CN101318075B - Health game machine and using method thereof - Google Patents

Abstract

A healthcare gaming machine comprising: a housing adapted to be placed on a platform or held by a hand; at least one airway tube disposed within the housing; an air inlet/outlet unit for the user to inhale and blow air, which is communicated with the ventilation duct; a measuring/executing unit disposed in the housing for measuring lung functions and executing a game; at least one sensing element connected with the ventilation catheter and the measurement/execution unit and used for sensing the gas inlet and outlet amount; a display unit connected with the measurement/execution unit; and a key unit connected with the measurement/execution unit for the user to select the function of the game machine, set the game mode and operate the game; the sensing element generates sensing change by utilizing the flow of the gas in the ventilation catheter, the sensing change of the sensing element is analyzed by the measuring/executing unit, then the analysis result is converted into the measuring data of the lung function or the analysis result is utilized as game data for playing the game, and the measuring data and the game picture are displayed by the display unit. The invention also discloses a use method of the health care game machine.

Description

Health care game machine and method of use thereof

technical field

The invention relates to a health-care game machine and its use method, in particular to a health-care game machine and its use method which use sensors to measure lung function and use games to train the lungs.

technical background

With the development of the information industry and the needs of people's consumption and entertainment, game-related products are developing more and more vigorously. Among them, personalized game consoles are widely loved by people of all walks of life, such as XBOX, PS, etc., and the operation methods are also gradually exquisite. Humanize. Generally, the traditional operation method uses the buttons to react or act on the target according to the setting of the game plot, and enjoy the fun during the game. However, during the game, the user will mostly be fixed in a posture Then mainly operate with the hands, often playing for too long, it will cause some damage to the body function, so people have to ignore the existence of this problem.

In addition, medical care has become a topic of concern to everyone in recent years, especially various physical and mental disease tests have gradually attracted people's attention. Consumer electronic medical or health care products are becoming more and more popular, because they are easy to carry and easy to operate, and are suitable for individuals. Or home use, and not limited by time or place, let users know their current physical condition, and then achieve the purpose of preventive health care.

The judgment of the physiological function of the lungs is mainly based on the data values of various lung function tests, and the lung function test machine is a type used by many people. The data include: maximum forced expiratory vital capacity, volume in the first second of forced exhalation, and The total forced expiratory volume, etc., can be used to understand the individual's lung function status through the generated test data, or it can be further used as a basis for diagnosis and treatment by doctors. For patients with asthma, a lung function tester can also be used to check whether their breathing is normal, so as to prevent the sudden occurrence of symptoms.

Some lung function testing machines are used for lung training, mainly to prevent the complications of pulmonary insufficiency after surgery. It uses the usual deep breathing method under natural conditions, and observes the air flow each time, and breathes repeatedly. A period of time to simulate or recreate a healthy lung pressure or inspiratory volume. However, because each breathing training can only be done simply for numerical observation, and the time of each breathing training needs to be fixed to achieve the expected effect, there may be inaccurate breathing during the process, or the user may lose patience The situation makes the training time longer or fails to achieve the expected effect, and loses the meaning of training. Existing lung function tests include float-type and fan-type lung function test machines. Among them, the floating ball testing machine is based on the principle that a light-weight ball is floated by wind force. When the ball is placed in a limited space, the ball is forced to float due to blowing air, and then the change of the floating ball is recorded, and then converted to obtain the lung capacity. related values. However, since the floating ball testing machine operates in the form of a mechanism, and the uneven force on the ball will cause irregular floating, under the consideration of accuracy, the required structural accuracy and the cost will also be affected. Relatively improved, so the data measured by the float tester is mainly used for reference.

Another fan-type pulmonary function testing machine uses the mechanism configuration of the light sensing element and the fan blade. When the air is blown in by the blowing pipe mechanism, the fan blade rotates due to the force of the blowing air, so that the gap between the blades is the same as that of the fan blade. The blades pass by the sensing point of the light sensor in turn, so that the light sensor senses the number of high and low potentials. This potential is transmitted to the microprocessor through the electronic circuit. The microprocessor performs data analysis and comparison, and then blows according to the built-in value. Qi level, converted into various reference data of vital capacity. However, due to the complex structure of this testing machine, it will be more difficult to disassemble and clean up, and the cost will be higher, so the price and convenience of use of the fan testing machine are not satisfactory.

