JP2022078999A - Data processing apparatus - Google Patents

Abstract

To provide a data processing apparatus that can reduce the possibility that data transmitted from a device installed at a distant place will overflow.SOLUTION: A data processing apparatus 10 comprises: a main storage unit 15C; a human sensor 20; a first ensuring processing unit 41A; and a first data processing unit 42A. The human sensor 20 can detect a person. Based on a result of detection performed by the human sensor 20, the first ensuring processing unit 41A ensures, in the main storage unit 15C, a first memory area for a first device distant from the data processing apparatus 10. The first data processing unit 42A processes first data transmitted from the first device by using the first memory area. When the human sensor 20 does not detect the person, the first ensuring processing unit 41A determines the capacity of the first memory area as a first capacity. When the human sensor 20 detects the person, the first ensuring processing unit 41A determines the capacity of the first memory area as a second capacity smaller than the first capacity.SELECTED DRAWING: Figure 4

Description

The present invention relates to a data processing apparatus.

The data processing device includes a multifunction device having a plurality of functions including a copying function, a remote printing function, a fax function, and the like. When the copying function is executed, the data processing device produces a copy in which the image shown in the manuscript is formed on the sheet. When the remote printing function is executed, the data processing device produces a printed matter in which an image based on data transmitted from an information processing device or the like is formed on a sheet. When the fax function is executed, the data processing device receives data transmitted from a facsimile on the sender side, and produces a printed matter in which an image based on the data is formed on a sheet. Here, the information processing device and the facsimile are installed at a place away from the data processing device.

In the data processing apparatus, a memory unit is used for processing various data. The memory unit is shared by the plurality of functions. Specifically, a plurality of different memory areas are allocated to each of the plurality of functions in the memory unit.

In order to efficiently use the memory unit, in the data processing apparatus according to the related technique, a memory area having a large capacity as compared with other functions is allocated for the copying function in the daytime time zone. Further, in the night time zone, a memory area having a large capacity as compared with other functions is allocated to each of the memory area for the fax function and the remote printing function (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2000-059587

However, when a large amount of data is received from the information processing apparatus or the first apparatus which is the facsimile during the time zone in which a small capacity memory area is allocated for the fax function and the remote printing function, the memory area is received. May overflow.

An object of the present invention is to provide a data processing apparatus capable of reducing the possibility of overflow of data transmitted from a first apparatus provided at a location away from the data processing apparatus.

The data processing device according to one aspect of the present invention includes a memory unit, a motion sensor, a first securing processing unit, and a first data processing unit. The motion sensor can detect a person. Based on the detection result of the motion sensor, the first securing processing unit secures a first memory area for the first device away from the data processing device in the memory unit. The first data processing unit processes the first data transmitted by the first apparatus using the first memory area. When the human sensor does not detect the person, the first securing processing unit determines the capacity of the first memory area as the first capacity, and the motion sensor detects the person. In this case, the capacity of the first memory area is determined to be a second capacity smaller than the first capacity.

According to one aspect of the present invention, it is possible to provide a data processing apparatus capable of reducing the possibility of overflow of data transmitted from a first apparatus provided at a location away from the data processing apparatus.

FIG. 1 is a perspective view schematically showing a data processing apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram showing the functions of the data processing apparatus shown in FIG. FIG. 3 is a schematic diagram showing a memory area secured in the main storage unit shown in FIG. 2. FIG. 4 is a diagram showing a functional block of the arithmetic processing unit shown in FIG. FIG. 5 is a flowchart showing a procedure of a first example of a memory area securing process in the data processing apparatus shown in FIG. FIG. 6A is a schematic diagram showing an example of a change over time in the memory area secured by the securing process shown in FIG. FIG. 6B is a schematic diagram showing another example of the change with time of the memory area secured by the securing process shown in FIG. FIG. 7A is the first half of the flowchart showing the procedure of the second example of the memory area securing process in the data processing apparatus shown in FIG. FIG. 7B is the latter half of the flowchart showing the procedure of the second example of the memory area securing process in the data processing apparatus shown in FIG. FIG. 8 is a schematic diagram showing an example of a change over time in the memory area secured by the securing process shown in FIGS. 7A and 7B. FIG. 9 is a diagram showing a functional block of the arithmetic processing unit of the data processing apparatus according to the modified example. FIG. 10A is the first half of a flowchart showing a procedure for securing a memory area in the data processing apparatus shown in FIG. FIG. 10B is a latter half of a flowchart showing a procedure for securing a memory area in the data processing apparatus shown in FIG. FIG. 11A is a schematic diagram showing an example of a change over time in the memory area secured by the securing process shown in FIGS. 10A and 10B. 11B is a schematic diagram showing another example of the change with time of the memory area secured by the securing process shown in FIGS. 10A and 10B.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The following embodiments are examples that embody the present invention, and do not limit the technical scope of the present invention.

