JP2001027441A - Set value input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unexpected setting while maintaining good operability using a rotary encoder by inhibiting inputting of an electric signal to a display means when the signal of the encoder is input and non-input time of the pulse takes for a predetermined period or more. SOLUTION: An encoder 20 outputs a predetermined pulse signal at each predetermined rotating amount of an operating shaft. A set temperature display unit 17 displays a digital display value. A control body inputs a pulse signal and measures a non-input time of the pulse. If the non-input time takes for a predetermined period or more, a change of a display value of the unit 17 based on the pulse signal is inhibited. Thus, the digital value displayed on the unit 17 can be altered by operating the shaft, and after the non-input time has elapsed, the digital value is not changed in response to number of the inputs even if the unit 17 inputs the pulse signal as long as next operation is not started.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having a set value input device for inputting numerical values such as a set time and a set temperature. It concerns the device.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication Nos.
Japanese Patent Publication No. 112915 discloses a setting value input device using a rotary encoder for inputting a cooking time in a heating cooker or the like. FIG. 4 is a front view showing an operation panel of a conventional set value input device used in such a cooking device. In the figure, 21 is a digital liquid crystal display, 22 is a setting switch, 23 is a temperature setting volume, and 24 is a rotary encoder for time setting.

[0003] In such a set value input device,
After pressing the various setting switches 22 to select a predetermined cooking method, if necessary, the temperature setting volume 23
The predetermined cooking can be performed by rotating the rotary encoder 24 for setting time and time and setting the value to a predetermined value. The digital liquid crystal display 21 displays the set value of the cooking time.

[0004]

Since the conventional setting value input device is constructed as described above, the rotary shaft of the rotary encoder 24 and the operation knob attached thereto are projected from the panel surface of the operation panel. Since it is installed, it is used for cultivation of agricultural products, and is used when inputting an operation schedule such as temperature in an air conditioner for controlling the temperature of a so-called greenhouse. However, there is a problem in that the operator accidentally touches the protruding operation knob during farm work, or the rotation shaft of the rotary encoder 24 rotates due to the vibration of a burner used in a greenhouse or a combustion device equipped with this operation panel. there were. If the rotating shaft of the rotary encoder 24 rotates in this manner, the value displayed at that time, for example, the set temperature, will be changed without knowing it. Problems such as loss of control can occur.

The present invention has been made to solve the above-mentioned problems, and prevents the above-mentioned accidental setting while maintaining good operability using the rotary encoder 24, thereby cultivating crops. In air conditioners that control the temperature of so-called greenhouses,
It is an object of the present invention to obtain a set value input device that can be suitably used when inputting an operation schedule such as the temperature.

[0006]

SUMMARY OF THE INVENTION A set value input device according to the present invention comprises an operation shaft, an encoder for outputting a predetermined electric signal for each predetermined rotation amount of the operation shaft, and an input for the electric signal. Display means for changing the digital display value according to the number of inputs, and the non-input period measuring means for measuring the non-input time of the pulse when the electric signal is input,
And input control means for prohibiting the input of the electrical signal to the display means when the non-input time exceeds a predetermined period.

[0007] In the set value input device according to the present invention, the input control means receives an electric signal and permits input of the electric signal to the display means when a predetermined pattern of signal is input.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a block diagram showing a configuration of an air conditioning system for a house for agricultural products such as a greenhouse using the heater control device for air conditioning according to Embodiment 1 of the present invention. In the figure, reference numeral 1 denotes a greenhouse or other greenhouse, 2 denotes one or more temperature sensors installed in the greenhouse 1, 3 denotes a combustion device for sending warm air into the greenhouse 1, and 4 denotes a combustion device. A blower device 5 for taking in outside air into the crop house 1 is a control device for controlling the combustion device 3 and the blower device 4 so that the temperature detected by the one or more temperature sensors 2 becomes a predetermined set temperature. .

In the control device 5, reference numeral 6 denotes input means such as an encoder for inputting a set temperature and the like, 7 denotes storage means for storing the set temperature and the like set by the input means 6, and 8 denotes clock means for outputting current time information. , 9 are display means for displaying the contents of the setting operation at the time of setting and the current operation status, etc., and 10 is input with the detected temperature information of the temperature sensor 2 together with the information from these means. A control body such as a microcomputer for outputting a control signal for controlling the blower 4, a combustion device controller 11 for controlling combustion ON / OFF and a combustion temperature of the combustion device 3 according to the control signal, and a control signal 12 for the control device Is a blower control unit that controls the blower ON / OFF of the blower 4 according to the following.

