Liquid level detection method, device and system
A liquid level detection and probe technology, applied in the field of biomedicine, can solve the problems of parameter data jump, reduce the accuracy of liquid level detection, reduce the accuracy of probe parameter data, etc.
Active Publication Date: 2019-07-09
MACCURA MEDICAL INSTR CO LTD
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Problems solved by technology
Due to environmental factors, the parameter data output by the probe may jump at a certain moment
And in the case of double probes or more probes, mutual interference between probes is prone to occur
The probe that outputs jumping parameter data will interfere more seriously with other probes, which will greatly reduce the accuracy of the parameter data output by the probe.
Thereby reducing the accuracy of liquid level detection
Method used
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[0021] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, many specific details are proposed in order to provide a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. The present invention is by no means limited to any specific configurations and algorithms proposed below, but covers any modification, replacement and improvement of elements, components and algorithms without departing from the spirit of the present invention. In the drawings and the following description, well-known structures and technologies are not shown in order to avoid unnecessary obscurity of the present inv...
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The invention provides a liquid level detecting method, device and system, and relates to the field of biomedical treatment. The method includes the steps of obtaining first signal data of two or more probes used in parallel, adjusting the first signal data to obtain second signal data so that the absolute value of the difference between the second signal data of two or more probes used in parallel larger than a preset signal threshold, collecting working signal values of current relative reference faces of the adjusted probes, detecting whether the working signal values reach a preset threshold or not, controlling the movement speeds of the to-be-determined probes with the working signal values reaching the preset threshold to be reduced to a preset speed, keeping the speed for a preset time duration, obtaining the working signal values of at least one relative reference face of the to-be-determined probes, and determining that the to-be-determined probes make contact with the to-be-detected liquid level if the working signal values of at least one relative reference face reach the preset threshold. By means of the technical scheme, the accuracy of the detecting result of the probes can be improved.
Description
Technical field [0001] The invention relates to the field of biomedicine, in particular to a liquid level detection method, device and system. Background technique [0002] In the biomedical field, it is often necessary to analyze liquids. The probe used to suck the liquid in the liquid analysis device is driven by the motor to move downward or upward in the liquid container. In order to prevent the probe from hitting the bottom of the liquid container and to prevent the suction of unnecessary liquid, when the probe touches the liquid surface of the liquid in the liquid container, the probe absorbs the liquid. [0003] In some analytical experiments, reagents need to be added two or more times. When working with a single probe, it is necessary to align the single probe with the first liquid, control the drop of the single probe, and reset the single probe after the first liquid is absorbed. Then the single probe is aligned with the second liquid, the single probe is controlled t...
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IPC IPC(8): G01F23/26
CPCG01F23/26
Inventor 丁伟王卫佳
Owner MACCURA MEDICAL INSTR CO LTD