Blood separator radio frequency processing device based on ultrahigh frequency RFID technology

Abstract

The utility model provides a blood separator radio frequency processing device based on the ultrahigh frequency RFID technology, which comprises a radio frequency master control processing unit, a multi-port radio frequency read-write module, an ultrahigh frequency ceramic antenna and a radio frequency feeder line, and is characterized in that the radio frequency master control processing unit is in bidirectional connection with the multi-port radio frequency read-write module; the output end of the radio frequency master control processing unit is connected with the blood separator; the multi-port radio frequency read-write module comprises a plurality of read-write ports and a plurality of types of standard interfaces, and the multi-port radio frequency read-write module reads and writes information of the plurality of RFID tags through the plurality of read-write ports; the multi-port radio frequency read-write module is connected with multiple types of ultrahigh frequency ceramic antennas through multiple types of standard interfaces; the radio frequency feeder line is respectively connected with the ultrahigh frequency ceramic antenna and the radio frequency master control processing unit, so that tag data are transmitted between the ultrahigh frequency ceramic antenna and the multi-port radio frequency read-write module; wherein the blood separator is provided with a plurality of bag hanging point positions, and the ultrahigh frequency ceramic antennas are installed on the bag hanging point positions.

Description

Technical Field

[0001] The utility model relates to the technical field of RFID collection, in particular to a radio frequency processing device for a blood separator based on ultra-high frequency RFID technology. Background Art

[0002] In the field of blood management, the core equipment for blood preparation is the blood separator. Traditional blood separators support two people operating at the same time, so it is common for two people to share a barcode scanner for cross-entry of data. The operating space of the separator is small, and blood collection bags are generally prepared in the form of 4-packs. Therefore, a blood separator requires eight bag hanging points, which results in the two operators repeatedly cross-scanning their own identity codes, bag donation codes, and the previous centrifuge code during the operation. This cross-scanning operation not only increases the operating procedures, but also reduces the efficiency of blood preparation. At the same time, scanning and entry errors will frequently occur, which brings a series of problems to blood preparation.

[0003] In order to realize intelligent and seamless information collection, reduce unnecessary blood preparation processes, and realize the Internet of Things in the entire process of blood donation, transportation, handover, preparation, storage, and warehousing to the greatest extent, it is inevitable to upgrade the technology of blood separators. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, the purpose of the utility model is to provide a radio frequency processing device for a blood separator based on ultra-high frequency RFID technology.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a radio frequency processing device for a blood separator based on ultra-high frequency RFID technology, comprising: a housing and a radio frequency main control processing unit located in the housing, a multi-port radio frequency reading and writing module, an ultra-high frequency ceramic antenna and a radio frequency feeder, wherein:

[0007] The RF main control processing unit is bidirectionally connected to the multi-port RF read-write module, and the output end of the RF main control processing unit is connected to the blood separator; the multi-port RF read-write module includes multiple read-write ports and multiple types of standard interfaces, and the multi-port RF read-write module reads and writes information of multiple RFID tags through the multiple read-write ports; the multi-port RF read-write module is connected to multiple types of ultra-high frequency ceramic antennas through the multiple types of standard interfaces; the RF feeder is respectively connected to the ultra-high frequency ceramic antenna and the RF main control processing unit, so that the tag data is transmitted between the ultra-high frequency ceramic antenna and the multi-port RF read-write module;

[0008] The blood separator is provided with a plurality of bag hanging points, and the ultra-high frequency ceramic antenna is installed near the bag hanging points.

[0009] Furthermore, the radio frequency main control processing unit is provided with a USB interface and a TTL serial port, and the radio frequency processing device is connected to the main control unit of the cryoprecipitate preparation instrument through the USB interface or the TTL serial port.

[0010] Furthermore, the reading distance between the bag hanging points is controlled at 10 cm.

[0011] Furthermore, it also includes: an audible and visual alarm, which is connected to the radio frequency main control processing unit.

[0012] Furthermore, the ultra-high frequency ceramic antenna is treated to resist liquid.

