WO2021248742A1

WO2021248742A1 - Passive dual-frequency temperature sensing bracelet

Info

Publication number: WO2021248742A1
Application number: PCT/CN2020/118192
Authority: WO
Inventors: 李天敏; 何程; 孙潍; 宋秋平; 宗倩雯; 刘起梦; 余争光; 崔涛; 陈炳祥; 张师浩; 关竹仙; 谢宛芸
Original assignee: 云南兆讯科技有限责任公司
Priority date: 2020-06-08
Filing date: 2020-09-27
Publication date: 2021-12-16
Also published as: CN213154427U

Abstract

A passive dual-frequency temperature sensing bracelet, pertaining to the technical field of physical condition monitoring. The passive dual-frequency temperature sensing bracelet comprises a wrist band (1) and a passive dual-frequency temperature sensing tag (2). The passive dual-frequency temperature sensing tag (2) is installed on the wrist band (1). The wrist band (1) comprises a bracelet band (130). Multiple fastening holes (150) arranged in a row are provided at one end of the bracelet band (130). A fastener (110) matching the shape and size of the fastening holes (150) is provided at the other end of the bracelet band (130). A fastening ring (120) is provided at the other end of the bracelet band (130) at a side of the fastener (110) close to the fastening holes (150). A temperature icon (140) is provided at a front surface of a middle portion of the bracelet band (130). The passive dual-frequency temperature sensing tag (2) comprises a temperature sensing module (210), a processing module (220), an NFC antenna (230), an ultra-high-frequency antenna (240), and a notification module (250). The processing module (220) is connected to the temperature sensing module (210), the NFC antenna (230), the ultra-high-frequency antenna (240), and the notification module (250). The passive dual-frequency temperature sensing bracelet has a novel structure, is mercury-free, and does not require a power supply. Temperature sensing data of the bracelet can be batch read by a reader-writer without latency or data omission. The invention improves efficiency of body temperature screening, and has broad applications.

Description

A passive dual-frequency temperature measuring bracelet

Technical field

The utility model belongs to the technical field of human body state monitoring, and specifically relates to a passive dual-frequency temperature measuring bracelet.

Background technique

According to Worldometers global real-time statistics, as of about 8:20 am on April 19, 2020, Beijing time, the total number of confirmed cases of new coronary pneumonia in the world reached 2,329,901, of which more than 160,000 died, reaching 160,582. People across the country are now preventing infection with the coronavirus. Take their body temperature every day. If symptoms of respiratory tract infections such as fever and cough occur, they should choose the nearest hospital fever clinic for medical treatment. Early detection, early isolation, and early treatment can effectively control the source of infection. Avoid going to work, class and gatherings with illness.

At present, the body temperature measurement equipment has the following shortcomings in the process of use: contact mercury thermometers are forbidden to contain mercury, contact electronic thermometers are affected by factors such as electronic components and battery power supply conditions, and are prone to errors. Non-contact infrared temperature measurement The instrument and infrared camera are easily affected by the external environment, resulting in low temperature measurement.

In response to the problem of body temperature monitoring, the current body temperature measurement methods mainly include the following:

①Many countries have already taken banning measures against mercury in mercury thermometers, and they cannot be taken on airplanes. At the same time, the mercury thermometer adopts contact temperature measurement. The use process is more cumbersome. You need to hold the thermometer without mercury in one hand and shake it vigorously until the mercury reading in the thermometer is below 35 degrees, and then place it under the armpit or in the mouth for measurement. After 3 to 5 minutes, take out the mercury thermometer reading, which is time-consuming and labor-intensive.

②The electronic thermometer adopts contact temperature measurement, and uses the definite relationship between the physical parameters of certain substances (such as resistance, voltage, current, etc.) and the ambient temperature to display the body temperature in digital form, but the accuracy of the displayed value is affected. Factors such as electronic components and battery power supply conditions may cause inaccurate temperature measurements.

③The non-contact temperature measurement of infrared thermometers is also included in the scope of electronic thermometers. This kind of thermometers are prone to errors and are easily affected by the external environment, resulting in low temperature measurements. Objects with a temperature above absolute zero will radiate infrared rays due to the movement of their own molecules. The infrared energy is focused on the photodetector and converted into a corresponding electrical signal. The signal is converted into the temperature value of the measured target after being corrected by the amplifier and signal processing circuit according to the internal algorithm of the instrument and the target emissivity. In windy, snowy and low-temperature weather, use an infrared thermometer to detect the temperature of the person under test (forehead, ear or wrist), and the data obtained has a large deviation from the actual body temperature of the person under test.

