JP3045790B2 - Elevator signal transmission equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an elevator signal transmission device, and more particularly to an abnormality detection for a landing station or a car remote station.

[0002]

2. Description of the Related Art The structure of a conventional example will be described with reference to FIGS. 8, 9 and 10. FIG. FIGS. 8, 9 and 10 are block diagrams showing a conventional signal transmission device for an elevator, a transmission processing system of a main station thereof, and a remote station thereof disclosed in, for example, JP-A-61-194943.

[0003] In FIG. 8, a conventional signal transmission device for an elevator comprises a main station (1), a remote control system connected to the main station (1) by a bus-type transmission line (4), and provided at a landing on each floor. Stations (5a), (5
b), (5c), (5d),..., (5n) connected to these remote stations (5a) to (5n), and a hall call button (6a), (6b) for inputting a hall call signal. ), (6c), (6d),
, (6n), the hall call registration lights (7a), (7) connected to the remote stations (5a) to (5n) and lit by the hall call registration completion signal output from the remote station.
b), (7c), (7d),..., (7n), a remote station (8) connected to the transmission line (4), and a car call signal connected to the remote station (8) Call button (9) for inputting
A car call registration lamp (10) connected to (8) and lit by a car call registration completion signal. The main station (1) includes an elevator control device (2) and a transmission processing system (3).

In FIG. 9, a transmission processing system (3) of a conventional elevator signal transmission device includes a transmission processing CPU (11) of a one-chip microcomputer and a transmission processing CPU (1).
ROM (13), RAM (1) connected to data bus (12)
4) A 2-port RAM (15), an input port (16) and an output port (17), and a serial interface (18) connected to the transmission processing CPU (11) by a data bus (12). I have. The driver (19) connects the serial interface (18) and the transmission line (4), the receiver (20) connects the transmission line (4) and the serial interface (18), and the two-port RAM (15) In the elevator control device (2)
Is connected.

In FIG. 10, a remote station (5a) of a conventional elevator signal transmission device includes a transmission processing CPU (21) of a one-chip microcomputer and a transmission processing C (C).
ROM (23) connected to PU (21) by data bus (22), R
It comprises an AM (24), an input port (25) and an output port (26), and a serial interface (27) connected to a transmission processing CPU (21) by a data bus (22). The driver (28) connects the serial interface (27) to the transmission line.
(4) is connected, the transmission line (4) is connected to the serial interface (27) by the receiver (29), and the input port (2
5) and an output port (26) are connected to a landing equipment (30) including a landing call button, a landing call registration light, and the like. The same applies to the configurations of the other remote stations (5b) to (5n).

Next, the operation of the above-described conventional example will be described with reference to FIG. 11 (a), (b), (c),
(d), (e), (f), (g), (h), and (i) are timing charts showing transmission data of a conventional elevator signal transmission device.

In FIGS. 11 (a) to 11 (i), the transmission data of a hall call is composed of 8 bits per data (11 bits including a start bit, a parity bit and a stop bit). For simplicity of explanation, a case where the main station (1) is one station and the remote stations are eight stations (first floor to eighth floor) is shown, and transmission is 1: N.
(N = 8). Note that 0 bit is for the first floor, 1
The bit is for the second floor, the two bits are for the third floor, the three bits are for the fourth floor, the four bits are for the five floors, the five bits are for the six floors, and the six bits are for the seven floors. The 7 bits correspond to the call on the 8th floor, and the signal level is low when a hall call occurs and high when there is no hall call.

Conventionally, in order to eliminate a transmission line necessary for exchanging signals with landing equipment (30) on each floor of an elevator, a main station (1) and a remote station are connected between a machine room of the elevator and each floor. Stations (5a) to (5n)
Install serial transmission means to perform serial transmission via
The number of (4) has been greatly reduced.

The operation of hall call registration will be described below with reference to FIG. For example, when a hall call occurs in the remote station (5a), the signal level of the 0 bit becomes low level and the other 1 to 7 bits become high level.

In FIG. 11, (a) to (h) are call data indicating a landing call generation state of each of the remote stations (5a) to (5h), and the remote stations (5a), (5b),
(5d), (5e), (5g) and (5h) are in a state where there is no hall call. On the other hand, the remote stations (5c) and (5f) are in a state where there is a hall call.

