CN114906620A - Sample conveying system and control method thereof - Google Patents
Sample conveying system and control method thereof Download PDFInfo
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- CN114906620A CN114906620A CN202210575138.9A CN202210575138A CN114906620A CN 114906620 A CN114906620 A CN 114906620A CN 202210575138 A CN202210575138 A CN 202210575138A CN 114906620 A CN114906620 A CN 114906620A
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- 238000011016 integrity testing Methods 0.000 claims description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
- B65G51/08—Controlling or conditioning the operating medium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
- B65G51/08—Controlling or conditioning the operating medium
- B65G51/16—Controlling or conditioning the operating medium varying, e.g. starting or stopping, gas pressure or flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/04—Conveying the articles in carriers having a cross-section approximating that of the pipe or tube; Tube mail systems
- B65G51/36—Other devices for indicating or controlling movements of carriers, e.g. for supervising individual tube sections, for counting carriers, for reporting jams or other operating difficulties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0241—Quantity of articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/041—Camera
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
Abstract
The invention discloses a sample conveying system and a control method thereof, wherein the system comprises a sample input device, a sample output device, a pipeline for communicating the sample input device and the sample output device, a pneumatic source unit for outputting airflow to the pipeline, a motion detection unit for detecting motion data of a sample, a control unit for generating a deceleration control instruction based on the motion data, and a deceleration unit for performing deceleration control on the sample according to the deceleration control instruction. The method comprises the following steps: obtaining sample motion data; determining a deceleration device to be controlled based on the motion data; and generating a deceleration control instruction based on the motion data and sending the deceleration control instruction to the deceleration device to be controlled so as to control the corresponding deceleration device to perform deceleration control on the sample. According to the invention, the corresponding speed reduction control is carried out on the sample according to the motion data of the sample, so that the sample reaches the sample output device at a preset speed, and the sample is safely and reliably transmitted.
Description
Technical Field
The invention relates to the field of intelligent medical logistics, in particular to a sample conveying system and a control method thereof.
Background
With the construction of intelligent hospitals, hospitals adopt various devices to complete the transportation of materials, wherein the devices typically include medium-sized van logistics, pneumatic logistics transmission, hospital logistics robots, garbage bedding and clothing vacuum pipeline recycling and the like. Particularly, most of pneumatic logistics transmission adopts vacuum or compressed air, and a transmission bottle is used as a carrier, so that the purpose of automatically transmitting small medical supplies is realized, and the requirements of quick transmission of emergency articles in hospitals and safe transmission of sensitive articles in hospitals are met. The pneumatic typical structure generally comprises an air compressor, a transmitting and receiving station, a direction converter, a branch circuit, a receiving work station, a transmission bottle and the like. The pneumatic structure adopts pipelines with the diameter of 160mm, can realize the bidirectional transmission of the transmission bottles, has more complex pipeline control and scheduling, particularly needs the transmission bottles to transmit back and forth, and reduces the transmission timeliness of articles.
For example, blood sampling assay testing is a relatively common practice in the hospitalization of people. However, blood sample transport is typically a one-way transport process from a blood collection center to a blood testing assay center. Most blood samples in hospitals are transported by manual, conveying line or pneumatic transportation of transport bottle carriers at present. There are two manual transmission modes, and the sampling person or the full-time person takes the blood test center. The transfer chain transmission adopts the industrialization transfer chain can accomplish the conveying to blood sample, but the earlier stage construction is great and the corresponding cost is big more far away, and the process has certain noise simultaneously. Full-time staff carries, and the occasion that is not intensive and quantity is low at blood collection mostly, but the uncertainty of repeatability and transportation process is not fit for the wisdom hospital construction theory that now.
Disclosure of Invention
The present invention addresses one or more of the above-identified problems in the art and provides a sample transport system and a control method thereof.
According to one aspect of the present invention, there is provided a sample transport system comprising a sample input device, a sample output device, a conduit communicating the sample input device and the sample output device, and a pneumatic source unit outputting a flow of gas into the conduit; after the sample enters the sample input device, the sample is conveyed from the sample input device to the sample output device along the pipeline under the action of the airflow; wherein the sample delivery system further comprises:
the motion detection unit is arranged on the pipeline and used for detecting motion data of the sample in the pipeline;
the control unit is connected with the motion detection unit and used for receiving the motion data and generating a deceleration control instruction based on the motion data;
and the speed reduction unit is arranged on the pipeline between the motion detection unit and the sample output device, is connected with the control unit and is used for carrying out speed reduction control on the sample passing through the speed reduction unit according to the speed reduction control instruction so as to enable the sample to reach the sample output device at a preset speed.
