JP2009111528A - Intercom device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intercom device which raises crime prevention and calmness for absence/sleeping, etc., and can answer to a calling at a time of emergency and from a resident, etc. <P>SOLUTION: The device includes: an intercom slave station 21 with a calling button 23; a calling detection circuit 36 which detects that the calling button 23 is pressed; a counter circuit 37 which counts the number of times of pressing the calling button 23 based on the detection of the calling detection circuit 36; an operation panel 38 which is possible to set a reference number of times predetermined beforehand; and a control unit 39 which does not output calling tone to a calling tone ringing speaker 33 when the counted number of times by the counter circuit 37 is less than a reference number of times predetermined beforehand, and outputs the calling tone to the calling tone ringing speaker 33 when the number is equal to or more than the reference number of times predetermined beforehand. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an interphone device, and more particularly to an interphone device that can suppress a call by a visitor unnecessary for a resident of a residence.

  FIG. 9 is a diagram showing a basic intercom device 10. The intercom device 10 includes an entrance cordless handset 1 and an indoor base phone 2, and the entrance cordless handset 1 and the indoor base phone 2 are usually installed at the entrance of the residence and in the home, respectively, and are connected by a cable C1. Yes.

  The front door 1 includes a call button 3 that a visitor presses to call a resident, and a call speaker 4 and a call microphone 5 that are used for a call between the resident and the visitor. The indoor base unit 2 is ringed when the call button 3 of the entrance unit 1 is pressed and a call signal is received via the cable C1, and the ringing sound speaker 6 for transmitting the call to the resident, and the call A ring volume switch 7 for adjusting the volume of the sound speaker 6 and a handset 8 for a resident to talk with a visitor are provided.

  In the intercom device 10 configured as described above, when a visitor presses the call button 3 of the front door 1, a call signal is input to the indoor base 2 via the cable C <b> 1. The indoor parent device 2 that has received the calling signal causes the ringing sound ringing speaker 6 to ring according to the volume set by the calling volume switching switch 7 to notify the resident of the calling. When the resident who has confirmed the call from the visitor detaches the handset 8 of the indoor parent device 2 from the main body of the indoor parent device 2, the visitor and the resident can communicate with each other via the cable C1.

  In the first conventional intercom apparatus, the indoor base unit includes a counter circuit with a timer, counts the number of times the call button is pressed within a predetermined time, and does not match the preset reference count When they match, the first ringing tone and the second ringing tone are sounded, and the volume can also be set, so that a general visitor and a resident at the time of returning can be identified. (For example, refer to Patent Document 1).

  In the second conventional intercom device, the indoor base unit has an answering / sleeping mode changeover switch, and when the answering / sleeping mode is set, calls from the outdoor unit (entrance unit) are suppressed. In this way, quietness at the time of midnight calling and crime prevention against calling from a suspicious person are improved. (For example, see Patent Document 2)

JP-A-11-331392 JP 2001-197212 A

  However, since the first conventional intercom apparatus handles two types of ringing sounds and volume, the configuration is complicated, and for example, by setting the ringing volume from a general visitor to “0”. The first ringer from some visitors can be prevented from ringing, but if the call button is pressed incorrectly even when the resident returns home, the ringer does not ring and is set by chance. When the same call button is pressed, the second ringing tone sounds, which is not sufficient for use for the purpose of crime prevention and blocking unnecessary calls at bedtime.

  Further, in the second conventional intercom device, it is possible to completely block the call from the visitor by setting the absence / sleeping mode. There is a difficulty that cannot be handled.

  The present invention has been made in order to solve the above-described problems. The object of the present invention is to improve crime prevention and quietness such as absence / sleeping, and for emergency calls and calls from residents, etc. It is to provide an intercom device that can respond.

The present invention is an interphone device including an interphone slave device including a call operation unit and an interphone parent device including an output unit that outputs a ringing sound according to an operation of the call operation unit,
Detecting means for detecting that the call operation unit is operated;
Counting means for counting the number of times the call operation unit has been operated based on detection by the detection means;
Frequency setting means capable of setting a predetermined reference frequency;
When the number counted by the counting means is less than a predetermined reference number, the output means does not output a ringing tone, and when the number is equal to or more than a predetermined reference number, the controlling means causes the output means to output a ringing tone. An intercom apparatus characterized by including:

The present invention also includes switching means for switching a plurality of operation modes,
The number-of-times setting means can individually set a predetermined number of references according to a plurality of operation modes,
The control means compares a predetermined reference count corresponding to the operation mode switched by the switching means with the number counted by the counting means.

In the present invention, the intercom base unit is
The number-of-times setting means;
A transmission means for giving information related to a predetermined reference count to the slave unit;
Including the control means,
The intercom slave is
The detection means;
The counting means;
Storage means for storing the information provided by the transmission means;
A judging means for judging whether the number counted by the counting means is less than a predetermined reference number or more than a predetermined reference;
And a transmission means for giving the result determined by the determination means to the control means.

