CN111813020A - Portable medical detector with replaceable probe and control method thereof - Google Patents
Portable medical detector with replaceable probe and control method thereof Download PDFInfo
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- CN111813020A CN111813020A CN202010675114.1A CN202010675114A CN111813020A CN 111813020 A CN111813020 A CN 111813020A CN 202010675114 A CN202010675114 A CN 202010675114A CN 111813020 A CN111813020 A CN 111813020A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
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Abstract
The invention provides a portable medical detector with a replaceable probe and a control method thereof, wherein the portable medical detector comprises a detection host and the probe, and the probe is detachably connected with the detection host; the probe is provided with a probe connection data interface, and the detection host is provided with a host connection data interface matched with the probe connection data interface; the detection host comprises a display screen, a key, a power supply module and a main control module, wherein the display screen, the key and the power supply module are respectively connected with the main control module; the probe comprises a signal transmitting module, a signal receiving module and a probe identification circuit; the signal transmitting module, the signal receiving module and the probe identification circuit are electrically connected with the main control module and the power supply module of the detection host through the butt joint of the probe connection data interface and the host connection data interface respectively. By adopting the technical scheme of the invention, the probe and the host can be detachably connected, and the host can be connected with different probes, so that the multi-purpose of one machine is realized, and the resources are saved.
Description
Technical Field
The invention belongs to the technical field of medical detection equipment, and particularly relates to a portable medical detector with a replaceable probe and a control method thereof.
Background
In recent years, domestic electronic medical instruments in China are more and more popularized, and various medical detection equipment such as a thermometer, a jaundice meter, a heart rate meter, an oximeter and the like are purchased in every family. And like jaundice appearance, only the neonate uses, and the live time is very short, so both the wasting of resources had increased the purchase expenditure, occupied family's space again, still increased the equipment maintenance cost. In addition, a large number of detectors related to integration in the future generally need to be replaced as long as faults occur, resources are wasted, cost is needed for recovering equipment faults, and the discarded equipment is easy to become electronic waste to pollute the environment.
Disclosure of Invention
Aiming at the technical problems, the invention discloses a portable medical detector with a replaceable probe and a control method thereof, wherein the probe is separable from a main body, the probe can be detached and replaced according to the requirements, and further, one host can be matched with different probes, so that the resource is saved, the occupied area is small, and the use is more convenient.
In contrast, the technical scheme adopted by the invention is as follows:
a portable medical detector with a replaceable probe comprises a detection host and the probe, wherein the probe is detachably connected with the detection host;
the probe is provided with a probe connection data interface, and the detection host is provided with a host connection data interface matched with the probe connection data interface;
the detection host comprises a display screen, a key, a power supply module and a main control module, wherein the display screen, the key and the power supply module are respectively connected with the main control module;
the probe comprises a signal transmitting module, a signal receiving module and a probe identification circuit;
the signal transmitting module, the signal receiving module and the probe identification circuit are electrically connected with the main control module and the power supply module of the detection host through the butt joint of the probe connection data interface and the host connection data interface respectively. Furthermore, the signal transmitting module, the signal receiving module and the probe identification circuit are respectively electrically connected with the main control module of the detection host machine through the butt joint of the probe connection data interface and the host machine connection data interface; the signal transmitting module and the probe identification circuit are electrically connected with a power supply module of the detection host machine through the butt joint of the probe connection data interface and the host machine connection data interface. The main control module comprises programs of detection function processes of different probes.
By adopting the technical scheme, the probe and the host are separately designed, the probe completes the functions of signal detection and feedback, and the host completes the functions of signal control and signal processing, so that one host can be configured with a plurality of functional probes, and the detection host end provides a power supply to complete a plurality of detection functions.
As a further improvement of the invention, the probe comprises a signal emission control module, the signal emission control module is electrically connected with the signal emission control module, and the signal emission control module is in butt joint with a host connection data interface through a probe connection data interface to realize the electrical connection with a main control module and a power supply module of the detection host.
