JPH03280696A - Analog two-core remote controller - Google Patents

Abstract

PURPOSE:To avoid a complicated and expensive device by generating and sending an analog control signal specific to its own remote controller respectively from an analog control signal generating circuit and a microcomputer and applying required control to a main body device so as to satisfy the operating function specific to a signal sender. CONSTITUTION:Analog control signal generating circuits 25, 25' and a microcomputer 40 generate and send an analog control signal respectively specific to self-remote controllers 20, 20' and apply required control to a main body device so as to satisfy the operating function specific to the signal sender remote controllers 20, 20'. Thus, the signal exchanged between remote controllers 20, 20'-main controller 30 is an analog 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 variable resistance circuit that is simple to operate in the kitchen, bathroom, and other multiple locations, such as operation switch, temperature control setting, reheating, and keeping warm, etc. It is an object of the present invention to provide an analog two-core remote control device that can perform independent operation functions at each of these multiple locations.

<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 above-mentioned control device is configured of: (a) a plurality of resistors including a variable resistor, and one connected so that one or more of the resistors can be short-circuited by turning on a switch. Alternatively, it is configured with a resistor/switch circuit consisting of a plurality of switches, and the effective resistance of the entire circuit is set by turning on/off the above switch and adjusting the resistance of the variable resistor, and the input/output is within this effective resistance. an analog operation signal generation circuit configured to generate an analog operation signal by passing a constant current supplied from the circuit, and (b) a voltage detection and lamp drive circuit that receives, discriminates and processes the analog drive signal. (c) An analog drive signal processing circuit consisting of various display lamps and other circuits and elements; (c) A corresponding remote control terminal connected to the main body controller terminal via a two-core cable for analog signal transmission. , (d) a bridge type rectifier circuit that connects the remote control terminal to the AC side terminal and connects the DC side terminal to the analog drive signal processing circuit; (c) the analog operation signal generation circuit; And the above microcontroller is compatible with the configuration of multiple functions of the main unit.
(a) Generate and transmit an analog operation signal specific to the self-remote control; (b) Based on the analog operation signal, perform the necessary control on the main unit in order to satisfy the operation function specific to the remote controller that is the source of the signal. (d) The microcomputer of the main body controller and the human output circuit cooperate to control the input period of the analog operation signal to the microcomputer and the output of the analog drive signal from the microcomputer. It is configured to transmit both of these signals through a single two-core transmission cable by switching the period at regular intervals, and (b) to process input and output between each remote controller in a time-sharing manner. It is characterized by the presence of

Function> The analog two-core remote control device of the present invention is a complete analog remote control device in which the signals exchanged between the remote controller and the main controller are both analog signals generated by the input/output circuit in the main controller and the variable resistance circuit in the remote controller. It functions as an analog signal transmission system, and when compared with a conventional two-core remote control device using a digital signal transmission system, the complexity of the circuit 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 analog operation signals using a simple variable resistance circuit and an input circuit. Operation can be performed reliably at multiple locations, and independent operation functions can be satisfied at each of these 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 related to 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. .

The main remote controller 20' and the fluoro remote controller 2o each transmit an analog operation signal to the main controller 30 requesting the main controller 3° to control the hot water supply and bath, and in response, the main controller 30 outputs an analog operation signal. It receives an analog drive signal that notifies the hot water supply and bath control status, determines the signal content, and drives the corresponding lamp and buzzer (lights up the lamp, sounds the buzzer).

In the following explanation, the explanation will be given in order for each of the three modes: hot water supply, reheating, and heat retention.

First, the hot water supply mode will be explained. First, 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 30, and the main controller 30 is in a state of waiting for the arrival of the same signal. (Flowchart 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 30 (at this point, these circuits attempt to supply constant current to the remote controllers). mode, that is, input circuit mode), and the ON-OFF of various switches in the analog operation signal generation circuits 25 and 25'.
and these circuits 2 set by adjusting the variable resistor.
It is assumed that a voltage of a required analog operation signal is generated by the product of 5' and the total effective resistance of 25, and is to be transmitted to the microcomputer 40.

