JPH11316887A - Message device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a message device which can find erroneous setting in its early stage even when the telephone number of a message destination is erroneously set to the message device by deciding that a telephone number except a prescribed message destination is set when a response signal is not received within a prescribed time after confirming line connection. SOLUTION: When a message device 1 sets the telephone number of a third person except a security center device 2 to a 1st telephone number, the device 1 first calls to the telephone system 6 of the third person. However, even if the system 6 of the third person responds to a calling signal and an exchange 3 inverts the polarity of a telephone line 4 and detects it, naturally, a response signal from the device 2 is never received. Then, when a prescribed response signal is not received after polarity inversion detection, the device 1 decides that a storing part stores the telephone number of a third person except a security center mistakenly as calling to the system 6 of the third person except the security center.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a notifying device for transmitting various kinds of security information to a predetermined reporting destination such as a security center by using a telephone line. The present invention relates to a notification device that can detect an erroneous setting at an early stage when an erroneous setting is made.

[0002]

2. Description of the Related Art In a security system using a telephone line, for example, various sensors for detecting intruders, fires, gas leaks and other abnormalities are installed in an office or the like to be guarded, and these abnormal information is transmitted to the telephone line. Security systems for sending information to security centers have become widespread.

In such a security system using a telephone line, a telephone number of a security center or the like as a notification destination is set and stored in advance in a notification device, and an abnormal signal or security mode information generated in a security target house or the like is stored. When the security information such as the security information is transmitted to the security center, which is the report destination, the security center is connected to the public network using the stored telephone number to automatically connect to the security center.

[0004] In such a conventional security system, since the security center of the report destination monitors a large number of reporting devices in a concentrated manner, it has a plurality of telephone lines and telephone numbers and a plurality of reporting devices. Can be received even if there are simultaneous transmissions from.

[0005] On the notification device side, for example, two telephone numbers of the above-mentioned security center are registered, and if a telephone call cannot be made with the first telephone number, an automatic call is made using the second telephone number. I try to connect.

[0006]

However, if the telephone number of a report center such as a security center is set by mistake when the telephone number is set by mistake, the report device is completely unrelated. There is a risk of calling a telephone device of a third party that does not have a telephone.

[0007] Then, since the security device cannot send out the security information even if a third party telephone device is called, the security information is transmitted to the security center using the second telephone number. Will be.

In the security center, it is not usually displayed whether the security information transmitted from the reporting device is received by the first telephone number or the second telephone number.
For example, even if the first telephone number is incorrectly set in the notification device, it is often not noticed.

[0009] In this case, there is a risk that the notification device will make an incorrect call to a third party telephone device for a long period of time.

In view of the above-mentioned problems, the present invention has been made to provide a notifying apparatus which can detect a telephone number of a notifying party in a notifying apparatus at an early stage, even if the telephone number is incorrectly set. Aim.

[0011]

SUMMARY OF THE INVENTION The present invention relates to a reporting device for transmitting various types of security information using a telephone line, and a reporting destination telephone number storing means for storing a reporting destination telephone number;
Line confirmation means for detecting that the telephone line of the call destination is not in a busy state when a call is made based on the report destination telephone number when transmitting security information, and receiving a response signal transmitted from a predetermined report destination Response signal receiving means, and when a response signal is not received by the response signal receiving means within a predetermined time after the line connection is confirmed by the line connection confirmation means, a predetermined number is stored in the report destination telephone number storage means. It is determined that a telephone number other than the report destination is set.

Further, there is provided second report destination telephone number storage means for storing a second report destination telephone number, and the telephone number stored in the report destination telephone number storage means is set to a telephone number other than a predetermined report destination. If the information has been
Notify the report destination.

[0013] Further, the line confirmation means is constituted by means for detecting polarity reversal of the telephone line.

Further, the line confirmation means detects a ringback tone transmitted from the exchange.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 shows the overall configuration of, for example, a security system to which the notification device of the present invention is applied.

