Security box device

Abstract

This invention provides a security box device that can reduce the workload and time required for scale validation. [Solution] In the security box device according to the present invention, when the start of scale validation is instructed, the control unit 31a checks the weight of the contents on the electronic scale 6, reads the weight of the inventory from the storage unit 31c, compares this inventory weight with the weight of the contents on the electronic scale 6, and determines whether the weight difference is within a preset tolerance range. If the weight difference is within the tolerance range, it notifies information indicating that the electronic scale 6 is functioning correctly, and if the weight difference exceeds the tolerance range, it notifies information indicating that the electronic scale 6 is not functioning correctly.

Description

Technical Field

[0001] The present invention relates to a security box device for managing stored items.

Background Art

[0002] In hospitals, drugs that require special handling, such as highly controlled drugs, are strictly stored in a lockable security box device, and only pre-authorized nurses and doctors can take out a predetermined amount and transport only the taken-out drugs to the place of use for use. However, it is not easy to accurately manage the usage history of drugs in the security box device, and in particular, there are many cases where there are no countermeasures to prevent illegal acts such as unauthorized use.

[0003] As security box devices used in such drug management operations, Patent Document 1 and Patent Document 2 disclose cabinets that are easy to manage history and can prevent unauthorized use.

[0004] Specifically, the cabinets described in Patent Document 1 and Patent Document 2 are configured to be openable and closable only by pre-authorized users. For example, they include a storage room, a door provided to open and close the storage room, a lock mechanism for locking and unlocking the door, a control unit for controlling the unlocking operation of the lock mechanism, a storage unit for storing the biological pattern of a pre-authorized user, and a biometric authentication unit for performing authentication processing using the biological pattern of the user read by a biometric sensor and the biological pattern stored in the storage unit.

[0005] In the cabinet configured as described above, when the user is authenticated, the control unit controls the door to be opened using the lock mechanism. Then, the control unit manages the weight of the drugs measured by an electronic scale together with the opening and closing history of the door.

[0006] Using such a cabinet, access to the door is restricted to pre-authorized users (such as doctors and nurses). Furthermore, since the drugs stored in the compartment are placed on an electronic scale connected to the control unit, their weighing history can be managed. In other words, according to the cabinet described in the patent document below, it is possible to accurately manage when, who, and how much of the drugs inside the cabinet have been used, and it is also possible to prevent the misuse of highly toxic drugs that require special handling. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2020-157010 [Patent Document 2] Japanese Patent Publication No. 2022-167913 [Overview of the project] [Problems that the invention aims to solve]

[0008] As described above, the cabinet (security box device) described in the patent document has a limited number of users who can open the door and can manage the drug weighing history, so from the perspective of drug management, it can achieve a certain effect in preventing misuse.

[0009] On the other hand, as mentioned above, security box devices that weigh drugs using scales require management (calibration, testing, and inspection) to ensure that the scales are functioning correctly (scale validation). In particular, scales (such as electronic scales) installed in security box devices that store drugs must constantly maintain their measurement accuracy within the specified range. Therefore, scale validation is carried out to ensure that there are no problems with the scales, including "daily checks" performed before and after use, and "periodic inspections" that increase the number of inspection items to perform more accurate checks. Generally, "periodic inspections" are inspections that are performed regularly at a set time or during a set period of use, and it is ensured that the scales are calibrated by entrusting the work to a specialized company.

[0010] However, "daily checks" must be performed by the user of the scale, and since this involves visually confirming and recording weight measurements using standard weights, human error in measurement and recording are likely to occur. In addition, "daily checks" must be performed each time the scale is used during daily operations, which increases the workload and working time.

[0011] The present invention has been made in view of the above-mentioned problems, and aims to provide a security box device that can reduce the amount of work and time required for daily scale validation, and improve the accuracy of scale validation. [Means for solving the problem]

[0012] The security box device according to the present invention comprises a housing, a storage compartment retractable within the housing, a locking mechanism for locking and unlocking the storage compartment, a control unit for controlling the unlocking operation of the locking mechanism, a storage unit for storing the biometric pattern of a pre-authorized user and the weight of the inventory in the storage compartment, a biometric authentication unit for performing authentication processing by matching the user's biometric pattern read by a biometric sensor with the biometric pattern stored in the storage unit, and a scale for weighing the contents of the storage compartment and outputting its weight to the control unit.

[0013] Furthermore, the control unit releases the locking state of the lock mechanism upon authentication by the biometric authentication unit, and also checks the weight of the contents on the scale at predetermined intervals. If the storage compartment is pulled out, it checks the weight of the contents on the scale again when it is locked, compares the weight of the contents on the scale with the weight of the inventory read from the storage unit, and if there is a change in weight, stores the weight of the contents on the scale as the new inventory weight in the storage unit.

[0014] Furthermore, in the security box device according to the present invention, the control unit checks the weight of the contents on the scale when instructed to start validation of the scale, reads the weight of the inventory from the storage unit, compares the weight of this inventory with the weight of the contents on the scale, determines whether the weight difference is within a preset tolerance range, notifies information indicating that the scale is functioning correctly if the weight difference is within the tolerance range, and notifies information indicating that the scale is not functioning correctly if the weight difference exceeds the tolerance range.

[0015] Furthermore, if multiple storage chambers are provided and each storage chamber is equipped with a scale, the control unit may perform validation on all scales simultaneously with a single validation start instruction. Alternatively, if multiple storage chambers are provided and each storage chamber is equipped with a scale, the control unit may perform validation on the scales corresponding to the specified storage chamber with a validation start instruction specifying that storage chamber.

[0016] The security box device according to the present invention comprises a housing, a storage compartment retractable within the housing, a locking mechanism for locking and unlocking the storage compartment, a control unit for controlling the unlocking operation of the locking mechanism, a storage unit for storing the biometric pattern of a pre-authorized user and the weight of the inventory in the storage compartment, a biometric authentication unit for performing authentication processing by matching the user's biometric pattern read by a biometric sensor with the biometric pattern stored in the storage unit, and a scale for weighing the contents of the storage compartment and outputting its weight to the control unit.

[0017] Furthermore, the control unit releases the locking state of the lock mechanism upon authentication by the biometric authentication unit, and also checks the weight of the contents on the scale at predetermined intervals. If the storage compartment is pulled out, it checks the weight of the contents on the scale again when it is locked, compares the weight of the contents on the scale with the weight of the inventory read from the storage unit, and if there is a change in weight, stores the weight of the contents on the scale as the new inventory weight in the storage unit.

[0018] Furthermore, in the security box device according to the present invention, the control unit is instructed to start validation of the scale after the storage chamber is specified, and thereafter, when a user authenticated by the biometric authentication unit pulls out the unlocked storage chamber, places the calibrated weight on the scale, and pushes the storage chamber all the way in, and as a result the storage chamber is locked, the control unit checks the weight of the contents on the scale, reads the weight of the inventory from the storage unit, compares the weight of this inventory with the weight of the contents on the scale, determines whether the weight difference is within a preset tolerance range, notifies information indicating that the scale is functioning correctly if the weight difference is within the tolerance range, and notifies information indicating that the scale is not functioning correctly if the weight difference exceeds the tolerance range.

