KR950009398B1 - Celluar phone system - Google Patents

Abstract

The apparatus comprises a plurality of radio public phones with a coin discriminating part, a coin accumulating part, a card reading part, a call circuit, a key pad, a unit charge determinating part, a display part, a memory part, a power, and a modem; and a radio public phone controller with the modem, the memory part, a cordless part, RS-232 part, a monitor, the keyboard, and the power part.

Description

Wireless payphone system

1 is a block diagram of a conventional public telephone.

2 is a block diagram of a wireless public telephone system according to the present invention.

3 is a block diagram of each wireless public telephone shown in FIG.

4 is a block diagram of a wireless public telephone control unit shown in FIG.

5 is a flowchart illustrating the operation of the wireless payphone control unit.

6 is a flowchart of operation of each wireless payphone.

* Explanation of symbols for main parts of the drawings

40 ₁ to 40 _n : Wireless public telephone 50: Wireless public telephone control unit

26, 51: control unit 25: call circuit unit

27: coin selector 28: coin accumulator

29: safe 30: card reader

31, 58: power supply unit 32: unit charge setting unit

33: key pad portion 34: display portion

35, 53: storage unit 36, 52: modem unit

54: RS to 232C section 55: monitor section

56: keyboard portion 57: wireless portion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a public telephone, and more particularly, to a wireless public telephone system in which a mobile telephone such as a bus, a train, a ship, and the like can communicate with a plurality of wireless public telephones at the same time.

A conventional public telephone will be described with reference to FIG. The conventional public telephone has a handset 11, a telephone circuit section 12, a coin sorter 14, a coin accumulator 15, a safe 16, a card reader 17, as shown in FIG. The keypad 18, the display unit 19, the unit charge setting unit 20 and the power supply unit 21 is configured.

The public telephone configured as described above operates as follows. When the user off-hooks the handset 11, the display unit 19 displays a message "put" under the control of the control unit 13. At this time, when the user inserts coins into the coin sorting unit 14 or inserts a card into the card reader unit 17, the input amount is displayed on the display unit 19, and the control unit 13 indicates that the input amount is the unit rate setting unit ( If the unit rate is set by 20) or more, the call circuit unit 12 is connected to make the dialable state.

After the user dials using the keypad 18 and receives a charging signal from the switching center during the call, the controller 13 receives the charging signal. When the charging signal is detected, the controller 13 sets the basic unit charge setting unit 20. As much as the unit amount of money from the coin accumulator 15 to the safe 16 and if the coin accumulated in the coin accumulator 15 is less than the basic unit fee, the call circuit unit 12 is disconnected to prevent the call. When the user makes an on-hook after completing a call, the control unit 13 erases the message displayed on the display unit 19 and returns the remaining amount to the coin storage unit 15 or the balance of the card in the card reader unit 17. Let's do it.

As described above, the conventional public telephone has a problem in that it is not possible to make a call in a moving vehicle, a shelf, a train, etc., because the telephone is connected through a wire.

The present invention has been made in view of the above-described problems, so that even in a moving vehicle, ship, train, etc., it is possible to use a number of wireless public telephones connected to a single wireless communication means at the same time to communicate smoothly via wireless An object of the present invention is to provide a wireless public telephone system that can efficiently use a limited wireless channel.

In order to achieve the above object, the present invention provides a coin sorting unit 27 for discriminating whether or not a coin is a pearl coin and outputting information about the coin to the control unit 26, and coins from the coin sorting unit 27. Card storage unit 28 for storing coins and reading the telephone bill card and outputting the information to the control unit 26, according to the control of the control unit 26 and sending coins to the safe box 29 side. ), A call circuit unit 25 for controlling the flow of voice signals input and output to the talker 38 under the control of the control unit 26, connected to the control unit 26, dialing key, call start key, call end key, A keypad unit 33 having a send key, a redial key, and an emergency call key, a unit rate setting unit 32 connected to the control unit 26, and setting a unit call rate according to the control of the control unit 26; Display information about call status and call rate Control unit 35 for storing the time unit 34, unit call charges and information necessary for the operation of the control unit 26, a power supply unit 31 for supplying operation power to each of the circuit units, and control of the control unit 26. A plurality of radio payphones 401 to 40n including a modem unit 36 for transmitting and receiving data according to the present invention; The modem unit 52 which transmits and receives data to and from the modem unit 36 under the control of the control unit 51, and stores call charge time information and operation information of each wireless public telephone under the control of the control unit 51. Under the control of the storage unit 53 and the control unit 51, the voice signal supplied from the communication circuit unit 25 is transmitted to the cell site through a wireless channel, and the voice signal supplied from the cell site is transmitted to the cell site. A wireless unit 57 outputting to the communication circuit unit 25 side, an RS-232C unit 54 for transmitting and receiving data to and from the control unit 51 side, and a monitor unit for displaying data supplied from the RS-232C unit 54 ( 55), a wireless public telephone control unit 50 including a keyboard unit 56 for outputting data to the RS-232C 54 side, and a power supply unit 58 for supplying operation power to the control unit 51 side. Wireless public telephone system, characterized in that The ball.

