JPH071945B2 - Analog 2-core remote controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application>
The present invention relates to an analog two-core remote controller that connects a remote controller for remote control of these by a two-core transmission cable.

<Prior Art and Its Problems> A first conventional two-core remote controller in which a main body controller attached to a main body device to be controlled such as a water heater and one or more remote controllers are connected by a two-core transmission cable.
The problem is that since the digital signal transmission system using a microcomputer or the like is adopted, the device as a whole becomes large and complicated, and therefore expensive. The second problem is the case of a simple two-core remote controller unlike the above, but as seen in some cases, the input is one variable resistor, two switches, the output is two lamps, Even if the system has only one remote controller and therefore can supply hot water to a plurality of places, it is inconvenient because the operation switch and the temperature control can be operated only in one place such as the kitchen or the bathroom.

The present invention is a first problem of the digital signal transmission system, that is, an analog two-core remote controller using a complete analog signal transmission system that can eliminate the complexity and cost of the device, and the second problem. A device that can solve the problem, that is, a microcomputer in the main body controller such as operation switch and temperature setting operation as well as other heating, heat retention, etc. in a kitchen, bathroom or other multiple places, although it is a simple method. It is an object of the present invention to provide an analog two-core remote control device which can be implemented by using a simple switch, a variable resistance circuit, or the like, as a device required to start a plurality of composite control functions performed by the main body device. To do.

<Means for Solving the Problems> In order to achieve the above object, an analog two-wire remote control device of the present invention includes a main body controller attached to a main body device configured to have a plurality of composite functions, and the above main body. An analog two-core remote control device comprising a plurality of remote controls installed at different locations from a controller and a single two-core transmission cable connecting each of the main body controller and the remote control, comprising: (a) ． The main body controller inputs (a) a DC power supply, (b) a constant voltage circuit, and (c) an analog operation signal from the remote controller, starts a required control process based on the analog operation signal, and sets the state of the control process as described above. A microcomputer that outputs an analog drive signal to the remote controller for the purpose of causing the lamp / buzzer in the remote controller to emit a display sound. (D) When the analog operation signal is input to the microcomputer, it functions as a constant current circuit, It is composed of an input / output circuit that works as a variable constant voltage circuit when a drive signal is output to a remote controller, and (e) a main body controller terminal that serves as a transfer point for both signals between the main body controller and the remote controller. And (b). The remote controller includes: (a) a resistor including a plurality of resistors including a variable resistor and one or more switches connected so that one or more of the resistors can be short-circuited by a switch ON.
In addition to being composed of a switch circuit, the effective resistance of the entire circuit is set by turning on / off the switch and adjusting the resistance of the variable resistor, and a constant current supplied from the input / output circuit is passed through this effective resistance. An analog operation signal generation circuit configured to generate an analog operation signal, and (b) a voltage detection and lamp drive circuit that receives the analog drive signal and performs determination and processing, a lamp blinking circuit,
Consists of various indicator lamps and other circuits and elements,
An analog drive signal processing circuit, (c) a remote controller terminal corresponding to the main body controller terminal via a two-core cable for analog signal transmission, and (d) a remote controller terminal connected to an alternating current side terminal to a direct current side terminal A bridge-type rectifier circuit connecting the above-mentioned analog drive signal processing circuit to the analog drive signal processing circuit, and (c). The analog operation signal generation circuit, the microcomputer, and the analog drive signal processing circuit respectively generate a plurality of composite analog operation signals so as to correspond to the structure of the plurality of composite functions of the main body device, (B) Based on the analog operation signal, the main unit is controlled as required, and the analog drive signal is transmitted. (C) Based on the analog drive signal, the required multiple composite lamp display or buzzer display And (d). The microcomputer of the main body controller and the input / output circuit cooperate with each other to: (a) switch the input period of the analog operation signal to the microcomputer and the output period of the analog drive signal from the microcomputer at a constant cycle. As a result, both of these signals are transmitted through a single two-core transmission cable, and (b) the input and output to and from each remote controller are processed in a time division manner. A featured analog 2-core remote controller.

