JP2019057919A - Image processing device and control method therefor - Google Patents

Abstract

To prevent generation of an unnecessary return from a power saving state by user's detection of a human detection sensor after transition to a power saving state with a power saving key depressed.SOLUTION: A power supply control section 203 of an image processing device 100 transits from a power saving mode to a normal power mode according to detection of an object by a second human detection sensor 231. However, when it is transited to the power saving mode by depressing a power saving key 214 (S11→S12→S14), a human detection sensor return determination section 281 restricts transition to the normal power mode according to the detection of the object by a second human detection sensor 231 (S15→S16→S18).SELECTED DRAWING: Figure 6

Description

  The present invention relates to power mode switching control of an image processing apparatus using human body detection technology.

  A conventional image processing apparatus has a plurality of power modes and supports a power saving mode in which the power source in the apparatus is turned off according to the power modes. However, it may take time to return from the power saving mode to the normal power mode, which may reduce convenience.

  In order to solve this problem, there is one that uses a human sensor to return from the conventional power saving mode and returns from the power saving mode when it is determined that a person has approached the device (see Patent Document 1). .

  There is also known an image processing apparatus provided with a power saving key that is pressed by a user's operation (see Patent Document 2). When the power saving key is pressed by the user, the image processing apparatus shifts to a power saving mode.

JP 2012-58645 A JP 2002-229395 A

  However, in the techniques described in Patent Document 1 and Patent Document 2, the image processing apparatus may receive an instruction to shift to the power saving mode when the power saving key is pressed while the human sensor detects a person. is there. In this case, the image processing apparatus shifts to the power saving mode when the power saving key is pressed, but the user in front of the image processing apparatus (the user who pressed the power saving key) is detected by the human sensor. For this reason, the image processing apparatus returns to the normal power mode even when the power saving key is pressed, and there is a problem that power saving cannot be realized.

  The present invention has been made to solve the above problems. An object of the present invention is to provide a mechanism for preventing an unnecessary return from a power saving state by detection of a human sensor after a power saving key is pressed.

  The present invention is an image processing apparatus that can operate by switching at least a first power state and a second power state that consumes less power than the first power state. An instruction means for receiving an instruction to shift to a second power state, a detection means for detecting an object, and a transition from the second power state to the first power state in response to detection of the object by the detection means Power control means for controlling the power state of the image processing apparatus, wherein the power control means changes from the first power state to the second power state in response to a transition instruction by the instruction means. The shift to the first power state according to the detection of the object by the detection means is limited until the detection means no longer detects the object.

  ADVANTAGE OF THE INVENTION According to this invention, the unnecessary return from a power saving state by the detection of the human sensor after the power saving key is pressed can be prevented.

1 is a diagram illustrating the configuration of an image processing apparatus showing Embodiment 1 of an electronic apparatus according to the invention. The figure which illustrates the detection range of a 1st human sensor and a 2nd human sensor. FIG. 2 is a diagram illustrating a hardware configuration of the image processing apparatus according to the first embodiment. FIG. 4 is a diagram illustrating a power supply mode of the image processing apparatus according to the first embodiment. FIG. 3 is a diagram illustrating a configuration of a human sensor return determination unit according to the first embodiment. 3 is a flowchart illustrating a power mode transition operation according to the first embodiment. FIG. 10 is a diagram illustrating a power supply mode of the image processing apparatus according to the second embodiment. The figure which illustrates the structure of the human sensor return determination part of Example 2. FIG. 9 is a flowchart illustrating a power mode transition operation according to the second embodiment. FIG. 6 is a diagram illustrating a configuration of an image processing apparatus according to a third embodiment. The figure which illustrates the detection range of a human sensitive sensor array. The figure which illustrates reaction of a human sensitive sensor array. FIG. 4 is a diagram illustrating a hardware configuration of an image processing apparatus according to a third embodiment. FIG. 10 is a diagram illustrating a power supply mode of the image processing apparatus according to the third embodiment. FIG. 6 is a diagram illustrating a configuration of a human sensor array determination unit according to a third embodiment. 9 is a flowchart illustrating a power mode transition operation according to the third embodiment.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing an example of the configuration of an image processing apparatus showing Embodiment 1 of the electronic apparatus according to the invention. 1A corresponds to a view of the image processing apparatus viewed from the front, and FIG. 1B corresponds to a view of the image processing apparatus viewed from the top.

  Reference numeral 100 denotes an image processing apparatus as an electronic apparatus according to the present invention. The image processing apparatus 100 includes an operation unit 101, a scanner 102, an in-body finisher 103, a paper feed cassette 104, and the like, and has functions such as copy, print, FAX, and scan.

  The image processing apparatus 100 switches between the normal power mode, the second power saving mode in which power consumption is lower than that in the normal power mode, and the first power saving mode in which power consumption is lower than that in the second power saving mode. Can work. Note that the power states of the image processing apparatus 100 in the normal power mode, the first power saving mode, and the second power saving mode are referred to as a first power state, a second power state, and a third power state, respectively. The image processing apparatus 100 is an image processing apparatus that can operate by switching at least a first power state and the second power state.

  Further, the image processing apparatus 100 includes a first human sensor 230 that operates in the first power saving mode and a second human sensor 231 that operates in the second power saving mode. As the first human sensor 230 and the second human sensor 231, sensors that detect an object in a remote place such as a pyroelectric sensor or a reflection sensor are used.

  The first human sensor 230 is a first detection unit that detects a person approaching the image processing apparatus 100 over a wide range. For example, the first human sensor 230 includes a pyroelectric sensor and can detect an object such as a human body. It is. The second human sensor 231 is a second detection unit that detects a person approaching the image processing apparatus 100 in a narrower range than the first human sensor 230, and is configured by, for example, a reflection sensor. An object such as a human body can be detected. An example of the detection range of the first human sensor 230 and the second human sensor 231 is shown in FIG.

FIG. 2 is a diagram illustrating an example of a detection range of the first human sensor 230 and the second human sensor 231. 2A corresponds to a view of the image processing apparatus 100 viewed from the front, and FIG. 2B corresponds to a view of the image processing apparatus 100 viewed from the top.
2A and 2B, reference numeral 111 denotes a detection range of the first human sensor 230. FIG. Reference numeral 112 denotes a detection range of the second human sensor 231.