④The infrared camera has the same principle as the infrared thermometer, and it is also susceptible to the influence of the external environment, resulting in low temperature measurement. Moreover, in the presence of a large number of people, the infrared camera shields each other from each other, which makes it impossible for all staff to investigate.

However, the above improvement methods still have some shortcomings: contact mercury thermometers contain mercury are prohibited, contact electronic thermometers are affected by factors such as electronic components and battery power supply conditions, and are prone to errors. Non-contact infrared thermometers and infrared cameras It is easily affected by the external environment, resulting in low temperature measurement. Therefore, how to overcome the shortcomings of the existing technology is an urgent problem in the field of human body condition monitoring technology.

Utility model content

The purpose of this utility model is to solve the shortcomings of the prior art and provide a passive dual-frequency temperature measuring bracelet. The bracelet has a novel structure, is mercury-free and has no power supply. The bracelet can be read in batches through a reader The temperature measurement data, no waiting, no omissions, more efficient body temperature investigation.

In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

A passive dual-frequency temperature measurement bracelet, including: a wristband and a passive dual-frequency temperature measurement tag; the wristband is equipped with a passive dual-frequency temperature measurement tag;

The wristband includes a handband strap; one end of the handband strap is provided with a plurality of fixing holes arranged in a row;

The other end of the hand strap is provided with a fixing buckle matching the shape and size of the fixing hole;

A fixing ring is provided on the other end of the hand strap, on the side of the fixing buckle near the fixing hole;

There is a temperature icon on the front of the middle part of the bracelet;

Passive dual-frequency temperature measurement tags include temperature measurement module, processing module, NFC antenna, UHF antenna and prompt module; the processing module is respectively connected to the temperature measurement module, NFC antenna, UHF antenna, and prompt module;

The processing module is used to process the radio frequency energy and commands transmitted from the NFC antenna and UHF antenna, and send response information through the NFC antenna and UHF antenna according to the command, and call the prompt module to flash its LED light to indicate the response, and it can also receive the test Temperature data from the temperature module;

The temperature measurement module is used to collect the wrist temperature of the tested person;

The reminder module is used to flash the LED light of the reminder module to indicate a response when the processing module reads the data of the temperature measurement module;

NFC antenna is used to output body temperature results to smart phones with NFC communication function through wireless transmission;

The UHF antenna is used to output the body temperature results to the read/write device with UHF antenna through wireless transmission.

Further, preferably, there are 11 fixing holes.

Further, it is preferable that the material of the fixing buckle is colored hard plastic, and the height of the fixing buckle protruding from the surface of the wristband is 3 mm.

Further, it is preferable that the shape of the fixing ring is semicircular; the material of the wristband is colored thermoplastic polyurethane elastomer rubber.

Further, preferably, the single temperature measurement response time of the temperature measurement module is less than 100 milliseconds, and the temperature measurement range is -35°C to 50°C.

Further, it is preferable that the color of the LED lamp of the prompt module is red, yellow, green, blue or white, and the life of the LED lamp is more than 100,000 hours.

Further, preferably, the communication protocol adopted by the NFC antenna is ISO/IEC 14443-A or ISO/IEC 15693, the working frequency is 13.56MHz, the resonance capacitance is 23.5pF, and the antenna transmission distance is 5cm; the communication rate of the ISO15693 interface of the NFC antenna is 26Kbps, ISO14443 The interface communication rate is 106Kbps.

Further, preferably, the UHF reading sensitivity of the UHF antenna is -24dBm, and the UHF erasing sensitivity is -24dBm, conforming to the ISO 18000-6C air interface protocol, and the working frequency band is 840-960MHz.

Further, it is preferable that the material of the temperature icon is transparent flexible plastic, and the LED lamp of the prompt module is fixed behind the temperature icon.

Further, it is preferable that the passive dual-frequency temperature measurement tag is embedded on the side where the fixing buckle is installed on the wristband.