In addition, the present invention is a first step of determining whether or not off-hook of a plurality of wireless public telephones, after performing the first step, if one of the wireless public telephone is off-hook request for a call, the wireless public telephone requesting a call to the wireless channel After the second step of making the call available by connecting to the cell site through the first step, the mobile terminal transmits a non-hooked message to the non-off-hook wireless public telephone and checks the failure state of the wireless public telephone not off-hook. A third step of setting a basic call rate time for the wireless telephone that is not off-hook, and when the wireless public telephone is off hooked and terminated after performing the second step, between the wireless communication means and the terminated wireless public telephone. Cancel the sending / receiving operation, save the call charge time, and then call the message to multiple wireless payphones. It provides multiple wireless public telephones operating method of a wireless public telephone system which is characterized in that it comprises a fourth step of transmitting.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of a wireless public telephone system according to the present invention, FIG. 3 is a configuration diagram of each wireless public telephone shown in FIG. 2, and FIG. 4 is a configuration diagram of the wireless public telephone control unit shown in FIG. 5 is an operation flowchart of the wireless payphone control unit, and FIG. 6 is an operation flowchart of each radio payphone.

As shown in FIG. 2, the wireless payphone system of the present invention is composed of a wireless payphone control unit 50 and a plurality of wireless payphones 40 ₁ to 40 _n . A plurality of wireless public telephone (40 ₁ ~40 _n) is connected to the wireless public telephone controller 50 through a wired or wireless public telephone controller 50 communication request from one of the wireless public telephone (40 ₁ ~40 _n) If there is a call, the wireless payphone which requested the call is connected to the cell site side through the wireless channel to control the call and the busy tone is output to the other wireless payphone that is not called. Inform.

As shown in FIG. 3, each of the wireless payphones 40 ₁ to 40 _n includes a call circuit section 25, a controller 26, a coin sorter 27, a coin accumulator 28, and a safe 29 ), Card reader unit 30, power supply unit 31, unit charge setting unit 32, keypad unit 33, display unit 34, storage unit 35, modem unit 36 and handset 38 It is composed by connection. The call circuit unit 25 operates under the control of the control unit 26. During the call, the call circuit unit 25 outputs the transmission voice signal supplied from the handset unit of the handset 38 to the wireless public telephone control unit 50 and the wireless public telephone control unit 50. And outputs the received voice signal from the receiver to the receiver of the handset 38, and mutes the voice signal so that the voice signal is not transmitted or received between the handset 38 and the wireless public telephone controller 50 when not in a call. The coin sorting unit 27 sends the coin to the coin accumulating unit 28 if the coin is a pearl, and returns the coin if it is a coin coin. The unit rate setting unit 32 sets the unit call rate for the unit call time, and the keypad 33 is a dialing key, a call start key, a call end key, a send key, an emergency call key, and a redial call. Key. The display unit 34 displays information on the call state and the call rate under the control of the control unit 26, and the storage unit 35 stores necessary information such as a call amount, a safe amount, and a card use amount. The card reader unit 30 reads the telephone bill card and outputs the information thereof to the control unit 26, and the modem unit 36 exchanges various information with the wireless public telephone control unit 50 side. The power supply unit 31 converts the power supplied from the vehicle battery into power for operating the wireless public telephone and supplies it to each circuit unit side.

