CN201974523U - Movement measuring device - Google Patents
Movement measuring device Download PDFInfo
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- CN201974523U CN201974523U CN2010206947892U CN201020694789U CN201974523U CN 201974523 U CN201974523 U CN 201974523U CN 2010206947892 U CN2010206947892 U CN 2010206947892U CN 201020694789 U CN201020694789 U CN 201020694789U CN 201974523 U CN201974523 U CN 201974523U
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Abstract
An embodiment of the utility model discloses a movement measuring device. The movement measuring device comprises a shell, a radar detector and a signal processing module, a holding space is arranged in the shell, a circuit board is packaged in the holding space, the radar detector is disposed on the shell, is used for obtaining movement information of a plane moving relative to a measured object, and generates Doppler frequency shift signals carrying the movement information, and the signal processing module is connected with the radar detector, is disposed on the circuit board, is used for analyzing and processing the Doppler frequency shift signals generated by the radar detector, and obtains real-time movement data of the measured object. The movement measuring device can measure movement of a sports person at real time, obtains accurate movement data, avoids errors caused by manual measurement and estimation, and increases practicality.
Description
Technical Field
The utility model relates to a speed test technical field especially relates to a motion measurement device.
Background
With the improvement of living standard of people, more and more people participate in the following aspects: in physical exercise such as walking, running, riding, skiing, and the like, physical fitness exercise is achieved through physical exercise. Motion data, which refers to data generated during physical exercise, includes: the data of speed, average speed, distance, time and the like can enable the sporter to effectively adjust the exercise state, reasonably distribute physical ability and exert the sport skill to achieve the best exercise effect by analyzing the exercise data. There are two main schemes for measuring motion data in the prior art, one of which is: measuring the movement time and distance of the sporter by other people by means of tools such as a stopwatch, a tape measure and the like, and then calculating the average speed of the sporter; in the scheme, the exercise data of the sporter is manually measured by others, so that errors are easily caused, the obtained exercise data are not accurate enough, and the analysis on the exercise quality of the sporter is not facilitated; in addition, when the movement distance is long, the distance is measured by using tools such as a tape measure, which wastes manpower and is not practical. The second is as follows: recording the number of moving steps and the moving time of the sporter by means of a counter (pedometer), a timer and other tools, and estimating the moving distance and speed of the sporter; although the scheme can be used for self-testing of the movement of the sporter, the movement data obtained by estimation of the scheme has large error due to the difference of the movement posture, the stride and the like of each sporter, and the data analysis is not facilitated.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a technical problem that will solve provides a motion measuring device, can carry out real-time measurement to sporter's motion, obtains accurate motion data, avoids the error that artifical measurement and estimation brought, improves the practicality.
In order to solve the technical problem, an embodiment of the utility model provides a movement measuring device, include:
the circuit board packaging device comprises a shell, a circuit board and a packaging box, wherein an accommodating space is formed in the shell, and the circuit board is packaged in the accommodating space;
the radar detector is arranged on the shell and used for acquiring the motion information of a plane which moves relative to the measured object and generating a Doppler frequency shift signal carrying the motion information;
and the signal processing module is arranged on the circuit board and used for analyzing and processing the Doppler frequency shift signal generated by the radar detector to obtain real-time motion data of the measured object.
Wherein the radar detector is a Doppler radar sensor; the Doppler radar sensor adopts 24GHz transmission frequency, transmits radar beams through a planar antenna, covers a plane which moves relative to a measured object, and obtains real-time speed information of the plane through the radar beams.
Wherein the signal processing module comprises:
the filter is connected with the radar detector and is used for filtering interference signals and noise signals which interfere the Doppler frequency shift signals generated by the radar detector;
the amplifier is connected with the filter and used for amplifying the Doppler frequency shift signals filtered out by the filter;
an AD converter (Analog-to-Digital converter) connected to the amplifier and configured to perform AD Conversion on the doppler shift signal amplified by the amplifier to obtain a corresponding Digital signal;
and the processor is connected with the AD converter and is used for performing Fast Fourier Transform (FFT) conversion on the digital signals obtained by the AD converter to obtain frequency spectrums of the digital signals, analyzing the frequency spectrums of the digital signals, extracting effective frequency signals of the current speed, and calculating according to the effective frequency signals to obtain real-time motion data of the measured object.
Wherein, the processor is an ARM (Advanced RISC Machines) processor; the real-time motion data of the measured object comprises any one or more of the following data: current speed, average speed, maximum speed, movement time, movement distance.
Wherein the movement measuring device further comprises: and the display device is arranged on the shell and used for displaying the current time or displaying the real-time motion data of the measured object obtained by the signal processing module.
Wherein the movement measuring device further comprises: and the controller is arranged on the circuit board, is respectively connected with the radar detector, the signal processing module and the display device, and is used for scheduling and controlling the work of the radar detector, the signal processing module and the display device.
Wherein the movement measuring device further comprises:
the key area is arranged on the shell and used for providing control keys;
the control key is connected with the circuit board and used for setting the working mode of the motion measuring device;
the operation mode of the motion measuring device comprises: time mode or speed counting mode.
Wherein the movement measuring device further comprises: the memory is arranged on the circuit board, connected with the radar detector, the display device, the key area, the signal processing module and the controller and used for storing real-time motion data of the measured object.
Wherein the movement measuring device further comprises: the power, with radar detector, display device, press the key region, signal processing module, the controller with the memory is connected, is used for radar detector, display device, press the key region, signal processing module, the controller with the memory provides working power.
Implement the embodiment of the utility model provides a, following beneficial effect has:
the embodiment of the utility model adopts the radar detector to obtain the real-time motion information of the plane which moves relatively with the measured object, and generates the Doppler frequency shift signal carrying the real-time motion information; because the anti-interference capability of the radar is stronger, the data obtained by the radar detector is more stable and the accuracy is higher; analyzing and processing the Doppler frequency shift signal by adopting a signal processing module in the motion measuring device to obtain real-time motion data of the measured object; avoided the error that artifical measurement and estimation brought, made the motion data that obtain more accurate, also made simultaneously the utility model discloses a motion measurement device possesses higher practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is an external structural view of an embodiment of a motion measuring device according to the present invention;
fig. 2 is a schematic view of the internal structure of an embodiment of the movement measuring device of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the signal processing module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the embodiment of the present invention discloses a motion measuring device, which is suitable for measuring motion data of various motions such as walking, jogging, running, cycling, and skiing.
Please refer to fig. 1, which is a schematic diagram of an external structure of an embodiment of a motion measurement apparatus according to the present invention; the movement measuring device includes:
a casing 1, wherein the casing 1 is approximately rectangular, and corners of the casing 1 are round corners; the housing 1 has a receiving space therein, and a circuit board (not shown) is enclosed in the receiving space.
The radar detector 11 is fixedly arranged on the shell 1, a radar wave beam emitted by the radar detector 11 covers a plane which moves relative to a measured object, motion information of the plane and the measured object moving relative to each other is obtained, and a Doppler frequency shift signal carrying the motion information is generated.
In a specific implementation, the radar detector 11 is preferably a doppler radar sensor, which is fixedly disposed on the upper portion of the housing 1, and the doppler radar sensor adopts a CW (continuous wave) operation mode, and adopts a transmission frequency of 24GHz, and transmits a radar beam outwards through a planar antenna, and the radar beam covers a plane moving relative to an object to be measured, such as: if the object to be measured is a sporter, and the sporter does jogging motion on the ground, the radar beam emitted by the radar detector 11 covers the ground, and the radar beam is reflected by the ground after reaching the ground to form an echo signal, wherein the echo signal carries motion information of relative motion between the ground and the sporter; the radar detector 11 receives the echo signal, mixes the received echo signal with a radar beam emitted by the radar detector, and forms a doppler frequency shift signal carrying motion information of relative motion of the ground. It should be noted that the motion information of the ground performing relative motion, which is obtained by the radar detector 11, is mainly speed information generated by the relative motion between the ground and a moving person, and because the radar detector 11 adopts a CW working mode, during the motion process of the object to be measured, the radar detector 11 continuously transmits radar beams to a plane performing relative motion with the object to be measured and receives echo signals reflected by the plane to obtain doppler frequency shift signals carrying real-time speed information.
