CN105726061B - A kind of method extending probe cruising ability and the probe using this method - Google Patents
A kind of method extending probe cruising ability and the probe using this method Download PDFInfo
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- CN105726061B CN105726061B CN201610074847.3A CN201610074847A CN105726061B CN 105726061 B CN105726061 B CN 105726061B CN 201610074847 A CN201610074847 A CN 201610074847A CN 105726061 B CN105726061 B CN 105726061B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/44—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device
- A61B8/4444—Constructional features of the ultrasonic, sonic or infrasonic diagnostic device related to the probe
- A61B8/4472—Wireless probes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0866—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0883—Detecting organic movements or changes, e.g. tumours, cysts, swellings for diagnosis of the heart
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Abstract
The invention discloses a kind of method for extending probe cruising ability and using the probe of this method, this method includes after wireless ultrasound probe starts, the frequency of processing unit is adjusted to standby frequency, the step of ultrasonic signal of ultrasound emission unit transmitting fixed frequency, echo signal reception unit receives echo-signal；And when judging that the echo-signal reaches the unlatching threshold value, then the wireless ultrasound probe enters operating mode, adjusts the step of frequency is general work frequency；This method can adjust the working frequency of processing unit according to corresponding working condition, reduce consumption of the processing unit to electric energy, and then extend the effect of wireless ultrasound probe working time；Also had the advantages that using the wireless ultrasound probe of this method same.
Description
Technical field
The present invention relates to embedded medical treatment electronic equipment field more particularly to it is a kind of extend probe cruising ability method and
Use the probe of this method.
Background technique
The embedded medical treatment electronic equipment that diasonograph is guarded as mother's fetal heart frequency, passes through principle of Doppler
It acquires ultrasonic echo frequency offset signal and calculates fetal heart frequency, ultrasonic probe is one of the key fitment of diasonograph, ultrasonic probe
In addition to wired mode can be used to can also be used as 103096808 B of Chinese invention patent Authorization Notice No. CN are entitled
The probe of the wireless mode connection used disclosed in ultrasonic equipment for medical diagnosis.
Wireless communication allows pregnant woman to get rid of the constraint of wired ultrasonic probe, freely lives in fetal heart frequency monitoring process
Dynamic, the cruise duration that uses of wireless probe is the most basic clinical requirement of fetal heart frequency monitoring, and the length of battery durable ability
Doctors and nurses and pregnant woman are directly influenced to the usage experience of wireless ultrasound probe.Pregnant woman is supervising from first stage of labor to second stage of labor
The time of nearly ten hours will be used continuously in wireless ultrasound probe during shield.
But in actual wireless ultrasound probe design process, due to wireless probe considering at portable aspect, to its sky
Between and overall weight it is all restricted, there are strict requirements in the space and the own wt of battery that can be provided to battery.Therefore exist
Under actual clinical application background, when how to improve the use of wireless ultrasound probe to greatest extent in limited battery capacity
Between, there is great clinical meaning to wireless probe practical application.
The time used of existing wireless ultrasound probe is limited by the capacity of battery, if wireless probe is worked
Internal each section circuit is in working condition in journey, and wherein current drain is very in radio circuit emission process for wireless data
Greatly, ultrasonic probe is also at higher-wattage during ultrasound emission, therefore the cruising ability of current wireless probe is general.When pregnant
Woman uses the overlong time of wireless probe, or battery capacity is not full of probe in use, will be occurred in fetus
With changing the thing of probe in heart rate monitoring process.In this case it is necessary to restart other wireless probes, setting probe is tied up
Settled preceding pregnant woman repeats the work such as setting to probe, can not improve working efficiency and improve clinical use experience.
In conclusion existing wireless ultrasound probe does not have the method that intelligence extends cruising ability also, can not also solve
The problem of improving battery durable ability to greatest extent under the premise of probe battery capacity is limited.
Therefore, design one kind have intelligence extend cruising ability wireless ultrasound probe be necessary.
Summary of the invention
In order to solve the above technical problems existing in the prior art, the purpose of the present invention is to provide a kind of long continuation of the journey energy
The wireless ultrasound probe of power.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is as follows:
A method of extending probe cruising ability, further comprising the steps of:
S1. wireless ultrasound probe starts, and ultrasound emission unit emits the ultrasonic signal of fixed frequency；Echo signal reception
Unit receives corresponding echo-signal；According to the judgement of the echo signal intensity or scheduled operating time, described in adjusting
The working condition of one of ultrasound emission unit, the echo signal reception unit, processing unit or any combination.