<Operation> In the analog two-core remote controller of the present invention, the signals exchanged between the remote controller and the main body controller are both complete analog signals generated by the input / output circuit in the main body controller and the variable resistance circuit in the remote controller. It functions as an analog signal transmission system, and as compared with the conventional two-core remote control device of digital signal transmission system, the complexity of the circuit is eliminated and the manufacturing cost of the device is remarkably low. Further, the analog two-wire remote control device of the present invention generates an analog operation signal by a simple variable resistance circuit and an input circuit. Therefore, the device is extremely simple, but of course, operation switches and temperature control operations, as well as other additional operations are performed. , Operations such as heat retention necessary to start a plurality of complex control functions performed by the microcomputer in the main body controller on the main body apparatus can be reliably performed at a plurality of places.

<Example> An analog two-core remote control device of the present invention will be described with reference to the drawings illustrating an example thereof. FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a flow chart showing the operation of this embodiment, FIG. 3 is a graph showing the type of voltage of an analog operation signal, and FIG. 4 is an analog drive signal. It is a graph showing the type of voltage.

In the following description relating to FIG. 1, a remote controller used for hot water supply in a kitchen or the like (hereinafter, the remote controller is abbreviated as a remote controller) is temporarily called a main remote controller, and a remote controller used for a bath is called a flow remote controller. .

Further, in the following description, the three modes of hot water supply, reheating, and heat retention are divided, and the description will proceed in that order.

First, the hot water supply mode will be described. First flow remote control
It is assumed that the 20 and the main remote controller 20 'are about to send an analog operation signal to the microcomputer 40 of the main body controller, and the main body controller 30 is waiting for the arrival of the same signal (Fig. 2). Flow chart of the
Step 200). That is, in detail, these remote controllers 20 and 20 'are the input / output circuits of the main body controller.
33 and 33 '(these circuits are in the mode in which the constant current is intended to be supplied to the remote controller at this time, that is, the input circuit mode), and the analog operation signal generation circuit. In 25 and 25 ', the product of the total effective resistance of these circuits 25' and 25, which is set by turning on and off various switches and adjusting the variable resistor, generates the required analog operation signal voltage, Suppose you are trying to reach 40. In this state, when the operation switch 6 or 6'of the flow remote controller 20 or the main remote controller 20 'is turned on, the total effective resistance of the analog operation signal generating circuit 25 or 25' of the remote controller is 1 or 1 ', respectively. And an analog operation signal based on this resistance value is generated by the circuit 25 or 25 ',
This analog operation signal passes through the input / output circuit 33 or 33 'of the main body controller 30, and further, the microcomputer input signal line
It is transmitted to the microcomputer 40 via 34 or 34 '. The voltage value of the analog operation signal transmitted to the microcomputer 40 is the third
It is V ₁ or V ₁ ′ shown in the figure. In this way, the microcomputer 40, which receives an analog operation signal by turning on the operation switch from one of the remote controllers, starts operation control for the main unit,
The status of this operation start the remote controller 20 or 20 'Problem to, and with a purpose of the lamp display, voltage values v ₁ and v ₁ of the analog drive signal shown in FIG. 4' a microcomputer output signal lines 35 and 35 ' Via the input / output circuit 33 and
33 '(these circuits are in variable constant voltage supply mode, ie, output circuit mode at this point),
Send to the flow remote control 20 and the main remote control 20 '. Then, the above signal voltage v ₁ is passed through the bridge rectifier circuit 9 in the flow remote controller 20 to the analog drive signal processing circuit.
In the same circuit, first, switching
The voltage is applied to the constant voltage diode 12 via the transistor 10 and the resistor 11, but since v ₁ > v _ZD12 (where v _ZD12 is the operating voltage of the constant voltage diode 12), the transistor 10 is turned on, The signal voltage v ₁ is applied to the resistor 14 and the next constant voltage diode 13 (whose operating voltage is V _ZD13 ). Therefore, the constant voltage V _ZD13 is established and applied to the voltage detection and lamp drive circuit 16 together with the signal voltage v ₁ reached via the resistor 15. The circuit 16 compares the voltages, and as a result, the operation lamp 18 is driven (lighted), and at the same time, the lamp blinking circuit 17 is in the lamp blinking state. Also in the main remote controller 20 ', the operation lamp 18' lights up in the same manner as above (the above is the flowchart of FIG. 2, step 201 (or 221), 202, 203, 221, 2).
twenty two).

