JP3287695B2 - Wireless communication equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio communication device, and more particularly, to a radio communication device having an alert signal generation function.

[0002]

2. Description of the Related Art Vessels of a predetermined size or more are capable of generating an acoustic signal for smooth navigation, and in particular, ships of 12 m or more are subject to stormy weather such as fog and storms. In order to avoid the occurrence of an accident such as a collision in a situation where the field of view is severely restricted, it is obligatory to emit an acoustic alert signal of a predetermined period (hereinafter referred to as an alert acoustic signal).

In order to generate the above-mentioned alert sound signal,
The ship is equipped with an alert signal generator equipped with an alert key, and the electrical alert signal from the alert signal generator is amplified by a large-output amplifier and speaker to transmit an alert signal. I have to. As shown in Table 1 below, the alerting sound signal has a predetermined format (length of time during which the acoustic signal is sounding, time interval between acoustic signals) according to the situation. The signal generating device is configured to include an alert key corresponding to each type.

[0004]

[Table 1]

[0005] On the other hand, it has been conventionally performed to provide a radio device used for a ship or the like with a loud speaker function. That is,
The input from the microphone is amplified by an amplifier without being input to the transmitting means, and directly amplified by a high-output speaker, or
The input from the receiving means is amplified by the speaker.

[0006]

The above-mentioned conventional alert signal generating device is separate from the radio, and the radio and the alert signal generating device have different functions. Vessels needed to be equipped with both an alert signal generator and a radio.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned conventional circumstances, and has a function of generating an alert signal in a wireless device, thereby eliminating the need to provide a signal generator separately from the wireless device. The purpose is to provide.

[0008]

The present invention employs the following means to achieve the above object. That is, as shown in FIG. 2, a PTT (push-to-talk) switch is turned on in a state where the loudspeaker key ShON is turned on, or a microphone input is received through the amplifier 60 while a loudspeaker key Sh is turned on. in the radio communication device having a loudspeaker unit leading to sp _2, and alerting signal generating means 20 for generating the alerting acoustic signal is an acoustic signal emitted in a predetermined format from the ship at the time of restricted visibility,
And alerting key Sf for operating the alerting signal generating means 20, in conjunction with the alerting new generation means 20, switching means for guiding alerting signal to generate the alerting sound signal to the speaker Sp ₂ 70.

In the above configuration, if the PTT switch is turned on after the generation of the alert signal while the alert key Sf and the loudspeaker key Sh are on, the microphone input is sent to the loudspeaker via the switch means 70. Guide switch system
The control device 80 is provided .

Further , based on the control of the switch control means 80,
The alert key Sf and the loudspeaker key Sh are ON
In this state, when the microphone input is at or above a predetermined level, the level detection means 50 for passing the microphone input is activated.
However, the switch means 70 may be configured to guide the microphone input to the loudspeaker .

[0011]

[Action] An alert key S for generating an alert signal
When f is turned on, the switch means 70 is turned on such that the alert signal from the alert signal generating means 20 is guided to the loudspeaker means.
And an alert sound signal is generated. On the other hand, the alert signal generating means 20 is provided with a timer, and the timer adjusts a time interval between the alert signal and the next alert signal.

When the alert key Sf is ON and the loudspeaker key Sh is also ON, the loudspeaker is activated. At this time, if the PTT switch is turned on while the alert signal is being generated, the switch means 70 operates so that the alert signal from the alert signal generating means is not guided to the loudspeaker means, and the alert sound is generated. Stop signal generation halfway. Further, in this state, the microphone input is guided to the loudspeaker.

[0013]

FIG. 2 is a functional block diagram showing an embodiment of the present invention, and FIG. 3 is a flowchart showing an operation procedure thereof.

In the wireless communication device to which the present invention is applied,
Similarly, it includes a transmitting unit 30 and a receiving unit 10. Above reception
The signal from the means 10 is a switch constituting the switch means 70.
Amplified by the amplifier 60 via the switch 72,
4 via the receiving speaker Sp ₁To make it work
I have. Further, the audio signal from the microphone Mic is supplied to the amplifier 40.
And is input to the transmitting means 30 via the switch 71.
The force is transmitted on a carrier wave. In addition, the present invention
Switches used for software
If it is a switch, it does not matter whether it is a hard switch.

