JP4563296B2 - Chemical analyzer - Google Patents

Description

  The present invention relates to a chemical analysis apparatus capable of selecting the arrangement order of a plurality of apparatus units for each analysis purpose.

  Currently, in the field of chemical analysis, chemical analyzers such as liquid chromatograph mass spectrometers are widely used. In particular, high performance liquid chromatography called HPLC (High Performance Liquid Chromatography) is widely used as a technique for separating and quantifying various organic compounds with high throughput.

  In such a liquid chromatograph, a pump for feeding the eluent or reaction solution to be analyzed, an autosampler for automating the injection of the sample, a column oven with a built-in column for separating the sample and keeping the temperature constant, Detectors for detecting various separated sample components are separated as device units. The user of the liquid chromatograph apparatus can freely change and select the arrangement order of these apparatus units according to the purpose.

  In addition, in a laboratory or analysis center that uses such a liquid chromatograph apparatus, a sufficiently large apparatus installation space cannot often be obtained. For this reason, the space saving of the apparatus itself is often required, and there are many apparatuses that can be used by stacking desktop units.

  These units are connected to a personal computer (PC) and controlled by dedicated software. The analysis results are also analyzed by software on the PC.

  In the analysis work with such an apparatus, it is important to be able to visually recognize the configuration of the apparatus and the connection state of the liquid flow path system because there are frequent replacement of the apparatus unit and change of the liquid flow path system depending on the analysis purpose. Become.

  For this reason, as described in Patent Document 1, when the menu button of the personal computer is pressed, the flow path system diagram of the apparatus main body is displayed, and the connection state of each valve is switched.

  As described above, it is common to improve the operability in the analysis work by pseudo-displaying the liquid channel system on the PC.

JP 9-72911 A

  However, in the display method described in Patent Document 1, although a schematic diagram of the liquid flow path system of the chemical analyzer is displayed, it does not coincide with the actual installation order of each unit, and is displayed at the time of display. It was difficult to determine which actual unit was supported.

  In particular, for the purpose of maintenance work or the like of the liquid chromatograph apparatus, it was difficult to understand which part on the flow path the installed unit corresponds to.

  In order to improve the work efficiency during maintenance work, a method of displaying schematic diagrams on a PC in order of actual device installation is conceivable. However, in this case, it becomes difficult to understand the connection state of the liquid flow path system. It was inconvenient to proceed with the analysis work.

  An object of the present invention is to automatically detect the physical arrangement of an apparatus unit and display the apparatus units in the arrangement order in a chemical analyzer having a plurality of apparatus units whose arrangement order can be changed. The present invention relates to a chemical analyzer capable of displaying a schematic diagram of a liquid channel system corresponding to the above.

  In the present invention, the physical arrangement of each unit is grasped by software on a PC and displayed without the user being aware of it.

  The chemical analysis apparatus or the flow path display method according to the present invention includes a plurality of chemical analysis units, a control unit that controls the operation of these chemical analysis units, a screen display unit, and a liquid flow path between the units. The plurality of units are arranged in series with each other, the arrangement order thereof can be changed, and information communication can be performed between the plurality of units and between the plurality of units and the control unit.

  Then, the control unit of the chemical analysis device searches the arrangement order of the plurality of units, and based on the searched arrangement order of the plurality of units and the liquid flow path information between the plurality of predetermined units. A connection line indicating a liquid flow path, where one of the vertical direction and the horizontal direction on the display screen of the screen display unit is the arrangement order of the plurality of unit names, and the other direction is the order of the liquid flow paths. A flow path diagram connecting the unit names is displayed on the screen display unit.

  Further, the flow path display method is executed by a program for operating a computer as a control unit.

  According to the present invention, for a chemical analyzer having a plurality of apparatus units whose arrangement order can be changed, the physical arrangement of the apparatus units is automatically detected, the apparatus units are displayed in the arrangement order, and the arrangement order is determined. It is possible to realize a chemical analyzer, a flow channel display method, and a flow channel display program that can display a liquid flow channel schematic diagram corresponding to the above.

  The installation flow chart along the flow of the liquid flow path system is displayed while showing the physical arrangement of each unit of the chemical analyzer, for example, the liquid chromatograph apparatus, so that the user performs some operation on the apparatus unit. In this case, since the position where the unit on the liquid channel is installed can be grasped instantaneously and reliably, the operability can be improved.

  Hereinafter, the case where it applies to a liquid chromatograph apparatus as one embodiment of the present invention is explained.

