JPH0315397B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is an information processing system using a plurality of processors. This relates to a positioning method for specifying information as information.

In contrast to this positioning method, the information generated by the key switches of various input/output devices or the information displayed by lighting lamps, etc. is determined according to the mechanical arrangement of the keys switches or lamps, etc. , it is necessary to generate or display specific information using key switches or lamps arranged in different order for each input/output device. Conventionally, this was done by creating a program for each input/output device. It was common.

Therefore, as the number of input/output devices increases, it takes more man-hours to create programs, and if a processor is provided for each input/output device, it becomes necessary to program each processor individually.
When replacing a processor, it is necessary to perform individual programming each time before replacing the processor, resulting in a disadvantage that processor replacement becomes difficult.

The present invention aims to eliminate such drawbacks of the conventional technology at once, and includes a plurality of information groups each consisting of a plurality of information and a plurality of processors provided corresponding to each of these information groups. In an information processing system in which each piece of information in a group of information is processed by a corresponding processor, each processor is provided with a plurality of control terminals, and the combination of signals applied to these control terminals is used to control the processing of each processor. This provides an extremely rational positioning method for specifying any one of the pieces of information constituting an information group as specific information.

The details of the present invention will be explained below with reference to figures showing embodiments, and each information group uses a plurality of button-type telephones (hereinafter referred to as telephones) and has a processor such as a microprocessor corresponding to each telephone. This will be explained using a button telephone system as an example.

Figure 1 is a block diagram of the entire system, in which the central office lines SL ₁ to SLm from the telephone office are connected to central office line units SLU ₁ to
They are individually connected to the SLUm, and only the audio signal is separated and given in parallel to _{each terminal unit TEU 1 to} TEUn. Exchange connections are made with the telephones _MFT1 to MFTn.

Further, link circuits _L1 to Lp are provided between the terminal units _TEU1 to TEUn, and exchange connections between the telephones _MFT1 to MFTn are also possible via the aforementioned cross points.

In addition, the terminal unit TEU ₁ ~ TEUn and the telephone
MFT ₁ to MFTn are connected to each other by four-wire lines including voice lines VL ₁ to VLn and data lines DL ₁ to DLn, and terminal units TEU ₁ to TEUn.
Voice signals and FS signals (frequency shift signals) are transmitted through line transformers installed in the telephones MFT ₁ to MFTn.
At the same time, the data signals are sent and received by the terminal unit via the neutral point provided in the line transformer of the voice lines VL ₁ to VLn and the data lines DL ₁ to DLn.
Power is supplied from TEU ₁ to TEUn to telephones MFT ₁ to MFTn.

In addition, the main control unit MCU, central office line units SLU ₁ to SLUm, and terminal units TEU ₁ to
The TEUn is equipped with a processor such as a microprocessor, and the processors of the terminal units TEU ₁ to TEUn decode and hold the outgoing information etc. from the telephones MFT ₁ to MFTn through information processing.
The incoming call information etc. given from the main control unit MCU is decoded and held, and the incoming call information etc. is sent to the telephones MFT ₁ to MFTn according to instructions from the main control unit MCU.
At the same time, transmission information, etc. is sent to the main control unit.
The main control unit MCU checks the outgoing information etc. from the terminal units TEU ₁ to TEUn and the incoming information etc. from the central office line units SLU ₁ to SLUm, and also sets the incoming call control unit OAD. After checking the information, command information based on this is sent to the central office line unit SLU ₁ ~
It is sent to SLUm and terminal units TEU ₁ to TEUn, and controls the conversion operation of the entire system.

On the other hand, the telephones MFT ₁ to MFTn are equipped with the required number of non-locking button switches and indicator lights, and are also equipped with a dial for making a call to a central office line, as well as a telephone circuit and a buzzer or bell for notifying an incoming call, and further, It has a processor and a MODEM (modulator/demodulator), and the processor decodes information generated by button switch operations and dial information from dial operations, controls the MODEM, and sends it out as a data signal, while the terminal unit
Data signals from the MODEMs provided in TEU ₁ to TEUn are received by their own MODEMs, and the received output is decoded by a processor to turn on indicator lights, ring buzzers or bells, etc.