Further, a wireless communication device to which the present invention is applied is a wireless communication device.
Pump 60 and speaker Sp_TwoIs equipped with
You. That is, the signal of the microphone Mic is connected to the switch 71 and the switch.
It is led to the amplifier 60 via the switch 73, where it is amplified.
And the speaker Sp via the switch 74_TwoActivate
You. The signal from the receiving means 10 is connected to the switch 72 and the switch.
The signal is guided to the amplifier 60 via the switch 73 and the switch 74
Through the speaker Sp _TwoActivate The above loudspeaker means
Select microphone output when active or receive
The PTT switch is ON to select the signal from 10
It depends on whether it is done. That is, the PTT switch is
N, the switch 73 is turned ON to the microphone side.
As a result, the microphone output is output to the amplifier 60.
When the PTT switch is OFF, the switch 73
The signal is turned on on the receiving means 10 side, and the output of the receiving means 10 is
As soon as the signal of the receiving means 10 is input to the amplifier 60
Will be.

Further, in the present invention, the alert signal generating means 20
Is provided, alerting signal from said alerting signal generating means 20 is inputted to the amplifier 60 via the switch 72 and 73, is amplified here, attention predetermined format from the speaker Sp ₂ via the switch 74 An arousing sound signal is output.

In the present invention, the switch means 70 comprising the switches 71 to 74 and the switches 71 to 74 are controlled in order to properly use the above-mentioned transmission / reception function, loudspeaker function, and alert signal generation function according to the purpose. Switch control means 80 is provided.

That is, in the above configuration, the alert key S
In the initial state where f and the loudspeaker key Sh are not ON,
Each of the switches 71 to 74 is turned on at each terminal as shown in Table 2 (A), and operates as a normal radio (step F11 in FIG. 3).

Next, when only the loudspeaker key Sh is turned on and the PTT switch is turned on, each of the switches 71 to 71 is turned on.
74 microphone output as ON to the terminals as shown in Table 2 (B ₁₎ is input to the amplifier 60, the speaker Sp ₂ is activated (Fig. 3, step F21 → F22: Y → F23) .
On the other hand, PTT switch is an OFF, the signal receiving means 10 when there is a received input is input to the amplifier 60, the speaker Sp ₂ is activated (Fig. 3, step F21 → F2
4: Y → F25).

The above operation is exactly the same as that of the conventional radio function and the loudspeaker function. Further, when only the alert key Sf is turned ON, the process shifts to the alert function of the present invention.
That is, the switches 71 to 74 are turned on at the respective terminals as shown in Table 2 (C) (FIG. 3, step F11 → F1).
2: Y → F13). A plurality of alerting keys Sf are provided, and each key is adapted to various formats having different sound lengths and time intervals between sounds.

Therefore, following the switch operation step, it is confirmed which alert key Sh has been pressed, and an alert signal is output to the amplifier 60 (FIG. 2, steps F14 → F15). Thus, alerting acoustic signal is output as an acoustic signal from the speaker Sp _2.

When the alert signal is output from the alert signal generating means 20, the switch control means 80 returns the switches 71 to 74 to the transmission / reception state shown in Table 2 (A) (FIG. 2, step F17). ). As a result, the radio is ready for transmission and reception.

Next, a timer is started to count a time interval until the next alerting sound signal is generated, and after a predetermined time has elapsed, the switch operation for generating the alerting signal is performed again. (FIG. 3, step F18 → F
19: Y → F12: Y → F13).

The case where only the alerting key Sf is ON has been described above. However, in the present invention, if the PTT switch is turned ON while the alerting key Sf is ON and the loudspeaker key Sh is ON. Then, the loudspeaker is activated and the state shifts to a state where the microphone input is input to the loudspeaker.

That is, first, it is checked whether or not the loudspeaker key Sh is turned on after the generation of the alert signal Sh.
When the T switch is turned on, the switch control means 80 displays the switches 71 to 74 constituting the switch means 70 in Table 2 (B ₂ ).
To the state shown in. As a result, the alert signal output from the alert signal generating means 20 is cut off by the switch 73, and the output from the microphone Mic is input to the amplifier 60.

