JP3431401B2 - Automatic notification device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic notification device which is connected to a telephone line and sends a notification message to a predetermined notification destination when an emergency occurs.

[0002]

2. Description of the Related Art An automatic notification device of this type is activated by a push-button switch or a sensor when an emergency such as theft or fire occurs, and a preset telephone number of a call destination is set on a telephone line. Is transmitted through the communication destination, and when the other party of the report destination responds, a previously stored notification message is transmitted.

In this case, from the urgency of the notification, it is important that the other party of the notification can hear the notification message from the beginning. When the responding party hears the notification message halfway and the message information is incomplete, the responding party waits until the next message cycle, which may delay the response to an emergency situation that is competing momentarily. Is.

In order for the callee to hear the report message from the beginning, it is necessary to detect the response of the callee and send the report message after confirming that there is a response. Good.

The confirmation of the response can be generally performed by detecting the polarity reversal of the DC voltage between the communication lines. However, for group telephone calls for rural areas, emergency calls to the fire department (1
No. 19), in the case of a telephone line for emergency calls to the police station (No. 110), even if there is a response, the polarity reversal of the DC voltage between the communication lines does not occur. , Not applicable.

Therefore, the applicant previously filed Japanese Patent Application No. 60-4.
As No. 3476 (Japanese Patent Publication No. 3-24113), an automatic notification device is provided which can send a notification message after confirming the response of the other party of the notification destination, regardless of the type of telephone line.

The automatic notification device provided earlier includes level detection means for detecting the signal level between the communication lines after sending the telephone number of the notification destination, and voice detection means for detecting the presence or absence of a signal in the voice band. , 400 which is the frequency of the tone signal
400Hz detection means for detecting a signal of Hz, the response of the other party of the report destination is determined from the outputs of the level detection means, the voice detection means and the 400Hz detection means, and the notification message is displayed after confirming the response of the other party. I am sending it out.

That is, in the automatic notification device of the future, the ringback tone or busy tone being called is detected between the call lines from the detection output of the level detection means, the detection output of the voice detection means and the detection output of the 400 Hz detection means. It exists, and the other party of the callee is not responding yet,
Alternatively, the tone signal disappears, and it is possible to determine the state in which the other party of the callee responds and starts talking, or the state in which the other party of the callee does not speak even if the other party of the callee responds to the call. The notification message can be sent after certain confirmation.

[0009]

However, the above-described automatic notification device described above includes the level detecting means as described above,
A voice detection unit, a 400 Hz detection unit, and a determination unit for confirming a response from the detection output of these detection units are provided, and the determination result of the determination unit is supplied to the control unit including a microcomputer for control. Since the means controls the notification message sending means and the NCU (network control unit; network control circuit), the number of parts is large, the cost is high, the power consumption is large, and the maintenance is troublesome. was there.

In view of the above points, the present invention has a configuration in which the response of the other party of the report destination can be realized by software, so that the number of parts is small, the power consumption can be suppressed, and the automatic maintenance is easy. The purpose is to provide a reporting device.

[0011]

In order to solve the above problems, the automatic notification device according to the present invention is preset in accordance with a start signal when the reference numerals of the respective parts in the functional block diagram of FIG. Sent out the phone number
In an automatic notification device for transmitting a notification message, receiving a pulsing unit 5 for pulsating a signal between communication lines and an output signal of the pulsing unit 5 after transmitting the telephone number, the response of the reporting destination is received. And a response determination control unit 7 for controlling to start the transmission of the notification message when it is determined that the response destination has responded, and the response determination control unit 7 is a tone signal having a frequency near 400 Hz. Based on the counting result of the first counting means 11 and the first counting means 11 for counting the number of pulses of the output signal of the pulsing unit for each predetermined time longer than one cycle of The sound presence / absence determining means 12 for determining the presence / absence of a signal in the band, and the pulse cycle of the output signal of the pulsing unit 5 are measured, and the measured pulse cycle is equal to the cycle of the tone signal. It determines period measuring judging means 1
3, second counting means 14 for counting the number of pulse cycles measured by the cycle measurement determining means 13 that are equal to the pulse cycle of the tone signal during the predetermined time, and the first counting means 14. A tone / other voice determination means 15 that compares the count result of the count means 11 with the count result of the second count means 14 and distinguishes the tone signal from the signal in another voice band based on the comparison result. Based on the determination result of the voice presence / absence determining means 12 and the determination result of the tone / other voice determining means 15,
And a response determination means 17 for determining the response of the report destination.

