JP2011090541A - Emergency earthquake quick report terminal and method for warning position movement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an emergency earthquake quick report terminal which outputs a warning when there is possibility of movement of the terminal by a distance which may exert influence on positional information. <P>SOLUTION: The emergency earthquake quick report terminal 1 includes: a main power supply state detection means 4 for detecting a state of power supply from a main power supply 2 to the emergency earthquake quick report terminal 1; a timing means 5 having a timing function; a warning determination means 6 for determining whether a warning is to be output or not; and an output means 7 for outputting a warning. The main power supply state detection means 4 outputs a disconnecting signal when detecting a drop in a power supply voltage generated based on power supplied form the main power supply 2 to the emergency earthquake quick report terminal 1, and when detecting a rise from the dropped state of the power supply voltage, outputs a connection signal. A positional information storage means 3 stores present time when the disconnecting signal or the connection signal is output. The warning determination means 6 determines whether a warning is to be output or not based on a time difference between output time of the connection signal and output time of the disconnecting signal just before the connection signal, and the output means 7 outputs the warning according to the determination result of the warning determination means 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a stationary emergency earthquake warning terminal and a position movement warning method.

  The emergency earthquake bulletin terminals that receive the emergency earthquake bulletin include a mobile emergency earthquake bulletin terminal and a stationary emergency earthquake bulletin terminal. The earthquake early warning terminal calculates, for example, the seismic intensity at the current position based on the earthquake early warning and the location (current position) of the terminal itself. A mobile emergency earthquake bulletin terminal can input current position information, which is information indicating the current position of the terminal, at any time by using a GPS receiver. However, the stationary earthquake early warning terminal is generally designed so that the current position information of the terminal is input by a user or the like.

  However, even a stationary type earthquake early warning terminal can be moved, and in such a case, it is necessary to re-input the position information after the movement into the stationary type earthquake early warning terminal. However, the user can easily determine whether or not the stationary earthquake early warning terminal may have been moved, and whether or not the position information input to the stationary earthquake early warning terminal indicates the correct installation position. May not be able to be determined. If the location information remains uncorrected even though the earthquake early warning terminal has been moved, calculation processing such as seismic intensity and time to reach the earthquake early warning will be performed based on incorrect location information. The user may not be able to receive emergency earthquake early warnings.

  As an apparatus capable of notifying a user that there is a possibility of being moved, Patent Document 1 describes an information processing apparatus that determines a power supply state based on a connection state with a commercial power outlet. . The information processing apparatus described in Patent Document 1 monitors the connection state of the power plug of the information processing apparatus to the commercial power outlet, and if the power supply from the commercial power supply is detected, the apparatus is considered to have moved. .

  Further, Patent Document 2 describes a television receiving device that detects a connection state with respect to a commercial power outlet. The television receiver described in Patent Document 2 has one condition that it is detected that the power plug is reconnected to the commercial power outlet, that is, the power plug has been disconnected from the commercial power outlet. It is considered that the apparatus has been moved on the condition that one of the two has been detected.

JP 2004-259000 A (paragraphs 0036-0039 and 0046) JP 2006-211099 (paragraphs 0015-0016, FIG. 2)

  However, as described in Patent Document 1 and Patent Document 2, when it is considered that the device has moved when the device-side power plug is unplugged from the commercial power outlet, the power supply plug of the earthquake early warning terminal is removed instead of moving. Even if it is just a case, or even if the power source plug of the earthquake early warning terminal is removed and the distance is moved so as not to affect the position information, the emergency earthquake early warning terminal will be regarded as moved. “Position information is not affected” means that there is no change in position information to be input before movement and position information to be input after movement.

  Therefore, the present invention provides an emergency earthquake warning terminal and a position movement warning method capable of outputting a warning when the distance between a point before movement and a point after movement may affect position information. The purpose is to provide.

