JPH07212849A - Interphone security system - Google Patents

Abstract

PURPOSE:To provide an interphone security system for an independent house where the operation is simple but is difficult to decipher. CONSTITUTION:An interphone slave set 1 provided with a remote control part 3 for remote control of lock/unlock of the entrance is installed on the door of the gate or in the entrance of the house, and a master set 14 which controls lock/unlock of the entrance based on the entrance lock/unlock command sent from the remote control part 3 is installed in the house. The remote control part 3 is provided with an A button 11a, a B button 11b, and a C button 11c as input switches, and all of these button switches 11a, 11b, and 11c depressed at least once in accordance with a prescribed password order to execute the remote control. Therefore, the situation that the dirt of some button switches is especially conspicuous is avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom security system improved for single-family homes.

[0002]

2. Description of the Related Art Conventionally, as this type of security system, for example, a surveillance call system for an apartment house as described in Japanese Patent Laid-Open No. 4-324795 is known. In this surveillance call system, an alarm monitoring panel is installed in the manager's room, etc., a lobby intercom equipped with a dwelling unit call switch and a numeric keypad is installed in the common entrance, and further,
In each dwelling unit, an intercom indoor unit and a housing information board connected to an electric lock are installed, and these are connected to each other by multiple signal lines,
It is configured to perform mutual call, common entrance and electric lock control in each dwelling unit. In this configuration, the customer operates the numeric keypad and the dwelling unit call switch of the lobby intercom,
When a particular dwelling unit is called, the housing information panel of the called dwelling unit responds, and the dweller sends an unlocking signal to the electric lock device to open the common entrance door. Also, each dweller
When you go out or go home, you can operate the numeric keypad on the lobby intercom to enter your own unit number and PIN, and then indicate the unlocking / unlocking of the entrance lock. It is possible to operate the unlocking / unlocking of. By the way, even in a detached house, such a security system is necessary as a safety measure.

[0003]

However, in the conventional surveillance call system for an apartment house, as described above, the ten-key pad of the lobby intercom is operated to turn the password (ID code) or the entrance lock. Since it has a mechanism for inputting an unlock command (command code), there are the following problems when modifying this surveillance call system for a detached house. That is, in an apartment house such as an apartment, a large number of dwelling units use a large number of different dwelling unit numbers and personal identification numbers, so that the keys from the “0” key to the “9” key among the ten-keys can be distributed without exception. After a long time has been pressed, the frequency of pressing each key is also averaged, so that the dirt on the numeric keypad progresses uniformly. Therefore, the situation in which the dirt is concentrated on some specific keys (dirt polarization) does not occur. Therefore, the dirt on the numeric keypad is unlikely to be a clue to seeing out the personal identification number.

However, in the case of a detached house, since the housing unit number is unnecessary and the number of personal identification numbers to be used is limited,
The keypad of the intercom slave is divided into a key with a high frequency of pressing and a key with a frequency of pressing 0. Therefore, as the days pass, the key with a high frequency of pressing becomes contaminated, while the key with a high frequency of pressing The 0 key causes a situation where the freshness is continuously maintained (dirt polarization). If the dirt becomes unevenly distributed on some of the keys, the numbers that make up the personal identification number can be easily understood, which is dangerous because it induces the deciphering action of thieves and mischief. In order to eliminate such polarization of dirt, it is sufficient to use a personal identification number of 10 digits or more, but it is difficult to memorize a personal identification number of 10 digits or more, and the operation is complicated. , Not realistic.

The present invention has been made in view of the above circumstances, and provides a doorphone security system for a detached house that is easy to operate but is difficult to decipher (does not induce a deciphering action). The purpose is to do.

[0006]

In order to solve the above-mentioned problems, the present invention according to claim 1 is a remote control switch unit which is installed at a gate or at a front door and is used to remotely control turning / unlocking of an entrance lock. An intercom consisting of an intercom handset equipped with a door phone and a master unit installed in the house for controlling the turning / unlocking of the entrance lock based on the turning / unlocking command of the entrance lock sent from the remote control switch unit. In the security system, the remote control switch section is provided with a plurality of button switches for inputting an unlock / unlock command of an entrance lock, and all of these button switches are pressed at least once according to a predetermined secret code sequence. By doing so, it is characterized in that the remote operation is performed.

The invention according to claim 2 is characterized in that the remote control switch portion is provided with a plurality of the button switches, the number of which is smaller than the number of numeric keys forming the numeric keypad.

In the invention according to claim 3, among the plurality of button switches, the first button switch is continuously depressed M ₁ times and then the second button switch is continuously depressed M ₂ times. After that, a mechanism for inputting a rotation / unlocking command of the entrance lock by an operation procedure of continuously pressing the _third button switch M ₃ times or an operation procedure including a part of the operation procedure. It is characterized by being.

Furthermore, in the invention according to claim 4, when the number of erroneous operations exceeds a preset reference number during the remote operation, an alarm sound is emitted in the house. It is characterized by that.

