JPS6350918B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field of the Present Invention> The present invention relates to a device for reporting the operating status of a specific managed facility among a plurality of managed facilities to a master station via a subscriber line. The present invention relates to a selective monitoring and control device that allows a master station to freely selectively monitor managed equipment other than the specified managed equipment that is called by a master station while capturing the subscriber line.

<Prior art> When an emergency situation occurs in multiple managed facilities, such as freezers, soundproof rooms, laboratories, hazardous equipment, and other sealed rooms, information is immediately transmitted to external monitoring equipment. There is a need for a monitoring device that allows information to be transmitted from external monitoring equipment to managed equipment. As such a monitoring device, it is possible to communicate between multiple managed facilities and one slave station via a private line, and between multiple slave stations and one master station via a subscriber line. Conventionally, a centralized monitoring system has been known in which a plurality of managed facilities are monitored from a single master station so that communication can be conducted between the two devices. In this monitoring method, an auto-dial device installed in the slave station allows the managed equipment to directly communicate with the master station via the subscriber line between the slave station and the master station even when the operator is not present at the slave station. ing.

With this conventional device, communication is possible between the managed equipment and the slave station, but if the operator of the slave station is absent when an accident occurs, the automatic dialing device captures the subscriber's line and allows the master station to join. The system automatically calls the telephone number of the client and enables direct communication between the managed equipment and the master station.

<Problems to be solved by the present invention> However, equipment to be managed (e.g., freezers, soundproof rooms, laboratories, hazardous equipment, and other sealed rooms)
Accidents often occur at the same time when multiple managed facilities are installed side by side in the same building. In such a case, when one managed equipment, which is the automatic dialing device, and the master station are connected via the subscriber line and are in a conversation state, the other managed equipment where the accident occurred will not be able to call the master station (child station). Even if you try to call the subscriber (via the station's automatic dialing device), the subscriber's line will not connect and you will not be able to communicate. Moreover, at the time of the accident,
Because of the panic mentality within the managed equipment, the dialogue with the operator at the master station does not get the point across and takes a long time to complete.As a result, no matter how long they wait, they are unable to communicate with the other managed equipment, causing great anxiety. He was dropped and went into a panic state.

Also, after the interaction with one managed facility is completed,
Even if the master station wants to communicate with other managed equipment, this is impossible in the absence of the slave station operators, so the status of other managed equipment is not known, and personnel from the master station are unable to communicate with other managed equipment. I have to rush to the equipment.

In addition, if the parent station automatically disconnects the call and tries to call the slave station because the conversation with one managed equipment is inappropriate, the call will be disconnected at the managed equipment. This causes great anxiety and the user immediately attempts to call the parent station again, resulting in a state where both the subscriber's line and the parent station are called, and the connection becomes impossible.

In addition, because the managed equipment is in a panic state, the master station cannot obtain accurate failure information just by talking with the caller of the managed equipment, and as a result, accurate countermeasures cannot be taken immediately. Even for simple situations caused by simple causes, it is necessary to go to the managed equipment every time.

<Means for solving the above-mentioned problems> In order to solve the above-mentioned problems, the present invention aims to solve the problems described above. This allows the parent station to freely switch the call connection to other managed equipment or slave stations while the user line remains captured, and sends operational status signals of the machinery and equipment of the managed equipment to the parent. It is characterized in that the operation control signal is transmitted to the station side, and the operation control signal is transmitted from the master station side to the mechanical equipment of the managed equipment.

<Effect> This allows the master station to freely select a communication device and control the managed equipment, thereby preventing a panic state due to the inability to communicate when accidents occur simultaneously in multiple managed equipment. Occurrence can be avoided.

<Embodiments of the present invention> (FIGS. 1 to 3) The present invention will be described below with reference to embodiments shown in the drawings.

In FIG. 1, 10 is a managed equipment, 11 is a communication device for emergency communication in the managed equipment 10, 21 is a communication device for contacting a slave station, 22 is a subscriber telephone of a slave station, and 24 is a master station. , 26 is a subscriber's line, and 27 is a public corporation exchange. The communication device 21 of the slave station and the communication device 11 in the managed equipment 10 are connected by a private line 28 via a connection device 30, and the connection device 30 is connected to the subscriber line 26 via a converter 23. has been done. Further, on the master station side, a supervisory control device 50 is connected to the subscriber line 26 via a converter 25.