The temperature icon in the utility model is located on the front of the wristband band and is used to distinguish the front and back of the wristband. It is only an icon in the shape of a thermometer and does not display the problem obtained by measurement; preferably, a transparent flexible plastic is used to show the light of the reminder module.

Compared with the prior art, the utility model has the following beneficial effects:

The passive dual-frequency temperature measurement bracelet proposed by the present invention uses passive dual-frequency temperature measurement tags to contact the wrist temperature to measure the temperature of the wrist and produce a body temperature result. There is no mercury, no power supply, and no need to replace the battery or external power supply. When the reader is within the reading and writing range, the passive dual-frequency temperature measurement tag extracts the power required for its work from the radio frequency energy emitted by the reader. Add a reminder module, and flash the LED light to indicate a response every time the data of the processing module is read.

Passive dual-frequency temperature measurement bracelet is used as a family temperature measurement device, especially for infants and young children. Because conventional mercury and electronic thermometers will bring discomfort and even serious safety hazards to infants and young children during use, passive dual-frequency temperature measurement The wristband measures the temperature on the surface of the wrist and the material is soft and safe, which can perfectly solve the problems of traditional body temperature measurement equipment. It can communicate with the bracelet through the NFC antenna of the mobile phone, read the temperature measurement data, and monitor the health of the family.

Passive dual-frequency temperature measurement bracelet is used as office temperature measurement equipment, especially for temperature measurement during commuting. Since the infrared thermometer can only measure temperature by one person, the infrared camera will block each other when there are many people. Can't do a full investigation. Passive dual-frequency temperature measurement bracelet reads temperature measurement data in batches through the reader, no waiting, no omissions, and higher efficiency of body temperature investigation.

Moreover, the number of each passive dual-frequency temperature measurement bracelet can be written in the EPC area of the passive dual-frequency temperature measurement tag (belonging to the processing module), and the number and identity information such as the person’s name, gender and age can be measured by the person’s body temperature. Carry out automatic digital record, save in the reader, replace the manual record of the existing temperature measuring equipment, and have traceability, and the accumulated data can be used for trend analysis.

The manager can obtain the temperature status of the tested person, such as fever symptoms, early detection, early isolation, and early treatment, which can effectively control the source of infection, and avoid going to work, class and gathering with illness, which has important application value promotion significance.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are just some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Figure 1 is the front view of the new passive dual-frequency temperature measurement bracelet of the utility model;

Figure 2 is the back view of the new passive dual-frequency temperature measurement bracelet of the present invention;

Figure 3 is a schematic diagram of the structure of the new passive dual-frequency temperature measurement bracelet of the present invention;

Among them, 1. wrist strap; 110, fixed buckle; 120, fixed ring; 130, bracelet strap; 140, temperature icon; 150, fixed hole; 2. passive dual-frequency temperature measurement label; 210, temperature measurement module; 220 , Processing module; 230, NFC antenna; 240, UHF antenna; 250, prompt module.

detailed description

In the following, the present utility model will be further described in detail with reference to the embodiments.

Those skilled in the art will understand that the following embodiments are only used to illustrate the present utility model, and should not be regarded as limiting the scope of the present utility model. If the specific technology, connection relationship or condition is not indicated in the embodiment, it shall be carried out in accordance with the technology, connection relationship, or condition described in the literature in the field or in accordance with the product specification. The materials, instruments or equipment used without the manufacturer's indication are all conventional products that can be obtained through purchase.

Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the wording "including" used in the description of the present utility model refers to the presence of the described features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features , Integers, steps, operations, elements, components, and/or groups of them. It should be understood that when we refer to an element as being "connected" to another element, it can be directly connected to the other element, or intervening elements may also be present. In addition, "connection" as used herein may include wireless connection.

In the description of the present invention, unless otherwise specified, "multiple" means two or more. The terms "inner", "upper", "lower", etc. indicate the position or state relationship based on the position or state relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying what is meant. The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "equipped" should be understood in a broad sense, for example, it can be a fixed connection or Removable connection or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood according to the specific situation.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and unless defined as here, they will not be used in idealized or overly formal meanings. explain.

