JP2004309249A - Analysis apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such a problem that when carrying out an analysis in the case an analysis condition is temporarily changed, an operator has to restore set values in the analysis condition to their prior states after completing the analysis and is liable to have a setting miss for the values or forget a necessary operation. <P>SOLUTION: In the analysis, use rights R1, R2 and R3 corresponding to user IDs are previously set for respective users. After a user login (S1-S3), analysis condition data are copied to a second memory from a first memory being backed up by another power source (S4), and the data in both the first and second memories are allowed to be rewritten in accordance with the changing operation of the analysis condition for the user who logs thereon using the use right R1; whereas the data only in the second memory are allowed to be rewritten in accordance with the changing operation of the analysis condition for the user who logs thereon using the use right R2 (S5-S10). Therefore, after the user having the use right R2 changes the analysis condition and carries out the analysis, the analysis condition data before the change are used without any operations in the succeeding analysis carried out by the other user. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an analyzer including a liquid chromatograph.
[0002]
[Prior art]
In various analyzers such as a liquid chromatograph, when various analysis condition parameters are input and set prior to analysis, the analysis condition parameters are stored in a memory inside the device, and an analysis operation is performed according to the parameters. For example, in a liquid chromatograph, the pressure of a liquid pump (flow rate of liquid) for flowing a mobile phase, the temperature of a column oven, and the like are analysis condition parameters (for example, see Patent Document 1).
[0003]
Normally, the analysis condition parameters are stored in the RAM, which is a temporary storage element. However, in an application in which analysis is performed almost always using the same analysis condition parameters, the analysis condition parameters are individually stored each time the analyzer is started. Setting is troublesome. Therefore, even when the main power supply is shut off, the analysis condition parameters are stored in a storage element backed up by another power source such as a battery, and the analysis conditions stored in the storage element when the analyzer is next started. There are devices that set parameters to initial values (default values). In such an apparatus, when the analysis condition parameters are changed or when the main power is shut off, the analysis condition parameters are stored in the backup storage area.
[0004]
[Patent Document 1]
JP 9-274028 A (paragraphs 0014 to 0019)
[0005]
[Problems to be solved by the invention]
At the time of analysis using such an analyzer, it may be desired to temporarily change the analysis conditions and execute the analysis. For example, a certain operator may temporarily borrow an analyzer regularly used by another operator to perform analysis, or a service technician may perform analysis using an analyzer owned by a customer. And so on. In such a case, the person who intends to use the analyzer remembers or writes down the analysis conditions before the change, changes the analysis conditions, performs the analysis, and returns the analysis conditions to the values before the change. It is necessary to do the work.
[0006]
However, there is a possibility that an analysis condition different from the original analysis condition is set due to a difference in memory of the user, or that the user forgets to restore the temporarily changed analysis condition. When such a situation occurs, the analysis is performed under inappropriate analysis conditions at the next analysis using the analyzer, and the analysis may be wasted and the work efficiency may be reduced.
[0007]
The present invention has been made in view of such a problem, and an object of the present invention is to reduce the troublesome work involved even when it is necessary to temporarily change the analysis conditions, and to generate it. An object of the present invention is to provide an analyzer capable of preventing a possible failure.
[0008]
[Means for Solving the Problems and Effects]
An analysis device according to the present invention made to solve the above-mentioned problem,
a) storage means for storing analysis condition data, wherein the first storage means is readable / writable and capable of retaining information even when main power is shut off;
b) second storage means for reading and temporarily storing analysis conditions stored in the first storage means prior to the analysis operation;
c) input means for input setting or changing analysis conditions as required;
d) authority setting means for setting the authority to use the analyzer in a plurality of stages;
e) Under the first use authority set by the authority setting means, the analysis condition input or changed by the input means is stored in both the first and second storage means, and the second use authority is stored. Below, analysis condition setting means for storing the analysis conditions input or changed by the input means only in the second storage means,
f) analysis control means for controlling an analysis operation based on the analysis conditions stored in the second storage means;
It is characterized by having.
[0009]
In the analyzer according to the present invention, the analysis condition stored in the first storage means is read into the second storage means prior to the analysis operation, and the analysis control means stores the analysis condition data stored in the second storage means. When the input means does not set or change the analysis conditions, the analysis operation is executed according to the analysis conditions originally held in the first storage means. On the other hand, when the user inputs or sets the analysis condition from the input unit, the analysis condition setting unit sets the first use right according to the use right set by the right setting unit. If the setting is set, the analysis condition input or changed by the input means is stored in both the first and second storage means. If the second use right is set, the input means is used. The input setting or the changed analysis condition is stored only in the second storage means. Therefore, under any of the first and second usage rights, the analysis conditions used for the analysis operation at that time are those set or changed by the input means, but the second usage right is set. In this case, the original analysis condition data remains because the content stored in the first storage means is not rewritten.
[0010]
As described above, according to the analyzer according to the present invention, when the user changes the analysis condition by the input unit, the analysis right is changed depending on the use right (specifically, when the user has the second use right). The analysis conditions apply to the current analysis but do not apply thereafter. Therefore, if it is desired to temporarily borrow an analyzer and perform an analysis with such a specific use right, the analysis can be performed after changing the analysis conditions as desired. Even if no operation is performed, the analysis condition returns to the original state when another user next uses the analyzer. This eliminates the need for such a temporary user to restore the analysis conditions by himself / herself, and inappropriate analysis conditions that have been changed by another user when one user attempts to perform analysis. Thus, mistakes such as performing analysis can be prevented.
[0011]
Further, as one embodiment of the present invention, it is preferable that the authority setting means sets a use authority based on the login information when a user performs a login operation. According to this configuration, the right of use is determined by a certain user performing a log-in operation to use the analyzer. The control according to the use authority appropriately determined as described above can be performed.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an analyzer according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram of a main part of the analyzer according to the present embodiment.
[0013]
The analysis unit 17 is, for example, a liquid chromatograph or a gas chromatograph, and the operation thereof is controlled by the control unit 10. The control unit 10 mainly includes a CPU, and is connected to a first memory 13, a second memory 15, a user registration unit 16, an input unit 11 including a keyboard, a display unit 12 such as a liquid crystal display, and the like.
[0014]
The second memory 15 as the second storage means in the present invention is a normal RAM, and its stored contents disappear when the main power supply of the analyzer is turned off. On the other hand, the first memory 13, which is the first storage means in the present invention, is backed up by the backup power supply 14 even when the main power of the analyzer is turned off. Instead of the RAM backed up by the power supply 14, a flash memory or the like that can electrically rewrite data and retain its stored contents even when the power is turned off may be employed. The user registration unit 16 has a user table 16a that stores user information in which a set of a user ID, a password, and a use right is set in advance.
[0015]
The use authority defines how much authority to change analysis conditions is given to each user in the present analyzer. In this example, three types of use authority R1, R2, and R3 shown in FIG. 2 are used. Is stipulated. That is, R1 permits the change of the analysis condition, and the analysis condition after the change is always valid (that is, backup) in the subsequent analysis (corresponding to the first use right in the present invention), and R2 is the analysis Although the change of the condition is temporarily permitted, the change is valid only for the analysis (corresponding to the second use right in the present invention), and R3 does not permit the change of the analysis condition even temporarily (analysis work). Only possible). It should be noted that the use authority may be given by, for example, an administrator of the analyzer.
[0016]
Next, a characteristic operation of the analyzer will be described with reference to FIGS. FIG. 3 is a flowchart showing the procedure of this operation process, and FIG. 4 is a diagram schematically showing the contents stored in the first and second memories 13 and 15 in each operation state.
[0017]
When a certain operator intends to perform analysis using this analyzer, first, when a predetermined operation is performed on the input unit 11, the control unit 10 that has received this operation displays a login screen on the screen of the display unit 12 ( Step S1). An input screen for a user ID and a password is displayed on the login screen, and the operator inputs a user ID and a password registered in advance from the input unit 11 (step S2).
[0018]
Upon receiving this input, the control unit 10 requests the user registration unit 16 to authenticate the user (step S3). If the corresponding set of user ID and password does not exist in the user table 16a, the control unit 10 logs in. It refuses and returns to step S1. On the other hand, when the corresponding set of the user ID and the password exists in the user table 16a, the login is permitted, the analysis condition data stored in the first memory 13 is read, and the analysis condition data is overwritten on the second memory 15 ( Step S4).
[0019]
That is, as shown in FIG. 4A, when the main power of the analyzer is turned on, the analysis condition data # LC1 is stored in the first memory 13 which is backed up, while the second memory is stored. The storage content of No. 15 is undefined. When the log-in is executed from this state as described above, the analysis condition data # LC1 is also copied to the second memory 15 and the data is determined. Since the user ID and the use right correspond to each other, when the login is permitted, the use right related to the analysis during the login is determined.
[0020]
The analysis condition data stored in the second memory 15 in this manner can be displayed on the screen of the display unit 12 by performing a predetermined operation on the input unit 11. The operator confirms the analysis conditions and performs an operation of changing the analysis conditions as necessary (step S5). When receiving this operation, the control unit 10 determines whether or not the use authority of the user is R3 (step S6). If the use right is R3, no change operation of the analysis condition is accepted, so the change is rejected (step S8), and the process proceeds to step S11.
[0021]
On the other hand, if the use authority is R1 or R2 in step S6, the analysis condition input to be changed is overwritten on the analysis condition data in the second memory 15 (step S7). That is, the analysis condition data in the second memory 15 is changed. Next, the control unit 10 determines whether the use right is R1 (step S9). If the use right is R1, the control unit 10 stores the analysis condition data newly written in the second memory 15 in the first memory. 13 is also copied (overwritten) (step S10), and if the right of use is not R1, the processing of step S10 is avoided.
[0022]
Thus, when the use authority is R2, only the second memory 15 becomes the changed analysis condition data # LC2 as shown in FIG. # LC1 remains. On the other hand, when the use authority is R1, both the first memory 13 and the second memory 15 become the changed analysis condition data # LC2 as shown in FIG.
[0023]
Thereafter, when the operator instructs to start the analysis, the analysis is executed in accordance with the analysis condition data stored in the second memory 15, that is, the work memory (step S11). In this embodiment, since the process returns from step S12 to S5 until the analysis is completed, the analysis conditions can be changed even while the analysis is being performed, but the analysis conditions cannot be changed after the analysis is started. You may do so. In any case, when the usage right is other than R3, the change operation of the analysis condition is reflected on the analysis condition data in the second memory 15, and when the usage right is R1, the further backed-up second copy is performed. The analysis condition changing operation is also reflected in the analysis condition data in one memory 13. If the usage right is R1 or R2, the analysis is performed according to the changed analysis condition data.
[0024]
When the analysis is completed (YES in step S12) and the operator performs a predetermined logoff operation (step S13), the analysis processing by the operator ends. Each time the operator logs in, the analysis condition data is copied from the first memory 13 to the second memory 15 in step S4, and is stored in the first memory 13 when a certain analysis is completed and the user is logged off. The present analysis condition data becomes the initial value of the analysis condition data at the start of the next analysis, that is, the value initially set in the second memory 15.
[0025]
Generally, an operator or service person who can temporarily use this analyzer is given a use right R2. In other words, the authority is that the analysis conditions can be changed only for the analysis, but the analysis conditions after the change are not saved after the analysis is completed. A user who logs in with such authority can save the trouble of restoring the set values of the analysis conditions later because no matter how much the analysis conditions are changed, it does not affect other users. You can focus on your analysis. In addition, it is possible to reduce the mistake of executing the analysis under inappropriate analysis conditions without noticing that the analysis conditions have been changed by another person.
[0026]
In the above-described embodiment, the use authority is determined in accordance with the user ID by inputting the user ID on the login screen. However, the use authority can be set or selected independently of the user ID. You may.
[0027]
Further, the use authority may be set corresponding to a plurality of operation modes prepared in advance in the analyzer. FIG. 5 shows an example of a control flowchart in that case. In this example, when the power is turned on from the state where the main power of the analyzer is turned off and the startup operation is performed, a special key operation (for example, simultaneous pressing of a plurality of key switches or long-time pressing) is performed ( If the answer is YES in step S20, the process shifts to a test mode different from the normal analysis operation mode (step S24). This test mode is a mode in which, for example, a service person or the like performs a failure diagnosis or the like. In this case, the use authority is determined as R2 (step S25). On the other hand, when activated in the normal analysis operation mode (step S21), the use authority is determined to be R1 (step S22). In this way, in the test mode, the analysis condition can be temporarily changed, but the change does not affect the data stored in the first memory 13 and the changed analysis condition data is restored at the end of the analysis. Such operations are unnecessary.
[0028]
It is to be noted that each of the above embodiments is an embodiment of the present invention, and it is apparent that appropriate changes, modifications, and additions can be made within the spirit of the present invention.
[Brief description of the drawings]
FIG. 1 is a block diagram of a main part of an analyzer according to one embodiment of the present invention.
FIG. 2 is a diagram showing an example of a use authority of a user who uses the analyzer of the embodiment.
FIG. 3 is a control flowchart showing a characteristic operation of the analyzer according to the present embodiment.
FIG. 4 is a schematic diagram illustrating the processing operation of FIG. 4;
FIG. 5 is a control flowchart showing a characteristic operation of the analyzer according to another embodiment of the present invention.
[Explanation of symbols]
Reference Signs List 10 control unit 11 input unit 12 display unit 13 first memory 14 backup power supply 15 second memory 16 user registration unit 17 analysis unit

Claims (2)

a) storage means for storing analysis condition data, wherein the first storage means is readable / writable and capable of retaining information even when main power is shut off;
b) second storage means for reading and temporarily storing analysis conditions stored in the first storage means prior to the analysis operation;
c) input means for input setting or changing analysis conditions as required;
d) authority setting means for setting the authority to use the analyzer in a plurality of stages;
e) Under the first use authority set by the authority setting means, the analysis condition input or changed by the input means is stored in both the first and second storage means, and the second use authority is stored. Below, analysis condition setting means for storing the analysis conditions input or changed by the input means only in the second storage means,
f) analysis control means for controlling an analysis operation based on the analysis conditions stored in the second storage means;
An analyzer comprising: The analyzer according to claim 1, wherein the authority setting unit sets use authority based on the login information when the user performs a login operation.

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