CN117687492A - Electronic tag capable of automatically switching temperature measurement modes - Google Patents
Electronic tag capable of automatically switching temperature measurement modes Download PDFInfo
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- CN117687492A CN117687492A CN202311707906.2A CN202311707906A CN117687492A CN 117687492 A CN117687492 A CN 117687492A CN 202311707906 A CN202311707906 A CN 202311707906A CN 117687492 A CN117687492 A CN 117687492A
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 75
- 238000012545 processing Methods 0.000 claims abstract description 53
- 230000007613 environmental effect Effects 0.000 claims abstract description 18
- 230000006854 communication Effects 0.000 claims description 47
- 238000004891 communication Methods 0.000 claims description 45
- 230000007958 sleep Effects 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 13
- 230000004622 sleep time Effects 0.000 claims description 4
- 230000005059 dormancy Effects 0.000 claims 3
- 238000004861 thermometry Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002045 lasting effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses an electronic tag capable of automatically switching temperature measurement modes, which comprises: the energy acquisition and management module is used for converting the received environmental energy into electric energy, supplying power to the high-frequency clock and the signal processing module when the switch is turned on, and stopping supplying power to the high-frequency clock and the signal processing module when the switch is turned off; the processor is used for receiving the temperature value of the object attached by the electronic tag detected by the temperature sensor, and switching to a low-power-consumption temperature measurement mode when the temperature value is lower than an alarm limit; the processor is also used for switching to a high-power consumption temperature measurement mode when the temperature value is determined to be higher than the alarm limit. The energy acquisition and management module converts environmental energy into electric energy, and the temperature value of an object attached to the electronic tag obtained by the temperature sensor is processed to be switched to a low-power-consumption temperature measurement mode or a high-power-consumption temperature measurement mode, and the equipment to be powered is reduced by closing a switch in the low-power-consumption temperature measurement mode, so that the consumption of electric energy in the electronic tag is reduced, and the duration of endurance is prolonged.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an electronic tag capable of automatically switching a temperature measuring mode.
Background
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However, because the time-varying of the environmental energy is unstable, the power consumption of the terminal is a great challenge, particularly in the scene of temperature monitoring of the object attached to the electronic tag, if the temperature of the object is always lower than the alarm limit, the continuous use of the environmental energy for power supply greatly increases the consumption of the electric energy in the electronic tag, thereby obviously shortening the duration of the electronic tag.
Disclosure of Invention
The invention provides an electronic tag capable of automatically switching a temperature measurement mode, so as to realize automatic switching of the temperature measurement mode and prolong the duration of the electronic tag.
According to an aspect of the present invention, there is provided an electronic tag capable of automatically switching a temperature measurement mode, comprising a processor, a temperature sensor, a low frequency clock, a high frequency clock, and a signal processing module respectively connected to the processor, and an energy acquisition and management module respectively connected to the high frequency clock and the signal processing module through a switch, wherein the energy acquisition and management module is directly connected to the processor and the temperature sensor,
the energy acquisition and management module is used for converting received environmental energy into electric energy, supplying power to the high-frequency clock and the signal processing module when the switch is turned on, stopping supplying power to the high-frequency clock and the signal processing module when the switch is turned off, and continuously supplying power to the processor and the temperature sensor;
the processor is used for receiving the temperature value of the object attached by the electronic tag detected by the temperature sensor, switching to a low-power-consumption temperature measurement mode when the temperature value is lower than an alarm limit, and communicating with the temperature sensor based on the low-frequency clock in the low-power-consumption temperature measurement mode;
the processor is further used for switching to a high-power-consumption temperature measurement mode when the temperature value is determined to be higher than the alarm limit, and communicating with external equipment through the temperature sensor and the signal processing module based on the high-frequency clock in the high-power-consumption temperature measurement mode so as to continuously report the temperature value to the external equipment.
