CN212300647U

CN212300647U - Wearable passive near field temperature measurement paster

Info

Publication number: CN212300647U
Application number: CN202020874848.8U
Authority: CN
Inventors: 谢维昌; 李若婧
Original assignee: Nanchang University
Current assignee: Nanchang University
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2021-01-05
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses a wearable passive near field temperature measurement paster, including flexible paster, radio frequency unit, thermocouple sensor and master control, intermediate layer is equipped with the coil in the middle of the flexible paster, and the coil both ends are connected to the radio frequency unit through the wire, radio frequency unit, master control, wire are all laid in the intermediate layer of flexible paster, the thermocouple sensor is laid in flexible paster lower surface, and with skin direct contact during attached, the temperature information transfer that the hot spot couple sensor will obtain gives the master control, handles the back through the master control, passes back to the reader through radio frequency unit change coil inner induction current's mode. The utility model has simple structure, low manufacturing cost and high contact sampling and temperature measuring precision; the wearable, convenient health is convenient for measure many times in the short time, easily uses on a large scale.

Description

Wearable passive near field temperature measurement paster

Technical Field

The utility model relates to a wearable medical instrument field specifically is a wearable passive near field temperature measurement paster.

Background

The wearable patch is a wearable device developed in recent years, and most of the shapes of the wearable patch are thin slices and are adhered to the surface of an object. Because of its advantages of small volume, high reliability and flexible function, it is often combined with microelectronic device and is more applied in the fields of biosensing and electronic label.

During an epidemic, it is often desirable to monitor the body temperature of a particular population in real time. The traditional temperature measurement method comprises contact temperature measurement and non-contact temperature measurement. For contact type temperature measurement, namely a mode of directly contacting the surface of a measured object by using a sensor to evaluate the temperature of the measured object, although the accuracy is high and the data is stable and reliable, temperature measurement equipment (such as a thermometer and a thermocouple) needs to be continuously contacted for a long time. These devices are often cumbersome, such as thermocouples that require external circuitry to be linked to operate. In non-contact temperature measurement, the surface temperature is usually evaluated by the infrared wavelength released from the object by using an infrared temperature measurement method. The method has high measuring efficiency and convenient use, but the precision is not as good as that of contact temperature measurement. And is greatly interfered by the environment. Therefore, there is a need for a new body temperature measuring device that can take into account flexibility, accuracy and measurement efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, provide a wearable passive near field temperature measurement paster, the utility model discloses used technical scheme is:

a wearable passive near-field temperature measurement patch comprises a flexible patch, a radio frequency unit, a thermocouple sensor and a main control, wherein a coil is arranged in an interlayer in the middle of the flexible patch, two ends of the coil are connected to the radio frequency unit through wires, and the radio frequency unit, the main control and the wires are all laid in the interlayer of the flexible patch; the thermocouple sensor is paved on the lower surface of the flexible patch and is in direct contact with the skin during attaching.

The flexible patch is made of non-woven fabric or gauze, is circular in shape and is coated with glue at the bottom.

The radio frequency unit comprises a rectifying circuit and a capacitor, the rectifying circuit rectifies the alternating current captured by the coil and extracts a digital signal in the current; the capacitor can provide power for the main control and the thermocouple.

The beneficial effects of the utility model reside in that:

1. non-contact temperature measurement: the device can finish temperature measurement work when approaching an induction area, and is simple and efficient;

2. the temperature measurement precision is high: the thermocouple contact sampling precision is far higher than that of common non-contact infrared temperature measurement;

3. the wearable, convenient and sanitary, and convenient for multiple measurements in a short time;

4. the structure is simple, the manufacturing cost is low, and the large-scale use is easy;

5. the equipment requirement is simple, and the card reader can be matched with a conventional card reader, NFC equipment and a mobile phone with a near field communication function for use according to the same induction principle as that of a commercial IC card.

Drawings

Fig. 1 is a schematic diagram of a wearable passive near-field temperature measurement patch of the present invention;

fig. 2 is a top view of the wearable passive near-field temperature measurement patch of the present invention;

fig. 3 is a structural bottom view of the wearable passive near-field temperature measurement patch of the present invention;

fig. 4 is a side view of the wearable passive near-field temperature measurement patch of the present invention;

in the figure: 1. a flexible patch; 2. a coil; 3. a radio frequency unit; 4. a thermocouple sensor; 5. main control; 6. and (4) conducting wires.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Example (b): see fig. 1-4.

A wearable passive near-field temperature measurement patch comprises a flexible patch 1, a radio frequency unit 3, a thermocouple sensor 4 and a main control unit 5, wherein a coil 2 is arranged in the middle interlayer of the flexible patch 1, two ends of the coil 2 are connected to the radio frequency unit 3 through wires 6, and the radio frequency unit 3, the main control unit 5 and the wires 6 are all laid in the interlayer of the flexible patch 1; the thermocouple sensor 4 is paved on the lower surface of the flexible patch 1 and is directly contacted with the skin when being attached.

The flexible patch 1 is made of non-woven fabric or gauze, is circular in shape and is coated with glue at the bottom.

The radio frequency unit 3 comprises a rectifying circuit and a capacitor, the rectifying circuit rectifies the alternating current captured by the coil 2 and extracts a digital signal in the current; the capacitor can provide power for the main control and the thermocouple.

When in use, the patch of the utility model is attached on the target temperature measurement part. When the thermocouple sensor 4 is heated to isothermal temperature by body temperature, the sensing surface of the reader (i.e. a common IC card reading and writing device) is close to the patch. The chip inside the patch reads the temperature of the thermocouple sensor 4 and transmits the temperature back to the reader through the induction electromagnetic field to finish temperature measurement.

Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, and all such modifications and equivalent substitutions are intended to be encompassed by the scope of the following claims.

Claims

1. A wearable passive near-field temperature measurement patch comprises a flexible patch (1), a radio frequency unit (3), a thermocouple sensor (4) and a main control unit (5), and is characterized in that a coil (2) is arranged in the middle interlayer of the flexible patch (1), two ends of the coil (2) are connected to the radio frequency unit (3) through wires (6), and the radio frequency unit (3), the main control unit (5) and the wires (6) are all laid in the interlayer of the flexible patch (1); the thermocouple sensor (4) is paved on the lower surface of the flexible patch (1) and is in direct contact with the skin during attaching.

2. The wearable passive near-field temperature measurement patch according to claim 1, wherein the flexible patch (1) is made of non-woven fabric or gauze, is circular in shape, and has a bottom coated with glue.

3. The wearable passive near-field temperature measurement patch according to claim 1, wherein the radio frequency unit (3) comprises a rectifying circuit and a capacitor, the rectifying circuit rectifies the alternating current captured by the coil (2) and extracts a digital signal from the current; the capacitor can provide power for the main control and the thermocouple.