Sample preservation device and method for improving RFID identification performance

Abstract

A sample preservation device and a method for improving RFID identification performance, the sample preservation device comprises a box body, a cover body, an RFID assembly and a first reflection member, and the effective area of the first reflection member can be obtained through the following method, so that the RFID identification performance of the sample preservation device is optimized. The optimal selection method comprises the following steps that S120, n first measured reflecting pieces with different effective areas are provided, n is larger than or equal to 1, and each first measured reflecting piece is made of a material capable of reflecting electromagnetic waves; n first tested reflectors with different effective areas are arranged on the side, facing the storage space, of the RFID antenna one by one, and corresponding RFID performance indexes are obtained through the RFID assembly when the first tested reflectors with different effective areas are arranged on the side, facing the storage space, of the RFID antenna. And step S140, determining the effective area of the first reflector according to each RFID performance index obtained in the step S130.

Description

Technical Field

[0001] The present application relates to the field of sample preservation, and particularly to a sample preservation device and a method for improving the RFID recognition performance of a sample preservation device. Background Art

[0002] A biological sample preservation box can be used for cryopreserving biological samples such as blood samples and urine samples. The biological sample preservation box mainly includes a box body, a cover body, a housing and a refrigeration unit arranged in the box body. When the cover body covers the box body, the cover body closes the opening of the housing to form a closed accommodation space for accommodating biological samples. The refrigeration unit is used for refrigerating the accommodation space so that biological samples can be stored for a long time.

[0003] In use, biological samples are accommodated in biological sample containers such as test tube sleeves, and each biological sample container accommodating biological samples is placed in the accommodation space. In order to distinguish each biological sample, an RFID tag must be set on the biological sample container. Thus, the biological sample preservation box further includes an RFID antenna and a processor. The RFID antenna is arranged in the cover body, and the processor transmits and receives RFID signals to the accommodation space through the RFID antenna to read the information of each biological sample in the accommodation space.

[0004] When the refrigeration unit refrigerates the accommodation space, the heat in the accommodation space is transferred to the refrigeration unit through the side wall of the housing. In order to achieve a better refrigeration effect, the housing is usually made of a metal material with good thermal conductivity. However, the housing made of the metal material will reflect the signal emitted by the RFID antenna, and the signal emitted by the RFID antenna and the signal reflected by the housing may interfere with each other. The signals in some areas are superimposed and enhanced, while the signals in some areas are cancelled and weakened, resulting in uneven RFID signal intensity and phase change in the accommodation space, and the RFID tags in some areas cannot be correctly read quickly. Summary of the Invention

[0005] Embodiments of the present application provide a sample preservation device and a method for improving RFID recognition performance to improve the RFID recognition performance of the sample preservation device.

[0006] An optional embodiment of the present application discloses a sample preservation device, which includes: a box body, a cover body, an RFID component and a first reflector;

[0007] The box body includes a first housing made of a material capable of reflecting electromagnetic waves. A storage space for placing samples provided with RFID tags is arranged in the first housing, and an opening communicating the storage space with the outside is further arranged on the first housing;

[0008] The cover body can cover the opening;

[0009] The RFID component includes an RFID antenna and an RFID reader electrically connected to the RFID antenna. The RFID antenna is disposed on the cover body, and the emitting surface of the RFID antenna faces the storage space. The RFID reader is configured to read information of an RFID tag in the storage space through the RFID antenna;

[0010] The first reflector is made of a material capable of reflecting electromagnetic waves; the first reflector is disposed on the cover body and on a side of the RFID antenna facing the storage space. A gap is formed between the first reflector and the RFID antenna. The effective area of the first reflector is smaller than the cross-sectional area of the position of the internal space of the first housing where the first reflector is located or the effective area of the first reflector is smaller than the cross-sectional area of the position of the internal space of the first housing where the opening is located;

[0011] The effective area of the first reflector is determined by the following method to optimize the RFID recognition performance of the sample storage device:

[0012] S120. Provide n first measured reflectors with different effective areas, where n≥1, and each of the first measured reflectors is made of a material capable of reflecting electromagnetic waves;

[0013] S130. Sequentially dispose the n first measured reflectors with different effective areas on a side of the RFID antenna facing the storage space, and obtain respective RFID performance indicators corresponding to when each of the first measured reflectors with different effective areas is disposed on the side of the RFID antenna facing the storage space through the RFID component;

[0014] S140. Determine the effective area of the first reflector according to the respective RFID performance indicators obtained in step S130.

[0015] Beneficial effects: A first reflector with a suitable size and / or shape is disposed on a side of the RFID antenna facing the storage space to change the propagation path of the RFID signal, adjust the RFID signal intensity distribution in the storage space, reduce the size of the area where the RFID signal intensity is reduced due to interference cancellation in the prior art, and enhance the signal intensity in the area where the RFID signal intensity is reduced due to interference cancellation in the prior art, so that the RFID signal intensity distribution in the storage space is more uniform, thereby avoiding the situation that an RFID tag located in an area with weak RFID signal intensity cannot be read. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] To more comprehensively understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0018] Figure 1 It is the first structural schematic diagram of the sample storage device in the embodiment of the present application.

[0019] Figure 2 It is the second structural schematic diagram of the sample storage device in the embodiment of the present application.

[0020] Figure 3 It is the first schematic diagram of the positional relationship between the box body and the first reflector in the sample storage device in the embodiment of the present application.

[0021] Figure 4 It is the second schematic diagram of the positional relationship between the box body and the first reflector in the sample storage device in the embodiment of the present application.

[0022] Figure 5 It is the schematic diagram of the electrical connection between the RFID antenna and the RFID reader in the embodiment of the present application.

[0023] Figure 6 It is the schematic diagram of a sample container containing an RFID tag and equipped with a test tube in the embodiment of the present application.

[0024] Figure 7 For Figure 6 The sectional view of the sample container containing an RFID tag and the test tube along the A-A direction as shown.

[0025] Figure 8 For Figure 6 The sectional view of the sample container containing an RFID tag along the A-A direction as shown.

[0026] Figure 9 It is the application schematic diagram of the sample storage device in the embodiment of the present application with a sample container installed.

[0027] Figure 10 It is the third structural schematic diagram of the sample storage device in the embodiment of the present application.

[0028] Figure 11 It is the structural schematic diagram of the box body in the sample storage device in the embodiment of the present application.

[0029] Figure 12This is the fourth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0030] Figure 13 This is the fifth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0031] Figure 14 This is the third schematic diagram of the positional relationship between the box body and the first reflector in the sample storage device according to the embodiments of the present application.

[0032] Figure 15 This is the sixth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0033] Figure 16 This is the seventh structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0034] Figure 17 This is the eighth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0035] Figure 18 This is the ninth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0036] Figure 19 This is the tenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0037] Figure 20 This is the eleventh structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0038] Figure 21 This is the twelfth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0039] Figure 22 This is the thirteenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0040] Figure 23 This is the fourteenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0041] Figure 24 This is the fifteenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0042] Figure 25 This is the sixteenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0043] Figure 26 This is the seventeenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0044] Figure 27 This is the eighteenth structural schematic diagram of the sample storage device according to the embodiments of the present application.

[0045] Figure 28 This is a schematic structural diagram of the sample storage device in the embodiment of the present application during the test.

[0046] Figures 29 - 32 This is a flowchart of the method for improving the RFID recognition performance of the sample storage device in the embodiment of the present application.

[0047] Figure 33 This is a curve graph of the recognition accuracy rate of the B1 test chamber in the embodiment of the present application during the test.

[0048] Figure 34 This is a curve graph of the average signal strength of the B1 test chamber in the embodiment of the present application during the test.

[0049] Figure 35 This is a curve graph of the recognition accuracy rate of the B2 test chamber in the embodiment of the present application during the test.

[0050] Figure 36 This is a curve graph of the average signal strength of the B2 test chamber in the embodiment of the present application during the test.

[0051] Figure 37 This is a curve graph of the recognition accuracy rate of the B2 test chamber in the embodiment of the present application during the test.

[0052] Figure 38 This is a curve graph of the average signal strength of the B2 test chamber in the embodiment of the present application during the test.

[0053] Figure 39 This is a curve graph of the recognition accuracy rate of the B2 test chamber in the embodiment of the present application during the test.

[0054] Figure 40 This is a curve graph of the average signal strength of the B2 test chamber in the embodiment of the present application during the test.

[0055] Figure 41 This is a curve graph of the recognition accuracy rate of the B2 test chamber in the embodiment of the present application during the test.

[0056] Figure 42 This is a curve graph of the average signal strength of the B2 test chamber in the embodiment of the present application during the test.

[0057] In the illustration: 10, the first reflector; 12, the gap; 13, the opening; 10a, the first reflector to be measured; 20, the second reflector; 20a, the second reflector to be measured; 30, the box body; 31, the first housing; 311, the first side wall; 313, the first bottom wall; 315, the first extension; 33, the second housing; 331, the second side wall; 333, the second bottom wall; 335, the second extension; 32, the opening; 32a, the article opening; 32b, the signal opening; 34, the storage space; 35a, the cross-section; 35b, the cross-section; 36, the spaced space; 37, the partition; 40, the RFID assembly; 41, the RFID antenna; 42, the RFID reader; 50, the cover body; 53, the metal baffle; 60, the bracket; 70, the connecting member; 100, the sample storage device; 200, the sample container; 210, the RFID tag; 220, the text tag; 300, the sample container rack; 400, the test tube. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present application.

[0059] As used herein, the mention of "embodiment" or "implementation manner" means that a specific feature, structure, or characteristic described in connection with the embodiment or implementation manner may be included in at least one embodiment of the present application. The phrase appears in various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

[0060] As Figures 1 - 9 , the sample storage device 100 of the embodiment of the present application includes a box body 30, a cover body 50, an RFID assembly 40, and a first reflector 10;

[0061] The box body 30 includes a first housing 31 made of a material capable of reflecting electromagnetic waves. A storage space 34 for placing samples provided with RFID tags 210 is provided inside the first housing 31. An opening 32 for communicating the storage space 34 with the outside is further provided on the first housing 31; the cover body 50 covers the box body 30 and can cover or open the opening 32.

[0062] The RFID component 40 includes an RFID antenna 41 and an RFID reader 42 electrically connected to the RFID antenna 41. The RFID antenna 41 is disposed on the cover body 50, and the emitting surface of the RFID antenna 41 faces the storage space 34. The RFID reader 42 is configured to read the information of the RFID tag 210 in the storage space 34 through the RFID antenna 41.

[0063] The first reflector 10 is made of a material capable of reflecting electromagnetic waves; the first reflector 10 is disposed on the cover body 50 and is located on the side of the RFID antenna 41 facing the storage space 34. An interval is formed between the first reflector 10 and the RFID antenna 41. The effective area of the first reflector 10 is smaller than the area of the cross-section 35a of the position of the internal space of the first housing 31 where the first reflector 10 is located or the effective area of the first reflector 10 is smaller than the area of the cross-section 35b of the position of the internal space of the first housing 31 where the opening 32 is located.

[0064] In various embodiments of the present application, the material capable of reflecting electromagnetic waves may include copper, aluminum, stainless steel, etc., and those skilled in the art can select according to actual needs.

[0065] Combined Figure 28 and Figure 29 , embodiments of the present application can determine the effective area of the first reflector 10 through the following method to optimize the RFID recognition performance of the sample storage device 100. The method, that is, the method for improving the RFID recognition performance of the sample storage device 100 includes step S120, step S130, and step S140.

[0066] Step S120: Provide n first measured reflectors 10a with different effective areas, where n≥1, and each first measured reflector 10a is made of a material capable of reflecting electromagnetic waves.

[0067] Step S130: Sequentially dispose the n first measured reflectors 10a with different effective areas on the side of the RFID antenna 41 facing the storage space 34, and obtain respective RFID performance indicators corresponding to when each of the first measured reflectors 10a with different effective areas is disposed on the side of the RFID antenna 41 facing the storage space 34 through the RFID component 40.

[0068] Step S140: Determine the effective area of the first reflector 10 according to the respective RFID performance indicators obtained in step S130.

[0069] Based on this, in the embodiments of the present application, the sample storage device 100 with the first reflector 10 of appropriate size has been experimentally verified to improve the RFID performance compared to the sample storage device without the first reflector, and the possibility of the RFID tag 210 being read is increased. For example, the first reflector 10 changes the direction of the RFID signal entering the storage space 34, and the direction and angle of the RFID signal that the first housing 31 can reflect also change accordingly. Thus, the RFID signal intensity distribution in the storage space 34 also changes accordingly. By adjusting the size of the first reflector 10a, the RFID signal intensity distribution in the storage space 34 can be adjusted, the size of the area where the RFID signal intensity is reduced due to destructive interference is reduced, and the signal intensity in the area where the RFID signal intensity is reduced due to destructive interference is enhanced, so that the RFID signal intensity distribution in the storage space 34 is more uniform, thereby avoiding the situation where the RFID tag 210 located in the area with weak RFID signal intensity cannot be read.

