JPH0317754B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a signaling device for an elevator, and is particularly effective for signal transmission between each landing and a machine room.

[Conventional technology and problems]

As buildings become taller and the number of floors serviced by elevators increases, the number of in-tower wiring that connects each landing device (car position display device, landing call registration device, etc.) and the elevator control device in the machine room increases. In order to significantly reduce this number, for example, as disclosed in Japanese Patent Application Laid-Open No. 177874/1983, a landing control device equipped with a microcomputer is installed at each landing, and an elevator control device in the machine room and a landing control device on any floor are installed. A system has been proposed in which signals are exchanged with the hall via a hall control device located between the two. This method will be explained with reference to FIG.

Figure 6 is a diagram showing the overall configuration when applied to an 8-story building. The hall control devices installed on each floor, C1 to C8 are cables that connect each hall control device or the hall control device and the elevator control device, and A1 to A8 are the hall push buttons for the 1st to 8th floors, respectively (not shown). The call signals B1 to B8 are output signals to the hall devices (not shown) on the 1st to 8th floors, respectively. Note that some intermediate floors are omitted from the illustration.

Although a detailed explanation of the above configuration will be omitted,
First, the elevator control device transmits and receives signals between the hall control device H8 on the 8th floor and the elevator control device COP.
The selection signal for the 8th floor sent from the COP is "1"
The signal A8 from the 8th floor landing push button is taken into the elevator system and the call for the 8th floor is registered, and the 8th floor landing device is activated by the signal B8. The car position and driving direction are displayed, and the call response light is turned on. Next, signals are exchanged between the hall control device H7 on the 7th floor and the elevator control device COP using the cable C7 and the hall control device H while the selection signal on the 7th floor is "1".
8, via cable C8. Similarly, signals are exchanged between the hall control device on any floor and the elevator control device in sequence through the hall control devices in between, and when the signal transmission and reception up to the first floor is completed, the above operation starts again from the 8th floor. is repeated.
Therefore, according to this method, there is no need to directly connect hall devices such as car position display devices and call registration devices to elevator control devices, the number of signal lines is kept to a minimum regardless of the number of floors, and in-tower wiring is eliminated. The number can be significantly reduced.

However, in the above method, if one hall control device malfunctions or a signal line is broken at one location, all other hall control devices will be unable to exchange signals with the elevator control device, for example, the hall control device on the top floor If the system malfunctions, for example, call registration for all landings from the top floor to the bottom floor, answering lights turned on,
It becomes impossible to display the car position, resulting in a significant drop in service.

[Means for solving problems]

A feature of the present invention is that the signal transmission and reception between the elevator control device in the machine room and the landing control device on each floor can be performed together with various information such as normal floor display, call presence, answering light, arrival light, etc. By including information for monitoring transfers, the failure floor can be identified.

That is, when the hall control device of each floor receives a specific signal pattern from the elevator control device of the machine room, or during a predetermined time-divided time width, a predetermined signal is sent from the hall control device of each floor. A means for transmitting a pattern to the elevator control device, a means for monitoring transmission and reception of the signal pattern by the elevator control device, and a means for allocating a call to that floor after a certain period of time when a failure of the hall control device is detected. The present invention is characterized in that by repeating the transmission and reception of the signal pattern and its monitoring, a call can be assigned to a floor where the hall control device has failed at regular intervals.

〔Example〕

Hereinafter, an embodiment in which the present invention is applied to an eight-story building will be described based on the drawings.

FIG. 1 shows the internal block diagrams of the hall control device H1 on the first floor and the hall control device H8 on the eighth floor. Although the intermediate floors are not shown, the hall control devices on the intermediate floors are The content is exactly the same. In the figure, 6 is a microcomputer, 7 and 8 are receiver circuits, 9, 10 and 11 are driver circuits, SE08 is a selection signal from the elevator control device COP for selecting the hall control device H8 on the 8th floor, and DTO is the elevator Signal from control device COP to each hall control device, DTi is signal from each hall control device to elevator control device COP, DTi8 is 8
Signal from microcomputer 6 in floor hall control device H8 to driver circuit 9 in H8, SE8
7 is 8 for selecting the hall control device H7 on the 7th floor.
Similarly, the selection signal from the floor landing control device H8
SE21 is a selection signal from the second floor hall control device H2 for selecting the first floor hall control device H1;
DTi1 is a signal sent from the microcomputer 6 in the hall control device H1 on the first floor to the driver circuit 9 in H1.

In the above configuration, the operation will be explained next. FIG. 2 is a time chart showing how signals are normally sent and received. Elevator control device COP
sends common data (e.g. car position, etc.) to all floors.
After outputting to the DTO, the hall control device H8 on the 8th floor
In order to select the
Then, command signals such as driving directions and response lights for the 8th floor are output to the DTO.

