JP2015173581A - Power monitoring control device, image processing device, and power monitoring control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress wasteful consumption of power of a storage device.SOLUTION: Continuing power supply by a power storage device 96 is more advantageous in convenience in a case of power interruption in a short period of time. But, saving power of the power storage device is more advantageous in saving energy in a case of power interruption over a long period of time. Discrimination between the short period of time and the long period of time is performed taking a time-up time of a timer circuit 112 as the boundary between them. The timer circuit 112, in a "sleep 0" mode, resets/starts time count when a signal showing power interruption is input from a current detection device 110. Changeover of a LVPS 108 is instructed from the power storage device 96 when the time-up time has passed.

Description

  The present invention relates to a power monitoring control device, an image processing device, and a power monitoring control program.

  In a processing apparatus that requires power, for example, an image processing apparatus, by using a power storage device as a power supply source of power consumption in a power saving mode (sometimes referred to as “sleep mode”), during the sleep mode, , AC power supply from an external power source (commercial power outlet) is not required (internal switch off).

  Patent Document 1 describes using a means for monitoring the voltage of an electricity storage device and switching to an external power supply source when the voltage falls below a certain value. In this patent document 1, since electric power is supplied from the power storage device until the voltage drops, there is a possibility that the stored electric power is wasted in a situation where external input power is not supplied.

  Patent Document 2 describes monitoring whether or not external input power is supplied when shifting from the power saving mode to the operation mode. In Patent Document 2, there is no mention of protection of the amount of power of the storage battery, and when the external input power supply is not performed for a long time, the power of the storage battery may be wasted.

JP 2008-137612 A JP 2011-205787 A

  An object of the present invention is to obtain a power monitoring control device, an image processing device, and a power monitoring control program capable of suppressing wasteful power consumption of a power storage device.

  The invention according to claim 1 is a first control means for controlling power supply from an external power source, a second control means for controlling power supply from the power storage means, and a power supply controlled by the first control means. The power supply by the second control means is shut off based on the detection result of the detection means when the detection means for detecting the interruption of the power supply and the second control means are controlled to supply power And a blocking means.

  According to a second aspect of the present invention, the power storage means, the control means for controlling the image processing apparatus, the detection means for detecting interruption of the power supplied from the power source to the image processing apparatus, and the control means An image processing apparatus comprising: a shut-off unit that shuts off power supply by the power storage unit based on a detection result of the detection unit when power is being supplied from the power storage unit.

  According to a third aspect of the present invention, there is provided a main control unit that controls a processing unit supplied with power from a main power supply unit, a changeover switch that switches a power supply source to the main power supply unit or the sub power supply unit, and the main power supply unit. The power from the main power supply unit is detected based on the detection result from the detection in a state where the power supply source is switched to the sub power supply unit by the changeover switch and the detection means for detecting the supply or interruption of power from And switching control means for controlling the changeover switch to switch the power supply source from the sub power supply unit to the main power supply unit when it is determined that the supply is cut off.

  According to a fourth aspect of the present invention, in the invention according to the third aspect, in the state in which the power supply source is switched to the sub power source by the switching control means, the main control unit is instructed to perform processing. If there is, the power necessary for switching the power supply source to the main power supply is supplied from the sub power supply.

  According to a fifth aspect of the present invention, in the invention according to the third or fourth aspect, the detection means is provided on the upstream side of the changeover switch, and supplies power from the main power supply unit. This is a detector that detects a current flowing through the power supply or a voltage applied to a power supply line.

  The invention according to claim 6 is the invention according to any one of claims 3 to 5, wherein the detection means turns on or off a lighting fixture that can be turned on with electric power from the main power supply unit. It is an illuminance sensor to detect.

  The invention according to claim 7 is the invention according to any one of claims 3 to 6, wherein the determination means determines in advance that the power from the main power source is determined to be cut off. The timer further has a timer circuit that delays switching by the switching control means.

