JP2521443Y2 - Radio transmitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a radio control transmitter for remotely controlling a model airplane, helicopter, automobile, and the like.

[Prior Art] FIG. 3 shows an example of a general radio control transmitter.

The transmitter 201 is provided with two sticks 202 and 203 rotatably in directions A and B and arrows C and D, respectively. By rotating the stick 202 in the A direction or the B direction, it is possible to control the elevator or the ladder of the airplane that is the controlled object. By rotating the stick 203 in the C direction or the D direction, the throttle or aileron can be controlled. Also, in the figure, 20
Reference numerals 4 and 206 are trims for finely adjusting the neutral position of the stick 202 with respect to the elevator and the ladder, respectively. Further, 205 and 207 are trims for fine adjustment of the stick 203 regarding the throttle and aileron. The cylindrical knob 208 is an idle map knob for setting the minimum engine speed. 209 is a hovering throttle knob that is used especially when hovering and finely adjusts the throttle servo regardless of mixing. The elevator dual switch 210 and the ladder dual switch 211 are changeover switches for changing the steering characteristics of the stick 202. The elevator dual switch 210 is a toggle switch for switching between kick up / kick down of the elevator. When it is pushed up, it is kick down, and when it is pushed down, it is kick up. Ladder dual switch 211
Is a toggle switch that switches between kick-up and kick-down of the rudder. Push it up to kick down, or down to kick up. Reference numeral 213 is a display unit composed of liquid crystal or the like, and 214 is a setting unit for setting the steering characteristics of the sticks 202 and 203, and includes function keys a to d formed of push switches.

[Problems to be Solved by the Invention] In the above-described radio control transmitter, various indications such as a channel and a set amount are displayed on the display unit 213 at the time of operating the controlled object or setting the operation characteristics of the sticks 202 and 203. .
However, as shown in FIG. 4, the channel (CH)
9 adjustable travel volume (ATV) functions
Display when set to 0% (Fig. 4 (a)), display of idle up amount (ID) to 0%, and display of steering data indicating the current position of the stick 203 (Fig. 4 (b)) ) And, there is a portion which is not shared by the electrodes formed in the display portion. Therefore, it is necessary to form an electrode pattern corresponding to the type of display on the display unit, and the space factor of the display unit becomes worse. In order to improve this, if a display device for graphic display is adopted, a large number of drive circuits are required, and the entire device becomes expensive due to the necessity of fine processing.

The present invention improves the space factor of the display unit by making it possible to switch between the channel display and the display of the operation position of the stick by using the common display unit, and the radio control transmitter with the display unit made smaller than before. Is intended to provide.

[Means for Solving the Problems] A radio control transmitter according to the present invention is a radio control transmitter for remotely controlling a controlled vehicle by transmitting a signal corresponding to a stick operation through a plurality of channels. The unit has two display areas, a first display area and a second display area. In the first display area, the steering characteristic of the stick and its set amount are displayed. The steering characteristic of the stick indicates the relationship between the operation amount of the servo or the like operated by the stick and the operation amount of the stick. In the second display area, either the selected channel or the operation position of the stick is displayed by a continuous numeral string and one or two cursors selectively displayed near the numeral string. .

[Embodiment] FIG. 2 is a schematic block diagram of a radio control transmitter of the present invention. The same parts as those in FIG. 3 are designated by the same reference numerals.

In FIG. 2, the resistance of variable resistors 401 and 402, one end of which is connected to the DC power source V, changes according to the operation of the sticks 202 and 203 in FIG. The analog voltage is input to the multiplexer 403.
The multiplexer 403 sequentially inputs the output signals of the variable resistors 401 and 402 to the analog / digital (A / D) converter 404.
The A / D converter 404 converts the input analog signal into a parallel digital signal, and inputs the parallel digital signal to the parallel-serial converter 405 via the arithmetic circuit 413. The parallel-serial converter 405 converts the input parallel digital signal into a serial digital signal and inputs the serial digital signal to the high-frequency circuit unit 406. The high frequency circuit 406 modulates the input serial digital signal and transmits it from the antenna 212.

On the other hand, the function key a for controlling the display mode is
The display circuit is connected to the control circuit 408 and the mode changeover switch 410 via the display mode control circuit 407 to form a display changeover unit. The function keys b to d, the elevator dual switch 210 and the ladder dual switch 211 are the control circuit 40.
Connected to 8 inputs. The output section of the control circuit 408 is connected to the control terminal of the arithmetic circuit 413 and the input section of the memory 409. The output section of the memory 409 is connected to one input terminal of the arithmetic circuit 413 and one input section of the mode changeover switch 410. The other input terminal of the mode changeover switch 410 is connected to the output section of the arithmetic circuit 413. The output section of the mode changeover switch 410 is connected to the display section 213 via the data conversion circuit 411 and the display drive circuit 412. The operation will be described below.