  An emergency earthquake warning terminal according to the present invention is an emergency earthquake warning terminal provided with position information storage means for storing position information, and main power supply state detection means for detecting the state of power supply from the main power supply to the earthquake early warning terminal. And a time measuring means having a time measuring function, a warning determining means for determining whether or not to output a warning, and an output means for outputting a warning, wherein the main power supply state detecting means is provided from the main power supply to the emergency earthquake warning terminal. When a drop in the power supply voltage created based on the supplied power is detected, a disconnect signal is output, and when an increase from a state where the power supply voltage is reduced is detected, a connection signal is output. When a disconnection signal or a connection signal is output by the power supply state detection means, the current time indicated by the timing means is stored, and the warning determination means is when the connection signal stored in the position information storage means is output. And whether to output a warning based on an off period, which is a time between the disconnection signal immediately before the connection signal and the output time of the connection signal, and the output means outputs a warning according to the determination result of the warning determination means. It is characterized by outputting.

  A position movement warning method according to the present invention is a position movement warning method in an earthquake early warning terminal that stores position information, and a reduction in power supply voltage created based on electric power supplied from a main power source to an earthquake early warning terminal. When detected, a disconnection signal is output, and when a rise from a state where the power supply voltage has dropped is detected, a connection signal is output, and when a disconnection signal or connection signal is output, the current time is stored and the connection signal is output. Determining whether or not to output a warning based on an off period that is a time between the time when the disconnection signal is output immediately before the connection signal and outputting the warning according to the determination result To do.

  According to the present invention, a warning can be output when the distance between a point before movement and a point after movement may affect the position information.

It is a block diagram which shows the structure of 1st Embodiment of the earthquake early warning terminal by this invention. FIG. 3 is an explanatory diagram showing a relationship between a change in supply state of power supply current and a warning display on a display device in the earthquake early warning terminal shown in FIG. 1. In the earthquake early warning terminal of 2nd Embodiment, it is explanatory drawing which shows the relationship between the change of the supply state of a power supply current, and the warning display of a display apparatus. It is a block diagram which shows the principal part of the earthquake early warning terminal by this invention.

Embodiment 1. FIG.
FIG. 1 is a block diagram showing a configuration of a first embodiment (Embodiment 1) of an emergency earthquake warning terminal according to the present invention. With reference to FIG. 1, the structure of the earthquake early warning terminal 10 of the 1st Embodiment of this invention is demonstrated.

  An emergency earthquake bulletin terminal 10 shown in FIG. 1 is a stationary earthquake early warning terminal, and includes a main power circuit 11, a main power detector 12, a sub power battery 13, a diode 14, and a main circuit 15.

  When a power plug (not shown) of the earthquake early warning terminal 10 is connected to a power outlet of the AC main power supply 30, a power supply current is supplied from the main power supply circuit 11 to the main circuit 15.

  The main power supply detection unit 12 detects the state of power supply from the AC main power supply 30 to the emergency earthquake warning terminal 10 by detecting power supply from the main power supply circuit 11 to the main circuit 15. When the power plug is removed from the power outlet of the AC main power supply 30, the power supply current is not supplied from the main power supply circuit 11 to the main circuit 15 (the main power supply circuit 11 is turned off). At this time, the voltage of the power source detected by the main power source detection unit 12 drops. For example, when it is detected that the voltage has fallen below a predetermined threshold, the main power source detection unit 12 sends a main power cut signal to the main circuit 15. Output to a microcomputer 17 (hereinafter referred to as a microcomputer).

  The sub power supply battery 13 is, for example, a battery built in the earthquake early warning terminal 10 and supplies current to the main circuit 15 when the main power supply circuit 11 is off, for example. The power supply current supplied from the main power supply circuit 11 or the sub power supply battery 13 is supplied to the main circuit 15 via the diode 14. The diode 14 is inserted so that the power supply current supplied from the main power supply circuit 11 or the sub power supply battery 13 does not flow backward.

  The main circuit 15 includes a key input interface 16, a microcomputer 17, a battery 18, a nonvolatile memory 19, and a display device 20.

  The key input interface 16 is an interface for inputting the location information of the earthquake early warning terminal 10 and outputs the input location information of the earthquake early warning terminal 10 to the microcomputer 17.

  The microcomputer 17 has a clock circuit 21 having a timekeeping function, and controls each part of the main circuit 15. The microcomputer 17 includes, for example, a CPU that performs control according to a program. The battery 18 supplies power to the timepiece circuit 21. Even when the earthquake early warning terminal 10 is not supplied with the power supply current from the AC main power supply 30 or the sub power supply battery 13, the timepiece circuit 21 can measure the time by the power supplied from the battery 18.

  Data is written to the nonvolatile memory 19 by the microcomputer 17, and the data stored in the nonvolatile memory 19 is read by the microcomputer 17. For example, when the main power supply detection unit 12 outputs a main power supply disconnection signal, the microcomputer 17 records a flag indicating that the main power supply circuit 11 is turned off and the current time (off time) in the nonvolatile memory 19. . The non-volatile memory 19 stores the position information of the earthquake early warning terminal 10 input by the key input interface 16.

  When there is a possibility that the position of the earthquake early warning terminal 10 has moved, the display device 20 displays a position movement warning to the user according to the control of the microcomputer 17. The microcomputer 17 determines whether or not the position of the emergency earthquake warning terminal 10 may have moved.

  FIG. 2 is an explanatory diagram showing the relationship between the change in the supply state of the power supply current and the warning display on the display device in the earthquake early warning terminal shown in FIG. Referring to FIG. 2, the earthquake early warning terminal 10 according to the first embodiment performs detailed operation for displaying a position movement warning on the display device 20 in accordance with a change in the supply state of the power supply current from the AC main power supply 30. Will be explained.

  FIG. 2 exemplifies that the power plug is removed from the power outlet of the AC main power supply 30 (the AC main power supply 30 is turned off) at the time indicated by (A). When the power plug is removed from the power outlet of the AC main power supply 30, the power output supplied to the main power circuit 11 is turned off. Then, the output voltage of the main power supply circuit 11 decreases. When the main power supply detection unit 12 detects that the output voltage of the main power supply circuit 11 has dropped below a predetermined threshold (for example, equivalent to the Low potential shown in FIG. 2), the main power supply disconnection signal is sent to the microcomputer 17. Output. In the first embodiment, the threshold is a voltage at which the microcomputer 17 cannot operate. However, since power is supplied from the sub power source battery 13 to the microcomputer 17 at the time indicated by (A), the microcomputer 17 is operable.

  The microcomputer 17 records in the nonvolatile memory 19 a flag indicating that the main power-off signal has been output (a flag indicated by P in FIG. 2) and the off time. In the example shown in FIG. 2, the power supply to the main circuit 15 is maintained because the sub power battery 13 is on. When the flag indicating that the main power supply circuit 11 is turned off is written in the nonvolatile memory 19, the microcomputer 17 outputs information indicating a position movement warning to the display device 20. The display device 20 displays a position movement warning according to the information input from the microcomputer 17.

  FIG. 2 illustrates that at the time indicated by (B), the AC main power supply 30 is turned off and the sub power supply battery 13 is turned off. Since the power supply output supplied to the main power supply circuit 11 is turned off, the main power supply detection unit 12 outputs a main power supply cut signal to the microcomputer 17. At the time indicated by (B), since the main power supply circuit 11 and the sub power supply battery 13 are both turned off, no power is supplied to the main circuit 15.

  In FIG. 2, at the time indicated by (C), a power plug is connected to the power outlet of the AC main power supply 30 (the AC main power supply 30 is turned on), and the power supply current is supplied from the main power supply circuit 11 to the main circuit 15. It is exemplified that the main power supply circuit 11 is turned on. When the main power supply circuit 11 is turned on, the microcomputer 17 writes a flag indicating that the main power supply circuit 11 is turned off to the nonvolatile memory 19 at that time. When the flag indicating that the main power supply circuit 11 is turned off is written in the nonvolatile memory 19, the microcomputer 17 outputs information indicating a position movement warning to the display device 20. The display device 20 displays a position movement warning according to the information input from the microcomputer 17.

  FIG. 2 exemplifies that the sub power supply battery 13 is turned on from the state where both the main power supply circuit 11 and the sub power supply battery 13 are turned off at the time indicated by (D). Even when the power supply current is supplied from the sub power supply battery 13 to the main circuit 15, the microcomputer 17 writes a flag indicating that the main power supply circuit 11 is turned off to the nonvolatile memory 19 and displays the display device 20. The information indicating the position movement warning is output to. The display device 20 displays a position movement warning according to the information input from the microcomputer 17.

  Such a main power supply detection unit 12 can detect a situation in which the earthquake early warning terminal 10 is disconnected from the AC main power supply 30 by monitoring the power output from the main power supply circuit 11 to the main circuit 15. When the earthquake early warning terminal 10 is disconnected from the AC main power supply 30 (for example, corresponding to the time shown in FIG. 2A), the position of the stationary emergency earthquake breaking terminal 10 can be moved. Therefore, it is possible to provide the user with a position movement warning.

  Further, in such an earthquake early warning terminal 10, when the main power supply circuit 11 is turned off when power is not supplied from the sub power supply battery to the main circuit 15 (for example, the time shown in FIG. 2B). However, when power is supplied from the main power supply circuit 11 or the sub power supply battery 13 to the main circuit 15 (for example, corresponding to the time indicated by (C) or (D) in FIG. 2), the microcomputer 17 Since it is possible to recognize that the earthquake early warning terminal 10 has been previously disconnected from the AC main power supply 30, it is possible to provide a user with a warning of position movement.

Embodiment 2. FIG.
The configuration of the second embodiment (Embodiment 2) of the earthquake early warning terminal according to the present invention is the same as the configuration of the earthquake early warning terminal 10 of the first embodiment shown in FIG.

  FIG. 3 is an explanatory diagram illustrating a relationship between a change in the supply state of the power supply current and a warning display on the display device in the earthquake early warning terminal according to the second embodiment. In the earthquake early warning terminal 10 of the second embodiment, the main power source detection unit 12 outputs a main power source cut signal and a main power source connection signal.

  Specifically, the power plug is removed from the power outlet of the AC main power supply 30, the main power supply circuit 11 is turned off, and the power supply voltage detected by the main power supply detection unit 12 is a predetermined first threshold value (for example, When it is detected that the voltage drops to less than 4.0 V.), the main power supply detection unit 12 outputs a main power supply cut signal to the microcomputer 17 of the main circuit 15. In the second embodiment, the first threshold value is a voltage at which the microcomputer 17 can operate.

  Then, a power plug is connected to the power outlet of the AC main power supply 30, the main power supply circuit 11 is turned on, the power supply voltage detected by the main power supply detection unit 12 rises again, and a predetermined second threshold (for example, 4.5V.) When detecting that the voltage has increased above, the main power supply detection unit 12 outputs a main power supply connection signal to the microcomputer 17 of the main circuit 15. Note that the first threshold value and the second threshold value may be the same value.

  When the main power supply disconnection signal is output from the main power supply detection unit 12, the microcomputer 17 indicates a flag indicating that the main power supply circuit 11 is turned off (a flag indicated by P in FIG. 3; hereinafter referred to as a P flag). .) And the current time (off time) are written in the nonvolatile memory 19. When the main power supply connection signal is output from the main power supply detection unit 12, the microcomputer 17 sets a flag indicating that the main power supply circuit 11 is turned on (a flag indicated by Q in FIG. The current time (ON time) is written in the nonvolatile memory 19.

  Note that the microcomputer 17 writes the P flag, the off time, the Q flag, and the on time to the nonvolatile memory 19 regardless of the presence or absence of the sub power battery 13 and the output state of the power from the sub power battery 13. .

  When the microcomputer 17 writes the flag indicating that the main power supply circuit 11 is turned on and the on time in the nonvolatile memory 19, the microcomputer 17 searches for the latest P flag and the off time written in the nonvolatile memory 19, Using the off time and the on time, the time during which the main power supply circuit 11 has been in the off state (off period) is calculated. Then, the microcomputer 17 compares the calculated off period with a predetermined warning display determination time set in advance and stored in the nonvolatile memory 19. The warning display determination time is preset and stored in the non-volatile memory 19 for a predetermined time when it is estimated that the earthquake early warning terminal 10 may be moved.

  If the off period exceeds a predetermined warning display determination time, the microcomputer 17 outputs information indicating a position movement warning to the display device 20. The display device 20 displays a position movement warning according to the information input from the microcomputer 17. If the off period does not exceed the predetermined warning display determination time, the microcomputer 17 does not output information indicating a position movement warning to the display device 20.

  Referring to FIG. 3, the earthquake early warning terminal 10 according to the second embodiment performs detailed operation for displaying a position movement warning on the display device 20 in accordance with a change in the supply state of the power supply current from the AC main power supply 30. Will be explained.

