JP3361421B2 - Exchange system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can combine a plurality of telephone lines contracted for transmitting / receiving data of building equipment of a plurality of companies into one and smoothly operate the transmitting / receiving devices. The present invention relates to a switch system that can be used.

[0002]

2. Description of the Related Art A conventional exchange system will be described with reference to FIG. FIG. 10 is a diagram showing the overall configuration of a remote control monitoring system including a conventional exchange system.

In FIG. 10, for example, an elevator system 2 of company A, an elevator system 3 of company B, and an equipment group 4 of company C are installed in a building 1 such as a high-rise building.

Further, in the figure, 5 is an intercom device of the elevator system 2 of Company A, and 6 is a control panel.
Similarly, 7 is an intercom device of the elevator system 3 of Company B, and 8 is a control panel. 9 to 12 are the facilities of Company C.

Further, in the figure, 13, 14, 15
Is a transmitter / receiver of each company, 16 is a general public line, 17 and 1
8 and 19 are control and monitoring centers of each company.

FIG. 10 is a diagram showing the system configuration of the transmission / reception devices 13 to 15 and the control and monitoring centers 17 to 19 currently found in many buildings 1. The control panel 6 has a function of controlling and monitoring the state of the elevator of Company A. Control panel 6
When the change in state is detected, notifies the transmitter / receiver 13 of the change in state. The transmission / reception device 13 has a function of calling to the control / monitoring center 17 and transmitting data as needed when a state change is detected.

The intercom device 5 is installed in a car of an elevator. When the intercom device 5 makes a connection request, the connection request reaches the transmitting / receiving device 13 via the control panel 6. The transmission / reception device 13 makes a call to the control / monitoring center 17, and the control / monitoring center 17 confirms that it is a connection request from the intercom device 5 and picks up the handset. This enables a call between the intercom device 5 and the control and monitoring center 17.

Further, the transmission / reception device 13 automatically receives the control information from the control and monitoring center 17 and transfers the control information to the control panel 6. The control panel 6 controls the elevator of company A based on this control information.

The transmission / reception device 13 has a function of adding a priority to a request from the control panel 6 (or the intercom device 5) and the control / monitoring center 17, and a call request having a higher priority than the present is issued during connection. When it occurs, it has a function to send a disconnection request to both parties currently connected and report that a call request with a higher priority than the current one has occurred.

The elevator system 3 of the company B, the control panel 8, the transmission / reception device 14, the control monitoring center 18, and the intercom device 7 also have the same functions as those of the elevator system 2 of the company A.

Further, the transmission / reception device 15 has a function of controlling and monitoring the equipment group 4 of company C. The transmission / reception device 15 has a function of calling the control and monitoring center 19 and transmitting data when it detects a change in state. Also, the transmitter / receiver 1
The control information 5 automatically receives the control information from the control and monitoring center 19 and controls the equipment group 4 of the company C according to the control information.

In the system of FIG. 10 configured as described above, when the building owner requests company A, company B, and company C to control and manage elevators and equipment, they separately make line contracts with telecommunications carriers. Had to be tied, and it cost a lot.

The transmitting / receiving devices 13 to 15 connected to each facility in the building 1 are contracted for a plurality of telephone lines because of the data handled by each facility and the difference in facility management companies. If the number of telephone lines is reduced to the minimum, maintenance costs for telephone lines can be reduced. Therefore, there is another conventional exchange system as described below.

FIG. 11 shows another conventional exchange system.
Will be described with reference to. FIG. 11 is a diagram showing an overall configuration of a remote control monitoring system including another conventional exchange system.

In FIG. 11, reference numeral 20 designates a transmitter / receiver 13 to.
This is a private branch exchange that connects 15 and the public line 16.

FIG. 11 is a transmission / reception apparatus and control in the case where a conventional private branch exchange is used to reduce the number of lines contracted with a telecommunications carrier to one for remote monitoring of facilities in the system of FIG. It is a system configuration diagram of a monitoring center.

The private branch exchange 20 comprises a transceiver 13,
Upon receiving a call request from each of the terminals 14 and 15, the line is connected to any one of the control and monitoring centers 17, 18 and 19 with priority in advance.