[0010]

According to the structure of claim 1, in order to remotely control the turning / unlocking of the entrance lock from the intercom slave installed in the gate or the like, all button switches provided in the remote control switch section are By pressing each key once or more in accordance with a predetermined code sequence, a command to rotate / unlock the front door is input. Upon receiving a command to rotate / unlock the entrance lock from the intercom slave, the parent device in the home controls the entrance / unlock of the entrance lock. According to the above configuration, all the button switches are pressed down every time the remote operation is performed, so that it is possible to avoid a situation where some of the button switches are particularly contaminated. Therefore, the contamination of the button switch does not cause a deciphering clue, and thus does not induce a deciphering action.

According to the second aspect of the invention, since the number of button switches installed is small, the configuration becomes simple. Therefore, it is suitable for use in a detached house.

Further, according to the third aspect of the invention, since the entry / unlock command of the entrance lock is input by the operation of pressing each button switch several times in succession, even if the number of times of pressing is increased. , Easy to memorize and easy to operate. Claim 2
If the configuration of 1 and the configuration of claim 3 are combined, the decryption is extremely difficult even though the configuration is simple. Furthermore, in the configuration according to claim 4, since the deciphering act is notified in the house,
It's safe.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an electrical configuration of a doorphone security system (hereinafter, simply referred to as a doorphone system) which is an embodiment of the present invention, and FIG. 2 is an external configuration of a doorphone slave unit used in the doorphone system. In the figure, (a) is a front view, (b) is a side view, and FIG. 3 is a front view showing an external configuration of a dedicated master unit used in the doorphone system. The intercom system of this example relates to a door intercom system for a detached house that enables control of various security devices (entrance locks, lighting equipment, etc.) in the house from the gate or the front door. A doorphone handset (outdoor phone outdoor unit) that is installed and has a call function with the house and a remote control function for various security devices in the house, and a call function with the doorphone handset installed indoors and remote from the doorphone handset It is roughly configured from a dedicated master unit (doorphone indoor unit) having a function of controlling and monitoring various security devices in response to an operation, and 6-core communication is provided between the intercom slave unit and the dedicated master unit. Connected to each other with a cable.

First, the mechanical structure will be described. As shown in FIG. 2, the intercom subunit 1 remotely controls a call unit 2 for mutual communication with a dedicated master unit and various security devices (entrance locks, lighting equipment, etc.) in the home. Remote operation unit 3 and display unit 4 for displaying a guide of remote operation procedures and the like.
The box 5 has a call button 6 and a speaker 7 which are included in the call section 2 and are arranged at the left end of the front panel of the box 5.
And a microphone 8 are provided. Further, at the right end of the front panel of the box 5, a card insertion slot 9 of a card reader which constitutes the remote control section 3 is provided. Further, in the center of the front panel of the box 5, a start button 1 that also constitutes various switches of the remote control unit 3
0, "A" button 11a, "B" button 11b, and "C" button switch 11c, and a red LED display 12r and a green LED display 12 which constitute the display unit 4.
g is provided. In addition, as shown in FIG.
A card insertion slot 9 which constitutes the remote control section 3, a start button 10, an "A" button 11a, a "B" button 11b, and a "C" button switch 11c, and a red LED display 12r which constitutes the display section 4 and Green LED display 1
2 g is made visible and hidden by a hidden cover 13 that can be opened and closed to prevent tampering when not in use.

Next, as shown in FIG. 3, the dedicated master unit 14 can open and close the electric lock at the entrance to the telephone main body 15 capable of outside call, extension call, intercom call and emergency call. The door lock unit 16 is provided, and a lock switch 18s, an unlock switch 18k, a green LED display 19g, and a red LED display 19r that form the door lock unit 16 are provided at the right end of the upper surface of the box 17. . To lock the entrance by operating the entrance lock unit 16, the lock switch 18s is turned on, the unlock switch 18k is turned off, and the entrance lock is locked. When the entrance lock is locked, the green LED indicator 19g is turned on and the red LED indicator 19r is turned off. To operate the entrance lock unit 16 to unlock the entrance, turn on the unlock switch 18k, and the locking switch 18s turns off.
It is set to F and the entrance lock is unlocked. When the door lock is unlocked, the red LED indicator 19r is turned on and the green LED indicator 19g is turned off. Further, a remote operation enable switch 20 and a red LED display 21 are provided at the right end of the upper surface of the box 17, and the remote operation enable switch 2
When 0 is in the ON state, remote operation from the intercom slave 1 is enabled, and in the OFF state, remote operation is disabled. The red LED display 21 is
In the lit state, it is displayed that remote operation from the intercom subunit 1 is possible.

Next, the electrical configuration will be described with reference to FIG. In the intercom handset 1, the microphone 8 forming the call unit 2 inputs the voice of the visitor. Similarly, the speaker 7 that constitutes the call unit 2 responds to a back tone such as “ping-pong” at the time of calling and voice of the resident, and a security information notification command input from the remote control unit 3 in response to the dedicated master device 14 It outputs the in-house security information (voice message) sent from.

The remote control section 3 includes a switch circuit section 22 and
The card reader 23, a code conversion circuit 24, and a PB generator 25 are roughly configured. The switch circuit section 22 includes a start button 10 for starting an operation and an "A" button 1 for manually inputting various commands for remote operation.
1a, "B" button 11b, and "C" button 11c only. In this example, various commands are input by sequentially pressing the "A" button 11a, the "B" button 11b, and the "C" button 11c six times in any combination. For example, lighting ON / OF
The F command is in the order of A → B → C → A → B → C (hereinafter, the arrow is omitted and is displayed as “ABCABC”), and the rotation / unlock command of the entrance lock is in the order of “CBACBA”. The security information notification command is input by pressing the corresponding buttons 11a, 11b, 11c in the order of "ABCCBA".

