JPH04321326A - Ground-to-air radio equipment controller - Google Patents

Abstract

PURPOSE:To realize the ground-to-air radio equipment controller in which the antenna of a transmitter-receiver is shared, monitoring of a transmission voice is attained even in the case of sharing antenna and delay is eliminated. CONSTITUTION:The ground-to-air radio equipment controller provided with a communication equipment 1 sending transfer voice with a control center, a terminal equipment 3 transmitted/received by an operator, a transmitter 8 sending a voice from the control center and the terminal equipment to an aircraft, and a receiver 9 receiving the voice signal from the aircraft so as to monitor the voice from the control center and the terminal equipment at the control center and the terminal equipment is provided with a 4th switching device 11 connecting the transmitter 8 and the receiver 9 selectively to an antenna 20 based on a PTT tone included in the voice from the control center and a keying signal from the terminal equipment and a 5th switching device 15 outputting the voice signal from the terminal equipment to the control center.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention shares the transmitter and receiver antennas used for voice communication between the ground and aircraft, and enables remote control of radio equipment from a control center. , relates to an anti-aircraft radio control device that monitors audio between a control center and an aircraft and performs first-come, first-served calls from a terminal device.

0002

2. Description of the Related Art A conventional device of this type is shown in FIG. In the same figure, a communication device 1 that transmits audio to and from the control center, a PTT tone detection circuit 2 that detects PTT tones included in the audio transmitted from the control center,
A terminal device 3 through which the operator sends and receives calls, a keying signal detection circuit 4 that detects keying signals from the terminal device 3, and a PTT tone included in the transmitted voice from the control center and a keying signal from the terminal device 3 A first-come-first-served priority processing circuit 5 performs priority processing, a PTT tone removal circuit 6 removes PTT tones included in transmitted audio from the control center, and a first-come-first-served priority processing circuit 5 processes sounds from the control center and voices from the terminal device 3. a first switch 7 that selects and outputs the sound according to the result of , a second switch 10 that outputs a keying signal to the transmitter 8 based on the result of the PTT tone detection circuit 2 or the keying signal detection circuit 4; an AGC signal detection circuit 12 that detects the AGC signal from the receiver 9; Based on the results of the AGC tone generation circuit 13 and the AGC signal detection circuit 12,
a third switch 14 that outputs the C tone to the control center;
It has a mixing circuit 16 that mixes the audio from the receiver 9 and the AGC tone, and a sixth switch 18 that selectively outputs the audio from the receiver 9 according to the result of the first-come, first-served priority processing circuit 5.

0003

[Problems to be Solved by the Invention] In the conventional device described above, the transmitted audio from the control center or the terminal device 3 is monitored by the terminal device 3 by looping from the transmitter 8 to the receiver 9, and the audio transmitted from the terminal device 3 is monitored by the terminal device 3. The voice is transmitted from the transmitter 8 to the receiver 9 to the control center. Therefore, when the antenna of the transmitter 8 and the receiver 9 is shared, the terminal device 3 can monitor the transmission audio from the control center or the terminal device 3, and the control center can monitor the transmission audio from the terminal device 3. The problem is that it can't be done. In addition, since the audio is monitored by looping from the transmitter 8 to the receiver 9, there is a problem that delays may occur if the terminal device 3 and the transmitter 8 and receiver 9 are installed far apart. . SUMMARY OF THE INVENTION An object of the present invention is to provide an air-to-air radio control device that makes it possible to monitor transmitted audio even when a transmitter-receiver antenna is shared, and eliminates delays.

0004

[Means for Solving the Problems] The anti-aircraft radio control device of the present invention includes a communication device for transmitting and receiving audio to and from a control center, a terminal device for an operator to transmit and receive calls, and a control center and a terminal. An anti-aircraft radio comprising a transmitter for transmitting audio from the device to an aircraft and a receiver for receiving audio from the aircraft, and configured to monitor audio from the control center and the terminal device at the control center and the terminal device. The aircraft control device receives P included in the audio from the control center.
a switch (fourth switch) that selectively connects the transmitter and the receiver to the antenna based on the TT tone and the keying signal from the terminal device; It is equipped with a switch (fifth switch) that outputs audio to the control center.

[0005]

[Function] According to the present invention, the transmitter and the receiver can be selectively connected to the antenna by the fourth switch, and the voice of the terminal device can be output to the control center by the fifth switch, so that the antenna can be shared. At the same time, delay is eliminated by eliminating loopback from the transmitter to the receiver.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention, and FIG.
The same parts as those in the conventional structure shown in FIG. Here, in addition to the configuration shown in FIG. 2, a fourth switch is provided which selectively switches between the transmitter 8 and the receiver 9 with respect to the antenna 20 based on the results of the PTT tone detection circuit 2 or the keying signal detection circuit 4. 11, a fifth switch 15 that outputs the audio from the terminal device 3 to the communication device 1 according to the result of the first-come-first-served priority processing circuit 5, and a second mixing device that mixes the audio from the receiver 9 and the audio from the terminal device 3. A circuit 17 is provided. Further, the sixth switch 18 in the configuration of FIG. 2 is removed.

