JPH03280695A - Analog two-core remote controller - Google Patents

Abstract

PURPOSE:To avoid a complicated and expensive device by generating and sending an analog operation signal from an analog operation signal generating circuit, a microcomputer and an analog drive signal processing circuit, applying required control to a main body device, sending the analog drive signal and applying required display. CONSTITUTION:Analog operation signal generating circuits 25, 25', a microcomputer 40 and analog drive signal processing circuits 26, 26' generate and send an analog control signal respectively so as to correspond to the control signal of plural and composite functions of the main body device respectively, required control is applied to the main body device based on the signal, an analog drive signal is sent and display of lamps 18, 19, 22, 18', 21' is implemented based on the signal. Thus, the signal exchanged between remote controllers 20, 20'-main controller 30 is a signal generated through variable resistance circuits 5, 5' in the remote controllers 20, 20' and input output circuits 33, 33' in the main body controller 30, and the controller acts like the complete analog signal transmission system. Thereby, complexity of the circuit is avoided and the manufacture cost of the circuit is reduced.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a main body device such as a water heater, a bath kettle, or an air conditioner;
The present invention relates to an analog two-core remote control device that is connected to a remote control for remote control using a two-core transmission cable.

<Prior art and its problems> The first of the conventional 2-core remote control devices in which a 2-core transmission cable connects a main unit controller attached to a main unit to be controlled, such as a water heater, and one or more remote controllers.
The problem with this is that because it uses a digital signal transmission method using a microcomputer, the entire device is large and complicated, and therefore expensive.

The second problem, different from the above, is the case of a simple two-core remote control device, but as seen in some cases, the input is one variable resistor, two switches, the output is two lamps,
There is only one remote control, so even if the system can supply hot water to multiple locations, it will only require one remote control, such as the kitchen or bathroom.
It is inconvenient that the operation switch and temperature control settings can only be operated in a few places.

The present invention is an analog two-core remote control device using a complete analog signal transmission method that can eliminate the first problem caused by the digital signal transmission method, that is, the complexity and cost of the device, and the second problem. A device that can solve this problem, that is, a device that can be used in multiple places such as the kitchen or bathroom, even though it is a simple method, can be used not only to operate the operation switch and temperature control settings, but also to perform other functions such as reheating and keeping warm. The purpose of the present invention is to provide an analog two-core remote control device that can perform the necessary devices to start multiple and complex control functions performed on the main unit by using a simple switch, variable resistance circuit, etc. do.

<Means for Solving the Problems> In order to achieve the above object, the analog two-core remote control device of the present invention includes a main unit controller attached to a main unit configured to have multiple and complex functions, and a main unit configured to have a plurality of complex functions. An analog 2-core remote control device consisting of a plurality of remote controllers installed in different locations from the controller, and a single 2-core transmission cable connecting the main controller and each of the remote controllers, the device comprising: (a) , the main controller inputs an analog operation signal from (a) the DC power supply, (b) the constant voltage circuit, and (c) the remote controller, starts the required control process based on it, and monitors the state of the control process. A microcomputer that outputs an analog drive signal to the remote controller for the purpose of displaying and blowing the lamp and buzzer in the remote controller; an input/output circuit that functions as a variable constant voltage circuit when outputting an analog drive signal to the remote controller, and (e) a main unit controller terminal that serves as a point of exchange for both of the above signals between the main unit controller and the above remote controller. (b) The remote control is configured to include (a) a plurality of resistors including a variable resistor, and one or more resistors connected to each other so that one or more of the resistors can be short-circuited by turning on a switch. The effective resistance of the entire circuit is set by turning on and off the switch and adjusting the resistance of the variable resistor, and the resistance from the input/output circuit to the input/output circuit is set during this effective resistance. an analog operation signal generation circuit configured to generate an analog operation signal by passing a supplied constant current; (b) a voltage detection and lamp drive circuit that receives, discriminates and processes the analog drive signal; A lamp flashing circuit,
Consisting of various indicator lamps and other circuits/elements,
an analog drive signal processing circuit, (c) a corresponding remote control terminal connected to the main unit controller terminal via a two-core cable for analog signal transmission, and (d) a DC side terminal by connecting the remote control terminal to the AC side terminal. (c) the analog operation signal generation circuit, the microcomputer, and the analog drive signal processing circuit connect to the analog drive signal processing circuit; In order to correspond to the configuration of multiple functions, (a) generate and transmit multiple composite analog operation signals, and (b) perform the necessary control on the main unit based on the analog operation signals, and (c) A plurality of required composite lamp displays or buzzer displays are performed based on the analog drive signal, and (c) the microcomputer of the main controller and the input/output circuit cooperate. (a) By switching 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, these two signals can be transmitted by a single two-core transmission. An analog two-core remote control device characterized in that it is configured to transmit data through a cable, and (b) process human output between each remote controller in a time-sharing manner.