  According to an eighth aspect of the present invention, in the invention according to the seventh aspect, the detection means is provided on the upstream side of the changeover switch, and the current flows through a power supply line that supplies power from the main power supply unit. Or a detector that detects a voltage applied to a power line, and an illuminance sensor that detects lighting or extinguishing of a lighting fixture that can be turned on with power from the main power supply unit, and the switching control means, When both the determination result based on the detection results of both the detector and the illuminance sensor are determined to be power supply interruption, the power supply source is set more than when the power supply interruption is determined only by the detector. The timing for switching from the sub power supply unit to the main power supply unit is advanced.

  According to a ninth aspect of the present invention, the power monitoring control device according to any one of the third to eighth aspects is provided, and the processing unit includes at least one of an image reading unit, an image forming unit, and a facsimile communication unit. 1 is an image processing apparatus.

  The invention described in claim 10 is a program that causes a computer to be executed as the power monitoring control device according to any one of claims 3 to 8.

  According to the first to third aspects of the invention, it is possible to suppress wasteful power consumption of the power storage device.

  According to invention of Claim 4, energy saving can be improved.

  According to the fifth aspect of the present invention, it is possible to quickly and reliably determine the power supply state of the main power supply unit as compared with the case where the present configuration is not provided.

  According to the sixth aspect of the present invention, it is possible to indirectly determine the power supply state of the main power supply unit.

  According to the seventh aspect of the invention, convenience and energy saving can be maintained in a well-balanced manner.

  According to the eighth aspect of the present invention, when the main power supply unit is not expected to recover due to a power failure or the like and the processing by the processing unit is impossible, the power consumption of the sub power supply unit can be quickly suppressed.

  According to the ninth aspect of the present invention, it is possible to suppress wasteful power consumption of the power storage device.

  According to the invention of claim 10, useless consumption of electric power of the power storage device can be suppressed.

1A and 1B are schematic views of an image processing apparatus according to a first embodiment, in which FIG. 1A shows a state where an outlet is connected, and FIG. 2B shows a state where an outlet is disconnected. 2 is a block diagram of a control system of the image processing apparatus according to the first embodiment. FIG. FIG. 3 is a wiring diagram mainly using a power supply line in the image processing apparatus according to the first embodiment (current detection). 7 is a flowchart showing a power monitoring control routine executed during the “sleep 0” mode according to the first embodiment. (A) is a wiring diagram based on a power supply line according to a modification of the first embodiment (voltage detection), and (B) is a circuit diagram showing an example of a voltage detection circuit. It is the schematic which shows the arrangement | positioning relationship between the image processing apparatus which concerns on 2nd Embodiment, and a lighting fixture. FIG. 6 is a wiring diagram mainly including a power supply line in an image processing apparatus according to a second embodiment. 14 is a flowchart illustrating a power monitoring control routine executed during the “sleep 0” mode according to the second embodiment.

  1A and 1B show an image processing apparatus 10 according to the present embodiment.

  The image processing apparatus 10 includes an image forming unit 12 that forms an image on a recording sheet, an image reading unit 14 that reads an original image, and a facsimile communication control circuit 16. The image processing apparatus 10 includes a main controller 18. The image processing apparatus 10 controls the image forming unit 12, the image reading unit 14, and the facsimile communication control circuit 16. For example, image data of a document image read by the image reading unit 14 is primary. Or the read image data is sent to the image forming unit 12 or the facsimile communication control circuit 16. The image reading unit 14 is covered with the upper housing 10A, and the image forming unit 12, the facsimile communication control circuit 16, and the main controller 18 are covered with the lower housing 10B. A lower stage of the lower housing 10B is provided with a plurality of tray units 50 for storing recording paper.

  In addition, on the upper surface and the front of the upper casing 10A covering the image reading unit 14, processing operation (service) items including image reading processing, copying processing, image forming processing, and transmission / reception processing are instructed. A user interface 52 (hereinafter also referred to as “UI 52”) for instructing detailed setting of the operation and displaying the state of the image processing apparatus 10 is disposed. The UI 52 is provided with a touch panel unit 40 that can be instructed by touching an operator's finger or the like on the display screen, and a plurality of hard keys 54 that can be instructed by mechanical operation (for example, pressing operation).