[0012]

In the automatic notification device having the above-mentioned structure, when the automatic notification device is activated and the telephone number of the notification destination is transmitted, each means of the response determination control section 7 determines the response of the other party of the notification destination as follows. Is done.

First counting means 1 of the response judgment control section 7
The count value of 1 is obtained by the pulse forming unit 5 during the predetermined time.
It is zero when no pulse appears in the output signal of. When a pulse appears in the output signal of the pulsing unit 5, the first counting means 11 counts the number of pulses for each predetermined time. The sound presence / absence determining means 12 is configured to perform the first time measurement at every predetermined time.
If the count value of the counting means 11 is zero, it is detected that there is no sound during the predetermined time, and if the count value is not zero, it is detected that there is a signal in any voice band during the predetermined time.

Further, the period measuring / judging means is the pulsing unit 5.
Measure the pulse cycle of the output signal of. Then, during the predetermined time, the measured pulse period is 400 H
The second counting means 14 counts the number of times determined to be equal to the period of the tone signal having a frequency near z.

Therefore, when a tone signal such as a ring back tone or a busy tone appears between the call lines, the count value of the first counting means 11 and the count value of the second counting means 14 become equal. This is because when these tone signals exist between the communication lines, no other signal exists.

When there is a signal in the voice band other than the tone signal between the call lines, the count value of the first counting means 11 and the count value of the second counting means 14 are different. This is because it is rare that a signal of 400 Hz is continuously included in the call voice.

The tone / other voice judging means 15 compares the count results of the first and second counting means 11 and 14 and judges whether the signal appearing between the communication lines is a tone or another signal. To do.

The response determining means 17 is a voice presence determining means 1
Based on the determination result of the presence or absence of a signal in the voice band by 2,
When it is detected that the silence has continued for a certain period of time or more, for example, it is determined that the callee responds with silence. When it is determined by the voice presence / absence determining unit 12 whether or not there is a voice band signal between the call lines, the tone / other voice determining unit 15 is referred to and the call line is referred to. When it is detected that the signal existing between them is a ringback tone or a busy tone, it is detected that the other party is not responding yet. Further, when it is determined by the determination result of the tone / other voice determination means 15 that the signal existing between the communication lines is a signal other than the ringback tone or the busy tone, it is determined that there is a response by the voice of the other party of the report destination. To do.

Then, by the judgment of the response judging means,
When it is determined that the other party of the report destination has responded, a report message is sent.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of an automatic notification device according to the present invention will be described below with reference to the drawings.

As shown in the block diagram of FIG. 2, the automatic notification device of this embodiment has a network control circuit 2 connected to a telephone line 1, a message transmission circuit 3, a dial transmission circuit 4, and a pulsed circuit. It is composed of a circuit 5, a starting means 6, and a control section 7 which also functions as a response determination control section.

The network control circuit 2 is the same as the one generally used in the past, and performs line acquisition, transmission of dial signals from the dial transmission circuit 4, and the like. The message sending circuit 3 holds a notification message in advance in a magnetic tape, a memory of a voice synthesis circuit, or the like, and sends the notification message to the telephone line 1 via the network control circuit 2 according to an instruction from the control unit 7.

The dial sending circuit 4 holds the telephone number of the report destination in advance, and sends the telephone number of the report destination to the telephone line 1 through the network control circuit 2 according to an instruction from the control unit 7.

The pulsing circuit 5 is connected to the network control circuit 2 by the line 10, and compares the level of the signal in the voice band appearing between the communication lines with a predetermined reference level to pulse the signal.
The pulse signal S5 is obtained, and the pulse signal S5 is input to the control unit 7.

