JP2000287001A - Discrimination device for classifying information and terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a device to simply and properly manage model information covering various models and version information of various printed circuit boards. SOLUTION: A printed circuit board 1A of a public phone 1 is provided with a model information output section 19 that outputs a voltage division level of a power supply voltage VDD depending on the resistance of resistors, R1, R2 as model information (c) of the phone 1 and with a version information output section 20, that outputs the voltage division level depending on the resistance of resistors R3, R4 as version information (a) of the printed circuit board 1A, and a printed circuit board 1A is provided with a version/model information output section 26 that outputs the voltage division level depending on the resistance of resistors R5, R6 as version information (b) of a printed circuit board 1B. Then an A/D converter 21A converts the model information (c) and version information sets (a), (b) from each output section into digital values and a CPU 21 discriminates the model of the phone 1 and the version of the printed circuit boards 1A, 1B, on the basis of the digital values.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a type information discriminating apparatus for discriminating the type of a model of a public telephone or the like, and a terminal device.

[0002]

2. Description of the Related Art In general, there are different types of terminal devices such as public telephones, and conventionally, model information corresponding to each type of such devices and information on the revision of a printed circuit board in a device in which each electric component is mounted. And the like are written on a label, attached to the printed circuit board, and managed. Further, it has also been practiced to store and manage the model information of such a model and the board revision information in a memory of a public telephone.

[0003]

However, in the conventional management method in which the model information corresponding to each model and the revision information of each board are written on a label and pasted on the board, the label is written on the label or the label is printed on the board. There are drawbacks in that the work such as sticking becomes complicated, and that a work error easily occurs. Further, in the method of storing and managing data such as model information and board revision information in a memory, the data such as the revision information may be lost due to memory exchange or loss of memory contents. Therefore, an object of the present invention is to easily and accurately manage model information and revision information of each board corresponding to each different model.

[0004]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention is to input type information indicating a type of a model or a board version number, and to input a model or board version based on the input type information. Kind Code: A1 A type information determining device for determining the type of a number, comprising a type information output unit for outputting a voltage signal of a level corresponding to the type as type information, wherein the level of the voltage signal output from the type information output unit is a digital signal. And the type is determined based on the converted digital signal and preset data. In this case, the type information output unit includes first and second resistors that are connected in series and at least one of the values is variable according to the type, and outputs the type information to the first and second resistors.
Are output as voltage signals in accordance with the ratios of the respective values of the resistors.
Also, the present invention is a terminal device for inputting type information indicating a type of a model or a version number of a board and identifying the type of the terminal, and outputting a voltage signal of a level corresponding to the type as type information. It has an output unit, converts the level of the voltage signal output from the type information output unit into a digital signal, and identifies its own type based on the converted digital signal and preset data. In this case, the type information output unit includes first and second resistors that are connected in series and at least one of the values is variable according to the type,
The type information is output as a voltage signal corresponding to the ratio of each value of the first and second resistors. The information processing apparatus further includes a download unit that transmits the type information to a center device that stores a program corresponding to the type information of the terminal device and downloads a program corresponding to the type information. Further, the terminal device is a public telephone.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the main configuration of a public telephone to which the present invention is applied. The public telephone 1 is provided with printed circuit boards (hereinafter, referred to as boards) 1A and 1B on which electric components are mounted, and a coin mechanism 1C having a mechanism for selecting, storing, and storing coins.

[0006] Here, a telephone line (hereinafter, referred to as a telephone line) is provided on the substrate 1A.
Lines) Surge absorbing circuit 11 connected to L1 and L2 to absorb surges arriving at lines L1 and L2, lines L1 and L2
Rectifier circuit 12 composed of diodes D1 to D4 for rectifying a signal from the telephone line L when a call charge runs short during a call.
A strong cut-off circuit 13 for forcibly cutting the DC loop of L1 and L2 and interrupting the DC loop when sending a dial signal (dial pulse signal), which is generated when a dial signal (dial pulse signal) is sent to the lines L1 and L2. A shunt circuit 14 for eliminating noise and a communication circuit 15 are mounted.

