阅读说明：本技术 便携式环境及身体情况监测系统 (Portable environmental and physical condition monitoring system ) 是由 周一兵 孙建国 钱金栋 杨定强 段小娟 周军 于 2021-02-07 设计创作，主要内容包括：本发明涉及环境监测设备技术领域,具体涉及一种便于救援人员开展救援工作的便携式环境及身体情况监测系统,包括辐射检测装置和智能手环装置；辐射检测装置包括辐射采集模块和数据发送模块；智能手环装置包括数据接收模块、处理模块和蜂鸣器；其中：辐射采集模块用于采集环境中的辐射强度信息；数据发送模块用于将辐射强度信息发送至数据接收模块；数据发送模块与数据接收模块采用无线通信或有线通信；数据接收模块用于接收辐射强度信息；处理模块用于根据预设阈值判断辐射强度信息,若检测到的辐射强度信息大于预设阈值,则生成第一告警信号。采用本方案能够使救援人员更加便捷地开展救援工作。(The invention relates to the technical field of environment monitoring equipment, in particular to a portable environment and body condition monitoring system convenient for rescue workers to carry out rescue work, which comprises a radiation detection device and an intelligent bracelet device, wherein the radiation detection device comprises a radiation detection unit and a radiation detection unit; the radiation detection device comprises a radiation acquisition module and a data transmission module; the intelligent bracelet device comprises a data receiving module, a processing module and a buzzer; wherein: the radiation acquisition module is used for acquiring radiation intensity information in the environment; the data sending module is used for sending the radiation intensity information to the data receiving module; the data sending module and the data receiving module adopt wireless communication or wired communication; the data receiving module is used for receiving the radiation intensity information; the processing module is used for judging the radiation intensity information according to a preset threshold value, and if the detected radiation intensity information is larger than the preset threshold value, a first alarm signal is generated. Rescue work can be carried out more conveniently to this scheme of adoption messenger's rescue personnel.)

1. The portable environment and body condition monitoring system is characterized by comprising a radiation detection device and an intelligent bracelet device; the radiation detection device comprises a radiation acquisition module and a data transmission module; the intelligent bracelet device comprises a data receiving module, a processing module and a buzzer; wherein:

the radiation acquisition module is used for acquiring radiation intensity information in the environment;

the data sending module is used for sending the radiation intensity information to the data receiving module;

the data sending module and the data receiving module adopt wireless communication or wired communication;

the data receiving module is used for receiving the radiation intensity information;

the processing module is used for judging the radiation intensity information according to a preset threshold value, and if the detected radiation intensity information is larger than the preset threshold value, generating a first alarm signal; the processing module is also used for judging the connection state of the wireless communication, and if the wireless communication is disconnected, a second alarm signal is generated;

the buzzer is used for sending out a prompt sound after receiving the first alarm signal or the second alarm signal.

2. The portable environmental and physical condition monitoring system of claim 1, wherein: the intelligent bracelet device further comprises a positioning module, and the positioning module is used for acquiring position information; the background terminal is used for receiving the position information and the environment radiation intensity information and inputting the received environment radiation intensity information into a pre-established mapping relation table for integration; if the environment radiation intensity information is judged to be larger than the preset threshold value, grading the environment radiation intensity information according to a preset interval value to obtain grade information corresponding to the environment radiation intensity information; and the background terminal is also used for performing color rendering on the environment radiation intensity information in the mapping relation table according to the grade information.

3. The portable environmental and physical condition monitoring system of claim 2, wherein: the intelligent bracelet device also comprises a heart rate acquisition module which is used for acquiring heart rate original data of rescuers; the processing module is also used for receiving the heart rate original data, processing the heart rate original data according to a peak detection algorithm and generating a heart rate value; the server is also used for receiving the heart rate value and sending the heart rate value to the background terminal.

4. A portable environmental and physical condition monitoring system according to claim 3, wherein: the heart rate acquisition module comprises a light source and a photoelectric sensing unit, wherein: the light source adopts a green light emitting diode; and the photoelectric sensing unit is used for receiving the light beam reflected by the light source after penetrating through the peripheral blood vessel of the human body and generating the original heart rate data.

5. A portable environmental and physical condition monitoring system according to claim 3, wherein: the processing module is further configured to process the heart rate raw data using smoothing filtering.

6. The portable environmental and physical condition monitoring system of claim 1, wherein: the wireless communication adopts Bluetooth, and the wired communication adopts USB.

