CN110048721B - Signal simulator, signal simulation method, signal simulation device, computer equipment and storage medium - Google Patents
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Abstract
The application relates to a signal simulator, the signal simulator includes: the device comprises a power supply module, a control module, a signal storage module and a digital-to-analog conversion module; the power supply module is used for supplying power to the signal simulator; the signal storage module is connected with the power supply module and is used for storing lead digital signals corresponding to a plurality of physiological indexes; the digital-to-analog conversion module is connected with the control module and is used for converting the lead digital signals into lead analog signals; the control module is respectively connected with the signal storage module and the digital-to-analog conversion module and is used for sending control signals to the signal storage module and the digital-to-analog conversion module, and the control signal storage module is used for providing lead digital signals and controlling the digital-to-analog conversion module to conduct digital-to-analog conversion so as to obtain lead analog signals and output the lead analog signals. The signal simulator not only improves the accuracy and stability of generating physiological signals, but also realizes synchronous generation of a plurality of physiological signals. In addition, a signal simulation method, a signal simulation device, computer equipment and a storage medium are also provided.
Description
Technical Field
The present invention relates to the field of signal simulation technologies, and in particular, to a signal simulator, a signal simulation method, a signal simulation device, a computer device, and a storage medium.
Background
PSG (Polysomnography ) is the most important examination for diagnosing sleep snoring (sleep apnea hypopnea syndrome, OSAHS). Through continuous night respiration, arterial blood oxygen saturation, electroencephalogram, electrocardiogram, heart rate and other indexes monitoring, the snorer can know whether the snorer has an apnea, the times of the apnea, the time of the apnea, the lowest arterial blood oxygen value when the apnea occurs and the degree of influence on the health, and is an internationally accepted gold standard for diagnosing sleep apnea-hypopnea syndrome.
Monitoring devices for sleep disorders all require detection of one or more physiological signals, and such devices require extensive data simulation and verification during the early stages of development. The traditional physiological signals are not provided with special simulator equipment, most of the traditional physiological signals are replaced by common signal generators, the later development stage can only be realized by being connected to a human body as a test signal, on one hand, the generated physiological signals are inaccurate, on the other hand, the human body has unstable characteristics as the test signal, and on the other hand, the signal time between various signal simulators is different and synchronous, and the real-time performance of research and development equipment cannot be verified.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a signal simulator, a signal simulation method, an apparatus, a computer device, and a storage medium that are accurate and stable in generating physiological signals and are capable of synchronously generating a plurality of physiological signals.
A signal simulator, the signal simulator comprising: the device comprises a power supply module, a control module, a signal storage module and a digital-to-analog conversion module;
the power supply module is used for supplying power to the signal simulator;
the signal storage module is connected with the power supply module and is used for storing lead digital signals corresponding to a plurality of physiological indexes;
the digital-to-analog conversion module is connected with the control module and is used for converting the lead digital signals into lead analog signals;
the control module is respectively connected with the signal storage module and the digital-to-analog conversion module and is used for sending control signals to the signal storage module and the digital-to-analog conversion module, controlling the signal storage module to provide the lead digital signals, controlling the digital-to-analog conversion module to conduct digital-to-analog conversion to obtain lead analog signals and outputting the lead analog signals.
A method of signal simulation, the method comprising:
receiving a signal simulation instruction, and acquiring a lead digital signal corresponding to each physiological index according to the signal simulation instruction;
and converting the lead digital signals corresponding to each physiological index into lead analog signals, and outputting the lead analog signals through an output interface corresponding to the physiological index.
A signal simulation apparatus, the apparatus comprising:
the acquisition module is used for receiving the signal simulation instruction and acquiring the lead digital signals corresponding to the physiological indexes according to the signal simulation instruction;
and the conversion output module is used for converting the lead digital signals corresponding to each physiological index into lead analog signals and outputting the lead analog signals through an output interface corresponding to the physiological index.
A computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of:
receiving a signal simulation instruction, and acquiring a lead digital signal corresponding to each physiological index according to the signal simulation instruction;
and converting the lead digital signals corresponding to each physiological index into lead analog signals, and outputting the lead analog signals through an output interface corresponding to the physiological index.
A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
receiving a signal simulation instruction, and acquiring a lead digital signal corresponding to each physiological index according to the signal simulation instruction;
and converting the lead digital signals corresponding to each physiological index into lead analog signals, and outputting the lead analog signals through an output interface corresponding to the physiological index.