FIG. 3A is a block diagram illustrating an example of a hardware configuration of the image processing apparatus 100 according to the first embodiment.
The information processing device 226 is connected to the LAN 224 via the LAN I / F 217 and connected to the telephone line 223 via the FAX 225.

  The CPU 204 executes a software program that controls the entire information processing apparatus 226. The RAM 206 is used for temporarily storing data when the CPU 204 controls the apparatus. The ROM 205 stores a program executed by the CPU 204, such as a device startup program and various setting values. The storage 207 is a storage device such as an HDD or an SSD, and is used for storing various data.

  The operation unit I / F 209 controls the operation unit from the CPU 204. The operation unit 213 includes hard keys including an operation liquid crystal panel and a power saving key 214, and receives instructions input from the user.

  The scanner I / F 210 controls the scanner 215 from the CPU 204. The scanner 215 reads an image of a document placed on a document table or an ADF (Auto Document Feeder) and generates an image. A printer I / F 211 controls the printer from the CPU 204. The printer 216 prints an image based on the image data on paper.

  A FAX I / F 208 controls the FAX 225 from the CPU 204. The FAX 225 includes a modem 218, a CPU 219, a RAM 221, a ROM 220, and a reception detection unit 222. The image processing apparatus 100 performs data communication control with an external apparatus connected to the telephone line 223 via the FAX 225. The modem 218 performs modulation for transmission / reception of the FAX 225. The CPU 219 controls transmission / reception of the FAX 225 in cooperation with the information processing apparatus 226 via the FAX I / F 208. The RAM 221 is used for temporary data storage when the CPU 219 controls the apparatus. The ROM 220 stores a startup program for the FAX 225 device, various setting values, and the like. The functions of the CPU 219 of the FAX 225, the RAM 221, and the ROM 220 may be provided in the information processing apparatus 226.

  The LAN controller 212 controls the LAN I / F 217 from the CPU 204. The image processing apparatus 100 performs data communication control with an external apparatus connected to the network 224 via the LAN I / F 217.

  The power supply control unit 203 has a power control function for performing control to supply power from the power supply unit 202 to a necessary location. In the normal power mode, power is supplied to all blocks as shown in FIG. At this time, it may take a form in which power is supplied only to a necessary function, but it is not specified here.

  In the first power saving mode, power is supplied to some blocks as shown in FIG. In FIG. 3B, no power is supplied to the grayed out portion.

Hereinafter, the power supply state in the first power saving mode will be described.
First, power is supplied from the power supply 201 to the power supply unit 202. The blocks supplied with power from the power supply unit 202 include the RAM 206, the first human sensor 230, the human sensor return determination unit 281, the FAX I / F 208, the reception detection unit 222, the power saving key 214, the operation unit IF 209, and the LAN controller 212. , LAN I / F 217. The RAM 206 supplies power as necessary, and does not need to be supplied to all. Although it has been described that the power supply to the operation unit 213 is only the power saving key 214, the power supply may be supplied in accordance with a transition condition to another power state such as a function of recognizing a user's touch.

Next, conditions for shifting from the first power saving mode to the normal power mode will be described.
When the reception detection unit 222 detects FAX reception, the transfer instruction is transmitted from the reception detection unit 222 to the power supply control unit 203 via the FAX I / F 208, and the mode is shifted to the normal power mode. When the LAN controller 212 receives a job such as a print job that needs to be shifted to the normal power mode from the LAN I / F 217, the LAN controller 212 transmits a shift command to the power supply control unit 203 to shift to the normal power mode. .

  When it is detected that the power saving key 214 is pressed by the user, a shift command is transmitted to the power supply control unit 203 via the operation unit I / F 209, and the mode is shifted to the normal power mode. Although the operation unit 213 describes a case where power is supplied only to the power saving key 214, the operation unit 213 may be configured to recognize a user's touch and transmit an interrupt to the power control unit 203. As for the transition condition to the normal power mode described so far, the detailed flow according to the present invention and the description in the second power saving mode are omitted, but the power supply control unit 203 receives the transition command in the middle of the flow. In this case, it goes without saying that the mode is shifted to the normal power mode.

Next, the transition conditions from the first power saving mode to the second power saving mode will be described.
When the first human sensor 230 detects that a person is approaching, the first human sensor 230 transmits a command to shift to the second power saving mode from the first human sensor 230 to the power control unit 203, and Transition to the second power saving mode. In the second power saving mode, power is supplied to some blocks as shown in FIG. In FIG. 3C, no power is supplied to the grayed out portion.

Next, the difference between the second power saving mode and the first power saving mode will be described.
In the second power saving mode, power is supplied to the second human sensor 231. While the first human sensor 230 is detecting a person, the second power saving mode is continued. If the first human sensor 230 cannot detect a person, it transmits a command to shift to the first power saving mode to the power control unit 203 and shifts to the first power saving mode. When the second human sensor 231 detects the approach of a person, it transmits a command to shift to the normal power mode to the power control unit 203 via the human sensor return determination unit 281 and shifts to the normal power mode. To do. Although details will be described later, the human sensor return determination unit 281 restricts a signal (the above-described command to shift to the normal power mode) from the second human sensor 231 to the power control unit 203 under a predetermined condition. To do.

Hereinafter, the power mode transition using the human sensor will be described in detail with reference to FIG.
FIG. 4 is a diagram illustrating an example of a power supply mode of the image processing apparatus 100 according to the first embodiment.
The power input from the power source 201 is connected to switches (hereinafter SW) 310 and SW 312. The SW 310 includes a power control unit 203 or a seesaw switch or a button switch that can be manually turned on by the user.

  When the SW 310 is turned on, the power supply control unit 203 may automatically transmit an on command 512 to the SW 311 and an on command 513 to the SW 312 to shift to the normal power mode. The first power supply unit 300 to which power is supplied when the SW 310 is turned on supplies power to the block operating in the first power saving mode. In FIG. 4, the FAX I / F 208 and the operation unit I / F 209 are omitted, but these are also supplied with power from the first power supply unit 300.

  When the SW 311 is turned on, the second power supply unit 301 is fed using the first power supply unit 300. The second power supply unit 301 supplies power to the block that operates in the second power saving mode. The condition for shifting from the first power saving mode to the second power saving mode is when the first human sensor 230 detects a person. SW311 and SW312 can be realized by FETs, relay switches, or the like.

  When the first human sensor 230 detects a person, the first human sensor 230 transmits a request signal 511 to turn on the SW 311 to the power supply control unit 203. When the power supply control unit 203 receives the request signal 511, the power supply control unit 203 transmits an ON command 512 to the SW 311 to supply power to the second power supply unit 301.

