JP2002113393A - Centrifuge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a centrifuge having an inexpensive and simple operation part capable of performing the calling and storing works of an operation condition by using a certain operation receptor without any problem. SOLUTION: The centrifuge has the operation receptors 1a-1e corresponding to the operation condition stored in a storage. The receptors control that in the case that the operation time necessary for operating the operation receptors 1a-1e is shorter than a 1st prescribed time t1, the corresponding operation condition is called, and in the case that the operation time is longer than a 2nd prescribed time t2, the corresponding operation condition is stored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
It concerns a callable centrifuge.

[0002]

2. Description of the Related Art Certain types of centrifuges have a function of storing several kinds of operating conditions and recalling them at any time in order to facilitate operation under the same conditions. Conventionally, this type of centrifuge has an operation receiver for retrieving operation conditions stored in advance on an operation unit for setting operation conditions and the like, and an operation receiver for storing operation conditions separately. ing. For example, as shown in FIG. 5, when only the operation condition number switch 20 serving as the operation receiver is pressed, the corresponding operation condition is called, and after operating the storage switch 21 serving as another operation receiver, the operation condition number switch is operated. Pressing 20 stores the operating conditions. Further, as another method, in a centrifuge having a numeric keypad for inputting centrifugal conditions, the numerical value of the numeric keypad is associated with a storage area, and a separate storage, an operation receiver for calling is provided, and operating conditions are called and stored. Some are going. In some cases, the storage operation is restricted by a key or a password in order to prevent rewriting of operating conditions.

[0003]

The centrifuges described above have separate operating receptacles dedicated for recall and storage. If this can be covered by one type of dedicated operation receiver, the number of operation receivers can be reduced by one, thereby reducing costs, increasing the flexibility of the operation unit design, and further simplifying the operation unit. Benefits arise. In particular, the operation receiver for storing the operating conditions is often called up once the operating conditions are stored, but the work frequency of changing the stored contents is not so high. By doing so, the operability of the operation unit is improved. Such a configuration can also be used as another operation receiver, for example, an operation receiver for switching between the display of the setting condition and the display of the actual operation state. That is, by pressing the operation receiver after pressing the operation receiver, the operating condition can be stored by pressing the operation receiver for calling. However, since the operation receiver is originally also used for another purpose, there is a possibility that an erroneous operation by the user may cause the driving condition to be easily stored.

[0004] Usually, a centrifuge is provided with a safety device to prevent operation beyond the maximum permissible rotation speed of the main body and the rotating body. However, depending on the type of centrifuge tube and sample used, a lower rotation speed is required. It is necessary to limit the speed, and in this case, confirmation and judgment by the user is required. However, since the operating condition calling function is characterized by quick operability, the operating condition is changed only once by accessing the operation receptor, so the user changes the called operating condition to the wrong content. Even if it is done, there is a possibility that the problem of starting operation without any notice may occur. Therefore,
The storage method in which the operating conditions can be easily (unconsciously) rewritten has a problem that the centrifuge tube and the sample are not only damaged, but also the user is temporally and economically lost. Further, the method of restricting the storage operation by a key or a password has a problem that the key must be stored and the operation becomes complicated.

[0005] It is an object of the present invention to solve the above-mentioned problems and to make it possible to store and recall one kind of this type of operation receptor,
Another object of the present invention is to provide a centrifuge controlled so that stored contents can be rewritten without any problem.

[0006]

The above object is achieved by automatically recognizing the recall and storage of the operating conditions according to the length of time the user operates the operation receiver. That is, the above object is achieved by having the following effects.

When the user of the centrifuge uses the recall or storage function of the operating conditions, the storage operation is relatively infrequent and less careful than the recall operation and requires careful operation. Therefore, if the operation time of the operation receiver is short, it is determined that there is no intention to store the driving conditions, and if the operation has been performed continuously for a predetermined time or more, it is determined that there is an intention to store the driving conditions and stored. Is effective to prevent erroneous operation conditions from being stored.

[0008] In addition, if it is desired to cancel the memory immediately after the operation of the operation receptor has been started in an attempt to memorize the driving conditions, it is possible to prevent the user from making an unintended call. A dead zone time during which no call is made is provided between the operation time for functioning and the operation time for receiving memory, thereby improving operability.

Further, when the user easily operates the operation receiver for a long time, a warning is given to the user by using a sound or a display before an unintended memory is performed, thereby calling attention to the memory operation. The effect of preventing erroneous memory is increased, and the user is notified by sound or display that the time required to memorize driving conditions has elapsed, so that the user can clearly know the timing of ending the operation. Operability can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for calling or storing operating conditions according to this embodiment will be described with reference to FIGS.

FIG. 1 is a time chart showing the function of the operation receiver. According to this time chart, after the operation on the operation receptor starts at time t0, if the operation on the operation receptor ends before the lapse of time t1, the calling function of the operating condition operates. In addition, it is shown that if time t1 has elapsed while the operation receptor is being operated and operation to the operation receptor has been completed before time t2 is reached, no function is operated. This shows that the operation condition storage function is activated when the operation on the operation receiver is completed after the time t2 has elapsed.