In this state, when the operation switch 4' of the analog operation signal generation circuit 25' of the main remote controller 20' is turned on, the effective resistance of the circuit 25' becomes resistance 1', and the analog operation signal from this resistor 1' is transmitted to the same circuit. 25', the voltage of this signal undergoes voltage conversion here via the input/output circuit 33' of the main controller 30, and becomes the voltage of the value of The signal is input to the computer 40 via 34'. The purpose of the microcomputer 40 is to control the main unit to start operation for hot water supply based on the user's power, and to notify and display on the main remote control 20' that the main unit is in such a controlled state. With this, the microcomputer output signal line 35
A command is issued to (the variable constant voltage circuit of) the input/output circuit 33' through the input/output circuit 33' to output analog drive signals having voltage values v and l shown in FIG. 4 to the remote controller 20'. These analog drive signal voltages v and L pass through a two-core transmission cable D and are sent to the bridge type rectifier circuit 9' of the main remote controller 20'.
The signal is transmitted to the analog drive signal processing circuit 26' via the analog drive signal processing circuit 26'. In the same circuit, this signal voltage FLYI first passes through the switching transistor 10' and the resistor 11', and then is applied to the constant voltage diode 12'.
> V6O13 (however, V2., □' is the operating voltage of the voltage regulator diode 12'), the transistor 10' is turned on, and the signal voltage vI' is transferred to the next voltage regulator diode 13 via the resistor 14'. ′(its operating voltage is v
2□3). Therefore, constant voltage VZD1
1 is established and together with the signal voltage v,' reached via the resistor 15', the voltage detection and lamp drive circuit 16'
is applied to A voltage comparison is made in the circuit 16', and as a result, the operation lamp 17' is turned on (as above, the second
Figure flowchart, steps 201.202.209
．． 210).

Next, in the same main remote control 20', when the Q temperature control variable resistor 5' is adjusted to the required value (by turning off the operation switch 4'), an analog operation signal based on this is sent to the input/output circuit 33 of the main controller 30. ' and the microcomputer input signal line 34', the signal is transmitted to the microcomputer 40. The voltages of the analog operation signals transmitted to the microcomputer 40 at this time are v,' to V4' shown in FIG.

The microcomputer 40, which has received the analog operation signal from the Q temperature control, controls the Q sequence processing on the main unit, which has already started operation as described above. the result,
When the main unit starts Q combustion, the microcomputer 40 outputs an analog drive signal voltage v2' (see FIG. 4) to the main remote controller 20' via the input/output circuit 33'. As a result of this output, the operation lamp 17' continues to be lit and the Q combustion lamp 18' is newly lit (the above
Flowchart in Figure 2, Step 203.204.2
05.206).

The main remote controller 20' can independently operate its own hot water system as described above. However, during this independent operation, if the analog drive signal voltage v,' is being output from the microcomputer 40 as in the first case above, if the bath remote control side (this side can also perform independent operation, Therefore, independently, for example, F
When boiling occurs, the microcomputer 40 immediately outputs analog drive signal voltages ■ and ′ (abbreviated as 〉 temperature control is performed using a temperature control variable resistor), and the microcomputer 40 immediately outputs analog drive signal voltages In addition to the operation lamp 17', the buzzer drive circuit 8' is activated to make the buzzer sound. In addition, in the state where the analog drive signal voltage v2 is being output from the microcomputer 40, if boiling occurs on the F side, the microcomputer 40 immediately outputs the analog drive signal voltage v4' (while the main remote controller 20' is lit) Operation lamp 17
' and in addition to the Q combustion lamp 18' that is lit) activates the buzzer drive circuit 8' to make the buzzer sound (above, the second
Flowchart in Figure 2, steps 207 and 208).

Second, the case of reheating mode will be explained. In the fluoro remote control 20, when the reheating switch 6 is turned on, the effective resistance of the analog operation signal generation circuit 25 is only the resistor 1, and the circuit 25 generates an analog operation signal based on this, and sends it to the main controller 30. transmitted. That is, the analog operation signal is converted into a voltage value vl (see FIG. 3) in the input/output circuit 33 of the main controller 30, and is input to the microcomputer 40 via the microcomputer input signal line 34. The microcomputer 40 performs the necessary control for reheating the main unit, and as a result, the microcomputer 40 notifies the flow remote controller 20 that reheating control is being performed, and displays the corresponding lamp. An instruction is given to the input/output circuit 33 via the microcomputer output signal line 35 to output an analog drive signal voltage v+ (see FIG. 4) to the same flow remote controller 20.