<Function> The analog two-core remote control device of the present invention is a completely analog remote control device in which the signals exchanged between the remote controller and the main controller are both analog signals generated by the people output circuit in the main controller and the variable resistance circuit in the remote controller. Compared to conventional two-core remote control devices using digital signal transmission methods, circuit complexity is eliminated and the manufacturing cost of the device is significantly lower. In addition, the analog 2-core remote control device of the present invention generates an analog operation signal using a simple variable resistance circuit and an input circuit, so although the device is extremely simple, it can be used not only to operate the operation switch and temperature control, but also to control other heating operations. , heat retention, and other operations required to start multiple complex control functions performed by the microcomputer in the main unit controller on the main unit can be reliably performed at multiple locations.

<Example> An analog two-core remote control device of the present invention will be described based on drawings showing examples thereof. Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a flowchart showing the operation of this embodiment, Fig. 3 is a graph showing the voltage types of analog operation signals, and Fig. 4 is an analog drive signal. It is a graph diagram showing the types of voltages.

In the following explanation regarding Figure 1, the remote controller used for hot water supply in the kitchen (hereinafter referred to as remote controller) will be temporarily referred to as the main remote controller, and the remote controller used for the bath will be referred to as the fluoro remote controller. To call.

In the following explanation, the mode will be divided into three modes: hot water supply, reheating, and heat retention, and the explanation will be explained in that order.

First, the hot water supply mode will be explained. First, it is assumed that the flow remote controller 20 and the main remote controller 20' are about to transmit an analog operation signal to the microcomputer 40 of the main controller, and the main controller 30 is in a state of waiting for the arrival of the same signal. (Flow chart of FIG. 2, step 200). Specifically, these remote controllers 20 and 20' are connected to input/output circuits 33 and 33' of the main controller (at this point, these circuits are in a mode in which a constant current is supplied to the remote controller). , that is, in the input circuit mode), and the analog operation signal generation circuits 25 and 25', which are set by turning on and off the various switches and adjusting the variable resistors. It is assumed that a required analog operation signal voltage is generated by the product of 25 total effective resistances and is to be transmitted to the microcomputer 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 overall effective resistance of the analog operation signal generation circuit 25 or 25' of the remote controller becomes the resistance I or 1', respectively. An analog operation signal based on this resistance value is generated by the circuit 25 or 25', and this analog operation signal is sent to the input/output circuit 33 of the main controller 30.
Or via 33', further microcomputer input signal line 3
4 or 34', it is transmitted to the microcomputer 40.

The voltage value of the analog operation signal transmitted to the microcomputer 40 is vl or v1' shown in FIG. In this way, the microcomputer 40 receives an analog operation signal from one of the remote controllers by turning on the operation switch, starts operating control of the main unit, and transmits the operation start status to the remote controller 20.
or 20' and for the purpose of displaying the lamp, the voltage values V and v of the analog drive signal shown in FIG.
, J via the microcomputer output signal lines 35 and 35', and further input/output circuits 33 and 33' (these circuits are in the variable constant voltage supply mode, that is, the output circuit mode at this point). ) to the flow remote controller 20 and main remote controller 20'. Then, the above-mentioned signal voltage v1 is transmitted to the analog drive signal processing circuit 26 via the bridge type rectifier circuit 9 in the flow remote control 20, but in the same circuit, it first passes through the switching transistor 10 and the resistor 11, and then is transmitted to the analog drive signal processing circuit 26. The voltage is applied to the constant voltage diode 12, but ■.