  A network communication network 20 such as the Internet is connected to the main controller 18, and a telephone network 22 is connected to the facsimile communication control circuit 16. The main controller 18 is connected to a host computer via, for example, a network communication line network 20 and receives image data or performs facsimile reception and facsimile transmission using the telephone line network 22 via the facsimile communication control circuit 16. Has a role to play.

  The image reading unit 14 receives a document table for positioning the document, a scanning drive system that scans an image of the document placed on the document table and emits light, and light reflected or transmitted by scanning of the scan drive system. And a photoelectric conversion element such as a CCD for converting into an electrical signal.

  The image forming unit 12 includes a photoconductor. Around the photoconductor, a charging device that uniformly charges the photoconductor, a scanning exposure unit that scans a light beam based on image data, and the scanning exposure unit. An image developing unit that develops the electrostatic latent image formed by scanning exposure, a transfer unit that transfers the developed image on the photoreceptor to a recording sheet, and a surface of the photoreceptor after the transfer are cleaned. And a cleaning unit. A fixing unit for fixing the image on the recording paper after transfer is provided on the recording paper conveyance path.

  In the present embodiment, scanning, copying, printing, facsimile transmission, facsimile using the image forming unit 12, the image reading unit 14, and the facsimile communication control circuit 16 (hereinafter sometimes collectively referred to as “device”). Services (processing forms) including reception and printing after reception can be executed.

  An outlet 26 is attached to the tip of the input power line 24 in the image processing apparatus 10, and the image processing apparatus 10 is inserted into the wiring plate 32 of the commercial power supply 31 wired up to the wall surface W. The power supply is supplied from the commercial power source 31.

  1A shows a state where the outlet 26 is inserted into the wiring plate 32. In this case, the power of the commercial power supply 31 is supplied to the image processing apparatus 10. FIG. On the other hand, FIG. 1B shows a state in which the outlet 26 is not inserted into the wiring plate 32. In this case, the power of the commercial power supply 31 is not supplied to the image processing apparatus 10.

(Control system of image processing device)
FIG. 3 is a schematic diagram of the hardware configuration of the control system of the image processing apparatus 10.

  The network communication network 20 is connected to the main controller 18 of the image processing apparatus 10. The network communication line network 20 is connected to a PC (terminal device) 29 that can be a transmission source of image data.

  The main controller 18 is connected to the facsimile communication control circuit 16, the image reading unit 14, the image forming unit 12, and the UI 52 via buses 33A to 33D such as a data bus and a control bus. That is, each processing unit of the image processing apparatus 10 is controlled mainly by the main controller 18.

  The image processing apparatus 10 includes a power supply device 42 and is connected to the main controller 18 by a signal harness 43.

  The power supply 42 is supplied with electric power from the commercial power supply 31 through the wiring plate 32 and the outlet 26 via the input power line 24.

  In the power supply device 42, power supply lines 35 </ b> A to 35 </ b> D that supply power independently to the main controller 18, the facsimile communication control circuit 16, the image reading unit 14, the image forming unit 12, and the UI 52 are provided. For this reason, the main controller 18 individually supplies power to each processing unit (device) (power supply mode) or restricts power supply (energy saving mode) to enable so-called partial power saving control.

  By the way, in a general energy saving mode, power supply to devices other than the main controller 18 is cut off, and the main controller 18 also waits for reception of information from the outside (network communication network 20 or telephone network 22). Power other than that required for the function is shut off. In this case, about 1 to 5 W (watts) is consumed as the power supplied from the commercial power source.

  On the other hand, in the present embodiment, the “sleep 0” mode in which the power supply from the commercial power supply is basically cut off also for the main controller 18 as the energy saving mode.

  “Basically cut off the power supply from the commercial power source” means that the main controller 18 does not receive any power from the commercial power source 31 (power supply device 42), but the information reception standby function from the outside and “sleep” In order to return from the “0” mode state to the normal mode state, this means that power is supplied from a sub power supply unit that is different from the power supply device 42 that is the main power supply unit.