The starting means 6 is composed of a push button switch, a sensor or the like, and is provided with a control unit 7 when an emergency occurs.
Give a start signal to.

The control unit 7 in this embodiment is
CPU composed of a microcomputer
71, and a ROM 72 for storing various programs,
A RAM 73 mainly serving as a work area is provided, and the network control circuit 2, the message sending circuit 3 described above,
A plurality of input / output ports 7 for exchanging input / output with the dial sending circuit 4, the pulse converting circuit 5, and the starting means 6.
4 to 78 are provided.

Upon receiving the activation signal from the activation means 6 through the port 78, the control section 7 sends a control signal to the network control circuit 2 through the port 74 to drive the network control circuit 2. The network control circuit 2 captures the telephone line 1 accordingly. After confirming that the telephone line 1 has been captured, the control unit 7 gives a dial transmission instruction to the dial transmission circuit 4 through the port 75. Then, the dial sending circuit 4 sends the telephone number of the call destination to the telephone line 1 through the network control circuit 2. After dialing out as described above, the network control circuit 2 connects the line 10 to the telephone line 1 so that the signal arriving at the telephone line 1 is input to the pulse forming circuit 5.

After sending the dial, the control section 7 takes in the output signal of the pulse conversion circuit 5 through the port 77.
Then, a response determination control process as described in detail later is performed,
After confirming the response of the other party of the report destination, the network control circuit 2 is controlled through the port 74 to disconnect the line 10 from the telephone line 1, and a message transmission instruction is sent to the message sending means 3 through the port 75. Message sending means 3
Sends the notification message held by this instruction to the telephone line 1 through the network control circuit 2.

In the response determination control process, the control unit 7 also responds when the other party of the report destination does not respond for a certain period of time,
When the other party is busy and busy, the automatic notification operation is also performed again from the line capturing operation.

The response determination control process executed by the control unit 7 is shown in a functional block diagram centering on its processing function as shown in FIG.

That is, the response determination control section as the function of the control section 7 includes the input pulse number counting means 11, the voice presence / absence determination means 12, the pulse period measurement determination means 13, 4
This is executed by the 00 Hz detection counting means 14, the tone / other voice determination means 15, the tone type determination means 16, the response determination means 17, and the notification control means 18.

The input pulse number counting means 11 converts a tone signal or a signal in another voice band into a pulse S5 by the pulsing circuit 5 when a tone signal or a signal in another voice band appears between the communication lines of the telephone line 1. The number of pulses is measured. For example, by counting the falling edges of the pulse S5,
Although the number of pulses is counted, it is reset by the signal Ts having a constant cycle. Therefore, the input pulse number counting means 11 measures the number of input pulses from the pulsing circuit 5 for each period of this signal Ts.

In this case, the period of the signal Ts is selected to be a value that can count a plurality of pulses of a voice signal and a tone signal during the period. The frequency of the tone signal is 350H
z to 450 Hz (one cycle is 2.2 to 2.9 milliseconds), and the frequency of the audio signal is 300 Hz to 1500 Hz (1
Since the period is 0.67 to 3.33 milliseconds), Ts = 16.67 milliseconds is selected in this embodiment.

Then, the first counting means 11 supplies the count value output S11 of the input pulse S5 at every 16.67 ms interval to the voice presence / absence determining means 12 and the tone / other voice determining means 15.

The voice presence / absence determining means 12 fetches the output count value S11 from the input pulse number counting means 11 at every 16.67 millisecond interval in synchronization with the signal Ts, and from this output count value S11, the voice band is obtained. The presence or absence of the signal of is determined.

That is, when the voice band signal does not appear on the telephone line 1, the input pulse number counting means 11
Since the output count value S11 of the above is zero, it is necessary that the count value S11 is zero for a certain time or more, for example, 10 seconds.
When it continues for more than a second, it is determined that the telephone line 1 is in a silent state. When the output count value S11 of the input pulse number counting means 11 is not zero but is 1 or more, it is determined that there is a voice band signal on the telephone line 1. The voice presence / absence determining means 12 determines the tone type determining means 16 based on the determination output S12 of the presence / absence of a signal in the voice band.
And to the response determination means 17.

