CN111644217A - Adjusting operation method of liquid transfer device - Google Patents
Adjusting operation method of liquid transfer device Download PDFInfo
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- CN111644217A CN111644217A CN202010557857.9A CN202010557857A CN111644217A CN 111644217 A CN111644217 A CN 111644217A CN 202010557857 A CN202010557857 A CN 202010557857A CN 111644217 A CN111644217 A CN 111644217A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/02—Burettes; Pipettes
- B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
- B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
- B01L3/0237—Details of electronic control, e.g. relating to user interface
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Abstract
The invention discloses an adjusting operation method of a liquid transfer device, wherein an adjusting knob of the liquid transfer device is uniformly divided into a plurality of divisions in the circumferential direction, a rotation degree signal is triggered when the knob rotates one division, and a rotation degree trend signal is triggered when a set number of rotation degree signals are continuously generated within a preset time; the rotation signal and the rotation degree trend signal mutually assist in adjusting parameter setting and operation interface switching of the pipettor. The adjusting operation method of the pipettor can well realize the functions of capacity one-by-one adjustment, capacity continuous adjustment, interface unlocking, shortcut key operation, menu selection and parameter configuration, pipetting execution operation and the like, is quick and convenient to operate, and accords with ergonomics.
Description
Technical Field
The invention relates to the technical field of pipettors, in particular to an adjusting operation method of an electronic pipettor.
Background
The pipettor can perform operations such as liquid removal, distribution, mixing and the like, and is one of the most common devices in biochemical laboratories. Benefiting from the application of technologies such as motor control, sensor, micro-processing chip for electric pipettor compares traditional manual pipettor and has numerous advantages, and its apparent advantage is: the electric pipettor is controlled by a program, and the electric motor drives the piston, so that the automation of the pipetting process is basically realized, the muscle fatigue degree of personnel is greatly reduced, and the pipetting accuracy, stability and consistency can be ensured. To meet different experimental requirements, electric pipettors provide numerous pipetting modes, such as: forward pipetting, reverse pipetting, multiple dispensing, sequential dispensing, dilution, titration, multiple pipetting, and the like, while each mode comprises parameter options of capacity adjustment, pipetting/dispensing speed adjustment, mixing capacity and mixing times adjustment, dispensing times adjustment, orifice plate guide indication, pipetting times indication, history display, and the like in part or in whole.
Along with the increasing functions of electric pipettors, the operation is complex and difficult to master, and particularly, the pipettors are used as test instruments operated by one hand, and the pipettors are expected to be simply and conveniently operated by the thumbs of the pipettors held by one hand and do not cause fatigue of personnel; however, since the range of the pipetting capacity of the pipettor is large and the single-time capacity variable is small, it is time-consuming and labor-consuming to obtain any value within the range of the capacity quickly and conveniently. The liquid transfer device has the operations of liquid transfer, liquid separation, mixing, menu parameter configuration and the like, and the existing liquid transfer device is complex in operation mode and not in accordance with human engineering, so that a lot of troubles are brought to experimenters.
A pipette adjustment wheel as provided in chinese patent document CN 104185509B; the technical solution is that the adjustments made gradually or very slowly and on the other hand the adjustments made rapidly and particularly with acceleration can be separated in the same component, becoming separate individual events, making it possible to achieve slow and fast capacity changes, but the capacity changes of this solution are continuous, in actual use, the capacity changes, both fast and slow, will be greater than the human response speed, making it difficult to reach the target adjustment value by one adjustment, and therefore it is necessary to make adjustments of the capacity one by one, the operating mode is that the adjustment wheel needs to be rotated first, then has to be released quickly, the corresponding readings change once, which is obviously time and labor consuming, and the user's functional need for convenient capacity one by one adjustment is urgent and urgent; the knob structure of the adjustment wheel is furthermore very complex.