The voltage v1 of the analog drive signal output from the circuit 33 based on this command is transmitted to the analog drive signal processing circuit 26 via the 2-core transmission cable E and the bridge type rectifier circuit 9 of the flow remote controller 20. , in the same circuit, it is applied via the switching transistor 10 and the resistor 11, and then to the constant voltage diode 12, but vl>V
2O12 (however, vzotz is the operating voltage of the voltage regulator diode 12), so the transistor 10 is turned on, and the same signal voltage v1 is applied to the resistor 14 and the next voltage regulator diode 13 (its operating voltage is V6O13). be done. Therefore, a constant voltage V2DI3 is established and the resistor 15
It is applied to the voltage detection and lamp drive circuit 16 together with the signal voltage v1 that has arrived via the . A voltage comparison is made in the circuit 16, and as a result, the reheating lamp 19 is turned on (this is the flowchart in FIG. 2, step 2).
20.221.222).

Next, when the F temperature control variable resistor 5 is adjusted to the required value in the same fluoro remote controller 20 (by turning off the reheating switch 6), an analog operation signal based on this is sent to the input/output circuit 33 of the main controller 30 and the microcomputer input. The signal is transmitted to the microcomputer 40 via the signal line 34. The voltages of the analog operation signals transmitted to the microcomputer 40 at this time are 3 to 4 shown in FIG. The microcomputer 40, which has received the analog operation signal from the F temperature control, controls the F sequence processing on the main unit which is already performing the reheating operation as described above. As a result, when the main unit starts F combustion, the microcomputer 40 outputs an analog drive signal voltage V2 (see FIG. 4) to the fluoro remote controller 20 via the input/output circuit 33. As a result of this output, the voltage detection and lamp drive circuit 1 in the flow remote controller 20
6 compares and determines the incoming signal voltage v2 with the reference voltage, continues to light the refiring lamp 19, and turns on the F combustion lamp 21.
(The above is the flowchart in Figure 2,
Step 223.224.225.226).

In this state, when F boils up, the fluoro remote controller 20
The analog drive signal voltage applied to is v.

As a result, both the reheating lamp 19 and the F combustion lamp 21 are turned off, and the buzzer drive circuit 8' of the main remote controller 20' is driven to sound the buzzer (steps 227 and 228 in the flowchart of FIG. 2).

Thirdly, the case of the heat retention mode will be explained. In the analog operation signal generation circuit 25 of the fluoro remote controller 20 (with the reheating switch turned OFF), when the warming switch is turned ON, the effective resistance of the circuit 25 becomes resistance 1.2, and the analog operation signal voltage V Z ( (see FIG. 3) is input to the microcomputer 40 of the main controller 3o. The microcomputer 40 performs the necessary control to keep the main unit warm, and as a result, the microcomputer 40 sends an analog drive signal voltage V3 (see FIG. 4) to the flow controller 20.
Output.

As a result, in the flow remote controller 20, the voltage detection and lamp drive circuit 16 is driven, and only the heat retention lamp 22 is turned on (steps 220, 221, 230, 231, and 232 in the flowchart of FIG. 2). Next, in the same way, turn off the heat retention switch 7 on the flow remote control 20 and adjust the F temperature control variable resistor 5 to the required value. 40. The microcomputer 40, which has received the analog operation signal based on the F temperature control, controls the F sequence processing on the main unit which is already performing the heat retention operation as described above. As a result, if the main unit starts F combustion, the microcomputer 40
3, an analog drive signal voltage V4 (see FIG. 4) is output to the fluoro-remote controller 20. As a result of this output, the voltage detection and lamp drive circuit 16 in the flow remote control 20 compares and determines the incoming signal voltage v4 with the reference voltage,
The heat retention lamp is continuously turned on, and the F combustion lamp 21 is newly turned on (hereinafter, steps 233, 234, and 235 in the second flowchart). After that, when F boils up, the heat retention timer operates, and when the heat retention timer goes up, reheating combustion is repeated intermittently to maintain heat (
The above is the flowchart in Figure 2, step 236.23.
7).

The bath remote control 20 can also independently operate the bath system to which it belongs, similar to the above-mentioned main remote control 20'. In order to clarify the independence of the operating functions of each remote controller, the microcomputer 40 cooperates with the aforementioned input/output circuits 33 and 33' to control the input/output between the main remote controller 20' and the floating remote controller. 20 is processed in a time-sharing manner (see steps 240 to 246 in the flowchart of FIG. 2).