As shown in FIG. 4, the wireless public telephone control unit 50 includes a control unit 51, a modem unit 52, a storage unit 53, an RC-232C unit 54, a monitor unit 55, and a keyboard unit. 56, a wireless unit 57 and a power supply unit 58 is configured. The modem unit 52 transmits various types of information supplied from the control unit 51 to the modem unit 36 side of the wireless public telephones 40 ₁ to 40 _n , and receives various types of information supplied from the modem unit 36 to control the unit ( 51). The storage unit 53 stores the operation information of the wireless public telephones 40 ₁ to 40 _n under the control of the control unit 51, and the wireless unit 57 stores the wireless public telephone 40 under the control of the control unit 51. The voice signal supplied from the call circuit section 25 of _{1 to} 40n is transmitted to the cell site side through the radio channel, and the voice signal received from the cell site through the radio channel is output to the call circuit section 25 side. The power supply unit 58 converts power supplied from the vehicle battery into power for operating the wireless public telephone control unit 50. The keyboard unit 56 outputs various control information to the control unit 51 through the RS-232C unit 54, and the monitor unit 55 is supplied from the control unit 51 through the RS-232C unit 54. Display operation information.

The wireless public telephone control section 50 operates in the order shown in FIG. The control section 51 to determine whether the off-hook of the respective wireless public telephones (40 ₁ ~40 _n) of the modem wireless public telephones (40 ₁ ~40 _n) among the data sent and received with 36 wireless public telephones _(1, 40 It is determined whether one of ˜40 _n is off-hook (step 70), and when one of the cordless public telephones 40 _{1 to} 40 n is off-hook, the call circuit section 25 and the radio section 57 of the off-hook wireless public telephone are ) And transmits a busy message to the other radio payphone through the modem unit 52 and the modem unit 36 (step 71). When the call request message is received from the off-hook wireless payphone through the modem unit 36 and the modem unit 52, the control unit 51 transmits the call request message to the cell site through the radio unit 57 and then the wireless payphone. Connect to the cell site to make a call (step 72). The control unit 51 determines whether the on-call wireless public telephone is on hook (step 73), and if the on-call wireless public telephone is not on hook, goes to step 72; The call termination message is transmitted to the cell site via step S74. After that, the control unit 51 stores the talk time and the amount of money of the wireless payphone terminated in the storage unit 53 and makes the wireless unit 57 idle (step 75). 40 ₁ to 40 _n ) is transmitted to the callable message (step 76). Also, in step 70, the control unit 51 checks whether or not the wireless public telephone is not off-hook (step 77), and if necessary Information about the call charge time is stored to the radio payphone through the modem unit 52 and the modem unit 36 (step 78).

Each of the wireless public telephone (40 ₁ ~40 _n) are operated as shown in the order shown in Figure 6. The control unit 26 of the wireless payphones 40 ₁ to 40 _n determines whether or not a busy message is supplied from the wireless payphone control unit 50 (step 90). If the busy message is supplied, the display unit 34 displays the message " Calling " and the idle state is maintained even when the handset 38 is off hooked (step 91). The operation of step 94 is performed. After performing step 91, the control unit 26 determines whether a call available message is received from the wireless public telephone control unit 50 (step 92), and when the call available message is not received, returns to step 91 and allows a call. When the message is received, the message " in call " displayed on the display unit 34 is erased (step 93). Thereafter, the control unit 26 determines whether the handset 38 is off-hook (step 94). When off-hook, the off-hook message is transmitted to the wireless public telephone control unit 50 (step 95), and a message " insertion " is displayed on the display unit 34 (step 96). When the user inserts a coin into the coin sorting unit 27 or inserts a telephone bill card into the card reader unit 30 (step 97), the controller 26 determines whether the amount of money or the amount of the telephone bill card is equal to or greater than the basic currency rate. (Step 98), if the input amount is not greater than the basic currency rate, go to Step 96. If the input amount is greater than the basic currency rate, the display unit 34 displays the message " dial number send key pressed ". (Step 99).

Then, when the user dials and presses the send key, the control unit 26 releases the mute state of the communication circuit unit 25 to connect the communication circuit unit 25 to the radio unit 57 side (step 100). Then, it is judged whether or not the other party called via the radio section 57 is busy (step 101). If the other party's phone is not busy, the control unit 26 stores the basic fee from the coin tracking unit 28 to the safe 29, or decreases the telephone charge card amount of the card reader unit 30 (step 102). A "call" message is displayed on the display unit 34 (step 103). When the user inputs the call start key of the keypad 33, the call becomes available. The controller 26 determines whether or not the basic call time has elapsed during the call (step 104). It is judged whether or not the amount remaining in the storage storage 28 or the card reader 30 is equal to or more than the basic currency rate (step 105).

