JPH0420061A - Automatic program transmitter for disaster prevention administration radio system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) The present invention relates to an automatic program sending device constituting a disaster prevention administrative radio system used in municipalities, etc., and particularly relates to an automatic program sending device for recording audio by remote control. Regarding functions.

(Prior Art) Conventionally, this type of municipal disaster prevention administrative radio system has a configuration as shown in FIG. An automatic program sending device 1 automatically broadcasts a prerecorded voice message via a wireless device 3 at a program time set from an operation console 2. Normally, the voice message to be broadcast is recorded at a location where the operation console 2 and the automatic program sending device 1 are installed, but the recording may also be done by remote control via the public line 4 and subscriber telephone 5. .

When remotely controlling the recording section of the automatic program transmitting device 1 via this public line 4 and subscriber telephone 5, when the automatic program transmitting device 1 receives a recording start signal, it starts the recording section (not shown) and continues. Record incoming voice messages. Next, when a recording stop signal is received, the recording section is stopped to finish recording the voice message. Therefore, the recording start signal is such that the recording unit is started after receiving this start signal, so this start signal is not recorded, but the recording stop signal is such that the recording unit is stopped after this signal is received. Therefore, this recording stop signal is recorded at the end of the voice message.

Therefore, when a message recorded by remote control is played back and broadcast at a specified time as described above, the recording stop signal is also broadcast, and the people listening to the broadcast do not know the meaning of this signal. There were problems such as giving a sense of anxiety.

Therefore, in order to solve this type of problem, the following two methods have been conventionally adopted.

(1) The first method is to install a delay circuit on the automatic program sending device side that delays the signal sent via the public line, and to record the audio signal by the audio signal recording unit that is delayed for a certain period of time by this delay circuit. do. After that, when a recording stop signal is received, this signal is detected before the input to the delay circuit, and the recording section is stopped immediately upon detection. As a result, the recording section stops immediately after recording the voice message, and the recording stop signal, which is then delayed by the delay circuit and input to the recording section, is not recorded. However, when this method is adopted, B
Since BD elements and the like are expensive, the automatic program sending device has the disadvantage of being very expensive, especially when a long delay time is required.

(2) The second method is to divide the audio band and the control signal band, and for example, up to 3KH2 is used as the audio signal, and 3 to 3.4KH
z is assigned to a control signal and transmitted to the automatic program sending device 1 via the public line 4. On the other hand, if a low-pass filter for removing the control signal is provided on the automatic program sending device 1 side and the audio signal is recorded through this filter, the recording stop signal described above can be removed and only the audio signal can be recorded. be able to.

However, with such a configuration, the subscriber telephone 5
Since it does not have the function of transmitting signals in frequency bands other than tones, an additional device that can transmit the above-mentioned 3 to 3.4 KH control signal must be separately installed on the subscriber telephone side, and this additional device is extremely expensive. The disadvantage was that it was expensive.

(Problems to be Solved by the Invention) As described above, in the conventional automatic program sending device that has the function of recording a voice message by remote control, a recording stop signal instructing to stop recording is recorded after the voice message. To prevent this, methods have been used to record only the audio signal by delaying the recorded audio for a certain period of time, or by dividing the audio signal and control signal into bands. This method also had the disadvantage that the additional circuits and equipment were expensive and the system became expensive.

Therefore, the present invention aims to eliminate the above-mentioned drawbacks, and when recording a voice message by remote control, prevents the recording of the recording stop signal with a simple and inexpensive configuration, and records only the necessary voice message part. The purpose of the present invention is to provide an automatic program sending device that can perform the following tasks.

[Structure of the invention]

(Means for Solving the Problems) The present invention activates a recording means by an activation signal sent via a public line, and causes the recording means to record an audio signal subsequently sent via the same line, Thereafter, when a recording stop signal sent via the same line is received, the automatic program sending device of the disaster prevention administrative radio system, which has a remote recording function that stops the operation of the recording means, stops the recording means. , has a configuration including erasing means for erasing recorded portions that are a predetermined amount of time back from the last recording area recorded by the recording means.

