Wireless temperature measurement module system and method using induction electrode slice as antenna

Abstract

The invention relates to a wireless temperature measurement module system and method using an induction electrode slice as an antenna, and belongs to the technical field of wireless temperature measurement. The wireless temperature measurement module system comprises a temperature conversion and forwarding module, a temperature acquisition module, an energy collection and signal emission module, a logic conversion module and a voltage stabilization module. The system measures the temperature through the temperature acquisition module and outputs an electric signal, and after the electric signal is converted into a temperature measurement result through the temperature conversion and forwarding module, the energy collection and signal emission module supplies power and emits the result to a receiving device. And the logic conversion module controls the output of the voltage stabilizing module to ensure stable operation of the system. Compared with a traditional system, the energy taking electrode and the antenna are integrated, the electromagnetic shielding effect of the temperature measuring device on the antenna is avoided, and the communication distance is effectively increased.

Description

Technical Field

[0001] The present invention relates to a wireless temperature measurement module system and method using an induction electrode sheet as an antenna, belonging to the technical field of wireless temperature measurement. Background Art

[0002] In key industries such as power, chemical, petroleum, and metallurgy, wireless temperature measurement technology has become a core measure to ensure the safe operation of equipment and prevent accidents. Especially in the power field, it is particularly crucial to monitor the temperature anomalies at the joints of power lines in real time, which helps to give early warnings and quickly handle potential overheating risks, thereby ensuring the continuous and stable power supply. With the continuous evolution of technology, wireless temperature measurement systems are developing towards being smaller and more integrated to cope with more complex and demanding application environments. Wireless temperature measurement technology is mainly applied in the power industry to monitor the temperature anomalies at the joints of power lines, thus providing an important guarantee for the stable supply of power. However, for the passive wireless temperature measurement products using electric field energy harvesting technology on the market currently, their built-in antennas are usually placed under the power-taking electrodes. Since the power-taking electrodes, as conductors, affect the radiation performance of the antennas, the actual communication distance of such products is usually short, generally only reaching a range of dozens of meters.

[0003] The patent application document with the publication number "CN108760062A" discloses a temperature sensor. The problem with this solution is that it relies on external power sources (such as batteries) for power supply and does not have a built-in energy harvesting mechanism. When the battery runs out of power, it needs to be replaced manually, increasing the operating cost and maintenance workload. Summary of the Invention

[0004] To solve the problems existing in the above-mentioned prior art, the present invention proposes a wireless temperature measurement module system and method using an induction electrode sheet as an antenna.

[0005] The technical solution of the present invention is as follows:

[0006] On the one hand, the present invention provides a wireless temperature measurement module system using an induction electrode sheet as an antenna, including a temperature conversion and forwarding module, a temperature acquisition module, an energy harvesting and signal transmission module, a logic conversion module, and a voltage stabilization module;

[0007] The output end of the energy harvesting and signal transmission module and the output end of the temperature conversion and forwarding module are connected to the input end of the logic conversion module, the output end of the logic conversion module and the output end of the energy harvesting and signal transmission module are connected to the input end of the voltage stabilization module, and the output end of the voltage stabilization module is connected to the input end of the temperature conversion and forwarding module;

[0008] The output end of the temperature acquisition module is connected to the input end of the temperature conversion and forwarding module, and the output end of the temperature conversion and forwarding module is connected to the input end of the energy harvesting and signal transmission module;

[0009] The temperature acquisition module outputs an electrical signal to the temperature conversion and forwarding module according to the measured temperature. The temperature conversion and forwarding module is used to convert the electrical signal into a temperature measurement result and forward it to the energy harvesting and signal transmission module;

[0010] The energy harvesting and signal transmission module is used for power supply and transmits the temperature measurement result to the receiving device through the electrodes of the energy harvesting and signal transmission module;

[0011] The logic conversion module is used to control whether the voltage stabilization module outputs a stable power supply.

[0012] As a preferred embodiment, the energy harvesting and signal transmission module includes a nano-watt energy harvesting chip U3, an input capacitor module, and an output energy extraction capacitor module;

[0013] The input capacitor module includes a third capacitor C72 and a fourth capacitor C75;

[0014] The output energy extraction capacitor module includes a fifth capacitor C38, a sixth capacitor C37, a seventh capacitor C36, an eighth capacitor C35, a ninth capacitor C34, a tenth capacitor C33, an eleventh capacitor C39, a twelfth capacitor C40, a thirteenth capacitor C41, and a fourteenth capacitor C42;

