JPH0473828B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a self-employed toll telephone that is connected to a general subscriber line and allows outgoing calls and telephone calls in accordance with the collection of charges.

[Conventional technology]

In such telephones, the distance from the ground to the destination is determined according to the dialed number, the corresponding unit call time is calculated, and charges are collected accordingly.

[Problem that the invention seeks to solve]

However, for self-employed telephones, there are cases in which the telephone company wants to set higher charges for the purpose of making a profit, or lower charges for the purpose of providing services to users. There is a growing demand for a telephone with variable collection charges depending on the purpose.

[Means for solving problems]

In order to solve the above-mentioned problem, the present invention is constructed by the following means.

That is, in the above-mentioned telephone, there is a setting means 9 for setting a constant for changing the unit call time used when collecting charges, and a unit call time that is changed by multiplying this constant by the unit call time determined according to the ground distance. Calculating means 5, 123, 12 for calculating time
4,125, and storage control means 5,131 that collects charges according to the changed unit call time.
~134.

[Effect]

Therefore, if a constant is selected and set by the setting means, the unit call time is changed based on the constant, and charges are collected according to the changed unit call time.

〔Example〕

Hereinafter, details of the present invention will be explained with reference to figures showing examples.

Figure 1 is a circuit diagram, in which a capacitor C1 is connected between line terminals L1 and L2 to which a general subscriber line is connected.
and a tone ringer (hereinafter referred to as
TRG) 1 are connected in parallel to notify the incoming call, and the line terminal L
Between 1 and L2, there is a switch HS ¹ and a relay.
ANS contact ans ³ , contact CC as coin detection contact
1. A switch circuit (hereinafter referred to as SWC) ² , a power supply circuit (hereinafter referred to as PS) 3, In addition, the telephone communication circuit (hereinafter referred to as TKC) 4 including the handset and receiver is connected, and when a coin is inserted after turning on the hook switch HS ¹ by the off-hook, the contact CC1 is activated in response to this, and the loop circuit via TKC 4 is closed. It has become something to do.

Note that before the called party responds, a line voltage is applied with the line terminal L1 as the positive terminal, and when a loop current passes through the loop circuit in response to contact CC1 being turned on, the photocoupler inserted as a forward direction
As the light emitting diode of PC1 emits light, the SWC
2 automatically turns on and allows loop current to flow, and this loop current causes PC3 to
The capacitor inside is charged, and the terminal voltage of this is supplied to various parts as a power supply _VD .

In addition, a control circuit (hereinafter referred to as CNT) 5 consisting of a microprocessor, memory, etc. is provided.
In response to the power supply from the PS3, when the voltage of the power supply V _D reaches the specified value, initial reset is performed and control operation is started, and the dial key (hereinafter referred to as
If you operate DK) 6 according to the number of the other party, CNT5 will control SWC2 accordingly,
It turns off and on in response to the number operated by the DK6, thereby sending out a dial pulse, and dialing in response to the operation of the DK6.

As a result, the exchange responds, an exchange connection is established, and when the called party answers, the exchange reverses the polarity of the voltage applied between the lines, making the line terminal L2 the positive pole, thereby also changing the direction of loop current flow. The loop current reversed and blocked by diode D5 flows through diode D6 and the hook switch.
Terminal 1 to relay ANS for response detection via HS ²
A self-holding relay ANS that connects from
The robot operates and then performs self-retention.

Incidentally, a loop current is always passed through SWC2, PS3, and TKC4 in a fixed direction by diodes D8 to D11, regardless of the polarity of the line voltage.

Depending on the operation and holding of relay ANS, contact CC
Contact ans ⁰ inserted into one side of contact CC1, contact ans ³ inserted into the other side of contact CC1, and contact CC1.
ans ¹ and ans ² each operate, and contact ans ⁰ causes contact
While bypassing CC1 to diode D5 and disconnecting them from the loop circuit, contact ans ³ connects contact CC1 to CNT5 via resistor R3, and contact ans ¹ connects contact CC1 to CNT5. Connect the other side to the common circuit.