  Next, conditions for shifting to the normal power mode will be described. When the power control unit 203 receives even one request signal that needs to shift to the normal power mode, the power control unit 203 shifts to the normal power mode. Hereinafter, the request signal for the normal mode will be described.

  The LAN controller 212 transmits a request command 501 to the power supply control unit 203 when receiving a command such as a print job that needs to shift to the normal power mode. Also, the reception detection unit 222 transmits a request command 502 to the power supply control unit 203 when detecting reception of a FAX. Further, when the power saving key 214 is pressed by the user, the power saving key 214 transmits a request command 503 to the power control unit 203. When the power saving key 214 is pressed, the power saving key 214 outputs a signal 530 for invalid flag processing to the human sensor return determination unit 281.

  When the power supply control unit 203 receives any of the above-described transition request signals, the power supply control unit 203 transmits an ON command 513 to the SW 312 and the third power supply unit 302 is powered. The third power supply unit 302 supplies power to the block used in the normal power mode. In FIG. 4, the scanner I / F 210 and the printer I / F 211 are omitted, but these are also supplied with power from the third power supply unit 302. The power supplied from the power supply 201 is divided into three types, the first power supply unit 300, the second power supply unit 301, and the third power supply unit 302.

  Next, the output of the transition request signal 504 based on the second human sensor 231 will be described. When the second human sensor 231 detects a person, the second human sensor 231 transmits a detection signal 531 to the human sensor return determination unit 281. The human sensor return determination unit 281 uses the power saving key 214 to determine whether the person who has instructed the shift to the power saving mode has left the image processing apparatus 100, and from the power saving mode by the second human sensor 231. Perform a return limit for.

  In the present embodiment, when the power saving key 214 is instructed to shift to the power saving mode and the human sensor (for example, the first human sensor 230) continues to detect the human, the human sensor is restored. The determination unit 281 limits the output of the migration request signal 504. In addition, when a transition is made to the power saving mode other than the power saving key 214, or when the human sensor is not detected after the power saving mode 214 is shifted to the power saving mode 214, the human sensor return determination unit 281 indicates the transition request signal 504. Release the output restriction. Whether or not the human sensor detects a person is determined by transmission from the power supply control unit 203, but is determined by transmitting a signal from the human sensor to the human sensor return determination unit 281. May be.

  The human sensor is the first human sensor 230. However, in the determination by the human sensor return determination unit 281, the person who has instructed the image processing apparatus 100 to shift to the power saving mode using the power saving key 214. It suffices if it is possible to determine that has left. Therefore, in the determination of the human sensor return determination unit 281, the detection state of either the first human sensor 230 or the second human sensor 231, or both may be used as a determination criterion. In the following description, it is assumed that the human sensor return determination unit 281 limits the transition request signal 504 when the first human sensor 230 continues detection.

Hereinafter, details of output restriction of the transition request signal 504 by the human sensor return determination unit 281 will be described with reference to FIG.
FIG. 5 is a diagram illustrating an example of the configuration of the human sensor return determination unit 281 according to the first embodiment.
When the power saving key 214 is pressed, a signal 530 is output from the power saving key 214 to the invalid flag 600. The signal 530 is used to limit the output of the request signal 504 for shifting to the normal power mode based on the second human sensor 231. When the power saving key 214 is pressed, a power saving mode shift instruction (not shown) is output from the power saving key 214, and when the power control unit 203 receives this instruction, the power saving mode 214 shifts to the power saving mode.

  When shifting to the power saving mode by the power saving mode shift instruction from the power saving key 214, the power supply control unit 203 limits the shift request signal 504 while the first human sensor 230 is detecting a person. The signal 532 is continuously output to the invalid flag 600. Note that the signal 532 may be a detection signal of the first human sensor 230.

  The invalid flag 600 sets a signal (hereinafter, human sensor invalid flag) 599 to “1” by default. When the signal 530 is received from the power saving key 214, the invalid flag 600 keeps the human sensor invalid flag 599 at “0” until the signal 532 is not received. Further, when the signal 532 is not received, the invalid flag 600 returns the human sensor invalid flag 599 to “1”. The human sensor invalid flag 599 is kept at “1” until the signal 530 is received again. When the logic 601 receives the signal 531 from the second human sensor 231 in a state where the human sensor invalid flag 599 is “1”, the request signal 504 to shift to the normal power mode based on the second human sensor 231. Is output to the power supply control unit 203.

FIG. 6 is a flowchart illustrating an example of the power mode transition operation in the image processing apparatus according to the first embodiment.
In the image processing apparatus 100, when the power saving key 214 is pressed (Yes in S11), the signal 530 is output from the power saving key 214 to the invalid flag 600, and the invalid flag 600 sets the human sensor invalid flag 599 to “0”. (S12). When the human sensor invalid flag 599 is “0”, the transition request signal 504 from the human sensor return determination unit 281 to the normal power mode is limited. When the power saving key 214 is pressed, the power supply control unit 203 performs a process for shifting to the power saving mode (S14). The power saving mode to be transferred may be the first power saving mode or the second power saving mode.

  Even when the power saving key 214 is not pressed (No in S11) and the power saving mode transition condition other than the power saving key 214 is satisfied (Yes in S13), the power supply control unit 203 enters the power saving mode. (S14). In this case, the human sensor invalid flag 599 is “1”. When the human sensor invalid flag 599 is “1”, the transition request signal 504 from the human sensor return determination unit 281 to the normal power mode is not limited. The power saving mode transition condition other than the power saving key 214 is, for example, that the image processing apparatus 100 has not been used for a certain period of time.

  After shifting to the power saving mode, the power supply control unit 203 determines whether or not the first human sensor 230 detects a person (S40). If it is determined that the first human sensor 230 is detecting a person (Yes in S40), the process proceeds to S41, and if it is not detected, the process proceeds to S42.

  In S41, if the power mode at that time is the first power saving mode, the power supply control unit 203 shifts to the second power saving mode and supplies power to the second human sensor 231. If the power mode is the second power saving mode, the power state is continued.

  In S42, if the power mode at that time is the second power saving mode, the power supply control unit 203 shifts to the first power saving mode and stops the power supply to the second human sensor 231. If the power mode at that time is the first power saving mode, the power state is continued.

