JP4087074B2 - Data processing equipment for analytical instruments - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data processing apparatus used in an analytical instrument having a function of creating and drawing a graph based on measurement data obtained by a measurement unit, such as a chromatographic analyzer.
[0002]
[Prior art]
In recent years, standards (guidelines) called GLP (Good Laboratory Practice) and GMP (Good Manufacturing Practice) are being introduced in order to ensure the reliability of food inspection, new drug development, and the like. GLP / GMP has strict standards for data management including test / inspection setting conditions and results, and measures to prevent inadvertent or intentional alteration or loss of data are required. . As one of the countermeasures, security analysis is performed at various levels in conventional analytical instruments. For example, data can be changed or deleted except for a specific authorized person (hereinafter referred to as “operator”). There is no such thing.
[0003]
In addition, it is necessary to prevent other persons from operating the analyzer without permission during a period when such an operator is working and has a little eye off. Since the actual data processing device of this type of analysis device is a personal computer (hereinafter abbreviated as “personal computer”), a screen saver with a password authentication function is useful as one of the measures for improving security. . In the screen saver with password authentication function, when an operator performs a predetermined operation when leaving the seat or when it is detected that an input operation signal cannot be obtained for a predetermined time, the screen saver is automatically replaced with the screen that has been displayed so far. A predetermined screen saver screen is displayed on the display. If there is no password authentication function, the screen saver is canceled and the original screen is restored by moving the pointing device or pressing any key on the keyboard. However, if the password authentication function is provided, once the screen saver is activated, the screen saver is not released unless a password known only to the operator is entered, and no operation can be performed, so high security is ensured. Conventionally, such a screen saver with a password authentication function is used in a GLP / GMP-compatible analyzer.
[0004]
[Problems to be solved by the invention]
However, an analytical instrument data processing apparatus equipped with such a function is preferable from the viewpoint of security, but the operation is complicated. For example, in liquid chromatograph analyzers and gas chromatograph analyzers that are widely used in the field of food and pharmaceutical inspections, the time required for measurement is as short as several minutes, and in measurements involving automatic sample exchange, it can be as long as several hours. There may be. For this reason, the operator rarely sits in front of the device from the start to the end of the measurement, and is often away from the device or performs other work even if it is in the vicinity of the device. . In such a case, a screen saver is normally activated, and a screen saver screen that does not make sense for analysis is displayed on the display. However, the operator often wants to check the progress of the analysis in order to confirm whether or not the analysis is properly performed, or to quickly know the result that appeared during the analysis. In that case, in order to see the chromatogram during the measurement, it was necessary to release the screen saver by performing an operation such as inputting a password one by one. In addition, when there are many opportunities to release the screen saver in this way, there is a security problem that the opportunity for other people to operate while the screen saver is not operating is increased accordingly.
[0005]
The present invention has been made in view of these points, and an object of the present invention is to provide a data processing apparatus for analytical instruments that can improve operability while maintaining high security. It is.
[0006]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, a data processing unit that processes data collected by a measurement unit and creates a graph that is updated as the measurement time elapses, and displays the graph on a screen. In an analytical instrument data processing apparatus comprising a display means, a) a screen saver function is activated according to a predetermined condition, a screen saver screen is displayed instead of the original screen at that time, and a predetermined authentication condition is satisfied Screen saver control means for ending the screen saver function and returning to the original screen when it is performed, b) receiving graph data from the data processing unit and rendering a screen saver screen, and at least a part of the screen saver screen as the screen saver screen Includes a graph that is updated as the measurement time elapses even while the screen saver function is operating. Screen saver drawing means.
[0007]
When the analytical instrument is a chromatographic analyzer, the graph is a chromatogram. The predetermined condition for starting the screen saver function may be, for example, a case where no operation is performed for a certain period of time or a case where a specific operation is performed. Further, the predetermined authentication condition for terminating the screen saver function may be, for example, that the input password matches a previously registered password.
[0008]
That is, for example, when no operation is performed for a certain period of time during the measurement, the screen saver control means activates the screen saver function, but the screen saver screen displayed on the display means at that time is currently measuring. The progress of the graph is included, and at least the graph is updated to the latest one at a time even when the screen saver is operating. Therefore, the operator can know the minimum measurement progress / result at any time without performing an authentication operation such as inputting a password. On the other hand, when the operator gives an instruction such as canceling the analysis, the user must first perform an authentication-related operation such as entering a legitimate password, and then complete the screen saver function and return to the original screen. Must be done.
[0009]
【The invention's effect】
As described above, according to the data processing apparatus for an analytical instrument according to the present invention, even if the screen saver is operating, it is not necessary to perform any operation when the user simply wants to check the progress of the measurement, and an operation such as inputting a password. This eliminates the need for the operator to perform the operation one by one, which greatly improves the operability. On the other hand, a person other than the operator can view the graph included in the screen saver screen, but cannot perform an operation that affects the measurement such as interrupting the measurement or changing the measurement conditions. Therefore, high security can be ensured.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a liquid chromatograph analyzer according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of the liquid chromatograph analyzer according to the present embodiment. This device is roughly divided into a measurement unit that performs chromatographic analysis and obtains a detection signal, and creates a chromatogram upon receipt of the detection signal, and further analyzes the chromatogram and performs quantitative analysis and the like. And a data processing unit.
[0011]
In the measurement unit, the sample solution is mixed with the eluent in the sample introduction unit 10 and sent to the column 11, and the sample components in the sample solution are separated in the time direction while passing through the column 11 and reach the outlet. A detector 12 is connected to the outlet of the column 11, and the detector 12 sequentially detects sample components eluted from the column 11 and sends a detection signal to the central processing unit via an interface unit (I / F unit) 13. 20 to send. The I / F unit 13 includes an analog / digital converter and the like.
[0012]
The data processing unit is configured around the central processing unit 20, and the entity is a processing device dedicated to chromatographic data analysis or a general-purpose personal computer equipped with a data analysis program. That is, the central processing unit 20 is configured around a CPU. The central processing unit 20 includes a hard disk 30 that is a large-capacity storage device, a RAM 31 that is a temporary storage device, a keyboard 33, and a pointing device (mouse, trackball). An input control unit 32 for connecting a slide pad 34, a display control unit 35 for connecting a display unit 36, and the like are connected.
[0013]
The central processing unit 20 includes a chromatogram data processing unit 21, a screen saver control unit 22, and a screen saver drawing unit 23 as functions embodied by executing a program stored in the hard disk 30. The chromatogram data processing unit 21 stores the detection signal sent from time to time via the I / F unit 13 in the hard disk 30 and converts it into data suitable for creating a chromatogram by performing predetermined data processing. Process. The screen saver control unit 22 always operates during operation of the apparatus, and achieves characteristic operations as described below in cooperation with the screen saver drawing unit 23.
[0014]
Next, the operation relating to this screen saver will be described with reference to the flowchart of FIG. The screen saver control unit 22 measures a time during which an input operation signal from the keyboard 33 and the pointing device 34 cannot be obtained by using a built-in timer, and always determines whether or not the time has reached a predetermined time (step S1). This predetermined time (that is, the waiting time until the screen saver is activated) can be appropriately set by the operator.
[0015]
When the time when the input operation signal cannot be obtained reaches a predetermined time, the screen saver function is activated (step S2). First, the display screen information currently displayed on the display unit 36 is temporarily saved in the hard disk 30 (step S2). S3) After that, the display screen is switched to the screen saver screen (step S4). The screen saver screen is an image created by the screen saver drawing unit 23. The screen saver drawing unit 23 receives chromatogram data from the chromatogram data processing unit 21 every moment, and displays a graph ( Chromatogram) is drawn and displayed on the display unit 36 via the display control unit 35.
[0016]
FIG. 2 shows an example of a screen saver screen. In this example, the progress of measurement by two measuring units connected together is displayed simultaneously. As the measurement progresses, the chromatogram is updated sequentially, and the progress of the latest chromatogram is always displayed. The screen saver screen at this time does not necessarily have to be displayed on the entire screen, but may be displayed within a predetermined small frame on the screen, or a chromatogram with a transparent background is displayed on the existing screen saver screen. Various display methods can be employed, such as displaying in a superimposed manner. It should be noted that the chromatogram display method on the screen saver screen and the spans of the vertical and horizontal axes may be set appropriately.
[0017]
During the operation of such a screen saver function, the screen saver control unit 22 monitors the presence or absence of an input operation signal (step S5), and if there is an input operation signal, sends an instruction to the screen saver drawing unit 23 to display the screen saver screen. A password input dialog is superimposed and displayed (step S6). When a password is input from the keyboard 33 in response to this dialog (step S7), this password is compared with a password stored in advance in the hard disk 30 (step S8). If they match, the screen saver screen is displayed. Returning to the original screen previously saved is performed (step S10), and the screen saver function is terminated (step S11). As a result, the display screen returns to the original screen, and a normal input operation using the keyboard 33 and the pointing device 34 becomes possible. On the other hand, if it is determined in step S8 that the input password does not match the registered password, a warning is displayed to notify that the input password is incorrect and a warning sound is emitted (step S9). Prompt for password. It should be noted that such a process may be repeated and the password input dialog may be once deleted when a password mismatch occurs a predetermined number of times.
[0018]
In the above process, for example, after the operator gives an instruction to start measurement, if the user goes away from the front for a while, the screen saver function is activated by the processes in steps S1 to S4, and the display screen is shown in FIG. The screen saver screen is displayed. At this time, the chromatogram in the screen saver screen is updated from time to time as the measurement progresses, so that it is displayed as soon as the operator returns to the front of the device (that is, without any operation). You can see the progress and progress of the measurement by looking at the screen. If you do not need to perform any operation related to the measurement, you can leave it as it is.For example, if you think that there is a problem in the measurement by looking at the progress of the chromatogram, perform some operation. If you want to use it, or if you want to enlarge and display a desired peak, you can enter the specified password because the password input dialog is displayed when you operate the keyboard 33 or pointing device 34. And operate the return key. In response to this operation, if there is no error in the password input, the screen saver function is terminated and the original screen is displayed.
[0019]
On the other hand, a person other than the operator (password registrant) can see the chromatogram contained in the screen saver screen, but cannot terminate the screen saver function unless the user knows the proper password. Therefore, it is not possible to perform an operation such as modifying the measurement work, and high security can be maintained.
[0020]
Note that the above embodiment is an example, and it is obvious that modifications and corrections can be made as appropriate within the scope of the present invention. For example, the present invention can be applied not only to the liquid chromatograph analyzer described above but also to various analytical instruments. However, in the case of an analytical instrument in which the measurement is completed in a very short time, it is generally difficult to assume a situation where the operator leaves the table during the measurement, and it is considered that the screen saver itself is rarely functioning. Therefore, the present invention is particularly useful for a long measurement time such as a chromatographic analyzer.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a gas chromatograph analyzer according to an embodiment of the present invention.
FIG. 2 shows an example of a screen saver image of the gas chromatograph analyzer according to the present embodiment.
FIG. 3 is a flowchart of the screen saver control operation of the gas chromatograph analyzer according to the present embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Sample introduction part 11 ... Column 12 ... Detector 13 ... I / F part 20 ... Central processing part 21 ... Chromatogram data processing part 22 ... Screen saver control part 23 ... Screen saver drawing part 30 ... Hard disk 31 ... RAM
32 ... Input control unit 33 ... Keyboard 34 ... Pointing device 35 ... Display control unit 36 ... Display unit

Claims (1)

In a data processing apparatus for an analytical instrument comprising a data processing unit that processes data collected by a measuring unit and creates a graph that is updated as the measurement time elapses, and a display unit that displays the graph on a screen A) Activating the screen saver function according to a predetermined condition, displaying the screen saver screen instead of the original screen at that time, and terminating the screen saver function when a predetermined authentication condition is satisfied, A screen saver control means for returning to b), b) receiving graph data from the data processing section, rendering a screen saver screen, and at least a part of the screen saver screen as the screen saver screen; And a screen saver drawing means for including a graph to be updated along with the graph. A data processing apparatus for analytical instruments characterized by the above.

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