JPS62259055A - Constant setting device for electric circuit - Google Patents

Abstract

PURPOSE:To enable a value to be preset with a knob and to easily read the set value by setting a circuit constant with the preset value when the presetting operation is performed. CONSTITUTION:When the knob 2 is operated, a microprocessor 12 fins a value indicated by an element 4a from the rotational position of the knob 2 an the position of the energized element 4a and then outputs the value a circuit 14 to be set. In this operation, the position of the energized element is fixed to a position determined optionally at the start of the operation. Consequently, the element 4a rotates as the knob 2 is rotated. For the purpose, the knob 2 is operated to set the element 4a at a desired position on a scale 5, thereby sending the set value to the circuit 14. When the presetting operation is performed during the operation, on the other hand, the processor 12 outputs the preset value to the circuit 14 and also finds and outputs the position of the energized element to an LED driver 7. Consequently, a change from the energized element 4a to an element 4b is made and the preset value is readable.&Z;11: contact input encoder, 13: preset operation part.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a constant setting device for setting circuit constants of an image brightness control circuit, etc. of an ultrasonic diagnostic device, and more specifically, It is equipped with a display section consisting of a flexible (unrestricted rotation) scale, a scale provided around the scale, and a group of elements arranged in correspondence with the scale, and when a preset operation is performed, the circuit constants are displayed using the preset values. At the same time, the element is energized at the position determined from the preset value and the rotational position of the hunting element, while when setting by pinching is performed, the circuit is activated by the signal determined from the rotational position of the hunting element and the energization position of the element. The present invention relates to a constant setting device for an electric circuit, which sets constants.

(Prior art) Ultrasonic diagnostic equipment transmits ultrasound waves to a desired part of a subject, receives reflected waves, and displays an image created on a CRT.
This is a device that displays images on the screen. This kind of ultrasound diagnostic equipment is
Typically, a CRT has a brightness control circuit that controls the brightness of the entire image displayed on the CRT. In the brightness control circuit, the circuit constant is determined by a signal from the constant setting device, and the brightness is determined under the circuit constant! Perform 4111. The constant setting device usually sets the constant of the brightness control circuit using a solenoid,
When the preset operation is performed (when the auto button is turned on), the above settings are performed using preset values set in advance.

In the above configuration, the brightness of the entire image area is set in 1 db increments by the hunting operation, and the brightness is set to 50 db by the preset value.

Note that the above multi-values are only an example, and are appropriately selected depending on the specifications of the ultrasound diagnosis facility.

(Problems to be Solved by the Invention) By the way, the gaps in conventional constant setting devices are configured by a variable resistor type with a scale or a rotary encoder type without a scale.

The former is the mark 2 made on the hunting 20 as shown in Figure 6.
1 and the scale 22 on the panel surface to determine the set value by rotating the dial 20, and the value can be easily read. However, since the blade 20 is generally not capable of being rotated by an external signal, the hunting 20 cannot be preset. On the other hand, with the latter, it is easy to set any value or change the variable range using an external signal, but since it does not have a scale, it is inconvenient that a separate display is required to read the set value. There is.

The present invention has been made in view of the above, and an object of the present invention is to provide a constant setting device for an electric circuit that is capable of presetting and that allows setting values to be easily read. .

(Means for Solving the Problems) The electric circuit constant setting device of the present invention which achieves the above object has a rotatable notch in the panel portion, and a scale provided around the corner and a scale corresponding to the scale. It is equipped with a display section consisting of a group of arrayed elements, and when a preset operation is performed, the circuit constants are set with the preset values, and the elements are energized at the position determined from the preset values and the rotational position of the grip. When the settings are made, the circuit constants are set using signals obtained from the rotational position of the arc and the biasing position of the element.

(Example) Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a configuration diagram showing an embodiment of the present invention. The handle 2 of the manual setting operation unit 1 is integrated with a rotating shaft 3 that is rotatably supported, and a group of LED elements 4 are arranged on the surface of the knob 2 along its outer periphery. . LED
The element group 4 constitutes a display section of the device with a scale 5 (see FIG. 3) that is marked according to the arrangement direction thereof and an LED driver 7 connected via a wiring 6 installed inside the rotating shaft 3. are doing. A contact point 8 arranged around the rotating shaft 3 constitutes a rotational position detecting section of the hunter 2 with a contact element 9 fixed to the rotating shaft 3 and a contact input encoder 11 connected via a wiring 10. . The microprocessor 12 receives the rotational position signal of the hunting 2 from the contact input encoder 11, L
A predetermined calculation process is performed based on the LED element energizing signal (element energizing position signal) of the ED driver 7 and a preset signal from the preset operation section 13, and a setting signal is sent to the circuit to be set (brightness control circuit) 14. Output or LE
A signal for determining the D element biasing position is output to the LED driver 7. FIG. 2 is a diagram showing the electrical connections of the above structure, and each symbol is used with the same meaning as in FIG. 1.

