CN111784948A - Social distance monitoring and tracing device and method thereof - Google Patents
Social distance monitoring and tracing device and method thereof Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 16
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- 208000035473 Communicable disease Diseases 0.000 claims abstract description 7
- 208000015181 infectious disease Diseases 0.000 claims abstract description 7
- 230000006806 disease prevention Effects 0.000 claims abstract description 6
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- 230000036760 body temperature Effects 0.000 claims description 12
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- G—PHYSICS
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- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
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- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
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- H04B5/77—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for interrogation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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Abstract
A social distance monitoring and tracing device and a method thereof belong to the technical field of medical Internet of things wireless identification applied to infectious disease prevention and control, and relate to the social distance monitoring and tracing device and the method thereof. The electronic device applied to the field of infectious disease prevention and control and used for monitoring and tracing the social distance of people comprises a main control unit, a forward identification module, a backward identification module, an NFC storage module and an alarm module. After a user wears the device, the user can transmit and receive wireless signals through the device to carry out comprehensive identity identification and distance judgment; when the distance between the device and other users wearing the device is smaller than the set safe distance, the device can give an alarm in the forms of sound, light, vibration and the like to the users wearing the device, stores the device IDs of the other users with the distances smaller than the safe distance in the device, and can read the device IDs through Bluetooth, NFC and other modes so as to facilitate later inquiry and tracing.
Description
Technical Field
The invention belongs to the technical field of medical Internet of things wireless identification applied to infectious disease prevention and control, and relates to a social distance monitoring and tracing device and a method thereof.
Technical Field
How to effectively prevent and control COVID-19 in daily work and life. Among the numerous preventive measures, the principle of maintaining a safe social distance is a measure actively recommended by the world health organization and each country. With the further development of society, people gradually take off the mask, and the maintenance of safe social distance is particularly important. On the other hand, the investigation of close contact with people infected with the COVID-19 virus is also a key means for the prevention and control of infectious diseases.
At present, the measures for keeping the safety distance or the stopping state is the original state, which is basically realized by actively reminding people, marking a warning line on the ground, even wearing simple devices such as a distance keeping cap and a distance keeping ring by individuals, and the effect is difficult to be satisfactory. The epidemiological investigation is carried out on close contacts of COVID-19 virus infected personnel, although the analysis is carried out by combining big data and a mobile communication positioning technology at present, the problems of poor precision, high error rate and high missing rate still exist, and whether the close contacts really reach the standard of the close contacts or not in a certain specific environment can not be accurately judged; it is not possible to accurately trace back which people a COVID-19 virus infector has made close contact with in a particular area.
In view of this, how to design a device which is provided for users and has low cost and convenient wearing can alarm and remind users who wear the device with a distance less than a set safe distance; meanwhile, the device can record the device ID bound with the close contact person with the wearing user distance less than the safe distance within a certain time for tracing, so that the accuracy and efficiency of epidemiological investigation are improved, which are the key points of the invention.
Disclosure of Invention
The invention aims to solve the technical problem of making up the defects of the existing measures and providing the electronic device which is applied to the field of infectious disease prevention and control and monitors and traces the social distance of people, namely after a user wears the device, the device can transmit and receive wireless signals to carry out comprehensive identity identification and distance judgment; when the distance between the device and other users wearing the device is smaller than the set safe distance, the device can give an alarm in the forms of sound, light, vibration and the like to the users wearing the device, stores the device IDs of the other users with the distances smaller than the safe distance in the device, and can read the device IDs through Bluetooth, NFC and other modes so as to facilitate later inquiry and tracing.
The device comprises a main control unit, a forward identification module, a backward identification module, an NFC storage module and an alarm module, wherein the main control unit is realized by adopting an embedded processor (MCU chip and the like) and is respectively connected with the alarm module, a sensor module and a Bluetooth communication module through digital interfaces; the backward identification module consists of a backward wireless transceiving unit and a backward directional antenna and is connected through a radio frequency interface, and the forward identification module and the backward identification module are respectively in wireless connection with the main control unit through digital interfaces; the NFC storage module is realized by an NFC double-interface chip integrating a memory and an NFC interface, and the NFC storage module is connected with the main control unit through a digital interface.
