JP5222980B2 - Mobile terminal authentication system and mobile terminal authentication method - Google Patents

Description

  The present invention relates to a mobile terminal authentication system including a mobile terminal and a data transmitter that transmits authentication data to the mobile terminal, and a mobile terminal authentication method in the mobile terminal authentication system.

  As a data transmitter constituting the portable terminal authentication system, one having a function for preventing battery consumption has been proposed.

  For example, when a change in the transmission code is detected, a means for resetting a counter that operates during transmission is provided, and the transmission code output is permitted and prohibited depending on the comparison result between the counter value and the set time. There is an infrared data transmitter (Patent Document 1).

  According to this infrared data transmitter, when the operation key is kept pressed for a certain period of time, the current flowing to the infrared LED that outputs the transmission code can be suppressed, and the object is left on the remote control transmitter. The battery can be prevented from being consumed even when

  In addition, there is a technique for reducing power consumption by determining whether a signal transmitted from the transmitter side is invalid or not by bidirectional transmission and reception communication (Patent Document). 2).

JP-A-6-153281 JP-A-11-341573

  However, in Patent Document 1, when security data or the like is transmitted, if the operation key is pressed even when not communicating with the mobile terminal, the security data is transmitted as many times as necessary.

  For this reason, for example, when the transmitter is lost, the security data may be intercepted by being used by a third party.

  In addition, when a small battery such as a lithium battery is used as the power source, even if a meaningless operation key is pressed other than during communication with the mobile terminal, the infrared LED is emitted and security data is transmitted, which is useless. Electricity is consumed.

  On the other hand, in Patent Document 2, since a receiving circuit is required on the transmitter side, it cannot be applied to a device having only a transmitting circuit.

  Therefore, an object of the present invention is a mechanism capable of preventing wasteful power consumption of the data transmitter and preventing interception of authentication data transmitted from the data transmitter to the mobile terminal by a third party. Is to provide.

  Another object of the present invention is to provide an infrared data transmitter and an infrared data transmission method capable of preventing wasteful power consumption and preventing transmission data from being intercepted by a third party. It is in.

  To achieve the above object, the present invention provides a mobile terminal authentication system comprising a mobile terminal and a data transmitter for transmitting authentication data to the mobile terminal, wherein the data transmitter When ON operation data is sent from the ON switch means for starting transmission and the ON switch means, the ON operation interval of the ON switch means is compared with a predetermined time, The authentication data stored in a predetermined storage area in advance based on determination means for determining whether the operation is valid, on-operation data sent from the on-switch means, and a determination result by the determination means Transmission control means for determining whether or not to transmit, and when the transmission control means determines to transmit the authentication data, the authentication data is transmitted to the portable terminal Based on the ON operation data sent from the ON switch means, the invalid mode setting means for setting the operation of the ON switch means to the invalid mode, and the ON operation data sent from the ON switch means And an invalid mode canceling unit for canceling the invalid mode set by the invalid mode setting unit, and when the ON operation data is sent from the ON switch unit, the determining unit It is determined whether or not the mode is set, and when it is determined that the invalid mode is not set, the ON operation interval of the ON switch means is compared with a predetermined time, While determining whether or not the ON operation is valid, the mobile terminal receives and authenticates the authentication data transmitted from the data transmitter It is characterized in.

  Further, the present invention is a mobile terminal authentication system comprising a mobile terminal and a data transmitter that transmits authentication data to the mobile terminal, the data transmitter for starting transmission of the authentication data On-switch means, invalid mode setting means for setting the operation of the on-switch means to an invalid mode based on on-operation data sent from the on-switch means, and on-operation data sent from the on-switch means On the basis of the invalid mode canceling means for canceling the invalid mode set by the invalid mode setting means, and whether or not the invalid mode is set when the ON operation data is sent from the ON switch means. Based on the judgment means for judgment, the ON operation data sent from the on-switch means and the judgment result by the judgment means, Transmission control means for determining whether or not to transmit the authentication data stored in the storage area, and when the transmission control means determines to transmit the authentication data, the authentication data is directed to the portable terminal. A data transmission unit for transmitting, wherein the portable terminal receives and authenticates the authentication data transmitted from the data transmitter.

  According to the present invention, when ON operation data is sent from the ON switch means, the ON operation interval of the ON switch means is compared with a predetermined time, and it is determined that the ON operation data is not an effective ON operation. Does not transmit authentication data from the data transmitter to the portable terminal.

