JP2011232819A - Information processing terminal and power supply state management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing terminal and a power supply state management system for making an image-forming apparatus present in a convenient location be in power-on state from the current position of the portable information processing terminal.SOLUTION: Distances of an information processing terminal and of each image-forming apparatus are detected from positional information thereon. Furthermore, it is determined whether or not the image-forming apparatus is present in the same stair and room as the information processing terminal, from height difference, floor plan and the like, and the convenient image-forming apparatus in the term of the location (for example, the nearest one, or near one in the same stair and room) is selected. Then, the request to make the selected image-forming apparatus be in turn-on state is transmitted from the information processing terminal or a power supply state management system.

Description

  The present invention relates to an information processing terminal having a function of transmitting a job to an image forming apparatus such as a printer or a multifunction peripheral, and a power supply state management apparatus for managing the power supply state of the image forming apparatus.

  An image forming apparatus such as a printer or a multifunction machine installed in an office is connected to a network such as a LAN (Local Area Network), and a print job is received from an information processing terminal (PC) such as a personal computer connected to the network. It is designed to work in response.

  When a job is transmitted from a PC in such an environment, if the destination image forming apparatus is in the power saving mode or the power is turned off, it may take time to turn on the power switch, or the image forming apparatus may be set in the normal mode. The inconvenience that a waiting time until starting up occurs.

  In view of this, a network printing system has been proposed in which the printer itself manages a predetermined PC state and automatically powers up its own apparatus when even one managed PC is activated ( For example, see Patent Document 1.)

  In addition, there is an image forming system that periodically transmits a response request to a PC on a network and controls the power on / off of the image forming apparatus according to the response result (see, for example, Patent Document 2).

JP 2006-1146 A JP 2006-259181 A

  In a system in which the correspondence relationship between the PC to be managed and the image forming apparatus is determined in advance, for example, when the PC is a portable notebook personal computer and is located far from a pre-registered image forming apparatus In conjunction with the power-on of the PC, the remote image forming apparatus enters the normal mode. For this reason, there is a problem that even if the image forming apparatus is in a closer place, the power must be turned on manually when the power of the image forming apparatus is off, which is not convenient.

  Further, even in a system that periodically transmits a response request to a PC on the network, the same problem as described above may occur when the PC that has responded is separated from the image forming apparatus.

  The present invention is intended to solve such a problem, and provides an information processing terminal and a power state management device capable of turning on an image forming apparatus located in a convenient location from the current position of the information processing terminal. The purpose is to do.

  The gist of the present invention for achieving the object lies in the inventions of the following items.

[1] An information processing terminal having a function of transmitting a job to an image forming apparatus through a network,
A detection unit that detects a distance between the image forming apparatus connected to the network and the image forming apparatus;
A selection unit that selects an image forming apparatus that changes the power state to the on side from the image forming apparatus based on the distance detected by the detection unit;
An information processing terminal comprising: a transmission unit that transmits the transition request to the image forming apparatus selected by the selection unit.

  In the above invention, the information processing terminal detects a distance between the image forming apparatus and the image forming apparatus, selects an image forming apparatus that shifts the power supply state to the ON side according to the distance, and selects the selected image forming apparatus. A power state transition request is sent to. The distance to be detected may be not only a straight distance but also a road that takes into account a wall or a stairway in the middle (the path when walking). Alternatively, each image forming apparatus may be configured to transmit a radio wave having a certain intensity and detect a relative distance to each image forming apparatus from the radio wave intensity received by the information processing terminal. Transitioning the power state to the ON side means that if the power state can be transitioned to multiple levels, it will be closer to a fully energized state (a state where power is supplied to all parts) than the current power state. This refers to transition, and is not limited to transition to full energization. The peripheral image forming apparatus is, for example, an image forming apparatus connected to a network (LAN) in the same domain as the information processing terminal.

[2] The detection unit includes a first position information acquisition unit that acquires position information of the image forming apparatus, and a second position information acquisition unit that acquires position information of the image forming apparatus. The information according to [1], wherein the distance is detected from the position information of the image forming apparatus acquired by the position information acquisition unit of the apparatus and the position information of the image forming apparatus acquired by the second position information acquisition unit. Processing terminal.

  In the above-described invention, the information processing terminal acquires position information (for example, coordinate information) of the own apparatus and position information of each image forming apparatus, and obtains a distance from each image forming apparatus from these position information. The distance to be calculated may be a linear distance, or if there is floor plan data, etc., it may be a route that connects the position of the information processing terminal and the position of each image forming apparatus with the shortest distance avoiding obstacles. .

[3] The information processing terminal according to [1] or [2], wherein the selection unit selects an image forming apparatus closest to the apparatus.

[4] The selection unit sets the priority order of the image forming apparatuses in which the altitude difference between the image forming apparatus and the image forming apparatus is greater than or equal to a reference value, and the image forming apparatus in which the altitude difference between the image forming apparatus and the image forming apparatus is less than the reference value. The information processing terminal according to any one of [1] to [3], wherein the selection is performed further down.

  In the above invention, when the altitude difference (vertical distance between the own apparatus and the image forming apparatus) exceeds the reference value, it is determined that they are on different floors. Then, the image forming apparatus is selected by lowering the priority of the image forming apparatus existing on a different floor from the image forming apparatus existing on the same floor as the information processing terminal. The reference value may be determined based on the difference in elevation between the floors of the building.

