JPH1082222A - Transmitter and security system using transmitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To largely reduce illegal intrusion by the illegal acquisition of a transmitter and the mistake accident of an entrance history at a time when different transmitters are used by mistake by confirming whether or not a user is right at every transmission. SOLUTION: A passwork code is input by the push-button operation of a password-code input means 5, and the password code is stored in a password- code storage means 6c. A collation decision means 7c compares and collates the password code and a collation data. A transmitter 9 transmits and outputs a transmission message containing an ID code when collation coincides. A receiver 11 receives the transmission message from the transmitter 9. The received transmission message is stored in a reception-data storage means 12a as a reception data. A collation decision means 13b compares and collates the reception data and the collation data. An external output means 14 outputs a control signal to a driving means 3 when collation agrees. The driving means 3 releases doors for a residence and an automobile by the control signal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for, for example, a key of a house or a car, an entry permission system for permitting entry only to those who have entry qualifications, an entry management system for recording entry, and the like. The present invention relates to a transmitter for transmitting and receiving a security code to lock and unlock a key, and a security system using the transmitter.

[0002]

2. Description of the Related Art Numerous systems have been proposed which receive IDs and passwords from transmitters using infrared rays or radio waves, permit entry to the room, record the history of entry, and simply unlock the electric lock. Has been put to practical use.

[0003] In a system using this type of transmitter, proposals have been made to prevent unauthorized use of the transmitter. Here, unauthorized use is roughly divided into the following two.

(1) Unauthorized acquisition of the transmitter itself. (2) A method of transmitting a copy of a transmission signal of a transmitter to a receiver.

[0005] Here, as a defense measure against the unauthorized use of the above (2), Japanese Patent Application Laid-Open Nos.
A system disclosed in JP-A-120988 has been proposed.

FIG. 10 is a block diagram showing the overall configuration of the system disclosed in Japanese Patent Application Laid-Open No. 8-120987. This system has a battery 21 as a power supply, and transmits and transmits a transmission message including an ID code and a security code wirelessly each time the operation switch 22 is turned on, and updates the security code, and a transmission message. A receiver 24 that receives a sentence and outputs an operation signal corresponding to the transmission message on condition that the ID code and the password code match, and locks or opens a vehicle door according to the operation signal output from the receiver 24. It is schematically configured with a lock mechanism 25 for unlocking.

More specifically, the transmitter 23 is provided with a CPU 26 as a control unit for executing various arithmetic processes and controlling each unit intensively. The CPU 26 has a ROM 2 for storing fixed data such as operation programs.
7, an EEPROM 28 as a memory for holding data in a rewritable manner, and a RAM 29 for storing variable data and functioning as a work area or the like. E
The EPROM 28 stores a secret code in an updatable manner, and the ROM 27 stores a transmission message format and a predetermined function for updating the secret code.

[0008] The receiver 24 has a CPU 30 as a control unit for centrally controlling each unit by executing various arithmetic processing.
The CPU 30 has a ROM 31 for storing fixed data such as an operation program, an EEPROM 32 as a memory for rewritably holding data, and a RAM 33 for storing variable data and functioning as a work area or the like.
And are connected. The EEPROM 32 stores a reference code corresponding to the password of the transmitter 23 in an updatable manner, and the ROM 31 stores an ID code, the same function as that of the transmitter 23, and the like.

The CPU 30 includes a transmitter 23
The transmission message transmitted and output is received, the received transmission message is converted into digital data, and a receiver 34 for inputting to the CPU 30 and an operation signal from the CPU 30 are output to the actuator 35 of the lock mechanism 25. Interface 36 is connected.

In the system having the above configuration, a rolling code or a dynamic code is used as a personal identification code transmitted from the transmitter 23 to the receiver 24. This rolling code or dynamic code changes the password every single or several transmissions,
The reference code on the receiver 24 side has a code system that changes in the same manner.

In the above-described system, the personal identification code transmitted from the transmitter 23 is updated in accordance with a predetermined rule each time the personal identification code is transmitted once or several times.
By updating the standard code of
The password code and the reference code that match each other are changed as needed to combat unauthorized use.

FIG. 11 is a diagram showing the configuration of the system disclosed in Japanese Patent Application Laid-Open No. 8-120988. This system comprises a transmitter 43 for transmitting a recognition code by pressing a transmission switch 42 provided on a key 41, and a transmitter 4 for transmitting a recognition code.
The receiver 44 receives the recognition code transmitted from the receiver 3 and demodulates it, and a microcomputer 45 to which the recognition code demodulated by the receiver 44 is input. The microcomputer 45 includes a CPU 47, a memory 48, and an input interface 49 around a bus 46.
And an output interface 50, to which a motor 51 for opening and closing the lock is connected.