In this embodiment, the pulse period measuring / judging means 13 measures the period of the pulse S5 from the pulsing circuit 5 and judges whether or not it can be regarded as equal to the period of the tone signal. In the case of this embodiment, as shown in FIG. 3, the pulse cycle measurement determining means 13 measures the interval from the falling edge of the input pulse S5 to the next falling edge as the count value of a cycle counter (not shown). To do.

That is, the pulse period measurement determining means 13
Includes a cycle counter that counts clock pulses having a frequency sufficiently higher than the frequency of the input pulse S5. The cycle counter is reset (count value is cleared to zero) at the falling edge of the input pulse S5 and is reset. The count value immediately before is acquired as the pulse cycle, and the cycle is measured from the count value.

Then, the measured pulse period is 350 to 4
If it can be regarded as the period of the signal of 50 Hz, 400 Hz
The detection pulse S13 is supplied to the counting means 14.

The 400 Hz counting means 14 counts the number of the detection pulses S13. And this 40
The 0 Hz counting means 14 receives 16.6 by the signal Ts.
It is reset every 7 milliseconds and the count value is cleared to zero. Therefore, the 400 Hz counting means 14
The number of detection pulses S13 every 6.67 milliseconds is counted. Then, this 400 Hz counting means 14
The count value output S14 every 6.67 milliseconds is supplied to the tone / other voice determination means 15.

The tone / other voice judging means 15 determines the output count value of the input pulse number counting means 11 and 400 Hz.
The output count value S14 of the counting means 14 is used as a signal T
When the two count values are fetched in synchronism with s and the two count values can be judged to be equal, the input pulse S5
Is determined to be a tone signal such as a ringback tone or a busy tone, and if it can be determined that the count values do not match, the input pulse S5 is determined to be a signal in a voice band other than the tone signal. Signals in the voice band other than tone signals also include signal components of 350 to 450 Hz,
This is because it is rarely continuously included for a certain time or more, for example, 16.67 milliseconds or more.

Then, the tone / other voice judging means 15
The judgment output S15 is supplied to the tone type judging means 16 and the response judging means 17.

The tone type determining means 16 synchronizes with the signal Ts and outputs a determination output S12 of silence from the voice presence determining means 12 and a determination output S15 from the tone / other voice determining means 15 every 16.67 milliseconds. And are taken, and the duration of the tone signal and the duration of silence are measured.

Then, the tone type determination means 16 determines whether the determined tone signal is a busy tone or a ring back tone based on the alternating duration of the tone signal and the silence. In this embodiment, as shown in FIG. 4A,
When the tone signal continues for 1 second and the silence continues for 2 seconds alternately a plurality of times, for example, three times, it is determined to be a ringback tone, and as shown in FIG.
When 5 seconds and 0.5 seconds of silence are alternately repeated a plurality of times, for example, 5 times, it is determined as a busy tone. Then, the tone type determination means 16 supplies the tone type determination output S16 to the response determination means 17.

The response determining means 17 synchronizes with the signal Ts and outputs the silence detection output S12 of the voice presence determining means 12 and the determination output S15 from the tone / other voice determining means 15 every 16.67 milliseconds. The tone type determination output S16 from the tone type determination means 16 is acquired.

Then, the response determining means 17 determines that the determination output S15 from the tone / other voice determining means 15 is a signal in a voice band other than the tone signal, that is, it is a response voice of the other party of the callee. When it is detected that the time has continued, for example, 700 milliseconds, it is determined that the other party has responded, and the fact is supplied to the notification control means 18.
In response to this, the notification control means 18 sends a notification start instruction to the notification message sending circuit 3.

Further, when the response determining means 17 detects from the silence determination output S12 from the voice presence / absence determining means 12 that silence has continued for a certain period of time, for example, 10 seconds,
It is determined that there is a response from the other party, and the fact is supplied to the notification control means 18. The notification control means 18 receives this and
A notification start instruction is sent to the notification message sending circuit 3.