Preferably, the reduction unit comprises at least two reduction devices; the at least two speed reducing devices are sequentially arranged on the pipeline between the motion detection unit and the sample output device and are respectively connected with the control unit;
the control unit sends the deceleration control command to part or all of the at least two deceleration devices to control the part or all of the deceleration devices to perform deceleration control on the sample passing through the deceleration devices.
Preferably, at least one of the at least two speed reduction devices comprises:
a vacuum generator disposed on the conduit for reducing the velocity of the gas flow therethrough;
the reduction unit further includes:
the air compressor is used for generating high-pressure airflow; and
the air conveying pipe is used for communicating the vacuum generator and the air compressor so as to convey the high-pressure airflow from the air compressor to the vacuum generator;
the speed reduction control instruction comprises a first starting instruction and a second starting instruction, and the control unit sends the first starting instruction to the air compressor so as to enable the air compressor to work and generate high-pressure airflow; the control unit sends the second activation command to a corresponding number and/or location of vacuum generators to operate the corresponding number and/or location of vacuum generators and reduce the speed of the airflow passing through it.
Preferably, at least one of the at least two speed reducing devices comprises:
a plurality of through holes disposed on the pipe; and
and the adjusting device is connected with the control unit and is used for opening or closing part or all of the through holes according to the deceleration control instruction and/or adjusting the size of part or all of the through holes.
Preferably, the sample input device comprises:
a receiving mechanism for receiving a sample;
the integrity detection device is used for carrying out integrity detection on the sample received by the receiving mechanism;
counting means for counting the number of samples received by the receiving mechanism;
and the transposition mechanism is used for transferring the sample passing the integrity detection to the outlet of the sample input device.
Preferably, the sample output device includes:
a buffer mechanism for receiving the sample reached at a preset speed and buffering the sample until the sample is stationary.
Preferably, the motion detection unit includes a speed sensor for detecting a speed of the sample passing therethrough and transmitting the detected speed of the sample to the control unit; the control unit generates the deceleration control instruction based on the speed of the sample; or
The motion detection unit comprises at least two position sensors, the at least two position sensors are sequentially arranged on the pipeline along the transmission direction of the sample, and when the sample is detected to pass through the corresponding position of the sample, the position data of the sample and the corresponding detection time are sent to the control unit;
the control unit calculates the speed of the sample based on the position data sent by the at least two position sensors and the corresponding detection time, and generates the deceleration control instruction based on the speed of the sample.
Further preferably, the control unit is further configured to generate an airflow adjustment command based on the speed of the sample, and send the airflow adjustment command to the pneumatic source unit to control the pneumatic source unit to change the flow rate of the airflow output to the duct.
In a second aspect, the present invention further provides a sample transport control method, which is applied to the above sample transport system, and the method includes:
acquiring motion data of a sample in the sample transmission system;
determining a deceleration device of the at least two deceleration devices to be controlled based on the motion data;
and generating a deceleration control instruction based on the motion data, and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device.
Preferably, at least one of the at least two speed reduction devices comprises: a vacuum generator disposed on the conduit for reducing the velocity of the gas stream flowing therethrough; the reduction unit further includes: the air compressor is used for generating high-pressure airflow; the air conveying pipe is used for communicating the vacuum generator and the air compressor so as to convey the high-pressure air flow from the air compressor to the vacuum generator;
the determining of the deceleration device of the at least two deceleration devices to be controlled based on the motion data comprises:
determining the number and/or position of the at least two reduction gears to be controlled based on the movement data;
the generating a deceleration control instruction based on the motion data and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device comprises the following steps:
generating a first starting instruction and a second starting instruction based on the motion data;
sending the first starting instruction to the air compressor so as to enable the air compressor to work and generate high-pressure airflow;
sending the second activation command to a corresponding number and/or location of vacuum generators to operate the corresponding number and/or location of vacuum generators and reduce the velocity of the airflow therethrough;
or at least one of the at least two speed reducing devices comprises a plurality of through holes arranged on the pipeline and an adjusting device used for opening or closing part or all of the through holes and/or adjusting the size of part or all of the through holes;
the determining of the deceleration device of the at least two deceleration devices that needs to be controlled based on the motion data comprises:
determining a number of through holes of a plurality of through holes that need to be opened or closed, and/or resized, based on the movement data;
the generating a deceleration control instruction based on the motion data and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device comprises the following steps:
generating the deceleration control instruction based on the motion data, and outputting the adjusting device to open or close a corresponding number of through holes through the adjusting device, and/or adjusting the size of the corresponding number of through holes;
the method further comprises the following steps:
generating an airflow adjusting instruction based on the motion data, and sending the airflow adjusting instruction to the pneumatic source unit to control the pneumatic source unit to change the flow of the airflow output to the pipeline; wherein the motion data comprises a speed of the sample or position data of the sample and a detection time of the position data.