As another configuration, the recording means is activated by an activation signal sent via the public line, the audio signal subsequently sent via the same line is made to be recorded by the recording means, and then the audio signal sent via the same line is recorded. In an automatic program sending device for a disaster prevention administrative radio system that has a remote recording function that stops the operation of the recording means upon receiving the transmitted recording stop signal, the recording stop signal is recorded immediately before the recording means stops. The recording apparatus has a configuration including a specifying means for specifying a recording area, and an erasing means for erasing the recording area specified by the specifying means when the recording means is stopped.

(Function) In the automatic program sending device for a disaster prevention administrative radio system of the present invention, when the recording means is stopped, the erasing means erases the recorded portion that goes back a predetermined period of time from the last recording area recorded by the recording means. .

As another feature of the structure, in the automatic program sending device for the disaster prevention administrative radio system of the present invention, the specifying means specifies the recording area of the recording stop signal recorded immediately before the recording means stops. The erasing means erases the recording area specified by the specifying means when the recording means is stopped.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings, in which the same parts as those of the conventional example are denoted by the same reference numerals. FIG. 1 is a block diagram showing an embodiment of an automatic program sending device of the present invention. Reference numeral 1 denotes an automatic program sending device which sends a pre-recorded voice message to the wireless device 3 at a predetermined time; 2 inputs system operation commands and performs operations such as setting a broadcast program for the voice message. 3 is a radio device that broadcasts input voice messages on radio waves; 4 is a public line; 11 is a control unit that plays voice messages, controls recording, and controls the entire automatic program sending device; 12 is a public a communication control unit that receives control signals and voice messages sent via line 4;
13 is an NCU that captures and releases the line, 14 is a timer unit that supplies time information, and 15 is an HDD that records and plays audio.
It is a recording and playback section such as.

Here, the recording and reproducing section 14 constitutes a recording means, the control section 11 constitutes an erasing means, and the control section 11 and the timer section 14 constitute a specifying means.

Next, the operation of this embodiment will be explained. When it is desired to record a voice message in the recording/playback unit 15 of the automatic program sending device 1 by remote control, first a telephone call is made to the automatic program sending device 1 using a subscriber telephone set at a remote location (not shown). As a result, N CUL 3 detects the paging signal and seizes the line. Next, the operator of the subscriber telephone operates a button to input a predetermined recording activation command. As a result, the control unit 11 of the automatic program sending bag W1 receives a start signal (MF tone) for the recording and playback unit 15 corresponding to the recording start command via the NCU 13 and the communication control unit 12.
Start up and set it to recording mode.

On the other hand, the operator of the subscriber telephone uses the subscriber telephone to send a voice message to be recorded. With this, public times!
! The voice message sent over the NCU
13 to the communication control unit 12, demodulated there, decompressed and digitized by the control unit 11, and then input to the recording/playback unit 15 to be recorded (written). . When the voice message is thus recorded in the recording and reproducing section 15, the operator of the subscriber telephone operates the button on the telephone to input a recording stop command to stop the operation of the recording and reproducing section 15.

As a result, when the control section 11 receives a recording stop signal corresponding to the recording stop command, it stops the operation of the recording/playback section 15, and receives the recording stop signal from the time information input from the timer section 14. will remember the time it was taken.

By the way, in this example, since the recording and reproducing section 15 is stopped after receiving the recording stop signal, the recording and reproducing section 15 has already recorded the recording stop signal at the time when the recording and reproducing section 15 is stopped. Therefore, the control unit 11 calculates the time from when the recording stop signal is received until the recording and playback unit 15 is stopped (actually, the time is slightly longer than this time with a margin), and The recorded area is erased by the recording and reproducing section 15 at a time (slightly longer than the current time), and the next control is started. Therefore, although a recording stop signal is temporarily recorded in the recording/reproducing section 15, it is immediately erased, so that in the end, only the voice message portion is recorded in the recording/reproducing section 15. Incidentally, if the time from when the recording stop signal is received until the control section 11 stops the recording/playback section 15 is approximately constant,
It is also possible to adopt a configuration in which, after stopping the recording/playback unit 15, the recorded green portion is erased from the area recorded after I& going back by the predetermined amount of time.

