CN113208653A - Ultrasonic image acquisition and processing system - Google Patents
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Abstract
The invention discloses an ultrasonic image acquisition processing system, which belongs to the technical field of ultrasound and comprises: the ultrasound acquisition device is remotely connected with a processing set, and the ultrasound acquisition device further comprises: the ultrasonic acquisition equipment comprises a first transmitting unit, a first receiving unit, a first processing unit, a state monitoring unit, a control unit and a communication unit, wherein when the ultrasonic acquisition equipment is in a preset abnormal working state, the control unit controls the communication unit to establish communication connection with at least one processing equipment in a processing set; a second processing unit, a third processing unit; the ultrasonic imaging device has the advantages of reducing the electric quantity of equipment, improving the endurance and simultaneously improving the signal processing capacity so as to generate a clearer ultrasonic image.
Description
Technical Field
The invention relates to the technical field of ultrasound, in particular to an ultrasound image acquisition and processing system.
Background
Ultrasonic waves can be transmitted in human tissues, the human body is not damaged and painful, and ultrasonic scanning imaging can provide real-time influence, so that the ultrasonic scanning instrument is widely applied, however, conventional ultrasonic scanning instruments arranged in hospitals and clinics are large in size and not portable, the cost of a single ultrasonic scanner is high, and the popularization of the ultrasonic scanner is greatly hindered; the portable ultrasonic scanner overcomes the defects of the existing ultrasonic scanner, and establishes a human body position image by using high-frequency sound waves, so that the disease condition diagnosis is facilitated. The most common example is the scanning examination of pregnant women to observe the condition of the fetus in the uterus, and it can also be used to scan organ tissues such as heart, lung, liver, gall bladder and breast.
The portable ultrasonic scanner in the prior art is usually powered by a built-in battery module, and due to the limitation of the whole volume of the portable ultrasonic scanner, the total electric quantity which can be supplied by the battery module in the portable ultrasonic scanner is limited, and the endurance capacity becomes the fatal weakness of the portable ultrasonic scanner; the portable ultrasonic scanner with the largest power consumption is an FPGA (field Programmable Gate array) chip processing unit, and the chip processing unit is responsible for processing sampled echo data and generating frame images; due to the limitations of the volume and the battery capacity of the machine, the processing capacity of the chip processing unit in the portable ultrasound scanner is generally low, and the processing capacity further decreases with the increase of the internal working environment temperature, so that the definition of the acquired and generated ultrasound image is difficult to guarantee.
Disclosure of Invention
According to the above problems in the prior art, an ultrasound image acquisition processing system is provided, which establishes communication connection with other processing devices through a built-in communication unit, and transfers the processing task of an echo signal to the processing device when the ultrasound acquisition device is in a preset abnormal working state, so that the electric quantity usage of the device is reduced, the endurance is improved, and meanwhile, the signal processing capability is improved, so that a clearer ultrasound image is generated.
The technical scheme specifically comprises the following steps:
an ultrasonic image acquisition processing system comprises an ultrasonic acquisition device, wherein the ultrasonic acquisition device is remotely connected with a processing set, and the processing set comprises a plurality of processing devices which are respectively and remotely connected with the ultrasonic acquisition device;
the ultrasound acquisition device further comprises:
a first transmitting unit for transmitting an ultrasonic signal;
a first receiving unit for sampling and receiving an echo signal of the ultrasonic signal,
the first processing unit is connected with the first receiving unit and used for processing the echo signals so as to generate and output ultrasonic images;
the state monitoring unit is connected with the first processing unit and used for monitoring the working state of the ultrasonic acquisition equipment according to each detection element arranged on the ultrasonic acquisition equipment and outputting the working state in real time;
the control unit is respectively connected with the state monitoring unit and the first processing unit and is used for controlling the first processing unit to stop working when the ultrasonic acquisition equipment is in a preset abnormal working state according to the working state;
the communication unit is connected with the control unit, and when the ultrasonic acquisition equipment is in a preset abnormal working state, the control unit controls the communication unit to establish communication connection with at least one processing equipment in the processing set;
the second processing unit is respectively connected with the communication unit, the control unit and the first receiving unit and is used for respectively sending the echo signals to the processing equipment which establishes communication connection through the communication unit for alternate processing;
and the third processing unit is connected with the communication unit and used for receiving the feedback data of the processing equipment through the communication unit and outputting the ultrasonic image according to the feedback data.
Preferably, each processing device generates echo data according to the echo signal processing, and a centralized processing unit is adopted to form the ultrasonic image according to the echo data and then send the ultrasonic image as the feedback data to the ultrasonic acquisition device.
