JPH07121792B2 - Elevator signal transmission device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a signal transmission station provided in a control panel of an elevator machine room and a signal transmission station provided in each hall floor and a car. The present invention relates to an elevator signal transmission device that performs signal transmission.

[Conventional technology]

FIG. 3 is an overall view of a conventional elevator signal transmission device. The signal transmission system of this device includes a control microcomputer (1) for the elevator machine room, remote stations (2a) to (2n) provided on each floor of the hall, and a remote station (3) provided in the car. Signal (call registration signal) is transmitted via a bus type transmission line (8). Remote station on each floor (2
The hall call registration signals from a) to (2n) are sent by hall call buttons (4a) provided on each remote station.
~ (4n) is performed, and the registration completion is displayed on the hall call registration lights (5a) to (5n) also provided in each remote station. The car call registration signal is transmitted by operating the car call button (6) provided on the remote station (3) in the car, and the car call registration is completed when the car call registration is completed. It is displayed by turning on the registration light (7).

As shown in FIG. 4 as the configuration of the control microcomputer (1), it is determined whether or not a main station (9) for performing signal transmission processing, data initialization, etc. and a call registration signal described later are erroneously registered. , And a determination unit that registers a call according to the determination result.

Next, the operation of the conventional device having the above structure will be described with reference to FIGS. Figure 5 is a control microcomputer (1) the signal input and output between each remote station RS1～RS8, a timing chart and separated by each time cycle (T ₁₎ ~ (T _6). The content of each bit string signal transmitted is as follows.

(1) Correspondence of each bit (2) Signal level According to the above description, the remote station 1 (RS
When there is a call input in 1), the signal level of the 0th bit becomes Low level. The other 7 bits are high level outputs.

Further, if the contents of FIG. 5 are specifically described with respect to the T ₁ and T ₂ cycles, (1) the control microcomputer (1)
_{At 1} , the call output request signal (FF in this example) is output to the transmission line (8) to each remote station (RS1 to RS8). On the other hand, each remote station (RS1 to RS8)
Receives the call output request signal output from the control microcomputer (1) on the transmission line (8) at time T ₁ (T ₁
cycle).

(2) each remote station (RS1～RS8) is a trigger output request signal called input from T ₁ cycle Te transmission line (8), at time T _2, the output signal data call over a transmission line (8) To do. On the other hand, control microcomputer (1)
Indicates that each remote station (RS1 to RS8) has output on the transmission line (8).
The signal data obtained by wired ORing the call signal data of 8) is input as the call signal data. (T ₂ cycle) Then, in T ₂ cycle, 2 bits of remote station RS3 and 5 bits of remote station RS6 are Low.
Since it is a level, it represents a state where there is a call at the remote stations RS3 and RS6.

On the other hand, in the call signal data input by the control microcomputer (1), the signal levels of 2 bits and 5 bits corresponding to the remote stations RS3 and RS6 are the low level indicating the state of calling.

T _3, T ₅ cycles of operation, T ₁ cycle operation to same.

T _4, T ₆ cycle of operation is identical to the operation of T ₂ cycles.

In the above time chart, call occurred each remote station (RS1~RS8) between T _a is registered call to the control microcomputer with T ₄ cycles. Similarly, the call generated during T _b is registered in the control microcomputer (1) in the T ₆ cycle. Therefore, hereinafter, the term "calls generated within a predetermined time period" means the calls generated within T _a (= T _b ).

Next, regarding an example of call signal data input by the control microcomputer (1) through the transmission line (8),
A description will be given with reference to FIGS.

(1) In the figure (a), the call signal data (a) shows a state in which there is no call input to each remote station (RS1 to RS8). That is, the bit signal levels other than the start bit are High.

(2) In the figure (b), the call signal data (b) shows a state in which a call is generated at the remote station RS3.

(3) In the same figure (d), the call signal data is caused by noise (the same figure (c)), and the remote stations (RS2 to RS5)
Shows a state in which a predetermined number or more of false calls have occurred within a predetermined time.

Then, the call signal data shown in (a), (b) and (d) above is input to the control microcomputer (1) through the transmission line (8).

Next, the signal receiving operation of the control microcomputer (1) will be described with reference to the flowchart of FIG.