[0015] The input end PZ1 of the first piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the first electrode, the input end PZ2 of the second piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the second electrode, and the power good end PGOOD of the nano-watt energy harvesting chip U3 is connected to the input end of the logic conversion module;

[0016] The first output voltage selection terminal D0 and the second output voltage selection terminal D1 of the nano-watt energy harvesting chip U3 are grounded through a first capacitor, the second input voltage terminal VIN2 of the nano-watt energy harvesting chip U3 is grounded through a first capacitor, the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 is respectively connected to the input end of the voltage stabilization module and the input end of the logic conversion module, and is respectively grounded through the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor, the ninth capacitor, the tenth capacitor, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor, and the fourteenth capacitor;

[0017] The switch output terminal SW of the nano-watt energy harvesting chip U3 is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 through the first inductor L22. The built-in power rail generator connection terminal CAP of the nano-watt energy harvesting chip U3 is connected to the first input voltage terminal VIN of the nano-watt energy harvesting chip U3 through the fifteenth capacitor C62. The first input voltage terminal VIN of the nano-watt energy harvesting chip U3 is grounded through the third capacitor and the fourth capacitor respectively.

[0018] As a preferred embodiment, the voltage stabilizing module includes a low dropout linear regulator U11;

[0019] The input terminal VIN of the low dropout linear regulator is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 respectively, and is grounded through the sixteenth capacitor C65;

[0020] The ground terminal VSS of the low dropout linear regulator is grounded. The enable terminal EN of the low dropout linear regulator is connected to the input terminal of the logic conversion module. The output terminal VOUT of the low dropout linear regulator outputs power and is grounded.

[0021] As a preferred embodiment, the logic conversion module includes a logic gate chip;

[0022] The first input terminal A of the logic gate chip is connected to the power good terminal PGOOD of the nano-watt energy harvesting chip U3. The second input terminal B of the logic gate chip is connected to the temperature conversion and forwarding module through the first resistor R27. The ground terminal GND of the logic gate chip is grounded;

[0023] The output terminal Y of the logic gate chip is grounded through the second resistor R22. The output terminal Y of the logic gate chip is connected to the enable terminal EN of the low dropout linear regulator;

[0024] The power input terminal VCC of the logic gate chip is grounded through the seventeenth capacitor C68. The power input terminal VCC of the logic gate chip is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3.

[0025] As a preferred embodiment, the temperature acquisition module includes a negative temperature coefficient thermistor;

[0026] One end of the negative temperature coefficient thermistor R8 is grounded, and the other end is connected to one end of the third resistor R6 and one end of the fourth resistor R7 respectively;

[0027] The other end of the third resistor R6 and the other end of the fourth resistor R7 are connected to the temperature conversion and forwarding module.

[0028] As a preferred embodiment, the temperature conversion and forwarding module includes a wireless transceiver SOC chip;

[0029] The other end of the fourth resistor R7 is connected to the first ADC channel terminal PB3 of the wireless transceiver SOC chip;

[0030] The other end of the third resistor R6 is connected to the second ADC channel terminal PB4 and the general-purpose input / output terminal PB5 of the wireless transceiver SOC chip;

[0031] The second input terminal B of the logic gate chip is connected to the general-purpose input / output terminal PA1 of the wireless transceiver SOC chip through the first resistor;

[0032] The first internal digital part power supply terminal VDD1 of the wireless transceiver SOC chip is grounded through the eighteenth capacitor C56 respectively, and is connected to the power supply VCC;

[0033] The internal real-time clock power supply terminal VBAT of the wireless transceiver SOC chip is grounded through the nineteenth capacitor C59 respectively, and is connected to the power supply;

[0034] The internal analog part power supply terminal VDDA of the wireless transceiver SOC chip is grounded through the twentieth capacitor C51 respectively, and is connected to the power supply;

[0035] The second internal digital part power supply terminal VDD2 of the wireless transceiver SOC chip is grounded through the twenty-first capacitor C55 respectively, and is connected to the power supply;

[0036] The feedback terminal VFBSMPS of the internal switching power supply of the wireless transceiver SOC chip is grounded through the twenty-second capacitor C52 respectively, and is connected to the switching terminal VLXSMPS of the internal switching power supply of the wireless transceiver SOC chip through the second inductor L21;

[0037] The power supply terminal VDDSMPS of the internal switching power supply of the wireless transceiver SOC chip is grounded through the twenty-third capacitor C54 respectively, and is connected to the power supply. The twenty-fourth capacitor C69 is connected in parallel across the two ends of the twenty-third capacitor C54;