Furthermore, the alarm module is composed of a light emitting diode, a buzzer and a vibration motor,
furthermore, the sensor module mainly comprises a temperature sensor, a heart rate sensor and other modules,
furthermore, the bluetooth communication module is mainly implemented by a bluetooth chip.
Further, the radio frequency transceiver chips (such as 2.4ghz ism band radio frequency chips) used by the wireless transceiver units in the forward identification module and the backward identification module are implemented, and the forward directional antenna and the backward directional antenna are implemented by microstrip antennas.
The invention provides a method for realizing an electronic device for monitoring and tracing the social distance of people, wherein in order to realize the omnidirectional detection of a user, a forward identification module is worn in the forward direction of the user; the back recognition module is installed at the back of the user.
In order to realize the characteristics that the user can realize interactive identification after wearing the device and the device is not interfered with each other, when the device normally works, the main control unit controls the device to be in a periodic working mode, as follows:
the main control unit divides a working period Tw into Nt transmitting time slots, and in each working period, the main control unit takes two random numbers Nf and Nb from 1 to Nt as the transmitting time slot numbers of the forward identification module and the backward identification module respectively;
when the electronic device is close to the NFC reader-writer, the electronic device can automatically communicate with the NFC reader-writer through the NFC storage module, and the storage information in the NFC storage module is uploaded to upper computer equipment such as a mobile phone and a card reader;
when the electronic device is connected to Bluetooth upper computer equipment such as a mobile phone and the like through a Bluetooth module, the upper computer can set parameters such as the safety distance, the standard exceeding temperature and the like of the electronic device through an interactive instruction, and simultaneously can read the internal storage information through the Bluetooth module;
the time slots of the wireless transceiving units of the forward identification module and the backward identification module outside the transmitting time slot are set to be a receiving mode through the main control unit.
When the forward identification module and the backward identification module reach respective transmission time slots, the information such as ID codes of respective wireless module transmission equipment can be used for other users to identify.
The forward identification module and the backward identification module can automatically receive the device ID transmitted by other devices in a receiving mode, and send the received ID code and the related parameters (signal amplitude or phase, arrival time and the like) of the wireless signal to the main control unit. The main control unit judges the distance between the main control unit and the equipment according to the signal parameters, if the distance exceeds the set safe distance, the main control unit alarms in a buzzing, flashing or vibrating mode through the alarm module, and information such as the ID codes and the like and information such as the current time record and the like are sent to the NFC storage module.
In each working cycle, the main control unit can measure the body temperature of a user through the sensor module, if the body temperature of the user exceeds a set temperature, the alarm module gives an alarm in a buzzing, flashing or vibrating mode, and the body temperature exceeding the standard and the current time are recorded into the NFC storage module.
An implementation method of an electronic device for monitoring and tracing social distances of people is specifically described as follows:
(1) after the device is powered on, equipment is initialized according to set parameters, and a working period is set to be Tw and comprises Nt working time slots;
(2) after initialization, the main control unit enters a cycle working mode, Nc is time slot counting, and the initial value is set to be 0; the main control unit adopts a random algorithm to take two random numbers of Nb and Nf between 1 and Nt, and the random numbers are respectively used as the transmitting time slots of the forward identification module and the backward identification module;
(3) if the NFC read-write equipment is accessed at this moment, the main control unit enters an NFC instruction interaction state through the NFC storage module to perform parameter configuration and storage data reading of the device;
(4) if the Bluetooth read-write equipment is accessed at this time, the main control unit enters a Bluetooth instruction interaction state through the Bluetooth module to perform parameter configuration and storage data reading of the device;
(5) the main control unit sets the forward identification module and the backward identification module to be in a wireless receiving mode;
(6) clearing the Ts timer and starting timing;
(7) under the receiving mode, if the forward identification module or the backward identification module receives a wireless signal sent by other devices, the forward identification module and the backward identification module enter a receiving signal processing mode. The main control unit can judge the distance between the user and the user of the signal sending party according to the parameters (amplitude, phase, arrival time, etc.) of the wireless signal. If the distance is less than the set safe distance, the main control unit alarms in the forms of sound, light or vibration and the like through the alarm module and records the information such as the ID, the receiving time and the like received by the transmitting device into the NFC storage module, if the distance is greater than the safe distance, the main control unit enables the alarm module to be in a closed state, and after the processing is finished, the main control unit resets the forward identification module and the backward identification module to a wireless signal receiving mode;