>V2DI2 (however, V2DI2 is a constant voltage and is assumed to be the operating voltage of
0 becomes ON, and the same signal voltage V is applied to the resistor 14 and the next voltage regulator diode 13 (its operating voltage is assumed to be ■2□3)
is applied to Therefore, a constant voltage VZD13 is established,
Together with the signal voltage v1 reached via the resistor 15,
Applied to voltage detection and lamp drive circuit 16. circuit 1
6, a voltage comparison is made and as a result, the operating lamp 1
8 is driven (lit), and at the same time, the lamp blinking circuit 17 enters the lamp blinking state. In the main remote controller 20' as well, the operation lamp 18' lights up in the same manner as described above (
Above are the steps 201 (or 221, 202, 203, 221, 222) in the flowchart of FIG.

Next, when the Q temperature control variable resistor 5' is adjusted to the required value using the main remote controller 20' (by turning off the operation switch 6'), the analog operation signal based on this adjusts the input circuit 33' of the main controller 30. The signal is further transmitted to the microcomputer 40 via the microcomputer input signal line 34'. The voltages of the analog operation signals transmitted to the microcomputer 40 at this time are V4' to V,' shown in FIG. Book Q
The microcomputer 40 that has received the operation signal from the temperature control determines whether combustion control should be performed (YES) or not (No) for the main unit that has already started operation control as described above.
If the judgment is NO, the current state is maintained, and if the judgment is YES, the combustion control is newly started for the main unit, and the state is reported and displayed on the main remote control 20' of the Q temperature control activation light. (In other words, to drive the lamp circuit), the voltage value v2' of the analog drive signal shown in FIG.
The output signal line 35' is further connected to the output circuit 33' (and then of the main remote controller 20') via the pre-fuji type rectifier circuit 9', the switching transistor 10', and then to the resistors 14', 15' and the voltage detection and lamp drive circuit 16. ', and lights up the combustion lamp 21' (steps 204, 205, 206.
207).

Second, the case of reheating mode will be explained.

First, in the flow remote controller 20, (the operation switch 6 is set to O)
When the reheating switch 7 is turned on (FF), the voltage V2 of the analog operation signal shown in FIG. 3 is input to the microcomputer 40. In response to this, the microcomputer 40 performs the necessary control on the main unit for reheating, and as a result,
The voltage v3 of the analog drive signal shown in FIG. 4 is output to the main remote controller 20', the lamp blinking circuit 17' is activated to blink the operating lamp 18', and at the same time, the voltage v3 of the analog drive signal shown in FIG. 4 is output to the main remote controller 20'. The voltage v2 of the analog drive signal shown in FIG.
lights up. Here, if all switches of the analog operation signal generation circuit 25 of the fluoro remote controller 20 are turned OFF and the analog operation signal from the F temperature control variable resistor 5 (and resistors 1, 2, 3, 4) is transmitted to the microcomputer 40 ( The voltage of the transmission signal to the microcontroller is shown in Figure 3.
The above-mentioned reheating mode status is maintained until F is heated up, and when F is heated up, the reheating lamp 19 is turned off, and the microcomputer 40 sends analog drive signals to the main remote controller 20' and the fluoro remote controller 20, respectively. Output voltages v2 (or vI') and V, and return the blinking operation lamps of both remote controllers to the lit state (this is the flowchart in Fig. 2, steps 208, 209, and 2102).
11.212.213).

