WO2019109744A1

WO2019109744A1 - Control system and method for rotary table of sample analyzer, and sample analyzer

Info

Publication number: WO2019109744A1
Application number: PCT/CN2018/111040
Authority: WO
Inventors: 曾祥伟
Original assignee: 深圳市帝迈生物技术有限公司
Priority date: 2017-12-08
Filing date: 2018-10-19
Publication date: 2019-06-13
Also published as: CN107992103A; CN107992103B

Abstract

A control system of a rotary table and a sample analyzer. The system is based on a rotary table driven by a motor and comprises: a control unit (102) configured to receive a rotary table control instruction, convert the rotary table control instruction into a corresponding rotary table rotation parameter corresponding to the rotary table control instruction, and send the rotary table rotation parameter to an execution unit (104); the execution unit (104) configured to drive a rotary table driving unit (108) to rotate according to the rotary table rotation parameter; and a position sensor unit (106) configured to detect rotary table position information of the rotary table and send the information to the execution unit (104). The position sensor unit is provided with a plurality of trigger positions, and the trigger position move along with the rotary table in the rotation process of the rotary table. The execution unit (104) is further configured to determine whether the rotary table arrives at a specified position according to the rotary table position information, if yes, a rotary table control state parameter is modified into a motion completed state, and the control unit (102) is further configured to detect the rotary table control state parameter and return, under the condition of the motion completing state, prompt information that a motion is normally completed.

Description

Control system and method for a turntable for a sample analyzer, sample analyzer

【技术领域】[Technical Field]

The present invention relates to the field of medical device technology, and in particular to a control system and method for a turntable for a sample analyzer, and a sample analyzer.

【背景技术】【Background technique】

In medical instruments such as sample analyzers, especially immunoassays, precise control of the number of turns and angle of the turntable is required to rotate the sample to a preset position. However, during the high-speed rotation of the turntable, due to the inertia of the motion, etc., the position control of the turntable does not meet the requirements of accurate product processing. That is to say, for the movement of the turntable, the angular displacement is caused by the braking distance, the control precision is insufficient, the sample cannot accurately reach the preset position, and the detection efficiency is low.

In the prior art, there is real-time feedback of the position information of the turntable through the photoelectric encoder, thereby realizing the closed-loop control of the turntable, thereby improving the precision of the position control of the turntable and ensuring the real-time performance of the control system. However, in this scheme, the process of controlling the turntable does not take into account the influence of the braking distance caused by the inertia, because from the issue of the command to the stop motion of the turntable, the position of the turntable is caused by the influence of the braking distance. There is a certain degree of angular offset in the control, especially in the case of a large load on the turntable, the angular offset is more serious.

In the long-term research and development process, the inventor of the present application found that in the related technical solutions, the control of the turntable has the problems of insufficient accuracy and inaccurate positioning.

【发明内容】 [Summary of the Invention]

The technical problem to be solved by the present invention is to provide a turntable control system and method for a sample analyzer, and a sample analyzer, which can improve the accuracy of the control of the turntable positioning.

In order to solve the above technical problems, one technical solution adopted by the present invention is to provide a control system for a turntable for a sample analyzer.

The system is based on a motor-driven turntable, the system comprising a control unit, an execution unit, a position sensor unit, a turntable drive unit, wherein:

The control unit is configured to receive a turntable control command, and convert the received turntable control command into a turntable rotation parameter corresponding to the received turntable control command, where the turntable rotation parameter includes a number of rotation steps and a rotation direction, The turntable rotation parameter is sent to the execution unit;

The execution unit is configured to drive the turntable driving unit to rotate according to the number of rotation steps and the rotation direction after receiving the turntable rotation parameter sent by the execution unit;

The position sensor unit is configured to detect the position information of the turntable of the turntable, and send the position information of the turntable to the execution unit, where the position sensor unit is provided with a plurality of trigger bits, and the process of rotating the turntable The trigger bit set on the position sensor unit is moved along with the turntable;

The execution unit is further configured to determine, according to the position information of the turntable, whether the turntable reaches a designated position corresponding to the turntable control instruction, and if the turntable reaches a designated position corresponding to the turntable control instruction, The dial control state parameter is modified to an action completion state;

The control unit is further configured to detect the turntable control state parameter, and return the prompt information that the action is normally completed if the detected turntable control state parameter is an action completion state.