Next, it is checked whether or not the loudspeaker key Sh is on before the timer starts and before the time expires. Here, the PTT switch is turned on while the loudspeaker key Sh is on. Each switch 71
74 are changed from the transmission / reception state to the loudspeaker state shown in Table 2 (B) (FIG. 3, step F22: Y → F23). As a result, as long as the PTT switch is ON, the loudspeaker operates.

When the PTT switch is turned off, the alert switch is turned on, and when the switches 71 to 74 are in the alert state (Table 2 (C)), the alert signal generating means is operated again, Generates an alert signal (FIG. 3, step F22: N → F24; N → F26: Y → F
27: N → F16). When the PTT switch is turned off and the switch means 70 is in the transmission / reception state, the process returns to the step of checking for time over again (FIG. 3, step F22: N → F26: Y → F27: Y).
→ F19).

FIG. 4 is a block diagram showing another embodiment of the present invention, and FIG. 5 shows the operation procedure. It is a flowchart which shows. The difference from the examples shown in FIGS. 2 and 3 is that the switch 7
The level detection means 50 is provided at the preceding stage of the device 1 and a switch 75 is further provided at the preceding stage. This switch 75 is normally turned on to the switch 71 side, and
After checking that the value is N (step F16), the level detection means 50 is turned ON (step F3).
0). This results in the microphone input is not output only predetermined threshold or more levels of the signal set to the level detection unit 50 to the speaker Sp ₂ in this state. That emits a ship or own ship's opponent operator loudly, particularly serious matter of urgency will be output from the speaker Sp _2.

Note that the alert signal generating means 20 may include an oscillating means and transmit the alert signal directly to the amplifier 60. It is a matter of course that the oscillating means may oscillate the alert signal based on the oscillation instruction signal output from the signal generating means 20.

[0030]

[Table 2]

As described above, the present invention incorporates the alert signal generation device into the wireless communication device, so that the wireless communication device does not need to bring a separate alert signal generation device into the ship, which is advantageous. .

Further, since the loud voice operation can be performed even during the alerting operation, the operator can transmit necessary information to the inside of the ship or another ship at any time by pressing the PTT switch.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a block diagram of one embodiment of the present invention.

FIG. 3 is a flowchart of the embodiment shown in FIG. 2;

FIG. 4 is a block diagram of another embodiment of the present invention.

FIG. 5 is a flowchart of the embodiment shown in FIG.

[Explanation of symbols]

20 alerting signal generating means 50 level detecting means 60 amplifier 70 switch means Sh loudspeaker key Sp ₂ speakers Sf reminder key

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-304491 (JP, A) Japanese Utility Model Showa 62-98350 (JP, U) Japanese Utility Model Showa 62-23798 (JP, U) Japanese Utility Model Showa 56-98 74538 (JP, U) Shokai Sho 56-104254 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04B 1/38-1/58

Claims (2)

(57) [Claims] 1. A PTT with a loudspeaker key (Sh) turned on.
(Push-to-talk) switch on
Therefore, turn on the microphone input or turn on the loudspeaker key (Sh).
The receiver receives the input signal through the amplifier (60)
(Sp ₂ ) A wireless communication device equipped with a loudspeaker
The sound signal emitted from the ship in a prescribed format when visibility is limited
Alert signal for generating an alert sound signal that is
Generating means (20) for operating the above-mentioned alert signal generating means (20).
In conjunction with the alert key (Sf) and the operation of the alert signal generating means (20),
The alert signal that generates the alert sound signal
When the switch means (70) for leading to the speaker (Sp ₂ ) and the alert key (Sf) and the loudspeaker key (Sh) are ON, the PTT (push-to-talk) switch is turned ON after the alert signal is generated. A wireless communication device comprising: switch control means (80) for guiding a microphone input to the loudspeaker means via the switch means (70). 2. The control circuit according to claim 2, wherein said switch control means controls said switch control means.
The alert key (Sf) and the loudspeaker key (Sh) are turned on.
In this state, when the microphone input is at or above a predetermined level, the level detection means (5
0) is activated, and the switch means (70) activates the microphone input.
The wireless communication device according to claim 1 , wherein the wireless communication device is configured to guide to a speaker .