Next, the operation of the constant setting device will be explained. In operation, the microprocessor 12 outputs setpoint signals to the set circuit 14, the rotational position of the sensor 2 (position of the contact 9) and the energized element 4, or 4b (see FIG. 3).
The location of the machine is always known. Now, when the hunter 2 is operated, the microprocessor 12 determines the rotational position (mechanical position) of the hunter 2 and the energized elements 4. From the position of The value indicated by the element 4a is determined and output to the set circuit 14. In this operation, the position of the energized element is fixed at an arbitrarily determined position at the start (when the device is powered on). For this reason, element 4. rotates with the rotation of the hunter 2, and has the same function as the mark 21 in the conventional example. Therefore, by operating the handle 2 and aligning the element 4° with the desired position on the scale 5, for example, the 40% position on the scale as shown in FIG. can give.

On the other hand, when a preset operation is performed during the above operation, the microprocessor 12 sets the preset value to 70%, for example.
A signal value indicating this is output to the set circuit 14, and the position of the element to be energized is determined from the preset value and the rotational position of the corner 2 at that time, and output to the LED driver 7.

As a result, as shown in FIG. 3, the biasing element 4a
to 4b, and the preset value of 70% can be read.

FIGS. 4(a) and 4(b) are configuration diagrams showing the main parts of another embodiment of the present invention, in which (a) is a diagram showing a setting operation using a loop, and FIG. 4(b) is a diagram showing a 71 table setting operation. FIG. 3 is a diagram showing a state in which the The feature of this embodiment is that the LED elements 4 and the scale 5 constituting the display section are provided on the same panel surface. Further, during the setting operation by picking, the microprocessor changes the biasing position of the element in accordance with the rotation of the picking 2.

FIG. 5 is a configuration diagram showing a main part of another embodiment of the present invention, in which (a), like the above, does not show the setting operation due to the isolation, and (b) shows the state in which the preset operation is being performed. FIG. The feature of this embodiment is that the LED elements 4 and the scale 5 constituting the display section are provided on the same panel surface, and the set values are displayed in a strip shape.

In addition, although the above embodiment described an ultrasonic diagnostic apparatus,
The present invention does not need to be limited to this, and other electric circuit constants may be set.

In addition, the elements constituting the display section may be other elements, such as
It may be a liquid crystal or the like. Further, the means for detecting the rotational position of the hunter may be a photoelectric type or an 1lffila type.

(Effects of the Invention) As explained above, according to the electric circuit constant setting device of the present invention, there is a rotatable groove on the panel, a scale provided around the groove, and a scale arranged in correspondence with the scale. It is equipped with a display section consisting of a group of elements, and when a preset operation is performed, the circuit constants are set with the preset value, and the element is energized at the position determined from the preset value and the rotational position of the hunting. When this is done, the circuit constants are set using the signals obtained from the rotational position of the horn and the energized position of the element, making it possible to preset on the fly, and the set values can be easily read. .

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing one embodiment of the present invention, and FIG.
Fig. 1 is a block diagram showing the electrical connections, Fig. 3 is a block diagram showing the main parts (isolation) of an embodiment of the present invention, and Figs. 4 (a) and (b) are 5(a) and (0) are block diagrams showing the main parts (hunting parts) of another embodiment of the present invention. FIGS. The figure is a configuration diagram showing the main part (hunting) of a conventional example. DESCRIPTION OF SYMBOLS 1...Manual setting operation part, 2...Lock, 3...Rotation axis, 4...LED element, 5...Scale, 6 and 7...Wiring, 8...Contact, 9...Contact child.

Claims (1)

[Claims] Normally, the constants of the circuit to be set are set by a pincher, and when a preset operation is performed, the setting operation is performed according to a preset value. a rotational position detection section for detecting the rotational position of the picker; and a group of elements arranged along the rotational direction of the picker, the element group being configured to detect a setting value for the circuit to be set and the rotation of the picker. a display unit in which the biased position of the element is determined by a signal related to the position;
When a preset operation is performed, the energized position of the element is determined from the scale marked in accordance with the arrangement direction of the element group, and the preset value and the rotational position detection signal of the grip at that time. 1. A constant setting device for an electric circuit, comprising: a calculation section that calculates a setting value for the circuit to be set from the biasing position of the element and the rotational position signal of the pinching when setting is performed.