[5] One or more areas are set for the real space,
[1] to [4], wherein the selection unit performs the selection by setting the priority of the image forming apparatuses existing in the same area as the own apparatus higher than the image forming apparatuses existing in other areas. The information processing terminal according to any one of the above.

  In the above invention, the area occupied by each living room in the real space is defined as an area, and the priority order of the image forming apparatuses existing in the same area as the information processing terminal is set higher than the priority order of the image forming apparatuses existing in other areas. Select an image forming apparatus. The area is preferably defined as a three-dimensional space. In the case where the image forming apparatus is arranged on only one floor, the area may be defined on a horizontal plane ignoring the height direction.

[6] A first position information acquisition unit that acquires position information of an information processing terminal having a function of transmitting a job to the image forming apparatus via a network;
A second position information acquisition unit that acquires position information of each image forming apparatus connected to the network;
Based on the position information of the information processing terminal acquired by the first position information acquisition unit and the position information of the image forming apparatus acquired by the second position information acquisition unit, a power state is selected from the image forming apparatus. A selection unit for selecting an image forming apparatus that shifts to the ON side;
A power supply state management apparatus comprising: a transmission unit that transmits the transition request to the image forming apparatus selected by the selection unit.

  In the above invention, the power state management device acquires the position information of the information processing terminal and the position information of each image forming apparatus, and selects an image forming apparatus that transitions the power state to the ON side from these positional relationships, A power state transition request is transmitted to the selected image forming apparatus. For example, when there is a linear distance between the information processing terminal and the image forming apparatus, floor plan data, or the like from each position information, a path when a person actually walks between the information processing terminal and the image forming apparatus (route: A distance in consideration of walls, obstacles, floor differences, etc.) may be obtained, and the image forming apparatus may be selected according to the distance. Transitioning the power state to the ON side means that if the power state can be transitioned to multiple levels, it will be closer to a fully energized state (a state where power is supplied to all parts) than the current power state. This refers to transition, and is not limited to transition to full energization.

[7] The power state management apparatus according to [6], wherein the selection unit selects an image forming apparatus closest to the information processing terminal.

[8] The selection unit sets the priority order of the image forming apparatus in which the elevation difference between the information processing terminal and the image forming apparatus is equal to or greater than a reference value, and the image in which the elevation difference between the information processing terminal and the image forming apparatus is less than the reference value. The power supply state management apparatus according to [6] or [7], wherein the selection is performed by lowering the forming apparatus.

  The above invention is the same as the invention described in [4].

[9] One or more areas are set for the real space,
[6] to [8], wherein the selection unit performs the selection by setting a priority of an image forming apparatus existing in the same area as the information processing terminal higher than an image forming apparatus existing in another area. ] The power supply state management apparatus as described in any one of.

  The above invention is the same as the invention described in [5].

  According to the information processing terminal and the power supply state management device according to the present invention, the power source of the image forming apparatus located at a convenient location (for example, the nearest location) from the current position of the information processing terminal can be turned on. it can.

It is explanatory drawing which shows the structure of the system in 1st Embodiment, and the flow of information. 1 is a block diagram illustrating a schematic configuration of an image forming apparatus according to an embodiment of the present invention. 6 is an explanatory diagram illustrating an example of a transitionable power supply state table that lists power supply states that can be transitioned by the image forming apparatus. FIG. It is a block diagram which shows schematic structure of the information processing terminal which concerns on this Embodiment. It is a flowchart which shows operation | movement of the information processing terminal regarding transmission of a power supply state transition request. It is explanatory drawing which illustrated the layout of each floor of the 1st floor and the 2nd floor, and arrangement | positioning of an image forming apparatus and an information processing terminal. It is explanatory drawing which shows an example of the priority table which determined the priority order in consideration of the altitude difference. It is explanatory drawing which illustrated the layout of the floor in which room A, room B, and a passage exist, and arrangement of an image forming device and an information processing terminal. It is explanatory drawing which shows an example of the registration content of the database in which the area of the room A and the area of the room B were defined. It is explanatory drawing which shows an example of the installation area list 64 which shows the positional information and installation area of an information processing terminal and image forming apparatuses A and B. 10 is a flowchart illustrating an operation of an information processing terminal related to transmission of a power state transition request when an image forming apparatus that is closest is selected by a fourth selection determination method. It is explanatory drawing which illustrated the layout of the floor in which room A, room B, and a passage exist, and arrangement of an image forming device and an information processing terminal. 3 is an explanatory diagram showing an example of a priority table that lists radio field strengths and priorities of image forming apparatuses A, B, and C. FIG. An operation of an information processing terminal that transmits a power state transition request, and an operation for selecting which power state to request a transition according to a transition destination specified by a user and a power state of the image forming apparatus It is a flowchart shown. 10 is a flowchart showing processing for when the power state of the closest image forming apparatus is 3. 10 is a flowchart illustrating processing for when the power state of the closest image forming apparatus is 2. 6 is a flowchart illustrating processing for when the power state of the closest image forming apparatus is 1. It is explanatory drawing which shows the structure of the system in 2nd Embodiment, and the flow of information.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 shows a system configuration in the first embodiment. The system includes a plurality of image forming apparatuses 10 on a network 2 such as a LAN (Local Area Network) provided in an office or the like, and an information processing terminal 30 such as a personal computer having a function of transmitting a job to the image forming apparatus 10. (Hereinafter also referred to as PC) is connected.