(8) if the Ts timer is not overtime at the moment, returning to the step (7), and enabling the device to be in a circulating receiving and processing state;
(9) if Ts is overtime at the moment, accumulating 1 by an execution time slot counter Nc, and if Ts is not overtime, executing downwards in sequence;
(10) if Nc is greater than Nt at this time: when a working period is over, a sensor processing mode is started, the main control unit reads parameters of the sensor through the system, if the parameters such as temperature, heart rate and the like exceed a set threshold value, the system is in a sensor alarm state, the system can alarm in a sound, light or vibration mode through the alarm module, and standard exceeding data and time are recorded into the NFC storage module. If no alarm is given, the alarm module is closed; after the above operations, the operation mode is switched to (2) to carry out the cycle operation mode in the work period,
(11) if Nc is not greater than Nt: the sequence is executed downwards in the order in which,
(12) if Nc is Nb, then entering a forward identification module to transmit a time slot, and the main control unit transmits a wireless signal containing the ID information of the device through the forward identification module for other devices to identify;
(13) if Nc is equal to Nf, entering a forward identification module to transmit a time slot, and transmitting a wireless signal containing the ID information of the device by the main control unit through a backward identification module for other devices to identify;
(14) after the above operations, the device switches to a receiving mode of setting the forward identification module and the backward identification module through the main control unit, and the device is in a wireless receiving mode.
The beneficial effects of the invention include:
the invention has proposed an infection prevention and control field to people's social distance to control and trace back the electronic device and implement method, namely after users wear the apparatus, can launch and receive the wireless signal through the apparatus, carry on all-round identity recognition and distance judgement front and back; when the distance between the device and other users wearing the device is less than the set safe distance, the device can give an alarm in the forms of sound, light, vibration and the like to the users wearing the device.
For other users with the distance less than the safe distance, the device ID and the time of the user can be recorded in the memory, and the user can be conveniently read through Bluetooth, NFC and the like for later inquiry and tracing.
The invention adopts the forward and backward wireless modules, can effectively overcome the shielding effect of human bodies on electromagnetic waves, and greatly provides the distance judgment precision.
The receiving and transmitting of the wireless signals adopted by the invention adopts the directional antenna, thereby reducing the influence of human body effect on the performance of the antenna on the one hand, reducing the distance measurement error caused by multipath effect on the other hand, and greatly improving the distance measurement precision.
The invention has the sensor module, can detect parameters such as body temperature, heart rate and the like of a user at regular time, can give an alarm and record at any time if the body temperature, the heart rate and the like exceed standards, and increases the means of infectious disease prevention and control.
The invention adopts a transmission mode of randomly addressing the transmission time slot, and can effectively solve the problem of transmission interference of a plurality of devices.
Drawings
FIG. 1 is a view showing the structure of an apparatus of the present invention
FIG. 2 is a flow chart of a method of the present invention
FIG. 3 is a flowchart illustrating a method according to an embodiment as shown: 1. a main control unit; 2. a forward identification module: 2-1, a forward wireless transceiving unit; 2-2, a forward directional antenna; 3. a back recognition module: 3-1, a wireless transceiver unit is arranged in a back direction; 3-2, a reverse directional antenna 4, an NFC storage module: 4-1, a memory; 4-2, an NFC unit; 5. an alarm module; 6. a sensor module; 7. and a Bluetooth communication module.
Detailed Description
Example 1
The present invention is further described with reference to fig. 1, fig. 2 and fig. 3, but the scope of the present invention is not limited thereto.
The invention provides a method for realizing an electronic device for monitoring and tracing social distances of people, which is shown in figure 1:
the device comprises a main control unit 1, a forward identification module 2, a backward identification module 3, an NFC storage module 4 and an alarm module 5, wherein the main control unit 1 is realized by adopting an embedded processor (MCU chip and the like) and is respectively connected with the alarm module 5, a sensor module 6 and a Bluetooth communication module 7 through digital interfaces, and the forward identification module 2 consists of a forward wireless transceiving unit 2-1 and a forward directional antenna 2-2 and is connected through a radio frequency interface; the back identification module 3 consists of a back wireless transceiving unit 3-1 and a back directional antenna 3-2 and is connected through a radio frequency interface, and the front identification module 2 and the back identification module 3 are respectively in wireless connection with the main control unit 1 through digital interfaces; the NFC storage module 4 is realized by an NFC double-interface chip integrating a memory and an NFC interface, and the NFC storage module 4 is connected with the main control unit 1 through a digital interface.
