CN111380739A - Anti-interference device, sample analysis method and sample analyzer - Google Patents
Anti-interference device, sample analysis method and sample analyzer Download PDFInfo
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- CN111380739A CN111380739A CN201811611419.5A CN201811611419A CN111380739A CN 111380739 A CN111380739 A CN 111380739A CN 201811611419 A CN201811611419 A CN 201811611419A CN 111380739 A CN111380739 A CN 111380739A
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- 238000012284 sample analysis method Methods 0.000 title abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims description 23
- 239000010437 gem Substances 0.000 claims description 12
- 229910001751 gemstone Inorganic materials 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 102000004169 proteins and genes Human genes 0.000 claims description 5
- 108090000623 proteins and genes Proteins 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000000601 blood cell Anatomy 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004820 blood count Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 210000003743 erythrocyte Anatomy 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 210000000265 leukocyte Anatomy 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010339 medical test Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N2015/1006—Investigating individual particles for cytology
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Abstract
The invention discloses an anti-interference device, a sample analysis method and a sample analyzer, wherein the device comprises: the device comprises a voltage module, a first switch module, a second switch module, a control module and a detection mechanism; the voltage module is electrically connected with the detection mechanism through the first switch module and the second switch module in sequence; the control module is electrically connected with the first switch module and the second switch module and is used for controlling the first switch module and the second switch module to be opened or closed so as to select to apply or not apply the voltage generated by the voltage module to the object to be cleaned of the detection mechanism; when the voltage generated by the voltage module is applied to the object to be cleaned of the detection mechanism, the control module controls the first switch module to be switched off, controls the second switch module to be switched on and controls the first switch module to be switched on; the first switch module is a non-mechanical switch. By the mode, the reliability of the detection result of the sample analyzer can be improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an anti-interference device, a sample analysis method and a sample analyzer.
Background
A blood cell analyzer is a commonly used medical testing device that counts red blood cells and white blood cells in a blood sample to be tested by passing the blood cells in the blood sample to be tested through a jewel hole. The blood sample to be detected usually contains more protein substances, and in order to avoid the residual protein substances from changing the aperture of the gem pore, the protein substances are removed by a high-pressure burning mode.
When a mechanical switch of a battery relay arranged on the existing high-voltage burning circuit is switched to be closed, ignition is easy to generate. Especially under the condition of high voltage, the ignition phenomenon can generate interference on a control signal and a power supply of the relay, the normal operation of software is influenced, especially FPGA (field programmable gate array) is reloaded, so that the abnormality occurs in the operation process of the instrument, and the reliability of a detection result is influenced.
In a long-term research and development process, the inventor of the application finds that the conventional burning circuit is easy to generate interference on a sample analyzer, and the reliability of a detection result is poor.
Disclosure of Invention
The invention mainly solves the technical problem of providing an anti-interference device, a sample analysis method and a sample analyzer, which can improve the reliability of a detection result of the sample analyzer.
In order to solve the technical problems, the invention adopts a technical scheme that: an interference preventing device is provided.
Wherein, the interference preventing device includes: the device comprises a voltage module, a first switch module, a second switch module, a control module and a detection mechanism; the voltage module is electrically connected with the detection mechanism through the first switch module and the second switch module in sequence; the control module is electrically connected with the first switch module and the second switch module and is used for controlling the first switch module and the second switch module to be opened or closed so as to select to apply or not apply the voltage generated by the voltage module to the object to be cleaned of the detection mechanism; when the voltage generated by the voltage module is applied to the object to be cleaned of the detection mechanism, the control module firstly controls the first switch module to be switched off, then controls the second switch module to be switched on, and then controls the first switch module to be switched on.
In order to solve the technical problem, the invention adopts another technical scheme that: a sample analyzer is provided.
Wherein, sample analyzer includes: the sample analyzer main part that jam-proof device and jam-proof device be connected, the jam-proof device is used for the firing to remain the albumen class material around the precious stone hole, avoids precious stone hole aperture change to influence the accuracy of testing result to can avoid producing the interference to sample analyzer.
In order to solve the technical problem, the invention adopts another technical scheme that: a method of sample analysis is provided.
The method comprises the following steps:
providing said tamper-proof device;
the control module controls the first switch module to be switched off;
keeping the off state of the first control switch, and then controlling the second switch module to be closed;
and keeping the second control switch in a closed state, and then controlling the first switch module to be closed.