As a further improvement of the present invention, the probe connection data interface includes a signal output electrode, a signal emission control signal electrode, a probe type identification signal electrode and a power signal electrode, the host connection data interface includes a receiving signal end, a control signal end, a probe type identification signal end and a power signal output end, and the signal output electrode, the signal emission control signal electrode, the probe type identification signal electrode and the power signal electrode respectively correspond to the receiving signal end, the control signal end, the probe type identification signal end and the power signal output end in position.
As a further improvement of the present invention, the signal receiving module is connected to the signal output electrode through a front end amplifying circuit; and the signal receiving end is connected with the main control module through a host end amplifying circuit.
As a further improvement of the present invention, the probes include, but are not limited to, forehead thermometer probes, ear thermometer probes, jaundice meter probes, heart rate meter probes, and oximeter probes.
As a further improvement of the invention, the main control module comprises an AD sampling module, a data preprocessing module, a data operation module and a result output module which are sequentially connected, wherein the result output module is electrically connected with the display screen; the signal receiving module is electrically connected with the AD sampling module through a front-end amplifying circuit and a host-end amplifying circuit.
As a further improvement of the invention, when the probe is a jaundice meter probe, the signal emission control module of the probe comprises a constant current source circuit, and the power signal electrode is connected with the signal emission module through the constant current source circuit; when the probe is a heart rate meter probe or an oximeter probe, a signal emission control module of the probe comprises a power mosfet switch circuit, and the power signal electrode is connected with the signal emission module through the power mosfet switch circuit.
As a further improvement of the present invention, the detection host comprises a communication module, and the communication module is connected with the main control module; furthermore, the communication module is a Bluetooth module and a WIFI module. By adopting the technical scheme, the data can be uploaded to the mobile phone APP and the background server, and the data can be better analyzed and utilized.
As a further improvement of the invention, the power supply module comprises a battery, a booster circuit and a voltage stabilizing circuit, wherein the battery is electrically connected with the main control module and the power supply output end through the booster circuit and the voltage stabilizing circuit. The power module supplies power to the main control module and each module at the detection host end and also supplies power to the probe. Further, the battery may be an alkaline battery or a lithium ion battery, and when the battery is a lithium ion battery, the power circuit further includes a charge and discharge management circuit.
As a further improvement of the invention, the probe connection data interface and the host connection data interface are connected through a pin header.
As a further improvement of the invention, the detection host is provided with a pin header connected with a host connection electrode, and the probe is provided with a pin header slot matched with the pin header structure. Or the probe is provided with a pin header connected with the probe connecting electrode, and the detection host is provided with a pin header slot matched with the pin header structure. Further, the PIN header is an 8PIN (4 x 2) PIN header.
As a further improvement of the invention, the keys comprise an on-off key, a left page turning key and a right page turning key.
As a further improvement of the invention, the main control module comprises an MSP430 or STM32 single chip microcomputer, and the main functions comprise data operation, ADC sampling conversion, data storage, display drive, real-time clock, interrupt input and the like.
As a further improvement of the invention, the probe is detachably connected with the detection host through a magnet or a buckle.
The invention also discloses a control method of the portable medical detector with the replaceable probe, which comprises the following steps:
after the probe is connected with the detection host, the detection host is started up, the type of the probe is identified according to a signal fed back by the probe identification circuit, and if the probe is not identified, the detection host is shut down;
if the probe is successfully identified, displaying an identification result, starting to detect an operation signal of a key, if the key operation is detected, completing a corresponding function (measurement, query, setting and the like), and when the measurement key signal is detected, executing a corresponding detection function process according to the identified probe type, displaying the detection result on a display screen, and storing the detection result.
Compared with the prior art, the invention has the beneficial effects that:
by adopting the technical scheme of the invention, the functions of the probe and the host are separately designed, the probe can be replaced, one host can be provided with the probes with multiple functions to complete multiple detection functions, one machine has multiple functions, the purchase cost of a user is saved, social resources and space are saved, and the popularization of various household medical products is facilitated.
