CN202078305U - Implanted type physiological data measuring device - Google Patents

Abstract

The utility model discloses an implanted type physiological data measuring device which is characterized in that a temperature measuring module measures a thermistor connected with a bridge voltage dividing circuit and transmits voltage signals to a signal processing module; a pulse measuring module senses the ambient pressure and transmits electrical signals to the signal processing module; the signal processing module figures out the temperature value and the value of pulse rates per minute, averages the values and transmits the average values to an RFID (radio frequency identification) module; and the RFID module transmits the temperature value and the pulse rate data outside an animal body and receives data measuring commands outside the animal body to control the dormancy and awakening of the modules above. The implanted type physiological data measuring device can obtain temperature and pulse data of raised livestock with low cost, the measuring error is reduced, and the service life is prolonged.

Description

A kind of implanted physiological data measuring device

Technical field

The invention belongs to livestock-raising and agricultural engineering technology field, relate to a kind of device of animal physiology DATA REASONING.

Background technology

Culture the temperature of domestic animal, physiological status index that pulse reflects is extremely important for the physiological status of analytical judgment animal.In the livestock culturing industry, culture as pig, cattle, sheep, in time obtain temperature, the pulse physiological data of domestic animal individuality, can effectively grasp individual physiological state, very great for the individual meaning unusual, the disease probability of analytical judgment.Culture temperature, the pulse data of domestic animal and measure, at first require to carry out in-vivo measurement to reduce the error that external environment influence produces, next needs measuring device to have wireless data transmission and power consumption control function.But existing can not the adaptation for a long time far away at the temperature of culturing domestic animal and pulses measure method and means, carried out the physiological data measurement requirement to each individuality, cause promptly and accurately to judge the physiological status of animal, delayed unusual individual screening Best Times, incured loss through delay individual eqpidemic disease and early find early treatment opportunity even caused eqpidemic disease spreading and propagation in culturing population.

Find by retrieval, the applying date is on November 12nd, 2007, application number is that 200710056301.6 Chinese patent " vivo implantation type body temperature wireless real time monitoring system " adopts temperature measuring equipment and external receiving system in the body, measures temperature in the animal body by the CRZ platinum thin film platinum resistance thermometer sensor, chip that implants, and has solved that animal heat is difficult for monitoring and high virus spread laboratory animal body temperature is monitored unsafe problem.But this patent of invention does not solve low-cost large-scale application and cultures the problem that domestic animal pulse physiological data is measured, and, disease probability analysis unusual for animal individual supported not enough.

Find by retrieval in addition, date of application is on 05 14th, 2010, application number is that 201010172189.4 Chinese patent " animal individual information monitoring and radio transmitting method " provides by pick off, radio frequency chip information such as animal activity, animal attitude, animal heat, animal pulse are gathered and wireless transmission, in order to the animal physiological data are gathered the method with the behavior parameter detecting.But this patent of invention only proposes to use multiple sensors to combine with radio frequency chip in principle, does not describe in detail and measures the method or the device of culturing domestic animal temperature and pulse, makes those of ordinary skill of the same trade can't reproduce these innovation and creation.

Summary of the invention

Can not low-cost large-scale application and lack in order to overcome prior art to culturing the deficiency of domestic animal pulses measure disappearance, the invention provides a kind of implanted and culture the animal physiology data measurement unit, can carry out in-vivo measurement to breed domestic animal temperature, pulse physiological data cheaply, in time monitor culturing the domestic animal individual physiological state with realization, provide comparatively competent physiological data to support individual unusual, disease probability remote analysis judgement.

The technical solution adopted for the present invention to solve the technical problems is: a kind of implanted physiological data measuring device, comprise temperature-measuring module, pulses measure module, signal processing module, RFID module and power management module, temperature-measuring module comprises critesistor, electric bridge bleeder circuit and ADC (analog-to-digital conversion device), by the electric bridge bleeder circuit critesistor is powered up, measure voltage signal by resistance, by ADC voltage signal is converted into digital signal, gives signal processing module with this digital data transmission again; The pulses measure module comprises piezoelectric element, preamplifier state, proportional amplifier, band filter and ADC, piezoelectric element is experienced ambient pressure and is transferred out the signal of telecommunication, by preamplifier state and proportional amplifier signal is carried out processing and amplifying, carry out noise filtering by band filter, by ADC the signal of telecommunication is converted into digital signal again, and with this digital data transmission to signal processing module; Signal processing module comprises micro controller, memory element and crystal oscillator, provide operating frequency by crystal oscillator for signal processing module, under this operating frequency, micro controller is handled the digital signal that the temperature-measuring module transmission comes, calculate by known divider resistance resistance and the electric bridge bleeder circuit both end voltage digital signal that records, obtain the critesistor resistance, and calculate corresponding temperature value according to the Steinhart-Hart equation and be temporary in memory element, micro controller is calculated the digital signal that the transmission of pulses measure module comes again, beat pulse is counted in the arrival of digital signal each time one time in the working cycle of pulses measure module default setting, accumulative total obtains the frequency of pulse in this working cycle, thereby calculate per minute frequency of pulse value, and be temporary in memory element, micro controller is averaged according to time cycle of setting or measurement number of times to temperature value and pulse data, and temperature value after averaging the most at last and frequency of pulse transfer of data are given the RFID module; The RFID module comprises wireless radio-frequency emission unit, less radio-frequency receiving element and memory element, memory element transmission comes to micro controller temperature value and frequency of pulse data are stored, and pass through the less radio-frequency transmitting element temperature value and frequency of pulse transfer of data are arrived the outer less radio-frequency receiving system of animal body, and the less radio-frequency receiving element is responsible for monitoring and receiving the DATA REASONING order that the outer less radio-frequency receiving system of animal body sends, after receiving the DATA REASONING order, micro controller will be waken each module of implanted physiological data measuring device up and carry out the physiological data measurement; Power management module comprises lithium battery and sleep switch circuit, lithium battery is responsible for system's power supply of implanted physiological data measuring device, under RFID module less radio-frequency receiving element monitoring state, the sleep switch circuit is a closed condition, after the DATA REASONING order that monitors the transmission of external radio frequency device, activate the sleep switch circuit by micro controller each functional module outside the system is opened, temperature-measuring module, pulses measure module are started working at this moment.

Described temperature-measuring module, pulses measure module, signal processing module, RFID module and power management module adopt hybrid circuit manufacturing process or MEMS manufacturing process, adopt silica gel, resin or PU material package parcel, the parcel shell is capsule shape, Semen Jujubae shape or ball shape, outer casing width is less than or equal to 10mm, length is less than or equal to 40mm, and RFID radio frequency communication distance range is 0.5 meter to 30 meters.

The working cycle of described pulses measure module default setting is 10 seconds a multiple, generally be no more than 60 seconds, beat pulse is counted in the arrival of digital signal each time one time, accumulative total obtains frequency of pulse in this working cycle, calculates frequency of pulse in per minute frequency of pulse value=60 ÷ working cycle * this working cycle.

The invention has the beneficial effects as follows: owing to adopt cheaply implanteds such as critesistor and electric bridge bleeder circuit, low-cost piezoelectric element, RFID to measure design and little power consumption control design, the present invention has overcome prior art cost height, can't measure the shortcoming of culturing the domestic animal pulse data, obtains cheaply and cultures domestic animal temperature pulse data.Because the present invention takes low-cost thermosensitive resistance measurement method of temperature, can produce usually because the thermosensitive resistance measurement temperature value that cell voltage decline causes engenders the situation of deviation.In order to make temperature survey more accurate, designed the electric bridge bleeder circuit, by measuring the accurate resistance that divider resistance finally calculates critesistor respectively, with the critesistor resistance output error of avoiding descending and causing because of cell voltage.Because suitable cultivated animals required for the present invention has the long characteristics of life cycle, and the implanted measuring device must reduce power consumption as far as possible and prolongs measuring device service life, each electronic devices and components of the present invention, micro controller are all selected little power consumption element for use, in power management module, designed simultaneously the sleep switch circuit, only open the RF signal monitoring functionality of ultra-micro power consumption in non-Measuring Time, and other each modules of measuring device all enter resting state to reduce device from power consumption; After the DATA REASONING instruction that monitors the external radio-frequency signal input, just utilize the On/Off pin to provide high level activation sleep switch circuit each functional module of system is opened by micro controller.Test by the living animal under the breeding environment condition, the gained data are that implanted physiological data measuring device normal service life was greater than 300 days, 0.1 ℃ of temperature measurement accuracy, the pulses measure error is less than 5 times/minute, can monitor timely for a long time culturing the animal physiology state, effectively support to culture the individual remote analysis unusual, the disease probability of domestic animal and judged.

The present invention is further described below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is a kind of implanted physiological data measuring device structure chart;

Fig. 2 is a kind of implanted physiological data measuring device fundamental diagram;

Fig. 3 is the circuit theory diagrams of temperature-measuring module shown in Fig. 2;

Fig. 4 is the modular circuit of pulses measure shown in a Fig. 2 schematic diagram;

Fig. 5 is the schematic diagram of power switch circuit shown in Fig. 2.

The specific embodiment

As shown in Figure 1, a kind of implanted physiological data measuring device is mainly by temperature-measuring module, the pulses measure module, signal processing module, the RFID module, power management module constitutes, wherein temperature-measuring module is by critesistor, the electric bridge bleeder circuit, ADC forms, the pulses measure module is by piezoelectric element, preamplifier state, proportional amplifier, band filter, ADC forms, signal processing module is by micro controller 80c51, memory element, crystal oscillator is formed, the RFID module is by wireless radio-frequency emission unit, the less radio-frequency receiving element, memory element is formed, and power management module is by lithium battery, the sleep switch circuit is formed.

Shown in Fig. 2,3,4, by temperature-measuring module electric bridge bleeder circuit critesistor is powered up, measure voltage signal U1 and U2, voltage signal be converted into digital signal by ADC by resistance, and with this digital data transmission to signal processing module; Pulses measure module piezoelectric element is experienced ambient pressure and is transferred out the signal of telecommunication, by preamplifier state and proportional amplifier signal is carried out processing and amplifying, carry out noise filtering by band filter, by ADC the signal of telecommunication is converted into digital signal again, and transfer to signal processing module; Signal processing module provides operating frequency by crystal oscillator for signal processing module, under this operating frequency, micro controller 80c51 is at first by known divider resistance R1, R2, R3 resistance and the electric bridge bleeder circuit both end voltage U1 that records, the U2 digital signal calculates, obtain critesistor Rt resistance, and calculate corresponding temperature value according to the Steinhart-Hart equation and be temporary in memory element, micro controller 80C51 is (this example is set to 20 seconds) in the working cycle to pulses measure module default setting again, beat pulse is counted in the arrival of digital signal each time one time, accumulative total obtains the frequency of pulse in 20 seconds, calculate per minute frequency of pulse value according to formula (per minute frequency of pulse value=60 ÷ 20 * frequency of pulse in this working cycle), signal processing module is obtained the meansigma methods of repeatedly measuring (present embodiment is taken as three times), and temperature value and frequency of pulse transfer of data are given the RFID module the most at last; Memory element transmission comes to micro controller 80c51 temperature value and frequency of pulse data are stored in the RFID module, and the temperature pulse data is transferred to the outer less radio-frequency receiving system of animal body by the less radio-frequency transmitting element, and the less radio-frequency receiving element is responsible for monitoring and receiving the DATA REASONING order that the outer less radio-frequency dispensing device of animal body sends, after receiving the DATA REASONING order, micro controller 80c51 will wake each functional module of implanted physiological data measuring device up and carry out the physiological data measurement; Lithium battery is responsible for system's power supply of implanted physiological data measuring device in the power management module, under RFID module less radio-frequency receiving element monitoring state, the sleep switch circuit is a closed condition, after the DATA REASONING order that monitors the transmission of external radio frequency dispensing device, utilize the On/Off pin to provide high level activation sleep switch circuit by micro controller 80c51 each functional module of system is opened, temperature-measuring module, pulses measure module are started working at this moment.

With reference to shown in Figure 3, by the VCC input voltage,, obtain U1, U2 change in voltage, thereby calculate Rt critesistor resistance by sampling U1, U2 both end voltage through behind R1, R2, three divider resistances of R3 and the Rt critesistor.For fear of influencing the output of critesistor Rt, adopted following mode to gather for temperature signal because of cell voltage VCC descends.Because R1, R2, R3 are the known precision resisters of resistance, and the measuring voltage of U1, U2 can arrive by ADC in actual measurement, so can avoid in the resistance measuring process of critesistor because VCC changes the resistance measurement error of bringing.

U1＝VCC×R1/(R1+R2)

U2＝VCC×R3/(Rt+R3)

$\mathrm{Rt}=\frac{U1(R1+R2)R3}{\mathrm{<figure-callout\; label="U"\; filenames="HSA00000501058700013.png,HSA00000501058700021.png"\; state="\{\{state\}\}">U</figure-callout>}2\&CenterDot;R1}-\mathrm{<figure-callout\; label="R"\; filenames="HSA00000501058700021.png"\; state="\{\{state\}\}">R</figure-callout>}3$

After calculating critesistor Rt resistance, by Steinhart-Hart equation accounting temperature value:

1/T＝A+B(lnRt)+C(lnRt)3

Wherein, T is a temperature value, and Rt is the critesistor resistance, and A, B, C be the critesistor constant for this reason, and A, B, C are A=0.00104931, B=0.000189158, C=2.05525E-07 according to choosing thermistor element incubator test demarcation in this example.

With reference to shown in Figure 4, because pulse changes the pressure that piezoelectric element impression face produces in the animal body, make piezoelectric element export the signal of telecommunication, by preamplifier state tiny signal being amplified becomes spendable signal, the signal of preamplifier state being exported at the passing ratio amplifier carries out the amplification of 10 multiple proportions example, signal by band filter Comparative Examples amplifier output carries out noise filtering, and the signal of telecommunication that obtains showing a pulse wave of animal is transferred to ADC and carried out analog-to-digital conversion.

With reference to shown in Figure 5, when host processing system during in dormancy, the power supply of automatic closeall ancillary equipment.After the DATA REASONING order that monitors the transmission of external radio frequency device, utilize the On/Off pin to provide high level activation sleep switch circuit by micro controller 80c51 each functional module of system is opened.

Claims (2)

1. implanted physiological data measuring device, comprise temperature-measuring module, pulses measure module, signal processing module, RFID module and power management module, it is characterized in that: temperature-measuring module comprises critesistor, electric bridge bleeder circuit and ADC, by the electric bridge bleeder circuit critesistor is powered up, measure voltage signal by resistance, by ADC voltage signal is converted into digital signal, gives signal processing module with this digital data transmission again; The pulses measure module comprises piezoelectric element, preamplifier state, proportional amplifier, band filter and ADC, piezoelectric element is experienced ambient pressure and is transferred out the signal of telecommunication, by preamplifier state and proportional amplifier signal is carried out processing and amplifying, carry out noise filtering by band filter, by ADC the signal of telecommunication is converted into digital signal again, and with this digital data transmission to signal processing module; Signal processing module comprises micro controller, memory element and crystal oscillator, provide operating frequency by crystal oscillator for signal processing module, under this operating frequency, micro controller is handled the digital signal that the temperature-measuring module transmission comes, calculate by known divider resistance resistance and the electric bridge bleeder circuit both end voltage digital signal that records, obtain the critesistor resistance, and calculate corresponding temperature value according to the Steinhart-Hart equation and be temporary in memory element, micro controller is calculated the digital signal that the transmission of pulses measure module comes again, beat pulse is counted in the arrival of digital signal each time one time in the working cycle of pulses measure module default setting, accumulative total obtains the frequency of pulse in this working cycle, thereby calculate per minute frequency of pulse value, and be temporary in memory element, micro controller is averaged according to time cycle of setting or measurement number of times to temperature value and pulse data, and temperature value after averaging the most at last and frequency of pulse transfer of data are given the RFID module; The RFID module comprises wireless radio-frequency emission unit, less radio-frequency receiving element and memory element, memory element transmission comes to micro controller temperature value and frequency of pulse data are stored, and pass through the less radio-frequency transmitting element temperature value and frequency of pulse transfer of data are arrived the outer less radio-frequency receiving system of animal body, and the less radio-frequency receiving element is responsible for monitoring and receiving the DATA REASONING order that the outer less radio-frequency receiving system of animal body sends, after receiving the DATA REASONING order, micro controller will be waken above-mentioned each module up and carry out the physiological data measurement; Power management module comprises lithium battery and sleep switch circuit, lithium battery is responsible for system's power supply of implanted physiological data measuring device, under RFID module less radio-frequency receiving element monitoring state, the sleep switch circuit is a closed condition, after the DATA REASONING order that monitors the transmission of external radio frequency device, activate the sleep switch circuit by micro controller each functional module outside the system is opened, temperature-measuring module, pulses measure module are started working at this moment.

2. implanted physiological data measuring device according to claim 1, it is characterized in that: described temperature-measuring module, pulses measure module, signal processing module, RFID module and power management module adopt hybrid circuit manufacturing process or MEMS manufacturing process, adopt silica gel, resin or PU material package parcel, the parcel shell is capsule shape, Semen Jujubae shape or ball shape, outer casing width is less than or equal to 10mm, length is less than or equal to 40mm, and RFID radio frequency communication distance range is 0.5 meter to 30 meters.

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