FIG. 2 is a diagram showing a configuration example of the managed equipment 10 and the connection device 30. Each of the plurality of managed facilities 10 includes a communication device 11 consisting of an activation switch, a microphone, and a speaker, a buzzer 12 that operates when the connection is switched by a communication path connection switching signal from the master station, and a slave station. An incoming call display unit 13 that displays an incoming call when the subscriber line 26 on the side is incoming;
is provided.

Reference numeral 29 denotes a buzzer that operates when the telephone device 11 of the managed facility 10 or the master station calls the telephone device 21 of the slave station.

31 connects the communication devices 11, 21 and the subscriber telephone 24 of the master station so that they can talk, and also connects the subscriber telephone 24 to a plurality of telephones according to a switching command from the supervisory control device 50 of the master station. These are a component line section and a line switching section that switch the connection to either the communication device 11 in the managed facility 10 or the communication device 21 of the slave station.

This premises line section and line switching section 31 are
When calls are received from the communication devices 11 of a plurality of managed facilities 10 in parallel, first-come, first-served priority is given. Alternatively, when talking with the subscriber telephone 24 of the master station, the conversation can be heard through the speaker of the communication device 11.

32 is a presence/absence switch installed in the slave station;
4 refers to the managed equipment 10 while the telephone equipment 11 in the managed equipment 10 calls the slave station telephone equipment 21.
This is a ringing notification unit that sends a ringing tone to the speaker of the communication device 11 in the mobile phone.

35, when the presence/absence switch 32 is set to the "absent" side, or when it is set to the "present" side and there is no response from the telephone device 21 for a predetermined period of time, an absence tone or absence announcement (by an automatic announcement device) is provided. This is a notification unit that sends the message to the speaker of the communication device 11.

When there is a call from the communication device 11 in the managed equipment 10 to the communication device 21 of the slave station, the 36 receives this activation signal via the internal line section 31 and calls a pre-stored specific subscriber (master station). ) is an auto-dial unit (automatic calling device) that sends a dial pulse for the number () to the exchange 27, and is composed of a line control unit 37, a control unit 38, and a dial memory 39.

The control unit 38 includes a call collision prevention circuit that detects an incoming call on the slave station side of the subscriber line 26 and suspends activation of auto-dial;
When a response is received, the other party response detection circuit detects a response using polarity reversal of the subscriber line 26, and operates if no response is detected for a predetermined period of time after auto-dial activation to call the subscriber telephone 24. Contains a timer etc. to be released.

Furthermore, the ring tone and busy tone of the public corporation when calling by auto dialing are heard by the speaker of the communication device 11 in the managed facility 10 via the line control section 37 and the premises line section 31. In addition, in order to be distinguishable from the ring tone and busy tone of this telephone corporation, the ring tone of the above-mentioned call notification section 34 and notification section 35,
Absent sounds are composed.

Reference numeral 40 denotes a receiving unit that receives, via the line control unit 37, a switching signal, a restoration signal, and a machine control signal to the mechanical equipment 14 of the managed equipment 10 from a supervisory control device 50 (described later) of the master station.

44 sends a switching command and a restoration command to the line switching unit 31 to perform switching and restoration, and the mechanical equipment 14
This is a reception processing unit that sends control commands to and controls it.

45 is a failure detection unit 15 obtained by sequential scanning.
A failure detection signal of the mechanical equipment 14 from
This is a transmission selection section that receives a presence/absence signal etc. from the presence/absence switch 32 and sends it to the transmission section 41.

Reference numeral 41 denotes a transmitter that receives the signal from the transmission selector 45 and the switching completion signal from the line switcher 31, and sends them to the master station via the line controller 37.

46 is a transmission control section that controls the operations of the transmitting section 41, the receiving section 40, the receiving processing section 44, and the transmission selecting section 45. 42 is a power supply that supplies AC100V, 4
3 is a battery for power outages.

FIG. 3 shows a monitoring control device 50 installed on the master station side.
2 is a diagram illustrating an example of the configuration in which a subscriber telephone 24 of a master station is connected via a converter 25 to a subscriber line 26 to which it is connected.