When the tone type determination output S16 from the tone type determining unit 16 means that a busy tone is detected, the response determining unit 17 supplies the notification control unit 18 to that effect. Notification control means 18
In response to this, sends a control signal to the network control circuit 2 to temporarily open the telephone line. Then, the line is captured again, and the operation control is performed so that the telephone number sending operation to the report destination is performed again.

Further, the response determination means 17 means that the tone type determination output S16 from the tone type determination means 16 detects a ringback tone,
When it is determined that this has continued for a fixed time, for example, about 34 seconds, the fact is supplied to the notification control means 18. In response to this, the notification control means 18 sends a control signal to the network control circuit 2 to temporarily open the telephone line, capture the line again, and control the operation so as to restart the telephone number sending operation to the destination. To do. As a result, it is possible to increase the chances of the other party of the callee to respond, and it becomes possible to more reliably send the emergency call to the callee.

The control unit 7 performs the above-described functional operations of FIG.
Is actually implemented by software. A response determination processing routine that is actually executed by the control unit 7 will be described with reference to the flowcharts of FIGS.

FIG. 5 is a main routine 1 of the response judgment processing.
00 is a flowchart. That is, when the power of the automatic notification device is turned on and the operation of the device is started, the automatic notification device waits for the input of the activation signal (step 101).

In this state, when the start button is pressed or an abnormality is detected by the sensor and a start signal is input to the control section 7, the control section 7 controls the network control circuit 2 to make a telephone line. Is captured (step 102). Then, after detecting that a dial tone has been obtained on the telephone line (step 103), a number sending instruction is sent to the dial sending circuit 4 to perform a dial call operation to the callee (step 1).
04). In this case, the control unit 7 also detects the dial tone in step 103 by the pulse S from the pulsing circuit 5.
5 is taken in and is performed using the tone type determination means 16 in the same manner as described above.

After dialing the call destination in step 104, the telephone line 1 and the line 10 are connected by the network control circuit 2, and the timer interrupt processing routine for every 16.67 milliseconds and the pulsing circuit 5 Execution with the interrupt processing routine by the pulse edge (falling in this example) of the pulse S5 is permitted (step 105).

Therefore, the pulse edge interrupt processing routine 200 of FIG. 6 and the timer interrupt processing routine 300 of FIG. 7 can be executed.

That is, when the pulse output S5 is obtained from the pulsing circuit 5, the pulse edge interrupt processing routine 200 is started by the falling edge of the pulse output S5, and the count value CA (= S1) of the input pulse number counter.
1) is incremented by "1" (step 20)
1).

Next, after obtaining the count value of the pulse cycle measurement counter at the time of the fall, that is, the count value CB corresponding to the time (pulse cycle) from the previous fall to the current fall The count value of the pulse period measurement counter is cleared, and the period measurement from this fall is started (step 202).

Next, it is judged from the acquired count value CB whether or not the frequency of the input pulse S5 is 350 to 450 Hz (step 203). If the frequency of the input pulse S5 is not 350 to 450 Hz, this routine 200
And the process returns to the main routine 100. If the frequency of the input pulse S5 is 350 to 450 Hz, 4
After counting up the count value CC (= S14) of the 00 Hz counter by "1" (step 20)
4) The routine 200 is ended and the process returns to the main routine 100.

The input pulse number counter of step 201 of this routine 200 corresponds to the input pulse number counting means 11 described above, and the pulse period measurement counter of step 202 and the determination step of step 203 correspond to the pulse period measurement determination means 13. To do. Also, step 204
The 400 Hz counter is a 400 Hz counting means 14
Equivalent to. The count value CA of the input pulse number counter and the count value CC of the 400 Hz counter are cleared by the timer interrupt processing routine 30 as described later.
0 in step 305.

In parallel with the interrupt processing routine of FIG.
Interrupt processing routine 3 in FIG. 7 is executed every 16.67 milliseconds.
00 is started.