[0019] In addition, in the security box device according to the present invention described above, it is preferable that the allowable range can be set in advance according to the measurement accuracy required for the contents.

[0020] With the security box device configured as described above, the manual validation of the scale, which was previously performed before and after each use, is now performed by software control from the control unit, significantly reducing the workload and time required for daily validation. Furthermore, by reducing manual work, human error in measurement and recording can be eliminated, thereby improving the accuracy of daily validation. [Effects of the Invention]

[0021] The security box device according to the present invention automates the manual validation of the scale, which was previously performed each time before and after use, thereby reducing the workload and time required for daily scale validation. Furthermore, by eliminating manual work, the accuracy of scale validation can be improved. [Brief explanation of the drawing]

[0022] [Figure 1] Figure 1 is a diagram showing an embodiment of a security box device according to the present invention. [Figure 2] Figure 2 is an enlarged view showing an example of the internal structure of a security box device including an electromagnetic lock mechanism and a locking fitting. [Figure 3-1] Figure 3-1 is a diagram showing an example of the internal structure when the storage chamber is locked. [Figure 3-2] Figure 3-2 is a diagram showing a state where a tray is placed on a scale. [Figure 4] Figure 4 is a block diagram showing the system configuration of a security box device according to the present invention. [Figure 5] Figure 5 is a flowchart showing a data deletion process. [Figure 6] Figure 6 is a flowchart showing an example of a process of using a predetermined amount of medicine from a medicine container stored in a security box device and returning the medicine container containing the remaining medicine into the security box device. [Figure 7] Figure 7 is a flowchart showing a process of managing the inventory status of medicine (inventory management process using RFID). [Figure 8] Figure 8 is a flowchart showing a process of managing the inventory status of medicine (inventory management process using a camera). [Figure 9] Figure 9 is a diagram showing a specific example of the attachment position of an IC tag to a medicine container. [Figure 10] Figure 10 is a diagram showing a specific example of the attachment position of a barcode to a medicine container. [Figure 11] Figure 11 is a flowchart showing a barcode confirmation process. [Figure 12] Figure 12 is a flowchart showing a validation method that can be implemented in a security box device according to the present invention. [Figure 13] Figure 13 is a flowchart showing a validation method that can be implemented in a security box device according to the present invention. [Modes for carrying out the invention]

[0023] Hereinafter, embodiments of the security box device according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these embodiments. Furthermore, in the specification and drawings of this application, elements that can be similarly described are denoted by the same reference numerals, thereby omitting redundant explanations.

[0024] <First Embodiment> The security box device of this embodiment is used as a cabinet for managing its contents, and can be applied, for example, as a cabinet for managing pharmaceuticals, and is particularly suitable as a cabinet for managing highly toxic substances.

[0025] <Structure> Figure 1 shows an embodiment of the security box device according to the present invention, where (a) is a front view, (b) is a perspective view, and (c) shows the internal structure. The cabinet 1 shown in Figure 1 is, for example, installed in a hospital and used to store drugs such as highly toxic substances. Below, an embodiment of the security box device that functions as a drawer-type cabinet 1 will be described as an example.

[0026] The cabinet 1 of this embodiment comprises a housing 3 having one or more pull-out storage compartments 2 (the number and arrangement of the storage compartments 2 are arbitrary; Figure 1 shows an example where the storage compartments 2 are arranged in two vertical rows).

[0027] The storage compartment 2 comprises a front section 2a that functions as a wall that seals the inside and outside of the housing 3, a carrier section 2b integrally provided with the front section 2a, and a handle section 2c provided on the surface of the front section 2a. The carrier section 2b is formed in a box shape with an open top by the front section 2a, left and right side sections 2d, bottom section 2e (see Figure 3-1(c)), and rear section 2f.

[0028] Furthermore, slide rails 4 are attached to the left and right side surfaces 2d of the storage compartment 2, allowing the storage compartment 2 to slide horizontally (the left and right slide rails 4 are sandwiched between the storage compartment 2 and the housing 3, respectively: not shown). These left and right slide rails 4 allow the storage compartment 2 to be pulled out (opened) or pushed in (closed).

[0029] As shown in Figures 1(b) and (c), the enclosure 3 is formed in a box shape with an opening at the lower front (where the storage compartment 2 is located), and consists of a top plate 3a, a bottom plate 3b, a back plate 3c, left and right side plates 3d, an opening / closing door 3e provided on the upper front, a partition plate 3f that divides the inside of the enclosure 3, and a base plate 3g installed above the partition plate 3f with a predetermined gap. The number of partition plates 3f and base plates 3g can be changed as appropriate depending on the number of tiers and their placement in the storage compartment 2. The partition plates 3f and base plates 3g are supported by the left and right side plates 3d and do not come into contact with the back plate 3c in order to secure space for wiring, etc.

[0030] Furthermore, in the cabinet 1, an electromagnetic locking mechanism 5 (two in this embodiment) is attached to the inner surface of one side panel 3d of the housing 3, which locks and unlocks each of the multiple storage compartments 2 individually. A U-shaped locking fitting 2g that protrudes toward the rear is attached to the back surface of the front portion 2a of each storage compartment 2 for each electromagnetic locking mechanism 5. Figure 2 is an enlarged view showing an example of the internal structure of the cabinet 1 including the electromagnetic locking mechanism 5 and the locking fitting 2g, where (a) is a side view and (b) is a perspective view. The electromagnetic locking mechanism 5 has a structure that engages with the locking fitting 2g when locked, and functions to lock the storage compartment 2 by a manual pushing operation and to unlock the storage compartment 2 by software control.

[0031] Furthermore, the enclosure 3 houses a power supply unit (not shown) and a computer device 31, which will be described later. Since the cabinet 1 is primarily intended for stationary use, the power supply unit is powered by AC power rather than a battery.

[0032] Furthermore, as shown in Figure 1(c), an electronic scale 6 is installed on a base plate 3g inside the housing 3, and the tray 6a (see Figures 3-1 and 3-2) placed on the electronic scale 6 is configured to allow the placement of drugs and other items on it. In this embodiment, a load cell 6' is used in place of the electronic scale 6 in the lower storage chamber 2 as an example of a means for measuring the weight of the contents (drugs, drug containers, etc.). These electronic scales 6 and load cells 6' are connected to a computer device 31, and the total weight of the contents placed on the tray 6a is managed by the computer device 31.

[0033] In other words, in this embodiment, the computer device 31 is configured to store the amount of stored medication used as a history. In this embodiment, the weight of the contents is managed by connecting the computer device 31 to the electronic scale 6 and load cell 6', but the computer device 31 only needs to be able to acquire the weight of the contents, and the means of acquisition (scale) is not limited to an electronic scale and load cell.