According to another aspect of the present invention, there is provided a method for automatically switching a temperature measurement mode of an electronic tag, including:
the energy acquisition and management module is used for converting received environmental energy into electric energy, supplying power to the high-frequency clock and the signal processing module when the switch is turned on, stopping supplying power to the high-frequency clock and the signal processing module when the switch is turned off, and continuously supplying power to the processor and the temperature sensor;
the temperature value of an object attached to the electronic tag detected by the temperature sensor is received through the processor, when the temperature value is lower than an alarm limit, the temperature sensor is switched to a low-power-consumption temperature measurement mode, and communication is carried out with the temperature sensor based on a low-frequency clock in the low-power-consumption temperature measurement mode;
and when the processor determines that the temperature value is higher than the alarm limit, switching to a high-power-consumption temperature measurement mode, and communicating with external equipment through the temperature sensor and the signal processing module based on the high-frequency clock in the high-power-consumption temperature measurement mode so as to continuously report the temperature value to the external equipment.
According to the technical scheme, the energy acquisition and management module is used for converting environmental energy into electric energy, the temperature value of the object attached to the electronic tag obtained according to the temperature sensor is processed and switched to a low-power-consumption temperature measurement mode or a high-power-consumption temperature measurement mode, and the equipment to be powered is reduced by closing the switch in the low-power-consumption temperature measurement mode, so that the consumption of electric energy in the electronic tag is reduced, and the duration of endurance is prolonged.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the invention or to delineate the scope of the invention. Other features of the present invention will become apparent from the description that follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic tag capable of automatically switching a temperature measurement mode according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electronic tag capable of automatically switching a temperature measurement mode according to a second embodiment of the present invention;
fig. 3 is a flowchart of an automatic temperature measurement mode switching method of an electronic tag according to a third embodiment of the present invention.
Detailed Description
In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, "comprises," "comprising," and "having" and any variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or terminal that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or terminal.
Example 1
Fig. 1 is a schematic structural diagram of an electronic tag capable of automatically switching a temperature measurement mode according to an embodiment of the present invention, where the embodiment is applicable to a case where the electronic tag performs automatic switching of the temperature measurement mode, as shown in fig. 1, the structure of the electronic tag capable of automatically switching the temperature measurement mode includes: the device comprises a processor, a temperature sensor, a low-frequency clock, a high-frequency clock and a signal processing module which are respectively connected with the processor, and an energy acquisition and management module which is respectively connected with the high-frequency clock and the signal processing module through a switch, wherein the energy acquisition and management module is directly connected with the processor and the temperature sensor.
The energy acquisition and management module is used for converting received environmental energy into electric energy, supplying power to the high-frequency clock and the signal processing module when the switch is turned on, stopping supplying power to the high-frequency clock and the signal processing module when the switch is turned off, and continuously supplying power to the processor and the temperature sensor; the processor is used for receiving the temperature value of the object attached by the electronic tag detected by the temperature sensor, switching to a low-power-consumption temperature measurement mode when the temperature value is lower than an alarm limit, and communicating with the temperature sensor based on a low-frequency clock in the low-power-consumption temperature measurement mode; and the processor is also used for switching to a high-power-consumption temperature measurement mode when the temperature value is determined to be higher than the alarm limit, and communicating with external equipment through the temperature sensor and the signal processing module based on the high-frequency clock in the high-power-consumption temperature measurement mode so as to continuously report the temperature value to the external equipment.
Optionally, the processor is configured to generate a timing sleep signal when the temperature value is determined to be lower than the alarm limit, and send the timing sleep signal to the switch, so that the switch is turned off according to the timing sleep signal and enters the low-power consumption temperature measurement mode.
Optionally, the processor acquires the temperature value sent by the temperature sensor in real time in a low-power consumption temperature measurement mode, and adopts a low-frequency clock to count down the sleep time; the processor is further used for generating an energizing signal when the countdown is finished or not and the received temperature value is higher than the alarm limit based on the low-frequency clock, and sending the energizing signal to the switch so that the switch is opened according to the energizing signal; and the energy acquisition and management module is used for supplying power to the high-frequency clock and the signal processing module when the switch is opened, so that the processor can communicate with external equipment once through the temperature sensor and the signal processing module based on the high-frequency clock.