Drawings
FIG. 1 is a block diagram of the electrical connections of a probe-replaceable portable medical meter of the present invention.
FIG. 2 is a schematic diagram of a forehead gun probe of the portable medical monitor with a replaceable probe according to the present invention.
Fig. 3 is a schematic structural diagram of a jaundice probe mounted on the portable medical detector with a replaceable probe according to the present invention.
Fig. 4 is a circuit diagram of a blood oxygen probe of the portable medical detector of the present invention with a replaceable probe.
FIG. 5 is a circuit diagram of a testing host of the portable medical testing apparatus with replaceable probe according to the present invention.
FIG. 6 is a functional block diagram of a main control module of the portable medical testing apparatus according to the present invention.
FIG. 7 is a flow chart of a method of controlling a probe-replaceable portable medical meter according to the present invention.
FIG. 8 is a flow chart illustrating a control method of the portable medical testing apparatus according to the present invention.
The reference numerals include:
1-detection host, 2-keys, 3-display screen, 4-forehead temperature gun probe and 5-jaundice probe.
Detailed Description
Preferred embodiments of the present invention are described in further detail below.
As shown in fig. 1 to 3, the portable medical detector with replaceable probes realizes that a plurality of probes share the same host, and comprises a detection host 1 and the probes, wherein the probes are detachably connected with the detection host 1 through magnets or buckles, and the detection host 1 is switched into a corresponding functional mode by identifying the types of the probes, so that multiple purposes of one machine are realized.
The probe is provided with a probe connection data interface, and the detection host is provided with a host connection data interface matched with the probe connection data interface; the detection host comprises a display screen 3, a key 2, a power supply module and a main control module, wherein the display screen 3, the key 2 and the power supply module are respectively connected with the main control module; the probe comprises a signal transmitting module, a signal receiving module, a probe identification circuit and a signal transmitting control module; the signal emission control module, the signal receiving module and the probe identification circuit are respectively connected with the main control module and the power supply module of the detection host through the butt joint of the probe connection data interface and the host connection data interface. Specifically, the signal transmitting module, the signal receiving module and the probe identification circuit are electrically connected with the main control module of the detection host through the butt joint of the probe connection data interface and the host connection data interface respectively; the signal transmitting module and the probe identification circuit are electrically connected with a power supply module of the detection host machine through the butt joint of the probe connection data interface and the host machine connection data interface.
When the detection host machine is only matched with the ear thermometer probe and the forehead thermometer probe, the probes do not have signal emission control modules, and the signal emission modules are directly electrically connected with the main control module of the detection host machine. When the detection host computer matches multiple probes such as ear thermometer probe, forehead thermometer probe, jaundice appearance probe, cardiotachometer probe, oximetry probe, jaundice appearance probe's probe part has signal emission control module, and signal emission control module passes through the main control module electricity of signal emission control module with the detection host computer and is connected.
The data interface is connected to the probe and comprises a signal output electrode, a signal emission control signal electrode, a probe type identification signal electrode and a power signal electrode, the host is connected to the data interface and comprises a receiving signal end, a control signal end, a probe type identification signal end and a power signal output end, and the signal output electrode, the signal emission control signal electrode, the probe type identification signal electrode and the power signal electrode respectively correspond to the receiving signal end, the control signal end, the probe type identification signal end and the power signal output end in position. The probe identification circuit is electrically connected with the probe type identification signal electrode, the signal emission control module is connected with the signal emission control signal electrode, the signal receiving module is connected with the signal output electrode through the front end amplification circuit, and the power supply signal electrode is electrically connected with the probe identification circuit and the signal emission control module. The detection system comprises a detection host end, a signal receiving end is connected with a main control module through a host end amplifying circuit, a control signal end and a probe type identification signal end are electrically connected with the main control module, and a power signal output end is electrically connected with a power module.
As shown in fig. 6, the main control module includes the following functions: AD sampling, data preprocessing, data operation, result output and storage; the signal receiving module is electrically connected with the AD sampling module through a front-end amplifying circuit and a host-end amplifying circuit.
