JPH0312776Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This 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]

As buildings become taller and the number of floors serviced by elevators increases, a tower connects the vast number of hall devices (car position display devices, hall call registration devices, etc.) and the elevator control device in the machine room. In order to significantly reduce the number of internal wiring, for example,
As in No. 177874, each landing is equipped with a hall control device equipped with a microcomputer, and signals are exchanged between the elevator control device in the machine room and the hall control device on any floor via the hall control device located between them. is proposed. This method will be explained with reference to FIG.

Figure 1 is a diagram showing the overall configuration when applied to an 8-story building. Hall control devices installed on each floor, C1 to C8 are cables that connect each hall control device or the hall control device and elevator control device, A1 to A8 are hall push buttons installed on 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 control device to register the call for the 8th floor, and the signal B8 activates the 8th floor landing equipment. The car position and driving direction are displayed, the call response light is turned on, etc. Next, signals are exchanged between the seventh floor hall control device H7 and the elevator control device COP via the cable C7, the hall control device H8, and the cable C8 while the seventh floor selection signal is "1". 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 exchange up to the first floor is completed, the above operation starts again from the eighth floor. is repeated. Therefore, according to this method, there is no need to directly connect the elevator control device to the hall equipment such as the car position display device and the call boarding device, and the number of signal lines is kept to a minimum regardless of the number of floors. The number of wiring lines can be significantly reduced.

[Problems that ideas should solve]

However, in the above method, if one hall control device malfunctions or a signal line breaks in one place, all other hall control devices beyond that point will be unable to exchange signals with the elevator control device. If the equipment malfunctions, it will become impossible to register calls, turn on response lights, and display car positions at all landings from the top floor to the bottom floor, resulting in a significant drop in service.

This application was made in view of the above points, and by adding one signal line and monitoring the selection signal, it is possible to detect failures in the hall control equipment or disconnection of the signal line, etc. The purpose is to prevent extreme deterioration of service.

[Means to solve the problem]

The feature of this application is that, as mentioned above, the elevator control device sequentially makes the selection signal to the landing control device of each floor significant, and when each landing control device makes the selection signal for its own floor significant, the connection is made between them. In an elevator signaling device that transmits and receives signals to and from the elevator control device through the hall control device, the signal line for outputting the selection signal of the hall control device located at the last end of each hall control device is connected mechanically. One cycle includes connecting to the elevator control device of the room and outputting the selection signal from the elevator control device, passing through each of the hall control devices, and outputting it from the final hall control device to the elevator control device. and means for counting the time corresponding to one cycle, means for monitoring the selection signal for each cycle, and means for automatically registering a call for a predetermined floor when an abnormality in the selection signal is detected. It's about being prepared.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figure 2 is a diagram showing the overall configuration when the present invention is applied to an 8-story building, similar to Figure 1. In the figure, C9 is the hall control device H1 on the first floor and the elevator control device COP. This is the cable that connects the Other parts that are the same as those in FIG. 1 are designated by the same reference numerals.

FIG. 3 shows a block diagram of the 1st floor landing control device H1 and the 8th floor landing control device H8.
The contents of the intermediate floor landing control device are exactly the same. In the figure, 6 is a microcomputer, 7 and 9 are receiver circuits, 8, 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, SE87 is 7 A selection signal from the hall control device H8 on the 8th floor for selecting the hall control device H7 on the floor. DT08 is a signal from the elevator control device COP to the hall control device H8 on the 8th floor. DT80 is a signal from the hall control device H8 on the 8th floor. DT87 is the signal from the hall control device H8 on the 8th floor to the hall control device H7 on the 7th floor, DT78 is the signal from the hall control device H7 on the 7th floor to the hall control device H8 on the 8th floor. signal, SE21 is a selection signal from the hall control device H2 on the second floor for selecting the hall control device H1 on the first floor, DT12 is a signal from the hall control device H1 on the first floor to the hall control device H2 on the second floor, DT21 is a signal sent from the hall control device T2 on the second floor to the hall control device H1 on the first floor, and SE10 is a selection signal output from the hall control device H1 on the first floor to the elevator control device COP.

Next, the operation will be explained.

The elevator control device COP sets the signal SE08 to "1" for a predetermined time in order to select the hall control device H8 on the 8th floor, and outputs command signals for the car position, driving direction response light, etc. for the 8th floor to DT08. The microcomputer 6 of the hall control device H8 on the 8th floor receives the selection signal SE08 and the command signal DT08 via the receiver circuit 7, and when it recognizes that it has been selected by the selection signal, it sends the command signal DT08 via the driver circuit 11. It is converted into signal B8 and output, which activates the hall display device on the 8th floor. At the same time, the presence or absence of a hall call in the ascending or descending direction obtained by the call signal A8 is transmitted as a signal DT80 to the elevator control device COP via the driver circuit 8. Then, when the selection signal SE08 becomes "0" and the signal exchange between the elevator control device COP and the hall control device H8 on the 8th floor is completed, the signal exchange is started between the hall control device H7 on the 7th floor and the elevator control device COP. It will be done.