A hook switch HS and a relay contact RL are mounted between the surge absorbing circuit 11 and the rectifier circuit 12 on the board 1A, and the hook switch HS and the relay contact RL are connected in parallel. Also, the relay contact RL
Is connected to an incoming circuit 17. Further, between the rectifier circuit 12 and the communication circuit 15 on the board 1A, a zener diode ZD that generates a predetermined voltage from both ends when a station current from an exchange (not shown) is supplied to the lines L1 and L2 is mounted. Then, a control power supply unit 18 is connected to the Zener diode ZD, which receives the voltage generated by the Zener diode ZD, generates a power supply voltage VDD, and supplies the power supply voltage VDD to each unit such as a CPU 21 described later of the telephone.

Further, the public telephone 1 is provided on the substrate 1A.
A model information output unit 19 composed of resistors R1 and R2 for outputting the model information is mounted. Here, when the values of the resistors R1 and R2 are changed according to each model of the public telephone (the value of one of the resistors may be changed), the voltage of the power supply voltage VDD is divided at the connection point between the resistors R1 and R2. Changes. This partial pressure level is output as model information c of the public telephone. The board 1A is provided with a version information output unit 20 including resistors R3 and R4 for holding version information of the board 1A. Here, when it is necessary to change the version of the substrate 1A when the circuit in the substrate 1A is changed, the values of the resistors R3 and R4 are changed (the value of one of the resistors may be changed). Then, the voltage division of the power supply voltage VDD changes at the connection point of the resistors R3 and R4, and this voltage division level is output as the version number information a of the substrate 1A.

On the other hand, an A / D converter 2 is provided on the substrate 1B.
CPU 21 which has built-in 1A and controls the entire public telephone 1
And I / O connected to the CPU 21 via the bus BUS
22 which is also connected to the CPU 21 via the bus BUS and stores programs executed by the CPU 21 and the like.
M23, a RAM 24 connected to the CPU 21 via a bus BUS to store data, and a coin sorting circuit 25 for sorting coins inserted into the coin mechanism 1C are mounted, and power is supplied from the control power source 18 of the board 1A. Voltage VDD
Is supplied. The board 1B is provided with a version / model information output unit 26 composed of resistors R5 and R6 for outputting version information of the board 1B. Here, when it is necessary to change the version of the substrate 1B when the circuit in the substrate 1B is changed, the values of the resistors R5 and R6 are changed (the value of one of the resistors may be changed). Then
At the connection point of the resistors R5 and R6, the voltage division of the power supply voltage VDD changes, and this voltage division level is output as the version number information b of the substrate 1B.

The CPU 21 of the board 1B is connected to the model information output section 19 and the version information output section 20 of the board 1A, and the I / O 22 of the board 1A is omitted from the drawing. It is connected to a disconnecting circuit 13, a shunt circuit 14, and a receiving circuit 17.

Therefore, the CPU 21 of the board 1B sends the incoming call to the lines L1 and L2 to the incoming circuit 17 and the I / O2.
2 can be detected. Also, C of the substrate 1B
When a dial key (not shown) is operated, the PU 21 detects this operation and controls opening / closing of the switch SW1 of the strong cutoff circuit 13 via the I / O 22 to transmit a dial pulse signal to the lines L1 and L2. In addition, by closing the switch SW2 of the shunt circuit 14 via the I / O 22 during the transmission of the dial pulse, it is possible to prevent the noise generated when the dial pulse is transmitted from being transmitted to the communication circuit 15 side. Further, when the coin mechanism unit 1C runs out of coins during the call, the call can be forcibly disconnected by opening the switch SW1 of the strong cut circuit 13 via the I / O 22 for a certain period of time.

The A / D converter 21A, which is built in the CPU 21 and converts the level of the input voltage signal into a digital value, is capable of 8-bit individual input, of which input ports P4 and P4 corresponding to 2 bits are provided. P5 is connected to the coin selection circuit 25, and input ports P6, P7, P8 (not shown) corresponding to the other three bits are connected to other circuits of the public telephone 1, and the remaining three input ports P1, P2, and P3 are connected to a model information output unit 19, a version number information output unit 20, and a version number / model information output unit 26, respectively.

Here, the model information output unit 19 mounted on the board 1A divides the power supply voltage VDD by the respective values of the resistors R1 and R2 connected in series as described above, and Output to the port P1 as model information c. Therefore, by changing the partial pressure level of the public telephone by changing the resistance value between the model A and the model B, for example, and outputting it to the port P1, the port P1
The divided voltage level of each model input to the CPU 2 is set as different digital values by the A / D converter 21A.
The CPU 21 compares the input digital value with the set value set in the ROM 23 to determine whether it is a public telephone of type A or a public telephone of model B.