7. The portable environmental and physical condition monitoring system of claim 1, wherein: the intelligent bracelet device also comprises an acceleration acquisition module which is used for acquiring acceleration original data; the processing module is also used for processing the acceleration original data according to the derivation operation to generate a step value.

Technical Field

The invention relates to the technical field of environment monitoring equipment, in particular to a portable environment and body condition monitoring system.

Background

At present, natural disasters and various accidents frequently occur, the emergency rescue work is more and more prominent; this also puts higher demands on emergency responders in various disaster accidents. The body state information of the emergency rescue personnel in the rescue process has great influence on the whole rescue process. How to effectively monitor the body state of the rescue workers has important significance for ensuring the smooth emergency rescue process and ensuring the life and property safety of the rescue workers.

To this problem, chinese patent publication is CN206421546U discloses an intelligent bracelet for rescue, including the bracelet body, be provided with heart rate testing arrangement on the bracelet body, GPS positioning system and emergency alarm device, heart rate testing arrangement, GPS positioning system and emergency alarm device install the signal emission device on the bracelet body through signal line connection respectively, signal emission device passes through wireless signal connection radio receiving module, radio receiving module also includes heart rate data receiving device, position data receiving device and emergency signal receiving device.

The intelligent bracelet is worn by the rescue personnel when the rescue task is executed, the health state of a human body can be measured by the intelligent bracelet, and the early warning is carried out on the abnormal event of a carrier. However, since radiation source equipment is generally installed in hospitals and chemical plants, if an earthquake occurs, the earthquake waves generated by the earthquake will cause damage to buildings and structures; the exposure of radioactive substances to the environment is a potential threat to rescuers; the intelligent bracelet cannot detect radiation source information in a rescue environment, and in order to obtain the radiation amount in the prior art, a Geiger counter is generally used for radiation measurement, the Geiger counter is designed according to the ionization property of radiation to gas, the general structure is that a metal tube with two ends sealed by insulating substances is filled with rarefied gas (generally rare gas doped with halogen, such as helium, neon, argon and the like), a metal wire electrode is installed on the axis along the tube, and voltage slightly lower than the breakdown voltage of the gas in the tube is added between the metal tube wall and the metal wire electrode; the problem that rescue workers are inconvenient to carry out rescue work exists because the rescue workers need to hold the Geiger counter to observe real-time changing data on the screen so as to judge the radiation intensity in the environment.

Disclosure of Invention

The invention aims to provide a portable environment and physical condition monitoring system which is convenient for rescue workers to carry out rescue work.

The basic scheme provided by the invention is as follows:

the portable environment and body condition monitoring system comprises a radiation detection device and an intelligent bracelet device; the radiation detection device comprises a radiation acquisition module and a data transmission module; the intelligent bracelet device comprises a data receiving module, a processing module and a buzzer; wherein:

the radiation acquisition module is used for acquiring radiation intensity information in the environment;

the data sending module is used for sending the radiation intensity information to the data receiving module;

the data sending module and the data receiving module adopt wireless communication or wired communication;

the data receiving module is used for receiving the radiation intensity information;

the processing module is used for judging the radiation intensity information according to a preset threshold value, and if the detected radiation intensity information is larger than the preset threshold value, generating a first alarm signal; the processing module is also used for judging the connection state of the wireless communication, and if the wireless communication is disconnected, a second alarm signal is generated;

the buzzer is used for sending out a prompt sound after receiving the first alarm signal or the second alarm signal.

The working principle and the advantages of the invention are as follows:

according to the scheme, the radiation detection device and the intelligent bracelet device are used as two independent and separated devices, wireless communication is adopted between the devices, a rescuer can directly wear the intelligent bracelet device on a wrist and place the radiation detection device in a backpack or a pocket which is carried about, radiation intensity information in the environment can be collected by the radiation detection device and transmitted to the intelligent bracelet device, the radiation intensity information is analyzed and judged by the processing module, if the detected radiation intensity information is larger than a preset threshold value, a buzzer is triggered to give an alarm to remind the rescuer that the radiation intensity at the position exceeds the standard, and the rescuer can also report the condition to a command center after receiving the alarm and keep away from the position; the method can prevent the rescue workers from being harmed by high-intensity radiation under the unknown condition, thereby playing a role in protecting the rescue workers; meanwhile, as the radiation detection device and the intelligent bracelet are in wireless communication, compared with the traditional radiation detection device, the radiation detection device does not need to be held by a rescuer, but the radiation detection device is placed in a backpack to vacate two hands, so that the portability is realized, and the rescuer can vacate two hands to better carry out rescue work;

moreover, the signal transmission of the radiation detection device and the intelligent bracelet device can also adopt wired communication as a standby option; the wireless communication that can avoid leading to because of the great influence of electromagnetic radiation intensity in the environment wireless communication drops, detects the back that wireless communication drops by processing module, and the first-aid staff can receive the suggestion and switch to wired communication to guarantee the effective transmission of radiation intensity information.