[0070] Among them, there are various ways to determine the effective area of the first reflector 10 according to the obtained RFID performance indicators in step S140. In the first alternative embodiment, step S140 includes: setting the effective area of the first measured reflector 10a corresponding to the detected optimal RFID performance indicator as the effective area of the first reflector 10. In the second alternative embodiment, before step S120, the method further includes step S110: obtaining the RFID reference performance indicator when the sample storage device 100 does not set the first measured reflector 10a and the second measured reflector 20a described below, that is, no reflector is set when obtaining the RFID reference performance indicator; step S140 includes: determining the effective area of the first reflector 10 according to the effective areas of the first measured reflectors 10a corresponding to the RFID performance indicators that are better than the RFID reference performance indicator. Among them, the RFID performance indicator and the RFID reference performance indicator may include the recognition accuracy rate and / or the average signal intensity, and may also include other performance indicators related to the RFID recognition performance.

[0071] First, the structural part of the sample storage device 100 will be described below.

[0072] In the first structural embodiment of the sample storage device 100, as Figure 1 shown, a gap 12 is formed between the edge of the first reflector 10 and the edge of the opening 32. It can be understood that: there is a gap 12 between the edge of the first reflector 10 and the edge of the first housing 31 where the opening 32 is located. When the cover body 50 is covered on the opening 32, the cover body 50 completely covers the opening 32, and a gap 12 is formed between the first reflector 10 and the opening 32, so that the signal emitted by the RFID antenna located on the cover body 50 can enter the storage space 34 through the gap 12.

[0073] The second structural embodiment of the sample storage device 100 is as follows Figure 2 As shown, an opening 13 penetrating through both sides of the first reflector 10 is provided on the first reflector 10. It can be understood that the opening 13 penetrates through the first reflector 10 along the thickness direction of the first reflector 10. The opening 13 can be one or multiple. The size and quantity of the opening 13 can be set according to requirements. It should be noted that when the cover body 50 is covered on the opening 32, the cover body 50 completely covers the opening 32, and the opening 13 is located above the opening 32.

[0074] Optionally, there is a gap 12 between the edge of the first reflector 10 and the edge of the first housing 31 where the opening 32 is located, and an opening 13 penetrating through both sides of the first reflector 10 is provided on the first reflector 10.

[0075] The first housing 31 includes a first side wall 311 and a first bottom wall 313. The first side wall 311 is connected to the periphery of the first bottom wall 313 to enclose the first housing 31. The area enclosed by the first side wall 311, the first bottom wall 313, and the opening 32 of the first housing 31 is the internal space of the first housing 31. The storage space 34 is provided in the internal space of the first housing 31, or it can also be understood that the storage space 34 belongs to a part of the internal space of the first housing 31. When the cover body 50 is covered on the opening 32, when the first reflector 10 is in different positions relative to the opening 32, or rather, when the first reflector 10 is in different positions relative to the internal space of the first housing 31, the definition method of the effective area of the first reflector 10 will also be different.

[0076] An optional embodiment is as follows Figure 3 As shown, when the cover body 50 is covered on the opening 32, the first reflector 10 of the first structure and the first reflector 10 of the second structure of the sample storage device 100 can both be located inside the opening 32, that is, inside the internal space of the first housing 31. In this embodiment, the effective area of the first reflector 10 can be understood as the actual area of the first reflector 10, and the effective area of the first reflector 10 is smaller than the area of the cross-section 35a at the position of the internal space of the first housing 31 where the first reflector 10 is located. Specifically, the cross-section 35a is a virtual plane located in the internal space of the first housing 31, and the cross-section 35a is in the same plane as the first reflector 10.

[0077] Another optional embodiment is as follows Figure 4As shown, when the cover 50 covers the opening 32, the first reflector 10 of the first structure and the first reflector 10 of the second structure of the sample storage device 100 can both be located outside the opening 32, that is, outside the internal space of the first housing 31. In this embodiment, the effective area of the first reflector 10 can be understood as the area s within the projection area of the first reflector 10 on the opening 32. The actual area of the first reflector 10 can be greater than the effective area of the first reflector 10, or the actual area of the first reflector 10 can also be equal to the effective area of the first reflector 10, but the effective area of the first reflector 10 is smaller than the area of the cross-section 35b at the position of the internal space of the first housing 31 where the opening 32 is located. Specifically, the cross-section 35b is a virtual plane at the position of the opening 32 of the first housing 31, and its area is equal to the area of the opening 32 of the first housing 31. If the first reflector 10 is exactly located at the position of the opening 32, the effective area of the first reflector 10 can also be determined by the above method.

[0078] It should be noted that when the first reflector 10 is provided with an opening 13, the area of the opening 13 is not included in the actual area and the effective area of the first reflector 10.

[0079] Exemplarily, when the first reflector 10 and the RFID antenna 41 are both provided on the cover 50, the cover 50 can be made of a material that can transmit electromagnetic waves, such as a non-metallic material. For example, the cover 50 is made of plastic. Exemplarily, the cover 50 can be movably connected to the box body 30. For example, the cover 50 is connected to the box body 30, and the cover 50 can move or rotate relative to the box body 30 to open and cover the opening 32 of the box body 30. Specifically, the cover 50 and the box body 30 are hinged, and the cover 50 can rotate relative to the box body 30 through a hinge structural member such as a rotating shaft, so that the cover 50 can open and close the opening 32. It can be understood that when the box body 30 only includes the first housing 31, the cover 50 is directly connected to the first housing 31; when the box body 30 further includes other housings, the cover 50 can be connected to other housings. For example, the cover 50 and Figure 10 the second housing 33 shown is connected.

[0080] The third structural embodiment of the sample storage device 100, that is, the first embodiment of the box body 30, as Figure 10 and Figure 11As shown, the box body 30 may include a plurality of housing structures. For example, the box body 30 further includes a second housing 33. The second housing 33 is sleeved outside the first housing 31, and an interval space 36 is formed between the outside of the first housing 31 and the inside of the second housing 33. Among them, the cover body 50 can be connected to at least one of the first housing 31 and the second housing 33 to enable the cover body 50 to move relative to the first housing 31 and the second housing 33, such as rotation, so as to facilitate opening and covering the opening 32.

[0081] In one case, both the first housing 31 and the second housing 33 can be assembled from two components. For example, the first housing 31 is made of a material capable of reflecting electromagnetic waves, such as metal, and the metal may include but is not limited to copper, aluminum, and stainless steel. The second housing 33 can be a metal component or a non-metal component. For example, the second housing 33 is a plastic component. The first housing 31 is disposed inside the second housing 33, or in other words, the second housing 33 is sleeved outside the first housing 31. The storage space 34 of the box body 30 is formed inside the first housing 31, and the opening 32 of the first housing 31 is the opening of the box body 30.

[0082] Exemplarily, the first housing 31 includes a first side wall 311 and a first bottom wall 313. The first side wall 311 is connected to the periphery of the first bottom wall 313 to enclose and form the first housing 31. The second housing 33 includes a second side wall 331 and a second bottom wall 333. The second side wall 331 is connected to the periphery of the second bottom wall 333 to enclose and form the second housing 33. The first side wall 311 and the second side wall 331 can be spaced apart, and the first bottom wall 313 and the second bottom wall 333 can be spaced apart, so that an interval space 36 is formed between the outside of the first housing 31 and the inside of the second housing 33. The interval space 36 can be used to arrange heat insulation materials and electronic components such as an RFID reader 42 and a temperature control unit. It should be noted that the first side wall 311 and the second side wall 331 can also be attached or connected, and the first bottom wall 313 and the second bottom wall 333 can also be attached or connected.

[0083] Exemplarily, the first housing 31 further includes a first extension 315, and the second housing 33 further includes a second extension 335. The first extension 315 is connected to one end of the first side wall 311 away from the first bottom wall 313, and the second extension 335 is connected to one end of the second side wall 331 away from the second bottom wall 333. The first extension 315 and the second extension 335 are connected. The first extension 315 and the second extension 335 can jointly support the cover body 50.

[0084] In another case, both the first housing 31 and the second housing 33 are two components formed from one component through a processing technique. For example, the first housing 31 is made of a non-metallic material, and a metal layer structure is provided on the periphery of the first housing 31. Specifically, a metal layer structure can be formed on the periphery of the first housing 31 by electroplating or bonding. This metal layer structure can also be referred to as a shielding layer and can reflect electromagnetic waves.

[0085] The second embodiment of the housing 30 is as Figures 1 - 4 , compared with the first embodiment of the housing 30, the housing 30 includes only the first housing 31 made of metal and does not include the second housing 33. In other embodiments, the housing 30 can also include only the second housing 33 and not the first housing 31. The second housing 33 is made of metal. Thus, the storage space 34 of the housing 30 is formed inside the second housing 33, and the opening of the second housing 33 is the opening 32 of the housing 30.

[0086] Exemplarily, the sample storage device 100 further includes a second reflector 20 made of a material capable of reflecting electromagnetic waves. The second reflector 20 is disposed on the cover 50 and on the side of the RFID antenna 41 away from the storage space 34. Exemplarily, the area of the second reflector 20 is greater than or equal to the area of the opening 32 of the first housing 31, and the projection of the second reflector 20 completely covers the opening 32.

[0087] Other structural embodiments of the sample storage device 100 are as Figures 12 - 16 shown, both the first reflector 10 and the RFID antenna 41 are disposed on a predetermined wall of the first housing 31. The predetermined wall can be one of the side walls, multiple side walls, one bottom wall, or multiple bottom walls of the first housing 31. In this application, the case where the predetermined wall is one of the side walls or multiple side walls of the first housing 31 is taken as an example for exemplary illustration. The predetermined wall can be a metal material, a non-metallic material, or also a part of metal material and a part of non-metallic material. In this embodiment, the cover 50 is made of metal, or the cover 50 is provided with a metal baffle 53. When the cover 50 covers the opening 32, the metal baffle 53 completely covers the opening 32 to prevent the RFID signal from leaking from the opening 32 and affecting the RFID recognition performance.

[0088] The fourth structural embodiment of the sample storage device 100 is as Figure 12 shown, as Figure 1The difference is that the first housing 31 is made of a material capable of reflecting electromagnetic waves. The RFID antenna 41 is disposed within the first housing 31, and the transmitting surface of the RFID antenna 41 faces the center of the storage space 34. The first reflector 10 is disposed within the first housing 31 and is located on the side of the RFID antenna 41 facing the center of the storage space 34. A gap is formed between the first reflector 10 and the RFID antenna 41. The effective area of the first reflector 10 is smaller than the area of the cross-section 35a of the position of the internal space of the first housing 31 where the first reflector 10 is located. In this embodiment, a gap 12 is formed between the edge of the first reflector 10 and the inner wall of the first housing 31; the gap 12 may refer to Figure 1 the gap 12, which will not be elaborated here.

[0089] The fifth structural embodiment of the sample storage device 100 is as Figure 13 shown, and the difference from Figure 12 is that the first reflector 10 is provided with an opening 13 penetrating both sides of the first reflector 10; the opening 13 may refer to Figure 2 the opening 13, which will not be elaborated here. Optionally, a gap 12 is formed between the edge of the first reflector 10 and the inner wall of the first housing 31, and the first reflector 10 is provided with an opening 13.

[0090] As Figure 14 shown, in the fourth and fifth structural embodiments of the sample storage device 100, the effective area of the first reflector 10 is smaller than the area of the cross-section 35a of the position of the internal space of the first housing 31 where the first reflector 10 is located. The cross-section 35a is defined by the side wall 311, the bottom wall 313 of the first housing 31, and the position where the opening 32 is located. In this embodiment, the first reflector 10 is disposed within the first housing 31, and the effective area of the first reflector 10 is equal to the actual area of the first reflector 10.

[0091] In the fourth and fifth structural embodiments of the sample storage device 100, the cover 50 is made of a material capable of reflecting electromagnetic waves, such as metal.

[0092] In the fourth and fifth structural embodiments of the sample storage device 100, both the first reflector 10 and the RFID antenna 41 are disposed on the inner surface of a predetermined wall of the first housing 31. The predetermined wall may be a part of the first side wall 311 of the first housing 31, or it may be the first bottom wall 313 of the first housing 31. In one case, the RFID antenna 41 is directly or indirectly fixed on the inner surface of the first side wall 311, and the first reflector 10 is fixed on the RFID antenna 41 through a non-metallic bracket 60. In another case, the RFID antenna 41 is directly or indirectly fixed on the inner surface of the first side wall 311, and the first reflector 10 is directly or indirectly fixed on the inner surface of the first side wall 311 through a non-metallic bracket 60. In this case, the bracket 60 is spaced from the RFID antenna 41.