[0034] Furthermore, a tray frame 2h (see the dotted line in Figure 3-1(c)) capable of supporting the tray 6a is provided inside the carrier section 2b of the storage chamber 2. The tray frame 2h moves in conjunction with the tray 6a when the storage chamber 2 is opened and closed, guiding the movement of the tray 6a. This tray frame 2h does not support the tray 6a placed on the electronic scale 6 (load cell 6') when the storage chamber 2 is pushed in and locked, and only supports the tray 6a when the storage chamber 2 is opened and closed.

[0035] Figure 3-1 shows an example of the internal structure when the storage chamber 2 is locked, with (a) showing the internal structure when the storage chamber 2 is pushed in and locked, (b) showing the disassembled configuration, and (c) showing a perspective view of the disassembled configuration. Figure 3-2 shows how tray 6a is placed on an electronic scale 6, which is an example of a scale.

[0036] As shown in Figure 3-1(c), the carrier section 2b is provided with two slits 2k that serve as passages for the rail section 6b, which is installed parallel to the loading platform of the electronic scale 6. The electronic scale 6 is positioned so that the slits 2k and the rail section 6b do not come into contact when the storage chamber 2 is opened and closed. Therefore, as shown in Figure 3-2(a), when the storage chamber 2 is pulled out from the housing 3 and the tray 6a is supported by the tray frame 2h of the carrier section 2b, when the storage chamber 2 is pushed back into the housing 3, as shown in Figure 3-2(b), the tray 6a gradually rises onto the rail section 6b. When the storage chamber 2 is pushed further in and locked, as shown in Figure 3-2(c), the tray 6a is completely resting on the rail section 6b. In the state shown in Figure 3-2(c), the tray frame 2h does not support the tray 6a. As a result, the electronic scale 6 (load cell 6') can accurately measure the weight of the contents.

[0037] Furthermore, in the cabinet 1, the opening and closing door 3e, which is provided on the upper side of the storage compartment 2 so as to be openable and closable, functions as a front panel 7, and a vein detection sensor 8 connected to a computer device 31 is installed on this front panel 7 as a biosensor. This vein detection sensor 8 is a device that detects the vein pattern (vein data) of a person's palm. The vein pattern detected by the vein detection sensor 8 is used to perform matching authentication with the vein pattern of a user (authorized user) that has been pre-registered in the computer device 31 or the management server (management server 32, described later). The opening and closing (unlocking and locking) of the storage compartment 2 is then controlled based on the result of this matching authentication.

[0038] In this embodiment, a vein detection sensor is used as an example of a biosensor, but it is not limited to this. Any method that can verify the identity of an individual using their unique physical characteristics is acceptable. In addition to veins, other biometric patterns (biometric data) such as fingerprints, faces, or eyes may be registered in advance for authentication. Furthermore, authentication is not limited to biosensors; password entry or IC card authentication may also be used.

[0039] The front panel 7 is further equipped with a touch panel 9 connected to a computer device 31. This touch panel 9 functions as a means for inputting characters and various types of information to the computer device 31, and as a means for displaying various types of information transmitted from the computer device 31. Specifically, it is used for inputting the user's management code, displaying medical record information including prescribed medications and disease names, and displaying the authentication results of vein patterns detected by the vein detection sensor 8.

[0040] Furthermore, as shown in Figure 1(c), the cabinet 1 has an RFID reader 10 attached to the back panel 3c of the housing 3 at the back of the storage compartment 2 (in this embodiment, one RFID reader 10 is attached to each storage compartment 2). The drug containers placed on the tray 6a are fitted with IC tags on which code information readable by the RFID reader 10 (a unique identification code for each drug container) is written. In this embodiment, the IC tags used are assumed to be of the label type, but are not limited to this, and any type that can be attached to the drug container may be used. Also, considering that the storage compartment 2 is a narrow space, the IC tags used are preferably passive tags, but are not limited to this, and for example, active tags may also be used.

[0041] The RFID reader 10 is connected to the computer device 31 and scans the entire containment room 2 to read the identification codes of the drug containers from the IC tags, which are then transmitted to the computer device 31.

[0042] Furthermore, as shown in Figure 1(c), the cabinet 1 is equipped with a camera 11 capable of capturing images of the entire interior of the storage compartment 2, which penetrates the partition plate 3f at the top of the storage compartment 2 (in this embodiment, one camera 11 is installed for each storage compartment 2). There are no particular restrictions on the position where the camera 11 is installed, as long as it is in a position that can capture images of the entire storage compartment 2, but it is preferable to install it on the upper side of the storage compartment 2. The camera 11 is connected to a computer device 31 and transfers image data (image data) of images taken inside the storage compartment 2 to the computer device 31.

[0043] Next, the configuration of the electromagnetic locking mechanism 5 will be explained in detail using Figure 2.

[0044] As shown in Figure 2, the electromagnetic locking mechanism 5 comprises a rod-shaped plunger 21, a solenoid unit 22 for moving the plunger 21 vertically, a locking lever 23 having a tapered locking portion 23a whose tip narrows in diameter downwards so as to engage with a locking fitting 2g, and a shaft portion 23b with the locking portion 23a at its tip that rotates around a rotating shaft portion 23c in accordance with the movement of the plunger 21, and a coil spring 24 that biases the plunger 21 and the locking portion 23a downward. The solenoid unit 22 consists of a solenoid body and a drive circuit (not shown) for driving it, and the drive circuit is supplied with power by an AC power supply and a control signal is transmitted from a computer device 31.

[0045] Furthermore, the electromagnetic locking mechanism 5 includes an ejection lever 25 that pushes the storage chamber 2 forward when unlocked (when the engagement between the locking part 23a and the locking fitting 2g is released) and maintains the unlocked state. This ejection lever 25 has a structure in which the shaft part 25a rotates around the rotating shaft part 25b, and the restoring force of the coil spring 26 constantly biases the tip part 25c of the shaft part 25a in the direction of pushing out the storage chamber 2.

[0046] In other words, when the locking part 23a and the locking fitting 2g are engaged (when locked), the push lever 25 is held in a position (initial position) pressing against the storage chamber 2 by the restoring force of the coil spring 26. When the engagement between the locking part 23a and the locking fitting 2g is released, the push lever 25 starts rotating due to the restoring force of the coil spring 26 and pushes out the storage chamber 2. After pushing out the storage chamber 2, the push lever 25 collides with the stopper 27 fixed to the side plate 3d of the housing 3 and stops rotating.

[0047] In the electromagnetic lock mechanism 5 configured in this way, when the storage chamber 2 is pushed in from the pulled-out state (unlocked state), the tip of the locking fitting 2g comes into contact with the tapered portion 23d at the tip of the locking part 23a. When the storage chamber 2 is pushed in further, the locking fitting 2g moves forward while pushing up the locking part 23a, and when the locking part 23a moves over the tip of the locking fitting 2g, the biasing force of the coil spring 24 causes the locking part 23a (plunger 21) to move downward again. As a result, the tip of the locking part 23a is inserted into the ring of the locking fitting 2g and engages, resulting in a locked state (locking operation by the electromagnetic lock mechanism 5). At this time, the tip portion 25c of the push lever 25 is pushed back from the stop position by the stopper 27 against the biasing force of the coil spring 26 and held in the initial position.