First, the schematic configuration of the data processing apparatus 10 according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. Here, FIG. 1 is a schematic cross-sectional view showing the configuration of the data processing device 10. FIG. 2 is a block diagram showing the functions of the data processing device 10.

The data processing device 10 is a multifunction device having a plurality of functions. The plurality of functions include a printing function, a fax function, a data storage function, a copying function, and the like.

As shown in FIGS. 1 and 2, the data processing device 10 includes an ADF (automatic document transfer device) 11, an image reading unit 12, an image forming unit 13, a feeding unit 14, a control unit 15, an operation display unit 16, and an auxiliary. It includes a storage unit 17, a media slot 18, a communication unit 19A, and a human sensor 20.

The ADF 11 includes a document setting unit 11A, a plurality of transfer rollers, a document retainer, and a document ejection unit 11B, and conveys a document read by the image reading unit 12.

The image reading unit 12 includes a document base 12A, a light source, a plurality of mirrors, an optical lens, and a CCD, and can read an image shown in the document conveyed by the ADF 11 and generate image data D10. The image reading unit 12 can transmit the image data D10 to the main storage unit 15C included in the control unit 15. The main storage unit 15C is an example of the memory unit in the present invention.

The image forming unit 13 performs a process of forming an image by an electrophotographic method based on any of the image data D10, D12, D14, and D15 transmitted from the main storage unit 15C. Specifically, the image forming unit 13 includes a photoconductor drum, a charging device, an optical scanning device, a developing device, a transfer roller, a cleaning device, a fixing roller, a pressure roller, and a discharging unit 13A. The image forming unit 13 forms an image on the sheet supplied from the feeding unit 14, and discharges the image-formed sheet to the discharging unit 13A. The image forming unit 13 may form an image by an inkjet method instead of the electrophotographic method.

The operation display unit 16 includes a display unit 16A and an operation unit 16B. The display unit 16A is a display device such as a liquid crystal display that displays various screens based on the image data D11 transferred from the main storage unit 15C together with the control instruction from the control unit 15. The operation unit 16B is an operation key, a touch panel, or the like that transmits various information to the control unit 15 in response to a user operation.

A plurality of media slots 18 to which the external memory 25 is electrically connected are provided on the front surface of the operation display unit 16. External memories 25 of different standards are connected to each of the plurality of media slots 18. Specifically, the external memory 25 is an SD memory card, a compact flash (registered trademark), a memory stick (registered trademark), a USB memory, or the like. Image data D12 is stored in the external memory 25. When the external memory 25 is connected to each of the media slots 18, the contact portion between the media slot 18 and the external memory 25 is electrically connected, whereby the control unit 15 recognizes that the external memory 25 is connected. do.

The image reading unit 12, the display unit 16A, and the external memory 25 are each provided in the data processing device 10, and are an example of the second device in the present invention. Hereinafter, the display unit 16A and the external memory 25 may be collectively referred to as a second device.

A motion sensor 20 is provided on the front surface of the image forming unit 13. The motion sensor 20 can detect the user of the data processing device 10. The user corresponds to the person in the present invention. The motion sensor 20 is a quantum type or thermal type infrared sensor, detects a user located in front of the data processing device 10, and outputs a detection signal Sd indicating the detection result to the control unit 15. The control unit 15 determines whether or not a user is present in front of the data processing device 10 depending on whether or not the detection signal Sd is input. It is also possible to use an image pickup device such as a camera as a motion sensor instead of the motion sensor 20. Further, the motion sensor 20 may be provided not only on the front surface of the image forming unit 13 but also on the front surface of the data processing device 10.

The auxiliary storage unit 17 is a non-volatile storage device. For example, the auxiliary storage unit 17 is a storage device such as a flash memory, an SSD (solid state drive), or an HDD (hard disk drive). Specifically, the auxiliary storage unit 17 can store the image data D10 transmitted by the control unit 15.

The communication unit 19A is a communication interface capable of executing wired or wireless data communication with an information processing device installed at a location away from the data processing device 10. The information processing device is connected to the data processing device 10 so as to be capable of data communication by wire or wirelessly, and is, for example, a personal computer, a tablet terminal, a smartphone, or the like. For example, the communication unit 19A executes wireless communication with the wireless relay device according to a wireless LAN communication standard such as 802.11n. The communication unit 19A may communicate with the information processing device in accordance with a communication standard such as Bluetooth (registered trademark), or may communicate with the information processing device using Wi-Fi Direct (Wi-Fi Direct). It may perform wireless communication in accordance with a wireless LAN communication standard such as (registered trademark). Alternatively, it may communicate with the communication network by a LAN cable or the like. As a result, the communication unit 19A can execute data communication between the information processing apparatus directly or indirectly via the communication network.

