JPH0563838A - Housing information notice system - Google Patents

Abstract

PURPOSE:To realize the housing information notice system by restoring a telephone line automatically to inform various housing information to a notice destination when it is required to inform the various house information to the notice destination and even when a permanent call causes the telephone line to be in a high and dry state. CONSTITUTION:When a relay contact 14 turned is to the 'make' side for notice of housing information, and when a telephone line 3 is in a high and dry state and an electric signal 171 cannot be detected, a microprocessor 18 opens a DP switch for 11sec to restore the telephone line 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing information reporting system for reporting various housing information to a report destination via a telephone line.

[0002]

2. Description of the Related Art Conventionally, a telephone having a handset, an in-house information sending circuit for reporting housing information such as gas leaks to a report destination via a telephone line, and a telephone line for sending a housing information to the telephone side There is known a house information reporting system including a switch for switching from the home information sending circuit side.

[0003]

However, in the above-mentioned conventional house information reporting system, when the in-home information transmitting circuit notifies the report destination, even if the switch is switched to the in-home information transmitting circuit side, the telephone receiver is disconnected. If the telephone line is in a high-and-dry state, there is a drawback in that it is not possible to call the callee. An object of the present invention is to notify various home information by automatically performing line restoration even when the telephone line is in a high and dry state when the receiver is disconnected when it is necessary to report various home information to the report destination. The purpose is to provide a housing information reporting system that can be reported first.

[0004]

[Means for Solving the Problems] In order to solve the above problems,
The present invention provides a telephone having a handset and capable of communicating with other telephones via a telephone line, and a home information sending circuit for converting various home information into a home information signal and notifying a report destination through the telephone line. In the housing information reporting system including a switching means for switching the telephone line from the telephone side to the home information transmitting circuit side when reporting the housing information, when a high and dry state of the telephone line is detected, We adopted a configuration that provided line restoration means to open the telephone line for a predetermined time to restore the line.

[0005]

[Operation and effect of the invention] When it is necessary to report various home information to the report destination, the line restoration means opens the telephone line for a predetermined time even if the telephone line is in a high-and-dry state due to the disconnection of the handset of the telephone. Since the line is restored by doing so, various housing information can be promptly reported to the report destination.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the house information reporting system A includes a speech network circuit 11, a calling signal detecting circuit 12 for detecting a calling signal, and a line occupancy detecting circuit 13 for detecting whether or not the telephone 2 occupies the telephone line 3. , A home contact information transmitter 1 including a relay contact 14 for switching the telephone line 3, a DP switch 15 for generating a DP signal, a dial transmission circuit 16, a line voltage detection circuit 17, and a microprocessor 18, and a telephone receiver 21 A telephone 2 that can communicate with another telephone via a line 3 is provided.

The speech network circuit 11 which is a home information transmission circuit is a circuit for putting a push button (PB) signal output from the dial oscillation circuit 16 and various house information on the telephone line 3 as a house information signal, and a modem. The output of 111 is input. The housing information includes regular meter reading data obtained by measuring the amount of gas used from a gas meter, voltage from a gas leak alarm, nurse call by pressing an emergency button, and the like.

The ringing signal detection circuit 12 is connected in parallel to the telephone line 3 and is used for ringing signals (generally AC 75V, 16H).
When z) is detected, the electric signal 121 is sent to the microprocessor 18.

The line occupation detection circuit 13 has a relay contact 14
Is arranged between the break side of the telephone and the telephone 2, and when the handset 21 of the telephone 2 is detached from the hook base 22 and a current flowing is detected, an electric signal 131 is sent to the microprocessor 18. When the telephone line 3 is in the high and dry state, the electric signal 131 is not transmitted.

The relay contact 14 is the microprocessor 1.
8 is a contact point of a relay 141 controlled by
Although the movable contact is on the break side, it can be switched to the make side (position shown in the figure) when reporting housing information.

When the telephone line 3 is a dial pulse line, the DP switch 15 is for generating a dial impulse by opening and closing the contacts. If the telephone line 3 is a push line, the closed state is maintained. Also, DP
The switch 15 constitutes a part of the line restoration means, and when the line is restored, the telephone line 3 is kept for a predetermined time (11 seconds in this embodiment).
During this period, leave it open.

When the telephone line 3 is a dial line, the dial transmission circuit 16 sends a DP switch control signal for opening and closing the DP switch 15 to the DP switch 15.
In the case of the push line, the DP switch control signal for closing the DP switch 15 is sent to the DP switch 15, and the PB signal is sent to the speech network circuit 11.