[0093] The sixth structural embodiment of the sample storage device 100 is as Figure 15 shown, and the difference from Figure 12 is that: the cover body 50 is provided with a metal baffle 53. When the cover body 50 covers the opening 32, the metal baffle 53 completely covers the opening 32 to prevent the RFID signal from leaking from the opening 32 and affecting the RFID identification performance.

[0094] The seventh structural embodiment of the sample storage device 100 is as Figure 16 shown, and the difference from Figure 12 is that: the box body 30 further includes a second housing 33; the second housing 33 is sleeved outside the first housing 31, and a spaced space 36 is formed between the outside of the first housing 31 and the inside of the second housing 33. The second housing 33 and the connection relationship between the second housing 33 and the first housing 31 can refer to Figure 10 and Figure 11 , which will not be elaborated here. Exemplarily, the sample storage device 100 further includes a second reflector 20 made of a material capable of reflecting electromagnetic waves. The second reflector 20 is disposed inside the first housing 31 and on the side of the RFID antenna 41 away from the center of the storage space 34. Exemplarily, the area of the second reflector 20 is larger than the area of the first reflector 10.

[0095] Other structural embodiments of the sample storage device 100 are as Figures 17 - 27 shown, in combination with Figure 3 , Figure 4 and Figure 14, the first housing 31 is made of a material capable of reflecting electromagnetic waves. An accommodation space 34 for placing a sample container 200 containing an RFID tag 210 is provided inside the first housing 31. The first housing 31 is further provided with an article opening 32a and a signal opening 32b that communicate the accommodation space 34 with the outside; a cover 50 can be covered on the article opening 32a. The cover 50 is made of metal or the cover 50 is provided with a metal baffle 53. When the cover 50 covers the article opening 32a, the metal baffle 53 completely covers the article opening 32a to prevent the RFID signal from leaking from the article opening 32a and affecting the RFID recognition performance. The RFID antenna 41 is disposed inside or outside the signal opening 32b or disposed at the signal opening 32b, and the emitting surface of the RFID antenna 41 faces the center of the accommodation space 34. The first reflector 10 is made of a material capable of reflecting electromagnetic waves; the first reflector 10 is disposed on the side of the RFID antenna 41 facing the center of the accommodation space 34, and a gap is formed between the first reflector 10 and the RFID antenna 41. The effective area of the first reflector 10 is smaller than the area of the cross-section 35a of the position of the internal space of the first housing 31 where the first reflector 10 is located or the effective area of the first reflector 10 is smaller than the area of the cross-section 35b of the position of the internal space of the first housing 31 where the signal opening 32b is located. When the first reflector 10 is disposed inside the signal opening 32b, the effective area of the first reflector 10 is smaller than the area of the cross-section 35a of the position of the first housing 31 where the first reflector 10 is located, such as Figure 3 and Figure 14 the cross-section 35a shown. When the first reflector 10 is disposed at the position of the signal opening 32b, the effective area of the first reflector 10 is smaller than the area of the cross-section 35b of the position of the first housing 31 where the signal opening 32b is located, such as Figure 14 the cross-section 35b shown. Among them, the internal space of the first housing 31 is a space jointly enclosed by the first side wall 311, the first bottom wall 313, the article opening 32a, and the signal opening 32b of the first housing 31. The relationship between the cross-section 35a and the cross-section 35b and the internal space of the first housing 31 and the signal opening 32b can refer to the relationship between the cross-section 35a and the cross-section 35b and the internal space of the first housing 31 and the opening 32 in the embodiments of the first structure and the second structure described above.

[0096] The eighth structural embodiment of the sample storage device 100 is as shown in Figure 17 shown, a gap 12 is formed between the edge of the first reflector 10 and the edge of the signal opening 32b. The gap 12 can refer to Figure 1The gap 12 will not be elaborated here again. In this embodiment, the first reflector 10 and the RFID antenna 41 are arranged inside the signal opening 32b or at the position where the signal opening 32b is located, and the effective area of the first reflector 10 is equal to the actual area of the first reflector 10.

[0097] The ninth structural embodiment of the sample storage device 100 is as Figure 18 shown. An opening 13 penetrating through both sides of the first reflector 10 is provided on the first reflector 10; the opening 13 can refer to Figure 2 the opening 13, which will not be elaborated here again. Optionally, a gap 12 is formed between the edge of the first reflector 10 and the edge of the signal opening 32b, and the first reflector 10 is provided with the opening 13. In this embodiment, the first reflector 10 and the RFID antenna 41 are arranged inside the signal opening 32b or at the position where the signal opening 32b is located, and the effective area of the first reflector 10 is equal to the actual area of the first reflector 10.

[0098] In the eighth and ninth structural embodiments of the sample storage device 100, the cover 50 is made of a material capable of reflecting electromagnetic waves, such as metal.

[0099] The eighth and ninth structural embodiments of the sample storage device 100 are as Figure 17 and Figure 18 shown. The sample storage device 100 further includes a second reflector 20 made of a material capable of reflecting electromagnetic waves. The second reflector 20 is arranged on the side of the RFID antenna 41 away from the center of the storage space 34. In this embodiment, the signal opening 32b can be understood as being jointly enclosed by the first bottom wall 313, the first side wall 311 of the first housing 31 and the article opening 32a; or the signal opening 32b can be understood as being jointly enclosed by the first bottom wall 313, the first side wall 311 of the first housing 31 and the cover 50. Exemplarily, the second reflector 20 can be directly connected to the first housing 31. Specifically, the edge of the second reflector 20 is partially connected to the edge of the signal opening 32b of the first housing 31, such as the edge of the second reflector 20 is connected to the edges of the first bottom wall 313 and the first side wall 311. The second reflector 20 can close the signal opening 32b. In this embodiment, both the RFID antenna 41 and the first reflector 10 are arranged on the second reflector 20. Specifically, the RFID antenna 41 is directly arranged on the second reflector 20, and the first reflector 10 is fixed on the RFID antenna 41 or the second reflector 20 through a bracket 60.

[0100] The tenth structural embodiment of the sample storage device 100 is as Figure 19 shown. Compared with Figure 17The difference lies in that the cover body 50 is provided with a metal baffle 53. When the cover body 50 covers the opening 32, the metal baffle 53 completely covers the opening 32 to prevent the RFID signal from leaking from the opening 32 and affecting the RFID identification performance.

[0101] The eleventh structural embodiment of the sample storage device 100 is as Figure 20 shown, and the difference from Figure 17 is that the cover body 50 is provided with a second reflector 20, and the bottom of the second reflector 20 is fixed on the first bottom wall 313 through a metal or non-metal connecting member 70.

[0102] Figures 17 - 20 In the embodiment shown, the box body 30 may further include a second housing, and the second housing may refer to the second housing 33 of Figure 10 and Figure 11 and will not be elaborated here.

[0103] For other embodiments of the sample storage device 100, such as Figures 21 - 27 , the sample storage device 100 further includes a partition 37, and the signal opening 32b is covered with a partition 37 made of a material that can transmit electromagnetic waves. The first reflector 10 and the RFID antenna 41 may be disposed on the partition 37, and at least one of them may be disposed on the inner side or the outer side of the partition 37. It can be understood that the inner side of the partition 37 is the side facing the storage space 34, and the outer side of the partition 37 is the side away from the storage space 34. When the box body 30 of the sample storage device 100 is not limited to the first housing 31, for example, it further includes a second housing 33, at least one of the first reflector 10 and the RFID antenna 41 may be disposed on the inner side of the second housing 33, that is, the side close to the first housing 31. Specifically, the box body 30 further includes a second housing 33; the second housing 33 is sleeved outside the first housing 31, and an interval space 36 is formed between the outer side of the first housing 31 and the inner side of the second housing 33; the first reflector 10 and the RFID antenna 41 are located inside the second housing 33.

[0104] The twelfth structural embodiment of the sample storage device 100 is as Figure 21 shown, and the difference from Figures 17 - 20 is that the signal opening 32b is covered with a partition 37 made of a material that can transmit electromagnetic waves, and both the first reflector 10 and the RFID antenna 41 are disposed on the inner side of the partition 37. Specifically, the RFID antenna 41 is directly fixed on the inner side of the partition 37, and the first reflector 10 is fixed on the RFID antenna 41 or the partition 37 through a bracket 60. In this embodiment, the sample storage device 100 further includes a second reflector 20, and the second reflector 20 is disposed outside the partition 37, for example, the second reflector 20 is disposed on the inner side of the second housing 33.

[0105] The thirteenth structural embodiment of the sample storage device 100 is as follows Figure 22 shown, the difference from Figure 21 is that the first reflector 10 is arranged on the inner side of the partition 37, and the RFID antenna 41 is arranged on the outer side of the partition 37. Specifically, the RFID antenna 41 is arranged on the inner side of the second housing 33. In this embodiment, the sample storage device 100 further includes a second reflector 20, and the second reflector 20 is arranged on the outer side of the partition 37. For example, the second reflector 20 is arranged on the inner side of the second housing 33, and the RFID antenna 41 is arranged on the side of the second reflector 20 away from the second housing 33.

[0106] The fourteenth structural embodiment of the sample storage device 100 is as follows Figure 23 shown, the difference from Figure 21 is that the first reflector 10 is arranged on the inner side of the partition 37, and the RFID antenna 41 is arranged on the outer side of the partition 37. Specifically, the RFID antenna 41 is arranged on the outer side of the partition 37. In this embodiment, the sample storage device 100 further includes a second reflector 20, and the second reflector 20 is arranged on the outer side of the partition 37. For example, the second reflector 20 is arranged on the inner side of the second housing 33.

[0107] The fifteenth structural embodiment of the sample storage device 100 is as follows Figure 24 shown, the difference from Figure 23 is that the second reflector 20 is arranged on the outer side of the partition 37. Specifically, the RFID antenna 41 is arranged on the outer side of the partition 37, and the second reflector 20 is arranged on the side of the RFID antenna 41 away from the partition 37. Or the second reflector 20 is fixed to the partition 37 by a bracket.

[0108] The sixteenth structural embodiment of the sample storage device 100 is as follows Figure 25 shown, the difference from Figure 21 is that the first reflector 10 is arranged on the outer side of the partition 37, and the RFID antenna 41 is arranged on the outer side of the partition 37. Specifically, the RFID antenna 41 is arranged on the inner side of the second housing 33. In this embodiment, the sample storage device 100 further includes a second reflector 20, and the second reflector 20 is arranged on the inner side of the second housing 33, and the RFID antenna 41 is arranged on the side of the second reflector 20 away from the second housing 33.

[0109] The seventeenth structural embodiment of the sample storage device 100 is as follows Figure 26 shown, the difference from Figure 25The difference is that the first reflector 10 is disposed outside the partition 37. Specifically, the RFID antenna 41 is disposed on the inner side surface of the second housing 33, and the first reflector 10 is fixed on the RFID antenna 41 or on the inner side surface of the second housing 33 through a bracket 60. In this embodiment, the sample storage device 100 further includes a second reflector 20, which is disposed on the inner side surface of the second housing 33. The RFID antenna 41 is disposed on a surface of the second reflector 20 away from the second housing 33, and the first reflector 10 is fixed on the RFID antenna 41 or on a surface of the second reflector 20 away from the second housing 33 through a bracket 60.

[0110] The eighteenth structural embodiment of the sample storage device 100 is as Figure 27 shown, and the difference from Figure 25 is that the first reflector 10 is disposed on the outer side surface of the partition 37, and the RFID antenna 41 is disposed on the outer side surface of the partition 37. Specifically, the first reflector 10 is disposed on the outer side surface of the partition 37, and the RFID antenna 41 is fixed on a surface of the first reflector 10 away from the partition 37 or on the outer side surface of the partition 37 through a bracket 60. In this embodiment, the sample storage device 100 further includes a second reflector 20, which is disposed on the inner side surface of the second housing 33. It should be noted that in this embodiment, it is also possible to dispose the second reflector 20 on the RFID antenna 41.

[0111] Figures 1 - 4 In the embodiment shown in Figure 28 and Figure 30 , the area of the second reflector 20 can be determined by the following method in this embodiment to optimize the RFID identification performance of the sample storage device 100. The method, that is, the method for improving the RFID identification performance of the sample storage device 100, includes step S220, step S230, and step S240.

[0112] Step S220: Provide m second reflectors to be measured 20a with different areas, where m≥1, and each second reflector to be measured 20a is made of a material capable of reflecting electromagnetic waves.

[0113] Step S230: Dispose the m second reflectors to be measured 20a with different areas on a side of the RFID antenna 41 away from the storage space 34 one by one, and obtain respective RFID performance indicators corresponding to when each different second reflector to be measured 20a is disposed on the side of the RFID antenna 41 away from the storage space 34 through the RFID component 40.

[0114] Step S240: Determine the area of the second reflector 20 according to the respective RFID performance indicators obtained in step S230.