The invention has the beneficial effects that: different from the situation of the prior art, the interference prevention device is provided with the first switch module and the second switch module which are sequentially connected, when the voltage generated by the voltage module is applied to the object to be cleaned of the detection mechanism, the control module controls the first switch module to be switched off, then controls the second switch module to be switched on and then controls the first switch module to be switched on, and the control module controls the switching-off and switching-on time sequences of the first switch module and the second switch module by setting different control instructions, so that the interference on the signal of the sample analyzer can be avoided in the process of firing the object to be cleaned, and the reliability of the detection result is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic structural view of a first embodiment of a tamper-proof device according to the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a first control switch according to the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of a control switch according to the present invention;
FIG. 4 is a schematic structural diagram of a second embodiment of an interference preventing device according to the present invention
FIG. 5 is a schematic diagram of the structure of one embodiment of a sample analyzer of the present invention;
FIG. 6 is a schematic flow chart diagram of one embodiment of a sample analysis method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of an interference prevention device 10 according to the present invention, including: a voltage module 100, a first switch module 200, a second switch module 300, a control module 500, and a detection mechanism 400; the voltage module 100 is electrically connected with the detection mechanism 400 through the first switch module 200 and the second switch module 300 in sequence; the control module 500 is electrically connected to both the first switch module 200 and the second switch module 300, and is used for controlling the first switch module 200 and the second switch module 300 to be opened or closed so as to select whether the voltage generated by the voltage module 100 is applied to the object to be cleaned of the detection mechanism 400 or not; when the voltage generated by the voltage module 100 is selectively applied to the object to be cleaned of the detection mechanism 400, the control module 500 firstly controls the first switch module 200 to be turned off, then controls the second switch module 300 to be turned on, and then controls the first switch module 200 to be turned on.
In this embodiment, the interference preventing apparatus 10 is provided with a first switch module 200 and a second switch module 300 which are connected in sequence, and when the voltage module 100 applies the generated voltage to the object to be cleaned in the detecting mechanism 400, the control module 500 controls the first switch module 200 to be opened first, then controls the second switch module 300 to be closed, and then controls the first switch module 200 to be closed, and the control module 500 controls the opening and closing timings of the first switch module 200 and the second switch module 300 by outputting different control instructions, so that the interference of the ignition to the counting signal of the sample analyzer during the process of burning the object to be cleaned can be avoided, and the reliability of the detection result can be improved.
Specifically, the voltage applied to the object to be cleaned is a high voltage, and the voltage range is 100-120V, such as 100V, 115V or 120V. The voltage of the voltage module 100 needs to pass through the first switch module 200 and the second switch module 300 in sequence to reach the detection mechanism 400, so that the first switch module 200 is disconnected to isolate high voltage, the high voltage is not applied to the second switch module 300, and the second switch module 300 is controlled to be closed without high voltage, and ignition is not caused. After the second switch module 300 is closed, the voltage of the voltage module 100 is applied to the second switch module 300 for high-voltage ignition through the conduction of the first switch module 200, so that the ignition phenomenon caused by closing the second switch module 300 under high voltage can be avoided, that is, the loading and running of analysis software cannot be interfered, and a reliable detection result can be obtained.
Further, the first switch module 200 includes a non-mechanically controlled switch. Non-mechanical new switches include light sensitive switches, pressure sensitive switches, and the like. In order to ensure that the second switch module 300 is closed when no voltage is applied, the first switch module 200 is arranged between the voltage module 100 and the second switch module 300 and is switched on and off under the condition of applying the voltage, and the adoption of a non-mechanical switch can avoid sparking in the switching-on and switching-off processes and improve the reliability of the measurement result.
In one embodiment, the first switch module 200 is a photosensitive switch, please refer to fig. 1, fig. 2 and fig. 4, fig. 2 is a schematic structural diagram of an embodiment of the first switch module of the present invention, fig. 4 is a schematic structural diagram of a second embodiment of an interference preventing device of the present invention, and the first switch module 200 includes two photosensitive switches (210 and 220). Specifically, the first photosensitive switch 210 includes
A first light-sensitive switching module 211, a first light-emitting unit 212 corresponding to the first light-sensitive switching module 211; a first end of the first photosensitive switch module 211 is connected to the first output end 101 of the voltage module 100, and a second end of the first photosensitive switch module 211 is connected to the second switch module 300; the first end 2121 of the first light emitting unit 212 is connected to the operating voltage 600, and the second end 2122 of the first light emitting unit 212 is connected to the control module 500.