Thirdly, the case of the heat retention mode will be explained. When you turn on the heat retention switch 8 using the Flo remote control 20 (resistance 1.2.3
The voltage v3 of the analog operation signal shown in FIG. outputs v, +, and v3 to the main remote controller 20' and the flow remote controller 20, respectively, and operates the lamp blinking circuit 17' in the main remote controller 20' to blink the operation lamp 18', and in the flow remote controller 20, causes the operation lamp 18 to blink. , and turns on the heat retention lamp 22. Here, if all switches of the analog operation signal generation circuit 25 are turned OFF and an analog operation signal is transmitted from the fluoro remote controller 20 to the microcontroller 40 by the F temperature control variable resistor 5 (and resistors 1, 2, 3, 4). , until F boils up, the current state is maintained, but when F boils up, the analog drive signal 4' shown in FIG. 4 is output from the microcomputer 40 to the main remote controller 20', and the buzzer drive circuit 22' is turned on, and the state waits until the heat retention timer is up, but when the timer is up, the heat retention operation is resumed (the steps 214 and 215 of the flowchart in Fig. 2 are explained above).
．． 216.217.218.219.220).

Note that the microcomputer 40 has the input/output circuits 33 and 33
', by switching 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) at a constant cycle, these two signals can be combined into a single signal. The data is transmitted through two-core transmission cable D or E, and
Input/output between the remote controllers 20 and 20 is processed in a time-sharing manner.

In the above embodiments, several examples of the implementation of the present invention have been shown, but in reality, in addition to the above, for example, in a one-can two-channel system, during reheating from the fluoro remote controller 20 side or when the heat retention mode is activated, There are cases where the temperature control on the main remote control is automatically set to a high temperature. In this case, the fact that the hot water is hot can be indicated by blinking the operating lamp. Alternatively, it is also possible to use a buzzer to indicate when the bath is hot. Furthermore, in the one-can, two-channel system, it is also possible to indicate water leakage in the can of the main unit using a buzzer on the remote control.

In this embodiment, a case of a combination of a hot water supply remote control and a bath remote control has been described, but the present invention can also be applied to cases such as hot water supply + heating using a 1-can 2-channel method, 10 bath heating systems, etc.
It can also be applied to complex models such as three cans and waterways.

In the above embodiment, the case where the variable resistor of the remote control is used for the purpose of temperature control was explained, but this variable resistor is used to generate analog operation signals that request the microcontroller to set the timer and the flow rate of the waterway. It can also be used for

The advantage of the analog 2-core remote control device of the present invention is that the remote control can initiate multiple complex functions in the microcontroller of the main unit controller using analog operation signals generated using a simple resistance circuit and constant current circuit. In addition, it includes many other effects such as: The first of them
The second effect is that the analog operation signal generated by the remote control is generated by a constant current circuit and a variable resistance circuit including a variable resistance and a switch, so the linearity of the signal is improved. Since the is a variable constant voltage, the brightness of the driven lamp and the buzzer sound can be kept constant. The third effect is that hot water supply can be turned on and off from multiple locations (for example, two locations), and the reheating and heat retention functions can be The fourth effect is that the 2-core cable connecting each remote control and the main controller can be made non-polarized by using a bridge rectifier circuit, and the fifth effect is that the main Remote control 20' and Flo remote control 20
(operation switch 6 on each remote control)
', 6) is the analog operation signal voltage V based on the resistance values of resistors 1' and 1.

By determining V,' (see Figure 3) based on the memory already held by the microcomputer, it is possible to identify which type of remote controller is connected to terminals 43-44 and 48-49 of the main controller. Therefore, no matter which main body controller terminal the remote controller is connected to, it will not be rejected as an incorrect connection.

