Automatic collecting and recording device and collecting and recording method for warehouse-in and warehouse-out data of blood products

Abstract

The invention relates to an automatic collecting and recording device and a data collecting and recording method for warehouse-in and warehouse-out data of blood products. The device comprises a transportation box capable of shielding signals, a walking mechanism arranged below the transportation box, an RFID chip arranged on the surface of a blood product packaging bag, an RFID reader-writer installed in the transportation box, and a weighing sensor installed between the transportation box and the walking mechanism. The method comprises the following steps of: synchronously weighing the overall gross weight data of the bagged blood product when the blood product is prepared and packaged; a weighing sensor is used for detecting the weight of the bagged blood products in the transportation box to form a real total value; ensuring that the RFID reader-writer only reads the data of the blood products in the transportation box by utilizing the transportation box to form a calculation total value; and comparing the real total value with the calculated total value, and checking the accuracy of the RFID reading result, so as to obtain accurate warehousing information.

Description

Technical Field

[0001] The present invention belongs to the technical field of blood product transportation, and in particular relates to an automatic data collection and recording device for blood product in-and-out storage and a data collection and recording method. Background Art

[0002] Blood therapy is a very important medical treatment method. When a patient is dying, fresh blood can directly save a person's life. At present, blood in my country is obtained through free blood donations from the people. Blood centers have been set up to pre-treat and preserve blood. Blood collection, storage, transportation, and use require strict control to ensure blood safety and prevent situations caused by human management factors.

[0003] In the blood management process, a variety of data must be recorded, including the identity information of the blood donor, the type and quality of the blood itself, the time and place of blood collection, and the information records of blood in and out of the warehouse, etc. The recording of a large amount of information and the external environmental conditions during the blood transfer process affect the final application of the blood. Once there is a slight deviation, it will affect the life, health and safety of the patient.

[0004] RFID technology automatically identifies the target object and obtains relevant data through radio frequency signals. The whole process does not require human intervention. RFID technology is used to supervise blood quality, reduce labor intensity, and achieve rapid information entry. RFID technology is to write data into magnetic tags, which are attached to items. The information of items is collected by automatically identifying and tracking tags. The tags contain electronically stored information and can be identified within a few meters. Unlike barcodes, radio frequency tags do not need to be within the line of sight of the identifier and can also be embedded in the tracked object. The high-frequency RFID signal strength used in existing blood station management is high, with a read and write range of 10 meters. The reading range is greatly improved, but there are also some disadvantages in its application: 1) The ultra-high frequency RFID has a large reading range, and it is easy to read blood bag information at other locations outside the target transport box, resulting in multiple readings and misreadings; 2) Because liquid has an attenuation effect on radio frequency information, when ultra-high frequency RFID is used for batch blood bag information collection, labels at a distance or deep cannot be collected, and missed reading occurs, which causes great difficulties in blood management, inaccurate storage data, and poses a hidden danger to medical safety. Summary of the invention

[0005] The technical problem to be solved by the present invention is that the existing data blood station data system based on RFID technology has the technical problem of inaccurate registration data due to the uncontrollable reading range of ultra-high frequency RFID.

[0006] The present invention solves the above-mentioned problem by adopting the following technical solution: A blood product in-and-out storage data automatic collection and recording device, comprising a transport box for accommodating bagged blood products in batches, a walking mechanism is arranged under the transport box, and also comprises an RFID automatic data component and a main system, the RFID automatic data component comprises an RFID reader and an RFID chip, a serial code is arranged in the RFID chip, and the RFID chip is attached to the surface of the blood product packaging bag; the RFID reader is arranged inside the transport box, and is used to read the serial code of the RFID chip; The main system includes a data processing unit and a control unit. The data processing unit is used to store the serial code and the corresponding blood product information. The blood product information includes the gross weight data of the bagged blood product. The transport box is composed of six box panels that can shield signals and are closely connected in sequence. A box door is arranged on the side of the transport box. A weighing sensor is installed between the transport box and the traveling mechanism; the RFID reader and the weighing sensor are both communicatively connected with the data processing unit.