Chinese patent document CN105233895B provides a combination knob and an electric pipette including the same. The combined knob comprises two independent knobs, a parameter knob and a function switching knob; obviously, the functions realized in this way are not only cumbersome to operate but also free of fast capacity adjustment function, and the structure of the scheme is quite complex;
the electric pipette with the track ball provided by chinese patent document CN205886920U uses the track ball mode as an operation input; it is clear that the trackball has no fast volume adjustment function; in addition, the trackball is difficult to operate and control in a single-hand holding state, which is not in accordance with human engineering and inevitably causes complex structure;
the method for adjusting pipette parameters according to the invention of chinese patent document CN106622418A has a drawback that although the number of times of knob rotation can be reduced to obtain the target volume when adjusting the volume in a wide range by increasing the adjustment amount of a single time, it is difficult to grasp how many turns the knob needs to be rotated, how many rotation speeds the knob needs to be rotated, and the volume value to be adjusted by the operation.
There is therefore currently no good solution for meeting the operational requirements of the above pipettors; therefore, the present inventors have earnestly demanded to conceive a new technology to improve the problems thereof.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects of the existing pipettors in the operation method, and further provide a pipette parameter adjustment operation method.
In order to achieve the purpose, the invention adopts the following technical scheme:
an adjusting operation method of a liquid transfer device is characterized in that an adjusting knob of the liquid transfer device is evenly divided into a plurality of divisions in the circumferential direction, a rotation degree signal is triggered when the knob rotates one division, and a rotation degree trend signal is triggered when a set number of rotation degree signals are continuously generated within a preset time; the rotation signal and the rotation degree trend signal mutually assist in adjusting parameter setting and operation interface switching of the pipettor.
Preferably, when the knob rotates one graduation, the current rotating direction and the triggering time are recorded and compared with the adjacent last rotating graduation; if the rotation is in the same direction and the triggering time difference is smaller than the preset value, effective rotary graduations are accumulated step by step, and when the number of the accumulated graduations is larger than a threshold value, a rotary trend signal is triggered.
Preferably, the rotation degree signal includes a forward rotation degree signal and a reverse rotation degree signal, and the rotation degree trend signal includes a forward rotation degree trend signal and a reverse rotation degree trend signal.
Preferably, the rotation rate trend signal is triggered when two or more rotation rate signals generated continuously end or when a rotation motion for generating two or more rotation rate signals ends.
Preferably, the number of divisions and the time interval of the trigger rotation degree trend signal are adapted to the parameter setting or the operation interface switching in the corresponding operation mode.
Preferably, the time required for triggering the rotation degree trend signal is inversely proportional to the absolute value of the corresponding parameter adjustment change after triggering the rotation degree trend signal.
Preferably, after the rotation degree trend signal is triggered, the corresponding parameter adjustment is increased or decreased according to the set speed regulation gradient according to the forward rotation or the reverse rotation.
Preferably, the change of the absolute value of the parameter increment triggered by the rotation degree trend signal is a uniform-speed change or a decreasing change.
Preferably, after the rotation degree trend signal is triggered, if the same-direction rotation degree signal or the rotation trend signal is triggered in the process of adjusting the change of the parameter value, the rotation degree trend signal is triggered again at the triggering point; in the process of adjusting the parameter value change, if a reverse rotation degree signal or a reverse rotation trend signal is triggered, the parameter change is stopped or the parameter change speed is slowed down at a trigger point.
Preferably, the absolute value of the parameter change in the unit time corresponding to the triggered rotation trend signal is reduced to 0 within the set time or within the set change amount.
Preferably, the corresponding parameter adjustment amount changes at a constant speed after the rotation degree trend signal is triggered; if the same-direction turning degree signal is triggered again, the parameter adjusting speed is increased progressively; if the reverse rotation signal is triggered again, the parameter adjustment speed is decreased.
Preferably, the input termination signal after the rotation trend signal is triggered is used for finishing the rapid parameter adjustment in the rotation trend signal mode.
Preferably, the pipette further comprises a button, wherein the button is integrally arranged on the knob or is separately arranged on one side of the pipette body; the button generates a corresponding pressing control signal according to the pressing times or the pressing degree.
Preferably, the termination signal is one of a knob rotation or a button press.
