JPS621352A - Public telephone set - Google Patents

Abstract

PURPOSE:To change easily parameter information by providing a storage device where parameter information transmitted following determined code information peculiar to a public telephone set is stored. CONSTITUTION:When parameter information in one of many public telephone sets 20 is changed, preliminarily determined peculiar code information and parameter information are sent to the objective public telephone set 20 from a parameter setting device 10 through an exchange 11. The telephone set 20 receives code information and parameter information through a speaking circuit 21 by an information receiver 22. A discriminating device 24 discriminates whether a code stored in a code storage device 23 and the received code coincide with each other or not, and following parameter information is stored in a storage device 25 if they coincide with each other. Thus, parameter information is changed easily without going to the place where the public telephone set is installed.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a public telephone set in which parameter information necessary for controlling the operation of the public telephone set can be set from the outside.

<Prior Art> In public telephones, a control circuit performs various operations such as determining whether a coin is inserted, coin storage processing, and other operations.This control is performed based on various parameter information stored in a parameter storage circuit in advance. It will be done.

However, in public telephones, this parameter information needs to be changed each time there is a revision in call charges or a change in currency.

For this reason, conventionally, as shown in FIG.
The OM1 is removable, and when changing parameter information, it is replaced with another ROM that stores new parameter information. (In addition, 3 in the figure is a control device of a public telephone.) <Problems to be solved by the present invention> However, each time a call charge is revised or a currency is changed, each public telephone It would take a long time, manpower, and expense to go to the location where each phone was installed and replace it.

Furthermore, since the ROM 1 was mounted through the socket 2, electrical contact failures were likely to occur.

Furthermore, when replacing ROM 1, it is necessary to check for poor connections and check whether the public telephone operates correctly based on the new parameter information, which is very complicated. It is an object of the present invention to provide a public telephone that solves the above problems and eliminates the need for the various complicated operations described above associated with changing parameter information.

<One embodiment of the present invention> Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figure 1.2 shows an embodiment of the invention.

In FIG. 1, 10 is a parameter setting device that outputs code information and parameter information in order to newly set parameters to each public telephone, 11 is a switch, and 20 is a public telephone.

FIG. 2 shows the configuration of each public telephone.

In FIG. 2, 2 indicates the line terminal of the public telephone 20;
1 is a communication circuit.

22 is an information receiving device that receives the code information and parameter information sent from the parameter setting device @10, and outputs the code information to the discrimination device 24 and the parameter information to the parameter storage device H25. 23 is a code storage device that stores preset code information, and
Different codes are established for each filling machine.

Reference numeral 24 denotes a determining device that determines whether or not the code information output from the information receiving device 22 and the code information stored in the code storage device 23 match, and outputs a matching signal when they match. 25 receives the matching signal from the discriminating device F24 and sends the stored parameter information to the information receiving device W.
This is a parameter storage device that rewrites and stores new parameter information output from 122. Reference numeral 26 denotes a control device that controls the determination of inserted coins, coin storage processing, and other operations of the public telephone based on the parameter information stored in the parameter storage device 25.

Operation of the above embodiment> As shown in Figure 1, a large number of public telephones 20120.20
, one of the public telephones 11120
When changing parameter information, the parameter setting device 10 connects the target public telephone 20
Send code information and parameter information to

The public telephone 20 automatically responds to the incoming call signal from the exchange 11, receives code information and parameter information at the information receiving device 22 via the telephone call circuit 21, and the code information received by the discriminating device 24 is stored in the code storage device. ! 2
It is determined whether the code information matches the code information stored in 3. If they match, the discrimination circuit 24 outputs a match signal. Upon receiving this match signal, the parameter storage device 25 stores the received new parameter information outputted from the information receiving device 22 by overwriting the old parameter information stored up to now.

In this way, the parameter setting device ff110 sequentially sends the parameter information together with the code information corresponding to each public telephone 20, 20, . . . to each public telephone 20, 20, . Change the parameters of...

Thus, according to the above embodiment, each public telephone 20.
Parameter information can be changed without going to the installation site of 20, . . . .

Other embodiments of the present invention> FIG. 3 shows another embodiment of the invention.

In this embodiment, an information transmitting device 27 is further provided in the public telephone 20 to transmit the rewritten parameter information to the parameter setting device 10 via the exchange 11 when the parameter information in the parameter storage device M25 is rewritten. be.

According to this embodiment, by receiving the parameter information after the change, the parameter setting device 10 can easily confirm that the parameter information has been changed correctly.

FIG. 4 shows another embodiment of the present invention realized using a microcomputer.

That is, in FIG. 4, 30 is an input/output circuit (I/0);
1 is a central processing unit (CPU), 32 is a read-only memory (ROM), and 33 is a read/write memory (RA).
M). The ROM 33 stores the operating procedures of the CP and (J32).

In this embodiment, the code information and parameter information received by the information receiving device 22 are sent to the CP via Ilo 30.
Sent to U31. CPLJ31 temporarily stores this code information and parameter information in RAM33. Then, the CPU 31 reads out the code information stored in the code storage device 23 and compares it with the code information stored in the RAM 33. If they match, the CPU 31 stores the code information in the parameter storage device F25 in the RAM 33 via the Ilo 30. New parameter information is output and rewritten and stored.

The embodiment shown in FIG. 5 further includes the information transmitting device 27, and when the rewriting of the parameter information in the parameter storage device 25 is completed, the CPIJ 31 reads out the parameter information newly stored in the parameter storage device 25. The information transmitting device 27 transmits this parameter information to the parameter setting device 10.

In addition, in the embodiment of FIG. 4.5, the parameter storage device! 25. Code storage device [23 can be configured with EEPROM or battery backup RAM.

Also, information transmission device! ! 27 can use a multi-frequency oscillator, a single-frequency oscillator, or the like.

Effects of the Present Invention> As explained above, according to the present invention, parameter information regulating the operating conditions of public telephones can be changed extremely easily without having to go to the installation site of each public W1 telephone as in the past. can be done.

Therefore, the number of days, personnel, and expenses can be significantly reduced.

Further, unlike the conventional method, there is no need to replace the parameter storage device, and since there is no need for a socket, there is no fear of electrical contact failure due to replacement, and there is no need for complicated inspection work for contact failure.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the parameter setting method of a public telephone according to the present invention, FIG. 2 is a block diagram showing the configuration of the public telephone, and FIGS. 3 to 5 are block diagrams showing other embodiments of the present invention. . FIG. 6 is a block diagram showing the main parts of a conventional public telephone. 1...ROM, 2...Socket, 3.
... Control device, 10 ... Parameter setting device, 11 ... Exchange, 20 ... Public telephone, 21 ... Call circuit, 22 ...・・・・・・
Information receiving device, 23... Code storage device, 24
...Discrimination device, 25...Parameter storage device, 26...Control device, 27...
Information transmitting device, 3゜...Ilo, 31...
...CPU, 32...ROM. 33...RAM. Patent Applicant Anritsu Electric Co., Ltd. Agent Patent Attorney Makoto Hayakawa No. 11 ] 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] a code storage device that stores predetermined code information unique to public telephones; an information receiving device that receives code information sent via an exchange; and code information received by the information receiving device. a discriminating device that compares code information stored in the code storage device and outputs a matching signal when the two match; a discriminating device that outputs a matching signal when the matching signal is output from the discriminating device; the code that is received by the information receiving device; A public telephone set comprising a parameter storage device that stores parameter information that regulates operating conditions of the public telephone set that is sent subsequently to the information.