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The present invention provides a radio controlling apparatus that performs a change to a vacant channel rapidly to allow smooth control even if an uncontrollable state due to radio interference suddenly occurs. In a radio controlling transmission apparatus of the radio controlling apparatus, a recep

The present invention provides a radio controlling apparatus that performs a change to a vacant channel rapidly to allow smooth control even if an uncontrollable state due to radio interference suddenly occurs. In a radio controlling transmission apparatus of the radio controlling apparatus, a reception section for searching a vacant channel is provided. When a vacant channel is detected, it is stored in memory of the radio controlling transmission apparatus. A transmission section transmits control signals, a selection code, and vacant channel data, the control signals being output by an operation section using a control signal transmission timer and a selection code transmission timer. Using a reception section, a controlled apparatus of the radio controlling apparatus receives signals. If the vacant channel data and the selection code are received, the controlled apparatus stores them in memory of the controlled apparatus. If control signals are also received, the control signals are sent to a controlled section via a decoder. However, if the selection code is not received by the controlled apparatus for the duration of a selection code holding timer, control abnormality is determined to have occurred. A visible abnormal operation is performed and a reception channel of the controlled apparatus is changed to the vacant channel stored in the memory of the controlled apparatus. In the radio controlling transmission apparatus, a change to the vacant channel is performed and the selection code is transmitted. When the selection code is detected by the controlled apparatus, control of the controlled apparatus is performed using the vacant channel thereafter.

대표청구항 ▼

1. A radio controlling apparatus comprising: an operation section including a joy stick; a control section having a CPU and memory; a radio controlling transmission apparatus having a transmission section for transmitting control signals based on an operation of the operation section; and a contr

1. A radio controlling apparatus comprising: an operation section including a joy stick; a control section having a CPU and memory; a radio controlling transmission apparatus having a transmission section for transmitting control signals based on an operation of the operation section; and a controlled vehicle controlled by receiving the transmitted control signals and converting the received signals to parallel signals that control controlled portions, wherein when an uncontrollable state of a transmission channel occurs in the radio controlling transmission apparatus due to radio interference, the radio controlling apparatus utilizes a reception section to automatically search a plurality of alternate channels for a vacant channel, and automatically changes the transmission channel to the vacant channel. 2. The radio controlled apparatus according to claim 1, wherein the radio controlling transmission apparatus comprises means for setting a selection code transmission timer for assigning a control signal transmission time, a selection code transmission time and a reception time, so as to transmit a selection code that distinguishes the control signals of the controlled vehicle from control signals of another apparatus at the selection code transmission time. 3. The radio controlling apparatus according to claim 1, wherein the controlled apparatus comprises detecting means for detecting a selection code from received signals; squelch means for setting a selection code holding timer, which determines a detection interval of the selection code, and for holding a squelch state so as to output control signals for the duration of the selection code holding timer in which the selection code is held. 4. The radio controlling apparatus according to claim 1, wherein the controlled vehicle comprises detecting means for detecting a selection code from received signals;storing means for storing the detected selection code; andsquelch means for setting a selection code holding timer, which determines a detection interval of the selection code, and for holding a squelch state so as to output signals for the duration of the selection code holding timer in which the selection code is held. 5. The radio controlling apparatus according to claim 4, wherein the controlled vehicle comprises vacant channel holding means for storing or rewriting channel data of the memory storing vacant channels when there is a vacant channel data in the received signals. 6. The radio controlling apparatus according to claim 5, wherein when the selection code holding time is over during the reception of the control signals and a squelch capability stops, the reception channel is automatically changed to a vacant channel stored in the channel data of the memory and an abnormal operation by which control abnormality is visibly recognized is executed, and if there is the selection code in the signals received by the reception section, a squelch capability is exerted so that a controlled state is set. 7. The radio controlling apparatus according to claim 1, wherein when the radio controlling transmission apparatus detects control abnormality of the controlled vehicle during the control of the controlled vehicle performed by the operation of the control section, a channel change switch is operated to perform a change to a vacant channel stored in the memory, and the identification code is transmitted to restart control of the controlled vehicle. 8. The radio controlling apparatus according to claim 2, wherein CTCSS or DCS is used as the selection code to control the controlled section by a squelch signal, thereby preventing radio interference. 9. The radio con controlling apparatus according to claim 5, wherein CTCSS or DCS is used as the selection code to control the controlled section by a squelch signal, thereby preventing radio interference. 10. The radio con controlling apparatus according to claim 6, wherein CTCSS or DCS is used as the selection code to con trol the controlled section by a squelch signal, thereby preventing radio interference. 11. The radio con controlling apparatus according to claim 7, wherein CTCSS or DCS is used as the selection code to control the controlled section by a squelch signal, thereby preventing radio interference. 12. A communications device for a radio controlled model comprising a hand-held transmitter operated by a user and adapted to communicate with a receiver on the model, the hand-held transmitter comprising: a manually operated input device for inputting commands to be relayed to the model; circuitry for converting the commands into digital command signals; a clock for establishing a repeating transmission period; digital command transmitting means for transmitting the digital command signals to the receiver on the model during a first scheduled portion of the repeating transmission period; channel scanning means for scanning a predetermined frequency range to select a vacant alternate channel for transmitting signals to the receiver; memory for storing a vacant alternate channel; alternate channel transmitting means for communicating the vacant alternate channel to the receiver during a second scheduled portion of the repeating transmission period; and channel switching command transmitting means for transmitting to the receiver a command to switch communications to the vacant alternate channel. 13. The communications device of claim 12 further comprising interference detection circuitry for detecting an interfering communications signal, and for actuating the channel switching command transmission means upon said detection to transmit to the receiver the command to switch communications to the vacant alternate channel. 14. The communications device of claim 12 further comprising manual input means for overriding the scheduled portion of the repeating transmission period and communicating the channel switching command transmission means to transmit to the receiver the command to switch communications to the vacant alternate channel. 15. The communications device of claim 12 further comprising means for determining if the stored vacant alternate channel is not currently vacant, and for communicating a new vacant alternate channel to the receiver during the second scheduled portion of the repeating transmission period. 16. A radio controlled system for a model comprising: a hand held transmitter comprising: a manually operated input device for inputting control commands to be relayed to the model; circuitry for converting the control commands to digital control signals; a microprocessor including a clock for establishing a repeating transmission period; a channel scanner for scanning available channels for vacancy; memory for storing a frequency of a vacant available channel; a signal generator that generates a vacant channel switching signal indicating to the model that a new vacant channel frequency is to be transmitted; and a transmitter for transmitting during a first portion of the repeating transmission period said digital control signals, and for transmitting during a second portion of the repeating transmission period said vacant channel switching signal, and for transmitting during a third portion of the repeating transmission period the frequency of the vacant channel; and a model including circuitry comprising: a receiver for receiving said digital control signals, said vacant channel switching signal, and said frequency of the vacant channel; a squelching control for squelching the control of the model during reception of the vacant channel switching signal and the frequency of the vacant channel; and channel switching means for switching from a current channel to the vacant channel upon instruction in the vacant channel switching signal. 17. The communications system of claim 16 further comprising interrupt signal generating means for interrupting the repeating transmission period and initiating immediate sw itching between the hand-held controller and the model to the vacant channel.