JPH0817418B2 - Telephone system construction check system - Google Patents

Description

TECHNICAL FIELD The present invention relates to a check system during construction of a telephone device.

(Prior Art) As a telephone device such as a conventional home telephone, a main telephone circuit connected to an office line, a plurality of telephone subunits connected to the main telephone circuit via respective call lines, a plurality of telephone calls such as intercoms It is conceivable to use a device having a slave unit and a control circuit for driving and controlling the main telephone circuit.

In the above-mentioned telephone device, the main telephone circuit is provided with an exchange circuit section capable of performing exchange connection between the office line and the telephone subunit, and exchange connection between the telephone subunits. In addition, the control circuit is a CPU that executes the control program, and an R that stores the control program.
The OM and the CPU have a RAM for storing the drive state of the main telephone circuit which is drive-controlled by the CPU.

Further, in the above telephone device, when the control circuit receives the dial information (destination number) sent by the telephone subunit,
The control circuit exchanges and connects the above-mentioned call cordless handset to the dialed station line, other call cordless handset, etc. to establish an outside line call, an extension line call and the like.

By the way, in the above telephone device, it is necessary to sufficiently check the operating state of each part or the whole of the device at the time of construction.

(Problems to be solved by the invention) However, the above-mentioned check items at the time of construction of the telephone device are abnormalities of CPU, ROM, RAM, etc. in the control circuit, disconnection of the communication line between the main telephone circuit and each call cordless handset, a voice signal. Abnormalities of
There are various problems such as wiring mistakes between the main telephone circuit and each cordless handset, and it is extremely difficult to complete the check.

Further, in checking the above-mentioned telephone device during construction, it is very necessary to check whether the telephone handset transmits proper dial information corresponding to dial operation or whether the control circuit correctly recognizes the dial information. With some difficulties.

Further, when adopting the conventional check method for construction in a telephone device, it is necessary to prepare a special inspection tool such as a tester unique to each check item.

An object of the present invention is to make it possible to execute a check during construction completely and easily without using a special inspection tool.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a main telephone circuit connected to a central office line, and a plurality of telephone cordless handsets connected to the main telephone circuit via communication lines. And a control circuit for driving and controlling the main telephone circuit, which is a check system at the time of construction of a telephone device, wherein the main telephone circuit has a voice generating circuit section, and exchange connection between a station line and a telephone subunit. And a switching circuit unit capable of exchange connection between the call cordless handsets, and exchange connection between the voice cordless handset and the voice generating circuit unit, the control circuit includes a check command input unit, and the control circuit is provided based on the input of the check command. Check the operating status of all the call cordless handsets, and send the voice signal generated by the voice generation circuit to each call cordless handset during off-hook operation of each call cordless handset, and voice when dialing operation of each call cordless handset. Generated by the generation circuit, An answerback signal specific to each telephone handset is sent to the telephone handset operated by dialing.

Further, in the present invention, the control circuit is provided with a check command input section, and based on the input of the check command, the operating state of the control circuit is checked, all the cordless handsets are made to ring, and the off-hook operation of each cordless handset is performed. The voice signal generated by the voice generation circuit unit is transmitted to each call cordless handset, and when the dialing operation of the call cordless handset is transmitted, an answer back signal peculiar to each dial number is transmitted to the call cordless handset, Further, an answerback signal peculiar to the call cordless handset, which is generated by the voice generating circuit unit at the time of dialing operation of each call cordless handset, can be sent to the dialed handset cordless handset.

(Operation) According to the present invention, when the check command is input to the control circuit, the control circuit executes a series of checks.

That is, the control circuit checks the control circuit for abnormalities, checks for disconnection of the communication line by ringing test of all the communication handsets,
A voice signal abnormality check is performed by a voice signal transmission test to each call cordless handset, and a call line wiring error check is executed by an answer back signal transmission test unique to each call cordless handset.

Check by the control circuit When performing the above steps in order, first check the normality of the control circuit as the center of control, and then check that the telephone handset is ringing and ready for reception. , Next, confirm that the voice signal is normally sent to the cordless handset, and each of the plural cordless handset units is wired to the exchange connection unit corresponding to the cordless handset (handset number). Since it is confirmed that there is a waste, an efficient and accurate check flow without waste can be realized.