Preferably, the centralized processing unit is disposed in a cloud server;
the ultrasonic acquisition equipment is in communication connection with the processing equipment through the cloud server.
Preferably, the centralized processing unit is disposed in the ultrasound acquisition device and connected to the third processing unit.
Preferably, wherein the detection element provided on the ultrasound acquisition device comprises a power management element and/or a temperature detection element;
the preset abnormal working state includes:
the power supply electric quantity of the ultrasonic acquisition equipment is lower than a preset electric quantity, and/or the operating temperature of the ultrasonic acquisition equipment is higher than a preset temperature.
Preferably, the ultrasound image acquisition processing system comprises a plurality of portable ultrasound devices which can be in communication connection with each other;
when one of the portable ultrasonic devices is used as the ultrasonic acquisition device, the rest of the portable ultrasonic devices are respectively used as the processing devices.
Preferably, the communication unit includes a plurality of communication subunits, and each communication subunit establishes a communication connection with one of the processing devices.
Preferably, wherein the communication unit comprises a 5G chip.
Preferably, the echo signal includes multiple sets of beam data, and the second processing unit sends different beam data to different processing devices in turn to be processed.
Preferably, the control unit is further connected to the first receiving unit, and the control unit adjusts the sampling frequency of the first receiving unit according to the abnormal operating state.
The beneficial effects of the above technical scheme are that:
the utility model provides an ultrasonic image gathers processing system, establishes communication connection through built-in communication unit and other processing equipment, when ultrasonic acquisition equipment is in the unusual operating condition of predetermineeing, shifts the processing task of echo signal for processing equipment to reduce the electric quantity of equipment and use, promote duration, improved the throughput of signal simultaneously, with the more clear ultrasonic image of generation.
Drawings
Fig. 1 is a schematic structural diagram of an ultrasound acquisition apparatus according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
An ultrasonic image acquisition processing system comprises an ultrasonic acquisition device, wherein the ultrasonic acquisition device is remotely connected with a processing set, and the processing set comprises a plurality of processing devices which are remotely connected with portable ultrasonic devices respectively;
the ultrasound acquisition device further comprises:
a first transmission unit 1 for transmitting an ultrasonic signal;
a first receiving unit 2 for sampling and receiving an echo signal of the ultrasonic signal,
the first processing unit 3 is connected with the first receiving unit 2 and used for processing the echo signals to generate and output ultrasonic images;
the state monitoring unit 4 is connected with the first processing unit 3 and used for monitoring the working state of the ultrasonic acquisition equipment according to each detection element arranged on the ultrasonic acquisition equipment and outputting the working state in real time;
the control unit 5 is respectively connected with the state monitoring unit 4 and the first processing unit 3, and is used for controlling the first processing unit 3 to stop working when the ultrasonic acquisition equipment is in a preset abnormal working state according to the working state;
the communication unit 6 is connected with the control unit 5, and when the ultrasonic acquisition equipment is in a preset abnormal working state, the control unit 5 controls the communication unit 6 to establish communication connection with at least one processing equipment in the processing set;
the second processing unit 7 is respectively connected with the communication unit 6, the control unit 5 and the first receiving unit 2, and is used for respectively sending the echo signals to the processing equipment which establishes communication connection through the communication unit 6 for alternate processing;
and the third processing unit 8 is connected with the communication unit 6 and is used for receiving the feedback data of the processing equipment through the communication unit 6 and outputting the ultrasonic image according to the feedback data.
As a preferred embodiment, in the prior art, the power consumption of the desktop ultrasound scanning apparatus is generally about 200w, the power consumption of the portable ultrasound apparatus is generally varied between 4w and 20w, and if the portable ultrasound apparatus is powered by a polymer lithium battery with a voltage of 3.7v and a capacity of 4000 ma, the duration of the power consumption is maintained for 2 to 4 hours, and the cruising ability is further shortened in a high-intensity high-frequency application scenario. In the working process of the portable ultrasonic device, the module with the largest power consumption is the processing unit, and the processing unit needs to perform high-speed calculation processing on the echo signals sampled and received by the receiving unit so as to meet the requirement of real-time generation of ultrasonic images.
In one embodiment of the present invention, the first processing unit 3, the second processing unit 7 and the third processing unit 8 may be integrated in the same processing chip, for example, the processing chip may be fpga chip, which is specified by Efinix T20, the first transmitting unit 1 employs an 8-channel transmitting unit, which is specified by HDL6M5584, and the first receiving unit 2 also employs an 8-channel receiving unit, which is specified by AD 9273. The signal transmitted by the first transmitting unit 1 is represented as: cos (2 nw)0t), where n denotes the sampling interval, w0Representing angular velocity, t representing time; the echo signal is denoted as r (t), and the echo signal after sampling at a predetermined sampling rate by the first receiving unit 2 is denoted as r (nT)s) Dividing the echo signal into two paths to multiply cos (w) respectively0nTs) And sin (w)0nTs), which yields after quadrature demodulation: r isi(nTs)＝r(nTs)(w0nTs) And rq(nTs)＝r(nTs)sin(w0nTs) (ii) a Square root is calculated after square sum of two paths of signals:
wherein Ts is a period corresponding to the sampling rate. The processing chip demodulates the echo signal into r according to the obtained echo signali(nTs) And rq(nTs) A signal.
Specifically, in this embodiment, the ultrasound acquisition device performs ultrasound scanning in a sequential scanning manner, and one scanning generates one frame of ultrasound image, where one scanning includes multiple ultrasound scanning, and the number of array elements participating in each ultrasound scanning is k, and in a specific embodiment of the present invention, k may be any one of 16, 24, and 32, where the larger the number of array elements participating in each ultrasound scanning, the larger the echo data received by sampling, and the larger the power consumption of the ultrasound device. In the working mode of sequential scanning, the participating array elements move by B array element spacing step lengths between two adjacent ultrasonic scanning, in a specific embodiment of the invention, the value of B is 4, namely the ultrasonic acquisition equipment moves by 4 array element spacing step lengths to carry out the next ultrasonic scanning after each ultrasonic scanning is finished. The smaller the array element distance B moving between two adjacent scanning operations, the more ultrasonic scanning times are required for each scanning operation, and the larger the power consumption of the corresponding ultrasonic equipment is; but at the same time, the resolution of the resulting ultrasound image is also higher.
In each ultrasonic scanning process, the ultrasonic acquisition equipment can synchronously sample the echo signals to generate echo data; after one ultrasonic scanning is finished, the ultrasonic acquisition equipment packs the echo data collected corresponding to the scanning, and sends the echo data to corresponding processing equipment through the communication unit; in order to process echo data simultaneously, improve the data processing speed and reduce the data processing pressure of a single processing device, the processing device receives the echo data sent by the portable ultrasonic device in turn and returns the processed beam data to the portable ultrasonic device. And after receiving all the beam data processed in the current scanning, the portable ultrasonic equipment carries out synthesis processing on the beam data so as to generate a corresponding frame image.
In a preferred embodiment of the present invention, each processing device generates echo data according to the echo signal processing, and a centralized processing unit is used to form an ultrasound image according to the echo data and then send the ultrasound image as feedback data to the ultrasound acquisition device.
Specifically, in this embodiment, when the ultrasound acquisition device detects that the device itself is in a preset abnormal operating state, the ultrasound acquisition device stops the operation of the first processing unit 3, that is, stops the processing of the echo signal sampled and received by the first receiving unit 2, thereby reducing the power consumption; then, the processing function of the echo signal of the ultrasonic probe is transferred to the processing equipment in the processing set through the second processing unit 7 and the communication unit 6, the processing equipment processes the echo signal to generate echo data, the centralized processing unit is used for collecting and synthesizing the echo data to generate a corresponding ultrasonic image, and the ultrasonic image is sent to the ultrasonic acquisition equipment.
In a preferred embodiment of the present invention, the centralized processing unit is disposed in a cloud server;
the ultrasonic acquisition equipment is respectively in communication connection with the processing equipment through the cloud server.
Specifically, in this embodiment, the centralized processing unit may be disposed outside the ultrasound acquisition device, for example, in a cloud server, and the cloud server processes the generated echo data by collecting and synthesizing the echo data, so as to generate an ultrasound image corresponding to the echo data.
In a preferred embodiment of the invention, a centralized processing unit is arranged in the ultrasound acquisition device and is connected to the third processing unit 8.
Specifically, in this embodiment, the centralized processing unit is disposed in the ultrasound acquisition device, in an embodiment of the present invention, the centralized processing unit may be integrated with the first processing unit 3, the second processing unit 7, and the third processing unit 8 in the same processing chip, and in this embodiment, the ultrasound image synthesis operation is completed in the ultrasound acquisition device.
In a preferred embodiment of the present invention, the detection element disposed on the ultrasound acquisition device comprises a power management element and/or a temperature detection element;
the preset abnormal working state includes:
the power supply electric quantity of the ultrasonic acquisition equipment is lower than a preset electric quantity, and/or the operation temperature of the ultrasonic acquisition equipment is higher than a preset temperature.
Specifically, in this embodiment, the power management element is configured to detect whether an electric quantity of a battery in the ultrasound acquisition device is lower than a preset electric quantity, and the temperature detection element is configured to detect an ambient temperature of the ultrasound acquisition device during an operation process.
In a preferred embodiment of the present invention, the ultrasound image acquisition processing system comprises a plurality of portable ultrasound devices that are communicatively connected to each other;
when one of the portable ultrasonic devices is used as an ultrasonic acquisition device, the other portable ultrasonic devices are respectively used as processing devices.
Specifically, in this embodiment, the processing device may be a processing chip disposed in the cloud processing end, or may be another portable ultrasound device, or a large desktop ultrasound device, and further, may be any combination of the three devices, and only the three devices need to be connected in a communication manner through a network, the portable ultrasound device may be configured such that when its own power is insufficient, that is, the power of the power supply is lower than a first preset threshold, the control unit 5 receives a low power signal, and the ultrasound device cannot meet a long-time large-scale data processing, or when the processing unit generates too much heat during data processing, the ambient temperature exceeds a second preset threshold, and when the power is reduced due to the emission of a high-temperature alarm signal, the control unit 5 may choose to perform networking with the processing set through the communication unit 6, and distribute the acquired echo signal to each processing device in the processing set, carrying out corresponding echo signal processing by a plurality of processing devices simultaneously; after the processing is finished, each processing device returns the data generated after the processing to the portable ultrasonic device, and the portable ultrasonic device carries out frame image synthesis according to the returned data.
In the preferred embodiment of the present invention, the communication unit 6 includes a plurality of communication subunits, each of which establishes a communication connection with a processing device.
Specifically, in this embodiment, the communication unit 6 includes a plurality of communication subunits capable of independently sending and receiving data, and the communication unit 6 may specifically select which processing devices to establish remote connection according to the size of the data volume to be sent and processed, and may dynamically adjust according to the real-time sending volume; as a preferred embodiment, when selecting a processing device, the communication unit 6 may preferentially select a processing device with higher processing capability, for example, a large desktop ultrasound device, or a high-performance processing chip on a cloud processing side; if the cloud processing end only has other portable ultrasonic equipment as processing equipment, the portable ultrasonic equipment with sufficient electric quantity and current idle is preferentially selected, and the ultrasonic image acquisition processing system disclosed by the invention can effectively reduce the current electric consumption of the equipment on the premise of ensuring the generation of an image when the electric quantity of the portable ultrasonic equipment is insufficient, and improves the cruising ability of single portable ultrasonic equipment; meanwhile, when the portable ultrasonic equipment needs to process and generate a high-definition image, the defect of insufficient processing capacity of the portable ultrasonic equipment can be overcome, and the ultrasonic image with higher definition is generated by a mode of high processing capacity in the cloud processing end or a mode of improving the total processing capacity by integrating the processing capacity of idle processing equipment existing as the processing equipment in the cloud processing end.
In the preferred embodiment of the present invention, the communication unit 6 includes a 5G chip.
Specifically, in this embodiment, the model of the 5G chip is CYW 54907. Assuming that the detection depth of the ultrasonic acquisition equipment is D, the sampling frequency of the first receiving unit 2 is Fs, the sampling precision is P, the sound velocity is V, the maximum number of channels is C, the number of array elements is N,the frame rate is F, and the data amount is F by adopting the interval scanning method every time
In order to be able to satisfy the throughput of 5 GWIFISI of 1Gbps, it is necessary to
In the preferred embodiment of the present invention, the echo signal includes multiple sets of beam data, and the second processing unit 7 sends different sets of beam data to different processing devices in turn for processing.
Specifically, in this embodiment, the second processing unit 7 performs packet transmission on the beam data in the echo signal, and evenly distributes the task amount to be processed to the plurality of processing devices, each processing device processes the transmitted beam data and then returns the generated processed data to the processing unit, and the processing unit summarizes and synthesizes the processed data to generate a complete ultrasound image of one frame. In another embodiment of the present invention, the ultrasound image synthesis operation may also be performed in the cloud processing end, so as to further reduce the data processing amount of the processing unit, thereby further saving the power of the power supply of the portable ultrasound device.