The invention has the beneficial effects that:
the sample is transmitted in a single direction by adopting front end sending, pipeline connection and rear end receiving, and is subjected to corresponding speed reduction control according to the motion data of the sample in the system, so that the sample reaches a sample output device at a preset speed, and the sample is safely and reliably transmitted.
Drawings
FIG. 1 is a schematic block diagram of a first embodiment of a specimen transport system according to the present invention;
fig. 2 is a flowchart of a first embodiment of a control method of the sample transmission system according to the present invention;
fig. 3 is a flowchart of a second embodiment of a control method of a sample transmission system according to the present invention.
Detailed Description
The technical scheme of the application is further explained in detail with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 is a schematic structural diagram of a first embodiment of the sample conveying system of the present invention, and as shown in fig. 1, in this embodiment, the sample conveying system 100 includes a sample input device 10, a sample output device 20, a pipe 30, a pneumatic source unit 40, a motion detection unit 50, a control unit 60, and a deceleration unit 70.
Wherein the sample input device 10 is adapted to receive a sample 80. In particular, the sample input device 10 includes an inlet, a receiving mechanism, and an outlet (not shown). A receiving mechanism (e.g., a holder) can receive one or more samples 80, and the sample 80 can be placed on the receiving mechanism through the inlet. The outlet communicates with the sample output device 20 via a conduit 30. In some embodiments, the sample input device 10 may also include a transpose mechanism for transferring the sample 80 on the receiving mechanism to the outlet.
The sample output device 20 includes an inlet, a receiving structure, and an outlet (not shown). The receiving means may contain one or more samples 80, the inlet of which is connected to the tubing 30, through which the sample 80 enters the sample output device 20 and finally rests on the receiving means, and through which the sample 80 may be removed. Taking a blood sample as an example, the sample output device 20 is installed in a blood detection assay center. In other embodiments of the present invention, the sample output device 20 may further comprise a buffer mechanism (not shown) for receiving the sample 80 that is reached at a predetermined speed and buffering the sample 80 until the sample 80 reaches the receiving mechanism at rest.
The pipeline 30 is a pipe meeting the standard of the system application scene and is used for communicating the sample input device 10 and the sample output device 20. The tubing under the hospital scene standard may be teflon tubing or the like. To meet the communication requirements in various situations, the shape of the pipe 30 may be various, for example, a cylindrical pipe may be used without obstacles, and a pipe bent at an angle may be used at a corner. As another example, to form multiple paths, tubing having multiple inlets and outlets may be used. The pipeline 30 may be composed of a plurality of sub-pipes with the same shape or different shapes according to the needs of the application scenario. Taking a blood sample as an example, the tube 30 adopts a commercially available 6-minute tube (20 mm inner diameter) according to the size specification of the blood sample, and is suitable for most blood sample delivery in hospitals. Teflon pipelines are adopted at the front end part and the rear end part of the system, so that the blood state is easy to observe, and PVC pipes can be adopted as the pipelines used at the middle position of the system.
The pneumatic source unit 40 is disposed near the sample input device 10 for outputting the air flow into the duct 30, which is a key part of the whole system for providing power for the sample. The flow rate of the output airflow of the pneumatic source unit 40 and the atmospheric pressure are determined according to the sample to be transmitted, and the sample is transmitted in the pipeline 30 at a speed within a preset range, so that the safety of the transmission of the sample is ensured. Taking the blood sample as an example for transportation, the pneumatic source unit 40 provides a clean and dry air flow with a flow rate of about 500L/min and an atmospheric pressure of 0.55-0.65MPa, so that the blood sample can be transported in the tube 30 at a speed of 3-5m/s, thereby effectively preventing the blood sample from vibrating and rotating during the transportation process to cause the change of components in the blood.