  As a result, when the meaningless on-switch means is pressed, the transmitter can be made inoperable, and wasteful power consumption due to invalid operations can be prevented.

  Further, when not in use, by setting the operation of the on-switch means to the invalid mode based on the on-operation data sent from the on-switch means, the authentication data is not transmitted from the data transmitter to the portable terminal. To do.

  As a result, when the meaningless on-switch means is pressed, the transmitter can be made inoperable, and wasteful power consumption due to invalid operations can be prevented. Moreover, since the set invalid mode is not canceled until the user performs a predetermined cancel operation, the authentication data can be prevented from being intercepted by a third party, and the information stored in the mobile terminal can be protected. .

It is a perspective view of the infrared data transmitter which comprises the portable terminal authentication system which is an example of embodiment of this invention. It is a perspective view which shows the communication state of the portable terminal authentication system comprised from the infrared data transmitter of FIG. 1, and a portable terminal. It is a control block diagram of an infrared data transmitter. It is explanatory drawing for demonstrating an example of the invalid setting process by the invalid mode setting means of the infrared data transmitter shown in FIG. FIG. 4 is an explanatory diagram for explaining an example of processing by a determination unit of the infrared data transmitter illustrated in FIG. 3, in which (a) indicates that the ON operation interval exceeds the determination time, and (B) indicates that the ON operation interval is the determination time. This is the case. It is explanatory drawing for demonstrating an example of the invalid setting cancellation | release by the invalid mode cancellation | release means of the infrared data transmitter shown in FIG. It is a flowchart for demonstrating an example of operation | movement of the infrared data transmitter shown in FIG. It is a control block diagram for demonstrating the modification of an infrared data transmitter.

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

  As shown in FIGS. 1 and 2, the mobile terminal authentication system according to the present embodiment is configured such that authentication data (infrared data) is transmitted from the window 24 of the infrared data transmitter 23 by turning on the on-switch means 1 of the infrared data transmitter 23. ) 25 is transmitted to the portable terminal 26 such as a handy terminal. The portable terminal 26 receives the authentication data transmitted from the infrared data transmitter 23 and performs an authentication process.

  FIG. 3 shows a control system of the infrared data transmitter 23. The control system includes a transmission control unit 3, an invalid mode canceling unit 5, and an infrared control unit 7. The transmission control unit 3 includes a determination unit 4a and an invalid mode setting unit 4b.

  When the on-switch means 1 is pressed, the logic level “1” (hereinafter referred to as “H”) having a high voltage level due to the pull-up resistor 2 is turned off. The signal is switched to a logic signal (ON operation signal) of value “0” (hereinafter referred to as “L”), and is output to the transmission control means 3, the invalid mode canceling means 5 and the infrared control means 7.

  Hereinafter, for convenience of explanation, the invalid mode setting unit 4b, the determination unit 4a, the infrared control unit 7, and the invalid mode release unit 5 will be described in this order.

  The invalid mode setting unit 4 b sets the operation of the on switch unit 1 to the invalid mode based on the data of the on operation signal sent from the on switch unit 1. A specific example is shown in FIG.

  FIG. 4 shows a state where the ON operation signal of the ON switch means 1 is input n times within the measurement time T (sec).

  In this embodiment, the ON switch number 1 of the ON switch means 1 within the measurement time T is compared with a predetermined set number X, and when the ON operation number n exceeds the set number X, the ON switch The operation of means 1 is set to the invalid mode.

  The measurement ends after the measurement time T has elapsed, and when the invalid mode is set, the operation permission signal 6 output from the determination means 4a of the transmission control means 3 to the infrared control means 7 is generated even when the ON switch means 1 is pressed. Always inactive.

  The determination unit 4a determines whether or not the invalid mode is set when the data of the ON operation signal is sent from the ON switch unit 1. When the determination unit 4a determines that the invalid mode is set, the operation permission signal 6 output to the infrared control unit 7 is maintained in an inactive state.

  On the other hand, when it is determined that the determination unit 4a is not set to the invalid mode, the ON operation interval of the ON switch unit 1 (time from the end of the previous communication to the ON operation of the current ON switch unit 1) is determined in advance. It is determined whether or not the determination time is exceeded.