Further, the present invention is a time measuring means for measuring an elapsed time since the call operation unit was first operated,
A time setting means capable of setting a predetermined reference time;
The control means obtains information on the elapsed time from the time measuring means, and even if the number of times counted by the counting means is a predetermined reference number or more, the elapsed time timed by the time measuring means is: The output means does not output a ringing tone until a predetermined reference time is exceeded.

  According to the present invention, when an operation of a call operation unit in an interphone slave set installed outdoors such as a front door is performed, a ringing tone output from an output unit in an interphone master set installed indoors is It is not output until the number of operations of the call operation unit in the slave unit reaches a preset reference number, and is output by the operation of the call operation unit after the operation number reaches a predetermined reference number. As a result, it is possible to suppress a ringing tone being output due to an operation of an undesired call operation unit such as a suspicious person, mischief, and going to sleep / absence, and improvement of crime prevention and quietness can be improved. It becomes possible. In addition, if the call operation unit is operated more than the set number of times of reference, a ringing tone is output. Therefore, the operation of the call operation unit is performed many times when a resident who knows the reference number of times returns home or in an emergency. It is possible to respond to necessary calls such as in the case of a break, and convenience can be improved.

  FIG. 1 is a block diagram showing a configuration of an intercom apparatus 20 according to an embodiment of the present invention. The intercom device 20 includes an interphone slave unit 21, an interphone master unit 31, and a cable C2 that connects them. The intercom handset 21 is installed outside the house (outside the room) such as the entrance of a house, for example, and the interphone base unit 31 is installed inside the house (in the room) and used.

  The intercom handset 21 includes a call button 23 that is a call operation unit, a call speaker 24, and a call microphone 25. The call button 23 is realized by a push button, for example, and is pressed when a visitor calls a resident. The call speaker 24 and the call microphone 25 are used for a call between a resident and a visitor. The calling button 23 is provided such that the operated portion is exposed from the housing of the intercom handset 21, and the call speaker 24 and the call microphone 25 are provided inside the case of the interphone handset 21. The housing of the intercom handset 21 has a hole so that the sound of the calling speaker 24 can be emitted outside the housing and the sound from the outside of the housing can be collected by the calling microphone 25. Is provided. The call button 23, the call speaker 24, and the call microphone 25 are electrically connected to the cable C2. The cable C2 has a plurality of signal lines, and the call button 23, the call speaker 24, and the call microphone 25 are respectively connected to individual signal lines. When the call button 23 is operated, that is, when the call button 23 is pressed, a call signal is given to the intercom base unit 31 via the cable C2.

  The intercom master 31 includes a ringing tone generating unit 32 and a ringing tone ringing speaker 33 as output means, a ringing volume changeover switch (SW) 34, a handset unit 35, a call detecting circuit 36 as detecting means, and counting means. The counter circuit 37, an operation panel 38 constituting a part of the number of times setting means, and a number of times setting means together with the operation panel 38, and a control unit 39 which is a control means.

  The ringing tone generating unit 32 and the ringing tone ringing speaker 33 output a ringing tone for notifying the resident of the visitor in response to the operation of the calling button 23, that is, in response to pressing of the calling button 23. The ringing tone generating unit 32 generates a sound signal for outputting a ringing tone in response to a control command from the control unit 39, gives this sound signal to the ringing tone ringing speaker 33, and the ringing tone ringing speaker 33. Ring. The ringing sound speaker 33 rings on the sound signal given from the ringing sound generator 32, that is, converts the sound signal into a sound and outputs it.

  The ringing volume changeover switch 34 is an adjusting unit that adjusts the volume uttered from the ringing sound speaker 33 and gives a command for adjusting the volume to the ringing tone generator 32. The ring volume switch 34 is realized by a volume switch, for example.

  The handset unit 35 is provided with a speaker and a microphone for a resident to talk with a visitor, and is detachably provided on the main body of the interphone base unit 31, and the handset main body is the main body of the interphone base unit 31. An attachment / detachment sensor circuit that gives a signal corresponding to the attachment / detachment state to the control unit 39, and a handset circuit that operates a speaker and a microphone of the handset body in response to a control command from the control unit 39. The handset unit 35 is electrically connected to the cable C2, and is connected to the call speaker 24 and the call microphone 25 via individual signal lines. The handset unit 35 can communicate with the call speaker 24 and the call microphone 25 in response to a command from the control unit 39.

  The call detection circuit 36 is electrically connected to the call button 23 via the cable C2. The call detection circuit 36 detects that the call button 23 of the intercom handset 21 has been pressed, that is, detects a call signal given via the cable C2. The call signal is generated in response to pressing of the call button 23. For example, when the call button 23 is pressed, the switching mode of the call button 23 changes, and when the call button 23 is released, the call signal is generated until it returns to the original switching mode again. To do. The call detection circuit 36 outputs a detection signal to the counter circuit 37 when the call detection signal is changed from the state where the call signal is not applied. For example, when the call button 23 is not pressed, a predetermined first voltage is applied to the call detection circuit 36, and when the call button 23 is pressed, a predetermined first voltage different from the predetermined first voltage is applied. Two voltages are configured to be provided to the call detection circuit 36.