In the above system, the receiver 44
Whether an incorrect recognition code that increases or decreases by a certain value is received from the code scanner a predetermined number of times within a predetermined time, or whether an incorrect recognition code is received a predetermined number of times within a predetermined time interval at a certain time interval,
The microcomputer 45 determines that the stolen person has attempted the theft by the code scanner and activates the anti-scan function, in any case of receiving the incorrect recognition code in the predetermined time or more within the predetermined time, Prevents theft.

As described above, in the above-described system, when the receiver 44 receives a signal different from the proper recognition code from the transmitter 43 for a certain number of times or more, the receiving function is stopped to prevent unauthorized use. Was.

[0015]

However, in any of the above-mentioned systems, if the transmitter itself is illegally obtained, the effect is lost, and the transmitter is illegally used. In addition, any of the systems simply includes the operation switch 22 and the transmission switch 42.
Since the transmission output is made every time the switch is pressed, for example, the switch 2 is turned on by the movement of the body in a state of being put in a pocket.
2,42 may be pushed without permission. In this case, the transmission output is made even if the user does not perform the operation of pressing the operation switch 22 or the transmission switch 42, and when the receiver receives the transmission output and the password matches, for example, the door of the house or the car is arbitrarily set. It was unlocked and lacked the reliability of the system.

In view of the above circumstances, the present invention can confirm whether a transmitter is a legitimate user every time transmission is performed. For example, a person who has illegally obtained a transmitter can simply press a transmission push button. It is an object of the present invention to provide a transmitter with an identity verification function and a security system using the transmitter, which can greatly reduce the number of accidents in entry history when a wrong transmitter is used by accidentally entering or using a different transmitter.

[0017]

According to a first aspect of the present invention, there is provided a transmitter according to a first aspect of the present invention, wherein a password is inputted by a pressing operation of a push button, and a password is inputted by the password input means. Collation determining means for collating the personal identification code with predetermined collation data to determine whether or not the contents match, and a determination signal from the collation determining means indicating that the personal identification code and the collation data match. And a transmitter for transmitting and outputting a transmission message including an ID code when the input is input.

The transmitter according to the second aspect of the present invention
PIN code input means for inputting a PIN code by a push-button operation, and the PIN code input by the PIN code input means is collated with preset collation data to determine whether or not the contents match. A collation judging means, and a transmitter for transmitting and outputting a transmission message including the password and the ID code when a judgment signal indicating that the password and the collation data match from the collation judging means is input. It is characterized by having.

According to a third aspect of the present invention, there is provided a transmitter.
PIN code input means for inputting a PIN code by a push-button operation, and the PIN code input by the PIN code input means is collated with preset collation data to determine whether or not the contents match. Collation determining means, error number counting means for counting the number of times the security code and the collation data are determined to be inconsistent by the collation determining means, and the error frequency counting means counting a preset limit number of times. When the input code is input from the input code prohibiting means for prohibiting the input by the personal identification code input means for a predetermined time, and when a determination signal indicating that the personal identification code matches the verification data is input from the verification determination means, And a transmitter for transmitting and outputting a transmission message including the password and the ID code.

According to a fourth aspect of the present invention, there is provided a security system according to the second or third aspect, a receiver for receiving a transmission message transmitted and output from the transmitter, and a reception data received by the receiver. Collation determining means for collating the security code and the ID code with predetermined collation data to determine whether or not the contents match each other; and from the collation determining means, the security code and the ID code and the collation data. And output means for outputting an operation signal when a determination signal indicating that the two are matched with each other is provided.

According to a fifth aspect of the present invention, there is provided a security system, comprising: a security code input means for inputting a security code by a pushing operation of a push button; a security code holding means for holding a security code input by the security code input means; A transmitter having a transmitter for transmitting and outputting a transmission message including the personal identification code and the ID code held in the personal identification code holding means; a receiver for receiving a transmission message transmitted and output from the transmitter; Collation determining means for collating the personal identification code and the ID code included in the received data received by the receiver with predetermined collation data to determine whether or not the contents match; Output means for outputting an operation signal when a determination signal indicating that the code and ID code match the collation data is input. Characterized by comprising a receiving means that.

According to a sixth aspect of the present invention, in the security system according to the fourth or fifth aspect, the reception means counts the number of times when it is determined that the password included in the received data does not match the verification data. The apparatus is provided with a mismatch counting means and an alarm means for outputting an alarm signal when the collation mismatch counting means has counted a preset limit number of times.

