JP5129585B2 - Function release device for article monitoring device - Google Patents

Description

  The present invention relates to a function releasing device that releases a monitoring function of an article monitoring device attached to an article for preventing theft of various articles.

  In various goods stores or the like, an article monitoring device called a tag may be attached to each article in order to prevent theft of the article. This article monitoring device is attached to an article to be displayed, and if a customer tries to take an article with the article monitoring device attached to the store without completing the accounting process, a gate installed at the store entrance / exit is used. When the article monitoring apparatus tries to pass, the gate or the article monitoring apparatus emits an alarm sound to notify the store clerk, thereby preventing the article from being stolen. Further, even when the article monitoring device is illegally removed from the article, the article monitoring device emits an alarm sound to notify the store clerk.

  On the other hand, when the customer completes the accounting process for the goods to be purchased, the store clerk releases the monitoring state of the article monitoring device at the cash register etc. and removes it from the goods, and then hands over and purchases only the goods in exchange for the price. When an article passes through the gate, the gate and article monitoring device are prevented from sounding.

  When removing the article release device from the article, a dedicated function release device is used. This function canceling device has a function of stopping the sounding of the article monitoring device in which the alarm sound is sounded, and setting the state in which the alarm sound is not sounded for the article monitoring device in which the alarm sound is not sounded. When the monitoring function of the article monitoring device is released by the function release device, an alarm sound does not sound even if the article monitoring device is removed from the article (see, for example, Patent Documents 1, 2, and 3).

JP 2007-200050 A JP 2000-339557 A JP-A-8-212467

  However, if a function release device that can only be used by a store clerk is in the hands of a third party due to theft or the like, the function release device is used to release the monitoring function of the article monitoring device, so that the goods can be easily used. There is a problem that shoplifting is possible.

  In addition, since the function release device that has been illegally acquired as described above can be used not only in the store but also in other stores where the same kind of article monitoring device is used, the used function release that is no longer used When the device is put on the market, the monitoring function of the article release device can be released even by the function release device, which may increase theft damage of the article.

  On the other hand, if an ID is individually assigned to the article monitoring device, and the function release device cannot be released unless the ID is designated in the function release device, an illegally acquired function release device can be obtained at another store. Although it cannot be used, there is a problem that if the article monitoring apparatus is managed with individual IDs or the like, the article monitoring apparatus becomes expensive.

  Therefore, even if a third party illegally acquires the function release device of the article monitoring device by theft or the like, the present invention prevents the theft of the article by preventing the use of the function release device, and provides security by an economical method. The purpose is to improve the nature.

The present invention relates to a function release device for an article monitoring apparatus that releases a monitoring function of an article monitoring apparatus that is attached to the article and used to prevent theft of the article, and monitors the release signal for releasing the monitoring function. At least a handy key having a release function for transmitting to the device and a release disable function for disabling the release function, the release disable function receiving a signal from a gate installed in the store , The operation is performed by either turning off the power switch of the handy key, and even if the power is turned on after the operation of turning off the power switch, the release function cannot be operated.

  When the handy key is provided with a timer, the release disable function can be activated even when a timeout time set in the timer provided in the handy key elapses.

  The handy key includes an input unit used for inputting the handy key ID and a storage unit for storing the handy key ID. The handy key collates the handy key ID stored in the storage unit with the handy key ID input from the input unit. It is desirable to have a release enabling function that enables the release function when the IDs match.

  In the function release device of the article monitoring apparatus according to the present invention, in addition to the handy key, the function release apparatus does not have a function of sending a release signal to the article monitoring apparatus, and sends a use permission signal to the handy key to release the handy key. A master key having a release enabling function that enables the function may be provided. In this case, the master key has an input unit used for inputting a handy key ID, and the handy key ID input from the input unit is transferred from the master key to the handy key. In the handy key, the handy key is stored in the handy key storage unit. It is desirable to collate the stored handy key ID with the transferred handy key ID, and to enable the release function when both IDs match. The master key includes an input unit used for inputting the master key ID and a storage unit for storing the master key ID. The master key ID input from the input unit and the master key ID stored in the storage unit are provided. It is desirable to make the master key release enabling function operable when both IDs match.

  The master key is preferably provided with a dedicated charging unit for charging the handy battery. In this case, the charging unit preferably includes a master signal transmission unit that transmits a signal to the handy key.

  It is desirable that the handy key release disable function is activated even when the power supply capacity of the handy key battery drops below a predetermined value. Further, it is desirable to sound the buzzer when the handy key release enabling function is activated or when the handy key release disabling function is activated. In this case, it is desirable that the buzzer continues to sound after the handy key release disable function is activated until the release function is enabled.

  Furthermore, it is desirable that the handy key is provided with an internal antenna that senses the gate when passing through the gate.

  In addition to the handy key or in addition to the handy key and master key, the function canceling device of the article monitoring device of the present invention is provided with a release signal for canceling the monitoring function of the article monitoring device installed at a specific location in the store. There may be a case where a desktop key having a release function for transmitting to the monitoring device is included.

