CN211155777U

CN211155777U - Novel card of many leads sensing formula

Info

Publication number: CN211155777U
Application number: CN201921944611.6U
Authority: CN
Inventors: 吴昊
Original assignee: Hearing Shanghai Intelligent Technology Co ltd
Current assignee: Hearing Shanghai Intelligent Technology Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-08-04
Anticipated expiration: 2029-11-12

Abstract

The utility model relates to a novel multi-lead sensing card, which comprises a card body, wherein a circuit control system is arranged in the card body, two electrodes are arranged on the front surface of the card body, and one electrode is arranged on the back surface of the card body; the circuit control system comprises a central processing unit, an NFC antenna circuit unit, an electrocardiosignal acquisition and processing unit and a power supply conversion unit. The utility model discloses can realize the sensor signal collection that leads more, and convenient to carry easily promotes.

Description

Novel card of many leads sensing formula

Technical Field

The utility model relates to an electrocardio collection technology field especially relates to a novel card of multiple lead sensing formula, can wide application in various traditional cards such as credit card, social security card, membership card, traffic card, realizes that information acquisition is intelligent.

Background

At present, portable electrocardio equipment is large in size, inconvenient to carry and relatively single in function. The ultrathin card type electrocardio-photoelectric motor disclosed by the Chinese patent No. CN208209945U comprises a card body and a circuit control system arranged in the card body; the circuit control system comprises a Bluetooth processor, a power supply and charging control module and an electrocardio-photoelectric integrated sensor; the Bluetooth processor is respectively connected with the power supply, the charging control module, the radio frequency circuit and the film key through different ports; one end of the electrocardio-photoelectricity integrated sensor is connected with the Bluetooth processor, and the other end of the electrocardio-photoelectricity integrated sensor is connected with the metal electrode; the circuit control system is also provided with a flash memory chip and a safety chip; the other end of the safety chip is connected with an NFC antenna circuit; the Bluetooth processor is connected with the background server through the radio frequency circuit or the NFC antenna circuit. The electrocardio-photoelectric motor with the structure only has two electrodes on the front surface, and can not realize multi-lead sensing signal acquisition.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a novel card of many leads sensing formula, can realize many leads sensing signal collection, and convenient to carry easily promotes.

The utility model discloses a realize through following technical scheme:

a novel multi-lead sensing card comprises a card body, wherein a circuit control system is arranged in the card body, two electrodes are arranged on the front face of the card body, one electrode is arranged on the back face of the card body, the circuit control system comprises a central processing unit, an NFC antenna circuit unit, an electrocardiosignal acquisition processing unit and a power supply conversion unit, the electrocardiosignal acquisition processing unit comprises a CP2833 chip, the D1 end of the CP2833 chip is in communication connection with AIN1 of the central processing unit through AIN1, the central processing unit comprises an nRF58232-W L CSP chip, the G6 end of the nRF58232-W L CSP chip is in communication connection with the NFC antenna circuit unit through NFC1, and the G5 end of the nRF58232-W L CSP chip is in communication connection with the power supply conversion unit through MCU PWSE R Ctrl.

Furthermore, the central processing unit is configured to receive the analog electrocardiographic signal output by the electrocardiographic signal acquisition processing unit, convert the analog electrocardiographic signal into a digital electrocardiographic signal through analog-to-digital conversion, and transmit the digital electrocardiographic signal to the terminal through the NFC antenna circuit unit.

Further, the system also comprises an interactive storage unit which is used for realizing the storage and the calling of the human electrocardiosignal data.

Further, the B5 terminal of the CP2833 chip is communicatively connected with one electrode BT6 through a resistor R6; the C5 end of the CP2833 chip is in communication connection with one electrode BT5 through a resistor R9; the D5 terminal of the CP2833 chip is connected with one electrode BT7 in communication through a resistor R7.

Further, the length of the card body is 85mm, the width is 54mm, and the thickness is 0.8 mm.

Further, the diameter of the electrode is 13 mm.