According to the present invention, an unauthorized use of the transmitter is prevented by adding a function of inputting a personal identification code for personal identification by a push button. Further, when an incorrect password is continuously input on the transmitting side, input reception of the password is prohibited for a certain period of time, and erroneous transmission including unauthorized input is reduced. Furthermore, when received data that does not match is continuously input on the receiving side, an error is notified by an alarm to reduce erroneous operations including incorrect input.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is applied to, for example, a house or car key, an entry permission system for permitting entry only to those who have entry qualification, an entry management system for recording entry, and the like. A password input function is provided to confirm that the transmitter is a valid user every time transmission is attempted.

FIG. 1 is a diagram showing a first embodiment of the present invention, and is a block diagram of a security system including a transmitter. The security system according to the first embodiment has a transmitter 1, a receiver 2, and a driver 3 as transmission means, and has a schematic configuration. When an input password is correct, the ID of the transmitter 1 is used.
Sending code.

The transmitter 1 serving as a transmitting means is driven by the supply of power from a battery 4, has a portable structure, and has a password input means 5, a storage means 6, a control means (CPU ) 7, switching means 8, and transmitter 9.

The security code input means 5 is for inputting a security code of a predetermined number of bits, and sends out the input security code to the control means 7. This password input means 5
Is input only to the authorized holder of the transmitter 1. FIG. 2 (a)
(C) is a diagram showing a specific configuration of the personal identification code input means 5.

The password input means 5 shown in FIG.
Is composed of a numeric keypad 5a, and a password code of a predetermined bit is input by a push-button operation of a numeric key 5aa. Specifically, in order to reduce the probability that a person who does not know the security code accidentally inputs the correct security code is operated by combining a plurality of numeric keys 5aa.
A password having a bit number corresponding to a four-digit number, such as 51, 6178, 3234, or 0924, is input in correspondence with the numeric key 5aa.

The password input means 5 shown in FIG.
Is composed of two push buttons 5b and 5c.
A predetermined bit, for example, a 4-bit password code is input by a combination of the pressing order of the two push buttons 5b and 5c.
Specifically, assuming that one push button 5b is 1 and the other push button 5c is 2, “1211”, “2121”, “1122”,
An input is made such as “2212”.

The password input means 5 shown in FIG.
Is composed of one push button 5d, and the password is input by a combination of the length of time for which the one push button 5d is pressed. Specifically, "long and short and short"
"Short / short / long", "long / short / long", "short / long / short" and the like are input.

In the security code input means 5 shown in FIG. 2C, since the time for pressing the push button 5d by the operator varies, the signal input by the push button 5d is temporarily stored, and this stored signal is stored. The length of the signal is determined by comparing the time length of the signal with the time of a preset threshold value. That is, if the time length of the signal input by the push button 5d is shorter than the threshold value, the signal is determined to be a short signal,
If it is longer than the threshold value, it is determined as a long signal. Then, the determined signal is input to the control means 7 as a fixed long / short signal by waveform shaping.

The storage means 6 includes collation data storage means 6a,
It comprises an ID code storage means 6b and a password code storage means 6c. The storage means 6 also includes a ROM in which fixed data such as an operation program is stored. The collation data storage means 6a stores, for example, an electrically rewritable E
It is composed of a non-volatile memory such as an EPROM or a flash memory, and stores collation data (collation password for collation) for determining whether the security code input from the security code input means 5 is valid. .

The ID code storage means 6b is, for example, a ROM
The ID code of each transmitter 1 is stored. As the ID code, for example, a code obtained by encoding a serial number assigned to each transmitter 1 at the time of manufacturing is used.

The secret code storage means 6c is, for example, a RAM
And electrically rewritable EEPROM such as volatile memory
M, a nonvolatile memory such as a flash memory,
The personal identification code input from the personal identification code input means 5 is stored. Incidentally, the password code storage means 6c can also be constituted by a buffer circuit or the like which temporarily stores the input password code of a predetermined bit.

The control means 7 includes a secret code writing means 7a,
It comprises a timekeeping means 7b, a collation determination means 7c, a transmission data sending means 7d, and an activation control means 7e. Each time a password is input from the password input unit 5 while the power is supplied from the battery 4, the password code writing unit 7a stores the password including the pressing order in the password storage unit 6c. Each time a personal identification code of a predetermined bit is written, a write end signal is output to the collation determination means 7c.