When the telephone handset dials each dial number, the control circuit sends an answer back signal peculiar to each dial number to the telephone handset. Therefore, if an answer back signal corresponding to the dialed dial number is returned to the call cordless handset, both the dial information sending function of the call cordless handset and the dial information recognition function of the control circuit are in proper operating states. Can be determined.

In addition, since the telephone device performs the above-mentioned checks by using the functional parts that the telephone device has in order to perform normal operations, it is not necessary to separately prepare a special inspection tool such as a tester. .

That is, according to the present invention, the construction check can be performed completely and easily without using a special inspection tool.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a circuit diagram showing a telephone device according to an embodiment of the present invention, and FIGS. 2 to 6 are flow charts corresponding to various operation modes of the same telephone device.

The telephone device 10 includes a main device 11 and a plurality of telephone subunits (five telephone subunits 112 to 512 in this embodiment).
It consists of 12.

The main device 11 has a main telephone circuit 15, a control circuit 16, and a power supply circuit 17.

The main telephone circuit 15 is connected to the central office side by office lines 18A and 18B, and is also connected to the respective telephone slave units 112 to 512 by two call lines 19A and 19B.

The main telephone circuit 15 includes a ringing signal loop detector (incoming call detection circuit) 21, a DTMF oscillator 22, an interrupt signal oscillator 23, a hold signal generator (melody IC) 24, a capacitor c1, a resistor R1, and a relay.
It is provided with r11, r12, a transformer t1, and a capacitor c2. Here, the interrupt signal oscillator 23 and the hold signal generator 24 constitute the voice generating circuit 101 in the present invention.

Further, the main telephone circuit 15 is arranged so that the calling signal oscillators 26 (126 to 52) are provided so as to correspond to the respective telephone slave units 12 (112 to 512).
6), off-hook detector 27 (127 to 527), extension loop detector 28 (128 to 528), PB receiver 29, capacitors c13 to 5
3, c14 ~ 54, relay r13 ~ 53, relay r14 ~ 54, relay r1
5 to 55, batteries b11 to 51, and transformers t12 to 52 are provided.

Further, the main telephone circuit 15 is provided with a crosspoint circuit (exchange circuit section) 31 composed of a crosspoint IC. The cross point circuit 31 includes six horizontal lines “1” to “6” and “A” to
The four vertical lines of "D" are arranged orthogonal to each other. "1" ~
The "5" line is a telephone handset communication circuit, and the "1" to "5" lines are connected to terminals of the transformers t12 to t52 corresponding to the respective telephone handsets 12 on the side opposite to the telephone handsets. The "6" line is a hold circuit,
The hold signal generator 24 is connected to the "6" line.

The "A" line is a station line circuit, and the terminal on the opposite side of the transformer t1 is connected. The "B" line is an extension circuit. The "C" line is a hold circuit. The "D" line is an interrupt circuit, and the interrupt signal oscillator 23 is connected to the "D" line. Crosspoint circuit
Reference numeral 31 turns on / off the cross points (indicated by Δ in FIG. 1) of the horizontal lines and the vertical lines by the control circuit 16 to connect the respective telephone subunits 112 to 512 to the station line, extension line, intercom, hold, and split. Replace and connect to each built-in circuit. The cross point (C, 6) indicated by ▲ in FIG. 1 is always on.

The control circuit 16 is a ring signal loop detector of the main telephone circuit 15.
21, off-hook detector 27 (127 to 527), extension loop detector 28 (128 to 528), PB receiver 29, crosspoint circuit
Receive each transmitted signal from 31. The control circuit 16 controls the crosspoint circuit 31 and the DTMF oscillator based on the above-mentioned transmission signals.
22, the interrupt signal oscillator 23, the hold signal generator 24, the call signal oscillator 26 (126 to 526) and the like are controlled.

Each of the telephone subunits 112 to 512 has a telephone circuit 34 and a power supply circuit 35. The telephone circuit 34 includes a dial circuit portion, a call circuit portion, and a ringer circuit portion (a ringing circuit).

The control circuit 16 is a CPU 16 that executes a control program.
A, ROM 16B that stores the control program, RAM 16C that stores the drive status of the main telephone circuit 15 that is drive-controlled by the CPU 16A
And so on.

Further, the control circuit 16 includes a test switch 102 as a check command input unit for checking at the time of construction, and additionally includes an LED (display device) 103 for displaying an abnormality detected by the above check.

Hereinafter, various operation modes of the telephone device 10 will be described.

(Outgoing line call ... See FIG. 2) When an external telephone call is made by an arbitrary telephone subunit 12, for example, the first telephone subunit 112, when the handset of the first telephone subunit 112 is off-hook, the first telephone subunit The extension loop detector 128 corresponding to the machine 112 sends this off-hook information to the control circuit 16. The control circuit 16 turns on the crosspoint (A, 1) of the crosspoint circuit 31 and turns the relay r11 toward the transformer t1 to form the outside line transmission mode.

Next, when the first telephone subunit 112 dials the destination telephone number, the extension loop detector 128 (when the dial information is a dial pulse signal) corresponding to the first telephone subunit 112 or the PB receiver 92 (the dial information is The push button signal) sends this dial information to the control circuit 16.

When sending a dial pulse signal to the central office line, control circuit
16 transmits a dial pulse to the office lines 18A and 18B by turning on / off the relay r11. At this time, the relay r12 is shunted to prevent pulse noise when dialing from being transmitted to the telephone slave unit 12 side.

When sending a push button signal to the central office line, control circuit
The 16 transmits the dial information to the DTMF oscillator 22, and the tone signal is transmitted from the DTMF oscillator 22 to the office lines 18A and 18B.

When the ringing signal loop detector 21 detects the office line reversal based on the off-hook of the other party's telephone, this detection information is sent to the control circuit 16 and the outside line communication state is established.

(Incoming call from outside line ... See FIG. 3) When a calling signal arrives from the station on the office lines 18A and 18B, the calling signal loop detector 21 detects an incoming call to the outside line, and the detection information is sent to the control circuit 16. The control circuit 16 switches the relays r13 and r23 corresponding to the first telephone slave unit 112 and the second telephone slave unit 212, which are set to the priority order of the outside line calling in this embodiment, to the call signal oscillators 126 and 226, and relays r14, The r24 is switched to the off-hook detectors 127 and 227, and the first telephone subunit 112 and the second telephone subunit 212 are activated.

The control circuit 16 counts the number of times the first telephone slave unit 112 and the second telephone slave unit 212 ring, and the off-hook detectors 127 and 227 send on-hook / off-hook information of the telephone slave units 112 and 212 to the control circuit 16.

When the first telephone subunit 112 or the second telephone subunit 212 responds within 5 times of ringing, the control circuit 16 restores the relays r13, r23 and the relays r14, r24, and the first telephone subunit 112 or the second subunit. If the telephone slave unit 212 does not respond within 5 times of ringing, the control circuit 16 causes the relays r33 to r53 corresponding to other third telephone slave units 312 to fifth telephone slave units 512 to call signal oscillators 326 to 526. Switch the relays r34-r54 to the off-hook detectors 327-527 to switch other telephone slave units 312-5.
12 also rings, and when any of the telephone slave units 112 to 512 responds (detected by the on-hook / off-hook information of each off-hook detector 127-527), relays r13 to r53 and relay r14
~ Restore r54.

Next, the control circuit 16 switches the relay r11 to the transformer t1. For example, if the second telephone subunit 212 is off-hook and is in a response state, the crosspoint (A, 2) of the crosspoint circuit 31 is turned on to connect to the outside line. Establish a call state.

(Extension call ... See FIG. 4) For example, when an extension call is made from the fifth telephone subunit 512, if the handset of the fifth telephone subunit 512 is off-hook,
The extension loop detector 528 corresponding to the fifth telephone subunit 512 sends this off-hook information to the control circuit 16. The control circuit 16 turns on the cross point (A, 5) of the cross point circuit 31 and tilts the relay r11 toward the transformer t1 to form the outside line transmission mode.

Next, when the fifth telephone subunit 512 dials "0", the extension loop detector 528 of the fifth telephone subunit 512 sends this dial information to the control circuit 16. After that, the preset 3
If there is no dial information in the second, the control circuit 16 will relay r1.
Fold 1 to capacitor c1 and turn on / off the crosspoint (D, 5) of crosspoint circuit 31
The extension tone is sent to 12 and the cross point (A,
5) Turn off to create an extension calling mode.

Next, when the fifth telephone subunit 512 dials the called number 1 (1 to 4), the extension loop detector 5 of the fifth telephone subunit 512 is dialed.
28 sends this dial information to the control circuit 16. The control circuit 16 obtains the on-hook / off-hook information of the called-destination telephone subunit 112 by the extension loop detector l28 of the called-destination telephone subunit l12.

If the called telephone slave unit l12 is in the on-hook state, the control circuit 16 switches the relay rl3 corresponding to the called telephone slave unit l12 to the calling signal oscillator l26 and the relay rl4 to the off-hook detector.
Switch to l27, ring the destination telephone handset l12, turn on / off the crosspoint (D, 5) of the crosspoint circuit 31 to send a ringing tone to the fifth telephone handset 512, and call the destination telephone handset When l12 is in the off-hook state, the control circuit 16 causes the crosspoint (D,
5) is turned on / off to send a busy tone to the fifth telephone subunit 512, and at this time, the fifth telephone subunit 512 can dial another called number and repeat the step.

After the execution of the step, the control circuit 16 obtains the on-hook / off-hook information of the off-hook detector l27, and if the called telephone slave unit l12 goes off-hook, the called telephone slave device l12.
When the relays rl3 and rl4 of No. 1 are restored and, for example, the first telephone subunit 112 responds, the crosspoint (D, 5) of the crosspoint circuit 31 is turned off, and the crosspoints (B, 1), (B, 5) ) Is turned on to establish an extension communication state between the first telephone subunit 112 and the fifth telephone subunit 512, and if the called telephone subunit l12 does not answer off-hook, the fifth telephone The handset 512 can dial another callee number and go back to call another phone handset.

(Hold transfer ... See FIG. 5) When an arbitrary telephone slave unit 12, for example, the fifth telephone slave unit 512 is in an outside line call, an extension line call, or a doorphone call state, “0 "When dialing, 5th handset 5
The extension loop detector 528 corresponding to 12 sends this dial information to the control circuit 16, and the control circuit 16 causes the corresponding crosspoint (A, 6) on the hold circuit of the crosspoint circuit 31 to
Any one of (C, 1) to (C, 5) corresponding to the call partner is turned on, the hold melody of the hold signal generator 24 is sent to the hold partner, and the crosspoint circuit 31 is in the ON state. The crosspoint (A, 5) or (B, 5) is turned off (held), the control circuit 16 turns on / off the (D, 5) of the crosspoint circuit 31, and the extension dial tone is output to the fifth telephone slave unit 512. Is sent.

Next, when the fifth telephone slave unit 512 dials the transfer destination number 1 (1 to 4), if, for example, "1" is dialed in the same manner as in the extension call mode of FIG. 4, the cross point circuit 31 crosses. Points (B, 1) and (B, 5) are turned on, and an extension call state is established with the first telephone subunit 112.

After that, when the extension loop detector 528 corresponding to the fifth telephone subunit 512 sends the information that the fifth telephone subunit 512 is on-hook to the control circuit 16, the control circuit 16 causes the crosspoint circuit 31 to operate.
On the hold circuit “6” and “C”, the cross point (A,
6), (C, 1) to (C, 5) are turned off, and the crosspoint (A, 1) or (B, 1) and (B, 1) of this holding party and the first telephone subunit 112 of the transfer destination is 2) to (B, 5) are turned on, and external calls after transfer [(A, 1) is turned on] or extension calls [(B, 1) and (B, 5)
2) to (B, 5) are turned on]. (Transfer) In addition, the hold status of the outside line call, the extension line call, and the intercom call obtained by the "0" dial ring of the fifth telephone slave unit 512 is as follows.
Before transfer, the hold is released by dialing "0" again on the fifth telephone subunit 512. (Releasing hold) (Construction check ... FIG. 6) When the test switch 102 is pressed during construction of the telephone device 10, the control circuit 16 causes the control circuit 16 to check for an abnormality,
Check the disconnection of the communication lines 19A and 19B by ringing test of all the telephone slaves 12, check the abnormalities of voice signals by the test of sending the audio signal to each telephone slave 12, for each dial number dialed in each telephone slave 12. Check the dial information transmission / reception function by the answerback signal transmission test peculiar to each, and check the wiring line 19A, 19B wiring mistakes by the answerback signal transmission test peculiar to each telephone subunit 12 in the following order from the above: Do as follows.

The control circuit 16 checks the operating states of the CPU, ROM, and RAM, and turns on the LED 103 when an abnormality is detected. LED103
May light in different lighting modes for each abnormality of the CPU, ROM, and RAM.

Here, the ROM check is performed as follows, for example. That is, in the CPU, after adding the data at address 0001 to the data at address 0000 (2 digits in hexadecimal) in ROM to obtain the addition result in 2 digits in hexadecimal (the above addition result is converted to the 3rd digit). When a carry occurs, the value of the third digit is added to the first digit of the addition result to arrange the addition result so as to form two hexadecimal digits.) The data of the address (FFFE address) is sequentially added in the same manner as above, and the final addition result is obtained. The CPU determines that the ROM is normal when the final addition result matches the data written in the final address (FFFF address) in advance, and determines that the ROM is abnormal when the results do not match.

The RAM check is performed as follows, for example. That is, the CPU writes the data (10101010) at the address 0000 in the RAM, reads the data at the address 0000, and compares and checks whether the read result matches the data (10101010). The comparison data of the above data (10101010) is performed for each address up to the final address (FFFF address). Next, the data (01010101), (11110000), (00001111)
For each of the above, the same comparison check as in the above data (10101010) is performed at each address from 0000 to the final address. When the write data and the read data match as a result of all the above comparison checks, the CPU
The RAM is normal, and when they do not match, it is determined that the RAM is abnormal.

After completing the above checks, the control circuit 16 will
The relays r13 to 53 corresponding to 12 are switched to the ringing signal oscillator 26, and the relays r14 to 54 are switched to the off-hook detector 27 to ring all the telephone slaves 12 at once. As a result, if all the telephone sub-units 12 ring, it can be checked that there is no disconnection in all the communication lines 19A and 19B.

When the control circuit 16 detects that the telephone slave unit 12 ringing in the above is off-hook by the detection information of the off-hook detector 27, it restores the corresponding relays r13 to 53, r14 to 54, and the cross point circuit 31. The corresponding cross point (C, i) (i = 1 to 5) is turned on, and the hold signal generator 24 sends a hold melody to the off-hook telephone slave unit 12. This makes it possible to check whether or not there is an abnormality in the transmission of the voice signal to each telephone slave unit 12.

Off-hook telephone cordless handset to which the voice signal was transmitted above
When 12 dials any dial number other than “0”,
Extension loop detector 28 or PB corresponding to the telephone slave unit 12
The receiver 29 sends this dial information to the control circuit 16.

Upon receiving the dial information, the control circuit 16 turns off the crosspoint (C, i) that was turned on at the same time, turns on the crosspoint (D, i) at the same time, and outputs an answerback signal peculiar to the dial number. It returns to the telephone slave unit 12. For example, if the dial number is "4", the answerback signal is set to "pippipippip".

As a result, if the answer back signal for each dial number other than "0" is appropriate, then "0" is dialed. When an arbitrary dial number "m" is dialed after "0" dialing, the extension loop detector 28 or PB receiver 29 corresponding to the dialed telephone subunit 12 sends this dial information to the control circuit 16. When the control circuit 16 receives the dial information, the cross point (D,
via i), an answer back signal specific to the cordless handset number of the dialed telephone cordless handset 12 is returned to the dialed telephone cordless handset 12. The answerback signal is, for example, "beep beep" when the dialed slave unit number is "3". As a result, if the answerback signal to all the telephone slaves 12 is appropriate, it is checked that there are no mistakes in the wiring of the communication lines 19A and 19B.

In the above-described embodiment, after checking the dial number on each telephone slave unit 12, the slave unit number of the telephone slave unit 12 is checked by dialing "0". However, instead of this, there is provided a changeover switch for checking the dial number and checking the slave unit number,
Both checks may be switchable.

According to the above embodiment, after confirming the normality of the control circuit 16 as the center of control, it is confirmed that the telephone slave unit 12 is ringing and is in the reception movable state.
Confirm that the audio signal output to 12 is normal,
It is confirmed that each of the plurality of telephone slave units 12 is properly wired to the exchange connection unit in correspondence with the slave unit number, and efficient and accurate check without waste can be realized.

When the telephone slave unit 12 dials an arbitrary dial number, the control circuit 16 sends an answer back signal peculiar to each dial number to the telephone slave unit 12. Therefore, if an answer back signal corresponding to the dialed dial number is returned to the telephone subunit 12, both the dial information sending function of the telephone subunit 12 and the dial information recognition function of the control circuit 16 operate properly. It can be determined that it is in a state.

In addition, since the telephone device 10 performs the above-described checks by using the functional parts that the telephone device 10 has for performing normal operations, it is necessary to separately prepare a special inspector such as a tester. Absent.

In the implementation of the present invention, either the dial number of each telephone slave unit 12 or the slave unit number may be checked.

Further, in the present invention, the cordless handset number of each telephone cordless handset 12 can be checked for both wiring check and dial number check.

(Effects of the Invention) As described above, according to the present invention, it is possible to perform a complete and construction check without using a special inspector.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing a telephone device according to an embodiment of the present invention, FIG. 2 is a flow diagram corresponding to an outside line transmission mode, and FIG.
Fig. 4 is a flow chart corresponding to the outside line incoming call mode, Fig. 4 is a flow chart corresponding to the extension line call mode, Fig. 5 is a flow chart corresponding to the hold transfer mode, and Fig. 6 is a flow chart corresponding to the construction check mode. Is. 10; Telephone device, 11; Main device, 12 (112 to 512); Telephone handset, 15;
Main telephone circuit, 16; control circuit, 17; power supply circuit, 18A, 18B; office line, 19
A, 19B; Call line, 21; Ring signal loop detector, 22; DTMF oscillator, 23; Interrupt signal oscillator, 24; Hold signal generator (melody I
C), 26 (126 to 526); Ring signal oscillator, 27 (127 to 52)
7); Off-hook detector, 28 (128 to 528); Extension loop detector, 29; PB receiver, 31; Crosspoint circuit (exchange circuit part), 34; Telephone circuit, 35; Power supply circuit, 101; Voice generation circuit Section,
102; Test switch (check command input section).

Claims (2)

[Claims] 1. A main telephone circuit connected to an office line, a plurality of telephone cordless handsets respectively connected to the main telephone circuit via a telephone line, and a control circuit for driving and controlling the main telephone circuit. This is a check system during construction of a telephone device, in which the main telephone circuit is equipped with a voice generation circuit section, and exchange connection between the office line and the cordless handset, exchange connection between the cordless handset and mutual communication, and voice generation. Equipped with an exchange circuit unit that can be exchange-connected with the circuit unit, the control circuit is provided with a check command input unit, and based on the input of the check command, the operating state of the control circuit is checked, and all telephone handsets ring and each call An answerback signal that is unique to each handset and is sent to each call handset when the off-hook operation of the handset is sent to each call handset. Dialing operation Construction time checking system of the telephone apparatus for delivering to have been calls handset. 2. The telephone system construction check system according to claim 1, wherein the control circuit has a check command input section, and based on the input of the check command, the operating state of the control circuit is checked and all calls are made. For each dialed number, sounding the cordless handset, sending the voice signal generated by the voice generation circuit unit when the off-hook operation of each call cordless handset is sent to each call cordless handset, and being emitted by the voice generation circuit unit when dialing the call cordless handset. A unique answer-back signal is sent to the call cordless handset, and the voice generation circuit section emits a dialing operation of each call cordless handset.
A check system at the time of construction of a telephone device for sending an answerback signal peculiar to the telephone handset to the telephone handset operated by dialing.