JP2521536Y2 - Radio control transmitter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Use The present invention relates to a radio control transmitter used when remotely controlling a controlled object such as a model airplane, and particularly sets a fine adjustment amount of a stick lever. Radio control transmitter with trim volume.

(B) Conventional Technology A radio control transmitter 51 as shown in FIG. 5 is used for remote control of a controlled object. This radio control transmitter 51 has a stick lever 52 protruding on the surface,
The operation amount of the stick levers 52, 53 is detected by the volume control device 53, and the operation amount of the servo motor provided on the controlled object (not shown) is transmitted to the receiver. Further, the radio control transmitter 51 is provided with trim levers 54 to 57, and the adjustment amount of the control amount by the stick levers 52 and 53 can be set. In addition, the adjustment amount set by operating the trim levers 54 to 57 is stored in the memory, and when the trim volume lever is in the mechanical neutral position, the adjustment amount stored in the memory is used to adjust the stick lever. The control amount set by the operation is adjusted.

(C) Problems to be Solved by the Invention However, in the above-described conventional radio control transmitter, the trim lever must be kept in the neutral position at the time of mechanical operation during normal use in which the operation amount of the stick lever is adjusted according to the adjustment amount. If the trim lever moves from the neutral position while the transmitter is not being used, such as during transportation, the operation amount of the stick lever during the next use will not be corrected and the controlled object will operate normally. There was a problem that could not be made. In particular, the trim lever is often made to be able to stop at a plurality of positions by a ratchet structure, and it is not possible to immediately recognize which position is an accurate neutral position in the vicinity of the mechanical neural position. Problems occur relatively frequently and are a major problem.

The purpose of this invention is to ensure that the position of the trim lever at the start of use always matches the neural position, and as long as the position of the trim lever is maintained at the position at the start of use, the stick is always adjusted with the adjustment amount stored in the memory. It is an object of the present invention to provide a radio control transmitter capable of accurately operating a steered object by correcting an operation amount of a lever and always accurately correcting an operation amount of a stick lever.

(D) Means for Solving the Problem A radio control transmitter according to the present invention comprises a trim volume for setting a fine adjustment amount of the stick lever, and a trim memory for storing the adjustment amount set by the trim volume. In the radio control transmitter, the initial value storage means for storing the output of the trim volume when the power is turned on and the adjustment amount stored in the trim memory are subtracted from the initial value stored in the initial value storage means. And trim output means for outputting the value after subtracting the value from the output of the trim volume.

(E) Operation In this invention, when the power is turned on at the start of use of the radio control transmitter, the output of the trim volume at that time is stored in the initial value storage means. The trim output means subtracts the adjustment amount stored in the trim memory from the initial value stored in the initial value storage means, subtracts the result from the current trim volume output, and outputs the result. Therefore, when there is no change in the output of the trim volume from the start of use, that is, when the trim lever is not operated, the output of the trim volume always matches the initial value stored in the initial value storage means, and the trim output means Outputs the adjustment amount stored in the trim memory. This is the same regardless of how the trim lever is operated while the power is off, and the adjustment amount of the stick lever does not change unless the output of the trim volume changes while the power is on.

(F) Embodiment FIG. 2 is a block diagram showing a schematic configuration of a radio control transmitter which is an embodiment of the present invention.

The operation amount of the stick lever is detected by the volume 2. The output of the volume 2 is input to the adder circuit 4. Further, the operation amount of the trim lever is detected by the trim volume 3. The output of this trim volume 3
It is guided to the controller 1 via the A / D converter 6. The controller 1 processes the output data of the trim volume 3 according to the processing procedure described later, and outputs it to the adding circuit 4 via the D / A converter 7. In this way, the addition circuit 4 adds the processed data of the output of the volume 2 and the output of the trim volume 3, and the addition result is supplied to the PCM transmitter 5.

FIG. 1 is a diagram showing a configuration of a controller of the radio control transmitter.

An A / D converter 6, a D / A converter 7, a ROM 12 and a RAM 13 are connected to the CPU 11 via an internal bus 14. As described above, the output data of the trim volume 3 is input from the D / A converter 6. A program defining the operation of the CPU 11 is written in advance in the ROM 12, and the output data of the trim volume 3 is processed according to this program and output from the D / A converter 7 to the adder circuit 4. Data input / output during this processing operation is temporarily stored in each memory area of the RAM 13. For example, as shown in FIG. 3, memory areas MA1 to M
Each of A3 is assigned to a storage area for the initial value, the adjustment amount and the current value of the trim volume 3, and a memory area MA4 is assigned a flag F described later.

