CN116306721B - High-throughput RFID identification device and management system for medical supplies - Google Patents
High-throughput RFID identification device and management system for medical supplies Download PDFInfo
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Abstract
The invention relates to the technical field of RFID (radio frequency identification), in particular to high-throughput RFID identification equipment and a management system for medical supplies. The apparatus includes an RFID identification channel and a transport mechanism for transporting medical supplies through the RFID identification channel; an RFID reading module for reading an RFID tag on the medical article is arranged in the RFID identification channel; the apparatus includes a plurality of RFID antennas positioned within the RFID identification channel and disposed around the transport mechanism; the RFID antenna is configured to have a horizontal transmission lobe width of 20-30 DEG at an operating frequency thereof; the RFID reading device is arranged to sequentially start and stop each RFID antenna to read RFID tags within the lobe range when medical articles pass. The invention also discloses a medical article management system for identifying medical articles by using the device. The method solves the technical problems that misreading and serial reading are often caused by excessive number of RFID labels read simultaneously in the prior art.
Description
Technical Field
The invention relates to the technical field of RFID (radio frequency identification), in particular to high-throughput RFID identification equipment and a management system for medical supplies.
Background
In the current process of medical supplies warehouse entry, the current flow is that a distributor delivers goods to a hospital warehouse, the hospital warehouse checks medical supplies list firstly, warehouse manager checks information such as the quantity and the validity of medical supplies, the medical supplies warehouse entry is performed by manually inputting the information of the medical supplies in a hospital office system, and therefore, in the current management mode, the supplied materials are longer in time due to the fact that the medical supplies are of various types and high distribution frequency, and the risk of missed is increased in the whole-course manual management.
At present, the efficiency of input work can be greatly improved by utilizing the RFID identification technology to manage the input and output of articles, and the automatic check-in/release of medical articles in input and output can be realized by matching with a management system, but because the medical articles are densely packed in an external packing box in a packing mode, the input and output of the medical articles are required to be accurate, which means that each medical article needs to be stuck with an RFID tag, and because more articles, departments and the like are involved in the input and output of the articles are managed, when the traditional RFID reading equipment is utilized to read the RFID tags with high flux on a test piece of the whole piece, misread and serial read are often caused due to the fact that the quantity of the RFID tags which are read simultaneously is classified and excessive.
Disclosure of Invention
The invention aims to provide high-throughput RFID identification equipment for medical supplies, which solves the technical problems that misreading and serial reading are often caused by excessive number of RFID labels read simultaneously in the prior art.
The high-throughput RFID identification device for medical supplies comprises an RFID identification channel and a conveying mechanism for conveying the medical supplies through the RFID identification channel, and is characterized in that:
an RFID reading module for reading an RFID tag on the medical article is arranged in the RFID identification channel;
the apparatus includes a plurality of RFID antennas positioned within the RFID identification channel and disposed around the transport mechanism;
the RFID antenna is configured to have a horizontal transmission lobe width of 20-30 DEG at an operating frequency thereof;
the RFID reading equipment is arranged to sequentially start and stop each RFID antenna to read RFID tags in the lobe range when medical supplies pass;
the number of the RFID antennas is four, and the RFID antennas are uniformly distributed in the four directions of the upper, lower, left and right of the conveying mechanism;
the RFID antennas are arranged on the same plane perpendicular to the conveying direction of the conveying mechanism;
the RFID identification system also comprises sensors respectively positioned at the two sides of the inlet and the outlet of the RFID identification channel, wherein the sensors are used for sensing whether an article passes or not;
the intelligent terminal is electrically connected with the RFID identification equipment;
the intelligent terminal is connected with the sensor; the intelligent terminal is internally provided with the following algorithm:
s1, according to the conveying speed V of a conveying belt, presetting a matching interval length L, and calculating preset label matching interval time t=L/V;
s2, recording the time T when the first medical article triggers the RFID identification channel inlet side sensor 1 ；
S3, judging from T 1 Whether a second medical article triggers the sensor within the starting time,
if so, recording the moment T when the second medical article triggers the RFID identification channel inlet side sensor 2 Recording the label matching time interval of the first medical article as [ T ] 1 ，T 2 ]Simultaneously updating data T 1 ＝T 2 And returning to the judgment;
if not, recording the label matching time interval of the first medical article as [ T ] 1 ，T 1 +t]；
S4, taking out the RFID tag data cached in the matching time interval corresponding to each medical article in the RFID reading equipment; s5, distinguishing the validity of the read RFID tag data in the matching time interval corresponding to each medical article;
if no effective RFID label data exists in the matching time interval of the medical supplies, judging that the medical supplies are unidentified and the matching is failed;
if the effective RFID label data exists in the matching time interval of the medical supplies, correct RFID label data is selected by a label filtering mechanism and matched with the corresponding medical supplies.
