JP2009003793A - Terminal unit and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform power supply control to power saving mode responding to usage condition based on acceleration information of a terminal unit. <P>SOLUTION: A terminal unit includes: an acceleration sensor 21 which acquires acceleration information detecting acceleration of the handy terminal 10; a flash memory 17 which memorizes acceleration information acquired by the acceleration sensor 21; a power supply control part 20 which controls switching between normal electric power mode performing normal electric power supply and power saving mode performing electric power supply only to necessary constitution elements; a timekeeping part 19 which times time information; and a CPU 11 which sets switching time for switching from the normal electric power mode to the power saving mode based on the memorized acceleration information and controls switching to the power saving mode by the power supply control part 20 when time information timed by the timekeeping part 19 elapses the switching time. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a terminal device and a program.

  2. Description of the Related Art Conventionally, some terminal devices such as handy terminals and mobile phones have a power saving function that automatically shifts to a power saving mode after a predetermined time without performing an operation in a power-on state.

In addition, the mobile phone includes an acceleration sensor, and the acceleration sensor detects a physical behavior when the user views the screen of the mobile phone, and controls the transition to the power saving mode or the return from the power saving mode according to the detection result. The structure is considered (for example, refer patent document 1).
JP 2007-80219 A

  However, in the conventional configuration, the attitude of the terminal device is detected from the acceleration obtained from the acceleration sensor. For this reason, it has not been possible to perform switching control of the power source from the normal power mode to the power saving mode in accordance with the usage status of the terminal device.

  The subject of this invention is performing the power supply control to a power saving mode according to the use condition of a terminal device.

  In order to solve the above-mentioned problem, the terminal device according to claim 1 stores acceleration information acquired by detecting acceleration of the device itself and acquiring acceleration information, and acceleration information acquired by the acceleration detecting device. Storage means, power supply control means for switching control between a normal power mode for supplying normal power, and a power saving mode for supplying power only to necessary components, timing means for timing time information, and the storage Based on the acceleration information thus set, a switching time from the normal power mode to the power saving mode is set, and when the time information timed by the time measuring means has passed the switching time, the power saving control means sets the power saving means. Control means for switching to the power mode.

  The invention according to claim 2 is the terminal device according to claim 1, wherein the storage means stores the acceleration information in association with the month or day of the week or time zone information timed by the timekeeping means, The control means causes the power supply control means to switch to the power saving mode according to the elapse of the switching time set based on the month, day of the week, or time zone.

  According to a third aspect of the present invention, in the terminal device according to the first or second aspect, the terminal device includes a position detection unit that detects a position of the own device and obtains position information, and the storage unit includes the acceleration information in the acceleration information. The position information acquired by the position detection means is stored in association with each other, and the control means is controlled to switch to the power saving mode by the power supply control means according to the lapse of the switching time set based on the position information. I do.

  According to a fourth aspect of the present invention, in the terminal device according to any one of the first to third aspects, the control means acquires the acceleration information at a predetermined time interval, and averages the acquired acceleration information. A value is calculated, a threshold is calculated from the maximum and minimum values of the average value of the calculated acceleration information, the calculated threshold is compared with the average value of the acquired acceleration information, and the comparison result is The switching time is set accordingly.

  According to a fifth aspect of the present invention, in the terminal device according to the fourth aspect, the control means calculates a threshold value different from the threshold value, and calculates the calculated threshold value and the average value of the acquired acceleration information. Compare.

  According to the sixth aspect of the present invention, the computer includes an acceleration detection unit that detects acceleration of the device itself and acquires acceleration information, a storage unit that stores acceleration information acquired by the acceleration detection unit, and a normal power supply. A power control means for switching control between a normal power mode to be performed and a power saving mode for supplying power only to necessary components, a clock means for timing time information, and the normal power mode based on the stored acceleration information A time for switching from the power saving mode to the power saving mode, and when the time information counted by the time measuring means passes the switching time, the power control means controls the switching to the power saving mode. It is a program for.

  ADVANTAGE OF THE INVENTION According to this invention, the power supply control to a power saving mode can be performed according to the use condition based on the acceleration information of a terminal device.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to the illustrated example.