Since the present invention is configured such that the release disable function is activated by receiving a signal from a gate installed in the store, when the handy key is taken out of the store or brought into the store, the handy key The release function becomes inoperable, and the monitoring function of the article monitoring apparatus cannot be released using the handy key. Also, the disabling function is activated by turning off the power switch of the handy key, and even if the power is turned on after the operation of turning off the power switch, the releasing function becomes inoperable. If you turn off the power of the handy key to pass the gate without taking notice of the store clerk and take the handy key, even if the power is turned on after that, it remains unreleasable, so that it can be released I can't. Therefore, even if the handy key is taken out illegally, the function of the article monitoring device is canceled by the handy key, and the article can be prevented from being stolen. In addition, it is economical because there is no need to attach an ID or the like to each item monitoring device.

  If the handy key is equipped with a timer, and the release disable function is activated when the timeout time set in the timer provided inside the handy key elapses, if a predetermined timeout time is set in the timer, Even if a handy key is taken out of the store, the handy key release function will automatically become inoperable after the timeout period has elapsed, so use the handy key to release the monitoring function of the article monitoring device. Can not.

  The handy key includes an input unit used for inputting the handy key ID and a storage unit for storing the handy key ID. The handy key is collated with the handy key ID stored in the storage unit and the handy key ID input from the leading unit. If the ID is matched, it has a release enabling function that enables the release function. Even if the handy key is illegally taken out, the release function is changed from an inoperable state to an operable state without knowing the handy key ID. Since it cannot be transferred, safety is increased.

  Separately from the handy key, it does not have a function to send a release signal to the article monitoring device, and has a release enabling function to send a use permission signal to the handy key to enable the handy key release function. If the master key is provided, even if the handy key is taken out illegally, the master key is required to enable the handy key release function, and thus the security is further improved.

  The master key has an input unit used for inputting a handy key ID, the handy key ID input from the input unit is transferred from the master key to the handy key, and the handy key stored in the handy key storage unit When the ID and the transferred handy key ID are collated, and both IDs match, the release function is enabled. To enable the disabled release function, the master key is used and the handy key is used. Since it is necessary to know the ID, the security is further improved.

  The master key includes an input unit used for inputting the master key ID and a storage unit for storing the master key ID. The master key ID input from the input unit is compared with the master key ID stored in the storage unit. If the IDs match, enabling the master key release enabling function can prevent the master key from being used illegally.

  If the master key is equipped with a dedicated charging unit for charging the handy key battery, the handy key can only be charged with the master key, so even if the handy key is illegally taken out, it will be illegally charged and handy. The key can be prevented from being used.

  When the charging unit is provided with a master signal transmission unit that transmits a signal to the handy key, the handy key can be charged and a signal to the handy key can be transmitted, thereby improving operability.

  If the disabling function is activated when the power supply capacity of the handy key battery is reduced, even if the handy key is taken out, the monitoring function of the article monitoring device cannot be canceled over time.

  If the buzzer is sounded when the release enabling function is activated, the store clerk can easily confirm that the release signal can be transmitted from the handy key to the article monitoring apparatus.

  If the buzzer is sounded when the release disable function is activated, the store clerk can grasp that the handy key has been taken out illegally, used illegally, or timed out.

  If the buzzer continues to sound until the release function is enabled after the disable function is activated, it will be easier for the store clerk to know that the handy key has been taken out or used illegally. The person who tried to take the handy key out of the store can be identified.

  If the handy key is provided with an internal antenna that senses the gate when passing through the gate, the gate can be sounded when the handy key is illegally taken out, and the store clerk can be surely notified.

  As described above, the present invention can reliably prevent the article from being stolen by illegally releasing the monitoring function of the article monitoring device by applying multiple devices.

(1) First embodiment The handy key 1 shown in FIG. 1 has a release function for transmitting a release signal for releasing the monitoring function to the article monitoring device 2 shown in FIG. 2 and receives an external signal. It is a device having a release disable function that disables its own release function, and is pressed when a release signal is sent to the power switch 101 for turning on / off its own power supply and the article monitoring device 2 A push button 102, a light emitting unit 103 such as an LED that is turned on or off in response to the occurrence of an event, a battery housing unit 104 that houses a battery as a power source, and a battery that is housed in the battery housing unit 104 A charging terminal 105 and a sound emitting hole 106 through which a sound emitted from an internal buzzer passes are provided.

  The article monitoring device 2 shown in FIG. 2 is used by being attached to an article for the prevention of theft of the article displayed in the store, and when it is illegally removed from the article or passes through a gate provided in the store. 1 is a self-sounding article monitoring device having a monitoring function that sounds by receiving a signal from a gate, and a sound release hole 201 through which a sound emitted from an internal buzzer passes, and the handy key 1 shown in FIG. And a receiving unit 202 that receives a release signal transmitted from. The frequency of the signal transmitted from the gate is, for example, 22 kHz, 31.5 kHz, 37.5 kHz, 8.2 MHz, 10.5 MHz, or the like. Magnetic signals can also be used.