[0007] Here, the communication device 1 transmits and receives audio to and from the control center. The PTT tone detection circuit 2 detects a PTT tone included in the transmitted voice from the control center in order to perform a first-come, first-served call. The terminal device 3 allows an operator to send and receive calls to the aircraft and the control center. A keying signal detection circuit 4 detects a keying signal from a terminal device in order to make a first-come, first-served call. The first-come-first-served priority processing circuit 5 processes the PTT included in the audio transmitted from the control center.
By tones and keying signals from the terminal equipment,
It is detected whether the voice from the control center or the terminal device arrives first. The PTT tone removal circuit 6 removes the PTT tone contained in the transmitted voice in order to output the transmitted voice from the control center to the transmitter. The first switch 7 normally selects and outputs the audio from the control center, and when the first-come, first-served priority processing circuit 5 gives priority to the terminal device side, it selectively outputs the audio transmitted from the terminal device 3. When the transmitter 8 receives the keying signal, it transmits the audio from the control center or the terminal device 3 to the aircraft. The receiver 9 receives audio from the aircraft, and outputs an AGC signal when receiving the audio. The second switch 10 is PTT
A keying signal is output to the transmitter 8 when the tone detection circuit 2 detects a PTT tone included in the transmitted voice from the control center or when the keying signal detection circuit 4 detects a keying signal from the terminal device 3.

The fourth switch 11 normally connects the receiver 9 to the antenna 20 and connects the receiver 9 to the antenna 20 when the PTT tone detection circuit 2 detects a PTT tone or when the keying signal detection circuit 4 detects a keying signal. The antenna 20 is connected to the transmitter 8. Further, the AGC signal detection circuit 12 detects the AGC signal from the receiver 9. AGC
The tone generation circuit 13 generates an AGC tone to notify the control center that the receiver 9 is receiving data. The third switch 14 is connected to the PTT tone detection circuit 2.
When a tone is detected, when a keying signal is detected by the keying signal detection circuit 4, or when an AGC signal is detected by the AGC signal detection circuit 12, the AGC tone is output to the control center.

[0009]The fifth switch 15 switches the wireless device 1,
That is, the audio from the terminal device 3 is output to the control center. Further, the first mixing circuit 16 mixes the audio from the receiver 9 and the AGC tone so that the control center can monitor that the receiver 9 is receiving. Then, the second mixing circuit 17 mixes the audio from the receiver 9 and the audio from the terminal device 3 so that the call from the terminal device 3 can be monitored at the control center.

0010

As explained above, the present invention provides switching for selectively connecting a transmitter and a receiver to an antenna based on a PTT tone included in audio from a control center and a keying signal from a terminal device. (4th switch) and PT
It is equipped with a switch (fifth switch) that outputs audio from the terminal device to the control center based on the T tone and keying signal, so the fourth selector switches the antenna between the transmitter and receiver. The antenna can be shared by the transmitter and receiver by switching, and even if the antenna is shared by the transmitter and receiver, the audio of the terminal device can be directly monitored by the fifth switch. Also, there is no delay even when the receiver is installed far away from the receiver.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of an air-to-air radio control device of the present invention.

FIG. 2 is a block diagram of a conventional air-to-air radio control device.

[Explanation of symbols]

1 Communication device 2 PTT tone detection circuit 3 Terminal device 4 Keying signal detection circuit 5 First-come-first-served priority processing circuit 6 PTT tone removal circuit 7 First switch 8 Transmitter 9 Receiver 10 Second switch 11 4th switch 12 AGC signal detection circuit 13 AGC tone generation circuit 14 Third switch 15 5th switch 16 First mixing circuit 17 Second mixing circuit 20 Antenna

Claims (2)

[Claims] Claim 1: A communication device that transmits and receives audio to and from a control center, a terminal device that allows an operator to transmit and receive audio, a transmitter that transmits audio from the control center and the terminal device to an aircraft, and an aircraft. an anti-aircraft radio control device configured to monitor sounds from the control center and the terminal device, the control device comprising: a receiver for receiving sound from the control center and the terminal device; a switch that selectively connects a transmitter and a receiver to an antenna based on a PTT tone and a keying signal from the terminal device; and a switch that outputs audio from the terminal device to a control center based on the PTT tone and keying signal. An anti-aircraft radio control device comprising: a switching device for controlling an airborne radio; [Claim 2] A communication device that transmits and receives audio to and from the control center, a PTT tone detection circuit that detects a PTT tone included in the transmitted audio from the control center, and a terminal device that allows an operator to send and receive calls. , a keying signal detection circuit that detects a keying signal from a terminal device, a first-come-first-served priority processing circuit that performs first-come-first-served processing using the PTT tone included in the transmitted voice from the control center and the keying signal from the terminal device, and a PTT tone removal circuit that removes PTT tones included in transmitted audio; a first switching device that selects and outputs audio from the control center and audio from the terminal device based on the results of the first-come-first-served priority processing circuit; and the first switching device a transmitter that transmits the audio selected by the aircraft to the aircraft; a receiver that receives the audio from the aircraft;
a second switch that outputs a keying signal to the transmitter according to the result of the PTT tone detection circuit or the keying signal detection circuit; and a second switch that selectively connects the transmitter and the receiver to the antenna according to the result of the PTT tone detection circuit or the keying signal detection circuit. A fourth switch that performs switching for
an AGC signal detection circuit that detects the C signal, an AGC generation circuit that generates an AGC tone, and a third switch that outputs the AGC tone to the control center based on the results of the PTT tone detection circuit, keying signal detection circuit, or AGC signal detection circuit. , a fifth switching circuit that outputs the audio from the terminal device to the control center according to the result of the first-come-first-served priority processing circuit, a first mixing circuit that mixes the audio from the receiver and the AGC tone, and the audio from the receiver and the terminal. An anti-aircraft radio control device comprising a second mixing circuit that mixes audio from the device.