JP3497223B2 - Light source device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTIONLight source device, in detail,
Lamp capable of generating illumination light and lighting controllable
Light source device having simple lighting control circuitAbout
You. [0002] 2. Description of the Related Art In recent years, with the development of the information industry, various devices have been developed.
Digitalization and storage capacity are increasing. For example, in the field of endoscopes, a light source device
The subject image illuminated by the illumination light
Record and save the captured image, and save the image when necessary.
Electronic endoscope that can retrieve data and display it on the screen
Mirror devices have been proposed. Such an electronic endoscope device
Is a video processor that processes the light source device and the imaging signal.
And other devices such as
CPUs and memories as storage elements are widely used.
You. Various data handled by these devices are necessary
Need to be backed up according to the stability of the equipment
It is indispensable for maintaining information. Stand up of power supply
When noise is generated at the time of raising or other factors,
If data is abnormal, stable operation of the equipment cannot be obtained.
Sometimes. [0004]Endoscope fieldIs not limited to
In light source devices as lighting devices, lamps as light sources
Noise is likely to occur due to ON / OFF of. Therefore, light
In the power supply device, the CPU controlling the device controls the noise when the lamp is turned on.
When the lamp is turned on to prevent runaway
Then, the CPU is reset. In the light source device, set values and the like are changed.
Every time the setting value and the like are stored in the memory such as RAM and EEPROM.
Data is stored. That is, update the data
ing. Thus, in the light source device, the light source
To prevent CPU runaway due to noise when the lamp is lit,
It is necessary to reset the CPU when the lamp is turned on. So
In order to control the device correctly and stably,
Must be backed up in memory. However, when the lamp is turned on,
Data and backup data rewriting occur simultaneously
If backup data is unreliable
turn into. [0008] Generally, backup data such as set values of the apparatus are stored.
Data is backed up in a memory such as RAM or EEPROM.
Have been Back up to memory such as RAM and EEPROM.
The backed up data will be lost when writing to memory.
Loss or other noise may cause loss of reliability.
You. For this reason, the device uses
To prevent equipment failures during initial settings, etc.
Backup data using a method such as sum check
Check the reliability of. Then, an abnormality is detected by a sum check or the like.
If issued, the data stored in other memory
The more presets you do, the less the stability of the device
Can be prevented. [0010] SUMMARY OF THE INVENTION As shown in the prior art,
In addition, if it is determined to be abnormal by sum check,
The data on the memory is preset. For example, loading RAM
If you have backed up the accumulated usage time of
The data is meaningless by being reset
Would. Furthermore, EEPROM has a limited number of rewrites.
In the case of EEPROM, the number of rewrites is also
Is generally stored as backup data.
You. In the EEPROM, if a preset occurs, EE
The PROM rewrite frequency is also preset, and
If the replacement is continued, the guaranteed number of EEPROM rewrites
It can be much higher. However, at the time of the preset
If rewriting is prohibited, the main function of the device will be lost
become. [0011] The present invention providesData that has been backed up
Light source device having means for stabilizing the reliability of the light sourceI will provide a
The purpose is to: [0012] Means and Actions for Solving the Problems
The light source device according to the present invention can generate illumination light
Na orchidTheIn the light source device havingLight the lamp
Controllable lighting control circuit and, Settings related to the light source device
A memory capable of storing data,The setting data is stored in the memory.
The lighting control circuit, comprising writing means for writing data.
Reset when the lamp is turned on / off by
ToBackup processing means and the lighting control circuitBefore
ON / OFFLighting operation to determine whether the operation has been completed
Crop identification means,Provided in the backup processing means,
The writing is performed based on the determination result of the lighting operation determination unit.
Operation control means for controlling the writing operation of the writing means
Step andWithWriting in the backup processing means
And the reset timing do not overlap
CaughtIt is characterized by the following. [0013] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Will be described. FIGS. 1 and 2 show the data of this embodiment.
4 is a schematic flowchart of a backup method.
You. The method shown in FIG. 1 uses, for example, a light source as an apparatus.
The present invention is applied to a device, and the light source device will be described as an example. In FIG.
The flowchart shown is for a light source in a light source device.
Data backup method when the lamp is on
Things. The other processing shown in step S1 of FIG.
Is a process for controlling the device. This process ends
After that, in step S2, the lamp of the device is turned on.