[0038] The ground terminal VSSSMPS of the internal switching power supply of the wireless transceiver SOC chip and the heat dissipation terminal EXP of the wireless transceiver SOC chip are grounded;

[0039] The power supply terminal VDDRF1V55 of the first internal radio frequency part of the wireless transceiver SOC chip is grounded through the twenty-fifth capacitor C57;

[0040] The power supply terminal VDDRF of the second internal radio frequency part of the wireless transceiver SOC chip is connected to one end of the twenty-sixth capacitor C53 and one end of the twenty-seventh capacitor C66 respectively, and is connected to the power supply. The other end of the twenty-sixth capacitor C53 and the other end of the twenty-seventh capacitor C66 are grounded;

[0041] The power supply terminal VDDPA of the internal radio frequency amplifier of the wireless transceiver SOC chip is grounded through the twenty-eighth capacitor C61 respectively, and is connected to the power supply terminal VDDRF1V55 of the first internal radio frequency part of the wireless transceiver SOC chip and the feedback terminal VFBSMPS of the internal switching power supply of the wireless transceiver SOC chip;

[0042] The input terminal OSC_IN of the external high-speed crystal oscillator of the wireless transceiver SOC chip is connected to the frequency input terminal 1 of the four-pin passive crystal oscillator X3, the output terminal OSC_OUT of the external high-speed crystal oscillator of the wireless transceiver SOC chip is connected to the frequency output terminal 3 of the four-pin passive crystal oscillator, and the first grounding terminal 2 and the second grounding terminal 4 of the four-pin passive crystal oscillator are grounded;

[0043] The upgrade configuration terminal BOOOT0 of the wireless transceiver SOC chip is grounded through the fifth resistor R11. The upgrade configuration terminal of the wireless transceiver SOC chip is used to receive the upgrade signal <<BOOT, and the reset terminal NRST of the wireless transceiver SOC chip is grounded through the twenty-ninth capacitor C58;

[0044] The output terminal VR_PA of the internal radio frequency amplifier power supply of the wireless transceiver SOC chip is grounded through the thirtieth capacitor C43 and the thirty-first capacitor C44 respectively, and is connected to one end of the fourth inductor L18 through the third inductor L19. The radio frequency signal output terminal RFO_LP of the wire transceiver SOC chip is connected to one end of the fourth inductor L18. The other end of the fourth inductor L18 is connected to one end of the thirty-second capacitor C45 respectively, and is grounded through the thirty-third capacitor C29. The thirty-fourth capacitor C46 is connected in parallel at both ends of the fourth inductor L18. The other end of the thirty-second capacitor C45 is connected to one end of the thirty-sixth capacitor C47 through the fifth inductor L15 respectively, and is grounded through the thirty-fifth capacitor C21 and grounded through the sixth inductor L20 respectively. The other end of the thirty-sixth capacitor C47 is connected to the first electrode respectively, and is connected to the second electrode through the seventh inductor L23.

[0045] On the other hand, the present invention also provides a wireless temperature measurement method using an induction electrode sheet as an antenna, including a temperature conversion and forwarding module, a temperature acquisition module, an energy harvesting and signal transmission module, a logic conversion module, and a voltage stabilization module;

[0046] The output terminal of the energy harvesting and signal transmission module and the output terminal of the temperature conversion and forwarding module are connected to the input terminal of the logic conversion module. The output terminal of the logic conversion module and the output terminal of the energy harvesting and signal transmission module are connected to the input terminal of the voltage stabilization module. The output terminal of the voltage stabilization module is connected to the input terminal of the temperature conversion and forwarding module;

[0047] The output end of the temperature acquisition module is connected to the input end of the temperature conversion and forwarding module, and the output end of the temperature conversion and forwarding module is connected to the input end of the energy harvesting and signal transmitting module;

[0048] The temperature acquisition module outputs an electrical signal to the temperature conversion and forwarding module according to the measured temperature, and the temperature conversion and forwarding module is used to convert the electrical signal into a temperature measurement result and forward it to the energy harvesting and signal transmitting module;

[0049] The energy harvesting and signal transmitting module is used for power supply and transmits the temperature measurement result to the receiving device through the electrodes of the energy harvesting and signal transmitting module;

[0050] The logic conversion module is used to control whether the voltage stabilizing module outputs a stable power supply.