[0115] Figures 1 - 4In the illustrated embodiment, in combination with Figure 28 and Figure 31 , the effective area of the first reflector 10 and the area of the second reflector 20 can also be determined in the embodiment by the following method, which is also the method for improving the RFID recognition performance of the sample storage device 100 and includes the following steps:

[0116] S310: Provide n first measured reflectors 10a with different effective areas and m second measured reflectors 20a with different areas. Number each of the first measured reflectors 10a from 1 to n and each of the second measured reflectors 20a from 1 to m. Here, n≥1, m≥1, and each of the first measured reflectors 10a and each of the second measured reflectors 20a are made of a material capable of reflecting electromagnetic waves;

[0117] S320: Let i = 1 and j = 1;

[0118] S330: Set one of the first measured reflectors 10a, that is, the i-th first measured reflector 10a, on the side of the RFID antenna 41 facing the storage space 34, and set one of the second measured reflectors 20a, that is, the j-th second measured reflector 20a, on the side of the RFID antenna 41 away from the storage space 34;

[0119] S340: Obtain the current RFID performance index through the RFID component 40;

[0120] S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350; otherwise, execute step S360;

[0121] S360: Let i = 1 and j = j + 1. If j is not greater than m, repeat steps S330, S340, and S350; otherwise, execute step S370;

[0122] S370: Determine the effective area of the first reflector 10 and the area of the second reflector 20 according to the various RFID performance indexes obtained in the above steps.

[0123] Figures 12 - 16 In the illustrated embodiment, in combination with Figure 28 and Figure 29 , the effective area of the first reflector 10 can be determined in the embodiment by the following method to optimize the RFID recognition performance of the sample storage device 100. This method is also the method for improving the RFID recognition performance of the sample storage device 100 and includes step S120, step S130, and step S140.

[0124] Step S120: Provide n first test reflectors 10a with different effective areas, where n≥1, and the first test reflectors 10a are made of materials capable of reflecting electromagnetic waves.

[0125] Step S130: Successively set the n first test reflectors (10a) with different effective areas on the central side of the RFID antenna (41) facing the storage space 34, and obtain respective RFID performance indicators corresponding to setting each different first test reflector 10a on the central side of the RFID antenna 41 facing the storage space 34 through the RFID component 40.

[0126] Step S140: Determine the effective area of the first reflector 10 according to the respective RFID performance indicators obtained in Step S130.

[0127] The sample storage device 100 further includes a second reflector 20 made of a material capable of reflecting electromagnetic waves. The second reflector 20 is disposed within the first housing 31 and on the side of the RFID antenna 41 away from the center of the storage space 34. The first reflector 10, the RFID antenna 41, and the second reflector 20 are all disposed on the inner surface of a predetermined wall of the first housing 31. Exemplarily, the second reflector 20 can be directly disposed on the inner surface of the first sidewall 311, and the RFID antenna 41 can be directly disposed on the surface of the second reflector 20 facing away from the inner surface of the first sidewall 311. In one case, the first reflector 10 is directly fixed to the RFID antenna 41 through the bracket 60. In another case, the first reflector 10 is directly fixed to the surface of the second reflector 20 facing away from the inner surface of the first sidewall 311 through the bracket 60.

[0128] Figures 12 - 16 In the illustrated embodiment, in combination with Figure 28 and Figure 30 , the area of the second reflector 20 can be determined by the following method to optimize the RFID recognition performance of the sample storage device 100. The method for improving the RFID recognition performance of the sample storage device 100 includes Step S220, Step S230, and Step S240.

[0129] Step S220: Provide m second test reflectors 20a with different areas, where m≥1, and the second test reflectors 20a are made of materials capable of reflecting electromagnetic waves.

[0130] Step S230: Successively set the m second test reflectors 20a with different areas on the side of the RFID antenna 41 away from the center of the storage space 34, and obtain respective RFID performance indicators corresponding to setting each different second test reflector 20a on the side of the RFID antenna 41 away from the center of the storage space 34 through the RFID component 40.

[0131] Step S240: Determine the area of the second reflector 20 according to each RFID performance index obtained in step S230.

[0132] Figures 12 - 16 In the illustrated embodiment, in combination with Figure 28 and Figure 31 , the effective area of the first reflector 10 and the area of the second reflector 20 can also be determined by the following method in this embodiment. This method, which is also a method for improving the RFID recognition performance of the sample storage device 100, includes the following steps:

[0133] S310: Provide n first test reflectors 10a with different effective areas and m second test reflectors 20a with different areas. Number each of the first test reflectors 10a from 1 to n, and number each of the second test reflectors 20a from 1 to m, where n≥1, m≥1, and each of the first test reflectors 10a and each of the second test reflectors 20a are made of a material capable of reflecting electromagnetic waves;

[0134] S320: Let i = 1 and j = 1;

[0135] S330: Set one of the first test reflectors 10a, that is, the i-th first test reflector 10a, on the side of the RFID antenna 41 facing the center of the storage space 34, and set one of the second test reflectors 20a, that is, the j-th second test reflector 20a, on the side of the RFID antenna 41 away from the center of the storage space 34;

[0136] S340: Obtain the current RFID performance index through the RFID component 40;

[0137] S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350, otherwise execute step S360;

[0138] S360: Let i = 1 and j = j + 1. If j is not greater than m, repeat steps S330, S340, and S350, otherwise execute step S370;

[0139] S370: Determine the effective area of the first reflector 10 and the area of the second reflector 20 according to each RFID performance index obtained in the above steps.

[0140] Figures 17 - 27 In the illustrated embodiment, in combination with Figure 28 and Figure 29, the effective area of the first reflector 10 is determined by the following method to optimize the RFID recognition performance of the sample storage device 100. The method, which is also the method for improving the RFID recognition performance of the sample storage device 100, includes step S120, step S130, and step S140.

[0141] Step S120: Provide n first reflectors 10a with different effective areas, where n ≥ 1, and each first reflector 10a is made of a material capable of reflecting electromagnetic waves.

[0142] Step S130: Successively set the n first reflectors 10a with different effective areas on the central side of the RFID antenna 41 facing the storage space 34, and obtain the corresponding RFID performance indicators when each different first reflector 10a is set on the central side of the RFID antenna 41 facing the storage space 34 through the RFID component 40.

[0143] Step S140: Determine the effective area of the first reflector 10 according to the RFID performance indicators obtained in step S130.

[0144] Figures 17 - 27 In the illustrated embodiment, in combination with Figure 28 and Figure 30 , the area of the second reflector 20 can be determined by the following method to optimize the RFID recognition performance of the sample storage device 100. The method, which is also the method for improving the RFID recognition performance of the sample storage device 100, includes step S220, step S230, and step S240.

[0145] Step S220: Provide m second reflectors 20a with different areas, where m ≥ 1, and each second reflector 20a is made of a material capable of reflecting electromagnetic waves.

[0146] Step S230: Successively set the m second reflectors 20a with different areas on the side of the RFID antenna 41 away from the center of the storage space 34, and obtain the corresponding RFID performance indicators when each different second reflector 20a is set on the side of the RFID antenna 41 away from the center of the storage space 34 through the RFID component 40.

[0147] Step S240: Determine the area of the second reflector 20 according to the RFID performance indicators obtained in step S230.

[0148] Figures 17 - 27 In the illustrated embodiment, in combination with Figure 28 and Figure 31, the embodiment can also determine the effective area of the first reflector 10 and the area of the second reflector 20 through the following method, which is also the method for improving the RFID recognition performance of the sample storage device 100 and includes the following steps:

[0149] S310: Provide n first test reflectors 10a with different effective areas and m second test reflectors 20a with different areas. Number each of the first test reflectors 10a as 1 to n, and number each of the second test reflectors 20a as 1 to m. Here, n≥1, m≥1, and each of the first test reflectors 10a and each of the second test reflectors 20a are made of materials capable of reflecting electromagnetic waves;

[0150] S320: Let i = 1, j = 1;

[0151] S330: Set one of the first test reflectors 10a, that is, the i-th first test reflector 10a, on the side of the RFID antenna 41 facing the center of the storage space 34, and set one of the second test reflectors 20a, that is, the j-th second test reflector 20a, on the side of the RFID antenna 41 away from the center of the storage space 34;

[0152] S340: Obtain the current RFID performance index through the RFID component 40;

[0153] S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350, otherwise execute step S360;

[0154] S360: Let i = 1, j = j + 1. If j is not greater than m, repeat steps S330, S340, and S350, otherwise execute step S370;

[0155] S370: Determine the effective area of the first reflector 10 and the area of the second reflector 20 according to the various RFID performance indexes obtained in the above steps.

[0156] Based on this, in the embodiment of the present application, it is experimentally verified that the sample storage device 100 with the first reflector 10 and the second reflector 20 of appropriate sizes will improve the RFID performance compared with the sample storage device without the first reflector and the second reflector, and increase the possibility of the RFID tag 210 being read.

[0157] In step S240 of each of the above embodiments, there are various ways to determine the area of the second reflector 20 according to the obtained RFID performance indicators. In the first alternative embodiment, step S240 includes: setting the area of the second measured reflector 20a corresponding to the detected optimal RFID performance indicator as the area of the second reflector 20. In the second alternative embodiment, before step S220, the method further includes step S210 of obtaining the RFID reference performance indicator of the sample storage device 100 without the second measured reflector 20a being provided; wherein, step S240 includes: determining the area of the second reflector 20 according to the areas of the second measured reflectors 20a corresponding to the RFID performance indicators that are better than the RFID reference performance indicator. Exemplarily, setting the area of the second measured reflector 20a corresponding to the detected optimal RFID performance indicator as the area of the second reflector 20.

[0158] As Figure 32 , and in combination with Figure 28 , a method for improving the RFID recognition performance of the sample storage device 100 includes:

[0159] S510. Provide n first measured reflectors 10a with different effective areas, number each of the first measured reflectors from 1 to n, where n≥1, and each of the first measured reflectors 10a is made of a material capable of reflecting electromagnetic waves.

[0160] S520. Set i = 1.

[0161] S530. Set one of the first measured reflectors 10a, that is, the i-th first measured reflector 10a, on the side of the RFID antenna 41 facing the storage space 34.

[0162] S540. Obtain the current RFID performance indicator through the RFID component 40.

[0163] S550. Make i = i + 1. If i is not greater than n, repeat steps S530, S540, and S550; otherwise, that is, if i is greater than n, execute step S560.

[0164] S560. Determine the preferred area of the first reflector 10 according to the RFID performance indicators obtained in the above steps, and set the first reflector 10 with the preferred area on the predetermined wall 30a of the cover 50 or the box body 30.

[0165] S570. Provide m second measured reflectors 20a with different areas, numbered from 1 to m respectively, where m≥1, and each of the second measured reflectors 20a is made of a material capable of reflecting electromagnetic waves.

[0166] S580. Set j = 1.

[0167] S590. On one side of the RFID antenna 41 away from the storage space 34, one of the second test reflectors 20a, that is, the j-th second test reflector 20a, is provided.

[0168] S511. Obtain the current RFID performance indicators through the RFID component 40.

[0169] S512. Let j = j + 1. If j is not greater than m, repeat steps S590, S511, and S512. Otherwise, that is, if j is greater than m, execute step S513.

[0170] S513. Determine the preferred area of the second reflector 20 based on the RFID performance indicators obtained in the above steps, and set the second reflector 20 with the preferred area on the predetermined wall 30a of the cover 50 or the box body 30.

[0171] The experimental process is exemplarily described below.

[0172] In this experiment, two test chambers with different sizes were used for testing. Their models are B1 and B2 respectively. There is one B1 test chamber, numbered 1#, and three B2 test chambers, numbered 2#, 4#, and 5#. The structures of the B1 test chamber and the B2 test chambers are similar. As Figure 28 shown, they both include a box body 30 and a cover 50. For the specific descriptions of the box body 30 and the cover 50, reference can be made to the above embodiments, which will not be elaborated here. Combining Figures 5 - 8 and Figure 28 , multiple sample containers 200 such as test tube sleeves 200 can be accommodated in the storage space 34 of the box body 30. RFID tags 210 and test tubes 400 for accommodating samples are provided in each test tube sleeve 200. The RFID tag 210 is a common anti-metal tag with a size of 60 mm × 23 mm, and is vertically pasted on the inner side wall of the test tube sleeve 200. The test tube sleeve 200 is arranged in the box body 30 through a test tube rack 300, and accommodation positions for accommodating the test tube sleeve 200 are provided on the test tube rack 300. The RFID antenna 41 of the RFID component 40 is used to read the RFID tag 210 provided in the test tube sleeve 200. The RFID antenna 41 is a common square ceramic antenna with a size of 50 mm × 50 mm. Here, mm represents millimeter. Both the first test reflector 10a and the second test reflector 20a are copper foils with a thickness of 0.1 mm, and the interval between the first test reflector 10a and the RFID antenna 41 is 11 mm.