When the card is inserted from the card insertion slot 9, the card reader 23 reads out and inputs various remote operation commands written on the card by magnetism. The switch circuit unit 22 and the card reader 23 send corresponding command codes to the code conversion circuit 24 via the buffers 26 and 27 when various remote control commands are input by a button or a card. The code conversion circuit 24 converts the command code supplied from the switch circuit unit 22 or the card reader 23 into a command code that can be processed by the PB generator 25, and outputs the command code. PB generator 2
Reference numeral 5 is equipped with a two-frequency transmission circuit that simultaneously generates two types of high and low frequencies. Based on the converted command code, sine waves of two corresponding audio frequencies are generated and mixed, and a DTMF signal (dual tone signal) is generated. : Dual-tonemulti
PB command signal (push-butt) which is a frquency signal
on dial signal). PB generator 25
The PB command signal generated by
8 and the communication cable 29, and is transmitted to the dedicated master device 14.

The display section 4 includes a red LED indicator 12r for emitting red light, a green LED indicator 12g for emitting green light,
The LED drive circuit 30 and the PB receiver 31 are roughly configured to display the progress of remote control and the completion of control.
The PB receiver 31 includes the communication cable 29 and the buffer 3
The PB display control signal transmitted from the dedicated parent device 14 is received via 2 and a digital display control signal corresponding to the received PB display control signal is sent to the LED drive circuit 30. The LED drive circuit 30 receives the red LED 12 based on the display control signal supplied from the PB receiver 31.
The r and green LEDs 12g are turned on, turned off, or blinked, respectively.

Next, the dedicated master unit 14 controls and monitors security devices such as a fire sensor and a front door lock based on various commands from intercom calls, outside calls, extension calls, and intercom slaves. Then, a PB receiver 33 and a PB generator 34 for exchanging various PB signals with the intercom slave unit 1, a lighting controller 35 for controlling the lighting in the house, and a door lock unit 16 are configured to control the door lock. The door lock controller 36, a power supply unit 37 for supplying electric power (AC8V) to the internal circuit of the intercom subunit 1, a voice synthesizing unit 38 for synthesizing and outputting a voice, a voice channel matrix 39 for forming a voice channel, a doorphone call , Outside line call,
A telephone circuit 40 for making an extension call and a CPU (central processing unit) 41 for controlling each part of the device are roughly configured.

The PB receiver 33 is an intercom slave unit 1.
Output from the PB generator 25, and transmitted via the communication cable 29 and the buffer 42.
The B command signal is received, and the corresponding command code (digital signal) is sent to the CPU 41.

The CPU 41 controls each part of the system by multitask processing by executing a processing program stored in a ROM forming an internal memory (not shown) using a work RAM also forming the internal memory. For example, when a command code is supplied from the PB receiver 33, it is collated with a lighting ID code, a door lock ID code, and a security information ID code stored in a rewritable EEPROM which also constitutes an internal memory,
As a result of the collation, if the input command code matches the lighting ID code, the lighting ON / OFF processing routine is executed, and if the entered command code matches the entrance lock ID code, the entrance / unlock processing routine is executed. If it matches the security information ID code, the security information notification processing routine is executed. In each processing routine, the CPU 41 outputs a digital display control signal at appropriate times in order to guide and display the operation procedure to the operator of the intercom slave unit 1.

The PB generator 34 is an intercom slave unit 1.
Of the same configuration as the PB generator 25 of
1 is converted into a PB display control signal which is a DTMF signal (dual tone signal), and the display unit 4 (PB receiver 31 of the intercom subunit 1 is supplied via the buffer 43 and the communication cable 29. ).

In the illumination controller 35, the CPU 41
Lighting ON / OFF output by receiving the lighting ON / OFF command code from the PB receiver 33
Based on the control signal, a selector switch (not shown) is driven to turn on / off the lighting equipment in the house. The entrance lock controller 36 is a motor-type or electromagnetic-type entrance lock (electric lock) based on a turning / unlocking control signal output by the CPU 41 receiving the turning / unlocking command code of the entrance lock from the PB receiver 33. ) Open and close. Also, CPU
A disaster prevention sensor such as a flame sensor 44 and a gas sensor 45 and a crime prevention sensor such as a door lock sensor 46 are connected to 41 through an interface circuit (sensor relay unit) (not shown). The detection signal output from 46 is taken in and the emergency notification is controlled.

The voice synthesizing unit 38 has a ring tone such as "Torurururu", a chime sound such as "ping-pong", "entrance safety", "window safety", "fire safety", and "window opens". It is equipped with a memory that stores various synthetic voice messages such as "I am still", "I have forgotten to turn off the fire", "Gas leaks", etc., depending on the control of the CPU 41, ring tone, chime sound or synthetic voice. The message is sent to the channel matrix 39. The channel matrix 39 is C
The input / output terminals can be freely routed by the control of the PU 41, whereby the intercom slave 1 is freely connected to the voice synthesizer 38 and the telephone circuit 40 via the buffer 47 and the like.