Furthermore, the intelligent bracelet device also comprises a positioning module, and the positioning module is used for acquiring position information; the background terminal is used for receiving the position information and the environment radiation intensity information and inputting the received environment radiation intensity information into a pre-established mapping relation table for integration; if the environment radiation intensity information is judged to be larger than the preset threshold value, grading the environment radiation intensity information according to a preset interval value to obtain grade information corresponding to the environment radiation intensity information; and the background terminal is also used for performing color rendering on the environment radiation intensity information in the mapping relation table according to the grade information.

Has the advantages that: by adopting the scheme, the background terminal can play a role in auxiliary judgment, the monitoring difficulty of background workers is reduced, and the background workers can find out the condition that the environmental radiation intensity information exceeds the standard in time.

Furthermore, the intelligent bracelet device also comprises a heart rate acquisition module which is used for acquiring heart rate original data of the rescuers; the processing module is also used for receiving the heart rate original data, processing the heart rate original data according to a peak detection algorithm and generating a heart rate value; the server is also used for receiving the heart rate value and sending the heart rate value to the background terminal.

Has the advantages that: the commander knows the heart rate value of the rescue worker through the background terminal, and the heart rate value can reflect the exercise amount and the exercise intensity and can reflect the body function state integrally; the physical condition information can be used as a reference standard for judging whether the rescue workers are suitable for continuing follow-up rescue work, the rescue workers do not need to actively report physical discomfort to the commander, and the commander can conveniently carry out overall management.

Further, the heart rate acquisition module includes light source and photoelectric sensing unit, wherein: the light source adopts a green light emitting diode; and the photoelectric sensing unit is used for receiving the light beam reflected by the light source after penetrating through the peripheral blood vessel of the human body and generating the original heart rate data.

Has the advantages that: in the scheme, a green light emitting diode is used as a light source of the heart rate acquisition module, so that a signal with high signal-to-noise ratio can be obtained; based on the characteristic that green light is easy to detect, the device is not easy to be interfered by sports, wearing problems, ambient light and the like, so that more accurate data can be obtained.

Further, the processing module is further configured to process the heart rate raw data by using smoothing filtering.

Has the advantages that: because the acquired signals contain various components with different frequencies, the heart rate original data are processed by adopting smooth filtering, noise interference can be filtered, and the desired components are reserved; thereby ensuring the effectiveness of the heart rate value.

Furthermore, the wireless communication adopts Bluetooth, and the wired communication adopts USB.

Has the advantages that: although the radiation detection device and the intelligent bracelet device are two independent and separated devices, the two devices are carried by rescuers, the distance between the two devices is short, and the Bluetooth is used as a radio technology capable of supporting short-distance communication (generally within 10 m) of the devices, so that the Bluetooth radio device not only can be applied to the scheme, but also has the characteristics of higher transmission speed, better transmission confidentiality and the like; USB possesses the advantage of connecting in a flexible way and convenient to use as radiation detection device and intelligent bracelet device communication connection's reserve option.

Further: the intelligent bracelet device also comprises an acceleration acquisition module which is used for acquiring acceleration original data; the processing module is also used for processing the acceleration original data according to the derivation operation to generate a step value.

Has the advantages that: the acquired acceleration original data can be regarded as a waveform diagram describing a walking process, the waveform diagram is particularly similar to a sine-cosine curve and periodically changes according to wave crests and wave troughs, and leading operation is adopted to extract extreme points in the waveform, namely points with zero derivative are found out, and corresponding step information can be obtained.

Drawings

FIG. 1 is a system block diagram of a portable environmental and physical condition monitoring system in accordance with a first embodiment of the present invention.