Specifically, the electronic tag in this embodiment may be attached to a specified object, for example, an object that can change in temperature according to environmental changes, and the temperature sensor in the electronic tag may acquire a temperature value of the specified object. In this embodiment, the alarm limit may be preconfigured in the processor, and in an actual application scenario, the alarm limit is generally made to be lower than the control limit, for example, the alarm is performed at a temperature exceeding 50 ℃ and the remote intervention control is performed at a temperature exceeding 60 ℃. A certain time is generally required for the label to rise from 50 ℃ to 60 ℃, so that a low-frequency reporting mode of the scheme below a warning line is reasonable, and even if the label cannot be immediately reported just to 50 ℃, the label is not at great risk if the label is successfully reported before 60 ℃. Of course, this embodiment is merely illustrative, and the specific value of the alarm limit is not limited, and the user may configure the alarm according to the actual situation. The processor, upon receiving the temperature value transmitted by the temperature sensor, generates a timed sleep signal when it is determined that the temperature value is below the configured alarm limit and transmits the generated timed sleep signal to the switch. The energy acquiring and managing module in the embodiment is specifically connected with the high-frequency clock and the signal processing module through the switch, so that whether the high-frequency clock and the signal processing module with more consumed electric quantity supply power can be determined through the state of the change-over switch. Because there is no potential safety hazard when the temperature value of the sensor is lower than the alarm limit, the electronic tag does not need to report the temperature of high frequency in principle, so in this case, the processor can control the switch to be turned off through the generated sleep signal, the switch in this embodiment can be specifically a MOS transistor, of course, this embodiment is only illustrated, but the specific type of the switch is not limited, the generated sleep signal turns on the MOS transistor with a very low duty ratio, so under the condition that the MOS transistor is turned off, the high-frequency clock signal and the signal processing module which consume very much power can stop supplying power, at this time, only the processor performs data communication with the temperature sensor under the action of the low-frequency clock, and at this time, the electronic tag enters the low-power consumption temperature measurement mode.
When the processor sends a sleep signal to the switch for timing, for example, a sleep signal lasting 10 seconds, and the switch is closed for 10 seconds according to the sleep signal. In the low-power consumption temperature measurement mode, the low-frequency clock is required to be used for counting down the sleep time, for example, when the counting down is finished for 10 seconds, the processor generates an energizing signal and sends the energizing signal to the switch, at the moment, the switch is turned on according to the energizing signal, so that the high-frequency clock with high power consumption and the signal processing module are powered on, the processor can communicate with the external device once through the temperature sensor and the signal processing module based on the high-frequency clock, and therefore the external device can acquire the temperature value of an object attached by the electronic tag. When the processor determines that the electronic tag is still in a safe state through the temperature value sent by the temperature sensor, the timing sleep signal is generated again, so that when the electronic tag is in the safe state, the electronic tag only needs to be periodically communicated with external equipment to enable the external equipment to know the temperature value of an object attached to the electronic tag, but a high-frequency clock and a signal processing module with more power consumption in most time are in a closed state, so that the consumption of electric energy in the energy acquisition and management module is greatly reduced, and the duration of the electronic tag can be correspondingly prolonged.
It should be noted that, when the timing sleep signal is a sleep signal lasting 10 seconds, and the processor performs sleep countdown through the low-frequency clock, if the processor receives that the temperature value sent by the temperature sensor exceeds the alarm limit when not reaching 10 seconds yet, it indicates that the safety hazard exists in the specified object attached to the electronic tag, at this time, the processor does not need to wait for the countdown to finish, directly generates an energizing signal, and sends the energizing signal to the switch, thereby supplying power to the high-frequency clock and the signal processing module with more power consumption.
Optionally, the processor is configured to generate an energizing signal when the temperature value is determined to be higher than the alarm limit, and send the energizing signal to the switch, so that the switch is turned on according to the energizing signal to enter a high-power consumption temperature measurement mode.