Check if it is. If the lamp is on,
Since the reset has already been performed when the lamp is turned on,
In step S4, there was a reset instruction such as a change in set value.
Perform backup processing. That is, the changed data
Data to backup memoryStorage orData
Update. In step S2, the lamp is not lit.
In the case of, the lighting operation of the lamp is
Check whether the process has been completed. Lamp lighting operation ends
If the setting has been completed, the setting value is changed as shown in step S4.
If there is any change, backup processing is performed in step S5.
U. Further, the lamp lighting operation is completed in step S3.
If not, the other processing shown in step S1
And the above operation is repeated. Next, the method shown in FIG. 2 will be described.
The method uses a plurality of memory blocks and a predetermined data test.
On the method of backing up data using the method
It is a chart. In the configuration shown in FIG. 2A, the first memory
It has a block 1 and a second memory block 2. In step S11 of FIG. 2B, the first menu
Inspection of memory block 1 and data in block
Determine if it is normal. If the data is determined to be abnormal,
In step S12, the first memory block 1
2 data of the memory block 2 is written. Also,
If the data is determined to be normal in step S11,
In step S13, the data in the first memory block 1 is
2 is written to the memory block 2. FIGS. 3 and 4 relate to a first embodiment of the present invention.
FIG. 3 is a diagram showing the internal configuration of the light source device, and FIG.
Data backup method when the lamp lights
It is a flowchart. The light source device 10 shown in FIG.
It has a lamp 11 as a source. This light source device 10
Is supplied with a commercial AC power supply 12 as a power supply.
Has become. This commercial AC power supply 12 is a main switch.
And a lighting control circuit 14 via a power switch 13
The control circuit 1 is connected to the control circuit 15
5 is an electrically erasable and writable storage device (EEPROM)
16 and arithmetic processing unit (for example, microcomputer) 1
7 is provided. The control circuit 15 and the power switch
A power supply circuit for DC conversion is normally provided between the
But omitted. Further, the control circuit 15 includes
Between each of the lighting control circuit 14 and the operation panel 18
These signal lines are connected by signal lines 19 and 20.
Send and receive data including control signals via 9, 20
It has become. The operation panel circuit 18 is not shown, for example.
Input key, and the signal given from this input key is
Input to the control circuit 15
You. The lighting control circuit 14 includes the lamp 1
1 is connected and according to the specification of the lamp 11
Electric power is supplied. The lighting control circuit
Reference numeral 14 denotes a run under the control of the control circuit 15.
The on / off of the loop 11 is controlled. Next, referring to the flowchart shown in FIG.
The data related to the lighting of the lamp in this light source device
A method of backing up data will be described. First, the power switch 13 is turned on.
Power is supplied to each part, and the lighting control circuit is
A lamp lighting operation signal is output to the road 14. The lighting system
The control circuit 14 starts a lamp lighting operation. In the flowchart of FIG.
In S21, other processes are ended, and the lighting operation is performed.
It is confirmed in step S22 whether or not the lamp is turned on.
You. If the lamp is turned on in step S22,
Predetermined key input from operation panel circuit 18 in step S24
Is set, for example, the set value
If instructions have been given to change the
In step S25, the backup data is stored in the EEPROM 16.
Cut. In step S24, a predetermined key is entered.
If the force is a release instruction to the EEPROM 16,
At step S25, the backup data is cleared. In step S22, the lamp is turned on.
If not, in step S23, the lighting operation of the lamp is performed.
It is confirmed whether or not has been completed. In step S23
If the lamp lighting operation has ended in
If the predetermined key input has been experienced in S24,
In step S25, the backup data is stored in the EEPROM16.
set. In step S23, the lighting operation of the lamp is performed.
If keystroke has not been completed
Regardless, backup processing is not performed, and step S
Return to 21. In step S24, a predetermined key input is performed.
Whether backup was performed or during backup processing
It is determined whether or not it is, if not, the process proceeds to step S21.
Return. If the backup process is in progress,
In step S25, the backup process is continued. It should be noted that one round from the beginning of step S21,
The time required to return to the first process in step S21 is
While writing data to EEPROM 16
is there. As described above, in this embodiment, the backup
Lamp lighting reset occurs on the way and backup data
Can be prevented, and the operation stability of the light source device can be maintained.
be able to. FIGS. 5 and 6 relate to a second embodiment of the present invention.
5 is an internal configuration diagram of the light source device, and FIG.