FIG. 2 shows a control unit in the present embodiment. The CPU 3 has operation receivers 1a to 1e, operating condition storages 2a to 2e, and a time for operating the operation receiver. , A centrifuge control circuit 6 to which the operating conditions are applied, and a speaker 5 for emitting a warning sound to a user and the like. CPU3
The operation receivers 1a to 1e are connected to the operation condition storages 2a to 2e, respectively.
For example, when the operation of the operation receiver 1a is detected, the operation condition storage unit 2a is programmed to store or call the operation condition storage unit 2a.

FIG. 3 shows a display example of the operation receptor array portion in this embodiment, and shows an example in which a switch serving as an operation receptor is arranged on the operation panel of the centrifuge. The contents stored in the operating condition storage are abbreviated as “PRO
G ". The numbers 1-5 at the bottom indicate that there are five operating condition stores.

FIG. 4 is a flowchart showing an example of a program executed when the CPU 3 detects an operation on any one of the operation receptors in the present embodiment. The program is executed before the time t1 elapses after the operation receptor is operated. When the operation of the operation receiver is completed, the operating condition is called (step 112). If the operation of the operation receiver is not completed and the time t1 is passed, a warning sound is generated (step 120) to warn that the storage will be performed. At this point, when the operation of the operation receiver is completed, only the end of the warning sound (step 132) is performed, and neither storage nor recall is performed. Further, when the time t2 elapses while the operation receiver is being operated, the warning sound is ended (step 140), a sound indicating completion of the memory preparation is made (step 150), and the operation of the operation receiver is completed (step 160). ). Finally, when the operation of the operation receiver is completed, the storage preparation completion sound is ended (step 170), and the storage of the operating conditions is executed.

[0015] A centrifuge having an inexpensive and simple operation unit capable of performing operation condition recall or storage work without any problem by providing control as described above using one type of operation receiver is provided. can do.

In this embodiment, the operation receiver is not limited to a switch, a photo sensor, etc.
Any device that can detect the behavior of the user, such as a microphone or a camera, may be used. In addition, the means for notifying the warning or the passage of time is not limited to the speaker, and any expression means that can be recognized by the user, such as a lamp and a character display device, can be selected. In addition, all the components used in this embodiment, such as the operation receiver and the operating condition storage device, do not need to be provided in the centrifuge, and can be realized by, for example, an external computer via a communication circuit. It is. Further, the operation conditions are stored when the operation of the operation receiver is completed after the time t2 has elapsed, but the operation conditions are stored without waiting for the operation to be completed after the time t2 has elapsed. May be.

[0017]

According to the present invention, there is provided an operation receiver corresponding to the operating condition stored in the memory, and the operation is performed when the operation time for operating the operation receiver is shorter than the first predetermined time. The operating condition is called, and if the operating time is longer than the second predetermined time, control is performed so that the corresponding operating condition is stored. It is possible to provide a centrifuge having an inexpensive and simple operation unit capable of performing a storage operation.

[Brief description of the drawings]

FIG. 1 is a time chart showing functions of an operation receiver according to the present invention.

FIG. 2 is a block diagram showing a control unit according to the present invention.

FIG. 3 is a display example of an operation receptor array portion according to the present invention, and is a schematic view showing a case where a switch serving as an operation receptor is arranged on an operation panel of a centrifuge.

FIG. 4 is a flowchart showing an example of a program executed when the CPU according to the present invention detects an operation on any of the operation receptors.

FIG. 5 is a schematic view showing a display example of a conventional operation receptor array portion.

[Explanation of symbols]

1a to 1e are operation receivers, 2a to 2e are operating condition storages, 3 is a CPU, 4 is a reference clock, 5 is a speaker, 6
Is a centrifuge control circuit, 20 is an operation condition number switch, 21
Is a memory switch.

Claims (5)

[Claims] 1. A centrifuge for retrieving and controlling arbitrary operating conditions from a memory for storing operating conditions such as a rotation speed and a centrifugation time, wherein an operation receiver corresponding to the operating conditions stored in the memory is provided. When the operation time for operating the operation receiver is shorter than the first predetermined time, the corresponding operating condition is called, and when the operation time is longer than the second predetermined time, the corresponding operating condition is called. A centrifuge characterized by controlling so as to memorize. 2. The centrifuge according to claim 1, wherein the first predetermined time is shorter than the second predetermined time. 3. The method according to claim 1, wherein when the operation time is longer than the first predetermined time and shorter than the second predetermined time, the operating condition is neither stored nor called.
The centrifuge as described. 4. The apparatus according to claim 1, further comprising means for notifying a user that, when the operation time exceeds the first predetermined time, the storage of the operating conditions is performed after the predetermined time. Centrifuge. 5. The apparatus according to claim 1, further comprising means for notifying a user that an operation time required for storing driving conditions has elapsed when the operation time exceeds the second predetermined time. The centrifuge as described.