[0007] As a preferred embodiment, a further technical solution of the above structure is: An electric push cylinder is fixedly installed on the top of the transport box, a sliding block is fixed on the telescopic end of the electric push cylinder, and the RFID reader is fixed on the sliding block; in this example, multi-point and multiple readings can be achieved by adjusting the position of the RFID reader multiple times, reducing the situation where the target is far away and blocked by liquid and cannot be read, and improving the accuracy of radio frequency reading.

[0008] The box door is a double-opening door, divided into a left door panel and a right door panel. The outer edges of the left door panel and the right door panel are both equipped with metal connecting strips, which can ensure the box's comprehensive control ability of the signal.

[0009] The RFID reader is an ultra-high frequency radio frequency reader with a reading range of 10 meters; the signal is strong, which can realize batch one-time data collection and reduce missed readings.

[0010] Optionally, the walking mechanism includes a ground wheel mechanism, an obstacle sensor and a warning component, the ground wheel mechanism includes a magnetic navigation sensor and a wheeled mobile component, wherein the magnetic navigation sensor is configured to identify a planned trajectory on the ground; the wheeled mobile component moves along the planned trajectory; the obstacle sensor is installed on the side of the walking mechanism, and is used to detect obstacles on the ground so that the walking mechanism can avoid the obstacles; the warning component is configured to play warning music so that the staff can avoid the route of the AGV wheeled mobile component.

[0011] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: The present invention is provided with a transfer box to avoid misreading caused by a large reading distance range and reduce manual labor intensity.

[0012] The present invention also provides a method for data collection, verification and entry based on the above-mentioned blood product in-and-out data automatic collection and recording device, and the specific technical solution is: A method for automatically collecting and recording blood product storage and outbound data is performed according to the following steps: The first step is to attach a label containing an RFID chip to the blood product packaging bag during the preparation and packaging of the blood product; The second step is to use an electronic scale to measure the overall gross weight data of the bagged blood products and scan the labels of the blood products, input the gross weight data into the main system, and form a blood product information table indexed by the RFID chip serial code in the main system; Step 3: Place the bagged blood products into the transport box in sequence and close the transport box; The fourth step is to detect the weight of all the bagged blood products in the transport box through the weighing sensor and calculate it as the real total value; the RFID chip in the transport box is read by the RFID reader, and the main system extracts the corresponding gross weight data according to the serial code read and calculates the sum to form the calculated total value; The fifth step is to compare the actual total value with the calculated total value. If the two values ​​match, the test data is true, and the blood product information corresponding to the serial code is further extracted to form a warehousing order and approve the warehousing; if the actual total value does not match the calculated total value, the test data is false and an alarm is issued.

[0013] Compared with the prior art, the present invention using the above method has the following beneficial effects: The present invention can greatly improve the accuracy of RFID data scanning when bagged blood products are transferred multiple times during the management process; the method uses the current real value obtained by the weight sensor to review the technical inspection value of RFID, and performs automatic comparison, saving the work of manual review; the method lays the foundation for using weight value as data verification at the blood collection end, and has clear and reliable comparison values ​​when verifying RFID detection data, thereby ensuring the accuracy of the data. The present invention avoids RFID missed reading, multiple reading, duplicate and other data from entering the database, reduces manual input, ensures the accuracy of blood data, and provides reliable medical data.

[0014] Before comparing the real total value with the calculated total value, the data is first fuzzified, specifically by adding an error coefficient of ±5 to the real total value N, forming a real total value range of N±5 grams; the calculated total value is consistent if it falls within the real total value range. This method is used to solve the equipment differences between electronic scales and weighing sensors, reduce data accuracy, and reduce misjudgment.

[0015] When the calculated total value does not match the actual total value, the RFID reader changes position to re-check the bagged blood products in the transport box, and an alarm is issued if the number of re-checks exceeds two. This method is used to improve the detection accuracy of the RFID reader.

[0016] The label also includes a visible serial code sticker; after the calculated total value is judged to be inconsistent with the real total value range, the left and right endpoints of the real total value range are respectively calculated with the calculated total value to obtain the deviation value range; the gross weight data falling into the deviation value range is found in the main system and the corresponding serial code is extracted, and the blood products with the corresponding serial code are found in the transport box through the visible serial code sticker. This method can quickly select the bagged blood products that are determined to be unreadable, thereby improving work efficiency.

