CN105738645A - Velocity measurement method and device based on terminal - Google Patents
Velocity measurement method and device based on terminal Download PDFInfo
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- CN105738645A CN105738645A CN201610133283.6A CN201610133283A CN105738645A CN 105738645 A CN105738645 A CN 105738645A CN 201610133283 A CN201610133283 A CN 201610133283A CN 105738645 A CN105738645 A CN 105738645A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
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Abstract
The invention discloses a velocity measurement method and device based on a terminal and a device. The velocity measurement method comprises steps of controlling a preset distance measurement sensor arranged on the terminal to start according to a velocity measurement trigger order when the terminal receives the velocity measurement trigger order; transmitting a first emission signal to an object to be measured in velocity through the preset distance measurement sensor transmitting a second emission signal to the object to be measured in the velocity through the preset distance measurement sensor when the terminal receives the order for stopping the velocity measurement; and performing measurement on the moving velocity of the object to be measured in velocity on the basis of the first emission signal and the second emission signal. The distance measurement sensor is directly arranged on the terminal, so that the positioning can be performed through the emission signal transmitted by the distance measurement sensor when the object begins moving or stops moving. As a result, when the terminal is in a static state, the method and the device also can perform velocity measurement on the moving object beyond the terminal, which improves the flexibility and convenience.
Description
Technical field
The invention belongs to communication technical field, particularly relate to a kind of speed-measuring method based on terminal and device.
Background technology
Along with the fast development of science and technology, the life that the various personalized functions of terminal, application are us brings many facilities, and meanwhile, the functional requirement of terminal is also got more and more by user.
Such as, user can utilize terminal (smart mobile phone) to carry out the measurement of speed, it is by global positioning system (GPS that current user carries out the terminal major part that tests the speed, GlobalPositioningSystem) mode navigated realizes, as moved by terminal, and utilize GPS that terminal is positioned, thus measure speed according to location information and duration.
To in the research of prior art and practice process, it was found by the inventors of the present invention that this tachometric survey mode to depend on the mobile ability of terminal itself it is achieved that the problem that motility is relatively low, convenience is not high of the operation that therefore can cause testing the speed.
Summary of the invention
It is an object of the invention to provide a kind of speed-measuring method based on terminal and device, it is intended to improve motility and the convenience of the operation of testing the speed based on terminal.
For solving above-mentioned technical problem, the embodiment of the present invention provides techniques below scheme:
A kind of speed-measuring method based on terminal, including:
When terminal receives and tests the speed triggering command, according to the described triggering command that tests the speed, control to start the default distance measuring sensor being arranged in terminal；
The first transmitting signal is sent to object to be measured by described default distance measuring sensor；
When described terminal receives and tests the speed halt instruction, send the second transmitting signal by described default distance measuring sensor to described object to be measured；
Launch signal and described second based on described first and launch signal, the translational speed of described object to be measured is measured.
For solving above-mentioned technical problem, the embodiment of the present invention also provides for techniques below scheme:
A kind of speed measuring device based on terminal, including:
Control unit, for when terminal receives and tests the speed triggering command, according to the described triggering command that tests the speed, controls to start the default distance measuring sensor being arranged in terminal；
First transmitting element, for sending the first transmitting signal by described default distance measuring sensor to object to be measured；
Second transmitting element, for when described terminal receives and tests the speed halt instruction, sending the second transmitting signal by described default distance measuring sensor to described object to be measured；
Test the speed unit, launches signal for launching signal and described second based on described first, the translational speed of described object to be measured is measured.
Relative to prior art, the embodiment of the present invention, first, when terminal receives and tests the speed triggering command, control to start the default distance measuring sensor being arranged in terminal, and send the first transmitting signal by this distance measuring sensor to object to be measured；Then, in the process that terminal moves, when terminal receives and tests the speed halt instruction, send the second transmitting signal by this distance measuring sensor to object to be measured, finally launch signal in conjunction with the first transmitting signal and second, the translational speed of object to be measured is measured；Namely the embodiment of the present invention directly arranges distance measuring sensor in terminal, when object starts move and stop mobile, send transmitting signal respectively through this distance measuring sensor to position, thus when terminal is static, mobile object outside terminal tachometric survey be can also be carried out, motility and the convenience of operation of testing the speed improve.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, by the specific embodiment of the present invention is described in detail, technical scheme and other beneficial effect will be made apparent.
Fig. 1 is the schematic flow sheet of the speed-measuring method based on terminal that first embodiment of the invention provides；
The schematic flow sheet of the speed-measuring method based on terminal that Fig. 2 a provides for second embodiment of the invention；
The terminal structure schematic diagram that Fig. 2 b provides for second embodiment of the invention；
The structural representation of the speed measuring device based on terminal that Fig. 3 a provides for third embodiment of the invention；
Another structural representation of the speed measuring device based on terminal that Fig. 3 b provides for third embodiment of the invention.
Detailed description of the invention
Refer to graphic, wherein identical element numbers represents identical assembly, and principles of the invention is to be implemented in a suitable computing environment to illustrate.The following description is based on the illustrated specific embodiment of the invention, and it is not construed as other specific embodiment that the restriction present invention is not detailed herein.
In the following description, reference step performed by or multi-section computer and symbol are illustrated by specific embodiments of the invention, unless otherwise stating clearly.Therefore, these steps and operation will have to mention for several times and be performed by computer, and computer as referred to herein execution includes the operation of the computer processing unit by the electronic signal represented with the data in a structuring pattern.This operation change these data or be maintained at the memory system of this computer in position, its reconfigurable or additionally known by by this area tester in the way of change the running of this computer.The data structure that these data maintain is the provider location of this internal memory, and it has the particular characteristics defined by this data form.But, the principle of the invention illustrates with above-mentioned word, and it is not represented as a kind of restriction, and this area tester will appreciate that the plurality of step of the following stated and operation also may be implemented in the middle of hardware.
Term as used herein " module " can regard the software object as performing on this arithmetic system as.Different assembly as herein described, module, engine and service can be regarded as the objective for implementation on this arithmetic system.And device and method as herein described is preferably carried out in the way of software, certainly also can be carried out on hardware, all within scope.
To be described in detail respectively below.
First embodiment
In the present embodiment, angle from the speed measuring device based on terminal is described, specifically can should being integrated in terminal based on the speed measuring device of terminal, this terminal can be that mobile phone, panel computer etc. have memory element and be provided with microprocessor and have the terminating machine of operational capability.
A kind of speed-measuring method based on terminal, including: when terminal receives and tests the speed triggering command, according to this triggering command that tests the speed, control to start the default distance measuring sensor being arranged in terminal；The first transmitting signal is sent to object to be measured by default distance measuring sensor；When terminal receives and tests the speed halt instruction, send the second transmitting signal by default distance measuring sensor to object to be measured；Launch signal and second based on first and launch signal, the translational speed of object to be measured is measured.
Refer to the schematic flow sheet that Fig. 1, Fig. 1 are the speed-measuring methods based on terminal that first embodiment of the invention provides.Described method includes:
In step S101, when terminal receives and tests the speed triggering command, according to this triggering command that tests the speed, control to start the default distance measuring sensor being arranged in terminal.
In step s 102, the first transmitting signal is sent by default distance measuring sensor to object to be measured.
In step s 103, when terminal receives and tests the speed halt instruction, send the second transmitting signal by default distance measuring sensor to object to be measured.
Wherein, described step S101 to step S103 can particularly as follows:
In embodiments of the present invention, terminal specifically mobile phone, panel computer etc. can have memory element and be provided with microprocessor and have the terminating machine of operational capability；Wherein, this terminal is provided with distance measuring sensor, detects for the distance that object to be measured is moved.
It is understood that this default distance measuring sensor can specifically light wave sensor (such as laser sensor, infrared sensor) and ultrasonic sensor etc., be not especially limited herein.
Can be concrete, such as, receive, in terminal, the triggering command that tests the speed, when namely user is triggered by terminal and opens distance measuring sensor, send the first control signal to this distance measuring sensor, to control to send the first transmitting signal by default distance measuring sensor to object to be measured.
Further, pass through preset distance measuring sensor to object to be measured send first transmitting signal after, it is also possible to including:
Step S1021, obtain this and first launch signal and send to the first reflected signal returned after object to be measured.
Step S1022, first launch signal and this first reflected signal based on this, it is determined that very first time information.
It is to say, distance measuring sensor sends the first transmitting signal to object to be measured, first launches the first reflected signal that can receive return after signal runs into object to be measured, such that it is able to launch signal and the first reflected signal according to first, it is determined that go out very first time information.
It is understandable that, at object to be measured in the process of movement, when receiving, in terminal, halt instruction of testing the speed, such as, when user closes distance measuring sensor by terminal, the second control signal is sent, to control to send the second transmitting signal by default distance measuring sensor to object to be measured to this distance measuring sensor；Again such as, at predetermined intervals, the second control signal is sent to distance measuring sensor, to control to send the second transmitting signal by default distance measuring sensor to object to be measured, such that it is able to according to twice emitting detected speed signal.
Further, by default distance measuring sensor to object to be measured send second transmitting signal after, it is also possible to including:
Step S1031, obtain this and second launch signal and send to the second reflected signal returned after object to be measured；
Step S1032, second launch signal and this second reflected signal based on this, it is determined that the second temporal information.
It is to say, distance measuring sensor sends the second transmitting signal to object to be measured, second launches the second reflected signal that can receive return after signal runs into object to be measured, such that it is able to launch signal and the second reflected signal according to second, it is determined that go out the second temporal information.
It is contemplated that " first ", " second " in the embodiment of the present invention is only for additional symbols, do not constitute restriction of the invention process.
In step S104, launch signal and second based on first and launch signal, the translational speed of object to be measured is measured.
It is understood that launch signal launching signal and second based on first, before the translational speed measurement to object to be measured, it is also possible to including:
Record and send the first transmitting signal to object to be measured and send the time difference of the second transmitting signal to object to be measured.
Such as, when terminal sends the first transmitting signal, record current time is T1, and when terminal sends the second transmitting signal, record current time is T2, thus calculating time difference according to T1 and T2, wherein this time difference may be considered the time that terminal moves.
In some embodiments, it is also possible to receive the temporal information of the first reflected signal and the second reflected signal returned according to terminal, determine time difference.
In the present embodiment, launch signal and second based on first and launch signal, the translational speed of object to be measured is measured and can specifically include:
Step S1041, based on this very first time information and this second temporal information, it is determined that the displacement of object to be measured.
Step S1042, according to displacement and time difference, the translational speed of object to be measured is measured.
Such as, default tachogenerator can be specially light wave sensor, owing to being light wave transmissions, and therefore can according to the light velocity, very first time information and the second temporal information, it is determined that go out the displacement of object to be measured.
Further, it is possible to according to displacement and time difference, estimate the average translational speed of object to be measured, it is clear that the time of time difference is more little, it is possible to make the instantaneous velocity of object to be measured calculated more accurate.
Additionally, it is preferred that, when terminal receives and tests the speed halt instruction, it is possible to according to this halt instruction of testing the speed, control to close in time to preset distance measuring sensor, such that it is able to make terminal reach the effect of continuation of the journey.
From the foregoing, the speed-measuring method based on terminal that the present embodiment provides, first, when terminal receives and tests the speed triggering command, control to start the default distance measuring sensor being arranged in terminal, and send the first transmitting signal by this distance measuring sensor to object to be measured；Then, in the process that terminal moves, when terminal receives and tests the speed halt instruction, send the second transmitting signal by this distance measuring sensor to object to be measured, finally launch signal in conjunction with the first transmitting signal and second, the translational speed of object to be measured is measured；Namely the embodiment of the present invention directly arranges distance measuring sensor in terminal, when object starts move and stop mobile, send transmitting signal respectively through this distance measuring sensor to position, thus when terminal is static, mobile object outside terminal tachometric survey be can also be carried out, motility and the convenience of operation of testing the speed improve.
Second embodiment
Method described by first embodiment, is described in further detail citing below.
The schematic flow sheet of Fig. 2 a, Fig. 2 a speed-measuring method based on terminal provided for second embodiment of the invention is provided.In this embodiment, being mobile phone for terminal, it is provided that the method that mobile object is tested the speed by mobile phone, wherein, the method step includes:
In step s 201, mobile phone receives when testing the speed triggering command, controls to start the laser sensor being arranged on mobile phone.
It is understandable that, development along with semiconductor technology, the scheme of laser sensor is also more and more applied in electronic product, wherein more ripe is gallium arsenide laser, be characterized as being efficiency height, volume is little, lightweight, simple in construction, output are less, and therefore distance measuring sensor of the present invention can be preferably gallium arsenide laser.
Preferably, the present embodiment considers the scene that mobile phone is found range, generating laser end is designed at cell rear cover face or side (demands according to different), can in the lump with reference to Fig. 2 b, for the laser sensor on mobile phone, schematic diagram is set, as, it is possible to arranging laser beam drilling region in battery of mobile phone bonnet upper end, such people can conveniently operate when speed of moving body is tested.
In step S202, mobile phone by this laser sensor to object emission the first pulse to be measured.
In step S203, mobile phone receives the reflection laser of the first pulse, and the time that records is t1.
In step S204, through Preset Time Δ t, mobile phone by this laser sensor to object emission the second pulse to be measured.
In step S205, mobile phone receives the reflection laser of the second pulse, and the time that records is t2.
In step S206, mobile phone is according to t1 and t2, it is determined that corresponding distance S.
In step S207, the speed of object to be measured, according to Preset Time Δ t and distance S, is measured by mobile phone.
Wherein, described step S202 to step S207 can particularly as follows:
Such as, during laser sensor work, first being directed at target object (i.e. object to be measured) by laser emitting diode launches laser pulse, returning to laser sensor receiving terminal when laser pulse runs into target object, now laser sensor can calculate laser from being transmitted into the time that reception is returned.Owing to the light velocity is very fast, the light velocity is about c=3*10^8m/s, therefore can go out the distance of the relative test point of target object by real-time testing.
Further, speed calculation method can be specific as follows:
(1) when starting test speed, laser transmitter projects first time pulse (i.e. the first pulse), after laser sensor receives reflection laser, the record time is t1；
(2) elapsed time Δ t (such as 1s etc.), laser transmitter projects second time pulse (i.e. the second pulse), after laser sensor receives reflection laser, the record time is t2；
(3) due to light velocity propagation, twice time plus record is t1, t2, therefore can learn distance S=(c*t2-c*t1)/2 corresponding to twice time, the time difference simultaneously learning this segment distance is Δ t, is therefore appreciated that the average speed in the Δ t time.
It is understood that in the present embodiment, it is assumed that the Δ t time is more little, then the speed (i.e. instantaneous velocity) arrived calculated is more accurate；In this embodiment, Δ t can pre-set, thus the pulse signal calculating according to twice emitting obtains translational speed, in certain embodiments, the pulse signal launched can also be set by user, namely when starting move and stop mobile, controls laser transmitter projects pulse signal respectively, same, calculate according to the pulse signal of twice emitting and obtain translational speed.
Additionally it is contemplated that, in the embodiment of the present invention, laser sensor can also be other kinds of sensor, if other light wave sensors such as infrared grade, then can be calculated according to above-mentioned computational methods, if sonic sensors such as ultrasound wave, then can calculate displacement according to the transmission speed of sound wave, thus calculating speed etc., it is not especially limited herein.
From the foregoing, the speed-measuring method based on terminal that the present embodiment provides, first, when terminal receives and tests the speed triggering command, control to start the default distance measuring sensor being arranged in terminal, and send the first transmitting signal by this distance measuring sensor to object to be measured；Then, in the process that terminal moves, when terminal receives and tests the speed halt instruction, send the second transmitting signal by this distance measuring sensor to object to be measured, finally launch signal in conjunction with the first transmitting signal and second, the translational speed of object to be measured is measured；Namely the embodiment of the present invention directly arranges distance measuring sensor in terminal, when object starts move and stop mobile, send transmitting signal respectively through this distance measuring sensor to position, thus when terminal is static, mobile object outside terminal tachometric survey be can also be carried out, motility and the convenience of operation of testing the speed improve.
3rd embodiment
For ease of better implementing the speed-measuring method based on terminal that the embodiment of the present invention provides, the embodiment of the present invention also provides for a kind of device based on the above-mentioned speed-measuring method based on terminal.Wherein the implication of noun is with above-mentioned based on identical in the method tested the speed of terminal, implements the explanation that details is referred in embodiment of the method.
Refer to Fig. 3 a, the structural representation of the speed measuring device based on terminal that Fig. 3 a provides for the embodiment of the present invention, the wherein said speed measuring device based on terminal can include control unit the 301, first transmitting element the 302, second transmitting element 303 and the unit 304 that tests the speed.
Wherein control unit 301, for when terminal receives and tests the speed triggering command, according to the described triggering command that tests the speed, control to start the default distance measuring sensor being arranged in terminal；First transmitting element 302, for sending the first transmitting signal by described default distance measuring sensor to object to be measured.
Second transmitting element 303, for when described terminal receives and tests the speed halt instruction, sending the second transmitting signal by described default distance measuring sensor to described object to be measured；Test the speed unit 304, launches signal for launching signal and described second based on described first, the translational speed of described object to be measured is measured.
In embodiments of the present invention, terminal specifically mobile phone, panel computer etc. can have memory element and be provided with microprocessor and have the terminating machine of operational capability；Wherein, this terminal is provided with distance measuring sensor, detects for the distance that object to be measured is moved.
It is understood that this default distance measuring sensor can specifically light wave sensor (such as laser sensor, infrared sensor) and ultrasonic sensor etc., be not especially limited herein.
Can be concrete, such as, receive, in terminal, the triggering command that tests the speed, when namely user is triggered by terminal and opens distance measuring sensor, send the first control signal to this distance measuring sensor, to control to send the first transmitting signal by default distance measuring sensor to object to be measured.
Further, can in the lump with reference to Fig. 3 b, for another structural representation of the speed measuring device based on terminal that third embodiment of the invention provides, being wherein somebody's turn to do the speed measuring device based on terminal can also include:
First acquiring unit 305, sends, for obtaining described first transmitting signal, the first reflected signal returned to object to be measured；First determines unit 306, for launching signal and described first reflected signal based on described first, it is determined that very first time information.
It is to say, distance measuring sensor sends the first transmitting signal to object to be measured, first launches the first reflected signal that can receive return after signal runs into object to be measured, such that it is able to launch signal and the first reflected signal according to first, it is determined that go out very first time information.
It is understandable that, at object to be measured in the process of movement, when receiving, in terminal, halt instruction of testing the speed, namely when user closes distance measuring sensor by terminal, the second control signal is sent, to control to send the second transmitting signal by default distance measuring sensor to object to be measured to this distance measuring sensor.
Further, the described speed measuring device based on terminal can also include:
Second acquisition unit 307, sends, for obtaining described second transmitting signal, the second reflected signal returned to object to be measured；Second determines unit 308, for launching signal and described second reflected signal based on described second, it is determined that the second temporal information.
It is to say, distance measuring sensor sends the second transmitting signal to object to be measured, second launches the second reflected signal that can receive return after signal runs into object to be measured, such that it is able to launch signal and the second reflected signal according to second, it is determined that go out the second temporal information.
It is contemplated that " first ", " second " in the embodiment of the present invention is only for additional symbols, do not constitute restriction of the invention process.
It is understood that the described speed measuring device based on terminal can also include:
Record unit 309, sends the first transmitting signal to object to be measured for recording and sends the time difference of the second transmitting signal to object to be measured.
Such as, when terminal sends the first transmitting signal, record current time is T1, and when terminal sends the second transmitting signal, record current time is T2, thus calculating time difference according to T1 and T2, wherein this time difference may be considered the time that terminal moves.
In some embodiments, it is also possible to receive the temporal information of the first reflected signal and the second reflected signal returned according to terminal, determine time difference.
In the present embodiment, the unit 304 that tests the speed described in can specifically include:
Distance determines subelement, for based on described very first time information and described second temporal information, it is determined that the displacement of described object to be measured；Tachometric survey subelement, for according to described displacement and described time difference, measuring the translational speed of described object to be measured.
Such as, default tachogenerator can be specially light wave sensor, owing to being light wave transmissions, and therefore can according to the light velocity, very first time information and the second temporal information, it is determined that go out the displacement of object to be measured.
Further, it is possible to according to displacement and time difference, estimate the average translational speed of object to be measured, it is clear that the time of time difference is more little, it is possible to make the instantaneous velocity of object to be measured calculated more accurate.
Additionally, it is preferred that, described control unit 301, it is also possible to halt instruction of testing the speed described in basis, control to close described default distance measuring sensor, such that it is able to make terminal reach the effect of continuation of the journey.
When being embodied as, above unit can realize as independent entity, it is also possible to carries out combination in any, realizes as same or several entities, and being embodied as of above unit referring to embodiment of the method above, can not repeat them here.
Specifically can should being integrated in terminal based on the speed measuring device of terminal, this terminal can be that mobile phone, panel computer etc. have memory element and be provided with microprocessor and have the terminating machine of operational capability.
From the foregoing, the speed measuring device based on terminal that the present embodiment provides, first, when terminal receives and tests the speed triggering command, control to start the default distance measuring sensor being arranged in terminal, and send the first transmitting signal by this distance measuring sensor to object to be measured；Then, in the process that terminal moves, when terminal receives and tests the speed halt instruction, send the second transmitting signal by this distance measuring sensor to object to be measured, finally launch signal in conjunction with the first transmitting signal and second, the translational speed of object to be measured is measured；Namely the embodiment of the present invention directly arranges distance measuring sensor in terminal, when object starts move and stop mobile, send transmitting signal respectively through this distance measuring sensor to position, thus when terminal is static, mobile object outside terminal tachometric survey be can also be carried out, motility and the convenience of operation of testing the speed improve.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, certain embodiment there is no the part described in detail, it is possible to referring to the detailed description above with respect to the speed-measuring method based on terminal, repeat no more herein.
The described speed measuring device based on terminal that the embodiment of the present invention provides, such as computer, panel computer, the mobile phone with touch function etc., the described speed measuring device based on terminal belongs to same design with the speed-measuring method based on terminal in foregoing embodiments, described based on the speed measuring device of terminal can run described based on the speed-measuring method embodiment of terminal in the either method that provides, it implements process and refers to the described speed-measuring method embodiment based on terminal, repeats no more herein.
It should be noted that, for the speed-measuring method based on terminal of the present invention, this area common test personnel are appreciated that all or part of flow process realizing described in the embodiment of the present invention speed-measuring method based on terminal, can be by the hardware that computer program controls to be correlated with to complete, described computer program can be stored in a computer read/write memory medium, as being stored in the memorizer of terminal, and performed by least one processor in this terminal, the flow process of embodiment such as the described speed-measuring method based on terminal can be included in the process of implementation.Wherein, described storage medium can be magnetic disc, CD, read only memory (ROM, ReadOnlyMemory), random access memory (RAM, RandomAccessMemory) etc..
For speed measuring device based on terminal described in the embodiment of the present invention, its each functional module can be integrated in one and process in chip, it is also possible to be that modules is individually physically present, it is also possible to two or more modules are integrated in a module.Above-mentioned integrated module both can adopt the form of hardware to realize, it would however also be possible to employ the form of software function module realizes.If described integrated module is using the form realization of software function module and as independent production marketing or use, it is also possible to being stored in a computer read/write memory medium, described storage medium is such as read only memory, disk or CD etc..
A kind of speed-measuring method based on the terminal above embodiment of the present invention provided and device are described in detail, principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Simultaneously for those skilled in the art, according to the thought of the present invention, all will change in specific embodiments and applications, in sum, this specification content should not be construed as limitation of the present invention.
Claims (10)
1. the speed-measuring method based on terminal, it is characterised in that including:
When terminal receives and tests the speed triggering command, according to the described triggering command that tests the speed, control to start the default distance measuring sensor being arranged in terminal；
The first transmitting signal is sent to object to be measured by described default distance measuring sensor；
When described terminal receives and tests the speed halt instruction, send the second transmitting signal by described default distance measuring sensor to described object to be measured；
Launch signal and described second based on described first and launch signal, the translational speed of described object to be measured is measured.
2. the speed-measuring method based on terminal according to claim 1, it is characterised in that described by described default distance measuring sensor to object to be measured send first transmitting signal after, also include:
Obtain described first and launch the first reflected signal that signal transmission returns to object to be measured；
Signal and described first reflected signal is launched, it is determined that very first time information based on described first；
Described by described default distance measuring sensor to described object to be measured send second transmitting signal after, also include:
Obtain described second and launch the second reflected signal that signal transmission returns to object to be measured；
Signal and described second reflected signal is launched, it is determined that the second temporal information based on described second.
3. the speed-measuring method based on terminal according to claim 2, it is characterised in that described launch signal and described second based on described first and launch signal, before the translational speed of described object to be measured is measured, also includes:
Record and send the first transmitting signal to object to be measured and send the time difference of the second transmitting signal to object to be measured.
4. the speed-measuring method based on terminal according to claim 3, it is characterised in that described based on described first launch signal and described second launch signal, the translational speed of described object to be measured is measured, including:
Based on described very first time information and described second temporal information, it is determined that the displacement of described object to be measured；
According to described displacement and described time difference, the translational speed of described object to be measured is measured.
5. the speed-measuring method based on terminal according to claim 1, it is characterised in that described by described default distance measuring sensor to described object to be measured send second transmitting signal after, also include:
According to described halt instruction of testing the speed, control to close described default distance measuring sensor.
6. the speed measuring device based on terminal, it is characterised in that including:
Control unit, for when terminal receives and tests the speed triggering command, according to the described triggering command that tests the speed, controls to start the default distance measuring sensor being arranged in terminal；
First transmitting element, for sending the first transmitting signal by described default distance measuring sensor to object to be measured；
Second transmitting element, for when described terminal receives and tests the speed halt instruction, sending the second transmitting signal by described default distance measuring sensor to described object to be measured；
Test the speed unit, launches signal for launching signal and described second based on described first, the translational speed of described object to be measured is measured.
7. the speed measuring device based on terminal according to claim 6, it is characterised in that described device also includes:
First acquiring unit, sends, for obtaining described first transmitting signal, the first reflected signal returned to object to be measured；
First determines unit, for launching signal and described first reflected signal based on described first, it is determined that very first time information；
Second acquisition unit, sends, for obtaining described second transmitting signal, the second reflected signal returned to object to be measured；
Second determines unit, for launching signal and described second reflected signal based on described second, it is determined that the second temporal information.
8. the speed measuring device based on terminal according to claim 7, it is characterised in that described device also includes:
Record unit, sends the first transmitting signal to object to be measured for recording and sends the time difference of the second transmitting signal to object to be measured.
9. the speed measuring device based on terminal according to claim 8, it is characterised in that described in the unit that tests the speed include:
Distance determines subelement, for based on described very first time information and described second temporal information, it is determined that the displacement of described object to be measured；
Tachometric survey subelement, for according to described displacement and described time difference, measuring the translational speed of described object to be measured.
10. the speed measuring device based on terminal according to claim 6, it is characterised in that described control unit, be additionally operable to according to described in test the speed halt instruction, control to close described default distance measuring sensor.
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| CN201610133283.6A CN105738645A (en) | 2016-03-09 | 2016-03-09 | Velocity measurement method and device based on terminal |
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| CN201610133283.6A Pending CN105738645A (en) | 2016-03-09 | 2016-03-09 | Velocity measurement method and device based on terminal |
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| CN110320524A (en) * | 2018-03-28 | 2019-10-11 | 北醒（北京）光子科技有限公司 | More optical range finding apparatus collaboration distance measuring methods of one kind and system |
| WO2023024944A1 (en) * | 2021-08-23 | 2023-03-02 | 华为技术有限公司 | Speed measurement method and electronic devices |
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