The fax transmission / reception unit 19B can receive the image data D14 from a facsimile installed at a place away from the data processing device 10, that is, a place where facsimile transmission is performed, through a communication line including a public line or the like, and the facsimile. It is a device that can transmit image data to.

The information processing device and the facsimile are installed at a place away from the data processing device 10, and are an example of the first device in the present invention. Hereinafter, the information processing apparatus and the facsimile may be collectively referred to as a first apparatus.

The control unit 15 includes an arithmetic processing unit 15A, a program storage unit 15B, a main storage unit 15C, and the like. The arithmetic processing unit 15A is a CPU or the like, the program storage unit 15B is a ROM, and the main storage unit 15C is a RAM or the like. The arithmetic processing unit 15A executes various arithmetic processing. The program storage unit 15B is a non-volatile storage device in which information such as a control program for causing the arithmetic processing unit 15A to execute various processes is stored in advance. The main storage unit 15C is a volatile storage device used as a temporary storage memory (working area) for various processes executed by the arithmetic processing unit 15A. The control unit 15 communicates with the ADF 11, the image reading unit 12, the image forming unit 13, the operation display unit 16, the auxiliary storage unit 17, the communication unit 19A, the fax transmission / reception unit 19B, the motion sensor 20, the media slot 18, and the like. It is connected as possible. Further, when the external memory 25 is installed in the media slot 18, the control unit 15 connects to the external memory 25 so that data communication is possible.

In the control unit 15, the control program stored in advance in the program storage unit 15B is executed by the arithmetic processing unit 15A. As a result, the data processing device 10 is collectively controlled by the control unit 15. The control unit 15 may be composed of an electronic circuit such as an integrated circuit (ASIC), or may be a control unit provided separately from the main control unit that collectively controls the data processing device 10.

Further, the control unit 15 secures memory areas 31A, 31B, 31C, 31D, 31E, 31F in the main storage unit 15C as shown in FIG. 3 while the main power of the data processing device 10 is turned on. do. The main storage unit 15C is an example of the memory unit in the present invention.

The memory area 31A is used by the arithmetic processing unit 15A when the data processing device 10 executes the remote printing function. The remote printing function is one of the printing functions. By executing the remote printing function, the data processing device 10 receives the image data D15 transmitted by the information processing device through the communication unit 19A, forms an image based on the image data D15 on a sheet, and after forming the image. Discharge the sheet.

The memory area 31B is used by the arithmetic processing unit 15A when the data processing device 10 executes the fax function.

The memory area 31C is used by the arithmetic processing unit 15A when the data processing device 10 executes the data storage function. The data storage function is a function of storing the image data D10 generated by the image reading unit 12 in the auxiliary storage unit 17.

The memory area 31D is used by the arithmetic processing unit 15A when the data processing device 10 executes the direct printing function. The direct printing function is one of the other printing functions. By executing the direct printing function, the data processing device 10 reads out the image data D12 stored in the external memory 25, forms an image based on the image data D12 on the sheet, and ejects the sheet after the image formation. ..

The memory area 31E is used by the arithmetic processing unit 15A when the data processing device 10 executes the copying function.

The memory area 31F is used by the arithmetic processing unit 15A when the display unit 16A of the data processing device 10 displays various screens. The memory area 31F for the display unit 16A may not be provided in the main storage unit 15C. In this case, the graphics memory corresponding to the memory area 31F is secured in the graphics memory provided inside the display unit 16A.

The arithmetic processing unit 15A controls the respective capacities of the memory areas 31A to 31E allocated to the plurality of functions based on the detection signal Sd input from the motion sensor 20. Specifically, by executing the control program, the arithmetic processing unit 15A executes the control program, and as shown in FIG. 4, the first reservation processing unit 41A, the second reservation processing unit 41B, the first data processing unit 42A, and the second data. It functions as a processing unit 42B and a determination processing unit 43.

The first securing processing unit 41A reserves the memory areas 31A and 31B used in the first device in the main storage unit 15C based on the detection result of the motion sensor 20, that is, the detection signal Sd. In other words, the first securing processing unit 41A allocates the memory areas 31A and 31B to the main storage unit 15C based on the detection result of the motion sensor 20, that is, the detection signal signal Sd. Specifically, the first securing processing unit 41A has the capacity of the memory areas 31A and 31B when the motion sensor 20 does not detect the person, that is, when the detection signal Sd is not output from the motion sensor 20. Is determined to be the first capacity C1 (see FIG. 5). Further, when the motion sensor 20 detects the person, that is, when the detection signal Sd is output from the motion sensor 20, the first securing processing unit 41A determines the capacities of the memory areas 31A and 31B. The second capacity C2 (see FIG. 5), which is smaller than the first capacity C1, is determined. The memory areas 31A and 31B are examples of the first memory area in the present invention.