In the system of FIG. 11, the private branch exchange 2
Since 0 connects the line with the preemptive priority regardless of the priority determined by the transmission / reception devices 13 to 15, the urgent call request of another company is not accepted during the line connection.

[0019]

In the other conventional exchange system as described above, the dial-in is used to connect the central office line
In summary, there is a problem that if other equipment tries to report while the line is connected, the line busy is detected and the line cannot be connected.

The present invention has been made in order to solve the above-mentioned problems, and controls the line connection by determining the priority from the difference in the line connection direction, data, voice and other line contents, and controlling the line connection. It is an object of the present invention to obtain an exchange system capable of smooth line control with the telephone line of.

[0021]

In the exchange system according to the present invention, a plurality of elevator systems of different manufacturers are installed.
Controls and monitors the status of elevators in installed buildings
When the status change is notified from the control panel, the corresponding external
When you make a call and send data to the control and monitoring center
By receiving the control information from the control monitoring center
A duplicate of the elevator system that passes to the control panel.
The number of transceivers, the plurality of transceivers, and
Multiple control and monitoring centers for a number of transceivers,
And a private branch telephone exchange connected by one telephone line via the public line, the transceiver device, the elevator-specific short
Make a call to the private branch exchange using a reduction dial and
A telephone exchange has speed dials, telephone numbers, and priorities.
Each has a corresponding priority table,
When receiving an incoming call from a public line, the dial-in service
Connect a line to each transmitter / receiver, and
When making a call to the line, the shortening
Convert the ear to a phone number by referring to the priority table above.
After switching, connect the line and connect the new line while the line is currently connected.
If the continuation request is an incoming call, the priority is the lowest
It is judged as an interrupt and interrupt processing is not performed.
If the line connection request is outgoing, refer to the priority table above.
Prior to the priority of the communication currently connected to the line.
When the priority of sending a new line connection request is high
Interrupt processing is performed by determining that it is a high-priority interrupt.
The new line connection request line is connected .

The exchange system according to the present invention is
The private branch exchange is currently
If the communication while the line is connected is voice, the voice
After sending the idance, the communication currently connected to the line is forcibly disconnected.
However, it is constant when the communication currently connected to the line is the incoming data.
After sending the time jam pattern, the communication currently connected to the line is
If the connection is forcibly disconnected and the communication currently connected to the
If the line is not disconnected after a certain period of time,
This is to forcibly disconnect the communication while the line is connected .

[0023]

[0024]

[0025]

Further, in the exchange system according to the present invention, the priority of the incoming call is set to the lowest, and when the communication currently connected to the line is the incoming call, all the interrupt processing is performed when the communication of the line connection request is the outgoing call. It is equipped with an exchange.

[0027]

DETAILED DESCRIPTION OF THE INVENTION

Embodiment 1. This Embodiment 1 utilizes the fact that many transmitting / receiving devices have a plurality of alerting dials for each equipment or each equipment group, and makes it possible to shorten the PB shortening dial from the equipment, the connection direction of the line, and the difference in data / voice. Since the priority is determined from the above and the line connection is controlled, the line can be smoothly controlled by one telephone line.

The configuration of the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. 1 is a diagram showing an overall configuration of a first embodiment of the present invention. Also, FIG.
FIG. 3 is a diagram showing a configuration of a private branch exchange according to the first embodiment. In each figure, the same reference numerals indicate the same or corresponding parts.

In FIG. 1, reference numeral 20A denotes a transmitter / receiver 13A.
This is a private branch exchange that connects 15A to the public line 16.

In FIG. 2, 21 is a CPU and 22 is a RO.
M and 23 are RAMs, 24 is a line controller, 25 is a voice synthesizer, and 26 is an NCU.

Next, the operation of the first embodiment will be described with reference to FIGS. 3 to 9. 3 to 5
FIG. 4 is a diagram showing the relationship among the equipment, telephone number, abbreviated number, and priority according to the first embodiment. Further, FIG. 6 is a diagram for explaining division of the line disconnection processing according to the first embodiment. 7 to 9 are flowcharts showing the operation of the first embodiment.

First, a normal outgoing / incoming call is as follows. In other words, the private branch exchange 20A uses the dial-in service to receive / transmit each of the transmission / reception devices 13A ...
Connect the line to 15A. When making a call, the speed dial sent from the transmitting / receiving devices 13A to 15A is converted into a normal telephone number and then connected to the line of the telecommunications carrier.

