JP3451975B2 - Type information discriminating device and terminal device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a type information discrimination device and a terminal device for discriminating the type of a model such as a public telephone.

[0002]

2. Description of the Related Art Generally, terminal devices such as public telephones have different models, and conventionally, model information corresponding to each model and information on revision of a printed circuit board in a device in which each electric component is mounted. Etc. are filled out on a label and attached on the printed circuit board for management. In addition, model information of such models and board revision information are also stored in the memory of public telephones and managed.

[0003]

However, according to the conventional management method in which the model information corresponding to each model and the revision information of each board are written on the label and pasted on the board, it is necessary to write on the label or label the board. There is a drawback that the work such as sticking is complicated and a work mistake is likely to occur. Further, in the method of storing and managing data such as model information and board revision information in the memory, the revision information and the like data may be lost due to replacement of the memory or loss of the memory contents. Therefore, an object of the present invention is to easily and accurately manage model information corresponding to different models and revision information of each board.

[0004]

In order to solve such a problem, the present invention provides model information indicating a model and a board version number .
It represents a type information discriminating apparatus for discriminating <br/> the version number of the substrate and the model based on the version number information are serially connected small
Even if one of the values is variable depending on the model
It consists of two resistors, and the ratio of each value of the first and second resistors
A model information output section that outputs a corresponding voltage signal as model information, and at least one value connected in series is the board version number.
It consists of the 3rd and 4th resistance which becomes variable according to
And version number information according to the ratio of each value of the fourth resistance
And a version number information output section for outputting the voltage signal levels respectively output from the model information output section and the version number information output section as first and second digital signals, respectively , and converted to the first digital signal . The model is identified and converted based on the digital signal and preset data .
Based on the second digital signal and preset data
It is characterized by determining the plate number of the substrate . Also, the present invention is the version number of models and the substrate on the basis of the version number information indicating the version number of model information and group <br/> plate representing the model
A terminal apparatus for identifying the door, the model information output unit 及
And the version number information output section , and the model information output section and version number
The level of the voltage signals output from the information output unit
Converted into first and second digital signals respectively , identifying the model based on the converted first digital signal and preset data, and converting the converted second digital signal.
Circuit board based on the digital signal and preset data
Identifies the version number of . Also, with respect to a center device for storing a program corresponding to the model information <br/> paper and version number information of the substrate of the terminal device transmits the version information of the model information and the substrate a program corresponding to the transmitted information It is provided with a download means for downloading.

[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 a 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 circuit boards) 1A and 1B on which respective electric parts are mounted, and a coin mechanical section 1C having a mechanism for selecting, accumulating and storing coins.

Here, a telephone line (hereinafter,
Line) L1 and L2 are connected to the surge absorbing circuit 11 for absorbing surges coming to the lines L1 and L2, lines L1 and L2
Rectifier circuit 12 including diodes D1 to D4 for rectifying the signal from the line L when the call charge is insufficient during the call.
It is generated when a dial signal (dial pulse signal) is sent to the lines L1 and L2, and a dead cut circuit 13 that forcibly disconnects the DC loop of 1 and L2 and interrupts the DC loop when sending a dial signal (dial pulse signal). A shunt circuit 14 and a communication circuit 15 for eliminating noise 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 substrate 1A, and the hook switch HS and the relay contact RL are connected in parallel. In addition, relay contact RL
An incoming circuit 17 is connected to. Further, between the rectifier circuit 12 and the communication circuit 15 on the board 1A, a Zener diode ZD is mounted which generates a predetermined voltage from both ends when a local current from a switch (not shown) is supplied to the lines L1 and L2. Then, the control power supply unit 18 is connected to the Zener diode ZD by inputting the generated voltage of the Zener diode ZD to generate the power supply voltage VDD and supplying the power supply voltage VDD to each unit such as a CPU 21 described later of the telephone.