[0013] Furthermore, the number of the bag hanging points is 8.

[0014] Furthermore, it also includes: a display screen installed on the front panel of the shell.

[0015] Furthermore, it also includes: a plurality of catheters are stuck and connected to the blood separator.

[0016] Furthermore, it also includes: a pressing plate, which is buckled on the shell.

[0017] Furthermore, it also includes: a tray installed on the top of the shell.

[0018] The radio frequency processing device for blood separator based on UHF RFID technology according to the embodiment of the utility model has a compact structure, powerful functions, and a rich control interface. Users can realize various controls on the processing unit through USB or TTL serial port. The structure adopts communication interfaces such as micro interface mini USB interface, which effectively compresses the volume of the radio frequency processing unit, so that it can be conveniently installed inside other products.

[0019] At the data collection end, the utility model designs a small liquid-resistant RFID antenna according to the structural characteristics of the separator and the fact that blood products are in liquid form. The antenna has the characteristics of small size and stable reading distance. For common blood collection labels, the reading distance can be stably controlled at about 10 cm, which greatly eliminates the risk of cross-reading between a large number of blood collection labels on site and realizes stable reading and writing of various operation labels.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a structural diagram of a radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to an embodiment of the utility model;

[0023] Figure 2 The figure is a schematic diagram of the points for installing a liquid-resistant RFID antenna and the appearance of the device according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] 1-catheter stuck; 2-display screen; 3-pressure plate; 4-tray. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 As shown, the radio frequency processing device of a blood separator based on ultra-high frequency RFID technology in an embodiment of the utility model includes: a radio frequency main control processing unit, a multi-port radio frequency reading and writing module, an ultra-high frequency ceramic antenna and a radio frequency feeder.

[0029] Specifically, the radio frequency main control processing unit is bidirectionally connected to the multi-port radio frequency reading and writing module, and the output end of the radio frequency main control processing unit is connected to the blood separator.

[0030] In the embodiment of the utility model, the radio frequency main control processing unit is provided with a USB interface and a TTL serial port, and the radio frequency processing device is connected to the main control unit of the cold precipitation preparation instrument through the USB interface or the TTL serial port.

[0031] Specifically, the RF main control processing unit is compact, powerful, and has a rich control interface. Users can control the processing unit through USB or TTL serial port. The structure uses micro-interface mini USB interface and other communication interfaces, which effectively compresses the size of the RF processing unit and enables it to be easily installed inside other products.

[0032] The RF main control processing unit integrates a variety of RFID data storage format parsing algorithms, which can flexibly parse the blood donation code, personnel identity code, and centrifuge code of a specific blood station, and flexibly expand the parsing function of specific data formats in the subsequent use process. The RF main control processing unit has strong data processing capabilities. Through the ring buffer structure, it can realize the cyclic parsing and processing of up to 100 instructions. The inventory is real-time, flexible, and has corresponding sound and light alarms and information prompts. The RF main control processing unit has a complex secondary anti-cross-reading and filtering algorithm. The system automatically records the RSSI signal strength of each point electronic tag, the number of times the tag is counted, and other information, so as to effectively determine the ID of the bag tag, so as to reduce the amount of data for secondary filtering and achieve the purpose of accurate data collection.

[0033] The multi-port RF read / write module includes multiple read / write ports and multiple types of standard interfaces. The multi-port RF read / write module reads and writes information of multiple RFID tags through multiple read / write ports. The multi-port RF read / write module is connected to multiple types of UHF ceramic antennas through multiple types of standard interfaces. The RF feeder is respectively connected to the UHF ceramic antenna and the RF main control processing unit, so that the tag data is transmitted between the UHF ceramic antenna and the multi-port RF read / write module.

[0034] The blood separator is equipped with multiple bag hanging points, and the UHF ceramic antenna is installed near the bag hanging points. The position of the UHF antenna is mainly to adapt to the RFID tag on the blood bag.

[0035] In addition, the radio frequency processing device for a blood separator based on ultra-high frequency RFID technology of the utility model further includes: a plurality of catheter plugs 1, a display screen 2, a pressing plate 3 and a tray 4.