The second photosensitive switch 220 includes a second photosensitive switch module 221, a second light emitting unit 222 corresponding to the second photosensitive switch module 221; a first end of the second photosensitive switch module 221 is connected to the second output terminal 102 of the voltage module 100, and a second end of the second photosensitive switch module 221 is connected to the second switch module 300; the first terminal 2221 of the second light emitting unit 222 is connected to the operating voltage 600, and the second terminal of the second light emitting unit 222 is connected to the control module 500.
The control module 500 includes a first output terminal 501 and a second output terminal 502, where the first output terminal 501 outputs a first control signal and the second output terminal 502 outputs a second control signal; the first output terminal 501 of the control module 500 is connected to the second terminal 2122 of the first light emitting unit 212 and the second terminal 2222 of the second light emitting unit 222. That is, in the using process, the first light emitting unit 212 and the second light emitting unit 222 receive the first control instruction, and control the first end of the first photosensitive switch module 211 and the second end of the first photosensitive switch module 211 to be switched on or off, and the first end of the second photosensitive switch module 221 and the second end of the second photosensitive switch module 221 to be switched on or off according to the first control instruction.
Specifically, when the first control signal is at a low level, the first light emitting unit 212 and the second light emitting unit 222 emit light, and the generated light signals enable the first photosensitive switch module 211 and the second photosensitive switch module 221 to be respectively turned on, that is, the voltage module 100 and the second switch module 200 are connected. When the first control signal is at a high level, the first light emitting unit 212 and the second light emitting unit 222 do not emit light, and do not generate light signals, and accordingly, neither the first photosensitive switch module 211 nor the second photosensitive switch module 221 is turned on, i.e., the voltage module 100 is not connected to the second switch module 200.
Alternatively, the first light emitting unit 212 may include a light emitting diode, and the first photo-sensitive switching module 211 may include a photo-transistor. In one embodiment, the first photosensitive switch module 211 includes a first MOS transistor and a second MOS transistor; a first pass end 2111 of the first MOS transistor is connected to the first output end 101 of the voltage module 100, a second pass end 2112 of the first MOS transistor is connected to a first pass end 2113 of the second MOS transistor, and a second pass end 2114 of the second MOS transistor is connected to the second switch module 300; the first MOS transistor and the second MOS transistor share the gate 2115. The structure of the second photosensitive switch module 221 is the same as that of the first photosensitive switch 211, and specifically, the second photosensitive switch module 221 includes a third MOS transistor and a fourth MOS transistor; the first path end 2211 of the third MOS transistor is connected to the second output end 102 of the voltage module 100, the second path end 2212 of the third MOS transistor is connected to the first path end 2213 of the fourth MOS transistor, and the second path end 2214 of the fourth MOS transistor is connected to the second switch module 300; the third and fourth MOS transistors share a gate 2215.
Optionally, the second control switch 300 may be a mechanical control switch, the mechanical control switch controls the connection or disconnection of the circuit through a mechanical structure, and when voltage is not required to be applied to the object to be cleaned, the high voltage on the control circuit does not affect the detection mechanism 400, which is beneficial to protecting the detection mechanism. In an embodiment, referring to fig. 1, fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of an embodiment of a second control switch 300 according to the present invention, in which the second control switch 300 includes an electromagnetic switch, and specifically, the second control switch 300 includes at least an electromagnet 310, a first mechanical switch 321 and a second mechanical switch 322; the first mechanical switch 321 includes a first normally open contact 3211, a first common contact 3212, and a first normally closed contact 3213, and the second mechanical switch 322 includes a second normally open contact 3221, a second common contact 3222, and a second normally closed contact 3223. The common contact can be switched to connect a normally open contact or a normally closed contact, that is, the first common contact 3212 can be switched to connect a first normally open contact 3213 or a first normally closed contact 3211, and the second common contact 3222 can be switched to connect a second normally open contact 3223 or a second normally closed contact 3221.
Specifically, the electromagnet 310 includes an iron core 311 and a conducting wire 312 diffracted on the iron core 310, and two ends of the conducting wire 312 are respectively connected to the operating voltage 700 and the second output end 502 of the control module 500;
the first common contact 3212 is connected to the second path end 2114 of the second MOS transistor, the second common contact 3222 is connected to the second path end 2214 of the fourth MOS transistor, and the first normally open contact 3213 and the second normally open contact 3223 are respectively connected to the detection mechanism 400.