  When the human sensor invalid flag 599 is “1” (No in S15), the human sensor return determination unit 281 generates a transition request signal 504 in response to the detection signal 531 from the second human sensor 231. Can be output to the power supply control unit 203.

  When the human sensor invalid flag 599 is “0” (Yes in S15), the invalid flag 600 changes the human sensor invalid flag 599 according to the signal 532 from the power supply control unit 203 based on the detection state of the human sensor. Control. Since the human sensor described in S15 is used to determine whether the user who pressed the power saving key 214 has left the image processing apparatus 100, the human sensor may be the first human sensor 230 or the second person. The sense sensor 231 may be used. Or you may use for determination of both the 1st human sensor 230 and the 2nd human sensor 231. FIG.

  When the human sensor is in the detection state (No in S16), the output of the signal 532 is maintained from the power supply control unit 203, whereby the invalid flag 600 maintains the human sensor invalid flag 599 at “0”. . When the human sensor invalid flag 599 is “0”, the human sensor return determination unit 281 transmits the transition request signal 504 to the power control unit 203 even if the detection signal 531 is input from the second human sensor 231. do not do.

  On the other hand, when the human sensor is not detected (Yes in S16), the output of the signal 532 from the power supply control unit 203 is stopped, whereby the invalid flag 600 sets the human sensor invalid flag 599 to “1”. (S17).

  When the human sensor invalid flag 599 is “1” (No in S15), the invalid flag 600 is a signal 532 from the power supply control unit 203 based on the detection state of the human sensor (here, the first human sensor 230). Regardless of whether the human sensor invalid flag 599 is maintained at "1". When the human sensor invalid flag 599 is “1”, the human sensor return determination unit 281 transmits the transition request signal 504 to the power control unit 203 when the detection signal 531 is input from the second human sensor 231. To do.

  When the power supply control unit 203 does not receive the request signal 511, 501, 502, 503, or 504, it determines that the normal power mode transition condition is not satisfied (No in S18), and again by the first human sensor 230. Detection is determined (S40).

  On the other hand, when the request signals 511, 501, 502, 503, or 504 are received, the power supply control unit 203 determines that the normal power mode shift condition is satisfied (Yes in S18), and shifts to the normal power mode (S19). ).

  When the human sensor invalid flag 599 is “0”, the human sensor return determination unit 281 does not output the transition request signal 504 to the normal power mode, and thus the second human sensor 231 detects a person. However, it does not satisfy the normal power mode transition condition. On the other hand, when the human sensor invalid flag 599 is “1”, the output of the transition request signal 504 to the normal power mode is not limited. Therefore, when the second human sensor 231 detects a person, the normal power mode is set. The transition conditions are met.

  As described above, when the power saving key 214 is pressed and the mode is shifted to the power saving mode, the human power sensor switches from the power saving mode to the normal power mode until the user who presses the power saving key 214 leaves the image processing apparatus 100. The transition to can be restricted. Therefore, an unnecessary return from the power saving state due to the detection of the human sensor after the power saving key is pressed can be prevented. As a result, it is possible to reduce unnecessary power consumption and prolong the life of device parts having a lifetime while improving user convenience.

  In the above description, the configuration is shown in which the human sensor return determination unit 281 limits the output of the transition request signal 504 and restricts the return to the normal power mode by the detection of the second human sensor 231. However, the human sensor return determination unit 281 may not be provided, and the power supply control unit 203 may directly limit the return to the normal power mode by the detection of the second human sensor 231. In this case, the detection signal 531 of the second human sensor 231 is directly input to the power control unit 203. Then, when the power saving key 214 is pressed and the human sensor (for example, the first human sensor 230) is detected, the power supply control unit 203 can detect whether the detection signal 531 is input to the power supply control unit 203. The power supply control unit 203 is configured to be ignored. Hereinafter, a description will be given using the flowchart of FIG. In this case, each process shown in FIG. 6 is realized by the power supply control unit 203 reading and executing a program stored in a storage device (not shown) in the power supply control unit 203.

  In S11, the power supply control unit 203 determines whether or not the power saving key 214 has been pressed. If it is determined that the power saving key 214 has been pressed (Yes in S11), the power supply control unit 203 proceeds to S12. In S12, the power supply control unit 203 sets the human sensor invalid flag to “0”, and proceeds to S14. This flag is stored in a storage unit (not shown) in the power supply control unit 203 and is “1” by default.

  On the other hand, when it is determined in S11 that the power saving key 214 has not been pressed (No in S11), the power supply control unit 203 proceeds to S13. In S13, the power supply control unit 203 determines whether or not a condition for shifting to the power saving mode is satisfied. Note that the determination of the condition for shifting to the power saving mode itself is performed by the CPU 204, and upon receiving an instruction for shifting to the power saving mode from the CPU 204, the power supply control unit 203 determines that the condition for shifting to the power saving mode is satisfied.

  In S13, when it is determined that the conditions for shifting to the power saving mode are not satisfied (No in S13), the power supply control unit 203 proceeds to S11. On the other hand, when it determines with satisfy | filling the conditions for transfer to power saving mode (in the case of Yes in S13), the power supply control part 203 transfers to S14.

  In S14, the power supply control unit 203 performs processing for shifting the power mode to the power saving mode, and proceeds to S40. This power saving mode may be the first power saving mode or the second power saving mode.

  In S40, the power supply control unit 203 determines whether or not the first human sensor 230 detects a person. If the first human sensor 230 detects a person, the process proceeds to S41, and if not, the process proceeds to S42.

  In S41, if the power mode at that time is the first power saving mode, the power supply control unit 203 shifts to the second power saving mode and supplies power to the second human sensor 231, while In the power saving mode, the power state is continued and the process proceeds to S15.

  In S42, if the power mode at that time is the second power saving mode, the power supply control unit 203 shifts to the first power saving mode and stops the power supply to the second human sensor 231. If it is the first power saving mode, the power state is continued and the process proceeds to S15.

  In S15, the power supply control unit 203 determines whether or not the human sensor invalid flag is “0”. If the human sensor invalid flag is determined to be “0” (Yes in S15), the process proceeds to S16, and if the human sensor invalid flag is determined to be “1” (No in S15), S18. Migrate to

  In S16, the power supply control unit 203 determines whether or not a human sensor (for example, the first human sensor 230) is not detected. If the human sensor determines that a person is not detected (Yes in S16), the power supply control unit 203 determines that the user who pressed the power saving key has left, and sets the human sensor invalid flag to “1”. (S17), the process proceeds to S40. On the other hand, when it is determined in S16 that the human sensor has detected a person (No in S16), the power supply control unit 203 proceeds to S18.