FIG. 1 is a schematic configuration diagram of a liquid chromatograph apparatus according to an embodiment of the present invention.
In FIG. 1, a liquid chromatograph apparatus includes an eluent pump unit 101, a reaction liquid pump unit 102, an autosampler unit 103, a column unit 104, and a detector unit 105, and a unit unit 100 that controls them. Part 116. In other words, the liquid chromatograph apparatus includes two pump units 101 and 102 and one unit 103 to 105 in addition to each other.

  These units 101 to 105 are connected to the PC unit 116 and connected in a daisy chain (a daisy chain) with the composite communication cable 112 to exchange various information. Moreover, these units 101-105 have a structure that can be stacked in the vertical direction, and the units 101-105 can be stacked and installed in any order by the user. The PC unit 116 includes screen display means.

  In the liquid chromatograph apparatus which is one embodiment of the present invention, a method for recognizing the physical arrangement of the apparatus is necessary, and this is realized by using the following method.

  The units 101 to 105 are connected by the composite communication cable 112 as shown in FIG. 1, and FIG.

  In FIG. 2, the units 101 to 105 are connected by a composite communication cable having the shortest length L1 that is daisy chain connected when used in a stacked state. Each of the units 101 to 105 has a primary port and a secondary port, and the primary port is connected in the direction of the PC unit in series connection.

  The Secondary port is connected to the Primary port of the next unit. If there is no next unit to connect, such as the detector unit 105 in one embodiment of the present invention, the Secondary port is left open.

  The primary port and the secondary port have a structure in which the primary port and the secondary port cannot be connected to each other by distinguishing between male and female connectors. The PC unit 116 has a dedicated I / F board having a Master connector, and the units 101 to 105 are connected to the internal bus of the PC unit 116 via the dedicated I / F board.

  When trying to connect units 101 to 105 in an order other than the loading order, a cable having a length L2 equal to or greater than the thickness of one unit is required to connect to other units across at least one unit. . For this reason, the unit installation order and the cable connection order coincide with each other only by connecting with a cable having a length L1 equal to or less than the thickness of one unit.

  In addition to the method of limiting the length of the connection cable, the method of matching the unit installation order with the cable connection order is not limited to the method of limiting the length of the connection cable. A method for realizing the fitting can be considered.

  In addition to the device unit control signal line and the analysis data transmission / reception signal line, the composite communication cable 12 has a pair of transmission / reception signal lines for unit identification. These signal lines are for indicating the order in which the units 101 to 105 are connected. The method for identifying the unit connection order by this transmission / reception line is shown in FIG. 3 and will be described below.

  Reference numerals 301 to 306 in FIG. 3 indicate PC units and units arranged in the horizontal direction, and arrows indicate transmission / reception of information through signal lines. Each of the units 101 to 105 waits for reception of the unit information request signal UnitReq through the reception signal line. This unit information request signal UnitReq is added with the number of hops. When the number of hops is 0, the type and ID of the own unit are returned to the transmission signal line without adding the number of hops.

  When the number of hops is 1 or more, the unit information request signal obtained by subtracting 1 from the number of hops is transferred to the unit connected to the Secondary port. When arbitrary information to which the hop number is not added is transmitted from another unit to the transmission signal line of the Secondary port, each unit transfers the received information as it is to the transmission signal line of the Primary port.

  In order to identify the connected unit, the PC unit 301 first transmits a UnitReq signal with a hop number of 0 as indicated by reference numeral 310. In FIG. 3, the number of hops is added next to UnitReq. In this case, the eluent pump unit 302 which is a unit directly connected to the PC unit 301 responds and returns unit information 311. Accordingly, the PC unit 31 identifies that the type of the unit connected first is the eluent pump 302.

  Next, as indicated by reference numeral 312, the PC unit 301 transmits a UnitReq signal with a hop number of 1. In this case, the eluent pump unit 302, which is a unit directly connected to the PC unit 301, reduces the hop number by 1 to the reaction liquid pump 303 connected to the Secondary port, that is, the UnitReq signal 313 with 0 hops. Send.

  The reaction liquid pump unit 303 receives a UnitReq signal with a hop number of 0, and returns unit information 314 without adding the hop number. The returned information 314 reaches the PC unit 301 via the pump unit 302. From the information 314, the PC unit 301 can identify that the second unit connected is the reaction liquid pump unit 303.