In the present embodiment, the pneumatic source unit 40 includes a high-pressure machine 41 (e.g., a screw-type high-pressure machine), a gas transmission pipe 42, and a pneumatic conveyor 43. The air compressor 41 is used for compressing air to generate high-pressure air, and the high-pressure air enters the pneumatic conveyor 43 through the air transmission pipeline 42. The pneumatic conveyor 43 is provided in the pipe 30 near the outlet of the sample input device 10, and the high-pressure gas is injected in the pneumatic conveyor 43 in the conveying direction to form a high-speed gas flow in the pipe 30. Due to the airflow within the tube 30, a negative pressure is created at the inlet of the tube 30 (i.e., at the outlet of the sample input device 10) to draw the sample 80 from the sample input device 10 into the tube 30.
The motion detection unit 50 is disposed on the duct 30, and is used for detecting motion data of the sample 80 in the duct 30. Referring to fig. 1, in the present embodiment, the motion detecting unit 50 includes one or more speed sensors 51, and the one or more speed sensors 51 are disposed on the pipe 30 between the air conveyor 43 and the deceleration unit 70, and detect the speed of the sample 80 transferred in the pipe 30, and transmit the detected speed information of the sample to the control unit 60. Referring to fig. 1, in other embodiments, the motion detection unit 50 includes at least two position sensors 52, which are sequentially disposed on the pipe 30 between the pneumatic conveyor 43 and the deceleration unit 70 along the transport direction of the sample 80, for transmitting position data of the sample 80 and corresponding detection times to the control unit 60 when the sample 80 is detected to pass through its corresponding position.
The control Unit 60 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The control unit 60 is connected to the motion detection unit 50 and the deceleration unit 70, and is configured to generate a deceleration control instruction according to the received motion data, and output the deceleration control instruction to the deceleration unit 70, thereby controlling the deceleration unit 70 to perform deceleration control on the sample 80 passing through it. Specifically, the control unit 60 generates a deceleration control instruction based on the speed of the sample 80. In other embodiments, the control unit 60 calculates the speed of the sample 80 based on the position data sent by the at least two position sensors and the corresponding detection times, and generates the deceleration control command based on the speed of the sample 80.
The deceleration unit 70 is disposed on the pipe 30 between the motion detection unit 50 and the sample output device 20, and is configured to perform deceleration control on the sample 80 passing through it according to a deceleration control command, so that the decelerated sample 80 reaches the sample output device 20 at a preset speed. The deceleration unit 70 includes one or more deceleration devices, and when the deceleration unit 70 includes a plurality of deceleration devices, the plurality of deceleration devices are sequentially disposed on the pipeline 30 between the motion detection unit 50 and the sample output device 20 and are respectively connected to the control unit 60, the control unit 60 determines a deceleration device to be controlled among the plurality of deceleration devices according to the received motion data, and sends the generated deceleration control command to the deceleration device to be controlled, so as to control the corresponding deceleration device to decelerate the sample.
Referring to fig. 1, in this embodiment the decelerating device comprises a vacuum generator 71, the vacuum generator 71 being arranged on the duct 30 for reducing the velocity of the air flow passing through it. At this time, the speed reduction unit 70 further includes an air compressor 72 and an air pipe 73, the air compressor 72 is used for generating high-pressure air flow (which may be the same as or different from the air compressor 41), and the air pipe 73 is used for communicating the vacuum generator 71 and the air compressor 72, so that the high-pressure air flow generated by the air compressor 72 is conveyed from the air compressor 72 to the vacuum generator 71. The control unit 60 generates a deceleration control instruction including a first start instruction and a second start instruction from the received motion data. The control unit 60 sends a first start command to the air compressor 72 to operate the air compressor 72 and generate a high pressure air stream. The control unit 60 sends a second start command to the vacuum generator 71 to operate the vacuum generator 71 and reduce the speed of the air flow passing through it (the operation principle of the vacuum generator 71 is prior art and will not be described here in detail), so as to decelerate the transported sample 80.