[0048] The operation from the unlocked state to the locked state (locking operation by the electromagnetic locking mechanism 5) described above is performed independently of the drive of the solenoid unit 22. On the other hand, the operation from the locked state to the unlocked state is made possible by driving the solenoid unit 22 with a control signal to retract the plunger 21 (move the locking unit 23a upward). After unlocking, the locking unit 23a (plunger 21) moves downward again due to the biasing force of the coil spring 24.

[0049] Furthermore, a cylinder lock 28 is provided on the front part 2a of the storage chamber 2, which allows the plunger 21 of the electromagnetic locking mechanism 5 to be manually moved forward and backward. This cylinder lock 28 allows the plunger 21 to be moved forward and backward by unlocking and locking it with a key, so that the locked state of the electromagnetic locking mechanism 5 can be released in the event of an emergency.

[0050] <System Configuration> Next, the system configuration of Cabinet 1 will be explained based on the drawings. Figure 4 is a block diagram showing the system configuration of Cabinet 1.

[0051] As shown in Figure 4, the computer device 31 inside the cabinet 1 includes a control unit 31a that performs various calculations, a biometric authentication unit 31b that performs matching authentication between a vein pattern detected by a vein detection sensor 8 connected to the control unit 31a and a pre-registered vein pattern, and a storage unit 31c that stores various data.

[0052] A touch panel 9 is connected to the control unit 31a of the computer device 31, allowing users such as nurses and doctors to access information about stored medications and other items by entering a user management code. Furthermore, regardless of biometric authentication using the vein detection sensor 8, the system may be configured to allow control (unlocking control) of the electromagnetic lock mechanism 5 by entering a code combining alphanumeric characters and symbols using the touch panel 9.

[0053] Furthermore, the storage unit 31c of the computer device 31 stores the vein patterns of pre-registered users, as well as data such as the user's name, affiliation, inventory information of stored medications, and purpose of use.

[0054] Furthermore, the user's vein pattern and related data registered in the storage unit 31c can be deleted according to the flow shown in Figure 5. Specifically, with the menu screen displayed on the touch panel (display unit) 9, the operator selects the delete start key from the menu screen (step SP1). Next, the operator enters information such as the registration management code, full name, gender, and age (step SP2). The control unit 31a determines whether the entered information, such as the management code, is correct and can be deleted (step SP3). If the control unit 31a determines that deletion is possible, the operator selects the delete key according to the menu screen (step SP4). This erases the data registered in the storage unit 31c.

[0055] As shown in Figure 4, the control unit 31a is connected to an electromagnetic locking mechanism 5 and an open / close sensor 12 that detects the open / closed state of the storage compartment 2. Although not shown in Figures 1 to 3, the open / close sensor 12 is designed such that, for example, the interrupter sensor is shut off when the storage compartment 2 is pushed in and locked (locked state), and the interrupter sensor is not shut off when the storage compartment 2 is pulled out (unlocked state). The sensor detects the locked state of the storage compartment 2 when the interrupter sensor is shut off, and the unlocked state of the storage compartment 2 when the interrupter sensor is not shut off. The detection results from the open / close sensor 12 (unlocked state, locked state) are sent to the control unit 31a, and the control unit 31a controls the display of the touch panel 9 based on these detection results so that the open / closed state of the storage compartment 2 can be visually recognized. The open / close sensor 12 may also be a switch that switches ON / OFF depending on the open / closed state.

[0056] Furthermore, as shown in Figure 4, the control unit 31a is connected to an electronic scale 6 and a load cell 6' (these two are sometimes simply referred to as the "scale"). The cabinet 1 in this embodiment is configured to output weighing data measured at predetermined intervals from the scale to the control unit 31a, and is configured to output weighing data from the scale to the control unit 31a when the storage compartment 2 is pulled out and subsequently locked. In other words, the control unit 31a checks the weight of the drug on the scale at predetermined intervals, and further checks the weight of the drug on the scale when the storage compartment 2 is pulled out and subsequently locked.

[0057] Furthermore, the control unit 31a of the computer device 31 is connected to the RFID reader 10 and the camera 11. Detailed control using the RFID reader 10 and the camera 11 will be described later.

[0058] Furthermore, the computer device 31 may be connected via LAN (wired or wireless) to a management server 32 located separately from the cabinet 1. In this case, the contents of the data stored in the storage unit 31c, such as the user's vein pattern, may be saved and managed by the management server 32.

[0059] <Drug Usage Flowchart> Next, based on the flow chart in Figure 6, we will explain an example (series of processes) of a user, such as a nurse, using a predetermined amount of medication from the medication containers stored in Cabinet 1 and returning the medication containers containing the remaining medication back into Cabinet 1. Here, as an example, we will explain the case where medication stored in the upper storage compartment 2 is used and the remaining medication is returned to the original storage compartment 2.

[0060] For example, when a nurse uses medication stored in cabinet 1, the nurse selects storage compartment 2 (storage compartment 2 to be unlocked) on the menu screen of touch panel 9, then selects the authentication start key, and then places their palm on the vein detection sensor 8 within a predetermined time. This causes the control unit 31a of the computer device 31 to start the authentication process by matching the read vein pattern (step ST1). If authentication is successful within a predetermined time (for example, 20 seconds) (steps ST2, ST3), the electromagnetic lock mechanism 5 releases the engagement (locked state) between the lock part 23a and the locking fitting 2g under the control of the control unit 31a (step ST4). Also, under the control of the control unit 31a, the fact that authentication is OK is displayed on the touch panel 9 (step ST5), and upon seeing this, the nurse grasps the handle part 2c and pulls out storage compartment 2.

[0061] At this point, the open / close sensor 12 sends a signal to the computer device 31 indicating the unlocked state, and the control unit 31a records the time in the storage unit 31c (step ST6). The nurse takes out the drug container placed on the electronic scale 6, uses the predetermined amount, and then places the drug container containing the remaining drug back on the electronic scale 6 (returns it). After returning the drug container to the storage chamber 2, the nurse pushes the storage chamber 2 all the way in. This performs the "locking operation by the electromagnetic lock mechanism 5" described above (step ST7).

[0062] Furthermore, when the storage compartment 2 is pushed in and locked, the opening / closing sensor 12 detects the locked state, and the control unit 31a records the time information of the detection in the storage unit 31c (step ST8).

[0063] When the containment chamber 2 is pushed in and locked, the control unit 31a checks the weighing data from the electronic scale 6 (step ST9). The weight of the drug container weighed here is then recorded in the storage unit 31c under the control of the control unit 31a (step ST10). In step ST2 after the start of authentication, if a predetermined time (for example, 20 seconds) has elapsed, the control unit 31a terminates the process as an authentication operation start failure.

[0064] Therefore, according to the cabinet 1 of this embodiment, only authorized users (for example, doctors and nurses) can unlock the storage compartment 2, and the drugs stored inside are placed on an electronic scale 6 connected to a computer device 31, allowing for the management of their weighing history. In other words, it is possible to accurately track when, who, and how much of the drugs in the cabinet 1 were used, thus reliably preventing the misuse of drugs that require special handling, such as highly toxic substances.

