JP3179012B2 - Setting value registration method in the valve control controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling a water valve interposed in a water pipe, and more particularly to a method of registering a set value in a valve controller.

[0002]

2. Description of the Related Art Conventionally, in a water valve 1 as shown in FIG. 2, an opening degree is instructed from a controller 2 to an operating device 3 so that a valve body opening degree maintains a set value set in the controller 2. The opening and closing operation of the valve body is controlled. The controller 2 has a circuit for setting and registering the set value SV. The circuit includes a set value memory circuit 4 for storing the set value SV, and an internal setting manually input on site using operation keys provided on the controller 2. An internal set value memory circuit 5 for storing a value SVin, an external set value memory circuit 6 for storing an external set value SVout inputted from a remote place through a communication line, an internal set value memory circuit 5, and an external set value memory circuit 6 And a switch 7 for selecting any one of them and connecting to the set value memory circuit 4.

In this configuration, the set value S of the valve opening is set.
When inputting V, the switch 7 selects either manual input in the controller 2 (there is also input from a dedicated setting device attached to the controller 2) or signal input (external setting value) performed by an analog signal or the like through a communication line. And the external set value SVout input to the internal set value memory circuit 5 or the external set value SVout input to the external set value memory circuit 6 as the set value SV. Was being transferred to.

[0004]

In the above-mentioned conventional configuration, for example, the amount of water consumed in a water pipe differs depending on the time of day, the weather, the season, and the like.
It is necessary to change and adjust the opening of the tap valve 1 in accordance with the amount of water consumed at that time, and it is necessary to instruct the controller 2 to the controller 3 to indicate an appropriate opening.

For this reason, the internal set value memory circuit 5 has a function of storing a plurality of values as the internal set value SVin and outputting a different internal set value SVin to the set value memory circuit 4 for each time zone. are doing. However, in the function of regularly outputting a plurality of values set in advance in accordance with a change in time, as in the internal setting memory circuit 5, an appropriate opening degree is instructed to the operating device 3 in accordance with a change due to weather. In addition, it is impossible to quickly change the controller 2 of the site installed in each of a large number of water valves 1 existing in the water network to a setting according to the weather of the day. is there.

On the other hand, when the external set value SVout is input to the external set value memory circuit 6 from a remote place via a communication line and the external set value SVoutn is transferred and input to the set value memory circuit 4 as the set value SV, a real time Can be instructed to an arbitrary degree of opening to many controllers 2. However, to put it paradoxically, the administrator must always instruct the controller to set an arbitrary opening according to the situation, and automatic control cannot be performed. Further, since the switching operation of the switch 7 needs to be performed on site, the input method using the internal set value memory circuit 5 and the input method using the external set value memory circuit 6 are immediately switched, and The method could not be used appropriately.

The present invention solves the above-mentioned problem. A plurality of set values SV are registered in advance, and a set value SV having a different value for each time zone is indicated to the set value memory circuit 4. Set value registration in a valve control controller capable of performing control and manual control of a valve for changing a set value SV as needed from a remote place without involving an operation of “switching”. The aim is to provide a method.

[0008]

In order to solve the above-mentioned problems, a method of registering a set value in a valve control controller according to the present invention calculates a set value in a controller that controls a valve opening to a set value. A set value calculation circuit as a function circuit, a set value memory circuit for registering set values, and an internal set value memory circuit for registering internal set values to be set for each control time zone are provided and set from the internal set value memory circuit. To the internal set value of the value calculation circuit, input the internal set value for each control time zone as the basic set value at each time according to a preset procedure, and from the outside to the external set value item of the set value calculation circuit,
Enter the external set value as needed at any time, and in the set value calculation circuit, add the internal set value of the internal set value item and the external set value of the external set value item, and add the obtained sum to the total value The value of the summed value term is transferred from the set value calculation circuit to the set value memory circuit and registered as a set value in the respective control time zone.

When the controller is installed, a correction value based on the characteristics of the valve and the pipeline is input to the correction value term of the set value calculation circuit as a base value. The configuration is such that the value of the external setting value term and the value of the correction value term are added together, and the obtained total value is input to the summed value term.

[0010] Further, in a state where the value of the internal set value term is set to zero, an appropriate set value is sometimes registered in the set value memory circuit by an arbitrary external set value inputted from the outside to the external set value term. It was done.

Further, in a state where the value of the external set value term is set to zero, the set value is registered in the set value memory circuit based on the value input from the internal set value memory circuit to the internal set value term. is there.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a water supply valve 11 has an operation unit 12 for opening and closing a valve body, and is connected to the operation unit 12 to control the opening degree of the valve to a set value.
3 are provided.

The controller 13 includes a set value calculation circuit 14
, Set value memory circuit 15 and internal set value memory circuit 1
6. The set value memory circuit 15 registers a set value SV which is a target value when the controller 13 controls the water valve 11. The internal set value memory circuit 16 stores the internal set value SVin,
The internal set value SVin is a basic set value for determining the set value SV, and there are a plurality of values set for each control time zone of the water valve 11. The internal set value memory circuit 16 outputs an internal set value SVin corresponding to the current control time zone according to an instruction from the controller 13.