[0017] Optionally, when the detection data is false, the alarm prompt is the vibration of the buzzer, the sound and / or the pop-up window on the display. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall appearance diagram of the present invention; Figure 2 It is a schematic diagram of a transport box provided inside a housing of the present invention; Figure 3 It is a perspective view of the internal structure of the present invention; Figure 4 It is a schematic diagram of the bottom assembly structure of the transport box of the present invention; Figure 5 It is a schematic diagram of a mobile mounted RFID reader / writer of the present invention; Figure 6 It is a schematic diagram of the structure of the wheel assembly of the present invention; Figure 7 It is a program-controlled structure block diagram of the present invention; Figure 8 It is a data processing block diagram of the present invention.

[0019] Explanation of the accompanying drawings: 1. Main system; 2. Shell; 3. Transport box; 4. Obstacle sensor; 5. Walking mechanism; 6. RFID reader; 7. Electric push cylinder; 8. Weighing sensor; 9. Sliding block; 10. Base; 11. Driving motor; 12. Driving wheel; 13. Auxiliary wheel. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0021] The present invention provides a method for collecting and recording blood product in-and-out data based on RFID technology. The specific technical solution is: Combination Figure 7As shown, the method for automatically collecting and recording blood product in-and-out data in this scheme is operated according to the following steps: The first step is to affix a label containing an RFID chip to the blood product packaging bag during the preparation and packaging of the blood product.

[0022] The second step is to use an electronic scale to measure the overall gross weight data of the bagged blood products, input the gross weight data into the main system 1, and form a blood product information table in the main system 1 with the RFID chip serial code as the index.

[0023] The third step is to put the bagged blood products into the transport box 3 in sequence, and then close the transport box 3.

[0024] The fourth step is to detect the weight of all the bagged blood products in the transport box 3 through the weighing sensor 8 and calculate it as the real total value; read the RFID chip in the transport box 3 through the RFID reader 6, and the main system 1 extracts the corresponding gross weight data according to the serial code read and calculates the sum to form a calculated total value.

[0025] The fifth step is to compare the actual total value with the calculated total value. If the two values ​​match, the RFID detection data is true, and the blood product information corresponding to the serial code is further extracted to form a warehousing order and approve the warehousing; if the actual total value does not match the calculated total value, the RFID detection data is false and a prompt alarm is issued.

[0026] In blood station management, a certain error is allowed in the filling volume of blood products. For example, the actual weight (total weight) of a 200CC blood bag is in the range of 236g to 276g; the actual weight of a 400CC blood bag is in the range of 450g to 530g. In order to achieve fine management, the electronic scale and weighing sensor 8 used in the present invention have an accuracy of 0.01g.

[0027] Because the electronic scale and the weighing sensor 8 on the trolley are two devices used in the preparation and packaging of blood products, and both are precision scales, there will inevitably be certain deviations. In order to eliminate the deviations of different devices, before comparing the true total value with the calculated total value, the data is first fuzzified. Specifically, the error coefficient ±5 is added to the true total value N to form a true total value range of N±5 grams. The calculated total value is consistent if it falls within the true total value range.

[0028] The present invention utilizes an electric push cylinder to design the RFID reader 6 for mobile reading. When the calculated total value does not match the actual total value, the RFID reader 6 changes position to re-inspect the bagged blood products in the transport box 3. After the re-inspection, the result is fitted with the first detection result, thereby supplementing the data of the bagged blood products that have not been detected. However, the re-inspection is not unlimited. Usually, if the number of re-inspections exceeds two times, it can be basically determined that there is an unreadable RFID chip, and an alarm is issued. This method can solve RFID errors caused by signal attenuation caused by liquid.

[0029] The bagged blood products placed in the transport box 3 are read in batches through RFID. The deviation between the calculated total value and the actual total value is generally only 1-2 bags in weight. If multiple bags are not detected, it should be considered that there is equipment failure or major error in the label.