In this embodiment, the main control unit 1 is implemented by an embedded processor (MCU chip, etc.). The forward identification module 2 and the forward wireless transceiving unit 2-1 and the backward wireless transceiving unit 3-1 in the backward identification module 3 are implemented by using radio frequency transceiving chips (e.g., radio frequency chips in a 2.4ghz ism band, etc.). The forward directional antenna 2-2 and the backward directional antenna 3-2 are realized by microstrip antennas.
Further, the NFC storage module 4 is implemented by using an NFC dual-interface chip in which the memory 4-1 and the NFC interface are integrated.
Further, the alarm module 5 is mainly implemented by devices such as a light emitting diode, a buzzer, a vibrating motor and the like.
Furthermore, the sensor module 6 is mainly implemented by a temperature sensor, a heart rate sensor and other modules.
Further, the bluetooth communication module 7 is mainly implemented by a bluetooth chip.
In order to realize the omnidirectional detection of the user, the forward identification module 2 is worn in the forward direction of the user; the back recognition module 3 is installed in the back of the user.
In order to realize the interactive recognition and non-interference characteristics after the electronic device is worn by a user, when the device normally works, the periodic working mode of the main control unit 1 is as shown in fig. 2.
In this embodiment, the main control unit 1 sets a duty cycle Tw (generally, between 1 and 10 seconds) and a duty cycle Ts millisecond (generally, between 10 and 50 millimeters), so that the total number of transmission slots Nc is Tw 1000/Ts, and in each duty cycle, the main control unit 1 takes two random numbers Nf and Nb from 1 to Nt as the number of transmission slots of the forward identification module 2 and the backward identification module 3, respectively.
When the electronic device is close to the NFC reader-writer, the electronic device can automatically communicate with the NFC reader-writer through the NFC storage module 4, and storage information in the NFC storage module 4 is uploaded to the reader-writer.
When the electronic device is connected to Bluetooth upper computer equipment such as a mobile phone through the Bluetooth module 7, the upper computer can set parameters such as the safe distance, the standard exceeding temperature and the like of the electronic device through interactive instructions, and meanwhile, the internal storage information of the electronic device can be read through the Bluetooth module 7.
The time slots of the wireless transceiving units of the forward identification module 2 and the backward identification module 3 outside the transmitting time slot are set to be a receiving mode through the main control unit 1.
When the forward identification module 2 and the backward identification module 3 reach respective transmission time slots, information such as ID codes of respective wireless module transmission devices can be used for other users to identify.
The forward identification module 2 and the backward identification module 3 automatically receive the device ID transmitted by other devices in the receiving mode, and send the received information such as ID codes and the signal strength value of the wireless signal to the main control unit 1. The main control unit 1 determines the distance between itself and the device according to the transmission path loss of the wireless signal strength in the free space. The basic method is as follows:
in this embodiment, the frequency of the wireless signal used is 2450 MHz. The safe distance is set to 1m or more, and the path loss of the electromagnetic wave signal at 1m is about-40 dB. When the transmitter power is set to 0dBm (1mW), the transmission directional antenna gain Gt is 4dBi, the reception directional antenna gain Gr is 4dBi, and the system loss is-2 dB.
The received signal strength is about Pr ═ Pt + Lp + Gt + Gr + Ls ═ 34dBm
If the received signal strength is greater than or equal to-34 dBm, the distance between the receiving device and the transmitting device is judged to be less than or equal to the safety distance, otherwise, the distance is greater than the safety distance.
If the safety distance exceeds the set safety distance, the alarm module 5 gives an alarm in a buzzing, flashing or vibrating mode, and information such as the ID code and the current time record is stored in the NFC storage module 4.
In each working cycle, the main control unit 1 can measure the body temperature of the user through the sensor module 6, if the body temperature of the user exceeds the set temperature, the alarm module 5 gives an alarm in a buzzing, flashing or vibrating mode, and the body temperature exceeding the standard and the current time are recorded into the NFC storage module 4.
The working principle of the above-described device can be further expressed by the flow shown in fig. 3 as follows:
(1) and after the device is powered on, initializing equipment according to the set parameters. The set duty cycle is Tw seconds, the working time slot is Ts milliseconds, and the total number of time slots is Nt ═ Tw × 1000)/Ts.