The microcomputer 6 of the hall control device H8 on the 8th floor receives the selection signal via the receiver circuits 7 and 8.
When it receives SE08 and the command signal device DTO and recognizes that it has been selected by the selection signal, it sends the command signal DTO to the signal B8 via the driver circuit 11.
Convert it to output and operate the hall display device on the 8th floor. At the same time, the presence or absence of a hall call in the ascending direction or descending direction obtained by the call signal A8 is transmitted as a signal DTi to the elevator control device COP via the driver circuit 9.

Then, after counting a predetermined time or reference clock, the elevator control device COP
The signal transmission and reception between the hall control device H8 on the 8th floor and the hall control device H8 on the 8th floor has been completed, and the signal transmission and reception will now be performed between the hall control device H7 on the 7th floor and the elevator control device COP. That is, the hall control device H8 outputs the seventh floor selection signal SE87 as "L" via the driver circuit 10.

Similarly, the landing control device on the 6th floor is connected to the elevator control device by the selection signal from the landing control device on the 7th floor, and the landing control device on the i floor is connected to the elevator control device in response to the selection signal from the i+1 floor. Sends and receives signals. When the process is performed sequentially up to the first floor in this way, the process returns to the common data part again, and this process is repeated thereafter.

Next, the time chart in FIG. 3 shows how the elevator control device COP monitors the transmission and reception of signals. FIGS. 4 and 5 are diagrams showing the flow of a program for monitoring signal exchange between each hall control device and elevator control device, respectively.

When monitoring the transmission and reception of signals, first of all, the elevator control device COP transmits the following data as common data.
A predetermined maintenance code is output to the DTO, and the signal SE08 is set to "L" in order to select the hall control device H8 on the 8th floor (steps 30 to 32).
On the other hand, when the hall control device H8 receives the maintenance code and recognizes that the selection signal SE08 is "L" (steps 21 and 22), it sends "L" and "H" signals to the normal data traffic location. Output (steps 23 to 25). And when the signal exchange is finished,
Output "L" to the selection signal output, that is, SE87
is set to "L" (steps 26 and 27), and signals are exchanged with the hall control device on the 7th floor. thus,
Each hall control device sequentially outputs "L" and "H" signals, and DTi becomes as shown in FIG.

If one of the hall control devices breaks down or the cable is broken, this output signal will be disrupted and the repeating signal of "L" and "H" will not be output to the DTi normally. . The elevator control device COP monitors this DTi and counts the time or reference clock after setting SE08 to "L" to determine which floor's signal exchange with the hall control device is abnormal. and set the timer for the abnormal floor (step 33).
~41). The elevator control device then ignores signals sent from that floor, counts the time that the signal is no longer normal, and assigns a call to this floor after a certain period of time (steps 42 to 42).
48). By repeating the above steps,
Calls are assigned to the faulty floor at regular intervals, which prevents service from deteriorating.

〔Effect of the invention〕

As described above, according to the present invention, not only can the number of wiring within the tower be significantly reduced, but also signals can be sent and received normally regardless of the location of the failure, and it is extremely reliable. can provide high elevator signaling equipment. In addition, since everything else operates normally except for the faulty part, the faulty part can be easily identified, which is very effective in quickly repairing the fault.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the inside of the hall control device of the present invention, FIG. 2 is a time chart showing how normal signals are exchanged, and FIG. 3 is a time chart showing how signals are monitored. Figure 4 shows the flow of a program that monitors the exchange of signals in the hall control device, Figure 5 shows the flow of the program that monitors the exchange of signals in the elevator control device, and Figure 6 shows the overall conventional configuration. FIG. COP...Elevator control device, H1~H8...1
Hall control equipment for floors to floors 8, C1 to C8...cable, 6...microcomputer, 7,8...receiver circuit, 9,10,11...driver circuit, SE0
8, SE87, SE21...Selection signal.

Claims (1)

[Claims] 1. Each landing on each floor is provided with a landing control device that controls the car position display device and the landing call registration device on that floor using a microcomputer, and each of these landing control devices is connected to an elevator in a machine room. The configuration is such that the controllers are sequentially connected in series via signal lines, and each of the hall control devices sequentially controls the elevator via the hall control devices connected therebetween when the selection signal for its own floor is significant. In an elevator signaling device configured to exchange signals with the device, when the hall control device of each floor receives a specific signal pattern from the elevator control device,
Alternatively, means for transmitting a predetermined signal pattern from the hall control device of each floor to the elevator control device during predetermined time-divided time widths, and monitoring the transmission and reception of the signal pattern by the elevator control device. and means for allocating a call to the floor after a certain period of time when a failure of the hall control device is detected, and by repeating the sending and receiving of the signal pattern and its monitoring, the system assigns a call to the floor where the hall control device has failed at a certain time interval. An elevator signaling device characterized in that it is configured to be able to allocate calls to.