  At the time indicated by (E), (G), and (I) in FIG. 3, the AC main power supply 30 is turned off, and the main power supply detection unit has detected that the power supply voltage has dropped below a predetermined first threshold value. Is detected and a main power-off signal is output to the microcomputer 17. When the main power-off signal is output, the microcomputer 17 writes the P flag and the off time in the nonvolatile memory 19.

  At the time indicated by (F) in FIG. 3, the AC main power supply 30 is turned on, and the main power supply detection unit detects that the voltage of the power supply has risen above a predetermined second threshold, and the main power supply connection signal Is output to the microcomputer 17. The microcomputer 17 that has output the main power supply connection signal writes the Q flag and the ON time in the nonvolatile memory 19. Then, by using the latest P flag written in the nonvolatile memory 19 and the off time, that is, the off time and the on time written at the time indicated by (E), the off period of the main power supply circuit 11 is determined. calculate. Here, it is assumed that the calculated off period is equal to or longer than a predetermined warning display determination time. In this case, the microcomputer 17 outputs information indicating a position movement warning to the display device 20. The display device 20 displays a position movement warning according to the information input from the microcomputer 17.

  At the time indicated by (H) in FIG. 3, the AC main power supply 30 is turned on, and the main power supply detection unit 12 detects that the voltage of the power supply has risen above a predetermined second threshold, and connects to the main power supply. A signal is output to the microcomputer 17. When the main power supply connection signal is output, the microcomputer 17 writes the Q flag and the ON time in the nonvolatile memory 19. Then, the main power supply circuit 11 is turned off using the off time corresponding to the latest P flag written in the nonvolatile memory 19, that is, the off time and the on time written at the time indicated by (G). Calculate the period. Here, it is assumed that the calculated off period has not reached the predetermined warning display determination time. In this case, the microcomputer 17 does not output information indicating a position movement warning to the display device 20.

  As described above, in the earthquake early warning terminal according to the second embodiment, when the off period during which the power from the AC main power supply 30 is not supplied is less than the warning display determination time, the earthquake early warning terminal 10 The position movement warning is not displayed to the user when it is difficult to think that the arrangement position of the earthquake early warning terminal 10 has been moved, such as when the AC main power supply 30 is disconnected for a short time. .

  The warning displayed by the display device 20 may be automatically canceled after a predetermined time, for example, or the position information of the earthquake early warning terminal is reset (updated) by the key input interface 16 by a user operation. It may be released when it is done.

  FIG. 4 is a block diagram showing the main part of the earthquake early warning terminal according to the present invention. As shown in FIG. 4, the earthquake early warning terminal 1 is an earthquake early warning terminal provided with position information storage means 3 (for example, corresponding to the nonvolatile memory 19 shown in FIG. 1) for storing position information. Main power supply state detection for detecting the state of power supply from the power source 2 (for example, equivalent to the AC main power source 30 shown in FIG. 1) to the earthquake early warning terminal 1 (for example, equivalent to the earthquake early warning terminal 10 shown in FIG. 1) Means 4 (for example, corresponding to the main power source detection unit 12 shown in FIG. 1), time measuring means 5 having a time measuring function (for example, equivalent to the clock circuit 21 shown in FIG. 1), and whether to output a warning Warning determining means 6 (for example, equivalent to the microcomputer 17 shown in FIG. 1) and output means 7 (for example, equivalent to the display device 20 shown in FIG. 1) for outputting a warning. , Supplied from the main power source 2 to the earthquake early warning terminal 1 When a drop in the power supply voltage created based on the power to be detected is detected, a disconnection signal is output, and when an increase from the state where the power supply voltage is reduced is detected, a connection signal is output. When the disconnection signal or the connection signal is output by the state detection unit 4, the current time indicated by the time measuring unit 5 is stored, and the warning determination unit 6 outputs the connection signal stored in the position information storage unit 3. It is determined whether or not a warning is to be output based on a time (off period) between the time and the time when the disconnection signal immediately before the connection signal is output, and the output unit 7 determines the result of the warning determination unit 6. Is configured to output warnings.

  Further, in each of the above-described embodiments, the earthquake early warning terminal as shown in the following (1) to (3) is also disclosed.

(1) The warning determination means determines that the warning is output when the off period is equal to or longer than a predetermined warning output determination time (for example, as shown in FIGS. 3E to 3F). In situation, realized by the earthquake early warning terminal of the second embodiment). Such an earthquake early warning terminal can output a position movement warning to the user, excluding cases where it is difficult to think that the earthquake early warning terminal has moved, such as a short-time disconnection from the main power supply.

(2) The warning determination means calculates an off period when a connection signal is output by the main power supply detection unit, and determines whether or not warning display is performed (for example, the second embodiment) (Earthquake Earthquake Early Warning terminal). In such an earthquake early warning terminal, when the earthquake early warning terminal is moved, a warning of position movement can be output after the movement.

(3) A sub power source capable of supplying power to the earthquake early warning terminal is provided, and the main power state detecting means outputs a disconnection signal or a connection signal regardless of the power output state from the sub power source, and the position information storing means Stores the current time indicated by the time measuring means when the disconnection signal or the connection signal is output by the main power supply state detecting means regardless of the power output state from the sub power supply. An earthquake early warning terminal that determines whether or not to output a warning based on the off period regardless of the power output state (for example, realized by the earthquake early warning terminal of the second embodiment). In such an earthquake early warning terminal, it is determined whether or not to display the output of position movement based on the period when the power plug is not connected to the main power supply regardless of the state of power supply from the sub power supply. be able to.

DESCRIPTION OF SYMBOLS 1 Earthquake early warning terminal 2 Main power supply 3 Position information storage means 4 Main power supply state detection means 5 Timing means 6 Warning judgment means 7 Output means 10 Emergency earthquake early warning terminal 11 Main power supply circuit 12 Main power supply detection part 13 Sub power supply battery 14 Diode 15 Main circuit 16 Key input interface 17 Microcomputer 18 Battery 19 Non-volatile memory 20 Display device 21 Clock circuit 30 AC main power supply

Claims (6)

An emergency earthquake warning terminal equipped with location information storage means for storing location information,
Main power supply state detection means for detecting the state of power supply from the main power supply to the earthquake early warning terminal,
A time measuring means having a time measuring function;
Warning determination means for determining whether or not to output a warning;
Output means for outputting a warning,
The main power supply state detection means outputs a disconnection signal upon detecting a drop in the power supply voltage created based on the power supplied from the main power supply to the earthquake early warning terminal, from the state where the power supply voltage is lowered When a rise is detected, a connection signal is output,
The position information storage means stores a current time indicated by the time measuring means when a disconnection signal or a connection signal is output by the main power supply state detection means,
The warning determination means warns based on an off period that is a time between the time when the connection signal stored in the position information storage means is output and the time when the disconnection signal immediately before the connection signal is output. To determine whether to output
The emergency earthquake warning terminal characterized in that the output means outputs a warning according to a determination result of the warning determination means. The emergency earthquake warning terminal according to claim 1, wherein the warning determination means determines that a warning is output when the off-period is equal to or longer than a predetermined warning output determination time. The emergency earthquake warning terminal according to claim 1 or 2, wherein the warning determination means calculates an off period and determines whether or not to output a warning when a connection signal is output by the main power supply detection unit. Equipped with a sub power supply that can supply power to the Earthquake Early Warning terminal,
The main power supply state detection means outputs a disconnection signal or a connection signal regardless of the state of the power supply output from the sub power supply,
The position information storage means stores the current time indicated by the time measuring means when a disconnection signal or a connection signal is output by the main power supply state detection means regardless of the state of the power output from the sub power supply,
The warning determination unit determines whether or not to output a warning based on an off period regardless of the state of the power output from the sub power supply. Earthquake early warning terminal. A location movement warning method in an earthquake early warning terminal that stores location information,
When a drop in power supply voltage created based on the power supplied from the main power supply to the earthquake early warning terminal is detected, a disconnection signal is output, and when an increase from a state where the power supply voltage is low is detected, a connection signal is output. And
Store the current time when the disconnect signal or the connection signal is output,
Determine whether to output a warning based on an off period, which is the time between the time when the connection signal is output and the time when the disconnection signal immediately before the connection signal is output,
A position movement warning method characterized by outputting a warning according to the judgment result. The position movement warning method according to claim 5, wherein it is determined that a warning is output when the off period is equal to or longer than a predetermined warning output determination time.

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