Then, with the main remote controller 20 '(the operation switch 6'is OF
When the Q temperature control variable resistor 5'is adjusted to a required value, the analog operation signal based on this is passed through the input circuit 33 'of the main body controller 30 and further through the microcomputer input signal line 34'. And transmitted to the microcomputer 40. At this time, the voltage of the analog operation signal transmitted to the microcomputer 40 is
V ₄ ′ to V ₅ ′ shown in FIG. The microcomputer 40 that has received the operation signal based on the Q temperature control determines whether the combustion control should be performed (YES) or not (NO) for the main unit that has already started the operation control as described above, and determines NO. For example, if the current state is maintained and YES is determined, combustion control is newly started for the main body device, and the state is notified and displayed to the main remote controller 20 'of the Q temperature control activation source (that is, the lamp circuit). The voltage value v ₂ ′ of the analog drive signal shown in FIG. 4 is output to the output signal line 35 ′, the output circuit 33 ′ (and then the main remote controller 20 ′), the bridge rectifier circuit 9 ′, the switching Via the transistor 10 ', then the resistors 14', 15 ', the voltage detection and lamp drive circuit 16', to turn on the combustion lamp 21 '(above,
Flowchart of FIG. 2, steps 204, 205, 206, 20
7).

The second case of the additional heating mode will be described. First, on the flow remote control 20, (turn off the operation switch 6)
When the additional heating switch 7 is turned on, the voltage V _{2 of the} analog operation signal shown in FIG. 3 is input to the microcomputer 40. In response to this, the microcomputer 40 performs the required control for reheating on the main body device, and as a result, outputs the voltage v ₃ ′ of the analog drive signal shown in FIG. 4 to the main remote controller 20 ′. , The lamp blinking circuit 17 'is operated to blink the operation lamp 18', and at the same time, the analog remote control signal voltage v ₂ shown in FIG. The operation lamp 18 is operated to blink, and the reheating lamp 19 is turned on. Here, the flow remote control 20
When all the switches of the analog operation signal generation circuit 25 are turned off and the analog operation signal by the F temperature control variable resistor 5 (and the resistors 1, 2, 3, 4) is transmitted to the microcomputer 40 (the transmission signal to the microcomputer is The voltage is V ₄ ~ shown in FIG.
The condition of the above-mentioned additional heating mode is maintained until V ₅ ), F is boiled, the additional heating lamp 19 is turned off when F is boiled, and the microcomputer 40 directs the main remote controller 20 ′ and the flow remote controller 20 respectively. Analog drive signal voltage v ₂ ′
(Or v ₁ ′) and v ₁ are output, and the blinking operation lamps of both remote controllers are returned to the lighting state (above, the flowchart of FIG. 2, steps 208, 209, 210, 211, 212, 213).

Third, the case of the heat retention mode will be described. Flow remote control
When the heat retention switch 8 is turned on at 20 (only the resistors 1, 2, and 3 are alive), the voltage V ₃ of the analog operation signal shown in FIG. ₃ is input to the microcomputer 40, and the microcomputer accordingly responds to heat retention. The necessary control is applied to the main unit, and as a result, v ₃ ′ and v ₃ are output to the main remote controller 20 ′ and the flow remote controller 20, respectively, and the main remote controller 20 ′ activates the lamp blinking circuit 17 ′. Flash the operation lamp 18 ',
The flow remote control 20 blinks the operation lamp 18 and lights the heat retention lamp 22. Here, when all the switches of the analog operation signal generation circuit 25 are turned off and the analog operation signal from the F remote control 20 by the F temperature control variable resistor 5 (and resistors 1, 2, 3, 4) is transmitted to the microcomputer 40, The current state is maintained until boiling, but when F is boiling, the microcomputer 40 outputs the analog drive signal v ₄ ′ shown in FIG. 4 to the main remote controller 20 ′ and the buzzer drive circuit 22 ′ is turned on. When the timer is up, the heat retention operation is restored (the above is the flowchart of FIG. 2, steps 214, 215, 216, 217,
218, 219, 220).