(2) After initialization, the master control unit 1 enters a cyclic operating mode. Nc is the slot count, and the initial value is set to 0; the main control unit adopts a random algorithm to take two random numbers of Nb and Nf between 1 and Nt. As the transmission time slots of the forward identification module 2 and the backward identification module 3, respectively.
(3) If the NFC read-write equipment is accessed at this moment, the main control unit 1 enters an NFC instruction interaction state through the NFC storage module 4 to perform parameter configuration and storage data reading of the device.
(4) If the Bluetooth read-write equipment is accessed at this time, the main control unit 1 enters a Bluetooth instruction interaction state through the Bluetooth communication module 7 to perform parameter configuration and storage data reading of the device.
(5) The main control unit 1 sets the forward identification module 2 and the backward identification module 3 to be in a wireless receiving mode.
(6) And clearing the Ts timer and starting timing.
(7) In the receiving mode, if any module receives a wireless signal sent by another device, the main control unit 1 determines the distance between the user and the signal sending user according to the signal strength of the wireless signal, in which the forward identification module 2 and the backward identification module 3 are located.
(8) If the distance is less than the set safe distance, the main control unit 1 alarms in the form of sound, light or vibration through the alarm module 5, and records the information such as the ID and the receiving time of the receiving device in the NFC storage module 4.
(9) If the distance is greater than the safety distance, the main control unit 1 will put the alarm module 5 in the off state.
(10) After the above processing, the main control unit 1 resets the forward identification module 2 and the backward identification module 3 to the wireless signal receiving mode
(11) If the Ts timer does not time out at this time, returning to (7), the device is in a loop receiving and processing state.
(12) If Ts times out at this time, the execution slot counter Nc is incremented by 1. If Ts is not timed out, the sequence is executed downwards.
(13) If Nc is greater than Nt at this time: indicating the end of a duty cycle. The main control unit 1 reads parameters of the sensor module 6 through the system, and if the parameters such as temperature, heart rate and the like exceed set thresholds, the system is in a sensor alarm state. The system can give an alarm in the modes of sound, light or vibration and the like through the alarm module 5, and records the standard exceeding data and time into the NFC storage module 4. If no alarm is given, the alarm module 5 is turned off. After the above operation, the operation proceeds to (2) the duty cycle inner circulation operation mode (large circulation) is performed. If Nc is not greater than Nt: the sequence is executed downwards.
(14) If Nc equals Nb at this time, the forward identification module 2 is entered to transmit a time slot, and the main control unit 1 transmits a wireless signal containing the information of the ID of the own device through the forward identification module 2 for being identified by other devices.
(15) If Nc equals Nf, the time slot for transmitting is entered into the forward identification module 2, and the main control unit 1 transmits a wireless signal containing the information of the ID of the device through the backward identification module 3 for being identified by other devices.
(16) After the above operations, go to (5) to set the forward identification module 2 and the backward identification module 3 to the receiving mode through the main control unit 1, and the device is in the working mode of performing wireless reception.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all modifications and equivalents as fall within the true spirit and scope of the invention.
Claims (7)
1. A social distance monitoring and tracing device mainly comprises a main control unit, a forward identification module, a backward identification module, an NFC storage module and an alarm module, wherein the main control unit is respectively connected with the alarm module, a sensor module and a Bluetooth communication module through digital interfaces; the backward identification module consists of a backward wireless transceiving unit and a backward directional antenna and is connected through a radio frequency interface, and the forward identification module and the backward identification module are respectively in wireless connection with the main control unit through digital interfaces; the NFC storage module is connected with the main control unit through a digital interface.
2. The social distance monitoring and tracking device of claim 1, wherein: the main control unit is realized by adopting an embedded processor (MCU and the like) chip, and adopts a random algorithm to take two random numbers of Nb and Nf between 1 and Nt as the transmitting time slots of the forward identification module and the backward identification module respectively.
3. The social distance monitoring and tracking device of claim 1, wherein: the wireless transceiving units in the forward identification module and the backward identification module are realized by adopting radio frequency transceiving chips, and the forward directional antenna and the backward directional antenna are realized by adopting a microstrip antenna.