Related to data backup processing
It is a chart. The light source device 21 shown in FIG.
11 is connected to the lamp via the lighting control circuit 14.
11 is controlled to be ON / OFF. this
When the power is turned off, the light source device 21 stores necessary data.
Backup. The commercial power supply 11 has a power switch 22
The power supply is connected to the internal power supply 23 via the power supply. Previous
The internal power source 23 is a backflow prevention diode connected in series.
24 and the backup capacitor 2 connected in parallel
5 is connected to the CPU board 26. Ma
The internal power supply 23 is also connected to the lighting control circuit 14.
Has been continued. A power supply is provided inside the CPU board 26.
Pressure monitoring means 27, operating means 28, reset circuit 29
And a CPU 30 including a RAM 31 and an EEPROM 32
And The power supply voltage monitoring means 27
The power supply voltage applied to both ends of the up capacitor 25 is predetermined.
It monitors whether it is a value. The operating hand
The stage 28 is connected to the CPU 30 by an input key (not shown).
Is given to the user. The reset circuit 2
9 outputs a reset signal to the CPU 30 under predetermined conditions
It has become. Next, the operation of this embodiment will be described. In the light source device 21, the power switch 22 is already
Is turned on, the switch shown in the flowchart of FIG.
The CPU 30 executes the other processes in step S33.
are doing. Here, the power switch 22 is temporarily turned off.
Power supply voltage monitoring means 27 detects a voltage drop
Then, a detection signal is output to the CPU 30. Receiving this signal
In addition, the CPU 30 determines in step S32 of FIG.
Judge whether or not it has decreased, and if it is recognized that it has decreased,
Backs up the data in RAM 31 to EEPROM 32
The backup process of step S34 is performed.
You. In a succeeding step S35, the power supply voltage is
It monitors whether the rated value has been reached. If the said back
If the power switch 22 is turned on during the
The backup process in step S34 ends.
Waiting and resetting from the reset circuit 29 in step S36
Signal is generated. Then, in step S31, the CP
U30 transmits a lamp lighting operation signal to the lighting control circuit 14.
Output. The lighting which receives the lamp lighting operation signal
The lamp 11 is turned on by the control circuit 14, and the power supply voltage
As long as there is no decrease, other processes are continuously executed. As described above, in this embodiment, the power supply
The power is turned on during the data backup process.
To prevent CPU runaway due to noise when the lamp is turned on.
Reset is performed to restore the backup data.
Data can be prevented from being lost. Therefore, in this embodiment,
Is for power supply voltage drop due to power on / off etc.
To ensure that backup data is saved,
Always maintain optimal initial conditions and ensure stable equipment operation
The work can be guaranteed. FIGS. 5 and 7 relate to a third embodiment of the present invention.
5 is an internal configuration diagram of the light source device, and FIG.
Data backup using block and sum check
4 is a flowchart of a method. The light source device 31 shown in FIG.
The CPU of the CPU board 26)
Includes a RAM 35 and an EEPROM 36 in place of 30
It has a CPU. The EEPROM 36 has its specifications.
One of the aspects is to backup data
The memory block A and the data at the previous power-on
Memory block B for backup
You. Other configurations and operations similar to those of the second embodiment
Are denoted by the same reference numerals and description thereof is omitted. In the light source device 31, a power switch
When the switch 22 is turned on, the CPU 34
Data is backed up if the set value is changed during operation
Up memory block A and the memory block
The data at the time of the last power-on of A is backed up.
A predetermined inspection method for the data of the memory block B
A certain sum check is performed (step S41 in FIG. 7). In step S42, the CPU 34
As a result of the sum check, the data of the memory block A is
Checking whether it is abnormal. The memory block
If the data of A is abnormal, in step S43,
Write data in memory block B to memory block A
Get in. In step S44, the memory block A
A sum check is performed, and the result is in step S45.
If it is abnormal, the process returns to step S43 and
Write data of block B to memory block A
No. This loop repeats until a successful result is obtained.
It is. In step S45, if the data is normal
If so, proceed to the next process. On the other hand, in step S42, the memory
If the data of block A is normal, step S4
6, a part or all of the data in the memory block A
Is written in the memory block B. Step S47
Then, the sum check of the memory block B is performed. Stay
In step S48, if the check result is abnormal,
Returning to step S46, the processing is performed again. This le
The loop is repeated until a normal result is obtained. Ma
If it is normal, the process proceeds to the next process. Steps S43 to S45
And the processing of steps S46 to S48
The number of returns may be set to a finite number. That is,
After the case of Yes in step S45 and step S48,
An error occurs when the processing count is counted up and exceeds a predetermined number.