The control unit is further configured to detect the turntable control state parameter, and return the prompt information that the action is normally completed if the detected turntable control state parameter is an action completion state;

Wherein, the turntable control instruction includes a target storage bit and a target work bit;

The control unit is further configured to determine, as the number of rotation steps, a trigger bit that needs to be rotated according to the target storage bit and the target work bit;

The execution unit is further configured to determine whether the number of rotation steps is greater than or equal to a preset step threshold; if the number of rotation steps is greater than or equal to the threshold of the step, according to a preset acceleration and deceleration Determining, by the strategy, a first rotational speed policy corresponding to the number of rotation steps; and determining, in the case that the number of rotation steps is less than the threshold of the step, according to a sum of the number of rotation steps and a preset step period value a second rotation speed strategy corresponding to the number of rotation steps; controlling the rotation of the dial according to the number of rotation steps, the rotation direction, and the first rotation speed strategy/second rotation speed strategy.

In order to solve the above technical problem, a technical solution adopted by the present invention is to propose a control method for a turntable for a sample analyzer.

The method includes:

Receiving a turntable control command;

Determining, according to the turntable control instruction, a turntable rotation parameter corresponding to the turntable control instruction, where the turntable rotation parameter includes a number of rotation steps and a rotation direction;

Rotating according to the number of rotation steps and the rotation direction control dial, and simultaneously detecting the position information of the turntable of the turntable by the position sensor, determining whether the turntable reaches the control command corresponding to the turntable according to the detected position information of the turntable a specified position, the position sensor is provided with a plurality of trigger bits, and the trigger bit set on the position sensor moves along with the turntable during the rotation of the turntable;

When the turntable reaches a designated position corresponding to the turntable control command, determining that the turntable control state parameter is an action completion state;

When the dial control state parameter is the operation completion state, the prompt information that the operation is normally completed is returned.

In order to solve the above technical problem, a technical solution adopted by the present invention is to propose a sample analyzer.

Wherein the sample analyzer comprises:

a control system of a turntable and a turntable connected to the turntable, wherein the turntable is provided with a storage bit; the turntable control system comprises a control unit, an execution unit, a position sensor unit, and a turntable drive unit, wherein:

The beneficial effects of the present invention are: different from the prior art, the turntable control system of the present invention converts the turntable control command into a corresponding number of rotation steps, and then controls the turntable drive unit to rotate according to the number of rotation steps, and according to the position The sensor unit detects the position of the turntable to determine whether the turntable reaches the position corresponding to the turntable control command, and only if the turntable reaches the designated position, the dial control state parameter of the turntable that successfully marks the turntable operation is modified. In order to complete the state of the action, the information that the action is normally completed is not returned in the case where the turntable does not normally complete the turning operation of the turntable. In the above manner, the invention improves the accuracy of confirming the position information of the turntable during the rotation of the turntable by detecting and feeding back the position of the turntable by the position sensor unit, thereby improving the precision of the turntable control.

【附图说明】 [Description of the Drawings]

1 is a schematic structural view of a control system of a turntable for a sample analyzer in an embodiment;

2 is a schematic structural view of a turntable in an embodiment;

3 is a schematic structural view of a control unit in an embodiment;

4 is a schematic flow chart of a method for controlling a turntable for a sample analyzer in an embodiment;

5 is a schematic flow chart of a method for controlling a turntable for a sample analyzer in an embodiment;

Figure 6 is a schematic view showing the structure of a sample analyzer in one embodiment.

【具体实施方式】【Detailed ways】

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In order to solve the technical problem that the accuracy of the control of the turntable positioning is insufficient in the prior art, in the present embodiment, a control system for a turntable for a sample analyzer and a sample analyzer for the sample analyzer are proposed. The control method of the turntable.

It should be noted that, in this embodiment, the implementation of the control system of the turntable and the control method of the turntable are based on a turntable driven by a motor, that is, the motor drives the rotation of the turntable, or the motor is a turntable. The drive unit is powered. Further, in the embodiment, the control of the turntable system also requires the implementation of a computer, for example, a computer control system is integrated in the turntable, or a single-chip microcomputer that can control the computer is integrated in the turntable. That is, the control system of the above-described turntable and the control method of the turntable are all based on a computer system.

Further, the turntable is a turntable for a sample analyzer, especially a turntable for an immunoassay analyzer.

Specifically, in this embodiment, as shown in FIG. 1, the control system of the above-mentioned turntable includes a control unit 102, an execution unit 104, and a position sensor unit 106, wherein the control unit 102 is used for controlling the turntable system and receiving the command. And the issuing, including the control of the motor, the executing unit 104 is configured to execute the specific command issued by the control unit 102, and drives the turntable to rotate, and the position sensor unit 106 is configured to detect and feed back the position of the turntable for the turntable. Acquisition of location information or location information.

