JPH0568114A - Home information communicating equipment - Google Patents

Abstract

PURPOSE:To prevent the generation of a ring of a bell at the time of switching a transmission mode to a talking mode. CONSTITUTION:At the time of completing the transmission of home information from a home transmission part 4, or executing automatic dialing again because an information request signal or a completion signal from a computer C in a management center has not been received yet, this home information communication equipment A turns off a switch 42 included in a home transmission part 4 by means of a switch control circuit 7 before returning the transmission mode to the talking mode by turning on a relay coil 64 in a mode switching circuit 6. A telephone exchange 12 decides the release of a telephone circuit 11 and returns the voltage polarity of the circuit 11 to the same polarity as voltage polarity held before switching the talking mode to the transmission mode. At this time, a telephone set 2 is disconnected from the circuit 11. The transmission mode is returned to the talking mode by turning on the coil 64 in the circuit 6 after the lapse of a prescribed time determined by a delay circuit 72 and the circuit 11 is connected to the telephone set 2. Since voltage with the same polarity as the voltage polarity held before switching to the transmission mode is impressed to the telephone set 2, a bell in the telephone set 2 is not allowed to ring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to disaster prevention in houses,
The present invention relates to an in-home information communication device for transmitting emergency information such as crime prevention or emergency and meter reading information such as gas, water or electricity to a management center.

[0002]

2. Description of the Related Art Conventionally, by switching from a call mode in which a telephone having an electric bell to a telephone line is connected to a transmission mode in which a home transmission unit is connected to a telephone line, meter reading information such as gas, water or electricity in a house, There is known an in-home information communication device that transmits in-home information such as safety medical information such as disaster prevention, crime prevention, or emergency to a management center via a telephone line. In this in-home information communication device, the in-home transmission unit switches to the transmission mode before transmitting the in-home information, and the in-home transmission unit transmits the in-home information to switch to the communication mode.

[0003]

In general, when a calling signal is sent from the home transmission unit or the telephone set of the calling side to the telephone exchange after the off-hook, and the selection signal is transmitted based on the telephone number of the called party, the telephone exchange receives the call. When a call signal is sent to the other party's telephone, etc., and when the called party responds (off-hook) to this, the polarity of the voltage is reversed for the telephone line of the calling side, and communication and call are made possible. To do. Also,
When the telephone line is opened (on-hook) after the communication and the call are finished, the telephone exchange detects that the telephone line is opened and restores the polarity of the voltage of the telephone line on the calling side. Therefore, in the conventional home information communication device,
After the home information has been sent to the management center, the mode switching unit such as a relay immediately switches from the transmission mode to the call mode. The voltage of opposite polarity will be applied, and the electric bell of the home phone will ring.

Next, when the telephone exchange detects that the line has been opened by switching from the transmission mode to the call mode and restores the voltage polarity of the telephone line to its original value, the bell of the telephone at home will ring again. I will end up. Therefore, there is a method of adjusting the movable piece of the electric bell as a method of preventing the ringing of the electric bell of the telephone at the end of transmission of such in-home information.
Adjusting all phones was difficult. An object of the present invention is to provide a home information communication device that prevents ringing of a bell of a telephone when switching from a transmission mode to a call mode.

[0005]

According to the present invention, there is provided a telephone having a bell that rings when the voltage polarity of a telephone line is reversed, and a home transmission unit for transmitting home information via the telephone line.
Before transmitting the in-home information from the in-home transmission unit, the in-home transmission unit is switched to a transmission mode for connecting to the telephone line, and after the in-home information is transmitted from the in-home transmission unit, the telephone is connected to the telephone line. And a mode switching unit for switching to a call mode to connect to, the home transmission unit has a switch for opening and closing the connection with the telephone line,
The mode switching unit opens the switch at least after transmitting the in-home information from the in-home transmission unit, and switches from the transmission mode to the call mode until the voltage polarity of the telephone line is reversed after the switch is opened. The technical means of delaying the switching of is adopted.