[0065] <Inventory Management Processing> Next, we will explain the process by which the computer device 31 individually identifies the drugs placed on the scale (electronic scale 6, load cell 6', or both) and manages the drug's inbound and outbound status (inbound and outbound management process).

[0066] For example, in a cabinet 1 that houses drug containers, there may be cases where drug containers stored in the storage compartment 2 are replaced, or where multiple drug containers are stored in the storage compartment 2. In such cases, there is a need to manage the inflow and outflow status, such as the replacement of drug containers and the number of drug containers, which is difficult to determine by simply identifying each drug container on a scale and managing its weight. Therefore, the cabinet 1 of this embodiment uses RFID (Radio Frequency Identification) to manage the inflow and outflow status of drugs.

[0067] In this embodiment, the cabinet 1 is equipped with one RFID reader 10 for each storage compartment 2 (see Figure 1(c)). It is also assumed that the drug containers placed on the scale are fitted with IC tags on which code information (a unique identification code for each drug container) that can be read by the RFID reader 10 is written. In this embodiment, the IC tags used are assumed to be of the label type, but are not limited to this, and any type that can be attached to the drug container may be used. Furthermore, considering that the storage compartment 2 is a narrow space, the IC tags used are preferably passive tags, but are not limited to this, and for example, active tags may also be used.

[0068] Each RFID reader 10 is connected to a computer device 31 (see Figure 4), and each reader scans the inside of its corresponding storage room 2 and transmits the identification code of the drug container read from the IC tag to the computer device 31. The control unit 31a of the computer device 31 records the received identification code in the storage unit 31c for each storage room 2. The storage unit 31c also stores inventory information for each storage room 2. This inventory information includes, for example, the identification code, the drug name corresponding to the identification code, the weight of the inventory (total weight of drug containers), the quantity of drug containers, and the time the inventory information was updated. This inventory information is accumulated as an inbound / outbound history for each update time. If a storage room 2 is empty, this fact is recorded in the storage unit 31c.

[0069] Figure 7 is a flowchart illustrating the process for managing the inflow and outflow status of pharmaceuticals (inflow and outflow management process using RFID). Here, as an example, the inflow and outflow management process for the upper storage chamber 2 is described. The same process is performed for the lower storage chamber 2.

[0070] With the cabinet 1 powered on (step S1), the control unit 31a of the computer device 31 checks the current weight of the drug container on the electronic scale 6 at regular intervals (steps S2, S3). Also, when the cabinet 1 is powered on, the control unit 31a checks the current weight of the drug container on the electronic scale 6 each time the storage compartment 2 is opened and closed, at the moment it is pushed in and locked (steps S4, S3). The authentication process and the process of pulling out the storage compartment 2 are the same as in steps ST1 to ST5 described above. The process of pushing in and locking the storage compartment 2 is the same as in step ST7 described above.

[0071] Each time the weight of the drug container is checked in step S3, the control unit 31a reads the weight of the latest inventory information from the storage unit 31c and compares this weight with the current weight of the drug container on the electronic scale 6 (step S5). If the comparison shows no change in weight (step S5, N), it waits until a change occurs.

[0072] On the other hand, if the comparison reveals a change in weight (step S5,Y), the control unit 31a drives the IC tags in the storage chamber 2 via the RFID reader 10 to perform a batch scan and read the identification code from the IC tags (step S6).

[0073] Next, the control unit 31a reads all the identification codes in the latest inventory information from the storage unit 31c and compares the read identification codes with the identification codes read in step S6 (step S7).

[0074] Then, if the comparison in step S7 results in a change in the identification code (step S7, Y), the control unit 31a determines that the drug container has been replaced and displays information to that effect on the touch panel 9 (step S8). Note that the processing in step S8 is not limited to display processing; it may also be a warning with lighting or sound. In step S8, the control unit 31a updates the inventory information (identification code, drug name corresponding to the identification code, inventory weight, quantity of drug containers, inventory information update time, etc.) based on the identification code read in step S6. In other words, the new inventory information is stored as the inbound and outbound history.

[0075] On the other hand, if the comparison shows no change in the identification code (step S7,N), the computer device 31 determines that the drug in the drug container has been used or replenished, and updates the inventory information (identification code, drug name corresponding to the identification code, inventory weight, quantity of drug containers, inventory information update time, etc.) based on the identification code read in step S6 (step S9). In other words, the new inventory information is stored as the inventory inflow / outflow history.

[0076] Subsequently, the control unit 31a continues to repeatedly execute the processes from steps S2 to S10 while the power to cabinet 1 remains ON (step S10). On the other hand, if the power to cabinet 1 is turned off (step S10,N), the control unit 31a terminates the inventory management process.

[0077] For example, while the power to cabinet 1 remains ON, a user such as a nurse can select storage room 2 on the menu screen of touch panel 9 and then select the key to check the inventory status, allowing them to view the inventory history (accumulated inventory information) on the screen. At this time, the control unit 31a executes controls to display the inventory history, such as the names and quantities of drugs in the drug containers, on touch panel 9 in chronological order.

[0078] <Application examples of inventory management processes> In this embodiment, the inbound and outbound status of pharmaceuticals may be managed using a camera 11 capable of capturing images of the entire interior of the storage chamber 2. In other words, in this embodiment, either the inbound and outbound management process using the RFID reader 10 described above (see Figure 7) or the inbound and outbound management process using the camera 11 described later (see Figure 8) is performed.

[0079] For example, in inventory management processing using camera 11, since IC tags are not required, it is possible to manage not only drugs in drug containers but also drugs (such as solid drugs) that are placed directly on tray 6a without being placed in drug containers.

[0080] For example, as shown in Figure 1(c), the cabinet 1 of this embodiment is equipped with one camera 11 for each storage compartment 2. Each camera 11 is connected to a computer device 31 and photographs the interior of the corresponding storage compartment 2, transferring the image data to the computer device 31. The control unit 31a of the computer device 31 records the received image data in the storage unit 31c for each storage compartment 2. The storage unit 31c also stores inventory information for each storage compartment 2. This inventory information includes, for example, identification information (pattern information) such as the shape and color of the stored items (drug containers, drugs not in containers), the drug name corresponding to each stored item, the weight of the inventory, the quantity of stored items, and the time the inventory information was updated. This inventory information is accumulated as an inbound / outbound history for each update time.

[0081] Figure 8 is a flowchart illustrating the process for managing the entry and exit status of pharmaceuticals (entry and exit management process using cameras). Here, as an example, the entry and exit management process for the upper storage chamber 2 is explained. The same process is performed for the lower storage chamber 2.

[0082] After executing steps S1 to S4 in the same manner as in Figure 7, the control unit 31a reads the weight of the inventory from the inventory information in the storage unit 31c each time the weight of the contents is checked in step S3, and compares this weight with the current weight of the contents on the electronic scale 6 (step S5). If there is no change in weight as a result of the comparison (step S5, N), it waits until there is a change.