  The image processing apparatus 10 according to the present embodiment is equipped with a leakage breaker 102 (see FIG. 4). For this reason, when the outlet 26 is connected to the wiring plate 32 and the input power line 24 and the commercial power supply 31 are in a conductive state, a current flows through the leakage breaker 102 and power of about 10 mw (0.01 w) is consumed. There is a case.

  As shown in FIG. 3, in the present embodiment, a power supply system using photovoltaic power generation is applied as a sub power supply unit for supplying power to the main controller 18 during the “sleep 0” mode period. Yes.

  In other words, the solar panel 92 is installed in the image processing apparatus 10. For example, the solar panel 92 may be attached to all or part of the surface of the upper housing 10A or the lower housing 10B (see FIG. 1), or may be disposed away from the image processing apparatus 10. .

  The solar panel 92 is connected to the power storage device 96 via a dedicated wiring 94. The power charged in the power storage device 96 can be sent to the main controller 18 via the power supply line 98.

  The main controller 18 is provided with a power switching unit 18A and a sub controller 18S. In the power supply switching unit 18A, the power supply source is switched to the power supply device 42 (main power supply unit) in the normal mode, and is switched to the power storage device 96 (sub power supply unit) in the “sleep 0” mode.

  Although details will be described later, as shown in FIG. 4, in the “sleep 0” mode, the 0w switch 104 interposed in the input power supply line 24 is turned off, so that the main power switch 106 is in the on state. The power from the commercial power supply 31 is not input to the LVPS 108.

  The sub-controller 18S is a part of the function of the main controller 18. The sub-controller 18S is activated during the “sleep 0” mode period, monitors the operation state of the power saving key, waits for information reception from the outside, and “sleep”. The program for returning from the “0” mode state to the normal mode state is executed.

  Note that at least one of the power supply switching unit 18A and the sub-controller 18S may be provided separately from the main controller 18.

  FIG. 4 is a circuit diagram mainly showing wiring for supplying power to the main controller 18 in the image processing apparatus 10 of the present embodiment.

  The other end of the input power line 24 having the outlet 26 attached to one end is connected to the leakage breaker 102. That is, the earth leakage breaker 102 is connected to the upstream side of the main power switch 106.

  The leakage breaker 102 monitors the leakage of the power wiring in the image processing apparatus 10. If there is a leakage, the power supply is cut off at the most input end of the image processing apparatus 10.

  The main power switch 106 serves to turn on the power from the commercial power supply 31 to the image processing apparatus 10 at the user's will. The main power switch 106 is connected to the LVPS 108 via the 0w switch 104.

  The 0w switch 104 is a switch that is turned on / off based on an instruction signal from the main controller 18 and that is turned on / off by software. When shifting from the normal mode to the “sleep 0” mode, the 0w switch 104 is turned off, and power is supplied from the power storage device 96 to the sub-controller 18S by switching the contact of the power supply switching unit 18A. ing.

(Power storage device power consumption suppression function)
Here, in the present embodiment, the current detection device 110 is attached to the input power line 24 that is further upstream than the leakage breaker 102. In the current detection device 110, the coil unit 110 </ b> A is disposed around the input power line 24, and measures the current flowing through the input power line 24 based on the relationship between the current and the magnetic field.

  The current detection device 110 sends out to the timer circuit 112 via the signal line 100.

  When the timer circuit 112 receives a signal indicating a power-off in the signals from the current detection device 110, the timer circuit 112 resets and starts the time measurement. The timer circuit 112 is activated when the power source is switched to the power storage device 96 by the power source switching unit 18A, that is, when the mode is shifted to the “sleep 0” mode.

  The timer circuit 112 is connected to the sub controller 18S. In the timer circuit 112, when a predetermined time elapses after reset / start, the sub-controller 18S is instructed to switch the power source.

  More specifically, in the “sleep 0” mode, the following factor 1 or factor 2 can be considered as a factor for receiving a signal indicating the power-off in the signal from the current detection device 110.