Reference numeral 1 denotes a notification device according to the present invention, which is installed in a house to be guarded or the like. Reference numeral 4 denotes a telephone line connecting the notification device 1 to the exchange 3; 51, a first telephone line connecting the security center device 2 to the exchange 3; 52, a second telephone line connecting the security center device to the exchange 3; Line. Reference numeral 2 denotes a security center device, which is connected to the notification device 1 via the telephone lines 51 and 52, the exchange 3, and the telephone line 4, and transmits and receives signals such as security information to and from the notification device 1. Reference numeral 3 denotes an exchange of a telephone company, and reference numeral 6 denotes another telephone 6 connected to the exchange 3 by a telephone line 5n.

Note that the telephone 6 does not constitute a security system, but is illustrated to explain the operation of the notification device 1.

FIG. 2 is a functional block diagram of the notification device 1.

Reference numeral 11 denotes a telephone line connected to the telephone line 4.
A network control unit (line confirmation unit) that performs polarity reversal and polarity detection, detects the state of the DC loop of the telephone line 4, sends dial pulses, and the like. Reference numeral 12 denotes a modem unit for converting information transmitted from the notification device 1 to the security center device 2 into a modem signal of a predetermined format and transmitting the modem signal. Reference numeral 14 denotes a display unit, which is composed of, for example, a liquid crystal display, and displays a security state, details of an abnormality, an operation state of the notification device, and the like. An operation unit 15 includes a push button switch, a dip switch, and the like, and is used to set an operation mode and the like of the notification device 1. Reference numeral 16 denotes a storage unit that records a first telephone number, a second telephone number, security information, and the like of a report destination. (Notification telephone number storage means, second notification destination telephone number storage means) 17 is an alarm signal input unit, to which detection signals from an intrusion detection sensor, a fire detection sensor, a gas leak detection sensor, and the like (not shown) are input. A control unit 13 controls the operation of each unit described above.

Next, with reference to FIG. 3, an operation in which the reporting device reports security information to the security center will be described.

For example, when a not-shown intrusion detection sensor detects an intruder, an intrusion abnormality signal is input to the alarm signal input unit 17. When the control unit 13 determines that it is necessary to transmit an intrusion abnormal signal to the security center device 2 in a security set state or the like, the first telephone stored in the storage unit 16 as the first telephone number of the security center. The number is read and set in the network control unit 11 (step S31 in FIG. 3). The network control unit 11 sends out a dial pulse composed of the first telephone number via the telephone line 4.

Hereinafter, the operation will be described in detail. A voltage of about 48 V is normally supplied from the exchange 3 to the telephone line 4 during non-talking (when on-hook). When transmitting the security information, the notification device 1 forms a DC loop of the telephone line 4 using relay switch means (not shown) provided in the network control unit 11 (on-hook) (step S3 in FIG. 3).
2).

After the off-hook operation, the network control unit 11
After the elapse, the exchange becomes ready for reception, and a 400 Hz dial tone is transmitted from the exchange. A dial pulse or push-button dial signal including the first telephone number is transmitted (step S33 in FIG. 3).
When receiving the call signal via the exchange 3, the security center device 2 automatically goes off-hook and responds. Exchange 3
Reverses the voltage polarity of the telephone line 4 when the security center device 2 goes off-hook and responds automatically. The network control unit 11 of the notification device 1 detects the polarity inversion of the telephone line 4 (see FIG. 3).
Step S34) Then, when the modem unit 12 receives a response signal transmitted from the security center device 2 (FIG. 3).
Step S35) The predetermined security information is transmitted to the security center device 2 by the modem unit 12.

Here, if the telephone line of the first telephone number on the side of the security center device 2 is already in use and busy, the polarity of the voltage of the telephone line 4 does not reverse within a predetermined time (step in FIG. 3). S37), the network control unit 11 of the notification device 1 releases the DC loop (on-hook), ends the notification operation once (Step S310 in FIG. 3), and then continues the second operation.
Is set in the network control unit 11 (step S311 in FIG. 3) to perform a calling operation.

Next, the operation of the notification device 1 when the telephone number other than the security center is set by mistake in the notification device 1 will be described. When the notification device 1 has set a telephone number of a third party other than the security center device 2 as the first telephone number,
The notification device 1 first calls the telephone device 6 of the third party as described above.