The timekeeping means 7b is set when any one of the push buttons of the password input means 5 is pressed in a state where power is supplied from the battery 4, and starts timekeeping.
The timer is reset every time the timer set to the maximum time allowed for the password input operation elapses. The timer 7b outputs a time-up signal to the activation controller 7e when the timer has elapsed and the timer has been reset.

The collation judging means 7c compares the password stored in the security code storage means 6c with the collation data stored in the collation data storage means 6a when the write end signal is inputted from the security code writing means 7a. To determine whether or not the input personal identification code is valid. The collation determining means 7c outputs a coincidence signal to the transmission data sending means 7d when the password and the collation data match. On the other hand, when the password does not match the collation data, a mismatch signal is output to the activation control means 7e.

The transmission data transmission means 7d transmits the ID code stored in the ID code storage means 6b to the transmitter 9 when a coincidence signal is input from the collation determination means 7c. When the transmission data transmitting means 7d transmits predetermined data to the transmitter 9, the transmission data transmitting means 7d sends a transmission end signal to the activation control means 7d.
e.

The activation control means 7e is activated when any one of the push buttons of the personal identification code input means 5 is operated.
Power is supplied from the battery 4 to the components of the control means 7 and the transmitter 9 except for e, and the transmitter 9 is activated. Also, the activation control means 7e
Means that a time-up signal is input from the timekeeping means 7b, a non-coincidence signal is input from the collation determination means 7c, or a transmission end signal is input from the transmission data transmission means 7d. The power supply from the battery 4 to the components of the control means 7 except the activation control means 7e and the transmitter 9 is cut off to stop the activation.

The transmitter 9 transmits and transmits a transmission message including the ID code of the transmitter 1 from the transmission data transmission means 7d by radio (for example, infrared rays or radio waves).

The receiving means 2 comprises the receiver 11, the storage means 1
2. It comprises a control means 13 and an external output means 14 serving as an interface. The receiver 11 receives a transmission message transmitted and output from the transmitter 9 of the transmitter 1, demodulates the received signal, and converts it into digital data. The power supply to each part of the receiving means 2 is supplied from an indoor wiring or from a dry cell when applied to a living room or a house in an office, and is supplied from a battery when applied to an automobile.

The storage unit 12 is a storage unit for receiving data.
a, collation data storage means 12b, entry history storage means 12
c. The storage means 12 also includes a ROM in which fixed data such as an operation program is stored. The reception data storage unit 12a is composed of, for example, a volatile memory such as a RAM or a nonvolatile memory such as an electrically rewritable EEPROM or a flash memory, and stores reception data based on a transmission message transmitted and output from the transmitter 1. Is done. Incidentally, the reception data storage means 12a
It is also possible to use a buffer circuit or the like that temporarily holds input received data.

The collation data storage means 12b is composed of, for example, an electrically rewritable nonvolatile memory such as an EEPROM or a flash memory, and determines whether or not the received data (ID code) received by the receiver 11 is valid. Collation data (a collation ID code of an available transmitter) for judging whether or not the collation is performed is stored.

The entry history storage means 12c is, for example, a nonvolatile memory such as an electrically rewritable EEPROM, a flash memory, a floppy disk or the like, which retains its contents even when the power is turned off. ”, ID at 9:00 AM
The entry time for each code is stored as data indicating the entry history.

The control means 13 includes a reception data writing means 13
a, collation determination means 13b, and data update means 13c. The reception data writing means 13a
Each time the received data is input from No. 1, the received data is written and stored in the received data storage means 12a, and every time predetermined received data is written, a write end signal is output to the collation determination means 13b. I have.

The collation judging means 13b compares the received data stored in the received data storage means 12a with the collation data stored in the collation data storage means 12b when the write end signal is input from the received data writing means 13a. To determine whether the received data is valid. The collation determining means 13b sends the received data stored in the received data storage means 12a to the data updating means 13c when the received data and the collated data match. The collation judging means 13b outputs a coincidence signal to the external output means 14 when the received data and the collation data match.

The external output means 14 includes a collation determination means 13b
When the coincidence signal is input from the control unit 3, for example, a drive control signal for permitting unlocking or locking of the door of the living room is output to the driving unit 3.

The data updating means 13c includes the collation judging means 1
The entry history based on the reception data input from 3b is written and updated in the entry history storage unit 12c in addition to the entry history stored so far.

The driving means 3 unlocks, for example, a door of a living room in accordance with a driving control signal input from the collation determining means 13b of the receiving means 2 via the external output means 14.

Next, the operation of the security system according to the first embodiment configured as described above will be described with reference to the flowchart of FIG.