  (Factor 1) A state in which power is not supplied due to a physical disconnection between the wiring plate 32 and the input power supply line 24 (when the outlet 26 is disconnected from the wiring plate 32 (state of FIG. 1B)).

  (Factor 2) A state where power is not supplied from the commercial power supply 31 itself (power failure state).

  Here, in the case of the factor 1 (mainly, the outlet is disconnected), for example, a relatively short time including a case where the image processing apparatus 10 is moved and a relatively long time including a case where the user goes home at night. Is predicted. On the other hand, in the case of factor 2 (power failure), for example, due to the power source (including the power company), it is difficult to predict the period (time) of the power failure. The distinction between the short time and the long time here is based on the time-up time of the timer circuit 112 described above.

  In the case of a power interruption for a short time, it is advantageous in terms of convenience to continue power supply by the power storage device 96. However, in the case of long-time power interruption, it is advantageous from the viewpoint of energy saving to preserve the power of the power storage device.

  Therefore, in the present embodiment, when a signal indicating power-off is input from the current detection device 110 in the timer circuit 112, the clocking is reset and started, and when a predetermined time (time-up time) has elapsed. The switching of the LVPS 108 is instructed from the power storage device 96. This is control for the purpose of preserving the stored power of the power storage device 96.

  Hereinafter, the operation of the present embodiment will be described with reference to a flowchart.

  FIG. 4 is a flowchart showing a power monitoring control routine in the “sleep 0” mode according to the present embodiment.

  In step 150, it is determined whether or not the power supply from the commercial power supply 31 is cut off. If a negative determination is made in step 150, it is determined that convenience is improved by maintaining the power supply state (“sleep 0” mode state) from the power storage device 96, and the process proceeds to step 152 to return from the user It is determined whether or not there is a request (processing instruction). If a negative determination is made in step 152, the process returns to step 150, and steps 150 and 152 are repeated until an affirmative determination is made in either step 150 or 152.

  Here, if the determination in step 152 is affirmative during the repetition of steps 150 and 152, it is determined that there has been a return request from the user, the process proceeds to step 154, and an instruction to return to the normal mode is given. finish. As described above, even in the “sleep 0” mode, since the minimum necessary power is received from the power storage device 96 and the return request from the user is monitored, it is possible to return to the normal mode in response to the return request. .

  On the other hand, if the determination in step 150 is affirmative during the repetition of steps 150 and 152, it is determined that the power supply from the commercial power source 31 has been interrupted due to the outlet being disconnected (factor 1) or a power failure (factor 2), and the process proceeds to step 156. Then, the timer circuit 112 resets and starts the time count.

  In the next step 158, it is determined whether or not the power supply from the commercial power supply 31 has been restored, and if the determination is affirmative, the commercial power supply 31 is relatively short (the time during which the timer circuit 112 does not reach time-up). It is determined that the power supply from is restored, the process proceeds to step 160, the time measurement of the timer circuit 112 is stopped, and the process proceeds to step 152.

  On the other hand, if a negative determination is made in step 158, the process proceeds to step 162 to determine whether or not the timer circuit 112 has timed up. If a negative determination is made in step 162, the process returns to step 158.

  If an affirmative determination is made in step 162, it is determined that the power supply from the commercial power supply 31 has been interrupted for a relatively long time (time for the timer circuit 112 to reach time-up), and the process proceeds to step 164. For the purpose of preserving the stored power of the power storage device 96, the main controller 18 is shut down, and then the routine proceeds to step 166 where the switch of the power source switching unit 18A is switched to the LVPS side, and this routine ends.

  That is, the interruption of the power supply from the commercial power source 31 for a long time is due to the user intentionally pulling out the outlet 26 or due to a power failure, and thus the power from the power storage device 96 is consumed and the convenience is maintained. In order to suppress the power consumption of the power storage device 96, the image processing apparatus 10 is completely stopped. Thereby, priority is given to maintaining energy saving rather than convenience.

(Modification of the first embodiment)
In the first embodiment, whether or not power is supplied from the commercial power supply 31 is detected by the current detection device 110, but whether or not power is supplied from the commercial power supply 31 by detecting the voltage. It may be determined whether or not.