Further, the RFID antenna is a parallel-fed array antenna; preferably, the RFID antenna comprises a feed network, a metal base plate and a plurality of side-by-side radiating elements, wherein each radiating element is connected with the metal base plate through the feed network, and the metal base plate is continuously connected into the device body of the RFID reading device through a feed circuit.
Further, the number of the radiating units is three.
Further, the RFID reading device is configured to start and stop reading the RFID tag according to the sensing result of the sensor.
Further, the intelligent terminal is further used for generating medical supplies in-out information according to the RFID tag data read by the RFID identification equipment;
and generating a data report of the hospital standard according to the medical supplies in-out warehouse information, and uploading the data report to a corresponding medical supplies management system.
Further, step S5 further includes identifying the read RFID tag data return signal strength and the repetition number in the matching time interval corresponding to each medical article;
the tag filtering mechanism comprises:
firstly, selecting according to the return signal strength of RFID tag data, and selecting the RFID tag data with the return signal strength exceeding a preset threshold value; and then further selecting the RFID label data with the repetition number higher than a preset threshold value as final RFID label data corresponding to the medical supplies according to the repetition number of the selected RFID label data.
Another object of the present invention is to propose a medical supply management system comprising:
the acquisition module is used for acquiring medical supplies inventory information, wherein the medical supplies inventory information comprises medical supplies inventory quantity;
the plan generation module is used for generating a medical supply purchasing plan when the medical supply stock quantity is smaller than a preset stock threshold value;
the purchasing module is used for purchasing the suppliers based on the medical supplies purchasing plan to obtain the purchased medical supplies with the preset radio frequency identification tags; the radio frequency identification tag stores identification information of the purchased medical supplies;
the warehousing module is used for scanning the radio frequency identification tag through the high-throughput RFID identification equipment to obtain identification information of the purchased medical supplies, and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies to obtain warehousing information;
the inventory information updating module is used for updating the medical supplies inventory information according to the warehouse-in information;
and the management module is used for managing the stock medical supplies based on the updated medical supply stock information.
The system generates a medical supplies purchasing plan when the medical supplies stock quantity is smaller than a preset stock threshold value; purchasing the medical supplies to the suppliers based on the medical supplies purchasing plan to obtain the purchased medical supplies preset with the radio frequency identification tags; the radio frequency identification tag stores identification information of the purchased medical supplies; acquiring identification information of the purchased medical supplies by scanning the radio frequency identification tag, and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies to acquire warehousing information; updating the medical supplies inventory information according to the warehouse-in information; and managing the stock medical supplies based on the updated medical supply stock information. According to the invention, when the stock quantity of the medical supplies is lower than the stock threshold value, a medical supply purchasing plan is automatically generated, meanwhile, the information of the medical supplies in storage is automatically recorded by utilizing the radio frequency identification technology, and then the stock information of the medical supplies is updated, so that the technical problems of high manual strength and easiness in error in inputting information are solved.
Drawings
Fig. 1 is a schematic perspective view of a high-throughput RFID identification device for medical supplies in an embodiment of the present invention.
Fig. 2 is a right side view of the high-throughput RFID identification device for medical supplies of fig. 1.
Fig. 3 is a schematic plan view of an RFID identification antenna according to an embodiment of the present invention.
Fig. 4 is a top view of the high-throughput RFID identification device for medical supplies of fig. 1.
Fig. 5 is a flowchart of a tag filtering algorithm in an embodiment of the present invention.
Fig. 6 is a block diagram illustrating a medical supply management system according to an exemplary embodiment of the present invention.
FIG. 7 is a flowchart of the operation of the medical supply management system shown in an embodiment of the present invention.
Fig. 8 is a flowchart of step S220 in the embodiment shown in fig. 7 in an exemplary embodiment.
Fig. 9 is a flowchart of step S240 in the embodiment shown in fig. 7 in an exemplary embodiment.
Fig. 10 is a flowchart of step S250 in the embodiment shown in fig. 7 in the first exemplary embodiment.
Fig. 11 is a flowchart of step S250 in the embodiment shown in fig. 7 in a second exemplary embodiment.
Fig. 12 is a flowchart of step S250 in the embodiment shown in fig. 7 in a third exemplary embodiment.
Fig. 13 is a flowchart of step S250 in the embodiment shown in fig. 7 in a fourth exemplary embodiment.
Reference numerals in the drawings of the specification include: conveyor belt 1, RFID identification channel 2, RFID antenna 21, radiating element 211, feed network 212, metal chassis 213, photosensor 3, medical supplies 4.