[0173] The differences between the two types of test chambers are as follows: The sizes of the first housings 31 of the B1 test chamber and the B2 test chamber are different. The size of the first housing 31 of the B1 test chamber is 152 mm (length) × 116 mm (width) × 105 mm (depth), and the size of the first housing 31 of the B2 test chamber is 137 mm (length) × 107 mm (width) × 114 mm (depth). The plastic test tube rack 300 of the B1 test chamber is provided with accommodation positions arranged in a 6×4 array. Therefore, 24 test tube sleeves 200 can be placed and taken out during each access process of the B1 test chamber. The plastic test tube rack 300 of the B2 test chamber is provided with accommodation positions arranged in a 5×4 array. Therefore, 20 test tube sleeves 200 can be placed and taken out during each access process of the B2 test chamber.

[0174] During the experimental processes of Experiments 1 to 3 below, the RFID parameters are set as shown in Table 1 below:

[0175] Table 1

[0176]

[0177]

[0178] Among them, db is the power unit in decibels. Among them, ms is the time unit in milliseconds.

[0179] Experiment 1:

[0180] Combined with the first structural embodiment of the sample storage device 100 and the related drawings, n first measured reflectors 10a with different effective areas (length × width) are successively arranged on the cover body 50, and the second measured reflector 20a is not arranged. Each of the first measured reflectors 10a is made of copper foil without holes.

[0181] In this experiment, a gap 12 is formed by spacing the edge of the first measured reflector 10a from the first opening 312 of the first housing 31. The experiment studies the influence of the first measured reflectors 10a of different sizes on the recognition accuracy rate and the average signal strength.

[0182] For the B1 test chamber, under each first measured reflector 10a of different sizes (length × width), 240 access tests are carried out on the test tube sleeve 200 provided with the RFID tag 210 and the sample. The test results are as shown in Table 2 below:

[0183] Table 2

[0184]

[0185] Among them, the recognition accuracy rate in this application is the number of times the test tube sleeve 200 is correctly recognized / the total number of access experiments. The average RFID signal strength in this application is the average of the RFID signal strengths of each test tube sleeve 200 recognized. The average RFID signal strength is simply referred to as the average signal strength. When the size of the first measured reflector 10a is 0mm × 0mm, it means there is no first measured reflector 10a.

[0186] Refer to Table 2 and as Figure 33 shown, the recognition accuracy rate of the B1 test chamber is as follows:

[0187] (1) When the sizes of the first measured reflectors 10a of the 1# test chamber are 80mm × 50mm, 90mm × 90mm, and 120mm × 90mm, the respective recognition accuracy rates are improved compared to the recognition accuracy rate (94.17%) corresponding to when there is no first measured reflector 10a in the 1# test chamber. When the size of the first measured reflector 10a of the 1# test chamber is 90mm × 90mm, the recognition accuracy rate is the highest, reaching 99.17%, which is significantly higher than the recognition accuracy rate (94.17%) corresponding to when there is no first measured reflector 10a in the 1# test chamber.

[0188] (2) When the size of the first measured reflector 10a of the 1# test chamber is 50mm × 20mm, the recognition accuracy rate is the lowest, only 85.42%, which is significantly lower than the recognition accuracy rate (94.17%) corresponding to when there is no first measured reflector 10a in the 1# test chamber.

[0189] Refer to Table 2 and as Figure 34 shown, the average signal strength of the B1 test chamber:

[0190] (1) When the size of the first measured reflector 10a of the 1# test chamber is between 50mm × 50mm (equivalent to the size of the RFID antenna 41) and 142mm × 108mm (the area is slightly smaller than the size of the first opening 312 of the first housing 31), the recognition accuracy rate has a significant improvement compared to the average signal strength (38.65) corresponding to when there is no first measured reflector 10a in the 1# test chamber; when the size of the first measured reflector 10a of the 1# test chamber is 70mm × 70mm, the average signal strength is the largest, reaching 53.15, which is significantly higher than the average signal strength (38.65) corresponding to when there is no first measured reflector 10a in the 1# test chamber.

[0191] (2) When the size of the first measured reflector 10a of the 1# test chamber is 142mm × 108mm, the average signal strength is the smallest, only 25.76, which is significantly lower than the average signal strength (38.65) corresponding to when there is no first measured reflector 10a in the 1# test chamber.

[0192] For each B2 test chamber, 100 access tests were conducted on the test tube sleeve 200 provided with the RFID tag 210 and the sample under each first test reflection member 10a of different sizes. The test results are shown in Table 3 below:

[0193] Table 3

[0194]

[0195]

[0196] Among them, when the size of the first test reflection member 10a is 0 mm × 0 mm, it means there is no first test reflection member 10a.

[0197] Referring to Table 3 and as Figure 35 shown, the recognition accuracy rate of the B2 test chamber:

[0198] (1) For each B2 test chamber, when the size of the first test reflection member 10a is between 50 mm × 50 mm (equivalent to the size of the RFID antenna 41) and 130 × 100 (the area is slightly smaller than the size of the first opening 312 of the first housing 31), the recognition accuracy rate has a significant improvement compared to the recognition accuracy rate corresponding to no first test reflection member 10a in each B2 test chamber.

[0199] (2) When the sizes of the first test reflection members 10a of the 2# test chamber are 90 mm × 60 mm and 110 mm × 80 mm, the recognition accuracy rates are the highest, both reaching 99.0%; when the sizes of the first test reflection members 10a of the 4# test chamber are 70 mm × 70 mm and 90 mm × 90 mm, the recognition accuracy rates are the highest, both reaching 98.0%; when the sizes of the first test reflection members 10a of the 5# test chamber are 70 mm × 70 mm, 90 mm × 60 mm, and 90 mm × 90 mm, the recognition accuracy rates are the highest, both reaching 98.0%.

[0200] (3) For each B2 test chamber, when the size of the first test reflection member 10a is less than 50 mm × 50 mm (equivalent to the size of the RFID antenna 41), the recognition accuracy rate does not have an obvious improvement compared to the recognition accuracy rate corresponding to no first test reflection member 10a in each B2 test chamber, and may even be slightly lower.

[0201] Referring to Table 3 and as Figure 36 shown, the average signal strength of the B2 test chamber:

[0202] (1) For each B2 test chamber, when the size of the first measured reflector 10a is between 50 mm × 50 mm (equivalent to the size of the RFID antenna 41) and 130 mm × 100 mm (the area is slightly smaller than the size of the first opening 312 of the first housing 31), the average signal strength has a significant increase relative to the average signal strength corresponding to each B2 test chamber without the first measured reflector 10a.

[0203] (2) When the size of the first measured reflector 10a in the 2# test chamber is 90 mm × 60 mm, the average signal strength is the largest, reaching 54.67; when the size of the first measured reflector 10a in the 4# test chamber is 70 mm × 70 mm, the average signal strength is the largest, reaching 54.55; when the size of the first measured reflector 10a in the 5# test chamber is 70 mm × 70 mm, the average signal strength is the largest, reaching 55.37.

[0204] (3) For each B2 test chamber, when the size of the first measured reflector 10a is less than 50 mm × 50 mm (equivalent to the size of the RFID antenna 41), the average signal strength is basically equivalent to, or even slightly lower than, the average signal strength corresponding to each B2 test chamber without the first measured reflector 10a.

[0205] It can be determined through Experiment 1 that setting a first reflector 10 with an appropriate size on the cover 50 of the sample storage device 100 can significantly improve the RFID recognition performance.

[0206] Experiment 2:

[0207] On the cover 50, m second measured reflectors 20a with different areas are successively set, and the first measured reflector 10a is not set. Each of the second measured reflectors 20a is made of copper foil, for example. This experiment verifies the influence of second measured reflectors 20a with different sizes on the RFID recognition performance.

[0208] For each B2 test chamber, under each second measured reflector 20a with a different size, 100 access tests are conducted on the test tube sleeve 200 provided with the RFID tag 210 and the sample. The test results are shown in Table 4 below:

[0209] Table 4

[0210]

[0211]

[0212] Among them, when the size of the second measured reflector 20a is 0 mm × 0 mm, it means that there is no second measured reflector 20a.

[0213] Referring to Table 4 and as Figure 37As shown, the recognition accuracy rate of the B2 test chamber:

[0214] (1) When the size of the second test reflector 20a of the 2# test chamber is 70mm×60mm, the recognition accuracy rate is the highest, reaching 95.0%. This recognition accuracy rate has a certain improvement compared to the recognition accuracy rate (89.0%) corresponding to the 2# test chamber without the second test reflector 20a.

[0215] (2) When the sizes of the second test reflectors 20a of the 4# test chamber are 70mm×60mm and 100mm×90mm, the recognition accuracy rates are the highest, both reaching 94.0%. These recognition accuracy rates have a certain improvement compared to the recognition accuracy rate (88.0%) corresponding to the 2# test chamber without the second test reflector 20a.

[0216] (3) When the size of the second test reflector 20a of the 5# test chamber is 100mm×90mm, the recognition accuracy rate is the highest, reaching 92.0%. This recognition accuracy rate has a certain improvement compared to the recognition accuracy rate (90.0%) corresponding to the 2# test chamber without the second test reflector 20a.

[0217] Refer to Table 4 and as Figure 38 shown, the average signal strength of the B2 test chamber:

[0218] (1) When the size of the second test reflector 20a of the 2# test chamber is 70mm×60mm, the average signal strength is the highest, reaching 32.29. This average signal strength has a certain improvement compared to the average signal strength (27.98) corresponding to the 2# test chamber without the second test reflector 20a.

[0219] (2) When the size of the second test reflector 20a of the 4# test chamber is 100mm×90mm, the average signal strength is the highest, reaching 32.40. This average signal strength has a certain improvement compared to the average signal strength (29.15) corresponding to the 2# test chamber without the second test reflector 20a.

[0220] (3) When the size of the second test reflector 20a of the 5# test chamber is 70mm×60mm, the average signal strength is the highest, reaching 32.59. This average signal strength has a certain improvement compared to the average signal strength (27.00) corresponding to the 2# test chamber without the second test reflector 20a.

[0221] It can be determined through Experiment 2 that setting a second test reflector 20a with a suitable size in each test chamber separately has a certain improvement in the RFID recognition performance compared to not setting a second test reflector 20a in each test chamber.

[0222] Experiment Three:

[0223] After determining the effective area of the first measured reflector 10a through Experiment One, m second measured reflectors 20a with different areas are successively arranged on the cover 50. Each of the first measured reflectors 10a and the second measured reflectors 20a is made of copper foil, for example.

[0224] For each B2 test chamber, on the basis of arranging the first measured reflector 10a with a size of 90mm×60mm, different-sized second measured reflectors 20a are further superimposed. Under each second measured reflector 20a with a different size, 100 access tests are carried out on the test tube sleeve 200 provided with the RFID tag 210 and the sample. The test results are shown in Table 5 below:

[0225] Table 5

[0226]

[0227] Among them, when the size of the second measured reflector 20a is 0mm×0mm, it means that there is no second measured reflector 20a.

[0228] Referring to Table 5 and as Figure 39 shown, the recognition accuracy rate of the B2 test chamber:

[0229] (1) For each test chamber, when the size of the second measured reflector 20a is relatively large, the recognition accuracy rate reaches 100%, showing a further improvement compared with the case of not setting the second measured reflector 20a.

[0230] (2) For each test chamber, when the size of the second measured reflector 20a is relatively small, the improvement of the recognition accuracy rate is not obvious.

[0231] Referring to Table 5 and as Figure 40 shown, the average signal strength of the B2 test chamber:

[0232] (1) For each test chamber, when the size of the second measured reflector 20a is 160mm×150mm (the second measured reflector 20a completely covers the top surface of the cover 50), the average signal strength is the highest.

[0233] (2) For each test chamber, when the size of the second measured reflector 20a is relatively small, the improvement of the average signal strength is not obvious.

[0234] It can be determined through Experiment Three that on the basis of setting the first measured reflector 10a, by further setting the second measured reflector 20a with a relatively large size, the RFID recognition performance of the sample storage device 100 can be further improved.

[0235] Experiment Four:

[0236] The RFID power in this experiment was set to 20 dB, and the remaining RFID parameters were the same as those in Experiments 1 to 3. Combining the second structural embodiment of the sample storage device 100 and the related drawings, a first test reflection member 10a with a hole of a different size at the center position was successively set on the cover 50, and the second test reflection member 20a was not set. The edge of each different first test reflection member 10a covered the opening 32 of the first housing 31, and there was no gap between them.

[0237] In this experiment, an opening of a different size was provided at the center position of each first test reflection member 10a to study the influence of the openings of different sizes on the recognition accuracy rate and the average signal strength on the first test reflection member 10a.

[0238] Table 6

[0239]

[0240] Among them, the recognition accuracy rate in this application is the number of times the test tube sleeve 200 is correctly recognized / the total number of access experiments, and the average RFID signal strength in this application is the average value of the RFID signal strengths of each test tube sleeve 200 recognized. Among them, the average RFID signal strength is simply referred to as the average signal strength.