Furthermore, the public telephone 1 is mounted on the substrate 1A.
A model information output unit 19 including resistors R1 and R2 for outputting the model information is mounted. Here, if the values of the resistors R1 and R2 are changed according to each model of the public telephone (the value of either one of the resistors may be changed), the divided voltage of the power supply voltage VDD at the connection point of the resistors R1 and R2. Will change. This partial pressure level is output as model information c of the public telephone. Further, the board 1A is equipped with a version information output unit 20 including resistors R3 and R4 for holding version information of the board 1A. If it is necessary to change the version of the board 1A when the circuit in the board 1A is changed, the values of the resistors R3 and R4 are changed (the value of either 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, the substrate 1B has an A / D converter 2
CPU 21 that incorporates 1A and controls all of the public telephone 1
And the I / O connected to the CPU 21 via the bus BUS
22 and an RO that is connected to the CPU 21 via the bus BUS and stores programs executed by the CPU 21
An M23, a RAM 24 connected to the CPU 21 via a bus BUS for storing data, and a coin sorting circuit 25 for sorting coins inserted in the coin mechanical unit 1C are mounted, and a power source is supplied from the control power source unit 18 of the substrate 1A. Voltage VDD
Is being supplied. Further, the board 1B is equipped with a version / model information output unit 26 including resistors R5 and R6 for outputting version information of the board 1B. Here, when it is necessary to change the version of the board 1B when the circuit in the board 1B is changed, the values of the resistors R5 and R6 are changed (the value of either 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 R5 and R6, 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 number information output section 20 of the board 1A, and the I / O 22 of the board 1A is not shown in the figure, but it is not shown. It is connected to the cutting circuit 13, the shunt circuit 14, and the incoming circuit 17.

Therefore, the CPU 21 of the board 1B receives the incoming call on the lines L1 and L2 from the incoming circuit 17 and the I / O2.
2 can be detected. In addition, C of the substrate 1B
When a dial key (not shown) is operated, the PU 21 can send a dial pulse signal to the lines L1 and L2 by detecting it and controlling the opening / closing of the switch SW1 of the dead-stop circuit 13 via the I / O 22. Further, by closing the switch SW2 of the shunt circuit 14 via the I / O 22 during the dial pulse transmission, it is possible to prevent the noise generated during the dial pulse transmission from being transmitted to the communication circuit 15 side. Further, when coins run out in the coin mechanical unit 1C during a call, the call SW can be forcibly cut off by opening the switch SW1 of the dead cut circuit 13 through the I / O 22 for a certain period of time.

By the way, the A / D converter 21A built in the CPU 21 and converting the level of the input voltage signal into a digital value is capable of individual input of 8 bits, of which the input port P4 corresponding to 2 bits. P5 is connected to the coin selection circuit 25, and input ports P6, P7, and 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 are provided. P1, P2, and P3 are connected to the model information output unit 19, the version number information output unit 20, and the version number / model information output unit 26, respectively.

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

In the version number information output unit 20 mounted on the board 1A, the power supply voltage VDD is divided by the respective values of the resistors R3 and R4 connected in series as described above, and this divided voltage level is stored in the CPU 21. The version number information a is output to the port P2. Therefore, if the board 1A is, for example, an A-version board and a B-version board, the resistance value is changed to change the voltage division level to output the voltage to the port P2. For each version input to the port P2. The partial pressure level of is 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 setting value set in the ROM 23.

Furthermore, the number of plates mounted on the board 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, if the board 1B is, for example, an A-version board and a B-version board, the resistance value is changed to change the voltage division level to output the voltage to the port P3. For each version input to the port P3. The divided voltage level of is output to the CPU 21 as different digital values by the A / D converter 21A, and the CPU 21 inputs the input digital value and the ROM 23.
Board 1 by comparing with the set value set in
It is possible to determine whether B is the A version or the B version.

In this way, on the substrate 1A of the public telephone 1,
A model information output unit 19 that outputs the voltage division level of the power supply voltage based on the values of the resistors R1 and R2 connected in series as the model information c of the public telephone 1 is provided, and the values of the resistors R3 and R4 connected in series are also provided. A version number information output section 20 for outputting the divided voltage level of the power supply voltage as the version number information a of the board 1A is provided, and a resistor R connected in series to the board 1B.
The voltage division level of the power supply voltage based on each value of
Version number / model information output unit 2 output as version number information B of B
A / D converter 2 provided with 6 and built in the CPU 21
1A inputs the model information c and the version number information a and b which are respectively output from each output section, converts them into digital values, and C
The PU 21 is adapted to determine the model of the public telephone 1 and the versions 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 circuit board can be set and output by a simple configuration, and the model information and the version number information can be accurately discriminated, so that each of the above-mentioned information can be managed easily and accurately. If the model information and version number information cover multiple types, the model information output unit 1
9 / version number information output unit 20 may be provided in plural sets.