The remote stations (5a) to (5h) simultaneously output the hall call data shown in FIGS. 11 (a) to (h) to the transmission line (4) at time T1. On the other hand, the main station (1) is a wired OR of the hall call data simultaneously output by the remote stations (5a) to (5h) in FIG.
The hall call data shown in (i) is registered as a hall call.

In this example, the landing call data actually output simultaneously to the transmission line (4) is the remote station (5).
c) and (5f) only. In other words, the remote station without a hall call outputs no signal (no output on the transmission line (4)), and only the remote station with a hall call outputs hall call data on the transmission line (4) at the same time. is there.

[0013]

In the conventional signal transmission device for an elevator as described above, the number of transmission lines (4) can be greatly reduced. ) Is a method of taking the wired OR of the hall call data to be output, and the remote station without the hall call is an event system that does not output any hall call data to the transmission line (4).
If the platform becomes unavailable due to the failure of the remote station, it is not possible to detect which remote station has failed, so it is not possible to take appropriate measures for the failed remote station. There was a point. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator signal transmission device capable of detecting which remote station has failed when a landing station or a car remote station has failed. With the goal.

[0014]

An elevator signal transmission device according to the present invention comprises a main station and a remote station.
Elevator that serially transmits data to and from stations
The signal transmission device of
Has received a command to perform transmission diagnostics.
Determining means for disconnecting, and the determining means performs transmission diagnosis
The diagnostic signal data is extracted when
Diagnostic signal generating means to be transmitted, and the transmitted diagnostic signal
No. data returned from the remote station
The returned data is the same as the diagnostic signal data and the predetermined number of times.
Abnormality detection means for determining an abnormality when the
It is. In addition, the signal transmission of the elevator according to the present invention.
Transmitting device, the diagnostic signal data, one or more
For each of the remote stations,
Diagnostic signal generating means for communicating with the remote station;
The diagnostic signal data is sequentially extracted in response to the
The stage determines abnormalities in the return data for each diagnostic signal data.
Things. Further, in the elevator according to the present invention,
The signal transmission device receives the signal from the remote station.
Diagnostic signal data for each remote station
The received diagnostic signal data only when the
The main station
Abnormality detection means, the reply data was transmitted earlier
If there is no data that matches the diagnostic signal data, it is judged as abnormal
Things.

[0015]

According to the present invention , transmission is performed by the determination means.
Whether to diagnose transmission depending on the presence or absence of a diagnostic execution command
It is determined whether or not. In addition, by the diagnostic signal generating means,
A diagnostic signal when the determination means performs transmission diagnostics;
The data is extracted, and the extracted
The disconnection signal data is transmitted a predetermined number of times. And abnormal
The detecting means responds to the transmitted diagnostic signal data.
Reply data returned from the remote station
Data is confirmed, and the reply data is
If the predetermined number of times is not the same, it is determined that there is an abnormality .

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing an embodiment of the present invention, which is exactly the same as that of the above-described conventional apparatus except for the transmission processing system (3A). However, the transmission processing system (3A) has the same hardware configuration as that of the conventional transmission processing system (3) and has different software functions.

In FIG. 1, the function of a transmission processing system (3A) according to one embodiment of the present invention is an elevator control device (2).
The determination means (40) for selecting one of the button light signal generation means (31) and the diagnostic signal generation means (60) based on the output signal S2 of the above, and the button light signal S3 output to the transmission means (32)
Button light signal generating means (31) for generating
2) and a diagnostic signal generating means (60) for generating a diagnostic signal S60 to be output to the abnormality detecting means (70), and a button light signal generating means
(31) and the button light signal S31 and the diagnostic signal S60 of the diagnostic signal generating means (60) are transmitted to the remote station (5a) at the landing.
To (5n) to the transmission means (32), and return signals from the remote stations (5a) to (5n) at the landing are detected by the abnormality detection means (7
0), a diagnostic signal S60 of the diagnostic signal generating means (60), an output signal S33 of the receiving means (33), and an output signal S80 of the counting means (80). Abnormality detecting means (70) for detecting abnormalities of the stations (5a) to (5n) and the number of occurrences of the diagnostic signal S60 output from the diagnostic signal generating means (60) are counted, and the counted value is used as a diagnostic signal generating means
(60) and counting means (80) for outputting to the abnormality detecting means (70).

