JP2832214B2 - Line selection device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a line selection device.

[Prior Art] For example, there is a telephone as a communication device using a telephone line, while recently, a line for transmitting a signal for selecting one of a plurality of telephone lines respectively owned by a plurality of telecommunications carriers. Various selection devices have been proposed.

This line selection device is usually provided on a telephone line near a telephone, and inputs a dial signal from the telephone, and when a dial signal satisfies a predetermined condition, a predetermined communication carrier. A signal for identification, an individual information signal of the sender such as an ID signal, and the like are transmitted on the telephone line together with the dial signal. In addition, a line selection device that is capable of automatically selecting the lowest-charged telecommunications carrier according to the time has been proposed. In a line selection device having such a function, a download from a host center is required. A function to change internal data is built in.

[Problem to be Solved by the Invention] In the above-described line selection device, data that may be changed is stored in a RAM, and the data is, for example, a service that can be provided by a predetermined communication carrier. There are flag data, billing (use fee) data, etc. corresponding to the area code.

Normally, these change data are applied from midnight of the relevant day, and for that purpose, the data in the RAM of each line selection device provided for each of a large number of telephones is stored at midnight of the relevant day. I have to rewrite it all at once.

However, it is substantially impossible to rewrite the data in the RAM of each line selecting device at a time by downloading from the host center.

Accordingly, it is an object of the present invention to provide a line selection device which solves the above problems.

Means for Solving the Problems In order to achieve the above object, the present invention provides a clock means, a first storage means for storing data related to line selection,
A second storage unit storing another data relating to a line selection that is at least partially different from the data in the storage unit, and remaining date data indicating a remaining date until a data change date; Updating means for updating the remaining day data in the second storage means based on the data stored in the second storage means based on the line selection in the first storage means when the remaining day data becomes zero. Means for replacing the data with the data related to the line selection within.

[Operation] According to the present invention, the above configuration enables efficient data change processing and the like for each line selection device.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of a line selecting apparatus to which the present invention is applied. In the figure, reference numeral 1 denotes a pair of office line terminals, which connect a telephone line connected to an exchange of the office. Reference numeral 2 denotes a pair of telephone terminals, which are connected to the telephone.

The line terminal 1 and the telephone terminal 2 are connected via an a-side contact of a relay 3. The line terminal 1 has a transformer 4 for tone signal detection in parallel between the pair of terminals 1. Both ends of one winding 4A are connected. A photo MOS relay 5 is interposed between the one winding 4A and the terminal 1. The photo MOS relay 5 is opened and closed by a signal from a dial pulse output terminal of a CPU 6 to be described later. Is opened or closed between the local line side terminals 1. As a result, a dial pulse signal is transmitted from the line terminal 1 to the exchange.

Reference numeral 7 denotes a photocoupler for detecting a dial pulse signal input from the telephone to the telephone terminal 2 and an off / on hook of the telephone. The detection output signal is supplied to a dial pulse input terminal of the CPU 6 via an amplifier 8 with a filter. The signal is input to the (on / off) hook detection terminal of the CPU 5 via the amplifier 9 with a filter.

10 is a dialer, which is a dial tone (DTM
F) The dial tone signal is supplied to the other winding 4B of the transformer 4 based on the signal from the signal output terminal. Dialer 10
Is supplied to the line terminal 1 via the transformer 4 and sent out to the exchange through the telephone line. The tone signal input from the exchange side to the central office terminal 1 through the telephone line is input to the dial tone signal input terminal of the CPU 6 via the coupling capacitor 12 and the receiver amplifier 13. Further, the dial tone signal input from the telephone to the telephone terminal 2 is also transferred to the capacitor 12.
The signal is input to the dial tone signal input terminal of the CPU 6 via the amplifier 13.

Reference numeral 14 denotes a stabilized power supply circuit, which stabilizes an external direct current (DC) voltage input via a resistor 15 and supplies the stabilized voltage to each component of the line selection device. Reference numeral 20 denotes a relay driver controlled by a signal from the CPU 6, which drives the relay 3. When the relay 3 is connected to the a-side contact, the central office terminal 1 and the telephone terminal 2 conduct directly, while when connected to the b-side contact, the terminals 1 and 2 are open. The voltage stabilized by the stabilized power supply circuit 14 through the resistor 16 is supplied from the telephone terminal 2 to the telephone.

Reference numeral 17 denotes a ROM, which has a storage area for a program at the time of initial setting, a diagnosis program for the entire line selecting apparatus, all area codes, and special telephone numbers.

Reference numeral 18 denotes a clock device which outputs a pulse every hour, for example.

Reference numeral 19 denotes a RAM, which has a current area that is normally used and an update area that stores update data. These areas have the same data storage area configuration. 2) Regarding time, one out of a plurality of telecommunications carriers
Area storing selection information for selecting one, (3) flag data area in which an address corresponding to a specific area code and a special telephone number in ROM 17 is flagged, (4) each telecommunications carrier (5) An individual information area storing the identification number and the corresponding personal information number, (5) a control program area of the entire line selection device at the time of initial setting, (6) a billing data area, (7) a maintenance data area, (8) It has a flag service telephone number area, (9) a failure service telephone number area, and (10) a remaining day data area.

[Automatic Selection] Here, an operation of automatically selecting one of a plurality of telephone lines will be described.