  The counter circuit 37 counts the number of times the call button 23 is pressed based on the number of times that the call detection circuit 36 detects the call signal. Since the number of times the call button 23 is pressed is equal to the number of times that the detection signal is given from the call detection circuit 36, the counter circuit 37 may count the number of times that the detection signal is given. The counter circuit 37 gives information related to the counted number to the control unit 39 every time the counted number increases. The counter circuit 37 is reset in response to a control command from the control unit 39, that is, the number of times counted by the counter circuit 37 is cleared by the control command from the control unit 39 and is set to “0”.

  The operation panel 38 includes a key for setting a predetermined number of reference times for pressing the call button 23. The operation panel 38 also includes a key for giving a command to the control unit 39 to shift to a setting mode for setting a predetermined number of reference times, a release key for canceling the setting mode, a normal mode, a sleeping mode, an absence mode, and an absence mode. A mode selection key for selecting which one of a plurality of operation modes including the mode is to be used is provided.

  The control unit 39 includes a central processing unit (CPU), a first memory that stores a control program, a second memory that stores predetermined information, and a third memory that temporarily stores information. Is done. The control unit 39 is realized by the central processing unit executing the control program stored in the first memory. Further, the control unit 39 gives control commands to the ringing tone generating unit 32, the handset unit 35, and the counter circuit 37, respectively, and controls these units. When a command to shift to the setting mode is given to the control unit 39 by operating the keys on the operation panel 38, the control unit 39 operates in the setting mode. In the setting mode, the control unit 39 stores, in the second memory, information relating to a predetermined reference number given by operating the operation panel 38. The first memory is realized by a non-volatile recording medium such as a ROM (Read Only Memory), for example, and the second memory is realized by a rewritable non-volatile recording medium such as a flash memory. The first and second memories may be realized by a single memory. In this case, the first and second memories are realized by a rewritable nonvolatile recording medium. The third memory is realized by a RAM (Random Access Memory) and is a so-called work memory, which temporarily stores a control program executed by the central processing unit or temporarily stores a calculation processing result of the central processing unit. Or remember. The control unit 39 has a real-time clock and can count time.

The control unit 39 operates in each operation mode selected by the operation panel 38. The operation panel 38 and the control unit 39 are also a switching unit that switches between a plurality of operation modes. In the second memory, the predetermined reference number N (N is a natural number) can be individually set corresponding to each operation mode, that is, information on the predetermined reference number can be stored. For example, in the normal mode, the predetermined reference number is set to N ₁ (N ₁ is a natural number), in the sleeping mode, the predetermined reference number is set to N ₂ (N ₂ is a natural number), and in the absence mode, the predetermined reference number is set in advance. The predetermined reference count is set to N ₃ (N ₃ is a natural number), and in the absence mode, the predetermined reference count is set to N ₄ (N ₄ is a natural number). N ₁ , N ₂ , N ₃ , and N ₄ can be arbitrarily set by the user by operating the operation panel 38 in the setting mode.

  FIG. 2 is a flowchart showing an operation process of the control unit 39 when a ringing tone is generated. Here, it is assumed that one of a plurality of operation modes is selected by the operation panel 38. In addition, the interphone base unit 31 is provided with a power supply unit (not shown) and connected to a commercial power supply for household use. Power is supplied to the circuit 36, the counter circuit 37, the operation panel 38, and the control unit 39. In addition, power is supplied from the intercom base unit 31 to each part of the intercom handset 21, that is, the call button 23, the call speaker 24, and the call microphone 25 via the cable C2. The intercom handset 21 may be provided with a power supply unit different from the interphone base unit 31, and power may be supplied to each unit from this power supply unit. When the interphone base unit 31 is turned on and power is supplied to the power supply unit or when the intercom base unit 21 and the interphone base unit 31 are in a call state, the process proceeds from step a0 to step a1 to perform operation processing. To start. When starting the operation process, the control unit 39 resets the counter circuit 37.

  In step a1, the control unit 39 determines whether or not the call signal is received from the interphone slave unit 21, that is, whether or not information on the number of times counted from the counter circuit 37 is given. When a visitor presses the call button 23 of the intercom slave device 21, the call detection circuit 36 detects a call signal, and the counter circuit 37 starts counting the number of times the call button 23 is pressed. The counter circuit 37 gives information related to the counted number to the control unit 39 every time the counted number increases. If it is determined in step a1 that the call signal has been detected, that is, if it is determined that information relating to the number of times counted from the counter circuit 37 has been newly given, the process proceeds to step a2.