[0030] If the RFID detection error is caused by a faulty RFID chip, it cannot be solved by re-inspection, and the bagged blood products with damaged RFID chips can only be manually picked out. The existing practice is usually to scan the labels of each bag separately, thereby picking out the unrecognizable RFID chips, which is extremely inefficient. The present invention, based on the foundation laid by the above method, can not only verify the detection data of the RFID reader 6, but also help quickly locate the undetected bagged blood products when an alarm occurs.

[0031] See also Figure 8 Based on the above data processing method, the bagged blood products that are not read by the RFID reader 6 can be quickly located. The specific processing method of the system is: first, the label affixed in the first step also includes a label with a visible serial code; then, when the real total value does not match the calculated total value range, the left end point and the right end point of the real total value range are respectively calculated with the calculated total value to obtain the deviation value range; then, the gross weight data falling into the deviation value range is found in the main system 1 and the corresponding serial code is extracted; finally, the blood product with the corresponding serial code is found in the transport box 3 through the visible serial code label.

[0032] The above method can greatly reduce the search for blood products that cannot be identified by RFID and help staff quickly deal with abnormal reading situations, that is, find and take out the corresponding bagged blood products from the transport box 3 based on the list of undetected serial codes inferred by the system.

[0033] Optionally, when the detection data is false, the prompt is in the form of buzzer vibration, sound and / or display pop-up window.

[0034] The transport box 3 of the present invention is provided with a built-in RFID reader 6, and the box chamber for accommodating blood products has an internal and external RFID signal shielding function, which can prevent the ultra-high frequency RFID from reading other blood products beyond the range due to the large reading distance range, causing erroneous reading. The weighing sensor 8 can accurately and in real time monitor the weight of the products loaded in the transport box 3 to determine the number of blood products and verify the accuracy of the data from two channels; the side of the transport box 3 of the present invention is provided with an electric door that opens on both sides for loading and unloading, making the operation more convenient and quick.

[0035] For details, see Figures 1 to 3As shown, the present invention also provides a blood product in-and-out data automatic recording device dedicated to the above method, which is designed as a vehicle body, and the housing 2 is used to assemble and fix the main system 1, which includes components such as a host, a display, and a control panel. The housing 2 has a transport box 3 for accommodating bagged blood products in batches, and a walking mechanism 5 is provided under the transport box 3. For the beauty of the vehicle body, the walking mechanism 5 is designed to be embedded in the bottom of the housing 2.

[0036] The blood product storage and outbound data automatic collection and recording device also includes an RFID automatic data component and a main system 1. The RFID automatic data component includes an RFID reader / writer 6 and an RFID chip. The RFID chip is attached to the surface of the blood product packaging bag and has a serial code embedded therein. The RFID reader / writer 6 is arranged inside the transport box 3 and is used to read the serial code of the RFID chip. The main system 1 includes a data processing unit and a control unit. The data processing unit is used to store the serial code and its corresponding blood product information. The blood product information includes the gross weight data of the bagged blood product. The data processing unit is communicatively connected with the RFID reader 6 and the sensor.

[0037] The transport box 3 is composed of six box panels that can shield signals and are tightly connected in sequence, and a box door is arranged on the side of the transport box 3; A weighing sensor 8 is installed between the transport box 3 and the traveling mechanism 5, and the RFID reader / writer 6 and the weighing sensor 8 are both communicatively connected to the data processing unit.

[0038] The radio frequency signal of RFID has the characteristic of attenuating when passing through liquid. The greater the distance between the RFID reader 6 and the RFID chip, the thicker the liquid thickness that needs to be penetrated. Most of the cases where reading is unavailable are due to being blocked by liquid. Therefore, changing the detection angle of the RFID reader 6 for the stack of blood product packaging bags and reducing the thickness of the liquid interval between the RFID reader 6 and the detection target are both effective means to solve the problem of missed reading. Therefore, the present invention designs a movable RFID reader 6 so that it can perform multiple detections at multiple points in the box to achieve the purpose of full detection. For details, see Figure 5 As an option, an electric push cylinder 7 is arranged along the length direction on the top of the transport box 3, a sliding block 9 is installed on the electric push cylinder 7, and the RFID reader 6 is fixed on the sliding block 9; when the RFID reader 6 may miss reading, the detection position is changed by the electric push cylinder 7 and re-reading is performed to avoid the situation where the target is blocked and cannot be read. When the RFID reader 6 detects the bagged blood products in the transport box 3, it is positioned along the electric push cylinder 7 for more than two times for repeated detection, thereby effectively improving the accuracy of radio frequency reading.