[0051] As a preferred embodiment, the energy harvesting and signal transmitting module includes a nano-watt energy harvesting chip U3, an input capacitance module, and an output energy extraction capacitance module;

[0052] The input capacitance module includes a third capacitor C72 and a fourth capacitor C75;

[0053] The output energy extraction capacitance module includes a fifth capacitor C38, a sixth capacitor C37, a seventh capacitor C36, an eighth capacitor C35, a ninth capacitor C34, a tenth capacitor C33, an eleventh capacitor C39, a twelfth capacitor C40, a thirteenth capacitor C41, and a fourteenth capacitor C42;

[0054] The input end PZ1 of the first piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the first electrode, the input end PZ2 of the second piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the second electrode, and the power good end PGOOD of the nano-watt energy harvesting chip U3 is connected to the input end of the logic conversion module;

[0055] The first output voltage selection terminal D0 and the second output voltage selection terminal D1 of the nano-watt energy harvesting chip U3 are grounded through a first capacitor, the second input voltage terminal VIN2 of the nano-watt energy harvesting chip U3 is grounded through a first capacitor, the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 is respectively connected to the input end of the voltage stabilizing module and the input end of the logic conversion module, and is respectively grounded through the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor, the ninth capacitor, the tenth capacitor, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor, and the fourteenth capacitor;

[0056] The switch output terminal SW of the nano-watt energy harvesting chip U3 is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 through the first inductor L22. The built-in power rail generator connection terminal CAP of the nano-watt energy harvesting chip U3 is connected to the first input voltage terminal VIN of the nano-watt energy harvesting chip U3 through the fifteenth capacitor C62. The first input voltage terminal VIN of the nano-watt energy harvesting chip U3 is grounded through the third capacitor and the fourth capacitor respectively.

[0057] As a preferred embodiment, the voltage stabilizing module includes a low dropout linear regulator U11;

[0058] The input terminal VIN of the low dropout linear regulator is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 respectively, and is grounded through the sixteenth capacitor C65;

[0059] The ground terminal VSS of the low dropout linear regulator is grounded. The enable terminal EN of the low dropout linear regulator is connected to the input terminal of the logic conversion module. The output terminal VOUT of the low dropout linear regulator outputs power and is grounded.

[0060] As a preferred embodiment, the logic conversion module includes a logic gate chip;

[0061] The first input terminal A of the logic gate chip is connected to the power good terminal PGOOD of the nano-watt energy harvesting chip U3. The second input terminal B of the logic gate chip is connected to the temperature conversion and forwarding module through the first resistor R27. The ground terminal GND of the logic gate chip is grounded;

[0062] The output terminal Y of the logic gate chip is grounded through the second resistor R22. The output terminal Y of the logic gate chip is connected to the enable terminal EN of the low dropout linear regulator;

[0063] The power input terminal VCC of the logic gate chip is grounded through the seventeenth capacitor C68. The power input terminal VCC of the logic gate chip is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3.

[0064] The present invention has the following beneficial effects:

[0065] Through innovative design, the present invention successfully integrates the energy-taking electrode and the radiation antenna into one, and ingeniously realizes the function of using the energy-taking electrode as the radiation antenna at the same time. This pioneering design not only simplifies the structure of the device, but also performs excellently in significantly improving the radiation performance of the antenna. With this novel integrated structure, the antenna can radiate in a completely open space environment, thus perfectly avoiding the electromagnetic shielding problem caused by the main body of the temperature measurement device in the traditional design. A nanowatt-level energy harvesting chip is used for energy harvesting. This chip has the characteristics of high efficiency and low power consumption, and can collect enough energy in a weak environment to power the system. Through the coordinated work of the logic conversion module and the voltage stabilization module, intelligent power management is achieved, which can dynamically adjust the power output according to the system requirements, improving the system energy efficiency and service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 It is a connection diagram of the system modules of the present invention.

[0067] Figure 2 It is a circuit connection diagram of the energy harvesting and signal transmitting modules of the present invention.

[0068] Figure 3 It is a circuit connection diagram of the temperature conversion and forwarding module and the temperature acquisition module of the present invention.

[0069] Figure 4 It is a circuit connection diagram of the voltage stabilization module of the present invention.

[0070] Figure 5 It is a circuit connection diagram of the logic conversion module of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0071] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0072] It should be understood that the step numbers used in the text are only for convenient description and do not limit the execution order of the steps.

[0073] It should be understood that the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms.

[0074] The terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0075] The term "and / or" refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0076] Example 1:

[0077] In this embodiment, VIN, VOUT, CTRL, PG, VCCdisable>>, ADC, NTCctrl, and VSMPS all represent network names. Wires with the same network name indicate a connection relationship, and <<BOOT represents receiving an upgrade signal.