Figure 2 is a block diagram of the station line units _SLU1 to SLUm, in which a signal detection circuit DET using a diode bridge circuit and a photo coupler detects a ringing signal, and the signal is sent to the processor CPU _S as incoming call information. and the processor
The relay HS is operated under the control of the CPU _S , and when its contact h _S is turned on, a loop circuit is formed via the primary winding of the line transformer _{LTS .} relay under the control of
Depending on the operation and recovery of HS, contact _hS is turned on and off,
It is also designed to send out dial pulses.

Figure 3 is a block diagram of the terminal units TEU ₁ to TEUn, and the audio circuit VL from the telephone MFT.
is the station line that passes through the station line units SLU ₁ to SLUm via the line transformer LT _V and the crosspoint CP.
Connected to SL ₁ to SLm or link circuits L ₁ to Lp, but cross point CP is connected to main control unit MCU
The switch is turned on in response to control from the switch, thereby establishing a predetermined exchange connection.

In addition, the data line DL from the telephone MFT is connected to the MODEM/MDM via the line transformer LTd, and under the control of the processor CPUt, the MODEM/MDM sends out the data signal as an FS signal using audio frequency. While the phone MFT
The MODEM/MDM demodulates the FS signal from the FS signal into a data signal and then provides it to the processor CPUt.

Figure 4 shows the main control unit MCU controlling the central office line units SLU ₁ to SLUm and the terminal unit TEU ₁ .
~ Exchange of information with TEUn and the same unit
This is a time chart showing _the information exchange operation between TEU _{1 ~} TEUn and telephones MFT ₁ ~ MFTn. Even if a "check start" is performed by sending a polling signal from the unit MCU, since no information is retained, the polling signal is sent to each unit SLU ₁ in sequence.
~SLUm, TEU ₁ ~TEUn is only sent to the check, and the check ends, and at the end of the check, "TEU transmission start" for the terminal unit TEU ₁ ~TEUn
A command is given from the main control unit MCU, whereby all the terminal units TEU ₁ -TEUn simultaneously send data signals to the telephones MFT ₁ -MFTn.

When this data signal transmission is completed, data signals are transmitted from the telephones MFT ₁ to MFTn all at once, and if there is any information, that information is held in the terminal units TEU ₁ to TEUn. .

When the data signal transmission from the telephones MFT ₁ to MFTn ends with "MFT transmission end", the main control unit MCU performs "check start" again, but "incoming call" from central office line SL ₁ has not been received since the previous check time. If there is, this incoming information is given from the central office line unit SLU ₁ , so the incoming information is immediately sent sequentially to the terminal units TEU ₁ -TEUn and held in each unit TEU ₁ -TEUn.

Next, check the central line unit SLU ₂ , and if there is no information, check the central line unit SLUm in order.
After checking the above, the terminal unit TEU ₁ is checked, and if an outgoing call has been made since the previous check, this is detected at the terminal unit TEU ₁ by the data signal sent from the telephone MFT ₁ in the previous check cycle. Therefore, if this information is "local line origination", information to that effect is given to each central line unit SLU ₁ to SLUm and held, and each terminal unit TEU ₁ to
This information is also given to TEUn, and the terminal unit TEU ₁
The terminal unit sends a response confirming the outgoing call.
For TEU ₂ and later, a command to display that the telephone MFT ₁ is busy is maintained.

Additionally, if telephone MFT ₂ has been making an "extension call" since the last check, this information is given only to each terminal unit TEU ₁ to TEUn, and telephone MFT ₂ also displays the message that it is busy. Directives are retained.

As described above, when the generation of information is confirmed, the main control unit MCU exchanges the necessary information each time, and also sends and receives the necessary information from other terminal units TEU ₃ to TEUn.
is checked, and by "start TEU transmission" again, the terminal units TEU ₁ to TEUn are caused to transmit data signals indicating each piece of information, and the telephones MFT ₁ to MFTn are also caused to transmit data signals again.