In a specific embodiment, the rotation of the turntable is driven by a turntable drive unit, which may also include a turntable drive unit 108.

Specifically, the control unit 102 is configured to receive a turntable control command, and convert the received turntable control command into a turntable rotation parameter corresponding to the received turntable control instruction, where the turntable rotation parameter includes a number of rotation steps and a rotation direction, and the turntable is rotated. The parameters are sent to the execution unit.

The executing unit 104 is configured to drive the turntable driving unit 108 to rotate according to the number of rotation steps and the rotation direction after receiving the turntable rotation parameter sent by the execution unit.

In this embodiment, the turntable control command is an instruction to control the turntable to rotate, and includes relevant position information that the turntable needs to be rotated. For example, the turntable control command may be “starting the turntable to move the M number storage position to the N working position” . In another alternative embodiment, the turntable control instructions may also be generated by the control module 102 itself, for example, after receiving the relevant requirements of the user input.

As shown in FIG. 2, a schematic view of the turntable is shown in FIG. 2, and the number S1 shows a storage position on the turntable, for example, a position where the reaction cup is placed on the turntable, and rotates along with the turntable during the rotation of the turntable; The number S2 is shown as a work position (or station), and the work position is a fixed position outside the turntable, for example, it can be a throwing cup position, in which the cuvette can be thrown out from the turntable. The turntable control command may describe moving a certain memory bit M of the turntable to a position corresponding to a fixed work bit N, that is, the memory bit M is a target storage bit, and the work bit N bits is a target work bit.

Further, in the embodiment, the turntable control command further includes a requirement or a parameter related to the speed during the rotation of the turntable. For example, in the turntable control command, the start switch can also be defined at the specified speed S. The M number storage position moves to the N working position", that is, the rotation speed of the turntable is specified.

It should be noted that, in this embodiment, at least one storage bit and at least one working bit are included on the turntable device or on the entire device including the turntable (the storage bit or the work position may be only one on the turntable or outside the turntable) a virtual location or a point), wherein the number of storage bits and the number of working bits are not necessarily equal, that is, the number of storage bits may be greater than, or equal to, or less than the number of working bits, depending on the turntable device The specific needs are set.

In this embodiment, after receiving the turntable control command, the control unit parses the received turntable control command, determines a turntable rotation parameter corresponding to the turntable control command, or converts the received turntable control command. The command includes a specific turntable rotation parameter so that the execution unit can directly rotate according to the turntable rotation parameter drive dial.

The turntable rotation parameter includes the number of rotation steps and the rotation direction, wherein the number of rotation steps may be the number of steps of the stepping motor or the number of trigger bits corresponding to the turntable. In a specific embodiment, in the case that the turntable control command is “starting the turntable to move the M number storage bit to the N working position”, the corresponding instruction including the turntable rotation parameter may be “starting the turntable counterclockwise” Directional motion X trigger bits". That is to say, in the turntable rotation parameter determined by the control unit, the rotation direction is counterclockwise, and the number of rotation steps is X trigger positions.

In a specific embodiment, as shown in FIG. 3, the control unit 102 includes a main control unit 1022 and a slave control unit 1024, wherein the main control unit is responsible for issuing instructions to the slave control unit, and the slave control unit is for master control. The instruction issued by the unit (the turntable control command) is parsed, and the received turntable control command is converted, the turntable rotation parameter corresponding to the turntable control command is determined, or the received turntable control command is converted to include the turntable rotation The command of the parameter is sent to the execution unit 104, and the drive wheel drive unit 108 is further driven by the execution unit 104 to rotate according to the corresponding rotation direction and the number of rotation steps in the rotation parameters of the turntable.

The position sensor unit 106 is configured to detect the turntable position information of the turntable and transmit the turntable position information to the execution unit 104.

In this embodiment, the position sensor unit is provided with a plurality of trigger bits. During the rotation of the turntable, the trigger bit rotates together with the turntable, and each time the turntable rotates a trigger bit, the position sensor unit outputs a trigger bit signal, and The trigger bit information is sent to the execution unit 104, and the execution unit 104 determines the carousel position information of the current carousel according to the trigger bit signal. Specifically, in order to improve the accuracy of positioning, the number of trigger bits is greater than the number of working bits or storage bits. For example, the number of trigger bits may be 2 times, or 3 times, or other multiples of the number of storage bits/working bits. Of course, in other alternative embodiments, the number of trigger bits may not be a multiple of the storage bits/working bits.