  The desktop key 3 shown in FIG. 3 is used by being installed at a specific place such as a cash register of a store, and the monitoring function of the article monitoring apparatus 2 is provided by sending a release signal to the article monitoring apparatus 2. A function that has a release function to release, and prevents the alarm sound from sounding when the article monitoring device 2 is removed from the article by this release function, and to stop the alarm sound from sounding when the alarm sound is sounding It is a release device. The desktop key 3 is released from the display unit 301 for displaying operation guidance, the input unit 302 used for inputting various numbers, the fixed unit 303 fixed to a cashier counter, and the like and the article monitoring device 2. A release signal transmission unit 304 that transmits a signal. A commercial power source can be used as the power source of the desktop key 3.

  The master key 4 shown in FIG. 4 is used by being placed in a place where outsiders cannot enter such as a store office, and a display unit 401 for displaying operation guidance and the like, and input of various numbers, etc. And a dedicated charging unit 403 used for charging the handy key 1 that houses and charges the handy key 1. As shown in FIG. 5, the charging unit 403 can accommodate and charge a plurality of handy keys 1. A commercial power source can be used as the power source for the master key 4. Unlike the desktop key 3, the master key 4 does not have a function of sending a release signal to the article monitoring device 2, but can be released to send a use permission signal for operating the release function of the handy key 1. It has a function.

  In the first embodiment described here, the function release device of the article monitoring device is configured by the handy key 1 shown in FIG. 1, the desktop key 3 shown in FIG. 3, and the master key 4 shown in FIG. Is done. However, the desktop key 3 is not essential. The release function of the handy key 1 becomes operable when a use permission signal is given from the master key 4, but the handy key 1 itself may have a function of enabling the release function.

  As shown in FIG. 6, in addition to the components shown in FIG. 1, the handy key 1 includes a battery 111 housed in the charging unit 403 of the master key 4 and charged, and the power switch 101 shown in FIG. A power source detection unit 112 that detects the power state of the battery 111 and the power source capacity of the battery 111, a control unit 113 that includes a CPU that performs various controls, a storage unit 114 that includes a flash memory that stores various types of information, and a stored predetermined time A timer 115 for notifying the control unit 113 of the progress of the operation, a master signal receiving unit 116 for receiving a signal transmitted from the master key 4, and a gate for receiving a signal (gate signal) transmitted from a gate installed in the store A signal receiving unit 117, a cancellation signal transmission unit 118 that transmits a cancellation signal to the article monitoring device, and a buzzer 119 that rings when a predetermined event occurs are provided.The battery 111 is charged only by the charging unit 403 of the master key 4. The master signal receiving unit 116, the gate signal receiving unit 117, and the release signal transmitting unit 118 include an antenna, a modulation circuit, a demodulation circuit, and the like. The gate signal receiving unit 117 corresponds to the frequency and magnetism of the gate signal. The antenna inside the handy key 1 has a function of sensing the gate when the handy key 1 passes through the store gate and sounding an alarm sound from the gate. In order to prevent the handy key 1 from being modified, it is desirable that the internal circuit and the antenna or the like have an integral structure and that the structure cannot be disassembled by filling with an epoxy resin or the like.

  In addition to the components shown in FIG. 3, the desktop key 3 includes a power switch 311, a control unit 312 including a microcomputer that performs various controls, and a storage unit 313 that stores input information. .

  In addition to the components shown in FIGS. 4 and 5, the master key 4 includes a power switch 411, a control unit 412 such as a microcomputer that performs various controls, and a storage unit 413 that includes a flash memory that stores various types of information. And a master signal transmission unit 414 that transmits various signals to the handy key 1. The master signal transmission unit 414 may be configured to be electrically connected to the master signal reception unit 116 of the handy key 1 or may be connected in a non-contact state by infrared communication or wireless. In the example shown in FIG. 4 and FIG. 5, the charging unit 403 includes a master signal transmission unit 414. In this configuration, when the handy key 1 is set in the charging unit 403 of the master key 4. The master signal transmitting unit 414 and the master signal receiving unit 116 can exchange signals.

  In the example of the store 5 shown in FIG. 7, a pair of gates 51 for preventing theft of goods is installed at one doorway 50, so that a customer always passes between the two gates 51 when entering and leaving. It is configured. The gate 51 has a function of detecting and ringing the antenna of the handy key 1.

  A registration counter 52 is provided on one side of the entrance 50, and the desktop key 3 is fixed to the registration counter 52 by screws or the like. On the other hand, on the other side of the entrance / exit 50, there is an office 53 in which only those related to the store can go in and out, in which the master key 4 is installed. For example, the article monitoring device 2 shown in FIG. 2 is attached to each article displayed on the merchandise shelf 54. The article monitoring device 2 includes various types such as a type that is attached to an article, a type that is attached and locked to the article, and a type that is attached to the article via a wire.

  The handy key 1 shown in FIG. 1 is carried by a store clerk in the store. A store clerk in charge of the cashier counter 52 may carry the handy key 1. In this case, the desktop key 3 does not necessarily have to be installed in the cashier counter 52. A plurality of handy keys 1 are usually provided in one store, and at least one master key 4 is provided in one store. Since the master key 4 is installed in the office 53, the possibility of being stolen is very low, but it is preferable to fix it to a desk or the like.

  Hereinafter, the functions of the handy key 1, the desktop key 3, and the master key 4, the usage method thereof, and the theft of articles based on the usage will be described with reference to FIGS. A method for preventing this will be described.