As a result, each of the telephones MFT ₁ to MFTn displays an incoming call from the central office line SL ₁ , and at the same time, the telephones MFT ₁ and MFT ₂ display that they are in a calling state. , in other telephones MFT ₃ to MFTn, telephone MFT ₁ ,
A message will appear indicating that MFT ₂ is now busy.

Note that information such as dialing, call termination, etc. from each of the telephones MFT ₁ to MFTn is similarly given to each terminal unit TEU ₁ to TEUn by sending data signals.

Therefore, the main control unit is responsible for sending and receiving information.
Everything is done between the MCU and the central office line units SLU ₁ to SLUm and the terminal units TEU ₁ to TEUn, and then transferred all at once to the telephones MFT ₁ to MFTn.
Since information is sent from telephones MFT ₁ to MFTn at the same time, central office lines SL ₁ to SLm and telephones
Check the information for each MFT ₁ ~ MFTn,
The total time required is significantly reduced compared to sending and receiving information each time.

In other words, there are 4 central office line SL lines and 12 telephone MFT lines.
If a 4-bit line is used for each processor CPU and the clock pulse frequency is 2MHz, the instruction execution speed is approximately 300 steps/1 msec, so information is generated and information is exchanged accordingly. However, the time required for each central office line unit SLU or terminal unit TEU is approximately 1 msec, and the time required from "start of check" to "start of TEU transmission" is approximately 16 msec at maximum, and the data signal transmission speed is 800 bits. /sec, and assuming that one word of the data signal is composed of 11 bits, it will be approximately 14 msec from the "start of TEU transmission" to the end of the data signal to the telephone MFT.
Since the time required for data signal transmission in the opposite direction is the same, the time required for data signal transmission in the opposite direction is the same, so the time required for data signal transmission in the opposite direction is
The maximum time required for
There will be no perceived delay in the operation of the phone's MFT.

FIG. 5 is a flowchart showing the operating status of the main control unit MCU to execute the above information exchange and various controls.
ROM (Read Only) built into CPUm
Control processing is executed based on instructions stored in a RAM (Random Access Memory), while data is similarly stored in a built-in RAM (Random Access Memory).

First, after "initial state setting", the central office line unit "selects SLU and checks/analyzes central office line information", and if "processing required" is YES, "all TEUs are sequentially checked". Select "Send a command based on station line information" and if "Information processing from all SLUs has been completed" is YES, the terminal unit "TEU
are selected one after another to analyze the MFT information, and if ``Is processing necessary?'' is YES, the central office line is
Separation of extension calls, etc., and call restriction unit
Based on the OAD setting information, if it is a "local line call request", after performing (station line reservation) described later, the request will be accepted depending on whether all central lines SL ₁ to SLm are busy. If the answer is YES, it selects the relevant SLU/TEU and sends an operation command, performs the timer processing described later, and then controls the crosspoint CP to initiate the corresponding call. road closure”
The exchange connection is made by .

Also, if it is an “extension call request”, the link circuit
It is determined whether "the request can be accepted" depending on whether all _L1 to Lp are busy, and if the answer is YES, "the corresponding TEU is selected, an operation command is sent out, and timer processing is performed". “Closing the corresponding communication path” is performed.

When the above call status ends, the call is terminated, the corresponding TEU is selected and a recovery command is sent, the corresponding SLU is selected and a recovery command is sent, and the corresponding call path is ``Release'' restores the exchange connection state.

However, if "Request is accepted" is NO, a new call on the "local office line" or "extension line" is not possible due to all calls being busy.
Select TEU and send request rejection command.

When these processes are completed, it is determined whether “information processing from all TEUs has been completed”, and after performing “timer detection processing” described later, “MFT is sent to all TEUs”.
"Sends a command to start sending and receiving information to and from the above-mentioned terminal units TEU ₁ ~ TEUn and telephones MFT ₁ ~ MFTn.
data signals are sent and received between
If the question ``Has information transmission/reception with the MFT been completed?'' becomes YES, one cycle between ``Start check'' in FIG. 4 ends.