When the deceleration unit 70 includes a plurality of vacuum generators 71, the plurality of vacuum generators 71 are sequentially disposed on the pipe 30 between the motion detection unit 50 and the sample output device 20, and are respectively connected to the control unit 60. The control unit 60 determines which vacuum generator 71 of the plurality of vacuum generators 71 is to be controlled based on the received motion data. Specifically, the control unit 60 may determine the deceleration scheme of the sample 80, that is, the number and/or positions of the vacuum generators 71 to be controlled, according to the movement data of the sample 80 and the preset speed to be achieved when the sample 80 reaches the sample output device 20, so as to send a second start command to the corresponding number and/or positions of the vacuum generators 71 to operate to gradually discharge the air in the duct 30, so that the air flow speed in the duct 30 is reduced to a certain value range, thereby achieving gradual deceleration of the sample 80 until the preset speed is achieved. In this way, the sample 80 can reach the sample output device 20 at a gentle predetermined speed.
In other embodiments of the invention, the reduction means comprise a plurality of through holes provided in the duct 30 and adjustment means (not shown in the figures) of the through holes. The adjusting device is connected to the control unit 60, and is configured to open or close some or all of the plurality of through holes according to the deceleration control instruction, and/or adjust the size of some or all of the plurality of through holes, so as to implement deceleration control on the sample 80, so that the sample 80 reaches the sample output device 20 at a gentle preset speed.
In other embodiments of the invention, the reduction unit 70 comprises a plurality of reduction devices, some of which comprise the vacuum generator 71, and some of which comprise a plurality of through holes and adjustment means, and an air compressor 72 and air delivery pipe 73. Through the cooperation to two kinds of decelerator uses, the speed reduction that can better adaptation application environment needs.
In other embodiments of the present invention, the control unit 60 may be further connected to the pneumatic source unit 40, and further configured to generate an airflow adjustment command according to the motion data of the sample 80, and send the airflow adjustment command to the pneumatic source unit 40 to control the pneumatic source unit 40 to change the flow rate of the airflow output to the duct 30, so that the speed of the sample 80 before reaching the deceleration unit 70 is controlled within a certain range, thereby ensuring the safety of the transportation of the sample 80. Specifically, the control unit 60 generates an airflow adjustment command according to the received speed of the sample 80 and outputs the high-pressure machine 41, so that the high-pressure machine 41 adjusts the flow rate and/or pressure of the generated airflow accordingly.
In other embodiments of the present invention, the sample input device 10 further comprises an integrity check device for performing integrity check on the samples 80 received by the receiving mechanism, and a counting device for counting the number of samples 80 received by the receiving mechanism. The sample input device 10 may further include a display device for displaying the integrity test result of the sample and the number of samples. Or the system can also comprise a display device connected with the control unit 60, wherein the control unit 60 is respectively connected with the integrity detection device and the counting device, receives the integrity detection result and the number of the samples and displays the integrity detection result and the number of the samples through the display device. After the sample 80 is placed into the receiving mechanism, it is integrity tested by the integrity testing device. Preferably, the integrity detection device may include a camera, a main controller and a prompt device, the camera collects an image of the sample 80 and outputs the main controller, the main controller identifies the image, so as to determine whether the sample 80 meets a preset integrity requirement (for example, whether a container cover of the sample is fastened, whether the sample leaks, and the like), the sample 80 meeting the integrity requirement is transferred to an outlet by the transpose mechanism, so as to enter the pipeline 30, when the sample 80 not meeting the integrity requirement is found, the main controller controls the prompt device to prompt and/or display prompt information through voice, and the sample 80 not meeting the integrity requirement cannot enter the pipeline 30 for transmission. The counting device can multiplex a camera, a main controller and a prompting device with the integrity detection device, and can also be configured independently, the main controller identifies the number of samples 80 according to image information collected by the camera, and the samples are subjected to voice broadcasting and/or displaying through the prompting device. Through setting up integrality detection device and counting assembly, judge the integrality of sample before the transmission sample, make statistics of the number, increased the intelligent degree of system.