Optionally, the processor is configured to obtain a pre-configured communication mode in the high-power consumption thermometric mode, and communicate with the external device according to the communication mode, where the communication mode includes an active communication mode or a passive communication mode.
Optionally, when the communication mode is an active communication mode, the processor is configured to send the obtained temperature value to the digital codec module;
the digital coding and decoding module is used for coding the temperature value based on the high-frequency clock to obtain a coded signal and transmitting the coded signal to the radio-frequency analog front-end module;
the radio frequency analog front end module is used for modulating the coded signals to obtain modulated signals, and sending the modulated signals to external equipment through an antenna so that the external equipment can identify the modulated signals to obtain the temperature value of an object to which the tag is attached.
Optionally, when the communication mode is a passive communication mode, the radio frequency analog front end module is configured to receive an inventory command sent by the external device through the antenna, demodulate the inventory command to obtain a demodulation signal, and send the demodulation signal to the digital codec module; the digital coding and decoding module is used for decoding the demodulation signal based on the high-frequency clock to obtain a decoding signal and transmitting the decoding signal to the processor; the processor is used for sending the acquired temperature value to the digital encoding and decoding module when receiving the decoding signal; the digital coding and decoding module is used for coding the temperature value based on the high-frequency clock to obtain a coded signal and transmitting the coded signal to the radio-frequency analog front-end module; the radio frequency analog front end module is used for modulating the coded signals to obtain modulated signals, and sending the modulated signals to external equipment through an antenna so that the external equipment can identify the modulated signals to obtain the temperature value of an object to which the tag is attached.
Specifically, when the temperature value obtained by the processor from the sensor is higher than the alarm limit, the electronic tag needs to report nearly timely, so that the reader or the base station can monitor the temperature of the object attached by the tag in real time and remotely control in time. At this time, the processor generates an energizing signal and sends the energizing signal to the switch, and the MOS tube switch is in an open state according to the energizing signal, so that power is supplied to the high-frequency clock and the signal processing module with more power consumption, and the electronic tag communicates with the reader or the base station in real time.
It should be noted that, in the high-power consumption thermometric mode, the processor may communicate with the external device according to a pre-configured communication mode, i.e. an active communication mode or a passive communication mode. The active communication mode is that when the processor does not receive the signaling sent by the external equipment, the processor automatically sends communication information to the external equipment as long as the processor determines to enter the motion working mode; however, the passive communication mode is only exemplified in the present embodiment, and is not limited to a specific communication mode adopted by the processor and the external device, as long as the real-time communication with the external device in the sport operation mode can be realized, and the present embodiment is not limited to the protection scope of the present application.
According to the technical scheme, the energy acquisition and management module is used for converting environmental energy into electric energy, the temperature value of the object attached to the electronic tag obtained by the temperature sensor is processed and switched to a low-power-consumption temperature measurement mode or a high-power-consumption temperature measurement mode, and the equipment to be powered is reduced by closing the switch in the low-power-consumption temperature measurement mode, so that the consumption of electric energy in the electronic tag is reduced, and the duration of endurance is prolonged.
Example two
Fig. 2 is a schematic structural diagram of an electronic tag capable of automatically switching a temperature measurement mode according to an embodiment of the present invention, and the structure and the working principle of a signal processing module are specifically described based on the above embodiment. As shown in fig. 2, the signal processing module includes a radio frequency analog front end module and a digital codec module.
The radio frequency analog front end module is used for acquiring downlink signals of external equipment through an antenna of the electronic tag and sending uplink signals to the external equipment. The digital coding and decoding module is responsible for decoding the downlink baseband signal demodulated by the radio frequency analog front end module and coding the data returned by the processor, and high-frequency clock support is needed in the decoding process to reduce the decoding error rate or the packet error rate. The processor is responsible for processing communication protocols and analyzing data, and communicating with the sensor through an SPI/I2C standard interface.
