12. Each of the main control units 5a to 5h has a function as a main station and a function as a sub station, a group management control function, and a normal stand-alone elevator control function, but usually the highest one of the predetermined priority order. Functions as the main station, and other functions as the sub station. The main station exchanges data with the subnodes, and each station, that is, each main control unit
5a to 5h registered hall calls, car calls, etc. data are received and summarized, and sent to each station, and at each station, based on this, the response sharing evaluation for the newly generated hall call is performed,
By comparing this with the evaluation values of other stations, the station which is the optimum answering machine for the new hall call performs group management control such as allocating the hall call to its own station.

A more detailed description will be given with reference to the flowcharts of FIG. 2 and subsequent figures.

When the program starts in each main control unit 5a-5h, the RAM (random access memory) table is initialized, each LSI is initialized, and the one-chip microcomputer is initialized in step 3-1 to enable the system clock and transmission interrupts. To be done. Then RSP
Passing (repeat start point), step 3-2
Elevator control program is implemented. Here, normal control of the elevator alone is performed.

Next comes the part that has been added in the present invention. That is, step 3-3 is entered, and first, the auxiliary group management process is performed. When the 3-3 steps are completed, the process returns to the RSP again, and the above steps are repeated. The auxiliary group management processing routine at step 3-3 has a structure as shown in FIG.

That is, when step 3-3 is executed, the routine shown in FIG. 3 is entered. Here, first, step 4-0 is executed, and in this routine, it is checked whether or not the own station is the main station. As a result, if the own station is the main station, the routine of A4 is entered, and if there is an abnormality in each unit, and if there is an abnormality, the abnormal unit is disconnected (step 4-7). (If the main station is abnormal, the next main station will be the main station.) If it is not the main station, the process after 4c will be performed. The main station then proceeds to step 4-3 of the 4A routine. Then, the hall call registration data is transmitted to each unit and the erase data is requested via the SIO and the loop transmission line 12. Tables necessary for hall call registration include HCALL, IHCALL, HGAT, etc. shown in FIG. Fig. 5 shows an example with a maximum of 32 stops. 1
This is a RAM table in which bits indicate one floor, are divided by UP (up) / DOWN (down), and are composed of a total of 8 bits of "0" to "7" bits. HCALL is a hall call registration data table, IHCALL is a hall call registration deletion data table, and HGAT is a hall gate data table. This is the data collected by the one-chip microcomputer by bus transmission.

As described above, in the 4A routine, first, step 4-7 is executed, the abnormal machine is disconnected, then step 4-3 is entered, and the hall call registration operation is turned ON (HCALL $ ON $). A request for erase data is made with FLG = 1).

Here, the hall call registration operation will be described with reference to FIG.

Hall call registration is performed during timer interruption (10msec timer). By this timer interrupt, the routine shown in FIG. 6 which is the software 15 for the gate main station is entered. Then, the registers and the like are first pushed, and then step 7-1 is entered to increment the system timer. Next, in step 7-2, system monitoring is performed. Next, hall call registration operation is ON
If the hall call registration operation is ON (HCALL $ O)
N $ FLG = 1) Step 7-3 is entered and the hall call registration deletion process is performed. This part is explained in detail in FIG. That is, upon entering step 7-3, the routine of FIG. 7 is entered, and the DO loop of step 8-1 processes the indexes of 0 to 7. This is the fifth
32F in the example of hall call registration data table HCALL in the figure
This is because 8 bytes are processed because the (floor) MAX (maximum floor 32) is set. When the processing for the index ends, the process goes to step 8-2, where the master node
The hole gate is input from the sub-node 18 side obtained via 17 and moved to HGAT (I). Next, in step 8-3, the hall call registration data HCALL (I) and OR
Take the (logical sum) and go to HCALL (I) again. In order to erase holes, IHCALL at step 8-4.
(I) Take the NOT logic and AND logic of (hole erase data)
Go to HCALL (I). If it has a lamp drive circuit (that is, if the hall lamp is connected from the main station machine in Fig. 1) HCALL (I)
Is output (step 8-5).

In the configuration of FIG. 1, this circuit is omitted for cost reduction. Next, it is determined whether or not the I of the DO loop has reached 7, and if it has not reached, I is incremented and the above operation is repeated, and when I reaches 7 and the above operation at that time ends, it returns. . Now step 7-
3 ends, the pushed register is popped, and the timer interrupt returns. In this way, the hall call registration operation is performed. In the case of a sub station, the data of the hall call registration data table HCALL from the main station is used as it is, but this is given by being sent from the main station to each sub station side via the SIO 11 and the loop transmission line 12.