  First, the function and operation of the desktop key 3 will be described with reference to the flowchart of FIG. When the power of the desktop key 3 is turned on, a message that prompts the user to input a personal identification number (desktop key ID) of the desktop key is first displayed on the display unit 301. When the desktop key ID is input from the input unit 302 (step S11), the desktop key ID stored in the storage unit 313 is checked (step S12). The desktop key 3 is in an unusable state until it matches, and the monitoring function of the article monitoring device cannot be released. For example, a desktop key ID of 0000 is stored in the storage unit 313 when the desktop key 3 is shipped. If the desktop key ID does not match even after re-entering the desktop key ID a certain number of times, the desktop key 3 may be disabled.

  If the input desktop key ID matches the desktop key ID stored in the storage unit 313 as a result of the collation in step S12, the desktop key 3 can be released and a menu screen is displayed on the display unit 301 ( Step S13). Here, the releaseable state is a state in which a release signal can be transmitted to the article monitoring device 2, in other words, a state in which the release function is operable, and an unusable state is the article monitoring device 2. In this state, the release signal cannot be transmitted, that is, the release function cannot be operated.

  On the menu screen, “Desktop key ID change” and “Function release” are displayed, and either one can be selected. When “Change Desktop Key ID” is selected by operating the input unit 302, a screen prompting the input of the current desktop key ID is displayed on the display unit 301. If the current desktop key ID is input here (step S14), the input desktop key ID and the desktop key ID stored in the storage unit 313 are collated (step S15). A screen requesting input of a new desktop key ID is displayed on the display unit 301 if they match. When a new desktop key ID is input here, the desktop key ID is overwritten and stored in the storage unit 313 (steps S16 and S17).

  On the other hand, even when “function release” is selected, a screen prompting the input of the current desktop key ID is displayed on the display unit 301. When the current desktop key ID is input here (step S18), the input desktop key ID and the desktop key ID stored in the storage unit 313 are collated (step S19). Is displayed on the display unit 301. On the other hand, if both IDs match, a release signal is sent to the article monitoring device attached to the article brought to the cash register for the customer to complete the transaction (step S20). The article monitoring apparatus 2 that has received this signal stops its own monitoring function. As a result, even if the article monitoring device is removed from the article, no alarm sound is generated. In the example shown in FIG. 7, a release signal is sent from the release signal transmission unit 304 of the desktop key 3 fixed to the cashier counter 52 to the article monitoring device 2 attached to the article to be purchased. The article monitoring device 2 can be removed from the article without making a sound.

  Next, the function and operation of the master key 4 will be described with reference to the flowchart of FIG. When the power of the master key 4 is turned on, a message for prompting the input of the master key password (master key ID) is first displayed on the display unit 401. Here, when the master key ID is input from the input unit 402 (step S21), the master key ID stored in the storage unit 413 is checked (step S22). The master key 3 cannot be used until it matches. Note that a master key ID of 0000, for example, is stored in the storage unit 413 when the master key 4 is shipped. If the master key ID does not match even after re-inputting the master key ID a predetermined number of times, the master key 4 may be disabled.

  If the input master key ID matches the master key ID stored in the storage unit 413 as a result of the collation in step S22, the master key 4 can be used and the menu screen is displayed on the display unit 401 ( Step S23). Here, the usable state is a state in which the functions “change master key ID”, “change handy key ID”, “set timeout time”, and “permit handy key use” shown in FIG. 9 are operable. . When the “handy key use permission” function is enabled, the release enabling function is enabled.

  On the menu screen displayed in step S23, “change master key ID”, “change handy key ID”, “set timeout time”, and “use permission for handy key” are displayed, and any one of them can be selected. Here, when “change master key ID” is selected by operating the input unit 402, a screen prompting the input of the current master key ID is displayed on the display unit 401. When the current master key ID is input from the input unit 402 (step S24), the control unit 412 collates the input master key ID with the master key ID stored in the storage unit 413 (step S25). ) If the two IDs do not match, the master key ID cannot be changed. On the other hand, when the two IDs match, a screen prompting the user to input a new master key ID is displayed on the display unit 401. When a new master key ID is input from the input unit 402, the master key ID is stored in the storage unit 413. Stored and the change is completed (step S26). In this way, it is requested to input the current master key ID before changing the master key ID, and the change of the master key ID is permitted only when the input master key ID matches the set master key ID. Thus, since the master key ID cannot be changed without knowing the current master key ID, it is possible to prevent the master key ID from being illegally rewritten and used.

