JPH04208757A - Home equipment control system of public telephone line - Google Patents

Abstract

PURPOSE:To completely prevent stupid mischief by providing a line controller with timers which set signal acceptance time zones and inhibiting acceptance of the signal inputted to the line controlled at the time on the outside of signal acceptance time zones. CONSTITUTION:A line controller 10 is provided with timers T1 to Tn to arbitrarily set a time zone (t) for signal acceptance from a public telephone line 11 as the time zone of AND between signal acceptance effective time zones of timers T1 to Tn and the signal acceptance effective set time zone of a changeover switch 13 with respect to each of home apparatus H1 to Hn. Consequently, the signal acceptance time zone (t) is set, and the signal inputted to the line controller 10 at the time on the outside of this time zone (t) is rejected by timers T1 to Tn, and therefore, each of home equipment H1 to Hm is prevented from being operated against a user's will even if the signal due to stupid mischief or the like is inputted at the time on the outside of the signal acceptance time zone (t).

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a control device for household equipment using a public telephone line. For this reason, there is a control device for home equipment using a public telephone line that is configured to control home equipment via the same line, and it must be equipped with a function to confirm the PIN number, etc., so that the correct PIN number, etc., must be entered. For example, control commands are not accepted.

(c) Problems to be solved by invention However, since public telephone lines are used as a signal transmission medium, there is a drawback that malicious mischief cannot be completely prevented.

In particular, if a mischievous signal is input to a device that produces fire, such as a hot water heater, and the hot water temperature setting is changed, there is a danger of burns due to the hot water coming out.

Additionally, if you enable control of household devices via the public telephone line before going out, you will not be able to switch whether or not to accept signals from outside the home, so signals from the same line will always be available. As a result, the above damage could not be avoided.

(d) Means for Solving the Problems In the present invention, by connecting a public telephone line and the control units of a plurality of household devices via a line control device, the public telephone line can be used as a signal transmission medium to communicate with external In a home appliance control system that makes it possible to control household appliances from within the network, a timer is installed in the line control device to set the signal acceptance time period, and signals input to the line control device are accepted outside of the above signal acceptance time period. It is an object of the present invention to provide a home appliance control system using a public telephone line, which is characterized in that it does not use public telephone lines.

(E) Functions and Effects According to the present invention, the signal reception time period can be set in the home where the device is installed, so that, for example, the signal reception start time can be set to obtain the desired control operation result when the device is at home. If you set the time required for damage can be prevented.

Furthermore, since signals from the public telephone line are accepted during the above-mentioned time period, the user can control home appliances by transmitting signals via the public telephone line during this time period.

(f) Examples Embodiments of the present invention will be described with reference to the drawings.

Fig. 1 shows a schematic configuration of a fully automatic water heater with a bath kettle (old) as an example of domestic equipment according to the present invention. A bath that is connected to a hot water supply light and a bathtub (B) and circulates the bath between the hot water supply function section (20) that supplies general hot water and the bathtub (B) to heat the bath. The pot function part (40) and the hot water supply pipe (21) of the hot water supply function part (20) are branched from the middle, and the hot water from the hot water supply function part (20) is transferred to the bathtub (1"1) through the bath pot function part (40). It is composed of a hot water filling function section (60) that supplies hot water to ) is stored in.

The hot water supply function section (20) mainly includes a hot water supply combustion section 22) and a hot water supply heat exchange section (23).

The hot water combustion section (22) has a built-in hot water burner (25) connected to the gas supply pipe (24), and below it is provided a blower fan (26) that supplies air to the burner (25). Then, the combustion air from the blower fan (26) and the gas from the gas supply pipe (24) are mixed in the burner (25), and the mixture is combusted.

The gas supply pipe (24) is equipped with a solenoid valve (27), and between the solenoid valve (27) and the hot water burner (25) is a solenoid valve (28) for hot water supply, and a solenoid valve (28) with a hot water cabana. Proportional valve (29)
are intervening.

With the above configuration, the amount of heat generated by the hot water supply combustion section (22) can be changed by operating the proportional valve with hot water supply governor (29) and the ventilation fan (26).

The hot water supply heat exchange section (23) includes a water supply pipe (30) and a hot water outlet pipe (2).
1) and a heat receiving pipe (31) interposed between these, and while water from the water supply pipe (30) connected to the water supply flows through the heat receiving pipe (31), the hot water is combusted. Department (
It is heated with combustion gas from 22) and supplied to the kitchen or the like via a hot water tap (21).

Further, the water supply pipe (30) is provided with a water supply temperature sensor (32) that detects the temperature of water supplied from the water supply etc. from upstream, and a flow rate sensor (33) that detects the amount of water supplied to the hot water supply function section (20), that is, the amount of hot water output. ) are arranged in the above order, and the hot water outlet pipe (
21) has a hot water temperature sensor (34) that detects the hot water temperature.
has been set up.