  If the ON operation interval is equal to or shorter than the determination time, it is determined that stable communication is not possible, and the operation permission signal 6 output to the infrared control means 7 is set to the inactive state. On the other hand, if the on-operation interval exceeds the determination time, the on-operation is validated and the operation permission signal 6 output to the infrared control means 7 is activated.

  FIG. 5 shows an example of processing by the determination unit 4a. 5A shows a case where the ON operation interval exceeds the determination time, and FIG. 5B shows a case where the ON operation interval is equal to or less than the determination time.

  As shown in FIGS. 5A and 5B, when the ON switch means 1 is pressed, the operation signal indicates “L” (ON operation), and the operation status indicates a high level during communication.

  In FIG. 5A, when the time (ON operation interval) from the end of the first communication until the second operation signal becomes “L” (ON operation) exceeds the determination time, the operation status is Communication is started at a high level.

  On the other hand, in FIG. 5B, since the time (ON operation interval) from the end of the first communication until the second operation signal becomes “L” (ON operation) is less than the determination time, the communication is canceled. The operation status remains “L”. Here, the first on-operation signal refers to an on-operation signal that has passed for a certain period of time since the end of communication as the first on-operation signal.

  When receiving the ON operation signal from the ON switch means 1, the infrared control means 7 determines whether the operation permission signal 6 output from the determination means 4a is in an active state or an inactive state.

  When it is determined that the operation permission signal 6 is in the active state, the infrared LED (infrared light emitting unit) 9 is turned on / off in accordance with the authentication data stored in the memory (storage area) 8 in advance to display a predetermined light emission pattern. The authentication data is generated and transmitted to the portable terminal 26 (see FIG. 2).

  On the other hand, when it is determined that the operation permission signal 6 is in an inactive state, the ON operation signal sent from the ON switch means 1 is ignored. That is, the authentication data is not transmitted from the infrared data transmitter 23 to the portable terminal 26.

  The invalid mode releasing means 5 is determined in advance as data of an on operation signal sent from the on switch means 1 when the operation of the on switch means 1 is set to the invalid mode by the invalid mode setting means 4b. Compare with the release data.

  When the ON operation signal data sent from the ON switch means 1 and the release data coincide with each other, a release signal is output to the invalid mode setting means 4b and set by the invalid mode setting means 4b. The operation invalid mode of the on switch means 1 is canceled.

  FIG. 6 shows an example of invalidation cancellation processing by the invalid mode cancellation means 5. In this example, the number of times the ON operation of the on-switch means 1 is performed within a unit time is defined as one data, and a plurality of data generated by repeating this several times is defined as release data.

  As shown in FIG. 6, when the on switch means 1 is pressed, the operation signal falls from "H" to "L" and an on operation signal is output. This falling edge is used as a trigger to measure how many times the ON operation is performed within a unit time, and the data is read as many times (three times in FIG. 6) as one data.

  In the first data, the on switch means 1 is pressed three times within a unit time. In this case, since the first press of the on-switch means 1 is used as a trigger for starting reading, it is not counted, and therefore the data is determined to be 2.

  Since the on-switch means 1 is pressed twice within the unit time for the next data, the data is determined to be 1 by subtracting one time for the trigger from the second time as described above.

  Since the last switch has the ON switch 1 pressed once within a unit time, the data is determined to be 0 by subtracting one time for triggering from the same time as described above. Accordingly, the release data in this example is 210 (data is decimal).

  Next, an example of the operation of the infrared data transmitter 23 will be described with reference to FIG.

  First, when pressing of the on-switch means 1 is detected in step S1, the process proceeds to step S2.

  In step S2, it is determined from the value of the operation invalid status LOCKST (see steps S10 and S14) whether or not the operation of the on switch means 1 is set to the invalid mode. If the LOCKST value is “0”, it is a normal operation mode, if it is “1”, it is an invalid mode, and the initial value is “0”.

  If the LOCKST value is “0”, the process proceeds to step S5. If the LOCKST value is “1”, the process proceeds to step S3.

  In step S3, whether the data of the ON operation signal from the ON switch means 1 matches the release data is read in the data format described in FIG. 6, and if it matches, it is determined that the invalid mode has been released, The process proceeds to step S4. In step S4, the LOCKST value is set to “0”, and the process returns to step S2.