Processing shifts to processing such as using a different memory area
You should do it. In step S46 of FIG.
“Part of memory block A” refers to the memory block A
Of the data in B, the device settings are always preset values
The setting value of the device of the memory block A
Means that data is not written to the memory block B.
ing. As described above, in the present embodiment, the integrated use
Loss of data such as usage time and number of rewrites can be prevented.
You. In this embodiment, the data of the number of times of rewriting is lost.
To prevent the EEPROM from being backed up continuously.
Backups are possible. FIGS. 8 and 9 relate to a fourth embodiment of the present invention.
FIG. 8 is an internal configuration diagram of the light source device, and FIG.
FIG. 9B is an explanatory diagram of a memory map of a ROM, and FIG.
Data backup using memory block and sum check
It is a flowchart regarding a backup method. The light source device 41 shown in FIG.
RAM 43 and EE instead of CPU 34 of power supply device 31
It has a CPU 42 including a PROM 44. Also before
The light source device 41 includes, in addition to the configuration of the light source device 21,
A communication unit 45 connected to the CPU 42;
You. The communication means 45 is provided for data with an external device, for example,
It exchanges data such as setting value change instructions.
You. Other configurations and operations similar to those of the third embodiment.
Are denoted by the same reference numerals and description thereof is omitted. In the light source device 41 shown in FIG.
When the power switch 22 is in the on state, the operating means 28 or
The setting value of the device is changed by the input from the communication means 45.
In this case, as shown in the flowchart of FIG.
In step S51, the sum check of the current memory block A is performed.
Do If the result of the check is normal, step
In S57, the data is stored in the current memory block A.
Up. If the result is abnormal in step S51,
In step S53, the data of the current memory block B is
Data and the start address of the current memory block A.
Click. The current memory block B is powered on last time
The data in memory block A at the time of
The data at the time of startup will be checked.
You. Then, in the determination of step S54, the current
Data of the memory block B and the current memory block.
If the start address of the query A is the initial value,
At 55, the data of the past memory block A is
Write to memory block A. On the other hand, in step S54, the data
If the data and the start address are not the initial values,
In step S56, the data of the current memory block B is
Write to the current memory block A. The EEPROM 44 generally has a
Since the number is finite, one
After rewriting a fixed number of times, for example, 10,000 times,
Of the memory block A of the current memory block.
It has moved to Ku-A. During or after this movement, a sum check is performed.
If an error occurs, the current memory block
Transfer data from B, at which time the current memory
Block B stores only initial data. There
The data of the past memory block A is
By writing to memory block A,
Prevents loss of data such as numbers and total use time of equipment
ing. Also, by not losing the rewrite count data,
Backup can be continued to EEPROM.
You. As described above, in the present invention, important
Backup data can be prevented from being lost. [Supplementary Note 1] Perform predetermined operation in device
Procedure and a procedure for backing up data.
The timing of occurrence of the reset signal accompanying the predetermined operation and the
When writing data to a backup destination for backup
The specified operation is fixed so that the period does not overlap
Start the data backup process after
Is the location after the data backup process is completed.
How to backup data that performs regular operation
Law. According to the above [Appendix 1], the device
Reset operation and backup necessary for performing
To prevent simultaneous rewriting of backup data
When performing certain operations
Alternatively, stability can be maintained. [Supplementary Note 2] It has a light source and has a data backup
In the light source device that performs
The procedure for turning on the light source and the reset associated with the lighting operation of the light source.
Record the data for the generation of
In order not to overlap with the time of writing to memory,
Procedure for checking whether or not the lighting operation of the light source is determined
The lighting operation of the light source is determined
After confirming that the
Writing data to the column.
Backup method. According to this data backup method, the light source
Operation and backup data performed when is turned on
To prevent simultaneous rewriting of the
In this case, the stability of the light source device can be maintained. [Supplementary Note 3] Having a light source and a storage means,
In a light source device for backing up data,
Lighting determination procedure to determine whether the lighting operation of the source has been completed
In the lighting determination procedure, the lighting operation of the light source is completed.