In a specific implementation, when the processor determines that the electronic tag is in the high-power consumption temperature measurement mode, if a passive communication mode is adopted to communicate with external equipment, the radio frequency analog front end module, the digital encoding and decoding module and the high-frequency clock with more power consumption are all restored to be powered under the condition that the switch is opened. And under the condition that the external equipment determines that the interface is powered back, a temperature acquisition instruction is sent to the electronic tag, and the radio frequency analog front end module receives the temperature acquisition instruction through the antenna and demodulates the temperature acquisition instruction to acquire a demodulation signal, namely, converts the analog signal into a digital signal through demodulation. The radio frequency analog front end module transmits the obtained demodulation signal in digital form to the digital encoding and decoding module. The digital coding and decoding module decodes the demodulation signal based on the high-frequency clock to obtain a decoding signal which can be identified by the processor, and sends the decoding signal to the processor, and the processor automatically feeds back the temperature value obtained from the temperature sensor to the digital coding and decoding module as response information when receiving the decoding signal. The digital coding and decoding module can obtain a coded signal after coding the temperature value and send the coded signal to the radio frequency analog front-end module, and the coding and the decoding at the moment are inverse operation processes. The radio frequency analog front end module modulates the coded signal to obtain a modulated signal, namely, converts a digital signal into an analog signal through modulation, and feeds the modulated signal back to external equipment through an antenna. After receiving the modulation signal fed back by the electronic tag, the external device can extract the temperature value contained in the modulation signal, so that the real-time monitoring of the specified object attached to the electronic tag is realized.
In another embodiment, when the processor determines that the electronic tag is in the high-power consumption temperature measurement mode, if the active communication mode is adopted to communicate with the external device, the specific communication process is substantially the same as the processing operation after the processor receives the decoding signal in the passive communication mode, so that a detailed description is omitted in this embodiment. The difference is that the processor can actively communicate with the external device through the data encoding and decoding module and the radio frequency analog front-end module only by determining to enter the high-power-consumption temperature measurement mode under the condition that the processor does not need to receive the temperature acquisition instruction sent by the external device.
Example III
Fig. 3 is a flowchart of an automatic temperature measurement mode switching method for an electronic tag according to a third embodiment of the present invention, where the present embodiment is applicable to a case of automatic temperature measurement mode switching for an electronic tag, and the method may be performed by an electronic tag capable of automatically switching temperature measurement modes according to the foregoing embodiments. As shown in fig. 3, the method includes:
step S101, the energy acquisition and management module converts the received environmental energy into electric energy, and supplies power to the high-frequency clock and the signal processing module when the switch is turned on, and stops supplying power to the high-frequency clock and the signal processing module when the switch is turned off, and continuously supplies power to the processor and the temperature sensor.
Specifically, the energy acquisition and management module of the present embodiment receives environmental energy, such as light energy, temperature difference energy or radio frequency energy, which is, of course, only illustrated and not limited in the specific form, and the energy acquisition and management module converts the acquired environmental energy into electric energy, and since the electric energy acquired by the electronic tag through the environmental energy is very limited, in order to ensure the duration of the electronic tag as much as possible, the acquired electric quantity needs to be saved as much as possible, and the electronic tag is used in an effective communication process.
The high-frequency clock and the signal processing module are components with relatively high power consumption, so that communication connection with external equipment in real time is not needed when the temperature of a specified object attached by the electronic tag is determined to be lower than an alarm limit, and the switch can be closed to stop supplying power to the high-frequency clock and the signal processing module, thereby saving electric energy by switching the state of the switch. Because the processor and the acceleration sensor are directly connected with the energy acquisition and management module, the energy acquisition and management module can continuously supply power to the processor and the acceleration sensor no matter how the state of the switch is switched.
Step S102, the temperature value of the object attached to the electronic tag detected by the temperature sensor is received through the processor, when the temperature value is lower than the alarm limit, the temperature sensor is switched to a low-power-consumption temperature measurement mode, and communication is carried out with the temperature sensor based on a low-frequency clock in the low-power-consumption temperature measurement mode.