In step a2, the control unit 39 determines whether or not the number n (n is a natural number) represented by the information related to the counted number given from the counter circuit 37 is equal to or greater than a predetermined reference number N. Here, the predetermined reference count N is information relating to the predetermined reference count stored in the second memory corresponding to the operation mode. Thus, for example, the N in the normal mode, is _{N 1,} the N is in sleep mode, an _{N 2,} the N is pretend to be out mode is _{N 3,} in the recording mode N is a _{N 4.} If it is determined in step a2 that the number n represented by the information related to the counted number given from the counter circuit 37 is equal to or larger than the predetermined reference number N, the process proceeds to step a3, and is smaller than the predetermined reference number N in step a2. If it is determined, the process proceeds to step a1.

  In step a3, the control unit 39 activates the ringing tone generating unit 32, that is, gives a control command for ringing the ringing tone ringing speaker 33 to the ringing tone generating unit 32, and proceeds to step a1. The ringing tone generator 32 outputs a sound signal to the ringing tone ringing speaker 33 when a control command for ringing the ringing tone ringing speaker 33 is given from the control unit 39. Thereby, a ringing tone is output from the ringing tone ringing speaker 33, and a call from a visitor can be notified to the resident. The ringing tone is a sound of several seconds, for example, a single tone or music.

  If it is determined in step a1 that the calling signal is not detected, that is, if it is determined that information regarding the number of times counted from the counter circuit 37 is not newly given, the process proceeds to step a4. In step a4, the control unit 39 finally determines whether or not a predetermined first time T1 has elapsed since obtaining the information regarding the number of times counted from the counter circuit 37. In step a4, when it is determined that the predetermined first time T1 has elapsed since the information about the counted number given from the counter circuit 37 is finally obtained, the process proceeds to step a5. The predetermined first time T1 is selected, for example, from about 5 seconds to 10 seconds.

  In step a4, when it is determined that the predetermined first time T1 has not elapsed since the information about the counted number given from the counter circuit 37 is finally obtained, the process proceeds to step a1 and is given from the counter circuit 37. Step a1 and Step a4 are obtained until the predetermined first time T1 elapses after the information related to the counted number of times obtained is acquired or the information related to the counted number of times given from the counter circuit 37 is finally obtained. Is repeated at a predetermined cycle. Thus, by providing the process of step a4, even if another visitor presses down the call button 23 after a while, it is possible to prevent the ringing sound from being notified.

  In step a5, the control unit 39 gives a control command to the counter circuit 37, resets the counter circuit 37, that is, returns the number of times counted by the counter circuit 37 to “0”, and proceeds to step a1.

  The flowchart of FIG. 2 ends when the supply of power to the power supply unit is stopped or the state is switched to a call state.

  FIG. 3 is a flowchart showing an operation process of the control unit 39 when making a call. When the control unit 39 operates the ringing tone generation unit 32, a predetermined second time T <b> 2 elapses after giving a control command for ringing the ringing tone ringing speaker 33 to the ringing tone generation unit 32. Before determining whether or not the handset main body has detached from the main body of the intercom base unit 31. Specifically, the control unit 39 detects the attachment / detachment state of the handset body based on a signal given from the attachment / detachment sensor circuit of the handset unit 35, and the attachment state in which the handset body is attached to the body of the interphone master unit 31. From this, it is determined whether or not the handset main body has transitioned to a detached state in which it has left the main body of the intercom base unit 31. When the control unit 39 operates the ringing tone generating unit 32, a predetermined second time T2 elapses after giving a control command for ringing the ringing tone ringing speaker 33 to the ringing tone generating unit 32. If it is previously determined that the handset main body has detached from the main body of the intercom base unit 31, the process proceeds from step b0 to step b1.

  In step b1, the control unit 39 gives a control command to the handset circuit of the handset unit 35 to operate the speaker and microphone of the handset main body, and causes the ringing tone generating unit 32 to stop ringing of the ringing tone ringing speaker 33. Is given, and the process proceeds to step b2. By the process of step b1, a call can be made by the call speaker 24 and the call microphone 25 of the intercom handset 21 and the speaker and microphone of the handset body.

  In step b2, the control unit 39 detects the attachment / detachment state of the handset main body based on a signal given from the attachment / detachment sensor circuit of the handset unit 35, and determines whether the handset main body is attached to the main body of the interphone master unit 31 or not. to decide. If it is determined in step b2 that the handset main body is attached to the main body of the interphone base unit 31, the process proceeds to step b3. If it is determined that the handset main body is not attached to the main body of the interphone base unit 31, step b2 is repeated.

  In step b3, the control unit 39 gives a control command to the handset circuit of the handset unit 35, stops the operation of the speaker and microphone of the handset body, and ends the operation process.