The probe is used for transmitting and receiving biomedical detection signals, a front-end amplifying circuit and outputs the amplified signals to the detection host; the detection host receives signals of the probe, performs AD sampling after passing through the amplifying circuit, and performs screening and filtering on the sampled data, then performs data preprocessing, obtains a measurement result through operation, and then performs display and storage (as shown in FIG. 8). The probe can be a forehead temperature gun probe, an ear temperature gun probe, a jaundice meter probe, a heart rate meter probe or an oximeter probe.
Specifically, the probe identification circuit can have a plurality of modes, the simplest mode can use two resistors to divide voltage in series, different types of probes adopt different resistor combinations to output different voltages, and the master control identifies the type of the probe by measuring the output voltage.
The signal emission control module adopts different control circuits according to different signal emission requirements, when the probe is a jaundice instrument probe, the emission control module of the probe is a constant current source circuit, and the power signal electrode is connected with the signal emission module through the constant current source circuit; when the probe is a heart rate meter probe or an oximeter probe, the emission control module of the probe is a power mosfet switch circuit, and the power signal electrode is connected with the signal emission module through the power mosfet switch circuit. The ear thermometer and the forehead thermometer adopt an infrared temperature measurement mode without the circuit.
The signal emission module uses different light emitting devices according to the functions of the probe to emit light with different wavelengths, for example, a jaundice meter needs blue light and green light LEDs, an oximeter and a heart rate meter need red light and infrared light LEDs, and an ear thermometer and a forehead thermometer do not need the light emitting devices.
The signal receiving module is a sensor, receives an optical signal and converts the optical signal into an electrical signal, namely a photodiode and a photoelectric sensor, a device is selected according to the wavelength of the received light, for example, a jaundice meter selects the photodiode with high sensitivity to blue light and green light, a forehead temperature gun and an ear temperature gun realize measurement of human body temperature in a non-contact manner by measuring the radiation temperature of eardrum or forehead of ears, the photoelectric sensor with high sensitivity to infrared wavelength needs to be selected, and an oximeter and a cardiotachometer need to select the photoelectric sensor with high sensitivity to red light and infrared light wavelength.
The front-end amplifying circuit converts a micro current signal output by the sensor into a voltage signal for amplification, the amplification factor is generally more than 1000 times, the output voltage is 0.1V-0.5V, and the voltage signal is output to the amplifying circuit at the host end.
The probe part is structurally connected with the host part through a buckle or a magnetic suction device, a data signal is connected through an 8PIN (4 x 2) PIN header, and the data signal comprises a power supply, a probe type identification signal, a signal emission control signal and a front-end amplification circuit output signal. In a specific embodiment, the probe connection data interface and the host connection data interface are connected through a pin header. Furthermore, the detection host is provided with a pin header connected with the host through a connection electrode, and the probe is provided with a pin header slot matched with the pin header structure. Or the probe is provided with a pin header connected with the probe connecting electrode, and the detection host is provided with a pin header slot matched with the pin header structure.
The power module comprises a battery, a booster circuit and a voltage stabilizing circuit, and the battery is electrically connected with the main control module and the power output end through the booster circuit and the voltage stabilizing circuit. The power module supplies power to the main control module and each module at the detection host end and also supplies power to the probe. Further, the battery is an alkaline battery or a lithium ion battery, and when the battery is the lithium ion battery, the power supply circuit further comprises a charge and discharge management circuit. The keys comprise a power-on and power-off function key, an up-page turning key and a down-page turning key. The on-off function key is used for on-off and starting measurement, and the page up key and the page down key are used for stored historical data reference function.
And the host end amplifying circuit takes the output signal of the probe front end amplifying circuit as input, and outputs the input signal to the master control sampling after passing through the amplifying circuit.
Further, the detection host computer includes bluetooth BLE module, bluetooth module is connected with host control module. Bluetooth BLE module (bluetooth low energy module), as optional module, can upload test data to cell-phone APP or backend server.