And the display device 12 is fixedly arranged on the shell 1 and is used for displaying the current time or displaying the real-time motion data of the measured object.
In a specific implementation, the display device 12 may be a display screen, a display, or the like, and includes a liquid crystal screen and a corresponding driving circuit, wherein the liquid crystal screen of the display device 12 is fixedly disposed on the casing 1, and preferably, the liquid crystal screen is fixedly disposed in the middle of the casing 1; the driving circuit of the display device 12 is connected to the liquid crystal panel and disposed on the circuit board in the accommodating space of the housing 1, and the driving circuit is used for controlling the corresponding display on the liquid crystal panel.
A key area 13, wherein the key area 13 is arranged on the shell 1 and used for providing control keys; the control key is connected with the circuit board, and the working mode of the movement measuring device can be set through the control key.
In a specific implementation, preferably, the key area 13 is disposed at a lower portion of the casing 1, and is configured to provide three control keys, including: [▲]Up-regulating key [ alpha ], [▼]Down-regulating bond, [ MODE]A mode navigation key. [ MODE]The key is mainly used for controlling the setting process of the working mode of the movement measuring device▲]Key and 2▼]Key for assistance [ MODE]The key performs setting work. Wherein the operation mode of the motion measurement device comprises: a time mode and a speed counting mode; in the time mode, the motion measurement device can display the current time and date in real time, so that the functions of time, time system, date and the like of the motion measurement device in the time mode can be set through the three control keys. The movement measuring device adopts the following mode to count the speed: [ PACE]Mode or [ SPEED ]]Mode (b) wherein [ PACE]In the mode, the speed is represented by time/distance, the speed unit is min/km, and the speed counting mode is particularly suitable for walking, jogging and other sports; [ SPEED ]]In this way, the speed is expressed in terms of distance/time, in km/h or mi/h, which is particularly suitable for sports such as sprinting, skiing, etc. Under the speed mode of counting, motion measuring device can adopt following one or more mode display measured object's real-time motion data according to the setting, includes: [ TRIP TIMER]In a mode, the current speed and the motion time can be displayed in real time; [ DISTANCE)]In a mode, the current speed and the motion distance can be displayed in real time; [ AVERAGE SPEED]In a mode, the current speed and the average speed can be displayed in real time; [ MAXIMUM SPEED ]]In a mode, the current speed and the maximum speed can be displayed in real time; therefore, the corresponding display mode of the motion measuring device in the speed counting mode can be set through the three control keys. It can be understood that each control button is connected to a corresponding control circuit, which is disposed on a circuit board in the accommodating space of the housing 1, forIn response to operation of the control key.
Please refer to fig. 2, which is a schematic diagram of an internal structure of an embodiment of the exercise measuring device of the present invention; the movement measuring device further includes:
the signal processing module 21 is arranged on a circuit board in the accommodating space in the shell 1, and the signal processing module 21 is connected with the radar detector 11 and the display device 12 and used for analyzing and processing the Doppler frequency shift signal which is generated by the radar detector 11 and carries the motion information, obtaining the real-time motion data of the object to be measured and transmitting the obtained real-time motion data to the display device 12 for displaying.
In specific implementation, the radar detector 11 transmits the obtained doppler shift signal carrying real-time speed information to the signal processing module 21, and the signal processing module 21 performs a series of processing on the doppler shift signal to obtain real-time motion data of the measured object, where the real-time motion data includes, but is not limited to, any one or more of the following data: current speed, average speed, maximum speed, movement time, movement distance.
Specifically, please refer to fig. 3, which is a schematic structural diagram of an embodiment of the signal processing module according to the present invention; the signal processing module 21 includes:
the filter 211 is connected to the radar detector 11, and configured to filter an interference signal and a noise signal that interfere with the doppler shift signal generated by the radar detector 11.
And an amplifier 212, connected to the filter 211, for amplifying the doppler shift signal filtered by the filter 211.
And the AD converter 213 is connected to the amplifier 212, and is configured to perform AD conversion on the doppler shift signal amplified by the amplifier 212 to obtain a corresponding digital signal.
In a specific implementation, after the filtering and amplifying process of the filter 211 and the amplifier 212, a clearer doppler shift signal carrying real-time speed information can be obtained, and the clearer doppler shift signal is transmitted to the AD converter 213 for AD conversion; since the radar detector 11 adopts the CW operation mode, the detected doppler shift signal is an analog continuous wave signal, and the AD converter 213 converts the analog continuous wave signal into a digital signal.
And the processor 214 is connected with the AD converter 213 and configured to perform FFT on the digital signal obtained by the AD converter 213 to obtain a frequency spectrum of the digital signal, analyze the frequency spectrum of the digital signal, extract an effective frequency signal of the real-time speed information, and perform calculation according to the effective frequency signal to obtain real-time motion data of the object to be measured.
In a specific implementation, preferably, the processor 214 is an ARM processor, the ARM processor performs FFT on the digital signal obtained by the AD converter 213, converts the digital signal from a time domain to a frequency domain, then analyzes a frequency spectrum of the signal in the frequency domain, and extracts an effective frequency signal of real-time speed information, where a frequency spectrum corresponding to the real-time speed information is a plurality of spectral lines, where a spectral line with the highest amplitude represents the main speed information, and the ARM processor screens out a frequency corresponding to the spectral line with the highest amplitude, and performs operation processing with reference to the following formula to obtain real-time motion data of the object to be measured, where the formula is as follows:
wherein,ƒ D the doppler frequency or difference frequency carrying the real-time velocity information is the frequency of the doppler frequency shift signal carrying the real-time velocity information obtained by the radar detector 11;ƒ 0 the transmission frequency of the radar detector 11 is, in the present embodiment,ƒ 0 is 24 GHz; c. C 0 Is the speed of light;αis the actual direction of movement "The angle between the connecting lines of the plane Doppler radar and the target can be preset by a motion measuring device according to a large number of test experiment results, can be acquired by a radar detector 11 in real time and transmitted to an ARM processor along with Doppler frequency shift signals, and can be acquired by a special angle sensor and transmitted to the ARM processor; v is the relative movement speed between the plane moving relative to the measured object and the measured object.
Referring to the above operation formula, the ARM processor may calculate v, that is, a current speed value (real-time speed value) of the measured object, and it can be understood that the current speed value obtained by the ARM processor is different according to different set speed counting modes, for example: if the SPEED counting mode is set to be the [ PACE ] mode through the control key, the unit of the obtained current SPEED value is min/km, and if the SPEED counting mode is set to be the [ SPEED ] mode through the control key, the unit of the obtained current SPEED value is km/h or mi/h. In addition, according to the display mode set by the motion measuring device in the speed counting mode, the final result output by the ARM processor is different, such as: if the speed is displayed in a speed counting mode according to the setting of the control key by adopting a [ TRIP TIMER ] mode of the movement measuring device, the ARM processor outputs the obtained current speed value and the movement time to the display device 12, and the display device 12 displays the current speed and the movement time of the measured object in real time; the following steps are repeated: if the motion measuring device is set to display in a speed counting mode in a mode of [ DISTANCE ] through the control key, the ARM processor also needs to calculate to obtain a motion DISTANCE according to the obtained current speed value, then the obtained current speed value and the calculated motion DISTANCE are output to the display device 12, and the display device 12 displays the current speed and the motion DISTANCE in real time; for another example: if the motion measuring device is set to display in a speed counting mode in a mode of [ AVERAGE SPEED ] through the control key, the ARM processor needs to calculate to obtain an average speed according to the obtained current speed value, then the obtained current speed value and the calculated average speed are output to the display device 12, and the display device 12 displays the current speed and the average speed in real time; the following steps are repeated: if the motion measuring device is set to display in a SPEED counting mode in a [ MAXIMUM SPEED ] mode through the control key, the ARM processor needs to compare the obtained current SPEED value with the previously obtained real-time SPEED value to obtain the MAXIMUM SPEED, then the obtained current SPEED value and the compared MAXIMUM SPEED are output to the display device 12, and the display device 12 displays the current SPEED and the MAXIMUM SPEED in real time. It will be appreciated that, since the motion measurement device itself has a timing function, the motion time of the object to be measured can be directly timed by the motion measurement device and then provided to the ARM processor for calling.
Referring again to fig. 2, the motion measuring apparatus further includes:
the controller 22 is arranged on a circuit board in the accommodating space in the shell 1, and the controller 22 is connected with the radar detector 11, the display device 12, the key area 13 and the signal processing module 21 and is used for scheduling and controlling the work of the radar detector 11, the display device 12, the key area 13 and the signal processing module 21.
In specific implementation, the controller 104 is an MCU (Micro Control Unit), which sends Control instructions to the modules of the motion measurement apparatus to Control the modules to perform ordered operations, so as to realize the ordered and effective cooperation of the modules, thereby realizing the normal operation of the whole motion measurement apparatus.
And the memory 23 is arranged on the circuit board in the accommodating space in the shell 1, and the memory 23 is connected with the radar detector 11, the display device 12, the key area 13, the signal processing module 21 and the controller 22 and is used for storing real-time motion data of the object to be measured.
In a specific implementation, the memory 23 includes a buffer area and a storage area, where the buffer area is used to buffer the latest measurement record of the motion measurement device, the measurement record includes real-time motion data of the object to be measured by the motion measurement device, and the data in the buffer area can be updated according to the operation of the motion measurement device; the storage area is used for storing measurement records of a preset number of times before the movement measuring device, and the preset number of times can be preset according to the size of the storage area, such as: the memory area can be preset to store 5 measurement records, the last record always occupies the first record position, and when the 5 records are full and need to be stored again, the first record will be overwritten. It can be understood that the memory 23 should also store other data generated during the operation of the motion measurement apparatus, including storing the echo signal received by the radar detector 11 and the obtained doppler shift signal, storing information set by the control key, storing a control program, and the like, and in addition, the data stored in the memory 23 may also be cleared, and the data in the memory 23 may be cleared by operating the control key in the key area 13, and the specific process of clearing is similar to the setting process of the motion measurement apparatus, and is not described herein again.
And the power supply 24 is connected with the radar detector 11, the display device 12, the key area 13, the signal processing module 21, the controller 22 and the memory 23, and is used for providing a working power supply for the radar detector 11, the display device 12, the key area 13, the signal processing module 21, the controller 22 and the memory 23.
In a specific implementation, the power source 24 may be a common dry battery or a rechargeable battery, wherein, when the power source 24 is a rechargeable battery, the motion measurement device may further include a charging circuit on an internal circuit board for charging the rechargeable battery, so as to ensure power supply of the motion measurement device and normal operation of the motion measurement device.
The assembly and the operating principle of the movement measuring device according to the invention will be described in detail below.
The signal processing module 21, the controller 22, the memory 23, the driving circuit, the control circuit and the like on the circuit board are connected with each other as required, and the corresponding modules or circuits on the circuit board are connected with the radar detector 11 on the casing 1, the liquid crystal screen of the display device 12 and the control keys as required. Encapsulate the circuit board in the accommodation space that casing 1 formed, adorn power 24, accomplished promptly the utility model discloses a motion measuring device's assembly process.
The operation principle of the movement measuring device of the present invention will be described below with a specific example.
The measured object is set as a sporter who does jogging motion relative to the ground, and the sporter adopts the motion measuring device to carry out self-measurement on the jogging motion of the sporter.
Before starting the exercise, the athlete fixes the exercise measuring device on his body, the position where the exercise measuring device is fixed being determined by the athlete himself, but it is necessary to keep the radar antenna of the radar probe 11 of the exercise measuring device facing the ground. After the power supply 24 is installed, the exercise measuring device is in a standby state, and the exerciser presses the MODE for a long time]Key and 2▼]When the key is about 2 seconds, the sports measuring device can enter a set state, and in the set state, the sporter can calibrate the data of jogging through the control key provided by the key area 13, set the date, the hour system and the current time, and select a speed counting mode ([ PACE)]Mode), metering unit (min/km), resetting total journey (resetting total journey to zero to count speed from zero), selecting working mode (speed counting mode), selecting display mode in speed counting mode, where can be selected [ TRIP TIMER ]]The method; after the setting is completed and confirmed, the memory 23 stores the various setting information to facilitate the viewing of the exerciser.
In the process of movement of the sporter, the radar detector 11 continuously transmits radar beams to the ground in a CW mode under the control of the controller 22 and receives echo signals reflected by the ground; meanwhile, the radar detector 11 mixes the received echo signal with the radar beam emitted by itself to form a doppler shift signal carrying real-time speed information, and transmits the doppler shift signal to the signal processing module 21. Then, the controller 22 controls the signal processing module 21 to operate, the signal processing module 21 performs filtering, amplification, AD conversion, FFT conversion, effective information screening, and motion data calculation on the received doppler shift signal, and finally obtains real-time motion data of the sporter, then, the controller 22 controls the signal processing module 21 to transmit the obtained motion data to the display device 12, and controls the display device 12 to correspondingly display the real-time motion data, and the sporter can read the real-time motion data of the sporter from the liquid crystal screen of the display device 12. In the process of movement of the sporter, the movement measuring device can display the movement data of the sporter in real time, the movement data is stored in the memory 23, when the sporter stops moving, the last measurement record is displayed on a liquid crystal screen of the movement measuring device, and the sporter can call the data stored in the memory 23, check the previous measurement record and know the movement condition of the sporter.
It will be appreciated that the above described testing of athletic data for a jogging athlete is by way of example only, and that other athletic activities, such as: for example, the measurement process of the running exercise, the skiing exercise, and the walking exercise can be analyzed similarly, which is not described herein.
It should be noted that the structure of the motion measuring device of the present invention is only an example, and other structures, such as: the housing of the motion measurement device may also be other shapes, such as circular, oval, square, etc.; the following steps are repeated: the control keys in the key area 13 may be arranged in other situations, for example, the number of the control keys may be 3 or more than 3, and the arrangement of the control keys may also be different; the following steps are repeated: the radar detector 11, the display device 12 and the key area 13 may be distributed on the casing 1 in other manners; for another example: the process of connecting and matching the modules of the motion measurement device with each other may also be different from the above process, and so on, and similar analysis may be performed in the above other cases, which is not described herein again.
Through the description of the embodiment, the embodiment of the utility model provides an adopt radar detedtor to obtain the planar real-time motion information that makes relative motion with the measured object, generate the Doppler frequency shift signal that carries real-time motion information; because the anti-interference capability of the radar is stronger, the data obtained by the radar detector is more stable and the accuracy is higher; analyzing and processing the Doppler frequency shift signal by adopting a signal processing module in the motion measuring device to obtain real-time motion data of the measured object; avoided the error that artifical measurement and estimation brought, made the motion data that obtain more accurate, also made simultaneously the utility model discloses a motion measurement device possesses higher practicality.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A motion measurement device, comprising:
the circuit board packaging device comprises a shell, a circuit board and a packaging box, wherein an accommodating space is formed in the shell, and the circuit board is packaged in the accommodating space;
the radar detector is arranged on the shell and used for acquiring the motion information of a plane which moves relative to the measured object and generating a Doppler frequency shift signal carrying the motion information;
and the signal processing module is arranged on the circuit board and used for analyzing and processing the Doppler frequency shift signal generated by the radar detector to obtain real-time motion data of the measured object.
2. The motion measuring apparatus of claim 1, wherein:
the radar detector is a Doppler radar sensor;
the Doppler radar sensor adopts 24GHz transmission frequency, transmits radar beams through a planar antenna, covers a plane which moves relative to a measured object, and obtains real-time speed information of the plane through the radar beams.
3. The motion measurement apparatus of claim 2, wherein the signal processing module comprises:
the filter is connected with the radar detector and is used for filtering interference signals and noise signals which interfere the Doppler frequency shift signals generated by the radar detector;
the amplifier is connected with the filter and used for amplifying the Doppler frequency shift signals filtered out by the filter;
the AD converter is connected with the amplifier and used for performing AD conversion on the Doppler frequency shift signal amplified by the amplifier to obtain a corresponding digital signal;
and the processor is connected with the AD converter and used for carrying out FFT (fast Fourier transform) on the digital signal obtained by the AD converter to obtain a frequency spectrum of the digital signal, analyzing the frequency spectrum of the digital signal, extracting an effective frequency signal of the real-time speed information, and calculating according to the effective frequency signal to obtain real-time motion data of the measured object.
4. A movement measuring device according to claim 3, characterized in that:
the processor is an ARM processor;
the real-time motion data of the measured object comprises any one or more of the following data: current speed, average speed, maximum speed, movement time, movement distance.
5. The motion measurement apparatus according to any one of claims 1 to 4, further comprising:
and the display device is arranged on the shell and used for displaying the current time or displaying the real-time motion data of the measured object obtained by the signal processing module.
6. The motion measurement apparatus of claim 5, further comprising:
and the controller is arranged on the circuit board, is respectively connected with the radar detector, the signal processing module and the display device, and is used for scheduling and controlling the work of the radar detector, the signal processing module and the display device.
7. The motion measurement apparatus of claim 6, further comprising:
the key area is arranged on the shell and used for providing control keys;
the control key is connected with the circuit board and used for setting the working mode of the motion measuring device;
the operation mode of the motion measuring device comprises: time mode or speed counting mode.
8. The motion measurement apparatus of claim 7, further comprising:
the memory is arranged on the circuit board, connected with the radar detector, the display device, the key area, the signal processing module and the controller and used for storing real-time motion data of the measured object.
9. The motion measurement apparatus of claim 8, further comprising:
the power, with radar detector, display device, press the key region, signal processing module, the controller with the memory is connected, is used for radar detector, display device, press the key region, signal processing module, the controller with the memory provides working power.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206947892U CN201974523U (en) | 2010-12-31 | 2010-12-31 | Movement measuring device |
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| CN2010206947892U CN201974523U (en) | 2010-12-31 | 2010-12-31 | Movement measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107682110A (en) * | 2017-03-06 | 2018-02-09 | 北京猎户星空科技有限公司 | A kind of data transmission method, device and radar equipment |
| CN111208508A (en) * | 2019-12-25 | 2020-05-29 | 珠海格力电器股份有限公司 | Physical activity measurement method, device and electronic equipment |
| CN111505622A (en) * | 2020-04-15 | 2020-08-07 | 苏州瑞地测控技术有限公司 | Motion speed measurement analysis device based on millimeter wave radar |
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107682110A (en) * | 2017-03-06 | 2018-02-09 | 北京猎户星空科技有限公司 | A kind of data transmission method, device and radar equipment |
| WO2018161869A1 (en) * | 2017-03-06 | 2018-09-13 | 北京猎户星空科技有限公司 | Data transmission method, device and radar apparatus |
| CN107682110B (en) * | 2017-03-06 | 2020-02-11 | 北京猎户星空科技有限公司 | Data transmission method and device and radar equipment |
| US10962626B2 (en) | 2017-03-06 | 2021-03-30 | Beijing Orion Star Technology Co., Ltd. | Data transmission method, device and radar apparatus |
| CN111208508A (en) * | 2019-12-25 | 2020-05-29 | 珠海格力电器股份有限公司 | Physical activity measurement method, device and electronic equipment |
| CN111505622A (en) * | 2020-04-15 | 2020-08-07 | 苏州瑞地测控技术有限公司 | Motion speed measurement analysis device based on millimeter wave radar |
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