Further, the detection mechanism 400 includes a front cell, a rear cell, and a jewel hole disposed between the front cell and the rear cell, and the first normally open contact 3213 and the second normally open contact 3223 are respectively connected to the detection mechanism 400 such that a voltage is applied around the jewel hole. In addition, the first and second normally-closed contacts 3211 and 3221 are grounded.
Further, the device includes a reset mechanism (not shown), a first armature (not shown) and a second armature (not shown) connected to the reset mechanism, the first armature is connected to the first common contact 3212, and the second armature is connected to the second common contact 3222; when the second control signal is a low level signal, the first common contact 3212 is switched to be connected with the first normally open contact 3213 under the magnetic action of the electromagnet, and the second common contact 3222 is switched to be connected with the second normally open contact 3223 under the magnetic action of the electromagnet; when the second control signal is a high-level signal, the first common contact 3212 is switched to be connected with the first normally-closed contact 3211 under the action of the reset mechanism, and the second common contact 3222 is switched to be connected with the second normally-closed contact 3221 under the action of the reset mechanism.
In the using process, when the object to be cleaned needs to be burned, first, the first control signal output by the control device 500 is at a high level, the first light emitting unit 212 and the second light emitting unit 222 do not emit light, and the first light-sensitive switch module 211 and the second light-sensitive switch module 221 are not respectively turned on, that is, the second switch module 300 and the voltage module 100 are separated by the first switch module 200. At this time, no voltage is applied to the second switch module 300, the second control signal output by the control device 500 is at a low level, a current passes through the wire 312 wound around the iron core 311, and the generated magnetic field attracts the armature to overcome the pulling force of the reset mechanism, so that the first common contact 3212 is switched to be connected with the first normally open contact 3213, and the second common contact 3222 is switched to be connected with the second normally open contact 3223. Then, the first control signal output by the control device 500 is controlled to be at a low level, the first light emitting unit 212 and the second light emitting unit 222 emit light, the first photosensitive switch module 211 and the second photosensitive switch module 221 are both turned on, that is, the second switch module 300 enables the voltage module 100 and the first switch module 200 to be connected, the voltage can sequentially pass through the first control switch 200 and the second control switch 300 to the detection mechanism 400, that is, the voltage of the voltage module 100 is applied to the detection mechanism 400. In other words, in the present embodiment, in the second switch module 300, the switch closing process (the common contact is communicated with the normally open contact) and the voltage applying process are separated from each other through the control of the first control signal and the second control signal, and the two processes are performed separately according to the sequence, so that the second switch module 300 is prevented from being closed under the condition of applying voltage, the ignition phenomenon does not occur, the loading and the operation of the corresponding software are not affected, and the reliability of the detection result is improved.
When the object to be cleaned does not need to be burned, the control device 500 makes the first control signal and the second control signal both be high level, the first light emitting unit 212 and the second light emitting unit 222 do not emit light, and the first light-sensitive switch module 211 and the second light-sensitive switch module 221 are not respectively turned on, that is, the second switch module 300 and the voltage module 100 are separated by the first switch module 200. Meanwhile, no current passes through the conducting wire 312 wound on the iron core 311, no magnetic field is generated, no acting force is applied to the armature, and under the action of the reset mechanism, the first common contact 3212 is kept connected with the first normally closed contact 3211 point, and the second common contact 3222 is kept connected with the second normally closed contact 3221 point. That is, the first control switch 200 and the second control switch 300 are both in the off state.
Further, the voltage module 100 may provide a dc voltage or an ac voltage. When the voltage module 100 provides the ac voltage, the first control switch 200 and the second control switch 300 are turned off at the same time, so that the interference of the initial zero voltage in the circuit to the test software through the first control switch 200 can be avoided.
In order to solve the technical problem, the invention adopts another technical scheme that: a sample analyzer is provided.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of a sample analyzer according to the present invention, wherein the sample analyzer 50 includes: the sample analyzer main body 520 that jam-proof device 510 and be connected with jam-proof device 510, jam-proof device 510 are used for the ignition to remain the albumen class material around the precious stone hole, avoid precious stone hole aperture change to influence the accuracy of testing result to can avoid producing the interference to sample analyzer 50.