Detailed Description
The high-throughput RFID identification device in this embodiment is basically as shown in fig. 1, and mainly includes a conveyor belt and an RFID identification channel 2, where a housing of the RFID identification channel spans a middle section of the conveyor belt, and an RFID reading device is integrated in the housing, and the device includes a device body and a plurality of RFID antennas 21. As shown in fig. 2, in this embodiment, four RFID antennas 21 are erected in the housing and are respectively located in the up-down, left-right directions of the conveyor belt 1, so as to ensure a 360 ° omnidirectional environmental recognition system, on the other hand, as shown in fig. 3, the RFID antennas 21 used in this embodiment include a feed network 212, a metal bottom plate 213 and a radiation unit 211, the radiation unit 211 is connected with the metal bottom plate 213 through a feed network, the metal bottom plate is continuously connected with the device body through a feed circuit, in this embodiment, three parallel radiation units 211 are used to form a parallel feed array antenna, so that under the working frequency, the lobe width of each antenna in the horizontal direction (the conveying direction of the conveyor belt) for reading RFID tags is reduced to 20-30 °, and the lobe width in the vertical direction only needs to satisfy the full coverage of the area to be scanned in the channel, preferably about 70 ° in this embodiment, so as to effectively control the readable range of the antenna.
When the medical supplies 4 are conveyed to the RFID identification channel by the conveyor belt, the RFID reading device starts to identify, in this embodiment, a standard UHF (Ultra High Frequency) RFID identification mode is adopted, the working frequency is 920-925 MHz, under the condition that the working frequency is known, specific parameters of the array antenna, such as the size of the radiating units and the interval between the radiating units, can be designed and fed by a person skilled in the art, and the lobe width can be regulated and controlled, so that the specific process is relatively existing and is not repeated here. In this embodiment, the RFID reading device is further configured to sequentially turn on and off each RFID antenna to read the RFID tag within the lobe range when the medical article passes, where the on of one RFID antenna is immediately the off of the previous RFID antenna, and there is no time gap, and the RFID tag data read during that time is stored in the buffer unit on the device body according to the time when it is read. In this embodiment, the device body further includes common units of RFID reading devices, such as a general antenna control unit, a power amplifier control unit, a signal demodulation unit, a digital-to-analog conversion unit, a buffer unit, and a communication unit, and the general functions and designs thereof are not described herein.
In order to realize automatic opening of the RFID reading device, photoelectric sensors 3 are arranged on two sides of the RFID identification channel, as shown in fig. 1, the photoelectric sensors 3 in the embodiment are arranged on the baffles on two sides of the conveyor belt, the positions of the photoelectric sensors are close to the exit/entrance of the RFID identification channel, and when the photoelectric sensors 3 detect that medical supplies to be entered/exited are entered into the channel, triggering information is sent to a control unit in the body of the reading device, and then the opening and closing of the RFID reading device are triggered.
In this embodiment, the four RFID antennas are disposed on the same plane perpendicular to the conveying direction of the conveyor belt. As shown in fig. 4 (a), since the lobe coverage of each RFID antenna is narrowed, the lobe coverage of the first RFID antenna is substantially unable to cover the entire medical article 4 when the first RFID antenna is turned on for reading, and thus the number of RFID tags covered at the same time is relatively reduced; as shown in fig. 4 (b), as the medical article moves forward, the second RFID antenna is turned on immediately after the first RFID antenna is turned off, and the medical article is not covered to a part that is to be covered this time in the last reading; and the like, the four RFID antennas are sequentially opened and closed up, down, left and right, so that a plurality of RFID tags in the same medical article 4 are divided into a plurality of batches, and the RFID tags at a plurality of different positions are respectively read from different directions; since the number of RFID labels read at a time is limited within a better range, the risks of misreading and serial reading of the labels are reduced, and in addition, the risks of misreading or misreading of the labels due to shielding in a certain direction are reduced due to reading in multiple directions. The starting time of each time of a single RFID antenna is related to the transmission speed of a transmission belt, and in the initial debugging stage in actual work, the transmission speed and the starting time are required to be optimally debugged according to the requirements of specific working conditions, and the transmission speed and the starting time are not changed after being given.
The intelligent terminal is connected with the RFID reading equipment and is used for generating medical supplies in-out information according to the read RFID tag data;
and generating a data report of the hospital standard according to the medical supplies in-out warehouse information, and uploading the data report to a corresponding medical supplies management system.
In this embodiment, the intelligent terminal is further connected with the photoelectric sensor, so that the binding relationship between the time when the photoelectric sensor is triggered and the tag information can be utilized, the one-to-one correspondence between the read tag information and a single medical article (each medical article is attached with only one tag) can be accurately realized through a filtering algorithm, and the correspondence between the medical articles and the RFID tags thereof is established by a provider. Each RFID tag has a unique electronic code, the unique electronic code is attached to an object to identify a target object, the electronic code is used as a unique identification of a certain medical article, a one-to-one correspondence with the medical article is established, the RFID tag data read by the RFID reading equipment corresponds to the unique electronic code, the RFID tag input can be written in through a reagent RFID reader-writer client in the commodity preparation stage of a supplier, and the RFID tag input can also be written in through the reagent RFID reader-writer client in the pretreatment of the medical article in the hospital.