Preferably, the knob is linked with an encoder in the pipettor, and pulses output by the encoder comprise two paths, namely an a path pulse and a B path pulse; when the knob rotates forwards, the phase of the A path of pulse leads the phase of the B path of pulse by a preset angle; when the knob rotates reversely, the phase of the A path pulse lags behind the B path pulse by a preset angle.
The invention has the beneficial effects that:
according to the adjusting operation method of the liquid transfer device, the rotation trend signal is introduced on the basis of normal rotation and indexing of the knob of the liquid transfer device, the knob of the liquid transfer device and the rotation trend signal are coordinated and matched with each other, and functions of capacity one-by-one adjustment, capacity continuous adjustment, interface unlocking, shortcut key operation function operation, menu selection and parameter configuration, liquid transfer execution operation and the like can be well realized under the condition that other buttons are not added.
In addition, the electric pipettor adopts a knob and a button in an operation mode, the holding method is the method closest to the manual pipettor operation knob and a pressing rod method, the functions of the knob and the button are consistent with those of the manual pipettor, and the operation mode is more easily accepted and widely used.
Drawings
In order that the present invention may be more readily and clearly understood, reference is now made to the following detailed description taken in conjunction with the accompanying drawings, in which:
fig. 1 is an electronic pipette adapted for use with a method of regulating operation of a pipette of the present application;
fig. 2 is a schematic circuit diagram of an encoder on a pipette;
FIG. 3 is a schematic diagram of waveforms generated by the rotation of the knob in conjunction with the encoder.
The reference numbers in the figures denote:
1-a pipette; 2-a knob; 3-push button.
Detailed Description
An adjusting operation method of a liquid transfer device is characterized in that the adjusting operation method is mainly innovated aiming at an adjusting method of a knob type electronic liquid transfer device knob and an adjusting mode of a button.
Referring to fig. 1, the adjusting knob 2 is preferably disposed at the upper end of the pipette 1, the knob is uniformly divided into a plurality of divisions in the circumferential direction, for example, 30 divisions in a circle, and each division is rotated to trigger a rotation signal; the rotation degree signals comprise rotation degree signals one by one and rotation degree trend signals; each rotation degree signal corresponds to one rotation division, and a rotation degree trend signal is triggered if a set number of rotation degree signals or accelerated rotation knobs are continuously generated within preset time; the rotation signal and the rotation trend signal assist in adjusting parameter setting and operation interface switching of the pipettor, and the rotation trend signal is mainly used for performing rapid volume adjustment or performing rapid interface switching of the pipettor after being triggered. According to the adjusting operation method of the liquid transfer device, the rotation trend signal is introduced on the basis of normal rotation and indexing of the knob of the liquid transfer device, the knob of the liquid transfer device and the rotation trend signal are coordinated with each other, and functions of capacity one-by-one adjustment, capacity continuous adjustment, interface unlocking, shortcut key operation function, menu selection and parameter configuration, liquid transfer execution operation and the like can be rapidly realized without adding other buttons.
As a preferred scheme, when the knob rotates one graduation, the current rotation direction and the trigger time are recorded and compared with the adjacent previous rotation graduation; if the rotation is in the same direction, and the triggering time difference is smaller than a preset value, effective rotation graduations are accumulated step by step, if the rotation is in the same direction, the difference value of the triggering time is smaller than the preset value, if M is assumed, the effective graduation times are accumulated, if the time difference value is larger than another preset value, N is assumed (the preset value N can be equal to the preset value M), or reverse rotation occurs, the times are reset, and when the accumulated number is larger than a threshold value, a rotation trend signal is generated. This time difference may be an algorithmically processed time difference. Considering that in actual operation, most of the time differences are smaller than the preset value M, but a very small time difference larger than the preset value M exists, it is obvious that the process is still the expression that the user expects to generate the rotation rate trend signal, and therefore, in order to improve the sensitivity and accuracy of identifying the trend signal and better user experience, various optimization algorithm processes can be performed on the time difference of which the trigger time difference is smaller than the preset value N, such as: one or more algorithms such as averaging and median filtering are carried out, and when the average value of the time difference after algorithm processing is smaller than a preset value M, a rotation degree trend signal is still triggered; meanwhile, in a setting menu, an option of sensitivity of an independent trend signal can be provided, and a user can adapt to the actual operation hand feeling.