First, in the state where the control means 7 of the transmitter 1 is sleeping (SP1), when any one of the push buttons of the password input means 5 is pressed (SP2-Yes), each part of the control means 7 is transmitted from the battery 4. Is supplied to the controller and the control means 7 is activated (SP3). At this time, power is also supplied from the battery 4 to the transmitter 9. In this state, the timer of the timer 7b is set (SP4). Then, when a password is inputted by the push-button operation of the password input means 5 (SP5-Yes), the password is stored in the password storage means 6c including the pressing order by the password writing means 7a. Is performed (SP6).

Here, there is no push button operation after the timer is set (SP5-No), and when the timer time elapses (SP7-
Yes), the power supply to each part of the control means 7 is cut off, and the control means 7 sleeps (SP1). At this time, the power supply from the battery 4 to the transmitter 9 is also cut off. Thereby, consumption of the battery 4 is reduced.

When the input of the password by the push button operation is completed (SP8-Yes), the collation judging means 7c
Compares the security code input by the security code input means 5 with the matching data stored in the matching data storage means 6c, and determines whether or not the pressing order of the security code is correct (SP).
9).

Thus, if it is determined that the pressing order of the security code by the security code input means 5 is correct (SP9-Y
es), an ID code is transmitted and output from the transmitter 1 (SP10). On the other hand, if it is determined that the pressing order of the security code by the security code input means 5 is incorrect (SP
9-No), the power supply to each part of the control means 7 is cut off and the control means 7 sleeps (SP1). At this time, the power supply from the battery 4 to the transmitter 9 is also cut off.

When the transmission output from the transmitter 1 ends (SP11-Yes), the power supply to each part of the control means 7 is cut off and the control means 7 sleeps (S11).
P1). At this time, the power supply from the battery 4 to the transmitter 9 is also cut off.

The receiving means 2 waits for reception (SP2
When the transmission message transmitted from 1) is transmitted from the transmitter 1 (SP22-Yes), the transmission message is demodulated and converted into digital data, and stored in the reception data storage unit 12a as reception data (SP23). .

Then, the collation judging means 13b compares the received data (ID code) stored in the received data storage means 12a with the collation data stored in the collation data storage means 12b, and the contents match. It is determined whether or not it is (SP24).

Thus, if the received data and the collation data match and it is determined that the collation result is correct (SP25-
Yes), the collation determination means 13b issues an output command to the external output means 14, and the external output means 14 outputs an external output according to the output command. As a result, the driving means 3
, A drive control signal is output. The drive unit 3 unlocks, for example, the door of the living room and permits entry into the room by the drive control signal from the reception unit 2 (SP26).

In parallel with this operation, the data updating means 13c stores the entry history based on the received data at that time.
The entry history is stored and updated in addition to the entry history stored up to that time (SP26). When this process ends (SP27-Yes), the process returns to the reception waiting state (SP21).

On the other hand, if the received data does not match the collation data and the collation result is determined to be incorrect (SP25-N
o), and returns to the reception waiting state (SP21).

Therefore, according to the first embodiment, since the transmitter 1 serving as the transmitting means has the password input function for confirming the identity, each time the transmission is performed, a valid user of the transmitter is required. You can check if there is. As a result, it is possible to greatly reduce the number of accidents caused by a person who illegally obtains the transmitter by simply pressing the transmission push button, or by erroneously entering the room when the wrong transmitter is used.

When a transmission message is transmitted and output from the transmitter 1, the operation of inputting a personal identification code by a push-button operation of the personal identification code input means 5 is indispensable. Due to the movement, there is very little possibility that the push button is operated and transmitted, so that a highly reliable transmitter can be configured.

The collation data storage means 6a and 12b for storing collation data (collation code) are composed of electrically rewritable non-volatile memories such as EEPROMs and flash memories. By changing the security code that can be used for the system, it is possible to minimize unauthorized use by copying the security code.

Next, FIG. 4 is a diagram showing a second embodiment of the present invention, and is a block diagram of a security system including a transmitter. The same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted.

In the second embodiment, the ID code of the transmitter 1 and the input personal identification code are transmitted and output, and the receiving side checks whether the personal identification code is valid or not with the ID code.

Therefore, the second embodiment is different from the first embodiment in that the collation data storage means 6 of the transmitter 1 is used.
a, the configuration in which the collation determination means 7c is deleted, and the other configuration is the same as that of the first embodiment. The receiving means 2 has almost the same configuration as that of the first embodiment. That is, the transmission data transmitting means 7d of the transmitter 1 receives the secret code stored in the secret code storage means 6c and the ID code stored in the ID code storage means 6b when the write end signal is input from the secret code writing means 7a. I
The D code is sent to the transmitter 9. Then, the transmitter 9 outputs a transmission message including the ID code and the password.