The filtering algorithm in this embodiment is basically as shown in fig. 5, and includes the following steps:
s1, according to the conveying speed V of a conveying belt, presetting a matching interval length L, and calculating preset label matching interval time t=L/V;
in practice, the matching interval length L may be the installation distance of the front and rear photoelectric sensors, or may be set to be smaller than the installation distance of the two photoelectric sensors, and the installation distances of the two photoelectric sensors may also be manually adjusted, which depends on the optimization adjustment performed by the installation and debugging personnel according to the needs of the actual working conditions.
S2, recording the moment T when the first medical article touches the photoelectric sensor 1 ；
S3, judging from T 1 Whether a second medical article triggers the photoelectric sensor within the starting time,
if yes, recording the moment T when the second medical article touches the photoelectric sensor 2 Recording the label matching time interval of the first medical article as [ T ] 1 ，T 2 ]Simultaneously updating data T 1 ＝T 2 And returning to the judgment;
if not, recording the label matching time interval of the first medical article as [ T ] 1 ，T 1 +t]；
It is noted that, as can be seen from the foregoing, if from T 1 The second medical article is arranged in the time T from the moment 2 When the photoelectric sensor is touched at the moment, the calculation starting point of the label matching section T is updated to be T 2 At the moment, if the medical supplies trigger the photoelectric sensor again in the label matching interval t, the calculation starting point of t is updated again, and the like; in this process the RFID reading device is actually read from T 1 Always from moment to momentReading continues until no new medical supplies trigger the photosensor within a complete matching interval T, in which case the operating time period of the RFID reading device may be denoted as T 1 ，T 2 ,…T n +t]In this case, the actual tag matching time interval is also equivalent to [ T ] 1 ，T 2 ,…T n +t]Corresponding to n medical supplies; in extreme cases, if the previous medical item has not been scanned completely, the latter activates the photosensor, and the RFID reader device does not cease to operate, but only a portion of the tags (at T 2 The part read after the moment) is temporarily mapped to the subsequent medical item, but the final matching of the tag data with the medical item can still be accomplished by the subsequent tag filtering mechanism.
S4, taking out the RFID tag data cached in the matching time interval corresponding to each medical article in the RFID reading equipment; s5, distinguishing the validity, the return signal strength and the repetition number of the read RFID tag data in the matching time interval corresponding to each medical article,
if no effective RFID label data exists in the matching time interval of the medical supplies, judging that the medical supplies are unidentified and the matching is failed;
if effective RFID tag data exists in the matching time interval of the medical supplies, correct RFID tag data is selected by a tag filtering mechanism and matched with the corresponding medical supplies.
The tag filtering mechanism selects the RFID tag data with the return signal strength exceeding a preset threshold value according to the return signal strength of the RFID tag data according to the selection criteria that the tag return signal strength is high and the tag reading times are most; and then further selecting the RFID label data with the repetition number higher than a preset threshold value as final RFID label data corresponding to the medical supplies according to the repetition number of the selected RFID label data.
When the medical supplies are checked in and out, the high-flux RFID identification equipment in the embodiment is used for collecting the medical supply information, wherein the medical supplies are preset with RFID identification tags, the high-flux RFID identification equipment is used for acquiring the medical supply information when the medical supplies pass through, and then the medical supply information is sent to a server for unified management.
It should be noted that whether the received RFID tag data is valid or not can be determined according to a well-known RFID technology standard, and the identification of the strength of the return signal of the RFID tag data is a general function of the RFID reading device, which is not described herein.
The present embodiment also provides a medical supply management system deployed in a server, substantially as shown in fig. 6, the system comprising:
the acquisition module is used for acquiring medical supplies inventory information, wherein the medical supplies inventory information comprises medical supplies inventory quantity;
the plan generation module is used for generating a medical supply purchasing plan when the medical supply stock quantity is smaller than a preset stock threshold value;
the purchasing module is used for purchasing the suppliers based on the medical supplies purchasing plan to obtain the purchased medical supplies with the preset RFID identification tags; the RFID identification tag stores identification information of the purchased medical supplies;
the warehousing module is used for scanning the radio frequency identification tag through the high-throughput RFID identification equipment to obtain identification information of the purchased medical supplies, and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies to obtain warehousing information;
the inventory information updating module is used for updating the inventory information of the medical supplies according to the warehouse-in information;
and the management module is used for managing the stock medical supplies based on the updated medical supply stock information.
The system generates a medical supplies purchasing plan when the medical supplies stock quantity is smaller than a preset stock threshold value; purchasing the medical supplies to the suppliers based on the medical supplies purchasing plan to obtain the purchased medical supplies preset with the radio frequency identification tags; the radio frequency identification tag stores identification information of the purchased medical supplies; acquiring identification information of the purchased medical supplies by scanning the RFID tag, and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies to acquire warehousing information; updating the medical supplies inventory information according to the warehouse-in information; and managing the stock medical supplies based on the updated medical supply stock information. According to the invention, when the stock quantity of the medical supplies is lower than the stock threshold value, a medical supply purchasing plan is automatically generated, meanwhile, the information of the medical supplies in storage is automatically recorded by utilizing the radio frequency identification technology, and then the stock information of the medical supplies is updated, so that the technical problems of high manual strength and easiness in error in inputting information are solved.
