Method and device for automatically identifying position and model of sample disc

Abstract

The invention relates to a method and device for automatically identifying the position and model of a sample disc, and the method comprises the steps: arranging a sensing assembly in each disc bin of a sample disc rack, and each sensing assembly at least comprises two Hall switches; magnets are arranged at the bottoms of the sample plates, the positions of the magnets of the sample plates of different models are different, and the magnets are used in cooperation with the Hall switches in the corresponding sensing assemblies; after the sample disc is placed in the corresponding disc bin, the magnet at the bottom of the sample disc can be sensed by one Hall switch. When different sample discs are replaced, automatic identification can be achieved, and therefore the problems that in the prior art, mistakes and forgets are prone to occurring due to the fact that manual setting needs to be carried out are solved.

Description

Technical Field

[0001] The invention relates to the technical field of sample injectors, and in particular to a method and a device for automatically identifying a position and a model of a sample tray. Background Art

[0002] The sampler is mainly used in chromatographic experiments and other experimental analyses, such as the automatic sampler disclosed in the utility model patent with authorization announcement number CN 221993389 U, which mainly includes a rack and a mounting module. The mounting module includes a solvent module, a mixing module, a sample module, an incubation module and an aging module. The sample tray rack of the sample module supports various types of sample trays for sample pretreatment and analysis of sample bottles of different specifications. After the sampler is powered on and reset, the position of the sample tray is first set through the operating handle or the computer control software, and then the size of the sample bottle to be used next, the position of the sample tray (three positions can be placed), and other information are set, and then the next step of analysis and testing is carried out. During this setting process, it is easy to set the wrong setting or forget to change the setting, resulting in waste of samples, waste of time, damage to the instrument, etc. If the instrument is shut down and restarted, the position of the sample tray needs to be calibrated again. Summary of the invention

[0003] The purpose of the present invention is to provide a method and device for automatically identifying the position and model of a sample tray, so as to solve the problems of easy mistakes and easy forgetting in the manual setting in the prior art.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A method for automatically identifying the position and model of a sample tray. A sensing component is set in each tray compartment of a sample tray rack, and the sensing component includes at least two Hall switches. A magnet is set at the bottom of the sample tray. The magnet positions of sample trays of different models are different, and the magnet is used in conjunction with a Hall switch in the corresponding sensing component. After the sample tray is placed in the corresponding tray compartment, the magnet at the bottom of the sample tray can be sensed by one of the Hall switches.

[0006] Furthermore, one of the sensing components includes four Hall switches, and the other sensing component includes three Hall switches, and the three Hall switches in each sensing component are distributed in the same manner.

[0007] A device for automatically identifying the position and model of a sample tray comprises a sample tray rack and a sample tray, wherein the sample tray rack is provided with at least two tray bins, each tray bin is provided with a sensing component, and the sensing component comprises at least two Hall switches; there are more than two types of sample trays, and the tray bins can selectively cooperate with sample trays of different models; a magnet is provided at the bottom of each sample tray, and the magnet positions of sample trays of different models are different, and the magnet is used in cooperation with a Hall switch in the corresponding sensing component.

[0008] Furthermore, after the sample tray is placed in the tray bin, the magnet at the bottom of the sample tray can be sensed by a Hall switch in the sensing component to determine the position and model of the sample tray.

[0009] Furthermore, the sample tray rack is provided with three tray bins, one of which includes four Hall switches and is defined as a first sensing component; the other sensing components each include three Hall switches and are defined as second sensing components, and the three Hall switches in each second sensing component are distributed in the same manner as the three Hall switches in the first sensing component.

[0010] Furthermore, each of the tray bins can be used to place a 2 ml sample tray, a 5 ml sample tray or a 60 ml sample tray, and the sample tray rack can hold a 20 ml sample tray. The 20 ml sample tray occupies three tray bins, and the three Hall switches of the second sensing component are used to sense the 2 ml sample tray, the 5 ml sample tray and the 60 ml sample tray, respectively. One Hall switch in the first sensing component is used to sense the 20 ml sample tray, and the other three Hall switches are used to sense the 2 ml sample tray, the 5 ml sample tray and the 60 ml sample tray, respectively.

[0011] Furthermore, the sample tray rack is in an L-shaped structure, the tray bin is provided on the horizontal section of the sample tray rack, a hanging portion is provided on the top of the vertical section of the sample tray rack, and a slot-type photoelectric switch is provided on the hanging portion at the top of the vertical section.