[0078] See Figure 1 , the present invention provides a wireless temperature measurement module system with an induction electrode sheet as an antenna, including a temperature conversion and forwarding module, a temperature acquisition module, an energy harvesting and signal transmission module, a logic conversion module, and a voltage stabilization module;

[0079] The output end of the energy harvesting and signal transmission module and the output end of the temperature conversion and forwarding module are connected to the input end of the logic conversion module. The output end of the logic conversion module and the output end of the energy harvesting and signal transmission module are connected to the input end of the voltage stabilization module. The output end of the voltage stabilization module is connected to the input end of the temperature conversion and forwarding module;

[0080] The output end of the temperature acquisition module is connected to the input end of the temperature conversion and forwarding module, and the output end of the temperature conversion and forwarding module is connected to the input end of the energy harvesting and signal transmission module;

[0081] The temperature acquisition module outputs an electrical signal to the temperature conversion and forwarding module according to the measured temperature. The temperature conversion and forwarding module is used to convert the electrical signal into a temperature measurement result and forward it to the energy harvesting and signal transmission module;

[0082] The energy harvesting and signal transmission module is used for power supply and transmits the temperature measurement result to the receiving device through the electrodes of the energy harvesting and signal transmission module;

[0083] The logic conversion module is used to control whether the voltage stabilization module outputs a stable power supply.

[0084] After the energy harvesting and signal transmission module harvests enough energy, it is converted into a stable voltage through a voltage regulator and supplied to the temperature conversion and forwarding module for use.

[0085] See Figure 2, As a preferred embodiment, the energy harvesting and signal transmitting module includes a nano-watt energy harvesting chip U3, an input capacitor module, and an output energy extraction capacitor module;

[0086] The model of the nano-watt energy harvesting chip U3 is LTC3688EDD-1#PBF;

[0087] The input capacitor module includes a third capacitor C72 and a fourth capacitor C75;

[0088] The output energy extraction capacitor module includes a fifth capacitor C38, a sixth capacitor C37, a seventh capacitor C36, an eighth capacitor C35, a ninth capacitor C34, a tenth capacitor C33, an eleventh capacitor C39, a twelfth capacitor C40, a thirteenth capacitor C41, and a fourteenth capacitor C42;

[0089] The input end PZ1 of the first piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the first electrode PZD, the input end PZ2 of the second piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the second electrode PZU>>, and the power good end PGOOD of the nano-watt energy harvesting chip U3 is connected to the input end of the logic conversion module;

[0090] The first output voltage selection terminal D0 and the second output voltage selection terminal D1 of the nano-watt energy harvesting chip U3 are grounded through a first capacitor, the second input voltage terminal VIN2 of the nano-watt energy harvesting chip U3 is grounded through a first capacitor, the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 is respectively connected to the input end of the voltage regulation module and the input end of the logic conversion module, and is respectively grounded through the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor, the ninth capacitor, the tenth capacitor, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor, and the fourteenth capacitor;

[0091] The switch output terminal SW of the nano-watt energy harvesting chip U3 is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 through a first inductor L22, the built-in power rail generator connection terminal CAP of the nano-watt energy harvesting chip U3 is connected to the first input voltage terminal VIN of the nano-watt energy harvesting chip U3 through a fifteenth capacitor C62, and the first input voltage terminal VIN of the nano-watt energy harvesting chip U3 is respectively grounded through a third capacitor and a fourth capacitor.

[0092] See Figure 4 , As a preferred embodiment, the voltage regulation module includes a low dropout linear regulator U11, with the model number HT73L33;

[0093] The input terminal VIN of the low-dropout linear regulator U11 is respectively connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3, and is grounded through the sixteenth capacitor C65;

[0094] The ground terminal VSS of the low-dropout linear regulator is grounded, the enable terminal EN of the low-dropout linear regulator is connected to the input terminal of the logic conversion module, the output terminal VOUT of the low-dropout linear regulator outputs power, and is grounded.

[0095] See Figure 5 , as a preferred embodiment, the logic conversion module includes a logic gate chip U15, with the model number SN74AUP1G32DBVR;

[0096] The first input terminal A of the logic gate chip U15 is connected to the power good terminal PGOOD of the nano-watt energy harvesting chip U3, the second input terminal B of the logic gate chip is connected to the temperature conversion and forwarding module through the first resistor R27, and the ground terminal GND of the logic gate chip is grounded;

[0097] The output terminal Y of the logic gate chip is grounded through the second resistor R22, and the output terminal Y of the logic gate chip is connected to the enable terminal EN of the low-dropout linear regulator;

[0098] The power input terminal VCC of the logic gate chip is grounded through the seventeenth capacitor C68, and the power input terminal VCC of the logic gate chip is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3.