For example, there are 20 storage bits on the turntable, and the number of trigger bits of the position sensor unit is 80. To further improve the accuracy, the number of trigger bits can also be designed to be 160. The number of trigger bits depends on the accuracy of the device. For a device, the more the number of trigger bits, the higher the accuracy of the corresponding positioning control of the turntable.

Because the turntable is in the process of rotating, the current position of the target storage bit is determined according to the trigger bit. Therefore, when the turntable control command is converted, the control unit 102 includes the target storage bit and the target in the turntable control command. The work bit is converted into trigger bit information. That is, the control unit determines the trigger bit to be rotated as the number of rotation steps based on the target storage bit and the target work bit.

In this embodiment, after the control dial rotates according to the rotation parameters of the turntable, it is also required to detect whether the turntable has completed the corresponding rotation operation, and after the turntable is started to rotate, the control state parameter corresponding to the turntable of the turntable is set to run. Then, after detecting that the corresponding rotation operation is completed, the turntable control state parameter is modified to the action completion state. That is to say, according to the dial control state parameter, it can be determined whether the corresponding turning operation in the dial control command received by the control unit 102 is completed.

Specifically, after the position sensor unit detects the position information of the turntable and sends the information to the execution unit 104, the execution unit 104 is further configured to determine, according to the position information of the turntable, whether the turntable reaches the designated position corresponding to the turntable control command. As described above, the rotation parameter of the turntable includes the rotation direction and the number of rotation steps, and the number of rotation steps corresponds to the number of the trigger bits. Therefore, according to the position information of the turntable detected by the position sensor unit, the rotation of the turntable can be determined. The number of steps or the number of trigger bits that pass through the turntable can be determined.

The control unit 106 is further configured to detect the turntable control state parameter, and return the prompt information that the action is normally completed if the detected turntable control state parameter is the action completion state.

In this embodiment, after the position sensor unit detects the turntable position information and determines by the execution unit whether the turntable has reached the designated position corresponding to the turntable control command, if the execution unit determines that the turntable has arrived and the turntable control command Corresponding designated position, the turntable control state parameter is set to the action completion state. In this case, it indicates that the turntable has completed the corresponding rotation operation. In this case, if the control unit detects that the turntable control state parameter is When the action is completed, the prompt information of the normal completion of the action is returned to determine that the rotation operation of the turntable has been completed.

In the present embodiment, the control unit 106 detects the turntable control state parameter to determine whether the turn operation of the turntable has been completed. It should be noted that, in this embodiment, the detection of the dial control state parameter by the control unit may not be performed in real time, but is performed according to a preset time, for example, after the start dial starts to rotate, in a preset. After the time, the dial control state parameter is detected, that is, whether the dial rotates the specified rotation operation within a limited time; for example, when the 10s after the start rotation starts, the dial control state parameter is detected.

Specifically, in an embodiment, the control unit is further configured to: after the rotating the control dial according to the rotating step and the rotating direction, start a timer, where the timing of the timer reaches a preset time threshold In the case of detecting the turntable control state parameter; when the turntable control state parameter is the action completion state, returning the prompt information that the action is normally completed; if the turntable control state parameter is not the action completion state, Returns the fault message.

That is, if the execution unit does not complete the rotation operation specified by the control unit within the preset time, indicating that the position sensor unit is faulty or other components are faulty, in this case, the "fault prompt information" is reported to the control unit; The execution unit completes the rotation operation specified by the control unit, indicating that the instruction issued by the control unit is normally completed. In this case, the prompt message of “action normal completion” is reported to the control unit.

Optionally, in another embodiment, the turntable device may have a certain mechanical error, that is, after the execution unit drive dial drive unit rotates according to the rotation strategy specified in the turntable control command, there is still a certain machine. The mismatch error, in which case the mechanical mismatch error can be eliminated by compensating for the number of rotation steps.

Specifically, the executing unit 104 is further configured to obtain a pre-stored compensation step number, and control the rotation of the dial according to the compensation step number.

It should be noted that, for a given turntable device, the corresponding mechanical transfer error is fixed, or the mechanical mismatch error is fixed without significant mechanical wear and tear, therefore, During the initialization of the turntable device, the specific value of the mechanical transfer error of the current device can be determined, and the number of compensation steps that need to be compensated can be determined. That is to say, during the initialization of the device, the number of compensation steps of the current device can be determined and stored in a preset memory, or stored in the control unit, and can be read by the execution unit for driving the turntable in the execution unit. After the driving unit rotates according to the rotation parameter of the turntable, the turntable is controlled to rotate according to the number of compensation steps to eliminate the mechanical mismatch error existing in the device.