Next, the operation of the above-described embodiment will be described with reference to FIGS. 2 to 6 show a determination means (40) and a diagnostic signal generation means according to an embodiment of the present invention.
(60), a flowchart showing the operation of the landing remote stations (5a) to (5n), the abnormality detecting means (70) and the counting means (80), and FIG. 7 is a timing chart showing the operation of one embodiment of the present invention. FIG. The programs of the judgment means (40), the diagnostic signal generation means (60), the abnormality detection means (70) and the counting means (80) are stored in the ROM (13) shown in FIG. ) To (5n) are shown in Fig. 1.
0 is stored in the ROM (23).

In step (41) of FIG. 2, the input signal S2 from the elevator control device (2) selects one of the button light signal generating means (31) and the diagnostic signal generating means (60). Is determined. That is, if abnormality detection of the remote station at the landing is started (YES), the process proceeds to step (42), and if abnormality detection is not started (NO), the process proceeds to step (43). In step (42), the operation shifts to the diagnostic signal generating means (60) to perform predetermined processing. Steps
In (43), the operation shifts to the button light signal generating means (31) to perform predetermined processing.

In this embodiment , for the sake of simplicity, the case of three remote stations (5a), (5b) and (5c) is shown in the timing chart of FIG . In addition, A1, A
2 and A3 are remote stations (5a), (5b) and (5c)
Is assigned to In this embodiment, it is easy to understand.
For example, if the landing address is a diagnostic signal generating means
The same data as the diagnostic signal S60 output from (60)
You .

In step (61) of FIG. 3, the landing address is initialized. That is, the first landing address A1 is set as the landing address. In step (62), the landing address is set in the transmitting means (32). In step (63), the landing address set in the transmitting means (32) is output to the transmission line (4). Output to the transmission line (4) is performed by the transmission means (32). In step (64), it is determined whether or not the output signal Kt of the counting means (80) is equal to or more than a predetermined number. If the number is more than the predetermined number (YES), check the landing address
Predetermined communication for one diagnostic signal data is completed
The process proceeds to the next step (65), and if not more than the predetermined number (NO), the diagnostic signal data is reduced to the predetermined number of times.
The process returns to step (62) to output until reaching . Steps
At (65), it is determined whether or not the landing address output to the transmission line (4) is the final address A3. For landing address when the last address A3 (YES)
When a series of diagnosis is completed, and the address is not the final address A3 (NO), the process proceeds to the next step (66). In step (66), the landing address is updated, and step (6)
Return to 2).

The transmitting means (32) includes a button light signal generating means (3
1) and the button light signal S31 or the diagnostic signal S60, which are parallel transmission data output from the diagnostic signal generating means (60).
To convert the data into serial transmission data and output it to the remote stations (5a) to (5n) at the landing.

At this time , the remote stations (5a) to (5n)
Programs of the determination means (40) Thus the diagnostic signal generator
Is selected, and the diagnostic signal generation means (60) selects the diagnostic signal
This is executed when the data of the landing address is transmitted . Figure 4 shows the response of the remote station at this time .
First, in step (51), the signal data sent from the transmission line (4) is input. In step (52), it is determined whether or not the input signal data matches the landing address data assigned to the own station. If it matches the address data of the own station (Y
The ES) proceeds to the next step (53), the address of the own station de
If the data does not match (NO), the process ends. In steps (53) to (54), the address data assigned to the own station is set in the transmission register, the data is sent out to the transmission line (4), and returned to the transmission processing system (3A). When
I do . In other words, it indicates the specified address data of the own station.
Only when a signal is sent,
This is the response data.

The receiving means (33) is provided with return data (serial transmission data) from the remote stations (5a) to (5n) at the landing.
To convert it into parallel transmission data, and to detect abnormality (70)
As a signal S33.