  When “Change Handy Key ID” is selected on the menu screen displayed in step S23, a message instructing to set the handy key 1 to the charging unit 403 and to turn on the power of the handy key 1 is displayed on the display unit 401. When the handy key 1 is set in the charging unit 403 and the power switch 101 of the handy key 1 is turned on (step S27), a screen prompting the input of the current handy key ID is displayed. When the current handy key ID is input from the input unit 402, the handy key ID is transmitted from the master signal transmitting unit 414 to the handy key 1 under the control of the control unit 412 (step S28). The handy key ID may be assigned individually for each handy key, or the same handy key ID may be attached to all handy keys. In the handy key 1, as shown in FIG. 10, the handy key ID information inputted and transmitted from the master key 4 is received (step S50) and collated with the handy key ID stored in the storage unit 114 of the handy key 1. (Step S51). If the two IDs match, OK message information is created (step S52). If the IDs do not match, NG message information is created (step S53), and one of the message information is transmitted to the master key 4 (step S53). Step S54). The master key 4 receives this message information and determines whether the message is an OK message or an NG message (steps S29 and S30). If the message is an NG message, an error message is displayed on the display unit 401 (step S31). On the other hand, if the message is an OK message, a screen prompting the user to input a new handy key ID is displayed on the display unit 401. When the new handy key ID is input from the input unit 402, the handy key ID is transmitted to the handy key 1. (Step S32). As described above, when changing the handy key ID, it is necessary to know the current handy key ID, and therefore it is possible to prevent unauthorized rewriting of the handy key ID. The handy key ID changing process for the handy key 1 will be described later.

  When “Set timeout time” is selected on the menu screen displayed in step S23, a message instructing setting of the handy key 1 to the charging unit 403 and turning on the power of the handy key 1 is displayed on the display unit 401. When the handy key 1 is set in the charging unit 403 and the power switch 101 of the handy key 1 is turned on (step S33), a screen prompting input of the current handy key ID is displayed. When the current handy key ID is input from the input unit 402, the handy key ID is transmitted from the master signal transmitting unit 414 to the handy key 1 under the control of the control unit 412 (step S34). Then, in the handy key, the above-described steps S50 to S54 shown in FIG. 10 are performed, and the master key 4 receives the message transmitted from the handy key 1 and determines whether it is an OK message or an NG message (step S35). , S36), if it is an NG message, an error message is displayed on the display unit 401 (step S37). On the other hand, if the message is an OK message, the display unit 401 displays a screen that prompts the user to input a timeout time. This time-out time is a predetermined time until the power of the handy key 1 is automatically turned off or a function for disabling the release signal transmission function (release function) is activated (cannot be released function). When the time-out time is input from the input unit 402, a time-out time setting signal including time-out time information is transmitted from the master key 4 to the handy key 1 to the handy key 1 (step S38). Subsequent processing in the handy key 1 will be described later.

  When “Handy Key Usage Permission” is selected on the menu screen, a message instructing the setting of the handy key 1 to the charging unit 403 and turning on the power of the handy key 1 is displayed on the display unit 401. When the handy key 1 is set in the charging unit 403 and the power switch 101 of the handy key 1 is turned on (step S39), a screen prompting the input of the current handy key ID is displayed. When the current handy key ID is input from the input unit 402, the handy key ID is transferred from the master signal transmitting unit 414 to the handy key 1 under the control of the control unit 412 of the master key 4 (step S40). In the handy key, the processing of steps S50 to S54 in FIG. 10 is performed, and the master key 4 receives the message transmitted from the handy key 1 and determines whether it is an OK message or an NG message (steps S41 and S42). If it is an NG message, an error message is displayed on the display unit 401 (step S43). On the other hand, if the message is an OK message, a use permission signal is transmitted from the master signal transmission unit 414 to the handy key 1 under the control of the control unit 412 (step S44). Subsequent processing in the handy key 1 will be described later.

  Note that the processing related to handy key ID change, timeout time setting, and handy key use permission is performed when the handy key 1 is transferred to the charging unit 403 as long as signals can be exchanged between the master key 4 and the handy key 1. It can also be done without setting.

  Next, functions and operations of the handy key 1 will be described. As shown in FIG. 11, when any event occurs in a state where the power is turned on, the handy key 1 performs processing corresponding to each event by interrupt processing for the control unit 113, for example (step S51).

  As shown in step S28 of FIG. 9, when the current handy key ID is transmitted from the master key 4 to change the handy key ID, the handy key 1 uses the ID verification in steps S50 to S54 shown in FIG. Processing is performed (step S52). If the handy key IDs match in the verification process, a new handy key ID is transmitted from the master key 4 (step S32), so that the handy key 1 receives this and stores it overwritten in the storage unit 114. The ID change process is completed (step S53).

  As shown in step S34 in FIG. 9, when the current handy key ID is transmitted from the master key 4 for setting the timeout time, the handy key 1 uses the ID verification in steps S50 to S54 shown in FIG. Processing is performed (step S54). If the handy key IDs match in the verification process, a timeout time setting signal is transmitted from the master key 4 (step S38), so the handy key 1 receives the timeout time setting signal (step S55). The time-out time information included in the signal is stored in the timer 115 (step S56). When the time-out time information is set in the timer 115, the timer 115 is operated, and after the time-out time elapses, the release disable function of the handy key 1 is automatically operated.