In addition, (station line reservation) is to reserve a station line SL station line by pressing the station line selection button on the phone MFT before off-hook of the phone MFT, and in principle, station line SL ₁ to SLm This (station line reservation) is automatically activated if the telephone MFT is not off-hook within a certain period of time such as 5 seconds after pressing the central line selection button. It is scheduled to be lifted in 2020.

In addition, in the case of an "extension call request," the circuit will be restored if there is no response within a predetermined time such as 30 seconds even if the other party is called.In order to regulate these times, the processor CPUm A timer is configured in the internal call center, a timer is configured for a certain period of time depending on (station line reservation), a timer is started for a certain period of time depending on “extension call request”, and a timer for a certain period of time is started depending on “extension call request”
In the "timer processing" of "select TEU and send operation command" and "select relevant TEU and send operation command", each timer is stopped.

Therefore, in the "timer detection process" that follows "whether information processing from all TEUs has been completed", it is checked that these timers have not timed up, and on this premise, the process moves to the next step. It has become something to do.

FIG. 6 is a _flowchart showing the operation of the central office line units SLU ₁ to SLUm.
executes according to the instructions stored in its ROM.

First, after "initial state setting", "detection/processing and storage of station line state" is done, "Selected from MCU" becomes YES, and "Send information to MCU" is YES. , "Sends the stored station line information to the MCU" and ends the information sending if "Has the input completion signal from the MCU been input?" is YES.

Also, if "Send information to MCU" is ON, "input operation command from MCU", and when this is completed, "send command input completion signal to MCU"
Furthermore, it "executes the operation commands from the MCU" to close the loop for the station line SL and send out dial pulses.

FIG. 7 is a flowchart showing the operation of the terminal units TEU ₁ to TEUn, and the processor CPUt
executes instructions stored in its own ROM.

First, after "Initial state setting", if "Selected by MCU" is NO, it is determined "Is there a command to start transmitting/receiving information with MFT?", and if this is YES, "Selected by MFT" is determined. "Send", then "receive and process information from the MFT", and if the content is YES in the judgment of "does it need to be sent to the MCU", it is "stored as MFT information to be sent to the MCU". , "sends an information transmission completion signal with the MFT to the MCU."

Also, if "Selected from MCU" is YES, it is determined whether "MFT information is to be sent to MCU", and if this is YES, it is stored by "Storing as MFT information to be sent to MCU" mentioned above. The content that has been set is sent by "Send stored MFT information to MCU", and when "Input completion signal from MCU was input" becomes YES, sending of information is finished.

On the other hand, “Will the MFT information be sent to the MCU?”
If is NO, “input commands from MCU”,
Upon completion, it "sends a command input completion signal to the MCU" and then "processes the input command", then "stores it as transmission information to the MFT", and then "sends the stored information to the MFT" mentioned above. hold until.

As described above, the main control unit MCU controls the central office line units SLU ₁ to SLUm and the terminal unit TEU _1.
~TEUn information is checked, and based on the results, central office line units SLU ₁ ~ SLUm and terminal units TEU ₁ ~ TEUn are controlled to perform exchange connections _. As switches, button switches corresponding to the office lines SL ₁ to SLm and the telephones MFT ₁ to MFTn are arranged in the same order, and each piece of information constitutes an information group for each telephone MFT ₁ to MFTn. However, among these, those corresponding to each of the telephones MFT ₁ to MFTn include those corresponding to themselves, and these are used for special services such as simultaneous paging.

Therefore, the special service button switches for each telephone MFT ₁ to MFTn are arranged in a different order as a specific order, and each terminal unit TEU ₁
~TEUn's processor CPU must handle this as specific information and make judgments about special services depending on its mounting location.

