JPH04116453U - Automatic notification device - Google Patents

Abstract

(57) [Summary] [Purpose] To enable an automatic reporting device to automatically determine the type of telephone line for making a report and determine the dialing method without using a dedicated detection circuit. It is an object. [Structure] In response to the occurrence of a reporting factor, the automatic dialing means 1a automatically dials a predetermined telephone number of a reporting destination using one of the predetermined dialing methods of the telephone line. Thereafter, when the signal detecting means 1b does not detect a signal from the destination, the dialing method changing means 1c changes the dialing method to the other method. Using this changed dialing method, the automatic dialing means 1a automatically dials the predetermined telephone number of the notification destination again.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an automatic notification device, and in particular, automatically changes the type of telephone line for making a report. Regarding an automatic notification device that can determine the dialing method based on It is.

0002

[Conventional technology]

Conventionally, for example, LPG distributors and LPG consumers each have an information center and a terminal. A communication line consisting of a telephone line is used to connect the terminals to the information center. We regularly report gas meter reading information to customers, provide warnings for gas exhaustion, detect gas leaks, etc. A device that can report emergency information at any time is being considered.

0003 By the way, the above communication line is the telephone line of the telephone subscribed to by the consumer. Find a time when the telephone line is not being used for telephone calls and make a report. However, telephone lines are equipped with rotary dials (D There are two types: P) lines and push-button dial (PB) lines. Therefore, For automatic dialing when making a report, a method must be adopted depending on the type of telephone line. However, it is not known in advance which line the consumer's subscriber phone is on. There are quite a few.

0004 Therefore, in the past, it was possible to make a report without knowing the subscriber line of the customer's subscriber phone. Automatically determines the type of telephone line and determines the dialing method. An automatic notification device having a configuration as shown in FIGS. 4 and 5 has been proposed.

In the device shown in FIG. 4, when the notification control circuit 1 detects the occurrence of a notification factor, the notification control circuit 1 creates a pseudo-raised state of the handset in response to this, and monitors the output of the dial tone detection circuit 2. do. Automatic dialing of the telephone number of the predetermined destination is performed, and when the other party is connected, the dial tone stops, so when there is no signal at the output of dial tone detection circuit 2, it is compatible with telephone lines L ₁ and L ₂ . It can be determined that dialing was performed using the specified dialing method.

[0006] Therefore, when there is a signal in the output circuit of the dial tone detection circuit 2, it is determined that the dialing method is not compatible with the telephone lines _L1 and _L2 , and accordingly, the notification control circuit 1 changes the dialing method. , and then automatically dials the predetermined telephone number of the notification destination again.

[0007] When the notification destination is connected through the automatic dialing described above, the notification control circuit 1 connects to the modem (modulator/demodulator) 6 and coupling transformer 3 to make a predetermined notification.

[0008] In the device shown in FIG. 5, when the notification control circuit 1 detects the occurrence of a notification factor, the notification control circuit 1 Talk line L₁and L₂The output of the polarity inversion circuit 7 is monitored. Telephone number of predetermined reporting destination When the number is automatically dialed and you are connected to the other party, the telephone line L₁and L ₂ Since the polarity of is reversed, when there is a signal at the output of the polarity reversal detection circuit 7, the voltage Talk line L₁and L₂It can be determined that dialing was performed using a dialing method that is compatible with the Ru.

[0009] Therefore, when there is no signal in the output circuit of the polarity reversal detection circuit 7, it is determined that dialing has been performed using a dialing method that is not compatible with the telephone lines _L1 and _L2 , and accordingly, the notification control circuit 1 Change the dialing method and automatically dial the predetermined destination phone number again.

0010 When the notification destination is connected through the automatic dialing described above, the notification control circuit 1 connects to the modem (modulator/demodulator) 6 and coupling transformer 3 to make a predetermined report.

[0011]

[Problem that the idea aims to solve]

In the conventional automatic reporting device described above with reference to FIGS. 4 and 5, the type of telephone line can be determined. In order to disconnect, a coupling transformer 3, a modem 6, a PB signal dial circuit 4 and a DP A dial tone detection circuit is installed in the network control unit (NCU) that shakes the signal dial circuit 5. The problem is that it requires a circuit 2 or a polarity reversal detection circuit 7, which leads to an increase in cost. was there.

0012 Therefore, in view of the above-mentioned conventional problems, the present invention uses a dedicated detection circuit. Automatically determines the type of telephone line for making a report and dials Our objective is to provide an automatic notification device that can determine the

[0013]

[Means to solve the problem]

The automatic notification device created by this invention to solve the above problems has the basic structure shown in Figure 1. As shown in the diagram, a predetermined telephone number for reporting is automatically sent in response to the occurrence of a reporting factor. Automatic notification equipment that dials to make a report can make a prediction based on the occurrence of a reporting factor. The telephone number of the designated reporting destination is dialed on one side of the telephone line. automatic dialing means 1a for automatic dialing; Signal detection means 1 for detecting a signal from the destination after automatic dialing by 1a b, and when the signal detecting means 1b does not detect a signal from the destination, the automatic The dialing method of automatic dialing by the dialing means 1a is the other method. and a dialing method changing means 1c for changing the automatic dialing method to the automatic dialing method 1a. is the dialing method changed by the dialing method changing means 1c, and is set in advance. The system is characterized by automatically re-dialing the phone number of the report destination.