The rotation degree signal of the pipette adjustment operation method in this embodiment includes a forward rotation degree signal and a reverse rotation degree signal, and the rotation degree trend signal includes a forward rotation degree trend signal and a reverse rotation degree trend signal. The forward direction mainly comprises the steps of increasing parameters or switching to the next interface; the reverse is mainly to reduce the parameters or return to the previous interface. The two are coordinated and matched with each other, so that countless combination schemes can be combined, and the operation of the existing pipettor is enough to be set. As for the setting of the forward direction and the reverse direction of the knob, the setting can be carried out according to the operation habit of experimenters, and the setting can also be carried out according to the special individual requirements.
Under the normal rotation speed, generating a rotation signal when rotating one division every time, and generating a left rotation signal when the knob rotates left; the knob is rotated rightwards, a right rotation degree signal is generated, and a system of the electronic pipettor can immediately respond to the operation aiming at the rotation degree signal; above the normal rotation speed, if the analysis result shows that a plurality of rotation signals are continuously generated in the same rotation direction and the time interval between the rotation signals is lower than a set value (the set value is set according to the pipetting accuracy and the pipetting capacity of pipettes of different models), a rotation trend signal is generated, if the knob rotates left, a left rotation trend signal is generated, and if the knob rotates right, a right rotation trend signal is generated; in order to improve the user experience, the system starts to respond to the rotation degree trend signal only when the time interval exceeds another threshold or no single rotation degree signal is triggered; of course, the rotation speed of the knob can be detected through a system of the liquid moving device, and if the conditions such as acceleration rotation and the like occur, the rotation trend signal can be directly triggered. The number of the rotation degree signals and the time interval threshold value between the rotation degree signals are adjusted, so that the rotation degree trend signals can be generated to be more in line with the operation habits of users; so that the possibility of false triggering is reduced, and the reliability of operation and the comfort of use of a user are improved.
The rotation rate trend signal of the present embodiment may be set to trigger when two or more rotation rate signals generated continuously end or when a rotation operation for generating two or more rotation rate signals ends. For example, if 10 divisions are rotated within the set time, a rotation trend signal may be triggered when 5 divisions are rotated, or a rotation trend signal may be triggered when 5 divisions are rotated, but the rotation trend signal is not triggered at this time, but is triggered again when the 10 divisions of the current rotation end the rotation, and the specific trigger time point may be set according to actual needs.
When the pipettor starts the quick capacity adjustment, the capacity is continuously changed to obtain the initial speed, if the user does not perform the trigger knob adjustment any more, the capacity change speed is slower and slower along with the increase of time until the pipette stops (if the limit capacity value is not reached); if during this deceleration the trigger knob is rotated, and if in the same direction, the continuously varying speed is restored to the original speed.
In the process of deceleration, if the knob is triggered to rotate again, if the knob rotates in the same direction, the rotation degree trend signal is excited again at the trigger point of the knob, so that the parameter adjustment is further accelerated, and the speed at the trigger point can be set as the initial speed; if the knob direction is reversed, the parameter adjustment change is immediately terminated. In other embodiments, the reverse rotation of the knob after the trend signal is triggered can be set to be slower or the parameter change speed can be reduced.
In other embodiments, the corresponding parameter adjustment amount after the rotation degree trend signal is triggered can also be set to be changed at a constant speed; if the same-direction turning degree signal is triggered again, the parameter adjusting speed is increased progressively; if the reverse rotation signal is triggered again, the parameter adjustment speed is decreased.
The time required for triggering the rotation degree trend signal in the embodiment is inversely proportional to the absolute value of the corresponding parameter adjustment change after the rotation degree trend signal is triggered. Defining the initial speed as the average of the time interval of each signal in the turning trend signal that triggers this continuous adjustment is inversely proportional, that is, if you rotate faster, the shorter the time interval between the signals, the faster the initial speed of the continuous adjustment; the performance of the practical application is that the capacity continuous adjustment is also triggered, but the initial change speed of the capacity is related to the rotation speed.