This can be explained for a typical key telephone as follows. FIG. 9 is a diagram showing the operation surface of the button telephone. In this example, in addition to dial buttons "1" to "9", "*", etc., extension buttons "ST1" to "ST10" corresponding to each button telephone are used. , There are station line buttons "L1" to "L4" that correspond to the station line, and a hold button "HOLD" for hold operation.
An indicator light such as a light emitting diode is provided above each of these button switches, and each dial button and button switch are generally non-locking types, and dialing can be made by operating the dial button. On the other hand, another button telephone is selected by operating the extension buttons "ST1" to "ST10", and the central office line buttons "L1" to "ST10" are selected.
The central office line is selected by operating "L4", and if an exchange connection is made according to these operations, the corresponding indicator lamp lights up to indicate that the line is busy. .

Figure 10 is a block diagram of a typical button telephone, and shows the line terminal TV to which the voice line VL is connected.
A communication circuit TKC including a handset is connected to the line transformer LT ₁ and a switch HS ¹ , and a modem (MODEM) MDM is connected to the line terminal TD to which the data circuit DL is connected via a line transformer LT ₂ . are connected, and the power supplied from the terminal unit via each pair of lines VL and DL is extracted from the neutral point of line transformers LT ₁ and LT ₂ , and stabilized by the power supply section PS. Moreover, it is supplied to this section as a local power supply E.

On the other hand, a processor CPU including memory is provided, which responds to the outputs of the dial button PD, each button switch PB, and the switch HS ² .
Data indicating the operating status is created and stored in memory, and the modem is used when sending and receiving data to and from the terminal unit.
Data signals received via MDM are stored in memory, and the bell BEL and each indicator light PL are driven according to this data.

Some button telephones are equipped with a simultaneous ringing function that calls other button telephones all at once. In this case, it would be fine to provide a separate button for simultaneous calling, but
This not only increases the number of parts and worsens economic efficiency, but also requires additional space to mount the button, which increases the size of the button telephone. In the case of the button telephone shown in Figure 9, there are 10 extension buttons ST1 to ST10.
Each button number ST1 to ST10 corresponds to a telephone number assigned to each button telephone. In other words, in order to call the button telephone with telephone number 1, the user only has to press the extension button ST1.

Now, if 10 key telephones are installed, a given telephone will call something other than itself, so extension buttons ST1 to ST10 will provide extension access to nine key telephones other than the telephone itself. You will be able to do this. However, since there is one extension button, there will be one extra button. For example, if extension buttons ST1 to ST10 are associated with telephone numbers 1 to 10, when the button telephone with telephone number 1 accesses an extension, any of the extension buttons ST2 to ST10 will be used. Therefore, the extension button ST1 is left over on the button telephone with telephone number 1. Similarly, on a button telephone with phone number 2, there will be an extension button ST2, and on a button phone with phone number 10, there will be an extra extension button ST10. Therefore, if this extra extension button is assigned as a button for simultaneous calling, there is no need to provide a special button for simultaneous calling, and the button telephone set itself can be made more versatile.

In this case, if the terminal unit TEU receives data indicating that the button (extension button corresponding to the own telephone number) has been operated, the processor CPUt of that unit will judge this as a simultaneous call. . However, as described above, the buttons operated for simultaneous calling differ depending on the mounting position of each button telephone. In other words, the extension button ST1 on the button telephone with telephone number 1 is for simultaneous ringing, but the extension button ST1 on the button telephone with telephone number 2 is for simultaneous ringing.
It is ST2. Therefore, in order to make a decision on simultaneous paging while operating the processor CPUt of the terminal unit TEU using a common program, a certain amount of effort is required. Therefore, the present application was proposed.

FIG. 8 shows how to specify from which button switch the special service information as specific information (in this example, simultaneous paging) is generated for each terminal unit TEU ₁ to TEUn according to the respective mounting position. FIG. 2 is a circuit diagram of a circuit that specifies specific information for each processor CPUt corresponding to telephones MFT ₁ to MFTn. Each of the terminal units TEU ₁ to TEUn has a processor CPUt therein, and each processor is connected to a plurality of control terminals K ₀ to K ₃ for 4 bits. The position of the button switch that generates special service information is specified in accordance with the combination of signals that set the 4-bit input at the "1" level and the "0" level.