  5A and 5B are circuit diagrams mainly including wiring for supplying power to the main controller 18 according to the modification of the first embodiment. In the modified example of the first embodiment, parts having the same configuration as in the first embodiment are given the same reference numerals, and description of the configuration is omitted.

  As shown in FIG. 5A, a voltage detection circuit 116 is provided on the input power supply line 24 upstream from the leakage breaker 102 via a branch line 114.

  As shown in FIG. 5B, the voltage detection device 116 includes a rectifier 116A including a bridge circuit 118 in which a diode is connected in a bridge shape, and outputs (voltage) from the rectifier 116A by resistors 120 and 122. A voltage dividing unit 116B that divides the voltage and an output unit 116C that includes a photodiode 124 that detects the voltage divided by the voltage dividing unit 116B in a non-contact manner with the input power supply line 24 are provided.

  In this voltage detection circuit 116, power from the commercial power supply 31 is supplied when the emitter-collector of the photodiode 124 is on, and power from the commercial power supply 31 is cut off when the emitter-collector is off. Thus, this on / off signal is input to the sub-controller 18S.

  The power monitoring control using the voltage detection device 116 according to the modification is the same as that in FIG.

(Second Embodiment)
The second embodiment will be described below. In the second embodiment, parts having the same configurations as those of the first embodiment and the modified example of the first embodiment are denoted by the same reference numerals, and description of the configurations is omitted.

  The feature of the second embodiment is that when a power failure (factor 2) is a factor among the factors for shutting down the commercial power source 31 described in the first embodiment, a user return request (processing instruction) It has been noted that it is clear that commercial power cannot be supplied to the image processing apparatus 10 even if there is.

  As shown in FIG. 6, a lighting fixture 126 is installed on the ceiling of the floor on which the image processing apparatus 10 is installed, and the work time zone, that is, the time zone in which the image processing apparatus 10 is used is the lighting. The lighting state of the instrument 126 is continued.

  On the other hand, it is predicted that the lighting fixture 126 is extinguished during the business hours when there is a power failure. Therefore, in the second embodiment, the illuminance sensor 128 is provided in the image processing apparatus 10.

  In the second embodiment, the time-up time in the timer circuit 112 is the same in the factor 1 (outlet omission) and the factor 2 (power failure), whereas the time-up time of the timer circuit in the case of the factor 1 is The feature is that the time-up time of the timer circuit at the time of factor 2 (power failure) is shortened.

  FIG. 7 is a circuit diagram mainly including wiring for supplying power to the main controller 18 according to the second embodiment. In FIG. 7, the voltage detection circuit 116 determines whether or not the commercial power supply 31 is supplied with power. However, the current detection circuit 110 described in the first embodiment may perform the determination.

  As shown in FIG. 7, in the second embodiment, the voltage detection circuit 116 is connected to the timer time setting unit 130. The timer time setting unit 130 is connected to the timer circuit 112.

  Further, a signal line from the illuminance sensor 128 is connected to the timer time setting unit 130.

  In the timer circuit 112, a time-up time t1 or a time-up time t2 (t2> t1) is instructed from the timer time setting unit 130 together with a timing start instruction.

  The timer time setting unit 130 analyzes the state of the binary signal indicating the power supply state of the commercial power supply 31 from the voltage detection circuit 116 and the state of the binary signal from the illuminance sensor 128, and time-up time t1 or time-up time t2 Is determined.

  In other words, the illuminance sensor 128 is turned on / off depending on the brightness of the lighting on the floor on which the image processing apparatus 10 is installed, and thus is turned off (darker than the threshold) at least during a power failure.

  On the other hand, in the case of a power failure, the signal indicating the power supply state of the commercial power supply 31 from the voltage detection circuit 116 is also a signal indicating the power supply interruption within the allowable time difference range (for example, within one second). When the timer time setting unit 130 determines that a power failure has occurred based on the reception timing of the off signal from the illuminance sensor 128 and the signal indicating the interruption of power supply from the voltage detection circuit 116, the timer time setting unit 130 sets the time-up time t1 to the timer circuit. When it is determined that it is not a power failure, the time-up time t2 is transmitted to the timer circuit.