In the figure, reference numeral 52 denotes a changeover switch for switching the telephone path connection to the subscriber telephone 24 to either the telephone device 21 of the slave station or the telephone device 11 in the plurality of managed facilities 10; This is an operation section that includes a recovery button to be released and a control switch for controlling the mechanical equipment 14.

Reference numeral 53 denotes a transmitter that sends out a switching signal, a recovery signal, and a machine control signal in response to the operation of the operation unit 52. 54 is the transmitter 4 of the slave station connection device 30
A receiving section 56 receives a switching completion signal, a failure signal, a presence/absence signal, etc. from 1, and 56 is a transmission control section.

62 is connected to both the lower contact point of the converter 25 and the intermediate point between the upper contact point and the specific subscriber telephone 24, and is always connected as shown in FIG. 3 while the specific subscriber telephone 24 does not respond. A signal from the subscriber line 26 is sent to the receiver 54 via the converter 25 connected to the lower contact point, and when there is a response from the subscriber telephone 24, this is detected and the converter 25 is switched to the upper side. It is a line control section that switches to continuous mode and detects this when the subscriber telephone 24 finishes responding and switches the switch 25 downward to continuous mode.

Therefore, the auto dial section 3 in the connection device 30
6, when the subscriber telephone 24 is called by the call signal of the public corporation, if there is no response from the subscriber telephone 24, the line controller 62 calls the subscriber line 2.
6 is received by the receiving section 54, the bell 60 rings, and then the failure signal and presence/absence signal are received by the receiving section 54.

The contents of this signal are sequentially displayed on the display section 55 via the reception processing section 59 and printed on the printer 61.

Reference numeral 63 denotes a control unit that controls the line control unit 62 to switch the converter 25 to the lower side when the operator of the master station operates the operation unit 52 to send a signal from the transmitter 53.

57 is a power supply that supplies AC100V, and 58 is a battery for use during a power outage.

<Operation of the above-mentioned embodiment> Next, the concrete operation of the above-mentioned apparatus will be explained with reference to FIGS. 2 and 3.

(1) When the activation switch of the communication device 11 is turned ON in the managed equipment 10, if the presence/absence switch of the slave station is set to the “present” side, the communication device 21
The buzzer 29 sounds. During this ringing, the ringing tone from the ringing notification unit 34 is transmitted to the managed equipment 1 through the premises line unit 31 and the private line 28.
It is listened to by the speaker of the communication device 11 in 0.

When the telephone device 21 of the slave station responds, it becomes possible to communicate with the telephone device 11 in the managed facility 10 via the private line section 31 and the private line 28.

Note that when a plurality of managed facilities 10, 10, . . . call a slave station in parallel, only the first managed facility 10 to arrive is connected.

The speaker of the communication device 11 of the other managed equipment 10 that has performed the calling operation can hear the conversation between the managed equipment 10 and the slave station.

Note that the transmission selection unit 45 on the slave station side sequentially operates the failure detection units 15 of the managed equipment 10, 10, . . . to obtain a failure signal.

(2) If the slave station does not respond until a predetermined period of time has passed even if the presence/absence switch 32 is set to the “absent” side, the notification unit 35 An absentee tone or an absentee announcement is heard by the speaker of the communication device 11 in the managed facility 10.

(3) Auto dialing is activated along with a call to the telephone device 21 of this slave station. That is, the automatic calling device 36 captures the subscriber line 26 of the master station and sends out the dial pulse stored in the dial memory 39, and the exchange 27 sends out a calling signal to the subscriber telephone 24 of the master station. be done.

Note that if the subscriber line 26 on the slave station side is receiving a call, the call collision prevention circuit in the control section 38 operates and the automatic calling device 36 is not activated. (At this time, the incoming call display unit 13 in the managed equipment 10 displays that the call is incoming.) Also, the telephone corporation's ringing tone or busy tone to the subscriber telephone 24 is
It is sent to the managed equipment 10 via the line control unit 37 and the premises line unit 31, and is listened to by the speaker of the communication device 11.

(4) On the main station side, the subscriber line 26 is connected to the lower side by the converter 25 as shown in FIG. ing.

When the subscriber telephone 24 responds by the operator of the master station, the switch 25 is switched to the upper side by the line control section 62, and both the telephone 24 and the line control section 62 are connected to the subscriber line 26. .