However, during recovery, contact ans ¹ connects the power supply V _D applied to the input of inverter (hereinafter referred to as IN) 7 via pull-up resistor r to the common circuit. IN7 as “L” (low level)
The output of IN7 is set to "H" (high level) and is given to CNT via resistor R4, and if contact ans ¹ operates, the input of IN7 becomes "H" and its output becomes "L". In response to the call, the CNT5 determines the callee's response, starts determining the presence or absence of coins using contact CC1, calculates the unit call time based on the number of the callee who responds to the operation of the DK6, and sets the call time using an internal timer. While monitoring, a coin storage circuit (not shown in the figure) is controlled to store coins.

Therefore, the first coin is stored in response to the callee's response, but if there are more coins waiting, the contact
CC1 is turned on and “L” is connected through resistor R3.
The information is given to the CNT 5, and based on this, the CNT 5 determines that the call should still be allowed.

On the other hand, when all the coins are stored, the contact point
When CC1 is turned off, the power supply V _D through resistor r applies "H" through resistor R3, and in response to this, CNT5 controls SWC2 when a unit talk time has elapsed since the previous coin storage. , turn this off to forcefully disconnect the call.

Also, before the called party answers, use a string hanging coin or the like to turn on contact CC1 and make a local dial call. After storing this in CNT5, turn off and on contact CC1 to turn on the exchange. After recovery and re-acquisition, contact CC
If an unauthorized operation is performed, such as making a long-distance call by repeatedly turning 1 off and on, the light emitting diode of photocoupler PC1 will emit light according to the loop current before each contact ans ⁰ to ^{ans 3} operates. Then, the light-receiving transistor of the photocoupler PC1 receives the light and turns on, giving an "L" level through the resistor R3. However, if the loop current is cut off by turning off the contact CC1, the light-emitting diode turns off and the light is not received. The transistor turns off and gives "H" through resistor R3, so CNT5 receives this as dialing prevention information, determines unauthorized operation on the assumption that DK6 is not being operated, and controls SWC2 to turn it off. , after the exchange is restored, dialing will be disabled.

Note that the constant voltage diode ZD, which is similar to the light emitting diode and resistor R2, is provided to limit the voltage applied to the light emitting diode and resistor R2 by the Zener voltage, and to regulate the current flow value of the light emitting diode. .

In addition, if the relay ANS goes on-hook after the end of a call, the line terminal L1 becomes positive again when the exchange is restored, so the relay ANS disconnects the restored hook switch HS ² , the operating contact ans ² , and the diode D7. Through this, the relay ANS is energized from terminal 4 to terminal 1, thereby restoring the power.

On the other hand, in the case of an incoming call, a 16Hz ringing signal with a DC component superimposed with the line terminal L2 as the positive terminal arrives, and if off-hook is performed in response to TRG1 ringing, the diode D6 and the hook switch are activated. The current in the operating direction passes through HS ² to the relay ANS, and the relay ANS maintains the operation.
Since contact point ans ⁰ bypasses contact point CC1, answering calls can be made freely without inserting coins.

However, CNT5 receives "L" through resistor R4 when contact ans ¹ is activated as response detection information, and immediately after off-hook, it determines whether the call is incoming or outgoing depending on the presence or absence of this. If it is determined that an incoming call is received, dialing is prohibited, and if it is determined to be an outgoing call, dialing is permitted.

On the other hand, in order to set one's own area number, an area number setting device (hereinafter referred to as
TNS) 8 is provided, as well as a similar constant setting device (hereinafter referred to as KST) that sets constants for rate variation.
9 is provided, and if there is a local number with a different unit call time even if it is a local call, for the purpose of setting this local number, use a local number setting device (hereinafter referred to as LNS) similar to TNS8. )10 is provided, DK
When making a dial call using 6, CNT5 calculates the ground distance to the other party according to these settings and the dial number, calculates the corresponding unit call time, and then calculates the constant K set by KST9 as a unit. Multiply call time T to change call time
Perform the calculation to find Ta (Ta=K・T), and
Set Ta to the timer in CNT5, and after the called party answers, every time this timer times up,
For example, a unit charge of 10 yen is collected.

In addition, if it is determined that it is a local call based on the dialed number, it is compared with the setting number of LNS10, and it is determined whether or not the unit call time should be set as standard.
When the set number of 0 and the dialed number do not match, the standard unit call time T of, for example, 3 minutes is used in the above calculation, whereas when the two match, a predetermined non-standard unit call time of, for example, 80 seconds is used. The above calculation is performed using .