  First, the apparatus configuration of the present embodiment will be described with reference to FIG. FIG. 1 shows an internal configuration of the handy terminal 10 of the present embodiment.

  The handy terminal 10 according to the present embodiment is a terminal device for reading a barcode attached to a product at the time of accounting and inventory, inputting an order quantity at the time of inventory, etc. in a store or the like.

  The handy terminal 10 includes a CPU (Central Processing Unit) 11 as a control unit, an input unit 12, a RAM (Random Access Memory) 13, a display unit 14, a ROM (Read Only Memory) 15, a communication unit 16, and a flash as a storage unit. A memory 17, a scanner unit 18, a timer unit 19, a power source control unit 20 as a power source control unit, an acceleration sensor 21 as an acceleration detection unit, a GPS (Global Positioning System) unit 22 as a position detection unit, and the like. Each unit is connected via a bus 23.

  The CPU 11 centrally controls each part of the handy terminal 10. The CPU 11 develops a program specified from the system program and various application programs stored in the ROM 15 in the RAM 13 and executes various processes in cooperation with the program expanded in the RAM 13.

  The CPU 11 samples the acceleration data detected by the acceleration sensor 21 in association with the current time (time number described later) and position information (area information described later) in cooperation with the learning program, and uses the acceleration data as a reference threshold value. Is calculated, the reference threshold value is compared with the acceleration data, the switching time from the normal power mode to the power saving mode is set according to the comparison result, and stored in the flash memory 17.

  Also, the CPU 11 refers to the switching time stored in the flash memory 17 when using the handy terminal 10 in cooperation with the learning result reflection program, and is detected by the current time measured by the time measuring unit 19 and the GPS unit 22. The power control unit 20 controls the power for the switching time corresponding to the position information.

  The input unit 12 includes a keypad having cursor keys, character input keys such as numerals, and various function keys, and outputs an input signal of each key pressed by the operator to the CPU 11. The input unit 12 may be configured as a touch panel integrally with the display unit 14.

  The RAM 13 is a volatile memory, has a work area for storing various programs to be executed, data related to these various programs, and the like, and temporarily stores information. The display unit 14 includes an LCD (Liquid Crystal Display), an ELD (ElectroLuminescent Display), and the like, and performs screen display according to a display signal from the CPU 11.

  The ROM 15 is a storage unit in which information on various programs and various data is stored in advance for reading only. The ROM 15 stores a learning program and a learning result reflecting program.

  The communication unit 16 includes a wireless antenna, and communicates with an external device (not shown) in a wireless LAN (Local Area Network) format. The communication unit 16 includes a connection terminal to a cradle (not shown) that is connected to an external device for communication, and performs communication with the external device in a state where the handy terminal 10 is placed on the cradle. The communication unit 16 may be configured to perform wired communication with an external device via a communication cable or the like.

  The flash memory 17 is a storage unit that stores information in a readable and writable manner. The flash memory 17 stores a time table 30, a position acceleration information unit 40, an area acceleration information unit 50, a position area information unit 60, a learning command information unit 70, a threshold information unit 80, and the like, which will be described later.

  The scanner unit 18 is a component that optically reads a barcode or the like attached to a product. The scanner unit 18 includes a light emitting unit for irradiating a barcode or the like, and a light receiving unit that receives reflected light emitted from the light emitting unit and reflected by the barcode or the like and converts it into an electrical signal. The scanner unit 18 performs light irradiation and information reading operations under the control of the CPU 11 in accordance with a barcode reading instruction input in the input unit 12.

  The time measuring unit 19 has a built-in time measuring circuit, and measures and outputs the current time and date. The power supply control unit 20 performs power supply control to each part of the handy terminal 10 from a battery power supply (not shown). In particular, the power supply control unit 20 supplies normal power to each part of the handy terminal 10 and supplies power only to necessary components when not used for a predetermined time (such as the display unit 14). Switch to power saving mode (stopping power supply to some components).

  The acceleration sensor 21 detects the triaxial acceleration of the handy terminal 10 and outputs it as acceleration data. FIG. 2 shows an example of the relationship of acceleration with respect to time.