  As shown in step S40 of FIG. 9, when the current handy key ID is transmitted from the master key 4 in order to make the handy key releasable, the handy key 1 performs steps S50 to S54 shown in FIG. ID collation processing is performed (step S57). If the handy key IDs match in the verification process, a use permission signal is transmitted from the master key 4 (step S44), and the handy key 1 receives this use permission signal (step S58). When this signal is received, the handy key 1 enters a state in which a release signal can be transmitted from the release signal transmission unit 118 to the article monitoring device 2, that is, a state in which the release function can be activated (a state in which release is possible) (Step S1) S59). This is the release enabling function. At this time, in order to inform the store clerk that the release enabling function has been activated and the release enable state has been entered, the control unit 113 turns on the light emitting unit 103 and rings the buzzer 119 (steps S60 and S61). On the other hand, if the IDs do not match in the ID collation process of step S57, the use permission signal is not transmitted from the master key 4, so the release function remains inoperable (cannot be released). The cancelable state or the cancelable state can be set by the value of a flag provided in the storage unit 114, for example, but is not limited to this method.

  When the push button 102 shown in FIG. 1 is pressed, the control unit 113 determines whether or not the handy key 1 is in a releasable state (step S62). And if it is a cancellation | release possible state, a cancellation | release signal will be transmitted, a cancellation | release function will be operated (step S63), and the monitoring function of the article | item monitoring apparatus 2 will be cancelled | released. Further, the control unit 113 turns on the light emitting unit 103 and rings the buzzer 119 in order to notify the store clerk that the release signal has been transmitted (steps S64 and S65). On the other hand, if the handy key 1 is in an unusable state, no release signal is transmitted.

  Even when the handy key 1 is in a releasable state in this way, the handy key 1 is turned off due to factors such as turning off the power switch 101, running out of capacity of the battery 111, elapse of the time-out time, and receiving a signal from the gate. 1 is automatically released. And even if the push button 102 is pushed in the state where the release is impossible, no release signal is transmitted. Details will be described below.

  For example, when a person tries to take the handy key 1 out of the store, the handy key 1 receives a gate signal, which is an external signal, from the gate 51 shown in FIG. Then, in the handy key 1, the disabling disable function is activated, and specifically, for example, the control unit 113 rewrites the value of the flag provided in the storage unit 114, thereby disabling the handy key 1 (step S1). In step S66, the light emitting unit 103 is caused to emit light (step S67), and an alarm sound is generated from the buzzer 119 (step S68). In this way, the handy key 1 becomes unusable immediately upon reception of the gate signal, and only the master key 4 can be brought into the releasable state, so that the handy key 1 is illegally used. Can be prevented. In addition, since this alarm sound continues to sound until a use permission signal is sent from the master key 4 to the handy key 1 and the release function of the handy key 1 becomes operable, the handy key 1 is about to be taken out. Can be ascertained by the store clerk. At this time, the gate 51 may sense the internal antenna of the handy key 1 and emit an alarm sound from the gate 51.

  If the timeout time is set in step S56, the handy key 1 is automatically disabled after the timeout time has elapsed (step S66). Specifically, when the cancelable state and the unreleasable state are controlled by the flag as described above, the timer 115 interrupts the control unit 113 when the timeout time elapses to cancel the state. Set the flag to a value that represents an impossible state. If it becomes a cancellation impossible state, the control part 113 will light the light emission part 103 (step S67), and will sound the buzzer 119 (step S68). Thus, even if the handy key 1 is taken out without receiving a gate signal by disabling the handy key 1 after the time-out period elapses, for example, a predetermined time-out time before the store opens. Is set in the timer 115, even if the handy key 1 is stolen, after the timeout time elapses, the handy key 1 cannot be released and only the master key 4 can be released. Therefore, the handy key 1 can be prevented from being brought into another store and used.

  When the power switch 101 of the handy key 1 shown in FIG. 1 is turned off, the power detection unit 112 shown in FIG. 6 detects this, and for example, the flag value of the storage unit 114 is rewritten to disable the rewrite release function. Thus, the release is disabled (step S66). The same applies to the case where the power supply capacity of the battery 111 of the handy key 1 is reduced to a predetermined value or less (step S66). In any case, when the power is turned on next time, the light emitting unit 103 is caused to emit light (step S67), and an alarm sound is emitted from the buzzer 119 (step S68). This alarm sound continues to sound unless a use permission signal is received from the master key 4 or the power is turned off. Even if the power is turned on after the power is turned off, the state remains unreleasable and cannot be made releasable unless a use permission signal is transmitted from the master key 4.

  As described above, in the present invention, even if the handy key 1 is in a releasable state, the handy key 1 becomes unusable due to a certain factor. Therefore, even if the handy key 1 is taken out illegally, the article monitoring device Can be prevented from being released.

(2) Second embodiment The handy key 6 shown in FIG. 12 has basically the same function as the handy key 1 shown in FIGS. 1 and 6, but is composed of a plurality of buttons including a numeric keypad. The input unit 60 can be used for inputting a handy key ID and a timeout time and for permitting use. The handy key 6 does not have the push button 102 in the handy key 1, but one of a plurality of buttons constituting the input unit 60, for example, the button 60 a, issues a release signal to the article monitoring device. Functions as a release button for making a call. In the handy key 6 of FIG. 12, the same reference numerals are given to portions common to the handy key 1 shown in FIGS. 1 and 6, and description thereof is omitted.