According to the signal simulator, the signal simulation method, the device, the computer equipment and the storage medium, the lead digital signals corresponding to the multiple physiological indexes are stored in the signal storage module, then the lead digital signals can be converted into the lead analog signals (physiological signals) through the digital-to-analog conversion module, then the lead analog signals corresponding to the physiological indexes are output, the accuracy and the stability of the physiological signals are improved by utilizing the physiological signals obtained through digital-to-analog conversion of the signal simulator, and multiple physiological signals are simultaneously output through the same signal simulator, so that synchronous generation of the multiple physiological signals is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a circuit diagram of a signal simulator in one embodiment;
FIG. 2 is a circuit diagram of a signal simulator in another embodiment;
FIG. 3 is an external schematic of a signal simulator in one embodiment;
fig. 4A is a signal diagram of an open eye signal in one embodiment;
FIG. 4B is a signal diagram of an eye closure signal in one embodiment;
FIG. 4C is a signal diagram of a regular blink signal according to one embodiment;
FIG. 4D is a signal diagram of a regular molar signal in one embodiment;
FIG. 4E is a plot of center electrical signals for one embodiment;
FIG. 4F is a graph of a regular leg movement signal in one embodiment;
FIG. 4G is a graph of simulated central apneic events in one embodiment;
FIG. 4H is a graph of obstructive respiratory event signals in one embodiment;
FIG. 4I is a graph of a finger tip pulse wave signal in one embodiment;
FIG. 4J is a graph of a regular snore vibration signal in one embodiment;
FIG. 5 is a block diagram of a signal simulator in one embodiment;
FIG. 6 is a flow chart of a method of signal simulation in one embodiment;
FIG. 7 is a block diagram of a signal simulation device in one embodiment;
FIG. 8 is a block diagram of a signal simulation device according to another embodiment;
fig. 9 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a signal simulator is proposed, which comprises: a power module 102, a control module 104, a signal storage module 106, and a digital to analog conversion module 108; the power module 102 is configured to supply power to the signal simulator; the signal storage module 106 is connected with the power supply module and is used for storing lead digital signals corresponding to a plurality of physiological indexes; the digital-to-analog conversion module 108 is connected with the control module and is used for converting the lead digital signal into a lead analog signal; the control module 104 is respectively connected with the signal storage module and the digital-to-analog conversion module, and is used for sending control signals to the signal storage module and the digital-to-analog conversion module, controlling the signal storage module to provide the lead digital signals, controlling the digital-to-analog conversion module to perform digital-to-analog conversion to obtain lead analog signals and outputting the lead analog signals.
The power module 102 is connected to the control module 104, the signal storage module 106, and the digital-to-analog conversion module 108, and is configured to provide electric energy to the control module 104, the signal storage module 106, and the digital-to-analog conversion module 108. The signal storage module 106 is connected to the control module 104, and is configured to store the lead digital signals corresponding to the multiple physiological indexes.
The physiological index refers to an index of a physiological parameter of a human or animal body to be measured. The physiological index includes: heart rate, eye movement rate, chest respiratory tension, abdominal respiratory tension, nasal ventilation, nasal pressure, leg muscles, oral ventilation, blood oxygen saturation, posture, snoring, mandibular muscles, and the like. The lead digital signals refer to pre-stored physiological digital signals corresponding to various physiological indexes, and standard physiological digital signals corresponding to the physiological indexes are generally selected as corresponding lead digital signals. In one embodiment, the same physiological index may store one lead digital signal correspondingly, or store a plurality of lead digital signals correspondingly, where different lead digital signals represent different physiological characteristics, for example, a lead digital signal under normal conditions and a lead digital signal corresponding under abnormal conditions, so that the lead digital signal can output a corresponding lead analog signal as required, that is, not only a physiological signal corresponding to a human body under normal conditions but also a physiological signal corresponding to a human body under abnormal conditions can be output.
The digital-to-analog conversion module DAC (Digital to analog converter) is used for converting digital signals into analog signals, converting lead digital signals into analog signals through the digital-to-analog conversion module and outputting the analog signals, so that physiological signals (namely lead analog signals) corresponding to all physiological indexes are obtained. The signal simulator simultaneously comprises the lead digital signals corresponding to the plurality of physiological indexes, so that the physiological signals corresponding to the plurality of physiological indexes can be synchronously generated, and the accuracy and the stability of generating the physiological signals are improved by converting the lead digital signals corresponding to the physiological indexes into the lead analog signals for output.
According to the signal simulator, the lead digital signals corresponding to the multiple physiological indexes are stored in the signal storage module, then the lead digital signals can be converted into the lead analog signals through the digital-to-analog conversion module, then the lead analog signals corresponding to the physiological indexes are output, the accuracy and stability of the physiological signals are improved by utilizing the physiological signals obtained through digital-to-analog conversion of the signal simulator, and multiple physiological signals are simultaneously output through the same signal simulator, so that synchronous generation of the multiple physiological signals is realized.
As shown in fig. 2, in one embodiment, the signal simulator further includes: an amplitude frequency adjustment module 110 connected to the control module, for adjusting the frequency and/or amplitude of the lead digital signal, and sending the adjusted lead digital signal to the digital-to-analog conversion module; the control module 104 is further configured to send the lead digital signal to the amplitude frequency adjustment module for frequency and/or amplitude adjustment.
Wherein, referring to fig. 2, in order to enable dynamic adjustment of the lead digital signal, different lead analog signals are generated. The signal simulator is also provided with an amplitude frequency adjusting module which is respectively connected with the control module 104, the digital-to-analog conversion module connection 108 and the signal storage module 106. The amplitude frequency adjustment module 110 is used for adjusting the lead digital signal according to the frequency parameter and the amplitude parameter set by the user.
In one embodiment, the signal simulator comprises: the multiple output interfaces are different from the output interfaces corresponding to the lead analog signals of different physiological indexes.
Wherein, the output signals corresponding to each output interface are different, and the lead analog signals of different physiological indexes correspond to different output interfaces. Moreover, the same physiological index may correspond to a plurality of lead analog signals, i.e. to a plurality of sub-output interfaces. Fig. 3 is an external schematic diagram of a signal simulator, which includes a plurality of output interfaces, and the same physiological index corresponds to a plurality of sub-output interfaces, for example, an electroencephalogram signal includes 6 sub-output interfaces and 2 electrodes. As shown in fig. 3, the outer structure 300 includes: an electroencephalogram signal output interface 301, wherein the electroencephalogram signal output interface 301 comprises six leads of F3, F4, C3, C4, O1 and O2 and reference electrodes A1 and A2); an electro-ocular signal output interface 302, wherein the electro-ocular signal output interface 302 comprises two leads E1, E2 and reference electrodes A1, A2); a mandibular electromyographic signal output interface 303 (comprising chip 1, chip 2 and common electrode ChinZ); the electrocardiosignal output interface 304 comprises an electrocardio II lead RA, LA and a reference electrode RLD); leg electromyographic signal output interface 305 (comprising left leg L+, L-and right leg R+, R-four electrodes); abdomen respiratory wave signal output interface 306; a chest respiratory wave signal output interface 307; a nasal airflow waveform signal output interface 308; a nasal pressure waveform signal output interface 309; a blood oxygen pulse wave signal output interface 310; snore signal output interface 311, body position digital signal output interface 312 (comprising BP1, BP 2).
In one embodiment, the output lead analog signal is at least one of an electroencephalogram signal, an electrooculogram signal, a mandibular electromyogram signal, an electrocardio signal, an electromyogram signal, an abdominal respiratory wave signal, a chest respiratory wave signal, a nasal airflow waveform signal, a nasal pressure waveform signal, an oximetry pulse wave signal, a snore signal, and a body digital signal.
The lead analog signal can be one of an electroencephalogram signal, an electrooculogram signal, a mandibular electromyogram signal, an electrocardio signal, an electromyogram signal, an abdomen respiratory wave signal, a chest respiratory wave signal, a nose airflow waveform signal, a nose pressure waveform signal, a blood oxygen pulse wave signal, a snore signal, a body position digital signal and the like. The signal simulator can realize the simultaneous output of various lead analog signals, achieves synchronization and is favorable for assisting in verifying the instantaneity of research and development equipment.
As shown in fig. 4A, in one embodiment, a signal diagram of eye-open signals output by 6 leads (F3, F4, C3, C4, O1, O2) of the electroencephalogram signal; fig. 4B is a signal diagram of the eye-closed signal output by 6 leads of the brain electricity; FIG. 4C is a signal plot of a regular blink signal output by the electro-oculogram 2 lead; FIG. 4D is a signal plot of the regular molar signal output by the mandibular electromyography 2 lead; FIG. 4E is a graph of an electrocardiograph signal output by an electrocardiograph II lead; FIG. 4F is a graph of a regular leg movement signal output by the eye myoelectricity 4 lead; fig. 4G is a regular simulated central apnea event signal output by a combination of nasal pressure, nasal airflow, chest breathing, and abdominal breathing, central apnea: in general, respiratory paradoxical movements, i.e. central apneic events, occur when the amplitude of the oronasal airflow (nasal pressure or nasal heat sensitivity) is reduced by more than 90%, while the chest and abdomen respiratory effort is also reduced by more than 90%. Fig. 4H is a regular simulated obstructive apneic event signal output by a combination of nasal pressure, nasal airflow, chest breathing, and abdominal breathing, obstructive apneas: in general, the amplitude of the oronasal airflow (nasal pressure or nasal heat sensitivity) drops by more than 90% and simultaneously the chest and abdomen respiratory effort drops by more than 90% and respiratory effort contradictory movements occur, namely obstructive apneic events. Fig. 4I is a fingertip pulse wave signal diagram output by the blood oxygen pulse waveguide, and fig. 4J is a regular snore vibration signal diagram output by the snore waveguide.
In one embodiment, the body position leads output a regular analog turn-over digital signal, and the output truth table is as follows:
| BP1 | | body position | |
| 0 | 1 | Lie on the right side | |
| 1 | 0 | Lie on the left side | |
| 1 | 1 | Lying flat |
In one embodiment, the signal simulator further comprises: the key and the display screen are connected with the control module; the key is used for setting frequency parameters and/or amplitude parameters for adjusting the lead digital signals; the display screen is used for displaying the frequency parameter and/or the amplitude parameter of the key adjustment.
The signal simulator is characterized in that a key and a display screen are further arranged outside the signal simulator, the key and the display screen are directly connected with the control module, the key is used for adjusting the frequency and/or the amplitude of the lead digital signal, then the display screen can display the adjusting result, for example, the corresponding frequency parameter or the amplitude parameter is adjusted by displaying the key in real time, and the key is assisted in adjusting the frequency parameter and/or the amplitude parameter. As shown in fig. 5, a frame diagram of a signal simulator is shown in one embodiment. Comprising the following steps: the device comprises a power module, a control module, keys, a display screen, a signal storage module, an amplitude-frequency conversion module, a digital-to-analog conversion module and a plurality of output interfaces. The power module provides electric energy for other modules, the control module is connected with the keys, the display screen, the signal storage module, the amplitude probability conversion module and the digital-to-analog conversion module, the digital-to-analog conversion module is connected with a plurality of output interfaces, and the signal storage module, the amplitude probability conversion module and the digital-to-analog conversion module are sequentially connected.
As shown in fig. 6, in one embodiment, a signal simulation method is proposed, the method comprising:
The signal simulator receives the signal simulation instruction, and further obtains lead digital signals corresponding to the physiological indexes. Specifically, the lead digital signals corresponding to each physiological index are stored in the signal storage module in advance, and after the control module acquires the analog instruction, the lead digital signals corresponding to each physiological index are acquired from the signal storage module. For example, assume a total of 5 physiological indices, A, B, C, D and E, respectively, and a lead digital signal a for A, a lead digital signal B for B, a lead digital signal C for C, a lead digital signal D for D, and a lead digital signal E for E are pre-stored. The lead digital signal generally selects the standard physiological digital signal corresponding to the physiological index.
The digital-to-analog conversion module converts the lead digital signals into lead analog signals and then outputs the lead analog signals through the output interface. The signal simulation method can realize the simultaneous generation of a plurality of physiological signals by converting the lead digital signals corresponding to each physiological index into the lead simulation signals (physiological signals), and the generated physiological signals are not interfered by other external regulation, so that the method is more accurate and stable.
In one embodiment, after receiving the signal simulation instruction, further comprising: acquiring frequency parameters and/or amplitude parameters corresponding to target physiological indexes of which the frequency or the amplitude needs to be adjusted, and adjusting corresponding lead digital signals according to the frequency parameters and/or the amplitude parameters to obtain adjusted target lead digital signals; the converting the lead digital signal corresponding to each physiological index into a lead analog signal, and outputting the lead analog signal through an output interface corresponding to the physiological index comprises: and converting the target lead digital signal into a target lead analog signal, and outputting the target lead analog signal through an output interface corresponding to the target physiological index.