  In S18, the power supply control unit 203 determines whether or not the normal power mode transition condition is satisfied. When the human sensor invalid flag is “1” and the signal 531, 511, 501, 502, or 503 is received, the power supply control unit 203 determines that the normal power mode transition condition is satisfied and shifts. On the other hand, when the human sensor invalid flag is “0”, the power supply control unit 203 determines that the normal power mode transition condition is satisfied when the signal 511, 501, 502, or 503 is received. However, in this case, when receiving the signal 531, the power supply control unit 203 determines that the normal power mode transition condition is not satisfied. That is, when the human sensor invalid flag is “1”, the transition to the normal power mode based on the detection by the second human sensor 231 is restricted.

  When the power supply control unit 203 determines that the normal power mode transition condition is not satisfied (No in S18), the power control unit 203 proceeds to S40. On the other hand, when it determines with satisfy | filling the normal power mode transfer conditions (in the case of Yes in S18), the power supply control part 203 performs transfer to a normal power mode (S19).

  In addition, when an instruction to shift to the power saving mode is given from the power saving key 214 and the first human sensor 230 continues to detect the person, the power supply of the second human sensor 231 is stopped and the second human sensor 231 is stopped. The return to the normal power mode by the detection of the human sensor 231 may be limited.

  In the second embodiment, the outline of the difference from the first embodiment will be described. In the first embodiment, the image processing apparatus 100 detects that the user who pressed the power saving key 214 has left and restricts the transition to the unnecessary normal power mode. In the second embodiment, when there is no job after shifting to the normal power mode, it is determined that the normal power mode is restored due to erroneous detection, and the normal operation is performed until the user who presses the power saving key 214 leaves the image processing apparatus 100. The transition to the power mode is limited.

Hereinafter, differences from the first embodiment will be described.
The difference from FIG. 4 will be described with reference to FIG. 7 regarding the power mode transition using the sensor.
FIG. 7 is a diagram illustrating an example of a power supply mode of the image processing apparatus 100 according to the second embodiment.
In the second embodiment, when a job is performed after shifting to the normal power mode, the CPU 204 transmits a signal 533 to the human sensor return determination unit 281. The signal 533 is used to validate the output of the transition request signal 504 based on the human detection of the second human sensor 231.

FIG. 8 is a diagram illustrating an example of the configuration of the human sensor return determination unit 281 according to the second embodiment.
When there is no job after the transition to the normal power mode and the power saving key 214 is pressed, the CPU 204 outputs a signal 533 to the invalid flag 600. When the invalid flag 600 receives the signal 533, the invalid flag 600 changes the job flag stored in a storage unit (not shown) in the invalid flag 600 to “1”. The job flag is “0” by default. When the job flag is “0”, when the invalid flag 600 receives the signal 530 from the power saving key 214, the invalid flag 600 maintains the human sensor invalid flag 599 at “0” until the signal 532 is not received. On the other hand, when the job flag is “1”, the invalid flag 600 maintains the human sensor invalid flag 599 at “1” even when the signal 530 is received from the power saving key 214. Other configurations are the same as those in FIG.

FIG. 9 is a flowchart illustrating an example of a power mode transition operation in the image processing apparatus according to the second embodiment.
The CPU 204 outputs a signal 533 to the invalid flag 600 when a job such as copying or scanning is performed after the transition to the normal power mode (S20) (Yes in S21). When the signal 533 is received, the invalid flag 600 sets the job flag to “1”. On the other hand, if a job such as copying or scanning has not been performed after the transition to the normal power mode (S20) (No in S21), the CPU 204 does not output the signal 533. The invalid flag 600 keeps the job flag at “0” when the signal 533 is not received.

  When the power saving key 214 is pressed (Yes in S11), a signal 530 is output from the power saving key 214 to the invalid flag 600. When the invalid flag 600 receives the signal 530 and determines that the job flag is “0” (Yes in S24), the invalid sensor 599 sets the human sensor invalid flag 599 to “0” (S12).

  On the other hand, even if the invalid flag 600 receives the signal 530, if the job flag is determined to be “1” (No in S24), the human sensor invalid flag 599 is maintained at “1”. Subsequent operations are the same as those in FIG.

  As described above, it is possible to determine whether or not there has been a job after the transition to the normal power mode, and to determine whether or not the transition to the normal power mode has occurred due to erroneous detection, and to control the transition of the power mode, Transition to the unnecessary normal power mode can be restricted. Therefore, an unnecessary return from the power saving state due to the detection of the human sensor after the power saving key is pressed can be prevented. As a result, it is possible to reduce unnecessary power consumption and prolong the life of device parts with a long life.

  In the above description, the configuration is shown in which the human sensor return determination unit 281 limits the output of the transition request signal 504 and restricts the return to the normal power mode by the detection of the second human sensor 231. However, the human sensor return determination unit 281 may not be provided, and the power supply control unit 203 may directly limit the return to the normal power mode by the detection of the second human sensor 231. In this case, only differences from the first embodiment will be described. In this case, the signal 533 from the CPU 204 is directly input to the power control unit 203, and the job flag is stored in the power control unit 203. When the power saving key 214 is pressed and the job flag is determined to be “0”, the power control unit 203 is configured to ignore the detection signal 531 even if the detection signal 531 is input to the power control unit 203. To do. Hereinafter, a description will be given with reference to the flowchart of FIG. In this case, each process shown in FIG. 9 is realized by the power supply control unit 203 reading and executing a program stored in a storage device (not shown) in the power supply control unit 203.

  When receiving the signal 533 from the CPU 204, the power control unit 203 determines that a job such as copying or scanning has been performed after the transition to the normal power mode (S20) (Yes in S21), and sets the job flag to “1” ( S22), the process proceeds to S11. On the other hand, if the signal 533 is not received from the CPU 204 after the normal power mode shift (S20), the power supply control unit 203 determines that a job such as copying or scanning has not been performed after the normal power mode shift (S20). (No in S21). In this case, the power supply control unit 203 keeps the job flag “0” (S23), and proceeds to S11.