[0036] Specifically, a plurality of catheter plugs 1 are connected to the blood separator. A display screen 2 is mounted on the front panel of the housing. A pressing plate 3 is buckled on the housing. A tray 4 is mounted on the top of the housing.

[0037] Aiming at the situation that the separator has eight different bag hanging points and each point has different radio frequency identification requirements, the utility model designs a high-performance, small-size, eight-port radio frequency module that can be controlled by rounds. The module can perform flexible frequency hopping control and support differentiated power settings for different points, so as to ensure that the reading distance of each point is controlled at about 10cm. The module supports the selection of the format of the electronic tag, so that the system only reads the passive RFID tags that meet the blood station management specifications, eliminating the interference and influence of fake tags and wild tags on the system.

[0038] In the embodiment of the utility model, the number of bag hanging points is 8, and the reading distance between the bag hanging points is controlled at 10 cm.

[0039] It should be noted that the number of hanging points and the reading distance are not limited to the above examples, and can also be other distances, which can be set as needed and will not be repeated here.

[0040] In the embodiment of the utility model, the ultra-high frequency ceramic antenna is treated to resist liquid.

[0041] The radio frequency processing device for a blood separator based on the ultra-high frequency RFID technology in the embodiment of the utility model further includes: an audible and visual alarm, which is connected to the radio frequency main control processing unit.

[0042] The working process of the radio frequency processing device for a blood separator based on the UHF RFID technology of the present invention is described below: The circuit board (such as Figure 1 As shown in the figure, it is installed in the circuit space inside the separator and connected to the antenna and RF module through a dedicated high-performance low-attenuation feeder. Figure 2 As shown, the RFID liquid-resistant ceramic antenna is installed at the eight bag hanging points of the separator; the radio frequency processing unit is connected to the main control of the separator via a USB cable or a serial port cable. After the device is powered on, it will perform a self-check, and normal blood separation work can be carried out after the self-check is completed.

[0043] The technical problem to be solved by the utility model is to design a blood separator data acquisition product based on ultra-high frequency RFID technology, which includes data acquisition, radio frequency control, instruction buffering, data filtering and other units. At the data acquisition end, the utility model designs a small anti-liquid RFID antenna according to the structural characteristics of the separator and the fact that the blood product is in liquid form. The antenna has the characteristics of small size and stable reading distance. For the usual blood collection label, the reading distance can be stably controlled at about 10 cm, which greatly eliminates the risk of cross-reading between a large number of blood collection labels on site and realizes stable reading and writing of various operation labels. The utility model designs a dedicated RFID master control data acquisition unit, which can realize real-time caching, switching and execution of 100 instructions through the structure of a ring buffer. Combined with the differentiated setting functions of inventory rounds, session flags and time slot widths, it can complete the switching of antennas and the configuration of the residence time of each channel in real time and efficiently, and realize rapid data collection. The utility model adopts a new two-level data filtering algorithm. The first-level algorithm collects the RSSI signal strength when each electronic tag is counted, the number of times each tag is counted, and records its timestamp. The main control unit can preliminarily determine the distance between the tag and the point, whether the tag is stably hung, and other information by analyzing RSSI, timestamp, and the number of inventory counts, so as to realize adaptive filtering of data of multiple tags at the same point and accurately locate the ID of the bag tag; the second-level filtering algorithm compares the first-level filtered data based on the characteristics of the consistent blood donation code and blood type code of the four-pack blood bags in blood preparation, but different identification codes, so as to determine the accuracy of recognition. When the blood donation code is inconsistent, the main control unit will quickly switch the antenna at a specific point and perform a secondary scan operation; when the bag hanging position and the blood bag position identifier are inconsistent, the processing unit will remind the user of the wrong bag hanging position information through sound and light alarms, check the bag hanging situation, and ensure that there is no problem of wrong bag hanging.