This circuit diagram is an example of 12 telephone lines MFF ₁ to MFTn, and the whole is divided into 3 groups, and each group is grounded to the "0" level by grounding the control terminals K ₀ K ₁ in different combinations. or +5V
is given to the "1" level, and the common terminal is
Ground SN ₁ to _{SN 6} in different combinations,
Or +5V is applied.

Therefore, for example, all 4 bits of the terminal unit TEU ₁ are fixed at the ``0'' level, so the button telephone MFT <sub>1</sub> connected to that unit is an extension button switch with the arrangement order ``0'' (Fig. 8 shows Since it is a digital signal, the first number is 0, but since the extension button is for users, the first number is 1, and as mentioned above, it starts from ST1. ST1 is array rank “0”
It becomes the number button switch. ) is for special services (for simultaneous calls). For this reason, button phones
When the ST1 button is pressed on MFT ₁ and the signal is received by terminal unit TEU ₁ , the signal is recognized as a general paging signal. In addition, a button telephone MFT2 connected to the terminal unit TEU ₂
The button switch with the array order "1" (ST2) is
...For the button telephone MFT ₁₀ , the button switch numbered "9" in the arrangement order is for special services.

In addition, it is also possible to display a special service response to the indicator lights of the telephones MFT ₁ to MFTn, by increasing the number of input terminals K ₀ to _{K 3} according to the number of telephones MFT ₁ to MFTn. A combination of signals may be composed of many bits, and in addition to using the telephones MFT ₁ to MFTn as information generation sources and information display devices, the same effect can be achieved by using various terminal devices.

As is clear from the above description, according to the present invention, each information in each information group can be processed by applying a combination of signals depending on the position of each terminal of a jack or the like on which a processor corresponding to each information group is mounted. When each processor processes each individual piece of information, one of the pieces of information is specified as specific information according to its mounting position with respect to the jack, so the programming for each processor can be the same.
This simplifies processor replacement and simplifies program creation, providing great benefits in various information processing systems.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Figure 1 is a block diagram of the entire system, Figure 2 is a block diagram of the central office line unit, Figure 3 is a block diagram of the terminal unit, and Figure 4 is a block diagram of the terminal unit.
The figure is a time chart showing the information exchange operation between each unit and the telephone set by the main control unit, and FIG. 5 is a flow chart showing the operation in the main control unit to execute the operation of FIG. 4.
Fig. 6 is a flowchart showing the operation of the central office line unit, Fig. 7 is a flowchart showing the operation of the terminal unit, Fig. 8 is a circuit diagram of a circuit that specifies specific information for each processor, and Fig. 9 is a flowchart showing the operation of the terminal unit. FIG. 10 is a block diagram showing the hardware configuration of the button telephone. MCU……Main control unit, SLU ₁ ~ SLUm……
Office line unit, TEU ₁ to TEUn... terminal unit, MFT ₁ to MFTn... telephone (button type telephone: information group), OAD... call regulation unit,
SL ₁ to SLm...Station line, VL ₁ to VLn...Voice line,
DL ₁ ~ DLn……Data line, CPUm, CPU _S ,
CPUt...Processor, _K0 to _K3 ...Control terminals.

Claims (1)

[Claims] 1. A plurality of terminal devices having a plurality of function buttons indicating the own terminal and other terminals, and using the function buttons indicating the own terminal for special service information, and a plurality of terminal devices corresponding to the terminal device. The main control unit controls the plurality of processors in common, and each function button operation information from each terminal device is individually identified by the corresponding processor. In an information processing system in which a main control unit controls the system based on identification results, each processor has a plurality of control terminals to which a combination of signals is fixedly applied in response to function button operation information indicating a corresponding terminal device. What is claimed is: 1. An information processing system characterized in that the information processing system is configured to individually identify each of the function button operation information according to a combination of applied signals.