Further, a communication unit is included for providing a communication interface for data communication with other devices, the communication unit including but not limited to bluetooth.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has ultra-thin size, can be carried about, supports the test of electrocardiogram at any time and any place, and is very convenient to use; when the device is used, the two electrodes on the front face correspond to two fingers respectively, one electrode on the back face corresponds to the left upper limb or the right upper limb or the lower limb of a human body, six-lead signal collection is realized and is used for collecting electrocardiosignals of the human body, the collected analog electrocardiosignals are output to a central processing unit, and for single lead or other leads, the acquisition can be realized only by increasing the number of the electrodes and the acquisition channels.

2. The utility model discloses simple structure, whole circuit design are ultra-thin ultra-low power consumption design, and whole circuit can encapsulate among a standard bank card/social security/medical security/traffic card, is favorable to the quick popularization and application of product.

3. The utility model discloses an electrode diameter is 13mm for the area minimizing of circuit, the collection performance of electrode is not influenced at all simultaneously but with reduced costs.

Drawings

Fig. 1 is a schematic front structural view of the present invention;

FIG. 2 is a schematic view of the reverse structure of the present invention;

fig. 3 is a schematic block diagram of the circuit control system of the present invention;

fig. 4 is a schematic diagram of the central electrical signal acquisition and processing unit of the present invention.

Fig. 5 is a schematic circuit diagram of the central electrical signal acquisition and processing unit of the present invention.

Fig. 6 is a schematic circuit diagram of the cpu according to the present invention.

Fig. 7 is a schematic circuit diagram of the NFC antenna circuit unit of the present invention.

Fig. 8 is a schematic circuit diagram of the power conversion unit of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in figures 1 and 2, the novel multi-lead sensing card comprises a card body 1, wherein the size of the card body is 85mm × 54mm × 0.8mm, the whole thickness is controlled to be 0.8mm, the most important technical parameter is the card body, the card is convenient to carry, and the card can be placed in a wallet or a pocket for use, and an electrocardiogram can be measured and acquired at any time and any place according to needs.

As shown in fig. 1 and 2, the card body 1 has two electrodes 3 on the front surface and one electrode 3 on the back surface, and the conventional product has only two electrodes on the front surface. When the device is used, the two electrodes on the front side correspond to two fingers respectively, one electrode on the back side corresponds to the knee position of the lower limb of the human body, six-lead signal collection is realized, the electrocardiosignal of the human body is convenient to collect, and the collected simulation electrocardiosignal is output to the central processing unit. The electrode 3 on the back side is not limited to be placed at the knee position of the lower limb, and other positions advantageous for detection may be placed and used.

As shown in fig. 1-3, a circuit control system 2 is disposed in the card body 1. The circuit control system 2 comprises a central processing unit, an NFC antenna circuit unit, an electrocardiosignal acquisition processing unit and a power supply conversion unit; the central processing unit is connected with the NFC antenna circuit unit, the central processing unit is in communication connection with the electrocardiosignal acquisition and processing unit, and the power supply conversion unit supplies power to the central processing unit, the NFC antenna circuit unit and the electrocardiosignal acquisition and processing unit; the electrode is in communication connection with the electrocardiosignal acquisition and processing unit. The central processing unit is used for receiving the analog electrocardiosignals output by the electrocardiosignal acquisition and processing unit, converting the analog electrocardiosignals into digital electrocardiosignals through analog-to-digital conversion and transmitting the digital electrocardiosignals to the terminal through the NFC antenna circuit unit. Terminals include, but are not limited to, cell phones, PADs, etc.

Preferably, an additional communication unit may be included for providing a communication interface for data communication with other devices, including but not limited to bluetooth. The system also comprises an interactive storage unit which is used for realizing the storage and the calling of the human body electrocardiosignal data.

The outer side of the card body is provided with an ink coating, the whole circuit is designed to be ultrathin and ultra-low in power consumption, and the whole circuit can be packaged in a standard bank card/social security/medical security/traffic card.