Consider the acceleration with respect to the usage time of the handy terminal 10 in one of the three axes. The data output from the acceleration sensor 21 is calibrated so as to be 0 [G (= 9.8 [m / s ² ])] when the handy terminal 10 is stationary. Furthermore, in the present embodiment, only the magnitude of acceleration is required, and the direction represented by positive and negative is not required, so the absolute value of the data output from the acceleration sensor 21 is taken. Thus, the corrected acceleration data output from the acceleration sensor 21 is a graph having a positive value as shown in FIG. 2, for example.

  The GPS unit 22 includes a receiving unit that receives data transmitted from a GPS satellite, and calculates and outputs position information of the handy terminal 10 based on the received data and the like. The position information output from the GPS unit 22 is, for example, latitude and longitude information.

  Next, with reference to FIG. 2, a relationship between predetermined work and acceleration data when the handy terminal 10 is used in a store such as a convenience store will be described.

  The store includes an area where a register for accounting is installed (hereinafter referred to as a first area) and an area where inventory products on the back side of the store are stored (hereinafter referred to as a second area). The handy terminal 10 is mainly used in the first area and the second area. In the first area, at the time of accounting for a product, a store clerk as a user reads the barcode attached to the product to be accounted for by the scanner unit 18 and performs accounting using the register.

  FIG. 2 shows acceleration data corresponding to the elapsed time of accounting processing corresponding to one customer in accounting processing in the first area. As shown in FIG. 2, the section T1 is a time during which the user lifts the handy terminal 10 on the desk and prepares to read the barcode of the customer's product. It can be seen that in the section T1, the acceleration data increases rapidly.

  The section T2 is a time during which barcodes of a plurality of products are sequentially read using the handy terminal 10 lifted by the user. It can be seen that the acceleration data is stable at a relatively low value in the section T2. After the section T2, the user places the handy terminal 10 on the desk, performs accounting processing by the register, and then moves to the sections T1 and T2 corresponding to the customer when the next customer comes. . Thus, when acceleration data becomes large, the use frequency of the handy terminal 10 also becomes high.

  In the first area, the state in which the handy terminal 10 is moved increases in the time zone when there are many customers to check out, the frequency of use increases, and the value of acceleration data also increases. For example, it is a time zone for breakfast and lunch. On the contrary, in the time zone when there are few customers to check out, the handy terminal 10 is often stationary, the frequency of use is reduced, and the value of acceleration data is also reduced, so the time for switching to the power saving mode is reduced. It is preferable to shorten it.

  In the second area, when a product is inventoried, a store clerk as a user reads the barcode attached to the product to be inventoried by the scanner unit 18 and inputs the inventory quantity and the order quantity via the input unit 12. As described above, the work contents are different in the first area and the second area, and the acceleration data (usage status) of the handy terminal 10 with respect to the time zone is also different. That is, the acceleration data (usage status) has a relationship corresponding to time (band) and area (position).

  Next, information stored in the flash memory 17 will be described in detail with reference to FIGS. FIG. 3 shows the configuration of the time table 30. FIG. 4 shows a configuration of the position acceleration information unit 40. FIG. 5 shows the configuration of the area acceleration information unit 50. FIG. 6 shows the configuration of the position area information unit 60. FIG. 7 shows the configuration of the learning command information unit 70. FIG. 8 shows the configuration of the threshold information unit 80.

As shown in FIG. 3, the time table 30 stored in the flash memory 17 is
It has a time number 31 and a time zone 32. The time table 30 is a table in which the time number 31 and the time zone 32 are associated with each other. The time number 31 is an identification number that is sequentially assigned every hour with a predetermined time zone (here, 8: 0 to 9:00) as 0 in the 24 hours of the day. The time zone 32 is a time zone divided every hour. In the time zone 32, the time of 0 seconds is included on the rear side of the time zone range. For example, “8:00 to 9:00” in the time zone 32 means “8:00:01 to 9:00:00”.