Next, a method of making a determination for disconnecting the abnormal machine or the like in step 4-7 in the routine 4A of FIG. 3 will be described.
Here, the transmission at the time of abnormality will be described together with Steps 4-0. In other words, the abnormality determination is made based on the fact that the reception control signal ACK does not arrive even if the transmission abnormality via the loop-shaped transmission line 12 is retried several times. That is,
In step 4-7, the transmission abnormal unit is checked by test transmission, and if normal, it is returned. (However, the abnormality here does not indicate only the case of transmission abnormality.) Now, it is assumed that the loop has a configuration as shown in FIG. In the figure, A is the main station and E is the next main station, and the hall gate is input. Normally, E is a substation. If the main station A becomes abnormal at this point, the main station A does not carry out initiative transmission, so this is detected in step 4-0 and the sub station E becomes the main station. That is, the sub station also executes step 4-0 to check whether or not the main station is in the lead transmission, and if the lead transmission is not performed, it is determined that the main station is abnormal and the next order is made. The sub station of switches to the main station. Which sub-station changes to the main station depends on the priority, but to determine that the own station has reached the highest priority, for example, give a waiting time according to the priority and wait until the waiting time elapses. It is conceivable that the main station can switch when it cannot obtain the initiative transmission. Of course, other appropriate methods may be used. In this way, when the E station becomes the main station, it enters step 4-7 and cuts the abnormal A station.

Next, as shown in FIG. 10, it is assumed that the main station A is normal and the loop is divided between sub stations C and D. In this case, the transmission data is normally transmitted by returning from the C and D stations, so there is no disconnection of the machine. If the station A is normal and any of the sub stations B to H becomes abnormal, the abnormal station is disconnected in step 4-7.

Next, as shown in Fig. 11, when the C and D stations are separated from the F and G stations and a serious failure occurs, the D, E, and F stations are seen from the group connected to the A station side. Becomes abnormal and these are separated (step 4-7). Seen from the group connected to the E station side, the initiative transmission from the A station disappears, so the E station becomes the main station (step 4-0) and the A to C, G, and H stations become abnormal. Disconnected (Step 4-
7). In this way, group management control is performed by dividing into two groups.

Next, as shown in FIG. 12, when C and D stations, F and G stations, and G and H stations are severed and a major failure occurs, the A station side group determines the A station as described in FIG. 11. Main station, H with H, B, C as sub stations
-A-B-C, and the group on the E station side is group-controlled in the form of D-E-F in which E station is the main station and D and F are the sub stations, and only G station is the independent control. . That is, in this case, only the No. G machine is in the selective collective operation. In the past, hall calls were not input, and all units were skipped or stopped on each floor, but as described above, in the present invention, even if there is a serious failure, backup is performed for each other, and therefore a multiplex system for each is used. The group management operation can be implemented within the group.

From the above description, it is understood that according to the present invention, even this low-cost configuration can withstand a considerable number of serious failures.

Next, the description proceeds to step 4-3. In step 4-3, the main station sends hall call registration data and requests to output hall call deletion data to each sub station. They are replaced with the transmission code in the format shown in Fig. 4, the number of bytes, (the number of bytes of the next transmission data), and data (however, STX: start text, ETX: end text, BC).
S: block check sequence). In this routine, when the hall call registration data is transmitted, it can be considered that 8 bytes of the hall call registration data table HCALL are sent as the data and 8 bytes of the hall call registration data table IHCALL are received as the erase data. The ON bit is registered for HCALL, and the ON bit is deleted for IHCALL.

Next, the main station enters 4B and proceeds to the routine 4-4. In this routine, the main station and the sub stations are requested to output the evaluation data of the hall call registration floor, and the collected data is transmitted to all the units, that is, all the sub stations via the loop transmission line 12. The data format is as shown in FIG. 13 (a). These are replaced with the transmission code, the number of bytes, and the data in FIG. 4 and sent. However, "OFF" H (indicating "OFF" in hexadecimal) is set as the worst evaluation for abnormal stations. That is, the first byte is the direction UP / DOWN of the hall call registration floor and position data, the second byte is the unanswered time of that floor ("OFF" H or more is "OFF" H), the 3rd to 10th bytes are A ~ It is an evaluation value of No. H machine (an example of 8 units configuration). The unanswered time of the second byte is obtained by activating the timer HRCT1 (Fig. 8) when the hall call registration becomes 0 → 1. HRCT1
Considering the 32 stops in this example as shown in Fig. 8, 32D (3
2nd floor down) ~ 1U (upst floor 1st) ~ 31U (31st floor up) corresponding to HS (Hall Sub Index). If it is not zero, it will be counted up by the timer every 1 second. This count-up starts from "OOO" H, and when it goes to "OFF" H, no further count-up is performed. Thus, by reading HRCT1, the non-response time is obtained. HRCT1 on the floor is cleared when the hall call is cleared. And the third
In the routines after 4C in the figure routine, each station receives these data from the SIO receive buffer in the table H $ HRCT1 (HS) of the hole sub-index HS corresponding to 32D to 31U,
YRESP (HS (Hall Sub Index), CAR (Unit))
Save and import them respectively (Fig. 13 (b)). At the same time, the hall call registration data table HCALL data is also saved from the reception buffer to the HCALL $ TR (Fig. 4) table. However, the main station saves the data returned for about one week by going around each sub station connected to the loop transmission line 12 in order. That is, data transmission from the main station is performed to the downstream sub station, and the downstream sub station transmits to the further downstream sub station and finally returns the data to the main station, but each station receives the data. At that time, the data is fetched and saved or updated.