[0044] The utility model provides an expandable data format parsing function. The encoding format of RFID tags currently used in the blood industry has not yet formed a unified standard. On the premise of realizing the parsing of all current blood RFID data formats, the utility model reserves an upgrade interface and can flexibly expand the electronic tag parsing function for new data formats.

[0045] The radio frequency processing device for blood separator based on UHF RFID technology according to the embodiment of the utility model has a compact structure, powerful functions, and a rich control interface. Users can realize various controls on the processing unit through USB or TTL serial port. The structure adopts communication interfaces such as micro interface mini USB interface, which effectively compresses the volume of the radio frequency processing unit, so that it can be conveniently installed inside other products.

[0046] At the data collection end, the utility model designs a small liquid-resistant RFID antenna according to the structural characteristics of the separator and the fact that blood products are in liquid form. The antenna has the characteristics of small size and stable reading distance. For common blood collection labels, the reading distance can be stably controlled at about 10 cm, which greatly eliminates the risk of cross-reading between a large number of blood collection labels on site and realizes stable reading and writing of various operation labels.

[0047] The utility model adopts an ultra-high frequency RFID radio frequency control unit to replace the barcode scanner in the traditional blood separator, so as to achieve multi-channel, non-sensitive, high-precision separation and preparation of blood products, identification of personnel identities, and intelligent entry of centrifuge codes. This design can greatly improve the intelligence level of the equipment, simplify the user's operating procedures, realize the automation of separation and preparation, product traceability, and improve the efficiency and accuracy of blood preparation. This design uses RFID radio frequency identification technology to replace traditional barcode scanning technology, thereby reducing the steps of bag scanning in the process and realizing the non-sensitive collection, filtering, and transmission of data at each point of the equipment.

[0048] The utility model designs a special RFID kit based on a thorough study of the internal structure, functions and interaction requirements of the blood separator, and makes original designs from three aspects: the selection of the RF antenna, the design of the RF module and the functional realization of the data processing unit. Under the premise of reducing the blood preparation process, the utility model can realize the collection and transmission of all data in no more than 1 second under the condition of two-person operation through real-time RFID and a secondary data collection and filtering algorithm, and provide an alarm function to facilitate user prompts in operation, bag hanging errors, etc.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A radio frequency processing device for a blood separator based on ultra-high frequency RFID technology, characterized in that: include: A housing and a radio frequency main control processing unit, a multi-port radio frequency read / write module, an ultra-high frequency ceramic antenna and a radio frequency feeder installed in the housing, wherein: The RF main control processing unit is bidirectionally connected to the multi-port RF read-write module, and the output end of the RF main control processing unit is connected to the blood separator; the multi-port RF read-write module includes multiple read-write ports, and the multi-port RF read-write module reads and writes information of multiple RFID tags through the multiple read-write ports; the multi-port RF read-write module is connected to multiple types of ultra-high frequency ceramic antennas; the RF feeder is respectively connected to the ultra-high frequency ceramic antenna and the RF main control processing unit, so that the tag data is transmitted between the ultra-high frequency ceramic antenna and the multi-port RF read-write module; The blood separator is provided with a plurality of bag hanging points, and the ultra-high frequency ceramic antenna is installed near the bag hanging points.

2. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: The radio frequency main control processing unit is provided with a USB interface and a TTL serial port, and the radio frequency processing device is connected to the main control unit of the cold precipitation preparation instrument through the USB interface or the TTL serial port.

3. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: The reading distance between the bag hanging points is controlled at 10 cm.

4. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: Also includes: An audible and visual alarm is connected to the radio frequency main control processing unit.

5. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: The ultra-high frequency ceramic antenna is treated to resist liquid.

6. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: The number of the bag hanging points is 8.

7. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: Also includes: The display screen is installed on the front panel of the housing.

8. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: Also includes: Multiple catheters are stuck and connected to the blood separator.

9. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: Also includes: A pressing plate is buckled on the shell.

10. The radio frequency processing device for a blood separator based on ultra-high frequency RFID technology according to claim 1, characterized in that: Also includes: The tray is installed on the top of the shell.

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