FIG. 4 is a flowchart showing a part of the processing procedure of the controller of the radio control transmitter.

The CPU 11 checks the state of the flag F assigned to the memory area MA4 when the power is turned on and at predetermined intervals thereafter (n1). If the flag F is in the reset state, the output of the trim volume 3 is output. The data is stored in the memory areas MA1 and MA3 and the flag F is set (n2). This flag F indicates the output of the trim volume 3 at the start of use of the radio control transmitter, that is, the state of whether or not the initial value is stored in the memory area MA1. Then, the adjustment amount stored in the memory area MA2 is read (n3). When the preset adjustment amount is stored in the memory area MA2, the content of the memory area MA2 is subtracted from the content of the memory area MA1, and the result is further subtracted from the content of the memory area MA3 to obtain the adjustment output T. (N4, n5). And this adjustment output T
Is output from the D / A converter 7 to the adding circuit 4 (n6). In the above processing, n5 and n6 correspond to the trim output means of this invention.

If the above processing of n1 to n6 is executed when the power is turned on, the memory areas MA1 and MA3 used for the calculation of n5
, That is, the initial value and the current value of the trim volume 3 are the same values read in n2. Therefore, in the calculation of n5, MA1 = MA3, and the content of the memory area MA2, that is, the preset adjustment amount remains as the adjustment output T. This means that the preset adjustment amount is always supplied to the adding circuit 4 at the start of the operation regardless of the output value of the trim volume 3 when the power is turned on.

Further, once the processing of n1 to n6 is completed after the power is turned on, the flag F is in the set state, the process proceeds from n1 to n7, and the output of the trim volume 3 is stored in the memory area MA3. Therefore, as long as the output of the trim volume 3 does not change after the operation is started, in other words, unless the trim lever is operated, MA1 = MA3 is maintained at n5, and the preset adjustment amount is always accurately output to the adding circuit 4. Will be.

Furthermore, when the trim lever is operated and the output of the trim volume 3 changes after the start of maneuvering, MA1 ≠ MA3 at n5
Then, the value obtained by adding the difference between the current value and the initial value to the adjustment amount is output to the addition circuit 4. Therefore, the position of the trim lever at the start of maneuvering is used as the neural position for subsequent trim adjustment.

When the adjustment amount is not stored in the memory area MA2 at n4, that is, when the adjustment amount is not set in advance, the current output of the trim volume 3 is directly used as the adjustment output T (n4 → n8). .

As described above, according to this embodiment, the position of the trim lever at the start of the operation is set to the mechanical neutral position, and as long as this position is maintained, the memory area M of the RAM 13 is
The adjustment amount stored in A2 is output. Therefore, even if the position of the trim lever changes when the radio control transmitter is not used, the preset adjustment amount can always be maintained as long as the position of the trim lever does not change after the start of maneuvering. Can remotely control objects accurately.

(G) Effect of the Invention According to the present invention, the adjustment amount stored in the trim memory is always output as long as the output of the trim volume when the power is turned on is maintained, and the radio control transmitter is used during transportation. Even if the trim lever output is changed due to the action of external force or the contact of another person when the trim volume is not used, the trim volume output does not change when the power is on. Since the adjustment amount stored in the trim memory is output, there is an advantage that the controlled object can always be accurately controlled by remote control.

[Brief description of drawings]

1 is a block diagram showing a configuration of a controller of a radio control transmitter according to an embodiment of the present invention, FIG. 2 is a block diagram showing a schematic configuration of the radio control transmitter, and FIG. 3 is a radio control transmission. Memory map of the main part of the RAM that forms part of the controller of the machine,
The figure is a flowchart showing a main part of a processing procedure of a controller included in the radio control transmitter. FIG. 5 is a front view of a general radio control transmitter including the embodiment of the present invention. 1 ... Controller, 3 ... Trim volume, MA1 ...
… Memory area (initial value storage means), MA2 …… Memory area (trim memory).

Claims (1)

(57) [Scope of utility model registration request] 1. A radio control transmitter comprising a trim volume for setting a fine adjustment amount of a stick lever, and a trim memory for storing the adjustment amount set by the trim volume, when a power source is turned on. Trim for storing the output of the trim volume and trimming the adjustment amount stored in the trim memory from the initial value stored in the initial value storage to subtract and output the trim volume output. A radio control transmitter, comprising: an output unit.