As shown in Figures 1 to 3, a passive dual-frequency temperature measurement wristband includes: a wristband 1 and a passive dual-frequency temperature measurement tag 2; the wristband 1 is equipped with a passive dual-frequency temperature measurement tag 2;

The wristband 1 includes a wristband 130; one end of the wristband 130 is provided with a plurality of fixing holes 150 arranged in a row;

The other end of the wrist strap 130 is provided with a fixing buckle 110 matching the shape and size of the fixing hole 150;

A fixing ring 120 is provided on the other end of the hand strap 130, on the side of the fixing buckle 110 near the fixing hole 150;

There is a temperature icon 140 on the front side of the middle of the bracelet belt 130;

The passive dual-frequency temperature measurement tag 2 includes a temperature measurement module 210, a processing module 220, an NFC antenna 230, an UHF antenna 240, and a prompt module 250; the processing module 220 is respectively connected with the temperature measurement module 210, NFC antenna 230, and UHF antenna 240. The prompt module 250 is connected;

The processing module 220 is used to process the radio frequency energy and commands transmitted by the NFC antenna 230 and the UHF antenna 240, and send response information through the NFC antenna 230 and the UHF antenna 240 according to the command, and call the prompt module 250 to flash its LED light to indicate In response, the temperature data from the temperature measurement module 210 can also be received;

The temperature measurement module 210 is used to collect the temperature of the wrist of the tested person;

The prompt module 250 is used to flash the LED of the prompt module 250 to indicate a response when the processing module 220 reads the data of the temperature measurement module 210;

The NFC antenna 230 is used to output the body temperature result to a smart phone with NFC communication function through wireless transmission;

The UHF antenna 240 is used for outputting the body temperature result to the reading and writing device with the UHF antenna through wireless transmission.

In a preferred solution, there are 11 fixing holes 150.

In a preferred solution, the fixing buckle 110 is made of colored hard plastic, and the height of the fixing buckle 110 protruding from the surface of the wristband 130 is 3 mm.

In a preferred solution, the shape of the fixing ring 120 is semicircular; the material of the wristband 130 is colored thermoplastic polyurethane elastomer rubber.

In a preferred solution, the temperature measurement module 210 has a single temperature measurement response time of less than 100 milliseconds, and the temperature measurement range is -35°C to 50°C.

In a preferred solution, the color of the LED light of the prompt module 250 is red, yellow, green, blue or white, and the life of the LED light is more than 100,000 hours.

In the preferred solution, the communication protocol adopted by the NFC antenna 230 is ISO/IEC 14443-A or ISO/IEC 15693, the operating frequency is 13.56MHz, the resonance capacitance is 23.5pF, and the antenna transmission distance is 5cm; the communication rate of the ISO15693 interface of the NFC antenna 230 is 26Kbps, and the ISO14443 interface The communication rate is 106Kbps.

In the preferred solution, the UHF reading sensitivity of the UHF antenna 240 is -24dBm, and the UHF erasing sensitivity is -24dBm, conforming to the ISO 18000-6C air interface protocol, and the working frequency band is 840～960MHz.

In a preferred solution, the temperature icon 140 is made of transparent flexible plastic, and the LED light of the prompt module 250 is fixed behind the temperature icon 140.

In a preferred solution, the passive dual-frequency temperature measurement tag 2 is embedded on the side of the wristband 1 where the fixing buckle 110 is installed.

In this utility model, the passive dual-frequency temperature measurement label 2 has no power supply, and does not need to replace the battery or external power supply; when the passive dual-frequency temperature measurement label 2 is sent from the reader when it is within the reading and writing range of the reader In the radio frequency energy, the power required for its work is extracted through the UHF antenna 240; when the reading and writing range of the smart phone with NFC communication function is The radio frequency energy emitted by the mobile phone uses the NFC antenna 230 to extract the power required for its operation.

Applications

The wristband 1 is preferably made of thermoplastic polyurethane elastomer rubber, which has a hardness range of 60HA-85HD, abrasion resistance, oil resistance, transparency, and good elasticity. It is used to fix the passive dual-frequency temperature measurement label 2 on the wrist of the tested person. The passive dual-frequency temperature measurement tag 2 is embedded in the wristband. When the temperature measurement module 210 is close to the front of the wrist, the temperature measurement data is closer to the body temperature, which is more meaningful for body temperature monitoring.