  As described above, in the intercom device 20, when the call button 23 in the interphone handset 21 installed outdoors such as a front door is pressed, the sound is output from the ringer sound speaker 33 in the interphone master 31 installed indoors. The ringing sound is not output until the number of times the call button 23 is pressed reaches a preset reference count, and is output by the operation of the call button 23 after the operation count reaches a predetermined reference count. As a result, it is possible to prevent the ringing sound from being output due to the suspicious person, mischief, and undesired pressing of the calling button 23 such as when going to sleep or absent, and the improvement of crime prevention and quietness can be improved. It becomes possible. In addition, if the call button 23 is pressed more than the set number of times of reference, a ringing sound is output. Therefore, the resident who knows the number of times of reference returns to the home and is operated many times during an emergency. It is possible to respond to necessary calls such as in the case of a break, and convenience can be improved.

  When the operation mode is switched by the operation panel 38, the control unit 39 determines whether or not to generate a ringing tone based on a predetermined number of times of reference corresponding to the operation mode, so that the user can enter each operation mode. By setting the corresponding predetermined reference number, it is not necessary to set the predetermined number of times every time it is desired to change the predetermined reference number, and the convenience can be improved.

  FIG. 4 is a block diagram showing a configuration of an intercom device 40 according to another embodiment of the present invention. The interphone device 40 has a configuration similar to that of the interphone device 20 of the above-described embodiment, and the interphone device 20 determines whether or not to generate a ringing tone in the interphone base unit 31. In the embodiment, the only difference is whether or not the interphone slave unit 41 determines whether or not to generate a ringing tone. Therefore, the corresponding parts may be denoted by the same reference numerals and the description thereof may be omitted.

  The intercom device 40 includes an interphone slave unit 41, an interphone master unit 51, and a cable C2 that connects them. The intercom handset 41 includes a call detection circuit 36, a counter circuit 37, and a handset side control unit 42 in addition to the call button 23, the call speaker 24, and the call microphone 25. Is done. The subunit | mobile_unit side control part 42 is electrically connected with the main | base station side control part 59 mentioned later by the cable C2. The handset side control unit 42 and the base unit side control unit 59 are connected to the call speaker 24 and the call microphone 25 via different signal lines.

  The slave unit side control unit 42 functioning as a determination unit and a transmission unit includes a central processing unit (CPU), a fourth memory that stores a control program, and a storage unit that is a fifth memory that stores predetermined information. , Including a sixth memory for temporarily storing information. The subunit | mobile_unit side control part 42 is implement | achieved when a central processing unit performs execution processing of the control program memorize | stored in the 1st memory. Further, the slave unit side control unit 42 controls the counter circuit 37 by giving a control command. The subunit | mobile_unit side control part 42 memorize | stores the information regarding the predetermined reference frequency given from the main | base station side control part 59 in a 5th memory. The fourth memory is realized by a non-volatile recording medium such as a ROM, and the fifth memory is realized by a rewritable non-volatile recording medium such as a flash memory. The fourth and fifth memories may be realized by a single memory. In this case, the fourth and fifth memories are realized by a rewritable nonvolatile recording medium. The sixth memory is realized by a RAM (Random Access Memory) and is a so-called work memory, which temporarily stores a control program to be executed by the central processing unit or temporarily stores a calculation processing result of the central processing unit. Or remember. Moreover, the subunit | mobile_unit side control part 42 has a real-time clock, and can time-measure. Further, the slave unit side control unit 42 updates and stores in the fifth memory information relating to the predetermined reference count given from the master unit side control unit 59. Further, the slave unit side control unit 42 gives a call signal to the master unit side control unit 59 in response to pressing of the call button 23. The operation of the slave unit side control unit 42 will be described later.

  The intercom base unit 51 constitutes the number of times setting means together with the ringing tone generation unit 32, the ringing tone ringing speaker 33, the ringing volume changeover switch (SW) 34, the handset unit 35, and the operation panel 38, and is a control unit. And a base unit side control unit 59. The parent device side control unit 59 has the same configuration as the control unit 39 and differs from the control unit 39 only in the control program. When a command to shift to the setting mode is given to the parent device side control unit 59 by operating the keys on the operation panel 38, the parent device side control unit 59 operates in the setting mode. In the setting mode, base unit side control unit 59 operates in the same manner as control unit 39 described above. And if the information regarding the predetermined reference number is memorize | stored in the 2nd memory, the information regarding this predetermined reference number will be given to the subunit | mobile_unit side control part 42 via the cable C2. When the operation mode is changed, the parent device side control unit 59 stores information regarding the predetermined reference count stored in the second memory so as to face the changed operation mode every time the operation mode is changed. This is given to the machine-side control unit 42 and functions as a transmission means.