The receiving data writing means 13 of the receiving means 2
“a” stores received data including an ID code and a password received by the receiver 11 in the received data storage unit 12a. When the write end signal is input from the received data writing means 13a, the collation determination means 13b collates and determines the received data (ID code, PIN code) with the collation data.

Next, the operation of the security system according to the second embodiment will be described with reference to the flowchart of FIG.

In the second embodiment, the operation of the portion surrounded by the dashed line is the same as the operation (SP1 to SP8) of the transmitter according to the first embodiment, and the description thereof will be omitted. In SP8, when the input of the personal identification code by the push button operation is completed, the transmission message including the ID code and the personal identification code is transmitted and output from the transmitter 1 (SP31). When the transmission output from the transmitter 1 ends (SP32-Yes), the power supply to each unit of the control unit 7 is cut off and the control unit 7 sleeps (SP1). At this time, the power supply from the battery 4 to the transmitter 9 is also cut off.

The receiving means 2 waits for reception (SP4
When a transmission message transmitted and output from the transmitter 1 is received from 1) (SP42-Yes), the transmission message is demodulated and converted into digital data, and stored in the reception data storage unit 12a as reception data (SP43). .

The collation judging means 13b compares and compares the received data (ID code and password) stored in the received data storage means 12a with the collation data stored in the collation data storage means 12b. It is determined whether or not matches (SP44).

When the received data and the collation data match and the collation result is determined to be correct (SP45-
Yes), the collation determination means 13b issues an output command to the external output means 14, and the external output means 14 outputs an external output according to the output command. As a result, the driving means 3
, A drive control signal is output. The driving unit 3 unlocks the door of the living room, for example, and permits entry according to the driving control signal from the receiving unit 2 (SP46).

In parallel with this operation, the data updating means 13c stores the entry history based on the received data at that time.
In addition to the entry history stored so far, the entry history is written and updated in the entry history storage unit 12c (SP46). When this process ends (SP47-Yes), the process returns to the reception waiting state (SP41).

On the other hand, if the received data and the collation data do not match and the collation result is determined to be incorrect (SP45-N
o), the process returns to the reception waiting state (SP41).

According to the second embodiment, when a personal identification code is input by a push-button operation of the personal identification code input means 5, the personal identification code and the ID code can be transmitted and transmitted immediately. . On the receiving side, the security code and I
Since the D code is collated and matched, it cannot be used by anyone other than the legitimate transmitter owner, and since no action occurs even if the button is inadvertently pressed, [0061] and [006]
The advantage described in 2] can be utilized as it is.

FIG. 6 is a diagram showing a third embodiment of the present invention, and is a block diagram of a transmitter. The same components as those of the transmitter according to the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the third embodiment, the transmission function of the transmitter is stopped when an incorrect password is input more than a preset limit number of times. , The control means 7 includes an error number counting means 7f and an input acceptance prohibiting means 7g.

The error number counting means 7 f
c, the number of times of non-coincidence signal input as a determination result signal is counted, and when the count value continuously exceeds a preset error limit number (for example, three times), the input acceptance prohibiting means 7g is provided. Outputs error limit signal.

When the error limit signal is input from the error number counting means 7f, the input acceptance prohibiting means 7g is provided with the personal identification code input means 5 for a predetermined time (for example, three minutes) from that point.
An input reception prohibition signal for prohibiting input reception by the push button operation is output to the password input means 5.

Next, the operation of the transmitter according to the third embodiment will be described with reference to the flowchart of FIG. In the example shown in FIG.
In this case, the password input reception suspension time when the number of times exceeds the error limit is set to 3 minutes.

In the third embodiment, the operation of the portion surrounded by the dashed line is the same as the operation (SP1 to SP9) of the transmitter according to the first embodiment, and the description thereof will be omitted. In SP9, when it is determined that the order of pressing the security code by the security code input means 5 is correct, the transmitter 1 transmits and outputs the ID code (SP5).
1). At this time, the personal identification code may be transmitted and output together. When the transmission output from the transmitter 1 ends (SP-52-Yes), the power supply to each unit of the control unit 7 is cut off and the control unit 7 sleeps (SP1). At this time, the power supply from the battery 4 to the transmitter 9 is also cut off.