Because the physiological signals under different conditions are to be simulated, the frequency and/or amplitude of the lead digital signals are required to be changed and adjusted in many cases, so that the frequency parameters and/or amplitude parameters corresponding to the target physiological indexes of which the frequency or the amplitude is required to be adjusted are also required to be acquired, the lead digital signals are adjusted according to the frequency parameters and/or the amplitude parameters, and finally the target lead digital signals corresponding to the target physiological indexes are acquired. And then converting the target lead digital signal into a target lead analog signal, and outputting the target lead analog signal through an output interface corresponding to the target physiological index.
As shown in fig. 7, in one embodiment, a signal simulation apparatus is provided, which includes:
the acquisition module 702 is configured to receive a signal simulation instruction, and acquire a lead digital signal corresponding to each physiological index according to the signal simulation instruction;
the conversion output module 704 is configured to convert the lead digital signal corresponding to each physiological index into a lead analog signal, and output the lead analog signal through an output interface corresponding to the physiological index.
As shown in fig. 8, in one embodiment, the signal simulation apparatus further includes:
the adjusting module 703 is configured to obtain the frequency parameter and/or the amplitude parameter corresponding to the target physiological index that needs to be adjusted in frequency or amplitude, and adjust the corresponding lead digital signal according to the frequency parameter and/or the amplitude parameter, so as to obtain an adjusted target lead digital signal;
the conversion output module 704 is further configured to convert the target lead digital signal into a target lead analog signal, and output the target lead analog signal through an output interface corresponding to the target physiological index.
FIG. 9 illustrates an internal block diagram of a computer device in one embodiment. The computer may be a signal simulator, a terminal. As shown in fig. 9, the computer device includes a processor, a memory, and an output interface connected by a system bus. The memory includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system, and may also store a computer program that, when executed by a processor, causes the processor to implement a signal simulation method. The internal memory may also store a computer program that, when executed by the processor, causes the processor to perform a signal simulation method. The output interface is used for outputting information. It will be appreciated by those skilled in the art that the structure shown in fig. 9 is merely a block diagram of a portion of the structure associated with the present application and is not limiting of the computer device to which the present application applies, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, the signal simulation method provided herein may be implemented in the form of a computer program that is executable on a computer device as shown in fig. 9. The memory of the computer device may store the various program templates that make up the signal simulation means. Such as an acquisition module 702 and a conversion output module 704.
A computer device comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to perform the steps of: receiving a signal simulation instruction, and acquiring a lead digital signal corresponding to each physiological index according to the signal simulation instruction; and converting the lead digital signals corresponding to each physiological index into lead analog signals, and outputting the lead analog signals through an output interface corresponding to the physiological index.
In one embodiment, the computer program, when executed by the processor, is further configured to perform the following steps after receiving signal simulation instructions: acquiring the frequency parameter and/or the amplitude parameter corresponding to a target physiological index of which the frequency or the amplitude needs to be adjusted; adjusting the corresponding lead digital signals according to the frequency parameters and/or the amplitude parameters to obtain adjusted target lead digital signals; the converting the lead digital signal corresponding to each physiological index into a lead analog signal, and outputting the lead analog signal through an output interface corresponding to the physiological index comprises: and converting the target lead digital signal into a target lead analog signal, and outputting the target lead analog signal through an output interface corresponding to the target physiological index.
A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of: receiving a signal simulation instruction, and acquiring a lead digital signal corresponding to each physiological index according to the signal simulation instruction; and converting the lead digital signals corresponding to each physiological index into lead analog signals, and outputting the lead analog signals through an output interface corresponding to the physiological index.
In one embodiment, the computer program, when executed by the processor, is further configured to perform the following steps after receiving signal simulation instructions: acquiring the frequency parameter and/or the amplitude parameter corresponding to a target physiological index of which the frequency or the amplitude needs to be adjusted; adjusting the corresponding lead digital signals according to the frequency parameters and/or the amplitude parameters to obtain adjusted target lead digital signals; the converting the lead digital signal corresponding to each physiological index into a lead analog signal, and outputting the lead analog signal through an output interface corresponding to the physiological index comprises: and converting the target lead digital signal into a target lead analog signal, and outputting the target lead analog signal through an output interface corresponding to the target physiological index.
Those skilled in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by a computer program for instructing relevant hardware, where the program may be stored in a non-volatile computer readable storage medium, and where the program, when executed, may include processes in the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the various embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (8)
1. A signal simulator, the signal simulator comprising: the device comprises a power supply module, a control module, a signal storage module and a digital-to-analog conversion module;
the power supply module is used for supplying power to the signal simulator;
the signal storage module is connected with the power supply module and is used for storing lead digital signals corresponding to a plurality of physiological indexes; wherein each physiological index includes storing one or more corresponding lead digital signals;
the digital-to-analog conversion module is connected with the control module and is used for synchronously converting the lead digital signals into lead analog signals;
the control module is respectively connected with the signal storage module and the digital-to-analog conversion module and is used for sending control signals to the signal storage module and the digital-to-analog conversion module, controlling the signal storage module to provide the lead digital signals, controlling the digital-to-analog conversion module to carry out digital-to-analog conversion to obtain lead analog signals and synchronously outputting the lead analog signals;
the signal simulator includes: the output interfaces corresponding to the lead analog signals of different physiological indexes are different; a plurality of lead analog signals of the same physiological index correspond to a plurality of sub-output interfaces;
the output lead analog signal is at least one of an electroencephalogram signal, an electrooculogram signal, a mandibular electromyogram signal, an electrocardio signal, an electromyogram signal, an abdomen respiratory wave signal, a chest respiratory wave signal, a nose airflow waveform signal, a nose pressure waveform signal, a blood oxygen pulse wave signal, a snore signal and a body digital signal.
2. The signal simulator of claim 1, wherein the signal simulator further comprises: the amplitude frequency adjusting module is connected with the control module and is used for adjusting the frequency and/or the amplitude of the lead digital signal and sending the adjusted lead digital signal to the digital-to-analog conversion module;
the control module is also used for sending the lead digital signal to the amplitude frequency adjustment module for adjusting the frequency and/or the amplitude.
3. The signal simulator of claim 1, wherein the signal simulator further comprises: the key and the display screen are connected with the control module;
the key is used for setting frequency parameters and/or amplitude parameters for adjusting the lead digital signals;
the display screen is used for displaying the frequency parameter and/or the amplitude parameter of the key adjustment.
4. A method of signal simulation, the method comprising:
receiving a signal simulation instruction, and acquiring a lead digital signal corresponding to each physiological index according to the signal simulation instruction; wherein each physiological index includes storing one or more corresponding lead digital signals;
synchronously converting the lead digital signals corresponding to each physiological index into lead analog signals, and synchronously outputting the lead analog signals through an output interface corresponding to the physiological index; the output interfaces are different from the output interfaces corresponding to the lead analog signals of different physiological indexes, and the plurality of lead analog signals of the same physiological index correspond to the plurality of sub-output interfaces;
the output lead analog signal is at least one of an electroencephalogram signal, an electrooculogram signal, a mandibular electromyogram signal, an electrocardio signal, an electromyogram signal, an abdomen respiratory wave signal, a chest respiratory wave signal, a nose airflow waveform signal, a nose pressure waveform signal, a blood oxygen pulse wave signal, a snore signal and a body digital signal.
5. The method of claim 4, further comprising, after receiving the signal emulation instructions:
acquiring frequency parameters and/or amplitude parameters corresponding to target physiological indexes of which the frequency or amplitude needs to be adjusted;
adjusting the corresponding lead digital signals according to the frequency parameters and/or the amplitude parameters to obtain adjusted target lead digital signals;
the converting the lead digital signal corresponding to each physiological index into a lead analog signal, and outputting the lead analog signal through an output interface corresponding to the physiological index comprises:
and converting the target lead digital signal into a target lead analog signal, and outputting the target lead analog signal through an output interface corresponding to the target physiological index.
6. A signal simulation apparatus, the apparatus comprising:
the acquisition module is used for receiving the signal simulation instruction and acquiring the lead digital signals corresponding to the physiological indexes according to the signal simulation instruction; wherein each physiological index includes storing one or more corresponding lead digital signals;
the conversion output module is used for synchronously converting the lead digital signals corresponding to each physiological index into lead analog signals and synchronously outputting the lead analog signals through an output interface corresponding to the physiological index; the output interfaces are different from the output interfaces corresponding to the lead analog signals of different physiological indexes, and the plurality of lead analog signals of the same physiological index correspond to the plurality of sub-output interfaces;
the output lead analog signal is at least one of an electroencephalogram signal, an electrooculogram signal, a mandibular electromyogram signal, an electrocardio signal, an electromyogram signal, an abdomen respiratory wave signal, a chest respiratory wave signal, a nose airflow waveform signal, a nose pressure waveform signal, a blood oxygen pulse wave signal, a snore signal and a body digital signal.
7. A computer device comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of the method of any one of claims 4 or 5.
8. A computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of the method of any one of claims 4 or 5.
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