Next, the operation of the intercom system of this example will be described with reference to the flow charts of FIGS. When the door phone system of this example is powered on, the CPU 41 in the dedicated master device 14 first initializes each part of the system. This initialization is
This includes clearing various registers, resetting various flags, and initializing various variables that are the initial settings of peripheral circuits. After the initialization is completed, any time the visitor presses the call button 6 of the call section 2, the intercom communication mode is set, and the CPU 41 controls the communication channel matrix 39 to exclusively use the intercom slave 1. It enables mutual call with the base unit 14. On the other hand, after the initialization is completed, the operator turns on the remote operation enable switch 20.
Then, from this, the CPU 41 causes the steps S1 and S
2, go to S3. In steps S1, S2 and S3, CP
The U41 puts the display unit 4 of the intercom subunit 1 in the green lighting state and waits for the start button 10 of the remote control unit 3 to be pressed (step S2) or for a card to be inserted into the card reader 23 (step S3). ). The operator knows that the display unit 4 is in a green lighting state, and thus is in a state of waiting for an operation start by button (manual) input or card input. Since the CPU 41 performs the multitasking process, even when the operation start wait state is set, if the visitor presses the call button 6 of the call section 2, the intercom call mode is set, and the CPU 41 sets the call path matrix. 39 is controlled to enable mutual communication between the intercom slave 1 and the dedicated master 14.

[A] Button input When the operator depresses the start button 10 in the operation start waiting state, the remote operation mode by button (manual) input is set, and the CPU 41 proceeds to step S4. , The display section 4 of the intercom slave 1 is turned on in red and waits for the input of various commands (command codes) (steps S4 to S6). Since the state of the display unit 4 has changed to the red lighting state, the operator knows that it is in a state of waiting for various commands (command codes) by button (manual) input. The command waiting for input here is "ABCAB
Lighting ON / OF consisting of "C" code string (6 strings)
It is either an F command, a door lock / unlock command consisting of a password string of "CBACBA", or a security information notification command consisting of a password string of "ABCCBA". In this state, when the operator does not complete the input of the personal identification character string consisting of A, B, and C within a preset time, that is, when the time is up (step S
6) Then, the process returns to the operation start waiting state (green LED 12g lighting state) in steps S1 to S3.

(1A) Remote operation of lighting ON / OFF Here, when the operator desires remote operation of the illumination by a button (manual) input, while the red LED display 12r is lit, " Operate the "A" button 11a, "B" button 11b, and "C" button 11c to turn on / off the illumination.
When the personal identification character string for instructing FF is input, the command code corresponding to this character string is fetched by the CPU 41.
When the CPU 41 fetches this command code, the process proceeds to step S7, where the command code is the EEPROM.
It is determined whether or not it matches the lighting ID code registered in.

When the result of this judgment is [YES], that is, the command code corresponding to the personal identification character string is the illumination I.
If it matches with the D code, the CPU 41 moves to step S12 shown in FIG. 5, sets the display unit 4 of the intercom slave 1 in a red blinking state, and waits for either the lighting ON command or the lighting OFF command. Wait (steps S12 to S15).
The operator knows that the display unit 4 is in the state of waiting for the illumination ON command or the state of waiting for the illumination OFF command because the state of the display unit 4 has changed to the red blinking state. In this state, if the operator does not input the illumination ON command or the illumination OFF command within the preset time set sufficiently long, the time is up (step S15), and the operation start waiting state in steps S1 to S3 ( It returns to the lighting state of the green LED 12g).

On the other hand, if the "B" button is pressed while the red LED indicator 12r is blinking, it is determined that the command is for lighting ON (step S13), and if the "C" button switch is pressed, lighting is turned OFF. It is determined that it is a command (step S14). When the illumination ON command code arrives from the remote control unit 3 of the intercom subunit 1, the CPU 41 sends an illumination ON control signal to the illumination controller 35 to turn on the illumination in the house (step S16), while , Lighting O
When the FF command code arrives, a lighting OFF control signal is sent to the lighting controller 35 to turn on the lighting in the house.
FF is set (step S17). After this, step S
The process returns to the operation start waiting state of 1 to S3 (the lighting state of the green LED 12g). The operator knows that the remote operation of lighting ON / OFF is completed because the state of the display unit 4 has changed to the green lighting state.

(2A) Remote operation of turning / unlocking the entrance lock In the states of steps S4 to S6 (while the red LED display 12r is lit), the operator operates the entrance lock remotely by pressing a button (manual). When desired, operate the "A" button 11a, "B" button 11b, and "C" button 11c of the remote control unit 3 to enter a password string that commands the entry / exit of the entrance lock. The command code corresponding to the column is fetched by the CPU 41. When the CPU 41 takes in the command code, the CPU 41 proceeds to step S8 and determines whether the command code matches the door lock ID code registered in the EEPROM.