That is, first, it is determined whether or not the count value CA of the input pulse number counter is zero (step 30).
1). If the count value CA is zero, it is 1 before that.
During 6.67 milliseconds, it is determined that the pulse output S5 does not appear between the communication lines and is in a silent state, and if the count value CA is not zero, it is determined that the pulse output S5 appears in the voiced state.

Then, in step 301, the pulse output S
When it is determined that 5 appears, the count value CA of the input pulse number counter and the count value CC of the 400 Hz counter are compared to determine whether the two count values are equal (step 302). As described above, when both count values are equal, it is determined that the signal in the voice band between the communication lines is a tone signal, and when both count values are not equal, it is determined that the signal is in another voice band.

When it is determined that the signal in the voice band between the communication lines is a tone signal, whether the tone signal continues for 1 second and the silence continues for 2 seconds alternately, for example, three times. Make a determination (step 303), and if so,
It is determined that a ringback tone has been detected (step 3).
04). And input pulse number counter and 400H
After clearing the z counter (step 305), the interrupt processing routine 300 ends.

As a result of the judgment in step 303, if it is judged that the tone signal does not continue for 1 second and the sound does not continue for 2 seconds, or that it does not last three times, the tone signal continues for 0.5 second. Then, it is determined whether or not the silence continues for 0.5 seconds alternately a plurality of times, for example, 5 times (step 30
6) If so, it is determined that a busy tone has been detected (step 307). Then, the execution of the timer interrupt processing routine 300 and the pulse edge interrupt processing routine 200 is prohibited (step 308), and thereafter, the process proceeds to step 305, where the input pulse number counter and 4
After clearing the 00 Hz counter, the interrupt processing routine 300 ends.

As a result of the judgment in the step 306, when it is judged that the tone signal is not continued for 0.5 seconds and the silence is not continued for 0.5 seconds, or it is not the case where the tone signal is continued 5 times, the process proceeds to step 305. Then, after the input pulse number counter and the 400 Hz counter are cleared, the interrupt processing routine 300 is ended.

As a result of the determination in step 302, when the count value CA of the input pulse number counter and the count value CC of the 400 Hz counter do not match and it is determined that the pulse output S5 is not a tone signal, the count values do not match. It is determined whether the state has continued for a certain period of time, for example, 700 milliseconds (step 309). And step 30
When it is judged in 9 that it has continued for 700 milliseconds or more,
It is determined that the call voice of the other party is detected (step 31).
0). Then, the process proceeds to step 308, the execution of the timer interrupt processing routine 300 and the pulse edge interrupt processing routine 200 is prohibited, and then the process proceeds to step 305 to clear the input pulse number counter and the 400 Hz counter, and terminate the interrupt processing routine 300. To do.

If it is determined in step 309 that the duration has not continued for 700 milliseconds or longer, step 305
After clearing the input pulse number counter and the 400 Hz counter by proceeding to step 3, this interrupt processing routine 300
To finish.

When it is determined in step 301 that the count value CA of the input pulse number counter is zero, it is determined whether or not it continues for 10 seconds or more (step 311). When it is determined that the other party has continued for 10 seconds or more, it is determined that the other party is responding but there is no sound (step 312). Then, the process proceeds to step 308, the execution of the timer interrupt processing routine 300 and the pulse edge interrupt processing routine 200 is prohibited, and then the process proceeds to step 305 to clear the input pulse number counter and the 400 Hz counter, and terminate the interrupt processing routine 300. To do.

If it is determined in step 311 that silence has not continued for 10 seconds or more, step 30
After proceeding to step 5 to clear the input pulse number counter and the 400 Hz counter, this interrupt processing routine 30
0 ends.

Step 301 corresponds to the voice presence / absence determining means 12 in FIG. 1, and step 302 corresponds to the tone / other voice determining means 15. Further, steps 303 and 306 correspond to the tone type judging means 16. Further, steps 304, 307, 310 and 312 correspond to the response determination means 17.