[0014]

[Effect]

In the above configuration, depending on the occurrence of a reporting factor, a predetermined reporting destination telephone number is Automatic dialing that automatically dials according to a predetermined dialing method for one side of the telephone line. After automatic dialing by the earring means 1a, a signal from the destination is detected. When the means 1b does not detect it, the dialing method changing means 1c is an automatic dialing means. 1a to change the automatic dialing method to the other method, and With the modified dialing method, the automatic dialing means 1a calls the predetermined destination phone. The number will be automatically dialed again, and during the communication process the number will be automatically dialed. Determine whether the dialing method is correct based on whether or not there is a signal sent from the can be done.

[0015]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. Figure 2 shows the automatic notification according to the present invention. An embodiment of the information device is shown in the figure, which is the same as that described above with respect to FIGS. 4 and 5. The same reference numerals are given to the same parts, and detailed explanation thereof will be omitted.

[0016] The report control circuit 1 of the report device selects a predetermined report destination according to the input of the report factor. The phone number will be automatically dialed, and when you are connected to the other party, if the call is available, Carrier waves (downlink) for transmitting and receiving data are transmitted from an information center (not shown) be done.

[0017] When the carrier wave from the information center is input to the notification control circuit 1 via the transformer 3 and modem 6, the automatic notification device transmits the carrier wave (upstream) to the information via telephone lines L and _L2 in order to transmit data. Send to center. After transmitting the carrier wave from the reporting device, data including the reporting factor is transmitted and received after a certain period of time, and the series of reporting operations is completed.

[0018] The above automatic dialing by the notification control circuit 1 is based on a predetermined PB signal dial. Automatic dialing is performed by either the dial circuit 4 or the DP signal dial circuit 5. Even after a certain period of time, for example 30 seconds, has elapsed after the carrier wave from the information center is corrected. If there is no reception all the time, it is assumed that the telephone line type is different and the other dial is connected. Perform automatic dialing again using the dial circuit.

[0019] The details of the operation of the automatic notification device outlined above constitute the notification control circuit 1. This will be explained with reference to the flowchart of FIG. 3 showing the work performed by the CPU.

[0020] The CPU starts operating, for example, when the power is turned on, and in the first step S1 monitors whether or not a notification factor has occurred, and when a notification factor occurs, proceeds to step S2 and uses a predetermined dialing method, for example. In order to perform automatic dialing using the PB system, a signal corresponding to the telephone number of the destination is output to the PB signal dial circuit 4 to cause the PB signal dial circuit 4 to generate a PB signal. This PB signal is sent to the telephone lines L ₁ and L ₂ via the coupling transformer 3.

[0021] After that, proceed to step S3, start a 30 second timer, for example, and then step S4. Proceed to. In step S4, the carrier wave from the information center is transferred to the telephone line L.₁and L ₂ , it is determined whether or not it has been received via the transformer 3 and modem 6. Step S4 When the determination is YES, automatic dialing by the PB signal in step S2 is performed. It is determined that the contact destination is connected through the ring, and the process then proceeds to step S5 where the monitor is connected. Dem 6, transformer 3, telephone line L₁and L₂transmits the carrier wave through the following step Proceed to step S6 to perform communication processing, and when this processing is completed, return to step S1 above. Ru.

[0022] When the determination in step S5 is NO, the process advances to step S7 and the step Determine whether or not the 30 second timer started in S4 has timed out. If the determination is NO, the process returns to step S4. Then, the determination in step S7 is YES. If it becomes S, the process goes to step S8, changes the dialing method from PB to DP, and repeats the above steps. Returning to step S2, automatic dialing is performed.

[0023] The dialing method at this time is the DP method changed in step S8 above. Therefore, the CPU responds to the telephone number of the reporting destination to the DP signal dial circuit 5. The signal is output to cause the DP signal dial circuit 5 to generate a DP signal.

[0024] In addition, it is now possible to select the method to dial first when a reporting factor occurs. In this case, a setting switch 9 is provided as shown by the dotted line in FIG. That's fine.

[0025]

[Effect of the idea] As explained above, according to the present invention, a predetermined notification is made in response to the occurrence of a notification factor. The destination phone number is automatically dialed using a predetermined dialing method for one side of the phone line. automatically dials when no signal is detected from the destination. Change the dialing method to the other method, and with this changed dialing method, The phone number of the reported destination will be automatically dialed again, and the communication process will be delayed. Whether the dialing method is correct depends on whether there is a signal sent from the destination during the process. Since it is possible to determine whether the Automatically determines the type of telephone line and determines the dialing method. It looks like this.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the basic configuration of an automatic notification device according to the present invention.

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

FIG. 3 is a flowchart showing work performed by a CPU forming the notification control circuit in FIG. 2;

FIG. 4 is a block diagram showing an example of a conventional automatic notification device.

FIG. 5 is a block diagram showing another example of a conventional automatic notification device.

[Explanation of symbols]

1a CPU (automatic die ringing means) 1b CPU (signal detection means) 1c CPU (dial method change means)

Claims (1)

[Scope of utility model registration request] [Claim 1] An automatic reporting device that automatically dials a predetermined telephone number of a reporting destination in response to the occurrence of a reporting factor, which dials a predetermined telephone number of a reporting destination in response to the occurrence of a reporting factor. , an automatic dialing means that automatically dials according to a predetermined dialing method of one of the telephone lines; a signal detection means that detects a signal from the destination after automatic dialing by the automatic dialing means;
dialing method changing means for changing the dialing method automatically dialed by the automatic dialing means to another method when the signal detecting means does not detect a signal from the destination; An automatic reporting device characterized by automatically dialing a predetermined telephone number of a reporting destination again using a dialing method changed by a method changing means.