First, call signal data is input from the transmission line (8) (processing
300), the determination circuit (10) determines whether or not a predetermined number or more of calls as shown in FIG. 6 (d) occur frequently within a predetermined time (process 400). If it is determined that the calls of the predetermined number or more occur frequently, the cause thereof is, as shown in FIG. 6 (c), noise is generated in the signal transmission system and the signal level of a plurality of bits becomes the Low level. As a result, the generated call is not registered in the main station (9) as false call signal data (process 500). No. 6 at the main station (9)
As shown in FIG. 7A, signal data without a call is registered. In addition, a predetermined number or more of calls are not generated, so that FIG.
The call signal data in which the call is generated is registered as shown in (process 600).

The detailed operation of the process (400) will be described with reference to the flowchart of FIG. 8. First, the input call input bit string data is shifted to the left by one bit (process 401), and whether the carry flag indicating the call input signal is "0". Determine whether or not (Process
402). At this time, if the carry flag is “0”, that is, the low level signal in the call signal data is counted,
The counter 1 is incremented (process 403). And L
If it is determined that the count value, which is the number of ow level signals read, is equal to or greater than the predetermined value (process 404), the counters 1 and 2 are initialized (processes 405 and 414), and the process proceeds to process (500) and is regarded as false call data. Do not register the call with the main station.

Alternatively, if the counter value of the counter 1 is not more than the predetermined number, the number of data bits of the call signal data, which is the call signal input from each remote station, is counted, and the counter 2
Is incremented by 1 (process 406). It is checked whether or not this counting result matches the set call input data bit number (see FIG. 6 (a)), which is the call signal input from all remote stations, and the result is less than or equal to the input data bit number. If it is determined that the input data bit from the remote station on the other floor is further checked, the process returns to step (401). In the processing (407), the counter 2
It is determined whether the counter value of is equal to the number of call data bits (8 bits in the embodiment). If the results of this determination are equal, counter 2 and counter 1 are initialized (process 408,
413), (procedure 600), the determined call data is registered in the main station.

[Problems to be Solved by the Invention]

The conventional elevator signal transmission device is configured as described above, and if there is a predetermined number or more of call inputs within a predetermined time, it is determined as an erroneous call input and is canceled. However, no measures have been taken to deal with the case where the number of calls is large enough to be judged as a false call input, and in reality, even if the frequent call input is a normal call input, it is canceled as a false call input. In some cases, the call is not registered as a call input, which causes a problem such as giving passengers an unpleasant feeling.

The present invention has been made in order to solve the above problems, and when the number of call inputs is greater than a predetermined number within a predetermined time, there is no possibility of unique cancellation as a false call input. An object is to obtain a signal transmission device for an elevator.

[Means for Solving the Problems] A signal transmission device for an elevator according to the present invention is provided on a main station for signal transmission provided on a main control panel of an elevator, an operation panel on each floor of a hall, and an operation panel in a car. In addition to arranging the signal transmission line between the remote stations for signal transmission, the number of call registration signals generated within a certain period of time, which is a criterion for miscall registration, is set in the main station. A judgment circuit for judging that the call registration signal has been transmitted more than the set number of times, a counter for counting the number of times judged, and when the number of times the number of counts exceeds a certain value, the number of times setting value is increased to And a frequency setting circuit for increasing the call registration signal determination level.

[Action]

The signal transmission device for an elevator according to the present invention automatically raises the determination level of a false call input when the number of call signals of a predetermined number or more is detected within a predetermined time, and the predetermined number up to the predetermined number. The call input within the time is set to be a regular call input.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. First
The figure shows the control microcomputer (1
It is an internal block diagram of a). In the figure, (9) is a master station for registering calls, (10) is a judgment circuit for judging that there are more than a predetermined number of calls set in a predetermined time, and (11) is the number of times of judgment of calls more than the predetermined number The counter (12) is a predetermined number setting circuit that increases the predetermined number set in accordance with the number of determinations made by the counter (11). The overall configuration of the signal transmission device is the same as that shown in FIG.