The color of the wristband 1 can be adjusted by dyeing. The left side of the wristband 1 is a fixing ring 120 and a fixing buckle 110, and the right side of the wristband 1 is a row of fixing holes 150 (Figure 1 shows 11 fixing holes). 150). The diameter of the fixing hole 150 matches the shape and size of the fixing buckle 110, and is used to fix the passive dual-frequency temperature measurement tag 2 and the wrist of the tested person. The passive dual-frequency temperature measurement tag 2 is Embedded on the left side of the wristband 1.

Wherein, the fixing buckle 110 is used to fix the bracelet;

The fixed ring 120 is used to fix the wristband, and the wristband 130 is located at this end of the fixing hole 150 and can pass through the fixed ring 120;

The wristband 130 is used to carry passive dual-frequency temperature measurement tags 2;

The temperature icon 140 is used to distinguish the front and back of the wristband, and is made of transparent flexible plastic; preferably, the prompt module 250 overlaps the center of the temperature icon 140, and when the prompt module 250 lights up, light comes out from the center of the temperature icon;

The fixing hole 150 is located on the right side of the wristband, and the 11 fixing holes have the same size, which are used to adjust the size of the wristband.

The passive dual-frequency temperature measurement tag 2 is used to detect the temperature of the wrist. It belongs to the category of RFID electronic tags. It conducts non-contact two-way data communication through radio frequency. It has two working frequency bands, namely 840-960MHz and 13.56. MH.

The processing module 220 preferably uses the chip FM13DT160 of Shanghai Fudan Microelectronics Group Co., Ltd.; the temperature measurement module 210 preferably uses the 103F3435 temperature sensor of Shenzhen Kedi Te Electronics Co., Ltd., and the prompt module 250 preferably uses Guangdong Tongjia Optoelectronics Technology Co., Ltd. The company's SMD0603LED lamp beads.

Without loss of generality, the content of the present invention will be further illustrated by taking the passive dual-frequency temperature measuring bracelet to monitor the body temperature of office employees during commuting and working as an example.

When commuting to and from get off work, employees wearing passive dual-frequency temperature measurement bracelets pass through the company gate where readers are deployed. The response time of the module 210 is less than 100ms, and it takes about 6 seconds for an employee to pass through the reading and writing range of the reader (for example: a radius of 3 meters). When an employee wearing a passive dual-frequency temperature measurement bracelet enters the reading and writing range of the reader (for example: a radius of 3 meters), the UHF antenna 240 of the passive dual-frequency temperature measurement tag receives the signal sent by the reader The radio frequency energy extracts the power required for its work, and calls the temperature measurement module 210 according to the commands transmitted by the reader wirelessly to accurately measure the temperature of the employee’s wrist and store it in the User area of the passive dual-frequency temperature measurement tag (Belonging to the processing module 220), and call the prompt module 250 at the same time, and flash its LED light to indicate a response. Since the temperature icon 140 is a transparent flexible plastic, the LED light is seen by the employee wearing the bracelet through the temperature icon 140 and passed to the employee. The temperature reading signal is successful, and the remaining radio frequency energy in the passive dual-frequency temperature measurement tag 2 is used to transmit the temperature measurement data and the bracelet number to the reader through the UHF antenna 240 to complete the entire temperature measurement process. Wristband 1 is used to fix the passive dual-frequency temperature measurement label on the employee's wrist. The temperature icon 140 is located on the front of the wristband to distinguish the front and back of the wristband. When it is close to the front of the wrist, the temperature measurement data is closer to the body temperature and has the body temperature. The significance of monitoring.

The passive dual-frequency temperature measurement bracelet is used as a home temperature measurement device. The NFC antenna 230 of the passive dual-frequency temperature measurement tag 2 receives the radio frequency energy emitted by the mobile phone’s NFC antenna, extracts the power required for its work, and transmits it wirelessly according to the mobile phone. The temperature measurement module 210 is called to accurately measure the temperature of the family’s wrist, and it is stored in the User area of the label. At the same time, the prompt module 250 is called, and its LED light flashes to indicate a response. Because the temperature icon 140 is a transparent flexible plastic, LED light The employee wearing the wristband is seen through the temperature icon 140, and a signal is sent to the employee that the temperature is read successfully, and the remaining RF energy in the passive dual-frequency temperature measurement tag 2 is used to pass the temperature measurement data and the wristband number. The NFC antenna 230 is transmitted to the mobile phone to complete the entire temperature measurement process and monitor the health of the family. The wristband 1 is used to fix the passive dual-frequency temperature measurement tag on the wrist of the family member. The temperature icon 140 is located on the front of the bracelet to distinguish the front and back of the bracelet. .