  In S11, when the power supply control unit 203 determines that the power saving key 214 has been pressed (Yes in S11), the process proceeds to S24. In S24, the power supply control unit 203 determines whether or not the job flag is “0”. If the job flag is determined to be “0” (Yes in S24), the power supply control unit 203 sets the human sensor invalid flag to “0” and proceeds to S14. On the other hand, when it is determined that the job flag is not “0” (No in S24), the power supply control unit 203 maintains the human sensor invalid flag at “1”, and proceeds to S14. Since the subsequent operation is the same as that of the first embodiment, the description thereof is omitted.

  The third embodiment of the present invention will be outlined with respect to differences from the first embodiment. In the first embodiment, two human sensors are used to restrict unnecessary transition to the normal power mode when the power mode is shifted. In the third embodiment, a human sensor array in which infrared sensors are arranged in a matrix is used as the human sensor, thereby restricting the transition to the normal power mode which is unnecessary with one human sensor. Hereinafter, differences from the first embodiment will be described.

FIG. 10 is a diagram illustrating an example of the configuration of the image processing apparatus according to the third embodiment. 10A corresponds to a view of the image processing apparatus viewed from the front, and FIG. 10B corresponds to a view of the image processing apparatus viewed from the top.
As illustrated in FIG. 10, the image processing apparatus according to the third embodiment includes a human sensor array 280.

FIG. 11 is a diagram illustrating an example of the detection range 115 of the human sensor array 280.
The human sensor array 280 is used as a trigger for transition from the power saving mode to the normal power mode. The human sensor array 280 includes infrared sensors arranged in a matrix. The sensor detection range is divided into a plurality of areas, and an object such as a human body can be detected for each area. The human sensor array 280 detects that a person is approaching, and can detect not only whether the person is in the area but also the details of the movement of the person.

  Note that the human sensor array determination unit 282 can acquire the position of the region where the human sensor is detected by the human sensor array 280 from the human sensor array 280 as the region position information. The human sensor array 280 is an array of infrared sensors such as pyroelectric sensors and reflection sensors arranged in an N × M array, for example (in this embodiment, pyroelectric sensors are arranged in 8 × 8, for example). However, the present invention is not limited to this). The pyroelectric sensor is a passive human sensor that detects a human body by detecting a temperature change caused by infrared rays naturally radiated from a human body or the like (heat source). The sensor array constituting the human sensor array 280 is not limited to the pyroelectric sensor array, and may be another type of human sensor array. Any sensor array may be used as the human sensor array 280 as long as a plurality of pyroelectric sensors, reflection sensors, and the like can be arranged and grasped in detail.

Hereinafter, a pyroelectric array sensor will be described as the human sensor array 280 that detects the movement of a person based on a heat source.
FIG. 12 is a diagram illustrating an example of the reaction of the human sensor array 280. FIG.
FIG. 12A shows the response of the human sensor array 280 when a person is not nearby. Since the human sensor array 280 does not detect a human heat source, all the sensors are not responding.

  FIG. 12B shows an example of a condition that becomes a trigger for shifting to the normal power mode. When it is detected that a heat source has been generated at the center of the detection area of the human sensor array 280, it is determined that a person has approached to use the image processing apparatus 100, and the mode is shifted to the normal power mode. In addition, in order to prevent malfunction, you may make it transfer to normal electric power mode, when reaction of this area continues for a fixed time. Alternatively, the sensor information of the human sensor array 280 may be picked up at regular intervals, and a transition to the normal power mode may be made when the reaction is continuously performed a plurality of times (two times or more). Here, it is assumed that the heat source shifts to the normal power mode when there is a reaction in the range shown in FIG. Note that FIGS. 12C and 12D will be described later.

FIG. 13 is a block diagram illustrating an example of a hardware configuration of the image processing apparatus 100 according to the third embodiment. Hereinafter, differences from the first embodiment shown in FIG. 3 will be described.
The first embodiment shown in FIG. 3 has two human sensors, a first human sensor 230 and a second human sensor 231. Further, for the purpose of reducing unnecessary power, the power mode for supplying power to each human sensor is switched between the first power saving mode and the second power saving mode. On the other hand, in the third embodiment, by using the human sensor array 280, one power saving mode is provided. The human sensor array 280 is used to shift from the power saving mode to the normal power mode when the human sensor array determination unit 282 determines that a predetermined condition (FIG. 12B) is satisfied.

  Note that FIG. 13A shows a block that is fed in the normal power mode, and FIG. 13B shows a block that is fed in the power saving mode. In the power saving mode, the power is not supplied to the portions displayed in gray in FIG.

Hereinafter, the difference from the first embodiment shown in FIG. 4 will be described with reference to FIG. 14 regarding the power mode transition using the sensor.
FIG. 14 is a diagram illustrating an example of a power supply mode of the image processing apparatus according to the third embodiment.
In the third embodiment, the human sensor array determination unit 282 determines whether or not to output a request signal for shifting to the normal power mode. The human sensor array determination unit 282 determines whether or not the condition as illustrated in FIG. Further, the human sensor array 280 outputs a signal 531 and a signal 534 to the human sensor array determination unit 282. The signal 531 and the signal 534 are signals that can specify the position of the region where the heat sensor is detected by the human sensor array 280, and are used by the human sensor array determination unit 282 to determine the transfer request signal output.

  In the example of FIG. 15, the human sensor array 280 outputs the signal 531 when detecting the first heat source, and outputs the signal 534 when detecting the second heat source. However, the human sensor array 280 outputs only the signal 531 to the human sensor array determination unit 282 when the heat source is detected, and the human sensor array determination unit 282 starts from the detection position of the heat source indicated by the signal 531. You may comprise so that the detection of a 2nd heat source may be determined.

Hereinafter, details of output restriction of the migration request signal 504 by the human sensor array determination unit 282 will be described with reference to FIG.
FIG. 15 is a diagram illustrating an example of the configuration of the human sensor array determination unit 282 according to the third embodiment.
By using the human sensor array 280, the movement of the user can be detected in detail. It is also possible to determine that there are a plurality of heat sources as shown in FIG.
When the human sensor array 280 detects the heat source 1 as the first heat source, it outputs a signal 531 to the condition determination circuit 603, and when it detects the heat source 2 as the second heat source, the condition determination. A signal 534 is output to the circuit 603.

  The condition determination circuit 603 determines whether or not to output a transition request signal based on the condition shown in FIG. 12B from the state of the signal 531, and outputs a signal 536 to the logic 601. Further, the condition determination circuit 603 determines whether or not to output a transition request signal based on the condition as shown in FIG. 12B from the state of the signal 534, and outputs a signal 537 to the logic 602.