As described above, the pulse edge interrupt processing routine 200 and the timer interrupt processing routine 300 determine whether or not there is a response from the notification destination.
In step 106, it is monitored whether or not the detection result is obtained in any of 07, 310, and 312 and the identification of the state regarding the response of the report destination is confirmed. Then, in step 30
When a detection result is obtained in any of 4, 307, 310, and 312, the process proceeds from step 106 to step 107.

In step 107, the detection result determines whether or not the other party responds and there is a communication voice, or whether the other party responds but is silent. When it is determined that the state is any one, step 108
Then, the network control circuit 2 is controlled to disconnect the line 10 from the telephone line 1 and to instruct the message sending circuit 3 to send a notification message.

Then, in step 109,
Open the line and wait for confirmation from the callee.
Then, when an incoming call (reverse call) from the callee is detected in step 110, a call is made in step 111, a call end process is performed in step 112, and then the process returns to step 101 to return to the standby state of the activation signal. .

If it is determined in step 107 that the other party responds and there is a communication voice, or that the other party responds but is in a silent state,
Step 12 assuming that the tone signal appears on the telephone line
In step 1, the tone signal determines whether it is a busy tone or a ringback tone. If it is determined to be a busy tone, the flow proceeds to step 124 to open the line, and then returns to step 102 to repeat the notification process from the line acquisition process.

When the judgment result in step 121 is the ring back tone, the routine proceeds to step 122, where it is judged whether or not the ring back tone has continued for a fixed time, for example, 34 seconds, and 34 seconds have passed. If not, the process returns to step 106 and waits for the response determination to be finalized.

Then, the ringback tone state is 34
If it is determined that the timer has continued for more than a second, the process proceeds to step 123, the execution of the timer interrupt processing routine 300 and the pulse edge interrupt processing routine 200 is prohibited, and then the process proceeds to step 124 to open the line. And
Returning to step 102, the notification processing from the line acquisition processing is redone.

As described above, according to this embodiment, the signal between the communication lines after dialing to the callee is taken into the control section 7 provided with the microcomputer through the pulse conversion circuit 5, and the software processing is performed. With this configuration, it is possible to judge the response of the callee, so that the hardware configuration becomes very simple and maintenance and inspection becomes easy.

Then, the judgment of silence and the presence of sound is made by the count value of the input pulse number counter for counting the pulses from the pulsing circuit 5, and the judgment of the tone signal and the signal in the other voice band is made by the input. 400H pulse number counter
The software configuration is very simple because it is configured to be performed by comparing the count values of the z counter.

Further, in the above-mentioned embodiment, when the busy tone is detected from the state between the communication lines after dialing to the callee, the automatic call is made again immediately, so that the urgency is increased. You can make the notifications you have more quickly.

Similarly, even when the ringback tone continues for a certain period of time or more, the automatic notification is configured to be redone, so that the other party of the notification has more chances to respond and a more reliable notification can be obtained. You can do it.

[0080]

As described above, according to the present invention, a pulse circuit for pulsing a signal between communication lines and a circuit section for determining a response to a report destination by a control section equipped with a microcomputer are provided. Since the configuration is such that it can be configured, it is possible to realize an automatic notification device in which the configuration of the device is easy, the cost is low, the power consumption is suppressed, and the maintenance is easy.

Also, when the line is blocked, such as when the other party is busy, the re-notification process is performed immediately, so that an urgent report is sent to the destination more reliably. be able to.

[Brief description of drawings]

FIG. 1 is a functional block diagram of essential parts of an embodiment of an automatic notification device according to the present invention.

FIG. 2 is an overall block diagram of an embodiment of an automatic notification device according to the present invention.

FIG. 3 is a diagram for explaining the operation of the embodiment of the automatic notification device according to the present invention.

FIG. 4 is a diagram for explaining the operation of the embodiment of the automatic notification device according to the present invention.

FIG. 5 is a flowchart for explaining a main part of an embodiment of an automatic notification device according to the present invention.

FIG. 6 is a flowchart for explaining a main part of an embodiment of an automatic notification device according to the present invention.