[0241] Referring to Table 6 and as Figure 41 shown, the recognition accuracy rate of the 2# test chamber is as follows:

[0242] (1) When the diameter of the opening provided on the first test reflection member 10a of the 2# test chamber is 20 mm to 60 mm, the recognition accuracy rate is improved compared to the recognition accuracy rate (82.0%) corresponding to the case where there is no first test reflection member 10a in the 2# test chamber; when the opening diameter of the first test reflection member 10a of the 2# test chamber is 60 mm, the recognition accuracy rate is the highest, reaching 90.0%, which is significantly higher than the recognition accuracy rate when there is no first test reflection member in the 2# test chamber.

[0243] Referring to Table 6 and as Figure 42 shown, the average signal strength of the 2# test chamber:

[0244] (1) When the size of the first test reflection member 10a of the 2# test chamber is 20 mm to 60 mm, the recognition accuracy rate is improved compared to the average signal strength (23.95) corresponding to the case where there is no first test reflection member 10a in the 2# test chamber; when the opening diameter of the first test reflection member 10a of the 2# test chamber is 20 mm, the average signal strength is the largest, reaching 29.36, which is significantly higher than the average signal strength corresponding to the case where there is no first test reflection member 10a in the 2# test chamber.

[0245] Based on the above various experiments, it can be determined that:

[0246] (1) A first test reflection member 10a without openings and having an appropriate size is separately provided. The RFID recognition performance of the sample storage device 100 is significantly improved compared to not providing a reflection member.

[0247] (2) A second test reflection member 20a is separately provided. The RFID recognition performance of the sample storage device may increase or decrease compared to not providing a reflection member, depending on different test conditions.

[0248] (3) On the basis of providing a first test reflection member 10a with an appropriate size, a second test reflection member 20a with a relatively large area is further provided. The RFID recognition performance of the sample storage device 100 can be further improved.

[0249] (4) A first test reflection member 10a with an appropriate size opening is separately provided. The RFID recognition performance of the sample storage device 100 has a certain improvement compared to not providing a reflection member.

[0250] It can be understood that those skilled in the art can determine through a limited number of experiments that setting n first test reflection members 10a without openings and having different effective areas one by one on a predetermined wall of the first housing 31, such as the first side wall 311, or on at least one of the partition 37 and the second side wall 331 of the second housing 33, is similar to the experimental result of Experiment 1. Setting m second test reflection members 20a without openings and having different effective areas one by one on a predetermined wall of the first housing 31, such as the first side wall 311, or on at least one of the partition 37 and the second side wall 331 of the second housing 33, is similar to the result of Experiment 2. Setting n first test reflection members 10a without openings and having different effective areas and m second test reflection members 20a without openings and having different effective areas one by one on a predetermined wall of the first housing 31, such as the first side wall 311, or on at least one of the partition 37 and the second side wall 331 of the second housing 33, is similar to the result of Experiment 3. Setting n first test reflection members 10a with openings and having different effective areas one by one on a predetermined wall of the first housing 31, such as the first side wall 311, or on at least one of the partition 37 and the second side wall 331 of the second housing 33, is similar to the experimental result of Experiment 4.

[0251] Wherein, a text label 220 can also be provided on the outer side wall of the sample sleeve 200.

[0252] The above has introduced in detail the sample storage device provided by the embodiments of the present application and the method for improving the RFID recognition performance of the sample storage device. Specific examples are used in this article to elaborate on the principles and implementation manners of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A sample preservation device, characterized in that, Comprising: A box body (30), a cover body (50), an RFID component (40), and a first reflector (10); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample provided with an RFID tag (210) is provided inside the first housing (31). An opening (32) for communicating the accommodation space (34) with the outside is further provided on the first housing (31); The cover body (50) can be covered on the opening (32); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed on the cover body (50), and the emitting surface of the RFID antenna (41) faces the accommodation space (34). The RFID reader (42) is configured to read the information of the RFID tag (210) in the accommodation space (34) through the RFID antenna (41); The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed on the cover body (50) and is located on the side of the RFID antenna (41) facing the accommodation space (34). A gap is formed between the first reflector (10) and the RFID antenna (41). The effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located or the effective area of the first reflector (10) is smaller than the area of the cross-section (35b) of the position of the internal space of the first housing (31) where the opening (32) is located; The effective area of the first reflector (10) is determined by the following method to optimize the RFID recognition performance of the sample storage device (100): S120. Provide n first test reflectors (10a) with different effective areas, where n≥1, and each of the first test reflectors (10a) is made of a material capable of reflecting electromagnetic waves; S130. Sequentially dispose the n first test reflectors (10a) with different effective areas on the side of the RFID antenna (41) facing the accommodation space (34), and obtain respective RFID performance indicators corresponding to when each of the first test reflectors (10a) with different effective areas is disposed on the side of the RFID antenna (41) facing the accommodation space (34) through the RFID component (40); S140. Determine the effective area of the first reflector (10) according to the respective RFID performance indicators obtained in step S130.

2. The sample storage device according to claim 1, characterized in that, A gap (12) is formed between the edge of the first reflector (10) and the edge of the opening (32); and / or, The first reflector (10) is provided with an opening (13) penetrating through both sides of the first reflector (10).

3. The sample storage device according to claim 1 or 2, characterized in that, It further includes a second reflector (20) made of a material capable of reflecting electromagnetic waves, and the second reflector (20) is disposed on the cover body (50) and on a side of the RFID antenna (51) away from the storage space (34); The area of the second reflector (10) is determined by the following method to optimize the RFID identification performance of the sample storage device (100): S220. Provide m second reflectors to be measured (20a) with different areas, where m≥1, and each of the second reflectors to be measured (20a) is made of a material capable of reflecting electromagnetic waves; S230. Sequentially dispose the m second reflectors to be measured (20a) with different areas on a side of the RFID antenna (41) away from the storage space (34), and obtain respective RFID performance indicators corresponding to when each different second reflector to be measured (20a) is disposed on the side of the RFID antenna (41) away from the storage space (34) through the RFID component (40); S240. Determine the area of the second reflector (20) according to the respective RFID performance indicators obtained in the step S230.

4. The sample preservation device according to claim 1 or 2, characterized in that, The box body (30) further includes a second housing (33); The second housing (33) is sleeved on the outer side of the first housing (31), and an interval space (36) is formed between the outer side of the first housing (31) and the inner side of the second housing (33).

5. A sample preservation device, characterized in that, Comprising: A box body (30), a cover body (50), an RFID component (40), a first reflector (10), and a second reflector (20); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. A storage space (34) for placing a sample provided with an RFID tag (210) is arranged inside the first housing (31), and an opening (32) for communicating the storage space (34) with the outside is further arranged on the first housing (31); The cover body (50) can be covered on the opening (32); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed on the cover body (50), and the emitting surface of the RFID antenna (41) faces the storage space (34). The RFID reader (42) is used to read the information of the RFID tag (210) in the storage space (34) through the RFID antenna (41); The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed on the cover body (50) and is located on the side of the RFID antenna (41) facing the storage space (34). A gap is formed between the first reflector (10) and the RFID antenna (41). The effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located or the effective area of the first reflector (10) is smaller than the area of the cross-section (35b) of the position of the internal space of the first housing (31) where the opening (32) is located; The second reflector (20) is made of a material capable of reflecting electromagnetic waves; the second reflector (20) is disposed on the cover body (50) and is located on the side of the RFID antenna (41) away from the storage space (34); The effective area of the first reflector (10) and the area of the second reflector (20) are determined by the following method to optimize the RFID identification performance of the sample storage device (100): S310: Provide n first test reflectors (10a) with different effective areas and m second test reflectors (20a) with different areas. Number each of the first test reflectors (10a) from 1 to n, and number each of the second test reflectors (20a) from 1 to m. Here, n≥1, m≥1. Each of the first test reflectors (10a) and each of the second test reflectors (20a) are made of a material capable of reflecting electromagnetic waves; S320: Let i = 1, j = 1; S330: Dispose one of the first test reflectors (10a), that is, the i-th first test reflector (10a), on the side of the RFID antenna (41) facing the storage space (34), and dispose one of the second test reflectors (20a), that is, the j-th second test reflector (20a), on the side of the RFID antenna (41) away from the storage space (34); S340: Obtain the current RFID performance index through the RFID component (40); S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350, otherwise execute step S360; S360: Let i = 1, j = j + 1. If j is not greater than m, repeat steps S330, S340, and S350, otherwise execute step S370; S370: Determine the effective area of the first reflector (10) and the area of the second reflector (20) according to the various RFID performance indexes obtained in the above steps.

6. A sample preservation device, characterized in that, Including: A box body (30), a cover body (50), an RFID component (40), and a first reflector (10); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample provided with an RFID tag (210) is provided inside the first housing (31). An opening (32) for communicating the accommodation space (34) with the outside is further provided on the first housing (31). The cover body (50) can be covered on the opening (32); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the opening (32), the baffle (53) completely covers the opening (32). The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is arranged inside the first housing (31), and the emitting surface of the RFID antenna (41) faces the center of the accommodation space (34). The RFID reader (42) is used to read the information of the RFID tag (210) in the accommodation space (34) through the RFID antenna (41). The first reflector (10) is arranged inside the first housing (31) and is located on the side of the RFID antenna (41) facing the center of the accommodation space (34). A gap is formed between the first reflector (10) and the RFID antenna (41). The effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located. The effective area of the first reflector (10) is determined by the following method to improve the RFID recognition performance of the sample storage device (100): S120. Provide n first test reflectors (10a) with different effective areas, where n≥1, and the first test reflectors (10a) are made of a material capable of reflecting electromagnetic waves. S130. Successively arrange the n first test reflectors (10a) with different effective areas on the side of the RFID antenna (41) facing the center of the accommodation space (34), and obtain respective RFID performance indicators corresponding to when each different first test reflector (10a) is arranged on the side of the RFID antenna (41) facing the center of the accommodation space (34) through the RFID component (40). S140. Determine the effective area of the first reflector (10) according to the respective RFID performance indicators obtained in step S130.

7. The sample storage device according to claim 6, wherein, A gap (12) is formed between the edge of the first reflector (10) and the inner wall of the first housing (31); and / or The first reflector (10) is provided with an opening (13) penetrating through both sides of the first reflector (10).

8. The sample storage device according to claim 6 or 7, characterized in that, It further includes a second reflector (20) made of a material capable of reflecting electromagnetic waves. The second reflector (20) is disposed within the first housing (31) and on the central side of the RFID antenna (41) away from the storage space (34). The area of the second reflector (10) is determined by the following method to optimize the RFID identification performance of the sample storage device (100): S220: Provide m second reflectors to be measured (20a) with different areas, where m≥1, and the second reflectors to be measured (20a) are made of a material capable of reflecting electromagnetic waves; S230: Sequentially dispose the m second reflectors to be measured (20a) with different areas on the central side of the RFID antenna (41) away from the storage space (34), and obtain respective RFID performance indicators corresponding to when each different second reflector to be measured (20a) is disposed on the central side of the RFID antenna (41) away from the storage space (34) through the RFID component (40); S240: Determine the area of the second reflector (20) based on the respective RFID performance indicators obtained in step S230.

9. The sample storage device according to claim 6 or 7, characterized in that, The box body (30) further includes a second housing (33); The second housing (33) is sleeved on the outer side of the first housing (31), and a spaced space (36) is formed between the outer side of the first housing (31) and the inner side of the second housing (33).

10. A sample preservation device, characterized in that, Comprising: A box body (30), a cover body (50), an RFID component (40), a first reflector (10), and a second reflector (20); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. A storage space (34) for placing a sample provided with an RFID tag (210) is provided within the first housing (31), and an opening (32) for communicating the storage space (34) with the outside is further provided on the first housing (31); The cover body (50) can be covered on the opening (32); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the opening (32), the baffle (53) completely covers the opening (32); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed within the first housing (31), and the emitting surface of the RFID antenna (41) faces the center of the storage space (34). The RFID reader (42) is used to read the information of the RFID tag (210) within the storage space (34) through the RFID antenna (41); The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed within the first housing (31) and is located on the central side of the RFID antenna (41) facing the storage space (34). A gap is formed between the first reflector (10) and the RFID antenna (41), and the effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located; The second reflector (20) is made of a material capable of reflecting electromagnetic waves; the second reflector (20) is disposed within the first housing (31) and is located on the central side of the RFID antenna (41) away from the storage space (34); The effective area of the first reflector (10) and the area of the second reflector (20) are determined by the following method to optimize the RFID identification performance of the sample storage device (100): S310: Provide n first test reflectors (10a) with different effective areas and m second test reflectors (20a) with different areas. Number each of the first test reflectors (10a) from 1 to n, and number each of the second test reflectors (20a) from 1 to m. Here, n≥1, m≥1, and each of the first test reflectors (10a) and each of the second test reflectors (20a) are made of a material capable of reflecting electromagnetic waves; S320: Let i = 1 and j = 1; S330: Dispose one of the first test reflectors (10a), i.e., the i-th first test reflector (10a), on the central side of the RFID antenna (41) facing the storage space (34), and dispose one of the second test reflectors (20a), i.e., the j-th second test reflector (20a), on the central side of the RFID antenna (41) away from the storage space (34); S340: Obtain the current RFID performance index through the RFID component (40); S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350; otherwise, execute step S360; S360: Let i = 1 and j = j + 1. If j is not greater than m, repeat steps S330, S340, and S350; otherwise, execute step S370; S370: Determine the effective area of the first reflector (10) and the area of the second reflector (20) based on the various RFID performance indices obtained in the above steps.