As shown in fig. 7, the working process of the medical article management system in this embodiment at least includes steps S210 to S260, and is described in detail as follows:
s210, acquiring medical supplies inventory information, wherein the medical supplies inventory information comprises medical supplies inventory quantity;
in this embodiment, the medical supplies inventory information is the storage information of various medical supplies in the current warehouse, which may be the inventory information recorded by the radio frequency identification technology, or the inventory information recorded manually; wherein the stock information comprises identification information, additional information, stock quantity and the like of the medical supplies, and the identification information comprises names, specifications, types, manufacturers, suppliers, batch numbers, expiration dates, commodity bar codes (REF codes), registration certificate numbers and the like; additional information such as packaging units, purchase prices, retail prices, issuing departments, purchasing persons, entering persons, using applicants, and the like.
S220, when the stock quantity of the medical supplies is smaller than a preset stock threshold value, generating a medical supply purchasing plan;
in step S220, the inventory threshold is a preset value, and when the current inventory level of a certain medical item (such as a test reagent) is lower than the inventory threshold, a purchase plan is triggered to be generated.
S230, acquiring identification information of the medical supplies obtained through a medical supply purchasing plan, and storing the identification information through a radio frequency identification tag;
in step S230, a correspondence between the medical supplies and the RFID tags is established by the suppliers. Each RFID tag has a unique electronic code, the unique electronic code is attached to an object to identify a target object, the electronic code is adopted as a unique identification of a certain inspection reagent, a one-to-one correspondence relationship with identification information of medical supplies is established, the RFID tag is input and placed in a supplier stock stage to be written in through a reagent RFID reader-writer client, and the RFID tag input can also be written in through the reagent RFID reader-writer client when the medical supplies are preprocessed during hospital reception.
S240, acquiring identification information of the purchased medical supplies by scanning the radio frequency identification tag, and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies to acquire warehousing information;
in step S240, when the medical supplies are put in storage, the medical supplies are made to pass through the RFID identification channel directly, and the RFID reading device in the channel scans the RFID tag of the medical supplies, so as to obtain the medical supply identification information, and the medical supply identification information is used for representing a single medical supply; and identifying and counting the single medical supplies to obtain warehouse entry information.
S250, updating the inventory information of the medical supplies according to the warehouse-in information;
in step S250, the information about the type, number, etc. of the medical supplies to be put in storage is reflected in the put-in information, so that the current medical supply inventory information can be obtained after the medical supply inventory information is updated according to the put-in information.
S260, managing the stock medical supplies based on the updated medical supply stock information;
in step S260, the management methods for the medical supplies in stock include ex-warehouse management, inventory management, and medical supply status management, which are all implemented based on the current stock information.
As shown in FIG. 8, in one embodiment, the process of generating a medical supplies procurement plan may include steps S310 through S330, described in detail below:
s310, acquiring supplier information and preset medical supply inventory;
in step S310, the medical supplies stock amount refers to the stock amounts of the plurality of medical supplies in the warehouse preset by the manager;
s320, calculating the medical supplies purchasing quantity according to the medical supplies stock quantity, wherein the medical supplies purchasing quantity is more than or equal to the medical supplies stock quantity-medical supplies stock quantity;
in step S320, when purchasing the medical supplies, it is necessary to ensure that the stock quantity of the medical supplies is greater than or equal to the stock quantity of the medical supplies, and therefore, the purchase quantity of the medical supplies is greater than or equal to the difference between the stock quantity of the medical supplies and the stock quantity of the medical supplies.
S330, constructing a medical supply purchasing plan according to the supplier information and the medical supply purchasing quantity.
In step S330, purchasing can be performed based on the supplier information and the medical supplies purchasing amount, and a purchasing plan of medical supplies of the corresponding variety is generated.
As shown in fig. 9, in an embodiment, the process of obtaining identification information of the purchased medical supplies by scanning the RFID tag and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies may include steps S410 to S440, which are described in detail below:
s410, carrying out face recognition on the warehouse-in operators through preset face recognition equipment to obtain identity information of the warehouse-in operators;
in this embodiment, after face recognition equipment (such as a face recognition camera) collects a face and recognizes the face, identity information of a warehouse-in operator is obtained, so that identity of the warehouse-in operator is identified.
S420, scanning the purchased medical supplies through the preset high-throughput RFID identification equipment when the identity information of the warehousing operator is matched with the preset identity information, so as to obtain the identification information of the purchased medical supplies;
in step S420, when the identity information of the warehousing operator accords with the preset identity information, that is, the operator has the right of warehousing operation, the medical supplies are warehoused, and because the medical supplies are pre-bound with the RFID tag, the warehousing operator scans the medical supplies through the RFID identification device to obtain the identification information of the medical supplies, so that the information storage and the medical supplies warehousing are conveniently performed, and the synchronous warehousing of the medical supplies and the medical supplies is realized.
