TWI804098B - Activity sensing mat, wheelchair and activity monitoring system - Google Patents

Abstract

The invention discloses an activity sensing mat, a wheelchair and an activity monitoring system. The activity sensing mat includes a plurality of load cells and processing modules. The processing module executes the detection procedure every first predetermined time interval, and executes the activity statistics procedure every second predetermined time interval. In the detection procedure, the processing module uses the measurement data of the load cell to calculate the current pressure center. If it is determined that the difference between the current pressure center and the recorded pressure center is greater than the predetermined center difference, the number of activities and the recorded pressure center are updated. In the activity statistics program, the processing module will use the current number of activities to calculate the percentage value of the activity volume, and reset the number of activities to zero, and the processing module can transmit the percentage value of the activity volume to an external electronic device.

Description

Activity Sensing Mats, Wheelchairs and Activity Monitoring Systems

The present invention relates to an activity sensing mat, a wheelchair and an activity monitoring system, in particular to an activity sensing mat capable of sensing the activity state of a user sitting on the activity sensing mat and a wheelchair including the activity sensing mat, and an activity monitoring system. system.

The activity status of existing wheelchair users on the wheelchair cannot be remotely monitored or recorded in real time, and relatives or relevant medical staff cannot know the recent activity status of the wheelchair user on the wheelchair.

The invention discloses an activity sensing pad, a wheelchair and an activity monitoring system, which are mainly used to improve the existing wheelchair user's activity status on the wheelchair, which cannot be remotely monitored or recorded in real time, and related relatives or related medical staff The problem that personnel cannot be informed of the wheelchair user's recent activity status in the wheelchair.

One embodiment of the present invention discloses an activity sensing pad, which includes: a cushion body, a top plate, at least four load units, a bottom plate, a processing module and a protective cover. There is a groove on one side of the cushion body; the top plate is set in the groove; four load units are set on the top plate, and the four load units are set adjacent to the four corners of the top plate, and each load unit can generate a corresponding amount when it is pressed. The bottom plate is set in the groove, and the top plate of the bottom plate is set on one side of four load cells; the processing module is electrically connected to the four load cells, and the processing module executes a detection every interval of a first predetermined time program, and at intervals of a second predetermined time, an activity counting program is executed; wherein, The second predetermined time is at least 10 times the first predetermined time; the protective cover is set on the periphery of the cushion body to cover the cushion body and the processing module; wherein, when the processing module executes the detection program, it will perform the following steps: 1. Calculation Step: calculate a current body weight or a current pressure center by using the four measurement data currently transmitted by the four load cells; a judging step: judge the difference between the current body weight and the recorded body weight recorded during the previous execution of the detection procedure Whether the difference exceeds a predetermined weight difference, or whether the difference between the current pressure center and a recorded pressure center recorded when performing the detection procedure last time exceeds a predetermined center difference; if the difference between the current weight and the recorded weight is determined If the difference exceeds the predetermined weight difference, or if it is determined that the difference between the current pressure center and the recorded pressure center exceeds the predetermined center difference, then it is determined that the user currently on the cushion body is active, and the following steps are performed: 1. Update step: update 1. The number of activities to accumulate the number of activities; 1. Recording step: store the current body weight as a new record weight, or store the current pressure center as a new record pressure center; if it is determined that the difference between the current weight and the recorded body weight is not Exceeding the preset weight difference, or judging that the difference between the current pressure center and the recorded pressure center does not exceed the preset center difference, the update step is not performed, and only the recording step is performed; wherein, when the processing module executes the activity count program, it will Perform the following steps: obtain the current number of activities; calculate a percentage value of the activity volume, the percentage value of the activity volume is the current number of activities/(second scheduled time/first scheduled time)*100%; make the number of activities zero; wherein The processing module can transmit the activity percentage value to an external electronic device after each execution of the activity counting program.

One embodiment of the present invention discloses a wheelchair, which includes a frame, at least two wheels and the activity sensing pad of the present invention, the two wheels are pivotally connected to the vehicle frame, and the activity sensing pad is arranged on the frame.

One embodiment of the present invention discloses an activity monitoring system, which includes: the activity sensing pad of the present invention, a remote server and a monitoring program; the activity sensing pad also includes a communication unit, the communication The unit is electrically connected to the processing module, and the processing module can pass through the The communication unit and the remote server exchange information; the external electronic device is the remote server, and the remote server can store the activity percentage value transmitted by the activity sensing pad The monitoring program can be executed by an electronic device. When the monitoring program is executed by the electronic device, the monitoring program can control the electronic device to connect to the remote server, so that the remote The server obtains the activity percentage value transmitted by the activity sensing pad, and the monitoring program can control a display of the electronic device to display the activity sensor pad transmitted to the remote server All stated activity percentage values for .