The version number information output unit 20 mounted on the substrate 1A also divides the power supply voltage VDD by the respective values of the resistors R3 and R4 connected in series as described above, and Output to the port P2 as version number information a. Therefore, by changing the resistance value between the A-version board and the B-version board, for example, by changing the divided voltage level and outputting the same to the port P2, the board 1A is provided for each version input to the port P2. Are output to the CPU 21 as different digital values by the A / D converter 21A.
1 can determine whether the board 1A is the A version or the B version by comparing the input digital value with the set value set in the ROM 23.

Further, the number of editions mounted on the substrate 1B /
The model information output unit 26 also divides the power supply voltage VDD by the values of the resistors R5 and R6 connected in series as described above, and outputs the divided level to the port P3 of the CPU 21 as version number information b. Therefore, for example, by changing the resistance value of the substrate 1B between the A-version substrate and the B-version substrate to change the voltage division level and output the voltage to the port P3, each version input to the port P3 can be changed. Are output to the CPU 21 as different digital values by the A / D converter 21A, and the CPU 21 reads the input digital value and the ROM 23
Board 1 by comparing the set value set in
It is possible to determine whether B is A version or B version.

As described above, the board 1A of the public telephone 1
A model information output unit 19 is provided for outputting the divided voltage level of the power supply voltage based on the respective values of the series-connected resistors R1 and R2 as model information c of the public telephone 1, and the respective values of the series-connected resistors R3 and R4. A version number information output unit 20 for outputting the divided voltage level of the power supply voltage based on the number of pieces as the version number information a of the substrate 1A, and a resistor R connected in series to the substrate 1B.
The divided level of the power supply voltage based on each value of
Version number / model information output section 2 to be output as version number information b of B
A / D converter 2 built in CPU 21
1A inputs model information c and version number information a and b output from each output unit to each of them, converts them into digital values,
The PU 21 determines the model of the public telephone 1 and the version of each of the boards 1A and 1B from these digital values. As a result, the model information of the public telephone and the version number information of the board can be set and output with a simple configuration, and the type information and the version number information can be accurately determined, so that the respective information can be managed simply and accurately. If there are a plurality of types of model information and version information, the model information output unit 1
9 / A plurality of sets of version number information output units 20 may be provided.

A program can be loaded into the public telephone 1 configured as described above from a management center that collectively manages the public telephones. FIG. 2A is a block diagram showing the configuration of the management center 2. The management center 2 includes a CPU 31, a line interface 32 connected to the line group Ln, an operation unit 33, and a program for each public telephone. It comprises a memory 34 to be stored and a display unit 35.

Here, the management center 2 is connected to an exchange (not shown) via a line group Ln composed of a plurality of lines, and further connected to each public telephone via the exchange. When an incoming call from a public telephone arrives via the line interface 32, the CPU 31 of the management center 2 automatically responds to the incoming call, and thereafter, a line number,
The program corresponding to the model information and the version number information is stored in the memory 34.
And load it into a public telephone. Further, the CPU 31 of the management center 2 calls the public telephone via the line interface 32, and when the public telephone returns its own model information and version number information in response to the incoming call, the CPU 31 adds the model information and version number information to the public telephone. The corresponding program is taken out of the memory 34 and loaded on the public telephone.

FIG. 2B is a diagram showing the configuration of the memory 34 of the management center 2. The memory 34 stores a telephone number and a management number of each public telephone in a line number area 34.
A, a model information area 34B in which model information is stored,
Version number information area 34C for storing version number information, and program data storage area 3 for storing program data
4D is provided.

When the CPU 31 of the management center 2 receives the line number from the public telephone to which the program is to be loaded, it first searches the line number area 34A for a matching number, and then searches for a model corresponding to the matching number. From the information area 34B, a search is made for model information that matches the received model information. When the matching model information is searched, the version information corresponding to the received version information is searched from the version information area 34C corresponding to the model information, and the matching version information is detected. And the corresponding program data in the program data storage area 34D are read and loaded into the public telephone.