In the process of quickly adjusting the capacity, the speed is increased to be naturally stopped, and the value of the preferred capacity is presented by a multiple of 5 when the value is finished; decelerating to stop, wherein the deceleration mode can be according to time or capacity, and the tail of the number is 0 or 5; this has the advantage that the natural stop 5 or 0 is a common number for pipetting volumes and facilitates the subsequent value-by-value adjustment of the precise volume in steps. The continuous capacity adjustment in a speed reduction mode has better practicability in practical application and is closer to the capacity adjustment intention; because the speed reduction effect is achieved and the speed reduction can be stopped, the speed reduction process can easily observe the reading, and the operation is convenient; the deceleration is only a range or duration, avoiding inadvertent reading to the end.
In addition, after the rapid capacity adjustment is started (i.e. the rotation trend is triggered), the continuous capacity change provides an initial constant speed (generally, the speed is relatively low), and as long as the termination operation is not performed, the operation is stopped at the constant speed until the capacity limit value is reached, or the operation is stopped when the set increment or decrement is reached; when the user rotates in the same direction, the speed is increased, and when the user rotates in the opposite direction, the speed is reduced; the operation can be performed by clicking the independent key or rotating the trend signal in the opposite direction.
The setting of the rotation rate trend signal of the embodiment is triggered when the continuously generated rotation rate signals are finished, and the setting mode can better ensure the accuracy of operation. For example, the rotation trend signal set by the pipette system is generated by 3 indexing rotations, but one quick rotation of the client may generate 6 rotations or more, which cannot be controlled, so that the rotation trend signal can be responded after the continuous process is finished; that is, when the user rotates 3 times, the system software already recognizes the trend signal, and at this time, the system software can respond by waiting for the end of the user operation. Otherwise, if 3 are satisfied, the response is immediate, then the next consecutive 3 will result in subsequent adjustment actions, such as: if the way to adjust the capacity is to trigger a fast speed adjustment followed by a speed adjustment by turning the knob, it is clear that the first 3 are producing the accuracy trend signal and the last 3 are up-regulating the speed by 3 steps.
The liquid transfer device adapted to the liquid transfer device adjusting operation method is further provided with a button 3, the button 3 is preferably integrated with the knob, namely the upper end of the knob 1 is a pressing surface of the button 3, and the knob can be pressed downwards to complete a pressing action and can also rotate circumferentially to complete a rotating action. In other embodiments, the button may be separately disposed at a position on a screen side of the pipette convenient for pressing by a thumb or other fingers, as long as the button is convenient for one-handed operation of touching by a certain finger to realize pressing operation, preferably convenient for touching by a thumb; the button generates a corresponding pressing signal according to the pressing times or the pressing degree. The pressing operation of the button comprises that one click signal is generated by pressing once, a double click signal is generated by pressing twice, and a long press signal is generated by long pressing. Three pressing signals can be generated by pressing three times, four pressing signals can be generated by pressing four times and the like according to the specific function setting of the pipettor, and corresponding operation steps can be correspondingly set according to different pressing signals. The number of the functions corresponding to the button pressing signal can be set according to the number of the functions of the pipettor.
The click signal, the long-press signal and the double-click signal generated by the button of the embodiment preferably correspond to the actions of 'confirming', 'returning to the previous stage' and 'withdrawing the pipette tip' in the parameter adjustment process of the pipette respectively.