Next, the operation of this embodiment based on the above configuration will be described with reference to the flowchart shown in FIG. This flowchart is a detailed operation flowchart when the processing (400) shown in FIG. 7 is executed in this embodiment, and other processing (10
0) to (300), (500), and (600) are the same as in the prior art. First, the call signal data input from the transmission line (8) is shifted to the left by 1 bit, and it is determined whether the carry flag is "0", that is, the bit signal level is Low and there is a call input ( Process 401), (Process 402). If the carry flag is "0", the count 1 for counting the number of calls is incremented to count the number of call inputs (process 403), and whether or not this count value is equal to or greater than a predetermined number set in advance. It is determined (process 404). At this time, the process (400) has already been repeated several times, and if it is determined that the number of call inputs in the 1T cycle is equal to or greater than the predetermined number, the counter 1 is initialized (process 405) and the counter 2 is further initialized. After (processing 414), a counter 3 that counts the number of times that a predetermined number or more of call inputs occur during 1T cycle.
Is incremented (process 409). After that, it is determined whether the counter value 3 is a predetermined number or more (process 410), and if it is not the predetermined number or more, it is processed as a frequent occurrence of call input accidentally caused by noise on the signal line (500) (FIG. 7). Go to and do not register as miscall data in the main station. or,
If it is determined that the counter value 3 is equal to or more than the predetermined number as a result of the increment of the counter 3, 1 is added to the predetermined number that determines the call input number allowable value within the predetermined time (1T cycle) and is updated ( Processing 411), then the counter 3 is initialized (processing 412). Then, this call input is not registered in the main station as erroneous data (process
500).

When the carry (≠ 0) or call input is not read in the above process (402), or when the counter value 1 does not exceed the predetermined number in process (404), that is, the call input is made within 1T cycle. When the number of calls does not occur frequently, the counter 2 that counts the number of readings of the call input data is incremented (process 40).
6). Then, it is determined whether the counter value 2 is equal to the total number of call input data (call input from each floor) (process 407),
If all the call input data have not been read, the processes (401) to (407) are executed again. Call input did not occur abnormally frequently and all call input data was read (processing
407), counter 2 and counter 1 are initialized (processing 408, 41
3,600) and register the read call input data in the main station. Next, the call data is input again from the transmission line in the T _{1 + n} cycle (process 300).

〔The invention's effect〕

As described above, according to the present invention, when a number of call registration signals, which are determined to be false call registration signals or more, are frequently generated within a certain period of time, the number of frequent occurrences is counted and the number of times of the certain number or more is counted. If so, the above predetermined number is increased to raise the judgment level of the miscall registration signal, so that the frequent occurrence of the call registration signals is registered as a normal call input without being uniquely regarded as the miscall discussion signal. Therefore, there is an effect that the transmission reliability of the call registration signal can be further increased without giving discomfort to passengers.

[Brief description of drawings]

FIG. 1 is a block diagram of a control microcomputer (1a) in an elevator signal transmission apparatus according to an embodiment of the present invention, FIG. 2 is a flow chart for explaining the operation of the control microcomputer, and FIG. FIG. 4 is a diagram showing a signal transmission system, FIG. 4 is a configuration diagram of a control microcomputer in a conventional elevator signal transmission device, and FIG. 5 is a transmission timing of call data transmitted between the control microcomputer and each remote station. 6A to 6D are diagrams showing normal call data (a) and (b) and false call data (c) and (d), and FIG. 7 is call data in the main station. FIG. 8 is a flowchart showing a registration process, and FIG. 8 is a flowchart showing a call data number counter process in a conventional elevator signal transmission device. It is over door. In the figure, (1a) is a control microcomputer,
(2a) to (2n) and (3) are remote stations,
(8) is a transmission line, (9) is a main station, (10)
Is a determination circuit, (11) is a counter, and (12) is a predetermined number setting circuit. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A signal transmission line is provided between a main station for signal transmission provided on a main control panel of an elevator and a remote station for signal transmission provided on an operation panel on each floor and an operation panel inside a car. Along with the distribution, set the number of frequent call registration signals within a certain period of time, which serves as a guideline for miscall registration, to the above-mentioned main station, and determine that the call registration signal has been transmitted more than the set number of frequent calls within a certain period of time. And a counter for counting the number of times of judgment, and a number of times judgment circuit for increasing the number of times of frequent occurrence setting value and raising the false call registration signal judgment level when the number of times the number of times of judgment is equal to or more than a certain value. An elevator signal transmission device characterized by the above.