On the other hand, it is determined that the order of pressing the security code by the security code input means 5 is incorrect (SP9-No),
If the number of errors in the pressing order of the personal identification code exceeds three consecutive times (SP53-Yes), the input acceptance by the personal identification code input means 5 is prohibited for three minutes (SP54). Then, when the input acceptance prohibition time elapses 3 minutes (SP55-Ye
s) Return to SP1. If the number of errors in the security code is three or less (SP53-No), the process returns to SP9, compares the security code that is subsequently input with the verification data, and determines whether or not the pressing order of the security code is correct. .

According to the third embodiment, if an incorrect security code is continuously input, the security code input means 5 is prohibited from accepting the security code input for a certain period of time. Erroneous transmission including the above can be reduced.

Next, FIG. 8 is a diagram showing a fourth embodiment of the present invention, and is a block diagram of a receiving means. still,
The same components as those of the receiving means 2 in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the fourth embodiment, a transmitter according to any one of the first to third embodiments is used as a transmitting means. When the transmitter according to the first embodiment is employed, the collation on the receiving side is an ID code. When the transmitter according to the second embodiment is employed, the collation on the receiving side is performed using an ID code and a password. Further, when the transmitter according to the third embodiment is employed, the matching is performed according to the transmission message of the transmitter.

In the fourth embodiment, an alarm is output when it is determined on the receiving side that a transmission message containing an incorrect password has been received from the transmitter a predetermined number of times or more.
In the configuration of the receiving means 2 of the embodiment, the control means 13
Has a collation mismatch number counting means 13d, and the alarm means 15 is connected to the collation mismatch number counting means 13d.

The number-of-coincidence-of-coincidence counting means 13d counts the number of times of input of the non-coincidence signal inputted as the judgment result signal from the collation judging means 13b, and the counted value is set to a predetermined number of times of collation mismatch (for example, three) , A warning control signal for operating the warning means 15 is output. The warning means 15 is composed of, for example, a buzzer or the like, and outputs a warning by a warning control signal from the number-of-mismatching-counters 13d.

Next, the operation of the receiving means according to the fourth embodiment will be described with reference to the flowchart of FIG. still,
In the illustrated example, the maximum number of times of collation mismatch is set to three.

In the fourth embodiment, the operation of the part surrounded by the dashed line is the receiving means 2 according to the first embodiment.
(SP21 to SP25), the description is omitted. In SP25, the received data storage unit 1
When the received data (the personal identification code and the ID code) stored in the reference data 2a and the verification data stored in the verification data storage unit 12b match with each other and the verification result is determined to be correct, the reception unit 2 sends the data to the driving unit 3. In response, a drive control signal is output. The driving unit 3 permits the entrance by unlocking the door of the living room, for example, by the driving control signal from the receiving unit 2 (S
P61).

In parallel with this operation, the data updating means 13c updates the entry history based on the received data at that time.
In addition to the entry history stored so far, the entry history is written and updated in the entry history storage means 12c (SP61). When this process ends (SP62-Yes), the process returns to the reception waiting state (SP21).

On the other hand, the received data and the collation data do not match, and the collation result is determined to be incorrect (SP25-N
o), when the number of times of this mismatch exceeds three consecutive times (SP63-Yes), a warning is output from the warning means 15 (SP64). If the number of verification mismatches is three or less (SP63-No), the process returns to SP24, where the subsequently received data is compared with the verification data to determine whether the received data is correct.

According to the fourth embodiment, when received data that does not match is continuously input, it is possible to notify by a warning that there is an error in the received data, and a malfunction including incorrect input is performed. Can be reduced.

If the receiving means 2 having the above-described configuration is provided, for example, indoors and outdoors, the present invention can be applied to an entry / exit management system that records entry / exit based on the output received by each receiving means 2. Can be. In this case, each of the receiving means 2 is arranged so as not to receive an unnecessary signal so as to distinguish the indoor receiving means from the outdoor receiving means, and to reduce the transmission output of the transmitter 1 serving as the transmitting means. Processing is performed.

[0094]

As described above, according to the present invention,
Since the transmitter has a function of inputting a personal identification code for confirming the identity by a push-button operation, it is possible to confirm whether the transmitter is a valid user every time transmission is performed. As a result, it is possible to greatly reduce the number of accidents caused by a person who illegally obtains the transmitter by simply pressing the transmission push button, or by erroneously entering the room when the wrong transmitter is used.

Further, when transmitting a transmission message from the transmitter, since the operation of driving the personal identification code by the push button is indispensable, for example, the movement of the body in the pocket may cause the push button to be pushed without permission. There is also very little risk of being operated and transmitted, and a highly reliable transmitter or system can be configured.