Generally speaking, in the process of high-speed rotation of the turntable, if the instruction of the control unit is suddenly received to stop the rotation, the braking distance caused by the mechanical inertia may cause the rotation stop position and the designated stop position. There is a certain error, that is, the brake problem of the turntable needs to be considered in advance.

In this embodiment, in order to further improve the accuracy of the rotational positioning, during the rotation of the turntable, an acceleration/deceleration strategy is performed on the rotational speed of the turntable, that is, the number of steps, and/or speeds that need to be rotated according to the turntable. After gradually increasing the speed of the turntable to a certain value, rotate at the speed, and then gradually reduce the speed of the turntable before the turntable stops rotating until the turntable speed drops to 0, the turntable just stops at the turntable The stop position specified in the control instruction.

Specifically, the execution unit is further configured to determine whether the number of rotation steps is greater than or equal to a preset step threshold; and if the number of rotation steps is greater than or equal to the threshold of the step, according to a preset acceleration and deceleration strategy Determining a first rotational speed strategy corresponding to the number of rotation steps; and if the number of rotation steps is less than the step threshold, determining and rotating according to a sum of the number of rotation steps and a preset step period value a second rotation speed strategy corresponding to the number of steps; controlling the rotation of the dial according to the number of rotation steps, the rotation direction, and the first rotation speed strategy/second rotation speed strategy.

It should be noted that, in the case of performing the above-mentioned acceleration/deceleration strategy, since the speed of the turntable needs to be accelerated and the speed is decelerated in advance, there is a certain requirement for the rotation stroke of the turntable, for example, the rotation stroke of the turntable is too short (ie, the rotation step) In the case where the number is too small, since the number of rotation steps is too small, the requirements for speed increase and early deceleration cannot be satisfied. Therefore, it is necessary to perform different acceleration/deceleration strategies according to the number of rotation steps.

Specifically, in this embodiment, a step threshold is preset, and the step threshold is a minimum step value of the dial performing the acceleration/deceleration strategy. In the case where the number of rotation steps determined according to the turntable control command is greater than the above-described step threshold, the condition for executing the acceleration/deceleration strategy is satisfied, and therefore, the acceleration/deceleration strategy corresponding to the current number of rotation steps, that is, the first rotation speed strategy is determined. The acceleration or time of acceleration, the maximum speed and the corresponding running time, the position or time point at which the deceleration starts, and the acceleration of the deceleration are included in the first rotational speed strategy.

In another embodiment, in the case that the number of rotation steps is too small, the rotary drive unit can be directly driven to rotate, or, in the number of rotation steps, the number of rotation steps corresponding to one rotation of the turntable is used as a new one. The number of steps is rotated, and the acceleration/deceleration strategy, that is, the second rotation speed strategy, is determined according to the new number of rotation steps.

In this embodiment, as shown in FIG. 4, the control method of the above-mentioned turntable includes the following steps:

Step S102: receiving a turntable control instruction;

Step S104: determining, according to the turntable control instruction, a turntable rotation parameter corresponding to the turntable control instruction, where the turntable rotation parameter includes a number of rotation steps and a rotation direction;

Step S106: controlling the turntable according to the number of rotation steps and the rotation direction, and simultaneously detecting the position information of the turntable of the turntable by the position sensor, and determining whether the turntable reaches the turntable according to the detected position information of the turntable. a specified position corresponding to the control instruction, wherein the position sensor is provided with a plurality of trigger bits, and the trigger bit set on the position sensor moves along with the turntable during the rotation of the turntable;

Step S108: determining that the turntable control state parameter is an action completion state when the turntable reaches a designated position corresponding to the turntable control command;

Step S110: When the dial control state parameter is the operation completion state, returning the prompt information that the operation is normally completed.

In an optional embodiment, in step S104: determining a turntable rotation parameter corresponding to the turntable control instruction according to the turntable control instruction, and further comprising: determining whether the number of rotation steps is greater than or equal to a preset step a threshold value; if the number of rotation steps is greater than or equal to the threshold of the step, determining a first rotation speed policy corresponding to the number of rotation steps according to a preset acceleration/deceleration strategy; And rotating the direction control dial to: rotate according to the first rotation speed strategy and the number of rotation steps and the rotation direction; and when the number of rotation steps is less than the threshold of the step, according to the Determining, by the sum of the number of rotation steps and the preset step period value, a second rotation speed strategy corresponding to the number of rotation steps; the controlling the rotation of the rotation wheel according to the number of rotation steps and the rotation direction is: according to the second rotation The speed strategy and the number of rotation steps and the direction of rotation control the turntable to rotate.

