JPH0962424A - Ebl operation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the device which is tolerant of a shock, etc., by detecting the movement of a finger tip inserted into a circumference-shaped groove by an interrupter without contacting and rotating an EBL synchronously. SOLUTION: An operation part 10 is provided with the circumference-shaped groove 101 which is so wide and deep that at least of the finger tip 103 of an operator can be inserted. Then couples of photointerrupters 104 are arranged at the periphery of the groove 101 along the circumference of the groove; when the finger tip 103 of the operator is inserted into the groove 101, light which enters a light receiving element from a light emitting element is cut off, which can be detected. At the same time, the moving direction of the finger tip 103 in the groove 101 can be detected judging from which couple of photointerrupters detect the light cutoff state first, and the movement distance on the circumference can be detected from the number of light-shielded photointerrupters.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention operates an EBL (electric bearings line) which is a movable base line of a dotted line used for measuring the direction of a target on a radar display screen.
The present invention relates to a BL operating device.

[0002]

2. Description of the Related Art FIG. 5 is a schematic view of the configuration of a radar display device, in which 1 is a radar display device main body,
Reference numeral 2 is a radar display screen on which polar coordinates are displayed by using, for example, a CRT, 3 is an operation panel provided with various switches and knobs, 4 is an EBL azimuth adjustment knob provided on the operation surface, and SHM is a bow line on the display screen. , EBL-1 is CE
It is a display of EBL in the NTERED-1 mode.

There are several EBL display modes. For example, in the CENTERED-1 mode, one electronic cursor is displayed on the display screen, and the starting point is always the position of the ship on the display screen. Match. And EB
By rotating the L azimuth adjustment knob 4 by hand, the EBL is rotated clockwise (clockwise) or counterclockwise (counterclockwise) around the start point and placed on the target, and the azimuth on the object table is read from the azimuth scale. read. In the conventional EBL operation device that converts this rotation operation into an electric signal to rotate the electronic cursor,
The rotation of the EBL azimuth adjusting knob 4 is converted into an electric signal by using a shaft encoder. Note that, in FIG. 5, the EBL azimuth adjustment knob 4 is provided on the operation surface of the radar display device 1, but the EBL azimuth adjustment knob 4 is provided on the operation unit of a housing different from the radar display device 1. There is also.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the BL operating device, the EBL azimuth adjustment knob protruding on the operation surface is rotated, and the rotation is converted into an electric signal by using the shaft encoder, so that the body or object just touches the EBL azimuth adjustment knob. The EBL may move carelessly and malfunction. Further, since the shaft encoder is used, there is a problem that the shock resistance is low, such that the shaft and bearings that support the rotation thereof may be damaged when a strong shock is applied to the shaft.

The present invention has been made in order to solve the above problems, and even if the body or an object is inadvertently brought into contact with the EB.
It is an object of the present invention to provide an EBL operating device that does not have a risk of rotating L, can be operated reliably, and is strong against impact.

[0006]

An EBL operating device according to the present invention is provided with a circumferential groove having a width and a depth into which at least an operator's fingertip can be inserted, and a plurality of circumferential grooves are provided on both sides of the groove. When the operator inserts a fingertip into the groove and moves the fingertip along the groove by arranging the photointerrupter of, the moving direction of the fingertip and the circumference of the circle are arranged by the arranged photointerrupter. An operating unit that detects a moving distance and sends an electric signal, and an EBL on the display screen in synchronization with the rotation of the fingertip by the electric signal from the operating unit.
And means for moving (rotating). By using such an EBL operating device, it is possible to configure the operation portion with the concave portion and to configure the non-contact type EBL operating device without using a component that performs a mechanical operation.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are views showing an external configuration of an operating portion of an EBL operating device of the present invention. FIG. 1A is a perspective view and FIG. 1B is a sectional view taken along line α-α ′ of FIG. 1A. .
In FIG. 1, 10 is an operating portion, 101 is a circumferential groove, 1
Reference numeral 02 is a connection cord connecting the operation unit 10 and the radar display device 103, 103 is an operator's fingertip, and 104 is the groove 101.
It is a photo interrupter embedded around the.

As shown in FIG. 1, the operating portion 10 has at least a fingertip 103 of an operator (which is tentatively referred to as a fingertip in this specification, but is used as a generic name including a part of a hand other than the fingertip such as a fingertip). Hereinafter, the same) is provided with a circumferential groove 101 having a width and a depth that allow insertion of the same.