The bath pot function section (40) is composed of a bath water combustion section (41), a bath heat exchange section (42), a circulation pump (43), and a reheating circulation flow path (44). Hot water combustion part (41
) is downstream of the original solenoid valve (27) of the gas supply pipe (24), and is connected to the bath burner (46) connected to the gas supply pipe (24) via the bath solenoid valve (45), and the bath heat exchange part ( The burner (46) burns the gas supplied from the gas supply pipe (24), and the combustion gas is used to heat the bath heat exchange section. (4
2) is heated and the exhaust gas is exhausted to the outside by an exhaust fan (47).

The reheating circulation flow path (44) is provided with a bath water suction opening (48) and a bath water discharge opening (49) on the side wall of the bathtub (B). are connected to the bath intake (50) and bath outlet (51) of the bath water heat exchange section (42), respectively, to form a reheating circulation flow path (44), and by the operation of the circulation pump (43), , the bath in the bathtub (B) is connected between the bath suction opening (48) and the bath water heat exchange part (42).
)-Bath water discharge opening (49)→Bath 11 (B) While circulating in the order of (B), the circulating bath is heated by the bath water heat exchange section (42).

Further, the bath water heat exchange section (42) is provided with a water level sensor (53) for detecting the water level of the bath water in the bathtub (B) and a bath temperature sensor (54).

The hot water filling function section (60) is composed of a hopper (61) and a hot water filling solenoid valve (62), and is configured to transfer hot water from the hot water supply heat exchange section (23) to the bath water heat exchange section (42). The water is supplied to the bathtub (B) through the water.

As shown in FIG. 2, the control unit (C1) connects a human interface (71) of a microcomputer (70) with a water supply temperature sensor (32), a flow rate sensor (33), a hot water supply temperature sensor (34), and a water level sensor ( 53), bath water temperature sensor (
Various sensors such as 54), operation switch (74), hot water temperature setting switch (75)1. Bath water temperature setting switch (
76), bath water level setting switch (77), reheating switch (78), hot water filling heat retention switch (79), etc. In particular, in the present invention, the doujinshi interface (71) The aforementioned line control device (10) is connected.

The output interface (72) is connected to the original solenoid valve (
27), Solenoid valve for hot water supply (28), Proportional valve with 1 hot water supply valve (29), Solenoid valve for bath water (45), Exhaust fan (47),
Actuators such as the circulation pump (43), hot water filling solenoid valve (62), and blower fan (26) are connected, and the memory (73) controls the operation of the fully automatic bath water heater (old). The program to do this is memorized.

FIG. 3 shows the configuration of a home appliance control system (S) using a public telephone line according to the present invention.
) to the control units (CI) to (Cn) of multiple domestic devices (old)-(Hn) installed in the home (H), the public telephone line (11), and the home telephone (12). ) are connected.

The line control device (10) includes a changeover switch (13) that collectively switches whether or not signals can be accepted from the public telephone line (11) to each of the household devices (old) to (Hn), and ) to (Hn), which set the signal acceptance time period (1) from the same line (11) for each timer (T1) to (Tn). The signals input via the public telephone line (11) are transmitted to the control units (C1) to (Cn) of the home appliances (old) to (Hn).
) to control the operation of these household appliances (old) to (In).

In addition, by switching the changeover switch (13), each household device (old) to (Hn) can be grouped together to accept signals from the public telephone line (11) when you are out, etc., and when you are at home, etc. can be configured not to accept the same signal.

Especially the line control equipment! (10) Timer (TI) - (T
n), the signal reception from the public telephone line (11) (=1 time period U) is determined by the signal reception valid time period by the timers (TI) to (Tn) and the signal reception by the changeover switch (13). As the time period when the AND condition is met with the valid setting time period, it can be arbitrarily set for each household device (Ill,) to (tin), and as shown in FIG. 4, the signal reception time period (1) If this is set, even if the changeover switch (13) is enabled, signals input to the line control device (10) outside the signal reception time period (1) will be ignored by the timer (TI).
Since acceptance or rejection is determined by ~ (Tn), even if a signal such as a malicious prank is input outside the signal acceptance time period (1), each household device (old) ~ (tln) will not respond to the user's wishes. It is possible to prevent the user from performing contrary actions.

Note that during the signal reception time period (1), that is, from the signal reception start time (t1) to the signal reception end time (t2), the line control device (10) or the public telephone line ( 11), so users who are away from home can receive signals from the touch-tone phone (1) during this time period (1).
4) etc., each household device (10) to (I n ) can be controlled.

In this way, since the signal reception valid time period is set using the timers (TI) to (Tn), even if you are out of the house, you cannot directly operate the line control device (10) by a person or by operating a switch. It is possible to switch between a time period in which signals are not accepted and a time period in which they are valid, and the user can use the control function of home appliances via a public telephone line with peace of mind.

Furthermore, if a 24-hour timer is used for the timers (T1) to (Tn), if you set the timers (T1) to (Tn) - times, you will not have to reset the timers (T1) to (Tn) every day. I'm done.

In addition, the home telephone (12) is installed in the above-mentioned home, and is equipped with the above-mentioned timers (T1) to (Tn) and the changeover switch (1).
3), the home telephone (12) can be used at all times regardless of the signal acceptance time period (1) or the switching state of the changeover switch (13). .