The first data processing unit 42A processes the first data transmitted by the first apparatus using the memory areas 31A and 31B.

If a large amount of image data D15 is received from the information processing apparatus or a large amount of image data D14 is received from the facsimile during a time zone in which a small capacity memory area is allocated for the fax function and the remote printing function, The memory areas 31A and 31B may overflow. On the other hand, in the present embodiment, the capacity of the memory areas 31A and 31B is the first capacity C1 when the motion sensor 20 does not detect the user, and the motion sensor 20 detects the user. If so, it is a second capacity C2 smaller than the first capacity C1. As a result, it is possible to shorten the time zone in which a small capacity memory area is allocated for the fax function and the remote printing function. This makes it possible to reduce the possibility that the memory areas 31A and 31B overflow in the image data D14 and D15 transmitted from the first device provided at a location away from the data processing device 10.

Specifically, the first data processing unit 42A includes a first printing processing unit 421A and a fax processing unit 422A.

When the communication unit 19A receives the image data D15 transmitted by the information processing device, the control unit 15 executes the remote printing function. More specifically, the communication unit 19A temporarily stores the image data D15 in the memory area 31A under the control of the control unit 15. The first print processing unit 421A executes the first specific processing on the image data D15 stored in the memory area 31A. The first specific process is a RIP (Raster Image Processing) process or the like. The first print processing unit 421A transmits the image data D15 that has undergone the first specific processing from the memory area 31A to the image forming unit 13. The image forming unit 13 forms an image based on the image data D15 after the first specific processing on the sheet, and discharges the sheet after the image formation. The above is the details of the remote printing function.

When the fax transmission / reception unit 19B receives the image data D14 transmitted by the facsimile, the control unit 15 executes the fax function. More specifically, the fax transmission / reception unit 19B temporarily stores the image data D14 in the memory area 31B. The image data is encoded according to the fax communication standard. The fax processing unit 422A decodes the image data D14 and transmits the decoded image data D14 from the memory area 31B to the image forming unit 13. The image forming unit 13 forms an image based on the decoded image data D14 on the sheet, and discharges the sheet after the image formation. The above is the details of the fax function.

The image data D14 and D15 are examples of the first data in the present invention.

Further, the second securing processing unit 41B secures the memory areas 31C to 31E in the main storage unit 15C when the motion sensor 20 detects the user. The memory areas 31C to 31E are examples of the second memory area in the present invention.

The second data processing unit 42B processes the second data transmitted by the second device using the memory areas 31C to 31E. Specifically, the second data processing unit 42B includes a storage processing unit 421B, a second printing processing unit 422B, and a copying processing unit 423C.

When the external memory 25 is connected to the media slot 18 and the information indicating the execution instruction of the data storage function is transmitted from the operation unit 16B to the control unit 15, the control unit 15 executes the data storage function. More specifically, the image reading unit 12 generates image data D10 representing the image of the original document conveyed by the ADF 11 and temporarily stores it in the memory area 31C. The storage processing unit 421B executes the second specific processing on the image data D10 stored in the memory area 31C. The second specific process is a process of converting the data format of the image data D10 into another data format. The storage processing unit 421B transmits the second specific processed image data D10 from the memory area 31C to the auxiliary storage unit 17. The auxiliary storage unit 17 stores the image data D10 that has undergone the specific processing. The above is the data storage process.

When the external memory 25 is connected to the media slot 18 and the information indicating the execution instruction of the direct print function is transmitted from the operation unit 16B to the control unit 15, the control unit 15 executes the direct print function. The second print processing unit 422B reads out the image data D12 stored in the external memory 25, and temporarily stores the image data D12 in the memory area 31D. The second print processing unit 422B executes the first specific processing on the image data D12 stored in the memory area 31D, and then transmits the first specific processed image data D12 from the memory area 31D to the image forming unit 13. do. The image forming unit 13 forms an image based on the image data D12 that has undergone the first specific processing on the sheet, and discharges the sheet after the image formation. The above is the details of the direct printing function.

When the information indicating the execution instruction of the copy function is transmitted from the operation unit 16B to the control unit 15, the control unit 15 executes the copy function. More specifically, the image reading unit 12 generates image data D10 representing the image of the original document conveyed by the ADF 11 and temporarily stores it in the memory area 31E. The copy processing unit 423C executes the first specific processing on the image data D10 stored in the memory area 31E, and then transmits the image data D10 that has undergone the first specific processing from the memory area 31E to the image forming unit 13. The image forming unit 13 forms an image based on the specified processed image data D10 on the sheet, and discharges the sheet after the image formation. The above is the details of the copying function.

The image data D10 and D12 are examples of the second data in the present invention.