4. The social distance monitoring and tracking device of claim 1, wherein: the NFC storage module is realized by an NFC double-interface chip integrating a memory and an NFC interface, and information such as ID codes and current time records is sent to the NFC storage module.
5. The social distance monitoring and tracking device of claim 1, wherein: the alarm module is formed by connecting a light-emitting diode, a buzzer and a vibration motor, and can give an alarm in the forms of sound, light, vibration and the like to a worn user when the distance between the alarm module and other users wearing the device is less than a set safe distance.
6. The social distance monitoring and tracking device of claim 1, wherein: the sensor module mainly adopts temperature sensor and heart rate sensor module to constitute, regularly detects user's body temperature and parameter such as heart rate, can report to the police and record at any time if exceeding standard, has increased the means of infectious disease prevention and control.
7. A method for realizing a social distance monitoring and tracing device is characterized by comprising the following steps:
the periodic cycle method of the main control unit comprises the following steps:
the main control unit divides a working period Tw into Nt transmitting time slots, and in each working period, the main control unit takes two random numbers Nf and Nb from 1 to Nt as the transmitting time slot numbers of the forward identification module and the backward identification module respectively;
when the electronic device is close to the NFC reader-writer, the electronic device can automatically communicate with the NFC reader-writer through the NFC storage module, and the storage information in the NFC storage module is uploaded to the reader-writer;
when the electronic device is connected to Bluetooth upper computer equipment such as a mobile phone and the like through a Bluetooth module, the upper computer can set parameters such as the safety distance, the standard exceeding temperature and the like of the electronic device through an interactive instruction, and simultaneously can read the internal storage information through the Bluetooth module;
the time slots of the wireless transceiving units of the forward identification module and the backward identification module outside the transmitting time slot are set to be a receiving mode through the main control unit;
when the forward identification module and the backward identification module reach respective transmission time slots, the ID codes of the wireless module transmission devices are coded by the forward identification module and the backward identification module to be identified by other users;
the front identification module and the back identification module can automatically receive the device IDs transmitted by other devices in a receiving mode, the received ID codes and relevant parameters (signal amplitude or phase, arrival time and the like) of wireless signals are sent to the main control unit, the main control unit judges the distance between the main control unit and the devices according to the signal parameters, if the distance exceeds a set safe distance, the main control unit alarms in a buzzing, flashing or vibrating mode through the alarm module, and the ID codes and the current time are recorded into the NFC storage module;
in each working cycle, the main control unit can measure the body temperature of a user through the sensor module, if the body temperature of the user exceeds a set temperature, the alarm module gives an alarm in a buzzing, flashing or vibrating mode, and the body temperature exceeding the standard and the current time are recorded into the NFC storage module.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112153352A (en) * | 2020-10-20 | 2020-12-29 | 上海理工大学 | Unmanned aerial vehicle epidemic situation monitoring auxiliary method and device based on deep learning |
| CN112711015A (en) * | 2020-12-23 | 2021-04-27 | 中科芯未来微电子科技成都有限公司 | Safe distance reminding equipment |
| CN112866945A (en) * | 2021-01-11 | 2021-05-28 | 成戍 | Infectious disease prevention, control and traceability system based on sensor network and big data analysis |
| CN113034865A (en) * | 2021-01-21 | 2021-06-25 | 深圳壹智云科技有限公司 | Social alarm system based on laser ranging |
| WO2022097159A1 (en) * | 2020-11-03 | 2022-05-12 | Abhishek Kumar | Technology enhanced contact tracing mechanism |
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2020
- 2020-06-15 CN CN202010544634.9A patent/CN111784948A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112153352A (en) * | 2020-10-20 | 2020-12-29 | 上海理工大学 | Unmanned aerial vehicle epidemic situation monitoring auxiliary method and device based on deep learning |
| WO2022097159A1 (en) * | 2020-11-03 | 2022-05-12 | Abhishek Kumar | Technology enhanced contact tracing mechanism |
| CN112711015A (en) * | 2020-12-23 | 2021-04-27 | 中科芯未来微电子科技成都有限公司 | Safe distance reminding equipment |
| CN112866945A (en) * | 2021-01-11 | 2021-05-28 | 成戍 | Infectious disease prevention, control and traceability system based on sensor network and big data analysis |
| CN113034865A (en) * | 2021-01-21 | 2021-06-25 | 深圳壹智云科技有限公司 | Social alarm system based on laser ranging |
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