[0006]

According to the present invention, when the in-home information is transmitted from the in-home transmission section, the telephone line and the in-home transmission section are connected by switching from the call mode to the transmission mode by the mode switching section. Then, when the call is received by the other party, the voltage polarity of the telephone line is reversed by the telephone exchange. Then, at least when the transmission of the in-home information from the in-home transmission unit is completed, the mode switching unit opens the switch provided in the in-home transmission unit. For this reason, since the state is the same as the state in which the line is released, the telephone exchange determines that the line is released and reverses the voltage polarity of the telephone line. Then, the telephone line and the telephone are connected by switching from the transmission mode to the call mode by the mode switching unit. At this time, since the voltage having the same polarity as the voltage polarity before switching to the transmission mode is applied to the telephone, the bell does not ring.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A home information communication device of the present invention is shown in FIGS.
A description will be given based on an example shown in FIG. FIG. 1 is a diagram showing a terminal device of a home information communication device, and FIG. 2 is a diagram showing a home information communication device. As shown in FIG. 2, the in-home information communication device A is a computer of a management center via a telephone line network L including a telephone line 11 and a telephone exchange 12 for in-home information from a terminal device 1 provided in a plurality of houses. It is a system for transmitting to C. When the caller sends a selection signal to the telephone exchange 12 via the telephone line 11, the telephone exchange 12 sends a calling signal to the telephone line 11 of the called party and detects that the called party has answered. Then, the voltage polarity of the telephone line 11 on the calling side is reversed, and when the telephone line 11 is opened (on-hook) after the call between the calling party and the other party ends, the telephone line 11 is detected and then the telephone line is opened. The voltage polarity of 11 is restored.

[0008] The management center has information on meter reading of gas, water, electricity, etc. transmitted from a plurality of terminal devices 1, crime prevention,
Based on emergency information such as disaster prevention or emergency, it reports to a predetermined organization such as a gas company, water department, electric power company, police station, fire department or hospital, or dispatches personnel to the house that has transmitted. Then, when the terminal device 1 and the telephone line 11 are connected to each other, the computer C of the management center transmits an information request signal requesting that the in-home information be transmitted from the terminal device 1. Further, when the correct home information is transmitted from the terminal device 1, the computer C of the management center sends a completion signal notifying the terminal device 1 that the correct home information has been transmitted. The computer C of the management center transmits a retransmission request signal (PB signal: 0 code, for example) requesting that the in-home information be transmitted from the terminal device 1 again when incorrect in-home information is transmitted from the terminal device 1. You may.

Next, the terminal device 1 will be described in detail with reference to FIG. The terminal device 1 is connected to the telephone line 11 and the telephone 2, and incorporates an input / output circuit 3, a home transmission unit 4, and a mode switching unit 5.

The telephone 2 is, for example, a 600 type telephone or 60 telephone.
A telephone main body 21 having a tapper type magnet electric bell or a plunger type magnet electric bell (hereinafter referred to as a bell) and a transmitter as in the case of a type 1 telephone or the like, which rings by receiving a call signal from a telephone station And a handset 22 including a receiver.

The input / output circuit 3 is connected to a gas meter meter 31, a gas leak sensor 32, a crime prevention sensor 33, an emergency button 34, a gas cutoff valve 35, and the like. The gas meter meter 31 detects the amount of gas supplied to a gas appliance in a house. For example, the number of revolutions of a magnet attached to a rotating body that rotates according to the gas flow rate is detected by a magnetic sensor element to measure the gas flow rate. A signal (pulse signal) is sent to the input / output circuit 3. It should be noted that the input / output circuit 3 may be made to input a signal relating to the flow rate from a meter meter such as water or electricity.

The gas leak sensor 32 is mounted on the ceiling or floor of a room with a gas appliance, and sends a gas leak signal of a predetermined voltage (for example, 12 V) to the input / output circuit 3 when a gas leak occurs. The security sensor 33 is attached to a window, a door, a door, or the like, and when the user selects the outing mode or the sleepover mode, when the window, the door, the door, or the like opens, the security sensor 33 determines that the security is abnormal. An abnormal signal is sent to the input / output circuit 3. The emergency button 34 operates by being operated (turned on) by the user, and when turned on, sends an emergency medical signal to the input / output circuit 3. The gas cutoff valve 35 is attached to a gas supply path (not shown) for supplying gas to a gas appliance (not shown) provided in the house, and opens when the input / output circuit 3 turns on the gas supply path. When turned off, the gas supply path is closed.