The microcomputer 40 cooperates with the input / output circuits 33 and 33 'to keep the input period of the analog operation signal (to the microcomputer 40) and the subsequent output period of the analog drive signal (from the microcomputer 40) constant. By switching at a cycle, both of these signals are transmitted by a single two-core transmission cable D or E.
The remote control 20
And 20 'are processed in a time division manner.

In the above-mentioned embodiment, several examples of the present invention have been shown. However, in addition to this, in practice, for example, in the one-can-two-channel method, during the activation of the additional heating or heat retention mode from the flow remote controller 20 side. There are cases where the temperature control on the main remote control side is automatically set to a high temperature. In this case, the fact that the hot water is hot can be displayed by blinking the operation lamp. Alternatively, it is also possible to use a buzzer to display the boiling water of the bath. Furthermore, in the one-can-two-water-channel system, it is also possible to display the water leakage of the can body of the main body device using a buzzer of a remote controller.

In the present embodiment, the case of the combination of the hot water supply remote controller and the bath remote control has been described, but the present invention can also be applied to the case of hot water supply + heating, bath + heating, etc. of the 1 can 2 water channel system.
It can also be applied to complex models such as can 3 canals.

Then, in the above embodiment, the case where the variable resistor of the remote controller is used for the purpose of temperature control has been described, but this variable resistor is for generating the analog operation signal for requesting the setting of the timer or the flow rate of the water channel to the microcomputer. Also available for.

The effect of the analog two-core remote controller of the present invention is that the remote controller can use the analog operation signal generated by using the simple resistance circuit and constant current circuit to cause the microcomputer of the main body controller to start a plurality of complex functions. Besides, it also includes many effects as described below. The first of them
The effect of is that the linearity of the signal is improved because the analog operation signal generated by the remote controller is generated by the constant current circuit and the variable resistance circuit including the variable resistance and the switch. The second effect is that the analog drive signal is Since the constant voltage is variable, the brightness of the driven lamp and the buzzer sound can be made constant. The third effect is that hot water can be turned on and off at multiple locations (for example, two locations), and the heating and heat retention functions are activated. The fourth effect is that the two-core cable that connects each remote controller and the main body controller can be made non-polar by using the bridge rectifier circuit. The fifth effect is that the main remote controller 20 'and the flow remote control 20 (operation switch 6'on each remote control,
By determining the analog operation signal voltages V ₁ and V ₁ ′ (see FIG. 3) based on the resistance values of the resistors 1 ′ and 1 (obtained by turning on 6) based on the memory that the microcomputer already has, You can identify which type of remote control is connected to terminals 43-44 and 48-49 of the controller,
Therefore, no matter which main body controller terminal the remote controller is connected to, it will not be excluded as an erroneous connection.