FIG. 2 is a front view showing an arrangement of an operation panel of the control device according to the first embodiment of the present invention. In the figure, 13 is an operation panel, 14 is an operation lamp, 15 is an error lamp, 16 is a current temperature display for digitally displaying the current temperature, 17 is a set temperature display for digitally displaying set temperature and set time, 18 is a set temperature display 17
Is a display changeover switch for switching the display content between a set temperature and a set time, and 19 is a set temperature display 1 for displaying the time.
Reference numeral 7 denotes a time display switch for displaying the current time, and reference numeral 20 denotes a rotary encoder having an operation shaft rotatable in both directions and outputting a pulse signal to the control main body 10 for each predetermined rotation amount of the operation shaft.

Next, the operation will be described. FIG. 3 is a flowchart showing a processing operation repeatedly executed in the control main body 10 based on the operation of the rotary encoder according to the first embodiment of the present invention. In the drawing, ST1 is an operation presence / absence determination step for determining whether or not the operation axis is operated based on the presence / absence of a pulse input, ST2 is a release determination step for determining whether or not set value change prohibition is released, and ST3. Is a setting value changing step of increasing or decreasing the value held by the control body 10 by an amount corresponding to the number of input pulses, and displaying the increased or decreased value on the set temperature display 17; ST4
Is an operation determining step of determining whether an operation of a predetermined release pattern has been performed based on a pulse input pattern,
ST5 is a release step for releasing the set value change prohibition. ST6 is a no-operation time determining step of determining whether or not T seconds have elapsed since the operation was stopped, and S6.
T7 is a set value change prohibition step for prohibiting pulse input.

Therefore, when the temperature and time are set in the air conditioning system under the operation of the control body 10,
By operating the display changeover switch 18 or the time display switch 19, either the time or the temperature is displayed on the set temperature display 17, and in the display state, a predetermined operation is performed on the rotary encoder 20 to inhibit the setting change. Cancel. After the cancellation, the setting of the display content is changed by the input of the rotary encoder 20. Turning the rotary encoder 20 to the right while the set temperature is displayed on the set temperature display 17 increases the set temperature, and turning the rotary encoder 20 to the left lowers the set temperature. The changed numerical value is displayed on the set temperature display 17. Then, when T seconds have elapsed since the last set value change operation, the change of the set value is prohibited again. Conversely, T
If the next operation is performed within seconds, the value will increase or decrease immediately. Even if multiple settings such as temperature and time are required, these settings can be changed by one release operation. Since it can be changed, such a release operation does not impair the entire operability.

When such a setting is made, the air conditioning system starts an operation according to the set temperature and the set time, and the control main body 10 stores the contents of the storage means 7, the current time of the clock means 8, The control operation is started based on the temperature detected by the temperature sensor 2 in the greenhouse. Specifically, first, the current time input from the clock means 8 is compared with various start times, and the set temperature in the corresponding time zone is read. Next, the set temperature is compared with the detected temperature of the temperature sensor 2, and if the detected temperature is lower than the set temperature, a control signal for starting combustion is output to the combustion device control unit 11,
If the detected temperature is higher than the set temperature, the blower controller 12
Output a control signal for starting the fan operation.
Then, when the detected temperature becomes a temperature within an allowable range with respect to the set temperature, the control unit 11 or 12 outputs a control signal to stop the operation. By repeating this operation, the temperature inside the greenhouse 1 for crops such as a greenhouse can be maintained at an appropriate temperature, and healthy growing of the crops can be promoted.

The input pattern of the pulse required in the operation determination step ST4 may be any pattern. For example, within 5 seconds, the pulse input pattern for 5 pulses (rotation amount 10 °) or more in the right direction within 1 second. An input pattern for performing an operation or an operation of 5 pulses (rotation amount: 10 °) or more in the right direction within 3 seconds, and then an operation of 5 pulses (10 ° in rotation amount) in the left direction. An input pattern or an input pattern that performs an operation for one or more turns rightward within 5 seconds may be used.