The home transmission section 4 includes a dial transmission circuit 41,
It is composed of a switch 42, a speech network circuit 43, a diode bridge circuit 44, a ringing signal detection circuit 45, a line use detection circuit 46 and the like. The dial transmission circuit 41 has a well-known structure, and a circuit for transmitting a dial pulse (DP) signal to the telephone line 11 by turning on / off a loop of the line by a switch 42 and a telephone network 11 via a speech network circuit 43. And a circuit for transmitting a push button (PB) signal. The switch 42 is, for example, a relay, a semiconductor switching element, or the like, and is a switch for dial pulse signal transmission which is controlled by the dial transmission circuit 41 to turn on / off the loop of the line, and also the telephone line 11 and the home transmission unit 4 are provided. It is a switch that opens and closes the connection with. The speech network circuit 43 has a well-known structure and is a circuit for converting a received voice and a transmitted voice. The call signal detection circuit 45 has a well-known configuration,
It is a circuit that detects whether or not a calling signal is received from the other party. The line use detection circuit 46 has a well-known configuration and is a circuit that detects whether the telephone 2 is being used, that is, whether or not a telephone call is in progress.

The mode switching section 5 is composed of a mode switching circuit 6 and a switching control circuit 7. The mode switching circuit 6 includes relay switches 61 and 62 and relay coils 63 and 64 that open and close these relay switches 61 and 62. When the relay coil 63 is turned on, the mode switching circuit 6 has relay switches 61 and 62.
Connects the home transmission unit 4 to the telephone line 11 and switches to the transmission mode. In the mode switching circuit 6, when the relay coil 64 is turned on, the relay switches 61 and 62 connect the telephone 2 to the telephone line 11 and switch to the call mode.

The switching control circuit 7 inputs in-house information (gas flow rate signal, gas leak signal, crime prevention abnormality signal, emergency medical care signal, etc.) from the input / output circuit 3 and, based on the stored program, the in-home transmission section. 4. Control the mode switching circuit 6 and the gas cutoff valve 35. In addition, the switching control circuit 7
A control circuit 71 for turning off the switch 42 before returning from the transmission mode to the call mode, and a delay circuit 72 for delaying switching by the mode switching circuit 6 by a predetermined time (for example, 3 seconds to 10 seconds) after turning off the switch 42. Have. The predetermined time determined by the delay circuit 72 is
It suffices if there is a time from when the telephone exchange 12 detects that the line has been opened until the voltage polarity of the telephone line 11 is reversed.

The operation of the terminal device 1 will be described with reference to FIGS. FIG. 3 is a flowchart showing an example of the mode switching control of the switching control circuit 7. First, it is first determined whether or not it is the transmission time of the gas metering data set for each house (step S1). If the determination result of step S1 is Yes, control of step S3 is performed. When the result of the determination in step S1 is No, it is determined whether or not emergency information such as a gas leak signal, a crime prevention signal or an emergency medical signal is read (step S2).
If the determination result of step S2 is No, the control of step S1 is performed. If the result of the determination in step S2 is Yes, the output of the line use detection circuit 46 is read to determine whether or not the telephone 2 is in use.
That is, it is determined whether or not a call is in progress (step S3).
If the determination result of step S3 is Yes, the control of step S1 is performed. When the result of the determination in step S3 is No, the output of the ringing signal detection circuit 45 is read to determine whether or not the incoming call is being made (step S).
4). If the determination result of step S4 is Yes, control of step S1 is performed. If the determination result in step S4 is No, the relay coil 63 is turned on to disconnect the telephone 2 from the telephone line 11, connect the home transmission unit 4 to the telephone line 11, and switch to the transmission mode (step S5), it is determined whether or not, for example, 3 seconds have elapsed since switching to the transmission mode (step S6). If the determination result of step S6 is No, control of step S6 is performed. Also, step S
If the result of the determination at 6 is Yes, the telephone number of the computer C of the management center is automatically dialed to call the computer C of the management center (step S7).

Then, it is judged whether or not an information request signal (PB signal: 0 code, for example) is received from the computer C of the management center (step S8). If the determination result in step S8 is No, it is determined whether, for example, 45 seconds have elapsed since the end of automatic dialing (step S9). The determination result of step S9 is N
In the case of o, the control of step S8 is performed. If the determination result of step S9 is Yes, the switch 42
Is turned off (step S10), and it is determined whether or not a predetermined time (for example, 3 seconds to 10 seconds) has passed since the switch 42 was turned off (step S11). If the determination result of step S11 is No, control of step S11 is performed. Moreover, the determination result of step S11 is Yes.
In this case, the relay coil 64 is turned on to disconnect the home transmission unit 4 from the telephone line 11, connect the telephone 2 to the telephone line 11, and switch to the call mode (step S12). For example, 1
It is determined whether 0 second has elapsed (step S1).
3). If the determination result of step S13 is No, control of step S13 is performed. Also, step S1
When the determination result of 3 is Yes, the control of step S1 is performed.