FIG. 3 is a sequence diagram showing a program loading operation of the public telephone 1. First, FIG.
The following describes the program download operation by the public telephone 1 shown in FIG. In the public telephone 1, in order to load an application program corresponding to a new model or version from the management center 2 into the electrically writable ROM 23, the model information output unit 19 and the version information output unit 20, When the value of each resistor of the number / model information output unit 26 is determined and attached to the corresponding output unit, and then off-hook, the public telephone 1 automatically makes a dial call to the management center 2 in step S1. Then, an incoming call arrives at the management center 2. When the management center 2 responds to this incoming call in step S3, it returns a response signal to the public telephone 1 in step S3. Upon receiving the response signal in step S4, the public telephone 1 transmits a command to the management center 2 in step S5. That is, in this case, the public telephone 1
Then, the failure data of the self-diagnosis result, the line number to which the public telephone is connected, the above-mentioned model information and the board version (version number) information are transmitted to the management center 2 as the command.

When the management center 2 receives the information in step S6, it associates the information with the line number in the memory 3
4 and, if the public telephone 1 is not at fault, read out a program corresponding to the model and version information of the public telephone 1 stored in the memory 34 in association with the line number, and as response data in step S7. Return to public telephone 1.

In the public telephone 1, when the response data is received in step S8, the program data included in the response data is input and stored in the ROM 23 as application program data. When the downloading of such a program is completed, the public telephone 1 forcibly disconnects the lines L1 and L2 by disconnecting the switch SW1 of the strong disconnection circuit 13 for a predetermined time in step S9. As a result, the management center 2 recognizes that the program is normally loaded on the corresponding public telephone and the line is severed thereafter (step S10).

Next, an operation of downloading a program from the management center 2 to the public telephone 1 will be described based on the sequence of FIG. In the public telephone 1, as described above, in order to load an application program corresponding to a new model and version from the management center 2 into the ROM 23, the model information output unit 19 and the version information output unit 2
0, the value of each resistor of the version number / model information output unit 26 is determined and mounted on the corresponding output unit. On the other hand, the management center 2 periodically makes a dial call to each public telephone and downloads the program of the corresponding public telephone stored in the memory 34.

Here, the management center 2 determines in step S11 the dial number addressed to the public telephone 1 (that is, the line number).
Is dialed, an incoming call arrives at the public telephone 1. Then, the public telephone 1 sets the relay contact RL in step S12.
Automatically closes the lines L1 and L2 to automatically answer the incoming call,
To return a response signal to the management center 2. Receiving the response signal in step S14, management center 2 transmits a command including the management number of public telephone 1 to public telephone 1 in step S15.

When the public telephone 1 receives the command in step S16, it returns a response to the effect that the command has been received to the management center 2 in step S17. Upon receiving the response in step S18, the management center 2 issues a polling request to the public telephone 1 in step S19, indicating a data output request. When the public telephone 1 receives this polling request in step S20, it returns response data including its own self-diagnosis result failure data, model information, and board version information in step S21.
To the management center 2.

When the management center 2 receives the information in step S22, it stores the information in the memory 34 in association with the telephone management number, and when the public telephone 1 is not malfunctioning, associates it with the telephone management number (or line number). In step S23, a program corresponding to the model and version information of the public telephone 1 stored in the memory 34 is read and transmitted to the public telephone 1 as response data.

In the public telephone 1, when the response data is received in step S24, a program included in the response data is input and stored in the ROM 23 as application program data. Thereafter, when the download of the program is completed, the public telephone 1 returns the response data indicating that the download was normally performed to the management center 2 in step S25. Upon receiving the response data in step S26, the management center 2 forcibly disconnects the path to the public telephone 1 by opening the line in step S27. Thereby, the public telephone 1 restores the relay contact RL in step S28 and forcibly releases the loops of the lines L1 and L2.

By transmitting the model information and the version information from the public telephone 1 as described above, the management center 2
Thus, a program according to the model and version of the public telephone 1 can be loaded into the public telephone 1. In addition, since the management center 2 receives the version information from each public telephone and stores it in the memory 34, the version of the board of each public telephone can be managed collectively, causing a problem in the circuit mounted on the board. In this case, it is possible to easily determine which version of the board has a defect. Therefore, it is possible to easily recognize which circuit of the corresponding substrate should be modified and how the problem can be solved. Also, when there is a new specification to be added to the circuit mounted on the board, similarly, it is possible to easily determine which circuit of which version of the board should add the new specification. In the present embodiment, an example of a public telephone has been described.
The same effect can be obtained even when applied to other telephone devices or other devices.