  While the human sensor array 280 detects the user who pressed the power saving key 214 as shown in FIG. 12D, the human sensor invalid flag 599 is set to “0” by the invalid flag 600, and the output limit of the signal 536 is limited. And the transition to the normal power mode is limited. In addition, as shown in FIG. 12C, the user heat source 1 that has pressed the power saving key 214 is restricted to the normal power mode and the transition to the normal power mode is effective for the different user heat sources 2. It is also possible to make it.

  When the power saving key 214 is pressed, a signal 530 is transmitted from the power saving key 214 to the invalid flag 600, and the transition request signal 536 from the human sensor array 280 is invalidated. When the human sensor array 280 is not detected, the human sensor array 280 outputs a signal 535 to the invalid flag 600, and the request signal 536 from the human sensor array 280 is validated. If a heat source different from the heat source is detected while detecting the user heat source having pressed the power saving key 214, the human sensor array 280 outputs a signal 534 to the condition determination circuit 603. When the detection state by the signal 534 satisfies the transition condition, the condition determination circuit 603 outputs the request signal 537 to the logic 602 and outputs the transition request signal 504 to the normal power mode.

FIG. 16 is a flowchart illustrating an example of a power mode transition operation in the image processing apparatus according to the third embodiment.
First, the processing of S11 to 14 is the same as in FIG.
When the human sensor invalid flag 599 is “0” (Yes in S15), the invalid flag 600 changes and controls the human sensor invalid flag 599 according to the detection signal 535 from the human sensor array 280.

  When the human sensor array 280 is in a detection state (No in S16), the output of the signal 535 is maintained from the human sensor array 280, whereby the invalid flag 600 sets the human sensor invalid flag 599 to “0”. To maintain. When the human sensor invalid flag 599 is “0”, the human sensor array determination unit 282 assumes that the detection signal 531 is input from the human sensor array 280 and satisfies a predetermined condition (for example, FIG. 12B). However, the migration request signal 504 is not transmitted to the power supply control unit 203. Note that the condition determination circuit 603 determines the condition as shown in FIG.

  However, even if the human sensor invalid flag 599 is “0”, when the human sensor array determination unit 282 detects another person using the human sensor array 280 (Yes in S30), the transition request signal 504 is detected. Send. Note that when another person described in S30 is detected, the human sensor array 280 detects a heat source 2 (new object) different from the heat source 1 as shown in FIG. This corresponds to the case where a condition such as 12 (B) is satisfied.

  Further, when the human sensor array 280 is not detected (Yes in S16), the output of the signal 535 from the human sensor array 280 is stopped, whereby the invalid flag 600 is changed to the human sensor invalid flag 599. Is changed to “1” (S17).

  When the human sensor invalid flag 599 is “1” (No in S15), the invalid flag 600 maintains the human sensor invalid flag 599 at “1” regardless of the detection signal 535 from the human sensor array 280. When the human sensor invalid flag 599 is “1”, the human sensor return determination unit 281 receives a detection signal 531 from the human sensor array 280 and satisfies a predetermined condition (for example, FIG. 12B). A migration request signal 504 is transmitted to the power supply control unit 203. Note that the condition determination circuit 603 determines the condition as shown in FIG.

  In the third embodiment, when the human sensor invalid flag 599 is “0”, the human sensor array determination unit 282 does not output the migration request signal 504 when only one heat source is detected by the human sensor array 280. Therefore, even when the second human sensor 231 detects a person who presses the power saving key 214, the normal power mode transition condition is not satisfied. However, even if the human sensor invalid flag 599 is “0”, when the human sensor array 280 detects two or more heat sources, the human sensor array determination unit 282 makes a transition request signal 504. Is output. Therefore, when the second human sensor 231 detects a person other than the person who pressed the power saving key 214 under the condition shown in FIG. 12B, the normal power mode transition condition is satisfied. Of course, when the human sensor invalid flag 599 is “1”, the output of the transition request signal 504 is not limited, so the second human sensor 231 detects a person under the conditions shown in FIG. In this case, the normal power mode transition condition is satisfied.

  As described above, by using the human sensor array 280, the transition to the normal power mode is restricted for the user who pressed the power saving key 214, and the transition to the normal power mode is performed for a different user. be able to. Therefore, an unnecessary return from the power saving state due to the detection of the human sensor after the power saving key is pressed can be prevented. As a result, the convenience of the user can be further improved. In this way, the same effect as when two human sensors are used using the human sensor array 280 can be obtained. In the third embodiment, it is not necessary to switch between the first power saving mode and the second power saving mode.

  In the above description, the configuration is shown in which the human sensor array determination unit 282 restricts the output of the transition request signal 504 and restricts the return to the normal power mode by the detection of the human sensor array 280. However, the human sensor array determination unit 282 may not be provided, and the power supply control unit 203 may directly limit the return to the normal power mode by the detection of the human sensor array 280. In this case, only differences from the first embodiment will be described. In this case, the signals 531 and 534 from the human sensor array 280 are directly input to the power control unit 203, and the human sensor invalid flag is stored in the power control unit 203. When the power saving key 214 is pressed and the human sensor flag is determined to be “0”, the power control unit 203 ignores the detection signal 531 even if the detection signal 531 is input to the power control unit 203. On the other hand, when the detection signal 534 is input to the power supply control unit 203, even if the human sensor flag is “0”, the power supply control unit 203 does not ignore the condition as shown in FIG. The system is configured to return to the normal mode. Hereinafter, a description will be given with reference to the flowchart of FIG. In this case, each process shown in FIG. 16 is realized by the power supply control unit 203 reading and executing a program stored in a storage device (not shown) in the power supply control unit 203.

  In S15, the power supply control unit 203 determines whether or not the human sensor invalid flag is “0”. If the human sensor invalid flag is determined to be “0” (Yes in S15), the process proceeds to S16, and if the human sensor invalid flag is determined to be “1” (No in S15), S18. Migrate to

  In S16, the power supply control unit 203 determines whether or not the human sensor array 280 is not detected. When the human sensor array 280 determines that a person is not detected (Yes in S16), the power supply control unit 203 determines that the user who pressed the power saving key has left, and sets the human sensor invalid flag to “1”. (S17), the process proceeds to S15. On the other hand, when it is determined in S16 that the human sensor detects a person (No in S16), the power supply control unit 203 proceeds to S30.