  FIG. 5 is a flowchart showing an operation process of the handset side controller 42 when a ringing tone is generated. Here, one of the plurality of operation modes is selected by the operation panel 38, and information on a predetermined reference count corresponding to the selected operation mode is stored in the fifth memory of the slave unit side control unit 42. Suppose that Further, the interphone master unit 51 is provided with a power supply unit (not shown), connected to a household commercial power supply, and each unit of the apparatus, that is, a ringing tone generating unit 32, a ringing tone ringing speaker 33, a handset unit 35, an operation panel 38 and the parent control unit 59 are supplied with electric power. In addition, a cable C2 is connected to each part of the intercom handset 41, that is, the call button 23, the call speaker 24, the call microphone 25, the call detection circuit 36, the counter circuit 37, and the handset side control unit 42. Electric power is supplied from the intercom base unit 51 through the intercom. The intercom handset 41 may be provided with a power supply unit different from the interphone base unit 51, and power may be supplied to each unit from this power supply unit. When the interphone base unit 51 is turned on and power is supplied to the power supply unit, or when the intercom base unit 41 and the interphone base unit 51 are in a call state, the process proceeds from step c0 to step c1 to perform operation processing. To start. When the operation process is started, the slave unit side control unit 42 resets the counter circuit 37.

  In step c1, the handset side control unit 42 determines whether or not information on the number of times counted from the counter circuit 37 is given. If it is determined in step c1 that the calling signal has been detected, that is, if it is determined that information regarding the number of times counted from the counter circuit 37 has been newly given, the process proceeds to step c2.

  In step c2, the slave unit side control unit 42 determines whether or not the number n (n is a natural number) represented by the information related to the counted number given from the counter circuit 37 is equal to or more than a predetermined reference number N. Here, the predetermined reference count N is information relating to the predetermined reference count stored in the fifth memory. If it is determined in step c2 that the number n represented by the information related to the counted number given from the counter circuit 37 is equal to or larger than the predetermined reference number N, the process proceeds to step c3, and is smaller than the predetermined reference number N in step c2. If it judges, it will move to step c1.

  In step c3, the slave unit side control unit 42 outputs a call signal to the cable C2, transmits the call signal to the master unit side control unit 59, and proceeds to step c1.

  If it is determined in step c1 that the call signal is not detected, that is, if it is determined that information regarding the number of times counted from the counter circuit 37 is not newly given, the process proceeds to step c4. In step c4, the slave unit side control unit 42 finally determines whether or not a predetermined first time T1 has elapsed since obtaining the information regarding the counted number of times given from the counter circuit 37. If it is determined in step c4 that the predetermined time T1 has elapsed since the information regarding the counted number of times given from the counter circuit 37 is finally obtained, the process proceeds to step c5.

  In step c5, the slave unit side control unit 42 gives a control command to the counter circuit 37, resets the counter circuit 37, that is, returns the number of times counted by the counter circuit 37 to “0”, and proceeds to step c1. .

  The flowchart in FIG. 5 ends when the supply of power to the power supply unit is stopped or the state is switched to a call state.

  FIG. 6 is a flowchart showing an operation process of the base-side controller 59 when a ringing tone is generated. Here, it is assumed that one of a plurality of operation modes is selected by the operation panel 38. When the interphone master unit 51 is turned on and power is supplied to the power supply unit or when the interphone master unit 41 and the interphone master unit 51 are in a call state, the process proceeds from step d0 to step d1 to perform operation processing. To start.

  In step d1, the parent device side control unit 59 determines whether a call signal is received from the child device side control unit. In step d1, if the parent device side control unit 59 determines that the call signal from the child device side control unit 42 has been received, the process proceeds to step d2, and if the call signal from the child device side control unit 42 has not been received. If determined, step d1 is repeated.

  In step d2, the base-side control unit 59 operates the ringing tone generating unit 32, that is, gives a control command for ringing the ringing tone ringing speaker 33 to the ringing tone generating unit 32, and proceeds to step d1. The ringing sound generating unit 32 outputs a sound signal to the ringing speaker 33 when a control command for ringing the ringing ringing speaker 33 is given from the control unit 39, so that a call from a visitor is notified to the resident. can do.

  The flowchart of FIG. 6 ends when the supply of power to the power supply unit is stopped or the state is switched to a call state.

  The operation processing of the base-side controller 59 when making a call is the same as that shown in the flowchart of FIG. 3, and the main operation has been changed from the control unit 39 to the base-side controller 59. Omitted.

  As described above, the interphone device 40 can achieve the same effects as those of the interphone device 20 described above. Further, by determining whether or not the interphone slave device 41 generates a ringing tone, the interphone master device described above is determined. Compared with the case where it is determined whether or not to generate a ringing tone at 31, it is only necessary to operate the interphone slave unit 41 until the ringing tone is generated. Power consumption can be suppressed.

  FIG. 7 is a block diagram showing a configuration of an intercom apparatus 60 according to still another embodiment of the present invention. The interphone device 60 has a configuration similar to that of the interphone device 20 of the above-described embodiment, and includes a timer unit 72 in addition to the configuration of the interphone device 20, and a part of the control operation of the control unit 39. Therefore, the corresponding components may be denoted by the same reference numerals and the description thereof may be omitted.

  The intercom device 60 is configured to include an interphone slave unit 21, an interphone master unit 71, and a cable C2 that connects them. The interphone base unit 71 includes a timer unit 72 in addition to the configuration of the interphone base unit 31 described above, and only a part of the control operation of the control unit 39 is different.