11. A sample preservation device, characterized in that, Comprising: A box body (30), a cover body (50), an RFID component (40), and a first reflector (10); The housing (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample container (200) containing an RFID tag (210) is provided inside the first housing (31). An article opening (32a) and a signal opening (32b) for communicating the accommodation space (34) with the outside are further provided on the first housing (31). The cover (50) can be covered on the article opening (32a); the cover (50) is made of a material capable of reflecting electromagnetic waves, or the cover (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover (50) covers the article opening (32a), the baffle (53) completely covers the article opening (32a). The RFID assembly (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed inside or outside the signal opening (32b), or disposed at the signal opening (32b), and the emitting surface of the RFID antenna (41) faces the center of the accommodation space (34). The RFID reader (42) is configured to read information of the RFID tag (210) in the accommodation space (34) through the RFID antenna (41). The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed on the side of the RFID antenna (41) facing the center of the accommodation space (34), and a gap is formed between the first reflector (10) and the RFID antenna (41). The effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located, or the effective area of the first reflector (10) is smaller than the area of the cross-section (35b) of the position of the internal space of the first housing (31) where the signal opening (32b) is located. The effective area of the first reflector (10) is determined by the following method to optimize the RFID identification performance of the sample storage device (100): S120. Provide n first measured reflectors (10a) with different effective areas, where n≥1, and each of the first measured reflectors (10a) is made of a material capable of reflecting electromagnetic waves. S130. Sequentially dispose the n first measured reflectors (10a) with different effective areas on the side of the RFID antenna (41) facing the center of the accommodation space (34), and obtain respective RFID performance indicators corresponding to when each different first measured reflector (10a) is disposed on the side of the RFID antenna (41) facing the center of the accommodation space (34) through the RFID assembly (40). S140. Determine the effective area of the first reflector (10) according to the respective RFID performance indicators obtained in step S130.

12. The sample storage device according to claim 11, characterized in that, A gap (12) is formed between the edge of the first reflector (10) and the edge of the signal opening (32b); and / or, The first reflector (10) is provided with an opening (13) penetrating through both sides of the first reflector (10).

13. The sample preservation device according to claim 11 or 12, characterized in that, It further includes a second reflector (20) made of a material capable of reflecting electromagnetic waves, and the second reflector (20) is arranged on the central side of the RFID antenna (41) away from the storage space (34); The area of the second reflector (10) is determined by the following method to optimize the RFID identification performance of the sample storage device (100): S220. Provide m second reflectors to be measured (20a) with different areas, where m≥1, and each of the second reflectors to be measured (20a) is made of a material capable of reflecting electromagnetic waves; S230. Sequentially arrange the m second reflectors to be measured (20a) with different areas on the central side of the RFID antenna (41) away from the storage space (34), and obtain respective RFID performance indicators corresponding to when each different second reflector to be measured (20a) is arranged on the central side of the RFID antenna (41) away from the storage space (34) through the RFID component (40); S240. Determine the area of the second reflector (20) according to the respective RFID performance indicators obtained in the step S230.

14. The sample preservation device according to claim 11 or 12, characterized in that, The signal opening (32b) is covered with a partition (37) made of a material capable of transmitting electromagnetic waves.

15. The sample storage device according to claim 11 or 12, characterized in that, The box body (30) further includes a second housing (33); The second housing (33) is sleeved on the outer side of the first housing (31), and an interval space (36) is formed between the outer side of the first housing (31) and the inner side of the second housing (33); the first reflector (10) and the RFID antenna (41) are located inside the second housing (33).

16. A sample preservation device, characterized in that, Including: A box body (30), a cover body (50), an RFID component (40), a first reflector (10), and a second reflector (20); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves, and a storage space (34) for placing a sample provided with an RFID tag (210) is arranged inside the first housing (31). The first housing (31) is further provided with an article opening (32a) and a signal opening (32b) that communicate the storage space (34) with the outside; The cover body (50) can be covered on the article opening (32a); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the article opening (32a), the baffle (53) completely covers the article opening (32a); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed inside or outside the signal opening (32b), or is disposed at the signal opening (32b), and the emitting surface of the RFID antenna (41) faces the center of the storage space (34). The RFID reader (42) is configured to read information of an RFID tag (210) in the storage space (34) through the RFID antenna (41). The first reflector (10) is made of a material capable of reflecting electromagnetic waves. The first reflector (10) is disposed on a side of the RFID antenna (41) facing the center of the storage space (34), and a gap is formed between the first reflector (10) and the RFID antenna (41). A gap is formed between the edge of the first reflector (10) and the edge of the signal opening (32b). The effective area of the first reflector (10) is smaller than the area of a cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located, or the effective area of the first reflector (10) is smaller than the area of a cross-section (35b) of the position of the internal space of the first housing (31) where the signal opening (32b) is located. The second reflector (20) is made of a material capable of reflecting electromagnetic waves. The second reflector (20) is disposed on a side of the RFID antenna (41) away from the center of the storage space (34). The effective area of the first reflector (10) and the area of the second reflector (20) are determined by the following method to improve the RFID identification performance of the sample storage device (100). S310: Provide n first measured reflectors (10a) with different effective areas and m second measured reflectors (20a) with different areas. Number each of the first measured reflectors (10a) from 1 to n, and number each of the second measured reflectors (20a) from 1 to m, where n≥1, m≥1. Each of the first measured reflectors (10a) and each of the second measured reflectors (20a) are made of a material capable of reflecting electromagnetic waves. S320: Let i = 1 and j = 1. S330: Dispose one of the first measured reflectors (10a), that is, the i-th first measured reflector (10a), on a side of the RFID antenna (41) facing the center of the storage space (34), and dispose one of the second measured reflectors (20a), that is, the j-th second measured reflector (20a), on a side of the RFID antenna (41) away from the center of the storage space (34). S340: Obtain the current RFID performance index through the RFID component (40). S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350; otherwise, execute step S360. S360: Set \(i = 1\) and \(j=j + 1\). If \(j\) is not greater than \(m\), repeat steps S330, S340, and S350; otherwise, execute step S370. S370: Determine the effective area of the first reflector (10) and the area of the second reflector (20) based on the respective RFID performance metrics obtained in the above steps.

17. A method for improving the RFID recognition performance of a sample preservation device, characterized in that, The sample storage device (100) includes: a box body (30), a cover body (50), an RFID component (40), and a first reflector (10). The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing samples provided with RFID tags (210) is provided inside the first housing (31). An opening (32) that communicates the accommodation space (34) with the outside is further provided on the first housing (31). The cover body (50) can be covered on the opening (32). The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is provided on the cover body (50), and the emitting surface of the RFID antenna (41) faces the accommodation space (34). The RFID reader (42) is configured to read the information of the RFID tags (210) in the accommodation space (34) through the RFID antenna (41). The first reflector (10) is made of a material capable of reflecting electromagnetic waves. The first reflector (10) is provided on the cover body (50) and is located on the side of the RFID antenna (41) facing the accommodation space (34). A gap is formed between the first reflector (10) and the RFID antenna (41). The effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located or the effective area of the first reflector (10) is smaller than the area of the cross-section (35b) of the position of the internal space of the first housing (31) where the opening (32) is located. The method includes: S120: Provide \(n\) first test reflectors (10a) with different effective areas, where \(n\geq1\), and each of the first test reflectors (10a) is made of a material capable of reflecting electromagnetic waves. S130: Sequentially dispose the \(n\) first test reflectors (10a) with different effective areas on the side of the RFID antenna (41) facing the accommodation space (34), and obtain respective RFID performance metrics corresponding to the disposition of each of the first test reflectors (10a) with different effective areas on the side of the RFID antenna (41) facing the accommodation space (34) through the RFID component (40). S140: Determine the effective area of the first reflector (10) based on the respective RFID performance metrics obtained in step S130.

18. The method for improving the RFID identification performance of the sample storage device according to claim 17, characterized in that, Before S120, the method further includes: S110, obtaining the RFID reference performance index when the first measured reflector (10a) is not provided in the sample storage device (100). S140 includes: determining the effective area of the first reflector (10) according to the effective areas of the first measured reflectors (10a) corresponding to the RFID performance indexes that are better than the RFID reference performance index.

19. The method for improving the RFID identification performance of the sample storage device according to claim 17, characterized in that, The step S140 includes: setting the effective area of the first measured reflector (10a) corresponding to the detected optimal RFID performance index as the effective area of the first reflector (10).

20. The method for improving the RFID recognition performance of the sample storage device according to claim 17, characterized in that, The sample storage device (100) further includes a second reflector (20) made of a material capable of reflecting electromagnetic waves. The second reflector (20) is disposed on the cover body (50) and on a side of the RFID antenna (51) away from the storage space (34). The method further includes: S220, providing m second measured reflectors (20a) with different areas, where m≥1, and each of the second measured reflectors (20a) is made of a material capable of reflecting electromagnetic waves; S230, sequentially disposing the m second measured reflectors (20a) with different areas on a side of the RFID antenna (41) away from the storage space (34), and obtaining, by the RFID component (40), the respective RFID performance indexes corresponding to the respective different second measured reflectors (20a) disposed on the side of the RFID antenna (41) away from the storage space (34); S240, determining the area of the second reflector (20) according to the respective RFID performance indexes obtained in the step S230.

21. A method for improving the RFID recognition performance of a sample preservation device, characterized in that, The sample storage device (100) includes: a box body (30), a cover body (50), an RFID component (40), a first reflector (10), and a second reflector (20); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample provided with an RFID tag (210) is provided in the first housing (31). An opening (32) for communicating the accommodation space (34) with the outside is further provided on the first housing (31); The cover body (50) can be covered on the opening (32); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed on the cover body (50), and the emission surface of the RFID antenna (41) faces the accommodation space (34). The RFID reader (42) is configured to read information of the RFID tag (210) in the accommodation space (34) through the RFID antenna (41). The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed on the cover body (50) and on a side of the RFID antenna (41) facing the storage space (34), and a gap is formed between the first reflector (10) and the RFID antenna (41), and the effective area of the first reflector (10) is smaller than the area of a cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located or the effective area of the first reflector (10) is smaller than the area of a cross-section (35b) of the position of the internal space of the first housing (31) where the opening (32) is located; The second reflector (20) is made of a material capable of reflecting electromagnetic waves; the second reflector (20) is disposed on the cover body (50) and on a side of the RFID antenna (41) away from the storage space (34); The method includes: S310: Provide n first measured reflectors (10a) with different effective areas and m second measured reflectors (20a) with different areas, number each of the first measured reflectors (10a) from 1 to n respectively, and number each of the second measured reflectors (20a) from 1 to m respectively, where n≥1, m≥1, and each of the first measured reflectors (10a) and each of the second measured reflectors (20a) are made of a material capable of reflecting electromagnetic waves; S320: Let i = 1 and j = 1; S330: Dispose one of the first measured reflectors (10a), that is, the i-th first measured reflector (10a), on a side of the RFID antenna (41) facing the storage space (34), and dispose one of the second measured reflectors (20a), that is, the j-th second measured reflector (20a), on a side of the RFID antenna (41) away from the storage space (34); S340: Obtain the current RFID performance index through the RFID component (40); S350: Let i = i + 1, if i is not greater than n, then repeat steps S330, S340, and S350, otherwise execute step S360; S360: Let i = 1 and j = j + 1, if j is not greater than m, then repeat steps S330, S340, and S350, otherwise execute step S370; S370: Determine the effective area of the first reflector (10) and the area of the second reflector (20) according to the respective RFID performance indexes obtained in the above steps.

22. The method for improving the RFID identification performance of the sample storage device according to claim 21, wherein, Before S120, the method further includes: S110, obtaining the RFID reference performance index when the sample storage device (100) does not have the first measured reflector (10a) and the second measured reflector (20a); S140 includes: determining the effective area of the first reflector (10) and the area of the second measured reflector (20a) according to the effective area of the first measured reflector (10a) corresponding to each RFID performance index superior to the RFID reference performance index and the second measured reflector (20a).

23. The method for improving the RFID identification performance of the sample storage device according to claim 21, wherein, The step S140 includes: setting the effective area of the first measured reflector (10a) and the area of the second measured reflector (20a) corresponding to the detected optimal RFID performance index as the effective area of the first reflector (10) and the area of the second reflector (20).