In an optional embodiment, after step S106: rotating according to the number of rotation steps and the rotation direction control dial, the method further includes: acquiring a pre-stored compensation step number, and controlling the dial according to the compensation step number Turn.

In another embodiment, after the rotation of the control dial according to the number of rotation steps and the rotation direction, a timer is started, and when the timing of the timer reaches a preset time threshold, the dial is detected. Controlling the state parameter; when the dial control state parameter is the action completion state, returning the prompt information that the action is normally completed; and returning the fault prompt information when the dial control state parameter is not the action completion state.

As shown in FIG. 5, FIG. 5 shows a flow chart of a method of controlling a turntable in one embodiment. That is, the main control unit 1022 issues a turntable control command, and after receiving the turntable control command issued by the main control unit, the control unit 1024 converts the received turntable control command into an instruction including the turntable rotation parameter, and It is sent to the execution unit 104, and then the execution unit performs a corresponding acceleration/deceleration strategy according to the rotation step according to the rotation parameter of the turntable, and sets the turntable control state parameter to the running state, and detects the position information of the turntable through the position sensor, and determines Whether to complete the number of rotation steps, and then execute the number of rotation steps corresponding to the number of compensation steps, and finally set the dial control state parameter to the action completion state. During this process, the control unit 1024 detects the dial control state parameter within a limited time. If the dial control state parameter is not modified to the action completion state when the time limit is reached, the rotation operation is considered to be failed, and the fault information is returned. The main control unit 1022, if the turntable control state parameter is modified to the action completion state within a limited time, determines that the rotation operation corresponding to the turntable control command has been executed, and returns the prompt information that the action is normally completed to the main control unit 1022. .

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of a sample analyzer in an embodiment, wherein the sample analyzer 10 includes:

a turntable 100 and a control system 200 for a turntable connected to the turntable 100. The turntable 100 is provided with a storage bit 110; the turntable control system 200 includes a control unit, an execution unit, a position sensor unit, and a turntable drive unit, wherein:

Further, the turntable control method controls the turntable system 200 to operate to rotate the turntable 100 in the sample analyzer 10 to move the cuvettes accommodated in the storage location 110 to a preset position. Further, the sample analyzer 10 can be any sample analyzer that needs to move the cuvette, especially an immunoassay analyzer that performs immunoassay on the sample.

Implementation of the embodiments of the present invention will have the following beneficial effects:

After adopting the control system and method of the above-mentioned turntable, in the process of rotating the turntable, the turntable control command is converted into a corresponding number of rotation steps, and then the turntable drive unit is controlled to rotate according to the number of rotation steps, and according to the position sensor unit The position of the turntable is detected to determine whether the turntable reaches the position corresponding to the turntable control command, and only when the turntable reaches the designated position, the dial control state parameter indicating whether the turntable has successfully completed the rotation operation is modified to the action The completion state is such that, in the case where the turntable does not normally complete the turning operation of the turntable, the information that the action is normally completed is not returned. That is to say, according to the invention, the position sensor unit detects and feedbacks the position of the turntable, thereby improving the accuracy of confirming the position information of the turntable during the rotation of the turntable, thereby improving the precision of the control of the turntable.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state hard disk Solid) State Disk (SSD) and so on.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims

A control system for a turntable for a sample analyzer, the system being based on a motor-driven turntable, characterized in that the system comprises a control unit, an execution unit, a position sensor unit, a turntable drive unit, wherein:

The control unit is configured to receive a turntable control command, and convert the received turntable control command into a turntable rotation parameter corresponding to the received turntable control command, where the turntable rotation parameter includes a number of rotation steps and a rotation direction, The turntable rotation parameter is sent to the execution unit;

The execution unit is configured to drive the turntable driving unit to rotate according to the number of rotation steps and the rotation direction after receiving the turntable rotation parameter sent by the execution unit;

The position sensor unit is configured to detect the position information of the turntable of the turntable, and send the position information of the turntable to the execution unit, where the position sensor unit is provided with a plurality of trigger bits, and the process of rotating the turntable The trigger bit set on the position sensor unit is moved along with the turntable;