If the result of this determination is [YES], that is, if the command code corresponding to the personal identification character string matches the entrance lock ID code, the CPU 41 moves to step S18 shown in FIG. The display unit 4 of the cordless handset 1 is made to blink in red and green, and the arrival of either the lock command or unlock command at the entrance is waited for (steps S18 to S2).
1). Since the state of the display unit 4 has changed to the red / green blinking state, the operator knows that it is in the state of waiting for the entrance lock command or the unlock command. In this state, if the operator does not input the lock command or unlock command at the entrance within the preset time set long enough, the time is up (step S21) and the operation start waiting state of steps S1 to S3 is set. It returns to (the lighting state of the green LED 12g).

On the other hand, the red LED indicator 12r and the green L
If the "B" button is pressed while the ED indicators 12g are both blinking, it is determined that the command is a locking command (step S19),
When the "C" button switch is pressed, it is determined that it is an unlock command (step S20). The CPU 41 sends a lock control signal to the entrance lock controller 36 to lock the entrance when the entrance command code from the remote control unit 3 of the intercom subunit 1 arrives (step S22), while unlocking the door. When the command code arrives, an unlock control signal is sent to the entrance lock controller 36 to unlock the entrance (step S23). After that, the process returns to the operation start waiting state (the green LED 12g lighting state) in steps S1 to S3. The operator knows that the remote operation of turning / unlocking the entrance lock has been completed since the state of the display unit 4 has changed to the green lighting state.

(3A) Remote Operation of Security Information Notification In the state of steps S4 to S6 (while the red LED display 12r is lit), when the operator desires remote operation of security information notification by button (manual) input. , "A" button 11a, "B" button 11b of the remote control unit 3,
When the "C" button 11c is operated to input a password string for instructing security information, a command code corresponding to this string is fetched by the CPU 41. CPU4
1 fetches this command code, the step S9
Then, it is determined whether or not this command code matches the security information ID code registered in the EEPROM.

If the result of this determination is [YES], that is, if the command code corresponding to the personal identification character string matches the security information ID code, then the CPU 41
Moves to step S24 shown in FIG.
The display unit 4 is blinked in green and the arrival of the security information notification command is awaited (steps S24 to S26). The operator knows that it is in the state of waiting for the security information notification command because the state of the display unit 4 has changed to the green blinking state. In this state, if the operator does not input the security information notification command within the preset time set sufficiently long, the time is up (step S26), and the operation start waiting state in steps S1 to S3 (green LED 1
Return to the 2g lighting state).

On the other hand, if the "A" button is pressed while the green LED indicator 12g is blinking, it is determined that the security information notification command is issued (step S25). CPU41
When the security information notification command code arrives from the remote control unit 3 of the intercom slave 1, the output data of the flame sensor 44 is monitored through the interface circuit (sensor relay unit) not shown, Is detected, then the output data of the gas sensor 45 is monitored to determine whether a gas leak has occurred, and further the output data of the door tightening sensor 46 is monitored, It is judged whether or not the opening is opened on the openings other than the entrance (step S27), and the judgment result is "entrance safe", "window safe", "fire safe", "window remains open". , "I have forgotten to turn off the fire", "a gas leak has occurred", and the like is output from the call section 2 of the intercom subunit 1 (step S28). The operator recognizes the state of the security status in the home from the synthesized voice message. After that, the process returns to the operation start waiting state (the green LED 12g lighting state) in steps S1 to S3. The operator knows that the remote operation of the security information notification is completed because the state of the display unit 4 has changed to the green lighting state.

(4A) Button input error On the other hand, in step S5, the CPU 41 determines that the command code input by the button is any of the illumination ID code, the door lock ID code, or the security information ID code registered in the EEPROM. If they do not match (steps S7 to S9), it is determined that there is an input error. In this example, since the personal identification character string consists of 6 characters, the CPU 41 causes the various buttons 11a, 11b, 11c to
When is pressed 6 times in an arbitrary order, that is, when 6 characters have been input, it is determined that a command code has been input, and collation with various ID codes is performed. Because every time one character is input, it is judged whether or not it is input correctly, and if it is an error (misoperation),
Immediately, the lighting state of the green LED 12g (step S1 to
If it returns to S3), it will be easily deciphered by a thief and dangerous.

In step S10, the number of errors is determined, and if the number of errors is less than or equal to a preset reference number, the process returns to the command waiting state (the red LED 12r lighting state) in steps S4 to S6. On the other hand, when the number of errors exceeds the reference number, the process proceeds to step S11, in order to prevent the decoding, the remote operation enable switch 20 of the in-home dedicated master device 14 is turned off, and the illumination from the intercom slave device 1 is turned on / off. , Remote control such as opening and closing the entrance lock and notifying security information is disabled. At this time, the CPU 41
Turns off all the display units 4 and informs the operator that "remote operation such as lighting ON / OFF from the intercom slave, opening / closing the entrance lock, and notifying security information cannot be performed". After the remote control is disabled, if the remote control enable switch 20 in the house is turned on, the remote control from the intercom slave 1 can be performed again.

