JPH06253039A - Automatic reporting device - Google Patents

Abstract

PURPOSE:To facilitate a countermeasure to the increase of the number of monitor data without increasing telephone lines by cascade-connecting plural transmitters with the same telephone line. CONSTITUTION:The number of the monitor data of each equipment is 8 as in the conventional manner, and those data of each equipment are inputted to an input circuit 14 of each transmitter 31-33. At the time of the occurrence of the fault of the input monitor data, a microcomputer 16 reports it through a public circuit network to a telephone set or a pager at the destination of report after the lapse of a preliminarily set prescribed time. Then, the first-third transmitters 31-33 are cascade-connected, and the same telephone line is used. Therefore, at the time of the report of the abnormality, a second relay contact R2(b) is turned off, and the circuit is detached under the control of the microcomputer 16. At the time of the report of the abnormality, when the preceding and succeeding transmitters are transmitting data, the abnormality is reported after the end of the transmission. Thus, the three transmitters are cascade- connected so that the number of the data can be increased to 24 by using the same telephone line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitter which transmits data to a receiver by dial-connecting the transmitter to the receiver via a public line network by automatic dial transmission of the transmitter. The present invention relates to an automatic reporting device that receives the data by receiving the automatic dialing in.

[0002]

2. Description of the Related Art An automatic notification device of this type is, for example, various equipment installed in a place such as a building, and also installed in this place to monitor data from individual equipment.
If there is an abnormality in this data, from the transmitter that sends the data via the telephone line according to the telephone number of the report destination to notify the abnormality, and from the sender that is sent via the telephone line. And a receiver such as a telephone for receiving various kinds of data.

In particular, recently, with the spread of pagers, a management mode in which the data of the equipment is reported using the receiver as a receiver has been used by the user. If you install a telephone as a receiver at an appropriate place away from the installed building and remotely monitor the condition of the equipment, if there is no supervisor at the location of the telephone as a receiver, monitor it. On the other hand, with a pager, the use of this type of automatic notification device has become particularly important recently for security reasons, because the status of equipment can be easily monitored remotely from anywhere by a watcher. It is increasing.

[0004]

However, such an automatic notification device has a limitation on the number of data monitoring points that can be monitored by one transmitter. However, if the equipment in the building also becomes diversified and the number of installations exceeds the number of data points that can be monitored by one transmitter, increase the number of transmitters and add each transmitter. While it is necessary to connect each transmitter to a telephone line while connecting equipment to the device, if an existing transmitter is connected to the telephone line, another transmitter must be connected separately. Need to be connected to the telephone line, which means that the cost will increase as the number of telephone lines increases.

It is also possible to prepare an expensive transmitter with a large number of data points that can be monitored in anticipation of future expansion, but this would make the initial equipment cost enormous and unsuitable for cost reduction. Is.

The present invention has been made in view of the above points, and can easily increase the number of data points to be monitored without adding a telephone line and without using an expensive transmitter. The purpose is to be able to respond.

[0007]

In order to achieve the above-mentioned object, the present invention is constructed as follows.

That is, the present invention comprises a plurality of transmitters each having a first connection section for a public line network and a second connection section for a telephone, and includes a second connection section of a transmitter at a front stage and a transmitter of a rear stage. The transmitters are connected in cascade by connecting to the first connection unit respectively, the first connection unit of the first stage transmitter is connected to the public line network, and the automatic dial transmission of each transmitter is performed via the public line network. The transmitter is dial-connected to the receiver so that the data is transmitted from the transmitter side to the receiver.

[0009]

According to the above construction, since a plurality of transmitters are connected in cascade and use the same telephone line, it is possible to easily cope with an increase in the number of data points to be monitored without adding telephone lines. .

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention, FIG. 2 is a block diagram of the transmitter of FIG. 1, and FIG.
FIG. 2 is a front view showing the outer appearance of the transmitter of FIG. 1.

The automatic notification device 1 of this embodiment is, for example,
First to third equipment 2 ₁ to 2 _3, which is installed in a building,
First to third transmitters 3 ₁ to _{3 3,} which are connected to the respective equipments 2 _{1 to} 2 ₃ and are cascaded to each other, a public line network 4, and from the transmitters via the network 4. A telephone 5 and a pager 6 as receivers for receiving the data.

[0013] Each transmitter 3 ₁ to 3 _3, as shown in FIG. 3, an input terminal 7 connected to the equipment 2 ₁ to 2 _3, a power supply terminal 8 connected to a power source, a public line network LINE terminal 9 for telephones, TEL terminal 10 for telephones, setting switch 11 and liquid crystal display section 12, respectively, and such a configuration is basically the same as the conventional example. , LINE terminal 9 and TEL terminal 10
But it is configured to be used as a connector for cascading the transmitters 2 ₁ to 2 _3.

The number of data points to be monitored by each of the equipments 2 ₁ to 2 ₃ is 8 points as in the conventional example, and these 8 points of monitoring data are input to the transmitters 3 _{1 to} 3 ₃ , respectively. It

In this embodiment, in order to cope with the increase in the number of data points to be monitored, the basic unit composed of the first equipment 2 ₁ and the first transmitter 3 ₁ is used for the second and third equipment. 2 ₂ and 2 ₃ and 2nd and 3rd transmitters 3 ₂ and 3 ₃ were added to increase the number of monitoring points from 8 points in the conventional system to 24 points. LI of machine 3 ₁
Connect the NE terminal 9 to the public line network 4 and
The terminal 10 is connected to the second transmitter 3 ₂ LINE terminals 9 of the later stage, connects to LINE terminal 9 of the third transmitter 3 ₃ of the second TEL terminal 10 of the transmitter 3 ₂ further subsequent, the second 3 The TEL terminal 10 of the transmitter 3 ₃ is connected to the telephone 13.