Further, following steps are also executed after the step s1:
S2. the frequency of the processing unit is adjusted to standby frequency and judges that the echo-signal reaches unlatching threshold value
When, then the wireless ultrasound probe enters operating mode, and the frequency for adjusting the processing unit is general work frequency；If described
When echo-signal is not up to the unlatching threshold value, then the wireless ultrasound probe enters standby mode, by the standby predetermined time
Afterwards, it rejudges.
Further, further comprising the steps of after the step s1:
S4. after the processing unit acquisition frequency offset signal reaches the acquisition predetermined time, the frequency of the processing unit is adjusted
To calculate working frequency；After the processing unit calculates Fetal Heart Rate according to the frequency offset signal, it is general for adjusting the frequency
Working frequency.
Further, further comprising the steps of before the step s4；
S3. emit ultrasonic signal and receive the echo-signal；It is demodulated into after amplifying filtering to the echo-signal
The frequency offset signal.
Another step, after the step s4 also successively the following steps are included:
S5. central station is sent by the Fetal Heart Rate, judges whether to continue to monitor fetal heart rate signal, if so, entering step s3；
If it is not, then closing the wireless ultrasound probe.
As an improvement the step s1 also specifically comprises the following steps:
S11. the ultrasonic signal of the ultrasound emission unit transmitting fixed frequency is opened；
Open the echo signal reception unit receives echo-signal；
S12. when the echo-signal reaches unlatching threshold value, the echo signal reception unit is closed；
When the echo-signal is not up to the unlatching threshold value, closes the ultrasound emission unit and the echo-signal connects
It receives unit and enters step s11 after the standby predetermined time.
Furthermore in the step s12, when judging that the echo-signal reaches the unlatching threshold value, close the echo
Signal receiving unit, and execute following sequential steps:
A. the ultrasound emission unit continue emit ultrasonic signal stop when reaching the maximum penetration time of ultrasonic signal
The only ultrasound emission unit；
When b. reaching the minimal reflection time of ultrasonic signal, starts the echo signal reception unit, receive the echo
Signal；
C. starting pretreatment unit is amplified and is filtered to the echo-signal, and starting demodulator circuit unit described will return
The demodulation of wave signal is filtered into frequency offset signal, then stores into sampling hold circuit；
D. the echo signal reception unit, the pretreatment unit, the demodulator circuit unit are closed；
E. start echo wave signal acquisition unit, acquire the frequency offset signal and be sent to the processing unit；After the completion of acquisition,
Close the echo wave signal acquisition unit.
Further, after the step e, following steps are executed:
F. starting computing module calculates Fetal Heart Rate according to the frequency offset signal；The calculating mould is closed after the completion of calculating
Block；
G. start wireless communication unit, send central station for the Fetal Heart Rate；It completes to close the nothing after data are sent
Line communication unit；
H. start the ultrasonic signal that the ultrasound emission unit emits fixed frequency again；The echo signal reception list
Member receives the echo-signal；
I. judge whether the echo-signal reaches the unlatching threshold value；
If the echo-signal reaches the unlatching threshold value, a is entered step, continues the monitoring of fetal heart rate signal；If
The echo-signal is not up to the unlatching threshold value, then closes the wireless ultrasound probe.
In order to solve the above-mentioned technical problem, the technical solution that the present invention also uses extends the wireless super of cruising ability to be a kind of
Sonic probe, comprising:
Ultrasound emission unit is used for the controllable ultrasonic signal of tranmitting frequency；
Echo signal reception unit is used for receives echo-signal；
Processing unit, the processing unit are provided with the control for controlling each functional unit work in the wireless ultrasound probe
Molding block, and the computing module of output Fetal Heart Rate after calculation processing is carried out to the echo-signal；
Storage unit, for storing pre-set predetermined value；
The processing unit is additionally provided with:
Judgment module, for judging whether the echo-signal reaches the unlatching threshold value or judge the ultrasonic probe
Whether run scheduled operating time；
Frequency adjustment module, for adjusting the ultrasound emission unit, the echo according to the judging result of judgment module
The working condition of one of signal receiving unit, processing unit or any combination.
Further, the wireless ultrasound probe further include:
Pretreatment unit is provided with echo-signal amplifying circuit, for amplifying the echo-signal received；It also sets up
There is filter circuit, be electrically connected respectively with the echo signal reception unit, the control module, for filtering out described after amplification return
The noise of wave signal；
Demodulator circuit unit is electrically connected with the pretreatment unit, the computing module, the control module respectively, is used
In the filtered echo-signal is demodulated into frequency offset signal, it is sent to computing module；
Wireless communication unit is electrically connected with the processing unit, and for being wirelessly connected with central station, it is single to transmit the processing
The calculated result of member；
The echo signal reception unit is additionally provided with sampling hold circuit, for storing the frequency offset signal；
The wireless ultrasound probe further includes echo wave signal acquisition unit, keeps electricity with the control module, the sampling
Road is electrically connected, for acquiring the frequency offset signal in the sampling hold circuit；
The processing unit is additionally provided with: timing module, for timing and assists the control module work；
The computing module is also used to calculate the frequency, phase and intensity of the echo-signal；
The ultrasound emission unit is additionally provided with power amplification circuit；For promoting the transmitting function of the ultrasound emission unit
Rate.