In the present embodiment, the specific technical details and technical benefits of the interference preventing device 510 have been set forth in detail above, and will not be described herein again. The sample analyzer 50 is provided with a first switch module and a second switch module which are connected in sequence, when the voltage generated by the voltage module is applied to the object to be cleaned of the detection mechanism, the control module firstly controls the first switch module to be switched off, then controls the second switch module to be switched on, and then controls the first switch module to be switched on, so that the interference on the signal of the sample analyzer can be avoided in the process of burning the object to be cleaned, and the reliability of the detection result is improved.
Further, the sample analyzer 50 is any sample analyzer that requires a residual proteinaceous substance burn, and in particular a blood cell analyzer that includes red blood cell counting and/or white blood cell counting functionality. The sample analyzer body 520 includes an intelligent terminal (not shown) for loading analysis software of the sample analyzer 500 and displaying a detection result. The interference preventing device 510 does not affect the loading and operation of the analysis software during the burning cleaning process of the object to be cleaned (the protein substance remained around the gem hole), and is beneficial to improving the reliability of the detection result.
In order to solve the technical problem, the invention adopts another technical scheme that: a method of sample analysis is provided.
Referring to fig. 6, fig. 6 is a schematic flow chart of an embodiment of a sample analysis method according to the present invention, the method including the steps of:
s100, providing an anti-interference device.
In step S100, the detailed structure and technical benefits of the interference preventing device have been described in detail in the foregoing, and are not described in detail herein.
S200, the control module controls the first switch module to be disconnected.
In step S200, the control module sends a first control command to control the first switch module to turn off, specifically, the first control command is a high level signal.
And S300, keeping the off state of the first control switch, and then controlling the second switch module to be closed.
In step S300, the open state of the first control switch is maintained, and the control module sends a second control command to control the second switch module to be closed, specifically, the second control command is a high level signal. Also, the second control switch is closed when the first control switch is switched off, and also no voltage exists at two ends of the second control switch, so that the problem of sparking cannot occur to the closed switch, and the influence on the sample analyzer is avoided.
And S400, keeping the second control switch in a closed state, and then controlling the first switch module to be closed.
In step S400, after the second control switch completes the closing action, the closing state of the second control switch is maintained, at this time, the control module sends a first control command to control the first switch module to be opened, specifically, the first control command is a low level signal to close the first control switch, and the voltage reaches the object to be cleaned through the first control switch and the second control switch to complete the cauterization cleaning process.
In the embodiment, the control module controls the first switch module to be switched off, then controls the second switch module to be switched on, and then controls the first switch module to be switched on, and the control module controls the switching-off and switching-on time sequences of the first switch module and the second switch module by outputting different control instructions, so that interference on a counting signal of the sample analyzer can be avoided in the process of burning the object to be cleaned, and the reliability of a detection result is improved.
In summary, the present invention discloses an interference prevention device and a sample analyzer, the device includes: the device comprises a voltage module, a first switch module, a second switch module, a control module and a detection mechanism; the voltage module is electrically connected with the detection mechanism through the first switch module and the second switch module in sequence; the control module is electrically connected with the first switch module and the second switch module and is used for controlling the first switch module and the second switch module to be opened or closed so as to select to apply or not apply the voltage generated by the voltage module to the object to be cleaned of the detection mechanism; when the voltage generated by the voltage module is applied to the object to be cleaned of the detection mechanism, the control module firstly controls the first switch module to be switched off, then controls the second switch module to be switched on, and then controls the first switch module to be switched on. By the mode, the reliability of the detection result of the sample analyzer can be improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (12)
1. An anti-interference device is characterized by comprising a voltage module, a first switch module, a second switch module, a control module and a detection mechanism;
the voltage module is electrically connected with the detection mechanism sequentially through the first switch module and the second switch module;
the control module is electrically connected with the first switch module and the second switch module and is used for controlling the first switch module and the second switch module to be opened or closed so as to select to apply or not apply the voltage generated by the voltage module to the object to be cleaned of the detection mechanism;
when the voltage generated by the voltage module is applied to the object to be cleaned of the detection mechanism, the control module controls the first switch module to be switched off, then controls the second switch module to be switched on and then controls the first switch module to be switched on;
the first switch module is a non-mechanical switch.
2. The apparatus as claimed in claim 1, wherein the voltage applied to the object to be cleaned of the detection mechanism is 100-120V.