  As illustrated in FIG. 4, the position acceleration information unit 40 stored in the flash memory 17 includes a time 41, position information 42, and acceleration data 43. The position acceleration information unit 40 is information in which sampled acceleration data 43 is stored in association with time 41 and position information 42. Time 41 is the time when sampling acceleration data. The position information 42 is position information of the handy terminal 10 at the time of sampling acceleration data. The acceleration data 43 is acceleration data detected and corrected by the acceleration sensor 21. The position information 42 is represented by, for example, latitude and longitude data. In the position information 42 of FIG. 4, the position information of the area A is represented by A1, A2,..., And the position information of the area B is represented by B1. Area A, area B, and the like are, for example, the above-described first area, second area, and the like.

  As shown in FIG. 5, the area acceleration information unit 50 stored in the flash memory 17 includes area information 51, position information 52, time 53, time number 54, and acceleration data 55. The area acceleration information unit 50 is information in which each item of the position acceleration information unit 40 is associated with the area information 51 and the time number 54. The area information 51 is an identification number of a store area. The position information 52 is the same position information as the position information 42. Time 53 is the same time as time 41. The time number 54 is the same time number as the time number 31. The acceleration data 55 is acceleration data similar to the acceleration data 43.

  As shown in FIG. 6, the position area information unit 60 stored in the flash memory 17 includes area information 61 and area details 62. The position area information unit 60 is information that associates area information with area details. The area information 61 is the same area information as the area information 51. The area detail 62 is information indicating the range of each area, and is represented by a range of latitude and longitude information, for example. For example, in the area details 62 of FIG. 6, it is assumed that “Area A” represents the latitude and longitude ranges of Area A, and “Area B” represents the latitude and longitude ranges of Area B.

  As shown in FIG. 7, the learning command information unit 70 stored in the flash memory 17 includes area information 71, a time number 72, an acceleration average value 73, and a switching time 74. The learning command information unit 70 is information that stores the acceleration average value and the switching time that are appropriately calculated in association with the area information 71 and the time number 72. The area information 71 is the same area information as the area information 51. The time number 72 is the same time number as the time number 54. The acceleration average value 73 is an average value of acceleration data every hour. The switching time 74 is a switching time from the normal power mode to the power saving mode.

  As shown in FIG. 8, the threshold information unit 80 stored in the flash memory 17 has a reference threshold T (j) (j: variable of position information) 81. The threshold information unit 80 is information that stores a reference threshold 81 for determining whether the handy terminal 10 is used frequently or not frequently.

  Next, the operation of the handy terminal 10 will be described with reference to FIGS. FIG. 9 shows the flow of the learning process. FIG. 10 shows a flow of position information storage processing of learning processing. FIG. 11 shows the flow of the learning process average value and threshold value calculation process. FIG. 12 shows the flow of the learning process switching time setting process. FIG. 13 shows the flow of learning result reflection processing.

  First, the learning process will be described with reference to FIGS. The learning process samples the acceleration data during normal work, learns the usage status of the handy terminal 10, and learns the switching time from the normal power mode to the power saving mode based on the usage status (acceleration data). Is calculated and set as

  In the handy terminal 10, for example, the learning program read from the ROM 15 and appropriately expanded in the RAM 13 triggered by the input of a learning processing execution instruction from the user via the input unit 12, and the cooperation of the CPU 11. Thus, the learning process is executed.

  As shown in FIG. 9, first, a correction condition for acceleration data is set such that the user places the handy terminal 10 in a stationary state, and the acceleration data output from the acceleration sensor 21 in this state is 0 [G]. It is set (step S11). Hereinafter, unless otherwise specified, the acceleration data from the acceleration sensor 21 is acceleration data output from the acceleration sensor 21 and corrected under the setting conditions in step S11. Hereinafter, unless otherwise specified, the switching time is the switching time from the normal power mode to the power saving mode.

  Then, an initial value of 3 minutes is set to the variable default of the switching time, and 15 seconds is set to the number of seconds s of the sampling interval of the acceleration data (step S12). The values set for the variable default and the number of seconds s are not limited to this example, and may be other values. Assume that the initial value of the variable default is 3 minutes, for example, the normal switching time. Further, in steps S12 to S15, in parallel with the execution of the learning process, it is assumed that the user performs normal work (accounting work, inventory work, etc.) using the handy terminal 10.