  With the above method, the PC unit 301 can identify the order in which the units are connected by transmitting the UnitReq signal while increasing the number of hops by one.

  In addition, after receiving the response signal from all the units, when a UnitReq signal with an increased hop count is transmitted, there is no unit to respond. For this reason, an appropriate waiting time is set from when the PC unit 301 transmits a UnitReq signal to when a response is received, and when no response is received from the unit even after the set time elapses, the unit detection ends.

  The unit connection order is detected every time the liquid chromatograph is started.

  The unit ID returned by the unit includes the information shown in FIG. 7 (unit serial number, unit type 1, 2, unit width, unit height, unit depth), and the installation flow chart of the present invention is displayed. It is also used for other purposes.

  Screen display is performed on the PC unit based on the unit connection order identified by the above method. An example of the screen display method (installation channel diagram) of the present invention is shown in FIG.

  In FIG. 4, the installation flow diagram 402 which is the display method of the present invention is determined from the actual device installation order in the height direction in addition to arranging the device units in the order of the liquid flow channel from the left to the right of the drawing. The positional relationship is added.

  That is, the unit display position is determined on a two-dimensional plane with the horizontal axis of the installation flow chart shown in FIG. 4 as the flow order and the vertical axis as the unit (apparatus) installation order, and the liquid flow path system and the apparatus installation order are determined. At the same time, it is visually recognized by an operator or the like. The device image 401 is arranged so that the user can intuitively recognize the device image. By displaying the device image 401 simultaneously with the order of the liquid flow paths, the visibility can be further improved. This device image 401 is not essential.

  Next, a specific drawing flow (drawing program executed by the PC unit 116) of the installation channel diagram, which is a feature of the present invention, is shown in FIG.

  In FIG. 6, in the first process 601, the software of the PC unit 116 acquires unit connection information indicating the connection order of the liquid channel systems registered in advance for each analysis purpose. This unit connection information stores in advance the association of units to be shown as effective connection information.

  An example of unit connection information is shown in FIG. In FIG. 5, the unit connection information is a list of the connection destinations of the liquid channel system of each unit in the order of the channels (liquid flows from the top to the bottom in FIG. 5). It is summarized for each. In parentheses 503 after each unit name, additional information on the installation flow chart is added.

  Items in which “v” is added in the parenthesis 503 indicate units that can be displayed in the same row in the figure. This is used to adjust the display position so as to save space when illustrated. Details of this will be described later. Further, “o” indicates that it is not a unit but an input site for various solutions. This unit connection information is stored in advance in the apparatus, and unit connection relationships other than the example shown in FIG. 5 are also prepared.

  Subsequently, in the process 601 in FIG. 6, initialization of a virtual drawing area for temporarily saving drawing information, a process for initializing an [edit line] variable for saving a line position where a unit is arranged, and further, unit enumeration information and UnitID Using the unit height of information, calculate the height of each unit from the floor.

  Here, the virtual drawing area is an area in which a temporary drawing area as shown in FIG. 8 is created, and the arrangement of unit images and the like is provisionally created before drawing on the actual screen. This temporary creation area is provided with rows 811 called edit rows (one-direction rows) at equal intervals along the horizontal direction (flow channel direction). In addition, an installation height display 810 of each unit calculated by processing 601 described later is provided to assist in arranging the unit image 825. The rows arranged in the vertical direction in FIG. 8 are defined as other direction rows (up to a height of 1, one other direction row, up to a height of 2, further one other direction row).

  Note that the unit name example 804 in FIG. 8 is arranged for easy understanding in the explanation of the present invention, and is not necessary for the actual drawing process.

Next, returning to FIG. 6, the process is repeated between processes 602 to 608 for drawing the apparatus in the virtual drawing area.
First, one line of unit connection information is acquired by processing 603. In the example of FIG. 5, the information for one line is information for one line of “eluent A (vo) → eluent pump” 510. And the acquired information is divided | segmented as a connection origin and a connection destination before and behind the arrow shown in this information.

  Next, in process 609, it is checked whether the connection source unit of the acquired information is already arranged in the virtual drawing area. This is because when a connection source unit has a plurality of connection destinations, a plurality of unit connection information is generated, so that the drawing is not repeated. If the connection source unit is already arranged in the process 609, the process returns to the process 603. If the connection source unit is not arranged in process 609, the process proceeds to process 604.

  In process 604, it is determined whether or not the additional information “o” is included in the divided connection source information. If it is included, it is not an apparatus unit but an input site for various solutions, so that it is drawn on the floor surface and in the editing line by processing 605. Since the additional information “o” is included in the first line of this example, the image of the eluent A is drawn on the floor surface and the editing line, that is, the 0th line.

  If it is determined in the process 604 that the additional information “o” is not included, the display area 810 having a height of 1 to 5 calculated in the process 603 and the unit image is drawn on the edit line, that is, the 0th line. When the drawing is completed, one edit line is added by the process 607, and the process for one unit connection information is completed by the repeat end process 608. Thereafter, the processes between the processes 602 to 608 are repeated for the number of unit connection information lines. FIG. 9 shows the state of the virtual drawing area after processing all the unit connection information.

  After all the units are drawn, the process between the processes 620 to 623 is repeated to draw the connection line indicating the liquid flow path system between the units. In the process between the processes 620 to 623, the unit connection information is repeated for each line as in the unit drawing process between the processes 602 to 608.

  In the process 621, information for one line of unit connection information such as “eluent A (vo) → eluent pump” 510 shown in FIG. 5 is acquired and divided as a connection source and a connection destination before and after the arrow. . In process 622, a line segment is drawn from the connection source unit to the connection destination unit.

  FIG. 10 shows the state of the virtual drawing area after all unit connection information has been processed by the above processing.

  In the state shown in FIG. 10, the liquid flow path system is shown in the horizontal direction, and the positional relationship between the units is shown in the vertical direction. In FIG. 10, the target diagram of the present invention has been completed. However, since only one unit is arranged in each editing line, there are many blank portions on the display screen.

  In the case of the example shown in FIG. 10, the same content can be illustrated in a smaller space by arranging a plurality of units in the same editing row to such an extent that the connection of the liquid channel system is not easily seen. For this reason, the process which moves the unit which can be moved to the same edit line by the repetition process of the process 640-642 is performed.

  In the repetition of the process between the processes 640 to 642, unlike the conventional unit connection information acquisition method, the process to be acquired from the channel end side is repeated. This is because the number of unit images that must be moved can be reduced by performing the movement process from the end direction of the flow path.

  In the example shown in FIG. 5, in the order shown in FIG. 5, (1) detector, (2) column unit, (3) reaction liquid pump,... Get unit connection information in reverse order. This unit connection information is read by processing 660 and divided into connection source and connection destination information.

  Next, it is determined by processing 661 whether or not standing arrangement in the drawing is possible, that is, whether or not the unit is added with the additional information “v”. If there is no additional information “v” in the connection source unit, the process moves from the process 642 to 640 and proceeds to the process of the next unit.

  When there is additional information “v”, it is checked whether the flow path connection line does not straddle the unit when the connection source unit image is moved by processing 662 or whether the units overlap each other at the same position. If there is a line stride or unit position overlap in this check, the process moves from process 642 to 640 and proceeds to the process of the next unit. In process 662, when there is no line straddling or unit position overlap and the unit position can be moved, the connection source unit image and the flow path connection line are moved to the same edit row as the connection destination unit image by process 663. . At this time, the end points of the flow path connection lines connect the central portions of the units in consideration of easy viewing. An example in which the movement of the unit arrangement is completed is shown in FIG.

  When the drawing so far is completed, the installation flow chart is transferred from the virtual drawing area to the real screen while deleting the blank edit line by processing 643. An empty edit line is an edit line in which no unit is arranged. In the example shown in FIG. 11, edit lines 1, 2, 4, 5, etc. are shown.

  FIG. 12 shows a display example when the channel connection line straddles the unit when moving the position of the unit image, and the reaction liquid pump is located in the uppermost layer. In the case of the example shown in FIG. 12, when the position of the unit image is moved without considering the judgment of the processing 662 shown in FIG. 6, the channel connection line of “reaction liquid → reaction liquid pump” is connected to the column unit. It will straddle. An example of this is shown in FIG.

  Therefore, when the process 662 is considered so that the flow path connecting line does not straddle the column unit, the determination branches to N in the process 662 in the process of moving the reaction liquid unit image. As a result, the reaction liquid unit image is not moved, and the flow path connection line does not straddle the column unit. An example of the result is shown in FIG.

  The installation flow path diagram of the present invention is drawn by the above procedure.

  The above example is applied when the apparatuses are stacked and installed, but the method of the present invention can also be applied when the apparatuses are used side by side as viewed from the user. In this case, the liquid flow path system may be arranged from the top to the bottom, and the installation order of the devices may be arranged from the left to the right, but may be shown in other directions.

  In the above-described example, the units are connected to each other by a communication cable or a connector. However, information communication between the units may be performed by wireless communication. When connecting each unit by wireless communication, infrared transmission / reception units are arranged on the upper surface side and lower surface side of each unit, and the unit arranged in the uppermost layer or the lowermost layer among the stacked units is Since the reception of infrared rays from other units is only on the upper surface part or the lower surface part, the arrangement position of the unit itself is recognized and transmitted to the PC unit 116. If the units adjacent to the uppermost layer or the lowermost unit are sequentially detected and transmitted to the PC unit 116, the arrangement positions of all the units can be detected.

  Moreover, although the example mentioned above is an example at the time of applying this invention to a liquid chromatograph apparatus, this invention is not only a liquid chromatogram apparatus but chemical analyzers, such as a gas chromatograph apparatus, Comprising: The present invention can be applied to an apparatus that is composed of units and whose arrangement order can be changed.

It is a schematic block diagram of the liquid chromatograph apparatus which is one Embodiment of this invention. It is explanatory drawing of the connection relation by the arrangement | positioning order of the unit in one Embodiment of this invention. It is explanatory drawing of the detection method of the arrangement | positioning order of the unit in one Embodiment of this invention. It is a figure which shows the example of a screen display of the arrangement | positioning relationship and flow path relationship of each unit in one Embodiment of this invention. It is a figure which shows an example of unit connection information. It is a drawing flowchart of the unit installation flow path diagram in one Embodiment of this invention. It is a figure which shows an example of the detail of UnitID information which a unit returns. It is a conceptual diagram of a virtual drawing area. It is the figure which has arrange | positioned the unit image for drawing an installation flow path diagram. It is the figure which drawn the channel connection line for drawing the installation channel diagram. It is a figure which shows the example of the state after moving unit arrangement | positioning. It is a figure which shows the example in case a flow-path connection line straddles a unit. It is a figure which shows the example of the state in which the flow-path connection line straddled the column unit. It is a figure which shows the example considered so that a flow-path connection line may not straddle a unit.

Explanation of symbols

100 Device unit portion 101, 302 Eluent pump unit 102, 303 Reaction solution pump unit 103, 304 Autosampler unit 104, 305 Column unit 105, 306 Detector unit 112 Composite communication cable 116, 301 PC portion

Claims (18)

It has a plurality of chemical analysis units, a control unit that controls the operation of these chemical analysis units, a screen display unit, and a liquid flow path between the units, and the plurality of units are arranged in series with each other. In the chemical analyzer that can change the arrangement order and can communicate information between the plurality of units and between the plurality of units and the control unit,
The control unit retrieves the arrangement order of the plurality of units, and based on the retrieved arrangement order of the plurality of units and liquid flow path information between the plurality of units determined in advance, the screen display unit The unit names are connected by a connecting line indicating the liquid flow path, with one of the vertical and horizontal directions on the display screen as the arrangement order of the plurality of unit names and the other direction as the liquid flow path order. A chemical analyzer, wherein the flow chart is displayed on the screen display unit.   The chemical analyzer according to claim 1, wherein the plurality of unit names are displayed in the vicinity of the flow path diagram according to the arrangement order of the units.   2. The chemical analyzer according to claim 1, wherein a name of a liquid flowing through the liquid channel is connected to the channel and displayed on the channel diagram.   2. The chemical analysis apparatus according to claim 1, wherein the plurality of units are connected to each other by a communication cable having a length equal to or less than a thickness dimension of one unit.   2. The chemical analysis apparatus according to claim 1, wherein the plurality of units have communication connectors formed on the upper surface portion and the lower surface portion of each of the units, and the units are stacked to arrange the communication between adjacent units. A chemical analyzer characterized in that connectors are connected to each other.   The chemical analyzer according to claim 1, wherein the chemical analyzer is a liquid chromatograph.   7. The chemical analysis apparatus according to claim 6, wherein the plurality of units include an eluent pump, a reaction liquid pump, a separation column unit, and a detector unit. It has a plurality of chemical analysis units, a control unit that controls the operation of these chemical analysis units, a screen display unit, and a liquid flow path between the units, and the plurality of units are arranged in series with each other. In the display method of the liquid flow path of the chemical analyzer that can change the arrangement order and can communicate information between the plurality of units and between the plurality of units and the control unit,
Search the arrangement order of the above units,
Based on the liquid flow path information between the plurality of units determined in advance and the arrangement order of the plurality of units searched, one of the vertical direction and the horizontal direction on the display screen of the screen display unit is determined. The flow path diagram in which the unit names are connected with connection lines indicating the liquid flow paths is displayed on the screen display unit with the arrangement order of the plurality of unit names and the other direction as the liquid flow path order. To display the liquid flow path.   9. The liquid channel display method according to claim 8, wherein the plurality of unit names are displayed in the vicinity of the channel diagram according to the arrangement order of the units.   9. The liquid channel display method according to claim 8, wherein a name of a liquid flowing through the liquid channel is connected to the channel and displayed on the channel diagram. The liquid channel display method according to claim 8,
The plurality of units transmit / receive information indicating the number of hops to / from another unit of the plurality of units or the control unit,
When the received hop number indicates 0, information indicating the identification number determined for each received unit is returned to the unit or control unit that transmitted the information indicating the hop number is 0,
If the number of received hops indicates a number of 1 or more, subtract 1 from the number of hops to obtain the number of hops, and send information indicating the number of hops to a unit different from the unit on the transmission side or the control unit,
Information indicating the number of hops increasing from 0 to 1 is sequentially transmitted from the control unit to the plurality of units, and the arrangement order of the plurality of units is searched based on the returned unit identification numbers. A method for displaying a liquid flow path.   9. The liquid channel display method according to claim 8, wherein the chemical analysis device is a liquid chromatograph device.   13. The liquid channel display method according to claim 12, wherein the plurality of units include an eluent pump, a reaction liquid pump, a separation column unit, and a detector unit. Method. It has a plurality of chemical analysis units, a control unit that controls the operation of these chemical analysis units, a screen display unit, and a liquid flow path between the units, and the plurality of units are arranged in series with each other. The liquid flow path for operating the computer that is the control unit of the chemical analyzer that can change the arrangement order and can communicate information between the plurality of units and between the plurality of units and the control unit. In the display program,
Search the arrangement order of the above units,
Search liquid flow path information between the plurality of units stored in advance in the control unit,
Based on the searched liquid flow path information and the arrangement order of the plurality of units, one of the vertical direction and the horizontal direction on the display screen of the screen display unit is set as the arrangement order of the plurality of unit names. A program for displaying a liquid flow path, wherein a flow path diagram in which the unit names are connected by a connection line indicating the liquid flow path is displayed on the screen display unit with the other direction as the liquid flow path order.   15. The liquid channel display program according to claim 14, wherein the plurality of unit names are displayed in the vicinity of the channel diagram according to the arrangement order of the units.   15. The program for displaying a liquid channel according to claim 14, wherein the name of the liquid flowing through the liquid channel is connected to the channel and displayed on the channel diagram. In the liquid channel display program according to claim 14,
The plurality of units transmit / receive information indicating the number of hops to / from another unit of the plurality of units or the control unit,
When the received hop number indicates 0, information indicating the identification number determined for each received unit is returned to the unit or control unit that transmitted the information indicating the hop number is 0,
If the number of received hops indicates a number of 1 or more, subtract 1 from the number of hops to obtain the number of hops, and send information indicating the number of hops to a unit different from the unit on the transmission side or the control unit,
Information indicating the number of hops increasing from 0 to 1 is sequentially transmitted from the control unit to the plurality of units, and the arrangement order of the plurality of units is searched based on the returned unit identification numbers. A program for displaying a liquid flow path. In the liquid channel display program according to claim 14,
A plurality of rows arranged along the direction indicating the arrangement order of the plurality of unit names are referred to as other direction rows, and a plurality of rows arranged along the other direction indicating the order of the liquid flow paths are referred to as one direction rows. ,
In accordance with the arrangement order of the plurality of units and the liquid flow path order, the names of the plurality of units are displayed on the flow path diagram composed of the plurality of unidirectional rows and the plurality of other direction rows,
Display the channel connection line according to the channel connection information between the solution and the unit or between the units,
In the above flow chart, it is determined whether there is a solution or unit that can be placed in the same unidirectional row, and if there is a solution or unit that can be placed in the same unidirectional row, the same unidirectional row Move and place the corresponding solution or unit,
It is determined whether there is a line in which no solution or unit is arranged among the plurality of one-way lines. If there is a corresponding one-way line, the one-way line is deleted and a flow chart is created. A liquid channel display program for displaying on a screen.

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