However, even if the exchange 3 inverts the polarity of the telephone line 4 and detects this (step S34 in FIG. 3) in response to the call signal from the third party telephone device 6, the security center device 2 naturally Is not received (step S38 in FIG. 3). Therefore, when the notification device 1 does not receive the predetermined response signal after the detection of the polarity inversion, it is assumed that the telephone device 6 of the third party other than the security center has been called, and the storage unit 16 stores the third device other than the security center. Judge that the telephone number of the person is erroneously stored (FIG. 3
Step S39).

As described above, when the notification device 1 determines that the setting of the telephone number of the report destination is erroneous, there are two conditions that the telephone line of the call destination is not in a busy state and that a predetermined response signal is not received. is necessary. This is because a predetermined response signal cannot be received when the telephone line is busy even if the telephone number of the predetermined security center is correctly set as the telephone number of the report destination. In the notification device 1, the security center device 2 is then called with a second telephone number.
To send security information, and at this time, an alarm signal indicating that the first telephone number is incorrectly set is also sent.

Upon receiving the above-mentioned alarm signal, the security center device 2 displays it on a display (not shown).

Next, a second embodiment will be described with reference to the flowchart of FIG.

In the second embodiment, the network control unit 11 is provided with a ring back tone detecting means for detecting a ring back tone transmitted from the exchange 3 via the telephone line 4, and the call destination is a call signal of the exchange 3. In the first embodiment, whether the telephone line is inverted or the busy state is detected is detected, whereas in the second embodiment, the determination is made by detecting the ringback tone. different.

This is because, when the notification device 1 is connected to the exchange 3 of the telephone company via a private branch exchange (not shown), even if the telephone line is reversed by the exchange 3 of the telephone company, the private branch exchange, etc. Does not correspond to this and does not reverse the polarity in some cases.

The operation of the difference will be described in detail below.

After transmitting the dial pulse with the first telephone number, the notification device detects the ringback tone transmitted from the exchange 3 (step S324 in FIG. 4).

If the ring back tone is not detected within the predetermined time, the telephone line 51 is determined to be busy and busy, and the transmission operation is performed with the second telephone number. When a ringback tone is detected within a predetermined time, subsequently, a predetermined response signal is received from the security center device 2 within a predetermined time. Here, if the predetermined response signal is not received within the predetermined time, it is assumed that the telephone device 6 of the third party other than the security center has been called, and the telephone number of the third party other than the security center is stored in the storage unit 16. It is determined that the number is incorrectly stored (step S329 in FIG. 4).

In this embodiment, the polarity inversion detection or the ring back tone is detected to determine whether the call destination is busy. However, the present invention is not limited to this. The busy tone to be performed may be detected.

[0037]

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a security system to which a notification device according to the present invention is applied;

FIG. 2 is a block diagram of a notification device according to the present invention.

FIG. 3 is an operation flowchart of the notification device according to the present invention.

FIG. 4 is an operation flowchart of the notification device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Notification apparatus 11 ... Network control part 12 ... Modem part 13 ... Control part 14 ... Display part 15 ... Operation part 16 ... Storage part 17 ... Alarm signal input part 2 ... Security center apparatus 3 ... Exchange 4 ... Phone lines 51 and 52 , 5n ... telephone line 6 ... telephone

Claims (4)

[Claims] 1. A reporting device for transmitting various types of security information using a telephone line, a report destination telephone number storage means for storing a report destination telephone number, and a report destination telephone number when transmitting security information. A line confirming means for detecting that the telephone line of the call destination is not busy when the call is made based on the call, and a response signal receiving means for receiving a response signal transmitted from a predetermined report destination; If a response signal is not received by the response signal receiving means within a predetermined time after the connection of the line is confirmed by the connection confirmation means, a telephone number other than the predetermined report destination is set in the report destination telephone number storage means. A notification device characterized in that it is determined that there is. And a second report destination telephone number storing means for storing a second report destination telephone number, wherein the telephone number stored in the report destination telephone number storage means is a telephone number other than a predetermined report destination. Is set, the information to that effect is
The notification device according to claim 1, wherein the notification is made to a notification destination. 3. The notification device according to claim 1, wherein said line confirmation means comprises means for detecting polarity reversal of a telephone line. 4. The notification device according to claim 1, wherein said line confirmation means comprises means for detecting a ringback tone transmitted from an exchange.