To sum up, how to accurately measure lung function at low cost and increase the efficiency of lung training in an attractive way is the problem to be solved by the present invention.

Contents of the invention

The object of the present invention is to provide a health care game machine and its usage method, which allows users to measure their own lung function and do lung training in a game mode.

To achieve the above-mentioned purpose, the healthcare game machine of the present invention includes: a housing suitable for being placed on a platform or held by hand; at least one ventilation duct arranged in the housing; an air intake/exit unit for users to inhale and blow air , which communicates with the ventilation catheter; the measurement/execution unit arranged in the housing is used for measuring lung function and performing games; at least one sensing element is connected with the ventilation catheter and the measurement/execution unit for sensing Measuring the amount of gas in and out; the display unit connected with the measurement/execution unit; and the button unit connected with the measurement/execution unit, for the user to select the function of the game machine, set the game mode, and operate the game; wherein The sensing element uses the flow of gas in the ventilation catheter to generate induction changes, and the measurement/execution unit analyzes the induction changes of the sensing element, and then converts the analysis results into lung function measurement data or uses the analysis results as a The game data of the game, the measurement data and the game screen are displayed via the display unit. The gaming machine may also include a hand pressure device, which may be used for game play and hand movement.

The invention also discloses a method of using the health-care game machine, the steps of which include: the user selects the lung function measurement function or the lung training function; Sensing the in-out amount of gas; the measurement/execution unit analyzes the in-out amount; when the user selects the training function, the measurement/execution unit applies the analysis result to the game data and displays the game screen by the display unit; and when the user When the lung function measurement function is selected, the measurement/execution unit converts the analysis result into measurement data of lung function and displays it on the display unit.

According to the health care game machine and its use method of the present invention, it is a game machine that can accurately measure lung function and can be operated by breathing, and can be used with peripheral equipment, so that users can not only understand their own lung function status, but also Through the reaction or action of the game plot, perform breathing actions to increase or restore the lung pressure or inspiratory volume of the lungs, or use the hand operation method of holding the pressure device to perform palm muscle massage health care, in the original single In terms of operation and use, different game control modes are added, and in conjunction with changes in game content, users can not only experience the fun of the game, but also further meet their physical health needs.

Description of drawings

Fig. 1 is the main structural block diagram of health care game machine of the present invention.

Fig. 2 is an exploded view of the healthcare game machine of the preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a healthcare game machine in a preferred embodiment of the present invention.

Fig. 4 is a front view of a healthcare game machine in another preferred embodiment of the present invention.

Fig. 5 is a flow chart of the method of using the healthcare game machine of the present invention.

Fig. 6 is a schematic block diagram of the game action mode of the present invention.

Fig. 7 is a schematic diagram of the flow mechanism of the present invention.

Fig. 8A is a schematic diagram of the internal connection of the suction mechanism of the health care game machine according to the preferred embodiment of the present invention.

Fig. 8B is a schematic diagram of the internal connection of the grip pressure mechanism of the health care game machine according to the preferred embodiment of the present invention.

Detailed ways

The health care game machine and its usage method according to preferred embodiments of the present invention will be described below with reference to the relevant drawings, wherein the same elements will be described with the same reference symbols.

The main structure of the health care game machine of the present invention comprises as shown in Figure 1: air inlet and outlet mechanism 12, the sensing element 13 that is connected with this inlet and outlet mechanism 12, the measurement/execution unit 14 that is connected with this sensing element 13, and the The display unit 15 connected to the measurement/execution unit 14 and the key unit 16 connected to the measurement/execution unit 14 . This air inlet and outlet mechanism 12 is made up of air intake/air outlet unit (not shown in Figure 1) and at least one ventilation duct (not shown in Figure 1), and this air inlet/outlet unit is used for user's inhalation and blowing, The gas inhaled/blown by the user reaches the sensing element 13 through the ventilation tube. The sensing element 13 is used to sense the amount of inhaled or inhaled gas or other gas inhaled by the user, and uses the flow of gas to generate a sensing change, and sends the change to the measuring/executing unit 14 . The measurement/execution unit 14 is used to measure lung function and execute games. It analyzes the sensing changes of the sensing element 13, and then converts the analysis results into measurement data of lung function according to the game machine function selected by the user, or uses The analysis result is used as game data for playing the game. The display unit 15 is used to display measurement data and game screens. The button unit 16 is for the user to select the function of the healthcare game machine, set the game mode, and control and operate the game. The health-care game machine of the present invention may also include a hand-held pressure device 18 connected with the air duct of the air inlet and outlet mechanism 12, which is a hollow compressible container for game operation and hand movement.

According to the preferred embodiment of the health care game machine of the present invention, it includes the following features: (1) the air inlet/outlet unit of the air inlet and outlet mechanism 12 is a movable and detachable conduit, and this structure can be conveniently retracted and cleaned; (2) The sensing element 13 is installed in the ventilation duct of the air inlet and outlet mechanism 12, and its element sensing point is located in front of the inlet/outlet unit duct outlet, facing the central point of the duct outlet. By this design, it can be Ensure that the gas flowing through the duct of the air inlet/outlet unit will directly advance to the sensing point, causing the sensing element 13 to undergo a deformation change, and the sensing element 13 will convert this deformation into a potential change, and then pass through the measurement/execution unit 14 Perform potential signal processing, and accurately calculate various data of lung function. The signal value received by the measurement/execution unit 14 is changed from an external physical change to a potential signal that can change with the sensing element 13 . After the potential signal is amplified and filtered, the measurement/execution unit 14 further performs analog/digital conversion on it, from the original analog signal to a digital signal, and then obtains various set readout values from the digital signal, for example: The maximum value, the total value, etc., and finally the resulting readout value will be displayed via the display unit 15 . From the displayed results, it can be seen that the change value sensed by the sensing element 13 is converted into an action value in the game, such as forward, backward, left and right, chasing, running and jumping, etc. by the change of the digital signal.

In the part of using the game function, this preferred embodiment includes: the game content and the picture are displayed by the display unit 15, and the rhythm of the game picture content can be changed through the game setting, and the air inlet and outlet mechanism 12 is used to carry out the operation of the game character , making the breathing method a cyclical operation.

According to the preferred embodiment of the health care game machine of the present invention, the principle utilization of the gas flow conversion into the potential signal: (1) the relationship between the flow Q and the pressure P (Bernoulli equation); (2) the pressure P and the active force F (F = PA, A = cross-sectional area); (3) the relationship between the force F and the potential signal, so as to obtain the relationship between the flow and the potential. Among them, in order to increase the stability of the combined structure of the air inlet and outlet mechanism and the sensor element, and limit the flow space of the gas, as shown in Figure 7, the conduit 71 and the sensor element 72 of the air inlet/outlet unit are all arranged in the ventilation conduit 73 , wherein, the conduit 71 is detachably arranged in the ventilation conduit 73 , and the sensing element 72 is fixedly arranged in the ventilation conduit 73 . The conduit 71 of this air intake/exit unit has tapered air outlet 74, and air-flow enters by the conduit 71 of air intake/exit unit, before the tapered air outlet 74, because the pipeline outlet becomes smaller, the outlet gas flow rate therefore becomes faster, and flows out The gas will directly advance to the sensing unit 72 and then be discharged through the gas outlets on both sides of the ventilation duct 73 .

Please refer to Fig. 2, the health care game machine 2 of the preferred embodiment of the present invention includes: a mechanism body 21 that is convenient to hold, which is formed by an upper casing 21a provided with a catheter outer groove 32 and a lower base 21b that can be placed on a tabletop. Composition; detachable blowing device 22; detachable air suction device 23; buttons 24 and direction keys 25 arranged on the upper casing 21a; electronic circuit PCB board 26 arranged in the mechanism body 21; A TV 27 connected to the circuit PCB board 26 ; and a pair of air bag-type hollow sphere handles 28 , which are connected to the mechanism body 21 via a bendable conduit 29 .

The air blowing device 22 and the air suction device 23 constitute the above-mentioned air intake/exit unit. As shown in FIG. 3 , the air blowing device 22 is a detachable air blowing conduit 31 with a tapered air outlet 31 a. The blowing mechanism is formed by inserting the air outlet 31a of the air blowing device 22 into the conduit outer groove 32 that can fix it, wherein the gas is discharged through the air outlet 31a, and flows through the elastic sensing element 33 of the induction air flow, which senses The measuring point is directly opposite to the central point of the gas outlet, and then the gas is guided and discharged by the airflow channel 34 (referring to FIG. 2 ). As compared with the schematic diagram of the flow mechanism in FIG. 7 , the function of the conduit outer groove 32 is equivalent to the ventilation conduit 73 , and the insufflation conduit 31 is equivalent to the conduit 71 . The suction device 23 is composed of a gradually expanding air outlet 35 and a bendable conduit 36 . As shown in Figure 8A, the air suction mechanism is formed by connecting the duct 36 of the suction device with the suction hole 39 provided on the upper casing 21a, so as to communicate with the ventilation duct 82 provided in the mechanism body 21 , wherein the gas will form a traction force in the conduit 36 and the ventilation conduit 82, and be sensed by the sensing element 83 arranged in the ventilation conduit.

The pair of hollow sphere grips 28 and the bendable conduit 29 constitute the above-mentioned hand-held pressure device 18, wherein the conduit 29 is connected to the respective air holes 38 on the left and right sides of the mechanism body 21, as shown in Figure 8B, the air holes 38 are used to To connect the air duct 86 arranged in the mechanism body 21, and the other end of the duct 29 is connected to the hollow sphere handle 28, so that the force exerted by the hand is transmitted to the mechanism body 21, and through being connected with the air duct 86 The sensing element 87 senses gas flow. The surface of the sphere handle 28 has a plurality of circular convex points, which are evenly distributed on the position held by the palm.

The electronic circuit PCB board 26 is the above-mentioned measurement/execution unit 14, which has analog signal processing functions such as amplification, filtering, voltage stabilization, and step-down, digital processing functions of the microprocessor, and can be used for analog/digital conversion, timing, storage, Functions such as game drive, RF or external connection. The electronic circuit PCB board 26 is also provided with a transmission port 37 that can be connected to the outside, including a computer transmission connection slot 37a and a TV transmission connection slot 37b, which can be used as data or game transmission, and an audio connector 37c that can be connected to an external speaker.

The button 24 and the direction key 25, that is, the above-mentioned key unit 16, are respectively arranged on the left and right sides of the upper casing 21a, and are used for item and function selection or game operation. The TV 27 is the above-mentioned display unit 15, which is used for the user to read the relevant data of the lung function, or to display the screen of the game. According to another preferred embodiment, the healthcare game machine 4 of the present invention can also include a display screen 42 arranged on the surface of the upper casing as shown in FIG. 4 .

Next, the function content and usage method of the healthcare game machine of the present invention will be described with reference to the flowchart of FIG. 5 . After the game machine is turned on, it enters the game training or breath measurement selection item (step S510), and the user can use the button unit 16 to select to enter the air blow measurement function (step S520) or enter the game content function (step S530). In the blowing measurement item, the user or the game machine sets the measurement function according to the user's situation (step S521), such as: time setting, storage setting, personal data setting, etc., and then the user uses the air intake/exit The unit blows and sucks air, and the game machine starts to measure the airflow in and out (step S522). After the measurement, the display unit 15 displays the measurement result (step S523). If the game content item is selected, the user or the game machine then sets the breathing function of the game (step S531), such as: inspiratory time, blowing time, breathing interval time, etc., and then sets the game function according to the user's interest (step S532 ), such as plot, sound, light source, etc., then the game machine starts to execute the game, and the user utilizes the air intake/outlet unit 12, the key unit 16, or additionally adds the hand pressure device 18 to play the game (step S533). When the game ends or comes to an end, the display unit 15 also displays the game result (step S534). After the selected game machine function is executed, the user can reselect the game machine function or shut down (step S540). If the user selects the measurement function of the game machine, the game machine returns to step S520, and if the user selects the game function , the game machine returns to step S530.

During the blowing measurement function, the user blows forcefully on the blowing conduit 31, and the pressure generated before the tapered air outlet 31a increases the outflow speed of the gas, so that the gas flows out and directly advances to the elastic sensing element 33. sensing point. The elastic sensing element 33 produces elastic changes along with the size of the air flow, and the electronic circuit PCB board 26 detects and converts the change value and calculates and processes it to generate the user's blowing data, which is displayed through the TV 27. It can be displayed via computer transmission connection slot 37a or other display transmission connection slots (not shown) respectively connected to a computer or other display, and if the game machine is provided with a display screen 42, it can also be displayed.