<Effect> The first effect of the analog two-core remote controller of the present invention is that all signals exchanged between the main body controller and the remote controller are analog signals, which is compared with the conventional two-core remote controller of digital signal transmission system. Then, the complexity of the circuit is eliminated, and the manufacturing cost of the device is remarkably low. The second effect is that although the analog two-wire remote control device of the present invention is of a simple type, operation switches and tone setting operations can be performed at a plurality of places, as well as other microcomputers for reheating, heat retention, etc. The operations required to start the multiple composite control functions performed on the main unit are
It can be implemented by using a constant current circuit and simple switches and variable resistance circuits. Due to the above-described second effect, the application of the present invention is not limited to hot water supply + bath, hot water supply + heating, bath + heating, etc. of 1 can 2 water channel system, and other 1
It can be expanded to complex models such as can 3 canals. A third effect is that the analog two-wire remote control device of the present invention improves design and quality, for example, the analog operation signal of the remote control device of the present invention has a constant current circuit, a switch and a variable resistance circuit as described above. Since it is due to coupling, it is expected that the linearity of the signal will be improved and that the brightness and buzzer sound of the lamp driven by this will be constant because the analog signal is a variable constant voltage. .

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a flow chart showing the operation of this embodiment, FIG. 3 is a graph showing the type of voltage of an analog operation signal, and FIG. 4 is an analog drive signal. It is a graph showing the type of voltage. 9, 9 ': Bridge type rectification circuit 16, 16': Voltage detection and lamp drive circuit 17, 17 ': Lamp blinking circuit 20, 20': Flow remote control, main remote control 25, 25 ': Analog operation signal generation circuit 26, 26 ': Analog drive signal processing circuit 30: Main unit controller 31: DC power supply 32: Constant voltage circuit 33, 33': Input / output circuit 40: Microcomputer 41-42, 46-47: Main remote controller, flow remote controller terminal 43-44, 48-49: Controller terminal D, E: 2-core transmission cable

Claims (1)

[Claims] 1. A main body controller attached to a main body apparatus configured to have a plurality of complex functions, a plurality of remote controllers installed in different locations from the main body controller, the main body controller and the remote controller. An analog two-core remote control device comprising a single two-core transmission cable for connecting each of the two, and (a). The main body controller inputs (a) a DC power supply, (b) a constant voltage circuit, and (c) an analog operation signal from the remote controller, starts a required control process based on the analog operation signal, and sets the state of the control process as described above. A microcomputer that outputs an analog drive signal to the remote controller for the purpose of causing the lamp / buzzer in the remote controller to emit a display sound. (D) When the analog operation signal is input to the microcomputer, it functions as a constant current circuit, It is composed of an input / output circuit that works as a variable constant voltage circuit when a drive signal is output to a remote controller, and (e) a main body controller terminal that serves as a transfer point for both signals between the main body controller and the remote controller. And (b). The remote controller includes: (a) a resistor including a plurality of resistors including a variable resistor and one or more switches connected so that one or more of the resistors can be short-circuited by a switch ON.
In addition to being composed of a switch circuit, the effective resistance of the entire circuit is set by turning on / off the switch and adjusting the resistance of the variable resistor, and a constant current supplied from the input / output circuit is passed through this effective resistance. An analog operation signal generation circuit configured to generate an analog operation signal, and (b) a voltage detection and lamp drive circuit that receives the analog drive signal and performs determination and processing, a lamp blinking circuit,
Consists of various indicator lamps and other circuits and elements,
An analog drive signal processing circuit, (c) a remote controller terminal corresponding to the main body controller terminal via a two-core cable for analog signal transmission, and (d) a remote controller terminal connected to an alternating current side terminal to a direct current side terminal A bridge-type rectifier circuit connecting the above-mentioned analog drive signal processing circuit to the analog drive signal processing circuit, and (c). The analog operation signal generation circuit, the microcomputer, and the analog drive signal processing circuit respectively generate a plurality of composite analog operation signals so as to correspond to the structure of the plurality of composite functions of the main body device, (B) Based on the analog operation signal, the main unit is controlled as required, and the analog drive signal is transmitted. (C) Based on the analog drive signal, the required multiple composite lamp display or buzzer display And (d). The microcomputer of the main body controller and the input / output circuit cooperate with each other to: (a) switch the input period of the analog operation signal to the microcomputer and the output period of the analog drive signal from the microcomputer at a constant cycle. As a result, both of these signals are transmitted through a single two-core transmission cable, and (b) an analog two-core configured to process input / output with each remote controller in a time-division manner. Remote control device.