FIG. 2 is a partial detailed view for explaining the configuration of the operation unit 10 shown in FIG. 1, and F1 to F16 are photo interrupters (optical sensors in which a light emitting element and a light receiving element are combined). The photo interrupters are arranged around the groove 101 along the circumference of the groove as shown in FIG. 2, for example, F1 and F2, F3 and F4, for each combination of the two, and the operator is placed in the groove 101. Fingertips 10
When 3 is inserted, the light incident from the light emitting element to the light receiving element is blocked and can be detected, and at the same time, depending on which photointerrupter of the two combinations detects the light blocking first, the groove 101 The moving direction of the fingertip 103 inside can be detected, and the moving distance on the circumference can be detected by the number of photo interrupters shielded from light.

FIG. 3 is a diagram showing an example of the circuit configuration of the EBL operating device of the present invention. F1 to F16 are the same photo interrupters as in FIG. 2, R1 to R8 are resistors of 150Ω, and R9.
˜R12 is a 1 KΩ resistor, R13 and R14 are 10 KΩ resistors, R15 and R16 are 1 KΩ resistors, IC1 is a comparator, and X1 and X2 are output terminals. FIG. 4 shows the groove 10
4 is a diagram showing waveforms output from the output terminals X1 and X2 of the circuit shown in FIG. 3 when the fingertip 103 is inserted into the fingertip 1 and the fingertip 103 is moved, and FIG.
0 toward the drawing clockwise (ie F1 → F2 → F
The output waveform when rotated in the direction 3), and FIG. 4B shows the output waveform when rotated in the counterclockwise direction (that is, F1 → F16 → F15).

That is, F1, F3, F5, F7, F
In the odd-numbered photo interrupters 9, F11, F13, and F15, when there is a shield between any of these photo interrupters (when the fingertip 103 is inserted), the output X1 of the circuit in FIG. The "H" level is shown, and the "L" level is shown when there is no shield. Also, F2
In the even-numbered photo interrupters F4, F6, F8, F10, F12, F14, and F16, if there is a shield between any of these photo interrupters, the output X2 of the circuit in FIG. “L” level when there is no shield. Therefore, as shown in FIG. 2, the photo interrupters F1 to F16 are arranged around the groove 101 along the circumference of the groove, and the connection circuit thereof has the circuit configuration shown in FIG.
In the case where C is moved clockwise along the groove 101, the phase of the output pulse of X1 is X2 as shown in FIG.
When the output pulse is faster than the output pulse of, and when it is moved counterclockwise, the phase of X2 becomes an output earlier than X1 as shown in FIG. In addition, the moving distance can be detected by the number of detected pulses. Therefore, the electronic circuit for synchronously moving the EBL on the display screen using this output waveform can use the circuit of the conventional rotary encoder as it is.

The arrangement of the photo interrupter shown in FIG. 2, the circuit shown in FIG. 3, and the output waveform shown in FIG. 4 are only one embodiment, and the movement direction and the movement distance of the inserted fingertip 101 are determined by the photo interrupter. Any embodiment may be used as long as it can be detected in a non-contact manner by using.

[0013]

As described above, the EBL operating device of the present invention is configured to rotate the EBL synchronously by detecting the movement of the fingertip inserted in the circumferential groove in a non-contact manner by the interrupter. It is possible to prevent malfunctions such as careless rotation of the EBL just by touching the operation part with a body or an object, and it is possible to make the device resistant to impacts because no mechanical operation parts are used.

[Brief description of drawings]

FIG. 1 is a diagram showing an external configuration of an operating unit of an EBL operating device of the present invention.

FIG. 2 is a partial detailed view for explaining the configuration of the operation unit shown in FIG.

FIG. 3 is a circuit diagram showing an example of a circuit configuration of the EBL operating device of the present invention.

FIG. 4 is a diagram showing waveforms obtained by the circuit shown in FIG.

FIG. 5 is a diagram for explaining the configuration of a conventional device.

[Explanation of symbols]

 1 Radar Display Device Main Body 2 Radar Display Screen 10 Operation Unit 101 Circular Groove 102 Connection Code 103 Operator's Fingertip 104 Photointerrupter F1 to F16 Arrangement Position of Photointerrupter

Claims (1)

[Claims] 1. An EBL that rotates an EBL (electric bearings line) on a radar display screen when operated by an operator.
In the BL operating device, a circumferential groove having a width and a depth at least into which the operator's fingertip (including a part of a hand other than the fingertip such as a fingertip; the same applies hereinafter) is provided. By arranging a plurality of photointerrupters along the circumference on both sides, when the operator inserts a fingertip into the groove and moves the fingertip along the circumference of the groove, the arranged photointerrupter An operating unit that detects the moving direction of the fingertip and the moving distance on the circumference thereof and converts it into an electric signal, and an EBL on the radar display screen in synchronization with the movement of the fingertip by the electric signal from the operating unit. An EBL operating device comprising means for moving (rotating).