  Then, the count number scount of the second counter and the count number hcount of the time counter are set to 0 (reset), and counting of the count numbers scount and hcount is started (step S13). After the count start in step S13, the count number scount is incremented by 1 every 1 second according to the time information output from the timer unit 19. Similarly, the count number hcount is incremented by 1 for every hour elapsed according to the time information output from the timer unit 19.

  Then, it is determined whether or not the count number hcount ≧ 24 [time] (step S14). If hcount <24 (step S14; NO), position information storage processing is executed (step S15), and the process proceeds to step S14.

  Here, with reference to FIG. 10, the position information storage processing in step S15 will be described. First, it is determined whether or not the count number scount = seconds s (step S151). If scount = s is not satisfied (step S151; NO), the process proceeds to step S151. When scount = s (step S151; YES), acceleration data is sampled and acquired by the acceleration sensor 21 (step S152). Then, the absolute value of the acceleration data acquired in step S152 is calculated (step S153).

  Then, the current time measured by the timer unit 19 is acquired, and the current position information of the handy terminal 10 is acquired by the GPS unit 22 (step S154). Then, the acceleration data calculated in step S153 is stored in the position acceleration information unit 40 in the flash memory 17 in association with the current time and position information acquired in step S154 (step S155). In step S155, acceleration data, current time, and position information are stored in acceleration data 43, time 41, and position information 42 of the position acceleration information section 40, respectively.

  Then, the count number scount is set (reset) to 0, the count of the count number scount is started (step S156), and the position information storage process ends. After the count start in step S156, the count number scount is incremented by 1 every 1 second according to the time information output from the time measuring unit 19.

  Returning to FIG. 9, when hcount ≧ 24 (step S14; YES), the position acceleration information section 40 stored in the flash memory 17 is read (step S16). And the position acceleration information part 40 read by step S16 is clustered by the position information 42, and the area acceleration information part 50 is produced | generated (step S17). In step S17, clustering is performed on the position information 42 that is presumed to be the same area, an identification number (0 to the number of clusters) is assigned to each area, the assigned identification number is set as area information 51, and position acceleration information The area acceleration information unit 50 is generated by using the time 41, the position information 42, and the acceleration data 43 of the unit 40 as the time 53, the position information 52, and the acceleration data 55.

  Then, the time table 30 stored in the flash memory 17 is read out, and the time number 54 is generated from the time 53 using the time table 30 and stored in the area acceleration information unit 50 (step S18). In step S18, the time table 30 is referred to, and the time 53 of the area acceleration information unit 50 generated in step S17 is converted into a time number 54 corresponding thereto. Then, the number of clusters acquired in step S17 is set to L as the maximum value of area information (step S19).

  Then, in accordance with the clustering executed in step S17, area information that is the number of clusters and area details that are ranges including position information corresponding to the area information are generated. A position area information section 60 is generated and stored in the flash memory 17 (step S20).

  Then, an average value and threshold value calculation process is executed (step S21). Here, the average value and threshold value calculation processing in step S21 will be described with reference to FIG. First, 0 is set to the variable j of the area information (step S211).

  Then, it is determined whether or not the variable j = the number of clusters L that is the maximum value of the area information (step S212). If j = L is not satisfied (step S212; NO), the area acceleration information unit 50 stored in the flash memory 17 is read, and the time of the record of the area information L (j) in which the value of the area information 51 is the variable j The arithmetic average value of the acceleration data of the record having the same number 54 is calculated, and the arithmetic average value is stored in the learning command information unit 70 in the flash memory 17 together with the related information as the acceleration average value (step S213). In step S213, the calculated acceleration average value, the corresponding time number, and area information L (j) are stored in the acceleration average value 73, time number 72, and area information 71 of the learning command information section 70, respectively. The

  Then, the maximum value and the minimum value are extracted from the acceleration average value corresponding to the variable j calculated in step S213 (step S214). Then, the arithmetic average value of the maximum value and the minimum value of the acceleration average value extracted in step S214 is calculated, and the calculated arithmetic average value is used as the threshold value information unit 80 in the flash memory 17 as the reference threshold value T (j) 81. (Step S215). Then, the variable j is incremented by 1 (step S216), and the process proceeds to step S212. If j = L (step S212; YES), the average value and threshold value calculation process is terminated.