  The timer unit 72 is a time measuring unit, and measures time according to a control command from the control unit 39. The timer unit 72 is reset in response to a control command from the control unit 39, that is, the time counted by the timer unit 72 is cleared in response to the control command from the control unit 39 and is set to “0”.

  FIG. 8 is a flowchart showing an operation process of the control unit 39 when a ringing tone is generated. Here, it is assumed that one of a plurality of operation modes is selected by the operation panel 38. In addition, the interphone base unit 71 is provided with a power supply unit (not shown) and connected to a household commercial power supply, so that each unit of the apparatus, that is, a ringing tone generating unit 32, a ringing tone ringing speaker 33, a handset unit 35, and a call detection unit Power is supplied to the circuit 36, the counter circuit 37, the operation panel 38, the control unit 39, and the timer unit 72. In addition, power is supplied from the intercom master unit 71 to the respective units of the interphone slave unit 21, that is, the call button 23, the call speaker 24, and the call microphone 25 via the cable C2. The intercom handset 21 may be provided with a power source unit different from the interphone base unit 71, and power may be supplied to each unit from the power source unit. When the interphone master unit 71 is turned on and power is supplied to the power supply unit or when the interphone slave unit 21 and the interphone master unit 71 are in a call state, the process proceeds from step e0 to step e1 to perform operation processing. To start. When starting the operation process, the control unit 39 resets the counter circuit 37 and the timer unit 72, respectively.

  In step e1, the control unit 39 determines whether or not the call signal is received from the interphone slave unit 21, that is, whether or not the information regarding the number of times counted from the counter circuit 37 is given. If it is determined in step a1 that the call signal has been detected, that is, if it is determined that information relating to the number of times counted from the counter circuit 37 has been newly given, the process proceeds to step e2.

  In step e <b> 2, the control unit 39 determines whether or not the number n (n is a natural number) represented by the information related to the counted number given from the counter circuit 37 is “1”. In step e2, when the control unit 39 determines that the number n (n is a natural number) represented by the information related to the counted number given from the counter circuit 37 is “1”, the control unit 39 proceeds to step e3 and is not “1”. If it judges, it will move to step e4.

  In step e3, a control command is given to the timer unit 72 to start timing. When step e3 ends, the process moves to step e4.

  In step e4, the control unit 39 determines whether or not the number n (n is a natural number) represented by the information related to the counted number given from the counter circuit 37 is equal to or greater than a predetermined reference number N. If it is determined in step e4 that the number n represented by the information related to the counted number given from the counter circuit 37 is greater than or equal to the predetermined reference number N, the process proceeds to step e5 and if it is determined that the number is less than the predetermined reference number N, Move on to step e1.

  In step e5, the control unit 39 refers to the elapsed time measured by the timer unit 72 and determines whether or not the measured elapsed time t exceeds a predetermined reference time T3. The predetermined reference time T3 is stored in advance in the second memory for each operation mode in the same manner as the reference number N is set in the interphone device 20 described above, and corresponds to the operation mode set at that time. A reference time T3 is selected. Thus, by selecting the predetermined reference time T3, even when the call button 23 is pressed beyond the reference number N, the call can be invalidated within the reference time T3. In step e5, when the control unit 39 determines that the elapsed time t exceeds the predetermined reference time T3, the control unit 39 proceeds to step e6, and when it determines that the elapsed time t does not exceed the predetermined reference time T3, the control unit 39 proceeds to step e1. .

  In step e3, the control unit 39 operates the ringing tone generating unit 32, that is, gives a control command for ringing the ringing tone ringing speaker 33 to the ringing tone generating unit 32, and proceeds to step e1.

  If it is determined in step e1 that the calling signal is not detected, that is, if it is determined that information regarding the number of times counted from the counter circuit 37 is not newly given, the process proceeds to step e7. In step e7, the control unit 39 finally determines whether or not a predetermined first time T1 has elapsed since obtaining the information regarding the counted number of times given from the counter circuit 37. In step e7, when it is determined that the predetermined first time T1 has passed since the information about the counted number given from the counter circuit 37 is finally obtained, the process proceeds to step e8 and the predetermined first time T1. If it is determined that the period has not elapsed, the process proceeds to step e1.

  In step e8, the control unit 39 gives a control command to the counter circuit 37, resets the counter circuit 37, that is, returns the number of times counted by the counter circuit 37 to “0”, and proceeds to step a9.

  In step e9, the control unit 39 gives a control command to the timer unit 72, resets the timer unit 72, that is, returns the elapsed time measured by the timer unit 72 to “0”, and proceeds to step e1.

  The flowchart in FIG. 8 ends when the supply of power to the power supply unit is stopped or the state is changed to a call state. The operation process of the control unit 39 when making a call is the same as the flowchart shown in FIG.

  As described above, the interphone device 60 can achieve the same effect as that of the interphone device 20 described above. Further, the elapsed time after the call button 23 is pressed is measured, and the preset reference time T3 has elapsed. Until this time, even if the call button 23 is pressed more than the preset reference number N, the ringing sound speaker 33 is not ringed. Calling when N or more are pressed can also be disabled.