The main control module comprises an MSP430 or STM32 single chip microcomputer, and the main functions comprise data operation, ADC sampling conversion, data storage, display drive, real-time clock, interrupt input and the like.
Fig. 2 is a schematic structural view of a forehead thermometer probe 4 mounted on a main machine, and fig. 3 is a schematic structural view of a jaundice probe 5 mounted on the same main machine.
Besides, a blood oxygen probe can be installed. As a specific example, when the blood oxygen probe is installed, the circuit diagram of the blood oxygen probe part is shown in FIG. 4, and the circuit diagram of the detection host is shown in FIG. 5.
The control method of the probe-replaceable portable medical detector, as shown in fig. 7, includes the following steps:
when the probe is connected with the detection host, the key is pressed down, the detection host is started, software initialization is firstly carried out, the detection host identifies the type of the probe according to signals fed back by the probe identification circuit, and if the probe is not identified, the detection host is shut down.
If the identification probe is successful, displaying the identification result and detecting the signal of the function key, and if no signal exists, detecting that the host is powered off. If the key operation is detected, corresponding functions (measurement, query, setting and the like) are completed, and when a measurement key signal is detected, corresponding test function processes, such as an ear thermometer test process, a forehead thermometer test process, a jaundice meter test process, a heart rate meter test process or an oximeter test process, are executed according to the identified probe type. And displaying the detection result on a display screen, and storing the detection result. And the main control module stores all the test data by using a uniform space, so that a test time mark and a data type mark are added in each data record, and the test time, the data type and the data are displayed simultaneously when the data are displayed. By pressing the up-turn key and the up-turn key, the originally monitored data can be consulted.
The test flow and the algorithm are the implementation processes of completing test sampling and data operation, the test flow of each probe function is relatively independent, and the algorithms of various probes in the prior art can be adopted.
The main control module test flow chart shown in fig. 8:
emission control, it is the action of signal transmission according to the demand drive, sends light signal, and forehead temperature rifle and ear temperature rifle do not have this process, and jaundice appearance needs blue light and green glow alternate emission 9 groups, and heart rate meter and oximeter are not single measurement but continuous cycle measurement, therefore need drive red light and infrared light and keep regularly cycle emission.
After the signal emission light irradiates a test object, a part of the signal is received by the sensor after absorption and reflection of skin, and the signal is used as input of AD sampling after photoelectric conversion and an amplifying circuit.
AD sampling and emission control are corresponding, sampling processes of various functions are different, a forehead thermometer and an ear thermometer directly convert infrared signals emitted by skin for sampling, and a jaundice meter, a heart rate meter and an oximeter emit signals once for sampling.
And (4) data preprocessing, namely performing data filtering according to the sampled data to remove abnormal data, and then performing preprocessing calculation on data such as a mean value, a median value and the like.
And the data operation is to calculate a measurement result by using the data obtained by the pretreatment as input and through a specific algorithm formula.
The last step is to save the resulting data and then display it.
Adopt the technical scheme of this embodiment, through the inner structure of products such as analysis have forehead temperature rifle, jaundice appearance, cardiotachometer ear temperature rifle, oximetry, the complete machine function split of these products is two parts: the function of the probe part is defined as signal detection and front end amplification, and the function of the host part is defined as data acquisition, operation processing, result display and control operation. The multifunctional probe realizes multiple detection functions of forehead temperature, jaundice, heart rate, blood oxygen, ear temperature and the like by configuring the multifunctional probe. The multifunctional household medical appliance has multiple functions, saves the purchase cost of users, social resources and space, and is beneficial to the popularization of various household medical products.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. A portable medical detector with a replaceable probe is characterized in that: the device comprises a detection host and a probe, wherein the probe is detachably connected with the detection host;
the probe is provided with a probe connection data interface, and the detection host is provided with a host connection data interface matched with the probe connection data interface;
the detection host comprises a display screen, a key, a power supply module and a main control module, wherein the display screen, the key and the power supply module are respectively connected with the main control module;
the probe comprises a signal transmitting module, a signal receiving module and a probe identification circuit;
the signal transmitting module, the signal receiving module and the probe identification circuit are electrically connected with the main control module of the detection host through the butt joint of the probe connection data interface and the host connection data interface respectively; the signal transmitting module and the probe identification circuit are electrically connected with a power supply module of the detection host machine through the butt joint of the probe connection data interface and the host machine connection data interface;
the main control module comprises programs of detection function processes of different probes.