As shown in FIG. 2, each of the transmitters 3 _{1 to} 3 ₃ has an input circuit 14 to which monitoring data of 8 points is input from the equipments 2 ₁ to 2 ₃ and an abnormal data input. And a setting input section 15 for presetting and inputting a telephone number, a device number, or the content of the notification of the report destination when the call is made.
5 and the input circuit 14, based on the output of the microcomputer 16 for controlling each part as described later, a voice synthesis circuit 17 for outputting a voice message when abnormal data is input, and the same abnormal data. And a DTMF circuit 18 for outputting a push signal corresponding to a message displayed on the pager 6 on the receiving side,
C that detects dial tone, ringback tone, etc.
PT (Call Progres Tone) detection circuit 19, low-pass filter 27, attenuator 27, call detection circuit 20 for detecting a call signal, and polarity inversion detection circuit 2
1 and an off-hook detection circuit 22 for detecting off-hook
And a display circuit 23 for displaying the contents of setting input on the liquid crystal display unit 12, and a clock circuit 24 for managing the date and time.
And a non-volatile external memory 2 for storing the contents of setting input
5 and.

Note that R1 and R1 (a) are the first relays and their contacts controlled by the microcomputer 16 according to whether the telephone of the callee is a tone or a dial, and R2 and R2 (b) are micros. Computer 16
The second relay and its contacts, which are controlled as described below by 26, are surge absorbers.

As in the case of the conventional transmitter, each of the transmitters 3 _{1 to} 3 ₃ receives the abnormal input of the monitoring data to the input circuit 14, and then the microcomputer 16 sets a predetermined time, for example, After 5 seconds, the call is sent to the telephone 5 or the pager 6 of the call destination. In this embodiment, the three first to third transmitters 3 _{1 to} 3 ₃ are connected in cascade and the same telephone is called. since using the line, the microcomputer 16 of the transmitter 3 ₁ to 3 ₃ performs the following transmission control.

[0019] That is, each transmitter 3 ₁ to 3 ₃ transmits the data, i.e., when to report the abnormality, so off contact R2 to (b) of the second relay described above disconnecting the subsequent line In addition, when the abnormality is reported, it is confirmed that the transmitters before and after the transmitter are not transmitting, and if the transmitter is transmitting, the notification is performed after the transmission is completed.

FIG. 4 is a flow chart of such transmission control. First, it is judged whether or not there is an abnormal input in the monitoring data from the equipment (step n1). Determines whether a line tone (dial tone) is detected (step n2). If no line tone is detected, the transmitter on the upstream side determines that the line is being used and returns to step n2. When the off-hook is detected, it is judged whether or not the off-hook is detected (step n3). When not detected,
It sends a message that the transmitters before and after it are not transmitting (step n4).

In this way, it becomes possible to report an abnormality from the three _first to _third transmitters 31 to 33 using the same telephone line. In the conventional example, the number of data points to be monitored is Although there were 8 points, the number of data points to be monitored can be increased to 24 in this embodiment.

The TE of the third transmitter 3 ₃ which is the last stage
Since the telephone 13 is connected to the L terminal 10, when the first to third transmitters 3 ₁ to ₃ 3 on the upstream side are not transmitting,
That is, if the handset of the handset 13 is picked up and a line tone (dial tone) is heard, a normal call can be made with the telephone 5 on the receiving side.

In the above-described embodiment, when another transmitter is transmitting, it waits until the transmission of the other transmitter is completed, but as another embodiment of the present invention, the transmitter is prioritized. It is also possible to set a priority and give priority to the transmission of a transmitter having a high priority.

[0024]

As described above, according to the present invention, since a plurality of transmitters are connected in cascade and connected to the same telephone line, the number of data to be monitored can be increased without adding telephone lines. Will be able to support.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

2 is a block diagram of the transmitter of FIG. 1. FIG.

3 is a front view of the transmitter of FIG. 1. FIG.

FIG. 4 is a flowchart of transmission control.

[Explanation of symbols]

1 Automatic reporting device 2 _{1 to} 2 ₃ Equipment 3 _{1 to} 3 ₃ Transmitter 4 Public line network 5, 13 Telephone 6 Pager 9 LINE terminal 10 TEL terminal

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[Procedure amendment]

[Submission date] April 6, 1993

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (3)

[Claims] 1. A plurality of transmitters having a first connection section for a public line network and a second connection section for a telephone set, wherein a second connection section of a transmitter at a front stage and a first connection section of a transmitter at a rear stage are provided. Are connected to each other in a cascade connection, the first connection part of the transmitter at the first stage is connected to the public line network, and the transmitter is connected to the public line network by automatic dial transmission of each transmitter. An automatic notification device characterized by transmitting data to the receiver from the transmitter side by dial-connecting to the receiver. 2. Each of the transmitters has a transmission control unit for transmitting data to the receiver when neither the former stage transmitter nor the latter stage transmitter is using a public line network. The automatic notification device according to claim 1. 3. The automatic notification device according to claim 1 or 2, wherein a telephone is connected to the second connection section of the transmitter at the final stage.