JPH02270785A - Signal transmission control device of elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an elevator signal transmission control device that transmits and displays information such as time and weather forecast on a display provided in at least one of a car and a landing. It is related to.

[Prior Art] FIG. 4 is a block diagram showing a conventional elevator signal transmission control device known, for example, from Japanese Patent Laid-Open No. 1-167871.

In the figure, 1 is an input control device that manually outputs various display messages such as floor guidance 9 time and weather forecast to the data transmission system, and also takes in data from the data transmission system; 2 is the input control device 1; A plurality of display control devices 3, 3.
, , is a transmission control device that sends and receives data between
Each display control device 3゜3,..., displays various messages sent from the input control device 1 on a screen (not shown), and also displays messages within the display control device in response to monitor request commands from the input control device 1. The message is sent back to the human control device 1. Further, the display control device 3 is provided in at least one of the inside of the elevator car and the landing area.

Next, the operation of the transmission control device 2 will be explained with reference to the state transition diagram shown in FIG.

Various message information from the input control device 1 is transmitted to each display control device 3, 3. ．． ．． ．． ．． When displaying, first, the transmission control device 2 is initialized, and then the display message from the human control device 1 is displayed according to the data transmission processing procedure based on a predetermined protocol between the input control device 1 and the transmission control device 2. The information is transmitted to the transmission control device 2. The transmission control device 2 that received the message information transmits the transmission control device 2 and each display control device 3, 3 . ．． ．． ．． ．． The message information for display is sent to each display control device 3, 3. ．． ．． ．． ．． Sequentially sent to
Display on the display. The transmission route at this time is ■−■−■.

In addition, from the input control device 1 to each display control device 3゜3,...
If you want to monitor whether the display message information transmitted to , , has been accurately transmitted or whether the display control device 3 is displaying as instructed, the input control device 1 needs to
The monitor request output is sent to the display control device 3 that requires it through the route ①-②. The display control device 3 that has received this monitor request command transmits the content of the message it is displaying to the input control device 1 via the transmission control device 2 via the route ■-■-〇, and the accompanying monitor means ( (not shown).

[Problems to be Solved by the Invention] In the conventional signal transmission control device as described above, when monitoring the display contents of the display control device,
In order to use the transmission route of Transmission time + polling processing time between the transmission control device and display control device + data transmission time between the transmission control device and display control device It takes time equivalent to creating the monitor message content of the display control device, and response time to monitor transmission processing. There was a problem that the image became long, which affected normal display processing.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an elevator signal transmission control device that can shorten monitor transmission processing time and improve response speed.

[Means for Solving the Problems] An elevator signal transmission control device according to the present invention includes a transmission control device that transmits display message information between an input control device and each display control device, and a signal transmission control device that transmits message information to each display control device. A monitoring storage means for periodically sucking up and storing message information for display that has been displayed, and means for transmitting the monitoring message information in the storage means to the input control device when a monitor request is received from the input control device. It is something.

[Function] In the present invention, the transmission control device periodically sucks up the message information transmitted to each display control device during normal message information transmission processing and stores it in the storage means as monitor information of the display control device. Then, when the input control device issues a monitor request command to each display control device,
To immediately send back message information for monitoring from a storage means to an input control device.

Therefore, according to the present invention, the monitor transmission processing time can be shortened and the response speed can be improved.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is an overall configuration diagram showing an embodiment of an elevator signal transmission control device according to the present invention.

In this figure, the same parts as in FIG. 4 are given the same reference numerals and will be explained. The input control device 1 has a function of receiving various display messages from an input section (not shown), sending these messages to the transmission control device 4, and receiving transmission data from the transmission control device 4.

The transmission control device 4 processes data transmission between the input control devices 1 and a plurality of display control devices! ff13. 3. ,,,
.

As shown in the state transition diagram of FIG. 2, message information from the input control device 1 is transmitted to each display control device 3, 3. ．． ．． ．． ．． It has a function of transmitting the message information displayed on the corresponding display (not shown) by the display control device 3 periodically and stores it in the monitor RAM 4a provided in the transmission control bag W4, and A function that updates each time it is imported and an input control bag W
1 to each display control device 3, 3. ．． ．． ．． ．． It has a function of transmitting message information stored in the monitor RAM 4a to the input control device 1 in response to a monitor request command.