FIG. 5 is a flowchart showing the operation of the abnormality detecting means .
FIG. 9 is a timing chart of the embodiment of FIG.
This will be described in connection with a chart (however, a predetermined number = 1).
In step (71), first, the determination result of the determination means (40)
Signal or diagnostic signal generating means (60) is selected by
The determination is made in S40 . If it has been selected (YES), the process proceeds to the next step (72), and if it has not been selected (N
In step O), go to step (78). In steps (72) to (73), the signal S33, which is the return data returned to the receiving means (33) , and the return data from the diagnostic signal generating means (60) .
Comparing the diagnostic signals S60 sent for confirmation, signal data of
Over data it is determined whether or not the agreement or disagreement. In step (74), it is determined whether the output signal Kt of the counting means (80) is equal to or more than a predetermined number. For more than a predetermined number (YES) to remotely
It is considered that there has been a reply from the station, and the process proceeds to the next step (75) for confirmation. If the number does not reach the predetermined number (N
The O) proceed to step (72), abnormalities until a predetermined number
Wait for detection judgment . In step (75), the abnormality detection judgment
And a predetermined number of data returned in step (73)
The determination result based on to determine whether all data is in disagreement. In other words, send the existing landing address
Of the reply data corresponding to the sent address
If normal, at least one of the remote stations
Since they are transmitted in agreement with each other, if the predetermined number of times does not match (YES), it is abnormal and the process proceeds to the next step (76), and if they do not match (NO), the process proceeds to step (77). In step (76), the diagnosis signal generating means (60) when the mismatch occurs determines that the hall remote station corresponding to the hall address specified is abnormal, and
An error notification is made in (2) and the process ends. In step (77), the landing address designated by the diagnostic signal generation means (60)
The landing remote station corresponding to
A normal notification is sent to the elevator control device (2), and the process is terminated. In step (78), the diagnostic signal is not issued
When there is no, normal button processing, ie step
This is executed when the button light signal generation means (31) is selected in (71).

The elevator control device (2) which has received the abnormality report in step (76) promptly responds to abnormalities such as a service floor cut at the floor where the abnormality has occurred, and an abnormality report to the management panel of the management room. .

In step (81) of FIG.
Initialize to a value of zero . In step (82), it is determined whether the diagnostic signal generation means (60) has generated a diagnostic signal S60. If it has occurred (YES), proceed to the next step (83); if not (NO), wait until it has occurred. In step (83), the signal Kt is incremented. Oite to step (84), it determines whether the signal Kt is greater than a predetermined number. If large (YE
In S), the process proceeds to the next step (85).
In step O), the process returns to step (82). In step (85),
Initialize the signal Kt and return to step (82).

As an actual transmission procedure, the data input / output timing between the transmission processing system (3A) of the main station (1) and the remote stations (5a), (5b) and (5c) at each landing is shown in FIG. This will be described with reference to FIG. FIG.
Corresponds to the case where the operation of the program from FIG. 2 to FIG. 6 is viewed on the time axis.

At time T1, the transmission processing system (3A)
Outputs landing address data A1 to the transmission line (4). The remote stations (5a) to (5c) at each landing input the landing address data A1. Then, determine whether the address is assigned to the own station,
If the address is assigned to the own station, the time T
2, the same data as the input address data A1, that is, the address data A1 is output to the transmission line (4). In short, the remote station (5a) at the landing where the address data A1 has been input is the address assigned to itself, and outputs the same address data A1 as the input data to the transmission line (4).

On the other hand, the transmission processing system (3A)
, The remote station (5a) at the landing
The data A1 output to (4) is input, and the transmission line is transmitted at time T1.
The address data A1 of the remote station (5a) at the landing that was output to (4) is compared with a predetermined number of times (in FIG. 7,
After repeating the predetermined number = 1), the remote station (5a) at the landing is determined to be normal if they match even once, and it is determined to be abnormal if they do not all match. By performing such processing up to the address A3, the abnormality detection processing of each remote station is completed.

According to one embodiment of the present invention, as described above,
The addresses assigned to the remote stations at each landing are sequentially designated by the main station, and only the remote station at the designated landing returns data unique to the remote station to the main station. The main station checks the specific data sent from the remote station to detect an abnormality in the landing, so that it is possible to detect which landing of the remote station has failed. This has the effect of promptly coping with abnormalities such as service floor cuts and abnormality reports.