  The network 2 includes a wired LAN and a wireless LAN. The image forming apparatus 10 and the information processing terminal 30 may be connected to the network 2 by either a wired LAN or a wireless LAN. In this embodiment, the image forming apparatus 10 is connected to the wired LAN. The network 2 is provided with a plurality of wireless LAN access points 3 connected to a wired LAN, and the information processing terminal 30 is connected to the network 2 through the nearest wireless LAN access point 3.

  In the present invention, when the information processing terminal 30 is turned on, the image forming apparatus 10 (image forming apparatuses A, B, and C in FIG. 1) that can be connected to the information processing terminal 30 via the network 2 is used. Search for an image forming apparatus (for example, the closest one) in the convenient location from the information processing terminal 30 and request that the image forming apparatus shift the power to the ON side (hereinafter referred to as power supply state transition) Provide a function to send a request.

  For example, the information processing terminal 30 uses GPS (Global Positioning System) to grasp the position of the own apparatus and collects position information from each image forming apparatus 10 (P1). Then, based on these, the image forming apparatus in the most convenient place is selected, and a request for switching the power state to the ON side is transmitted to the selected image forming apparatus (P2). To do.

  FIG. 2 shows a schematic configuration of the image forming apparatus 10. The image forming apparatus 10 has a copy function for optically reading a document image and printing the duplicate image on a recording paper, a scan function for saving the image data of the read document as a file, and transmitting the file to an external terminal, personal This is a so-called multi-function device having a print function for forming and outputting an image related to print data received from an external terminal such as a computer on a recording paper, a facsimile transmission / reception function, and the like. The image forming apparatus 10 (hereinafter also referred to as MFP) may be an apparatus having a function of receiving and executing a job from the information processing terminal 30. For example, the image forming apparatus 10 may be a printer having only a print function, A facsimile apparatus having a function of facsimile transmission of image data received from a terminal to the outside may be used.

  The image forming apparatus 10 includes a ROM (Read Only Memory) 13, a RAM (Random Access Memory) 14, and a nonvolatile memory via a bus 12 to a CPU (Central Processing Unit) 11 that controls the operation of the image forming apparatus 10. 15, a hard disk device 16, a reading unit 21, a printing unit 22, a display unit 23, an operation unit 24, a position information acquisition unit 25, and a network communication unit 27. Further, a power control unit 29 that controls power supply to each unit of the image forming apparatus 10 is provided.

  Various programs and fixed data are stored in the ROM 13, and the CPU 11 executes various processes according to these programs. The RAM 14 is used as a work memory for temporarily storing various data when the CPU 11 executes a program and an image memory for temporarily storing image data.

  The nonvolatile memory 15 is a rewritable memory that retains the stored contents even when the power is turned off. The nonvolatile memory 15 stores various setting contents (setting values) set for the image forming apparatus 10 and user information.

  The reading unit 21 optically reads a document image and acquires image data. The reading unit 21, for example, a light source that irradiates light on a document, a line image sensor that receives the reflected light for one line in the width direction, and a reflected image from the document is guided to the line image sensor to form an image. In addition to an optical system including a lens and a mirror to be moved, a moving mechanism that sequentially moves the reading position in units of lines in the length direction of the document by moving the mirror and the light source is provided.

  The printing unit 22 forms and outputs an image based on the image data on a recording sheet by an electrophotographic process. The printing unit 22 includes, for example, a recording paper transport device, a photosensitive drum, a charging device, an LD (Laser Diode) that is controlled to light according to input image data, and laser light emitted from the LD. It is configured as a so-called laser printer having a scanning unit that scans on a photosensitive drum, a developing device, a transfer separating device, a cleaning device, and a fixing device. An LED printer that irradiates the photosensitive drum with an LED (Light Emitting Diode) instead of the laser light or another type of printer may be used.

  The display unit 23 functions to display various operation screens, setting screens, guidance screens, and the like. The display unit 23 includes a liquid crystal display. The operation unit 24 has a function of receiving various operations from the user. The operation unit 24 includes a touch panel that is provided on the surface of the liquid crystal display and detects a pressed coordinate position, various operation buttons such as a start button, a stop button, and a numeric keypad.

  The position information acquisition unit 25 functions to acquire position information indicating the installation position of the image forming apparatus 10. Here, position information is acquired using GPS. Note that position information where the image forming apparatus 10 is installed may be obtained using a separate portable terminal having a GPS function, and may be input and stored in the image forming apparatus 10. That is, since the location of the image forming apparatus 10 is hardly moved, the position information is detected by a separate apparatus, and the detected position information is stored in the nonvolatile memory 15 of the image forming apparatus 10 or the like. May be configured.

  The network communication unit 27 communicates with the information processing terminal 30 and other external devices (for example, other image forming apparatuses 10 and servers) through the network 2 and performs a function of transmitting and receiving various data. The network communication unit 27 operates independently to receive and analyze a packet even when the CPU 11 or the like is not operating due to a shift to a power saving state or a power off state, and sends a necessary response to the packet transmission source. It has a function to reply. Here, the network communication unit 27 includes an information holding unit 28 that stores position information and information indicating the current power state of the image forming apparatus 10, and receives an acquisition request for the position information and the power state from the information processing terminal. If this happens, the corresponding information is read from the information holding unit 28 and returned.