In the first securing processing unit 41A, when the motion sensor 20 detects the user, the first print processing unit 421A is processing the image data D15 using the memory area 31A determined in the first capacity C1. If there is, the capacity of the memory area 31A is determined to be the second capacity C2 after the processing by the first print processing unit 421A is completed. Further, when the motion sensor 20 detects the user, the first securing processing unit 41A faxes when the fax processing unit 422A is processing using the memory area 31B determined to be the first capacity C1. After the processing by the processing unit 422A is completed, the capacity of the memory area 31B is determined to be the second capacity C2. As described above, since the capacity of the memory areas 31A and 31B is not changed from the first capacity C1 to the second capacity C2 during the processing by the first print processing unit 421A or the fax processing unit 422A, the capacities of the memory areas 31A and 31B are not changed. It is possible to reduce the possibility that the image data D14 and D15 overflow from the memory areas 31A and 31B due to the reduction in size.

When the motion sensor 20 detects the user, the determination processing unit 43 determines whether or not the amount of data of the image data D15 and D14 stored in the memory areas 31A and 31B exceeds the second capacity C2. .. When the determination processing unit 43 determines that the amount of data in the image data D15 and D14 is less than the second capacity C2, the first securing processing unit 41A sets the capacities of the memory areas 31A and 31B to the second capacity C2, respectively. decide. On the other hand, when the determination processing unit 43 determines that the image data D15 and D14 exceed the second capacity C2, the first securing processing unit 41A determines the capacity of the memory areas 31A and 31B to be the third capacity C3. The third capacity C3 is a capacity that is equal to or greater than the amount of data and is equal to or less than the first capacity C1. When the motion sensor 20 detects the user, the memory areas 31A and 31B may store image data D15 and D14 exceeding the second capacity C2. In this case, since the capacity is changed to the third capacity C3 in the memory areas 31A and 31B, the image data D14 and D15 are transferred from the memory areas 31A and 31B due to the reduction in the capacity of the memory areas 31A and 31B. The risk of overflow can be reduced.

Hereinafter, the procedure of the first example of the memory area securing process executed by the data processing device 10 will be described with reference to FIGS. 5, 6A, and 6B.

In step S11 of FIG. 5, the arithmetic processing unit 15A determines whether or not to receive the detection signal Sd from the motion sensor 20 after the main power of the data processing device 10 is turned on. When the arithmetic processing unit 15A determines that the detection signal Sd has not been received, it considers that the motion sensor 20 has not detected the user, and proceeds to the process in step S12A. When the arithmetic processing unit 15A determines that the detection signal Sd has not been received, it considers that the motion sensor 20 has detected the user, and proceeds to the process in step S13A.

In step S12A, the first reservation processing unit 41A reserves the memory areas 31A and 31B in the main storage unit 15C. In step S12A, the first securing processing unit 41A further determines the capacities of the memory areas 31A and 31B to be the first capacities C1 defined in the design and development stage of the data processing apparatus 10. The first capacitance C1 may be the same or different from each other between the memory areas 31A and 31B.

In step S12B, the arithmetic processing unit 15A records the absence information in the main storage unit 15C. After that, the arithmetic processing unit 15A advances the processing to step S14. The absence information is information indicating that the motion sensor 20 has not detected the user at the time of executing step S11.

In step S13A, the first reservation processing unit 41A reserves the memory areas 31A and 31B in the main storage unit 15C. In step S13A, the first securing processing unit 41A further determines the capacity of the memory areas 31A and 31B to be the second capacity C2 defined in the design and development stage. The second capacitance C2 may be the same or different from each other between the memory areas 31A and 31B.

In step S13B, the second reservation processing unit 41B reserves the memory areas 31C to 31E in the main storage unit 15C. In step S13B, the second securing processing unit 41B further determines the respective capacities of the memory regions 31C to 31E to the fourth capacities C4 defined in the design and development stage. The fourth capacitance C4 may be the same as each other in the memory areas 31C to 31E, or may be different from each other. In step S13B, the memory area 31F may be secured so that the screen based on the image data D11 can be displayed on the display unit 16A.

In step S13C, the arithmetic processing unit 15A records the location information in the main storage unit 15C. After that, the arithmetic processing unit 15A advances the processing to step S14. The location information is information indicating that the motion sensor 20 has detected the user at the time of executing step S11.

In step S14, does the arithmetic processing unit 15A receive the detection signal Sd from the motion sensor 20 after waiting for the first specific time defined in the design and development stage from the end of steps S12B, S13B, S15, and S16? Judge whether or not. When the arithmetic processing unit 15A determines that the detection signal Sd has not been received, the arithmetic processing unit 15A advances the processing to step S15. When the arithmetic processing unit 15A determines that the detection signal Sd is being received, the arithmetic processing unit 15A advances the processing to step S16.