During the game function, its game action mode is as shown in Figure 6. After the game starts (step S533), the game content 61 begins to be executed, and is respectively connected to the computer via the computer transmission port connection slot 37a or the TV transmission port connection slot 37b. , TV or other monitors to display the game screen 62, and then perform the actions required by the game display content, such as: forward, backward, left and right, chasing, running and jumping, etc., with the blowing function 66, suction function 67, hand holding function 68 and buttons Features 69 to play. Among them, after the blowing function 66, the suction function 67, and the hand-held function 68 are converted into potential signals by sensing conversion 63, they are then subjected to analog processing 64, such as filtering, amplification, etc., and digital processing 65, such as analog/digital Conversion, high and low conversion, etc., plus the button function 69 that requires digital processing 65, the combination of which will generate the actions of the characters in the game, and send them to the monitor for game screen display 62.

Wherein the blowing function 66 is blown into by the blowing duct 31, flows out through the tapered air outlet 31a and advances to the elastic sensing element 33, and then is guided by the airflow guide groove 34 to be discharged, and the elastic sensing element 33 is due to The changes caused by the gas flow are processed through the PCB board 26 in analog and digital manner as described above. The suction function 67 sucks air from the top of the gradually expanding air outlet 35, so that traction is generated in the air outlet, which is transmitted to the suction hole 39 by the bendable conduit 36, and then enters the inside, and is connected to the elastic sensing element of the PCB board 26 83 detects, and then generates an induction change, and then the induction change is subjected to analog and digital processing by the PCB board 26 as described above. The grip function 68 is generated by pressing the hollow sphere grip 28 with the hand. After being conducted by the conduit 29, it enters the interior through the air hole 38 and is detected by the elastic sensing element 87 connected to the PCB board 26, thereby generating an induction change. The induced changes are then processed by the PCB board 26 in both analog and digital ways.

For example, if a game is designed to control a person's running through air flow, the airflow size indicates the speed of running, while inhaling means running to the right, blowing air means running to the left, and the unilateral distance that can be run each time The time is set to 5 seconds, and when the time is up, you must force the other side to run, otherwise the game training is over, just like this design, let the user cooperate with breathing, such as setting the user to inhale for 5 seconds, Blow for a 5-second cycle of action. In addition, it can be designed that stones will appear from time to time during the running process. At this time, the strength of the hand must be used to control the jumping of the character, and the game is played in this mode, and the game result is generated at the end (step S534), which can be used. In addition to playing games, players can also do breathing and hand-holding exercises, making it not only interesting, but also has the function of breathing exercises.

According to a preferred embodiment of the health care game machine of the present invention, the sensing element 13 can be an elastic force or a piezoelectric sensing element, which has an elastic induction structure, such as: shrapnel, soft colloid, spring, and piezoelectric body; measurement/ The execution unit 14 includes an electronic circuit, a processor, and game content, which can be a PCB board or a combined component that can perform the functions of the above components; the display unit 15 can be a computer, a TV, a display screen, or can display text, animation, graphics, or The acousto-optic object can be wirelessly connected with the measurement/execution unit 14 . The suction device and the blowing device of the air inlet/outlet unit can be ear-hook or head-mounted wearing mechanisms for the convenience of users. The suction hole 39 part of the suction mechanism, in addition to the previously configured suction device 23, can also be removed, and a long conduit can be installed to connect other suction devices, such as: ear-hook type, head-mounted Wait for the wearing agency. The inhalation device 23 can also be connected with other gas generating devices at the same time, and cooperate with the intake of other gases to allow the user to inhale together when doing inhalation control, while other gases can be oxygen produced by an oxygen machine or produced by an aroma machine. Manufactured harmless fragrances, etc.

The above description is only exemplary, not restrictive. Any person skilled in the art with common knowledge can make equivalent modifications according to the above-mentioned embodiments of the present invention without departing from its spirit and scope. Therefore, any equivalent modification or change made without departing from the spirit and scope of the present invention shall be included in the scope of the appended claims.

Claims (22)

1. A health care game machine, used for measuring lung function and utilizing game mode to carry out lung training, said game machine comprising: The shape is suitable for placing on the platform or a case that is convenient to hold; at least one ventilation conduit connected to the interior of the housing; an air inlet/outlet unit, communicated with the ventilation duct and used for the user to inhale and blow air; A measurement/execution unit disposed within the housing for measuring lung function and performing games; at least one sensing element, connected to the ventilation conduit and the measurement/execution unit, for sensing the inflow and outflow of gas; a display unit connected to the measurement/execution unit; and A button unit connected to the measurement/execution unit, for the user to select the function of the game machine, set the game mode, and control and operate the game; Wherein, the sensing element utilizes the gas flow in the ventilation catheter to generate induction changes, and the measurement/execution unit analyzes the induction changes of the sensing elements, and then converts the analysis results into measurement data of lung function Alternatively, the analysis result may be used as game data for playing the game, and the measurement data and the game screen may be displayed via the display unit. 2. The healthcare game machine according to claim 1, wherein the measurement data of lung function refers to the maximum volume of forced air blowing, the volume of forced air blowing in the first second, or the total volume of forced air blowing. 3. The health care game machine as claimed in claim 1, wherein said air intake/air outlet unit comprises: The gas blowing device, whose mechanism is a tapered gas outlet, generates a rapid flow of gas by means of gas pressure formation. 4. The healthcare game machine as claimed in claim 1, wherein said air intake/air outlet unit comprises: An inhalation device composed of a gradually expanding air outlet and a bendable duct. 5. The health care game machine as claimed in claim 1, 3, or 4, wherein the air inlet/outlet unit is a detachable combination. 6. The health care game machine as claimed in claim 5, wherein the air intake/exit unit can be matched with the intake of other gas flows. 7. The healthcare game machine as claimed in claim 5, wherein the wearing method of the air inlet/outlet unit can be an ear-hook type or a head-mounted type. 8. The recreational game machine of claim 1, wherein the sensing element is disposed within the ventilation conduit. 9. The healthcare game machine according to claim 1, wherein the sensing element is an elastic or piezoelectric sensing element, and has an elastic sensing structure. 10. The healthcare game machine as claimed in claim 9, wherein the sensing element is a shrapnel, a soft gel, or a piezoelectric body. 11. The healthcare game machine according to claim 1, wherein the display unit and the measurement/execution unit are connected in a wireless manner. 12. The healthcare game machine according to claim 1, wherein the display unit is a device capable of displaying text, animation, graphics, or sound and light. 13. The healthcare game machine as claimed in claim 12, wherein the device capable of displaying text, animation, graphics, or sound and light is a display screen. 14. The healthcare game machine as claimed in claim 13, wherein the display screen is a computer or a television. 15. The healthcare game machine as claimed in claim 1, wherein setting the game mode refers to setting the data of gas in and out as game data, which is used to operate the character reaction in the game. 16. The healthcare game machine of claim 1, further comprising: The hand-held pressure device communicated with the air duct is a hollow compressible container used for game operation and hand movement. 17. The health care game machine as claimed in claim 16, wherein the grip part of the grip pressure device is a surface with evenly distributed round bumps, which can be in contact with the palm of the hand and provide a massage function. 18. A method for using a health care game machine, the health care game machine can measure lung function and perform lung training in a game mode, the health care game machine includes: an air intake/exit unit, a measurement/execution unit, at least one sensor Sensitive element, and display unit, described using method comprises: The user selects the measurement function or the training function; the user blows and inhales with the air intake/outlet unit; The sensing element senses the inflow and outflow of gas; the measurement/execution unit analyzes the in-out volume; When the user selects a training function, the measurement/execution unit applies the analysis result to game data and displays a game screen by the display unit; and When the user selects a pulmonary function measurement function, the measurement/execution unit converts the analysis result into pulmonary function measurement data and displays it on the display unit. 19. The method of using the healthcare game machine according to claim 18, further comprising: After selecting the training function, the user sets the game mode. 20. The method of using the health care game machine as claimed in claim 19, wherein setting the game mode is setting the data of gas in and out as game data, which is used to operate the reaction of the characters in the game. 21. The method of using a health care game machine as claimed in claim 18, wherein said measurement data refers to the maximum volume of forced air blowing, the volume of forced air blowing in the first second, or the total volume of forced air blowing. 22. The method of using the health care game machine as claimed in claim 18, wherein the sensing element utilizes the flow of gas to generate an inductive change.

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