Next, the determination of the priority of interrupts during line connection is as follows. The priority of the currently connected communication is compared with the priority of the communication trying to interrupt the line. If the latter has a higher priority, the interrupt process is started.

The priority of incoming calls from the control and monitoring centers 17 to 19 to the private branch exchange 20A is set to be lower than that of all communications, and when the currently connected communication is an incoming call, interrupt processing is started for all outgoing calls. To do.

As shown in FIG. 3, the transmission / reception device stores a plurality of report destination telephone numbers and automatically selects and issues a report destination telephone number for each state input terminal of the equipment. .
The private branch exchange 20A uses this function.

In the first embodiment, the transmitter / receiver 13A
The telephone numbers registered in 15A to 15A are not for the central office line, and the speed dial is set for the private branch exchange 20A as shown in FIG.

On the side of the private branch exchange 20A, RA
M23 has a priority order table as shown in FIG. 5, and the priority order is determined from the speed dial. Therefore, one transmitter / receiver has as many priorities as the number of telephone numbers that can be registered by itself. Differences in priority order depending on equipment in the same company are set to have a higher urgency, for example, in the case of crime prevention equipment, the priority is set higher than other equipment.

In FIG. 5, issuance of the equipment A2 (priority 2)
If the equipment C5 tries to issue an alarm (priority 4) while the line is connected, the interrupt processing is not performed. Further, at this time, even if the equipment C2 tries to issue an alarm (priority level 2), the interrupt processing is not performed. At this time, if intercom B issues a warning (priority level 0), it is possible that passengers are trapped in the car, so the priority level is high and interrupt processing is performed.

In the case of this example, while the intercom A is connected to the line, notifications other than the intercom B are not subject to interrupt processing. Further, when the intercom B is connected to the line, all notifications are subject to interrupt processing. The priority "0" is treated as the highest priority when interrupted, and as the lowest priority when interrupted.

Next, the interrupt processing (line disconnection method) is as follows. If an interrupt occurs in the priority determination process, the line currently connected must be disconnected. When disconnecting the line, it is necessary to minimize the effect. There are the following two types of contents transmitted and received in the currently connected communication. Firstly, there are voices such as intercom devices in the elevator, and secondly, there are data such as equipment alerts from the transmitter / receiver.

In the private branch exchange 20A, in order to minimize the influence of line disconnection, separate processing is performed for the first and second types, so it is necessary to distinguish between voice communication and data communication. This technology uses existing technology (carrier detection technology for data transmission).

If the communication being transmitted and received on the currently connected line is data, it is generally considered that the line connection time is short and the incoming call is long (although it may be a short incoming call. , If you are doing maintenance or data collection, the connection time is uncertain and the connection time is generally considered to be long). For this reason, it is necessary to disconnect the line in the case of an incoming data communication, but it is considered that there is no problem in waiting for a voluntary line disconnection (transmission end) in the case of a data communication alert.

The method of disconnecting the line is as follows. In the case of voice communication, basically disconnecting the line is left to the person who is talking. When the interruption occurs, the private branch exchange 20A notifies the caller of the interruption by the voice guidance of the voice synthesizer 25 and prompts the line disconnection. If the line is not disconnected, the private branch exchange 20A sends interruption voice guidance at regular intervals, and forcibly disconnects the line when the number exceeds a predetermined number.

In the case of a data call, when the currently connected communication is an alarm, it is known that the connection time is short, and therefore, it waits for the line to be disconnected spontaneously. When the currently connected communication is an incoming call, the connection time may be long, so the private branch exchange 20A interferes with the data communication and forcibly disconnects the line. As an interference method in this case, a jam pattern (irregular data) is sent to the line to destroy the transmission data. In many communication protocols, if invalid data is received, after error processing is performed,
Since the private telephone exchange 20A is designed to perform reprocessing after a certain period of time, the private telephone exchange 20A uses this to send a jam pattern and force it after a certain period of time (which can be arbitrarily set by the private telephone exchange 20A). Disconnect the line.

FIG. 6 shows a summary of the above line disconnection processing.
Is. After disconnecting the line in the process shown in FIG. 6, the interrupted line is connected.