  The power supply control unit 29 converts the power from the commercial power source into an appropriate voltage and supplies the power to each unit of the image forming apparatus 10. In addition, according to an instruction from the CPU 11, a function is provided for controlling whether to supply power or stop supplying power for each power supply destination.

  FIG. 3 shows a transitionable power supply state table 50 that lists power supply states that the image forming apparatus 10 can transition to. Transition to power supply states 1 to 4 is possible. The power supply state 1 is a state in which power is supplied only to the network communication unit 27 and power is suppressed to a minimum. In this state, packets can be received, analyzed, and transmitted, and responses can be made to packets such as presence confirmations from other devices on the network.

  The power supply state 2 is a state in which the minimum power supply is supplied to the network communication unit 27, the CPU 11 and the memory (ROM 13 and RAM 14) and the power supply to the other parts is stopped, and the power consumption is relatively suppressed. . In this state, processing that does not use the performance of the CPU 11 and data storage in the memory are possible, and print data from the information processing terminal can be received and stored in the memory.

  In the power supply state 3, normal power is supplied to the network communication unit 27 and the CPU 11, the ROM 13, the RAM 14, the nonvolatile memory 15, and the hard disk device 16, but the other parts (reading unit 21, printing unit 22, display unit 23, The power supply to the operation unit 24 and the position information acquisition unit 25) is stopped. In this state, the performance of the CPU 11 can be fully used and image processing and the like can be performed, but jobs using the reading unit 21 and the printing unit 22 cannot be executed. Further, the display unit 23 turns off the display.

  The power supply state 4 is a state in which power is supplied to all parts of the image forming apparatus 10 including the reading unit 21, the printing unit 22, the display unit 23, the operation unit 24, the position information acquisition unit 25, and the like. Although it is the state that consumes the most power, all functions can be used.

  The image forming apparatus 10 automatically transitions to the power supply state 3 in the power supply state 4 when a job using the reading unit 21 or the printing unit 22 or a standby state without an operation from the user continues for a predetermined time or longer. If the state in which the image processing or the like is not performed in the power supply state 3 continues for a predetermined time or longer, the state automatically changes to the power supply state 2. It is designed to automatically transition to. Since the CPU 11 is operating in the power supply states 2, 3, and 4, the CPU 11 manages and controls which power supply state is to be changed, and the power supply control unit 29 switches the power supply to each unit according to the control. The return from the power supply state 1 to the power supply state 2, 3, 4 is performed based on a return signal output from the network communication unit 27 to the power supply control unit 29 or the CPU 11, for example.

  FIG. 4 shows a schematic configuration of the information processing terminal 30 according to the present embodiment. The information processing terminal 30 has a function of sending a job such as a scan job or a print job to the image forming apparatus 10 to request execution. The information processing terminal 30 is a personal computer on which an OS program, a driver program for the image forming apparatus 10, an application program for creating and editing documents and images, a power management program for controlling the power state of the image forming apparatus 10, and the like are installed. (PC) etc. Here, the information processing terminal 30 is configured as a portable notebook PC.

  The information processing terminal 30 includes a CPU 31. The CPU 31 includes a ROM 33, a RAM 34, a nonvolatile memory 35, a position information acquisition unit 36, a network I / F unit 37, and a hard disk device (HDD) 38 via a bus 32. The input / output I / F 39 is connected. Further, a display device 41 such as a liquid crystal display and an operation input device 42 such as a keyboard and a mouse are connected via an input / output I / F 39.

  The ROM 33 stores a startup program and fixed data. The RAM 34 stores a program loaded from the hard disk device 38. The RAM 34 is used as a work memory for temporarily storing various data when the CPU 31 executes a program.

  The nonvolatile memory 35 is a memory whose stored contents are not destroyed even when the power is turned off, and stores system information (name and IP address) of the information processing terminal 30, user information, various setting information, and the like.

  The position information acquisition unit 36 acquires position information of the current position of the information processing terminal 30. Here, position information is acquired using GPS.

  The network I / F unit 37 performs a function of transmitting / receiving various data to / from the image forming apparatus 10 and other external devices via the network 2. Here, a function (wireless LAN function) for wirelessly connecting and communicating with the wireless LAN access point 3 of the network 2 is provided.

  The hard disk device 38 is a large-capacity nonvolatile storage device, and stores an OS program, a driver program for the image forming apparatus 10, a power management program, various application programs, files, data, and the like.

  FIG. 5 shows the operation of the information processing terminal 30 related to transmission of a power supply state transition request for changing the power supply state of the image forming apparatus 10 to the ON side (side approaching the power supply state 4). This operation is realized by executing a power management program. When the information processing terminal 30 is turned on (step S101), the information processing terminal 30 acquires the position information from each image forming apparatus 10 that can be connected to the information processing terminal 30 via the network 2 (step S102). ).

  Specifically, the information processing terminal 30 broadcasts a position information acquisition request on the connected network (LAN) 2. Upon receiving the position information acquisition request, the network communication unit 27 of the image forming apparatus 10 returns the position information stored in the information holding unit 28 (or power state information when power supply information is also requested) as a response. The information processing terminal 30 returns the information acquisition request to the information processing terminal 30 that is the transmission source, and the information processing terminal 30 receives it. As described above, the image forming apparatus 10 can return a response to the position information acquisition request in any of the power supply states 1 to 4.