Next, the operation of this embodiment configured as described above will be explained with reference to the flowcharts of FIGS. 2 and 3.

Various message information from the input control device 1 is transmitted to each display control device 3, 3. ．． ．． ．． ．． In order to display the display data, first initialize the transmission control device 4, and then follow the data transmission processing procedure based on a predetermined protocol between the human power control device 1 and the transmission control device 4. The message information is transmitted to the transmission control device 4. The transmission control device 4 that received this message information transmits this and each display control device 3.3. , , , message information is transmitted to each display control device 3, 3 . ．． ．． ．． ．． The data are sequentially sent out and displayed on a display unit (not shown). At this time, the transmission route becomes ■-■-■ shown in FIG.

On the other hand, in the transmission control device 4, the display control devices 3, 3 . , , , and outputs a monitor request signal periodically, and in response to this, the display control device 3.3. ,,,,
transmits the message information currently displayed to the transmission control device 4 and stores it in the monitor RAM 4a. The contents of the monitor RAM 4a are rewritten every time a monitor request is made.

The data transmission route at this time is ``--'' shown in FIG.

FIG. 3(A) shows the processing procedure for retrieving message information for monitoring. First, in step sl, a monitor request signal is created in the transmission control device 4, and in the next step S2, the monitor request signal is Display control device 3, 3. ．． ．．
．． ．． are sent in order.

The display control device 3 that received the monitor request transmits the currently displayed message information to the transmission control device 4 (step S3), and stores the received monitor message information in the monitor RAM 4a in the next step S4. The message information stored in the monitor RAM 4a is updated every time a monitor request signal is periodically generated.

Next, a case in which display message information of the display control device 3 is monitored in response to a monitor request command from the input control device I will be described with reference to FIG. 3(B).

First, in step Sll, the transmission control device 4 determines whether a monitor request command sent from the input control device 1 has been received. If it is determined that a monitor request command has been received, the process proceeds to step S12, where the monitor message information in the monitor RAM da of the designated display control bag W3 is read out and sent to the input control device 1. Then, it is checked whether the message information transmitted to the display control device 3 is being displayed accurately. The transmission route at this time is ■-■"-〇-〇 as shown in FIG.

If it is determined in step Sll that no monitor request command has been received, the process proceeds to step 313, where normal message information sending processing is performed.

In this embodiment as described above, each display control device 3,
3. ．． ．． ．． ．． The transmission control device 4 periodically sucks up the message information displayed on the display section and stores it in the monitoring RAM 4a.
Then, in response to a monitor request command from the input control device 1, the monitor message information stored in the monitor RAM 4a is immediately transmitted to the input control device 1. The more units there are, the shorter the transmission processing time when a monitor request is made, the faster the response speed can be, and the message information can be displayed without delay for each floor when providing floor guidance without operating the elevator. , does not affect the display of message information.

Note that the monitor RAM 4a does not need to be provided exclusively for monitoring, and may also be used as a RAM built into the transmission control device that temporarily stores normal messages.

[Effects of the Invention] As described above, according to the present invention, the message information transmitted to each display control device is periodically sucked up by the transmission control device and stored in the memory, and the message information transmitted to each display control device is periodically retrieved and stored in the memory. Since the monitor message information in the memory is configured to be sent back to the input control device at the same time, the monitor transmission processing time can be shortened and the response speed can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator signal transmission control device according to the present invention, FIG. 2 is a state transition diagram of the transmission control device in this embodiment, and FIGS. A flowchart showing the procedure of data transmission in an embodiment, FIG. 4 is a configuration diagram of a conventional elevator signal transmission control device, and FIG.
The figure is a state transition diagram of a conventional transmission control device. 1... Input control device, 3... Display control device, 4...
・Transmission control device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] a plurality of display control devices that display message information on display units disposed in at least one of the car and the landing;
The transmission control device includes an input control device that generates various message information to each of the display control devices, and a transmission control device that performs transmission processing of message information between the input control device and each of the control devices. includes a monitor storage means for periodically sucking up and storing display message information transmitted to each of the display control devices, and a monitor storage means for inputting the monitor message information of the storage means at the time of a monitor request from the input control device. A signal transmission control device for an elevator, comprising means for transmitting signals to a control device.