CN205785240U - A kind of step count set based on the detection of ankle movement velocity - Google Patents
A kind of step count set based on the detection of ankle movement velocity Download PDFInfo
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- CN205785240U CN205785240U CN201620693586.9U CN201620693586U CN205785240U CN 205785240 U CN205785240 U CN 205785240U CN 201620693586 U CN201620693586 U CN 201620693586U CN 205785240 U CN205785240 U CN 205785240U
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Abstract
This utility model relates to a kind of step count set based on the detection of ankle movement velocity, belongs to body motion information detection technique field.Including shell, circuit board, single shaft micro-mechanical accelerometer, bluetooth module and Bluetooth antenna.Shell is worn at ankle by wrist strap, and circuit board is fixed on shell, and single shaft micro-mechanical accelerometer, bluetooth module and Bluetooth antenna are fixing on circuit boards；The signal output part of single shaft micro-mechanical accelerometer is connected with the single-chip microcomputer signal input part in bluetooth module, and the RF signal output of bluetooth module is connected with the signal input part of Bluetooth antenna.The horizontal movement speed produced at ankle when this step count set directly detects walking by the single-chip microcomputer in single shaft micro-mechanical accelerometer and bluetooth module, utilizes the umber of pulse of ankle motion rate signals to carry out meter step.Owing to the sensitive direction of single shaft micro-mechanical accelerometer is parallel to the ground, can effectively eliminate the extraneous vibration interference impact on meter step result, there is stronger capacity of resisting disturbance.
Description
Technical field
This utility model relates to a kind of step count set based on the detection of ankle movement velocity, belongs to body motion information detection
Technical field.
Background technology
Pedometer is as a kind of portable health management instrument, it is possible to quantify and monitor the step of daily step exercises of people
Calorie consumption amount and burn fat amount in number, walking, people the most accurately can be managed the health of oneself, reach
The purpose of moderate exercise, thus pedometer obtains and is increasingly widely applied.
When walking, sole clashes into human body with the intermittent of ground, and centre of body weight can be made to produce in the direction being perpendicular to ground
The raw up-down vibration Tong Bu with walk frequency.Existing pedometer utilizes and is fixed on wrist or is placed on the vibrating sensor of waist
Detect the up and down motion of centre of body weight, just walking step number can be counted.Due to the cushioning effect of health, sole and ground
When the conduct vibrations produced is clashed into waist or wrist in face, Oscillation Amplitude is the most significantly decayed, and meter step result is easily by elevator, traffic
The impact of the extraneous vertical vibration interference such as instrument, reduces pedometer meter step precision.
Summary of the invention
The purpose of this utility model is to propose a kind of step count set based on the detection of ankle movement velocity, foot when utilizing walking
The horizontal movement speed produced at wrist carries out meter step, owing to velocity measuring direction is parallel to the ground, therefore to elevator, the vehicles
Insensitive Deng extraneous vertical vibration interference, that only record is actual walking step number.
The step count set based on the detection of ankle movement velocity that the utility model proposes, micro-including shell, circuit board, single shaft
Mechanical accelerometer, bluetooth module and Bluetooth antenna；Its housing is worn at ankle by wrist strap, and circuit board is fixed on shell
On, single shaft micro-mechanical accelerometer, bluetooth module and Bluetooth antenna are separately fixed on circuit board；Single shaft micro-mechanical accelerometer
Signal output part be connected with the signal input part of bluetooth module, the RF signal output of bluetooth module and Bluetooth antenna
Signal input part is connected；Described shell, for along with the horizontal movement of ankle, produces acceleration of motion physical signalling；Institute
The single shaft micro-mechanical accelerometer stated, for the acceleration of motion physical signalling that shell produces is transformed into the signal of telecommunication, single shaft is micro-
The sensitive direction of mechanical accelerometer is the ankle direction of motion；Described bluetooth module, is built-in with single-chip microcomputer, for micro-to single shaft
The acceleration signal of telecommunication of mechanical accelerometer output is sampled, and is integrated acceleration digital signal, it is thus achieved that ankle simultaneously
The movement velocity digital signal at place；According to the threshold value set, the movement velocity digital signal at ankle is shaped as rectangular pulse
Signal, and rectangular pulse signal is counted, obtain the step number of walking, finally meter step data is modulated into the radio frequency of 2.4GHz
Signal exports to Bluetooth antenna；Described Bluetooth antenna, for the radiofrequency signal of 2.4GHz that exported by bluetooth module with wireless
Mode be transferred to smart mobile phone carry out count step data show.
The step count set based on the detection of ankle movement velocity that the utility model proposes, its advantage is, this ankle formula meter walks
The horizontal movement speed produced at ankle when device directly detects walking by single shaft micro-mechanical accelerometer and single-chip microcomputer, utilizes
The peak value of rate signal counts.Owing to the sensitive direction of single shaft micro-mechanical accelerometer is parallel to the ground, to elevator, traffic
The vertical interference that the extraneous vibrations such as instrument produce is insensitive, can effectively eliminate the extraneous vibration interference impact on meter step result.This
The step count set measuring method based on the detection of ankle movement velocity that utility model proposes is simple and reliable, resistance to vertical interference performance
By force, highly sensitive, use the single chip computer measurement ankle speed in single shaft micro-mechanical accelerometer and bluetooth module, circuit is simple,
Cost is relatively low.
Accompanying drawing explanation
Fig. 1 is the frame for movement schematic diagram of the step count set based on the detection of ankle movement velocity that the utility model proposes.
Fig. 2 is the step count set schematic block circuit diagram based on the detection of ankle movement velocity that the utility model proposes.
Ankle movement velocity change schematic diagram when Fig. 3 is walking.
In Fig. 1,1 is shell, and 2 is single shaft micro-mechanical accelerometer, and 3 is the bluetooth module of built-in single-chip microcomputer, and 4 is bluetooth sky
Line, 5 is circuit board.
Detailed description of the invention
The structure of the step count set based on the detection of ankle movement velocity that the utility model proposes is as it is shown in figure 1, include: outer
Shell 1, circuit board 5, single shaft micro-mechanical accelerometer 2, the bluetooth module 3 of built-in single-chip microcomputer, Bluetooth antenna 4；Shell passes through wrist strap
It is fixed on ankle；Circuit board 4 is fixed by screws on shell.Single shaft micro-mechanical accelerometer 2, the bluetooth of built-in single-chip microcomputer
The electronic devices and components such as module 3 and Bluetooth antenna 4 are fixing on the circuit board 4；The signal output part of single shaft micro-mechanical accelerometer with
Single-chip microcomputer signal input part in bluetooth module 3 is connected, and the signal output part of bluetooth module 3 is defeated with the signal of Bluetooth antenna 4
Enter end to be connected, as shown in Figure 2.
The function of each device of this device is:
Shell 1, the horizontal movement produced at ankle in time inputting walking.
Single shaft micro-mechanical accelerometer 2, is transformed into the signal of telecommunication for the acceleration of motion physical signalling produced by shell 1,
Its sensitive direction is the ankle direction of motion；
Bluetooth module 3, built-in single-chip microcomputer, first acceleration signal is integrated, it is thus achieved that the movement velocity at ankle, so
The peak value of rear judgement rate signal also counts, and the radiofrequency signal that meter step data is finally modulated into 2.4GHz exports to bluetooth
Antenna 4；
Bluetooth antenna 4, is wirelessly transmitted to smart mobile phone for the 2.4GHz radiofrequency signal exported by bluetooth module 3
Carry out counting step data to show；
Circuit board 5, is used for fixing and connect single-axis acceleration sensors 2, bluetooth module 3 and Bluetooth antenna 4, and by shell
The motion of 1 passes to single-axis acceleration sensors 2.
In one embodiment of foot wrist type step count set of the present utility model, use the ADXL190 single shaft of ADI company of the U.S.
Micro-mechanical accelerometer；Using the CC2541 bluetooth module that TI company produces, this module is built-in with enhancement mode 8051MCU, 256KB
Flash memory able to programme and 8KB RAM；Use the 2450AT45A100 bluetooth ceramic paster antenna of Johanson company.
Step count set based on the detection of ankle movement velocity of the present utility model, single-axis acceleration sensors therein, indigo plant
The electronic devices and components such as tooth module and Bluetooth antenna are fixing on circuit boards, and circuit board is fixing in the enclosure, and whole step count set is used
Wrist strap is worn at the ankle of user.
This utility model operation principle based on the step count set that ankle movement velocity detects is:
When walking, each step all can be analyzed to foot-up, accelerated motion forward, forward retarded motion and four mistakes of stopping over to people
Journey.When sole all lands every time, foot and ground do not have relative motion, i.e. the propulsion speed of foot is zero, as shown in Figure 3.
Measure the movement velocity at ankle when walking, speed pulse signal is counted, can be achieved with meter step.
During walking, ankle movement conduction is on the single shaft micro-mechanical accelerometer 2 in step count set, and single shaft micromechanics accelerates
Ankle acceleration of motion physical signalling is transformed into the signal of telecommunication by degree meter 2, and the single-chip microcomputer in bluetooth module 3 is to the acceleration signal of telecommunication
Being integrated, it is thus achieved that the speed of ankle motion, rate signal carries out threshold decision and counting, bluetooth module 3 will count step data
The radiofrequency signal being modulated into 2.4GHz exports to Bluetooth antenna 4, and radiofrequency signal is finally wirelessly transmitted to by Bluetooth antenna 4
Smart mobile phone.
The step count set that this utility model detects based on ankle movement velocity directly detects ankle movement velocity at ankle,
The umber of pulse utilizing ankle motion rate signals carries out meter step, due to sensitive direction and the ground of single shaft micro-mechanical accelerometer
Parallel, the vertical interference producing the extraneous vibration such as elevator, the vehicles is insensitive, can effectively eliminate extraneous vibration and disturb meter
The impact of step result.The utility model proposes based on ankle movement velocity detection step count set measuring method simple and reliable,
Resistance to vertical interference performance is strong, highly sensitive, uses the single chip computer measurement ankle in single shaft micro-mechanical accelerometer and bluetooth module
Speed, simple in construction, with low cost.
Claims (1)
1. a step count set based on the detection of ankle movement velocity, it is characterised in that this step count set includes shell, circuit
Plate, single shaft micro-mechanical accelerometer, bluetooth module and Bluetooth antenna；Its housing is worn at ankle by wrist strap, and circuit board is solid
Being scheduled on shell, single shaft micro-mechanical accelerometer, bluetooth module and Bluetooth antenna are separately fixed on circuit board；Single shaft micromechanics
The signal output part of accelerometer is connected with the signal input part of bluetooth module, and the RF signal output of bluetooth module is with blue
The signal input part of tooth antenna is connected；Wherein,
Described shell, for along with the horizontal movement of ankle, produces acceleration of motion physical signalling；
Described single shaft micro-mechanical accelerometer, for the acceleration of motion physical signalling that shell produces is transformed into the signal of telecommunication,
The sensitive direction of single shaft micro-mechanical accelerometer is the ankle direction of motion；
Described bluetooth module, is built-in with single-chip microcomputer, for entering the acceleration signal of telecommunication of single shaft micro-mechanical accelerometer output
Row sampling, is integrated acceleration digital signal, it is thus achieved that the movement velocity digital signal at ankle simultaneously；According to the threshold set
Value, is shaped as rectangular pulse signal by the movement velocity digital signal at ankle, and counts rectangular pulse signal, obtain
The step number of walking, the radiofrequency signal that meter step data is finally modulated into 2.4GHz exports to Bluetooth antenna；
Described Bluetooth antenna, the radiofrequency signal of the 2.4GHz for being exported by bluetooth module is wirelessly transmitted to intelligence hands
Machine carries out counting step data and shows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693586.9U CN205785240U (en) | 2016-07-04 | 2016-07-04 | A kind of step count set based on the detection of ankle movement velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620693586.9U CN205785240U (en) | 2016-07-04 | 2016-07-04 | A kind of step count set based on the detection of ankle movement velocity |
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| Publication Number | Publication Date |
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| CN205785240U true CN205785240U (en) | 2016-12-07 |
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| CN201620693586.9U Active CN205785240U (en) | 2016-07-04 | 2016-07-04 | A kind of step count set based on the detection of ankle movement velocity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017504A (en) * | 2016-07-04 | 2016-10-12 | 紫光股份有限公司 | Step counting device based on ankle movement speed detection |
| US11426627B2 (en) | 2017-08-23 | 2022-08-30 | Huawei Technologies Co., Ltd. | Method and apparatus for counting foot step based on acceleration information, and device |
-
2016
- 2016-07-04 CN CN201620693586.9U patent/CN205785240U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017504A (en) * | 2016-07-04 | 2016-10-12 | 紫光股份有限公司 | Step counting device based on ankle movement speed detection |
| US11426627B2 (en) | 2017-08-23 | 2022-08-30 | Huawei Technologies Co., Ltd. | Method and apparatus for counting foot step based on acceleration information, and device |
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