CN102160790A - In-vivo implanted monitoring system for living beings and wireless communication method for data monitored by same - Google Patents
In-vivo implanted monitoring system for living beings and wireless communication method for data monitored by same Download PDFInfo
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Abstract
The invention discloses an in-vivo implanted monitoring system for living beings and a wireless communication method for data monitored by the same. The in-vivo implanted monitoring system comprises a plurality of in-vivo monitoring devices, an in-vitro telemetering device and a monitoring center, wherein each in-vivo monitoring device wirelessly communicates with the in-vitro telemetering device; and the in-vitro telemetering device is in wireless communication connection with the monitoring center through a wireless communication module. In the method, the in-vitro telemetering device completes the sensing, allocation and control of wireless communication spectrum resources between the in-vivo monitoring devices and the in-vitro telemetering device in a unified mode, and functions of the in-vivo monitoring devices are simplified; meanwhile, the in-vitro telemetering device receives in-vivo signals by adopting an adaptive antenna array technology, and inhibits interference, so that the in-vivo monitoring devices can adopt simpler modulation method and lower transmitting power; therefore, the hardware complexity and energy consumption of the in-vivo monitoring devices are reduced, and the requirements on miniaturization, energy conservation, low cost and the like of the in-vivo monitoring devices are met.
Description
Technical field
The present invention relates to biological vivo implantation type monitoring technical field, be specifically related to a kind of asymmetric biological vivo implantation type monitoring device of transmitting-receiving and Monitoring Data wireless communications method thereof that is applicable to animal.
Background technology
Along with the development of modern livestock breeding industry, also growing to the demand of aspect data monitorings such as the growth of animal, disease and analysis.Biological vivo implantation type monitoring device passes through in the pick off implantable bioartificial body, can directly contact biological intracorporeal organ and tissue, accurately measure biological intravital various physiology, biochemical parameter (as blood pressure, body temperature, pH value etc.), all significant to aspects such as the monitoring growth of animal situation in livestock-raising, disease prevention, scientific feedings.
Publication number is CN 201088578, open day is the patent of invention " vivo implantation type body temperature wireless real time monitoring system " on July 23rd, 2008, a kind of vivo implantation type body temperature real-time monitoring system that is applicable to the animal heat monitoring is provided, has overcome the shortcoming that existing body temperature wireless monitoring system can not be applied to the animal heat monitoring.But this system can only be used for temperature monitoring, has monitoring limitation and functional limitation.This system utilizes fixed transmit frequency body internal information, may have other users or interference user on this frequency range, thereby the body internal information is caused interference to external transmission.
In order to overcome the interference that other users cause the information transmission on fixed frequency range, the frequency spectrum perception technology is used on the implantation medical equipment technical field to some extent.Publication number is CN 101345535A, open day is the patent of invention " based on information transferring method in the frequency spectrum perception technology wireless body area network medical scene " on January 14th, 2009, finds out the frequency spectrum cavity-pocket of optimal transmission performance and detects this empty node location with the frequency spectrum perception technology.Its principle is that each node carries out segmentation to interested spectral range and detects in the wireless body area network, with the transmission and relatively find out the frequency spectrum cavity-pocket with global optimum's transmission performance and detect this empty node location between each node in vivo of the frequency spectrum cavity-pocket performance parameter that detects.Because monitoring device needs to transmit the body internal information to external telemetering equipment for a long time in the body, require the interior monitoring device of body must possess performances such as volume is little, low in energy consumption, circuit is simple.This invention utilizes the interior monitoring device of body to detect idle frequency range, be that monitoring device need be finished comparatively complex calculations and processing capacity in the body, cause monitoring device circuit complexity in the body, power consumption to increase, run counter to the design principle of monitoring device in the body, so this technology can not solve the contradiction between performance and hardware complexity, energy consumption of monitoring device in the body well.
Summary of the invention
At the prior art above shortcomings, the purpose of this invention is to provide biological vivo implantation type monitoring system and Monitoring Data wireless communications method thereof.This system utilizes external telemetering equipment to unify perception, distribution and the control of wireless communication spectrum resource between interior monitoring device of perfect aspect and the external telemetering equipment, simplified the function that monitoring device need be finished in the body, simultaneously external telemetering equipment adopts adaptive antenna array scheme to receive signal in the body, suppress to disturb, make the interior monitoring device of body can adopt more simple modulator approach and lower transmitting power, thereby reduced the hardware complexity and the energy consumption of monitoring device in the body, met requirements such as monitoring device miniaturization in the body, energy-conservation, low cost.
In order to achieve the above object, the present invention adopts following technical scheme:
Biological vivo implantation type monitoring system, comprise monitoring device in the several body, external telemetering equipment and Surveillance center, radio communication between monitoring device and the external telemetering equipment in each body, external telemetering equipment is connected with the Surveillance center radio communication by wireless communication module;
Described external telemetering equipment detects idle frequency range, sends control signals to monitoring device in each body;
Monitoring device receives the control signal of external telemetering equipment in the described body, and carrier frequency is transferred to the specified tranmitting frequency of control signal; Also gather animal body physiological, biochemical parameter in the monitoring device in the body, be modulated into carrier signal and be transmitted into external telemetering equipment;
Described Surveillance center comprises the wireless communication module that communicates with external telemetering equipment, and Surveillance center receives the Monitoring Data that external telemetering equipment sends, and judges the health of animal, the growth rhythm of statistics animal.
Above-mentioned biological vivo implantation type monitoring system, described external telemetering equipment comprises adaptive antenna array transceiver module, demodulates information module, frequency spectrum sensing module, control signal manipulator, microprocessor, wireless communication module, display screen; Wherein, adaptive antenna array transceiver module, microprocessor are connected with demodulates information module, frequency spectrum sensing module, control signal manipulator respectively, and microprocessor also is connected with display screen, wireless communication module respectively.The adaptive antenna array transceiver module is regulated the weight coefficient of each array element of antenna array automatically according to the external signal environment, make the sense of monitoring device in the directional diagram main beam alignment body, aim at interference radiating way zero point,, suppress to disturb dynamically from the spatial emission control signal with receive signal in the body.Frequency spectrum sensing module detects idle frequency range, sends court verdict in little processing.Body physiological, biochemical parameter that microprocessor is sent here the demodulates information module are handled, and signal processing results is presented on the display screen; According to the court verdict of frequency spectrum sensing module, the control signal that will comprise idle band information is sent into the control signal manipulator.The control signal manipulator is modulated to carrier signal with control signal, is transmitted into monitoring device in the body through the adaptive antenna array transceiver module.
Above-mentioned biological vivo implantation type monitoring system, described adaptive antenna array transceiver module comprises the antenna array that connects in turn, radio frequency unit, A/D converter, digital beam forms unit and adaptive processor, the antenna array received signal is through being converted into digital signal through A/D converter again after the radio frequency processing, digital beam forms the unit by after each beam weighting is sued for peace, when output, form a wave beam with disturbance null, equivalence is that the beam shape of reception antenna produces adaptive change, and described adaptive processor is used for adjusting the variable weighting coefficients in the wave beam formation unit.
Above-mentioned biological vivo implantation type monitoring system, described demodulates information module comprise binary system amplitude-shift keying demodulator of PM signal PM and the delta-demodulators that connects in turn, and the demodulates information module is connected with adaptive array antenna array transceiver module, microprocessor; The signal of adaptive antenna array transceiver module output is sent into the demodulates information module, obtain digital signal through binary system amplitude-shift keying demodulator of PM signal PM, the delta-demodulators demodulated digital signal, obtain the signal of telecommunication of animal body physiological, biochemical parameter, signal in the body after the demodulation is sent into microprocessor.
Above-mentioned biological vivo implantation type monitoring system, described frequency spectrum sensing module comprises energy detection module, first judging module 1, cyclostationary characteristic detection module and second judging module that connects in turn, and frequency spectrum sensing module is connected with adaptive antenna array transceiver module, microprocessor; Energy detection module detects the received signal of a certain band limits, sends into the cyclostationary characteristic detection module by the signal of energy measuring; The signal energy that the cyclostationary characteristic detection module passes through energy measuring detects once more, if still detect this frequency range be idle frequency range then this frequency range for can utilize frequency range, court verdict is sent in the microprocessor.
Above-mentioned biological vivo implantation type monitoring system, monitoring device comprises pick off, body internal information modulation module, control signal demodulator and radio-frequency (RF) receiving and transmission module in the described body, wherein, pick off, body internal information modulation module, radio-frequency (RF) receiving and transmission module connect in turn, and the control signal demodulator is connected with body internal information modulation module, radio-frequency (RF) receiving and transmission module respectively; Described radio-frequency (RF) receiving and transmission module receives the control signal of external telemetering equipment, sends into body internal information modulation module after the demodulation of control signal demodulator, thereby carrier frequency is transferred to the specified tranmitting frequency of control signal; The intravital physiology of sensor acquisition animal, biochemical parameter are sent into body internal information modulation module and are modulated to carrier signal, are transmitted into external telemetering equipment through radio-frequency (RF) receiving and transmission module.
Above-mentioned biological vivo implantation type monitoring system, described body internal information modulation module comprise amplifier, delta modulator and the binary system amplitude-shift keying signal modulator that connects in turn, and body internal information modulation module is connected with described pick off, radio-frequency (RF) receiving and transmission module; Described pick off is converted into the signal of telecommunication with animal body physiological, the biochemical parameter that collects, and sends into delta modulator after amplifier amplifies; The signal of telecommunication after delta modulator will amplify is converted into digital signal, binary system amplitude-shift keying signal modulator is modulated to carrier signal with digital signal, the amplitude of sinusoidal carrier changes with digital signal, and the frequency of sinusoidal carrier is the specified tranmitting frequency of control signal.
The Monitoring Data wireless communications method of above-mentioned biological vivo implantation type monitoring system may further comprise the steps:
Step 1: when external telemetering equipment need be communicated by letter with monitoring device in the body, the frequency spectrum sensing module in the external telemetering equipment detected the signal energy of this frequency range in needing the spectral range of perception; Frequency range by frequency spectrum detection then is idle frequency range, promptly utilizes this band transmissions information;
Step 2: the court verdict of frequency spectrum sensing module is sent into microprocessor in the external telemetering equipment; Microprocessor is determined the scope of transmit frequency band according to the court verdict of frequency spectrum sensing module, and the control signal that will comprise this transmit frequency band information is transmitted into monitoring device in the body through the adaptive antenna array transceiver module;
Step 3: the radio-frequency (RF) receiving and transmission module of monitoring device receives the control signal of external telemetering equipment in the body, sends into body internal information modulation module after the demodulation of control signal demodulator, thereby carrier frequency is transferred to the specified tranmitting frequency of control signal; Monitoring device utilizes increment modulation method that the detected signal of body inner sensor is carried out digital modulation in the body, utilize binary system amplitude-shift keying that signal in the body is modulated into the carrier wave of frequency for tranmitting frequency then, the body internal information is transferred to external telemetering equipment by radio-frequency (RF) receiving and transmission module;
Step 4: the adaptive antenna array transceiver module of external telemetering equipment is regulated the weight coefficient of each array element of antenna array automatically according to the external signal environment, make the sense of monitoring device in the directional diagram main beam alignment body, aim at interference radiating way zero point, receive signal in the body, suppress to disturb; The demodulates information module is carried out demodulation to the body internal information that the adaptive antenna array transceiver module receives, signal after the demodulation sent into carry out signal processing in the microprocessor, and signal processing results is presented on the display screen, the variation of monitoring animal body physiological, biochemical parameter, and send Monitoring Data to Surveillance center; Surveillance center receives the Monitoring Data that external telemetering equipment sends, and judges the health of animal, the growth rhythm of statistics animal.
Above-mentioned method, in step 1, frequency spectrum sensing module adopts two stage detection methods, main may further comprise the steps:
Step 1.1: external telemetering equipment is in needing the spectral range of perception, at first utilize energy detection method to detect the interior signal energy of this frequency range, if the signal energy that energy measuring obtains is lower than predefined energy threshold, then energy measuring is passed through, and adopts the cyclostationary characteristic detection method to detect then; If the signal energy that energy measuring obtains is higher than predefined energy threshold, then this frequency range has other users or interference user, need restart energy measuring on other frequency ranges, passes through until the energy measuring of a certain frequency range.
Step 1.2: the signal energy that external telemetering equipment passes through energy measuring adopts the cyclostationary characteristic detection method to detect once more; If it is idle frequency range that frequency spectrum sensing module still detects this frequency range, then utilize this band transmissions information, determine that this frequency range is a transmit frequency band; If frequency spectrum sensing module detects this frequency range for can not utilize frequency range, promptly this frequency range then continues other frequency ranges of search, until detecting idle frequency range by other CUs or there is interference user.
Above-mentioned method, in step 3, described body internal information transmission method comprises two kinds of frequency division multiplexing and time division multiplexes, if information transferring method is a frequency division multiplexing, then monitoring device is shared idle frequency range in each body, and interior at one time transmission body internal information is to external telemetering equipment; If information transferring method is a time division multiplex, then monitoring device wheel flow transmission body internal information is cut apart each road signal to external telemetering equipment in time in each body.
The present invention is applicable to asymmetric biological vivo implantation type monitoring system of the transmitting-receiving of animal and Monitoring Data wireless communications method thereof, and the present invention has following several advantages:
1, the present invention is applicable to the animal field, and Surveillance center receives the Monitoring Data that external telemetering equipment sends, and judges the health of animal, and the growth rhythm of statistics animal helps science to raise and disease prevention.
2, external telemetering equipment of the present invention adopts the idle frequency range of frequency spectrum perception technology for detection, send control signals to monitoring device in the body, the function that monitoring device need be finished in the body has been simplified in perception, distribution and the control of wireless communication spectrum resource between monitoring device and the external telemetering equipment in the unified perfect aspect.
3, external telemetering equipment employing adaptive antenna array scheme of the present invention receives signal in the body, suppresses to disturb, and makes the interior monitoring device of body can adopt comparatively simple modulating-coding technology and lower transmitting power can finish communication function.
4, monitoring device adopts simple modulation system in the body of the present invention, does not have A/D converter, has reduced the hardware complexity and the transmitting power of monitoring device in the body, meets requirements such as monitoring device miniaturization in the body, energy-conservation, low cost.
Description of drawings
Fig. 1 is the biological vivo implantation type monitoring system overall schematic in the embodiment.
Fig. 2 is the external telemetering equipment structured flowchart in the embodiment.
Fig. 3 is the interior monitoring device structured flowchart of the body in the embodiment.
Fig. 4 is the frequency spectrum sensing module block diagram in the embodiment.
Fig. 5 is the biological vivo implantation type Monitoring Data wireless communications method schematic flow sheet in the embodiment.
Fig. 6 is two stage detection method schematic flow sheets in the embodiment.
Fig. 7 is the energy detection module block diagram in the embodiment.
Fig. 8 is the steady feature detection module frame chart of the frequency spectrum in the embodiment.
Fig. 9 is the adaptive antenna array structural representation in the embodiment.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but content of the present invention and embodiment are not limited thereto.
Shown in Figure 1 is the biological vivo implantation type monitoring system of embodiment.This system comprise 4 individual in monitoring devices, external telemetering equipment and Surveillance center, can not communicate by letter between monitoring device A, B, C, the D in each body, radio communication between monitoring device and the external telemetering equipment in the body, external telemetering equipment connects by wireless communication module and Surveillance center.External telemetering equipment detects idle frequency range, sends control signals to monitoring device in each body, and the tranmitting frequency of monitoring device in each body is transferred on the idle frequency range.Monitoring device receives the control signal of external telemetering equipment in each body, and carrier frequency is transferred to the specified tranmitting frequency of control signal; The intravital physiology of sensor acquisition animal, biochemical parameter are modulated into carrier signal through body internal information modulation module and are transmitted into external telemetering equipment.Surveillance center receives the Monitoring Data that external telemetering equipment sends, and judges the health of animal, the growth rhythm of statistics animal.
As shown in Figure 2, external telemetering equipment comprises adaptive antenna array transceiver module, demodulates information module, frequency spectrum sensing module, control signal manipulator, microprocessor, wireless communication module, display screen.Wherein, adaptive antenna array transceiver module, microprocessor are connected with demodulates information module, frequency spectrum sensing module, control signal manipulator respectively, and microprocessor is connected with display screen, wireless communication module respectively.The adaptive antenna array transceiver module is regulated the weight coefficient of each array element of antenna array automatically according to the external signal environment, make the sense of monitoring device in the directional diagram main beam alignment body, aim at interference radiating way zero point,, suppress to disturb dynamically from the spatial emission control signal with receive signal in the body.Frequency spectrum sensing module detects idle frequency range, sends court verdict in little processing.Body physiological, biochemical parameter that microprocessor is sent here the demodulates information module are handled, and signal processing results is presented on the display screen; According to the court verdict of frequency spectrum sensing module, the control signal that will comprise idle band information is sent into the control signal manipulator.The control signal manipulator is modulated to carrier signal with control signal, is transmitted into monitoring device in the body through the adaptive antenna array transceiver module.
As shown in Figure 3, monitoring device comprises pick off, body internal information modulation module, control signal demodulator and radio-frequency (RF) receiving and transmission module in the body.Wherein, pick off, body internal information modulation module, radio-frequency (RF) receiving and transmission module connect in turn, and the control signal demodulator is connected with body internal information modulation module, radio-frequency (RF) receiving and transmission module respectively.Radio-frequency (RF) receiving and transmission module receives the control signal of external telemetering equipment, sends into body internal information modulation module after the demodulation of control signal demodulator, thereby carrier frequency is transferred to the specified tranmitting frequency of control signal.The intravital physiology of sensor acquisition animal, biochemical parameter are sent into body internal information modulation module and are modulated to carrier signal, are transmitted into external telemetering equipment through radio-frequency (RF) receiving and transmission module.
As shown in Figure 4, frequency spectrum sensing module mainly is made up of energy detection module, first judging module and cyclostationary characteristic detection module and second judging module.Mainly finish following function: energy detection module detects the signal energy of a certain band limits, sends into the cyclostationary characteristic detection module by the signal of energy measuring; The signal energy that the cyclostationary characteristic detection module passes through energy measuring detects once more, is idle frequency range if still detect this frequency range, can utilize this channel transmission information, can determine that this frequency range is a transmit frequency band, sends court verdict into microprocessor.
Embodiment of the invention flow chart mainly may further comprise the steps as shown in Figure 5:
Step 1: when external telemetering equipment need be communicated by letter with monitoring device in the body, the frequency spectrum sensing module in the external telemetering equipment detected the signal energy of this frequency range in needing the spectral range of perception.Frequency range by frequency spectrum detection then is idle frequency range, can utilize this band transmissions information.The workflow diagram of frequency spectrum sensing module is as shown in Figure 6, and is specific as follows:
Step 1.1: as shown in Figure 7, external telemetering equipment is at spectral range that needs perception such as 10MHZ---and in the frequency range of 20MHZ, utilize energy detection method to detect the signal energy of this frequency range.The signal that adaptive antenna array transceiver module in the external telemetering equipment receives at first passes through the band filter pre-filtering, calculates signal energy T in the corresponding band by square law device and integrator again.
Predefined energy threshold is meant that the signal that main users is arranged in this frequency range occurs and this signal energy when more weak, the interior energy value of this frequency range this moment that utilizes energy detection method to calculate.The common meeting of predefined energy threshold is real-time change along with the difference of signal, but the fixed value T1 that will be provided with in the embodiments of the invention by measuring in advance is predefined energy threshold.If it is threshold T 1 that the signal energy T that energy measuring obtains is lower than predefined energy threshold, then energy measuring is passed through, and adopts the cyclostationary characteristic detection method to detect once more.If the signal energy T that energy measuring obtains is higher than predefined energy threshold T1, illustrate that then this frequency range has other users or interference user, then need on other frequency ranges, restart energy measuring, pass through until the energy measuring of a certain frequency range.
Step 1.2: as shown in Figure 8, the signal energy that energy measuring is passed through adopts the cyclostationary characteristic detection method to detect once more.It is to utilize the spectrum correlation function to detect the existence that the cycle specificity that exists in the received signal determines whether other users that cyclostationary characteristic detects.
After the A/D conversion of signal process and FFT conversion by energy measuring, signal spectrum is launched on the two-dimensional space that a-f constitutes according to the parameter a that sets.Because the FFT conversion when carrier modulation that adopts during the signal transmission and reception makes component of signal show stronger circular dependency, thereby obtain signal to noise ratio snr in this frequency range according to the energy value that the various computing of the signal characteristic of component of signal and noise component(s) goes out two components, this signal to noise ratio is compared with predefined signal to noise ratio snr 1.Wherein, predefined signal to noise ratio snr 1 is the maximum signal to noise ratio value that experiment measuring obtains when not having other users or interference user to occur in this frequency range.
If the signal to noise ratio snr in this frequency range shows then that less than predefined signal to noise ratio snr 1 this frequency range is idle frequency range, can utilize this band transmissions information, determine that this frequency range is vivo implantation type medical treatment device transmission information emission frequency range.If the signal to noise ratio snr in this frequency range then shows this frequency range for can not utilize frequency range more than or equal to predefined signal to noise ratio snr 1, promptly this frequency range then continues to search for other frequency ranges, until detecting idle frequency range by other CUs or there is interference user.
Step 2: the court verdict of frequency spectrum sensing module is sent into microprocessor in the external telemetering equipment.Microprocessor is determined the scope of transmit frequency band according to the court verdict of frequency spectrum sensing module, and the control signal that will comprise this transmit frequency band information is delivered to the control signal manipulator.The control signal manipulator can adopt Ditital modulation methods such as ASK, FSK, and control signal is tuned on the ISM medical science frequency range, is transmitted into monitoring device in the body through the adaptive antenna array transceiver module.
Step 3: the radio-frequency (RF) receiving and transmission module of monitoring device receives the control signal of external telemetering equipment in the body, sends into body internal information modulation module after the demodulation of control signal demodulator, thereby carrier frequency is transferred to the specified tranmitting frequency of control signal.Sensor acquisition in the body in the checkout gear as blood pressure, body temperature, pH value etc., is converted into the signal of telecommunication with these physiology, biochemical parameter to the intravital physiology of animal, biochemical parameter, amplifies by amplifier.Amplified analog signal goes up discrete digital pulse signal through the delta modulator time that is converted into.In delta modulation, a relative size with an adjacent sample value of coded representation.Through after the delta modulation, body internal information modulation module adopts binary system amplitude-shift keying that signal in the body is modulated into the carrier wave that frequency is a tranmitting frequency.On the specified idle frequency range of control signal, the carrier signal that the adaptive antenna array transceiver module will carry animal body physiological, biochemical parameter is transmitted into external telemetering equipment.If information transferring method is a frequency division multiplexing, then monitoring device is shared idle frequency range in each body, and interior at one time transmission body internal information is to external telemetering equipment; If information transferring method is a time division multiplex, then monitoring device wheel flow transmission body internal information is cut apart each road signal to external telemetering equipment in time in each body.
Step 4: as shown in Figure 9, adaptive antenna array transceiver module in the external telemetering equipment is regulated the weight coefficient of each array element of antenna array automatically according to the external signal environment, make the sense of monitoring device in the directional diagram main beam alignment body, aim at interference radiating way zero point, dynamically receive signal in the body, suppress to disturb from the space.The demodulates information module is carried out demodulation to the body internal information that the adaptive antenna array transceiver module receives, signal after the demodulation sent into carry out signal processing in the microprocessor, and signal processing results is presented on the display screen, the variation of monitoring animal body physiological, biochemical parameter, and send Monitoring Data to Surveillance center.Surveillance center receives the Monitoring Data that external telemetering equipment sends, and judges biological health, and the growth rhythm that statistics is biological helps science to raise and disease prevention.
Claims (10)
1. biological vivo implantation type monitoring system, it is characterized in that comprising monitoring device in the several body, external telemetering equipment and Surveillance center, radio communication between monitoring device and the external telemetering equipment in each body, external telemetering equipment is connected with the Surveillance center radio communication by wireless communication module;
Described external telemetering equipment detects idle frequency range, sends control signals to monitoring device in each body;
Monitoring device receives the control signal of external telemetering equipment in the described body, and carrier frequency is transferred to the specified tranmitting frequency of control signal; Also gather animal body physiological, biochemical parameter in the monitoring device in the body, be modulated into carrier signal and be transmitted into external telemetering equipment;
Described Surveillance center comprises the wireless communication module that communicates with external telemetering equipment, and Surveillance center receives the Monitoring Data that external telemetering equipment sends.
2. biological vivo implantation type monitoring system according to claim 1 is characterized in that described external telemetering equipment comprises adaptive antenna array transceiver module, demodulates information module, frequency spectrum sensing module, control signal manipulator, microprocessor, wireless communication module, display screen; Wherein, adaptive antenna array transceiver module, microprocessor are connected with demodulates information module, frequency spectrum sensing module, control signal manipulator respectively, and microprocessor also is connected with display screen, wireless communication module respectively.
3. biological vivo implantation type monitoring system according to claim 2, it is characterized in that described adaptive antenna array transceiver module comprises the antenna array that connects in turn, radio frequency unit, A/D converter, digital beam forms unit and adaptive processor, the antenna array received signal is through being converted into digital signal through A/D converter again after the radio frequency processing, digital beam forms the unit by after each beam weighting is sued for peace, when output, form a wave beam with disturbance null, equivalence is that the beam shape of reception antenna produces adaptive change, and described adaptive processor is used for adjusting the variable weighting coefficients in the wave beam formation unit.
4. biological vivo implantation type monitoring system according to claim 2, it is characterized in that described demodulates information module comprises binary system amplitude-shift keying demodulator of PM signal PM and the delta-demodulators that connects in turn, the demodulates information module is connected with adaptive array antenna array transceiver module, microprocessor; The signal of adaptive antenna array transceiver module output is sent into the demodulates information module, obtain digital signal through binary system amplitude-shift keying demodulator of PM signal PM, the delta-demodulators demodulated digital signal, obtain the signal of telecommunication of animal body physiological, biochemical parameter, signal in the body after the demodulation is sent into microprocessor.
5. biological vivo implantation type monitoring system according to claim 2, it is characterized in that described frequency spectrum sensing module comprises energy detection module, first judging module 1, cyclostationary characteristic detection module and second judging module that connects in turn, frequency spectrum sensing module is connected with adaptive antenna array transceiver module, microprocessor; Energy detection module detects the received signal of a certain band limits, sends into the cyclostationary characteristic detection module by the signal of energy measuring; The signal energy that the cyclostationary characteristic detection module passes through energy measuring detects once more, if still detect this frequency range be idle frequency range then this frequency range for can utilize frequency range, court verdict is sent in the microprocessor.
6. biological vivo implantation type monitoring system according to claim 1, it is characterized in that monitoring device comprises pick off, body internal information modulation module, control signal demodulator and radio-frequency (RF) receiving and transmission module in the described body, wherein, pick off, body internal information modulation module, radio-frequency (RF) receiving and transmission module connect in turn, and the control signal demodulator is connected with body internal information modulation module, radio-frequency (RF) receiving and transmission module respectively; Described radio-frequency (RF) receiving and transmission module receives the control signal of external telemetering equipment, sends into body internal information modulation module after the demodulation of control signal demodulator, thereby carrier frequency is transferred to the specified tranmitting frequency of control signal; The intravital physiology of sensor acquisition animal, biochemical parameter are sent into body internal information modulation module and are modulated to carrier signal, are transmitted into external telemetering equipment through radio-frequency (RF) receiving and transmission module.
7. biological vivo implantation type monitoring system according to claim 6, it is characterized in that described body internal information modulation module comprises amplifier, delta modulator and the binary system amplitude-shift keying signal modulator that connects in turn, body internal information modulation module is connected with described pick off, radio-frequency (RF) receiving and transmission module; Described pick off is converted into the signal of telecommunication with animal body physiological, the biochemical parameter that collects, and sends into delta modulator after amplifier amplifies; The signal of telecommunication after delta modulator will amplify is converted into digital signal, binary system amplitude-shift keying signal modulator is modulated to carrier signal with digital signal, the amplitude of sinusoidal carrier changes with digital signal, and the frequency of sinusoidal carrier is the specified tranmitting frequency of control signal.
8. the Monitoring Data wireless communications method of each described biological vivo implantation type monitoring system of claim 1~7 is characterized in that may further comprise the steps:
Step 1: when external telemetering equipment need be communicated by letter with monitoring device in the body, the frequency spectrum sensing module in the external telemetering equipment detected the signal energy of this frequency range in needing the spectral range of perception; Frequency range by frequency spectrum detection then is idle frequency range, promptly utilizes this band transmissions information;
Step 2: the court verdict of frequency spectrum sensing module is sent into microprocessor in the external telemetering equipment; Microprocessor is determined the scope of transmit frequency band according to the court verdict of frequency spectrum sensing module, and the control signal that will comprise this transmit frequency band information is transmitted into monitoring device in the body through the adaptive antenna array transceiver module;
Step 3: the radio-frequency (RF) receiving and transmission module of monitoring device receives the control signal of external telemetering equipment in the body, sends into body internal information modulation module after the demodulation of control signal demodulator, thereby carrier frequency is transferred to the specified tranmitting frequency of control signal; Monitoring device utilizes increment modulation method that the detected signal of body inner sensor is carried out digital modulation in the body, utilize binary system amplitude-shift keying that signal in the body is modulated into the carrier wave of frequency for tranmitting frequency then, the body internal information is transferred to external telemetering equipment by radio-frequency (RF) receiving and transmission module;
Step 4: the adaptive antenna array transceiver module of external telemetering equipment is regulated the weight coefficient of each array element of antenna array automatically according to the external signal environment, make the sense of monitoring device in the directional diagram main beam alignment body, aim at interference radiating way zero point, receive signal in the body, suppress to disturb; The demodulates information module is carried out demodulation to the body internal information that the adaptive antenna array transceiver module receives, signal after the demodulation sent into carry out signal processing in the microprocessor, and signal processing results is presented on the display screen, the variation of monitoring animal body physiological, biochemical parameter, and send Monitoring Data to Surveillance center; Surveillance center receives the Monitoring Data that external telemetering equipment sends, and judges the health of animal, the growth rhythm of statistics animal.
9. method according to claim 8 is characterized in that in step 1, and frequency spectrum sensing module adopts two stage detection methods, may further comprise the steps:
Step 1.1: external telemetering equipment is in needing the spectral range of perception, at first utilize energy detection method to detect the interior signal energy of this frequency range, if the signal energy that energy measuring obtains is lower than predefined energy threshold, then energy measuring is passed through, and adopts the cyclostationary characteristic detection method to detect then; If the signal energy that energy measuring obtains is higher than predefined energy threshold, then this frequency range has other users or interference user, need restart energy measuring on other frequency ranges, passes through until the energy measuring of a certain frequency range;
Step 1.2: the signal energy that external telemetering equipment passes through energy measuring adopts the cyclostationary characteristic detection method to detect once more; If it is idle frequency range that frequency spectrum sensing module still detects this frequency range, then utilize this band transmissions information, determine that this frequency range is a transmit frequency band; If frequency spectrum sensing module detects this frequency range for can not utilize frequency range, promptly this frequency range then continues other frequency ranges of search, until detecting idle frequency range by other CUs or there is interference user.
10. method according to claim 8, it is characterized in that in step 3, described body internal information transmission method comprises two kinds of frequency division multiplexing and time division multiplexes, if information transferring method is a frequency division multiplexing, then monitoring device is shared idle frequency range in each body, and interior at one time transmission body internal information is to external telemetering equipment; If information transferring method is a time division multiplex, then monitoring device wheel flow transmission body internal information is cut apart each road signal to external telemetering equipment in time in each body.
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CN107593498A (en) * | 2017-09-07 | 2018-01-19 | 西北农林科技大学 | A kind of milk cow body temperature real-time monitoring system and method |
CN109475295A (en) * | 2016-06-29 | 2019-03-15 | 皇家飞利浦有限公司 | Method and apparatus for health equipment and wearable/implantable devices |
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US9764160B2 (en) | 2011-12-27 | 2017-09-19 | HJ Laboratories, LLC | Reducing absorption of radiation by healthy cells from an external radiation source |
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CN107593498A (en) * | 2017-09-07 | 2018-01-19 | 西北农林科技大学 | A kind of milk cow body temperature real-time monitoring system and method |
CN111432724A (en) * | 2017-10-05 | 2020-07-17 | 美国贝鲁特大学 | Novel non-invasive biological, chemical marker and tracer monitoring device for monitoring blood containing glucose using adaptive radio frequency circuit and antenna design |
CN111245471A (en) * | 2020-04-03 | 2020-06-05 | 山西科泰航天防务技术股份有限公司 | Multi-target real-time telemetering method and system |
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