In step S15, the arithmetic processing unit 15A determines whether the absence information is recorded or the location information is recorded in the main storage unit 15C. When the arithmetic processing unit 15A determines that the absence information is recorded, the motion sensor 20 does not continue to detect the user, and it is necessary to change the capacities of the memory areas 31A and 31B from the first capacities C1. It is assumed that there is no such thing, and the process returns to step S14. When the arithmetic processing unit 15A determines that the location information is recorded, the motion sensor 20 has transitioned from a state in which the motion sensor 20 has detected the user to a state in which the user has not detected the user, that is, the user is the data processing device. It is considered to be away from the front of 10. In this case, the arithmetic processing unit 15A returns the processing to step S12A. After the user leaves the front of the data processing device 10, he / she may return to the front of the data processing device 10 in a short time because he / she notices that he / she has forgotten to make a copy. Assuming such a case, the arithmetic processing unit 15A may return the processing to step S12A after waiting for the second specific time defined in the design and development stage.

In step S16, the arithmetic processing unit 15A determines whether the absence information is recorded or the location information is recorded in the main storage unit 15C. When the arithmetic processing unit 15A determines that the location information is recorded, it is considered that the motion sensor 20 continues to detect the user, and it is not necessary to change the capacities of the memory areas 31A to 31E. , The process returns to step S14. When the arithmetic processing unit 15A determines that the absence information is recorded, it is assumed that the motion sensor 20 has transitioned from the state in which the user is not detected to the state in which the user is detected, and the process proceeds to step S17.

In step S17, the determination processing unit 43 determines whether or not the first data processing unit 42A is executing processing. When the determination processing unit 43 determines that the first data processing unit 42A is not executing the processing, the determination processing unit 43 returns the processing to step S13A. On the other hand, when the determination processing unit 43 determines that the processing is being executed by the first data processing unit 42A, the determination processing unit 43 waits until the processing of the first data processing unit 42A is completed in step S18, and then performs the processing in step S13A. return.

According to the first example of the securing process, when the motion sensor 20 detects the user, the memory areas 31A to 31E are secured in the main storage unit 15C. In this case, as shown in FIG. 6A, the capacity of the memory areas 31A and 31B is determined to be the second capacity C2 (see step S13A), and the capacity of the memory areas 31C to 31E is determined to be the fourth capacity C4 (step). See S13B).

After that, when the motion sensor 20 does not detect the user, the memory areas 31A and 31B are secured in the main storage unit 15C. In this case, as shown in FIG. 6A, the capacities of the memory regions 31A and 31B are determined to be the first capacities C1 (see step S12A). The memory areas 31C to 31E are released.

After that, the motion sensor 20 detects the user again (YES in step S14), the absence information is recorded (see step S16), and the first data processing unit 42A is not executing the process. In that case (NO in step S17), as shown in FIG. 6A, memory areas 31A to 31E are secured in the main storage unit 15C (see steps S13A and 13B). On the other hand, when the human sensor 20 detects the user again, the absence information is recorded, and the first data processing unit 42A is executing the process (YES in step S17), FIG. 6B shows. As shown, after waiting until the processing of the first data processing unit 42A is completed, the memory areas 31A to 31E are secured in the main storage unit 15C (see steps S13A and 13B).

Hereinafter, the procedure of the second example of the memory area securing process executed by the control unit 15 will be described with reference to FIGS. 7A, 7B, and 8.

The flowcharts of FIGS. 7A and 7B are different from the flowchart of FIG. 5 in that they include steps S21, S22A, S22B, and S22C instead of steps S17 and S18. Other than that, since there is no difference between the flowcharts of FIG. 5 and FIGS. 7A and 7B, the same step number is assigned to the step corresponding to the step of FIG. 7 in FIG. 7, and the description of each is omitted. ..

In step S16 of FIG. 7A, when the arithmetic processing unit 15A determines that the absence information is recorded, the arithmetic processing unit 15A advances the processing to step S21.

In step S21, the determination processing unit 43 acquires the amount of data of the image data D15 and D14 currently stored in the memory areas 31A and 31B. The determination processing unit 43 further determines whether or not each of the data amounts exceeds the second capacity C2. When the determination processing unit 43 determines that the amount of data is less than the second capacity C2, the determination processing unit 43 returns the processing to step S13A. On the other hand, when the determination processing unit 43 determines that at least one of the data amounts exceeds the second capacity C2, the determination processing unit 43 proceeds to the process in step S22A of FIG. 7B.

In step S22A, the first reservation processing unit 41A reserves the memory areas 31A and 31B in the main storage unit 15C. In step S22A, the first securing processing unit 41A determines the capacity of the memory areas 31A and 31B to be the third capacity C3.