  In S30, the power supply control unit 203 determines whether or not the human sensor array 280 has detected another person (new object). In addition, when another person is detected in S30, as shown in FIG. 12C, the human sensor array 280 detects the heat source 2 different from the heat source 1, as shown in FIG. 12B. This corresponds to the case where the various conditions are satisfied.

  If it is determined in S30 that the human sensor array 280 has not detected another person (new object) (No in S16), the power supply control unit 203 proceeds to S15. On the other hand, when it is determined in S30 that the human sensor has detected another person (new object) (Yes in S30), the power supply control unit 203 proceeds to S18.

  In S18, the power supply control unit 203 determines whether or not the normal power mode transition condition is satisfied. When the human sensor invalid flag is “1” and the signal 531, 511, 501, 502, or 503 is received, the power supply control unit 203 determines that the normal power mode transition condition is satisfied and shifts. On the other hand, when the human sensor invalid flag is “0”, the power supply control unit 203 determines that the normal power mode transition condition is satisfied when the signal 511, 501, 502, or 503 is received. However, in this case, when receiving the signal 531, the power supply control unit 203 determines that the normal power mode transition condition is not satisfied. Further, in this case, when receiving the signal 534, the power supply control unit 203 determines that the normal power mode transition condition is satisfied. That is, when the human sensor invalid flag is “1”, detection of the user who pressed the power saving key in the human sensor array 280 is ignored, but detection of other users is valid, and the normal power mode is entered. Control.

  In this embodiment, the human sensor array is used. However, any human sensor may be used as long as the human sensor can recognize the number of detected objects. That is, any human sensor that can recognize that a user other than the user who pressed the power saving key 214 has been detected may be used.

  Moreover, the structure which combined Example 2 and Example 3 may be sufficient. That is, after shifting to the normal power mode, the job flag is set to “0” when there is no job, and the job flag is set to “1” when there is a job. Then, when the power saving key 214 is pressed and the job flag is “0”, a configuration in which the human sensor invalid flag 599 is set to “0” is added to the third embodiment. As a result, in addition to the configuration of the third embodiment, when a transition to the power saving mode is instructed by the power saving key 214 without entering a job after the transition to the normal power mode, the transition to the normal power mode is performed. Configurations to be restricted can be added.

It should be noted that the configuration and contents of the various data described above are not limited to this, and it goes without saying that the various data and configurations are configured according to the application and purpose.
Although one embodiment has been described above, the present invention can take an embodiment as, for example, a system, apparatus, method, program, or storage medium. Specifically, the present invention may be applied to a system composed of a plurality of devices, or may be applied to an apparatus composed of a single device.
Moreover, all the structures which combined said each Example are also contained in this invention.

(Other examples)
The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, or the like) of the system or apparatus reads the program. It is a process to be executed.
Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device.
The present invention is not limited to the above embodiments, and various modifications (including organic combinations of the embodiments) are possible based on the spirit of the present invention, and these are excluded from the scope of the present invention. is not. That is, the present invention includes all the combinations of the above-described embodiments and modifications thereof.

DESCRIPTION OF SYMBOLS 100 Image processing apparatus 203 Power supply control part 230 1st human sensor 231 2nd human sensor 281 Human sensor return determination part

  The present invention is an image processing apparatus having at least a first power state and a second power state that consumes less power than the first power state. A receiving unit that receives an instruction to shift to a power state from a user; a detecting unit that detects a person; and the detection of the person by the detecting unit, the image processing apparatus from the second power state to the first power A transition from the second power state to the first power state based on human detection by the detection means is prohibited for a predetermined period in accordance with the power control means to shift to a state and the transition instruction received by the reception means And prohibiting means.

Claims (8)

An image processing apparatus operable to switch between at least a first power state and a second power state that consumes less power than the first power state,
Instruction means for accepting an instruction to transition from the first power state to the second power state;
Detection means for detecting an object;
Power control means for controlling the power state of the image processing apparatus so as to shift from the second power state to the first power state in response to detection of an object by the detection means;
With
The power control means shifts from the first power state to the second power state in response to a transition instruction from the instruction means, and until the detection means no longer detects the object, the object by the detection means An image processing apparatus that restricts the transition to the first power state in response to the detection of an image. The detection means includes a first detection means and a second detection means having a detection range narrower than the first detection means,
The power control means shifts from the third power state, which consumes less power than the second power state, to the second power state in response to the detection of the object by the first detection means, and the second power state. In response to the detection of the object by the detection means, the transition from the second power state to the first power state,
Furthermore, the power control means shifts from the first power state to the second power state or the third power state in response to a transition instruction by the instruction means, and the first detection means or The transition to the first power state according to the detection of the object by the second detection unit is limited until the second detection unit stops detecting the object. Image processing device. The detection means includes a first detection means and a second detection means having a detection range narrower than the first detection means,
The power control means shifts from the third power state, which consumes less power than the second power state, to the second power state in response to the detection of the object by the first detection means, and the second power state. In response to the detection of the object by the detection means, the transition from the second power state to the first power state,
Further, the power control means shifts from the first power state to the second power state or the third power state in response to a transition instruction from the instruction means, and the first detection means and The transition to the first power state according to the detection of the object by the second detection unit is limited until the second detection unit stops detecting the object. Image processing device. The first detection means is fed in the third power state,
4. The image processing apparatus according to claim 2, wherein the second detection unit is not supplied with power in the third power state but is supplied when the second detection unit shifts to the second power state. 5. The detection means is capable of recognizing the number of detected objects,
2. The image processing apparatus according to claim 1, wherein the power control unit shifts to the first power state when a new object is detected by the detection unit even during the restriction. 3. .   The power control means performs the restriction when a transition to the second power state is instructed by the instruction means without a job being submitted after the transition to the first power state. The image processing apparatus according to any one of claims 1 to 5. A control method for an image processing apparatus operable to switch between at least a first power state and a second power state that consumes less power than the first power state,
A return step for controlling the power state of the image processing apparatus so that the power control unit shifts from the second power state to the first power state in response to the detection of the object by the detecting unit that detects the object. When,
The power control means shifts from the first power state to the second power state in response to a transition instruction by an instruction means for receiving a transition instruction from the first power state to the second power state. And a limiting step for restricting the transition to the first power state according to the detection of the object by the detection means until the detection means no longer detects the object;
A control method for an image processing apparatus, comprising:   The program for functioning a computer as a power control means as described in any one of Claims 1 thru | or 6.