Variable resistor 40 according to the operation amount of the sticks 202, 203
The output signals of 1 and 402 are input to the A / D converter 404 in a predetermined order for each channel by the multiplexer 403. A / D
The converter 404 converts the analog input signal from the multiplexer 403 into a digital signal and inputs it into the arithmetic circuit 413.
The arithmetic circuit 413 responds to the control signal from the control circuit 408,
For each channel, the storage data of the memory 409 and the output signal of the A / D converter 404 are arithmetically processed, and then the parallel / serial converter 4
05 and mode switch 410. Memory 409
Signals input from the arithmetic circuit 413 and the mode selector switch 410 from the function keys a to a will be described later.
d and data set by the elevator dual switch 210, the ladder dual switch 211, and the knobs 208 and 209. This data can be used, for example, by stick 20
It is the data for giving 2, 203 the exponential function and the dual rate function, and the data for mixing each channel. The parallel-serial converter 405 is
The parallel signal from the arithmetic circuit 413 is converted into a serial signal. The high frequency circuit unit 406 modulates the serial signal, and the antenna 212
To the controlled vehicle. As described above, the control characteristics of the switches 202 and 203 can be changed according to the function set by the function keys a to d, for example, dual rate, mixing, etc., and the controlled object can be controlled in various ways.

Next, setting and display of various functions will be described.
First, the function setting method will be described. The function of the stick of the radio-controlled transmitter in the present embodiment is the steering characteristic of the stick indicating the relationship between the operation of the steered portion operated by the stick and the operation amount of the stick. For example, when setting the elevator dual rate of the stick 202, which is one example of the steering characteristics of the stick, the function key a is pressed an appropriate number of times to set the control circuit 408 to the elevator dual rate setting mode by the display mode control circuit 407. Then, the elevator dual switch 210 is set to the upper side (down side) or the lower side (up side), and the mode changeover switch 410 is set to the mode for sending the signal from the memory 407 to the data conversion circuit 411. At this time, the data stored in the memory 409 is transferred to the data conversion circuit 411 via the mode changeover switch 410.
Is input to The data conversion circuit 411 converts the signal from the mode changeover switch 410 into display data and inputs it to the display drive circuit 412. The display drive circuit 412 drives the display unit 213 in response to the display data.

FIG. 1 (a) shows a display when setting the adjustable travel volume (ATV) function, which is a function for adjusting and setting the right and left (upper and lower) separately during the operation of the servo without changing the neutral position at all. In the figure, the channel (CH) 1 is selected by the cursor 101, and it is shown that the ATV as the steering characteristic is set to 90%. In the figure, the alphanumeric characters forming "ATV" and "90" are composed of 7 segments because they are relatively large characters and are easy to manufacture. On the other hand, the letters "CH" and "1" to "6" on the upper part are small letters, and if 7-segment structure is used, it will be expensive due to fine processing, etc.
It is composed of a single electrode pattern. The electrode of the cursor 101 is formed on the upper part of each number, and only the cursor on the upper part of CH1 is displayed. Fig. 1 (b) shows the display when setting the idle up (ID) function, which is a function to prevent the low speed rotation (idling) of the engine from falling below a certain speed as the steering characteristics. ing. "T-ID" and "0" are the display by the above-mentioned segment. In the same figure (b), the operation position (direction c in FIG. 3) related to the throttle servo of the stick 203 is shown as the operation data on the upper part of the channel number sequence (1 to 6) used in the same figure (a). Cursor 101
Is displayed. Here, the stick 203 is shown to be between 2 and 3. The set value is 0%.
The cursor 101 moves the upper part of the numbers 1 to 6 in accordance with the operation of the stick 203 in the c direction, and displays the position of the stick 203.

[Advantages of the Invention] According to the radio control transmitter of the present invention, the same number sequence and cursor are shared so that the channel display and the amount display can be switched and displayed on the same display unit, so that the space of the display unit can be improved. The factor is good, and the display unit of the radio control transmitter can be downsized.

[Brief description of drawings]

1 (a) and 1 (b) are views showing a display in an embodiment of the present invention, FIG. 2 is a block diagram of a radio control transmitter of the same embodiment, and FIG. 3 is a front view of a general radio control transmitter. Figure, 4th
(A), (b) is a figure which shows the display in the conventional radio controlled transmitter. 101 …… Cursor 201 …… Radio control transmitter 213 …… Display unit 410 …… Mode changeover switch that constitutes the display changeover unit a …… Function key that constitutes the display changeover unit

Claims (1)

(57) [Scope of utility model registration request] 1. A radio control transmitter for remotely controlling a controlled object by transmitting a signal according to a stick operation via a plurality of channels, and an operation amount of a controlled part operated by the stick and operation of the stick. Selection is made by the first display area for displaying the steering characteristics of the stick indicating the relationship with the quantity and the set quantity thereof, and the continuous numeral string and one or two cursors selectively displayed near the numeral string. And a second display area for displaying the operating position of the selected channel or stick in the same display section.