Please note that due to the absence of the operator, there will be a designated period of time (e.g.
If the subscriber telephone 24 does not respond after 50 seconds), a timer in the control section 38 operates to cancel the call.

(5) While the master station is calling, the failure detection signal from the failure detection unit 15 or the presence/absence signal from the presence/absence switch 32 obtained by the transmission selection unit 45 of the slave station as described above is used to select the transmission. The signal is sent to the transmitting section 41 via the section 45, and this signal is sent to the lower contact of the converter 25 (while the subscriber telephone 24 is not responding,
(connected to the lower side) is received by the line control unit 62. In this way, the failure signal and presence/absence signal from the transmitter 41 are received by the receiver 54 via the line controller 37, the subscriber line 26, the converter 25 (lower side), and the line controller 62. , the bell 60 rings, and the contents of the signal are sequentially displayed on the display section 55 and printed on the printer 61.

Therefore, even if the operator is absent from the master station, information from the managed equipment 10 side is transmitted.

(6) When the operator answers on the subscriber telephone 24, the switch 25 is switched to the upper side and communication becomes possible.

(7) As described above, the conversation at this time can be heard through the speakers in other managed equipment 1010, etc., which performed the operation of calling the slave station with a delay, other than the managed equipment 10 concerned.

(8) Since the information is sent as described above while the master station is calling, the master station displays information on the absence or malfunction of the operator of the slave station on the display 55 before the operator answers the subscriber telephone 24. Alternatively, the information can be obtained from the printer 61. When the master station side responds with the subscriber telephone 24, the communication device 11 of one specific managed facility 10 and the subscriber line 2
6. It is possible to communicate via the line control section 37, the in-house line section 31, and the private line 28.

(9) When in the conversation state, for example, if it is thought that an accident has occurred simultaneously in multiple managed facilities 10, 10, etc., the operator of the master station must A switching signal (for example, a tone (DTMF)
There is a signal or FSK signal. In order to carry out telephone calls and switching signals at the same time, the telephone calls and switching signals are frequency-divided and used to prevent mutual interference. ) is output from the transmitter 53.

When this operation section 52 is operated, the control section 63 controls the line control section 62 to return the converter 25 to the lower side. Therefore, the switching signal of this communication device is sent to the line switching section 31 via the transmitting section 53, the line controlling section 62, and the line controlling section 37.

The line switching unit 31 is
The communication devices 11, 11, . . . of the plurality of managed facilities 10, 10, .
and among the communication devices 21 of the slave station, the switch is made to one of the communication devices 21 specified by the switching signal, and as a result, the subscriber telephone 24 of the master station switches to the communication device (11, 11,
...or one of the 21).

In this way, while capturing the subscriber line 26, the communication device 11, 11,... of any of the managed equipment 10, 10,... or the slave station connected to the captured slave station via the private line 28 Device 2
1, the master station can arbitrarily switch to any one of them at its own discretion.

Therefore, a plurality of other managed equipments 10, 10, . . . that are in a hurry to communicate are not left in a standby state as in the past.

When this switching is completed, a completion signal from the transmitting section 41 is received by the receiving section 54 of the connection control device 50, and the number of the managed equipment 10 or the number of the slave station that has been switched and connected is displayed on the display section 55. Buzzers 12 and 29 sound in the managed equipment 10 or slave station that has been switched and connected.

(10) The operator at the master station can also determine the nature of the failure using the display section 55, printer 61, or through conversation, and operate the operating section 52 to send out machine control signals. This machine control signal is
Transmission section 53, line control section 62, converter 25
(lower side), the signal is received by the reception unit 40 of the slave station via the subscriber line 26 and the line control unit 37, and is output from the reception processing unit 44 to the mechanical equipment 14 to control the mechanical equipment of the managed equipment 10. This makes it possible to eliminate as much as possible the waste of having the operator of the master station visit the managed equipment 10 one by one.

(11) If the communication devices 11 and 21 remain disconnected within the managed equipment 10 or at the slave station after the conversation ends, the operator at the master station operates the recovery switch on the operation unit 52 to send a recovery signal. It is sent from the section 53. Receiving section 40 receives this and releases and restores the communication path between either telephone device 11 or 21 and subscriber telephone 24.