The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the industry should understand that the present utility model is not limited by the foregoing embodiments. The foregoing embodiments and descriptions only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model The new model will have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims

A passive dual-frequency temperature measurement bracelet, which is characterized by comprising: a wristband (1) and a passive dual-frequency temperature measurement tag (2); the wristband (1) is provided with a passive dual-frequency temperature measurement tag ( 2);

The wristband (1) includes a wristband (130); one end of the wristband (130) is provided with a plurality of fixing holes (150) arranged in a row;

The other end of the hand strap (130) is provided with a fixing buckle (110) matching the shape and size of the fixing hole (150);

A fixing ring (120) is provided on the other end of the hand ring strap (130) and on the side of the fixing buckle (110) near the fixing hole (150);

There is a temperature icon (140) on the front side of the middle part of the bracelet strap (130);

Passive dual-frequency temperature measurement tags (2) include temperature measurement module (210), processing module (220), NFC antenna (230), UHF antenna (240) and prompt module (250); processing module (220) respectively Connect with temperature measurement module (210), NFC antenna (230), UHF antenna (240), and prompt module (250);

The processing module (220) is used to process the radio frequency energy and commands transmitted by the NFC antenna (230) and the UHF antenna (240), and send response information through the NFC antenna (230) and the UHF antenna (240) according to the command, And call the prompt module (250) to flash its LED light to indicate a response, and it can also receive the temperature data from the temperature measurement module (210);

The temperature measurement module (210) is used to collect the temperature of the wrist of the tested person;

The prompt module (250) is used to flash the LED light of the prompt module (250) to indicate a response when the processing module (220) reads the data of the temperature measurement module (210);

The NFC antenna (230) is used to output body temperature results to a smart phone with NFC communication function through wireless transmission;

The UHF antenna (240) is used to output body temperature results to a read-write device with UHF antenna through wireless transmission.
The passive dual-frequency temperature measurement wristband according to claim 1, wherein there are 11 fixing holes (150).
The passive dual-frequency temperature measurement wristband according to claim 1, wherein the fixing buckle (110) is made of colored hard plastic, and the height of the fixing buckle (110) protruding from the surface of the wristband (130) is 3mm.
The passive dual-frequency temperature measurement wristband according to claim 1, wherein the shape of the fixed ring (120) is semicircular; and the material of the wristband (130) is colored thermoplastic polyurethane elastomer rubber.
The passive dual-frequency temperature measurement bracelet according to claim 1, wherein the temperature measurement module (210) has a single temperature measurement response time of less than 100 milliseconds, and the temperature measurement range is -35°C to 50°C.
The passive dual-frequency temperature measurement wristband according to claim 1, characterized in that the color of the LED light of the prompt module (250) is red, yellow, green, blue or white, and the life of the LED light is more than 100,000 hours.
The passive dual-frequency temperature measurement wristband according to claim 1, characterized in that the communication protocol adopted by the NFC antenna (230) is ISO/IEC 14443-A or ISO/IEC 15693, the operating frequency is 13.56 MHz, and the resonance capacitance is 23.5. pF, the antenna transmission distance is 5cm; the communication rate of the ISO15693 interface of the NFC antenna (230) is 26Kbps, and the communication rate of the ISO14443 interface is 106Kbps.
The passive dual-frequency temperature measurement bracelet according to claim 1, wherein the UHF reading sensitivity of the UHF antenna (240) is -24dBm, and the UHF erasing sensitivity is -24dBm, which conforms to ISO18000. -6C air interface protocol, working frequency band 840～960MHz.
The passive dual-frequency temperature measurement bracelet of claim 1, wherein the temperature icon (140) is made of transparent flexible plastic, and the LED light of the prompt module (250) is fixed behind the temperature icon (140).
The passive dual-frequency temperature measurement wristband according to claim 1, characterized in that the passive dual-frequency temperature measurement tag (2) is embedded on the side of the wristband (1) where the fixing buckle (110) is installed.