Specifically, the electronic tag in this embodiment may be attached to a specified object, for example, an object that can change in temperature according to environmental changes, and the temperature sensor in the electronic tag may acquire a temperature value of the specified object. In this embodiment, the alarm limit may be preconfigured in the processor, and in an actual application scenario, the alarm limit is generally made to be lower than the control limit, for example, the alarm is performed at a temperature exceeding 50 ℃ and the remote intervention control is performed at a temperature exceeding 60 ℃. A certain time is generally required for the label to rise from 50 ℃ to 60 ℃, so that a low-frequency reporting mode of the scheme below a warning line is reasonable, and even if the label cannot be immediately reported just to 50 ℃, the label is not at great risk if the label is successfully reported before 60 ℃. Of course, this embodiment is merely illustrative, and the specific value of the alarm limit is not limited, and the user may configure the alarm according to the actual situation. The processor, upon receiving the temperature value transmitted by the temperature sensor, generates a timed sleep signal when it is determined that the temperature value is below the configured alarm limit and transmits the generated timed sleep signal to the switch. The energy acquiring and managing module in the embodiment is specifically connected with the high-frequency clock and the signal processing module through the switch, so that whether the high-frequency clock and the signal processing module with more consumed electric quantity supply power can be determined through the state of the change-over switch. Because there is no potential safety hazard when the temperature value of the sensor is lower than the alarm limit, the electronic tag does not need to report the temperature of high frequency in principle, so in this case, the processor can control the switch to be turned off through the generated sleep signal, the switch in this embodiment can be specifically a MOS transistor, of course, this embodiment is only illustrated, but the specific type of the switch is not limited, the generated sleep signal turns on the MOS transistor with a very low duty ratio, so under the condition that the MOS transistor is turned off, the high-frequency clock signal and the signal processing module which consume very much power can stop supplying power, at this time, only the processor performs data communication with the temperature sensor under the action of the low-frequency clock, and at this time, the electronic tag enters the low-power consumption temperature measurement mode.
When the processor sends a sleep signal to the switch for timing, for example, a sleep signal lasting 10 seconds, and the switch is closed for 10 seconds according to the sleep signal. In the low-power consumption temperature measurement mode, the low-frequency clock is required to be used for counting down the sleep time, for example, when the counting down is finished for 10 seconds, the processor generates an energizing signal and sends the energizing signal to the switch, at the moment, the switch is turned on according to the energizing signal, so that the high-frequency clock with high power consumption and the signal processing module are powered on, the processor can communicate with the external device once through the temperature sensor and the signal processing module based on the high-frequency clock, and therefore the external device can acquire the temperature value of an object attached by the electronic tag. When the processor determines that the electronic tag is still in a safe state through the temperature value sent by the temperature sensor, the timing sleep signal is generated again, so that when the electronic tag is in the safe state, the electronic tag only needs to be periodically communicated with external equipment to enable the external equipment to know the temperature value of an object attached to the electronic tag, but a high-frequency clock and a signal processing module with more power consumption in most time are in a closed state, so that the consumption of electric energy in the energy acquisition and management module is greatly reduced, and the duration of the electronic tag can be correspondingly prolonged.
It should be noted that, when the timing sleep signal is a sleep signal lasting 10 seconds, and the processor performs sleep countdown through the low-frequency clock, if the processor receives that the temperature value sent by the temperature sensor exceeds the alarm limit when not reaching 10 seconds yet, it indicates that the safety hazard exists in the specified object attached to the electronic tag, at this time, the processor does not need to wait for the countdown to finish, directly generates an energizing signal, and sends the energizing signal to the switch, thereby supplying power to the high-frequency clock and the signal processing module with more power consumption.
Step S103, switching to a high-power-consumption temperature measurement mode by the processor when the temperature value is higher than the alarm limit, and communicating with the external device through the temperature sensor and the signal processing module based on the high-frequency clock in the high-power-consumption temperature measurement mode so as to continuously report the temperature value to the external device.