[0083] On the other hand, if the comparison reveals a change in weight (step S5,Y), the computer device 31 controls the camera 11 to take pictures inside the containment chamber 2 and receives the image data (step S6').

[0084] Next, the control unit 31a reads all the identification information of the contents in the latest inventory information from the storage unit 31c, and uses the read identification information to perform pattern recognition processing on the image data received in step S6' (step S7').

[0085] Then, if, as a result of the pattern recognition process in step S7', there are any items that cannot be recognized (step S7', Y), the control unit 31a determines that there has been a change in the medication (including medication containers and medications not in containers) or that a change has occurred over time in the medication not in containers (such as a change in shape, color, or use of solid medication), and displays information to that effect on the touch panel 9 (step S8). Note that the processing in step S8 is not limited to display processing; the lighting may be replaced with an audible warning. Also in step S8, the control unit 31a updates the inventory information (pattern information, medication name corresponding to each item, weight of the inventory, quantity of the items, time of inventory information update, etc.) based on the image data captured in step S6'. In other words, the new inventory information is stored as the inbound and outbound history.

[0086] On the other hand, if no items are found to be unrecognizable as a result of the pattern recognition process (step S7',N), the computer device 31 determines that the drug has been used or replenished, and updates the inventory information (pattern information, drug name corresponding to each item, inventory weight, quantity of items, inventory information update time, etc.) based on the image data captured in step S6' (step S9). In other words, the new inventory information is stored as the inbound / outbound history.

[0087] Subsequently, the control unit 31a continues to repeatedly execute the processes from steps S2 to S10 as long as the power to cabinet 1 remains ON (step S10, Y). On the other hand, if the power to cabinet 1 is turned off (step S10, N), the control unit 31a terminates the inventory management process.

[0088] <Specific example of identification code reading process> Next, a specific example of the identification code reading process in step S6 of Figure 7 described above will be explained. In this embodiment, as described above, an IC tag with code information (a unique identification code for each drug container) that can be read by the RFID reader 10 is attached to the drug container placed on the scale. Then, in step S6 of the inventory management process shown in Figure 7, the control unit 31a of the computer device 31 controls the RFID reader 10 to drive the IC tags in the storage room 2 and performs a batch scan. As a result, the identification codes are read from all the IC tags in the storage room 2. In this embodiment, the attachment position of the IC tag to the drug container is not particularly limited, and it may be attached (sticked) anywhere on the drug container as long as the identification code can be read.

[0089] On the other hand, the radio waves transmitted and received between the RFID reader 10 and the IC tag are easily affected by the medication inside the drug container, and depending on where the IC tag is attached, the strength of the radio waves from each IC tag in the storage chamber 2 may vary. Therefore, in this embodiment, it is desirable to standardize the attachment of the IC tags, for example, to the lid (cap) of the drug container, in order to suppress the strength of the radio waves received by the RFID reader 10.

[0090] Figure 9 shows a specific example of the attachment position of an IC tag to a drug container. Here, the drug container 50 is assumed to consist of a cap 51 and a container body 52. ​​The IC tag 53 is then attached to the top surface of the cap 51. This allows the computer device 31 (RFID reader 10) to reliably read the identification code with a consistent level of accuracy at all times.

[0091] As shown in Figure 9, if the IC tag 53 is attached to the top surface of the cap 51, there is a possibility of human error in which the cap 51 is mistakenly attached to the container body of another drug container (not shown). Therefore, in order to prevent such human error in attaching the cap incorrectly, it is desirable to attach the same barcode 54 (or the same QR code®) to the cap 51 and the container body 52, and to confirm that the barcodes 54 (or QR codes®) attached to them are the same.

[0092] Figure 10 shows a specific example of where a barcode might be affixed to a drug container. Below, we will explain, as an example, the case where the same barcode is affixed to both the cap and the body of the drug container.

[0093] Specifically, a barcode reader (which may be a 2D barcode reader compatible with QR Code®) is provided in the cabinet 1 shown in Figure 1, and this barcode reader is connected to a computer device 31 (control unit 31a). Furthermore, a different barcode is assigned to each drug container stored in the storage chamber 2, and this barcode is affixed to the cap and the body of the container, respectively. Then, for example, a user such as a nurse uses a predetermined amount of drug from the drug container 50 stored in the cabinet 1, and in the process of returning the drug container 50 containing the remaining drug back into the cabinet 1, the barcode reader is used to confirm that the barcode matches before returning the drug container back into the cabinet 1. The barcode reader may be a type that is attached and fixed to the cabinet 1, or it may be a handheld type.

[0094] Figure 11 is a flowchart showing the barcode verification process.

[0095] When the control unit 31a of the computer device 31 is in a waiting state for reception (step S21, N), if it receives barcode information for both the cap and the container body read by the barcode reader (step S21, Y), it checks whether these two barcode information items match (step S22).

[0096] Then, if the two barcodes match (step S22, Y), the control unit 31a determines that the cap is properly installed and returns to the barcode information waiting state (step S21). On the other hand, if they do not match (step S22, N), it determines that the cap has been installed incorrectly, displays information to that effect on the touch panel 9 (step S23), and returns to the barcode information waiting state (step S21). Note that the processing in step S23 is not limited to display processing, but may also be a warning by illumination or sound.

[0097] In the above description, to prevent incorrect cap installation, the same barcode 54 (or the same QR code (registered trademark)) is affixed to both the cap 51 and the container body 52, and the control unit 31a checks whether the two barcode information read via the barcode reader is identical. However, this is not the only option. For example, stickers with the same number (or stickers with the same pattern) may be affixed to both the cap 51 and the container body 52, and the user can visually check whether the information on the stickers is identical when returning the drug container to the storage chamber 2.

[0098] <Validation> Next, we will explain the process (validation method) for verifying the measurement accuracy of the scale mounted in Cabinet 1.

[0099] In this embodiment, the cabinet 1 manages whether the scale (electronic scale 6, load cell 6') is functioning correctly. Based on instructions from the user (any user), the computer device 31 determines whether the measurement accuracy of the scale is maintained within the specified range.

[0100] Figure 12 is a flowchart showing a validation method that can be implemented in the security box device according to the present invention.

[0101] For example, to verify the measurement accuracy of the scales mounted in cabinet 1, the user selects the validation key displayed on the touch panel 9 (step S31). This causes the control unit 31a of the computer device 31 to start validating all the scales (electronic scales 6, load cells 6').

[0102] When a validation key is selected, the control unit 31a verifies the weight of the drug container on the scale (the current "inventory weight") (step S32).

[0103] Next, the control unit 31a reads the most recent "inventory weight" for each scale from the inventory history in the inventory management process described above (Figure 7 or Figure 8) (step S33). Then, for each scale, it compares the most recent "inventory weight" with the current "inventory weight" and determines whether the weight difference is within a preset tolerance range (step S34). The tolerance range can be set in advance for each scale via menu operation, depending on the measurement accuracy required for the contents (pharmaceuticals). Specifically, any numerical value such as ±0.1g or ±0.01g can be set.