S430, counting the identification information of the purchased medical supplies to be put in storage to obtain the put quantity of the purchased medical supplies;
in step S430, since each piece of identification information represents one medical article (including information of type, specification, name, code, etc.), the stock-in amount of the medical article of the type can be obtained after counting the identification information.
S440, constructing warehousing information according to the identity information of the warehousing operator, the identification information of the purchased medical supplies and the warehousing quantity of the purchased medical supplies;
in this embodiment, the warehousing information at least includes identity information of a warehousing operator, identification information of the purchased medical supplies, and warehousing quantity of the purchased medical supplies, so as to ensure reliable sources of the medical supplies.
As shown in fig. 10, in an embodiment, the process of managing the inventory of medical supplies based on the updated medical supply inventory information may include steps S510 to S540, which are described in detail below:
s510, carrying out face recognition on a person who goes out of the warehouse through a preset face recognition device when medical supplies go out of the warehouse, and obtaining identity information of the person who goes out of the warehouse;
in this embodiment, the medical supplies are delivered in the following cases: the medical supplies are delivered when applied for use and delivered when returned; taking a hospital as an example, medical supplies are applied for use by corresponding departments, and when medical supplies are delivered according to the application, delivery operators are firstly subjected to face recognition.
S520, when the identity information of the ex-warehouse operator is matched with the preset identity information, scanning the ex-warehouse medical supplies through preset RFID identification equipment to obtain identification information of the ex-warehouse medical supplies;
in step S520, after proving the identity of the operator, automatically synchronizing information by using radio frequency identification (while medical supplies are delivered, the information of the medical supplies is identified by using RFID identification equipment to update the current stock), and completing rapid delivery; when the medical supplies are returned, the medical supplies are similarly delivered, a warehouse manager (a delivery operator) initiates a return flow, after receiving a return bill, a distributor sends a person to a warehouse of the courtyard to receive the return bill, the warehouse manager carries out reagent delivery, and the receiver receives the return reagent and brings the return reagent back to the warehouse of the distributor, and the information of the medical supplies delivered by the induction of the radio frequency identification technology is utilized to update the current inventory.
S530, counting the identification information of the medical supplies to be delivered to obtain the delivery information of various medical supplies in a preset period;
in step S530, the information to be updated in inventory is mainly the information of the medical supplies for delivery and the identification information of the medical supplies; thereby judging the type and the number of medical supplies in the current ex-warehouse operation.
Acquiring the ex-warehouse information of the target medical supplies in a preset period from the ex-warehouse information of the plurality of medical supplies, and correlating the ex-warehouse information of the target medical supplies in the preset period with the use items of the target medical supplies to obtain the use cost of the medical supplies of the use items in the preset period;
in step S530, the target medical supplies may be one or more;
s540, updating the updated medical supplies inventory information according to the identity information of the ex-warehouse operator, the identification information of the ex-warehouse medical supplies and the ex-warehouse information of the target medical supplies, and completing ex-warehouse management.
In this embodiment, the medical supplies inventory information includes at least the operator who goes in and goes out of the medical supplies, the medical supplies identification information (name, specification, type, manufacturer, supplier, lot number, expiration date, commodity bar code (REF code), registration certificate number, etc.), and the inventory amount of the medical supplies, so that when the medical supplies inventory information is updated, the corresponding information needs to be updated.
As shown in fig. 11, in an embodiment, the process of managing the inventory medical supplies based on the updated medical supply inventory information may further include steps S610 to S650, which are described in detail below:
s610, acquiring identification information of the inventory medical supplies by periodically scanning radio frequency tags of the inventory medical supplies;
in this embodiment, the inventory period is set to be one month, and the relevant inventory personnel can carry the handheld radio frequency scanning device to patrol the warehouse, such as the non-contact radio frequency scanning device, and can automatically complete statistics of identification information and quantity of the inventory medical supplies by receiving the RFID tag (chip) signal bound by the medical supplies only by the handheld radio frequency scanning device to patrol the warehouse.
S620, counting the identification information of the inventory medical supplies in the current period to obtain the inventory quantity of the inventory medical supplies in the current period;
in step S620, the statistics of the identification information of the stock medical supplies in the current period are automatically completed by the handheld radio frequency scanning device, and the above functions are the prior art.
S630, comparing the stock quantity of the stock medical supplies in the current period with the stock quantity of the stock medical supplies in the previous period to obtain the use quantity of the stock medical supplies in one period;
s640, comparing the usage amount with the ex-warehouse information of the medical supplies to obtain an inventory difference table;
in step S640, in some cases, the recorded ex-warehouse information may be different from the usage amount during inspection (e.g. statistics fail, someone does not take out medical supplies through the ex-warehouse process, etc.);
s650, supplementing and aligning the inventory medical supplies according to the inventory difference table.