  The information processing terminal 30 acquires the position information of the current position of the own apparatus by the position information acquisition unit 36, and the position information of the own apparatus and the position of each image forming apparatus included in the response received from each image forming apparatus 10. Based on the information, the image forming apparatus 10 in a convenient location is selected and determined from the own apparatus (step S103). Here, the image forming apparatus 10 closest to the own apparatus is selected and determined as the image forming apparatus located in a convenient location from the own apparatus. Then, a power state transition request is transmitted to the determined image forming apparatus 10 (step S104), and the process ends. Receiving the power state transition request, the image forming apparatus 10 transitions its power state to the power-on side (for example, to the power state 4).

  Here, the selection determination method for the closest image forming apparatus in step S103 will be described.

(1) First Selection Determination Method The distance (straight line distance in the three-dimensional space) is obtained from the position information (coordinates) of the image forming apparatus 10 and the position information (coordinates) of the information processing terminal 30, and the maximum distance is obtained. The short image forming apparatus 10 is selected.

(2) Second Selection Determination Method When only the distance (straight line distance) based on coordinates is selected by comparison as in the first selection determination method, another positional determination as shown in FIG. The image forming apparatus D on the floor becomes the closest apparatus, and the moving distance of the user is actually increased. That is, in the arrangement of FIG. 6, the information processing terminal 30 and the image forming apparatuses A, B, and C are on the same floor (first floor), and the distances are 17 m to the image forming apparatus A, 15 m to the image forming apparatus B, and the image, respectively. The distance to the forming apparatus C is 20 m (see the priority table 54 in FIG. 7). On the other hand, the image forming apparatus D is on another floor (second floor), but is almost directly above the information processing terminal 30. Therefore, in the linear distance, as shown in the priority table 54 of FIG. The shortest distance is 10m.

  Therefore, in the second selection determination method, the priority of the image forming apparatus 10 in which the elevation difference (vertical distance) between the information processing terminal 30 and the image forming apparatus 10 is equal to or higher than the reference value is set, and the elevation difference is less than the reference value. The image forming apparatus 10 that is lower than the image forming apparatus 10 is selected and determined. In the examples of FIGS. 6 and 7, priority is assigned in the order of short distance among the image forming apparatuses A, B, and C on the same floor, and then the order of the image forming apparatus D on another floor is assigned. ing. As a result, the image forming apparatus B having the shortest distance in the same floor is selected and determined as the closest image forming apparatus.

  The reference value for determining whether or not they are on the same floor is set in advance to an arbitrary value. It is recommended to set the difference in elevation between the floors of each floor of the building to be installed. For example, the reference value may be set to a value slightly lower than the elevation difference between the floors of each floor, or the elevation difference between the floors of each floor. Further, when (altitude difference between information processing terminal 30 and image forming apparatus 10 / reference value) is calculated with reference value = level difference between floors of each floor, the integer part of the quotient is calculated as information processing terminal 30. And how many floors the image forming apparatus 10 is separated. For example, if it is 0, it is the same floor, if it is 1, it is 1 floor apart like the 2nd floor and the 3rd floor, and if it is 2, it can be understood that it is 2 floors apart like the 2nd floor and the 4th floor. Therefore, the priority may be lowered as the floor is separated. For example, there is no image forming apparatus on the same floor, and the image forming apparatus 10 separated by one floor (for example, 20 m away from a straight line) and the image forming apparatus 10 separated from the second floor (for example, 15 m away from a straight line) Is present), the one that is one floor away is preferentially selected.

(3) Third Selection Determination Method When an image forming apparatus having the closest distance (straight line distance) is simply selected based on the positional relationship as shown in FIG. 8, the image forming apparatus A becomes the closest image forming apparatus. . However, in the case of the positional relationship as shown in FIG. 8, there is a wall between the information processing terminal 30 and the image forming apparatus A, so that the distance that the user actually moves becomes longer and it is necessary to move to another room. There is. And it may not be permitted to enter another room.

  Therefore, in the third selection determination method, the occupation range such as each room in the real space is registered as an area defined by, for example, four corner position coordinates (latitude, longitude, altitude). The priority of the image forming apparatus 10 existing in the same area as the information processing terminal 30 is set higher than the priority of the image forming apparatus 10 existing in another area, and the closest image forming apparatus is selected and determined. When an area is defined by a plane, the height of the area may be fixedly interpreted as a predetermined value (for example, 7 m), or an area having a different elevation within the same latitude / longitude range is defined. In this case, the height from the elevation of the lower area to the elevation before the elevation of the upper area may be interpreted as the height of the lower area. Alternatively, the height may be set for each area, and the area may be defined as a three-dimensional space. The area defining method is not limited to the method of setting the coordinates of the four corners, and may be arbitrary. For example, it may be defined by five or more coordinates, or a circular or cylindrical area may be defined.

  FIG. 9 shows an example of registration contents of the database 60 in which the area of the room A and the area of the room B shown in FIG. 8 are defined and registered by coordinates A, B, C, D at the four corners, respectively. The information processing apparatus 30 compares the information registered in the database 60 with the position information of the information processing terminal 30 and the image forming apparatus 10 to determine in which area each apparatus exists.