Specifically, in this embodiment, a group of echo signals generates a frame of ultrasound image correspondingly, and a group of echo signals includes multiple groups of beam data, and when each group of beam data is sent to different processing devices in a distributed manner for processing, the processing unit needs to synthesize the ultrasound image after collecting processing data that is returned correspondingly after all the beam data are processed, so as to generate a frame of complete ultrasound image.
In the preferred embodiment of the present invention, the control unit 5 is further connected to the first receiving unit 2, and the control unit 5 adjusts the sampling frequency of the first receiving unit 2 according to the abnormal operating state.
In particular, in the present embodiment, the data amount of the echo signal can be reduced by reducing the AD sampling frequency of the first receiving unit 2, but the clarity of the ultrasound image generated according to the echo signal is also reduced,
the beneficial effects of the above technical scheme are that:
the utility model provides an ultrasonic image gathers processing system, establishes communication connection through built-in communication unit and other processing equipment, when ultrasonic acquisition equipment is in the unusual operating condition of predetermineeing, shifts the processing task of echo signal for processing equipment to reduce the electric quantity of equipment and use, promote duration, improved the throughput of signal simultaneously, with the more clear ultrasonic image of generation.
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 detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An ultrasonic image acquisition processing system is characterized by comprising an ultrasonic acquisition device, wherein the ultrasonic acquisition device is remotely connected with a processing set, and the processing set comprises a plurality of processing devices which are remotely connected with the ultrasonic acquisition device respectively;
the ultrasound acquisition device further comprises:
a first transmitting unit for transmitting an ultrasonic signal;
a first receiving unit for sampling and receiving an echo signal of the ultrasonic signal,
the first processing unit is connected with the first receiving unit and used for processing the echo signals so as to generate and output ultrasonic images;
the state monitoring unit is connected with the first processing unit and used for monitoring the working state of the ultrasonic acquisition equipment according to each detection element arranged on the ultrasonic acquisition equipment and outputting the working state in real time;
the control unit is respectively connected with the state monitoring unit and the first processing unit and is used for controlling the first processing unit to stop working when the ultrasonic acquisition equipment is in a preset abnormal working state according to the working state;
the communication unit is connected with the control unit, and when the ultrasonic acquisition equipment is in a preset abnormal working state, the control unit controls the communication unit to establish communication connection with at least one processing equipment in the processing set;
the second processing unit is respectively connected with the communication unit, the control unit and the first receiving unit and is used for respectively sending the echo signals to the processing equipment which establishes communication connection through the communication unit for alternate processing;
and the third processing unit is connected with the communication unit and used for receiving the feedback data of the processing equipment through the communication unit and outputting the ultrasonic image according to the feedback data.
2. The system according to claim 1, wherein each processing device generates echo data according to the echo signal processing, and a centralized processing unit is used to form the ultrasound image according to the echo data and send the ultrasound image as the feedback data to the ultrasound acquisition device.
3. The ultrasound image acquisition processing system of claim 2, wherein the centralized processing unit is disposed in a cloud server;
the ultrasonic acquisition equipment is in communication connection with the processing equipment through the cloud server.
4. The ultrasound image acquisition processing system according to claim 2, wherein the centralized processing unit is disposed in the ultrasound acquisition device and connected to the third processing unit.
5. The ultrasound image acquisition processing system of claim 1, wherein the detection element disposed on the ultrasound acquisition device comprises a power management element and/or a temperature detection element;
the preset abnormal working state includes:
the power supply electric quantity of the ultrasonic acquisition equipment is lower than a preset electric quantity, and/or the operating temperature of the ultrasonic acquisition equipment is higher than a preset temperature.
6. The ultrasound image acquisition processing system according to claim 1, wherein the ultrasound image acquisition processing system comprises a plurality of portable ultrasound devices which are communicatively connected with each other;
when one of the portable ultrasonic devices is used as the ultrasonic acquisition device, the rest of the portable ultrasonic devices are respectively used as the processing devices.
7. The ultrasound image acquisition processing system according to claim 1, wherein the communication unit comprises a plurality of communication subunits, and each communication subunit is in communication connection with one of the processing devices.
8. The ultrasound image acquisition processing system according to claim 1, wherein the communication unit comprises a 5G chip.
9. The ultrasound image acquisition processing system according to claim 1, wherein the echo signal includes a plurality of sets of beam data, and the second processing unit sends different sets of beam data to different processing devices in turn for processing.
10. The ultrasound image acquisition processing system according to claim 1, wherein the control unit is further connected to the first receiving unit, and the control unit adjusts a sampling frequency of the first receiving unit according to the abnormal operating state.
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