FIG. 7 is a flow chart showing the overall operation of the private branch exchange 20A. In steps 30 to 37, the private branch exchange 20A stores the incoming call and the outgoing call if there is a line connection request and connects the line.

In steps 38 to 41, the private branch exchange 20A determines the priority of the line connection request when a new line connection request is made during the current line connection, and if it is an interrupt of high priority. Perform interrupt processing. The details of the priority order determination processing subroutine in step 39 are shown in FIG. The interrupt processing subroutine of step 41 is shown in detail in FIG.

In steps 50 to 53, the private branch exchange 20A refers to the priority table when the new line connection request is issued during the current line connection, and refers to the priority order of the communication currently being connected (P1). ) And the communication priority (P2) of the new line connection request.

In step 54, the private branch exchange 2
When the priority (P1) of the communication currently connected to the line is “0”, for example, when the intercom B is used, the communication of the new line connection request is determined to be a high-priority interrupt.

In step 55, the private branch exchange 2
0A is the communication priority of a new line connection request (P2)
Is 0, it is judged that the communication of this new line connection request is a high priority interrupt.

In step 56, the private branch exchange 2
0A indicates the priority (P1) of the communication currently connected to the line and the new line connection request if the priority of the communication currently connected to the line and the communication of the new line connection request is not "0". The high priority of communication (P2) is compared to determine the high priority.

In steps 50 and 58, when the new line connection request is an incoming call, the private branch exchange 20A determines that it is a low priority interrupt because it has the lowest priority.

In steps 60 to 64, the private branch exchange 20A sends the voice guidance a certain number of times or more and then transmits the communication currently connected to the line if the communication currently connected to the line is incoming and outgoing and the content is voice. Forcibly disconnect.

In steps 65 to 67 and 64, the private branch exchange 20A forcibly disconnects the communication currently connected to the line after sending a jam pattern for a certain period of time when the communication currently connected to the line is an incoming call (data). .

In steps 68 to 69 and 64, the private branch exchange 20A is currently connected to the line if the communication being currently connected is a call and the content is data, and the line is not disconnected even after a certain period of time. Forcibly disconnects the communication. The number of times voice guidance is sent, the wait time after sending a jam pattern, and the line disconnection wait time are stored in the RAM.
It is registered in 23.

According to the first embodiment, since the telephone line is connected and interrupted / disconnected in the order of priority, an important call request (intercom device 5,
It is possible to connect the line smoothly even in response to a direct call request from the customer 7 or an important equipment signal is issued from the equipment group 4 of the company C). Further, as a method of forcibly interrupting data transmission at the time of interruption, general processing (illegal data reception / no response (no communication)) is used. In addition, taking advantage of the fact that currently common data transmission / reception devices can register multiple notification destination dials, the speed dials are registered to these, and the speed dials determine the priority of line connection. Is also easy.

[0057]

As described above, the exchange system according to the present invention has elevator systems of different manufacturers.
Controls elevator status in multiple buildings.
If the status change is notified from the monitoring control panel, it will be handled.
Call and send data to an external control and monitoring center
The control information from the control and monitoring center.
The elevator system that receives and passes it to the control panel
A plurality of transmitting / receiving devices, the plurality of transmitting / receiving devices, and
Multiple control monitoring sensors corresponding to these multiple transceivers
And a private branch telephone exchange that connects the computer via a public telephone line with one telephone line, and the transmitting / receiving device is an elevator.
Use the unique speed dial to call the private branch exchange
Private telephone exchanges have speed dials, telephone numbers, and
Has a priority table that corresponds to each priority
A dial-in service for incoming calls from the public line
By connecting the line to each transceiver by
In addition, when sending to the public line, it is sent from the transmitting / receiving device.
See the priority table for speed dials
After converting to a phone number, connect the line, and while the line is currently connected,
If a new line connection request is an incoming call, the priority is lowest
Execute interrupt processing by determining that it is a low priority interrupt.
However, if a new line connection request is made,
Refer to the table to prioritize the communication currently connected to the line.
The priority of the transmission of the new line connection request is higher than the priority.
When it is high, it is judged as a high priority interrupt and interrupted.
Since the processing is executed and the line of the new line connection request is connected, there is an effect that the line can be smoothly controlled by one telephone line.