[0012] Beneficial effects of the present invention:

[0013] The present invention sets a sensing component in each tray bin of the sample tray rack, and the sensing component includes at least two Hall switches; a magnet is set at the bottom of the sample tray, and the magnet positions of different types of sample trays are different, and the magnet is used in conjunction with a Hall switch in the corresponding sensing component; after the sample tray is placed in the corresponding tray bin, the magnet at the bottom of the sample tray can be sensed by one of the Hall switches, so that the model and position of the placed sample tray can be automatically identified. When replacing different sample trays, it can be automatically identified, thereby solving the problems of easy mistakes and easy forgetting in the manual setting in the prior art, and at the same time improving the working efficiency of the injector when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of a sample tray rack in a device for automatically identifying the position and model of a sample tray of the present invention (without a sample tray placed therein);

[0015] Figure 2 is a schematic diagram of the distribution of Hall switches on the sample tray;

[0016] Figure 3 This is a schematic diagram after three 2 ml sample discs are placed on the sample disc rack;

[0017] Figure 4 This is a schematic diagram after three 5 ml sample pans are placed on the sample pan rack;

[0018] Figure 5 This is a schematic diagram after a 20 ml sample pan is placed on the sample pan rack;

[0019] Figure 6 This is a schematic diagram of three 60 ml sample pans placed on the sample pan rack.

[0020] The names corresponding to the marks in the figure are:

[0021] 1. Sample tray rack; 11. Horizontal section; 12. Tray bin; 13. Vertical section; 14. Hanging part; 2. Slot-type photoelectric switch; 31. Hall switch A; 32. Hall switch B; 33. Hall switch C; 34. Hall switch D; 5. 2 ml sample tray; 6. 5 ml sample tray; 7. 20 ml sample tray; 8. 60 ml sample tray. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] Example:

[0024] like Figure 1 As shown, the device for automatically identifying the position and model of a sample tray comprises a sample tray rack 1 and a sample tray. The sample tray rack 1 is an L-shaped structure. Three tray compartments 12 are provided on the horizontal section 11 of the sample tray rack 1, which can simultaneously hold three small sample trays or one large sample tray. A hanging portion 14 is provided on the top of the vertical section 13 of the sample tray rack 1. The hanging portion 14 is used to hang with the horizontal axis in the sample injector and can slide along the horizontal axis. This is a prior art, so it is not described in detail.

[0025] A slot-type photoelectric switch 2 is provided at the top of the vertical section 13 at the hanging portion 14, which is used in conjunction with the mobile rack in the sampler. The mobile rack is provided with a switch baffle. When the mobile rack moves to the corresponding module, the corresponding slot-type photoelectric switch 2 can be triggered. The sample tray rack 1 of the present invention is one of the modules. Different modules are provided with slot-type photoelectric switches, but the processing circuits connected to the slot-type photoelectric switches 2 are different. For example, when the slot-type photoelectric switch 2 on the sample tray rack 1 is triggered, the internal processing circuit collects and processes the signal, and then gives a signal to the control system of the sampler to identify the module as the sample tray rack 1.

[0026] like Figure 2As shown, each disk bin 12 is provided with a sensing component, one of which includes four Hall switches, defined as a first sensing component; the other sensing components each include three Hall switches, defined as a second sensing component, and the three Hall switches in each second sensing component are distributed in the same manner as the three Hall switches in the first sensing component. In this embodiment, the first sensing component is located in the middle, with a second sensing component on each side. The second sensing component includes Hall switch A31, Hall switch B32, and Hall switch C33, and the first sensing component includes multiple Hall switches D34 based on Hall switch A31, Hall switch B32, and Hall switch C33.

[0027] The bottom of the sample tray is provided with a magnet. The positions of the magnets of different types of sample trays are different, and the magnets are used in conjunction with a Hall switch in the corresponding sensing component. When the Hall switch is used to sense the magnet, it is a one-to-one correspondence. After the sample tray is placed in the tray bin 12, the magnet at the bottom of the sample tray can be sensed by a Hall switch in the sensing component to determine the position and model of the sample tray.

[0028] Commonly used sample tray models include: 2 ml sample tray, 5 ml sample tray, 20 ml sample tray and 60 ml sample tray. 2 ml sample tray, 5 ml sample tray and 60 ml sample tray are small trays, which can be referred to Figure 3 , 4 6, each tray bin 12 can be selected to hold a 2 ml sample tray, a 5 ml sample tray or a 60 ml sample tray. The 2 ml sample tray, the 5 ml sample tray or the 60 ml sample tray have the same appearance, or in other words, they occupy the same space in the tray bin 12. The difference lies in the size and number of holes for accommodating sample bottles. For example, a 2 ml sample tray can hold more sample bottles than a 5 ml sample tray. A 20 ml sample tray is a large tray. A 20 ml sample tray occupies three tray bins 12, that is, the sample tray rack 1 can only hold one 20 ml sample tray. Figure 5 shown.