  Since the handy key 6 has an input unit 60 and a display unit 61, the handy key 6 itself performs the functions of “handy key ID change”, “timeout time setting”, and “use permission” of the master key 4 shown in FIG. The master key 4 is not necessarily required. That is, in that case, the handy key 6 is a single function release device for the article monitoring device. However, even if the handy key 6 has the input unit 60 and the display unit 61, if the handy key 6 has the master signal receiving unit 116 as in the handy key 1 of FIG. By performing the operation 4, functions such as “handy key ID change”, “timeout time setting”, and “use permission” can be realized. It is also possible to perform some of these functions with the master key 4 and perform other functions with the handy key 6. When the handy key 6 performs all the functions “change handy key ID”, “timeout time setting”, and “use permission”, the handy key 6 does not need to include the master signal receiving unit 116. Below, the case where all these functions are performed in the handy key 6 is demonstrated with reference to FIG.6, FIG12 and FIG.12.

  When any event occurs while the power is turned on, the handy key 1 performs processing corresponding to each event by interrupt processing for the control unit 113, for example (step S71). On the display unit 61, for example, items such as “handy key ID change”, “timeout time setting”, and “use permission” are displayed as menus. When “Change Handy Key ID” is selected from these items, a screen prompting the input of the current handy key ID is displayed on the display unit 61. When the handy key ID is input from the input unit 60 (step S72), the input is made. The handy key ID and the handy key ID stored in the storage unit 114 are collated (step S73). If they do not match, an error message is displayed (step S74). If they match, a new handy key ID is entered. A prompt screen is displayed on the display unit 61. When a new handy key ID is input from the input unit 60, the handy key ID is stored in the storage unit 114, and the handy key ID changing process is completed (step S75).

  When “Set timeout time” is selected on the menu screen, a screen prompting the input of the current handy key ID is displayed on the display unit 61. When the handy key ID is input from the input unit 60 (step S76), the input handy key The ID and the handy key ID stored in the storage unit 114 are collated (step S77). If they do not match, an error message is displayed (step S78). If they match, the input of the time set in the timer is prompted. A screen is displayed on the display unit 61. This time-out time is a predetermined time until the power of the handy key 6 is automatically turned off, or the function for disabling the release signal transmission function (release function) (the release disable function) is activated. When a timeout time is input from the input unit 60 (step S79), the timeout time information is stored in the timer 115 (step S80). When the time-out time information is set in the timer 115, the timer 115 is activated, and when the time-out time elapses, the release disable function of the handy key 1 is automatically activated.

  When “use permission” is selected on the menu screen, a screen prompting input of the current handy key ID is displayed on the display unit 61. When the handy key ID is input from the input unit 60 (step S81), the input handy key ID is input. And the handy key ID stored in the storage unit 114 are collated (step S82). If they do not match, an error is displayed (step S83). If they match, for example, the control unit 412 stores in the storage unit 114. By rewriting the value of the provided flag, the release function of the handy key 6 is made operable (release enable function, step S84). Then, to inform the store clerk that the handy key 6 can be released, the light emitting unit 103 is turned on (step S85) and the buzzer 119 is sounded (step S86).

  When the release button 60a among the buttons constituting the input unit 60 is pressed, the control unit 113 determines whether or not the handy key 6 is in a state where it can be released (step S87). And if it is a cancellation | release possible state, a cancellation | release signal will be transmitted (step S88) and the monitoring function of the article | item monitoring apparatus 2 will be cancelled | released. Further, the control unit 113 turns on the light emitting unit 103 (step S89) and sounds the buzzer 119 (step S90) in order to notify the store clerk that the release signal has been transmitted. On the other hand, if the handy key 1 is in a state in which it cannot be released, no release signal is transmitted. At this time, the display unit 61 may display that the release signal has not been transmitted.

  In this way, when the handy key 1 is in a releasable state, an operation to turn off the power switch 101, that the power capacity of the battery 111 has become a predetermined value or less, that a time-out period has elapsed, and that the gate signal When the cancel disable function is activated due to reception, the handy key 1 is automatically disabled (step S91). Specifically, for example, by rewriting the value of the flag provided in the storage unit 114 by the control unit 113 due to any of these factors, the handy key 1 is brought into an unreleasable state, and the light emitting unit 103 is caused to emit light ( In step S92), an alarm is sounded from the buzzer 119 (step S93). This alarm sound continues to sound until the handy key 1 release function is enabled. Even if the release button 60a is pressed in a state where the release is impossible, no release signal is transmitted. When reception of the gate signal is a factor, the gate 51 may sense the internal antenna of the handy key 6 and emit an alarm sound from the gate 51.

  If the handy key 6 becomes unreleasable by receiving the gate signal, it cannot be used even if the handy key is taken out, and it cannot be made releasable without knowing the handy key ID. It is possible to prevent the handy key 6 from being brought into another store and used.

  If the handy key 6 becomes unreleasable after the time-out period elapses, even if the handy key 6 is taken out without receiving the gate signal, if the predetermined time-out time is set in the timer 115, the handy key 6 Even if the key 6 is stolen, it becomes unusable after the time-out period has elapsed, and it cannot be made unreleasable without knowing the handy key ID, so the handy key 6 is brought into another store and used. Can be prevented.

  If the handy key 6 becomes unreleasable due to power off or the battery 111 running out of capacity, even if the power is turned on after that, it remains unreleasable. Can not be.