  In still another embodiment of the present invention, in the intercom device 40 described above, a timer unit 72 is provided, and the slave unit side control unit 42 performs the operation process of the control unit 39 shown in the flowchart of FIG. It is good. However, in this case, the subject of the operation in the flowchart of FIG. 8 is the slave unit side control unit 42, and step e6 of the flowchart of FIG. 8 is replaced with the process of step c3 of the flowchart of FIG. With such a configuration, the same effect as that of the intercom device 60 can be achieved.

  Furthermore, in each embodiment mentioned above, the call operation part is implement | achieved by the call button 23, However, In another form of implementation of this invention, a call operation part is by touching fingers, such as a touch sensor, for example. It may be operated or may be operated by pulling with fingers.

  In each of the above-described embodiments, the handset unit 35 is provided. However, the handset unit 35 may not be provided, and a call speaker, a call microphone, and a call start / stop operation unit may be provided. By operating the call start / stop operation unit to give a command to start a call or a command to stop a call to the control unit 39 and the base unit side control unit 59, the detachment sensor circuit allows the handset body to be detached / attached. The operation can be performed in the same manner as in the detection, and the same effect as in each of the above-described embodiments can be achieved.

  In each embodiment of the present invention, the interphone slave unit and the interphone master unit are electrically connected by a cable C2. However, instead of the cable C2, wireless communication is performed between the interphone slave unit and the interphone master unit. As a configuration in which the means is provided, various kinds of information such as a calling signal and a voice signal may be transmitted by wireless communication means. These wireless communication means communicate, for example, by a cordless telephone communication system. When the wireless communication means is provided, a power source is provided for each of the interphone slave unit and the interphone master unit. With such a configuration, the degree of freedom of installation of the interphone slave unit and the interphone master unit can be improved.

It is a block diagram which shows the structure of the intercom apparatus 20 of one Embodiment of this invention. It is a flowchart which shows the operation | movement process of the control part 39 when generating a ringing tone. It is a flowchart which shows the operation | movement process of the control part 39 at the time of a telephone call. It is a block diagram which shows the structure of the intercom apparatus 40 of other embodiment of this invention. It is a flowchart which shows the operation | movement process of the subunit | mobile_unit side control part 42 when generating a ringing tone. It is a flowchart which shows the operation | movement process of the main | base station side control part 59 when generating a ringing tone. It is a block diagram which shows the structure of the intercom apparatus 60 of further another form of implementation of this invention. It is a flowchart which shows the operation | movement process of the control part 39 when generating a ringing tone. 1 is a diagram showing a basic intercom device 10. FIG.

Explanation of symbols

10, 20, 40, 60 Interphone device 21, 41 Interphone handset 23 Call button 24 Speaker for call 25 Microphone for call 31, 51, 71 Interphone master unit 32 Ringer sound generation unit 33 Ringer sounding speaker 34 Call volume switch 35 Handset unit 36 Call detection circuit 37 Counter circuit 38 Operation panel 39 Control unit 59 Base unit side control unit 72 Timer unit C1, C2 Cable

Claims (4)

An interphone device including an interphone slave device including a call operation unit and an interphone parent device including an output unit that outputs a ringing sound in response to an operation of the call operation unit,
Detecting means for detecting that the call operation unit is operated;
Counting means for counting the number of times the call operation unit has been operated based on detection by the detection means;
Frequency setting means capable of setting a predetermined reference frequency;
When the number counted by the counting means is less than a predetermined reference number, the output means does not output a ringing tone, and when the number is equal to or more than a predetermined reference number, the controlling means causes the output means to output a ringing tone. An intercom device comprising: Including switching means for switching a plurality of operation modes,
The number-of-times setting means can individually set a predetermined number of references according to a plurality of operation modes,
2. The intercom apparatus according to claim 1, wherein the control unit compares a predetermined reference number corresponding to the operation mode switched by the switching unit with a number counted by the counting unit. The intercom base unit is
The number-of-times setting means;
A transmission means for giving information related to a predetermined reference count to the slave unit;
Including the control means,
The intercom slave is
The detection means;
The counting means;
Storage means for storing the information provided by the transmission means;
Determining means for determining whether the number counted by the counting means is less than a predetermined reference number or more than a predetermined reference number;
The intercom apparatus according to claim 1, further comprising: a transmission unit that gives the result determined by the determination unit to the control unit. A time measuring means for measuring an elapsed time since the call operation unit was first operated;
A time setting means capable of setting a predetermined reference time;
The control means obtains information on the elapsed time from the time measuring means, and even if the number of times counted by the counting means is a predetermined reference number or more, the elapsed time timed by the time measuring means is: The intercom apparatus according to any one of claims 1 to 3, wherein the output unit does not output a ringing tone until a predetermined reference time is exceeded.

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