The sample transmission system adopts a one-way transmission mode of front-end sending, pipeline connection and rear-end receiving for the sample, and uses a negative pressure type to suck the sample, so that more sealing mechanisms are not needed at the front end, and the whole construction amount and the construction difficulty are small. In addition, according to the motion data of the sample in the system, the speed reduction control of the blood sample is realized at the rear end, so that the sample reaches the sample output device at a gentle preset speed, the efficiency and the usability of sample transmission are improved, the time consumption and the complexity in the sample transmission process are reduced, and the sample damage possibly caused in the transmission process is effectively avoided.
Fig. 2 is a flowchart of a first embodiment of a control method of a sample transmission system according to the present invention, the control method is implemented by a software program, and when being executed by a control unit of the sample transmission system, the control method implements the following steps:
s1: acquiring motion data of a sample in a sample transmission system;
s2: determining a deceleration device to be controlled of the at least two deceleration devices based on the motion data;
s3: and generating a deceleration control instruction based on the motion data, and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device.
In step S1 of the present embodiment, the motion data of the sample detected by the motion detecting unit 50 of the system is received. Referring to fig. 1, in the present embodiment, the motion detection unit 50 includes one or more speed sensors 51, and the motion data includes the speed of the sample 80 detected by the one or more speed sensors 51. In other embodiments, when the motion detection unit 50 includes at least two position sensors 52, the motion data includes position data of the samples detected by the at least two position sensors 52 and corresponding detection times.
In step S2 of the present embodiment, the deceleration device to be controlled of the at least two deceleration devices is determined based on the received speed information of the sample 80 detected by the one or more speed sensors 51. Specifically, the speed reduction unit 70 includes at least two speed reduction devices, an air compressor 72 and an air pipe 73, at least one of the at least two speed reduction devices includes a vacuum generator 71, and the air pipe 73 communicates the vacuum generator 71 and the air compressor 72. In step S2, the vacuum generator 71 that needs to be controlled among the plurality of vacuum generators 71 is determined based on the speed information of the specimen 80. Preferably, the deceleration scheme of the sample 80, i.e. the number and/or position of the vacuum generators 71 that need to be controlled, is determined based on the movement data of the sample 80 and the desired preset speed of the sample 80 when it reaches the sample output device 20. For example, the speed value to be reduced is calculated according to the movement data of the sample 80 and the preset speed required when the sample 80 reaches the sample output device 20, a corresponding number of vacuum generators 71 and/or vacuum generators 71 at corresponding positions are selected from a plurality of vacuum generators 71 in the system, and the operation of the vacuum generators is controlled to complete the calculated speed reduction value step by step.
In other embodiments, the reduction unit 70 includes at least two reduction devices, at least one of which includes a plurality of through holes provided on the duct 30, and an adjusting device for opening or closing some or all of the plurality of through holes and/or adjusting the size of some or all of the plurality of through holes. At this time, in step S2, the number of through holes that need to be opened or closed and/or resized among the plurality of through holes is determined based on the speed information of the sample.
In step S3 of the present embodiment, a deceleration control instruction is generated based on the received speed information of the sample, the deceleration control instruction including a first start instruction and a second start instruction, and the first start instruction is sent to the air compressor 72 to operate the air compressor 72 and generate a high-pressure air flow. A second activation command is sent to a corresponding number and/or position of vacuum generators 71 to operate the corresponding number and/or position of vacuum generators 71 to gradually evacuate air from duct 30 such that the air flow velocity in duct 30 decreases to within a certain range of values, thereby achieving a gradual deceleration of sample 80 until a preset velocity is reached. In this way, the sample 80 can reach the sample output device 20 at a gentle predetermined speed.
In step S3 of other embodiments, a deceleration control command is generated based on the received speed information of the sample, the deceleration control command is sent to the adjusting device, and the adjusting device opens or closes some or all of the through holes and/or adjusts the size of some or all of the through holes, so as to realize deceleration control of the sample 80, such that the sample 80 reaches the sample output device 20 at a gentle preset speed.