The problem here is that if the remote operation enable switch 20 of the dedicated parent device 14 is turned off during the unlocking operation of the entrance lock by the button input, the card input is no longer performed by the button input operation. There is no way to unlock the entrance lock even by operation, and unless you have a manual key at hand, you will not be able to enter the house. This is very preferable for crime prevention, but on the other hand, it becomes very troublesome if the resident himself cannot enter because he / she has forgotten the remote control procedure (that is, the secret code string) by button input. Therefore, in this example, even when the remote operation enable switch 20 of the dedicated master device 14 is in the OFF state, the emergency card in which the special password character string for instructing the remote operation enable switch ON is registered in the card reader 23. When inserted, the remote operation enable switch 20 is configured to return to the ON state. When the remote operation enable switch 20 is returned to the ON state by the emergency card, the resident who is the operator unlocks the entrance lock by inserting a card for turning / unlocking the entrance lock, which will be described later, into the card reader 23. it can.

[B] Card Input On the other hand, when the operator inserts a card into the card insertion slot 9 of the card reader 23 in the operation start waiting state (steps S1 to S3), the remote operation mode by card input is started. Is set, the command code magnetically recorded on the card is read, and the read command code is the code conversion circuit 24, the PB generator 25, and the PB generator.
After being processed by a receiver or the like, it is fetched by the CPU 41. When the CPU 41 fetches this command code,
As shown in FIG. 8, jump to steps S29 to S31,
It is determined whether this command code matches the lighting ID code, the entrance lock ID code, or the security information ID code registered in the EEPROM.

(1B) Remote operation of lighting ON / OFF When the operator desires remote operation of lighting, lighting ON / OF is set.
A card dedicated to F operation is inserted into the card reader 23. Therefore, since the command code fetched from the card matches the illumination ID code, it is determined to be [YES] in step S29, and the CPU 41 proceeds to step S12 in FIG. 5 and the display unit 4 of the intercom subunit 1. Is made to blink red, and the arrival of either one of the illumination ON command and the illumination OFF command is awaited (steps S32 to S35).
The operator knows that the display unit 4 is in the state of waiting for the illumination ON command or the state of waiting for the illumination OFF command because the state of the display unit 4 has changed to the red blinking state. In this state, if the operator does not input the illumination ON command or the illumination OFF command within the preset time set sufficiently long, the time is up (step S35), and the operation start waiting state in steps S1 to S3 ( It returns to the lighting state of the green LED 12g).
On the other hand, if the "B" button is pressed while the red LED indicator 12r is blinking, it is determined that the lighting ON command is received (step S33), and if the "C" button switch is pressed, the lighting OFF command is received. It is determined (step S34). CP
From the remote control unit 3 of the intercom slave unit 1, U41 lights the lighting O.
When the N command code arrives, the lighting controller 3
A lighting ON control signal is sent to the lighting unit 5 to turn on the lighting in the house (step S36). On the other hand, when the lighting OFF command code arrives, the lighting controller 35 is turned on.
The FF control signal is sent to turn off the lighting in the house (step S37). After that, the process returns to the operation start waiting state (the green LED 12g lighting state) in steps S1 to S3. The operator knows that the remote operation of lighting ON / OFF by card input is completed because the state of the display unit 4 has changed to the green lighting state.

(2B) Remote control of entrance lock / unlock operation When the operator desires remote operation of the entrance lock,
A card dedicated to the unlocking operation is inserted into the card reader 23. Therefore, since the command code fetched from the card matches the entrance lock ID code, step S30
6 is determined as “YES”, the CPU 41 causes the CPU 41 of FIG.
Of step S18, the display unit 4 of the intercom slave 1 is blinked in red and green, and the arrival of either the lock command or unlock command at the entrance is waited (steps S18 to S2).
1). Since the state of the display unit 4 has changed to the red / green blinking state, the operator knows that it is in the state of waiting for the entrance lock command or the unlock command. In this state, if the operator does not input the lock command or unlock command at the entrance within the preset time set long enough, the time is up (step S21) and the operation start waiting state of steps S1 to S3 is set. It returns to (the lighting state of the green LED 12g).

On the other hand, the red LED indicator 12r and the green LE
When the "B" button is pressed while the D display 12g is both blinking, it is determined that the command is a locking command (step S19),
When the "C" button switch is pressed, it is determined that it is an unlock command (step S20). The CPU 41 sends a lock control signal to the entrance lock controller 36 to lock the entrance when the entrance command code from the remote control unit 3 of the intercom subunit 1 arrives (step S22), while unlocking the door. When the command code arrives, an unlock control signal is sent to the entrance lock controller 36 to unlock the entrance (step S23). After that, the process returns to the operation start waiting state (the green LED 12g lighting state) in steps S1 to S3. The operator knows that the remote operation of turning / unlocking the entrance lock by card input is completed because the state of the display unit 4 has changed to the green lighting state.

(3B) Remote operation of security information notification When the operator desires remote operation of security information notification, a card dedicated to the security information notification operation is inserted into the card reader 23. Therefore, since the command code fetched from the card matches the security information ID code, it is determined to be [YES] in step S31, and the CPU 41 proceeds to step S12 in FIG. 4 is made to blink green, and the arrival of the security information notification command is awaited (step S24).
~ S26). The operator knows that it is in the state of waiting for the security information notification command because the state of the display unit 4 has changed to the green blinking state. In this state, if the operator does not input the security information notification command within the preset time set long enough, the time is up (step S26), and the operation start waiting state of steps S1 to S3 (green LED 12g Return to the lit state).