A program can be loaded into the public telephone 1 configured as described above from a management center that collectively manages each public telephone. 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 programs 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 consisting of a plurality of lines, and further connected to each public telephone through the exchange. The CPU 31 of the management center 2 automatically responds to an incoming call from the public telephone via the line interface 32, and then the line number sent from the public telephone,
The memory 34 stores programs corresponding to model information and version number information.
And load it into a payphone. Further, the CPU 31 of the management center 2 calls a public telephone through the line interface 32, and when the public telephone responds to the incoming call and returns its own model information and version number information, the model information and version number information are displayed. The corresponding program is taken out from the memory 34 and loaded into the public telephone.

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

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

FIG. 3 is a sequence showing a program loading operation of the public telephone 1. First, FIG. 3 (a)
The program download operation by the public telephone 1 will be described. In the public telephone 1, in order to load an application program corresponding to a new model and version from the management center 2 into the electrically writable ROM 23, the model information output unit 19 and the version number information output unit 20 When the value of each resistance of the number / model information output unit 26 is set and attached to each corresponding output unit, and then off-hook, the public telephone 1 automatically dials 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. When the public telephone 1 receives the response signal in step S4, the command is transmitted 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 model information and the board version (version number) information described above are transmitted to the management center 2 as the command.

When the management center 2 receives these pieces of information in step S6, the memory 3 is associated with the line number.
4, and if the public telephone 1 is not in failure, the program corresponding to the model and version information of the public telephone 1 stored in the memory 34 in association with the line number is read out and is used 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 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 deadline circuit 13 for a certain period of time in step S9. As a result, the management center 2 recognizes that the program has been normally loaded on the public telephone side and the line has been closed thereafter (step S10).

Next, the download operation of the program from the management center 2 to the public telephone 1 will be described based on the sequence of FIG. 3 (b). In the public telephone 1, as described above, in order to load an application program corresponding to a new model or version from the management center 2 into the ROM 23, the model information output unit 19 and the version number information output unit 2
0, the value of each resistance of the version number / model information output unit 26 is determined and attached to each corresponding output unit. On the other hand, the management center 2 periodically dials each public telephone to download the program of the corresponding public telephone stored in the memory 34.

In step S11, the management center 2 dials the public telephone 1 (that is, the line number).
When you dial, the incoming call arrives at the public telephone 1. Then, the public telephone 1 relays the relay contact RL in step S12.
To automatically answer the incoming call by automatically closing the lines L1 and L2 in a loop.
Then, the response signal is sent back to the management center 2. When the management center 2 receives the response signal in step S14, the management center 2 transmits a command including the management number of the public telephone 1 to the public telephone 1 in step S15.

When the public telephone 1 receives the command in step S16, it returns a response indicating that the command has been received to the management center 2 in step S17. When the management center 2 receives the response in step S18, it issues a polling request indicating a data output request to the public telephone 1 in step S19. When the public telephone 1 receives the polling request in step S20, it receives response data including failure data of its self-diagnosis result, model information, and board version information in step S21.
And send it back to Management Center 2.

When the management center 2 receives these pieces of information in step S22, the information is associated with the telephone management number and stored in the memory 34, and when the public telephone 1 is not in failure, it is associated with the telephone management number (or line number). The program corresponding to the model and version information of the public telephone 1 stored in the memory 34 is read out and transmitted to the public telephone 1 as response data in step S23.

In the public telephone 1, when the response data is received in step S24, the program included in the response data is input and stored in the ROM 23 as application program data. After that, when the download of the program is completed, the public telephone 1 returns the response data indicating that the download is normally performed to the management center 2 in step S25. When the management center 2 receives the response data in step S26, the line with the public telephone 1 is forcibly cut off by opening the line in step S27. As a result, the public telephone 1 restores the relay contact RL in step S28 and forcibly opens the loop of the lines L1 and L2.