In step S22B, the second reservation processing unit 41B reserves the memory areas 31C to 31E in the main storage unit 15C. In step S22B, the second securing processing unit 41B further determines the respective capacities of the memory regions 31C to 31E to the fifth capacities C5 defined in the design and development stage. The fifth capacity C5 has a capacity smaller than at least the fourth capacity C4. Specifically, the fifth capacity C5 is a capacity of the fourth capacity C4- (the amount of data-2nd capacity C2) × 2/6. The memory area 31F may be secured in step S22B.

In step S22C, the arithmetic processing unit 15A records the location information in the main storage unit 15C. After that, the arithmetic processing unit 15A advances the processing to step S14.

According to the second example of the securing process, the memory areas 31A and 31B are secured in the main storage unit 15C when the motion sensor 20 does not detect the user. In this case, as shown in FIG. 8, the capacity of the memory areas 31A and 31B is determined to be the first capacity C1 (see step S12A in FIG. 7A). The memory areas 31C to 31E are released.

After that, the motion sensor 20 detects the user again (YES in step S14), determines that "absence information" is recorded in step S16, and at least one of the data amounts is the second capacity C2. If the value exceeds (YES in step S21), memory areas 31A to 31E are secured in the main storage unit 15C as shown in FIG. 8 (see steps S22A and 22B in FIG. 7B). The capacity of the memory areas 31A and 31B is determined to be the third capacity C3 (see step S22A in FIG. 7B). The capacity of the memory areas 31C to 31E is determined to be the fifth capacity C5 (see step S22B in FIG. 7B).

Next, FIG. 9 is a diagram showing a functional block of the arithmetic processing unit 15A of the data processing apparatus 10 according to the modified example. Since the arithmetic processing unit 15A of FIG. 9 differs from the arithmetic processing unit 15A shown in FIG. 4 only in the following two points, the reference numerals corresponding to those corresponding to the configuration shown in FIG. 4 in FIG. 9 are the same. , And the explanation of each is omitted.

The first difference is that the arithmetic processing unit 15A of FIG. 9 includes a third securing processing unit 41C and a storage processing unit 44. The second difference is that the arithmetic processing unit 15A of FIG. 9 does not include the determination processing unit 43.

The third securing processing unit 41C secures the memory area 31F (see FIG. 3) in the main storage unit 15C when the motion sensor 20 detects the user. The memory area 31F is an example of the third memory area in the present invention. The storage processing unit 44 stores the image data D11 representing the operation screen on which the user can perform a touch operation in the memory area 31F. The display unit 16A displays an image based on the image data D11 stored in the memory area 31F. The image data D11 is an example of the third data of the present invention. That is, when the motion sensor 20 detects the user, the third securing processing unit 41C can first secure the memory area 31F of the display unit 16A in the main storage unit 15C. As a result, the display unit 16A can quickly display the operation screen based on the image data D11 when the motion sensor 20 detects the user.

The second securing processing unit 41B secures the memory areas 31C to 31E after the third securing processing unit 41C secures the memory area 31F.

A procedure for securing a memory area in the data processing apparatus 10 according to the modified example will be described with reference to FIGS. 9, 10A, 10B, and 11.

The flowcharts of FIGS. 10A and 10B differ from the flowchart of FIG. 5 in that they include steps S31A, S31B, S31C, S32, S33, and S34 instead of step S18. Other than that, since there is no difference between the flowchart of FIG. 5 and the flowcharts of FIGS. 10A and 10B, the same step numbers are assigned to the steps corresponding to the steps of FIGS. 10A and 10B. , The explanation of each is omitted.

When the determination processing unit 43 determines that the first data processing unit 42A is executing the processing in step S17 of FIG. 10B, the processing proceeds to step S31A. On the other hand, when the determination processing unit 43 determines that the first data processing unit 42A is executing the processing in step S17, the third securing processing unit 41C advances the processing to step S34.

The third securing processing unit 41C reserves the memory area 31F in the main storage unit 15C so that the user can visually recognize the display unit 16A in step S31A of FIG. 10B. The third securing processing unit 41C determines the capacity of the memory area 31F to be the sixth capacity C6. The display unit 16A may display the operation screen based on the image data D11, and the data amount of the image data D11 is smaller than the data amount of other image data. Therefore, the sixth capacity C6 may be smaller than the fourth capacity C4 of the memory areas 31C to 31E.

Next, in step S31B of FIG. 10B, the storage processing unit 44 stores the image data D11 in the memory area 31F, and the display unit 16A reads the image data D11 from the memory area 31F, and the operation screen based on the image data D11. Is displayed.

Next, the arithmetic processing unit 15A records the location information in the main storage unit 15C in step S31C. After that, the arithmetic processing unit 15A advances the processing to step S32.