  The operation of the second embodiment will be described below with reference to the flowchart of FIG. In the flowchart of FIG. 8, for the step of executing the same process as the power monitoring control routine (see FIG. 4) of the first embodiment described above, the symbol “A” is added to the end of the same step number. I will explain.

  In step 150A, it is determined whether or not the power supply from the commercial power supply 31 is cut off. When a negative determination is made in step 150A, it is determined that convenience is improved by maintaining the power supply state (“sleep 0” mode state) from the power storage device 96, and the process proceeds to step 152A to return from the user It is determined whether or not there is a request (processing instruction). If a negative determination is made in step 152A, the process returns to step 150A, and steps 150A and 152A are repeated until a positive determination is made in either step 150A or 152A.

  Here, during the repetition of steps 150A and 152A, if an affirmative determination is made in step 152A, it is determined that there has been a return request from the user, and the routine proceeds to step 154A to instruct a return to the normal mode. finish. As described above, even in the “sleep 0” mode, since the minimum necessary power is received from the power storage device 96 and the return request from the user is monitored, it is possible to return to the normal mode in response to the return request. .

  On the other hand, if an affirmative determination is made in step 150A during the repetition of steps 150A and 152A, the process proceeds to step 170, and it is determined whether or not the signal of the illuminance sensor 128 is off, that is, whether or not the lighting fixture 126 is turned off.

  If an affirmative determination is made in step 170, the power supply from the commercial power supply 31 is cut off and the lighting fixture 126 is turned off simultaneously, and it is determined that a power failure has occurred (factor 2), and the process proceeds to step 172. To do. In step 172, the time-up time of the timer circuit 112 is set to t1, and the process proceeds to step 156A.

  If the determination in step 170 is negative, the power supply from the commercial power supply 31 is cut off, but the lighting fixture 126 continues to be lit, and it is mainly determined that the outlet has been disconnected (factor 1). Then, the process proceeds to step 174. In step 174, the time-up time of the timer circuit 112 is set to t2 (> t1), and the process proceeds to step 156A. In step 156A, the timer circuit 112 resets and starts counting time.

  In the next step 158A, it is determined whether or not the power supply from the commercial power supply 31 has been restored, and if an affirmative determination is made, the commercial power supply 31 is relatively short (the time during which the timer circuit 112 does not reach time-up). It is determined that the power supply from is restored, the process proceeds to step 160A, the time measurement of the timer circuit 112 is stopped, and the process proceeds to step 152A. In the case of power supply restoration, it is not necessary to distinguish between the factors 1 and 2, and therefore determination of the signal from the illuminance sensor 128 is not necessary.

  If a negative determination is made in step 158A, the process proceeds to step 162A to determine whether or not the timer circuit 112 has timed up. If a negative determination is made in step 162A, the process returns to step 158A.

  If an affirmative determination is made in step 162A, it is determined that the power supply from the commercial power source 31 has been interrupted for a relatively long time (time for the timer circuit 112 to reach time-up), and the process proceeds to step 164A. For the purpose of preserving the stored power of the power storage device 96, the main controller 18 is shut down, then the process proceeds to step 166A, the switch of the power source switching unit 18A is switched to the LVPS side, and this routine ends.

  That is, the interruption of the power supply from the commercial power source 31 for a long time is due to the user intentionally pulling out the outlet 26 or due to a power failure, and thus the power from the power storage device 96 is consumed and the convenience is maintained. In order to suppress the power consumption of the power storage device 96, the image processing apparatus 10 is completely stopped. Thereby, priority is given to maintaining energy saving rather than convenience.

  Further, in the second embodiment, when the power supply is limited to a power failure, the commercial power supply 31 itself cannot supply power even if there is a return request from the user. There is no need to maintain some functions of the device 10. Therefore, by setting the time-up time t1 that is shorter than the normal time-up time t2, it is possible to suppress wasteful power consumption of the power storage device 96 when a power failure occurs.