3. The apparatus of claim 1, wherein the first switch module comprises a first photosensitive switch module, a second photosensitive switch module, a first light emitting unit corresponding to the first photosensitive switch module, and a second light emitting unit corresponding to the second photosensitive switch module;
the first end of the first photosensitive switch module is connected with the first output end of the voltage module, and the second end of the first photosensitive switch module is connected with the second switch module;
the first end of the second photosensitive switch module is connected with the second output end of the voltage module, and the second end of the second photosensitive switch module is connected with the second switch module;
the first end of the first light-emitting unit is connected with a working voltage, and the second end of the first light-emitting unit is connected with the control module;
the first end of the second light-emitting unit is connected with working voltage, and the second end of the second light-emitting unit is connected with the control module.
4. The apparatus of claim 3, wherein the first photosensitive switching module comprises a first MOS transistor and a second MOS transistor;
the first channel end of the first MOS tube is connected with the first output end of the voltage module, the second channel end of the first MOS tube is connected with the first channel end of the second MOS tube, and the second channel end of the second MOS tube is connected with the second switch module; the first MOS tube and the second MOS tube share a grid;
the first photosensitive switch module comprises a third MOS tube and a fourth MOS tube;
the first path end of the third MOS tube is connected with the second output end of the voltage module, the second path end of the third MOS tube is connected with the first path end of the fourth MOS tube, and the second path end of the fourth MOS tube is connected with the second switch module; the third MOS tube and the fourth MOS tube share a grid electrode.
5. The apparatus of claim 4, wherein the control module comprises a first output and a second output, the first output of the control module outputting a first control signal, the second output of the control module outputting a second control signal; and a first output end of the control module is respectively connected with a second end of the first light-emitting unit and a second end of the second light-emitting unit.
6. The apparatus of claim 5, wherein the second control switch comprises at least an electromagnet, a first mechanical switch and a second mechanical switch; first mechanical switch includes first normally open contact, first public contact and first normally closed contact, second mechanical switch includes second normally open contact, second public contact and second normally closed contact, first public contact can switch over in order to connect first normally open contact or first normally closed contact, second public contact can switch over in order to connect second normally open contact or second normally closed contact.
7. The device of claim 6, wherein the electromagnet comprises an iron core and a wire wound on the iron core, and the two ends of the wire are respectively connected to the operating voltage and the second output end of the control module;
the first common contact is connected with a second path end of the second MOS tube, the second common contact is connected with a second path end of the fourth MOS tube, and the first normally open contact and the second normally open contact are respectively connected with the detection mechanism.
8. The apparatus according to claim 6, wherein the detection mechanism comprises a front pool, a back pool and a jewel hole disposed between the front pool and the back pool, and the first normally open contact and the second normally open contact are respectively connected with the detection mechanism.
9. The device of claim 6, further comprising a reset mechanism, a first armature and a second armature connected to the reset mechanism, wherein the first armature is connected to the first common contact and the second armature is connected to the second common contact;
when the second control signal is a low level signal, the first common contact is switched to be connected with the first normally open contact under the action of the magnetic force of the electromagnet, and the second common contact is switched to be connected with the second normally open contact under the action of the magnetic force of the electromagnet;
when the second control signal is a high-level signal, the first common contact is switched to be connected with the first normally closed contact under the action of the reset mechanism, and the second common contact is switched to be connected with the second normally closed contact under the action of the reset mechanism.
10. A sample analyzer, comprising the interference prevention device of any one of claims 1-9 and a sample analyzer body connected to the interference prevention device, wherein the interference prevention device is configured to burn protein substances remaining around the gem pore, so as to prevent the change in pore size of the gem pore from affecting the accuracy of the detection result and from interfering with the sample analyzer.
11. A method of tamper-proofing, the method comprising:
providing a tamper-proof device according to any of claims 1-9;
the control module controls the first switch module to be switched off;
keeping the off state of the first control switch, and then controlling the second switch module to be closed;
and keeping the second control switch in a closed state, and then controlling the first switch module to be closed.
12. The method of claim 11, wherein the method comprises:
when the first control switch receives a low level signal, the first control switch is closed; when the first control switch receives a high level signal, the first control switch is switched off;
when the second control switch receives a low level signal, the second control switch is closed; when the second control switch receives a high level signal, the second control switch is switched off.
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| CN201811611419.5A CN111380739A (en) | 2018-12-27 | 2018-12-27 | Anti-interference device, sample analysis method and sample analyzer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811611419.5A CN111380739A (en) | 2018-12-27 | 2018-12-27 | Anti-interference device, sample analysis method and sample analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112683949A (en) * | 2020-11-30 | 2021-04-20 | 深圳市科曼医疗设备有限公司 | Method and system for detecting blockage of jewel hole and storage medium |
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