[0104] If the weight difference between the two is within an acceptable range (step S34, Y), the control unit 31a displays information on the touch panel 9 indicating that the scale is functioning correctly, and stores this information in the storage unit 31c (step S35). Note that the process in step S35 is not limited to display processing, but may also be done by voice notification.

[0105] On the other hand, if the comparison reveals that the weight difference between the two exceeds the acceptable range (step S34, N), the control unit 31a displays information on the touch panel 9 indicating that the scale is not functioning correctly (e.g., abnormality, malfunction), and stores this information and the weight difference in the storage unit 31c (step S36). Note that the process in step S36 is not limited to display processing, but may also be done by voice notification.

[0106] Subsequently, the control unit 31a returns to the instruction waiting state (step S31, N), and executes the processes in steps S32 to S36 each time a validation key is selected (step S31, Y). In this embodiment, validation of all scales is performed simultaneously with a single key operation, but this is not the only option. For example, the validation of the scales may be performed one by one in the order of the storage chambers with a single key operation. It is also possible to perform validation of the scales for each storage chamber by specifying the storage chamber (scale) and selecting the validation key.

[0107] <Effects, etc.> As described above, the cabinet 1 (security box device 1) of this embodiment comprises a housing 3, a storage compartment 2 retractably provided inside the housing 3, an electromagnetic locking mechanism 5 for locking and unlocking the storage compartment 2, a control unit 31a for controlling the unlocking operation of the electromagnetic locking mechanism 5, a storage unit 31c for storing the biometric pattern of a pre-authorized user and the weight of the inventory in the storage compartment 2, a biometric authentication unit 31b for performing authentication processing by matching the user's biometric pattern read by the vein detection sensor 8 with the biometric pattern stored in the storage unit 31c, and an electronic scale 6 for weighing the contents in the storage compartment 2 and outputting its weight to the control unit 31a.

[0108] The control unit 31a releases the lock state of the electromagnetic lock mechanism 5 upon authentication by the biometric authentication unit 31b, and further checks the weight of the contents on the electronic scale 6 at predetermined intervals. If the storage compartment 2 is pulled out, it checks the weight of the contents on the electronic scale 6 when it is subsequently locked, compares the weight of the contents on the electronic scale 6 with the weight of the inventory read from the storage unit 31c, and if there is a change in weight, stores the weight of the contents on the electronic scale 6 as the new inventory weight in the storage unit 31c.

[0109] Furthermore, when the validation of the electronic scale 6 is instructed to begin, the control unit 31a checks the weight of the contents on the electronic scale 6, reads the weight of the inventory from the storage unit 31c, compares this inventory weight with the weight of the contents on the electronic scale 6, and determines whether the weight difference is within a preset tolerance range. If the weight difference is within the tolerance range, it notifies information indicating that the electronic scale 6 is functioning correctly; if the weight difference exceeds the tolerance range, it notifies information indicating that the electronic scale 6 is not functioning correctly.

[0110] Furthermore, if multiple storage chambers 2 are provided and each storage chamber 2 is equipped with an electronic scale 6, the control unit 31a may perform validation on all electronic scales 6 simultaneously with a single validation start instruction. Alternatively, if multiple storage chambers 2 are provided and each storage chamber 2 is equipped with an electronic scale 6, the control unit 31a may perform validation on the electronic scale 6 corresponding to the specified storage chamber 2 with a validation start instruction specifying the storage chamber.

[0111] Furthermore, in the cabinet 1 of this embodiment, it is preferable that the above-mentioned tolerance range can be set in advance according to the measurement accuracy required for the contents.

[0112] According to the cabinet 1 of this embodiment, the manual validation of the scale, which was previously performed before and after each use, is now performed by software control by the control unit 31a, thereby significantly reducing the workload and time required for daily validation. Furthermore, by reducing manual work, human error in measurement and recording can be eliminated, thereby improving the accuracy of daily validation.

[0113] <Second Embodiment> Next, a second embodiment of the security box device according to the present invention will be described with reference to the drawings. However, this embodiment does not limit the present invention. Furthermore, elements that can be described in the same way as in the first embodiment described above are denoted by the same reference numerals, and redundant explanations are omitted.

[0114] In the second embodiment, a validation method different from that of the first embodiment will be described. Note that the configuration of the cabinet 1 and the processing other than the validation method are the same as in the first embodiment.

[0115] In this embodiment, the cabinet 1 controls whether the scale (electronic scale 6, load cell 6') is functioning correctly. Based on instructions from a pre-authorized user, the computer device 31 determines whether the measurement accuracy of the scale is maintained within the specified range.

[0116] Figure 13 is a flowchart showing a validation method that can be implemented in the security box device according to the present invention.

[0117] For example, to verify the measurement accuracy of a scale mounted in cabinet 1, the user (a pre-authorized user) selects storage compartment 2 on the menu screen of touch panel 9 and then selects the validation key (step S31'). The user then performs the authentication process and the process of pulling out the designated storage compartment 2 according to steps ST1 to ST5 described above, and places the calibrated weight (for example, 5g) on ​​tray 6a. Then, the user performs the process of pushing storage compartment 2 all the way in and locking it according to step ST7 described above. As a result, the control unit 31a of the computer device 31 starts validating the scale (electronic scale 6 or load cell 6') in the designated storage compartment 2.

[0118] When storage chamber 2 is locked, the control unit 31a checks the weight of the drug container on the scale (the current "inventory weight") (step S32').

[0119] Next, the control unit 31a reads the most recent "inventory weight" from the scale in the designated storage room 2 from the inventory management process described above (Figure 7 or Figure 8) (step S33'). Then, it compares the most recent "inventory weight" with the current "inventory weight" and determines whether the weight difference is within a preset tolerance range (step S34'). The tolerance range can be set in advance by menu operation according to the measurement accuracy required for the stored items (pharmaceuticals). Specifically, any numerical value such as 5±0.1g or 5±0.01g can be set.

[0120] If the weight difference between the two is within an acceptable range (step S34', Y), the control unit 31a displays information on the touch panel 9 indicating that the scale is functioning correctly, and stores this information in the storage unit 31c (step S35'). Note that the process in step S35' is not limited to display processing, but may also be done by voice notification.

[0121] On the other hand, if the comparison reveals that the weight difference between the two exceeds the acceptable range (step S34', N), the control unit 31a displays information on the touch panel 9 indicating that the scale is not functioning correctly (e.g., abnormality, malfunction), and stores this information and the weight difference in the storage unit 31c (step S36'). Note that the process in step S36' is not limited to display processing, but may also be done by voice notification.

[0122] Subsequently, the control unit 31a returns to the instruction waiting state (step S31', N), and each time a dwelling room is specified and a validation key is selected (step S31', Y), it executes the processes in steps S32' to S36'.

[0123] <Effects, etc.> As described above, the cabinet 1 (security box device 1) of this embodiment comprises a housing 3, a storage compartment 2 retractably provided inside the housing 3, an electromagnetic locking mechanism 5 for locking and unlocking the storage compartment 2, a control unit 31a for controlling the unlocking operation of the electromagnetic locking mechanism 5, a storage unit 31c for storing the biometric pattern of a pre-authorized user and the weight of the inventory in the storage compartment 2, a biometric authentication unit 31b for performing authentication processing by matching the user's biometric pattern read by the vein detection sensor 8 with the biometric pattern stored in the storage unit 31c, and an electronic scale 6 for weighing the contents in the storage compartment 2 and outputting its weight to the control unit 31a.

[0124] The control unit 31a releases the lock state of the electromagnetic lock mechanism 5 upon authentication by the biometric authentication unit 31b, and further checks the weight of the contents on the electronic scale 6 at predetermined intervals. If the storage compartment 2 is pulled out, it checks the weight of the contents on the electronic scale 6 when it is subsequently locked, compares the weight of the contents on the electronic scale 6 with the weight of the inventory read from the storage unit 31c, and if there is a change in weight, stores the weight of the contents on the electronic scale 6 as the new inventory weight in the storage unit 31c.

[0125] Furthermore, the control unit 31a is instructed to start validation of the electronic scale 6 after specifying the storage room 2. Subsequently, when a user authenticated by the biometric authentication unit 31b pulls out the unlocked storage room 2, places the calibrated weight on the electronic scale 6, and pushes the storage room 2 all the way in, and as a result the storage room 2 is locked, the control unit 31a checks the weight of the contents on the electronic scale 6, reads the weight of the inventory from the storage unit 31c, compares this inventory weight with the weight of the contents on the electronic scale 6, and determines whether the weight difference is within a preset tolerance range. If the weight difference is within the tolerance range, it notifies the user that the electronic scale 6 is functioning correctly. If the weight difference exceeds the tolerance range, it notifies the user that the electronic scale 6 is not functioning correctly.

[0126] In addition, in the cabinet 1 of this embodiment, it is preferable that the above-mentioned tolerance range can be set in advance according to the measurement accuracy required for the contents.

[0127] According to the cabinet 1 of this embodiment, the manual validation of the scale, which was previously performed before and after each use, is now performed by software control by the control unit 31a, thereby significantly reducing the workload and time required for daily validation. Furthermore, by reducing manual work, human error in measurement and recording can be eliminated, thereby improving the accuracy of daily validation.

[0128] In the first and second embodiments, a cabinet 1 for storing pharmaceuticals was used as an example, but the items to be stored (contained items) are not limited to pharmaceuticals and may be any items.

[0129] Furthermore, the present invention is not limited to the first and second embodiments described above. The above embodiments are illustrative, and any configuration that is substantially identical to the technical idea described in the claims and achieves similar effects is included within the technical scope of the present invention. [Explanation of Symbols]

[0130] 1. Cabinet (security box device) 2 Confinement Chambers 2a Front part 2b Career Department 2c Handle 2d side part 2e Bottom part 2f Back part 2g locking mechanism Frame for 2h tray 2k slit section 3 cabinets 3a Top plate 3b Bottom plate 3c Back plate 3d side plate 3e Opening and closing door 3F Partition 3g base plate 4 slide rails 5. Electromagnetic locking mechanism 6 Electronic scales 6' load cell 6a Tray 6b Rail section 7 Front Panel 8. Vein detection sensor 9 Touch panel 10 RFID readers 11 Cameras 12 Open / Close Sensor 21 Plungers 22 Solenoid section 23 Locking lever 23a Locking part 23b Shaft section 23c Rotating shaft 23d Tapered section 24 Coil Springs 25 Push lever 25a Shaft section 25b Rotating shaft 25c Tip 26 Coil Springs 27 Stopper 28 Cylinder lock 31 Computer equipment 31a Control Unit 31b Biometric Authentication Department 31c storage section 32 Management Server

Claims

1. The device comprises a housing, a storage compartment retractable within the housing, a locking mechanism for locking and unlocking the storage compartment, a control unit for controlling the unlocking operation of the locking mechanism, a storage unit for storing the biometric pattern of a pre-authorized user and the weight of the inventory in the storage compartment, a biometric authentication unit for performing authentication processing by matching the user's biometric pattern read by a biometric sensor with the biometric pattern stored in the storage unit, and a scale for weighing the contents of the storage compartment and outputting its weight to the control unit. The control unit releases the locking state of the lock mechanism upon authentication by the biometric authentication unit, and further checks the weight of the contents on the scale at predetermined intervals, and if the storage compartment is pulled out, checks the weight of the contents on the scale when it is subsequently locked, compares the weight of the contents on the scale with the weight of the inventory read from the storage unit, and if there is a change in weight, stores the weight of the contents on the scale as the new inventory weight in the storage unit, in a security box device, The control unit, When the validation of the scale is instructed to begin, the weight of the contents on the scale is checked. The weight of the inventory is read from the storage unit, and this inventory weight is compared with the weight of the contents on the scale to determine whether the weight difference is within a preset tolerance range. If the weight difference is within the acceptable range, information indicating that the scale is functioning correctly will be notified; if the weight difference exceeds the acceptable range, information indicating that the scale is not functioning correctly will be notified. A security box device characterized by the following features.

2. When multiple storage chambers are provided, and each storage chamber is equipped with the scale, The control unit performs validation on all scales simultaneously with a single validation start instruction. The security box device according to feature 1.

3. When multiple storage chambers are provided, and each storage chamber is equipped with the scale, The control unit performs validation of the scale corresponding to the specified containment chamber upon receiving an instruction to start validation for the specified containment chamber. The security box device according to feature 1.

4. The device comprises a housing, a storage compartment retractable within the housing, a locking mechanism for locking and unlocking the storage compartment, a control unit for controlling the unlocking operation of the locking mechanism, a storage unit for storing the biometric pattern of a pre-authorized user and the weight of the inventory in the storage compartment, a biometric authentication unit for performing authentication processing by matching the user's biometric pattern read by a biometric sensor with the biometric pattern stored in the storage unit, and a scale for weighing the contents of the storage compartment and outputting its weight to the control unit. The control unit releases the locking state of the lock mechanism upon authentication by the biometric authentication unit, and further checks the weight of the contents on the scale at predetermined intervals, and if the storage compartment is pulled out, checks the weight of the contents on the scale when it is subsequently locked, compares the weight of the contents on the scale with the weight of the inventory read from the storage unit, and if there is a change in weight, stores the weight of the contents on the scale as the new inventory weight in the storage unit, in a security box device, The control unit, After specifying the storage chamber, the validation of the scale is instructed to begin, and then the user authenticated by the biometric authentication unit pulls out the unlocked storage chamber, places the calibrated weights on the scale, and pushes the storage chamber all the way in. If the storage chamber is locked as a result, the weight of the contents on the scale is confirmed. The weight of the inventory is read from the storage unit, and this inventory weight is compared with the weight of the contents on the scale to determine whether the weight difference is within a preset tolerance range. If the weight difference is within the acceptable range, information indicating that the scale is functioning correctly will be notified; if the weight difference exceeds the acceptable range, information indicating that the scale is not functioning correctly will be notified. A security box device characterized by the following features.

5. The tolerance range can be set in advance according to the measurement accuracy required for the contents. A security box device according to any one of claims 1 to 4.

Images