In the above-described embodiment, the case of detecting an abnormality in the remote station at the landing is explained. However, the same operation can be expected even in the case of a car remote station. In the above-described embodiment, the timing for performing the abnormality detection is not particularly described. However, it is possible to achieve the intended purpose even when the abnormality detection is performed, for example, during idle times such as when the door is closed. Not even.

[0033]

As described above, the present invention relates to an elevator signal transmission apparatus for serially transmitting data between a main station and a remote station.
Command for the main station to perform a transmission diagnosis
Determining means for determining whether or not the determination has been made;
The diagnostic signal data is extracted when the stage performs transmission diagnosis.
Diagnostic signal generating means for causing the transmitting means to transmit a predetermined number of times
And the remote control for the transmitted diagnostic signal data.
The reply data returned from the
If the number of data is not the same as the specified number, it is judged as abnormal
Since the abnormality detecting means is provided, it is possible to detect which of the plurality of remote stations has failed. Also this
As described above, the present invention provides the diagnostic signal data,
For each of one or more remote stations
Wherein the diagnostic signal generating means includes
Diagnostic signal data is sequentially extracted according to the
Then, the abnormality detecting means returns a reply data for each diagnostic signal data.
Data from multiple remote stations.
Out which remote station failed.
It has the effect that it can be issued. Furthermore, this
As described above, the present invention relates to the remote station.
The received diagnostic signal data is transmitted to the remote station.
Received only when it matches the specified data for each
The diagnostic signal data is transmitted as reply data,
The abnormality detection means of the station detects the reply data first.
When there is no data that matches the transmitted diagnostic signal data
Since multiple remote stations are
To detect which remote station has failed
It has the effect of being able to do so.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of a determination means (40) according to one embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the diagnostic signal generating means (60) according to one embodiment of the present invention.

FIG. 4 is a flowchart showing an operation of the remote station at the landing according to the embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the abnormality detecting means (70) according to one embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the counting means (80) according to one embodiment of the present invention.

FIG. 7 is a timing chart showing the operation of one embodiment of the present invention.

FIG. 8 is a block diagram showing a conventional signal transmission device for an elevator.

FIG. 9 is a block diagram showing a conventional transmission processing system (3) of an elevator signal transmission device.

FIG. 10 is a block diagram showing a remote station (5a) of a signal transmission device for a conventional elevator.

FIG. 11 is a timing chart illustrating the operation of a conventional elevator signal transmission device.

[Explanation of symbols]

 (1) Main station (2) Elevator control device (3A) Transmission processing system (4) Transmission line (5a) to (5n) Remote station (40) Judgment means (60) Diagnostic signal generation means (70) Abnormality detection means ( 80) Counting means In each drawing, the same reference numerals indicate the same or corresponding parts.

Claims (3)

(57) [Claims] In elevators of the signal transmission device for serial transmission of data between 1. A main station and a remote station, the main station, to determine whether receiving a command for performing the diagnostic of the transmission
Determining means for performing a transmission diagnosis by the determining means;
A diagnostic signal that extracts data and causes the transmitting means to transmit it a predetermined number of times
Generating means; and a remote controller for the transmitted diagnostic signal data.
The response data returned from the
Data that is not the same as the specified number of times
A signal transmission device for an elevator, comprising: a detection unit . 2. The method according to claim 1, wherein the diagnostic signal data is one or more.
Corresponding to each of a number of remote stations.
The diagnostic signal generating means is connected to the remote station.
The diagnostic signal data is sequentially extracted in accordance with the data, and the abnormality detecting means outputs the return data for each diagnostic signal data.
2. The device according to claim 1 , wherein the abnormality of the vehicle is determined.
Beta signal transmission equipment. 3. The remote station receives
The diagnostic signal data is a predetermined
Only when the data matches the received diagnostic signal data
Is transmitted as reply data, and the abnormality detecting means of the main station transmits the reply data.
Data that matches the diagnostic signal data previously transmitted by the
Claim 1 or Claim 2, characterized in that when there is no
Is an elevator signal transmission device according to 2.