Specifically, when the temperature value obtained by the processor from the sensor is higher than the alarm limit, the electronic tag needs to report nearly timely, so that the reader or the base station can monitor the temperature of the object attached by the tag in real time and remotely control in time. At this time, the processor generates an energizing signal and sends the energizing signal to the switch, and the MOS tube switch is in an open state according to the energizing signal, so that power is supplied to the high-frequency clock and the signal processing module with more power consumption, and the electronic tag communicates with the reader or the base station in real time.
It should be noted that, in the high-power consumption thermometric mode, the processor may communicate with the external device according to a pre-configured communication mode, i.e. an active communication mode or a passive communication mode. The active communication mode is that when the processor does not receive the signaling sent by the external equipment, the processor automatically sends communication information to the external equipment as long as the processor determines to enter the motion working mode; however, the passive communication mode is only exemplified in the present embodiment, and is not limited to a specific communication mode adopted by the processor and the external device, as long as the real-time communication with the external device in the sport operation mode can be realized, and the present embodiment is not limited to the protection scope of the present application.
According to the technical scheme, the energy acquisition and management module is used for converting environmental energy into electric energy, the temperature value of the object attached to the electronic tag obtained by the temperature sensor is processed and switched to a low-power-consumption temperature measurement mode or a high-power-consumption temperature measurement mode, and the equipment to be powered is reduced by closing the switch in the low-power-consumption temperature measurement mode, so that the consumption of electric energy in the electronic tag is reduced, and the duration of endurance is prolonged.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present invention may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution of the present invention are achieved, and the present invention is not limited herein.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (10)
1. An electronic tag capable of automatically switching a temperature measurement mode is characterized by comprising a processor, a temperature sensor, a low-frequency clock, a high-frequency clock and a signal processing module which are respectively connected with the processor, and an energy acquisition and management module which is respectively connected with the high-frequency clock and the signal processing module through a switch, wherein the energy acquisition and management module is directly connected with the processor and the temperature sensor,
the energy acquisition and management module is used for converting received environmental energy into electric energy, supplying power to the high-frequency clock and the signal processing module when the switch is turned on, stopping supplying power to the high-frequency clock and the signal processing module when the switch is turned off, and continuously supplying power to the processor and the temperature sensor;
the processor is used for receiving the temperature value of the object attached by the electronic tag detected by the temperature sensor, switching to a low-power-consumption temperature measurement mode when the temperature value is lower than an alarm limit, and communicating with the temperature sensor based on the low-frequency clock in the low-power-consumption temperature measurement mode;
the processor is further used for switching to a high-power-consumption temperature measurement mode when the temperature value is determined to be higher than the alarm limit, and communicating with external equipment through the temperature sensor and the signal processing module based on the high-frequency clock in the high-power-consumption temperature measurement mode so as to continuously report the temperature value to the external equipment.
2. The electronic tag capable of automatically switching temperature measurement modes according to claim 1, wherein the signal processing module comprises a radio frequency analog front end module and a digital codec module;
the external device includes a base station or a reader.
3. The electronic tag of claim 2, wherein the processor is configured to generate a timed sleep signal when the temperature value is determined to be below the alarm limit, and send the timed sleep signal to the switch to cause the switch to close to the low power consumption temperature measurement mode according to the timed sleep signal.
4. The electronic tag capable of automatically switching a temperature measurement mode according to claim 3, wherein the processor acquires a temperature value sent by the temperature sensor in real time in the low-power consumption temperature measurement mode, and counts down sleep time by adopting the low-frequency clock;
the processor is further configured to generate an energizing signal when it is determined that the countdown is over or not over but the received temperature value is higher than the alarm limit based on the low frequency clock, and send the energizing signal to the switch, so that the switch is turned on according to the energizing signal;
the energy acquisition and management module is used for supplying power to the high-frequency clock and the signal processing module when the switch is opened, so that the processor can communicate with external equipment once through the temperature sensor and the signal processing module based on the high-frequency clock.
