JPH0683080B2 - Radio control transmitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a radio control transmitter for operating a radio control airplane or the like, and more particularly to improvement of a method for finely adjusting control characteristics.

(B) Prior Art FIG. 4 shows an external view of a general radio control transmitter. This radio control transmitter 1'has two steering stick levers 2 and 3 provided on the front of the device, and the steering stick levers 2 and 3 are operated up and down or left and right to control a controlled device (radio). Control plane etc.)
State control. That is, by operating the stick lever, predetermined control data is transmitted, and the controlled device receiving this control data controls each operation unit (throttle, elevator, rudder, etc.) to a state corresponding to the control data. When controlling a radio-controlled plane,
By operating the stick levers 2 and 3, state control such as ascending / descending, left / right turning, and acceleration / deceleration can be performed. By the way, the stick levers 2 and 3 are configured to return to a specific neutral position by themselves when not operated. When the stick lever is in the neutral position, the radio control transmitter transmits control data that causes the controlled device to operate normally. In the case of a radio-controlled airplane, steady operation means going straight at a constant speed.
It is a level flight. This control data is stored in the device as a reference value.

However, some of the steered devices have subtle deviations in the settings of their respective operating parts, and some of them do not operate normally even when controlled based on the control data of the reference value. That is, in the case of a radio-controlled airplane, the steering mechanism may not be installed straightly, and even if such a radio-controlled airplane is controlled by a reference value, the airplane will ascend / descend and turn left / right. In such a case, the stick lever can be operated to the side opposite to the displacement of the operating part for steady operation, but in order to facilitate maneuvering, the radio control transmitter has a trimmer mechanism for shifting the reference value. There is. The trimmer mechanism is adjusted to reset the reference value to the side opposite to the displacement of the operating part so that the steered device operates normally in the neutral position.

In the conventional radio control transmitter 1 ', the stick lever 2 is provided below and to the right of the stick lever 2.
The trim levers 21 and 22 are provided for finely adjusting the reference values in the left and right direction and the up and down direction of the stick lever 3, and the reference values in the left and right direction and the up and down direction of the stick lever 3 are finely adjusted below and on the left side of the stick lever 3. Trim lever 23,2
4 are provided. When it is discovered during maneuvering that the steered device does not operate normally in the neutral position (usually this is not known without maneuvering), the pilot can adjust any of these trim levers to fine-tune the reference value. I was trying to operate normally.

(C) Problems to be Solved by the Invention By the way, the radio control transmitter 1 ′ is grasped by both hands from both sides, and a stick lever is used with both parents' fingers (first finger).
It is designed to operate 2, 3 and trim levers 21-24
I had to release my thumb from one of the stick levers to adjust. During this time, the steered device cannot be operated, so it becomes extremely dangerous,
Further, since the trim lever to be operated is different for each part to be adjusted, the operation becomes complicated and troublesome. Further, since the trim lever has a ratchet structure, it is difficult to finely adjust it and it is difficult to shift the reference value accurately.

In view of such problems, an object of the present invention is to provide a radio control transmitter capable of precisely fine-adjusting a reference value only by operating a stick lever and pressing a trim button.

(D) Means for Solving Problems The present invention relates to a radio control transmitter for generating control data having contents correlated with an operation angle of a stick lever with respect to a neutral position, and transmitting the control data to a steered device. In the above, a trim button is provided, and when the trim button is pressed during the operation of the stick lever, hold means for holding the transmission of the control data generated at that time, and then the stick lever is returned to the neutral position. When the trim button is pressed, the control data generated when the trim button is pressed is set as the control data to be generated when the stick lever is in the neutral position, and the resetting means for releasing the holding means is provided. Characterize.

(E) Operation The radio control transmitter of the present invention operates the stick lever to make it operate normally when the steered device does not operate normally at the neutral position of the stick lever. At this time, the trim button is pressed to continue transmitting the control data at this time (holding means). After that, if the stick lever is returned to the neutral position, the control data when the trim button is pressed is set as the reference value and the holding means is released. After this, steady operation is performed at the neutral position, and maneuvering becomes easier.

In this way, with this radio control transmitter, you can make fine adjustments as you make fine adjustments to the stick lever without releasing your hand from the stick lever.In addition, after adjustment, the stick lever is forced to remain steady until it is returned to the neutral position. Since the operation is held, the posture of the steered device does not collapse during adjustment, which is safe.

(F) Embodiment FIG. 1 is an external view of a radio control transmitter according to an embodiment of the present invention. This radio control transmitter 1
In the configuration of the conventional radio control transmitter described with reference to FIG. 4, the same parts are designated by the same reference numerals and the description thereof will be omitted. This radio control transmitter 1 has stick levers 2 and 3 on the left and right like a conventional radio control transmitter, and a trim button 4 is provided on the right end portion of the upper surface of the device. However, stick lever 2,
There is no trim lever near 3. The trim button 4 is a button switch that is pressed when shifting the reference value of each stick lever. This trim button 4
Hold the radio control transmitter 1 with both hands and use the thumb to operate the stick levers 2 and 3 with the right forefinger (the second finger).
It can be pressed with. That is, the fine adjustment operation can be performed without releasing the hands from the stick levers 2 and 3.