[0099] As a preferred embodiment, the temperature acquisition module includes a negative temperature coefficient thermistor R8, with the model number B3950NTC;

[0100] One end of the negative temperature coefficient thermistor R8 is grounded, and the other end is respectively connected to one end of the third resistor R6 and one end of the fourth resistor R7;

[0101] The other ends of the third resistor R6 and the fourth resistor R7 are connected to the temperature conversion and forwarding module.

[0102] See Figure 3 , as a preferred embodiment, the temperature conversion and forwarding module includes a wireless transceiver SOC chip U13, with the model number STM32WLESCBUTR;

[0103] The first ADC channel terminal PB3 of the wireless transceiver SOC chip is connected to the other end of the fourth resistor R7;

[0104] The second ADC channel terminal PB4 and the general purpose input / output terminal PB5 of the wireless transceiver SOC chip are connected to the other end of the third resistor R6;

[0105] The second input terminal B of the logic gate chip U15 is connected to the general-purpose input / output terminal PA1 of the wireless transceiver SOC chip through a first resistor; as long as the wireless transceiver SOC chip U13 is still working, the general-purpose input / output terminal PA1 of the wireless transceiver SOC chip U13 will always output a high level. Since the two input terminals (A, B) of the logic gate chip U15 perform an OR operation, this can ensure that the voltage stabilization module will cut off the power supply to the wireless transceiver SOC chip U13 only after the wireless transceiver SOC chip U13 stops working;

[0106] The first internal digital part power supply terminal VDD1 of the wireless transceiver SOC chip U13 is grounded through the eighteenth capacitor C56 respectively, and is connected to the power supply VCC;

[0107] The internal real-time clock power supply terminal VBAT of the wireless transceiver SOC chip is grounded through the nineteenth capacitor C59 respectively, and is connected to the power supply;

[0108] The internal analog part power supply terminal VDDA of the wireless transceiver SOC chip is grounded through the twentieth capacitor C51 respectively, and is connected to the power supply;

[0109] The second internal digital part power supply terminal VDD2 of the wireless transceiver SOC chip is grounded through the twenty-first capacitor C55 respectively, and is connected to the power supply;

[0110] The feedback terminal VFBSMPS of the internal switching power supply of the wireless transceiver SOC chip is grounded through the twenty-second capacitor C52 respectively, and is connected to the switching terminal VLXSMPS of the internal switching power supply of the wireless transceiver SOC chip through the second inductor L21;

[0111] The power supply terminal VDDSMPS of the internal switching power supply of the wireless transceiver SOC chip is grounded through the twenty-third capacitor C54 respectively, and is connected to the power supply. The twenty-fourth capacitor C69 is connected in parallel across the twenty-third capacitor C54;

[0112] The ground terminal VSSSMPS of the internal switching power supply of the wireless transceiver SOC chip and the heat dissipation terminal EXP of the wireless transceiver SOC chip are grounded;

[0113] The power supply terminal VDDRF1V55 of the first internal radio frequency part of the wireless transceiver SOC chip is grounded through the twenty-fifth capacitor C57;

[0114] The power supply terminal VDDRF of the second internal radio frequency part of the wireless transceiver SOC chip is connected to one end of the twenty-sixth capacitor C53 and one end of the twenty-seventh capacitor C66 respectively, and is connected to the power supply. The other end of the twenty-sixth capacitor C53 and the other end of the twenty-seventh capacitor C66 are grounded;

[0115] The power supply terminal VDDPA of the internal radio frequency amplifier of the wireless transceiver SOC chip is grounded through the twenty-eighth capacitor C61 respectively, and is connected to the power supply terminal VDDRF1V55 of the first internal radio frequency part of the wireless transceiver SOC chip and the feedback terminal VFBSMPS of the internal switching power supply of the wireless transceiver SOC chip;

[0116] The input terminal OSC_IN of the external high-speed crystal oscillator of the wireless transceiver SOC chip is connected to the frequency input terminal 1 of the four-pin passive crystal oscillator X3, the output terminal OSC_OUT of the external high-speed crystal oscillator of the wireless transceiver SOC chip is connected to the frequency output terminal 3 of the four-pin passive crystal oscillator, and the first grounding terminal 2 and the second grounding terminal 4 of the four-pin passive crystal oscillator are grounded;

[0117] The upgrade configuration terminal BOOOT0 of the wireless transceiver SOC chip is grounded through the fifth resistor R11. The upgrade configuration terminal of the wireless transceiver SOC chip is used to receive the upgrade signal <<BOOT, and the reset terminal NRST of the wireless transceiver SOC chip is grounded through the twenty-ninth capacitor C58;