  Returning to FIG. 9, after the execution of step S21, a switching time setting process is executed (step S22), and the learning process ends. Here, the switching time setting process of step S22 will be described with reference to FIG.

  First, the area information variable j is set to 0 (reset) (step S221). Then, it is determined whether or not the variable j = the number of clusters L (step S222). If j = L is not satisfied (step S222; NO), the time number variable time is set to 0 (step S223).

  Then, the learning command information unit 70 and the threshold information unit 80 stored in the flash memory 17 are read out, and the acceleration average value 73 corresponding to the area information 71 of the variable j and the time number 72 of the variable time is represented by the variable j. It is determined whether the reference threshold value T (j) 81 is smaller than (step S224). When acceleration average value ≧ T (j) (step S224; NO), the switching time is set to the variable default, and the set switching time is set to the area information 71 of the variable j and the time number 72 of the variable time. The corresponding switching time 74 is stored (step S225).

  Then, the variable time is incremented by 1 (step S226). If acceleration average value <T (j) (step S224; YES), the acceleration average value of the acceleration average value 73 corresponding to the area information 71 of the variable j and the time number 72 of the variable time corresponds to the variable j. It is determined whether or not it is smaller than a reference threshold value T (j) / 2 (step S227).

  When acceleration average value <T (j) / 2 (step S227; YES), the switching time is set to the variable default-1 minutes, and the set switching time is set to the area information 71 of the variable j and the variable time. It is stored in the switching time 74 corresponding to the time number 72 (step S228), and the process proceeds to step S226. When acceleration average value ≧ T (j) / 2 (step S227; NO), the switching time is set to the variable default-30 seconds, and the set switching time is set to the area information 71 of the variable j and the variable time. It is stored in the switching time 74 corresponding to the time number 72 (step S229), and the process proceeds to step S226.

  After execution of step S226, it is determined whether or not the variable time = 23 (step S230). When the variable time is not 23 (step S230; NO), the process proceeds to step S224. If the variable time = 23 (step S230; YES), the variable j is incremented by 1 (step S231), and the process proceeds to step S222. If j = L (step S222; YES), the switching time setting process ends.

  Next, the learning result reflection process will be described with reference to FIG. The learning result reflection process is a process for performing power control of the handy terminal 10 using the learning command information unit 70 set in the learning process.

  In the handy terminal 10, for example, the learning result reflection program read from the ROM 15 and appropriately developed in the RAM 13 is triggered by the fact that the power is turned on after the learning process is executed, and learning is performed in cooperation with the CPU 11. Result reflection processing is executed.

  First, it is determined whether or not to end the learning result reflection process (step S31). In step S31, for example, when the power is turned off, it is determined that the learning result reflection process is finished. If the learning result reflecting process is not terminated (step S31; NO), it is determined whether or not acceleration data indicating movement of the handy terminal 10 is detected by the acceleration sensor 21 (step S32). For example, it is assumed that when the acceleration data by the acceleration sensor 21 is other than 0, an acceleration indicating the movement of the handy terminal 10 is detected.

  When the learning result reflecting process is not finished (step S31; NO), it is determined whether or not the acceleration of the acceleration data indicating the movement of the handy terminal 10 is detected by the acceleration sensor 21 (step S32). In step S32, it is determined whether or not the handy terminal 10 has been lifted (started use) by the user. In step S32, for example, it is assumed that an acceleration indicating the movement of the handy terminal 10 is detected when the acceleration data from the acceleration sensor 21 is other than zero.

  When the acceleration is not detected (step S32; NO), the process proceeds to step S32. When acceleration is detected (step S32; YES), normal power supply control is set in the power supply control unit 20 (step S33). That is, when a predetermined time (3 minutes) elapses without moving the handy terminal 10, the normal power mode is shifted to the power saving mode.