On the other hand, if the "A" button is pressed while the green LED indicator 12g is blinking, it is determined that the command is a security information notification command (step S25). CPU41
When the security information notification command code arrives from the remote control unit 3 of the intercom slave 1, the output data of the flame sensor 44 is monitored through the interface circuit (sensor relay unit) not shown, Is detected, then the output data of the gas sensor 45 is monitored to determine whether a gas leak has occurred, and further the output data of the door tightening sensor 46 is monitored, It is determined whether or not the opening is opened also at the opening other than the entrance (step S27), and the determination result is output as a synthetic voice from the communication unit 2 of the intercom subunit 1 (step S2).
8). The operator recognizes the state of the security status in the home from the synthesized voice message. After that, the process returns to the operation start waiting state (the green LED 12g lighting state) in steps S1 to S3. The operator knows that the remote operation of security information notification by card input is completed because the state of the display unit 4 has changed to the green lighting state.

(4B) Card input error On the other hand, the CPU 41 determines that the command code input by the card does not match any of the illumination ID code, door lock ID code, or security information ID code registered in the EEPROM. When (steps S29 to S3
1), the input error is determined (step S10), and when the number of errors is less than or equal to a preset reference number, the operation start waiting state of steps S1 to S3 (green LED 12g
Return to the lit state of. On the other hand, when the number of errors exceeds the reference number, the process proceeds to step S11, and in order to prevent the decoding, the remote operation enable switch 20 of the dedicated parent device 14 in the home is used.
Is turned off and the lighting from the intercom subunit 1 is turned on / of
F, remote control such as opening and closing the entrance lock and notifying security information will be disabled. At this time, the CPU 41 causes the display unit 4 to
, Turn off all lights, and turn on the lighting from the intercom slave.
/ OFF, opening / closing of the entrance lock, and remote control such as security information notification are no longer possible. " The problem here is that if the remote operation enable switch 20 of the dedicated master device 14 is turned off at the time of unlocking the entrance lock by card input, no longer by card input or button input, It is impossible to enter the house.
This is very preferable for crime prevention, but on the other hand, it becomes very troublesome if the resident cannot enter due to mechanical and magnetic failure of the card. Therefore, in this example, the remote operation enable switch 2 of the dedicated master device 14 is used.
Even when 0 is turned off, the remote operation enable switch 20 is returned to the on state if a special password character string for instructing the remote operation enable switch to be turned on is pressed. When the remote operation enable switch 20 returns to the ON state, the operator (resident) can unlock the entrance lock by the remote operation procedure by the button input described above.

According to the above configuration, the illumination ON / OFF command (“ABCABC”), the entrance lock / unlock command (“CB
ACBA ”), security information notification command (“ ABCC ”
Input of "BA") is performed by "A" button 11a,
Two "B" buttons 11b and two "C" buttons 11c
It is done by pressing the button once and the start button 10
However, since it is always used at the time of operation, it is possible to avoid a situation where some buttons are particularly dirty. Therefore, there is no possibility that the stain on the button may be used as a clue for decoding. Further, since the number of buttons to be installed is small and the configuration is simple, it is suitable for a detached house. In addition, even if a card is input, remote operations such as lighting ON / OFF from the intercom slave, opening / closing of the entrance lock, and security information notification can be performed, which facilitates remote operation and keeps the buttons clean so that they can be decrypted. The risk of becoming farther away. On the other hand, if it is troublesome to take out the card from the commuter pass or the like, the button input can be selected.
Further, in the case of a card abnormality, remote operation can be restored by button input, while remote operation can be restored by card input when button operation is forgotten, so that a troublesome situation can be avoided.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific structure is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, the card reader may be omitted, and the lighting ON / OFF operation function or the security information notification operation function may be appropriately omitted. Moreover, the number of button switches for command input is not limited to three, and can be increased or decreased as necessary. However, it is preferable that the number is smaller than the total number of numeric keys that compose the numeric keypad. Further, the secret character string is not limited to 6 character strings, and can be increased or decreased as necessary. However, in the case of forming the personal identification code string with three character strings, since there are only 39 combinations of pressing, assuming that one operation requires 10 seconds, it will be decoded within 390 seconds. Therefore, in such a case, the error count is 3
It is preferable that the remote operation enable switch be turned off after the number of times is exceeded.

Further, in the above-mentioned embodiment, the lighting is turned on.
Example of inputting the / OFF command as "ABCABC", inputting the unlock / unlock command of the entrance lock as "CBACBA", and inputting the security information notification command as "ABCCBA", that is, the same character is not pressed continuously. I mentioned an example, but I'm going to press the "A" button M ₁ times in a row, then
It is also possible to input various commands by the operation procedure of pressing the “B” button M ₂ times in succession and then pressing the “C” button M ₃ times in succession. It is easy to memorize how many times each button is pressed continuously regardless of the number of times the button is pressed, and the operation is relatively simple. However, it becomes difficult to decipher as the number of presses increases.

Further, in the above embodiment, when the number of errors exceeds the preset reference number, the remote operation enable switch of the dedicated master unit is turned off in order to prevent the decoding.
Although the case where the remote control from the intercom slave 1 is disabled as F has been described, the configuration may be such that an alarm sound sounds in the house instead of or in addition to this. In this way, the deciphering action is immediately notified in the house, which is safe. After the alarm is issued, it is good to change the personal identification string.