To sum up, the activity sensing mat, wheelchair and activity monitoring system of the present invention allow relevant personnel to instantly know the recent and real-time activity status of the user sitting on the activity sensing mat through an external electronic device.

In order to further understand the characteristics and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention, but these descriptions and drawings are only used to illustrate the present invention, rather than to make any statement on the scope of protection of the present invention. limit.

100: wheelchair

1: Frame

2: wheels

3: Activity Sensing Pad

3A: Event Information

3A1: User Information

30: Protective sleeve

301: Cloth cover body

3011: tank

302: lift cloth

31: Cushion body

311: Groove

33, 33A, 33B, 33C, 33D: load cells

331: Measurement data

32: top plate

34: Bottom plate

35: Processing module

351: Processor

3511: current weight

3512: Activity percentage value

3513: Current pressure center

3514: wrong information

3515: High activity warning information

3516: Low activity warning message

3517: instant weight

3518: Instant Stress Center

3519: error weight

3520: Electric Power Information

352: Storage

3521: Scheduled weight difference

3522: record weight

3523: Number of activities

3524: Record pressure center

3525: Book center difference

3526: preset value

3527: Predetermined high value

3528: Scheduled low value

3529: Return to zero value

3530: margin of error

353: communication unit

36: Positioning module

361: Current location data

37: Feedback module

38: Power supply module

200: Activity Monitoring System

201: Remote server

Z: external electronics

Z1: Setting information

Z2: Return to zero signal

E: electronic device

E1: display

B1: Active record button

B2: Zero correction button

B3: Setting button

SH1: Cushion Usage Record Form

SH2: Activity record form

S11, S12, S13, S14: process steps

S11A, S12A, S13A, S14A: process steps

S21, S22, S23: process steps

S3, S31, S32, S33: process steps

S4, S41, S42: process steps

SX1, SX2: process steps

Fig. 1 is a schematic diagram of the wheelchair of the present invention.

FIG. 2 is a partially exploded schematic view of the activity sensing pad of the present invention.

FIG. 3 is another partially exploded schematic view of the activity sensing pad of the present invention.

FIG. 4 is a schematic block diagram of the activity sensing pad of the present invention.

FIG. 5 is a schematic flow diagram of the detection procedure executed by the processing module of the activity sensing pad of the present invention.

FIG. 6 is a schematic flowchart of another embodiment of the detection program executed by the processing module of the activity sensing pad of the present invention.

FIG. 7 is a schematic flowchart of the activity counting program performed by the processing module of the activity sensing mat of the present invention.

FIG. 8 is a schematic flowchart of an embodiment of an activity counting program performed by the processing module of the activity sensing mat of the present invention.

FIG. 9 is a schematic flowchart of an embodiment of an activity counting program performed by the processing module of the activity sensing pad of the present invention.

FIG. 10 is a schematic flowchart of the acquisition steps performed by the processing module of the activity sensing pad of the present invention.

FIG. 11 is a schematic diagram of the activity monitoring system of the present invention.

12 and 13 are schematic diagrams of the monitoring program of the activity monitoring system of the present invention being executed by the electronic device.

In the following description, if it is pointed out that please refer to the specific drawing or as shown in the specific drawing, it is only used to emphasize in the subsequent description, and most of the relevant content appears in the specific drawing, but not In this ensuing description, reference may be made to only certain drawings.

Please refer to Figures 1 to 4 together, Figure 1 is a schematic diagram of the wheelchair of the present invention, Figure 2 and Figure 3 are different partial exploded schematic diagrams of the activity sensing pad of the present invention, Figure 4 is the activity sensing pad of the present invention block diagram. The wheelchair 100 of the present invention includes a frame 1 , two wheels 2 and a motion sensing pad 3 , the two wheels 2 are pivotally connected to the frame 1 , and the motion sensing pad 3 is arranged on the frame 1 . The shape and form of the vehicle frame 1 are not limited to those shown in the figure; in practical applications, the vehicle frame 1 may be in a collapsible form or a non-collapsible form, which is not limited here. The number of wheels 2 included in the wheelchair 100 is not limited to what is shown in the figure. In practical applications, the wheelchair 100 may be an electric wheelchair or a non-electric wheelchair, which is not limited here.

As shown in FIGS. 2 to 4 , the activity sensing pad 3 includes a protective cover 30 , a cushion body 31 , a top plate 32 , four load cells 33 , a bottom plate 34 and a processing module 35 . The protective cover 30 is used for sheathing on the cushion body 31 . The protective cover 30 can include a cloth cover body 301 and a flip cloth 302, the cloth The cover body 301 has a receptacle 3011, and the lifting cloth 302 is connected with the cloth cover body 301. The peripheral edge of the lifting cloth 302 which is not connected with the cloth cover body 301 may be connected with the cloth cover body 301 through a zipper structure. The container 3011 is used for accommodating the cushion body 31 , the top plate 32 , the four load units 33 , the bottom plate 34 and the processing module 35 .

One side of the cushion body 31 has a groove 311 . The side of the cushion body 31 opposite to the groove 311 is used for providing a seat for the user. The cushion body 31 can be made of materials such as foam, for example. The top plate 32 is disposed in the groove 311 .

Four load cells 33 are disposed on one side of the top plate 32 , and the four load cells 33 are disposed adjacent to four corners of the top plate 32 . Each load cell 33 can generate a measurement data 331 correspondingly when pressed. The bottom plate 34 is disposed in the groove 311 , and the bottom plate 34 is located on a side of the top plate 32 where four load cells 33 are disposed. The top board 32 and the bottom board 34 are made of materials with higher hardness than the cushion body 31 , such as wood boards, plastic boards, carbon fiber boards and the like.

In practical applications, the number of load cells 33 included in the movable sensing pad 3 is not limited to four, and in different embodiments, the movable sensing pad 3 may also include more than four load cells 33 . Of course, the positions of the multiple load units 33 disposed on the top plate 32 may be correspondingly adjusted according to the number of the load units 33 .

The processing module 35 is electrically connected to the four load cells 33 , and the processing module 35 executes a detection program at intervals of a first predetermined time, and executes an activity counting program at intervals of a second predetermined time. The second predetermined time is at least 10 times the first predetermined time. In practical applications, the processing module 35 may include, for example, a processor 351 and a storage 352, the processor 351 is, for example, various microprocessors, the storage 352, for example, may be various memories, etc., and the processor 351 And the storage 352, for example, can be arranged on a circuit board, and the processor 351 is electrically connected to the storage 352, and the processor 351 can read the data in the storage 352, and the processor 351 can store the data in the storage 352 in. The processor 351 can execute the detecting program and the activity counting program.

As shown in Figure 5, when the processing module 35 executes the detection program, the processing module 35 will perform the following steps: a calculation step S11: use the four measurement data 331 currently transmitted by the four load cells to calculate a Current body weight 3511; a judgment step S12: judge whether the difference between the current body weight 3511 and the recorded body weight 3522 recorded when the detection program was performed last time exceeds a predetermined body weight difference 3521; if the difference between the current body weight 3511 and the recorded body weight is determined If the value exceeds the predetermined weight difference, it is determined that the user currently on the cushion body 31 has an activity, and the following steps are performed: an update step S13: update an activity number of times 3523 to accumulate the number of activities 3523; a record step S14: add the current The weight 3511 is stored as a new recorded weight 3522; if it is determined that the difference between the current weight 3511 and the recorded weight 3522 does not exceed the predetermined weight difference 3521, the updating step S13 is not performed, and only the recording step S14 is performed.

In practical applications, the predetermined weight difference 3521 can be, for example, between 3 to 5 millimeters, and the predetermined weight difference 3521 can be changed according to needs, for example, if the activity sensing pad 3 is provided for use by young children , then the predetermined weight difference 3521 can be set to 1~3 kg, preferably, the predetermined weight difference 3521 can be 1 kg; if the activity sensing pad 3 is provided for adult users, the predetermined weight difference can be set to The difference 3521 is set at 3-5 kg, preferably, the predetermined weight difference 3521 may be 3 kg.

In one of the specific embodiments, the processing module 35 can also include a communication unit 353, the communication unit 353 is electrically connected to the processing module 35, and the communication unit 353 can communicate with external electronic devices Z (such as various smart phones, tablet Computer, computer, remote server, etc.) communication connection, and the communication unit 353 can receive a setting information Z1 transmitted by the external electronic device Z; the processing module 35 can change the settings stored in the memory 352 according to the setting information Z1 Predetermined weight difference 3521. that is That is to say, the relevant personnel can adjust the predetermined weight difference 3521 stored in the memory 352 of the activity sensing pad 3 through the external electronic device Z according to the age and weight range of the user who uses the activity sensing pad 3, by Therefore, the processor 351 of the activity sensing mat 3 can more accurately present the amount of activity of the user sitting on the activity sensing mat 3 . In practical applications, the processor 351 and the communication unit 353 may be integrated into one chip, or the processor 351 and the communication unit 353 may be two independent chips, which are not limited here.

As shown in Fig. 3 and Fig. 6, in different embodiments, when the processing module 35 executes the detection program, the processing module 35 will perform the following steps: a calculation step S11A: using four load cells 33A, 33B, Calculate a current pressure center 3513 from the four measurement data 331 currently transmitted by 33C and 33D; a judgment step S12A: judge the difference between the current pressure center 3513 and a recorded pressure center 3524 recorded during the previous detection procedure Whether the value exceeds a predetermined center difference 3525; if it is determined that the difference between the current pressure center 3513 and the recorded pressure center 3524 exceeds the predetermined center difference 3525, then it is determined that the user currently on the cushion body 31 is active, and the following steps are performed: An update step S13A: update an activity number 3523 to accumulate the number of activities 3523; a record step S14A: store the current pressure center 3513 as a new record pressure center 3524; if the difference between the current pressure center 3513 and the recorded pressure center 3524 is determined If the value does not exceed the predetermined central difference value 3525, the updating step S13A is not performed, and only the recording step S14A is performed.

As shown in Figure 3, in practical applications, in the calculation step S11A, for example, the current pressure center 3513 can be calculated by the relational expression of (A+B-C-D)*10/(A+B+C+D). X coordinate, and calculated by the relationship of (B+C-A-D)*10/(A+B+C+D) The Y coordinates of the current pressure center 3513 are displayed, wherein A, B, C, and D are the measured values corresponding to the current pressure of the four load cells 33A, 33B, 33C, and 33D respectively.

In one of the specific embodiments, when the processing module 35 executes the detection program, it records the current pressure center 3513 or the current pressure center 3513 in the storage 352, and when the processing module 35 executes the detection program, it first Read the last recorded body weight 3522 or the last recorded pressure center 3524 in the memory 352 . If the processing module 35 determines that no recorded body weight 3522 or recorded pressure center 3524 is stored in the storage 352, the processing module 35 will directly execute the updating step and the recording step to record the current body weight 3511 or the current pressure center 3513 in the storage. device 352.

In practical applications, in the calculation step, if the current body weight 3511 is lower than a predetermined value 3526, or the current pressure center 3513 cannot be calculated using the four measurement data 331 currently transmitted by the four load cells 33, the processing module The group 35 will no longer execute the judging step, and the processing module 35 will send an error message 3514 to the external electronic device Z. Specifically, when the user leaves the activity sensing mat 3, the current weight 3511 will be lower than the predetermined value 3526, or the processing module 35 will not be able to calculate the current center of pressure 3513, at this time, the processing module 35 Then the error information 3514 can be sent to the external electronic device Z for recording, and the relevant personnel holding the external electronic device Z can know that the user sitting on the activity sensing mat 3 may have left the activity sensing mat 3 . Of course, in practical applications, when the load cell 33 is damaged, the processing module 35 may also determine that the current body weight 3511 is lower than the predetermined value 3526, or the processing module 35 cannot calculate the current pressure center 3513.

In one of the specific applications, the activity sensing pad 3 can also include a positioning module 36, the processing module 35 is electrically connected to the positioning module 36, and before the processing module 35 transmits the error information 3514 to the external electronic device Z, it can be First, the positioning module 36 obtains a current location data 361, and the error message 3514 may include the current location data 361. Specifically, when the processing module 35 sends out the error message 3514, it may be that it is determined that the user is not on the activity sensing pad 3. Therefore, when the error message 3514 is sent out, the processing module 35 can obtain the current coordinates of the activity sensing pad 3 through the positioning module 36, and borrow Therefore, relevant personnel can know which position the wheelchair 100 is through the external electronic device Z, and the situation that the user is not on the activity sensing pad 3 occurs.

As shown in Figure 7, when the processing module 35 executes the activity count program, the processing module 35 will perform the following steps: step S21: obtain the current number of activities 3523; step S22: calculate an activity percentage value 3512, The activity percentage value 3512 is the current number of activities/(second scheduled time/first scheduled time)*100%; step S23: reset the number of activities 3523 to zero; wherein, after the processing module 35 executes the activity statistics program each time , can transmit the activity percentage value 3512 to an external electronic device Z (such as various smart phones, tablet computers, computers, remote servers, etc.).

According to the above, for example, the first predetermined time can be 6 seconds, and the second predetermined time can be 10 minutes, that is, the processing module 35 executes the detection program every 6 seconds, and the processing module 35 executes the detection program every 6 seconds, and the processing module 35 The activity counting program will be executed once every 10 minutes; each time the processing module 35 executes the activity counting program, it will count the accumulated recorded activity times 3523 in the previous 60 detection procedures; assuming that the processing module 35 executes the activity counting procedure When counting the program, the number of times of activity 3523 is 20 times, and the percentage value of activity volume 3512 is 20/(10*60/6)=20%.

As shown in Figure 8, in one of the embodiments, after the processing module 35 executes the activity count program, it can also perform an activity determination step S3: determine whether the activity percentage value 3512 exceeds a predetermined high value 3527; if If it is determined that the activity percentage value 3512 exceeds a predetermined high value 3527, then execute step S31: send a high activity amount warning message 3515 to the external electronic device Z; if it is determined that the active mass percentage value 3512 is lower than a predetermined low value 3528, then execute step S32 : Judgment of activity percentage If the value 3512 is lower than a predetermined low value 3528, execute step S33: send a low activity level warning message 3516 to the external electronic device Z.