Compared with prior art, method of the invention has the advantages that the basis after wireless ultrasound probe starting
Operating time judgement to the echo-signal or probe received, adjusts the working frequency of corresponding functional unit, avoids wirelessly super
Sonic probe is constantly in the high-frequency working condition of power consumption, while reducing calorific value, also reduces electric energy loss, Jin Erda
To the purpose for extending cruise duration.
In order to reach superior technique effect, methods and apparatus of the present invention can also be opened according to the working condition of probe or
Corresponding functional unit is closed, unnecessary energy consumption is further reduced, to extend the working time of wireless ultrasound probe and continue
Boat ability improves the usage experience of wireless ultrasound probe.
Detailed description of the invention
Fig. 1 is a kind of flow chart of method basic step for extending probe cruising ability；
Fig. 2 is that the flow chart controlled frequency is improved on the basis of Fig. 1；
Fig. 3 is on the basis of Fig. 1 using the flow chart controlled each functional unit；
Fig. 4 is the method flow diagram of collective frequency control and functional unit start-up and shut-down control；
Fig. 5 is a kind of configuration diagram of the embodiment one of wireless ultrasound probe for extending cruising ability；
Fig. 6 is a kind of configuration diagram of the embodiment two of wireless ultrasound probe for extending cruising ability；
Fig. 7 is a kind of configuration diagram of the embodiment three of wireless ultrasound probe for extending cruising ability；
Fig. 8 is a kind of configuration diagram of the example IV of wireless ultrasound probe for extending cruising ability.
Specific embodiment
Below with reference to attached drawing 1-8, various embodiments of the present invention are further described in detail.
As shown in Fig. 1, above-mentioned extension probe cruising ability method, the step including predetermined value is arranged before promoter probe
Suddenly, which includes: the unlatching threshold value of echo-signal, standby predetermined time, the standby frequency for acquiring predetermined time, processing unit
Rate, general work frequency, the specific value for calculating working frequency etc.；It should be pointed out that standby frequency, general work frequency,
The frequency values for calculating working frequency successively rise, and energy consumption also successively improves accordingly.When the electric power starting of wireless ultrasound probe
Afterwards, further comprising the steps of:
S1. wireless ultrasound probe starts, and ultrasound emission unit emits the ultrasonic signal of fixed frequency；Echo signal reception
Unit receives echo-signal；According to the judgement of the echo signal intensity or scheduled operating time, the ultrasound hair is adjusted
Penetrate the working condition of one of unit, the echo signal reception unit, processing unit or any combination.
Step s1 judges according to the operating time to the echo-signal or probe received, adjusts the work of corresponding functional unit
Make state, can make each functional unit of wireless ultrasound probe while effectively work without being constantly in the high-frequency work of power consumption
Make state, such as: the adjusting of on and off is carried out to the working condition of transmitting unit and receiving unit, to the carry out frequency of processing unit
Promotion or reduced adjusting.In actual operation, probe can also be reduced when respective threshold is not achieved in echo signal intensity
Overall work frequency or will pop one's head in standby.For another example: processing unit can reduce when judging corresponding echo-signal works as
The working frequency of preceding ultrasound emission unit or by its temporary close.Hair can be reduced under the premise of not influencing to work normally
Heat, while electric energy loss is also reduced, and then achieve the purpose that extend cruise duration.
As shown in Fig. 2, energy-efficient method is carried out using frequency control, executes following steps:
When the frequency of the processing unit being s2. adjusted to standby frequency and judging that echo-signal reaches unlatching threshold value, then
Wireless ultrasound probe enters operating mode, and the frequency that frequency adjustment module adjusts processing unit is general work frequency；If echo
When signal not up to opens threshold value, then wireless ultrasound probe enters standby mode, after the standby predetermined time, rejudges.
The detailed process of step s2 are as follows: the frequency that frequency adjustment module adjusts processing unit is ultrasound hair after standby frequency
Penetrate unit emit in advance fixed frequency ultrasonic signal reflected after available corresponding echo-signal, due to ultrasound believe
Number acoustic impedance transmitted in couplant is different from the acoustic impedance transmitted in air, and it is also not identical to receive echo-signal.Nothing
When not coating couplant, the intensity of the echo-signal received can weaken much line ultrasonic probe.Computing unit is to echo
Its frequency and phase information of signal it can be concluded that ultrasound echo signal intensity value.Judgment module can according to the intensity value with
Preset unlatching threshold value is compared judgement, sees whether echo-signal reaches unlatching threshold value.
In the judgement of step s2, echo-signal reach open threshold value then mean probe had been coated with couplant or
Fetal Heart Rate range belongs in effective range, i.e., probe has been prepared for starting to carry out ultrasonic monitoring.Conversely, then probe does not have
The fetal heart rate signal quality or Fetal Heart Rate range for coating couplant or acquisition will not opened not in effective range
Beginning ultrasonic monitoring.Judge whether the received echo-signal of probe reaches by judgment module and opens threshold technology method, it can be very
Intuitively know whether probe enters working condition, and then reaches under the working condition that probe does not monitor fetal rhythm to greatest extent
Reduction processing unit frequency, reduce probe use power consumption, save wireless ultrasound probe battery capacity.
Probe, which has begun, after above-mentioned steps s2 carries out fetal rhythm monitoring, that is, enters operating mode, include the following steps；
S3. transmitting ultrasonic signal and receives echo-signal；Frequency offset signal is demodulated into after amplifying filtering to echo-signal.
It preferably, further include storing the frequency offset signal into sampling hold circuit.The preferred embodiment is for working as
It, can be in circuit low power dissipation design by the way of ultrasonic discontinuous transmission, but in discontinuous transmission when ultrasound emission power consumption is larger
Ultrasonic wave will cause ultrasound echo signal and receive interrupted phenomenon, (be sampled by sampling hold mode to hardware circuit design
Holding circuit) it can solve the problem.In specific implementation, filtered in the interrupted ultrasonic signal that the circuit of rear class keeps sampling
Wave compensation can be solved, and allow the time-sharing discontinuous transmitting ultrasonic signal of wireless probe, solve to emit function using continuous ultrasound
Consume higher problem.
Be when ultrasound emission it is interrupted, corresponding, reception when is also interrupted.Electricity is kept using sampling
Lu Hou, interrupted received signal are stored by sampling hold circuit, then keep interrupted to sampling by the circuit of rear class
Ultrasonic signal is filtered compensation and obtains continuous signal.Continuously emitting and receive compared with prior art, power consumption is smaller,
Cruise duration is longer.
As shown in Fig. 2, after s4. computing module acquisition frequency offset signal reaches the acquisition predetermined time, frequency adjustment module tune
The frequency for saving processing unit is to calculate working frequency；After computing module calculates Fetal Heart Rate according to frequency offset signal, frequency adjusts mould
The frequency that block adjusts processing unit is general work frequency；
After step s4 also successively the following steps are included:
S5. central station is sent by Fetal Heart Rate, judges whether to continue to monitor fetal heart rate signal, if so, entering step s3；If
It is no, then close the wireless ultrasound probe.
It is controlled using to each functional unit, reduces the embodiment of electric energy loss, step s1 also specifically includes following suitable
Sequence step controls its correlation module, further saves electricity, extends the cruising ability of probe:
S11. control module opens the ultrasonic signal of ultrasound emission unit transmitting fixed frequency；
Control module opens echo signal reception unit receives echo-signal；
S12. when echo-signal reaches unlatching threshold value, control module closes echo signal reception unit；
When echo-signal not up to opens threshold value, control module closes ultrasound emission unit and echo signal reception unit,
After the standby predetermined time, step s11 is reentered.
It should be pointed out that above-mentioned steps are work step the most basic, have centainly in the quality to echo-signal
It is required that when, corresponding processing unit can also be controlled, echo-signal is handled, such as corresponding control echo-signal amplification electricity
Road, power amplification circuit, pretreatment unit, start and stop of demodulator circuit unit etc..
As shown in Fig. 3, when functional module starts ultrasound detection, not all functional module requires to open always
It opens, the unlatching of unnecessary functional module is further reduced during ultrasound detection, can preferably save electric energy, extend
The cruise duration of wireless ultrasound module.
In the step s12, when judging that the echo-signal reaches the unlatching threshold value, closes the echo-signal and connect
Unit is received, and executes following sequential steps:
A. ultrasound emission unit continues to emit ultrasonic signal, and timing module starts timing, when timing reaches ultrasonic signal
When the maximum penetration time, control module stops ultrasound emission unit；It is ultrasonic before closing correlation module this is done to guarantee
Signal can reach detection site, such as the depth of heart of fetus, it is ensured that detection result it is accurate.
B. when timing reaches the minimal reflection time of ultrasonic signal, control module starts echo signal reception unit, connects
Receive the echo-signal that ultrasonic signal is reflected back and amplification；Since ultrasonic signal propagates needs centainly in skeleton tissue
Time, processor delay the minimal reflection time after start correlation module, the echo-signal the most suitable that can receive.
C. control module successively starts pretreatment unit, demodulator circuit unit amplifies echo-signal, filters and solves
It is adjusted to frequency offset signal, is then stored into sampling hold circuit；
D. control module closes echo signal reception unit, pretreatment unit, demodulator circuit unit；
E. control module starts echo wave signal acquisition unit, acquires the frequency offset signal in sampling hold circuit and is sent to place
Manage unit；After the completion of acquisition, echo wave signal acquisition unit is closed.
As shown in figure 3, being comprised the following sequential steps after step e:
G. control module starts wireless communication unit, sends central station for Fetal Heart Rate；It completes to close institute after data are sent
State wireless communication unit；
H. the ultrasonic signal of the ultrasonic transmitting of the transmitting unit again fixed frequency of control module starting；Echo signal reception list
First receives echo-signal；
I. judgment module reads echo-signal and is compared with threshold value is opened；
If the echo-signal reaches the unlatching threshold value, a is entered step, continues the monitoring of fetal heart rate signal；If
The echo-signal is not up to the unlatching threshold value, then closes the wireless ultrasound probe.
It should be pointed out that the foundation that step i is compared is, and if the detection of probe terminates, the coupling on probe
Agent can be erased, at this point, obtained echo-signal is necessarily unable to reach unlatching threshold value, probe can be closed voluntarily.Similarly, if
Detection needs to continue, and the echo-signal of couplant can be always maintained at the state for reaching and opening threshold value, i.e., probe needs to continue to monitor
Fetal heart rate signal.
Preferably, as shown in Fig. 4, after step e can with the following steps are included:
Judgment module reads execution time timing of the timing module to step a to step e, and when with Fetal Heart Rate minimum sample
Between be compared, if the timing of timing module is not up to Fetal Heart Rate minimum sampling time, a is entered step, if timing module
The timing reach Fetal Heart Rate minimum sampling time, then enter step s4.
The step is the sample time too short entire mistake that possibly can not cover heart rate in order to ensure the sampling of Fetal Heart Rate is accurate
Journey, this obtained information that samples is inaccurate.
It should be pointed out that the maximum penetration time is the maximum time value estimated according to the concrete condition of detection site.
The minimal reflection time be according between fetus and ultrasonic probe approximate distance and supersonic frequency in skeletal tissue
The speed of propagation, the formation echo-signal time is averaged to count the time obtained after calculating repeated ultrasonic signal is reflected.
Fetal Heart Rate minimum sampling time is can to obtain complete Fetal Heart Rate according to the determination of complete Fetal Heart Rate map period
Minimum time value.
It can be according to the difference of monitoring object, most using preset in advance maximum penetration time, minimal reflection time, Fetal Heart Rate
Small sample time can be provided with corresponding time value according to corresponding monitoring object in timing unit.
As shown in Fig. 4, it is carried out in energy-efficient method to frequency control, in order to further reduce unnecessary electricity
Loss, the present invention also can also open accordingly each functional unit using while reducing processing unit frequency in due course
Stop controlling.Incoherent functional unit is stopped in due course, saves more electric energy to extend cruise duration.
Such as execute step s1 in also simultaneously step s11 and step s12.And in the execution that step s3 is refined as to sequence
Step a, step b, step c, step d, step e.
Further, step s5 can also be refined as to step g, the step h, step i that sequence executes.
It can according to actual needs, by two different energy-saving schemes by carrying out coordinated with each other be used cooperatively in various degree.
In this way, more efficiently electricity can be saved for wireless ultrasound probe, further extend its cruise duration.
A kind of wireless ultrasound probe using above-mentioned power-economizing method, as shown in Fig. 5, comprising: electric respectively with processing unit
The ultrasound emission unit and echo signal reception unit of connection.
Ultrasound emission unit emits for converting electrical energy into ultrasonic wave to detected object, and passes through control ultrasound
The tranmitting frequency of the oscillation frequency control ultrasonic wave of chip.
Echo signal reception unit, for receiving from the reflected echo-signal of detected object；
Processing unit, including control module and computing module, for controlling each functional module work in wireless ultrasound probe
And Fetal Heart Rate is exported after carrying out calculation processing to the received echo-signal of echo signal reception module.Computing unit further includes pair
Its frequency of echo-signal and the calculating of phase information, it can be deduced that the intensity value of ultrasound echo signal.
Storage unit, for storing pre-set predetermined value.
The processing unit is additionally provided with judgment module and frequency adjustment module.
Judgment module, for storing preset unlatching threshold value and judging whether echo-signal reaches unlatching threshold value；The unlatching
The ultrasonic wave that threshold value is set as probe transmitting is applied on the echo-signal of the couplant reflection on probe, in the given time institute
Attainable strength range.When echo-signal reaches the unlatching threshold value, probe is i.e. it is believed that smeared couplant,
Start to carry out supersonic sounding to detected object.When echo-signal is not up to the unlatching threshold value, probe is thought not smear coupling
Mixture, i.e. supersonic sounding are still beginning.
Whether the judgement whether frequency adjustment module smears couplant according to judgment module, i.e. echo-signal reach unlatching
Threshold value to adjust the working frequency of processing unit, and adjusts ultrasound emission unit, echo signal reception unit, processing unit
One of or any combination working condition.Processing unit is avoided to use excessively high frequency in not formal detection, with
As for waste electric energy.
Embodiment two as shown in Fig. 6, carries out perfect on the basis of example 1, and processing unit is additionally provided with:
The timing module being electrically connected with control module.
Timing module, when for carrying out necessary timing when emitting or receiving ultrasonic wave and store and provide default
Between include: ultrasonic signal maximum penetration time, ultrasonic signal minimal reflection time, minimum Fetal Heart Rate sample time, to judge mould
Block offer judges benchmark, assists control module work.
Control module is electrically connected with frequency adjustment module, according to the adjusted result of frequency adjustment module, controls corresponding function
Can module open or close, such as when frequency adjustment module adjusts the frequency of processing unit as general work frequency, i.e., it is believed that
Probe enters operating mode, and control module can open ultrasound emission unit and echo signal reception unit, work
The reception of ultrasonic signal emission and echo-signal when mode.
Embodiment two makes on the basis of embodiment a pair of processing unit carries out frequency control, further to each function
Module is controlled accordingly, while avoiding unnecessary consumption of the processing unit to electric energy, also avoids each functional module pair
The unnecessary consumption of electric energy.The loss of electric energy is further decreased, the time of wireless ultrasound probe continuation of the journey is extended.
Computing module, is also used to calculate the frequency, phase and intensity of echo-signal, and passes through corresponding echo-signal
Calculate the Fetal Heart Rate of testee.
Embodiment three as shown in Fig. 7, ultrasound emission unit is additionally provided with power amplification on the basis of example 2
Circuit；For promoting the transmission power of ultrasound emission unit；
Pretreatment unit is additionally provided with echo-signal amplifying circuit, for amplifying the echo-signal received；
Wireless ultrasound probe further include: the pretreatment unit that is electrically connected respectively with processing unit, demodulator circuit unit, wireless
Communication unit and echo wave signal acquisition unit.
Pretreatment unit, for amplifying the echo-signal of echo signal reception unit, the noise for filtering out while being amplified；It mentions
Rise the signal-to-noise ratio of received echo-signal.
Demodulator circuit unit, the echo-signal after accepting filter are sent for the echo-signal to be demodulated into frequency offset signal
To the computing module of processing unit, corresponding Fetal Heart Rate is calculated.
Wireless communication unit is electrically connected with processing unit, and for connecting with central station, the calculating of transmission processing unit is completed
Fetal Heart Rate result.
Meanwhile echo signal reception unit is additionally provided with sampling hold circuit, for storing frequency offset signal, then passes through rear class
Circuit, which is filtered compensation, can be obtained continuous signal；Wireless ultrasound probe can be using time-sharing discontinuous transmitting and reception ultrasound
Wave signal solves the problems, such as that power consumption is higher when continuous ultrasound transmitting and continuous reception.
Wireless ultrasound probe further includes the echo wave signal acquisition list being electrically connected with control module, sampling hold circuit
Member, for acquiring the frequency offset signal in sampling hold circuit.
Example IV as shown in Fig. 8 further includes and ultrasound emission unit, echo-signal on the basis of embodiment three
The electricity that receiving unit, pretreatment unit, demodulator circuit unit, wireless communication unit, echo wave signal acquisition unit are electrically connected
Source unit, institute's power supply unit are provided with control terminal and are electrically connected with control module, and control module is allow accurately to control power supply unit
Powering mode.
Or power supply unit is connected by independent enabled pin with the pin GPIO of the control module in processing unit, is led to
The partial power voltage can individually be opened and closed by crossing processing unit, thus in the different phase realization pair of ultrasonic signal processing
The opening and closing of modules.
On this basis, power supply unit can also provide above-mentioned functional module different electricity by independent power supply system
Pressure is powered, and more thorough closing and can open relevant functional module, allows the partial function mould of wireless ultrasound probe
Block accomplishes zero-power, reduces probe power consumption to greatest extent, improves probe and uses the time.
By above-mentioned power-economizing method and using this method equipment it is found that the present invention is adjusted in the frequency to processing unit
On the basis of section, also adds and subtle control is carried out to the operating mode of each functional module, wireless ultrasound of the invention can be made
Probe, is not increasing volume, is being not added on the basis of big battery capacity, when having longer work continuation of the journey relative to existing product
Between, while saving production cost, also give the preferable usage experience of user.
Above content, only presently preferred embodiments of the present invention, are not intended to limit embodiment of the present invention, and this field is general
Logical technical staff's central scope according to the present invention and spirit can very easily carry out corresponding flexible or modification, therefore originally
The protection scope of invention should be subject to protection scope required by claims.
Claims (8)
1. a kind of method for extending probe cruising ability, which is characterized in that further comprising the steps of:
S1. wireless ultrasound probe starts, and ultrasound emission unit emits the ultrasonic signal of fixed frequency；Echo signal reception unit
Receive corresponding echo-signal；According to the judgement of the echo signal intensity or scheduled operating time, the ultrasound is adjusted
The working condition of one of transmitting unit, the echo signal reception unit, processing unit or any combination；
The step s1 also specifically comprises the following steps:
S11. the ultrasonic signal of the ultrasound emission unit transmitting fixed frequency is opened；Open the echo signal reception unit
Receives echo-signal；
S12. when the echo-signal reaches unlatching threshold value, the echo signal reception unit is closed；The echo-signal does not reach
When to the unlatching threshold value, the ultrasound emission unit and the echo signal reception unit are closed, by the standby predetermined time
Afterwards, s11 is entered step；
In the step s12, when judging that the echo-signal reaches the unlatching threshold value, the echo signal reception list is closed
Member, and execute following sequential steps:
A. the ultrasound emission unit continues to emit ultrasonic signal, when reaching the maximum penetration time of ultrasonic signal, stops
The ultrasound emission unit；
When b. reaching the minimal reflection time of ultrasonic signal, start the echo signal reception unit, receives the echo letter
Number；
C. starting pretreatment unit is amplified and is filtered to the echo-signal, starts demodulator circuit unit for filtered institute
It states echo-signal and is demodulated into frequency offset signal, then store into sampling hold circuit；
D. the echo signal reception unit, the pretreatment unit, the demodulator circuit unit are closed；
E. start echo wave signal acquisition unit, acquire the frequency offset signal and be sent to the processing unit；After the completion of acquisition, close
The echo wave signal acquisition unit.
2. a kind of method for extending probe cruising ability as described in claim 1, which is characterized in that after the step s1 also
Execute following steps:
S2. the frequency of the processing unit is adjusted to standby frequency and judges whether the echo-signal reaches unlatching threshold value,
If the echo-signal reaches unlatching threshold value, the wireless ultrasound probe enters operating mode, adjusts the processing unit
Frequency is general work frequency；If the echo-signal is not up to the unlatching threshold value, the wireless ultrasound probe enters
Standby mode rejudges after the standby predetermined time.
3. a kind of method for extending probe cruising ability as claimed in claim 1 or 2, which is characterized in that after the step s1
It is further comprising the steps of:
S4. after the processing unit acquisition frequency offset signal reaches the acquisition predetermined time, the frequency of the processing unit is adjusted as meter
Calculate working frequency；After the processing unit calculates Fetal Heart Rate according to the frequency offset signal, the frequency of the processing unit is adjusted
For general work frequency.
4. a kind of method for extending probe cruising ability as claimed in claim 3, which is characterized in that before the step s4 also
Include the following steps；
S3. emit ultrasonic signal and receive the echo-signal；Institute is demodulated into after amplifying filtering to the echo-signal
State frequency offset signal.
5. a kind of method for extending probe cruising ability as claimed in claim 4, which is characterized in that after the step s4 also
Successively the following steps are included:
S5. central station is sent by the Fetal Heart Rate, judges whether to continue to monitor fetal heart rate signal, if so, entering step s3；If
It is no, then close the wireless ultrasound probe.
6. a kind of method for extending probe cruising ability as described in claim 1, which is characterized in that after the step e, hold
Row following steps:
F. starting computing module calculates Fetal Heart Rate according to the frequency offset signal；The computing module is closed after the completion of calculating；
G. start wireless communication unit, send central station for the Fetal Heart Rate；It completes to close the channel radio after data are sent
Believe unit；
H. start the ultrasonic signal that the ultrasound emission unit emits fixed frequency again；The echo signal reception unit connects
Receive the echo-signal；
I. judge whether the echo-signal reaches the unlatching threshold value；If the echo-signal reaches the unlatching threshold value,
A is entered step, the monitoring of fetal heart rate signal is continued；If the echo-signal is not up to the unlatching threshold value, close described in
Wireless ultrasound probe.
7. a kind of wireless ultrasound probe for extending cruising ability, comprising:
Ultrasound emission unit is used for the controllable ultrasonic signal of tranmitting frequency, reaches the maximum penetration time of ultrasonic signal
When, stop the ultrasound emission unit；
Echo signal reception unit is used for receives echo-signal；When reaching the minimal reflection time of ultrasonic signal, described in starting
Echo signal reception unit receives the echo-signal；When the echo-signal reaches unlatching threshold value, the echo-signal is closed
Receiving unit；When the echo-signal is not up to the unlatching threshold value, the ultrasound emission unit and the echo-signal are closed
Receiving unit rejudges after the standby predetermined time；The echo signal reception unit is additionally provided with sampling and keeps electricity
Road；
Pretreatment unit is provided with echo-signal amplifying circuit, for amplifying the echo-signal received；It is additionally provided with filter
Wave circuit is electrically connected with the echo signal reception unit, for filter out amplification after the echo-signal noise；
Processing unit, the processing unit are provided with the control mould for controlling each functional unit work in the wireless ultrasound probe
Block, the control module are electrically connected with the filter circuit, and export fetal rhythm after carrying out calculation processing to the echo-signal
The computing module of rate；
Demodulator circuit unit is electrically connected with the pretreatment unit, the computing module, the control module respectively, and being used for will
The filtered echo-signal is demodulated into frequency offset signal, is sent to computing module；The frequency offset signal is stored in the sampling
In holding circuit；
Wireless communication unit is electrically connected with the processing unit, for being wirelessly connected with central station, transmits the processing unit
Calculated result；
The wireless ultrasound probe further includes echo wave signal acquisition unit, with the control module, the sampling hold circuit point
It is not electrically connected, for acquiring the frequency offset signal in the sampling hold circuit；
Storage unit is electrically connected with the processing unit, for storing pre-set predetermined value；
The processing unit is additionally provided with:
Judgment module, for judging whether the echo-signal reaches the unlatching threshold value or judge the wireless ultrasound probe
Whether scheduled operating time has been run；
Frequency adjustment module, for adjusting the ultrasound emission unit, the echo-signal according to the judging result of judgment module
The working condition of one of receiving unit, described processing unit or any combination.
8. a kind of wireless ultrasound probe for extending cruising ability as claimed in claim 7, which is characterized in that the wireless ultrasound
Probe further include:
The processing unit is additionally provided with: timing module, for timing and assists the control module work；
The computing module is also used to calculate the frequency, phase and intensity of the echo-signal；
The ultrasound emission unit is additionally provided with power amplification circuit；For promoting the transmission power of the ultrasound emission unit.
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| CN110652315A (en) * | 2019-10-22 | 2020-01-07 | 无锡祥生医疗科技股份有限公司 | Method and device for reducing power consumption of ultrasonic equipment |
| CN112971842A (en) * | 2019-12-16 | 2021-06-18 | 深圳市理邦精密仪器股份有限公司 | Method and device for controlling low power consumption of ultrasonic diagnostic equipment |
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| US7783905B2 (en) * | 2006-06-13 | 2010-08-24 | Via Technologies Inc. | Method for reducing power consumption of a computer system in the working state |
| WO2008146208A2 (en) * | 2007-06-01 | 2008-12-04 | Koninklijke Philips Electronics, N.V. | Wireless ultrasound probe with energy conservation |
| CN101862204A (en) * | 2009-04-14 | 2010-10-20 | Ge医疗系统环球技术有限公司 | Power saving method of ultrasonic medical diagnosis system and ultrasonic medical diagnosis system |
| CN103445806A (en) * | 2013-09-06 | 2013-12-18 | 苏州边枫电子科技有限公司 | Mechanical push-button wireless B type ultrasonic detection system capable of sleeping automatically |
| KR102223164B1 (en) * | 2014-02-28 | 2021-03-05 | 삼성메디슨 주식회사 | Wireless probe and method for power controlling of an wireless probe |
| KR101496170B1 (en) * | 2014-04-28 | 2015-02-26 | 주식회사 힐세리온 | Portable Ultrasonic Diagnostic Apparatus having Low Power Mode and Method thereof |
| CN204863274U (en) * | 2015-07-29 | 2015-12-16 | 深圳市安科瑞仪器有限公司 | Wireless foetus cardiotachometer |
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