Through the combination of the rotation degree signal and the pressing signal provided by the pipette knob and the independent button, various combined operation modes of pipette parameter adjustment, interface switching and capacity adjustment can be realized. Further, the functions of adjusting the pipetting capacity one by one, continuously adjusting the capacity, unlocking an interface, operating a shortcut key function, selecting a menu and configuring parameters, performing pipetting execution operation and the like can be completed; under different interfaces, the system can partially or completely support the knob event and the independent button event, and the preferred operation method is described as follows:
1. unlocking and menu selection, setting operations
When the electric pipettor is in a state of only responding to pipetting operation such as a main interface, a user triggers a rotation rate trend signal once, and the electric pipettor can be used for unlocking and entering a parameter selection and setting state; then continuously triggering a single rotation signal to circularly select a parameter item and indicate the parameter item as a current selected item in a reversed color mode by the liquid moving device; generating a click signal through click pressing of an independent button, entering an adjustment state of a current option and indicating that the current option is in the adjustment state by flashing; the rotation degree signals are triggered one by one through the adjustment of the knobs one by one, and parameters are adjusted; confirming the parameter setting and quitting the state selected by the adjusting state value through the single click action of the independent button; and returning to the main interface through the long pressing action of the independent button, wherein the long pressing action time is determined according to the operation habit of the user.
2. Capacity modulation operation
When the pipettor is in a capacity adjusting state, the pipetting capacity can be adjusted by rotating the knob at a constant speed; or directly triggering a rotation degree trend signal to continuously adjust the capacity, and then triggering a rotation degree signal along the same direction, increasing the adjusting speed of the set threshold value at the current capacity adjusting speed, and if triggering a rotation degree signal in the opposite direction, decreasing the adjusting speed of the set threshold value at the current capacity adjusting speed. If the difference value between the target capacity and the current capacity is not very large, the knob triggers a rotation degree signal, and the capacity changes by an increment every time a rotation degree signal is generated (namely, every time the knob rotates by one graduation), so that a user can still adopt a mode of matching slow rotation with normal speed rotation according to the current capacity difference value, and the control is fast and sensitive to obtain the optimal interactivity when the vision and the rotary touch feedback are combined; when large-scale capacity adjustment is needed, the user instinctively rotates the knob in an accelerating way, so that a rotation degree trend signal is triggered naturally to execute continuous capacity adjustment; at the moment, a user only needs to observe the capacity value of the screen without rotating a knob, and after the target capacity is reached, a rotation degree signal opposite to the current rotation direction is triggered or a button is directly pressed to generate a click signal so as to terminate the continuous capacity adjustment.
In order to achieve better continuous adjustment effect and user experience, the following available schemes are selected: once entering continuous capacity adjustment, increasing the adjustment speed at the current continuous capacity adjustment speed when a rotation signal is triggered in the same direction; and each time the rotation signal is triggered in the opposite direction, the adjusting speed is decreased at the current continuous capacity adjusting speed. The incremental and decremental speed values may be preset in the pipette system.
The speed of continuous capacity adjustment is directly proportional to the time interval of adjacent rotation degree signals after the rotation degree trend signal is triggered; the increment of the continuous capacity adjustment is inversely proportional to the time interval of the adjacent rotation rate signal after the rotation rate trend signal is triggered. This arrangement can facilitate rapid adjustment of the pipetting capacity of the pipettor.
Further, a capacity adjustment deceleration interval is set after the continuous capacity adjustment speed is set, the capacity adjustment speed at the ending time point of the capacity adjustment deceleration interval is 0, that is, after the continuous speed adjustment reaches a predetermined speed value, if no other trigger signal exists, the capacity is adjusted from the high speed to the speed of 0 in the preset deceleration interval, that is, the capacity reaches a specific value at this time.
The forward rotation signal, the reverse rotation signal, the forward rotation trend signal, and the reverse rotation trend signal of the knob, and the click signal, the double click signal, the long press signal, etc. of the button of the embodiment may also be set to correspond to different event directions on different pipette adjustment interfaces, for example, in different pipette modes, when a specific pipette step is executed, a user is required to perform operation selection, at this time, the forward rotation trend signal may be corresponding to a "YES/YES" option, and the reverse rotation trend signal may be corresponding to a "NO/NO" option. The operation method is clear at a glance, and adopts a trend signal, so that the operation method has the capability of preventing false touch; in addition, depending on the level of protection against false touches of the operation, the conditions triggered by the trend signal may be reduced, for example by reducing the number of turns in the same direction or by increasing the time interval. The forward rotation degree signal, the reverse rotation degree signal, the forward rotation degree trend signal, the reverse rotation degree trend signal, and the specific corresponding operation commands of the button, such as the click signal, the double click signal, the long press signal, etc., are not limited, and the above is only a preferred scheme.