  The present invention is configured such that the master key controls the handy key, and the handy key controls the article monitoring apparatus, or the handy key controls the article monitoring apparatus without the master key. If it is illegally acquired, the release function that releases the function of the article monitoring device will not be activated, so that the monitoring function of the article monitoring device can be prevented from being illegally released, which is useful for preventing theft of articles. is there.

It is a perspective view which shows an example of a handy key. It is a perspective view which shows an example of an article | item monitoring apparatus. It is a perspective view which shows an example of a desktop key. It is a perspective view which shows an example of a master key. It is a perspective view which shows the state in which the handy key was accommodated in the charging part. It is a functional block diagram which shows an example of a structure of the function cancellation | release apparatus of an article | item monitoring apparatus. It is a top view which shows an example of a store layout. It is a flowchart which shows an example of the process in a desktop key. It is a flowchart which shows an example of the process in a master key. It is a flowchart which shows an example of the collation process of handy key ID. It is a flowchart which shows an example of the process in a handy key. It is a perspective view which shows the 2nd example of a handy key. It is a flowchart which shows the 2nd example of the process in a handy key.

1: Handy key 101: Power switch 102: Push button 103: Light emitting unit 104: Battery housing unit 105: Charging terminal 106: Sound emission hole 111: Battery 112: Power source detection unit 113: Control unit 114: Storage unit 115: Timer 116 : Master signal reception unit 117: Gate signal reception unit 118: Release signal transmission unit 119: Buzzer 2: Article monitoring device 201: Sound emission hole 202: Reception unit 3: Desktop key 301: Display unit 302: Input unit 303: Fixed Unit 304: release signal transmission unit 311: power switch 312: control unit 313: storage unit 4: master key 401: display unit 402: input unit 403: charging unit 411: power switch 412: control unit 413: storage unit 414: master Signal transmitter 5: Store 50: Entrance / exit 51: Gate 52: Register counter 53: Office 5 : Shelves 6: Handy key 60: Input unit 61: display unit

Claims (14)

A function release device for an article monitoring device that releases the monitoring function of the article monitoring device that is attached to the article and used to prevent theft of the article,
At least a handy key having a release function for releasing a release signal for releasing the monitoring function to the article monitoring device, and a release disable function for disabling the release function;
The release disable function is activated by both reception of a signal from a gate installed in a store and an operation of turning off the power switch of the handy key, and after an operation of turning off the power switch. The function canceling device of the article monitoring apparatus which disables the canceling function even when the power is turned on . The handy key has a timer,
The function canceling device of the article monitoring device according to claim 1, wherein the canceling disable function is activated even when a timeout time set in a timer provided in the handy key elapses. The handy key includes an input unit used for inputting a handy key ID and a storage unit for storing the handy key ID.
The handy key ID memorize | stored in the said memory | storage part and the handy key ID input from the said input part are collated, and if both ID correspond, it has the cancellation | release enable function which enables the said cancellation | release function. The function cancellation apparatus of the article | item monitoring apparatus as described in. Apart from the handy key,
A master key that does not have a function of transmitting a release signal to the article monitoring device and has a release enabling function that transmits a use permission signal to the handy key to enable the release function of the handy key. The function cancellation | release apparatus of the article | item monitoring apparatus in any one of Claims 1 thru | or 3 provided with these. The master key includes an input unit used for inputting a handy key ID,
The handy key ID input from the input unit is transferred from the master key to the handy key. In the handy key, the handy key ID stored in the storage unit of the handy key and the transferred handy key ID are transferred. The function release device of the article monitoring apparatus according to claim 4, wherein the release function is operable when both IDs match.   The master key includes an input unit used to input a master key ID, and a storage unit that stores the master key ID. The master key ID input from the input unit and the master key ID stored in the storage unit The function canceling device of the article monitoring device according to claim 4 or 5, wherein when the two IDs match, the master key canceling enabling function is operable. The function release device of the article monitoring device according to any one of claims 4 to 6, wherein the master key includes a dedicated charging unit that charges the battery of the handy key. The function release device of the article monitoring apparatus according to claim 7, wherein the charging unit includes a master signal transmission unit that transmits a signal to the handy key. The function release device of the article monitoring apparatus according to any one of claims 1 to 8 , wherein the handy key release disable function is activated even when the power supply capacity of the handy key battery drops below a predetermined value. Function cancellation apparatus of the article monitoring apparatus according to any one of claims 3 to 9 to the buzzer during the operation of the releasable function of the handy key. Function cancellation apparatus of the article monitoring apparatus according to any one of claims 1 to 10 to the buzzer during the operation of the release disabling function of the handy key. The function release device of the article monitoring device according to claim 11 , wherein the buzzer continues to ring after the handy key release disable function is activated until the release function is enabled. The function release device of the article monitoring apparatus according to any one of claims 1 to 12 , wherein the handy key includes an internal antenna that senses the gate when the gate passes. Mounted to a specific location store according to any one of the article said release signal for releasing the monitoring function of the monitoring device articles include desktop key having a release function for transmitting to the monitoring apparatus according to claim 1 to 13 Function release device for article monitoring device.

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