The line voltage detection circuit 17 is an L line of the telephone line 3.
It is a circuit that detects the presence or absence of a voltage applied between 1 and L2 (for example, considers it as being above 1.5 V), and sends an electric signal 171 to the microprocessor 18 during the detection.

The microprocessor 18 (driven by a lithium battery) is a dial transmission circuit based on electric signals 121, 131, 171 and a house information signal from a gas meter, a gas leak alarm, an emergency button, etc. connected via the interface 181. 16, relay 141, modem 111
It is a one-chip microcomputer that controls the. Even if the house information signal is sent, the microprocessor 18 does not switch the relay contact 14 to the make side while the electric signal 121 or the electric signal 131 is detected.

The telephone 2 is a 601 type telephone in this embodiment.

The telephone line 3 is connected to an exchange (for example, a D70 type digital exchange) in the central office. When the exchange detects that the handset 21 is detached continuously for a set time, this exchange stops application of line voltage to the telephone line 3 to prevent power consumption, and the telephone line 3 is set to high and dry. Put in a state. Further, the exchange has a monitoring pulse 31 for detecting that the handset 21 has been returned to the hook base 22.
Is transmitted at intervals of 10 seconds.

Next, the operation of the housing information reporting system A (when the line is restored) will be described with reference to FIG. Phone 2
The telephone line 3 is in a high-and-dry state after a predetermined time has passed since the handset 21 of the device has come off the hook base 22.
It became necessary to report housing information to the report recipient (at T1)
In this case, the microprocessor 18 energizes the relay 141 and switches the relay contact 14 to the make side. The microprocessor 18 grasps that the telephone line 3 is in the high and dry state by the line voltage detection circuit 17,
At time T2, the DP switch control signal is sent out to open the DP switch 15 for 11 seconds. The exchange considers that the handset 21 of the telephone set 2 has been returned to the hook stand 22, and reapplies the line voltage to the telephone line 3. Microprocessor 1
The line voltage detection circuit 17 indicates that the telephone line 3 is restored.
After that, the DP switch 15 is closed at time T3. At time T4 (T3 + 4 seconds), the dial transmission circuit 16 dials the other party. After confirming the response of the report destination (at the time of T5), the microprocessor 18 sends the house information to the telephone line 3.

Hereinafter, the house information reporting system A of this embodiment
Describe the advantages of. (A) If the telephone line 3 is in the high and dry state when the handset 21 is disconnected when reporting gas leaks or regular meter reading data to the gas company, or when it is necessary to report the emergency situation to a medical institution, The DP switch 15 is opened for 11 seconds to restore the line. This allows
You can promptly report urgent housing information,
Accidents can be prevented. (Ii) Since the DP switch 15 is effectively used, the line voltage detection circuit 17 is newly installed, and the program of the microprocessor 18 is changed, a slight increase in manufacturing cost is sufficient. (V) When it is not necessary to report housing information, the line is not restored even if the telephone line 3 is in the high and dry state. Therefore, the lithium battery is not wasted.

The present invention includes the following embodiments in addition to the above embodiments. a. The switching means may be configured by a semiconductor switch using a semiconductor such as a transistor or FET. b. The switch portion of the line restoration means for opening the telephone line 3 for a predetermined time to restore the line is the telephone line 3 and the relay contact 1
It may be provided between the movable contact 4 and the movable contact 4. c. The telephone 2 may be a push-type telephone or a cordless telephone. d. The line voltage detection circuit 17 may be connected in parallel with the speech network circuit 11 to detect the restoration of the telephone line 3 after returning the DP switch 15 to the closed state. In this case, the line voltage detection circuit 17 does not require detection of high impedance and does not require high withstand voltage, as compared with the circuit of the above-described embodiment, so that the manufacturing cost of the circuit can be reduced.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of a house information reporting system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an operation of the house information reporting system.

[Explanation of symbols]

 A Housing information reporting system 2 Telephone 3 Telephone line 11 Speech network circuit (home information sending circuit) 14 Relay contact (switching means) 15 DP switch (line restoring means) 18 Microprocessor (line restoring means) 21 Handset

Claims (1)

[Claims] 1. A telephone having a handset and capable of communicating with other telephones via a telephone line, and various home information is converted into a home information signal, and home information is sent out to notify a report destination via the telephone line. In the housing information reporting system including a circuit and a switching means for switching the telephone line from the telephone side to the home information transmission circuit side when reporting the housing information, when a high and dry state of the telephone line is detected, A house information reporting system comprising a line restoring means for opening the telephone line for a predetermined time to restore the line.