  For example, in the arrangement of FIG. 8, the installation area of the information processing terminal 30 and each image forming apparatus 10 is determined by comparing with the database 60 of FIG. 9, and an installation area list 64 as shown in FIG. 10 is created. The In the installation area list 64 of FIG. 10, it is determined that the information processing terminal 30 exists in the living room B, the image forming apparatus A exists in the living room A, and the image forming apparatus B exists in the living room B. Then, the information processing terminal 30 selects the image forming apparatus in the same area (installation area) as the information processing terminal 30 with higher priority than those in the other areas. In the example of FIG. 10, the image forming apparatus B in the same room B as the information processing terminal 30 is selected and determined as the closest image forming apparatus.

  Note that the storage location of the database 60 may be arbitrary. For example, the information processing terminal 30 may store, each image forming apparatus 10 may store, or a separate server may store. When the information is stored in other than the information processing terminal 30, the information processing terminal 30 acquires the area information from the storage destination.

  Next, a fourth selection determination method for selecting and determining the closest image forming apparatus (an image forming apparatus at a convenient location) without using position information will be described.

  In the configuration using the fourth selection determination method, the image forming apparatus 10 includes a radio wave transmission unit that transmits a radio wave carrying identification information (for example, a device number) of the device itself instead of the position information acquisition unit 25. . The radio wave carrying the identification information is transmitted omnidirectionally to the surroundings, for example. All the image forming apparatuses 10 transmit with the same radio wave intensity. The information processing terminal 30 includes a radio wave reception unit instead of the position information acquisition unit 36.

  FIG. 11 shows an operation flow of the information processing terminal 30 that selects and determines an image forming apparatus by the fourth selection determination method and transmits a power state transition request. When the power is turned on (step S201), the information processing terminal 30 receives the radio wave transmitted from each image forming apparatus 10 (step S202), and the power source of the image forming apparatus that has the strongest radio field intensity is connected to the power source. The image forming apparatus 10 (the closest image forming apparatus) that is the transmission destination of the state transition request is selected and determined (step S203). Then, a power state transition request is transmitted to the determined image forming apparatus 10 (step S204), and the process is terminated.

  In the case of the positional relationship as shown in FIG. 12, the strength of the radio wave received by the information processing terminal 30 is as shown in the priority order table 70 of FIG. That is, the radio field intensity from the image forming apparatus B in the same room A as the information processing terminal 30 and close to the information terminal 30 is the strongest. The image forming apparatus C exists closer to the image forming apparatus A than the image forming apparatus A. However, since the image forming apparatus C is in the living room B and sandwiches the wall, the radio wave intensity is low. For this reason, the radio field intensity of the image forming apparatus A, which is located farther away than the image forming apparatus C but is in the same room A as the information processing terminal 30 and without an obstacle, is higher than that of the image forming apparatus C. It is high. The same thing occurs when the image forming apparatus C is on a different floor from the information processing terminal 30.

  In this way, if you select and decide on the basis of radio field strength, if there are obstacles such as walls, floors, and ceilings in the middle, the radio field strength will be affected by that effect, so image formation that exists in the same room The priority of the apparatus becomes higher than that of image forming apparatuses existing in other rooms or other floors, and an image forming apparatus that is convenient for the user is selected.

  In addition, when the transmission intensity of the radio wave by each image forming apparatus 10 is known, the transmission intensity of the radio wave by each image forming apparatus 10 may be different, and based on the information of the radio field intensity at the time of transmission, the intensity at the time of reception May be corrected and normalized.

  Next, an operation for selecting a transition destination power state requested by a power state transition request will be described. Here, as described above, each image forming apparatus 10 can assume the power supply states 1 to 4.

There are the following methods for selecting and determining the power state of the transition destination.
(A) A power state transition request for transition to the power state 4 is transmitted regardless of which power state the image forming apparatus (the closest image forming apparatus) determined as the transmission destination of the power state transition request is. By doing so, it is possible to keep the image forming apparatus in a printable state at any time.

(B) Accepting designation of a desired power state from the user (the designated power state is referred to as “designated transition destination”), obtaining the power state from the nearest image forming apparatus, and obtaining the nearest image forming apparatus A power state transition request to the designated transition destination is transmitted only when the power state of the destination is different from the designated transition destination. The designated transition destination may be inquired to the user when the power is turned on, or may be received from the user in advance and stored. In addition, when the transition destination is not designated from the user, a predetermined default state (for example, the power supply state 4) may be processed as the designated transition destination.

(C) When the specified transition destination is compared with the power state acquired from the nearest image forming apparatus, and the designated transition destination is a power state having a higher priority than the power state of the nearest image forming apparatus Only when the power supply state transition request is sent to the designated transition destination.

  For example, when the power supply state shown in FIG. 3 can be taken, the priority may be defined as power supply state 1 <power supply state 2 <power supply state 3 <power supply state 4. In this way, even if the user who was using the system has started up in the power supply state 4, the user who came later makes a transition to a lower priority state than the power supply state 4, such as the power supply state 2. Therefore, it is possible to avoid a situation in which a function that the previous user wants to use cannot be used.