It goes without saying that the subscriber telephone 22 of the slave station may be used in place of the communication device 21 in the above embodiment.

<Effects of the Present Invention> As explained above, in the present invention, even when communicating with one managed facility, the master station remains in the subscriber line capture state, and the master station can communicate with other managed facilities. Since the call can be freely switched to a person or the operator of the slave station, the call can be switched regardless of the response within the managed equipment, which is in a state of panic.
Moreover, since the connection to the one managed equipment connected via the subscriber line is not released, there is no line connection failure due to a conflict between calls from both parties, which was the case in the past. It is possible to quickly respond and take appropriate measures in multiple managed facilities and slave stations, and it is possible to avoid panic situations due to inability to communicate when accidents occur simultaneously in multiple managed facilities. In addition, the failure information of the managed equipment can be automatically and accurately obtained on the master station side, and furthermore, the operation of the machinery and equipment of the managed equipment can be controlled using control signals from the master station, so there is no need to go to the trouble of managing the equipment. You can also avoid having to go to each facility.

[Brief explanation of the drawing]

The drawings show an embodiment of the selection monitoring control device of the present invention, and FIG. 1 shows an outline of the overall configuration.
FIG. 2 shows the configuration of the connecting device, and FIG. 3 shows the configuration of the supervisory control device. 10...Managed equipment, 11...Telephone device, 21
... Telephone device, 26 ... Subscriber line, 28 ... Private line, 30 ... Connection device, 31 ... Premises line section and line switching section, 32 ... Presence-absence switch, 36 ... Auto dial section 40... Receiving section, 41... Transmitting section, 44... Reception processing section, 45
...Transmission selection section, 46...Transmission control section, 50...
Monitoring control device, 52... operation unit, 53... transmitting unit, 54... receiving unit, 55... display unit, 56...
Transmission control unit, 59...Reception processing unit, 61...Printer, 62...Line control unit, 63...Control unit.

Claims (1)

[Scope of Claims] 1. A plurality of communication devices 11, 11... provided in each of the plurality of managed facilities, and a plurality of communication devices 11, 11... provided in a slave station, respectively of the plurality of managed facilities. A slave station communication device 21 that is capable of making a call via a private line; A communication device 11, 11, 11, 11, . an automatic calling device 36 that captures the subscriber line 26 of the master station by activation of the subscriber station; a transmitting unit 41 that transmits a signal to a communication device other than the activated calling device, which is installed in the master station and connects the specific subscriber telephone 24 to the calling device that activated the automatic calling device 36; Any communication device and the specific subscriber telephone 24
a supervisory control device 50 that sends a switching signal for switching to a communication path connection with the subscriber line or an operation control signal for controlling the operation of the mechanical equipment of the managed facility to the subscriber line; and the specific subscriber telephone set. 24, the supervisory control device 50 and the subscriber line 26 are connected, and when the specific subscriber telephone 24 responds,
Switching is performed by the line control unit 62 in the supervisory control device 50 so that the connection is continuously switched to the specific subscriber telephone 24, and when the response of the specific subscriber telephone 24 is completed, the connection is continuously switched to the supervisory control device 50. Controlled converter 2
5, provided in the slave station, receiving the switching signal or operation control signal from the subscriber line, and transmitting the switching signal of any of the communication devices to the subscriber line 26 or the machine of the managed equipment; a receiving unit 40 that outputs an operation control signal to the equipment; and a receiving unit 40 that is provided in the slave station and receives the switching signal from the receiving unit 40 to switch the communication device of the managed equipment to any of the other managed equipment. To that communication device,
and a switching device 31 that switches the communication path connection while capturing the subscriber line 26, and on the master station side, the failure detection signal of the mechanical equipment of the managed equipment or the slave station from the transmitter 41 is provided. In addition to receiving the presence/absence signal, it outputs a switching signal for the communication device of one of the managed facilities to the receiving section 40 via the captured subscriber line 26, and keeps the subscriber line 26 captured. , switches the call connection between the master station and the communication device of any managed equipment, and further outputs operation control signals for the mechanical equipment of the managed equipment to control the operation of the mechanical equipment of the managed equipment. A selective monitoring control device characterized by: