JP2014149779A - Analyzer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an analyzer capable of correctly analyzing an error at a low cost.SOLUTION: Error information is stored in an error information storage unit 3 in association with not only a timer value from a timer unit 11 but also updated identification information stored in an identification information storage unit 2. After a power supply switch 4 is changed from an off state to an on state, identification information associated with error information stored last in the error information storage unit 3 is read out and updated in predetermined order, and the updated identification information is stored in the identification information storage unit 2. When an error detection unit 12 detects an error, error information is stored in the error information storage unit 3 in association with a timer value from the timer unit 11 at that time and the updated identification information stored in the identification information storage unit 2. This enables correct error analysis based on the identification information at a low cost.

Description

  The present invention relates to an analyzer for analyzing a sample, and in particular, a timer unit that counts a timer value during analysis and resets the timer value when the power source of the analyzer is switched from an on state to an off state. The present invention relates to an analyzer equipped with

  Some analyzers for analyzing a sample can store error information at that time as an error log when an error is detected during analysis (for example, , See Patent Document 1 below). In this type of analyzer, error analysis can be performed by checking the error log after analysis.

  When the error log is configured to store the date and time when the error was detected in association with the error information, the date and time when the error was detected can be specified when checking the error log after analysis. Error analysis can be performed more accurately. However, a general analyzer does not have a function for measuring the date and time, and there is a problem that it is expensive to have such a function.

  Thus, for example, if the control device is connected to the analyzer via a network, the date and time can be measured by the control device. In this case, when an error is detected by the analyzer, the date and time measured by the control device can be stored in association with the error information.

  However, in such a configuration, when an error occurs in the analyzer, there is a possibility that communication between the analyzer and the control device cannot be performed depending on the type of error. In this case, the date and time when the error was detected cannot be stored in association with the error information, and the error analysis may not be performed accurately.

  On the other hand, the analyzer is provided with a control unit composed of, for example, a CPU (Central Processing Unit), and as a function of the OS (Operating System), the timer unit can count the timer value. It is common. In such a timer unit, for example, counting of the timer value is started when the power source of the analyzer is switched from the off state to the on state, and the timer value is reset when the power source of the analyzer is switched from the on state to the off state. It has come to be.

  FIG. 6 is a flowchart showing a conventional example of processing by the control unit when an error is detected. When an error is detected in the analyzer (Yes in step S401), the timer value of the timer unit is acquired (step S402), and error information corresponding to the error type is acquired (step S403). . Then, the acquired timer value and error information are stored in the error information storage unit in a state of being associated with each other (step S404).

  FIG. 7 is a diagram showing a conventional example of an aspect when error information is stored in the error information storage unit. In FIG. 7, as an example of error information, a case where an error code associated with an error type is stored in association with a timer value of a timer unit will be described.

  The error information storage unit sequentially stores error codes as error information each time an error is detected. The error information storage unit is configured by, for example, a non-volatile memory so that the error code is maintained in the state stored in the error information storage unit even when the power supply of the analyzer is turned off. It has become.

  In the example shown in FIG. 7, when the timer value is 40000 msec, the error code “10” is stored in the error information storage unit in association with the timer value, and then the timer value is 12000 msec. The error code “45” is stored in the error information storage unit in association with. In such a case, after an error is detected when the timer value is 40000 msec, the power supply of the analyzer is temporarily turned off, and then the power supply is turned on again, and the count of the timer value starts from 0 msec. It can be seen that an error is detected when the timer value is 12000 msec.

JP 2009-210318 A

  However, in the example shown in FIG. 7 as described above, for the error code “30” associated with the timer value of 12010 msec and the error code “23” associated with the timer value of 14000 msec, the timer value After the error is detected at 12000 msec, it is not possible to determine whether or not the error is detected after the analyzer is turned off.

  That is, whether the error codes “30” and “23” are detected 10 msec and 2000 msec after the error is detected when the timer value is 12000 msec, respectively, or the power supply of the analyzer is temporarily turned off during that time It is impossible to determine whether an error has been detected after the power is turned on again and the timer value is reset. Therefore, there is a problem that if the determination is wrong, error analysis cannot be performed accurately.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an analyzer that can perform error analysis more accurately at low cost.

  An analyzer according to the present invention is an analyzer for analyzing a sample, which counts a timer value during analysis and resets the timer value when the power source of the analyzer is changed from an on state to an off state. A timer unit, an error detection unit for detecting an error generated during analysis, an identification information storage unit for storing identification information, and a non-volatile memory, corresponding to the timer value and the identification information An error information storage unit capable of storing error information, and an identification associated with the error information stored last in the error information storage unit after the power source of the analyzer is turned on from the off state The information is read out and updated according to a predetermined order, and the identification information update processing unit that stores the updated identification information in the identification information storage unit and the error detection unit Is detected, the error information is stored in the error information storage unit in association with the timer value of the timer unit at that time and the updated identification information stored in the identification information storage unit. And an error information storage processing unit capable of performing the processing.

  According to such a configuration, error information can be stored in the error information storage unit in association with not only the timer value of the timer unit but also the updated identification information stored in the identification information storage unit. The identification information associated with the error information stored last in the error information storage unit is read and updated according to a predetermined order after the power source of the analyzer is turned on from the off state. Based on the identification information, error analysis can be performed more accurately.

  That is, if an error is detected after the analyzer is turned off and then turned on again and the timer value is reset, the error information is associated with the updated identification information. Therefore, by confirming the identification information, it is possible to clearly discriminate from the case where an error is detected while the power source of the analyzer is kept on.

  In addition, since the timer unit that resets the timer value when the power source of the analyzer is turned off from the on state is originally provided in a general analyzer, by using the timer unit, An increase in cost can be prevented. Therefore, error analysis can be performed more accurately at a low cost.

  In particular, since the identification information is updated according to a predetermined order, it is possible to clearly determine the order in which the error information is stored in the error information storage unit by checking the identification information. Therefore, error analysis can be performed more accurately as compared with a configuration in which identification information is irregularly updated.

  In addition, since the identification information associated with the error information stored last in the error information storage unit is read and updated according to a predetermined order, an error may occur while the analyzer is powered on. Even when no power is detected, the same identification information will be used when the power is turned on next time. Therefore, it is possible to prevent the identification information from being updated more than necessary and the order in which the error information is stored in the error information storage unit from becoming unclear.

  The error information storage unit may be a ring buffer.

  According to such a configuration, error information is stored in the ring buffer in association with the timer value and the identification information. When the error information storage unit is a ring buffer, it is difficult to determine the order in which the error information is stored. However, the error information is stored by associating the error information with the identification information as in the present invention. Since it is possible to clearly determine the order in which errors are made, error analysis can be performed more accurately.

  The identification information storage unit may be a volatile memory.

  According to such a configuration, the identification information stored in the identification information storage unit is automatically deleted when the power source of the analyzer is changed from the on state to the off state. Therefore, there is no need to perform processing for deleting the identification information stored in the identification information storage unit when the power of the analyzer is turned off, and processing using the identification information efficiently at low cost It can be performed.

  The identification information update processing unit may update the identification information when the power source of the analyzer is switched from an off state to an on state, and store the identification information in the identification information storage unit. In this case, the error information storage processing unit reads the updated identification information from the identification information storage unit every time an error is detected by the error detection unit while the analysis apparatus is powered on, The error information may be stored in the error information storage unit in association with the identification information.

  According to such a configuration, error information stored in the error information storage unit is associated with the same identification information for errors detected continuously while the power supply of the analyzer is on. Therefore, by checking the identification information, it is possible to clearly determine whether or not the error is continuously detected while the power supply of the analyzer is on, so that error analysis can be performed more accurately. Can do.

  According to the present invention, the error information is stored in the error information storage unit in association with not only the timer value of the timer unit but also the updated identification information stored in the identification information storage unit. Based on this, error analysis can be performed more accurately. Further, according to the present invention, since the timer unit is used so that the timer value is reset when the power supply of the analyzer is changed from the on state to the off state, error analysis can be performed at low cost.

It is the block diagram which showed the structural example of the analyzer which concerns on one Embodiment of this invention. It is the flowchart which showed an example of the process by the control part when a power switch changes from an OFF state to an ON state. It is the flowchart which showed an example of the process by the control part at the time of memorize | storing error information matched with the timer value of a timer part. It is the figure which showed an example of the aspect at the time of memorize | storing error information in an error information storage part. It is the flowchart which showed the modification of the process by the control part at the time of memorize | storing error information matched with the timer value of a timer part. It is the flowchart which showed the prior art example of the process by the control part when an error is detected. It is the figure which showed the prior art example of the aspect at the time of memorize | storing error information in an error information storage part.

  FIG. 1 is a block diagram illustrating a configuration example of an analyzer according to an embodiment of the present invention. In the analyzer according to the present embodiment, when an error is detected during the analysis of the sample, the error information at that time is stored as an error log, so that the error log is confirmed after the analysis and the error analysis is performed. Be able to.

  This analyzer includes, for example, a control unit 1, an identification information storage unit 2, an error information storage unit 3, a power switch 4, and the like. The control unit 1 includes, for example, a CPU (Central Processing Unit), and when the CPU executes a program, the timer unit 11, the error detection unit 12, the error information storage processing unit 13, and the identification information update processing unit 14 are executed. It functions as various functional parts such as.

  The identification information storage unit 2 includes a volatile memory such as an SDRAM (Synchronous Dynamic Random Access Memory), and can store identification information. As the identification information, for example, a number (identification number) can be used, but not limited to this, other various types of identification information such as alphabets can be used. Further, the identification information storage unit 2 may be configured by a volatile memory other than an SDRAM such as a RAM (Random Access Memory), or may be configured by a non-volatile memory.

  The error information storage unit 3 includes a nonvolatile memory such as an EEPROM (Electrically Erasable and Programmable Read Only Memory), and can store error information. Since the error information storage unit 3 is composed of a non-volatile memory, the error information is maintained in the state stored in the error information storage unit 3 even when the power source of the analyzer is turned off. It is like that.

  In this embodiment, the error information storage unit 3 is configured by a ring buffer, and error information can be stored with a certain number as an upper limit. When error information is newly stored in the state where the error information is stored up to the upper limit in the error information storage unit 3, the error information stored in the error information storage unit 3 is stored first. The error information will be deleted.

  As the error information, an error code associated with the type of error detected by the analyzer can be used. However, not only the error code but also various other information related to the error can be used as the error information. The error information storage unit 3 may be configured by a nonvolatile memory other than an EEPROM such as a flash ROM (Read Only Memory). The error information storage unit 3 is not limited to a ring buffer.

  The power switch 4 is for switching the power supply of the analyzer between an on state and an off state, and can be switched automatically or manually. When the power switch 4 is switched, a signal to that effect is input to the control unit 1, and the control unit 1 can perform processing based on the signal.

  The timer unit 11 counts a timer value as a function of an OS (Operating System), for example, and starts counting the timer value when the power switch 4 changes from an off state to an on state, and the power switch 4 is turned on. The timer value is reset when the state changes to the off state. During the analysis, the timer unit 11 counts the timer value, and the timer value is input to the error information storage processing unit 13.

  However, the timer unit 11 is not limited to being configured by the control unit 1, and may be configured by, for example, a counter provided separately from the control unit 1. The timer unit 11 can count the timer value during the analysis, and any timer value can be used as long as the timer value is reset when the power switch 4 changes from the on state to the off state. The present invention is not limited to the configuration in which the timer value counting is started at the same time as the state is reached.

  The error detection unit 12 performs processing for detecting an error during analysis. A signal is input to the error detection unit 12 from each unit (not shown) operating during the analysis provided in the analyzer. In the error detection unit 12, the type of the detected error is specified, and error information (for example, an error code) corresponding to the type is input to the error information storage processing unit 13.

  When the error detection unit 12 detects an error, the error information storage processing unit 13 stores the error information in the error information storage unit 3 in association with the timer value of the timer unit 11 at that time. In the present embodiment, not only the timer value of the timer unit 11 but also the identification information stored in the identification information storage unit 2 can be associated and the error information storage unit 3 can store the error information. Yes. That is, the error information storage unit 3 can store the error information in association with the timer value and the identification information.

  The identification information update processing unit 14 reads the identification information stored in the error information storage unit 3, updates it according to a predetermined order, and stores the updated identification information in the identification information storage unit 2. For example, when a number (identification number) is used as the identification information, the configuration may be such that the identification information is updated in ascending order according to the order of the numbers.

  However, the identification information is updated according to a predetermined order. If the order is easy to understand, the identification information is not limited to being updated in ascending order, but may be updated in another order such as descending order. There may be. Further, the identification information can be updated according to an arbitrary order according to the type. For example, when alphabets are used as the identification information, the identification information can be updated according to the alphabetical order.

  FIG. 2 is a flowchart showing an example of processing by the control unit 1 when the power switch 4 is turned on from the off state. In the present embodiment, when the power switch 4 changes from the off state to the on state (Yes in step S101), the identification information associated with the error information stored last in the error information storage unit 3 is read out. (Step S102). That is, among the identification information stored in the error information storage unit 3 in association with the error information, the last identification information in the predetermined order is read out.

  Then, the read identification information is updated according to a predetermined order, and the updated identification information is stored in the identification information storage unit 2 (step S103). However, not only when the power switch 4 changes from the off state to the on state, after the power switch 4 changes from the off state to the on state, the identification information is updated at another timing, and the updated identification information is identified. The configuration may be such that it is stored in the information storage unit 2.

  FIG. 3 is a flowchart showing an example of processing by the control unit 1 when storing error information in association with the timer value of the timer unit 11. In the present embodiment, error information is stored in the error information storage unit 3 in association with the updated identification information stored in the identification information storage unit 2.

  When an error is detected by the error detection unit 12 (Yes in step S201), the timer value of the timer unit 11 is acquired (step S202), and error information corresponding to the type of the error is acquired (step S202). Step S203). At this time, the updated identification information stored in the identification information storage unit 2 is also acquired (step S204), and the error information storage unit 3 is in a state where the acquired timer value, identification information, and error information are associated with each other. (Step S205).

  In the present embodiment, the updated identification information is read from the identification information storage unit 2 each time an error is detected by the error detection unit 12 while the power of the analyzer is on (Yes in step S201). In step S204, the error information is stored in the error information storage unit 3 in association with the identification information (step S205).

  FIG. 4 is a diagram showing an example of a mode when error information is stored in the error information storage unit 3. FIG. 4 illustrates a case where an error code, which is an example of error information, and an identification number, which is an example of identification information, are stored in association with the timer value of the timer unit 11. The timer unit 11 counts timer values in 1 msec units. However, the unit in which the timer unit 11 counts the timer value is not limited to 1 msec unit, and can be set to an arbitrary unit.

  When the power supply of the analyzer is once turned off and then turned on again, the identification numbers updated in a predetermined order (in this example, ascending order) are stored in the identification information storage unit 2. Therefore, the identification number read from the identification information storage unit 2 and stored in the error information storage unit 3 when an error is detected changes. Therefore, in the example shown in FIG. 4, the error code “10” associated with the identification number “6” and the error code “45” associated with the identification number “7”, and the identification number “ Between the error code “45” associated with “7” and the error code “30” associated with the identification number “8”, respectively, to determine that the power of the analyzer has been once turned off. Can do.

  On the other hand, when an error is detected a plurality of times when the power is on, the same identification number is read from the identification information storage unit 2, so the identification number stored in the error information storage unit 3 is It does not change. Therefore, in the example shown in FIG. 4, the power supply of the analyzer is between the error code “30” associated with the identification number “8” and the error code “23” associated with the identification number “8”. It can be determined that is not turned off.

  Thus, in the present embodiment, not only the timer value of the timer unit 11 but also the updated identification number stored in the identification information storage unit 2 is associated with each other, and the error code is stored in the error information storage unit 3. be able to. After the power source of the analyzer is switched from the off state to the on state, the identification number associated with the error code stored last in the error information storage unit 3 is read and updated according to a predetermined order. Therefore, the error analysis can be performed more accurately based on the identification number.

  That is, when an error is detected after the power source of the analyzer is turned off and then turned on again and the timer value is reset, the identification number “7” in the example shown in FIG. As in the case of the error code “45” associated with the error number “30” and the error code “30” associated with the identification number “8”, the error code may be stored in association with the updated identification number. it can. Therefore, by confirming the identification number, the error continues with the analyzer powered on as in the case of the error code “23” associated with the identification number “8” in the example shown in FIG. It can be clearly distinguished from the case where is detected.

  In addition, since the timer unit 11 that resets the timer value when the power source of the analyzer is changed from the on state to the off state is provided in a general analyzer, the timer unit 11 is used. As a result, the increase in cost can be prevented. Therefore, error analysis can be performed more accurately at a low cost.

  In particular, since the identification numbers are updated according to a predetermined order, it is possible to clearly determine the order in which the error codes are stored in the error information storage unit 3 by checking the identification numbers. In the example of FIG. 4, since the identification numbers are updated in ascending order, it is possible to determine that an error code associated with a larger identification number is a recently detected error. Therefore, error analysis can be performed more accurately as compared with a configuration in which the identification number is irregularly updated.

  In addition, since the identification number associated with the error code stored last in the error information storage unit 3 is read and updated according to a predetermined order, the analyzer is temporarily turned on while the power is on. Even when no error is detected, the same identification number is used when the power is turned on next time.

  For example, in FIG. 4, after the error code “10” associated with the identification number “6” is detected, the power of the analyzer is temporarily turned off, and then the error is detected after the power is turned on. If the power is turned off without being performed, the updated identification number “7” at that time is not used. However, when the power is next turned on and an error (for example, error code “45”) is detected, the same identification number “7” is used, so that the identification number “6” in the previous error is used. "Is a sequential number. Therefore, it is possible to prevent the identification number from being updated more than necessary and the order in which the error codes are stored in the error information storage unit 3 from becoming unclear.

  In this embodiment, the error code is stored in the ring buffer in association with the timer value and the identification number. When the error information storage unit 3 is composed of a ring buffer, the error codes are sequentially stored so as to circulate through each storage area of the ring buffer, so that the order in which the error codes are stored becomes difficult to determine. However, since the error codes are stored in association with the identification numbers as in this embodiment, the order in which the error codes are stored can be clearly determined, so that the error analysis can be performed more accurately. .

  Furthermore, in this embodiment, since the identification information storage unit 2 is configured by a volatile memory, the identification information stored in the identification information storage unit 2 when the power source of the analyzer is turned off. The number is automatically deleted. Therefore, when the power source of the analyzer is turned off, it is not necessary to perform a process for deleting the identification number stored in the identification information storage unit 2, and the identification number is efficiently used at low cost. Processing can be performed.

  In the present embodiment, for errors detected continuously while the power source of the analyzer is on, an error code is stored in the error information storage unit 3 in association with the same identification number. For example, in FIG. 4, the same identification number “8” corresponds to the error code “30” associated with the identification number “8” and the error code “23” associated with the identification number “8”. Therefore, it can be determined that the error is detected continuously while the power supply of the analyzer is on. Therefore, by checking the identification number, it is possible to clearly determine whether or not the error is continuously detected while the power supply of the analyzer is on, so that error analysis can be performed more accurately. Can do.

  However, the identification number is not limited to the configuration stored in the error information storage unit 3 in association with all error codes, but is stored in the error information storage unit 3 in association with only some error codes. It may be a simple configuration. For example, the configuration may be such that only the error detected for the first time after the power supply of the analyzer is turned on is stored in the error information storage unit 3 in association with the error code. . In this case, since the error code “23” in the example of FIG. 4 is an error detected for the second time after the power of the analyzer is turned on, the identification number is not associated and stored.

  FIG. 5 is a flowchart showing a modification of the processing by the control unit 1 when storing error information in association with the timer value of the timer unit 11. In this example, the identification information is not updated when the power switch 4 changes from the off state to the on state as in the above embodiment, but an error is detected only when the power switch 4 changes from the off state to the on state. When it is done, the identification information is updated.

  Specifically, when an error is detected by the error detection unit 12 (Yes in step S301), it is determined whether or not the error is detected for the first time when the power switch 4 is turned on from the off state. (Step S302). If the error is detected for the first time after the power switch 4 is switched from the off state to the on state (Yes in step S302), the identification information associated with the error information stored last in the error information storage unit 3 Is read (step S303).

  The read identification information is updated according to a predetermined order, and the updated identification information is stored in the identification information storage unit 2 (step S304). In addition, the timer value of the timer unit 11 is acquired (step S305), and error information corresponding to the error type is acquired (step S306). At this time, the updated identification information stored in the identification information storage unit 2 is also acquired (step S307), and the error information storage unit 3 is in a state in which the acquired timer value, identification information, and error information are associated with each other. (Step S308).

  On the other hand, when the error detected by the error detection unit 12 is not an error detected for the first time after the power switch 4 is switched from the off state to the on state (No in step S302), the processes in steps S303 and S304 are not performed. The processes after step S305 are performed. As a result, the updated identification information is read from the identification information storage unit 2 each time an error is detected by the error detection unit 12 while the analyzer is powered on, and is associated with the identification information. Error information is stored in the error information storage unit 3.

DESCRIPTION OF SYMBOLS 1 Control part 2 Identification information storage part 3 Error information storage part 4 Power switch 11 Timer part 12 Error detection part 13 Error information storage process part 14 Identification information update process part

Claims (4)

An analyzer for analyzing a sample,
A timer unit that counts a timer value during analysis, and that resets the timer value when the power source of the analyzer is turned off.
An error detector for detecting errors that occur during analysis;
An identification information storage unit for storing identification information;
An error information storage unit comprising a non-volatile memory and capable of storing error information in association with the timer value and the identification information;
After the analyzer is turned on from the off state, the identification information associated with the error information stored last in the error information storage unit is read and updated according to a predetermined order, An identification information update processing unit for storing the updated identification information in the identification information storage unit;
When an error is detected by the error detection unit, an error is stored in the error information storage unit in association with the timer value of the timer unit at that time and the updated identification information stored in the identification information storage unit. An analyzer comprising an error information storage processing unit capable of storing information.   The analysis apparatus according to claim 1, wherein the error information storage unit includes a ring buffer.   The analysis apparatus according to claim 1, wherein the identification information storage unit includes a volatile memory. The identification information update processing unit updates the identification information when the power source of the analyzer is turned on from an off state, and stores the identification information in the identification information storage unit.
The error information storage processing unit reads the updated identification information from the identification information storage unit every time an error is detected by the error detection unit while the power of the analyzer is on, and the identification information The analysis apparatus according to claim 1, wherein error information is stored in the error information storage unit in association with the error information.

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