  On the other hand, if the data of the ON operation signal from the ON switch means 1 does not coincide with the release data in step S3, it is determined that the invalid mode has not been released, and the LOCKST value remains “1” and step S2 continues. Return to.

  In step S5, whether or not the time (on-operation interval) Ton from when the on-switch means 1 is pressed after the previous transmission exceeds a determination time Ta set in advance as a sufficient time for stable communication. Judging.

  If the time Ton exceeds the determination time Ta, the process proceeds to step S6 to transmit the authentication data. If the time Ton is equal to or less than the determination time Ta, the authentication data is not transmitted, and the on-switch means The process returns to the waiting state for pressing 1 (step S2).

  In step S7, after transmitting the authentication data in step S6, a measurement timer for setting the invalid mode is activated, and the process proceeds to step S8.

  In step S8, it is determined whether or not the on-switch means 1 is pressed. If the on-switch means 1 is not pressed, the process proceeds to step S9 to determine whether or not the measurement timer has timed out.

  If it has not timed out, the process returns to step S8 to continue the determination of pressing the on-switch means 1, and if timed out, the process returns to step S2.

  If it is detected in step S8 that the on-switch means 1 is pressed, the process proceeds to step S11, where the on-operation count of the on-switch means 1 is incremented by 1 (on-count), and the on-switch means until the measurement timer times out. The on-count of 1 on operation is continued.

  When the measurement timer expires in step S12, the process proceeds to step S13.

  In step S13, it is determined whether or not the count value n of the ON operation of the ON switch means 1 has exceeded the determination reference value (set number of times) X in the operation invalid mode.

  If the count value n is equal to or smaller than the determination reference value X, the process proceeds to step S10, the operation invalidity status is set to “0”, and the process returns to step S2. That is, the invalid mode is not set.

  On the other hand, if the count value n exceeds the determination reference value X, the process proceeds to step S14. In step S14, the operation invalidity status is set to “1” to set the invalid mode, and then communication is terminated in step S15, and then the process returns to step S2.

  As described above, in this embodiment, when the ON operation signal is sent from the ON switch means 1, when the ON operation interval of the ON switch means 1 does not exceed a predetermined determination time, Authentication data can be prevented from being transmitted from the infrared LED 9.

  Further, when not in use, the user can intentionally turn on the on switch means a plurality of times to set the operation invalid mode so that authentication data is not transmitted from the infrared LED 9.

  As a result, when the meaningless on-switch means 1 is pressed, the transmitter can be disabled, and wasteful power consumption due to invalid operations can be prevented. Further, since the set invalid mode is not canceled until the user performs a predetermined cancel operation, the authentication data can be prevented from being intercepted by a third party, and the information stored in the portable terminal 26 can be protected. it can.

  In addition, this invention is not limited to what was illustrated to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.

  For example, FIG. 8 shows an example in which a battery remaining amount detecting unit 4 c for detecting the remaining battery level based on the battery voltage 22 is added to the transmission control unit 3.

  In this example, when the battery voltage 22 is low, by reducing the determination reference value (setting number) X when setting to the invalid mode (see step S13 in FIG. 7), the power consumption when the remaining battery level is low is reduced. Can be suppressed.

DESCRIPTION OF SYMBOLS 1 ON switch means 3 Transmission control means 4a Judgment means 4b Invalid mode setting means 4c Battery residual quantity detection means 5 Invalid mode cancellation means 7 Infrared control means 9 Infrared LED
23 Infrared data transmitter 26 Mobile terminal

Claims (10)