Detailed Description

The following is further detailed by the specific embodiments:

example one

As shown in fig. 1, the portable environmental and physical condition monitoring system comprises a radiation detection device and an intelligent bracelet device, wherein the radiation detection device comprises a radiation acquisition module and a data transmission module; the intelligent bracelet device comprises a data receiving module, a processing module, a judging module and a buzzer; the radiation detection device adopts an existing Geiger counter, and specifically consists of an existing Geiger counting tube, an amplifying buffer circuit, an STC89C52 single chip microcomputer and a power supply circuit, wherein the power supply circuit is adopted to supply power to the Geiger counting tube and the STC89C52 single chip microcomputer respectively, the output end of the Geiger counting tube is connected with the input end of the amplifying buffer circuit, and the output end of the amplifying buffer circuit is connected with the input end of the STC89C52 single chip microcomputer; compared with the existing Geiger counter, the Geiger counter is different in that the Geiger counter further comprises a first Bluetooth module with the model number of HC-05 and an RS232-USB interface converter with the model number of PL2303, which is produced by Prolific corporation; the first Bluetooth module is in signal connection with the STC89C52 single chip microcomputer; one end of the flat cable is led out from the signal output end of the STC89C52 single chip microcomputer by adopting a connecting flat cable, and the other end of the flat cable is connected with the input end of the PL 2303; the processing module of the intelligent bracelet device adopts the existing Dialog DA14580 main control chip for developing the intelligent bracelet, and the main control chip is integrated with a second Bluetooth module, so that a new Bluetooth module does not need to be used for communicating with the radiation detection module; the input end of the main control chip is also welded with a USB interface female socket which is matched with the output end of the PL 2303; the USB data transmission between the STC89C52 single chip microcomputer and the Dialog DA14580 main control chip can be realized; meanwhile, the output end of the main control chip is in signal connection with a buzzer of which the model is KPEG 242.

In the using process, a tester A is selected, and for convenience of operation, the tester can place the radiation detection device in a backpack which is carried about and then wear the intelligent bracelet device on the wrist, assuming that the tester A is arranged before rescue work is carried out; the Bluetooth module is utilized to realize matching synchronization of the STC89C52 single chip microcomputer and the Dialog DA14580 main control chip, and the radiation intensity information collected by the radiation detection device is transmitted to the intelligent bracelet device; the processing module judges the radiation intensity information according to a preset threshold value in the embodiment, and generates a first alarm signal if the detected radiation intensity information is greater than the preset threshold value; specifically, in the embodiment, the environmental radiation intensity information acquired by the radiation detection device is 0.61usv/h, while the preset threshold value is 0.57usv/h, and since 0.61 is greater than 0.57, the buzzer on the bracelet is triggered to alarm, so that the tester is prompted that the radiation intensity in the environment exceeds the standard; meanwhile, in order to avoid that the blue tooth communication is influenced by electromagnetic interference due to overlarge radiation intensity, the intelligent bracelet device cannot receive environment radiation intensity information collected by the radiation detection device through the blue tooth module; therefore, the processing module is adopted to judge the connection state of the Bluetooth module, and if the Bluetooth connection is disconnected, a second alarm signal is generated to trigger the buzzer to alarm; the tester can insert the USB interface into the USB female seat after receiving the warning suggestion to make radiation detection device and intelligent bracelet device carry out wired data communication.

Example two

Compared with the first embodiment, the difference is that the smart bracelet device further comprises a positioning module, and the positioning module is used for collecting position information; still include backstage terminal, backstage terminal and intelligent bracelet communication connection, wherein: the background terminal is used for receiving the position information and the environment radiation intensity information and inputting a plurality of pieces of received environment radiation intensity information into a mapping relation table which is established in advance for integration; if the environment radiation intensity information is judged to be larger than the preset threshold value, grading the environment radiation intensity information according to a preset interval value to obtain grade information corresponding to the environment radiation intensity information; in this embodiment, the grade information is specifically low risk and high risk; the grade information corresponds to different colors, namely, low-risk corresponds to orange, and high-risk corresponds to red. The background terminal is also used for matching colors according to the grade information and rendering corresponding environment radiation intensity information in the mapping relation table according to the colors; the background terminal is further used for acquiring and displaying the personnel information with the grade information being high-risk.

In the embodiment, the background terminal can receive the environmental radiation intensity information of all the people wearing the intelligent bracelet in real time, and the environmental radiation intensity information is input into the mapping relation table, wherein the mapping relation table comprises the personal identity information of the people and the environmental radiation intensity information measured by the intelligent bracelet; taking the environmental radiation intensity information of the tester B and the tester C as an example; the environmental radiation intensity information of the two testers is 0.66usv/h and 0.86usv/h, and the two radiation intensity values are both larger than a preset threshold value (0.57 usv/h); after judgment and processing are carried out according to preset interval values (0.57usv/h-0.67usv/h is low-risk, 0.68usv/h and above is high-risk), rows corresponding to the testers B and C in the mapping relation table are respectively rendered into orange and red; and because the tester C belongs to high risk, the background terminal also displays the personnel information of the tester C.