[0118] The output terminal VR_PA of the power supply of the internal radio frequency amplifier of the wireless transceiver SOC chip is grounded through the thirtieth capacitor C43 and the thirty-first capacitor C44 respectively, and is connected to one end of the fourth inductor L18 through the third inductor L19. The radio frequency signal output terminal RFO_LP of the line transceiver SOC chip is connected to one end of the fourth inductor L18. The other end of the fourth inductor L18 is connected to one end of the thirty-second capacitor C45 respectively, and is grounded through the thirty-third capacitor C29. The thirty-fourth capacitor C46 is connected in parallel at both ends of the fourth inductor L18. The other end of the thirty-second capacitor C45 is connected to one end of the thirty-sixth capacitor C47 through the fifth inductor L15 respectively, and is grounded through the thirty-fifth capacitor C21 and grounded through the sixth inductor L20 respectively. The other end of the thirty-sixth capacitor C47 is connected to the first electrode PZD respectively, and is connected to the second electrode PZU>> through the seventh inductor L23.

[0119] System principle:

[0120] Temperature acquisition module:

[0121] A negative temperature coefficient thermistor R8 is adopted, and the resistance value is changed through temperature change to generate a corresponding voltage signal. This signal is transmitted to the ADC input terminals (PB3, PB4, PB5) of the temperature conversion module through a voltage division circuit (resistors R6, R7).

[0122] Temperature conversion and forwarding module:

[0123] The core is the wireless transceiver SOC chip U13, which has an internal ADC to convert analog signals into digital temperature values and transmits the data after modulation through a radio frequency circuit (the matching network consists of inductors L15 - L23 and capacitors C21 - C47). The external crystal oscillator (X3) provides an accurate clock to ensure stable communication timing.

[0124] Energy harvesting and signal transmission module:

[0125] Use a nano - watt energy harvesting chip U3 to collect weak energy (such as electromagnetic fields or vibration energy) from the environment through piezoelectric elements (PZ1, PZ2). Input capacitors (C72, C75) and output capacitor networks (C38 - C42) are used for energy storage and filtering. Key innovation: The induction electrode plates (PZD, PZU) serve as both energy harvesting electrodes and radio frequency antennas at the same time, avoiding the shielding effect of metal electrodes on the antenna in traditional designs, thus improving the communication distance.

[0126] Logic conversion module:

[0127] Intelligent power management is realized by the logic gate chip U15. Its input terminal receives the "Power Good" (PGOOD) signal from the energy harvesting chip and the status signal of the temperature conversion module (through resistor R27). When the energy is sufficient and the system needs to work, the logic gate outputs a high level to trigger the enabling of the voltage regulation module.

[0128] Voltage regulation module:

[0129] The low - dropout linear regulator U11 outputs a stable voltage (such as 3.3V) under logic control and suppresses noise through a capacitor network (C65, C68, etc.) to provide a clean power supply for the temperature conversion module and the radio frequency circuit.

[0130] Circuit principle:

[0131] 1. Integrated design of energy harvesting and antenna:

[0132] Piezoelectric energy harvesting: The piezoelectric elements convert mechanical vibration or electric field energy into electrical energy, which is boosted and rectified by the U3 chip and stored in the capacitor network (C38 - C42).

[0133] Antenna integration: The electrode plates (PZD, PZU) are directly connected to the radio frequency matching network (inductor L23, capacitor C47, etc.), and specific - frequency (such as 433MHz or 2.4GHz) electromagnetic wave radiation is achieved by using the physical size and layout of the electrodes, without the need for an additional antenna structure.

[0134] Anti - shielding mechanism: The electrodes, as radiators with an open structure, avoid the shielding of the antenna by the traditional closed - type metal shell, enabling the efficient propagation of electromagnetic waves in free space.

[0135] 2. Intelligent power management:

[0136] Logic control flow:

[0137] The PGOOD signal of the energy harvesting chip indicates whether the voltage of the energy storage capacitor reaches the threshold;

[0138] The temperature conversion module sends a working status signal through GPIO(PA1);

[0139] When both conditions are met, the logic gate chip (OR function) outputs a high level to enable the voltage regulator and start the system power supply.

[0140] Low-power optimization: The voltage regulator only works when needed, reducing static power consumption and extending the energy storage time.

[0141] 3. RF signal transmission:

[0142] Impedance matching network: An LC matching network composed of inductors L15 - L23 and capacitors C21 - C47 matches the impedance of the U13 RF output (RFO_LP) of the SOC chip with the electrode antenna to maximize the transmission efficiency.