[0030]

As described above, according to the present invention, there is provided a type information output unit for outputting as a type information a voltage signal of a level corresponding to the type of the model or the version of the board, and output from the type information output unit. The level of the voltage signal to be converted is converted into a digital signal, and the type is determined based on the converted digital signal and preset data. Therefore, when managing the type information of the model and the board, the determination result is obtained. Is displayed, the complicated work of writing the type information on the label one by one and pasting it on the board is avoided, and the type information is lost due to replacement of the memory or loss of the memory contents. Therefore, it is possible to easily and accurately manage the type information of the model and the board.
Further, the type information output unit is composed of first and second resistors that are connected in series and at least one of the values is variable according to the type, and the type information is a ratio of each value of the first and second resistors. Is output as a voltage signal corresponding to the type information, the type information output unit can always hold the type information. In a terminal device for inputting type information indicating a type of a model or a version number of a board and identifying its own type, the terminal device includes a type information output unit that outputs a voltage signal of a level corresponding to the type as type information. The terminal device converts the level of the voltage signal output from the information output unit into a digital signal, and identifies its own type based on the converted digital signal and preset data. , Or which version of the substrate is easily recognized. Further, the type information output unit is composed of first and second resistors that are connected in series and at least one of the values is variable according to the type, and the type information is a ratio of each value of the first and second resistors. Is output as a voltage signal corresponding to the above, so that the type information output unit can similarly always hold the type information. Also, since the type information is transmitted to the center device storing the program corresponding to the type information of the terminal device and the program corresponding to the type information is downloaded, the terminal device downloads the program adapted to its own type. Can be loaded from the center device. In addition, since the terminal device is a public telephone, a public telephone having a large number of models and frequently updating a board can easily identify which model or board version of the public phone itself is. it can.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a public telephone to which the present invention is applied.

FIG. 2 is a block diagram (FIG. 2A) showing a configuration of a management center for collectively managing each public telephone, and a diagram (FIG. 2B) showing a configuration of a memory of the management center.

FIG. 3 is a sequence diagram showing a program loading operation performed between a public telephone and a management center.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Public telephone, 1A, 1B ... Printed circuit board, 1C ... Coin mechanical part, 2 ... Management center, 11 ... Surge absorption circuit,
12 rectifier circuit, 13 strong disconnection circuit, 14 shunt circuit, 15 communication circuit, 17 reception circuit, 18 control power supply section, 19 model information output section, 20 version information output section, 2
6 ... version number / model information output unit, 21, 31 ... CPU, 21
A: A / D converter, 22: I / O, 23: ROM,
24 RAM, 25 coin sorting circuit, R1 to R6 resistors, L1, L2 telephone line.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hisaya Harada 2-3-2 Shimomeguro, Meguro-ku, Tokyo F-term in Tamura Electric Co., Ltd. (Reference) 5K040 AA00 BB02 DD02 EE06 FF01 FF11 JJ02

Claims (6)

[Claims] 1. A type information discriminating apparatus for discriminating a type of a model or a version of a board on the basis of type information indicating a type of a version of a board on which a component or a component is mounted. A type information output unit that outputs a voltage signal as the type information; a conversion unit that converts a level of the voltage signal output from the type information output unit into a digital signal; and a digital signal output from the conversion unit, which is set in advance. And a discriminating unit for discriminating the type based on the obtained data. 2. The type information output unit according to claim 1, wherein the type information output unit includes first and second resistors connected in series and at least one of the values is variable according to the type, and the type information includes the first and second resistances. A type information discriminating device which is output as a voltage signal according to a ratio of each value of a second resistor. 3. A terminal device for identifying the type based on type information indicating a type of a board on which a model or a component is mounted, wherein a voltage signal of a level corresponding to the type is output as the type information. A type information output unit, a conversion unit that converts the level of the voltage signal output from the type information output unit to a digital signal, and a type based on the digital signal output from the conversion unit and preset data. A terminal device comprising: an identification unit for identifying; 4. The type information output unit according to claim 4, wherein the type information output unit includes first and second resistors connected in series and at least one of the values is variable according to the type, and the type information includes the first and second resistances. A terminal device which is output as a voltage signal according to a ratio of each value of the second resistor. 5. The download unit according to claim 3, wherein the type information is transmitted to a center device that stores a program corresponding to the type information of the terminal device, and a program corresponding to the type information is downloaded. A terminal device comprising: 6. The terminal device according to claim 3, wherein the terminal device is a public telephone.