2. The probe-replaceable portable medical monitor of claim 1, wherein: the probe comprises a signal emission control module, the signal emission control module is electrically connected with the signal emission control module, and the signal emission control module is in butt joint with a host connection data interface through a probe connection data interface to realize the electrical connection with a main control module and a power supply module of the detection host.
3. The probe-replaceable portable medical monitor of claim 2, wherein: the data interface is connected to the probe and comprises a signal output electrode, a signal emission control signal electrode, a probe type identification signal electrode and a power signal electrode, the host is connected to the data interface and comprises a receiving signal end, a control signal end, a probe type identification signal end and a power signal output end, and the signal output electrode, the signal emission control signal electrode, the probe type identification signal electrode and the power signal electrode respectively correspond to the receiving signal end, the control signal end, the probe type identification signal end and the power signal output end in position.
4. The probe-replaceable portable medical monitor of claim 3, wherein: the signal receiving module is connected with the signal output electrode through a front-end amplifying circuit; and the signal receiving end is connected with the main control module through a host end amplifying circuit.
5. The probe-replaceable portable medical monitor of claim 4, wherein:
the main control module comprises an AD sampling module, a data preprocessing module, a data operation module and a result output module which are sequentially connected, and the result output module is electrically connected with the display screen;
the signal receiving module is electrically connected with the AD sampling module through a front-end amplifying circuit and a host-end amplifying circuit.
6. The probe-replaceable portable medical monitor of claim 5, wherein: the probes comprise a forehead temperature gun probe, an ear temperature gun probe, a jaundice meter probe, a heart rate meter probe and an oximeter probe;
when the probe is a jaundice instrument probe, the signal emission control module of the probe comprises a constant current source circuit, and the power signal electrode is connected with the signal emission module through the constant current source circuit;
when the probe is a heart rate meter probe or an oximeter probe, a signal emission control module of the probe comprises a power mosfet switch circuit, and the power signal electrode is connected with the signal emission module through the power mosfet switch circuit.
7. The probe-replaceable portable medical meter according to any one of claims 1 to 6, wherein: the detection host comprises a communication module, and the communication module is connected with a main control module; the power module comprises a battery, a booster circuit and a voltage stabilizing circuit, and the battery is electrically connected with the main control module and the power output end through the booster circuit and the voltage stabilizing circuit.
8. The probe-replaceable portable medical monitor of claim 7, wherein: the communication module is a Bluetooth module and a WIFI module; the probe connection data interface is connected with the host connection data interface through a pin header.
9. The portable medical detector according to any one of claims 1 to 6, wherein the probe is detachably connected to the detection host via a magnet or a buckle.
10. A control method of a probe-replaceable portable medical detector is characterized by comprising the following steps:
after the probe is connected with the detection host, the detection host is started up, the type of the probe is identified according to a signal fed back by the probe identification circuit, and if the probe is not identified, the detection host is shut down;
if the probe is successfully identified, displaying an identification result, detecting a signal of a key, if a measurement signal is detected, executing a corresponding detection function process according to the identified probe type, displaying the detection result on a display screen, and storing the detection result.
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| CN112587075A (en) * | 2020-12-28 | 2021-04-02 | 邓萌 | Ear-nose-throat electronic detection device and use method thereof |
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| CN110279938A (en) * | 2019-07-11 | 2019-09-27 | 合肥芯福传感器技术有限公司 | Intelligent multifunctional therapeutic equipment |
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| CN112587075A (en) * | 2020-12-28 | 2021-04-02 | 邓萌 | Ear-nose-throat electronic detection device and use method thereof |
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