In addition, the following can be performed by allowing the user to set the power state transition destination.
1. When it is desired to receive print data, the designated transition destination is set to the power supply state 2 so that the data reception of the nearby image forming apparatus 10 can be performed when the information processing terminal 30 is turned on. You can leave it ready.
2. When it is desired to use only a function for saving image data not to be printed or downloading a driver from the image forming apparatus 10, the information processing terminal is set by setting the power supply state 3 as a designated transition destination. As the power of 30 is turned on, the nearby image forming apparatus 10 can be set in a state where a desired function can be used.
3. If it is desired to keep the printable state at any time, by setting the designated transition destination to the power supply state 4, it is possible to print a nearby image forming apparatus when the information processing terminal 30 is turned on. Can be in a state.

  FIG. 14 shows an operation flow of the information processing terminal 30 when transmitting a power state transition request to the transition destination selected and determined by the method based on (c). When the power is turned on (step S301), the information processing terminal 30 selects and determines the image forming apparatus 10 closest to the terminal itself (step S302). The method for determining the closest image forming apparatus 10 may be any of the methods described so far.

  Next, it is checked whether or not the power state designated by the user (designated transition destination) is the power state 4 (step S303). If it is the power state 4 (step S303; Y), the selection is determined in step S302. A power state transition request to power state 4 is transmitted to the image forming apparatus 10 (closest image forming apparatus) (step S304), and the process is terminated.

  When the designated transition destination is not the power supply state 4 (step S303; N), information indicating the power supply state is acquired from the closest image forming apparatus 10 selected and determined in step S302 (step S305). If the power supply state of the closest image forming apparatus 10 is the power supply state 4 (step S306; Y), it is not necessary to transmit a power supply state transition request, and thus this process is terminated.

  When the power supply state of the closest image forming apparatus 10 is the power supply state 3 (step S307; Y), processing for when the power supply state is 3 is performed (step S308). If the power supply state of the closest image forming apparatus 10 is the power supply state 2 (step S309; Y), processing for when the power supply state is 2 is performed (step S310). When the power supply state of the nearest image forming apparatus 10 is the power supply state 1 (step S311; Y), processing for when the power supply state is 1 is performed (step S312).

  FIG. 15 shows processing for when the power state of the nearest image forming apparatus 10 is 3 (details of step S308 in FIG. 14). If the designated transition destination is the power state 4 (step S341; Y), a power state transition request for requesting the transition to the power state 4 is transmitted to the closest image forming apparatus 10 (step S342). End the process. If the designated transition destination is not the power state 4 (step S341; N), the process is terminated without transmitting the power state transition request.

  FIG. 16 shows processing for when the power state of the nearest image forming apparatus 10 is 2 (details of step S310 in FIG. 14). If the designated transition destination is the power state 4 (step S351; Y), a power state transition request for requesting the transition to the power state 4 is transmitted to the closest image forming apparatus 10 (step S352). End the process. If the designated transition destination is the power state 3 (step S353; Y), a power state transition request for requesting the transition to the power state 3 is transmitted to the closest image forming apparatus 10 (step S354). End the process. If the designated transition destination is neither power state 4 nor 3 (step S353; N), the process is terminated without transmitting the power state transition request.

  FIG. 17 illustrates processing for when the power state of the nearest image forming apparatus 10 is 1 (details of step S312 in FIG. 14). If the designated transition destination is the power state 4 (step S361; Y), a power state transition request for requesting the transition to the power state 4 is transmitted to the closest image forming apparatus 10 (step S362). End the process. If the designated transition destination is the power state 3 (step S363; Y), a power state transition request for requesting the transition to the power state 3 is transmitted to the closest image forming apparatus 10 (step S364). End the process.

  If the designated transition destination is power state 2 (step S365; Y), a power state transition request for requesting transition to power state 2 is transmitted to the closest image forming apparatus 10 (step S366). End the process. If the designated transition destination is neither the power state 4, 3, or 2 (step S365; N), the process ends without transmitting the power state transition request.

<Second Embodiment>
In the first embodiment, the information processing terminal 30 selects and determines the closest image forming apparatus 10, and transmits a power state transition request from the information processing terminal 30 to the image forming apparatus 10. In the second embodiment, a power state transition request is transmitted from the management server (power state management apparatus) connected to the network 2 to the image forming apparatus 10.

  FIG. 18 shows a system configuration in the second embodiment. In addition to the configuration shown in the figure, a management server 80 is further connected to the wired LAN.

  In the second embodiment, when the information processing terminal 30 is turned on and the initialization is completed, the position information acquisition unit 36 detects the position of the own apparatus, and the position information indicating the position is designated by the user. Information indicating the power supply state (designated transition destination) is transmitted to the management server 80 (P11). Receiving this, the management server 80 selects the image forming apparatus 10 closest to the information processing terminal 30 as one of the first to third selection determination methods described in the first embodiment (using radio field intensity). The power source state transition request is transmitted to the determined image forming apparatus 10 (P12). The management server 80 may use any of the selection determinations described in the first embodiment as a method of selecting and determining the transition destination power state requested by the power state transition request.

  In the management server 80, position information of each image forming apparatus 10 is stored in advance. In addition, a database in which areas indicating ranges such as living rooms are registered is held. The management server 80 compares the position information of the information processing terminal 30 received from the information processing terminal 30 with the position information of each information processing terminal 30 stored in advance, and the database 60 in which the area is registered. The image forming apparatus (the closest image forming apparatus) that is the transmission destination of the power state transition request is selected and determined. Further, the power status is acquired from the nearest image forming apparatus, and this is compared with the designated transition destination set by the user of the information processing terminal 30, and the power status requested to the nearest image forming apparatus and The necessity of transmission of the power state transition request is determined. If transmission is necessary, a power state transition request to the determined power state is transmitted.