DESCRIPTION OF SYMBOLS 10 Image processing apparatus 10A Upper housing | casing 10B Lower housing 12 Image forming part 14 Image reading part 16 Facsimile communication control circuit 18 Main controller 18A Power supply switching part 18S Subcontroller 20 Network communication line network 22 Telephone line network 24 Input power line 26 Outlet 29 PC
31 Commercial Power Supply 32 Wiring Plate 33A-33E Bus 35A-35F Power Supply Line 40 Touch Panel Unit 42 Power Supply Device 43 Harness 52 User Interface (UI)
56 plate 54 hard key 92 solar panel 94 dedicated wiring 96 power storage device 98 power supply line 100 signal line 102 earth leakage breaker 104 0w switch 106 main power switch 108 LVPS
DESCRIPTION OF SYMBOLS 110 Current detection apparatus 110A Coil part 112 Timer circuit 114 Branch line 116 Voltage detection circuit 116A Rectification part 116B Voltage division part 116C Output part 118 Bridge circuit 120 Resistance 124 Photodiode 126 Lighting fixture 128 Illuminance sensor 130 Timer time setting part

Claims (10)

First control means for controlling power supply from an external power source;
Second control means for controlling power supply from the power storage means;
Detecting means for detecting the interruption of power supply controlled by the first control means;
A blocking means for cutting off the power supply by the second control means based on a detection result of the detection means when the second control means is in a state of being controlled to supply power;
A power monitoring and control device. Power storage means;
Control means for controlling the image processing device;
Detection means for detecting the interruption of the power supplied from the external power source to the image processing apparatus;
A shut-off means for shutting off power supply by the power storage means based on a detection result of the detection means when the control means is in a state of receiving power supply from the power storage means;
An image processing apparatus. A main control unit for controlling the processing unit supplied with power from the main power unit;
A changeover switch for switching the power supply source to the main power supply unit or the sub power supply unit;
Detecting means for detecting supply or interruption of power from the main power supply unit;
The switch is controlled when it is determined that the power from the main power supply unit is cut off based on the detection result from the detection while the power supply source is switched to the sub power supply unit by the switch. Switching control means for controlling the power supply source to switch from the sub power supply unit to the main power supply unit;
A power monitoring and control device.   Necessary for switching the power supply source to the main power supply unit when a processing instruction is given to the main control unit in a state where the power supply source is switched to the sub power supply unit by the switching control means. The power monitoring control apparatus according to claim 3, wherein power is supplied from the sub power supply unit.   The detector is a detector that is provided upstream of the changeover switch and detects a current flowing through a power supply line that supplies power from the main power supply unit or a voltage applied to the power supply line. The power monitoring and control apparatus according to claim 3 or 4.   The power monitoring control device according to any one of claims 3 to 5, wherein the detection means is an illuminance sensor that detects lighting or extinguishing of a lighting fixture that can be turned on with electric power from the main power supply unit.   The power according to any one of claims 3 to 6, further comprising a timer circuit that delays switching by the switching control means for a predetermined time after it is determined that the power from the main power supply is cut off. Supervisory control device. The detection means is
A detector that is provided on the upstream side of the changeover switch and that detects a current flowing through a power supply line that supplies power from the main power supply unit or a voltage applied to the power supply line;
An illuminance sensor that detects lighting or extinguishing of a lighting fixture that can be lit with electric power from the main power supply unit, and
The switching control means is
When both the determination result based on the detection results of both the detector and the illuminance sensor are determined to be power supply interruption, the power supply source is set more than when the power supply interruption is determined only by the detector. The power monitoring control device according to claim 5, wherein the timing for switching from the sub power supply unit to the main power supply unit is advanced. The power monitoring and control device according to any one of claims 3 to 8 is provided,
An image processing apparatus comprising at least one of an image reading unit, an image forming unit, and a facsimile communication unit as the processing unit.   A power monitoring control program for causing a computer to execute as the power monitoring control device according to any one of claims 3 to 8.