FIG. 7 is a flowchart for explaining a main part of an embodiment of an automatic notification device according to the present invention.

[Explanation of symbols]

1 telephone line 2 network control circuit 3 Message sending circuit 4 Dial sending circuit 5 pulse circuit 6 Starting means 7 control unit 71 CPU 72 ROM (for program)

Front page continuation (72) Inventor Ichiro Yoshikawa, 3-8-21 Toranomon, Minato-ku, Tokyo Inside the Telecommunications Mutual Aid Foundation (56) References JP-A-1-218161 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) H04M 11/00-11/10

Claims (3)

(57) [Claims] 1. An automatic notification device for transmitting a preset telephone number and a notification message in response to a start signal, and a pulsing unit for pulsing a signal between communication lines, and the telephone number A response determination control unit that receives the output signal of the pulsing unit after the transmission, determines the response of the report destination, and controls the transmission of the notification message to start when the report destination determines that the response has been made; Wherein the response determination control unit counts the number of pulses of the output signal of the pulsing unit for each predetermined time longer than one cycle of the tone signal having a frequency near 400 Hz. And a voice presence / absence determining means for determining the presence / absence of a signal in the voice band based on the count result of the first counting means, And a period measurement determining unit that determines whether the pulse period is equal to the period of the tone signal, and the pulse period measured by the period measurement determining unit during the predetermined time is the pulse period of the tone signal. Second counting means for counting the number of pieces that are judged to be equal to each other, the counting result of the first counting means and the counting result of the second counting means are compared, and the tone signal is obtained from the comparison result. , A tone / other voice determination means for distinguishing signals from other voice bands, a determination result of the voice presence determination means, and a determination result of the tone / other voice determination means, An automatic notification device comprising: a response determination means for performing determination. 2. The determination control section includes a CPU, and each of the first counting means, the second counting means, a voice presence / absence determining means, a tone / other voice determining means, and a response determining means has a software function. The first counting means, the cycle measurement determining means, and the second counting means are executed by an interrupt process in which an interrupt is started by an edge of a pulse of an output signal of the pulsing unit. The automatic notification device according to claim 1, wherein the voice presence / absence determining means, the tone / other voice determining means, and the response determining means are executed by interrupt processing at predetermined time intervals. 3. An automatic notification device for transmitting a preset telephone number and a notification message in response to a start signal, and a pulsing unit for pulsing a signal between communication lines, and the telephone number A response determination control unit that receives the output signal of the pulsing unit after the transmission, determines the response of the report destination, and controls the transmission of the notification message to start when the report destination determines that the response has been made; The response determination control unit counts the number of pulses of the output signal of the pulsing unit for each predetermined time longer than one cycle of the tone signal having a frequency near 400 Hz. Means, based on the count result of the first counting means, a sound presence / absence determining means for determining the presence / absence of a signal in a voice band, and measuring the pulse cycle of the output signal of the pulsing unit, A period measurement determination unit that determines whether the measured pulse period is equal to the tone signal period, and the pulse period measured by the period measurement determination unit during the predetermined time is the tone signal pulse period. A second counting means for counting the number of pieces judged to be equal to the first counting means, a counting result of the first counting means and a counting result of the second counting means are compared, and the tone signal is obtained from the comparison result. And the tone / other voice determining means for distinguishing the signal from other voice band, the determination result of the voice presence determining means and the determination result of the tone / other voice determining means, and the continuation of the tone signal. A tone that determines whether the tone signal detected by the tone / other voice determination means is a busy tone or a ringback tone based on the relationship between the time and the duration of silence. A judgment as to whether or not the notification destination has responded, by receiving the separate judgment means, the judgment result of the voice presence judgment means, the judgment result of the tone / other voice judgment means, and the judgment result of the tone type judgment means. ,
A response determination unit that determines whether the report destination is busy and a response determination unit that starts to send the report message when the response determination unit receives a determination result that the report destination responds. And a response control means for receiving a determination result from the response determination means that the report destination is busy and once, disconnects the line and controls to perform redialing. An automatic notification device comprising: