Medical consumable management system and management method

Abstract

The invention discloses a medical consumable management system and method, the system comprises a cabinet body, an RFID read-write device, a first label and a second label, the cabinet body comprises cabinet walls and a hollow area enclosed by the cabinet walls, and medical consumables are accommodated in the hollow area; the RFID read-write device is arranged in the cabinet body; the first tag is arranged on the medical consumable and is used for feeding back medical consumable information when receiving the RFID scanning signal; the second label is arranged on the cabinet wall and is used for feeding back positioning information when receiving the RFID scanning signal; and when the RFID read-write device does not receive the positioning information after sending the RFID scanning signal, the RFID read-write device sends the scanning signal to the position where the second tag is located. According to the embodiment of the invention, the second label is set as the scanning positioning mark, whether scanning leakage or scanning errors occur is judged according to whether the scanning positioning mark is scanned, and when scanning leakage or scanning errors occur, the scanning positioning mark is used for positioning the area which is not scanned, and re-scanning is carried out according to the positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of new generation information technology and biomedicine industry, and in particular to a medical consumables management system and management method. Background Art

[0002] Most existing medical consumable cabinets use a fixed RFID (Radio Frequency Identification) antenna to scan RFID tags of medical consumables placed in the cabinet to obtain information about the medical consumables.

[0003] However, in actual use, factors such as the reflection and superposition of RFID signals in the cabinet, the shielding of the signal by the metal material of the cabinet, and the position and shape of the RFID tag may cause the RFID scanning information to be missed or failed. At the same time, the existing technology cannot determine whether there is a missed scan or a scanning failure when scanning the RFID tag, which may lead to incomplete or erroneous data in the management of medical consumables. Summary of the invention

[0004] The purpose of the present invention is to provide a medical consumables management system and management method, aiming to solve the problem in the prior art that when scanning medical consumables information through RFID, there is omission or scanning failure, which leads to incomplete data or data errors in the management of medical consumables.

[0005] In a first aspect, an embodiment of the present invention provides a medical consumables management system, including:

[0006] The cabinet body comprises a cabinet wall and a hollow area surrounded by the cabinet wall, and the medical consumables are accommodated in the hollow area;

[0007] An RFID reader / writer, disposed in the cabinet, for sending RFID scanning signals or receiving feedback information;

[0008] A first tag is disposed on the medical consumable and is used to feedback the medical consumable information upon receiving an RFID scanning signal;

[0009] A second tag is disposed on the cabinet wall and is used to feedback positioning information when receiving an RFID scanning signal;

[0010] Wherein, when the RFID reading and writing device does not receive the positioning information after sending the RFID scanning signal, it sends a scanning signal to the location of the second tag.

[0011] Furthermore, it also includes a driving device, which is installed on the cabinet wall and is used to rotate or move the RFID reading and writing device when the RFID reading and writing device does not receive positioning information after sending the RFID scanning signal, so that the RFID reading and writing device sends an RFID scanning signal to the location of the second tag.

[0012] Furthermore, the cabinet wall includes a plurality of preset positioning positions, the second tags include a plurality, each of the second tags is fixed at a corresponding positioning position on the cabinet wall, the driving device includes a servo motor, and the RFID reader / writer includes a transceiver antenna. When the RFID reader / writer does not receive positioning information fed back by any of the second tags after sending an RFID scanning signal, the servo motor rotates the transceiver antenna toward the positioning position corresponding to the second tag on the cabinet wall that has not fed back positioning information, so as to send an RFID scanning signal.

[0013] Furthermore, it also includes a limit switch and a controller, the transceiver antenna has an initial scanning direction, when the transceiver antenna rotates from the initial scanning direction by a preset angle α0, the transceiver antenna triggers the limit switch, the controller is used to send a pulse signal to the servo motor at a preset frequency so that the servo motor drives the transceiver antenna to rotate from the initial scanning direction, when the servo motor rotates the transceiver antenna to trigger the limit switch, the limit switch is used to send a reset signal to the controller, and the controller is also used to obtain the number of pulses m that have been sent when receiving the reset signal.

[0014] Furthermore, the second tags include n tags, which are respectively arranged at rotation angles α1, α2, ..., α n The controller is also used to obtain the lost second tag X from the database and send α to the servo motor when the RFID reader / writer does not receive all the positioning information fed back by the second tag after sending the RFID scanning signal. x *m / α0 pulse signals, where α x It is the rotation angle of the initial scanning direction when the transceiver antenna rotates to face the position where the lost second tag X is located.

[0015] In a second aspect, an embodiment of the present invention provides a medical consumables management method, which is applied to the medical consumables management system, comprising:

[0016] Controlling the RFID reader / writer to send RFID scanning signals to the first tag and the second tag or to receive feedback information;

[0017] When the feedback information includes the medical consumables information fed back by the first tag, acquiring the medical consumables information;

[0018] When the feedback information does not include the positioning information fed back by the second tag, an RFID scanning signal is sent to the location of the second tag.

[0019] Furthermore, when the feedback information does not include the positioning information fed back by the second tag, sending the RFID scanning signal to the location of the second tag includes:

[0020] When the feedback information does not include the positioning information fed back by the second tag, the RFID reading and writing device is rotated or moved so that the RFID reading and writing device sends an RFID scanning signal to the location of the second tag.

[0021] Furthermore, the second tag includes a plurality of tags, each of which is fixed to a plurality of preset positioning positions on the cabinet wall, and when the feedback information does not include the feedback positioning information of the second tag, rotating or moving the RFID reader / writer so that the RFID reader / writer sends a scanning signal to the position where the second tag is located includes:

[0022] When the feedback information does not include the positioning information fed back by any second tag, the transceiver antenna of the RFID reader / writer is rotated toward the positioning position corresponding to the second tag on the cabinet wall that has not fed back positioning information, so as to send the RFID scanning signal.

[0023] Furthermore, a driving device is provided on the cabinet wall, and the driving device includes a servo motor. The method further includes:

[0024] Sending a pulse signal to the servo motor at a preset frequency so that the servo motor drives the transceiver antenna of the RFID reader / writer to rotate from the initial scanning direction by a preset angle α0 to trigger the limit switch;

[0025] Sending a reset signal when the transceiver antenna triggers the limit switch;

[0026] When the reset signal is received, the number of pulses m that have been sent is obtained.

[0027] Furthermore, it also includes:

[0028] Rotate the initial scanning direction by angles α1, α2, ...α n Set n second tags at the scanning direction position;

[0029] When the feedback information does not include the feedback positioning information of the second tag, rotating or moving the RFID reader / writer so that the RFID reader / writer sends a scanning signal to the location of the second tag includes:

[0030] When the RFID reader / writer does not receive all the positioning information fed back by the second tag after sending the RFID scanning signal, the lost second tag positioning information X is obtained from the database;

[0031] Send α to the servo motor x *m / α0 pulses, where α x It is the rotation angle of the initial scanning direction when the transceiver antenna rotates to face the position where the lost second tag X is located.

[0032] The embodiment of the present invention sets a second tag as a scanning positioning mark, and determines whether a missed scan or a scanning error occurs by scanning the scanning positioning mark. When a missed scan or a scanning error occurs, the missed scan area is located by scanning the positioning mark and rescanned according to the positioning, thereby solving the problem in the prior art that missed scans or scanning failures occur when scanning medical consumables information through RFID, thereby easily resulting in incomplete data or data errors in the management of medical consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of the structure of a medical consumables management system provided by an embodiment of the present invention;

[0035] Figure 2 Another structural schematic diagram of the medical consumables management system provided by an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of the structure of the medical consumables management system provided by an embodiment of the present invention after some structures are hidden;

[0037] Figure 4 Another structural schematic diagram of the medical consumables management system provided by an embodiment of the present invention;

[0038] Figure 5 for Figure 4 Schematic diagram of the cross section along AA;

[0039] Figure 6 for Figure 5 A magnified schematic diagram of the middle B area;

[0040] Figure 7 A structural block diagram of a medical consumables management system provided by an embodiment of the present invention;

[0041] Figure 8 A schematic diagram of a process flow of a medical consumables management method provided by an embodiment of the present invention;

[0042] Fig. 9 Another schematic diagram of the process of the medical consumables management method provided by the embodiment of the present invention;

[0043] Fig.10 Another schematic diagram of the process of the medical consumables management method provided in an embodiment of the present invention.

[0044] Reference numerals:

[0045] 10. Cabinet wall; 20. Second tag; 30. Driving device; 40. Transceiver antenna. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0048] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0049] It should be further understood that the term "and / or" used in the present description and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0050] Figure 2 , Figure 3 , Figure 4 and Figure 5 The first label and the second label are not shown. The first label is set on the medical consumables, and the medical consumables are placed inside the cabinet. The second label can be pasted or hung at a preset position on the cabinet wall.

[0051] Please refer to Figure 1-7 , a medical consumables management system, comprising:

[0052] The cabinet body includes a cabinet wall 10 and a hollow area enclosed by the cabinet wall 10, and medical consumables are accommodated in the hollow area;

[0053] RFID (Radio Frequency Identification) reader / writer, installed in the cabinet, used to send RFID scanning signals or receive feedback information;

[0054] The first tag is disposed on the medical consumables and is used to feedback the medical consumables information when receiving the RFID scanning signal;

[0055] The second tag 20 is disposed on the cabinet wall 10 and is used to feedback positioning information when receiving an RFID scanning signal;

[0056] When the RFID reader / writer does not receive the positioning information after sending the RFID scanning signal, it sends a scanning signal to the location of the second tag 20 .

[0057] In this embodiment, the first tag records the medical consumables information, and the second tag 20 records the positioning information.

[0058] Specifically, the second tag 20 feeds back positioning information after receiving the RFID scanning signal, and after the RFID reader / writer reads the positioning information, it can be determined that both the first tag and the second tag 20 in the direction have received the RFID scanning signal;

[0059] When the RFID reader / writer fails to read the positioning information, two situations may occur. One is that the second tag 20 is faulty and the second tag 20 cannot receive the RFID scanning signal and / or feedback positioning information. The other is that the RFID scanning signal sent by the RFID reader / writer is not sent to the location of the second tag 20. In order to avoid missing the first tag, the RFID reader / writer continues to send the RFID scanning signal to the location of the second tag 20 until the positioning information fed back by the second tag 20 is read. If the positioning information of the second tag 20 cannot be obtained after repeatedly sending the RFID scanning signal and waiting for the preset time, the second tag 20 is determined to be faulty and the relevant department is notified for repair.

[0060] A second tag 20 with known positioning information is set, and the positioning information is obtained by the RFID reader / writer. This means that the scanning of the first tag at the location of the second tag 20 has been completed, that is, the acquisition of the medical consumables information of the first tag in the area has been completed; if the RFID reader / writer does not receive the positioning information fed back by the second tag, it means that the scan is missed, that is, the scan of the first tag in the area is not comprehensive. The RFID reader / writer can locate the missed scanned place and rescan it according to the positioning, so as to comprehensively count and call the data and avoid errors in the calling result due to missing data.

[0061] In one embodiment, it further includes:

[0062] The driving device 30 is installed on the cabinet wall 10 and is used to rotate or move the RFID reader / writer when the RFID reader / writer does not receive positioning information after sending the RFID scanning signal, so that the RFID reader / writer sends the RFID scanning signal to the location of the second tag 20.

[0063] In this embodiment, when the tag information is obtained by the RFID reader / writer installed on the cabinet wall 10, the scanning information sent by the RFID reader / writer is reflected in the cabinet, resulting in the waveform overlap of the electromagnetic wave in the cabinet, which in turn leads to the waveform enhancement in some areas of the cabinet and the waveform weakening in some areas. If the waveform weakened area has a first label, it may be impossible to obtain the medical consumables information of the first label in the area. Therefore, a driving device 30 is provided, and the driving device 30 drives the RFID reader / writer to rotate or move, so as to move the RFID reader / writer to the positioning position corresponding to the second tag for feedback positioning information, so as to make the second tag 20 receive the strongest RFID scanning signal as possible, so as to complete the scanning of the first label at the position where the second tag 20 is located.

[0064] The rotation action can be achieved by a rotating motor or a similar mechanism that can achieve a rotation function.

[0065] The moving action can be achieved by a telescopic rod or a similar mechanism that can achieve the moving function.

[0066] In one embodiment, the cabinet wall 10 includes a plurality of preset positioning positions, the second tag 20 includes a plurality of second tags 20, each second tag 20 is fixed at a corresponding positioning position on the cabinet wall 10, the driving device 30 includes a servo motor, and the RFID reader / writer includes a transceiver antenna 40. When the RFID reader / writer does not receive positioning information fed back by any second tag 20 after sending an RFID scanning signal, the servo motor rotates the transceiver antenna 40 toward the positioning position corresponding to the second tag 20 on the cabinet wall 10 that has not fed back positioning information, so as to send an RFID scanning signal.

[0067] In this embodiment, in order to cover as many areas or angles as possible where the first labels are set, a plurality of first labels are set;

[0068] The second tags 20 may be randomly distributed on the cabinet wall 10 , or may be regularly distributed on the cabinet wall 10 at certain angle intervals or distance intervals.

[0069] If they are scattered on the cabinet wall 10, the cabinet wall 10 can be divided into several rectangular modules. There are at least a preset number of second labels 20 in any rectangular module. The preset number can be 1 or 2, and so on. It can be set according to actual conditions. When the rectangular module is relatively small, the preset number can be smaller. When the rectangular module is relatively large, the preset number can be larger.

[0070] If the second tags 20 are regularly distributed on the cabinet wall at certain angle intervals or distance intervals, the setting can be made according to the range of the RFID scanning signal that the second tag 20 can actually receive.

[0071] This embodiment discloses a solution for implementing the rotation operation. Mainly, the driving device 30 rotates the RFID reader / writer so that the RFID reader / writer sends an RFID scanning signal to the location of the second tag 20 .

[0072] Among them, the driving device 30 uses a servo motor, and the driving end of the servo motor is connected to the transceiver antenna 40. The RFID scanning signal sent by the transceiver antenna 40 has an angle range limitation, so it is necessary to drive the transceiver antenna 40 through the servo motor toward the positioning position corresponding to the second tag 20 that has not fed back the positioning information, so that the second tag 20 that has not fed back the positioning information can receive a stronger RFID scanning signal, and the second tag 20 will feed back the positioning information after receiving the RFID scanning signal.

[0073] In another embodiment, a mobile operation implementation scheme is disclosed, in which the driving device 30 includes a longitudinal telescopic rod and a transverse telescopic rod, the driving end of the longitudinal telescopic rod is connected to the transverse telescopic rod, and the driving end of the transverse telescopic rod is connected to the transceiver antenna 40. When the RFID reader / writer does not receive the positioning information fed back by any second tag 20 after sending the RFID scanning signal, the driving device 30 moves the transceiver antenna 40 to the positioning position corresponding to the second tag 20 on the cabinet wall 10 that has not fed back the positioning information, so as to send the RFID scanning signal.

[0074] In this embodiment, the longitudinal telescopic rod and the transverse telescopic rod serve as two axes in the coordinate system. Driving the longitudinal telescopic rod will move the transceiver antenna 40 in the longitudinal direction, and driving the transverse telescopic rod will move the transceiver antenna 40 in the transverse direction. Combining the two, the transceiver antenna 40 can be accurately moved to the positioning position on the cabinet wall 10.

[0075] In one embodiment, a limit switch and a controller are also included. The transceiver antenna 40 has an initial scanning direction. When the transceiver antenna 40 rotates from the initial scanning direction by a preset angle α0, the transceiver antenna 40 triggers the limit switch. The controller is used to send a pulse signal to the servo motor at a preset frequency so that the servo motor drives the transceiver antenna 40 to rotate from the initial scanning direction. When the servo motor rotates the transceiver antenna 40 to trigger the limit switch, the limit switch is used to send a reset signal to the controller. The controller is also used to obtain the number of pulses m that have been sent when the reset signal is received.

[0076] In this embodiment, a limit switch is set to initialize the transceiver antenna. Specifically, when the controller is restarted, or when the second tag 20 that has not fed back positioning information has been rotated once, or the cabinet shakes due to various external reasons, etc., it is easy to cause the current position information of the transceiver antenna to be inaccurate. The servo motor first controls the transceiver antenna to rotate to the limit switch, the transceiver antenna triggers the limit switch, the limit switch sends a reset signal to the controller, and the controller sends the pulse number m corresponding to the preset angle α0 to the servo motor, so that the servo motor rotates to the initial position according to the pulse number m, and then completes the initialization of the transceiver antenna 40. Among them, the rotation of the servo motor is controlled by the number of pulses. The servo motor will accurately subdivide 1°, which can be subdivided into 32 corresponding pulses, 64 corresponding pulses, etc., according to the accuracy setting required by the user, and the rotation of the servo motor is controlled by the number of pulses, which effectively enhances the accuracy of the servo motor rotation angle, so that the servo motor drives the transceiver antenna to rotate to the initial position, or the accurate position of the second tag, improves the electromagnetic wave intensity in the area, and enhances the recognition rate of the position of the second tag.

[0077] Specifically, when the transceiver antenna 40 touches the limit switch, the limit switch sends a reset signal to the controller. When the controller receives the reset signal, the controller obtains m pulses and sends m pulse signals to the servo motor, so that the servo motor drives the transceiver antenna to rotate to the initial position, wherein the initial position is generally a horizontal position, that is, the position where the transceiver antenna faces the bottom of the cabinet. It can be understood that the position of the limit switch can be set according to actual conditions. In order to increase the large-area scanning inside the cabinet, the rotation range from the initial position to the limit switch is 0°-90°. When the transceiver antenna rotates to near 90°, that is, rotates to the vertical direction near the cabinet, this is the maximum limit position of the limit switch.

[0078] In this embodiment, after the transceiver antenna rotates to the initial position, the number of pulses required for a rotation of 1° can be calculated by calculating m / α0, and then the number of pulses required for the angle can be calculated according to the known rotation angle corresponding to the positioning position of the second tag.

[0079] In one embodiment, the second tags 20 include n tags, which are respectively arranged at rotation angles α1, α2, . . . α n The controller is also used to obtain the lost second tag X from the database and send α to the servo motor when the RFID reader / writer does not receive all the positioning information fed back by the second tag 20 after sending the RFID scanning signal. x *m / α0 pulse signals, where α x It is the rotation angle of the initial scanning direction when the transceiver antenna 40 rotates to face the position where the lost second tag X is located.

[0080] In this embodiment, if the RFID reader / writer does not receive the positioning information fed back by multiple second tags, the controller needs to control the servo motor to rotate the transceiver antenna to the position of the corresponding second tag in sequence. Each time a rotation is completed, the transceiver antenna needs to be reset to reduce the accumulated position error of the transceiver antenna during the rotation process, which is conducive to calculating the number of pulses and precise positioning.

[0081] Specifically, when there are multiple lost second tags 20, RFID scanning signals will be sent one by one toward the locations of the multiple second tags. The order in which the controller drives the servo motor to execute can be the order recorded in the database (which records the positioning and marking of each second tag 20 and other related information); it can also be randomly selected, and each time the RFID scanning signal is sent, all the lost second tags 20 are collected, and a lost second tag 20 is randomly selected again for the orientation operation, and the cycle is repeated; in other embodiments, it can also be other methods, which can be set according to actual conditions.

[0082] Specifically, the calculation method is α x Multiply by the number of pulses required to rotate 1° to get the number of pulses that the controller needs to send. When the transceiver antenna rotates 40° from the initial position to the location of the second tag, the controller starts the servo motor 40°. * m / α0 pulse signals to achieve precise rotation of the servo motor.

[0083] refer to Figure 5 In another embodiment, the medical consumables cabinet further includes a plurality of transceiver antennas 40 and a plurality of drive devices 30. The plurality of transceiver antennas 30 and the plurality of drive devices 40 are arranged in one-to-one correspondence and are respectively distributed on the upper top surface, left side surface, right side surface and bottom surface of the cabinet wall 10, thereby effectively expanding the scanning range of the transceiver antenna 40 for the first tag and the second tag to avoid omissions.

[0084] Please refer to Figure 8 , a medical consumables management method, used in a medical consumables management system, comprising:

[0085] Step S101, controlling the RFID reading and writing device to send RFID scanning signals to the first tag and the second tag or receive feedback information;

[0086] Step S102, when the feedback information includes the medical consumables information fed back by the first tag, obtaining the medical consumables information;

[0087] Step S103: When the feedback information does not include the positioning information fed back by the second tag, an RFID scanning signal is sent to the location of the second tag.

[0088] In this embodiment, specific reference may be made to the above description of the embodiment regarding the controller, the first tag, and the second tag.

[0089] Specifically, the first tag records the medical consumables information, and the second tag 20 records the positioning information. When the second tag 20 feeds back the positioning information after receiving the RFID scanning signal, after the RFID reader / writer reads the positioning information, it can be determined that both the first tag and the second tag 20 in the direction have received the RFID scanning signal; when the feedback information does not include the positioning information fed back by the second tag, it can be known that the multiple first tags corresponding to the area where the second tag is located have not been scanned, so it is necessary to send the RFID scanning signal to the area again for multiple scans.

[0090] It can be understood that, by setting a second tag 20 with known positioning information and acquiring the positioning information through the RFID reader / writer, it means that the scanning of the first tag at the location of the second tag 20 has been completed, that is, the acquisition of the medical consumables information of the first tag in the area has been completed; if the RFID reader / writer does not receive the positioning information fed back by the second tag, it means that the scan is missed, that is, the scan of the first tag in the area is not comprehensive. The RFID reader / writer can locate the missed scanned place and rescan it according to the positioning, so as to comprehensively count and call the data and avoid errors in the call result due to missing data.

[0091] In one embodiment, when the feedback information does not include the positioning information fed back by the second tag, sending the RFID scanning signal to the location of the second tag includes:

[0092] When the feedback information does not include the positioning information fed back by the second tag, the RFID reading and writing device is rotated or moved so that the RFID reading and writing device sends an RFID scanning signal to the location of the second tag.

[0093] In this embodiment, the details can be referred to the above description of the embodiment of the driving device. The RFID reader / writer is driven by rotation or movement so that the RFID reader / writer sends an RFID scanning signal to the location of the second tag.

[0094] Specifically, when the tag information is obtained by using an RFID reader / writer installed on the cabinet wall 10, the scanning information sent by the RFID reader / writer is reflected in the cabinet, resulting in the waveform overlap of the electromagnetic wave in the cabinet, which in turn causes the waveform to be enhanced in some areas of the cabinet and weakened in some areas. If the area with weakened waveform has a first label, it may be impossible to obtain the medical consumables information of the first label in this area. Therefore, a driving device 30 is provided, and the driving device 30 drives the RFID reader / writer to rotate or move, so as to move the RFID reader / writer to the positioning position corresponding to the second label for feedback positioning information, so as to make the second label 20 receive a stronger RFID scanning signal as possible, so as to complete the scanning of the first label at the position where the second label 20 is located.

[0095] In one embodiment, the second tag includes a plurality of tags, each of which is fixed to a plurality of preset positioning positions on the cabinet wall. When the feedback information does not include the feedback positioning information of the second tag, rotating or moving the RFID reader / writer so that the RFID reader / writer sends a scanning signal to the position where the second tag is located includes:

[0096] When the feedback information does not include the positioning information fed back by any second tag, the transceiver antenna of the RFID reader is rotated toward the positioning position corresponding to the second tag on the cabinet wall that has not fed back the positioning information, so as to send an RFID scanning signal.

[0097] In this embodiment, specific reference may be made to the above description of the embodiment regarding the servo motor.

[0098] The invention discloses a method of driving an RFID reader / writer in a rotational manner so as to enable the RFID reader / writer to send an RFID scanning signal to a position where a second tag is located.

[0099] Specifically, the driving device 30 uses a servo motor, and the driving end of the servo motor is connected to the transceiver antenna 40. The RFID scanning signal sent by the transceiver antenna 40 has an angle range limitation, so it is necessary to drive the transceiver antenna 40 through the servo motor toward the positioning position corresponding to the second tag 20 that has not fed back the positioning information, so that the second tag 20 that has not fed back the positioning information can receive a stronger RFID scanning signal, and the second tag 20 will feed back the positioning information after receiving the RFID scanning signal.

[0100] In another embodiment, a mobile operation implementation scheme is disclosed, in which the driving device 30 includes a longitudinal telescopic rod and a transverse telescopic rod, the driving end of the longitudinal telescopic rod is connected to the transverse telescopic rod, and the driving end of the transverse telescopic rod is connected to the transceiver antenna 40. When the RFID reader / writer does not receive the positioning information fed back by any second tag 20 after sending the RFID scanning signal, the driving device 30 moves the transceiver antenna 40 to the positioning position corresponding to the second tag 20 on the cabinet wall 10 that has not fed back the positioning information, so as to send the RFID scanning signal.

[0101] Please refer to Fig. 9 In one embodiment, the medical consumables management method further includes:

[0102] Step S201, sending a pulse signal to the servo motor at a preset frequency so that the servo motor drives the transceiver antenna of the RFID reader / writer to rotate from the initial scanning direction to a preset angle α0 to trigger the limit switch;

[0103] Step S202, sending a reset signal when the transceiver antenna triggers the limit switch;

[0104] Step S203, when a reset signal is received, the number of pulses m that have been sent is obtained.

[0105] In this embodiment, specific reference may be made to the above description of the embodiment regarding the limit switch.

[0106] Specifically, a limit switch (reset function) is set to initialize the transceiver antenna. When the controller is restarted, or when the second tag 20 that has not fed back positioning information has been rotated once, or when the cabinet shakes due to various external reasons, the current position information of the transceiver antenna is easily inaccurate. A reset signal is sent through the limit switch to reset the transceiver antenna 40, and then the controller sends a pulse number to control the servo motor to drive the transceiver antenna 40 to rotate a specific angle to the position of the second tag 20 that has not fed back positioning information. It can be understood that by controlling the rotation of the servo motor through the number of pulses, the accuracy of the servo motor's rotation angle is effectively enhanced, so that the servo motor drives the transceiver antenna to rotate to the exact position of the second tag, thereby increasing the electromagnetic wave intensity in the area and enhancing the recognition rate of the second tag's position.

[0107] Please refer to Fig.10 In one embodiment, the initial scanning direction is rotated by angles α1, α2, ... α n Set n second tags at the scanning direction position;

[0108] When the feedback information does not include the feedback positioning information of the second tag, rotating or moving the RFID reader / writer to enable the RFID reader / writer to send a scanning signal to the location of the second tag includes:

[0109] Step S301, when the RFID reader / writer does not receive all the positioning information fed back by the second tag after sending the RFID scanning signal, the lost second tag positioning information X is obtained from the database;

[0110] Step S302, sending α to the servo motor x *m / α0 pulses, where α x It is the rotation angle of the initial scanning direction when the transceiver antenna rotates to face the position where the lost second tag X is located.

[0111] In this embodiment, specific reference may be made to the above description of the embodiment regarding n second tags.

[0112] In this embodiment, if the RFID reader / writer does not receive the positioning information fed back by multiple second tags, the controller needs to control the servo motor to rotate the transceiver antenna to the position of the corresponding second tag in sequence. Each time a rotation is completed, the transceiver antenna needs to be reset to avoid the accumulated position error of the transceiver antenna during the rotation process, which is conducive to calculating the number of pulses and precise positioning.

[0113] Specifically, when there are multiple lost second tags 20, the RFID scanning signal will be sent one by one towards the positions where the multiple second tags are located. The order in which the controller drives the servo motor to execute can be the order recorded in the database (which records the location and marking of each second tag 20 and other related information); it can also be randomly selected, and each time the RFID scanning signal is sent, all the lost second tags 20 are collected, and a lost second tag 20 is randomly selected again for orientation operation, and the cycle is repeated; in other embodiments, it can also be other methods, which can be set according to actual conditions. It can be understood that the calculation method is α x Multiply by the number of pulses required to rotate 1° to get the number of pulses that the controller needs to send. When the transceiver antenna rotates 40° from the initial position to the location of the second tag, the controller starts the servo motor 40°. * m / α0 pulse signals to achieve precise rotation of the servo motor.

[0114] In one embodiment, when the RFID reader / writer sends an RFID scanning signal toward the same second tag for a preset number of times, the controller determines that the corresponding second tag is a faulty tag and sends a fault signal;

[0115] The controller drives the transceiver antenna of the RFID reader / writer to rotate until the limit switch is triggered, and re-controls the transceiver antenna of the RFID reader / writer to face the second tag that has not fed back the positioning information;

[0116] The fault signal includes the location information of the fault tag.

[0117] In this embodiment, a delay mechanism is used to avoid repeatedly sending too many RFID scanning signals to the faulty second tag, thereby wasting power and time.

[0118] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A medical consumables management system, characterized in that: include: The cabinet body comprises a cabinet wall and a hollow area surrounded by the cabinet wall, and the medical consumables are accommodated in the hollow area; An RFID reading and writing device, including a transceiver antenna, is disposed in the cabinet and is used to send RFID scanning signals or receive feedback information; A first tag is disposed on the medical consumable and is used to feedback the medical consumable information upon receiving an RFID scanning signal; A second tag is disposed on the cabinet wall and is used to feedback positioning information when receiving an RFID scanning signal; Wherein, when the RFID reader / writer does not receive the positioning information after sending the RFID scanning signal, it sends a scanning signal to the location of the second tag; A driving device, including a servo motor, is installed on the cabinet wall and is used to move the RFID reading and writing device when the RFID reading and writing device does not receive the positioning information after sending the RFID scanning signal, so that the RFID reading and writing device sends the RFID scanning signal to the location of the second tag; In which, the driving device includes a longitudinal telescopic rod and a transverse telescopic rod, the driving end of the longitudinal telescopic rod is connected to the transverse telescopic rod, and the driving end of the transverse telescopic rod is connected to the transceiver antenna. When the RFID reader / writer does not receive the positioning information fed back by any second tag after sending the RFID scanning signal, the driving device moves the transceiver antenna to the positioning position corresponding to the second tag on the cabinet wall that has not fed back the positioning information, so as to send the RFID scanning signal.