Specifically, assuming that the processing module 35 executes an activity counting program every 5 minutes, and the processing module 35 determines that the percentage value 3512 of the activity exceeds a predetermined high value 3527 (for example, exceeding 80%), it may represent a sitting activity sensing The user on the mat 3 may have epilepsy, convulsions, etc. At this time, the processing module 35 can immediately send a high activity level warning message 3515 to the external electronic device Z for related records. In contrast, if the processing module 35 determines that the activity percentage value 3512 is lower than the predetermined low value 3528, it may represent that the user has a sedentary problem on the activity sensing mat 3. At this time, the processing module 35 can issue a low The active mass warning information 3516 is sent to the external electronic device Z for related records. In practical applications, the high activity level warning information 3515 or the low activity level warning information 3516 may be presented on the external electronic device Z in any form, such as a short message.

Same as the above description, in actual application, the processing module 35 can also receive another setting information Z1 transmitted by the external electronic device Z through the communication unit 353, and the processor 351 can change all settings according to the setting information Z1. The predetermined high value 3527 and the predetermined low value 3528, so that relevant personnel can adjust the appropriate predetermined high value 3527 and predetermined low value 3528 through the external electronic device Z according to the needs of users who use the activity sensing pad 3 .

As shown in FIG. 9 , in another embodiment, the activity sensing pad 3 further includes a feedback module 37 , and the processing module 35 is electrically connected to the feedback module 37 . After the processing module 35 executes the activity count program, it will also perform an activity determination step S4: determine whether the activity percentage value 3512 exceeds a predetermined high value 3527; if it is determined that the activity percentage value 3512 exceeds a predetermined high value 3527, then Execute step S41: control the feedback module 37 to actuate; if it is determined that the active mass percentage value 3512 does not exceed the predetermined high value 3527, execute step S42: determine whether the active mass percentage value 3512 is lower than a predetermined low value 3528; if it is determined that the active mass percentage value 3512 is lower than a predetermined low value 3528, then execute step S41. Specifically, The feedback module 37 may include vibration motors, light emitting units, speakers, etc., and the processing module 35 may control the feedback module 37 to perform different actions according to different situations. For example, when the processing module 35 determines the amount of activity When the percentage value 3512 exceeds the predetermined high value 3527, it may be to control the light-emitting unit and the horn to act, thereby prompting the relevant personnel around the user; when the processing module 35 judges that the activity percentage value 3512 is lower than the predetermined low value 3528, the processing module Group 35 can control the actuation of the vibration motor, so as to remind the user of possible sedentary problems.

As shown in Fig. 4 and Fig. 10, in one of the embodiments, the processing module 35 can also perform an obtaining step at intervals of a third predetermined time, and the obtaining step includes: step SX1: receiving the four loading units 33 Transmission of at least four measurement data 331; step SX2: calculate an instant body weight 3517 or an instant pressure center 3518 of the user on the cushion body 31 according to the four measurement data 331; wherein, the processing module 35 executes the detection During the detection program, the processing module 35 calculates the current body weight 3511 or the current pressure center by taking the average of all real-time body weights or the average of all real-time pressure centers during the period from the previous execution of the detection program to the current execution of the detection program. 3513; Wherein, the second predetermined time is at least 10 times the third predetermined time.

For example, the first predetermined time, the second predetermined time and the third predetermined time may be 1 minute, 10 minutes, and 6 seconds respectively, that is, the processing module 35 executes the obtaining step SX every 6 seconds to calculate The real-time body weight 3517 or real-time pressure center 3518 is obtained, and the processing module 35 will execute a detection program every 1 minute to calculate a The current body weight 3511 or a current pressure center 3513 is used to determine whether to update the activity times 3523 , and the processing module 35 executes the activity statistics program every 10 minutes to calculate the activity percentage 3512 according to the activity times 3523 . by getting steps The design of SX can make the final activity percentage value 3512 better present the activity status of the user on the activity sensing pad 3 .

In one of the specific embodiments, the processor 351 can also implement a weight measurement mode. When the processor 351 executes the weighing mode, the processor 351 can first determine whether there is a zero-return value 3529 stored in the memory 352, and if the processor 351 determines that there is a zero-return value 3529 in the memory 352, then control the four loads The unit 33 operates to obtain four measurement data 331 , and uses the four measurement data 331 and the zero-reset value 3529 to calculate a user's body weight. If the processor 351 determines that the zeroing value 3529 is not stored in the memory 352, the processing module 35 will execute a zeroing program, and the processing module 35 will perform the following steps: collect each load unit 33 within a predetermined time interval A plurality of measurement data 331 transmitted successively; use the plurality of measurement data 331 to calculate an error weight, and determine whether the error weight is within an error range 3530; if the processing module determines that the error weight is between Within the error range 3530, the processing module stores the error weight as a zero value; if the processing module determines that the error weight is not within the error range 3530, the processing module sends an error to the external electronic device Z Information.

After the processing module 35 executes the zeroing procedure, when the processing module 35 calculates the current body weight 3511 or the current center of pressure 3513, it is calculated through at least four measurement data 331 transmitted by at least four load cells 33 and the zeroing value .

Specifically, after the processing module 35 executes the zeroing procedure, when calculating the current weight 3511, it first uses four measurement data 331 to calculate a temporary weight, and then subtracts the zeroing value from the temporary weight to obtain current weight. In a preferred embodiment, the error range 3530 is less than the predetermined weight difference 3521 .

In practical applications, the processing module 35 may receive a reset signal Z2 from an external electronic device Z through the communication unit 353. When the processing module 35 receives the reset signal Z2, the processing module 35 will execute the reset procedure. . For example, the external electronic device Z can execute a monitoring program. When the external electronic device Z executes the monitoring program, relevant personnel can operate the external electronic device Z so that the external electronic device Z transmits the reset signal Z2 to the movable sensing pad 3.

For example, when the processing module 35 executes the zeroing program, for example, within 2 minutes (ie, the predetermined time interval), four measurement data 331 are obtained by the four load cells 33 every 5 seconds, and four pieces of measurement data 331 are obtained by using four Each measurement data 331 calculates a weight, and finally, averages all the calculated weights within 2 minutes to obtain the error weight; then, the processing module 35 will judge whether the error weight is between 0~1 kg (ie Error range), if the error weight is greater than 1 kg, it may indicate that there are objects on the movable sensing mat 3, a user is sitting on the movable sensing mat 3, and the load unit 33 is damaged. At this time, the processing module 35 will An error message 3514 is sent to the external electronic device Z to remind the user that the above-mentioned problem may occur on the activity sensing pad 3 .

It should be emphasized that in the prior art, it is relatively difficult to measure the weight of the wheelchair user, because the wheelchair user cannot stand on the weighing scale by himself, so it is difficult to measure the weight of the wheelchair user. For measurement, it is usually necessary to use large-scale measuring equipment (such as equipment such as weighbridges). The cost of such measuring equipment is high, so it is difficult for small medical institutions to afford it; It is necessary to measure the weight of the wheelchair user by supporting him, but this method has the problem of inaccurate measurement; therefore, for general small medical institutions, how to simply measure the wheelchair user Body weight measurement has become a problem that needs to be solved. The above-mentioned activity sensing mat of the present invention can be installed on the wheelchair first, and after the processing module executes the zeroing procedure, the user of the wheelchair only needs to sit on the activity sensing mat to complete the weight measurement Therefore, the activity sensing pad of the present invention can effectively solve this problem.

In summary, the wheelchair 100 and the activity sensing mat 3 of the present invention allow relevant personnel (such as relatives of the user, medical personnel, etc.) to conveniently monitor the activity status of the user sitting on the activity sensing mat 3 , so as to better grasp the user's situation.

It should be noted that the motion sensing pad 3 of the present invention may be manufactured, implemented or sold separately, and the motion sensing pad 3 is not limited to be manufactured, implemented or sold simultaneously with the wheelchair 100 .

Please refer to FIG. 4, FIG. 11 to FIG. 13 together. FIG. 11 is a schematic diagram of the activity monitoring system of the present invention, and FIG. 12 and FIG. 13 are schematic diagrams of the monitoring program of the activity monitoring system of the present invention being executed by an electronic device. The activity monitoring system 200 of the present invention includes: an activity sensing pad 3 , a remote server 201 and a monitoring program. The processing module 35 of the movable sensing pad 3 can exchange information with the remote server 201 through the communication unit 353 .

The remote server referred to in this embodiment may be the external electronic device Z referred to in the above embodiment, and the remote server 201 can store the activity percentage value 3512 transmitted by the activity sensing pad 3 . The monitoring program can be executed by an electronic device E (such as various smart phones, tablet computers, computers, etc.). When the monitoring program is executed by the electronic device E, the monitoring program can control the connection between the electronic device E and the remote server 201 to The activity percentage value 3512 transmitted by the activity sensing pad 3 is obtained from the remote server 201, and the monitoring program can control a display E1 of the electronic device E to present all the data transmitted by the activity sensing pad 3 to the remote server 201. The activity percentage value is 3512.

Of course, in practical applications, the remote server 201 may store activity information 3A delivered by a plurality of different activity sensing pads 3 , and each piece of activity information 3A includes not only activity percentage values 3512 at different times, but also It can contain user data 3A1 (such as name, age, weight, gender, etc.), and when the electronic device E is connected to the remote server 201, it must first pass the identity authentication procedure before it has the right to read the relevant information. Corresponding activity information 3A.

When the relevant personnel use the electronic device E to execute the monitoring program, and the electronic device E obtains a piece of activity information 3A from the remote server 201, the display E1 of the electronic device E may, for example, present user information 3A1 (name, age, weight, Gender) and the real-time activity percentage value 3512, and an activity record button B1 may also be displayed in the display E1, and the user may select the activity record button B1 by operating the electronic device E, so that the display E1 presents The screen shown in Figure 12. In addition, the display E1 can also display a zero reset button B2, and the user can select the zero reset button B2 by operating the electronic device E, so that the electronic device E sends a zero reset signal to the remote server 201, And the remote server 201 will transmit the reset signal to the corresponding movable sensing pad 3 , so that the movable sensing pad 3 performs the zeroing procedure.

As shown in Figure 13, the electronic device E executes the monitoring program, and after being operated by the user, the display E1 may display, for example, a cushion use record form SH1 and an activity record form SH2, and the seat cushion use record form SH1 may be The way of the bar chart shows the use status of the activity sensing pad 3 at different time points. Use (i.e. the current body weight calculated by the processing module 35 is lower than a predetermined value, or the processing module 35 cannot calculate the current center of pressure), offline (i.e. the remote server 201 has not obtained the event information 3A) . The activity recording table SH2 presents the activity percentage value 3512 of the activity sensing pad 3 at different time points.

As shown in Figures 12 and 13, in practical applications, when the electronic device E executes the monitoring program, it can also control the display E1 to display a setting button B3, and the user can select the setting button B3 by operating the electronic device E , so that the electronic device E transmits the setting information to the remote server 201, and the remote server 201 will transmit the setting information to the corresponding activity sensing pad 3, so as to change the activity sensing pad 3's predetermined weight difference 3521 , predetermined center difference 3525 , predetermined high 3527 , said predetermined low 3528 , etc.

As shown in Figure 3, Figure 4, Figure 12 and Figure 13, in practical applications, the movable sensing pad 3 also includes a power supply module 38, the power supply module 38 is electrically connected to the processing module 35, the power supply module The group 38 provides the power required for the operation of the processing module 35 and each load cell 33 . The processing module 35 can generate a power information 3520 according to the current power of the power supply module 38, and transmit it to the remote server 201 (that is, the external electronic device Z), and the remote server 201 transmits it to the electronic device E The activity information 3A may include the power information 3520, and the electronic device E that executes the monitoring program may display the power information 3520 on the display E1 in the form of diagrams, figures, or the like.

To sum up, the activity sensing mat, wheelchair, and activity monitoring system of the present invention can allow relevant personnel to remotely monitor the activity status of the user sitting on the activity sensing mat in real time through an external electronic device. Relevant personnel have a better grasp of the user's activity status. In addition, the activity sensing pad of the present invention can also provide users with weight measurement.

The above descriptions are only preferred feasible embodiments of the present invention, and do not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the scope of protection of the present invention. .

S11A, S12A, S13A, S14A: process steps

Claims (10)

An activity sensing mat comprising: A cushion body with a groove on one side; a top plate, which is arranged in the groove; At least four load units are arranged on the top plate, and the four load units are arranged adjacent to the four corners of the top plate, and each of the load units can generate a corresponding measurement data when compressed; a bottom plate, which is arranged in the groove, and the top plate of the bottom plate is provided with one side of four load cells; A processing module, which is electrically connected to the four load cells, the processing module executes a detection program every interval of a first predetermined time, and executes an activity measurement every interval of a second predetermined time A statistical program; wherein the second predetermined time is at least 10 times the first predetermined time; A protective cover, which is sleeved on the periphery of the cushion body to cover the cushion body and the processing module; Wherein, when the processing module executes the detection program, it will perform the following steps: A calculation step: calculate a current body weight or a current pressure center by using the four measurement data currently transmitted by the four load cells; A judging step: judging whether the difference between the current body weight and a recorded body weight recorded during the previous execution of the detection procedure exceeds a predetermined weight difference, or judging the difference between the current pressure center and the previous execution of the Whether the difference between a recorded pressure center recorded during the detection procedure exceeds a predetermined center difference; If it is determined that the difference between the current body weight and the recorded body weight exceeds the predetermined body weight difference, or if it is determined that the difference between the current pressure center and the recorded pressure center exceeds the predetermined center difference, then it is determined that the current The user on the cushion body is active and performs the following steps: An updating step: updating an activity number to accumulate the number of activities; A recording step: storing the current body weight as a new record of body weight, or storing the current pressure center as a new record of pressure center; If it is determined that the difference between the current body weight and the recorded body weight does not exceed the predetermined body weight difference, or if it is determined that the difference between the current pressure center and the recorded pressure center does not exceed the predetermined center difference, then Not performing said updating step, only performing said recording step; Wherein, when the processing module executes the activity count program, it will perform the following steps: Obtain the current number of said activities; Calculate an activity percentage value, the activity percentage value is the current number of activities/(second predetermined time/first predetermined time)*100%; Zero the number of said activities; Wherein, the processing module can transmit the activity percentage value to an external electronic device after each execution of the activity counting program. The activity sensing pad as claimed in item 1, wherein the processing module includes a processor and a storage, the processor is electrically connected to the storage, and the processor is used to perform the detection program and the activity counting program; the processor can store the percentage value of the activity in the memory; when the processor executes the recording step, a new recorded body weight is stored in the memory or store a new record of the pressure center in the memory; when the processor executes the detection program, it first reads the record last recorded in the memory Body weight or the last recorded pressure center, if the processor determines that no one of the recorded body weight or the recorded pressure center is stored in the memory, the processor will directly execute the updating step and the recording step, to store the current body weight or the current pressure center in the storage as a new recorded body weight or a new recorded pressure center; wherein, the predetermined weight difference is between 1-5 kg, the predetermined center difference is between 1-10 mm; the processing module also includes a communication unit, the communication unit is electrically connected to the processor, and the communication unit can communicate with the The external electronic device is connected by communication, and the communication unit can receive a setting information transmitted by the external electronic device, and the processor can change the predetermined weight difference or the predetermined center difference according to the setting information . The activity sensing mat according to claim 2, wherein the processor can execute a weight measurement mode, and when the processor executes the weight measurement mode, the processing module will first determine the Whether to store a zero-return value; if the processor determines that the zero-return value is stored in the memory, four pieces of the measurement data are obtained from the four load cells to use the measurement data and the zeroing value, calculate a user’s body weight; if the processor determines that the zeroing value is not stored in the memory, the processor will execute a zeroing program, which includes the following steps : Collecting a plurality of the measurement data transmitted successively by each of the load cells within a predetermined time interval; Calculate an error weight by using a plurality of the measurement data, and judge whether the error weight is within an error range; if the processor determines that the error weight is within the error range, the processing The device stores the error weight as the zero value; if the processor determines that the error weight is not within the error range, the processor sends an error message to the external electronic device; Wherein, the processing module can receive a reset signal transmitted by the external electronic device, and when the processing module receives the reset signal, the processing module will execute the reset procedure. The activity sensing mat according to claim 1, wherein the processing module executes an obtaining step at intervals of a third predetermined time, and the obtaining step includes: receiving at least four measurement data transmitted by the four load cells; Calculate a real-time body weight or a real-time center of pressure based on the four measurement data; Wherein, when the processing module executes the detection program, the processing module averages all the instant body weights from the previous execution of the detection program to the current execution of the detection program. Or all the instant pressure centers are averaged to calculate the current body weight or the current pressure center; wherein, the second predetermined time is at least 10 times the third predetermined time. The activity sensing mat according to claim 1, wherein, after the processing module executes the activity counting program, it will also perform an activity determination step: determine whether the activity percentage value exceeds a predetermined high value; if it is determined that the activity percentage value exceeds the predetermined high value, a high activity warning message will be sent to the external electronic device; if it is determined that the activity percentage value is lower than a predetermined low value, then the The external electronic device transmits a warning message of low activity level. The activity sensing pad as claimed in item 1, wherein the activity sensing pad further includes a feedback module, and the processing module is electrically connected to the feedback module; the processing module executes the activity After the volume statistics program, an activity level judging step will be carried out: determine whether the percentage value of the activity volume exceeds a predetermined high value; if it is determined that the percentage value of the activity volume exceeds the predetermined high value, then control the feedback mode actuation; if it is determined that the percentage of activity is lower than a predetermined low value, control the feedback module to actuate. The activity sensing pad as claimed in claim 1, wherein, in the calculation step, if the current body weight is lower than a predetermined value, or use the four measurement data currently transmitted by the four load cells If the current center of pressure cannot be calculated, the processing module will no longer execute the judgment step, and the processing module will transmit an error message to the external electronic device. The activity sensing pad as claimed in claim 7, wherein the activity sensing pad further includes a positioning module, the processing module is electrically connected to the positioning module, and the processing module transmits the error Before the information is sent to the external electronic device, a current location data is first obtained by the positioning module, and the error information includes the current location data. A wheelchair comprising a vehicle frame, at least two wheels and the activity sensing pad as described in any one of claims 1 to 8, the two wheels are pivotally connected to the vehicle frame, and the activity sensing pad set on the frame. An activity monitoring system, comprising: the activity sensing pad as described in any one of claims 1 to 8, a remote server, and a monitoring program; the processing module can communicate with the remote server exchange information; the external electronic device is the remote server, and the remote server can store the activity percentage value transmitted by the activity sensing pad; the monitoring program can be controlled by an electronic device Execution, when the monitoring program is executed by the electronic device, the monitoring program can control the electronic device to connect to the remote server, so that the remote server can obtain the The activity percentage value transmitted, and the monitoring program can control a display of the electronic device to present all the activity percentage values transmitted by the activity sensing pad to the remote server.

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