If the remaining amount is more than the basic call rate, the control unit 26 goes to step 102 during the call and accepts the basic call rate again. If the remaining amount is less than the basic call rate, the controller 26 forces the on-hook. In addition, in step 101, when the other party is busy, the user presses the redial key of the keypad 33 in a state other than the on hook (steps 112 and 113).

In step 99, the display unit 34 displays the message " Dial and press the send key ". At this time, the user can dial again by dialing again. When the other party is busy, if the redial key is not pressed for a predetermined time while not in the on-hook (steps 113 and 114) or on-hook (steps 106 and 112), the control unit 26 is connected to the modem unit 36. The on-hook message is sent to the wireless public telephone control unit 50 via the modem unit 52 (step 109), and the message displayed on the display unit 34 is erased and the coin accumulation unit 28 or the card reader unit 30 is removed. While returning the balance, the call circuit unit 25 is transmitted and muted (step 110), the amount of talk time is recorded in the storage unit 35, and then data about the talk time amount is transmitted to the wireless public telephone control unit 50 ( Step 111). If not off-hook in step 94, the control unit 26 checks the failure state of the wireless public telephone and transmits the corresponding information to the wireless public telephone control unit 50 (step 108), and supplies it from the wireless public telephone control unit 50. The stored basic call rate time information is stored in the storage unit 35 (step 107).

As described above, the present invention enables efficient use of a limited wireless channel by allowing a plurality of public telephones to share a single wireless communication means at the same time while making a smooth call through a wireless channel even in a moving vehicle, a ship, and a train. do.

Claims (3)

A coin sorter 27 for discriminating whether or not a coin is a pearl coin and outputting information about the coin to the control unit 26, and accumulating coins from the coin sorter 27 to control the controller 26. According to the control of the card reader unit 30 and the control unit 26 which read the coin storage unit 28, which sends coins to the safe box 29, and outputs information on the telephone charge card to the control unit 26. A telephone circuit unit 25 for controlling the flow of voice signals input and output to the talker 38, a keypad unit 33 connected to the control unit 26 and having a dialing key, and a unit call connected to the control unit 26 Unit rate setting unit 32 for setting the rate, the display unit 34 for displaying information on the call state and call rate under the control of the control unit 26, the unit call rate and necessary for the operation of the control unit 26 A storage unit 35 for storing information; A plurality of radio payphones 40 ₁ to 40 _n including a power supply unit 31 for supplying operation power, and a modem unit 36 for transmitting and receiving data under the control of the control unit 26; The modem unit 52 which transmits and receives data to and from the modem unit 36 under the control of the control unit 51, and stores call charge time information and operation information of each wireless public telephone under the control of the control unit 51. Under the control of the storage unit 53 and the control unit 51, the voice signal supplied from the call circuit unit 25 is transmitted to the cell site through a wireless channel, and the voice signal supplied from the cell site is transmitted to the cell site. A wireless unit 57 for outputting to the communication circuit unit 25 side, an RS-232C unit 54 for transmitting and receiving data to and from the control unit 51 side, and a monitor unit for displaying data supplied from the RS-232C unit 54 ( 55), a wireless public telephone control unit 50 including a keyboard unit 56 for outputting data to the RS-232C 54 side, and a power supply unit 58 for supplying operation power to the control unit 51 side. Wireless public telephone system, characterized in that. The method of claim 1, wherein the keypad unit 33 has a call start key for starting a call, a call end key for ending a call, a send key for sending a dialed telephone number, a redial key for redialing, and an emergency call. Wireless public telephone system comprising an emergency call key for. A first step of determining whether the plurality of wireless payphones are off-hook; after performing the first step, if one of the wireless payphones is off-hook and requests a call, the requested wireless payphone is connected to the cell site through a wireless channel. After the second step of making the call enabled state, after the first step is performed, the wireless telephone is not off-hook and transmits a non-hooked message to the non-off-hook wireless payphone and checks the failure state of the non-off-hook wireless payphone. After the third step of setting the basic call rate time, and after the second step, the wireless public telephone is off hooked and the call is terminated, the transmission and reception between the wireless communication means and the terminated wireless public telephone are canceled and the call is made. The fourth stage of transmitting the available message to the multiple wireless payphones after storing the toll time How to operate multiple wireless public telephone wireless public phone system, comprising a step of including.