As for the acquisition method of the trend signal of the present application, there are several forms, and the acquisition method of the rotation degree trend signal is described in detail below: the knob is in an encoder mode, referring to fig. 2 and 3, an encoder hardware circuit is shown in fig. 1, a waveform generated by linkage rotation of the knob and the encoder is shown in fig. 2, the rotation direction of the knob can be obtained according to the phase relation of A, B, if the knob is rotated forwards, the phase A output is advanced by 90 degrees from the phase B, and if the knob is rotated backwards, the phase A lags by 90 degrees from the phase B. The knob of the type can generate 30 divisions when rotating one circle, and the capacity can change by 30 increments when rotating one circle under the condition of triggering by rotation degree signals one by one; when a rotation signal is generated, the rotation direction and the trigger time of the rotation process are obtained and compared with the previous rotation process, if the rotation direction is the same, the difference value of the trigger time is smaller than a preset value M, the effective indexing times are accumulated, if the time difference value is larger than another preset value N (the preset value M can be equal to the preset value N), or reverse rotation occurs, the times are cleared, and when the accumulated number is larger than a threshold value, a rotation trend signal is generated. This time difference may be an algorithmically processed time difference. Considering that in actual operation, most of the time differences are smaller than the preset value M, but a very small time difference larger than the preset value M exists, it is obvious that the process is still the expression that the user expects to generate the rotation rate trend signal, and therefore, in order to improve the sensitivity and accuracy of identifying the trend signal and better user experience, various optimization algorithm processes can be performed on the time difference of which the trigger time difference is smaller than the preset value N, such as: one or more algorithms such as averaging and median filtering are carried out, and when the time difference after algorithm processing is smaller than a preset value M, a rotation degree trend signal is still triggered; meanwhile, in a setting menu, an option of sensitivity of an independent trend signal can be provided, and a user can adapt to the actual operation hand feeling. If the default value M is 20ms, the default value N is 50ms, and the time difference values of the consecutive 5 rotation degrees are respectively 16ms, 18ms, 21ms, 18ms, and 19M (ms represents ms), the time difference value 21ms of the third division is greater than 20ms of the default value M and is smaller than 50ms of the default value N, and the rotation degree signal is authorized to be triggered in this case. Of course, in other embodiments, 21ms may be filtered out by filtering techniques.
According to the invention, through introducing the rotation trend signal to the rotation condition of the knob, the functions of capacity one-by-one regulation, capacity continuous regulation, interface unlocking, shortcut key operation function operation, menu selection and parameter configuration, liquid transfer execution operation and the like can be well realized in a mode of not adding other buttons; the knob and the button used on the electric pipettor are the closest to the manual pipettor operation knob and the pressing rod method in the operation mode and the holding method, the functions of the knob and the button are consistent with those of the manual pipettor, and the operation mode is more easily accepted and widely used.
In other embodiments, the button may be provided separately and may be configured to activate the pipetting function in its most essential function, equivalent to pressing a lever of a manual pipette; it can also be used for matching the selection configuration of the menu, and the termination operation, confirmation operation and so on when the capacity is adjusted continuously; in addition, under the liquid transferring standby state, the suction head can be triggered to withdraw from the liquid transferring device by double-clicking the button.
The above embodiments are merely to explain the technical solutions of the present invention in detail, and the present invention is not limited to the above embodiments, and the technical solutions related to the present invention are not only applicable to the knob operation mode of the electric pipette; all instruments with knobs should be covered. It will be appreciated by those skilled in the art that various modifications and alternatives to those embodiments will be apparent from and elucidated with reference to the principles and spirit of the invention as described herein.
Claims (15)
1. An adjustment operation method for a pipette, characterized by comprising: an adjusting knob of the pipettor is uniformly divided into a plurality of divisions in the circumferential direction, and when the knob rotates one division to trigger one rotation degree signal, a rotation degree trend signal is triggered if a set number of rotation degree signals are continuously generated within a preset time; the rotation signal and the rotation degree trend signal mutually assist in adjusting parameter setting and operation interface switching of the pipettor.