Next, in step S32, the arithmetic processing unit 15A determines whether or not a specific execution instruction, which is an execution instruction of any of the data storage function, the direct print function, and the copy function, has been received from the operation unit 16B. .. When the arithmetic processing unit 15A determines that the specific execution instruction has not been received, the arithmetic processing unit 15A returns the processing to step S17. When the arithmetic processing unit 15A determines that the specific execution instruction has been received, the arithmetic processing unit 15A advances the processing to step S33.

In step S33, the second reservation processing unit 41B secures a specific memory area, which is a memory area corresponding to the specific execution instruction, in the main storage unit 15C. The specific memory area is any one of the memory areas 31C, 31D, and 31E, and is another example of the second memory area in the present invention. Further, the second securing processing unit 41B determines the capacity of the specific memory area to be the fourth capacity C4. Specifically, when the second securing processing unit 41B receives the information indicating the execution instruction of the data storage function, the second securing processing unit 41B secures the memory area 31C as the specific memory area. When the second securing processing unit 41B receives the information indicating the execution instruction of the direct printing, the second securing processing unit 41B secures the memory area 31D as the specific memory area. Upon receiving the information indicating the execution instruction of the copying function, the second securing processing unit 41B secures the memory area 31E as the specific memory area.

After step S33, the second securing processing unit 41B returns the processing to step S17.

In step S34, the third securing processing unit 41C secures the memory area 31F in the main storage unit 15C in the same manner as in step S31A. After that, the third securing processing unit 41C advances the processing to step S13A of FIG. 10A.

By the securing process according to the modification, the human sensor 20 detects the user (YES in step S14 of FIG. 9A), the absence information is recorded (YES in step S16), and the first data. When the processing unit 42A is executing processing (YES in step S17 of FIG. 9B), as shown in FIG. 11A, a memory area 31F is secured in the main storage unit 15C (see step S31A). ). After that, when it is determined that the first data processing unit 42A is not executing the process (NO in step S17 of FIG. 9B), that is, when the process is completed, as shown in FIG. 11A. Memory areas 31A to 31E are secured (steps S13A and S13B in FIG. 9A).

On the other hand, after the memory area 31F is secured in the main storage unit 15C (see step S31A), the arithmetic processing unit 15A is instructed to execute the specific execution (for example, by the time the processing of the first data processing unit 42A is completed). The copy process execution instruction) may be received (YES in step S32). In this case, as shown in FIG. 11B, the memory area 31E which is an example of the specific memory area and corresponds to the copying process is secured.

10: Data processing device 15: Control unit 15A: Processing unit 41A: First securing processing unit 41B: Second securing processing unit 41C: Third securing processing unit 42A: First data processing unit 42B: Second data processing unit 43: Judgment processing unit 44: Memory processing unit 15C: Main memory unit 20: Human sensor

Claims (6)

Memory part and
A motion sensor that can detect people and
Based on the detection result of the motion sensor, the first securing processing unit that secures the first memory area for the first device away from the data processing device in the memory section, and
A first data processing unit that processes the first data transmitted from the first apparatus using the first memory area is provided.
The first securing processing unit is
When the human sensor does not detect the person, the capacity of the first memory area is determined to be the first capacity.
When the motion sensor detects the person, the capacity of the first memory area is determined to be a second capacity smaller than the first capacity.
Data processing device. A second securing processing unit that secures a second memory area in the memory unit when the motion sensor detects the person, and a second securing processing unit.
A second data processing unit that processes the second data transmitted by the second device provided in the data processing device using the second memory area is further provided.
The data processing apparatus according to claim 1. When the human sensor detects the person, the first securing processing unit uses the first memory area determined to be the first capacity, and the first data processing unit outputs the first data. When processing is in progress, the capacity of the first memory area is determined to be the second capacity after the processing by the first data processing unit is completed.
The data processing apparatus according to claim 1 or 2. Further provided with a determination processing unit for determining whether or not the amount of data of the first data stored in the first memory area exceeds the second capacity when the motion sensor detects the person. ,
The first securing processing unit is
When the determination processing unit determines that the amount of data is less than the second capacity, the capacity of the first memory area is determined to be the second capacity.
When the determination processing unit determines that the amount of data exceeds the second capacity, the capacity of the first memory area is determined to be a third capacity that is equal to or greater than the amount of data and is equal to or less than the first capacity.
The data processing apparatus according to any one of claims 1 to 3. A third securing processing unit that secures a third memory area in the memory unit when the motion sensor detects the person, and a third securing processing unit.
A storage processing unit that stores the third data in the third memory area,
A display unit provided in the data processing device and displaying an image based on the third data stored in the third memory area is further provided.
The data processing apparatus according to claim 2. The second reservation processing unit secures the second memory area in the memory unit after the third reservation processing unit secures the third memory area.
The data processing apparatus according to claim 5.

Images