[0029] The three Hall switches of the second sensing component are used to sense the 2 ml sample tray, the 5 ml sample tray, and the 60 ml sample tray. One Hall switch in the first sensing component is used to sense the 20 ml sample tray, and the other three Hall switches are used to sense the 2 ml sample tray, the 5 ml sample tray, and the 60 ml sample tray. For example, the three Hall switches of the second sensing component are Hall switch A31, Hall switch B32, and Hall switch C33, respectively. The four Hall switches in the first sensing component are Hall switch A31, Hall switch B32, Hall switch C33, and Hall switch D34. The Hall switches A31, Hall switch B32, and Hall switch are distributed in a triangular shape in a group of three. The position of the Hall switch should avoid the bottom of the hole for accommodating the sample bottle mentioned above, because it is thinner here and can be appropriately deviated from there. When a 2 ml sample tray is placed in one of the tray bins 12, the Hall switch A31 is sensed and triggered, and a signal of the identification result can be given to the sampler control system; when the Hall switches A31 in different groups are triggered, it can also be identified which tray bin 12 has the 2 ml sample tray placed in it. When a 5 ml sample pan is placed in one of the pan bins 12, the Hall switch B32 is triggered. When a 20 ml sample pan is placed in the sample pan rack 1, the Hall switch D34 is triggered.

[0030] Three 2 ml sample trays can be placed in the three tray bins 12 at the same time, and 2 ml sample trays, 5 ml sample trays and 60 ml sample trays can also be mixed, which does not affect the automatic identification of the model and position of the sample trays placed. After the sampler host is turned on, the position of the tray rack and the specific model of the sample tray on the tray rack can still be automatically identified, and automatically updated to the operating handle and the computer operating software, realizing the function of automatic identification of the position and model.

[0031] A method for automatically identifying the position and model of a sample tray: a sensing component is set in each tray compartment of a sample tray rack, and the sensing component includes at least two Hall switches; a magnet is set at the bottom of the sample tray, and the magnet positions of sample trays of different models are different, and the magnet is used in conjunction with a Hall switch in the corresponding sensing component; after the sample tray is placed in the corresponding tray compartment, the magnet at the bottom of the sample tray can be sensed by one of the Hall switches, so that the model and position of the placed sample tray can be automatically identified.

[0032] In other embodiments, each sensing component may include two Hall switches, and there are more than two types of sample trays, and the tray bin can selectively cooperate with sample trays of different types. If there are more types of sample trays, the number of Hall switches of each sensing component can be increased adaptively.

[0033] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A method for automatically identifying the position and model of a sample tray, characterized in that: A sensing component is set in each tray bin of the sample tray rack, and the sensing component includes at least two Hall switches; a magnet is set at the bottom of the sample tray, and the magnet positions of different types of sample trays are different, and the magnet is used in conjunction with a Hall switch in the corresponding sensing component; after the sample tray is placed in the corresponding tray bin, the magnet at the bottom of the sample tray can be sensed by one of the Hall switches.

2. The method for automatically identifying the position and model of a sample tray according to claim 1, characterized in that: One of the sensing components includes four Hall switches, and the other sensing component includes three Hall switches. The three Hall switches in each sensing component are distributed in the same manner.

3. A device for automatically identifying the position and model of a sample tray, characterized in that: It includes a sample tray rack and a sample tray. The sample tray rack is provided with at least two tray compartments. Each tray compartment is provided with a sensing component. The sensing component includes at least two Hall switches. There are more than two types of sample trays. The tray compartments can selectively cooperate with sample trays of different types. A magnet is provided at the bottom of the sample tray. The magnet positions of sample trays of different types are different, and the magnet is used in conjunction with a Hall switch in the corresponding sensing component.

4. The device for automatically identifying the position and model of a sample tray according to claim 3, characterized in that: After the sample tray is placed in the tray compartment, the magnet at the bottom of the sample tray can be sensed by a Hall switch in the sensing assembly to determine the position and model of the sample tray.

5. The device for automatically identifying the position and model of a sample tray according to claim 3, characterized in that: The sample tray rack is provided with three tray bins, one of which includes four Hall switches and is defined as a first sensing component; the other sensing components each include three Hall switches and are defined as second sensing components, and the three Hall switches in each second sensing component are distributed in the same manner as the three Hall switches in the first sensing component.

6. The device for automatically identifying the position and model of a sample tray according to claim 5, characterized in that: Each of the tray bins can be used to place a 2 ml sample tray, a 5 ml sample tray or a 60 ml sample tray. The sample tray rack can hold a 20 ml sample tray. The 20 ml sample tray occupies three tray bins. The three Hall switches of the second sensing component are used to sense the 2 ml sample tray, the 5 ml sample tray and the 60 ml sample tray respectively. One Hall switch in the first sensing component is used to sense the 20 ml sample tray, and the other three Hall switches are used to sense the 2 ml sample tray, the 5 ml sample tray and the 60 ml sample tray respectively.

7. The device for automatically identifying the position and model of a sample tray according to claim 3, characterized in that: The sample tray rack is in an L-shaped structure. The tray bin is arranged on the horizontal section of the sample tray rack. A hanging part is arranged on the top of the vertical section of the sample tray rack. A slot-type photoelectric switch is arranged on the hanging part at the top of the vertical section.

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