By adopting the scheme, the radiation intensity numerical values of all rescuers can be received and displayed in real time through the background terminal, and are displayed in a form. Because the number of rescuers is large, in order to reduce the monitoring difficulty of background workers, the background terminal can grade the environmental radiation intensity data of different workers according to a preset interval value and render a form based on the environmental radiation intensity data, so that the background workers can immediately find the condition that the radiation intensity value exceeds the standard, the work of auxiliary judgment by the background terminal is realized, and the background workers do not need to consume a great deal of energy to monitor the data; in addition, the background terminal can also display the high-risk condition in time, avoid the high-risk condition to be neglected, make the backstage staff in time know the high-risk condition, be convenient for carry out subsequent manual intervention to the high-risk condition, play better guard action to the rescue personnel.

EXAMPLE III

Compared with the first embodiment, the difference is that the smart bracelet device further comprises a heart rate acquisition module, wherein the heart rate acquisition module comprises a light source and a photoelectric sensing unit, the light source is a green light emitting diode, and the photoelectric sensing unit adopts a TSOP4838 photosensitive sensor and is used for receiving light beams reflected back by the light source after penetrating through peripheral blood vessels of a human body and generating heart rate original data; the smart bracelet main control chip is also used for receiving the heart rate original data and processing the heart rate original data according to time domain analysis, namely processing the heart rate original data by adopting a smoothing filter algorithm and a peak detection algorithm in sequence to generate a heart rate value; specifically, since the heart rate is one of the important parameters of the vital signs, when the light beam of the light source is emitted to the skin, the light reflected back through the skin tissue is received by the photoelectric sensing unit and converted into an electrical signal, and then the electrical signal is converted into a digital signal through the AD. Then the main control chip processes the heart rate original data by adopting a smoothing filter algorithm and a peak detection algorithm in sequence; because blood in an artery flows and absorption of light also changes, after the photoelectric sensing unit converts the light into an electric signal, an alternating current signal in the electric signal is extracted, so that the flowing characteristic of the blood can be reflected, the collected heart rate original data is a periodically changing curve, noise interference is eliminated by adopting smooth filtering, and finally, the number of wave crests in a certain time is obtained according to a peak value detection algorithm to obtain a corresponding heart rate value; and upload the heart rate value of gathering to backstage terminal through the server, commander can judge corresponding rescue personnel's health according to the heart rate value, and this health information can be as judging whether rescue personnel are fit for continuing the reference standard of follow-up rescue work, and the commander carries out overall management of being convenient for.

In this embodiment, the smart bracelet device further includes an acceleration acquisition module, which selects an acceleration sensor with model number ADXL345 to acquire acceleration raw data, and is in signal connection with the processing module, and the processing module is configured to receive the acceleration raw data, process the acceleration raw data according to a derivation operation, and generate a step value; when the device is used specifically, the walking direction and the acceleration force of a user are detected through the acceleration sensor, the device is judged to be in a horizontal or vertical position, whether the device moves is judged, a sinusoidal curve track representing stepping motion is obtained, and a corresponding step value can be obtained by counting a plurality of peak points appearing in the curve track through derivation operation; the principle is similar to the existing intelligent bracelet step counting principle, and is not repeated herein.

Example four

Different from the first embodiment, in the present embodiment, the smart band device is in a wrist protection shape, and the smart band device can completely wrap the wrist; positioning points are arranged on the surface of the inner side of the wrist of the intelligent bracelet device and used for conducting wearing guidance of the intelligent bracelet device; a pressure sensor is fixedly arranged on one side of the wrist of the intelligent bracelet device, corresponds to a blood vessel of the thumb in the wrist and is electrically connected with the processing module;

the intelligent bracelet device is characterized in that a tension testing mechanism is arranged on the outer side of the wrist of the intelligent bracelet device along the length direction of the forearm, the tension testing mechanism comprises an elastic wire and a tension sensor, one end of the elastic wire is fixed with one end, close to the fingers, of the outer side of the wrist of the intelligent bracelet device, the other end of the elastic wire is fixed with the tension sensor, and the tension sensor is fixed at one end, close to the elbow, of the outer side of the wrist of the; the tension sensor is electrically connected with the processing module;