In another embodiment, the reduction unit 70 comprises a plurality of reduction devices, some of which comprise the vacuum generator 71, and some of which comprise a plurality of through holes and adjustment devices, and an air compressor 72 and air delivery pipes 73. At this time, in step S2, the vacuum generators 71 that need to be controlled among the plurality of vacuum generators 71 and the number of through-holes that need to be opened or closed and/or resized among the plurality of through-holes are determined from the speed information of the specimen 80. In step S3, a deceleration control command is generated according to the speed information of the sample 80, the deceleration control command includes a first start command, a second start command and an adjustment command, and the first start command is sent to the air compressor 72 to operate the air compressor 72 and generate a high pressure air flow. A second activation command is sent to a corresponding number and/or position of vacuum generators 71 to operate the corresponding number and/or position of vacuum generators 71 to gradually evacuate the air in duct 30. And sending an adjusting instruction to an adjusting device, and opening or closing part or all of the through holes and/or adjusting the size of part or all of the through holes through the adjusting device. The two speed reducing devices are matched for use, so that the speed reducing requirement of the application environment can be better met.
Fig. 3 is a flowchart of a second embodiment of a control method of a sample transmission system according to the present invention, and as shown in fig. 3, the present embodiment is different from the first embodiment or other embodiments in that the control method further includes:
s4: generating an airflow adjustment instruction based on the movement data and transmitting the airflow adjustment instruction to the pneumatic source unit 40 to control the pneumatic source unit 40 to change the flow rate of the airflow output to the duct 30;
in this embodiment, an airflow adjustment instruction is generated according to the motion data of the sample, and the airflow adjustment instruction is sent to the high-pressure machine of the pneumatic source unit, so that the high-pressure machine correspondingly adjusts the flow rate and/or pressure of the generated airflow.
In other embodiments of the present invention, the sample input device of the system further comprises an integrity detection device for performing integrity detection on the sample received by the receiving mechanism, and a counting device for counting the number of samples received by the receiving mechanism. At this time, the control method may further include:
acquiring and displaying the integrity detection result and the number of samples of the sample;
and prompting when the integrity detection result contains failure.
The integrity detection result and the number of samples can be displayed through a display screen, or the integrity detection result and the number of samples can be broadcasted through voice.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and different technical features in different embodiments for the same protection main body can be combined arbitrarily; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
The above description is only some embodiments of the present invention, and the technical features in the embodiments may be combined arbitrarily. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A sample transport system comprising a sample input device, a sample output device, a conduit communicating the sample input device and the sample output device, and a pneumatic source unit outputting a flow of gas into the conduit; after the sample enters the sample input device, the sample is conveyed from the sample input device to the sample output device along the pipeline under the action of the airflow; characterized in that the sample transport system further comprises:
the motion detection unit is arranged on the pipeline and used for detecting motion data of the sample in the pipeline;
the control unit is connected with the motion detection unit and used for receiving the motion data and generating a deceleration control instruction based on the motion data;
and the speed reduction unit is arranged on the pipeline between the motion detection unit and the sample output device, is connected with the control unit and is used for carrying out speed reduction control on the sample passing through the speed reduction unit according to the speed reduction control instruction so as to enable the sample to reach the sample output device at a preset speed.
2. The system of claim 1, wherein the speed reduction unit comprises at least two speed reduction devices; the at least two speed reducing devices are sequentially arranged on the pipeline between the motion detection unit and the sample output device and are respectively connected with the control unit;
the control unit sends the deceleration control command to part or all of the at least two deceleration devices to control the part or all of the deceleration devices to perform deceleration control on the sample passing through the deceleration devices.
3. The system of claim 2, wherein at least one of the at least two speed reduction devices comprises:
a vacuum generator disposed on the conduit for reducing the velocity of the gas stream flowing therethrough;
the reduction unit further includes:
the air compressor is used for generating high-pressure airflow; and
the air delivery pipe is used for communicating the vacuum generator and the air compressor so as to convey the high-pressure air flow from the air compressor to the vacuum generator;
the control unit sends the first starting instruction to the air compressor so as to enable the air compressor to work and generate high-pressure airflow; the control unit sends the second activation command to a corresponding number and/or location of vacuum generators to operate the corresponding number and/or location of vacuum generators and reduce the speed of the airflow passing through it.
4. The system of claim 2, wherein at least one of the at least two speed reduction devices comprises:
a plurality of through holes disposed on the pipe; and
and the adjusting device is connected with the control unit and is used for opening or closing part or all of the through holes according to the deceleration control instruction and/or adjusting the size of part or all of the through holes.
5. The system of claim 1, wherein the sample input device comprises:
a receiving mechanism for receiving a sample;
the integrity detection device is used for carrying out integrity detection on the sample received by the receiving mechanism;
counting means for counting the number of samples received by the receiving mechanism;
a transpose mechanism for transferring samples that pass integrity testing to an outlet of the sample input device.