The execution unit is further configured to determine, according to the position information of the turntable, whether the turntable reaches a designated position corresponding to the turntable control instruction, and if the turntable reaches a designated position corresponding to the turntable control instruction, The dial control state parameter is modified to an action completion state;

The control unit is further configured to detect the turntable control state parameter, and return the prompt information that the action is normally completed if the detected turntable control state parameter is an action completion state;

Wherein, the turntable control instruction includes a target storage bit and a target work bit;

The control unit is further configured to determine, as the number of rotation steps, a trigger bit that needs to be rotated according to the target storage bit and the target work bit;

The execution unit is further configured to determine whether the number of rotation steps is greater than or equal to a preset step threshold; if the number of rotation steps is greater than or equal to the threshold of the step, according to a preset acceleration and deceleration Determining, by the strategy, a first rotational speed policy corresponding to the number of rotation steps; and determining, in the case that the number of rotation steps is less than the threshold of the step, according to a sum of the number of rotation steps and a preset step period value a second rotation speed strategy corresponding to the number of rotation steps; controlling the rotation of the dial according to the number of rotation steps, the rotation direction, and the first rotation speed strategy/second rotation speed strategy.
The control system according to claim 1, wherein the execution unit is further configured to acquire a pre-stored compensation step number, and control the rotation of the turntable according to the compensation step number.
The control system according to claim 1, wherein the control unit is further configured to start a timer after the rotation of the control dial according to the number of rotation steps and the rotation direction, and the timing of the timer When the preset time threshold is reached, detecting the turntable control state parameter; when the turntable control state parameter is the action completion state, returning the prompt information that the action is normally completed; in the turntable control state parameter is not When the action is completed, the fault message is returned.
A control system for a turntable for a sample analyzer, the system being based on a motor-driven turntable, characterized in that the system comprises a control unit, an execution unit, a position sensor unit, a turntable drive unit, wherein:

The control unit is configured to receive a turntable control command, and convert the received turntable control command into a turntable rotation parameter corresponding to the received turntable control command, where the turntable rotation parameter includes a number of rotation steps and a rotation direction, The turntable rotation parameter is sent to the execution unit;

The execution unit is configured to drive the turntable driving unit to rotate according to the number of rotation steps and the rotation direction after receiving the turntable rotation parameter sent by the execution unit;

The position sensor unit is configured to detect the position information of the turntable of the turntable, and send the position information of the turntable to the execution unit, where the position sensor unit is provided with a plurality of trigger bits, and the process of rotating the turntable The trigger bit set on the position sensor unit is moved along with the turntable;

The execution unit is further configured to determine, according to the position information of the turntable, whether the turntable reaches a designated position corresponding to the turntable control instruction, and if the turntable reaches a designated position corresponding to the turntable control instruction, The dial control state parameter is modified to an action completion state;

The control unit is further configured to detect the turntable control state parameter, and return the prompt information that the action is normally completed if the detected turntable control state parameter is an action completion state.
The control system according to claim 4, wherein said turntable control command includes a target storage bit and a target work bit;

The control unit is further configured to determine, as the number of rotation steps, a trigger bit that needs to be rotated according to the target storage bit and the target work bit.
The control system according to claim 4, wherein the execution unit is further configured to determine whether the number of rotation steps is greater than or equal to a preset step threshold; wherein the number of rotation steps is greater than or equal to the step a first rotation speed policy corresponding to the number of rotation steps according to a preset acceleration/deceleration strategy; and in a case where the number of rotation steps is smaller than the step threshold, according to the number of rotation steps And determining, by a sum of the preset step period values, a second rotation speed strategy corresponding to the number of rotation steps; controlling the rotation of the dial according to the number of rotation steps, the rotation direction, and the first rotation speed strategy/second rotation speed strategy .
The control system according to claim 4, wherein the execution unit is further configured to acquire a pre-stored compensation step number, and control the rotation of the turntable according to the compensation step number.
The control system according to claim 4, wherein said control unit comprises a main control unit and a slave control unit.
The control system according to claim 5, wherein the number of target storage bits is not less than 20, and the number of the trigger bits is not less than 80.
The control system of claim 4 wherein said dial control command is generated by said control module.
The control system according to claim 4, wherein the control unit is further configured to start a timer after the rotation of the control dial according to the number of rotation steps and the rotation direction, and the timing of the timer When the preset time threshold is reached, detecting the turntable control state parameter; when the turntable control state parameter is the action completion state, returning the prompt information that the action is normally completed; in the turntable control state parameter is not When the action is completed, the fault message is returned.
The control system according to claim 11, wherein said control unit detects said dial control state parameter at a preset time after said dial is activated.
A method for controlling a turntable for a sample analyzer, comprising:

Receiving a turntable control command;

Determining, according to the turntable control instruction, a turntable rotation parameter corresponding to the turntable control instruction, where the turntable rotation parameter includes a number of rotation steps and a rotation direction;

Rotating according to the number of rotation steps and the rotation direction control dial, and simultaneously detecting the position information of the turntable of the turntable by the position sensor, determining whether the turntable reaches the control command corresponding to the turntable according to the detected position information of the turntable a specified position, the position sensor is provided with a plurality of trigger bits, and the trigger bit set on the position sensor moves along with the turntable during the rotation of the turntable;

When the turntable reaches a designated position corresponding to the turntable control command, determining that the turntable control state parameter is an action completion state;

When the dial control state parameter is the operation completion state, the prompt information that the operation is normally completed is returned.
The method for controlling a turntable according to claim 13, wherein the determining, after the dial rotation control parameter corresponding to the turntable control command according to the turntable control command, further comprises:

Determining whether the number of rotation steps is greater than or equal to a preset step threshold;

When the number of rotation steps is greater than or equal to the threshold of the step, determining a first rotation speed policy corresponding to the number of rotation steps according to a preset acceleration/deceleration strategy;

The rotating the control dial according to the number of rotation steps and the rotation direction is: controlling the rotation of the dial according to the first rotation speed strategy, the number of rotation steps, and the rotation direction.
The method for controlling a turntable according to claim 14, wherein the determining whether the number of rotation steps is greater than or equal to a preset step threshold further comprises:

When the number of rotation steps is less than the step threshold, determining a second rotation speed strategy corresponding to the number of rotation steps according to the sum of the number of rotation steps and the preset step period value;

The rotating the control dial according to the number of rotation steps and the rotation direction is: controlling the rotation of the dial according to the second rotation speed strategy, the number of rotation steps, and the rotation direction.
The method for controlling a turntable according to claim 13, wherein after the rotating the control dial according to the number of rotation steps and the rotation direction, the method further comprises:

Obtaining a pre-stored compensation step number, and controlling the rotation of the turntable according to the compensation step number.
The method of controlling a turntable according to claim 13, wherein the method further comprises:

After the rotation of the control dial according to the number of rotation steps and the rotation direction, a timer is started, and when the timing of the timer reaches a preset time threshold, the dial control state parameter is detected;

When the dial control state parameter is an action completion state, returning the prompt information that the action is normally completed;

When the dial control state parameter is not the action completion state, the fault prompt information is returned.
The method for controlling a turntable according to claim 13, wherein said determining a turntable rotation parameter corresponding to said turntable control command according to said turntable control command, said turntable rotation parameter comprising a number of rotation steps and a rotation direction :

The disk control command is parsed and converted to determine a turntable rotation parameter corresponding to the turntable control command.
The control method of a turntable according to claim 13, wherein the turntable control command comprises a target storage bit, and the number of the target storage bits is not less than 20, and the trigger bit of the position sensor unit The number is not less than 80.
A sample analyzer, comprising: a turntable and a control system of a turntable connected to the turntable, wherein the turntable is provided with a storage bit; the turntable control system comprises a control unit, an execution unit, Position sensor unit, turntable drive unit, wherein:

The control unit is configured to receive a turntable control command, and convert the received turntable control command into a turntable rotation parameter corresponding to the received turntable control command, where the turntable rotation parameter includes a number of rotation steps and a rotation direction, The turntable rotation parameter is sent to the execution unit;

The execution unit is configured to drive the turntable driving unit to rotate according to the number of rotation steps and the rotation direction after receiving the turntable rotation parameter sent by the execution unit;

The position sensor unit is configured to detect the position information of the turntable of the turntable, and send the position information of the turntable to the execution unit, where the position sensor unit is provided with a plurality of trigger bits, and the process of rotating the turntable The trigger bit set on the position sensor unit is moved along with the turntable;

The execution unit is further configured to determine, according to the position information of the turntable, whether the turntable reaches a designated position corresponding to the turntable control instruction, and if the turntable reaches a designated position corresponding to the turntable control instruction, The dial control state parameter is modified to an action completion state;

The control unit is further configured to detect the turntable control state parameter, and return the prompt information that the action is normally completed if the detected turntable control state parameter is an action completion state.