Further, in the above-mentioned embodiment, a dedicated card for each individual operation (a card dedicated to the lighting ON / OFF operation, a card dedicated to the turning / unlocking operation of the entrance lock, a card dedicated to the security information notifying operation, an emergency Card), but with one card, all commands for turning / unlocking the entrance, turning on / off the lighting, turning on the security information, and turning on the remote control enable switch, or each of these. An arbitrary combination of commands (for example, a command to turn / unlock the entrance and a command to turn on / off the lighting) may be input. Also, not only for card input but also for button input, one operation (command input)
Then, a plurality of processes, that is, two processes of entrance turning / unlocking control and lighting ON / OFF control, two processes of entrance turning / unlocking control and security information notification control, or It is also possible to sequentially perform the three processes of turning / unlocking control, lighting ON / OFF control, and security information notification control.

Further, in the above-mentioned security information notification command, the case of monitoring all of the origin of fire, gas leakage, and door lock has been described, but if necessary, a part of these may be omitted, and another security may be omitted. Information may be added. Further, if a lock command for the entrance lock is input, a voice message of security information may be output in addition to the lock control for the entrance lock.

Further, in the above-mentioned embodiment, the case where the magnetic card in which the data such as the command code is written by magnetism is used as the card for the remote operation input is described, but the data is not limited to the magnetic card. An optical card written in an optical recording medium, I in which data is electronically recorded
A C card or the like may be used, and other various cards may be used. Of course, for example, when an optical card is used, a transmissive optical card reader that reads data from the presence or absence of transmitted light or a reflective optical card that reads data from the intensity of reflected light is used according to the type of optical card. The reader is used, and when the IC card is used, the IC card reader is used so that the data recorded in the rewritable EPROM incorporated in the IC card can be read.

[0054]

As described above, according to the first aspect of the invention, all button switches are used to remotely control the turning / unlocking of the entrance lock from the intercom slave installed in the gate or the like. However, since the turning / unlocking command of the entrance lock is input for the first time after being pressed in accordance with the predetermined secret code sequence, it is possible to avoid a situation where some of the button switches are particularly contaminated. Therefore, the contamination of the button switch does not cause a deciphering clue, and thus does not induce a deciphering action. Also,
According to the configuration of claim 2, the number of button switches installed is small, and therefore the configuration is simple. Therefore, it is suitable for use in a detached house. Further, according to the configuration of claim 3, since the input of the rotation / unlocking command of the entrance lock is performed by the operation of pressing each button switch several times in succession, even if the number of times of pressing is increased, it is memorized. Easy and easy to operate. If the configuration of claim 2 and the configuration of claim 3 are combined, the decryption is difficult even though the configuration is simple. Furthermore, the configuration according to claim 4 is safe because the deciphering action is notified in the house.

[Brief description of drawings]

FIG. 1 is a block diagram showing an electrical configuration of a doorphone system according to an embodiment of the present invention.

2A and 2B are diagrams showing an external configuration of a doorphone slave unit used in the doorphone system, wherein FIG. 2A is a front view and FIG. 2B is a side view.

FIG. 3 is a front view showing an external configuration of a dedicated master unit used in the doorphone system.

FIG. 4 is a flowchart showing an operation processing procedure of the doorphone system of this example.

FIG. 5 is a flowchart showing an operation processing procedure of the doorphone system of this example.

FIG. 6 is a flowchart showing an operation processing procedure of the doorphone system of this example.

FIG. 7 is a flowchart showing an operation processing procedure of the doorphone system of this example.

FIG. 8 is a flowchart showing an operation processing procedure of the doorphone system of this example.

[Explanation of symbols]

1 Doorphone cordless handset 3 Remote operation part (remote operation switch part) 14 Dedicated master device (master device) 23 Card reader (part of remote operation switch part) 22 Switch circuit part (part of remote operation switch part) 11a "A "Button (button switch) 11b" B "button (button switch) 11c" C "button (button switch)

Claims (4)

[Claims] 1. An intercom slave installed at a gate or at a front door and provided with a remote control switch unit for remotely controlling turning / unlocking of an entrance lock, and a front door installed in a house and sent from the remote control switch unit. A door phone consisting of a master unit that controls the turning / unlocking of the entrance lock based on the turning / unlocking command of the lock.
In the security system, the remote control switch section is provided with a plurality of button switches for inputting an unlocking / unlocking command of an entrance lock, and all of these button switches are at least once according to a predetermined secret code sequence. An intercom security system, wherein the remote operation is performed by pressing the key. 2. The remote control switch section is provided with a plurality of button switches, the number of which is smaller than the number of numeric keys forming a numeric keypad.
Doorphone security system described. 3. The first of the plurality of button switches
Press the button switch for M ₁ times in succession, then
Press the button switch of M _two times in a row and then
The key lock / unlock command is inputted by an operation procedure of continuously pressing the button switch of M ₃ times or an operation procedure including a part of the operation procedure. The intercom system according to claim 1 or 2. 4. The number of erroneous operations during the remote operation is
The intercom security system according to claim 1, 2 or 3, wherein when a preset reference number of times is exceeded, an alarm sound sounds in the house.