First, when the telephone is on-hook, relay 3 is a
It is connected to the contact side, so that a signal from the exchange side is supplied to the telephone. When the telephone is called in the on-hook state, a ringing signal is input to the dial pulse or dial tone signal input terminal of the CPU 6, so that even if the telephone is off-hook in that state, the CPU 6
Does not switch the relay 3 and the a contact remains connected.

When the telephone is off-hook in a state of no ringing, the impedance between the pair of telephone terminals 2 changes from high impedance to low impedance, and an off-hook detection signal from the photocoupler 7 is input to the CPU 6 via the amplifiers 8 and 9. With this input, the CPU 6 sends a signal to the relay driver 20, and the relay 3 switches to the contact b side. As a result, the telephone and the office line are separated from each other, and a voltage stabilized by the stabilized power supply circuit 14 is supplied to the telephone. A dial signal from the telephone is supplied to the photocoupler 7 and the amplifier 8 when the telephone is in the form of a dial pulse signal. When the telephone is in the form of a dial tone (DTMF) signal, it is input to the CPU 6 via the capacitor 12 and the amplifier 13.

The CPU 6 refers to the flag data in the RAM 19, and when the number of the leading part in the dial signal from the telephone once stored in the RAM corresponds to a specific number (for example, a specific area code) where the flag is set, Based on the time information of the clock device 18 and the selection information in the RAM 19, the telephone line of the telecommunications carrier having the lowest charge at that time is determined, and an identification number for selecting the telephone line and a corresponding personal information number The dial number from the telephone is transmitted to the telephone line by the dialer 10 in the case of a tone signal and by the photo MOS relay 5 in the case of a dial pulse signal. When the called party goes off-hook, the CPU 6 detects the off-hook and stores charging data corresponding to the call time in a portion of the charging data area of the RAM 19 corresponding to the communication carrier.

[Self-diagnosis] The CPU 6 refers to the time information of the clock device 18 every predetermined period.
Based on the diagnostic program in the ROM 17, each component of the line selection device is diagnosed for a failure.

FIG. 2 shows the relationship between a number of main line selection devices 100 and a host computer (HC) 200 as a source of various data. In the figure, HC 200 has a number of telephones 300i, 400i connected to telephones 300, 400 of two representative numbers, respectively.
The line selection device 100 connected to the telephone set 100i of each individual and the representative telephone sets 300 and 400 can communicate with each other via the telephone line and the central office 500.

In such a system as described above, for example, the HC 200 transmits update data for each data in the RAM 19 for each telephone 300i connected to the telephone 300 of one representative number, and transmits the update data for the telephone 400 of the other representative number. Each phone 400i
With regard to, failure service data is transmitted.

[Update data service] When an update data service request signal is generated from the clock device 18 in the line selection device 100i on the calling side every predetermined period, the CPU 6
Reads the flag service phone number in RAM19,
The number is transmitted from dialer 10 to telephone set 300 on the called side. As a result, the telephone 300 having the corresponding representative number is called, and the telephone 300i connected to the telephone 300 is ringed. Even if the telephone 300i rings, the HC 200 leaves the ringing as it is when the data has not changed (does not go off-hook), and only when the data has changed,
After ringing for a predetermined time, the telephone set 300i goes off-hook to send the data and remaining-day data indicating the number of days remaining until the date on which the change is executed to the calling-side line selecting device 100i. The data and the received line selection device 100i
In, the CPU 6 writes the data in the update area in the RAM 19 (the remaining day data is written in the remaining day data area).

The CPU 6 updates the remaining day data of the update area of the RAM 19 every day at midnight based on the time information from the clock device 18, and when the number of days indicated by the remaining day data becomes zero by the update, the current date of the RAM 19 is updated. The data in each data area of the update area is overwritten on each data area of the area.

[Failure Service] In each line selection device, the CPU 6 starts a failure service process at predetermined time intervals based on time information of the clock device 18,
If a failure is detected by the processing, the CPU 6
The telephone number for the trouble service in the current area of M19 is read out, and the number is transmitted from the dialer 10. Thus, the telephone 400i connected to the telephone 400 having the other representative number is ringed.

The HC 200 goes off-hook on the telephone 400i, inputs fault information from the line selection device, and transmits fault service data according to the information in a predetermined order using a tone signal or the like. In response to this, on the line selection device side, the CPU 6 inputs the tone signal (data) sent from the HC 200 via the capacitor 12 and the amplifier 13 and temporarily stores it in the RAM 19,
Overwrite the corresponding area of the current area in AM19,
End the data change.

As described above, storing the telephone numbers unified for each data processing in the storage means greatly enhances the data processing efficiency. Further, it is extremely easy to change and manage the unified telephone number.

[Effects of the Invention] As described above, according to the present invention, it is possible to provide a line selecting apparatus capable of extremely easily maintaining and managing data required at a predetermined date and time.

[Brief description of the drawings]

 FIG. 1 is a block diagram of a line selection device to which the present invention is applied, and FIG. 2 is a diagram showing an outline of a system when data is changed.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 1/00 H04M 1/27 H04M 15/00-15/38

Claims (1)

(57) [Claims] 1. Clock means, first storage means for storing data relating to line selection, another data relating to line selection at least partially different from data in the first storage means, and a data change date Second storage means for storing remaining day data indicating the remaining day of the day, updating means for updating remaining day data in the second storage means based on time information indicated by the clock means, and the remaining day data. Means for replacing the data related to the line selection in the first storage means with the data related to the line selection in the second storage means when the zero date is reached. .