A mobile terminal authentication system comprising a mobile terminal and a data transmitter for transmitting authentication data to the mobile terminal,
The data transmitter is
On-switch means for starting transmission of the authentication data;
When ON operation data is sent from the ON switch means, the ON operation interval of the ON switch means is compared with a predetermined time to determine whether the ON operation is valid. Judgment means,
Transmission control means for determining whether to transmit the authentication data stored in a predetermined storage area in advance based on the ON operation data sent from the ON switch means and the determination result by the determination means;
A data transmission unit that transmits the authentication data to the portable terminal when the transmission control unit determines to transmit the authentication data;
An invalid mode setting means for setting the operation of the on switch means to an invalid mode based on the on operation data sent from the on switch means;
An invalid mode releasing means for releasing the invalid mode set by the invalid mode setting means based on the on operation data sent from the on switch means,
The determination means determines whether or not the invalid mode is set when on-operation data is sent from the on switch means, and when it is determined that the invalid mode is not set. , Comparing the on-operation interval of the on-switch means with a predetermined time, to determine whether the on-operation is valid,
The mobile terminal authentication system, wherein the mobile terminal receives and authenticates the authentication data transmitted from the data transmitter. A mobile terminal authentication system comprising a mobile terminal and a data transmitter for transmitting authentication data to the mobile terminal,
The data transmitter is
On-switch means for starting transmission of the authentication data;
An invalid mode setting means for setting the operation of the on switch means to an invalid mode based on the on operation data sent from the on switch means;
An invalid mode canceling means for canceling the invalid mode set by the invalid mode setting means based on the ON operation data sent from the ON switch means;
Determining means for determining whether or not the invalid mode is set when on-operation data is sent from the on-switch means;
Transmission control means for determining whether to transmit the authentication data stored in a predetermined storage area in advance based on the ON operation data sent from the ON switch means and the determination result by the determination means;
A data transmission unit that transmits the authentication data to the mobile terminal when the transmission control unit determines to transmit the authentication data,
The mobile terminal authentication system, wherein the mobile terminal receives and authenticates the authentication data transmitted from the data transmitter.   The invalid mode setting means determines whether or not to set the invalid mode by comparing the number of on operations of the on switch means within a predetermined time with a predetermined number of times. The mobile terminal authentication system according to claim 1 or 2.   The mobile phone according to claim 3, further comprising a battery remaining amount detecting unit that detects a remaining battery level, wherein the set number of times is changed according to the detected remaining battery level detected by the remaining battery level detecting unit. Terminal authentication system.   The invalid mode canceling means determines whether to cancel the invalid mode by comparing the ON operation data sent from the ON switch means with a predetermined ON operation pattern. The portable terminal authentication system according to any one of claims 1 to 4. A mobile terminal authentication method for authenticating with a mobile terminal by transmitting authentication data to the mobile terminal,
When ON operation data is sent from the ON switch means for starting the transmission of the authentication data, the ON operation interval of the ON switch means is compared with a predetermined time, and an ON operation is performed. A determination step for determining whether or not it is valid;
A transmission determination step of determining whether or not to transmit the authentication data stored in a predetermined storage area in advance based on the ON operation data sent from the ON switch means and the determination result of the determination step;
An invalid mode setting step for setting the operation of the on switch means to the invalid mode based on the on operation data sent from the on switch means;
An invalid mode releasing step for releasing the invalid mode set by the invalid mode setting step based on the on operation data sent from the on switch means,
The determining step determines whether or not the invalid mode is set when on-operation data is sent from the on-switch means, and when it is determined that the invalid mode is not set. The ON operation interval of the ON switch means is compared with a predetermined time to determine whether the ON operation is effective or not,
When the transmission determining step determines that the authentication data is transmitted, the authentication data is transmitted to the mobile terminal by a data transmission unit. A mobile terminal authentication method for authenticating with a mobile terminal by transmitting authentication data to the mobile terminal,
An invalid mode setting step for setting the operation of the on switch means to an invalid mode based on the on operation data sent from the on switch means for starting the transmission of the authentication data;
An invalid mode releasing step for releasing the invalid mode set by the invalid mode setting step based on the on operation data sent from the on switch means;
A determination step of determining whether or not the invalid mode is set when on-operation data is sent from the on-switch means;
A transmission determination step of determining whether or not to transmit the authentication data stored in a predetermined storage area in advance based on the ON operation data sent from the ON switch means and the determination result of the determination step; Prepared,
When the transmission determining step determines that the authentication data is transmitted, the authentication data is transmitted to the mobile terminal by a data transmission unit.   In the invalid mode setting step, it is determined whether or not to set the invalid mode by comparing the number of ON operations of the ON switch means within a predetermined time with a predetermined number of times. The mobile terminal authentication method according to claim 6 or 7.   9. The portable device according to claim 8, further comprising a battery remaining amount detecting step for detecting a remaining battery amount, wherein the set number of times is changed according to the detected remaining battery amount detected by the remaining battery amount detecting step. Terminal authentication method.   The invalid mode canceling step determines whether to cancel the invalid mode by comparing the on operation data sent from the on switch means with a predetermined on operation pattern. The portable terminal authentication method according to any one of claims 6 to 9.

Images