Therefore, even in the case of a local call, when calling to a destination that has different charges depending on the actual distance of the call, the charge will be collected according to the distance of the call, and the charge will be collected according to the distance of the call. Even if it is either,
By selecting the constant K using KST9, it is possible to freely increase or decrease the collected charges relative to the charges paid to the telephone company.

Note that the constant K is, for example, 0.5, 0.7, 0.8, 1.0,
1.5 etc. can be set.

In addition, to determine the distance to the ground and the unit talk time T, store the distance to the ground between each area number as a table in the memory of the CNT 5, use this to calculate the distance to the ground, and perform a predetermined calculation accordingly. ,
Alternatively, the unit call time T may be determined using a similar conversion table.

Figure 2 shows the processor in CNT5 (hereinafter referred to as
This is a flowchart of the control situation by CPU).
PS due to loop current distribution according to off-hook
3 starts supplying power _V The number is stored in the memory in the CNT 5 by "Number storage" 103.

Next, "Called party responds?" 111 is determined based on the status of contact ans ¹ , and if this is YES,
“Self area number import” from TNS8 112,
Then, after performing "reading the dialed number" 113 from the memory, "determining the distance to the ground" 121 by the above-mentioned means, and "determining the unit call time T" 122 based on this, and After carrying out "Importing constant K" 123, "Ta=
K.T" 124 and "Timer Set" 125 for the timer configured in the CPU.
Set Ta and start it.

Then, immediately perform the "Coin storage process" 131, and "Timer time up?" 132 is YES.
"Timer Set" 13 again according to the
At the same time, a "coin storage process" 134 is performed, and the same control is repeated until there are no on-hook or waiting coins due to the end of the call.

Therefore, it is possible for the setter to increase or decrease the storage fee relative to the payment fee according to his/her will, thereby making it possible to earn profits or provide services to the user.

Furthermore, even if the call is treated as a local call, in areas where there are local numbers that have a unit call time other than the standard, this can be easily handled.

In addition, if the local number is the first digit of the station number, and the area code is (0427) 72-1234, for example, only "4277" can be used, excluding the first "0", but it is difficult to distinguish. It is sufficient if it is possible, and the digits to be used may be selected depending on the situation.

However, the CPU is used as a calculation means and storage control means.
The same effect can be achieved even if a dedicated CNT5 configured by a combination of various logic circuits is used as the CNT5 instead of using the CNT5 according to The steps may be interchanged or each step may be replaced with an equivalent one.

It can also be applied to the case where a toll card such as a magnetic card is used instead of coins, and to obtain the power supply V _D , the commercial power supply may be rectified and stabilized. The same thing can be done if off-hook information is given to the CNT 5 through the contact point, and various modifications are possible, such as being applicable to the first loop method or the audio frequency signal dialing.

〔Effect of the invention〕

As is clear from the above explanation, according to the present invention, it is possible to freely increase or decrease the collection fee with respect to the payment fee, and it is possible to earn profits or provide services to users. A remarkable effect can be obtained in a type telephone. In addition, since it is only necessary to set a constant to be multiplied by the unit call time determined according to the distance to the ground, NTT's fee structure can be used as is, making the configuration extremely simple.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention, and FIG. 1 is a circuit diagram;
FIG. 2 is a flowchart of the control situation. 2...SWC (switch circuit), 3...PS (power supply circuit), 4...TKC (call circuit), 5...CNT (control circuit), 6...DK (dial key), 8...TNC (area number setting device) , 9...KST (constant setting device), 10...LNS
(local number setting device), L1, L2...Line terminal,
HS ¹ , HS ² ...Full switch, ANS...Relay (response detection relay), ans ⁰ to ^{ans 3} ...Contact, CC1...
Contact (detection contact), PC1...Photocoupler, D5~
D11...Diode, R1-R4...Resistor.

Claims (1)

[Scope of Claims] 1. Determine the ground distance to the other party according to the own area code and dialed number, calculate the unit call time corresponding to this ground distance, and charge the charge according to this unit call time. A toll-collecting telephone that stores charges, a setting means for setting a constant for changing the unit talk time used when collecting the charges, and a constant set by the setting means for changing the distance to the ground. a calculation means for calculating the changed unit call time by multiplying the unit call time determined accordingly; and a collection control means for collecting the charge according to the changed unit call time. Retractable telephone.