In this manner, when the recording by remote control is completed, the operator of the subscriber telephone hangs up the telephone receiver and hangs up the telephone, so that the control section 11 knows that the telephone line has been released and shifts to a standby state. Thereafter, when the control unit 11 learns that the predetermined time has arrived based on the time information supplied from the timer unit 14, it starts (accesses) the recording and playback unit 1 and reads the voice message recorded therein. After reading out and converting this voice message into analog, it is output to the wireless device 3 via the console 2. As a result, the wireless device 3 broadcasts the input voice message on radio waves.

FIG. 2 is a diagram showing an operation flowchart when the control section 11 shown in FIG. 1 stops recording a voice message. In step 201, it is determined whether or not a recording stop signal has been received. If not, in step 202, the operation of recording the voice message in the recording/reproducing section 15 is continued, and the process returns to step 201 again. If the recording stop signal is received in step 201, the process proceeds to step 203, where the recording operation of the recording/reproducing section 15 is stopped, and the time at which the recording stop signal is received is obtained from the timer section 14. Thereafter, the process proceeds to step 204, where the recording/playback section 15 specifies the recording area where the recording stop signal was recorded from the time when the recording stop signal was recorded, erases a certain portion of this recording area, and shifts to the next control. do.

According to this embodiment, since the recording operation of the recording/reproducing section 15 is stopped after receiving the recording stop signal, the recording/reproducing section 15 temporarily records the recording stop signal, but later stops the recording. Since the portion where the signal is recorded is erased, only the voice message portion can be recorded in the recording/playback section 15 after all. Moreover, the above-mentioned recording and playback section 1
Since there is no need to use expensive parts to erase the recording stop signal recorded in 5, the recording stop signal can be cut with a simple configuration without increasing the manufacturing cost of the automatic program sending device 1. It can be performed.

Although the recording and reproducing section 15 in the above embodiment is configured with an HDD, it is not limited to the HDD, and a so-called analog audio tape recorder or digital audio tape recorder can also be used. In this case, when the control unit 11 receives the recording stop signal,
The same effect as in the above embodiment can be obtained by rewinding the tape to the previous several seconds, erasing the recorded signal of this portion, and then stopping the recording/reproducing section 15.

3. Effects of the Invention] As described above, according to the automatic program sending device of the disaster prevention administrative radio system of the present invention, when recording a voice message by remote control, a recording stop signal can be recorded with a simple and inexpensive configuration. This allows you to record only the necessary parts of the voice message.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of an automatic program sending device for a disaster prevention administrative radio system according to the present invention, FIG. FIG. 3 is a block diagram showing an example of a conventional disaster prevention administrative radio system. 1...Automatic program sending device...Operation console 3...Radio device 11...Control section 12...Communication control section 13...NC/U 14...Timer section 15...Recording playback department

Claims (2)

[Claims] (1) Activate the recording means by the activation signal sent via the public line, cause the recording means to record the audio signal subsequently sent via the same line, and then record the audio signal sent via the same line. In an automatic program sending device for a disaster prevention administrative radio system, which has a remote recording function that stops the operation of the recording means when a recording stop signal is received, when the recording means is stopped, the last recording recorded by the recording means is An automatic program transmitting device for a disaster prevention administrative radio system, characterized in that it is equipped with an erasing means for erasing a previously recorded portion that goes back a predetermined time from a recording area. (2) Activate the recording means by the activation signal sent via the public line, cause the recording means to record the audio signal subsequently sent via the same line, and then record the audio signal sent via the same line. In an automatic program sending device for a disaster prevention administrative radio system having a remote recording function that stops the operation of the recording means when a recording stop signal is received, the recording area for the recording stop signal is recorded immediately before the recording means stops. 1. An automatic program transmitting device for a disaster prevention administrative radio system, comprising: a specifying means for specifying the recording area; and an erasing means for erasing the recording area specified by the specifying means when the recording means is stopped.