  The embodiment of the present invention has been described with reference to the drawings. However, the specific configuration is not limited to that shown in the embodiment, and there are changes and additions within the scope of the present invention. Are also included in the present invention.

  For example, in the embodiment, when the information processing terminal 30 is powered on, the operation related to the transmission of the power state transition request is performed. However, the execution timing of the operation is not limited to this. For example, when the driver program of the image forming apparatus 10 is activated or when an application program for creating a document is activated, the image forming apparatus 10 may be activated. The operation timing related to the transmission of the power state transition request may be configured to be arbitrarily changed.

  In addition, the method for determining the selection of the closest image forming apparatus is not limited to that shown in the embodiment. For example, layout information (map information) such as a living room and a passage is registered, and a route when walking between the image forming apparatus 10 and the information processing terminal 30 and a distance (route) when the route is traced. And the closest image forming apparatus may be selected and determined. Also, find the score according to the distance and the route, add +1 point when the room is different, and +2 points every time the floor is different, and the one with the smallest total score is the most. A method of selecting and determining a near image forming apparatus may be used.

  Furthermore, the closest image forming apparatus may be selected and determined in consideration of other factors, for example, the processing capability and function of the image forming apparatus.

  Note that the information processing terminal 30 may transmit a job such as a print job to the image forming apparatus selected and determined as the closest image forming apparatus in the operation relating to the transmission of the power state transition request.

2 ... Network 3 ... Wireless LAN access point 10 ... Image forming device 11 ... CPU
12 ... Bus 13 ... ROM
14 ... RAM
DESCRIPTION OF SYMBOLS 15 ... Nonvolatile memory 16 ... Hard disk device 21 ... Reading part 22 ... Printing part 23 ... Display part 24 ... Operation part 25 ... Position information acquisition part 27 ... Network communication part 28 ... Information holding part 29 ... Power supply control part 30 ... Information processing terminal 31 ... CPU
32 ... Bus 33 ... ROM
34 ... RAM
35 ... Nonvolatile memory 36 ... Position information acquisition unit 37 ... Network I / F unit 38 ... Hard disk device 39 ... Input / output I / F
DESCRIPTION OF SYMBOLS 41 ... Display apparatus 42 ... Operation input device 50 ... Transition possible power supply state table 54 ... Priority table 60 ... Database 64 ... Installation area list table 70 ... Priority order table 80 ... Management server

Claims (9)

An information processing terminal having a function of transmitting a job to an image forming apparatus through a network,
A detection unit that detects a distance between the image forming apparatus connected to the network and the image forming apparatus;
A selection unit that selects an image forming apparatus that changes the power state to the on side from the image forming apparatus based on the distance detected by the detection unit;
An information processing terminal comprising: a transmission unit that transmits the transition request to the image forming apparatus selected by the selection unit. The detection unit includes a first position information acquisition unit that acquires position information of the image forming apparatus, and a second position information acquisition unit that acquires position information of the image forming apparatus. The information processing terminal according to claim 1, wherein the distance is detected from position information of the own apparatus acquired by the acquisition unit and position information of the image forming apparatus acquired by the second position information acquisition unit. The information processing terminal according to claim 1, wherein the selection unit selects an image forming apparatus closest to the apparatus. The selection unit lowers the priority order of the image forming apparatus in which the altitude difference between the image forming apparatus and the image forming apparatus is equal to or higher than a reference value, and lowers the priority order of the image forming apparatus in which the altitude difference between the image forming apparatus and the image forming apparatus is less than the reference value. The information processing terminal according to any one of claims 1 to 3, wherein the selection is performed. One or more areas are set for the real space,
The selection unit performs the selection by setting the priority of an image forming apparatus existing in the same area as the own apparatus higher than that of an image forming apparatus existing in another area. The information processing terminal according to claim 1. A first position information acquisition unit that acquires position information of an information processing terminal having a function of transmitting a job to the image forming apparatus via a network;
A second position information acquisition unit that acquires position information of each image forming apparatus connected to the network;
Based on the position information of the information processing terminal acquired by the first position information acquisition unit and the position information of the image forming apparatus acquired by the second position information acquisition unit, a power state is selected from the image forming apparatus. A selection unit for selecting an image forming apparatus that shifts to the ON side;
A power supply state management apparatus comprising: a transmission unit that transmits the transition request to the image forming apparatus selected by the selection unit. The power state management apparatus according to claim 6, wherein the selection unit selects an image forming apparatus closest to the information processing terminal. The selection unit determines the priority order of the image forming apparatuses in which the altitude difference between the information processing terminal and the image forming apparatus is greater than or equal to the reference value, and the image forming apparatus in which the altitude difference between the information processing terminal and the image forming apparatus is less than the reference value. The power supply state management apparatus according to claim 6 or 7, wherein the selection is performed by lowering the selection. One or more areas are set for the real space,
9. The selection unit according to claim 6, wherein the selection unit performs the selection by setting a priority of an image forming apparatus existing in the same area as the information processing terminal higher than that of an image forming apparatus existing in another area. The power supply state management device according to any one of the above.

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