If the result of the determination in step S8 is Yes, the home information is transmitted to the computer C of the management center based on the transmission protocol flowchart (step S8).
14), it is determined whether or not a completion signal (PB signal: for example, * code) is received from the computer C of the management center (step S15). If the determination result in step S15 is No, it is determined whether or not, for example, 3 seconds have elapsed since the transmission of the in-home information was completed (step S16). If the determination result of step S16 is No, control of step S15 is performed. If the determination result of step S16 is Yes, step S10
Control.

Further, the determination result of step S15 is Yes.
In the case of, the switch 42 is turned off (step S1
7), a predetermined time (for example, 3
It is determined whether or not 10 seconds have passed (step S18). If the determination result in step S18 is No, control in step S18 is performed. If the determination result of step S18 is Yes, the relay coil 6
4 is turned on, the home transmission unit 4 is connected to the telephone line 1
1, the telephone 2 is connected to the telephone line 11 to switch to the call mode (step S19), and the transmission control ends.

As described above, this home information communication device A
Of the mode switching circuit 6 when the transmission of the in-home information from the in-home transmission unit 4 is completed or when the automatic dialing is performed again because the information request signal or the completion signal from the computer C of the management center has not been received. Relay coil 6
Before the switch 4 is turned on to return from the transmission mode to the call mode, the switch control circuit 7 turns off the switch 42 provided in the home transmission unit 4. For this reason, in the in-home transmission unit 4, the state is the same as when the line is released. Therefore, the telephone exchange 1
2 determines that the line has been released and returns the voltage polarity of the telephone line 11 to the same polarity as that before switching to the transmission mode. At this time, since the telephone 2 and the telephone line 11 are not connected, the bell in the telephone 2 does not ring.
Then, after a predetermined time (for example, 3 seconds to 10 seconds) determined by the delay circuit 72 has elapsed, the mode switching circuit 6
By turning on the relay coil 64, the transmission mode is returned to the call mode, and the telephone line 11 and the telephone 2 are connected. At this time, a voltage of the same polarity as the voltage polarity before switching to the transmission mode is applied to the telephone 2,
The electric bell in the telephone 2 does not ring.

(Modification) In the present embodiment, the switch 42 is turned off at the end of the transmission of the in-home information and the switching to the call mode is delayed for a predetermined time. It is also possible to provide a detection unit that detects that the exchange 12 has reversed the voltage polarity of the telephone line 11, and switch to the call mode when the detection unit detects that the voltage polarity of the telephone line 11 has been reversed.
Furthermore, a semiconductor switching element may be used for the mode switching circuit 6. The present invention may be used for a medical home information communication device that transmits emergency information such as emergency in a hospital room to a nurse center.

[0022]

As described above, the present invention can prevent the electric bell of the telephone from ringing even when the transmission mode is switched from the transmission mode to the call mode when the transmission of the home information is completed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a terminal device.

FIG. 2 is a block diagram showing a home information communication device.

FIG. 3 is a flowchart showing an example of mode switching control of a switching control circuit.

[Explanation of symbols]

 A Home information communication device 2 Telephone 4 Home transmission unit 5 Mode switching unit 11 Telephone line 12 Telephone exchange 42 Switch

Claims (1)

[Claims] 1. A telephone having an electric bell that rings when the voltage polarity of a telephone line is reversed, (b) A home transmitting unit that transmits home information via the telephone line, and (c) The home transmitting unit. From before to transmit the in-home information, after switching the in-home transmission unit to a transmission mode for connecting to the telephone line, and after transmitting the in-home information from the in-home transmission unit,
A mode switching unit for switching the telephone to a call mode for connecting to the telephone line; the in-home transmission unit has a switch for opening and closing the connection with the telephone line; and the mode switching unit at least the in-home transmission. The switch is opened after transmitting the in-home information from a unit, and switching from the transmission mode to the call mode is delayed until the voltage polarity of the telephone line is inverted after the switch is opened. Home information communication device.