Next, among the operations of the fully automatic hot water heater with bath kettle (old), we will explain the fully automatic hot water filling and heat retention function.

When a fully automatic command is given manually from the hot water filling heat retention switch (79) to the control unit (C1), the hot water filling solenoid valve (62) opens and the water in the hot water filling function unit (20) is supplied to the hot water filling function unit (6).
0) and the bathtub function section (40). At the same time, the flow sensor (33) senses the flow of water and operates the blower fan (26), which activates the main solenoid valve (27), the solenoid valve for hot water supply (28), and the proportional valve with governor for hot water supply (29). ) and ignite the hot water burner (25) using a spark plug or the like (not shown) to start hot water combustion.

Then, the set temperature set in advance with the bath temperature setting switch (76), the water supply temperature sensor (32), and the flow rate sensor (3
The feedforward control value calculated from the detected value of 3) and the feedback control value calculated from the set temperature and the detected value of the hot water temperature sensor (34) are combined,
The hot water supply combustion unit (22) obtains a combustion amount command value and controls the hot water supply proportional valve with governor (29) and the blower fan (26) to fill hot water at the set temperature.

Then, set the bath water level in advance using the bath water level setting switch (77).
) When the set water level is reached, the water level sensor (53)
senses this and closes the hot water filling electromagnetic valve (62) to stop the hot water injection, and at the same time the flow rate sensor (33) senses the stoppage of the water flow and stops the hot water supply combustion.

Next, the circulation pump (43) is activated, and if the bath water temperature detected by the bath water temperature sensor is lower than the set temperature, the bath combustion section (41) is activated, and when the bath water temperature reaches the set temperature, , a heat-retaining operation is performed to stop the bath water combustion section (41>), and the hot water filling operation is completed here.

Fully automatic operation continues after this, and when the water level of the bath water falls below the set water level of the bath water, the water level sensor (53) detects this and activates the water heater function section (20) and hot water filling function section (BO). Operate to add hot water until the bath water level reaches the set water level.

After the hot water filling operation, the circulation pump (43) is operated at regular intervals to detect the bath water temperature, and if the bath water temperature is lower than the set temperature, the bath combustion section (4I) is operated until the set temperature is reached. It performs a warming operation by activating the . In this case, if the bath water level is not lower than the set water level,
Hot water is not supplied from the water heater function section (2o).

As mentioned above, the fully automatic water heater with bath kettle (old) can be installed in the control unit (c1) by setting the hot water temperature of the hot water supply function part (20), the bath temperature, and the water level of the bath water in advance. Fully automatic hot water filling and heat retention functions can be activated by simply operating a switch.

In addition, the control unit of the fully automatic bath kettle water heater (II+>
CI) is connected to the public telephone line (11) via the line control device (1o), so when you go out, you can connect it to the line control device (10) from Bushpon (14) via the public telephone line (11). By sending a signal and transmitting the signal from the device (1o) to the control unit (C1), the functions of the fully automatic bathtub water heater (old) can be executed.

In particular, in this embodiment, a timer (
TI) to (Tn) are equipped with public telephone lines (
The reception time period (1) for the signal from 11) can be set arbitrarily.For example, as shown in Fig. 4, the reception time period (1) for receiving the signal from 11) can be set arbitrarily.For example, as shown in Fig. If you set the signal reception start time earlier than the scheduled time for returning home, even if the changeover switch (13) is enabled, signals from the public telephone line (11) will be accepted until the signal reception start time. Therefore, it is possible to prevent an operation against the user's will or a dangerous operation due to malicious mischief or the like before the signal reception start time.

Signals from the public telephone line (11) can be accepted from the time the signal reception starts until the end time of the signal reception, so users who are out and about can receive calls from the public telephone line (11) during this period.
14), for example, when a command to fill hot water and keep it warm is input to the line control device (10), this command is transmitted to the bathtub (B
) can be automatically filled with hot water at a set temperature to the set water level to keep it warm.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the configuration of a fully automatic bath kettle water heater, Fig. 2 is an explanatory diagram showing the configuration of a control section of the fully automatic bath kettle water heater, and Fig. 3 is a public telephone line according to the present invention. FIG. 4 is an explanatory diagram showing the configuration of a home appliance control system according to the present invention, and FIG. 4 is a time chart of control signal reception and operation. (S): Domestic equipment control system via public telephone line (C1) to (Cn)/control unit (old) to (tln): Domestic equipment (1) Signal reception time zone (10): Line control device (10) :Public telephone lines (T1) to (Tn) Timer patent applicant Totokiki Co., Ltd. and one other person

Claims (1)

[Claims] 1) A public telephone line (11) and a plurality of domestic devices (H1
) to (Hn) to the control units (C1) to (Cn) via the line control device (10), the public telephone line (11) is used as a signal transmission medium to connect household equipment (H1) from the outside. ) to (Hn), a timer for setting the signal reception time period (t) is provided in the line control device (10) to control the signal reception time period (t). t) A home appliance control system using a public telephone line, characterized in that signals input to the line control device (10) from outside are not accepted.