Next, both the main station and the sub stations proceed to the routine of step 4-5. This routine is a routine for deciding the self-response sharing, and is composed of the following routines (a) and (b).

(A) Response of self-assessment to the optimal floor.

(B) Response to the long waiting floor.

Of these, the routine (a) is shown in FIG. That is, when this routine is entered, the hole sub-index (HS) 0 to 61 (32D to 31U) is checked in step 16-1.

Next, in step 16-2, the presence or absence of hall call registration is checked from the transmission data HCALL $ TR (see FIG. 5). If there is no hole condition table, HCT (HS) = 0 in FIG. If yes, step 1
Enter 6-3 and save the data YRESP (HS, CA
R) (see FIG. 13 (b)), the CAR data is 0 to 7
Up to, and know the CAR that has the best response to the floor where the hall call is registered from its evaluation value. If the self is optimal, HCT (HS) = 1 and if not, HCT (HS) =
Set to 0. HCT (HS) is a response table to the hall call on the floor, "1" is answered and "0" is unanswered.

Next, the long waiting check routine of (b) will be described. This description is shown in FIG. The hole sub-index HS searches sequentially from "0" to "61". When the non-response time H $ HRCT1 (HS) of transmission data (see FIG. 13 (b)) exceeds the limit value H $ LMT (40 seconds in this example), the response table is turned on by step 19-1 ( on)
To be done.

As a result, the hall call response was set in the HCT (HS). When the above routine is completed, the process goes to 4D in FIG. Then, steps 4-6 are executed. This step 4-6 is a routine for calculating the predicted arrival time. Enter the explanation.

In the example of the present invention, the estimated arrival time to the floor is used as the evaluation value, but there are various other evaluation methods. As an evaluation method, for example, a full value of the predicted value is added, or a function of the predicted arrival time is used. However, in this example, the predicted arrival time is used for simplification. In order to calculate the predicted arrival time, in addition to the data such as the position of the self, the hole condition table HCT and the car condition table KCT showing the call state shown in FIG. 8 are required.

HCT: Hall call stop floor is 1.

KCT: The car call stop floor is 1.

Using these, the predicted arrival time I $ YRESP (HS) on the HS floor is calculated by the following formula.

Here, TRAN (αm, βm) indicates the traveling time of the car from the αm floor to the βm floor, and TLOS (βm) indicates the total time of door opening / closing operation time, passenger entry / exit time, and door opening time on the βm floor, Also, l indicates the number of floors in which the car stops halfway before reaching the HS floor (including the HS floor).

From the above, the estimated arrival time I $ YRESP (HS) of each floor can be obtained. However, "OFF" H (hexadecimal) or higher is "OFF" H. These data are used when there is a transmission request. HCT and KCT are the factors that determine the operation of the car.

With the above, the calculation on each floor ends and the process returns. Then, the process returns from 4E in FIG. 3 to the main program. After that, from REPT in FIG. 2, the operation jumps again to RSP (repeat start point), and the same operation as described above is repeated.

The operation of the present invention has been described above.

As described above, according to the present invention, the main control unit of each single elevator is provided with a group management control function, and the main control units are connected by a loop-shaped transmission line to enable data exchange and hall call information. Input to each main control unit via the multiplex transmission line, and use one of these main control units as the master station to collect information and to provide the collected information to the slave stations. In addition to performing self-evaluation of response sharing, it also determines whether or not it is optimal by referring to the evaluation contents of other stations.If the optimal station is its own station, it registers the response by itself. Therefore, the system can be configured with low-cost hardware, and it is resistant to transmission line failure, and the slave station can function as a master station when there is a master station failure or transmission path failure. Because even in some fault, such as it will allow without impairing the basic group management control, and high reliability group management system.