[0039] The transport box 3 of the present invention can be selected as a metal box for shielding radio frequency signals. The "shielding" in this solution is to restrict the reading range of the RFID reader 6 to within the range of the transport box 3. Therefore, the box body of the present invention is designed to be a structure that can completely block the signals inside and outside the box as much as possible. Although the transport box 3 is designed with a box door, the box door should ensure the cutoff of the signals inside and outside the box after closing. As an option, the box door is a double-door door, divided into a left door panel and a right door panel, and the outer edges of the left door panel and the right door panel are provided with metal connecting strips; the connecting strips are used to make up for the structural seam between the box door and the box board, to ensure the comprehensive restraint ability of the box body on the signal, so that the RFID reader 6 collects all the bagged blood product data in the transport box 3.

[0040] The transport box 3 is placed on the weighing sensor 8 , and the weighing sensor 8 also collects data of all bagged blood products in the transport box 3 .

[0041] Optionally, the RFID reader / writer 6 is an ultra-high frequency radio frequency reader / writer with a reading range of about 10 meters; the signal is strong to reduce missed readings.

[0042] Optional, see Figure 1 , Figure, the walking mechanism 5 of the present invention includes a ground wheel mechanism, an obstacle sensor 4 and a warning component, the ground wheel mechanism includes a magnetic navigation sensor and a wheeled mobile component, wherein the magnetic navigation sensor is configured to identify a planned trajectory on the ground; the wheeled mobile component moves along the planned trajectory; the obstacle sensor 4 is installed on the side of the walking mechanism 5, and is used to detect obstacles on the ground so that the walking mechanism 5 can avoid the obstacles; the warning component is configured to play warning music so that the staff can avoid the route of the AGV wheeled mobile component.

[0043] For details, see Figure 6 The wheeled mobile assembly includes a base 10, a driving wheel 12, a driving motor 11 and an auxiliary wheel 13. A driving box is provided in the middle of the lower side of the base 10. The driving motor 11 is installed in the driving box. Two driving wheels 12 are symmetrically arranged on both sides of the driving box. The two driving wheels 12 are respectively fixed to the output shaft of one driving motor 11, and multiple auxiliary wheels 13 are evenly arranged along the circumference of the base 10.

[0044] The walking mechanism is a mobile system based on the AGV trolley. It obtains information about the surrounding environment through obstacle sensors and identifies the path identifiers on the ground through magnetic navigation sensors. It usually buries underground cables or magnetic strips along the predetermined running route of the AGV trolley, plans the driving route after calculation by the controller, and controls the movement of the AGV trolley through electromagnetic induction signals to guide the AGV trolley to the designated location. The walking mechanism of this technical solution can replace manual movement of items between departments, automatically calculate data, and the RFID automatic data component communicates with the data processing unit to count the transferred blood product data, so as to complete data entry quickly and conveniently; the walking mechanism is connected to the control unit and is used to travel in department rooms, corridors, hallways and elevators, and report the starting and ending routes.

[0045] The present invention can adapt to blood products of different types and specifications, has mechanical flexibility and operability, and can meet the needs of blood stations. The present invention can connect departments to achieve automatic transfer of items, reduce labor input, reduce production costs and labor intensity, and also reduce safety risks during transportation.

[0046] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A device for automatically collecting and recording blood product in-and-out warehouse data, comprising a transport box (3) for accommodating bagged blood products in batches, a walking mechanism (5) being arranged under the transport box (3), and also comprising an RFID automatic data component and a main system (1), characterized in that: The RFID automatic data component comprises an RFID reader / writer (6) and an RFID chip, wherein the RFID chip has a serial code therein and is attached to the surface of the blood product packaging bag; the RFID reader / writer (6) is arranged inside the transport box (3) and is used to read the serial code of the RFID chip; The main system (1) comprises a data processing unit and a control unit, the data processing unit being used to store the serial code and the corresponding blood product information, the blood product information including the gross weight data of the bagged blood product; the transport box (3) being formed by six box panels capable of shielding signals being closely connected in sequence, and a box door being arranged on the side of the transport box (3); A weighing sensor (8) is installed between the transport box (3) and the running mechanism (5); the RFID reader / writer (6) and the weighing sensor (8) are both communicatively connected to the data processing unit.