As described above, by transmitting the model information and the version information from the public telephone 1, the management center 2
Then, a program corresponding to the model and version of the payphone 1 can be loaded into the payphone 1. Further, when the management center 2 receives the version information from each public telephone and stores it in the memory 34, it is possible to collectively manage the versions of the boards of each public telephone, and the circuit mounted on the board has a problem. In this case, it is possible to easily determine which version of the board has the defect. Therefore, it is possible to easily recognize which circuit on the corresponding board and how to correct the problem. Further, even when there is a specification to be newly added to the circuit mounted on the board, similarly, it is possible to easily determine to which circuit of which version of the board the new specification should be added. In the present embodiment, an example of a public telephone has been described,
Even if it is applied to other telephone devices and other devices, the same effect can be obtained.

[0030]

According to the present invention described above, according to the present invention, comprises a model information output unit and the version number information output unit respectively <br/> output level of the voltage signal corresponding to the version number of the type and the substrate, the level of the voltage signal output from each <br/> output section first
And into a second digital signal, as well as determine the type based on the converted first digital <br/> barrel signals with preset data previously and second digital signals converted
Since the version number is discriminated based on the set data, if the discrimination result is displayed when managing the model number and board version number , such model and board
The complicated work of writing the type information such as the version number on each label and pasting it on the board is avoided, and the situation where the type information is lost due to replacement of the memory or loss of the memory contents can be prevented. You can easily and accurately manage model and board type information. Further, each output unit can always hold the type information. Further, the terminal device identifies its type by entering the type information and model and version of the board, model information output unit and the version number for outputting the level of the voltage signal corresponding to the version number of the type and the substrate, respectively Emotion
Includes a multicast output unit converts the level of the voltage signal output from each output unit to the first and second digital signals,
The own model is identified based on the converted first digital signal and preset data, and the converted second signal
Based on the digital signal and preset data of
Since the version number is identified , the terminal device can easily recognize what kind of model it has and what version of the board it has. Further, each output unit can also always hold the type information. Further, the model and the plate relative to the center device for storing a program corresponding to the model and version number information of the terminal device
It transmits the information on the number since so as to download the program corresponding to the transmission information, the terminal apparatus itself of the machine
A program suitable for the type and version can be loaded from the center device.

[Brief description of drawings]

FIG. 1 is a block diagram showing a main configuration 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 that collectively manages 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 ... Deadline circuit, 14 ... Shunt circuit, 15 ... Call circuit, 17 ... Incoming 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-R6 ... Resistors, L1, L2 ... Telephone line.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-157381 (JP, A) JP-A-9-297634 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H04M 17/00-17/02

Claims (3)

(57) [Claims] 1. A on the basis of the version number information model information and the component representing the model represents the version number of <br/> board mounted to determine the version number of the <br/> substrate and the model type In the information discriminating device, at least one of the values connected in series can be changed according to the model.
Consisting of first and second resistors,
A model information output unit that outputs a voltage signal corresponding to the ratio of the value of resistance as the model information, at least one value are connected in series in response to the version number of the substrate
It is composed of a variable third and fourth resistance,
A voltage signal corresponding to the ratio of each value of the fourth resistor is used as the version number information.
And version number information output unit for outputting as a broadcast, then the model information output unit and the version number information output unit
The is the level of the voltage signal output, respectively first and second
A converter for converting the digital signal, if it is determined the model based on the first digital signal and the preset data converted by the conversion unit bets
Mostly, the second digital signal converted by the converter.
And the version number of the board based on the preset data
A type information discriminating apparatus comprising a discriminating section for discriminating. [Claim 2] Model information indicating a model and parts are mounted.
Based on the version number information indicating the version number of the board,
In the terminal device for identifying a version number of the substrate, at least one of the series connection value comprises first and second resistors is variable depending on the model, the first and second values of resistors The voltage signal according to the ratio is used as the model information.
Connected in series with the model information output section that outputs at least one of the values depending on the version number of the board.
It is composed of a variable third and fourth resistance,
A voltage signal corresponding to the ratio of each value of the fourth resistor is used as the version number information.
The version number information output section for outputting as a report, the model information output section and the version number information output section, respectively.
The level of the output voltage signal is set to the first and second levels, respectively.
And a first digital signal converted by the conversion unit in advance.
If the model is identified based on the set data,
Moni, the second digital signal converted by the conversion unit
And the version number of the board based on the preset data
Terminal device comprising the identification portion identifies. 3. The method according to claim 2 , wherein the model information of the terminal device and the version number information of the board are used.
For the center device that stores the program, the model information and
Corresponding to this transmission information by transmitting the board version number information
A terminal device comprising a download means for downloading a program .