  Then, the variable count of the switching time count is set to 0 (reset), and the count of the variable count is started (step S34). After the count start in step S34, the variable count is incremented every 1 second according to the current time output from the time measuring unit 19.

  Then, the variable default of the switching time is set to 3 minutes (step S35). Then, similarly to step S32, it is determined whether or not acceleration data indicating the movement of the handy terminal 10 is detected by the acceleration sensor 21 (step S36). When acceleration is detected (step S36; YES), the variable count of the switching time count is set to 0 (reset), and the count is started (step S37). After the count start in step S37, the variable count is incremented every 1 second in accordance with the current time output from the timer unit 19.

  Then, the position area information unit 60 is read from the flash memory 17, and the area information 61 of the area details 62 corresponding to the position information acquired by the GPS unit 22 is acquired (step S38). Then, the time table 30 is read from the flash memory 17, the current time is acquired from the time measuring unit 19, and the time number 31 of the time zone 32 corresponding to the current time is acquired (step S39).

  Then, the learning instruction information unit 70 is read from the flash memory 17, and the switching time 74 corresponding to the area information 71 of the area information acquired in step S38 and the time number 72 of the time number acquired in step S39 is obtained. The acquired switching time 74 is set to a variable default (step S40), and the process proceeds to step S36.

  When the acceleration is not detected (step S36; NO), it is determined whether or not the variable count is larger than the variable default (step S41). When count ≦ default is satisfied (step S41; NO), the process proceeds to step S36. When count> default (step S41; YES), power-saving power control is set in the power control unit 20 (step S42), and the process proceeds to step S31. That is, when the switching time elapses without moving the handy terminal 10, the normal power mode is shifted to the power saving mode. When the learning result reflection process is ended (step S31; YES), the learning result reflection process is ended.

  As described above, according to the present embodiment, the acceleration data corresponding to the use frequency detected by the acceleration sensor 21, the time (time number) measured by the time measuring unit 19 at the time of the detection, and the GPS unit 22 acquired. Based on the usage status corresponding to the position information (area information), the switching time from the normal power mode to the power saving mode is set and stored in the flash memory 17 as the learning command information unit 70. Further, referring to the learning command information unit 70, the power supply control unit 20 is subjected to power control at the switching time 74 corresponding to the current time measured by the time measuring unit 19 and the position information acquired by the GPS unit 22. For this reason, the power supply control from the normal power mode to the power saving mode can be performed according to the use situation based on the acceleration data of the handy terminal 10 for each time and position of use.

  Further, the acceleration data detected by the acceleration sensor 21 is sampled at a time interval s according to the position and time, the average value of the acquired acceleration data is calculated, and the maximum value and minimum value of the calculated acceleration average value are calculated. A reference threshold T (j) is calculated, the calculated reference threshold T (j) is compared with the acquired acceleration average value, and a switching time for each time zone (time number) is determined according to the comparison result. Set. For this reason, it is possible to easily set an appropriate switching time corresponding to the usage status of the handy terminal 10.

  Further, in the switching time setting process, the acceleration average value and the reference threshold value T (j) are compared, and when the acceleration average value is smaller than the reference threshold value T (j), the acceleration average value and the reference threshold value T (j) are further increased. / 2, and a different switching time is set according to the comparison result. When the average acceleration value is smaller than the reference threshold value T (j) / 2, the switching time is set particularly small. For this reason, the switching time can be set finely, and finer power saving settings are possible.

  The description in the above embodiment is an example of the terminal device and the program according to the present invention, and the present invention is not limited to this.

  In the above-described embodiment, the switching time from the normal power mode to the power saving mode is set shorter than the reference switching time according to the acceleration data (usage status). However, the present invention is not limited to this. . For example, the switching time to be used may be set longer than the reference switching time. For example, if the switching time is short and the mode switching frequency is high even though the handy terminal is used frequently, set the switching time to be used longer than the standard switching time to prevent frequent mode switching. It is good also as a structure. Alternatively, the reference switching time may be set low, and the switching time to be used may be set longer than the reference switching time.