2. The blood product storage and outgoing data automatic collection and recording device according to claim 1 is characterized by: An electric push cylinder (7) is fixedly mounted on the top of the transport box (3), a sliding block (9) is fixed on the telescopic end of the electric push cylinder (7), and the RFID reader (6) is fixed on the sliding block (9).

3. The blood product storage and outgoing data automatic recording device according to claim 1 is characterized by: The box door is a double-opening door, divided into a left door panel and a right door panel, and the outer edges of the left door panel and the right door panel are both provided with metal connecting strips.

4. The blood product storage and outgoing data automatic collection and recording device according to claim 1 is characterized by: The RFID reader (6) is an ultra-high frequency radio frequency reader with a reading range of 10 meters.

5. The blood product storage and outgoing data automatic collection and recording device according to claim 1 is characterized by: The walking mechanism (5) includes a ground wheel mechanism, an obstacle sensor (4) and a warning component. A ground wheel mechanism, comprising a magnetic navigation sensor and a wheeled mobile assembly, wherein the magnetic navigation sensor is configured to identify a planned trajectory on the ground; and the wheeled mobile assembly moves along the planned trajectory; An obstacle sensor (4) is mounted on the side of the walking mechanism (5) and is used to detect obstacles on the ground so that the walking mechanism (5) can avoid the obstacles; The warning component is configured to play warning music to make the staff avoid the route of the AGV wheeled mobile component.

6. The automatic recording method of the blood product storage and outbound data automatic recording device according to any one of claims 1 to 5, characterized in that: The first step is to attach a label containing an RFID chip to the blood product packaging bag during the preparation and packaging of the blood product; The second step is to use an electronic scale to measure the overall gross weight data of the bagged blood product and scan the label of the blood product, input the gross weight data into the main system (1), and form a blood product information table indexed by the RFID chip serial code in the main system (1); Step 3: Place the bagged blood products into the transport box (3) in sequence and close the transport box (3); In the fourth step, the weight of all the bagged blood products in the transport box (3) is detected by a weighing sensor (8) and calculated as a true total value; the RFID chip in the transport box (3) is read by an RFID reader / writer (6), and the main system (1) extracts the corresponding gross weight data according to the serial code obtained by reading and calculates the sum to form a calculated total value; The fifth step is to compare the actual total value with the calculated total value. If the two values ​​match, the test data is true, and the blood product information corresponding to the serial code is further extracted to form a warehousing order and approve the warehousing; if the actual total value does not match the calculated total value, the test data is false and an alarm is issued.

7. The automatic recording method of the blood product storage and outbound data automatic recording device according to claim 6 is characterized by: Before comparing the true total value with the calculated total value, the data is first fuzzified. Specifically, an error coefficient of ±5 is added to the true total value N, forming a true total value range of N±5 grams; the calculated total value is consistent if it falls within the true total value range.

8. The automatic recording method of the blood product storage and outbound data automatic recording device according to claim 6 is characterized by: When the calculated total value does not match the actual total value, the RFID reader (6) changes position to re-inspect the bagged blood product in the transport box (3), and an alarm is triggered if the number of re-inspections exceeds two times.

9. The automatic recording method of the blood product storage and outbound data automatic recording device according to claim 7 is characterized by: The label also includes a visible serial number sticker; after the calculated total value is judged to be inconsistent with the real total value range, the left end point and the right end point of the real total value range are respectively calculated with the calculated total value to obtain a deviation value range; the gross weight data falling into the deviation value range is found in the main system (1) and the corresponding serial number is extracted; and the blood product with the corresponding serial number is found in the transport box (3) through the visible serial number sticker.

10. The automatic recording method of the blood product storage and outbound data automatic recording device according to claim 6, characterized in that: The alarm prompt is the vibration of the buzzer, the sound of the buzzer and / or the pop-up window on the display.

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