According to the third aspect of the invention, if an incorrect password is continuously input, the reception of the password is prohibited for a certain period of time, so that erroneous transmission including an unauthorized input is reduced. be able to.

According to the sixth aspect of the present invention, if received data that does not match is continuously input, it is possible to notify by a warning that there is an error in the received data, thereby reducing malfunctions including incorrect input. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram of a security system including a transmitter according to a first embodiment of the present invention.

FIGS. 2A to 2C are diagrams showing a specific configuration of a password input unit in the transmitter of the present invention.

FIG. 3 is a flowchart for explaining the operation of the security system according to the first embodiment of the present invention;

FIG. 4 is a block diagram of a security system including a transmitter according to a second embodiment of the present invention.

FIG. 5 is a flowchart for explaining the operation of the security system according to the second embodiment of the present invention;

FIG. 6 is a block diagram of a transmitter showing a third embodiment of the present invention.

FIG. 7 is a flowchart illustrating the operation of a transmitter according to a third embodiment of the present invention.

FIG. 8 is a block diagram of a receiving unit according to a fourth embodiment of the present invention.

FIG. 9 is a flowchart illustrating the operation of a receiving unit according to a fourth embodiment of the present invention.

FIG. 10 is a block diagram showing a conventional system configuration using a transmitter.

FIG. 11 is a block diagram showing a conventional system configuration using another configuration using a transmitter.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Transmitter (transmission means), 2 ... Reception means, 3 ...
Driving means, 5: PIN code input means, 6a: collation data storage means, 6b: ID code storage means, 6c: PIN code storage means, 7: control means (CPU), 7a: PIN code writing means, 7b: timekeeping Means, 7c ... collation determination means, 7
d: transmission data sending means, 7e: activation control means, 7f ...
Error count means, 7g: Input acceptance prohibiting means, 9: Transmitter, 11: Receiver, 12a: Received data storage means, 12
b: verification data storage means, 12c: entry history storage means,
13: control means (CPU), 13a: received data writing means, 13b: collation determination means, 13c: data updating means,
13d: verification mismatch counting means, 14: external output means, 1
5. Alarm means.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location H04Q 9/00 311 H04Q 9/00 311Q 311N

Claims (6)

[Claims] 1. A security code input means for inputting a security code by a pushing operation of a push button, and the security code input by the security code input means is compared with predetermined collation data to determine whether the contents match. And a transmitter that transmits and outputs a transmission message including an ID code when a determination signal indicating that the personal identification code matches the verification data is input from the verification determination unit. A transmitter comprising: 2. A security code input means for inputting a security code by a pushing operation of a push button, and the security code input by the security code input means is compared with predetermined collation data to determine whether the contents match. And transmitting a transmission message including the password and the ID code when a determination signal indicating that the password coincides with the verification data is input from the verification determining unit. A transmitter, comprising: a transmitter for outputting. 3. A security code input means for inputting a security code by a pushing operation of a push button, and a security code input by the security code input means is collated with preset collation data to determine whether the contents match. Collation judging means for judging whether or not the number of times the password code and the collation data are judged to be inconsistent by the collation judging means; and When the counted number of times is counted, an input acceptance prohibiting unit that prohibits the input of the input by the personal identification code input unit for a predetermined time, and a determination signal indicating that the personal identification code and the verification data match from the verification determining unit. A transmitter for transmitting a transmission message including the password and the ID code when the password is input. 4. The transmitter according to claim 2 or 3, a receiver for receiving a transmission message transmitted and output from the transmitter, and the personal identification code and the ID code included in the reception data received by the receiver. Collation determination means for collating with predetermined collation data to determine whether or not the contents match; and a collation signal from the collation determination means indicating that the security code and ID code match the collation data. A receiving unit having an output unit for outputting an operation signal when input. 5. A security code input means for inputting a security code by a pushing operation of a push button, a security code holding means for holding a security code input by the security code input means, and a security code held by the security code holding means. A transmitter for transmitting and outputting a transmission message including the personal identification code and the ID code, a receiver for receiving a transmission message transmitted and output from the transmitter, and receiving data received by the receiver. Collation determining means for comparing the included security code and ID code with predetermined collation data to determine whether or not the contents match; and, from the collation determining means, the security code and ID code and the collation data. Receiving means having an output means for outputting an operation signal when a determination signal indicating that the two match is input. Utility system. 6. The collation mismatch counting means for counting the number of times when it is determined that the password and the collation data included in the received data do not match, and the collation mismatch counting means includes a predetermined limit. The security system according to claim 4, further comprising: an alarm unit that outputs an alarm signal when the number of times is counted.