The present invention can also be used for backup of the group management centralized control unit, and in this case, the hardware that must be added to the conventional system can be low cost. Also, other group management functions, such as peak operation, can be similarly controlled by the main station by exchanging data between the units. These can be implemented by a combination of the above-described information transmission method and the conventionally used algorithm.

Further, the present invention, in the system described above, the one-chip microcomputer constituting the sub-node for bus-like transmission of the hall is provided with the hall call registration function in a distributed manner from the main node provided on the main control units 5a to 5h side. If the configuration is such that the mask data of different holes and the command for erasing output are performed, the load on the group management unit in the main control units 5a to 5h is reduced, and the processing time can be expected to be shortened. Also, the data of the hall waiting sensor that detects the presence or absence of hall waiting is input to the one-chip microcomputer that constitutes this sub-node, the hall waiting detection is detected, and it is transmitted to the group management function unit, When used for management, it is possible to make a higher performance group management system.

[Effects of the Invention] As described in detail above, the present invention connects a plurality of main control units for controlling a single elevator by a transmission path to transmit information, and at the same time, each main control unit has a response sharing evaluation function for hall calls. In order to perform group management by distributing, group control operations are distributed to each single main control unit without using the centralized control unit that controls the entire control. A loop-shaped transmission line is used to combine these to exchange information, to allocate a hall call, and to input a hall gate signal through a multiplexed bus-shaped transmission path. For this reason, it is possible to perform group management with inexpensive hardware, which is resistant to failures and has sufficient functions, and is therefore cheaper than before and features such as fail-self and fail-soft levels are greatly improved. It is possible to provide a highly reliable elevator group management control device.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing an embodiment of the present invention,
Figure 2, Figure 3, Figure 6, Figure 7, Figure 14, Figure 15, Figure
FIG. 16 is a flow chart for explaining an embodiment of the present invention, FIGS. 4 and 13 (a) are data configuration diagrams used in the present invention, and FIGS. 5, 8 and 13 (b) are main data. 9 is a block diagram showing a configuration example of a table used in the present invention, FIGS. 9 to 12 are model diagrams used for explaining the present invention, FIG. 17 is a block diagram showing a configuration example of a transmission unit used in the present invention, and FIG. The figure is a block diagram showing the configuration of a conventional system. 3 …… Hall lamp drive, 4 …… Hall gate, 5
a, ~ 5h …… Elevator main control unit, 11 …… Serial I / O unit, 12 …… Loop transmission cable, 13 ……
Loop transmission main station software, 14 …… Loop transmission sub station software, 15 …… Gate main station software, 16 …… Gate sub station software, 17 …… Master node, 18 …… Sub node, 19 …… Hall gate, 21a
~ 21n …… Bus-like transmission line.

Claims (5)

[Claims] 1. A group management control of elevators, wherein a plurality of elevator devices are provided for a plurality of service floors to activate the elevators, and optimal elevators are assigned to service a hall call common to these elevators. As a system, the individual elevator control units for independently controlling the plurality of elevators are connected to each other via a transmission line, and the individual elevator control units and the hall call generating means of each hall are connected via a transmission line. In addition, each individual elevator control section is provided with an input means for inputting hall call data and a response sharing evaluation means for performing response sharing evaluation for hall calls, and each single elevator control section is preset. According to the priority order, the higher ones function as master stations and the others function as slave stations. In addition to providing a means for providing data to slave stations, each station refers to the response sharing evaluation result of the newly generated hall call and the response sharing evaluation content of each station, and when it has the optimum response sharing evaluation content, An elevator group supervisory control device comprising an allocating means for allocating a response to a station. 2. When each single elevator control unit operates in accordance with the set priority, when the single unit elevator control unit which is the main station has an abnormality, the next one operates as the main station and the others operate as slave stations, and the abnormal single unit elevator control unit The elevator group supervisory control device according to claim 1, characterized in that is separated from the transmission line. 3. The elevator group management control device according to claim 1, wherein there are a plurality of transmission lines connecting each single elevator control section and the hall call generating means of each hall. 4. The response sharing evaluation is performed by using the evaluation value, and the evaluation value of each elevator unit for a newly generated hall call is calculated by each elevator control unit and sent to each elevator control unit. At the same time, the elevator group supervisory control device according to claim 1, characterized in that only the single elevator having the optimum evaluation responds to the hall call. 5. A loop-shaped transmission line is used as a transmission line between the individual elevator control units, and a folding point is preset between the individual elevator control units according to the abnormal point when the transmission line is abnormal. The group management of elevators according to claim 1, wherein the single elevator control units are grouped in accordance with the above, and a function of operating a predetermined single elevator control unit of each group as a main station is provided. Control device.