  In the above embodiment, the switching time is set according to the area information (position information) and the time zone (time number), and the switching time is changed according to the current area information and the current time. It is not limited to this. For example, the switching time is set according to the time zone (time number), the switching time is changed according to the current time, or the switching time is set according to the area information (position information), and the current area information is set. The switching time may be changed accordingly. Furthermore, it is good also as a structure which sets switching time according to other time information, such as a day of the week and a month.

In the above embodiment, the area information (position information) is calculated by clustering the position information of the sampled data. However, the present invention is not limited to this. For example, the area information may be defined by the user in advance, and it is only necessary to identify in which area the handy terminal is used.
Moreover, in the said embodiment, although it was set as the structure which uses a handy terminal as a terminal device, it is not limited to this. The terminal device may be another electronic device such as a PDA (Personal Digital Assistants), a mobile phone, or a PHS (Personal Handyphone System).

  Moreover, it is needless to say that the detailed configuration and detailed operation of each component of the handy terminal 10 in the above embodiment can be appropriately changed without departing from the spirit of the present invention.

It is a block diagram which shows the internal structure of the handy terminal of embodiment which concerns on this invention. It is a figure which shows an example of the relationship of the acceleration with respect to time. It is a figure which shows the structure of a time table. It is a figure which shows the structure of a position acceleration information part. It is a figure which shows the structure of an area acceleration information part. It is a figure which shows the structure of a position area information part. It is a figure which shows the structure of a learning command information part. It is a figure which shows the structure of a threshold-value information part. It is a flowchart which shows a learning process. It is a flowchart which shows the positional information storage process of a learning process. It is a flowchart which shows the average value and threshold value calculation process of a learning process. It is a flowchart which shows the switching time setting process of a learning process. It is a flowchart which shows a learning result reflection process.

Explanation of symbols

10 Handy terminal 11 CPU
12 Input unit 13 RAM
14 Display 15 ROM
16 Communication unit 17 Flash memory 18 Scanner unit 19 Timekeeping unit 20 Power supply control unit 21 Acceleration sensor 22 GPS unit 23 Bus

Claims (6)

Acceleration detecting means for detecting acceleration of the device and acquiring acceleration information;
Storage means for storing acceleration information acquired by the acceleration detection means;
Power control means for switching control between a normal power mode for performing normal power supply and a power saving mode for supplying power only to necessary components;
A timing means for timing time information;
Based on the stored acceleration information, a switching time from the normal power mode to the power saving mode is set, and when the time information timed by the time measuring means passes the switching time, the power control means And a control unit that controls to switch to the power saving mode. The storage means stores the acceleration information in association with the month or day of the week or time zone information timed by the timekeeping means,
2. The terminal device according to claim 1, wherein the control unit causes the power control unit to perform switching control to the power saving mode according to the elapse of the switching time set based on the month, day of the week, or time zone. It has a position detecting means for detecting the position of its own device and acquiring position information,
The storage means stores the position information acquired by the position detection means in association with the acceleration information,
The terminal device according to claim 1, wherein the control unit performs switching control to the power saving mode by the power source control unit in accordance with the elapse of the switching time set based on the position information.   The control means acquires the acceleration information at predetermined time intervals, calculates an average value of the acquired acceleration information, calculates a threshold value from the maximum value and the minimum value of the calculated average value of the acceleration information, The terminal device according to any one of claims 1 to 3, wherein the calculated threshold value is compared with an average value of the acquired acceleration information, and the switching time is set according to the comparison result.   The terminal device according to claim 4, wherein the control unit calculates a threshold value different from the threshold value, and compares the calculated threshold value with an average value of the acquired acceleration information. Computer
Acceleration detecting means for detecting acceleration of the device and acquiring acceleration information;
Storage means for storing acceleration information acquired by the acceleration detection means;
Power control means for switching control between a normal power mode for performing normal power supply and a power saving mode for supplying power only to necessary components;
A timing means for timing time information,
Based on the stored acceleration information, a switching time from the normal power mode to the power saving mode is set, and when the time information timed by the time measuring means passes the switching time, the power control means Control means for switching to the power saving mode;
Program to function as.

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