FIG. 2 is a block diagram of the radio control transmitter. The vertical and horizontal operation amounts of the stick levers 2 and 3 are electrically detected by a built-in variable resistor 10. Four variable resistors are provided for detecting the operation amounts of the stick levers 2 and 3 in the vertical and horizontal directions, and the variable resistor 10 is one of them. A constant voltage is applied to both ends of the variable resistor machine 10, and the voltage value corresponding to the operation amount of the stick lever is detected from the intermediate tap. The voltage value detected when the stick lever is in the neutral position is 2.5 V.
Varies between ~ 3V. The A / D conversion circuit 11 subtracts 2.5V from the voltage value input from the variable resistor 10 (that is, 2.
How much up and down about 5V) is converted into digital data as manipulated variable data. The manipulated variable data converted by the A / D conversion circuit 11 is input to the adder 12 via the switch 19. The adder 12 adds the manipulated variable data to the reference value to calculate control data. Since the manipulated variable data at the neutral position is 0, the reference value is calculated as the control data at the neutral position. This control data is
The analog value is converted again by the D / A converter circuit 13, and the PCM transmitter
It is PCM modulated by 14 and transmitted to the steered device.

A reference value register 18 is connected to the adder 12. A reference value is preset in the reference value register 18. This reference value register 18 is connected to the buffer register via the gate 17.
16 are connected. The buffer register 16 receives the data from the controller 15 and the gate 17 and the switch 19
Output the data to. The controller 15 is composed of a microcomputer. The controller 15 monitors the pressing of the trim button 4, and when the trim button 4 is pressed, the control data at that time is stored in the buffer register 16
To enter. At the same time, the switch 19 is switched to the buffer register side. Switch 19 is buffer register 16
While being switched to the side, the contents of the buffer register 16 are input to the adder 12 as manipulated variable data. After that, the controller 15 monitors that the stick lever is returned to the neutral position (that the data input from the A / D conversion circuit 11 becomes 0). When the stick lever is returned to the neutral position, the gate 17 is opened to add the contents of the buffer register 16 to the reference value register 18, and the switch 19 is switched again to the A / D conversion circuit 11 side.

Here, the adjustment work when the steered device does not operate steadily even when the stick lever is in the neutral position will be described with reference to the flowchart of the controller in FIG.

First, the pilot operates the stick lever so that the steered device operates normally. At this time, the trim button 4 is pressed. The controller that has determined that the trim button 4 has been pressed (n1) reads the manipulated variable data at that time (during normal operation) (n2), and inputs that data to the buffer register 16 (n3). At the same time, the switch 19 is switched to the buffer register side (n4). With this, the control data is held and the steered device continues to operate normally.

Then, the operator can operate the steered device in a normal state (in a normal operation state in the neutral position) by returning the stick lever to the neutral position. That is,
After holding, the controller 15 waits until the stick lever is returned to the neutral position (n5). Gate if stick lever is returned to neutral position
17 is opened to add the contents of the buffer register 16 to the reference value register (n6), and the switching device 19 is switched to the A / D conversion circuit 11 side again (n7). With this, "previous reference value +
“Operation amount data when the trim button is pressed” is set as a new reference value.

The buffer register 16, the switches 19 and n4 correspond to the holding means of the present invention, and the buffer register 16, the gates 17 and n6 and n7 correspond to the resetting means of the present invention.

(G) Effect of the Invention As described above, according to the present invention, even if the operating unit of the steered device has a setting deviation, the control data is finely adjusted (reference value) by simply pressing the trim button while operating the stick lever. Value shift). As a result, it is not necessary to release the hand from the stick lever, and there is no uncontrollable time, so that fine adjustment can be safely performed.
Further, since the amount of fine adjustment can be directly set by the stick lever, it is possible to perform fine adjustment more accurately as compared with the case where the hand is once released from the stick lever and the other trim levers are operated for fine adjustment.

Further, since a plurality of adjustment points can be adjusted simultaneously by pressing the trim button once, there is an advantage that the operability can be greatly improved.

Furthermore, if the trim button is pressed during steady operation, the control in that state is held, and the hold is released when the stick lever is returned to the neutral position. Adjustment work can be performed.

[Brief description of drawings]

FIG. 1 is an external view of a radio control transmitter according to an embodiment of the present invention, FIG. 2 is a block diagram of a control unit of the radio control transmitter, and FIG. 3 shows an operation of a controller of the radio control transmitter. It is a flowchart. FIG. 4 is an external view of a conventional radio control transmitter. 2,3 ... Stick lever, 4 ... Trim button, 15 ...
… Controller, 16 …… Buffer register, 17 …… Gate, 18 …… Reference value register, 19 …… Switcher.

Claims (1)

[Claims] 1. A radio control transmitter for generating control data having contents correlated with an operation angle of a stick lever with respect to a neutral position and transmitting the control data to a steered device, wherein a trim button is provided, and the stick lever is provided. When the trim button is pressed during the operation of, the holding means for holding the transmission of the control data generated at that time, and then the trim button is pressed when the stick lever is returned to the neutral position. A radio control transmitter, wherein the control data generated at this time is set as control data to be generated when the stick lever is in the neutral position, and resetting means for releasing the holding means is provided.