The set value calculation circuit 14 forms a function circuit for calculating the set value SV, and the internal set value S
Vin, the external set value SVout of the external set value term 18, and the correction value SVadd of the correction value term 19 are added up to obtain a total value S.
UM is input to the sum value term 20. The correction value SVadd is a value based on the characteristics of the water valve 11 and the pipeline.
When the controller 13 is installed, the value is input as a base value of the control. If the value is unnecessary, zero is set as the value.

In this configuration, when the set value SV is instructed to the controller 13, input means such as operation keys provided in the controller 13 are operated, and the internal set value memory circuit 16 is previously stored in the internal set value memory circuit 16 for each control time zone. The internal set value SVin is manually registered, and the internal set value SVin for each control time zone is stored from the internal set value memory circuit 16 to the internal set value item 17 of the set value calculation circuit 14 according to a preset procedure. Enter as the basic setting for. Controller 1
By operating the input means such as the operation keys provided in 3, the correction value SVadd is input in advance to the correction value item 19 at the time of installation or the like.
Further, the set value calculation circuit 1 is externally connected via a communication line or the like.
The external set value SVout is input as needed to the external set value item 18 of FIG.

The set value calculation circuit 14 calculates the internal set value term 17
Of the internal setting value SVin and the external setting value S of the external setting value item 18.
Vout and the correction value SVadd of the correction value term 19 are added together, and the obtained total value SUM is input to the total value term 20. The controller 13 transfers and registers the value of the summed value term 20 from the set value calculation circuit 14 to the internal set value memory circuit 16 as the set value SV in the respective control time zone.

Accordingly, since the internal set value SVin and the external set value SVout always act simultaneously on the set value SV, the set value SV is automatically changed for each control time zone by the change of the internal set value SVin. And the external set value SV
By inputting an appropriate value to out, it is possible to simultaneously change the set value SV to an arbitrary value at any time according to the current situation.

When the water supply valve 11 is controlled only by an external input by remote control, an arbitrary external set value SVout to be input to the external set value 18 is set in a state where the value of the internal set value 17 is set to zero. Based on this, an appropriate set value SV is registered in the set value memory circuit 15 from time to time.

When the water supply valve 11 is controlled only by the internal input, the value of the external set value item 18 is set to zero, and the value of the internal set value memory circuit 16 is input to the internal set value item 17 based on the value. And the set value memory circuit 15
Is registered in the setting value SV.

[0020]

As described above, according to the present invention, the internal set value SVin and the external set value SVout are set with respect to the set value SV.
Always operate at the same time, it is possible to simultaneously change the set value SV automatically for each control time zone and change the set value SV to an arbitrary value at any time. Depending on whether the value of the internal setting value item 17 is set to zero or the value of the external setting value item 18 is set to zero, it is possible to select between any control by an external input and automatic control by an internal input.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a valve control controller according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a conventional valve control controller.

[Explanation of symbols]

 11 Water supply valve 12 Operating device 13 Controller 14 Set value calculation circuit 15 Set value memory circuit 16 Internal set value memory circuit 17 Internal set value item 18 External set value item 19 Correction value item 20 Total value item

Claims (4)

(57) [Claims] 1. A controller for controlling a valve opening to a set value, a set value calculating circuit as a function circuit for calculating the set value, a set value memory circuit for registering the set value, and setting for each control time zone. An internal set value memory circuit for registering an internal set value to be provided is provided.The internal set value for each control time zone is stored from the internal set value memory circuit to the internal set value item of the set value calculation circuit in accordance with a preset procedure. Input the basic set value, externally input the external set value to the external set value item of the set value calculation circuit from time to time as necessary, and adjust the internal set value of the internal set value item in the set value calculation circuit. The sum of the external set value and the external set value is input, and the obtained total value is input to the total value term, and the value of this sum value term is used as a set value in the control time zone from the set value arithmetic circuit to the set value memory. Transfer to circuit Setpoint registration method of the valve control controller, characterized in that the record. 2. When a controller is installed, a correction value based on the characteristics of a valve and a pipeline is input to a correction value term of a set value calculation circuit as a base value. 2. The method for registering a set value in a valve control controller according to claim 1, wherein the value of the external set value term and the value of the correction value term are added together, and the obtained total value is input to the sum value term. 3. Registering an appropriate set value in a set value memory circuit with an arbitrary external set value input from the outside to the external set value term in a state where the value of the internal set value term is set to zero. The method for registering a set value in a valve control controller according to claim 1 or 2, wherein: 4. The method according to claim 1, wherein the setting value is registered in the setting value memory circuit based on a value input from the internal setting value memory circuit to the internal setting value item in a state where the value of the external setting value term is set to zero. A method for registering a set value in a valve control controller according to claim 1 or 2.