In step S650, since there may be a difference between the recorded information of the warehouse out and the usage during inspection in some cases, for the reliability of the inventory, the inventory medical supplies need to be replenished according to the inventory difference table to avoid the situation of no medicine availability.
As shown in fig. 12, in an embodiment, the process of managing the inventory medical supplies based on the updated medical supply inventory information may further include steps S710 to S720, which are described in detail below:
s710, acquiring identification information of the inventory medical supplies by scanning radio frequency tags of the inventory medical supplies, wherein the identification information comprises expiration time of the medical supplies;
in this embodiment, the identification information includes a expiration period (or an expiration time of the medical supplies), so that the timeliness of the medical supplies can also be determined according to the identification information of the medical supplies.
S720, comparing the expiration time of the medical supplies with the current time, and generating an expiration alarm of the medical supplies when the expiration time of the medical supplies is earlier than the current time; and when the expiration time of the medical supplies is later than the current time and the difference between the expiration time of the medical supplies and the current time is smaller than the near-term of the medical supplies, generating a near-term alarm of the medical supplies.
In step S720, the medical supply near-term refers to a period of time (e.g. 6 months) that is a fixed period of time from the expiration of the medical supply, and the present time of the medical supply is used to determine whether the medical supply is in the near-term. In order to ensure that all medical supplies can be delivered before expiration, non-near-expiration medical supplies can be set to be forbidden to be delivered.
As shown in fig. 13, in an embodiment of the present invention, the medical supplies inventory information includes a medical supplies inventory temperature range, and the process of managing the inventory of medical supplies based on the updated medical supplies inventory information may further include steps S810 to S830, which are described in detail below:
s810, acquiring identification information of the stock medical supplies by scanning radio frequency tags of the stock medical supplies, and acquiring temperature values of a plurality of partitions of a warehouse by a preset temperature sensor, wherein the partitions of the warehouse are used for storing a plurality of medical supplies, and the storage temperatures of the plurality of medical supplies are different;
in step S810, when the warehouse stores the medical supplies, it is necessary to set an ambient temperature according to the required storage temperature of the medical supplies, and since the required storage temperatures of the plurality of medical supplies are different, it is necessary to set a plurality of partitions;
acquiring a target partition from the plurality of partitions, and acquiring target medical supplies in the target partition through identification information;
s820, comparing the preset storage temperature of the target medical supplies with the temperature value of the target partition, and comparing the temperature value of the target partition with the preset partition temperature value;
in step S820, the preset storage temperature is the temperature required for storing the target medical supplies, and the preset partition temperature value is the ideal temperature value of the target partition;
s830, when the temperature value of the target partition is inconsistent with the preset partition temperature value, generating a temperature alarm signal;
in step S830, when the temperature value of the target partition is inconsistent with the preset partition temperature value, determining that the temperature of the target partition is abnormal, thereby generating a temperature alarm signal;
when the temperature value of the target partition is consistent with the preset partition temperature value and the preset storage temperature of the target medical supplies is inconsistent with the temperature value of the target partition, judging that the placement positions of the target medical supplies are misplaced, and generating a placement alarm signal;
when the temperature value of the target partition is consistent with the preset partition temperature value, judging that the actual temperature of the target partition is not problematic, but the radio frequency equipment tag of the target medical supplies shows that the storage temperature of the target medical supplies is inconsistent with the temperature of the target partition, and judging that the placement position of the target medical supplies is wrong, so that a placement alarm signal is generated;
and sending the temperature alarm signal and the placement alarm signal to a preset object.
In step S830, when the temperature of the target partition is abnormal and the placement position of the target medical supplies is wrong, an alarm short message is sent through a preset phone number to remind the staff.
The embodiment provides a medical supplies management method, which generates a medical supplies purchasing plan when the stock quantity of medical supplies is smaller than a preset stock threshold value; purchasing the medical supplies to the suppliers based on the medical supplies purchasing plan to obtain the purchased medical supplies preset with the radio frequency identification tags; the radio frequency identification tag stores identification information of the purchased medical supplies; acquiring identification information of the purchased medical supplies by scanning the radio frequency identification tag, and warehousing the purchased medical supplies based on the identification information of the purchased medical supplies to acquire warehousing information; updating the medical supplies inventory information according to the warehouse-in information; and managing the stock medical supplies based on the updated medical supply stock information. According to the invention, when the stock quantity of the medical supplies is lower than the stock threshold value, a medical supply purchasing plan is automatically generated, meanwhile, the information of the medical supplies in storage is automatically recorded by utilizing the radio frequency identification technology, and then the stock information of the medical supplies is updated, so that the technical problems of high manual strength and easiness in error in inputting information are solved.