That is, the hall control device H8 sets the seventh floor selection signal SE87 to "1" and outputs it via the driver circuit 10, and also outputs the selection signal SE87 for the car position, driving direction,
The contents of the command signal DT08 representing the response light are sent as is as DT87 to the hall control device H7 on the 7th floor, and a signal DT7 representing the presence or absence of a hall call on the 7th floor is sent as is.
The contents of 8 are sent as DT80 to the elevator control device COP, and the selection signal SE87 is set to "1".
During this period, signals are exchanged between the hall control device H7 on the seventh floor and the elevator control device COP via the hall control device H8 on the eighth floor.

Similarly, the landing control device on the 6th floor is changed to the 7th floor,
The hall control system on the i floor exchanges signals with the elevator control system through the hall control system on the i+1 floor, such as through the hall control system on the 8th floor.
When the operations are performed sequentially up to the first floor, the hall control device H1 on the first floor outputs the signal SE10 to the elevator control device COP as "1", and the above operations are repeated as one cycle.

On the other hand, the elevator control device COP counts the time T corresponding to one cycle above, and if the signal is being exchanged normally, the above 1 cycle is counted.
The signal SE10 changes from "0" to "1" every cycle, but if any of the hall control devices on the 1st to 8th floors fails or a cable is disconnected, the signal SE10 changes from 1 to 1 above. “0” in the middle of the cycle
Detects whether the value changes from 1 to 1, or remains unchanged at 0 after one cycle, and detects this.
After deeming it to be an abnormality, the elevator control device continues the elevator service by stopping operation at each floor and automatically registering the call for a predetermined floor, regardless of whether there is a call or not.

FIG. 4 is a diagram showing a flowchart when the above failure detection is performed using a microcomputer or the like.

Here, the time T for one cycle is set by the monitoring timer, and if the signal SE10 is "1" (step ST1) when the monitoring timer ≠ 0 (in the middle of one cycle), or when the monitoring timer = 0 (1
If the signal SE10 is "0" (at the end of the cycle) (step ST2), it is regarded as abnormal, and an abnormality timer is set (step ST3). This flowchart is repeated and when the value of the abnormality timer becomes 0 (that is, when the abnormal state continues for a predetermined period of time)
Proceeding from step ST4 to ST5, a predetermined call is automatically registered, and the elevator continues service regardless of whether there is a call. In other cases, it is assumed that signals are being sent and received normally, and normal operation is performed.

[Effect of idea]

As described above, according to the present invention, with a very simple configuration that only adds one signal line for the selection signal and monitors the selection signal, it is possible to prevent failures in the hall control equipment on each floor, disconnection of the signal line, etc. It is possible to detect and prevent significant deterioration of elevator service.

[Brief explanation of drawings]

Fig. 1 is a diagram showing the overall configuration of the conventional system, Fig. 2 is a diagram showing the overall configuration of the present invention, Fig. 3 is a block diagram showing the inside of the hall control device, and Fig. 4 is a diagram showing the internal structure of the hall control device. It is a figure which shows the flowchart of. COP...Elevator control device, H1~H8...
... Hall control equipment for the 1st to 8th floors, C1 to C9... Cable, 6... Microcomputer, 7, 9...
...Receiver circuit, 8,10,11...Driver circuit, A1 to A8...Call signal for 1st to 8th floors, B
1 to B8...Output signals to the hall equipment on the 1st to 8th floors.

Claims (1)

[Scope of Claim for Utility Model Registration] 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 installed in the machine room. The elevator control device is connected sequentially in series via a signal line, and the elevator control device makes a selection signal to the first connected hall control device valid for a predetermined period of time, and each of the hall control devices connects to its own floor. When the selection signal becomes significant for a predetermined period of time, the selection signal to the next hall control device is outputted as significant for a predetermined period of time, thereby sequentially making the selection signal from the elevator control device to each of the hall control devices significant. By repeating this, each of the hall control devices sends and receives signals to and from the elevator control device via the hall control device connected therebetween when the selection signal for the own floor is significant. In this step, a signal line for outputting a selection signal of a hall control device located at the last end of each of the hall control devices is connected to the elevator control device, and the selection signal is output from the elevator control device to The period from the final hall control device to the elevator control device via the control device is 1.
means for counting the time corresponding to one cycle; means for monitoring the selection signal for each cycle; and means for automatically registering a call for a predetermined floor when an abnormality in the selection signal is detected. An elevator signaling device characterized by comprising: