JP2009171346A - Intercom system, control device and method for confirming operation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve operation check of a slave intercom 10 including a slave receiver 13. <P>SOLUTION: In an intercom system 1, a device control part 46 switches a slave intercom 10 to an off-hook state and transmits a test sound signal to the slave intercom 10, a slave set control part 17 amplifies the test sound signal to a level higher than that of speaking by a slave amplifier 16 and outputs the amplified signal to a slave loudspeaker 18 through a wire 12, the slave loudspeaker 18 discharges a test sound by a volume larger than that of speaking, a slave microphone 19 collects the test sound discharged from the slave loudspeaker 18 and returns the return test sound signal to a control device 40, and the device control part 46 determines whether the slave intercom 10 is normal or not based on the return test sound signal. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an intercom system, a control device, and an operation confirmation method capable of confirming the operation of an interphone.

  The intercom system is usually composed of a slave intercom and a master interphone connected to the slave interphone through a telephone line. For example, the slave interphone is installed in each of a plurality of private rooms in a bank safe deposit box, The master interphone is installed on a desk or the like of an administrator who manages the safe deposit box located at a location remote from the safe deposit box. In the interphone system, when the user of the safety deposit box picks up the handset placed on the placement unit of the main unit of the slave intercom, the calling sound of the master intercom is emitted and the administrator By taking the handset placed on the placement part of the main body part of the interphone, the user of the slave intercom and the administrator of the master interphone can talk.

  The interphone system used in such a safe deposit box needs to check the operation of each device such as the main unit interphone and the sub unit interphone for failure every certain period. It is necessary to place an operator at each installation location and actually perform a call test to check the operation. However, for example, when the number of slave unit interphones is large or when the slave unit interphones are installed at a location away from the master unit interphone, it is difficult for the operator to perform a call test, Will be required. Therefore, even when the number of handset interphones is large or when the handset interphone is installed at a location away from the base unit intercom, the burden on the operator is reduced and without much human intervention. An intercom system that can check the intercom operation is desired.

  For example, an interphone system such as Patent Document 1 transmits a test signal from a master interphone to each slave interphone, detects a test signal transmitted from each slave interphone, and returns a test signal to the master interphone. Thus, it is possible to check the connection between the master interphone and the plurality of slave intercoms.

  However, in an interphone system such as that disclosed in Patent Document 1, operation check is performed for failures such as the presence / absence of a failure of the main unit of the slave unit interphone and a disconnection of a communication line connecting the master unit interphone and the slave unit interphone. However, it is not possible to confirm the operation of the interphone system including the receiver, such as confirmation of the operation of the receiver, especially the presence or absence of a failure of the speaker or microphone of the receiver, the presence or absence of a broken wire connecting the receiver and the main body.

JP 2007-143078 A

  The present invention has been proposed in view of such conventional circumstances, and an object thereof is to provide an interphone system, a control device, and an operation confirmation method capable of confirming the operation of an interphone including a handset.

  In order to achieve the above-described object, an interphone system according to the present invention includes a master interphone, at least one slave interphone connected to the master interphone, the master interphone, and the at least one slave. And a control device that is connected between the interphones and that confirms the operation of the slave interphone.

  The control device includes a switching signal transmitting means for transmitting a switching signal for switching the slave unit interphone to the on-hook or off-hook state to the slave unit interphone, and a test voice signal to the slave unit interphone switched from the on-hook state to the off-hook state by the switching signal transmitting unit. A test audio signal transmitting means for transmitting the determination signal, a determination means for determining whether the slave interphone is normal based on a return test audio signal transmitted from the slave intercom, and a determination result determined by the determination means as the master unit A slave unit interphone having a slave unit body connected to the control device and a slave receiver connected by wire to the slave unit. The main unit switches the handset interphone to the on-hook or off-hook state according to the switching signal transmitted from the switching signal transmitting means. A handset switching means for switching, a handset amplifying means for amplifying the test voice signal transmitted from the test voice signal transmitting means to a higher level than during a call, and outputting the amplified test voice signal to the handset receiver via a wire; The handset receiver collects and collects the handset speaker that emits the test sound according to the test sound signal output from the handset amplifier and the test sound emitted from the handset speaker. And a slave unit microphone that transmits a return test voice signal corresponding to the audible test voice to the determination unit, and the master unit interphone includes a notification unit that notifies the determination result transmitted from the determination result transmission unit.

  In the interphone system according to the present invention, the switching signal transmission means of the control device transmits a switching signal for switching the slave unit interphone from the on-hook state to the off-hook state to the slave unit switching unit of at least one slave unit interphone, The machine switching means switches the slave intercom from the on-hook state to the off-hook state in response to the switching signal sent from the switching signal sending means, and the test voice signal sending means of the control device sends the test voice signal to the slave amplifier amplifying means. The slave unit amplifying unit amplifies the test voice signal transmitted from the test voice signal transmitting unit to a level higher than that during a call, and outputs the amplified test voice signal to the slave unit speaker via a wire. However, the test sound corresponding to the test sound signal output from the handset amplifier is emitted, and the handset microphone is emitted from the handset speaker. The test voice is collected, a return test voice signal corresponding to the collected test voice is transmitted to the determination means, and the determination means of the control device determines whether the slave unit is based on the return test voice signal transmitted from the slave microphone. It is determined whether the intercom is normal, the determination result transmission unit of the control device transmits the determination result determined by the determination unit to the notification unit, and the notification unit notifies the determination result transmitted from the determination result transmission unit. .

  The present invention also provides a method for confirming the operation of an interphone system as described above and a control device used in the interphone system.

  According to the present invention, the switching signal transmission means of the control device transmits a switching signal for switching the slave unit interphone from the on-hook state to the off-hook state to the slave unit switching unit of at least one slave unit interphone, The slave unit interphone is switched from the on-hook state to the off-hook state according to the switching signal transmitted from the switching signal transmitting unit, and the test voice signal transmitting unit of the control device transmits the test voice signal to the slave unit amplifying unit. The amplifying unit amplifies the test audio signal transmitted from the test audio signal transmitting unit to a higher level than during a call, and outputs the amplified test audio signal to the child device speaker via a wire. The test voice corresponding to the test voice signal output from the amplification means was emitted, and the handset microphone picked up the test voice emitted from the handset speaker and collected the sound. A return test audio signal corresponding to the test voice is transmitted to the determination unit, and the determination unit of the control device determines whether the slave unit interphone is normal based on the return test voice signal transmitted from the slave unit microphone Including the handset handset, such as confirmation of handset handset operation, especially handset handset speaker handset speaker or handset microphone failure, whether the handset handset is connected to the handset main unit or not. You can check the operation of the slave intercom.

  Hereinafter, an intercom system 1 to which the present invention is applied will be described with reference to the drawings. As shown in FIG. 1, an interphone system 1 to which the present invention is applied includes, for example, a plurality of slave unit interphones 10 installed in a plurality of private rooms in a bank safety deposit box, and the slave unit interphones 10 and a telephone line 2. Is connected between the master interphone 20 installed on the desk or the like of the manager who manages the safe deposit box at a location remote from the safe deposit box, and between the slave interphone 10 and the master interphone 20. And a control device 40 for confirming the operation of the slave interphone 10 and the master interphone 20. The control device 40 is installed on the same floor as the manager in the bank, for example.

  As shown in FIG. 2, the slave unit interphone 10 includes a slave unit body 11 connected to the control device 40 via the telephone line 2, and a cord 12 such as the slave unit 11 and the telephone line 2. And a connected handset 13.

  The slave unit main body 11 has a slave unit call line interface (hereinafter also referred to as a slave unit call line I / F) 14 connected to the control device 40 via the call line 2 and the slave unit interphone 10 in an on-hook or off-hook state. A handset switching unit 15 for switching to the handset, a handset amplifier 16 for amplifying various audio signals transmitted from the handset phone call line I / F 14 and various voice signals transmitted from the handset phone call line I / F 14, and a handset interphone 10 And a slave unit control unit 17 for controlling the whole. In addition, when the operation check of the handset interphone 10 is performed, the handset receiver 13 emits a tester sound for emitting the test sound for confirming the operation of the handset interphone 10 and the sound emitted from the handset speaker 18. And a handset microphone 19 that collects the test voice.

  The slave unit call line I / F 14 is a modular jack into which a modular plug provided in the call line 2 that connects, for example, the slave unit interphone 10 and the control device 40 is inserted, and receives various signals from the control unit 40. Various signals are transmitted to the control device 40.

  When the handset switching unit 15 receives a switching signal for switching the handset interphone 10 from the on-hook state to the off-hook state via the handset communication line I / F 14 from the control device 40, the handset switching unit 15 switches the handset interphone 10 according to the switching signal. Switch from on-hook to off-hook state. Further, when receiving the test voice signal from the control device 40 via the slave unit communication line I / F 14, the slave unit switching unit 15 outputs the test voice signal to the slave unit amplifier 16 and returns the test voice signal from the slave unit amplifier 16. When a voice signal is input, this return test voice signal is output to the slave unit call line I / F 14. Further, the handset switching unit 15 outputs the test voice signal to the handset amplifier 16, outputs the return test voice signal to the handset communication line I / F 14, and then changes the handset interphone 10 from the off-hook state to the on-hook state. Switch.

  When the test voice signal is input from the handset switching unit 15, the handset amplifier 16 amplifies the test voice signal to a higher level than during a call, and outputs the amplified test voice signal to the handset speaker 18 via the wire 12. Further, when the return test audio signal is input from the slave unit microphone 19 via the wire 12, the slave unit amplifier 16 amplifies the return test audio signal, and sends the amplified return test audio signal to the slave unit switching unit 15. Output.

  The handset controller 17 controls the entire operation of the handset interphone 10, and temporarily stores a control program from a ROM (Read Only Memory) in which a control program for controlling the entire operation (not shown) is stored. (Random Access Memory), and a CPU (Central Processing Unit) performs predetermined arithmetic processing according to a control program to control the overall operation of the slave interphone 10.

  When the operation check of the handset interphone 10 is performed, the handset speaker 18 used in the handset receiver 13 releases the test sound corresponding to the test sound signal when the test sound signal is input from the handset amplifier 16. Sound.

  The handset microphone 19 collects the test sound signal emitted from the handset speaker 18 when the operation check of the handset interphone 10 is performed, and sends the return test sound signal corresponding to the collected test sound to the wired 12. Is output to the handset amplifier 16.

  As shown in FIG. 3, the base unit interphone 20 includes a base unit main body 21 connected to the control device 40 via the telephone line 2, and the base unit main body 21 and the wired line 22 such as the telephone line 2. And a base phone receiver 23 to be connected.

  On the base unit main body 21, a base unit call line interface (hereinafter also referred to as a base unit call line I / F) 24 connected to the control device 40 via the call line 2 and a base unit interphone 20 are on-hook or A base unit switching unit 25 for switching to the off-hook state, various voice signals received from the control unit 40 via the base unit call line I / F 24 and various voice signals transmitted from the base unit call line I / F 24 to the control unit 40 are amplified. The base unit amplifier 26, the base unit operation unit 27 for performing an operation to start the operation check of the handset interphone 10 and the base unit interphone 20, and the operation check result of each handset interphone 10 and the base unit interphone 20 are notified. A master unit notification unit 28, a master unit call speaker 29 that emits a calling voice, and a master unit control unit 30 that controls the master unit intercom 20 as a whole. In addition, when the operation check of the main unit interphone 20 is performed, the main unit receiver 23 emits a test sound for performing the operation check of the main unit interphone 20 and the sound emitted from the main unit speaker 31. And a master microphone 32 that collects the test voice and the call voice emitted from the master call speaker 29.

  The base unit call line I / F 24 is a modular jack into which a modular plug provided in the call line 2 that connects the base unit interphone 20 and the control unit 40 is inserted, for example, and receives various signals from the control unit 40. Various signals are transmitted to the control device 40.

  When base unit switching unit 25 receives a switching signal for switching base unit interphone 20 from the on-hook state to the off-hook state via control unit 40 through base unit call line I / F 24, base unit intercom 20 is switched according to this switching signal. Switch from on-hook to off-hook state. Further, when receiving the test voice signal from the control device 40 via the base unit communication line I / F 24, the base unit switching unit 25 outputs the test voice signal to the base unit amplifier 26 and returns the test voice signal from the base unit amplifier 26. When the voice signal and the calling voice signal are input, the return test voice signal and the calling voice signal are transmitted to the control device 40 via the parent machine call line I / F 24. Further, the base unit switching unit 25 outputs the test voice signal to the base unit amplifier 26 and outputs the return test voice signal and the calling voice signal to the base unit call line I / F 24, and then the base unit interphone 20 is in an off-hook state. Switch from to on-hook state.

  When the test audio signal is input from the parent device switching unit 25, the main device amplifier 26 amplifies the test audio signal to a higher level than during a call, and outputs the amplified test audio signal to the main device speaker 31 via the wire 22. Further, when the return test voice signal and the call voice signal are input from the master microphone 32 via the wire 22, the master amplifier 26 amplifies the return test voice signal and the call voice signal, and amplifies the return test voice. The signal and the return call voice signal are output to the main unit switching unit 25.

  The base unit operation unit 27 is, for example, a plurality of push buttons provided on the top surface of the base unit main body 21, and an operation check start button for starting the operation check of the handset interphone 10 and the base unit interphone 20 by the administrator. When pressed, the base unit control unit 30 transmits an operation confirmation start signal for starting operation confirmation to the control device 40. Thereby, the operation check of the slave unit interphone 10 and the master unit interphone 20 is started. In addition, the base unit operation unit 27 is provided with a time setting button for setting the time of a timer unit 45 described later.

  The base unit notification unit 28 is a light emitting element such as a plurality of LEDs (Light Emitting Diodes) provided on the top surface of the base unit main body 21. For example, the base unit notification unit 28 includes an operation confirmation determination result of the handset receiver 13 of the handset interphone 10. A plurality of operation confirmation determination results of the main unit handset 23 of the main unit interphone 20 and an operation confirmation determination result of the main unit calling speaker 29 are provided. In addition, the base unit notification unit 28 is provided with a combination of a plurality of LEDs of different colors for each operation check, and when there is no failure or error, etc., and when an abnormality or failure is found. The LED of a different color lights up depending on the state. Specifically, in the master unit notification unit 28, a green LED is lit when it is in a normal state with no failure or error, and a red LED is lit when it is in an abnormal state where a failure or error is found. The That is, the parent device notification unit 28 includes at least an LED corresponding to the normal operation confirmation determination result of the child device handset 13 of the child device interphone 10, an LED corresponding to the abnormal operation confirmation determination result, and the parent device interphone 20. LED corresponding to the normal operation confirmation determination result of the parent device handset 23, LED corresponding to the abnormal operation confirmation determination result, and normal operation confirmation determination result of the parent device calling speaker 29 of the parent intercom 20 An LED and an LED corresponding to an abnormal operation confirmation determination result are provided. Thereby, the administrator can confirm at a glance which interphone is in a normal state and which interphone is in an abnormal state by looking at the parent device notification unit 28.

  In addition, LED is not limited to using green and red LED, You may use combining another color. In addition, the LED may be configured to be able to confirm a normal or abnormal state by turning on / off one color LED for each operation confirmation in order to reduce the number of parts. Furthermore, you may use LED which can be discolored into different colors, such as green and red. In addition, the main unit notification unit 28 is not limited to notifying the operation confirmation determination result of each operation confirmation using the LED, but for example, an LCD (Liquid Crystal Display), an organic EL (Electro Luminescence), or the like. It may be used to notify the operation confirmation determination result of each operation confirmation by characters. Furthermore, the main unit main body 21 may have a touch panel that serves as both the main unit operation unit 27 and the main unit notification unit 28. Further, the base unit notification unit 28 may warn of an abnormal state with an audible sound.

  When the operation check of the main unit intercom 20 is performed, the main unit call speaker 29 receives a call test signal from the control device 40 via the main unit call line I / F 24 and outputs a call voice according to the call test signal. Sounds out.

  The base unit control unit 30 controls the entire operation of the base unit interphone 20, and temporarily loads a control program from a ROM storing a control program for controlling the entire operation (not shown) into the RAM, and the CPU Then, predetermined arithmetic processing according to the control program is performed to control the overall operation of the master intercom 20.

  When the operation of the main unit interphone 20 is confirmed, the main unit speaker 31 used in the main unit receiver 23 releases the test audio corresponding to the test audio signal when the test audio signal is input from the main unit amplifier 26. Sound.

  When the operation of the main unit interphone 20 is confirmed, the main unit microphone 32 collects the test sound emitted from the main unit speaker 31 and sends a return test audio signal corresponding to the collected test sound to the wired 22. To the main unit amplifier 26. When the operation of the master intercom 20 is confirmed, the master microphone 32 collects the call voice emitted from the master call speaker 29 and wire the call voice signal corresponding to the collected call voice. 22 to the main unit amplifier 26.

  As shown in FIG. 4, the control device 40 includes a power supply unit 41 that supplies driving current to each slave unit interphone 10 and the master unit interphone 20 via the telephone line 2, each slave unit interphone 10, and the master unit interphone 20. Judgment is made whether the device test line interface (hereinafter also referred to as device call line I / F) 42 to be connected and the return test voice signal and the ringing voice signal returned via the device call line I / F 42 are normal. A storage unit 43 in which data is stored, a communication interface (hereinafter also referred to as a communication I / F) 44 connected to the external management device 50 via a network, and a timer unit 45 that measures a predetermined time. And a device control unit 46 that controls the entire control device 40.

  The power supply unit 41 includes, for example, a switching regulator, and an alternating current supplied via a power supply terminal such as an external power outlet such as a commercial power supply is supplied to each slave unit interphone 10 and the master unit interphone 20 via the communication line 2. Supply.

  The device communication line I / F 42 is provided in, for example, a modular plug provided in the communication line 2 that connects each slave unit interphone 10 and the control device 40 and the communication line 2 that connects the base unit interphone 20 and the control device 40. The modular jack into which the modular plug is inserted transmits various signals to each slave unit interphone 10 and the master unit interphone 20 and receives various signals from each slave unit interphone 10 and the master unit interphone 20.

  The storage unit 43 is configured by a nonvolatile memory such as an EEPROM (Electrically Erasable and Programmable Read Only Memory), for example, and stores data for determining whether the handset interphone 10 and the base unit interphone 20 are normal. ing. The storage unit 43 includes the slave unit interphone 10 and the master unit interphone based on the return test voice signal returned from the slave unit interphone 10 and the return test voice signal and the calling voice signal returned from the master unit interphone 20 by the device control unit 46. When determining whether 20 is normal, these data are read out.

  The communication I / F 44 is a modular in which a modular plug provided in a 10BASE-T cable or a 100BASE-TX cable for connecting the control device 40 and the external management device 50 via a network such as Ethernet (registered trademark) is inserted. It is a jack, accesses the external management device 50, and transmits the operation confirmation determination result input from the device control unit 46 to the external management device 50.

  The timer unit 45 measures a time and a predetermined time, and starts an operation check start signal for checking the operation of the slave unit interphone 10 and the master unit interphone 20 at a predetermined time set by the manager operating the base unit operation unit 27. Is output to the apparatus control unit 46. Thereby, the operation of the handset interphone 10 and the base unit interphone 20 is automatically confirmed at a predetermined time set by the administrator operating the base unit operation unit 27.

  The device control unit 46 controls the overall operation of the control device 40. The control program is temporarily read into a RAM from a ROM storing a control program for controlling the overall operation (not shown) and controlled by the CPU. Predetermined arithmetic processing is performed according to the program, and the overall operation of the control device 40 is controlled.

  Here, the external management device 50 connected to the control device 40 via the communication I / F 44 is an information processing device or the like of an external administrator who manages the slave unit interphone 10, the master unit interphone 20, and the control device 40. By managing the operation confirmation determination result transmitted from the control device 40 via the network, for example, the slave unit interphone 10, the master unit interphone 20, and the slave unit interphone 10, the master unit interphone 20 even at a remote location away from the control unit 40. In addition, the control device 40 can be managed.

  Next, an operation confirmation method in which the control device 40 confirms the operations of the slave interphone 10 and the master interphone 20 will be described with reference to the flowcharts shown in FIGS. 5 and 6.

  In step S1, the device control unit 46 first receives an operation confirmation start signal for starting operation confirmation of the slave interphone 10 and the master interphone 20 from the timer unit 45 at a predetermined time set by the administrator. The operation check of the slave intercom 10 is started. Alternatively, the device control unit 46 presses the operation confirmation start button of the parent device operation unit 27 for starting the operation confirmation of the child device interphone 10 and the parent device interphone 20 by the administrator, and the device communication line I / O is transmitted from the parent device interphone 20. When the operation confirmation start signal for starting the operation confirmation for starting the operation confirmation of the slave unit interphone 10 and the master unit interphone 20 is received via F42, the operation confirmation of the slave unit interphone 10 is started.

  In step S <b> 2, the device control unit 46 sequentially transmits a switching signal for switching the handset interphone 10 from the on-hook state to the off-hook state to the handset interphone 10 via the device communication line I / F 42. When the handset controller 17 receives a switching signal for switching the handset interphone 10 from the on-hook state to the off-hook state from the control device 40 via the handset communication line I / F 14, the handset switching unit 15 causes the handset switching unit 15 to perform the switching. In response to the signal, handset intercom 10 is switched from the on-hook state to the off-hook state.

  In step S <b> 3, the device control unit 46 transmits a test audio signal for confirming the operation of the handset interphone 10 to the handset interphone 10 via the device communication line I / F 42.

  In step S4, when receiving the test voice signal for confirming the operation of the slave unit interphone 10 via the slave unit call line I / F 14, the slave unit control unit 17 receives the test voice signal by the slave unit amplifier 16. It amplifies to a higher level than during a call and outputs the amplified test audio signal to the handset speaker 18 via the wire 12. And the subunit | mobile_unit control part 17 emits the test audio | voice according to this test audio | voice signal from the subunit | mobile_unit speaker 18. FIG.

  In step S5, the handset controller 17 collects the test sound signal emitted from the handset speaker 18 by the handset microphone 19, and sends the return test sound signal corresponding to the collected test sound to the wired terminal 12. To the child device amplifier 16.

  In step S6, the handset controller 17 amplifies the return test voice signal by the handset amplifier 16, and controls the amplified return test voice signal via the handset switching section 15 and the handset communication line I / F14. While transmitting to the apparatus 40, the subunit | mobile_unit intercom 10 is switched from an off-hook state to an on-hook state.

  In step S7, when the return test voice signal is returned from the slave unit interphone 10 via the unit communication line I / F 42, the device control unit 46 is normal based on the return test voice signal. Determine whether. Specifically, the device control unit 46 reads data for determining whether or not the slave unit interphone 10 is normal from the storage unit 43, and when the frequency of the data and the return test audio signal match, When it is determined that the intercom 10 is in a normal state with no failure or error, and the frequency of the data and the return test audio signal do not match, or the return test audio signal is not returned even after a predetermined time Therefore, it is determined that the slave intercom 10 is in an abnormal state such as a failure or an error. Alternatively, when the level of the return test audio signal is equal to or higher than the predetermined level, the apparatus control unit 46 determines that the slave unit interphone 10 is in a normal state without any failure or error, and returns the level of the return test audio signal. Is less than a predetermined level, or when the return test audio signal is not returned even after a predetermined time, it is determined that the handset interphone 10 is in an abnormal state such as failure or error.

  When the device control unit 46 determines that the handset interphone 10 is normal, in step S8, the device control unit 46 obtains an operation confirmation determination result of the handset receiver 13 of the handset interphone 10 via the device communication line I / F 42. While transmitting to the main | base station notification part 28, the operation confirmation determination result of the subunit | mobile_unit handset 13 of this subunit | mobile_unit intercom 10 is transmitted to the external management apparatus 50 via communication I / F44. When receiving the operation confirmation determination result of the handset 13 of the handset interphone 10 from the control device 40 via the base unit call line I / F 24, the base unit control unit 30 receives the master confirmation unit according to the operation confirmation determination result. The green LED of the machine notification unit 28 is turned on.

  When the device control unit 46 determines that there is an abnormality in the handset interphone 10, in step S9, the operation check determination result of the handset receiver 13 of the handset interphone 10 is sent via the device communication line I / F 42. While transmitting to the main | base station notification part 28, the operation confirmation determination result of the subunit | mobile_unit handset 13 of this subunit | mobile_unit intercom 10 is transmitted to the external management apparatus 50 via communication I / F44. When receiving the operation confirmation determination result of the handset 13 of the handset interphone 10 from the control device 40 via the base unit call line I / F 24, the base unit control unit 30 receives the master confirmation unit according to the operation confirmation determination result. The red LED of the machine notification unit 28 is turned on.

  In step S10, the apparatus control unit 46 determines whether or not operation confirmation has been performed for all the child interphones 10, and when not performed, other child elements that have not yet been confirmed for operation in steps S2 to S9. This is performed on the machine interphone 10 and the operation of all the child machine interphones 10 is checked. As a result, the device control unit 46 determines whether or not the handset speaker 18 and handset microphone 19 of the handset receiver 13 are faulty, disconnection of the wire 12 that connects the handset main body 11 and the handset handset 13, or connection abnormality. In addition, it is possible to confirm whether or not there is a failure in the slave unit body 11, disconnection of the communication line 2 connecting the slave unit interphone 10 and the control device 40, and whether or not there is a connection abnormality. The operation of the handset interphone 10 including the handset receiver 13 can be confirmed.

  When the operation check of the slave intercom 10 is completed, the device control unit 46 starts the operation check of the master interphone 20 in step S11. Specifically, the operations from Step 2 to Step 9 are performed.

  That is, device control unit 46 transmits to base unit interphone 20 a switching signal for switching base unit interphone 20 from the on-hook state to the off-hook state via device communication line I / F 42. When receiving a switching signal for switching the base intercom 20 from the on-hook state to the off-hook state via the base unit communication line I / F 24 from the control device 40, the base unit control unit 30 causes the base unit switching unit 25 to perform this switching. In response to the signal, the master intercom 20 is switched from the on-hook state to the off-hook state.

  The device control unit 46 transmits a test audio signal for checking the operation of the base intercom 20 to the base intercom 20 via the device communication line I / F 42.

  When receiving the test voice signal for confirming the operation of the base unit receiver 23 of the base unit interphone 20 from the control device 40 via the base unit communication line I / F 24, the base unit control unit 30 causes the base unit amplifier 26 to The test audio signal is amplified to a higher level than during a call, and the amplified test audio signal is output to the parent speaker 31 via the wire 22. Then, base unit control unit 30 emits a test sound corresponding to the test sound signal from base unit speaker 31.

  The base unit control unit 30 collects the test sound emitted from the base unit speaker 31 by the base unit microphone 32 and returns a return test sound signal corresponding to the collected test sound via the wire 22 to the base unit amplifier. 26.

  The base unit control unit 30 amplifies the return test voice signal by the base unit amplifier 26 and transmits the amplified return test voice signal to the control device 40 via the base unit switching unit 25 and the base unit call line I / F 24. To do.

  When the return test audio signal is returned from the master intercom 20 via the device communication line I / F 42, the device control unit 46 determines whether the master interphone 20 is normal based on the return test audio signal. . Specifically, the device control unit 46 reads data for determining whether or not the master intercom 20 is normal from the storage unit 43, and when the frequency of the data matches the frequency of the return test audio signal, When it is determined that the intercom 20 is in a normal state with no failure or error, and the frequency of the data and the return test audio signal do not match, or the return test audio signal is not returned even after a predetermined time Then, it is determined that the master intercom 20 is in an abnormal state such as failure or error. Alternatively, when the level of the return test audio signal is equal to or higher than the predetermined level, the apparatus control unit 46 determines that the master interphone 20 is in a normal state without any failure or error, and returns the level of the return test audio signal. Is less than a predetermined level, or when the return test audio signal is not returned even after a predetermined time, it is determined that the master intercom 20 is in an abnormal state such as a failure or an error.

  Then, when the device control unit 46 determines that the base unit interphone 20 is normal, the base unit notification unit transmits the operation confirmation determination result of the base unit receiver 23 of the base unit interphone 20 via the device communication line I / F 42. 28, and the operation confirmation determination result of the parent handset 23 of the parent interphone 20 is transmitted to the external management device 50 via the communication I / F 44. When receiving the operation confirmation determination result of the parent handset 23 of the parent interphone 20 from the control device 40 via the parent device communication line I / F 24, the parent device control unit 30 receives the parent device according to the operation confirmation determination result. The green LED of the machine notification unit 28 is turned on.

  Further, when the device control unit 46 determines that there is an abnormality in the base unit interphone 20, the operation check determination result of the base unit 23 of the base unit interphone 20 is transmitted to the base unit notification unit via the device communication line I / F 42. 28, and the operation confirmation determination result of the parent handset 23 of the parent interphone 20 is transmitted to the external management device 50 via the communication I / F 44. When receiving the operation confirmation determination result of the parent handset 23 of the parent interphone 20 from the control device 40 via the parent device communication line I / F 24, the parent device control unit 30 receives the parent device according to the operation confirmation determination result. The red LED of the machine notification unit 28 is turned on.

  As a result, the device control unit 46 determines whether or not the parent speaker 31 and the parent microphone 32 of the parent device receiver 23 are broken, disconnection of the wire 22 connecting the parent device main body 21 and the parent device receiver 23, or connection abnormality. In addition, it is possible to confirm whether or not there is a failure in the main unit body 21, disconnection of the communication line 2 connecting the main unit interphone 20 and the control device 40, and whether or not there is a connection abnormality. Thus, the operation of the master intercom 20 including the master receiver 23 can be confirmed.

  When the operation check of the master handset 23 of the master interphone 20 is completed, the device control unit 46 starts checking the operation of the master call speaker 29 of the master interphone 20.

  In step S <b> 12, device control unit 46 transmits a call test signal for checking operation of parent device calling speaker 29 of parent device interphone 20 to parent device interphone 20 via device communication line I / F 42.

  In step S13, when receiving the call test signal from the control device 40 via the base unit call line I / F 24, the base unit control unit 30 emits a calling voice corresponding to the call test signal from the base unit call speaker 29. To do.

  In step S <b> 14, the base unit control unit 30 collects the calling voice emitted from the base unit calling speaker 29 by the base unit microphone 32, and sends the calling voice signal corresponding to the collected calling voice via the wire 22. Output to the main unit amplifier 26.

  In step S15, the base unit control unit 30 amplifies the calling voice signal by the base unit amplifier 26, and the amplified calling voice signal is transmitted to the control device 40 via the base unit switching unit 25 and the base unit call line I / F 24. And the base intercom 20 is switched from the off-hook state to the on-hook state.

  In step S16, when the calling voice signal is returned from the parent intercom 20 via the device call line I / F 42, the device control unit 46 returns the parent calling speaker 29 of the parent interphone 20 based on the calling voice signal. Determine whether is normal. Specifically, the device control unit 46 reads data for determining whether or not the main unit calling speaker 29 is normal from the storage unit 43, and when the frequency of the data and the calling voice signal match, When it is determined that the calling speaker 29 is in a normal state with no failure or error, and the frequency of the data does not match the frequency of the calling voice signal, or when the calling voice signal is not returned even after a predetermined time, It is determined that this parent device calling speaker 29 is in an abnormal state such as failure or error. Alternatively, when the level of the call voice signal is equal to or higher than the predetermined level, the device control unit 46 determines that the master call speaker 29 is in a normal state without any failure or error, and the level of the call voice signal is When it is less than a predetermined level, or when a call voice signal is not returned even after a predetermined time, it is possible to determine that the parent device call speaker 29 is in an abnormal state such as a failure or an error. Good.

  Then, when the device control unit 46 determines in step S17 that the parent device calling speaker 29 is normal, the operation check determination of the parent device calling speaker 29 of the parent device interphone 20 is performed via the device communication line I / F 42. The result is transmitted to the parent device notification unit 28 and the operation confirmation determination result of the parent device calling speaker 29 of the parent device interphone 20 is transmitted to the external management device 50 via the communication I / F 44. When the base unit control unit 30 receives the operation confirmation determination result of the base unit calling speaker 29 of the base unit interphone 20 from the control device 40 via the base unit communication line I / F 24, the base unit control unit 30 responds to the operation confirmation determination result. The green LED of the parent machine notification unit 28 is turned on.

  In step S18, the device control unit 46 transmits the operation confirmation determination result of the parent device calling speaker 29 of the parent device interphone 20 to the parent device notification unit 28 via the device communication line I / F 42. The operation confirmation determination result of the master call speaker 29 of the master intercom 20 is transmitted to the external management device 50 via / F44. When the base unit control unit 30 receives the operation confirmation determination result of the base unit calling speaker 29 of the base unit interphone 20 from the control device 40 via the base unit communication line I / F 24, the base unit control unit 30 responds to the operation confirmation determination result. The red LED of the parent machine notification unit 28 is turned on.

  As a result, the device control unit 46 can confirm the presence or absence of a failure of the parent device calling speaker 29 and can confirm the operation of the parent device interphone 20 including the parent device receiver 23.

  When the operation check start button of the base unit operation unit 27 is pressed by the timer unit 45 or the administrator, the device control unit 46 first checks the operation of the handset receiver 13 of the handset interphone 10, and then the base unit It is not limited to confirming the operation of the master handset 23 of the main unit interphone 20 and then confirming the operation of the main unit call speaker 29 of the main unit interphone 20. The operation of the handset receiver 23 may be confirmed, then the operation of the base unit call speaker 29 of the base unit interphone 20 may be checked, and then the operation of the handset receiver 13 of the handset interphone 10 may be checked. The order of performing can be changed as appropriate.

  In the intercom system 1 of the present invention having the above-described configuration, the device control unit 46 switches the slave unit interphone 10 from the on-hook state to the off-hook state, transmits a test audio signal to the slave unit interphone 10, and the slave unit control unit 17 amplifies the test voice signal to a higher level than that during the call by the handset amplifier 16, and emits the test sound corresponding to the amplified test voice signal at a louder volume than that during the call by the handset speaker 18. The handset microphone 19 collects the test sound emitted from the handset speaker 18, transmits a return test sound signal corresponding to the collected test sound to the control device 40, and the device control unit 46 returns the return sound. The presence or absence of failure of the handset speaker 18 and handset microphone 19 of the handset receiver 13 by determining whether the handset interphone 10 is normal based on the test audio signal In addition, it is possible to check whether there is a disconnection of the wire 12 connecting the handset main body 11 and the handset handset 13, abnormal connection, etc., and whether there is a failure in the handset main body 11 or the interphone 10 is controlled. The presence or absence of disconnection, connection abnormality, etc. of the telephone line 2 connecting the apparatus 40 can be confirmed, and the operation of the handset interphone 10 including the handset receiver 13 can be confirmed.

  In the intercom system 1 of the present invention, the device control unit 46 switches the base unit interphone 20 from the on-hook state to the off-hook state, transmits a test audio signal to the base unit interphone 20, and the base unit control unit 30 The test audio signal is amplified to a higher level than during the call by the amplifier 26, and the test audio corresponding to the amplified test audio signal is emitted at a louder volume than during the call by the parent speaker 31, and the parent microphone 32 The test sound emitted from the parent speaker 31 is collected and a return test sound signal corresponding to the collected test sound is transmitted to the control device 40, and the device control unit 46 is based on the return test sound signal. By determining whether or not the base unit interphone 20 is normal, there is a failure in the base unit speaker 31 and the base unit microphone 32 of the base unit receiver 23, and the base unit main body 21. It is possible to confirm the presence or absence of disconnection of the wire 22 connecting to the base unit handset 23, connection abnormality, etc., the presence or absence of a failure of the base unit main body 21, and the call connecting the base unit interphone 20 and the control device 40. The presence or absence of disconnection of the line 2 or connection abnormality can be confirmed, and the operation of the master intercom 20 including the master receiver 23 can be confirmed.

  Furthermore, in the intercom system 1 of the present invention, the device control unit 46 transmits a call test signal to the parent device call speaker 29, and the parent device control unit 30 is transmitted from the device control unit 46 by the parent device call speaker 29. The call voice according to the call test signal is emitted, the call voice emitted from the master call speaker 29 is collected by the parent microphone 32, and the call voice signal according to the collected call voice is controlled. The device control unit 46 determines whether or not the base unit call speaker 29 of the base unit interphone 20 is normal based on the ringing voice signal, so that the base unit call speaker 29 has a failure or the like. And the operation of the master intercom 20 including the master receiver 23 can be checked.

  In addition, since the control device 40 has the communication I / F 44 that communicates with the external management device 50, the determined determination result can be transmitted to the external management device 50. 20, the remote unit interphone 10, the base unit interphone 20, and the control device 40 can be monitored by the external management device 50 even at a remote place away from the control unit 40.

  In addition, since the control device 40 has the timer unit 45, the administrator sets the predetermined time for the operation check by operating the parent device operation unit 27, so that the child device interphone 10 and the parent device interphone are set. The operation can be automatically confirmed at a predetermined time.

  The slave unit interphone 10 emits a test voice from the slave unit speaker 18 and collects the emitted test signal directly by the slave unit microphone 19 to confirm the operation of the slave unit receiver 13. As shown in FIG. 7, the handset placement unit microphone 60 and the handset placement unit are placed on the handset placement unit 11 a of the handset main body 11 on which the handset receiver 13 is placed. The test sound emitted from the handset speaker 18 is collected by the handset placement unit microphone 60, and the collected test sound is emitted from the handset placement unit speaker 61 and emitted. The recorded test sound may be collected by the handset microphone 19 and the operation of the handset speaker 18 and handset microphone 19 may be checked.

  Specifically, when the handset receiver 13 is placed, the handset placement unit 11a collects test sound emitted from the handset speaker 18 provided at a position facing the handset speaker 18. The handset placement unit microphone 60 that makes sound, the handset placement unit amplifier 62 that amplifies the test sound collected by the handset placement unit microphone 60, and the handset microphone 19 are provided at positions facing the handset device 19. A slave unit placement unit speaker 61 that emits test sound corresponding to the test sound signal output from the placement unit amplifier 62;

  As a result, the slave unit placement unit microphone 60 collects the test voice emitted from the slave unit speaker 18 and outputs a test voice signal corresponding to the collected test voice to the slave unit placement unit amplifier 62. . Then, the slave unit placement unit amplifier 62 outputs the test voice signal output from the slave unit placement unit microphone 60 at a level higher than that during a call, and outputs the test voice emitted from the slave unit speaker 18 described above. When the sound is directly collected by the machine microphone 19, it is amplified to a smaller level and output to the child machine placement unit speaker 61. And the subunit | mobile_unit mounting part speaker 61 emits the test sound according to the test audio | voice signal output from the subunit | mobile_unit mounting part amplifier 62. FIG. Then, handset microphone 19 collects test sound emitted from handset placement unit speaker 61 and outputs a test sound signal corresponding to the collected test sound to handset amplifier 16 via wire 12. To do.

  The handset interphone 10 having the handset placement unit microphone 60 and the handset placement unit speaker 61 is provided with the handset placement unit microphone 60 at a position facing the handset speaker 18. Since the handset placement unit speaker 61 is provided at a position opposite to that of the handset, the test sound emitted from the handset speaker 18 is at a level higher than that during a call and is emitted from the handset speaker 18 described above. The test voice is collected at a lower level than when the sound is collected directly by the handset microphone 19, so that the handset speaker 18 and handset microphone 19 of the handset receiver 13 are not damaged, the handset main unit 11 and It is possible to check whether there is a disconnection of the wire 12 connecting the handset receiver 13 or a connection abnormality, and further, whether there is a failure in the handset main body 11, a call connecting the handset interphone 10 and the control device 40. Line 2 Line, it is possible to confirm the presence or absence of a connection abnormality, it is possible to check the operation of the slave unit intercom 10 comprising handset receiver 13.

  In addition, as shown in FIG. 7, the base unit interphone 20 also has a base unit placement unit microphone 70 and a base unit placement unit 21a of the base unit body unit 21 on which the base unit receiver 23 is placed as described above. The test voice emitted from the master speaker 31 is collected by the master placement microphone 70, and the collected test voice is collected from the master placement speaker 71. The test sound may be emitted and collected, and the operation of the parent speaker 31 and the parent microphone 32 may be confirmed by collecting with the parent microphone 32. About details, since it has the structure similar to the subunit | mobile_unit mounting part 11a of the subunit | mobile_unit intercom 10, description is abbreviate | omitted.

  The base interphone 20 having the base unit placement part microphone 70 and the base unit placement part speaker 71 is provided with the base unit placement part microphone 70 at a position facing the base unit speaker 31. Since the base unit placement unit speaker 71 is provided at a position opposite to the test unit, the test sound emitted from the base unit speaker 31 is at a level higher than that during the call and is emitted from the above-described base unit speaker 31. The test sound is collected at a lower level than when the sound is collected directly by the main unit microphone 32, so that the main unit speaker 31 and the main unit microphone 32 of the main unit receiver 23 are not damaged, and the main unit main body 21 It is possible to confirm the presence or absence of disconnection of the wire 22 connecting to the base unit handset 23, connection abnormality, etc., the presence or absence of a failure of the base unit main body 21, and the call connecting the base unit interphone 20 and the control device 40. Line 2 Line, it is possible to confirm the presence or absence of a connection abnormality, it is possible to perform operation check of the base unit interphone 20 including the master unit handset 23.

  The intercom system 1 is installed in each of a plurality of private rooms having a plurality of handset interphones 10 in a bank safety deposit box, and the master interphone 20 is installed on a manager's desk or the like that manages a safe deposit box located away from the safe deposit box. It is not limited to what is provided, and it may be installed in any place. For example, the intercom system 1 may be used at home.

It is a figure which shows the intercom system to which this invention was applied. It is a block diagram of a cordless handset interphone. It is a block diagram of a main unit intercom. It is a block diagram of a control apparatus. It is a flowchart which shows the operation | movement confirmation method to which this invention is applied and performs operation | movement confirmation of a subunit | mobile_unit intercom and a main | base station intercom. FIG. 6 is a continuation of FIG. 5 and is a flowchart showing an operation confirmation method to which the present invention is applied and which confirms the operations of the slave unit interphone and the master unit interphone. The slave unit (master unit) placement unit speaker and slave unit (master unit) are placed on the slave unit (master unit) placement part of the slave unit (master unit) main unit where the slave unit (master unit) receiver is placed. It is the figure which showed the subunit | mobile_unit (parent | base_unit) interphone by which a part microphone is arrange | positioned.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Interphone system, 10 cordless handset intercom, 11 cordless handset main part, 11a cordless device mounting part, 12 cable, 13 cordless handset receiver, 14 cordless handset line I / F, 15 cordless handset switching part, 16 cordless handset amplifier, 17 Slave unit control unit, 18 Slave unit speaker, 19 Slave unit microphone, 20 Master unit interphone, 21 Master unit body unit, 21a Base unit mounting unit, 22 Wired, 23 Base unit receiver, 24 Master unit communication line I / F , 25 Base unit switching unit, 26 Base unit amplifier, 27 Base unit operation unit, 28 Base unit notification unit, 29 Base unit call speaker, 30 Base unit control unit, 31 Base unit speaker, 32 Base unit microphone, 40 control device, 41 power supply unit, 42 device communication line I / F, 43 storage unit, 44 communication I / F, 45 timer unit, 46 device control unit, 50 external management device, 60 slave unit placement unit microphone, 61 slave unit placement unit The Over Ca, 62 subsidiary unit mounting portion amplifier, 70 the master unit mounting portion microphone 71 base unit mounting portion speaker, 72 base unit mounting portion amplifier

Claims (9)

The master unit interphone, at least one or more slave unit interphones connected to the master unit interphone, and connected between the master unit interphone and the at least one or more slave unit interphones, check the operation of the slave unit interphone. In an intercom system comprising a control device for performing
The control device
A switching signal transmitting means for transmitting a switching signal for switching the slave unit interphone to an on-hook or off-hook state to the slave unit interphone;
Test audio signal transmitting means for transmitting a test audio signal to the slave unit interphone switched from the on-hook state to the off-hook state by the switching signal transmitting unit;
Determining means for determining whether or not the slave unit interphone is normal based on a return test audio signal transmitted from the slave unit interphone;
A determination result transmitting means for transmitting the determination result determined by the determining means to the master intercom,
The above handset intercom is
A slave unit body connected to the control device;
Having a handset handset connected to the handset main body by wire,
The slave unit body is
A handset switching means for switching the handset interphone to an on-hook or off-hook state according to a switching signal transmitted from the switching signal transmitting means;
Amplifying the test voice signal transmitted from the test voice signal transmitting means to a higher level than during a call, and having a handset amplifier for outputting the amplified test voice signal to the handset receiver via a wire,
The above handset handset
A handset speaker that emits test sound according to the test sound signal output from the handset amplification means;
A handset microphone that collects the test sound emitted from the handset speaker and transmits a return test sound signal corresponding to the collected test sound to the determination means;
The master intercom has a notification means for notifying the determination result transmitted from the determination result transmission means,
The switching signal transmission means of the control device transmits a switching signal for switching the slave unit interphone from the on-hook state to the off-hook state to the slave unit switch unit of the at least one slave unit interphone,
The slave unit switching means switches the slave unit interphone from the on-hook state to the off-hook state in accordance with the switching signal transmitted from the switching signal transmitting unit,
The test audio signal transmitting means of the control device transmits the test audio signal to the slave unit amplifying means,
The slave unit amplifying unit amplifies the test voice signal transmitted from the test voice signal transmitting unit to a higher level than during a call, and outputs the amplified test voice signal to the slave unit speaker via a wire,
The handset speaker emits a test sound corresponding to the test sound signal output from the handset amplification means,
The handset microphone collects the test sound emitted from the handset speaker and transmits a return test sound signal corresponding to the collected test sound to the determination means.
The determination means of the control device determines whether the slave unit interphone is normal based on a return test audio signal transmitted from the slave unit microphone,
The determination result transmission means of the control device transmits the determination result determined by the determination means to the notification means,
The intercom system, wherein the notification means notifies the determination result transmitted from the determination result transmission means. Furthermore, the master intercom is
A main unit body connected to the control device;
A main unit handset connected to the main unit main body by wire;
The main unit is
A base unit switching unit that switches the base unit interphone to an on-hook or off-hook state according to a switching signal transmitted from the switching signal transmission unit;
Amplifying the test voice signal transmitted from the test voice signal transmitting means to a higher level than during a call, and having a base unit amplifying means for outputting the amplified test voice signal to the base unit receiver via a wire,
The above handset handset
A master speaker that emits a test sound corresponding to the test sound signal output from the master amplification means;
A master microphone that collects the test voice emitted from the master speaker and transmits a return test voice signal corresponding to the collected test voice to the determination means;
The switching signal transmission means of the control device transmits a switching signal for switching the master unit interphone from the on-hook state to the off-hook state to the master unit switching unit,
The base unit switching means switches the base unit interphone from an on-hook state to an off-hook state according to the switching signal transmitted from the switching signal transmission unit,
The test audio signal transmission means of the control device transmits the test audio signal to the parent device amplification means,
The base unit amplifying unit amplifies the test audio signal transmitted from the test audio signal transmission unit to a higher level than during a call, and transmits the amplified test audio signal to the base unit speaker via a wire,
The master speaker emits a test voice corresponding to the test voice signal output from the master amplifier means,
The master microphone collects the test voice emitted from the master speaker and transmits a return test voice signal corresponding to the collected test voice to the determination means.
The determining means of the control device determines whether the master intercom is normal based on a return test audio signal transmitted from the master microphone,
The determination result transmission means of the control device transmits the determination result determined by the determination means to the notification means,
The intercom system according to claim 1, wherein the notifying means notifies the determination result transmitted from the determination result transmitting means. Further, the control device has a call test signal transmission means for transmitting a call test signal to the base unit interphone switched from the on-hook state to the off-hook state by the switching signal transmission means,
Furthermore, the main unit body has a main unit call speaker that emits a calling voice in response to the call test signal transmitted from the call test signal transmission means,
The switching signal transmission means of the control device transmits a switching signal for switching the master unit interphone from the on-hook state to the off-hook state to the master unit switching unit,
The base unit switching means switches the base unit interphone from an on-hook state to an off-hook state according to the switching signal transmitted from the switching signal transmission unit,
The call test signal transmission means of the control device transmits the call test signal to the parent device call speaker,
The base phone call speaker emits a call voice according to the call test signal transmitted from the call test signal transmission means,
The parent microphone collects the calling voice emitted from the parent calling speaker and transmits a calling voice signal corresponding to the collected calling voice to the determination means.
The determination means of the control device determines whether the base unit interphone is normal based on a calling voice signal transmitted from the base unit microphone,
The determination result transmission means of the control device transmits the determination result determined by the determination means to the notification means,
The intercom system according to claim 2, wherein the notifying means notifies the determination result transmitted from the determination result transmitting means. Furthermore, the handset main body has a handset mounting portion on which the handset receiver is placed,
The slave unit placement part is
A handset placement unit microphone provided to face the handset speaker when the handset handset is placed on the handset placement unit;
A handset placement unit speaker provided so as to face the handset microphone when the handset receiver is placed on the handset placement unit;
The handset placement unit microphone collects the test sound emitted from the handset speaker, and outputs a test sound signal corresponding to the collected test sound to the handset placement unit speaker,
The slave unit placement unit speaker emits a test voice corresponding to the test voice signal output from the slave unit placement unit microphone,
The handset microphone collects the test sound emitted from the handset speaker via the handset placement unit microphone and the handset placement unit speaker, and returns according to the collected test sound. 2. The intercom system according to claim 1, wherein a test audio signal is transmitted to the determination means. Furthermore, the base unit body has a base unit mounting unit on which the base unit is mounted,
The base unit mounting part is
A base unit placement unit microphone provided to face the base unit speaker when the base unit receiver is placed on the base unit placement unit;
A master unit placement unit speaker provided to face the master unit microphone when the master unit receiver is placed on the master unit placement unit;
The base unit placement unit microphone collects the test sound emitted from the base unit speaker and outputs a test voice signal corresponding to the collected test voice to the base unit placement unit speaker.
The parent device placement unit speaker emits test sound corresponding to the test sound signal output from the parent device placement unit microphone,
The base unit microphone collects the test sound emitted from the base unit speaker via the base unit mounting part microphone and the base unit mounting part speaker, and returns according to the collected test sound. 3. The intercom system according to claim 2, wherein a test audio signal is transmitted to the determination means. Further, the control device has a communication means for communicating with the external management device,
The intercom system according to claim 1, wherein the communication unit transmits a determination result determined by the determination unit to the external management device.   The control device further includes a timer for transmitting a switching signal for switching the interphone interphone from an on-hook state to an off-hook state from the switching signal transmitting unit to the child unit switching unit at a set time. Item 4. The intercom system according to Item 1. Check the operation of the slave unit interphone, connected between the master unit interphone, at least one or more slave unit interphones connected to the master unit interphone, and the master unit interphone and the at least one or more slave unit interphones. In an intercom system operation check method comprising a control device for performing
The switching signal transmitting means of the control device transmits a switching signal for switching the slave unit interphone from an on-hook state to an off-hook state to the slave unit switching unit of the main body of the at least one slave unit interphone;
A step of switching the handset interphone from the on-hook state to the off-hook state according to the switching signal transmitted from the switching signal transmitting means;
A test audio signal transmitting means of the control device, the step of transmitting the test audio signal to a slave unit amplifying unit of the main unit of the slave unit interphone;
The slave unit amplifying unit of the slave unit interphone amplifies the test voice signal transmitted from the test voice signal transmitting unit to a level higher than that during a call, and the amplified test voice signal is wired to the main unit of the slave unit interphone. Outputting to the handset speaker of the handset receiver of the handset interphone connected via
A handset speaker of the handset interphone, emitting a test sound corresponding to the test sound signal output from the handset amplification means;
The handset microphone of the handset receiver of the handset interphone picks up the test sound emitted from the handset speaker, and returns a return test sound signal according to the collected test sound to the determination means of the control device. Sending, and
A step of determining whether or not the slave unit interphone is normal based on a return test audio signal transmitted from the slave unit microphone;
A step of transmitting a determination result determined by the determination unit to a notification unit of the master interphone;
An intercom system operation confirmation method comprising the step of notifying the base station intercom notification means of the determination result transmitted from the determination result transmission means. The master unit interphone, at least one or more slave unit interphones connected to the master unit interphone, and connected between the master unit interphone and the at least one or more slave unit interphones, check the operation of the slave unit interphone. In the control device to perform,
The control device
A switching signal transmitting means for transmitting a switching signal for switching the slave unit interphone to an on-hook or off-hook state to the slave unit interphone;
Test audio signal transmitting means for transmitting a test audio signal to the slave unit interphone switched from the on-hook state to the off-hook state by the switching signal transmitting unit;
Determining means for determining whether or not the slave unit interphone is normal based on a return test audio signal transmitted from the slave unit interphone;
A determination result transmitting means for transmitting the determination result determined by the determining means to the master intercom,
The switching signal transmitting means transmits a switching signal for switching the slave unit interphone from an on-hook state to an off-hook state to the at least one slave unit interphone,
The test audio signal transmitting means transmits the test audio signal to the slave intercom,
The determination means switches the handset interphone from an on-hook state to an off-hook state in accordance with the switching signal transmitted from the switching signal transmission means, and the test voice signal transmitted from the test voice signal transmission means is transmitted from the call. Amplifies to a high level, emits test sound according to the amplified test audio signal, collects the emitted test audio, and returns the response returned from the slave interphone according to the collected test audio Based on the test audio signal, determine whether the slave intercom is normal,
The control apparatus characterized in that the determination result transmission means transmits the determination result determined by the determination means to the master intercom and notifies the determination result.

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