As shown in FIG. 4, the three electrodes are respectively an electrode E, an electrode E and an electrode E, when in use, an electrocardiogram signal of a human body can be acquired by touching the electrodes on the card body, and the acquired data is transmitted to a terminal through a communication unit of the card body, wherein S is a differential signal of the electrode E and the electrode E, S is a differential signal of the electrode E and the electrode (E + E)/2, A and A are signal differential amplifiers, B and B are signal filtering amplifiers, C and C are signal comparators, Ref is a reference voltage of the comparators, OD and OD are output signals of the signal comparators, which are high-low level signals for indicating whether the electrode E, the ECG and the ECG are contacted by a person, and the ECG.

The electrocardiosignal acquisition and processing unit shown in fig. 5 comprises a CP2833 chip, wherein the D1 end of the CP2833 chip is in communication connection with the AIN1 of the central processing unit through the AIN 1; the B5 end of CP2833 is connected with one electrode BT6 in communication mode through a resistor R6; the C5 end of CP2833 is connected with one electrode BT5 in communication mode through a resistor R9; the end D5 of CP2833 is connected with one electrode BT7 in communication mode through a resistor R7; the signals collected by the three electrodes can be processed and analyzed in a CP2833 chip.

The central processing unit shown in fig. 6 comprises an nRF58232-W L CSP chip, wherein a G6 terminal of the nRF58232-W L CSP chip is in communication connection with an NFC antenna circuit unit through an NFC1, and a G5 terminal of the nRF58232-W L CSP chip is in communication connection with a power supply conversion unit through an MCUSE PWR Ctrl.

Fig. 7 is a schematic circuit diagram of the NFC antenna circuit unit according to the present invention, which receives data from the central processing unit through the second terminal and the third terminal of the NFC processing chip and sends the data out; the NFC processing chip can be a conventional processing chip.

Fig. 8 is a schematic circuit diagram of the power conversion unit of the present invention, wherein when SE signal a L Ctrl is High, a = B2 in the chips U7 to U9, and when SE signal a L Ctrl is L ow, a = B1 in the chips U7 to U9.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel card of multiple lead sensing formula, includes the card body, this internal circuit control system that is provided with of card, its characterized in that:

the front surface of the card body is provided with two electrodes, and the back surface of the card body is provided with one electrode;

the circuit control system comprises a central processing unit, an NFC antenna circuit unit, an electrocardiosignal acquisition and processing unit and a power supply conversion unit;

the electrocardiosignal acquisition and processing unit comprises a CP2833 chip, wherein the D1 end of the CP2833 chip is in communication connection with the AIN1 of the central processing unit through AIN 1;

the central processing unit comprises an nRF58232-W L CSP chip, wherein a G6 end of the nRF58232-W L CSP chip is in communication connection with the NFC antenna circuit unit through an NFC1, and a G5 end of the nRF58232-W L CSP chip is in communication connection with the power supply conversion unit through an MCU SE PWRCtrl.

2. The novel multi-lead sensing card of claim 1, wherein: the central processing unit is used for receiving the analog electrocardiosignals output by the electrocardiosignal acquisition and processing unit, converting the analog electrocardiosignals into digital electrocardiosignals through analog-to-digital conversion, and transmitting the digital electrocardiosignals to the terminal through the NFC antenna circuit unit.

3. The novel multi-lead sensing card of claim 1, wherein: the system also comprises an interactive storage unit which is used for realizing the storage and the calling of the human electrocardiosignal data.

4. The novel multi-lead sensing card of claim 1, wherein: the B5 end of the CP2833 chip is in communication connection with one electrode BT6 through a resistor R6; the C5 end of the CP2833 chip is in communication connection with one electrode BT5 through a resistor R9; the D5 terminal of the CP2833 chip is connected with one electrode BT7 in communication through a resistor R7.

5. The novel multi-lead sensing card of claim 1, wherein: the length of card body is 85mm, and wide 54mm, thickness are 0.8 mm.

6. The novel multi-lead sensing card of claim 1, wherein: the diameter of the electrode is 13 mm.