It should be noted that the rotation is not released only by the rotation of the rotary encoder 20 itself as in the first embodiment.
It may be canceled in accordance with the input of another switch.

As described above, according to the first embodiment, the operating shaft, the encoder 20 for outputting a predetermined pulse signal for each predetermined rotation amount of the operating shaft, and the set temperature for displaying the digital display value The display 17 and the pulse signal are input, and the non-input time of the pulse is measured.
When the non-input time is equal to or longer than a predetermined period, the control body 10 for inhibiting the change of the display value of the set temperature display 17 based on the pulse signal is provided. 17 can be changed, and after the elapse of the non-input time, unless the next operation is started, the set temperature indicator 1
Reference numeral 7 does not change the digital display value according to the number of inputs even if a pulse signal is input.

Accordingly, in an air conditioner for controlling the temperature of the crop house 1 used for cultivating crops, the operation shaft is provided so as to protrude from a panel surface such as an operation panel for inputting the temperature or the like. A farmer or the like accidentally touches the protruding operation shaft during farm work, or the operation shaft rotates due to vibration of a burner used for the crop house 1 or the combustion device 3 to which the operation panel is attached. Even if it does, the value displayed at that time, such as the set temperature, is not changed without knowing it, and the temperature of the agricultural product house 1 can be appropriately controlled.

According to the first embodiment, the control body 10
When a pulse signal is input and a predetermined number of pulses are continuously input, a set temperature indicator 17 based on the pulse signal is input.
Since the change of the display value is permitted, there is an effect that the prohibition of the change of the value of the set temperature display 17 can be released only by operating the operation axis without performing a special operation. Therefore, there is an effect that even an unfamiliar agricultural worker can easily change the setting.

[0019]

As described above, according to the present invention, an operation shaft, an encoder for outputting a predetermined electric signal every predetermined rotation amount of the operation shaft, and the electric signal are input,
A display unit for changing a digital display value according to the number of inputs, a non-input period measuring unit for receiving the electric signal and measuring a non-input time of the pulse, and a non-input period of a predetermined period or more. And the input control means for prohibiting the input of the electric signal to the display means when the operation axis is operated, so that the digital display value displayed on the display means can be changed, and After the elapse of the non-input time, the display means does not change the digital display value according to the number of input electric signals even if the next operation is not started.

Therefore, in an air conditioner for controlling the temperature of a so-called greenhouse used for growing crops,
This operation axis is arranged in a state protruding from the panel surface such as an operation panel for inputting the temperature, etc., and a farmer etc. accidentally touches this protruding operation axis during agricultural work, or if this operation panel is Even if the operating shaft rotates due to the vibration of the attached greenhouse or the burner used for the combustion device, the value displayed at that time, such as the set temperature, will not be changed without knowing it. The effect is that the temperature of the greenhouse can be appropriately controlled.

According to the present invention, the input control means receives an electric signal and, when a predetermined pattern of signal is input, permits the input of the electric signal to the display means. There is an effect that input prohibition on the display means can be released without performing a special operation. Therefore, there is an effect that even an unfamiliar agricultural worker can easily change the setting.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an air conditioning system for a house for agricultural products such as a greenhouse using the heater control device for air conditioning according to Embodiment 1 of the present invention.

FIG. 2 is a front view showing an arrangement of an operation panel of the control device according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing a processing operation repeatedly executed in a control body based on an operation of a rotary encoder according to the first embodiment of the present invention.

FIG. 4 is a front view showing an operation panel of a conventional setting value input device.

[Explanation of symbols]

 10 Control body (non-input period measuring means, input control means) 17 Set temperature display (display means) 20 Rotary encoder (operation axis, encoder)

Claims (2)

[Claims] 1. An operation shaft, an encoder that outputs a predetermined electric signal for each predetermined rotation amount of the operation shaft, and an electric signal that is input and changes a digital display value according to the number of inputs. A display unit, a non-input period measuring unit that receives the electric signal and measures a non-input time of the pulse, and inputs the electric signal to the display unit when the non-input time is equal to or longer than a predetermined period. Setting value input device comprising: input control means for prohibiting the setting. 2. An input control means to which an electric signal is inputted,
2. The system according to claim 1, wherein when a signal of a predetermined pattern is input, input of the electric signal to the display means is permitted.
The set value input device described.