the LED lamp with the reminding function further comprises a reminding unit, wherein the reminding unit is composed of three LED lamps with different colors, and in the embodiment, the three LED lamps are respectively green, yellow and red; the reminding unit is electrically connected with the processing module;

the processing module is also used for starting an emergency mode after the data received from the tension sensor continuously reach a threshold value X seconds; in the emergency mode, the processing module judges whether the current thumb force is in a suitable interval according to the received data of the tension sensor and the pressure data detected by the pressure sensor; when the analysis result is that the thumb force is in a proper interval, the processing unit controls the green LED lamp of the reminding unit to light, when the analysis result is that the thumb force is too small, the processing unit controls the yellow LED lamp of the reminding unit to light, and when the analysis result is that the thumb force is too large, the processing unit controls the red lamp of the reminding unit to light.

The specific implementation process is as follows:

when rescuing, sometimes the wounded need carry out first aid immediately, if inlay the people, but the staff mostly does not possess professional skill, hold the dynamics of pinching not accurately, be difficult to reach effectual effect.

Among the prior art, have and set up pressure sensor on intelligent bracelet device, the rescuer gets intelligent bracelet device and puts in wounded person's middle part, and during the staff nipped the people through pressure sensor's position, whether it is suitable to detect the dynamics through pressure sensor received pressure.

However, because the place of rescue personnel rescue probably has the radiation, and the protective clothing is worn to the rescue personnel, and inconvenient taking off intelligent bracelet device to also there is danger if taking off protective clothing rescue personnel self in order to take off intelligent bracelet device. Except for this, the force applying mode when nipping people is pressing instead of nipping through the bracelet, so the first-aid effect is greatly reduced.

In the application, the intelligent bracelet device is in a wrist protection shape and can completely wrap the wrist; there is the setpoint on the wrist side surface of intelligence bracelet device for carry out intelligence bracelet device and wear and guide. Put another way, through the setpoint, the staff can wear intelligent bracelet device in bracelet fixed position department to be convenient for accurate collection subsequent data.

Pressure sensor has set firmly on wrist one side of intelligent bracelet device, and pressure sensor corresponds with the interior survey thumb blood vessel department of wrist, and pressure sensor is connected with processing module electricity. When the person pinches, the thumb of the worker exerts force, and in such a state, the blood vessel of the thumb on the inner side of the wrist expands to be convex, and the degree of the convex expansion of the blood vessel changes along with the force exerted by the thumb. The degree of the vasodilatation bulge can be detected through the pressure sensor, and the force exerting size of the thumb can be known.

However, to achieve the above effect, there is a big premise that the rotation angle of the wrist must be at a preset angle; because, if the rotation angle of the wrist is different, even if the thumb is applied with the same force, the degree of the corresponding vasodilation protrusion is different. However, in the first aid, the worker must pay attention to the surrounding environment and the force of the thumb, so that it is difficult to keep the angle of the wrist fixed.

Therefore, in this application, the wrist outside of intelligent bracelet device is equipped with the tension test mechanism along forearm length direction, and the tension test mechanism includes elastic wire and force sensor, and the one end of elastic wire is fixed with the one end that the intelligent bracelet device wrist outside is close to the finger, and the other end is fixed with force sensor, and force sensor fixes the one end that is close to the elbow in the intelligent bracelet device wrist outside. The principle of the tension testing mechanism is similar to that of a portable electronic scale, when the outer side and the inner side of the wrist rotate, the elastic wire can be stretched to generate tension, and the tension sensor can detect the tension and send the tension to the processing module. Put differently, processing module can know the deformation volume of elastic line through force sensor's detected data, and then knows staff's wrist turned angle.

Through the rotation angle of the wrist and the corresponding expansion convex degree of the thumb, the processing module can analyze the actual force of the thumb of the worker at the moment. When the force is applied properly, the processing unit controls the green LED lamp of the reminding unit to light, when the force is applied too small, the processing unit controls the yellow LED lamp of the reminding unit to light, and when the force is applied too large, the processing unit controls the red lamp of the reminding unit to light. Therefore, the force of the thumb of the worker can be guided in real time when the worker takes first aid.

In addition, in this application, processing module still is used for when the data that receive the force sensor continue to reach threshold value X second after, starts the emergency mode. Stated differently, the processing module may initiate the rescue mode after the wrist has been rotated a predetermined angle (e.g., 90 degrees inward wrist bend) for X seconds. Not only is the operation convenient, but also the structure is simplified (the starting device is omitted), and the accidental starting can be avoided because the starting lasts for X seconds.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.