Further, the exchange system according to the present invention is
As explained above, the private branch exchange is
If the communication currently connected to the line is voice,
After sending the voice guidance more than a certain number of times, connect to the current line
The current communication is forcibly disconnected, and the communication currently connected is data.
For incoming calls, after sending the jam pattern for a certain period of time,
Communication that is currently connected to the line is forcibly disconnected.
When the data is transmitted, the line is disconnected even after a certain period of time.
When it does not occur, the communication which is currently connected to the line is forcibly cut off, so that there is an effect that the line can be smoothly controlled by one telephone line.

[0059]

[0060]

[0061]

Further, in the exchange system according to the present invention, as described above, the priority of the incoming call is set to the lowest, and when the communication currently connected to the line is the incoming call, all the interrupts are issued when the communication of the line connection request is the outgoing call. Since the private branch exchange for performing the processing is provided, there is an effect that a smooth line control can be performed with one telephone line.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a private branch exchange according to Embodiment 1 of the present invention.

FIG. 3 is a diagram showing a relationship between equipment and telephone numbers according to the first embodiment of the present invention.

FIG. 4 is a diagram showing a relationship between equipment and abbreviated numbers according to the first embodiment of the present invention.

FIG. 5 is a diagram showing a priority order table according to the first embodiment of the present invention.

FIG. 6 is a diagram showing division of line disconnection processing according to the first embodiment of the present invention.

FIG. 7 is a flowchart showing the overall operation of the private branch exchange according to the first embodiment of the present invention.

FIG. 8 is a flowchart showing a priority order determination process of the private branch exchange according to the first embodiment of the present invention.

FIG. 9 is a flowchart showing an interruption process of the private branch exchange according to the first embodiment of the present invention.

FIG. 10 is a diagram showing an overall configuration of a conventional exchange system.

FIG. 11 is a diagram showing an overall configuration of another conventional exchange system.

[Explanation of symbols]

1 building, 5 intercom system, 6 control panel, 7 intercom system, 8 control panel, 13A, 14A, 15A
Transmitter / receiver, 16 public line, 17, 18, 19 control and monitoring center, 20A private branch exchange.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H04Q 3/58 106 H04Q 3/58 105 H04M 3/44

Claims (3)

(57) [Claims] 1. Elevator systems of different manufacturers are duplicated.
In a number of installed buildings, the status changes from the control panel that controls and monitors the elevator status
Is notified to the corresponding external control and monitoring center
Call and data transmission, and
The control information received from the controller and passed to the control panel.
A plurality of transceivers compatible with the rebate system, a plurality of transceivers and a pair of transceivers
Multiple control and monitoring centers that support
And a private branch telephone exchange to connect the telephone line, the transceiver device, before an elevator-specific speed dial
Call to the private branch telephone exchange, and the private branch telephone exchange, the speed dial, telephone number, and
Has a priority table that corresponds to each priority
When receiving a call from the public line, use the dial-in service.
Connect a line to each transceiver and
When sending to a public line, it is sent from the transmitter / receiver.
Speed dial the telephone number by referring to the priority table
After connecting to the line, connect the line, and if a new line connection request arrives while the line is currently connected,
The interrupt with the lowest priority is judged to be the lowest priority and assigned.
If a new line connection request is made without calling
The priority of the communication currently being connected to the line
Has a higher priority than the transmission of the new line connection request
Occasionally it judges that it is a high-priority interrupt and handles the interrupt.
And a line for which the new line connection request has been made . 2. The private branch exchange is configured to handle the interruption process.
As a matter of fact, if the communication currently connected to the line is voice, a certain number of times
After sending more than one voice guidance,
Forcibly disconnect the communication, and if the communication currently connected to the line is an incoming data, a certain time
After sending the jam pattern, the communication currently connected to the line is forced.
After disconnection, if the communication currently connected to the line is data transmission, it will be constant
If the line does not become disconnected even after a lapse of time, the line is currently connected
2. The exchange system according to claim 1 , wherein the communication is forcibly cut off . 3. The private branch exchanges are prioritized for incoming calls.
Is the lowest, and if the communication currently connected to the line is an incoming call,
Interrupt processing when communication for line connection request is outgoing
Exchange system according to claim 2, wherein the performing.