5. The electronic tag of claim 2, wherein the processor is configured to generate an energizing signal when the temperature value is determined to be above the alarm limit, and send the energizing signal to the switch to cause the switch to open into the high power consumption temperature measurement mode according to the energizing signal.
6. The electronic tag of claim 5, wherein the processor is configured to obtain a pre-configured communication mode in the high power consumption thermometry mode and communicate with an external device according to the communication mode, wherein the communication mode comprises an active communication mode or a passive communication mode.
7. The electronic tag of claim 6, wherein when the communication mode is an active communication mode, the processor is configured to send the obtained temperature value to the digital codec module;
the digital encoding and decoding module is used for encoding the temperature value based on the high-frequency clock to obtain an encoded signal and transmitting the encoded signal to the radio-frequency analog front-end module;
the radio frequency analog front end module is used for modulating the coded signal to obtain a modulated signal, and transmitting the modulated signal to the external device through an antenna so that the external device can identify the modulated signal to obtain a temperature value of an object to which the tag is attached.
8. The electronic tag capable of automatically switching a temperature measurement mode according to claim 6, wherein when the communication mode is a passive communication mode, the radio frequency analog front end module is configured to receive an inventory command sent by the external device through an antenna, demodulate the inventory command to obtain a demodulation signal, and send the demodulation signal to the digital codec module;
the digital encoding and decoding module is used for decoding the demodulation signal based on the high-frequency clock to obtain a decoding signal and transmitting the decoding signal to the processor;
the processor is used for sending the acquired temperature value to the digital coding and decoding module when the decoding signal is received;
the digital encoding and decoding module is used for encoding the temperature value based on the high-frequency clock to obtain an encoded signal and transmitting the encoded signal to the radio-frequency analog front-end module;
the radio frequency analog front end module is used for modulating the coded signal to obtain a modulated signal, and transmitting the modulated signal to the external device through an antenna so that the external device can identify the modulated signal to obtain a temperature value of an object to which the tag is attached.
9. An automatic temperature measurement mode switching method of an electronic tag is characterized by comprising the following steps:
the energy acquisition and management module is used for converting received environmental energy into electric energy, supplying power to the high-frequency clock and the signal processing module when the switch is turned on, stopping supplying power to the high-frequency clock and the signal processing module when the switch is turned off, and continuously supplying power to the processor and the temperature sensor;
the temperature value of an object attached to the electronic tag detected by the temperature sensor is received through the processor, when the temperature value is lower than an alarm limit, the temperature sensor is switched to a low-power-consumption temperature measurement mode, and communication is carried out with the temperature sensor based on a low-frequency clock in the low-power-consumption temperature measurement mode;
and when the processor determines that the temperature value is higher than the alarm limit, switching to a high-power-consumption temperature measurement mode, and communicating with external equipment through the temperature sensor and the signal processing module based on the high-frequency clock in the high-power-consumption temperature measurement mode so as to continuously report the temperature value to the external equipment.
10. The method of claim 9, wherein receiving, by the processor, a temperature value of an object to which the electronic tag is attached, the temperature value being detected by the temperature sensor, and switching to a low power consumption temperature measurement mode when the temperature value is below an alarm limit, comprises:
receiving a temperature value of an object attached to the electronic tag detected by the temperature sensor through the processor, and generating a timing dormancy signal when the temperature value is lower than the alarm limit;
and sending the timing dormancy signal to the switch so that the switch is closed according to the timing dormancy signal and enters the low-power consumption temperature measurement mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311707906.2A CN117687492A (en) | 2023-12-13 | 2023-12-13 | Electronic tag capable of automatically switching temperature measurement modes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311707906.2A CN117687492A (en) | 2023-12-13 | 2023-12-13 | Electronic tag capable of automatically switching temperature measurement modes |
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| CN117687492A true CN117687492A (en) | 2024-03-12 |
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| CN202311707906.2A Pending CN117687492A (en) | 2023-12-13 | 2023-12-13 | Electronic tag capable of automatically switching temperature measurement modes |
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