It should be noted that, the medical article management system provided in the foregoing embodiment and the medical article management method provided in the foregoing embodiment belong to the same concept, and the specific manner in which each module and unit perform the operation has been described in detail in the method embodiment, which is not repeated herein. In practical application, the medical article management system provided in the above embodiment may distribute the functions to be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above, which is not limited herein.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Where each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present application may be implemented by means of software, or may be implemented by means of hardware, and the described units may also be provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Claims (7)
1. A high throughput RFID identification device for medical supplies, including, RFID discernment passageway and be used for conveying medical supplies through the transport mechanism of RFID discernment passageway, its characterized in that:
an RFID reading module for reading an RFID tag on the medical article is arranged in the RFID identification channel;
the apparatus includes a plurality of RFID antennas positioned within the RFID identification channel and disposed around the transport mechanism;
the RFID antenna is configured to have a horizontal transmission lobe width of 20-30 DEG at an operating frequency thereof;
the RFID reading equipment is arranged to sequentially start and stop each RFID antenna to read RFID tags in the lobe range when medical supplies pass;
the number of the RFID antennas is four, and the RFID antennas are uniformly distributed in the four directions of the upper, lower, left and right of the conveying mechanism;
the RFID antennas are arranged on the same plane perpendicular to the conveying direction of the conveying mechanism;
the RFID identification system also comprises sensors respectively positioned at the two sides of the inlet and the outlet of the RFID identification channel, wherein the sensors are used for sensing whether an article passes or not;
the intelligent terminal is electrically connected with the RFID identification equipment;
the intelligent terminal is connected with the sensor; the intelligent terminal is internally provided with the following algorithm:
s1, according to the conveying speed V of a conveying belt, presetting a matching interval length L, and calculating preset label matching interval time t=L/V;
s2, recording the time T when the first medical article triggers the RFID identification channel inlet side sensor 1 ；
S3, judging from T 1 Whether a second medical article triggers the sensor within the starting time,
if so, recording the moment T when the second medical article triggers the RFID identification channel inlet side sensor 2 Recording the label matching time interval of the first medical article as [ T ] 1 ，T 2 ]Simultaneously updating data T 1 ＝T 2 And returning to the judgment;
if not, recording the label matching time interval of the first medical article as [ T ] 1 ，T 1 +t]；
S4, taking out the RFID tag data cached in the matching time interval corresponding to each medical article in the RFID reading equipment;
s5, distinguishing the validity of the read RFID tag data in the matching time interval corresponding to each medical article;
if no effective RFID label data exists in the matching time interval of the medical supplies, judging that the medical supplies are unidentified and the matching is failed;
if the effective RFID label data exists in the matching time interval of the medical supplies, correct RFID label data is selected by a label filtering mechanism and matched with the corresponding medical supplies.
2. The high-throughput RFID identification device of claim 1, wherein the RFID antenna is a parallel fed array antenna; preferably, the RFID antenna comprises a feed network, a metal base plate and a plurality of side-by-side radiating elements, wherein each radiating element is connected with the metal base plate through the feed network, and the metal base plate is continuously connected into the device body of the RFID reading device through a feed circuit.
3. The high-throughput RFID identification device of claim 2, wherein the number of radiating elements is three.
4. The high-throughput RFID identification device of claim 1, wherein the RFID reading device is configured to turn on and off reading of RFID tags based on the sensing result of the sensor.
5. The high-throughput RFID identification device of claim 1, wherein the intelligent terminal is further configured to generate medical supply in-out information according to RFID tag data read by the RFID identification device;
and generating a data report of the hospital standard according to the medical supplies in-out warehouse information, and uploading the data report to a corresponding medical supplies management system.
6. The high-throughput RFID identification apparatus of claim 1, further comprising identifying read RFID tag data return signal strength and repetition number in a matching time interval corresponding to each medical item in step S5;
the tag filtering mechanism comprises:
firstly, selecting according to the return signal strength of RFID tag data, and selecting the RFID tag data with the return signal strength exceeding a preset threshold value; and then further selecting the RFID label data with the repetition number higher than a preset threshold value as final RFID label data corresponding to the medical supplies according to the repetition number of the selected RFID label data.
7. A medical supply management system, comprising:
the acquisition module is used for acquiring medical supplies inventory information, wherein the medical supplies inventory information comprises medical supplies inventory quantity;
the plan generation module is used for generating a medical supply purchasing plan when the medical supply stock quantity is smaller than a preset stock threshold value;
the purchasing module is used for purchasing the suppliers based on the medical supplies purchasing plan to obtain the purchased medical supplies with the preset radio frequency identification tags; the radio frequency identification tag stores identification information of the purchased medical supplies;
a warehousing module, configured to obtain identification information of the purchased medical supplies by scanning the radio frequency identification tag through the high-throughput RFID identification device according to any one of claims 1 to 6, and to warehouse the purchased medical supplies based on the identification information of the purchased medical supplies, so as to obtain warehousing information;
the inventory information updating module is used for updating the medical supplies inventory information according to the warehouse-in information;
and the management module is used for managing the stock medical supplies based on the updated medical supply stock information.
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