Has been instructed to change the set value
A change instruction determining procedure for determining whether
Only when there is an instruction to change the set value in order,
Perform backup processing for writing data to the storage means.
And data backup method. According to the data backup method,
Until the completion of the lighting operation of the light source is confirmed, data
No backup is allowed. [Appendix 4] Data backup when power is turned off
Process for the specified control in the
The power of the device is turned off while
The power is off in the determination procedure
Only when it is determined that
And a backup processing procedure for performing predetermined processing.
Data backup is completed in the backup procedure.
Until the lamp is turned off,
How to backup your data. [Supplementary Note 5] Data is stored respectively
Of the three memory blocks, the first memory block
Data of the first memory block using the checking means.
Inspect by a predetermined method and check whether stored data is normal or not.
A first inspection procedure for determining, and the data
If the data is determined to be abnormal, the second memory block
Using the second memory block checking means
Inspect and determine whether the data is an initial value
In the second inspection procedure and the second inspection procedure,
If the data of the memory block is the initial value, the third
The data stored in the memory block of the first memo
Backing up data that has a
Backup method. [Supplementary Note 6] Data backup
When turning on the power to the light source device,
Electrically erasable and writable storage device having lock (EEP
ROM), the first used for backup
Inspect the data in the memory block by sum check,
An inspection procedure for determining whether the data is normal;
If the data is judged to be abnormal in the inspection procedure,
Data of the first memory block at power-on
The data of the second memory block storing
1 writing procedure to the memory block and the inspection procedure
If the data is determined to be normal, the first note
Write the data of the reblock to the second memory block
A data backup method having a procedure for storing data. [Appendix 7] Data backup
Backing up data due to changes in set values in the light source device
EEPR with multiple memory blocks
The first currently used for backup in OM
Checks the data in the memory block of the
And a first inspection procedure for determining whether the data is normal or not.
And if it is determined to be abnormal in the first inspection procedure,
The first memory block at power-on
Checks data in the second memory block that stores data
And determining whether the data is an initial value.
The data is initialized in the inspection procedure and the second inspection procedure.
If the value, the first memory currently used
Before the block is used, make it the first memory block
The third memory block used in the past
The data of the first memory block is stored in the first currently used memory block.
Having a procedure for writing to a memory block of
Backup method. [Supplementary Note 8] In the second inspection procedure,
If the data is not the initial value, before it is currently used
The data of the second memory block is currently used
Writing to the first memory block.
[Supplementary note 7] The data backup method described in [Appendix 7]. [0072] As described above, according to the present invention,book
Write timing and reset timing do not overlap
To prevent the execution of unreliable backup operations
can doThis has the effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart relating to a data backup method when a lamp as a light source in a light source device is turned on. FIG. 2A is an explanatory diagram of a memory block, and FIG.
9B is a flowchart illustrating data backup processing performed when the power is turned on. FIGS. 3 and 4 relate to the first embodiment, and FIG. 3 is an internal configuration diagram of a light source device. FIG. 4 is a flowchart illustrating a data backup method when the lamp of the light source device is turned on. 5 and 6 relate to a second embodiment, and FIG. 5 is an internal configuration diagram of a light source device. FIG. 6 is a flowchart relating to data backup processing performed when the power is turned off. FIGS. 5 and 7 relate to a third embodiment, and FIG. 7 is a flowchart relating to a data backup method using two memory blocks and a sum check. 8 and 9 relate to a fourth embodiment, and FIG. 8 is an internal configuration diagram of a light source device. FIG. 9A is an explanatory diagram of a memory map of an EEPROM, and FIG. 9B is a flowchart relating to a data backup method using a plurality of memory blocks and a sum check. [Explanation of Signs] 1. First memory block 2 Second memory block S11 Abnormality detection step of first memory block S12 Data backup step S13 Data update step

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Claims (1)

(57) In the light source device having Claims 1. A lamp capable of generating illumination light, and the lighting controllable lighting control circuit the lamp, which can store setting data for the light source device A memory and writing means for writing the setting data to the memory;
ON / OF of the lamp by the lighting control circuit
And backup processing means is reset during the F operation, the lighting operation determination means that due to the lighting control circuit and the ON / OFF operation, it is determined whether or not completed, provided to the backup processor, the lighting operation-size
On the basis of the determination result of another means,
Write operation control means for controlling the write operation in the backup processing means.
And a reset timing .