<Effects> The first effect of the analog 2-core remote control device of the present invention is that all signals exchanged between the main controller and the remote controller are analog signals, compared to the conventional 2-core remote control device using a digital signal transmission method. This means that the complexity of the circuit is eliminated and the manufacturing cost of the device becomes much cheaper. The second effect is that although the analog 2-core remote control device of the present invention is of a simple type, it can not only operate the operation switch and temperature control settings at multiple locations, but also perform other operations such as reheating and keeping warm. The operations required to start multiple and complex control functions performed by the microcontroller on the main unit are
This can be implemented by using a constant current circuit, a simple switch, and a variable resistance circuit. Due to the above-mentioned second effect, the applicability of the present invention is expanded not only to hot water supply + bath, hot water supply + heating, bath + heating, etc. using the 1-can 2-channel system, but also to other complex models such as 1-can 3-channel system. can do. The third effect is that the analog 2-core 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 can be transferred to the constant current circuit, switch, and variable resistance circuit as described above. Since it is based on coupling, it is expected that the linearity of the signal will be improved, and since the analog signal is a variable constant voltage, the brightness of the lamp driven by this and the buzzer sound can be made constant. .

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a flowchart showing the operation of this embodiment, Fig. 3 is a graph showing the voltage types of analog operation signals, and Fig. 4 is an analog drive signal. It is a graph diagram showing the types of voltages. 9.9' Bridge type rectifier circuit 16.16': Voltage detection and lamp drive circuit 17.17
': Lamp blinking circuit 20.20' Two-flow remote control, main remote control 25.2
5': 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 41-42.46-4' 7: Main remote control, flow remote control terminal 43-44.4B-49: Main unit controller terminal Dl E: 2-core transmission cable

Claims (1)

[Claims] (1) A main unit controller attached to a main unit configured to have multiple and complex functions, a plurality of remote controllers installed in different locations from the main unit controller, and a main unit controller and the remote controller attached to the main unit configured to have multiple and complex functions. An analog 2-core remote control device consisting of a single 2-core transmission cable that connects (a) the main controller to (a) a DC power supply, (b) a constant voltage circuit, and (b) a constant voltage circuit. c) Input an analog operation signal from the remote controller, start the required control process based on it, and send an analog drive signal to the remote controller for the purpose of displaying and sounding the status of the control process on the lamp and buzzer in the remote controller. and (d) an input/output circuit that functions as a constant current circuit when inputting the analog operation signal to the microcontroller and as a variable constant voltage circuit when outputting the analog drive signal to the remote control. and (e) a main unit controller terminal that serves as a point for transmitting and receiving both the above signals between the main unit controller and the remote controller, (b) the remote controller includes (a) a plurality of resistors including a variable resistor. It consists of a resistor/switch circuit consisting of a body and one or more switches connected so that one or more resistors therein can be short-circuited by turning on the switch, and the effective resistance of the entire circuit is An analog operation signal configured to generate an analog operation signal by passing a constant current supplied from the input/output circuit through this effective resistance, which is set by turning the switch ON/OFF and adjusting the resistance of the variable resistor. a generation circuit; (b) a voltage detection and lamp drive circuit that receives, discriminates and processes the analog drive signal; and a lamp blinking circuit;
Consisting of various indicator lamps and other circuits/elements,
an analog drive signal processing circuit, (c) a corresponding remote control terminal connected to the main unit controller terminal via a two-core cable for analog signal transmission, and (d) a DC side terminal by connecting the remote control terminal to the AC side terminal. (c) the analog operation signal generation circuit, the microcomputer, and the analog drive signal processing circuit connect to the analog drive signal processing circuit; In order to correspond to the configuration of multiple functions, (a) generate and transmit multiple composite analog operation signals, and (b) perform the necessary control on the main unit based on the analog operation signals, and transmitting a drive signal; (c) performing a required plurality of complex lamp displays or buzzer displays based on the analog drive signal; (d) the microcomputer of the main body controller and the input/output circuit; (a) By switching the input period of the analog operation signal to the microcomputer and the output period of the analog drive signal from the microcomputer at regular intervals, both signals are transmitted through a single two-wire transmission. (b) An analog two-core remote control device configured to process input and output to and from each remote control in a time-sharing manner.