24. A method for improving the RFID recognition performance of a sample preservation device, characterized in that, The sample storage device (100) includes: a box body (30), a cover body (50), an RFID component (40), and a first reflector (10); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample provided with an RFID tag (210) is provided inside the first housing (31), and an opening (32) for communicating the accommodation space (34) with the outside is further provided on the first housing (31); The cover body (50) can be covered on the opening (32); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the opening (32), the baffle (53) completely covers the opening (32); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed inside the first housing (31), and the emission surface of the RFID antenna (41) faces the center of the accommodation space (34). The RFID reader (42) is configured to read the information of the RFID tag (210) in the accommodation space (34) through the RFID antenna (41); The first reflector (10) is disposed inside the first housing (31) and on the side of the RFID antenna (41) facing the center of the accommodation space (34). A gap is formed between the first reflector (10) and the RFID antenna (41), and the effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located; The method includes: S120, providing n first measured reflectors (10a) with different effective areas, where n≥1, and the first measured reflectors (10a) are made of a material capable of reflecting electromagnetic waves; S130. Set each of the n first measured reflectors (10a) with different effective areas on the central side of the RFID antenna (41) facing the storage space (34) one by one, and obtain respective RFID performance indicators corresponding to setting each of the different first measured reflectors (10a) on the central side of the RFID antenna (41) facing the storage space (34) through the RFID component (40); S140. Determine the effective area of the first reflector (10) based on the respective RFID performance indicators obtained in step S130.

25. The method for improving the RFID recognition performance of the sample storage device according to claim 24, wherein Before S120, the method further includes: S110. Obtain the RFID reference performance indicators when the sample storage device (100) does not have the first measured reflector (10a) set thereon. S140 includes: Determine the effective area of the first reflector (10) based on the effective areas of the first measured reflectors (10a) corresponding to the RFID performance indicators that are better than the RFID reference performance indicators.

26. The method for improving the RFID recognition performance of the sample preservation device according to claim 24, wherein Step S140 includes: Set the effective area of the first measured reflector (10a) corresponding to the detected optimal RFID performance indicator as the effective area of the first reflector (10).

27. The method for improving the RFID identification performance of the sample preservation device according to claim 24, characterized in that, The sample storage device (100) further includes a second reflector (20) made of a material capable of reflecting electromagnetic waves. The second reflector (20) is disposed inside the first housing (31) and on the side of the RFID antenna (41) away from the center of the storage space (34); The method further includes: S220. Provide m second measured reflectors (20a) with different areas, where m ≥ 1, and the second measured reflectors (20a) are made of a material capable of reflecting electromagnetic waves; S230. Set each of the m second measured reflectors (20a) with different areas on the side of the RFID antenna (41) away from the center of the storage space (34) one by one, and obtain respective RFID performance indicators corresponding to setting each of the different second measured reflectors (20a) on the side of the RFID antenna (41) away from the center of the storage space (34) through the RFID component (40); S240. Determine the area of the second reflector (20) based on the respective RFID performance indicators obtained in step S230.

28. A method for improving the RFID recognition performance of a sample preservation device, characterized in that, The sample storage device (100) includes: a box body (30), a cover body (50), an RFID component (40), a first reflector (10), and a second reflector (20); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample provided with an RFID tag (210) is provided inside the first housing (31), and an opening (32) for communicating the accommodation space (34) with the outside is further provided on the first housing (31); The cover body (50) can be covered on the opening (32); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the opening (32), the baffle (53) completely covers the opening (32). The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed in the first housing (31), and the emitting surface of the RFID antenna (41) faces the center of the storage space (34). The RFID reader (42) is configured to read information of the RFID tag (210) in the storage space (34) through the RFID antenna (41). The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed in the first housing (31) and is located on the side of the RFID antenna (41) facing the center of the storage space (34). An interval is formed between the first reflector (10) and the RFID antenna (41), and the effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located. The second reflector (20) is made of a material capable of reflecting electromagnetic waves; the second reflector (20) is disposed in the first housing (31) and is located on the side of the RFID antenna (41) away from the center of the storage space (34). The method includes: S310: Provide n first test reflectors (10a) with different effective areas and m second test reflectors (20a) with different areas. Number each of the first test reflectors (10a) from 1 to n, and number each of the second test reflectors (20a) from 1 to m. Here, n≥1, m≥1, and each of the first test reflectors (10a) and each of the second test reflectors (20a) are made of a material capable of reflecting electromagnetic waves. S320: Let i = 1 and j = 1. S330: Dispose one of the first test reflectors (10a), that is, the i-th first test reflector (10a), on the side of the RFID antenna (41) facing the center of the storage space (34), and dispose one of the second test reflectors (20a), that is, the j-th second test reflector (20a), on the side of the RFID antenna (41) away from the center of the storage space (34). S340: Obtain the current RFID performance index through the RFID component (40). S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350; otherwise, execute step S360. S360: Set \(i = 1\) and \(j=j + 1\). If \(j\) is not greater than \(m\), repeat steps S330, S340, and S350; otherwise, execute step S370. S370: Determine the effective area of the first reflector (10) and the area of the second reflector (20) based on the various RFID performance metrics obtained in the above steps.

29. The method for improving the RFID identification performance of the sample storage device according to claim 28, characterized in that, Before S120, the method further includes: S110, obtaining the RFID reference performance metrics when the sample storage device (100) does not have the first measured reflector (10a) and the second measured reflector (20a). S140 includes: determining the effective area of the first reflector (10) and the area of the second measured reflector (20a) based on the effective areas of the first measured reflector (10a) and the second measured reflector (20a) corresponding to the RFID performance metrics that are better than the RFID reference performance metrics.

30. The method for improving the RFID identification performance of the sample preservation device according to claim 28, wherein Step S140 includes: setting the effective areas of the first measured reflector (10a) and the second measured reflector (20a) corresponding to the detected optimal RFID performance metrics as the effective area of the first reflector (10) and the area of the second reflector (20).

31. A method for improving the RFID recognition performance of a sample preservation device, characterized in that, The sample storage device (100) includes: a box body (30), a cover body (50), an RFID component (40), and a first reflector (10). The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. An accommodation space (34) for placing a sample container (200) containing an RFID tag (210) is provided inside the first housing (31). An article opening (32a) and a signal opening (32b) for communicating the accommodation space (34) with the outside are further provided on the first housing (31). The cover body (50) can be covered on the article opening (32a); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the article opening (32a), the baffle (53) completely covers the article opening (32a). The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is disposed inside or outside the signal opening (32b), or is disposed at the signal opening (32b), and the emitting surface of the RFID antenna (41) faces the center of the accommodation space (34). The RFID reader (42) is used to read the information of the RFID tag (210) in the accommodation space (34) through the RFID antenna (41). The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is disposed on the central side of the RFID antenna (41) facing the storage space (34), and a gap is formed between the first reflector (10) and the RFID antenna (41), and the effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located or the effective area of the first reflector (10) is smaller than the area of the cross-section (35b) of the position of the internal space of the first housing (31) where the signal opening (32b) is located; The effective area of the first reflector (10) is determined by the following method to optimize the RFID identification performance of the sample storage device (100): S120. Provide n first test reflectors (10a) with different effective areas, where n≥1, and each of the first test reflectors (10a) is made of a material capable of reflecting electromagnetic waves; S130. Sequentially dispose the n first test reflectors (10a) with different effective areas on the central side of the RFID antenna (41) facing the storage space (34), and obtain respective RFID performance indicators corresponding to when each different first test reflector (10a) is disposed on the central side of the RFID antenna (41) facing the storage space (34) through the RFID component (40); S140. Determine the effective area of the first reflector (10) according to the respective RFID performance indicators obtained in step S130.

32. The method for improving the RFID recognition performance of the sample storage device according to claim 31, wherein, Before S120, the method further includes: S110. Obtain the RFID reference performance indicator of the sample storage device (100) when no first test reflector (10a) is provided; S140 includes: determining the effective area of the first reflector (10) according to the effective areas of the first test reflectors (10a) corresponding to the RFID performance indicators superior to the RFID reference performance indicator.

33. The method for improving the RFID recognition performance of the sample preservation device according to claim 31, wherein, Step S140 includes: setting the effective area of the first test reflector (10a) corresponding to the detected optimal RFID performance indicator as the effective area of the first reflector (10).

34. The method for improving the RFID identification performance of the sample storage device according to claim 31, wherein, The sample storage device (100) further includes a second reflector (20) made of a material capable of reflecting electromagnetic waves, and the second reflector (20) is disposed on the side of the RFID antenna (41) away from the center of the storage space (34); The method further includes: S220. Provide m second test reflectors (20a) with different areas, where m≥1, and each of the second test reflectors (20a) is made of a material capable of reflecting electromagnetic waves; S230. One by one, set the m second measured reflectors (20a) with different areas on the central side of the RFID antenna (41) away from the storage space (34), and obtain respective RFID performance indicators corresponding to when each different second measured reflector (20a) is set on the central side of the RFID antenna (41) away from the storage space (34) through the RFID component (40); S240. Determine the area of the second reflector (20) according to the respective RFID performance indicators obtained in step S230.

35. A method for improving the RFID recognition performance of a sample storage device, characterized in that, The sample storage device (100) includes: a box body (30), a cover body (50), an RFID component (40), a first reflector (10), and a second reflector (20); The box body (30) includes a first housing (31) made of a material capable of reflecting electromagnetic waves. A storage space (34) for placing a sample provided with an RFID tag (210) is provided inside the first housing (31). An article opening (32a) and a signal opening (32b) for communicating the storage space (34) with the outside are further provided on the first housing (31); The cover body (50) can be covered on the article opening (32a); the cover body (50) is made of a material capable of reflecting electromagnetic waves, or the cover body (50) includes a baffle (53) made of a material capable of reflecting electromagnetic waves. When the cover body (50) covers the article opening (32a), the baffle (53) completely covers the article opening (32a); The RFID component (40) includes an RFID antenna (41) and an RFID reader (42) electrically connected to the RFID antenna (41). The RFID antenna (41) is provided inside or outside the signal opening (32b), or is provided at the signal opening (32b), and the emitting surface of the RFID antenna (41) faces the center of the storage space (34). The RFID reader (42) is used to read the information of the RFID tag (210) in the storage space (34) through the RFID antenna (41); The first reflector (10) is made of a material capable of reflecting electromagnetic waves; the first reflector (10) is provided on the central side of the RFID antenna (41) facing the storage space (34), and a gap is formed between the first reflector (10) and the RFID antenna (41). A gap is formed between the edge of the first reflector (10) and the edge of the signal opening (32b). The effective area of the first reflector (10) is smaller than the area of the cross-section (35a) of the position of the internal space of the first housing (31) where the first reflector (10) is located, or the effective area of the first reflector (10) is smaller than the area of the cross-section (35b) of the position of the internal space of the first housing (31) where the signal opening (32b) is located; The second reflector (20) is made of a material capable of reflecting electromagnetic waves; the second reflector (20) is disposed on a central side of the RFID antenna (41) away from the accommodation space (34); The method includes: S310: Provide n first measured reflectors (10a) with different effective areas and m second measured reflectors (20a) with different areas. Number each of the first measured reflectors (10a) as 1 to n, and number each of the second measured reflectors (20a) as 1 to m. Wherein, n≥1, m≥1, and each of the first measured reflectors (10a) and each of the second measured reflectors (20a) are made of a material capable of reflecting electromagnetic waves; S320: Let i = 1 and j = 1; S330: Dispose one of the first measured reflectors (10a), that is, the i-th first measured reflector (10a), on a central side of the RFID antenna (41) facing the accommodation space (34), and dispose one of the second measured reflectors (20a), that is, the j-th second measured reflector (20a), on a central side of the RFID antenna (41) away from the accommodation space (34); S340: Obtain the current RFID performance index through the RFID component (40); S350: Let i = i + 1. If i is not greater than n, repeat steps S330, S340, and S350, otherwise execute step S360; S360: Let i = 1 and j = j + 1. If j is not greater than m, repeat steps S330, S340, and S350, otherwise execute step S370; S370: Determine the effective area of the first reflector (10) and the area of the second reflector (20) based on the respective RFID performance indexes obtained in the above steps.

36. The method for improving the RFID recognition performance of the sample storage device according to claim 35, wherein, Before S120, the method further includes: S110, obtaining the RFID reference performance index when the sample storage device (100) does not have the first measured reflector (10a) and the second measured reflector (20a); S140 includes: determining the effective area of the first reflector (10) and the area of the second measured reflector (20a) based on the effective area of the first measured reflector (10a) and the second measured reflector (20a) corresponding to each RFID performance index better than the RFID reference performance index.

37. The method for improving the RFID identification performance of the sample storage device according to claim 35, wherein, The step S140 includes: setting the effective area of the first measured reflector (10a) and the area of the second measured reflector (20a) corresponding to the detected optimal RFID performance index as the effective area of the first reflector (10) and the area of the second reflector (20).

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