2. The medical consumables management system according to claim 1, characterized in that: The driving device is also used to rotate the RFID reading and writing device when the RFID reading and writing device does not receive positioning information after sending the RFID scanning signal, so that the RFID reading and writing device sends the RFID scanning signal to the location of the second tag.

3. The medical consumables management system according to claim 2, characterized in that: It also includes a limit switch and a controller, the transceiver antenna has an initial scanning direction, when the transceiver antenna rotates from the initial scanning direction by a preset angle α0, the transceiver antenna triggers the limit switch, the controller is used to send a pulse signal to the servo motor at a preset frequency so that the servo motor drives the transceiver antenna to rotate from the initial scanning direction, when the servo motor rotates the transceiver antenna to trigger the limit switch, the limit switch is used to send a reset signal to the controller, when the controller receives the reset signal, obtains m pulse numbers, and sends m pulse signals to the servo motor, so that the servo motor drives the transceiver antenna to rotate to the initial position.

4. The medical consumables management system according to claim 3, characterized in that: The second tags include n tags, which are respectively arranged at a rotation angle α in the initial scanning direction. 1、 α2...α n The controller is also used to obtain the lost second tag X from the database and send α to the servo motor when the RFID reader / writer does not receive all the positioning information fed back by the second tag after sending the RFID scanning signal. x *m / α0 pulse signals, where α x It is the rotation angle of the initial scanning direction when the transceiver antenna rotates to face the position where the lost second tag X is located.

5. The medical consumables management system according to claim 4, characterized in that: It comprises a plurality of the transceiver antennas and a plurality of the drive devices, which are arranged in one-to-one correspondence and are respectively distributed on the upper top surface, left side surface, right side surface and bottom surface of the cabinet wall.

6. A method for managing medical consumables, characterized in that: Applicable to any one of claims 1 to 5 of the medical consumables management system, comprising: Controlling the RFID reader / writer to send RFID scanning signals to the first tag and the second tag or to receive feedback information; When the feedback information includes the medical consumables information fed back by the first tag, acquiring the medical consumables information; When the feedback information does not include the positioning information fed back by the second tag, sending an RFID scanning signal to the location of the second tag; Among them, when the RFID reading and writing device does not receive any positioning information fed back by the second tag after sending the RFID scanning signal, the transceiver antenna is moved to the positioning position corresponding to the second tag on the cabinet wall that has not fed back positioning information to send the RFID scanning signal.

7. The medical consumables management method according to claim 6, characterized in that: When the feedback information does not include the positioning information fed back by the second tag, sending the RFID scanning signal to the location of the second tag includes: When the feedback information does not include the positioning information fed back by the second tag, the RFID reading and writing device is rotated so that the RFID reading and writing device sends an RFID scanning signal to the location of the second tag.

8. The medical consumables management method according to claim 7, characterized in that: The second tags include a plurality of tags, each of which is fixed to a plurality of preset positioning positions on the cabinet wall, and when the feedback information does not include the feedback positioning information of the second tag, rotating or moving the RFID reader / writer so that the RFID reader / writer sends a scanning signal to the position where the second tag is located includes: When the feedback information does not include the positioning information fed back by any second tag, the transceiver antenna of the RFID reader / writer is rotated toward the positioning position corresponding to the second tag on the cabinet wall that has not fed back positioning information, so as to send the RFID scanning signal.

9. The medical consumables management method according to claim 8, characterized in that: The method further comprises: Sending a pulse signal to the servo motor at a preset frequency so that the servo motor drives the transceiver antenna of the RFID reader / writer to rotate from the initial scanning direction by a preset angle α0 to trigger a limit switch; Sending a reset signal when the transceiver antenna triggers the limit switch; When the reset signal is received, the number of pulses m that have been sent is obtained.

10. The medical consumables management method according to claim 9, characterized in that: Also includes: Rotate the initial scanning direction by an angle α 1、 α2...α n Set n second tags at the scanning direction position; When the feedback information does not include the feedback positioning information of the second tag, rotating or moving the RFID reader / writer so that the RFID reader / writer sends a scanning signal to the location of the second tag includes: When the RFID reader / writer does not receive all the positioning information fed back by the second tag after sending the RFID scanning signal, the lost second tag positioning information X is obtained from the database; Send α to the servo motor x *m / α0 pulses, where α x It is the rotation angle of the initial scanning direction when the transceiver antenna rotates to face the position where the lost second tag X is located.

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