6. The system of claim 1, wherein the sample output device comprises:
a buffer mechanism for receiving the sample reached at a preset speed and buffering the sample until the sample is stationary.
7. The system of claim 1, wherein the motion detection unit comprises a speed sensor for detecting a speed of the sample passing therethrough and transmitting the detected speed of the sample to the control unit; the control unit generates the deceleration control instruction based on the speed of the sample; or
The motion detection unit comprises at least two position sensors, the at least two position sensors are sequentially arranged on the pipeline along the transmission direction of the sample, and when the sample is detected to pass through the corresponding position of the sample, the position data of the sample and the corresponding detection time are sent to the control unit;
the control unit calculates the speed of the sample based on the position data sent by the at least two position sensors and the corresponding detection time, and generates the deceleration control instruction based on the speed of the sample.
8. The system of claim 7, wherein the control unit is further configured to generate a gas flow adjustment command based on the velocity of the sample and send the gas flow adjustment command to the pneumatic source unit to control the pneumatic source unit to vary the flow rate of the gas flow output to the conduit.
9. A sample transport control method applied to the sample transport system according to claim 2, the method comprising:
acquiring motion data of a sample in the sample transmission system;
determining a deceleration device of the at least two deceleration devices to be controlled based on the motion data;
and generating a deceleration control instruction based on the motion data, and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device.
10. The method of claim 9, wherein at least one of the at least two speed reduction devices comprises: a vacuum generator disposed on the conduit for reducing the velocity of the gas stream flowing therethrough; the reduction unit further includes: the air compressor is used for generating high-pressure airflow; the air conveying pipe is used for communicating the vacuum generator and the air compressor so as to convey the high-pressure air flow from the air compressor to the vacuum generator;
the determining of the deceleration device of the at least two deceleration devices that needs to be controlled based on the motion data comprises:
determining the number and/or position of the at least two reduction gears to be controlled based on the movement data;
the generating a deceleration control instruction based on the motion data and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device comprises the following steps:
generating a first starting instruction and a second starting instruction based on the motion data;
sending the first starting instruction to the air compressor so as to enable the air compressor to work and generate high-pressure airflow;
sending the second activation command to a corresponding number and/or location of vacuum generators to operate the corresponding number and/or location of vacuum generators and reduce the velocity of the airflow therethrough;
or at least one of the at least two speed reducing devices comprises a plurality of through holes arranged on the pipeline, and an adjusting device used for opening or closing part or all of the through holes and/or adjusting the size of part or all of the through holes;
the determining of the deceleration device of the at least two deceleration devices to be controlled based on the motion data comprises:
determining a number of through holes of a plurality of through holes that need to be opened or closed, and/or resized, based on the movement data;
the generating a deceleration control instruction based on the motion data and sending the deceleration control instruction to the deceleration device to be controlled to control the corresponding deceleration device to perform deceleration control on the sample passing through the corresponding deceleration device comprises the following steps:
generating the deceleration control instruction based on the motion data, and outputting the adjusting device to open or close a corresponding number of through holes through the adjusting device, and/or adjusting the size of the corresponding number of through holes;
the method further comprises the following steps:
generating an airflow adjusting instruction based on the motion data, and sending the airflow adjusting instruction to the pneumatic source unit to control the pneumatic source unit to change the flow of the airflow output to the pipeline; wherein the motion data comprises a speed of the sample or position data of the sample and a detection time of the position data.
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| CN202210575138.9A CN114906620A (en) | 2022-05-25 | 2022-05-25 | Sample conveying system and control method thereof |
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| CN202210575138.9A CN114906620A (en) | 2022-05-25 | 2022-05-25 | Sample conveying system and control method thereof |
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| CN113023367A (en) * | 2021-02-08 | 2021-06-25 | 上海智质科技有限公司 | Material sample conveying system and control method thereof |
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| JP2000255772A (en) * | 1999-03-12 | 2000-09-19 | Ntn Corp | Pneumatic minute component carrying device and vibration type minute component supply device |
| CN204416570U (en) * | 2015-01-04 | 2015-06-24 | 珠海优特电力科技股份有限公司 | Pipe transmission system and transmission storehouse |
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