2. The method of regulating operation of a pipette according to claim 1, characterized in that: when the knob rotates one graduation, the current rotating direction and the triggering time are recorded and compared with the adjacent last rotating graduation; if the rotation is in the same direction and the triggering time difference is smaller than the preset value, effective rotary graduations are accumulated step by step, and when the number of the accumulated graduations is larger than a threshold value, a rotary trend signal is triggered.
3. The method of adjusting operation of a pipette according to claim 1 or 2, characterized in that: the rotation degree signals comprise forward rotation degree signals and reverse rotation degree signals, and the rotation degree trend signals comprise forward rotation degree trend signals and reverse rotation degree trend signals.
4. The method of adjusting operation of a pipette according to claim 3, characterized in that: the rotation degree trend signal is triggered when more than two rotation degree signals generated continuously end or when the rotation action of generating more than two rotation degree signals is driven to end.
5. The method of regulating operation of a pipette according to claim 4, characterized in that: and triggering the division number and the time interval of the rotation degree trend signal to be matched with the parameter setting or the operation interface switching under the corresponding operation mode.
6. The method of adjusting operation of a pipette according to any one of claims 1 to 5, characterized in that: the time required for triggering the rotation degree trend signal is inversely proportional to the absolute value of the corresponding parameter adjustment change after the rotation degree trend signal is triggered.
7. The method of adjusting operation of a pipette according to any one of claims 1 to 6, characterized in that: and after the rotation degree trend signal is triggered, the corresponding parameter adjustment is increased or decreased progressively according to the set speed regulation gradient according to the forward rotation or the reverse rotation.
8. The method of regulating operation of a pipette according to claim 7, characterized in that: and the change of the absolute value of the parameter increment triggered by the rotation degree trend signal is uniform speed change or descending change.
9. The method of adjusting operation of a pipette according to claim 7 or 8, characterized in that: after the rotation degree trend signal is triggered, if the same-direction rotation degree signal or the rotation trend signal is triggered in the process of adjusting the change of the parameter value, the rotation degree trend signal is triggered again at the trigger point; in the process of adjusting the parameter value change, if a reverse rotation degree signal or a reverse rotation trend signal is triggered, the parameter change is stopped or the parameter change speed is slowed down at a trigger point.
10. The method of adjusting operation of a pipette according to any one of claims 7 to 9, characterized in that: and after the rotation degree trend signal is triggered, the absolute value of the parameter change in the corresponding unit time is reduced to 0 value within the set time or within the set change according to the set change.
11. The method of adjusting operation of a pipette according to any one of claims 7 to 9, characterized in that: after the rotation degree trend signal is triggered, the corresponding parameter regulating quantity is changed at a constant speed; if the same-direction turning degree signal is triggered again, the parameter adjusting speed is increased progressively; if the reverse rotation signal is triggered again, the parameter adjustment speed is decreased.
12. The method of adjusting operation of a pipette according to any one of claims 1 to 11, characterized in that: and after the rotation degree trend signal is triggered, inputting a termination signal for finishing the rapid parameter adjustment in the rotation trend signal mode.
13. The method of adjusting operation of a pipette according to any one of claims 1 to 11, characterized in that: the button is integrally arranged on the knob or is independently arranged on one side of the pipette body; the button generates a corresponding pressing control signal according to the pressing times or the pressing degree.
14. The method of regulating operation of a pipette according to claim 13, characterized in that: the termination signal is one of a knob rotation or a button press.
15. The method of adjusting operation of a pipette according to any one of claims 1 to 14, characterized in that: the knob is linked with an encoder in the pipettor, and pulses output by the encoder comprise two paths, namely an A path pulse and a B path pulse; when the knob rotates forwards, the phase of the A path of pulse leads the phase of the B path of pulse by a preset angle; when the knob rotates reversely, the phase of the A path pulse lags behind the B path pulse by a preset angle.
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