Then, the microcomputer 40 cooperates with the input/output circuit 33 or 33' to switch 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 regular intervals. This allows both of these signals to be transmitted through a single two-core transmission cable E or D.

Next, in this embodiment, the case where the present invention is applicable to a bath remote control and a hot water supply remote control is described, but the present invention can also be applied to cases such as hot water supply + heating using a 2-can 2-channel system, bath + heating, etc. It can also be applied to composite models other than those with two cans and waterways. Then, the F temperature control variable resistor 5 of the flow remote control 20 shown in this embodiment
can be used to request the microcomputer 40 to set the reheating timer and drop-in flow rate in addition to setting the F temperature control.

Next, the effects of this embodiment will be described. The first effect is that the hot water supply and bath can be operated with separate remote controllers, and each remote controller can be equipped with switches, variable resistors, lamps, and buzzers that correspond to its own operating functions, making it rational and economical. It is. The second effect is that even when each remote controller is operating independently, the buzzer notifies the main remote controller (hot water supply side) of the boiling status of the bath, allowing the necessary information to be exchanged between the remote controllers. The third effect is that since the analog operation signal generated by the remote control is generated by a constant current circuit and a variable resistance circuit including a variable resistor and a switch, the linearity of the signal is improved. The fourth effect is that since the analog drive signal is a variable constant voltage, the brightness of the driven lamp and the buzzer sound can be kept constant.The fifth effect is that by using a bridge rectifier circuit, the connection between each remote control and the main controller can be made constant. The connected 2-core transmission cable can be made non-polar.The sixth effect is that the main remote controller 20' and the fluoro remote controller 20 (by turning on the operation switch 4', reheating switch 6, and heat retention switch 7 on each remote controller) analog operation signal voltage v,',v,,VZ (3rd
(see figure) based on the memory that the microcomputer already has, the terminals 43-44 of the main controller
It is possible to identify which type of remote control is connected to terminals 48 and 49, and therefore no matter which main body controller terminal the remote control is connected to, it will not be rejected as an erroneous 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 is significantly lowered. The second effect is that the analog 2-core remote control device of the present invention allows operations such as operation switch, temperature control setting, reheating, and keeping warm at multiple locations, even though the device is of a simple method. , can be implemented by using a simple variable resistance circuit, etc., and it is also possible to perform independent operation functions at each of these multiple locations. The third effect is that, based on the second effect, the present invention can be applied to hot water supply + bath, hot water supply + heating,
It is possible to expand the system to include not only 10-bath heaters, etc., but also complex models other than 2 cans and 2 channels. The fourth effect is that the analog 2-core remote control device of the present invention provides
Quality improvement, for example, since the analog operation signal of the remote control device of the present invention is based on the combination of the constant current circuit, the switch and the variable resistance circuit as described above, the linearity of the signal is improved, and the analog signal is Since it is a variable constant voltage, it is expected that the brightness of the lamp driven by this and the buzzer sound will be constant.

[Brief explanation of drawings]

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 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 control, Flo remote control terminal 43-44.48-49: Main unit controller terminal, 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. (b) an analog drive signal processing circuit consisting of a voltage detection and lamp drive circuit that receives, discriminates and processes the analog drive signal, various display lamps, and other circuits and elements; (c) Connect the corresponding remote control terminal to the main unit controller terminal via a two-core cable for analog signal transmission; (d) Connect the remote control terminal to the AC side terminal and connect the DC side terminal to the analog drive signal processing circuit. (c) The analog operation signal generation circuit and the microcontroller are configured to correspond to the configuration of multiple functions of the main unit.
(a) Generate and transmit an analog operation signal specific to the self-remote control; (b) Based on the analog operation signal, perform the necessary control on the main unit in order to satisfy the operation function specific to the remote controller that is the source of the signal. (d) The microcomputer and the input/output circuit of the main body controller cooperate, and (a) the input period of the analog operation signal to the microcomputer and the output period of the analog drive signal from the microcomputer; By switching between the two at regular intervals, both signals are transmitted through a single two-core transmission cable, and (b) the analog signal is configured to process input and output between each remote controller in a time-sharing manner. 2-core remote control device.