[0143] Harmonic suppression: Capacitors C29, C33, etc. are used to filter out harmonics to ensure that the signal complies with the communication frequency band specification.

[0144] Embodiment 2:

[0145] The present invention also provides a wireless temperature measurement method using an induction electrode sheet as an antenna, including a temperature conversion and forwarding module, a temperature acquisition module, an energy harvesting and signal transmission module, a logic conversion module, and a voltage regulation module;

[0146] The output end of the energy harvesting and signal transmission module and the output end of the temperature conversion and forwarding module are connected to the input end of the logic conversion module, the output end of the logic conversion module and the output end of the energy harvesting and signal transmission module are connected to the input end of the voltage regulation module, and the output end of the voltage regulation module is connected to the input end of the temperature conversion and forwarding module;

[0147] The output end of the temperature acquisition module is connected to the input end of the temperature conversion and forwarding module, and the output end of the temperature conversion and forwarding module is connected to the input end of the energy harvesting and signal transmission module;

[0148] The temperature acquisition module outputs an electrical signal to the temperature conversion and forwarding module according to the measured temperature, and the temperature conversion and forwarding module is used to convert the electrical signal into a temperature measurement result and forward it to the energy harvesting and signal transmission module;

[0149] The energy harvesting and signal transmission module is used for power supply and transmits the temperature measurement result to the receiving device through the electrode of the energy harvesting and signal transmission module;

[0150] The logic conversion module is used to control whether the voltage stabilization module outputs a stable power supply.

[0151] As a preferred embodiment, the energy harvesting and signal transmitting module includes a nano-watt energy harvesting chip U3, an input capacitor module, and an output energy harvesting capacitor module;

[0152] The input capacitor module includes a third capacitor C72 and a fourth capacitor C75;

[0153] The output energy harvesting capacitor module includes a fifth capacitor C38, a sixth capacitor C37, a seventh capacitor C36, an eighth capacitor C35, a ninth capacitor C34, a tenth capacitor C33, an eleventh capacitor C39, a twelfth capacitor C40, a thirteenth capacitor C41, and a fourteenth capacitor C42;

[0154] The input end PZ1 of the first piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the first electrode, the input end PZ2 of the second piezoelectric element of the nano-watt energy harvesting chip U3 is connected to the second electrode, and the power good end PGOOD of the nano-watt energy harvesting chip U3 is connected to the input end of the logic conversion module;

[0155] The first output voltage selection terminal D0 and the second output voltage selection terminal D1 of the nano-watt energy harvesting chip U3 are grounded through a first capacitor, the second input voltage terminal VIN2 of the nano-watt energy harvesting chip U3 is grounded through a first capacitor, the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 is respectively connected to the input end of the voltage stabilization module and the input end of the logic conversion module, and is respectively grounded through the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor, the ninth capacitor, the tenth capacitor, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor, and the fourteenth capacitor;

[0156] The switch output terminal SW of the nano-watt energy harvesting chip U3 is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 through a first inductor L22, the built-in power supply rail generator connection terminal CAP of the nano-watt energy harvesting chip U3 is connected to the first input voltage terminal VIN of the nano-watt energy harvesting chip U3 through a fifteenth capacitor C62, and the first input voltage terminal VIN of the nano-watt energy harvesting chip U3 is respectively grounded through a third capacitor and a fourth capacitor.

[0157] As a preferred embodiment, the voltage stabilization module includes a low dropout linear regulator U11;

[0158] The input end VIN of the low dropout linear regulator is respectively connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3 and is grounded through a sixteenth capacitor C65;

[0159] The ground terminal VSS of the low-dropout linear regulator is grounded. The enable terminal EN of the low-dropout linear regulator is connected to the input terminal of the logic conversion module. The output terminal VOUT of the low-dropout linear regulator outputs power supply and is grounded.

[0160] As a preferred embodiment, the logic conversion module includes a logic gate chip;

[0161] The first input terminal A of the logic gate chip is connected to the power good terminal PGOOD of the nano-watt energy harvesting chip U3. The second input terminal B of the logic gate chip is connected to the temperature conversion and forwarding module through the first resistor R27. The ground terminal GND of the logic gate chip is grounded;

[0162] The output terminal Y of the logic gate chip is grounded through the second resistor R22. The output terminal Y of the logic gate chip is connected to the enable terminal EN of the low-dropout linear regulator;

[0163] The power input terminal VCC of the logic gate chip is grounded through the seventeenth capacitor C68. The power input terminal VCC of the logic gate chip is connected to the output voltage terminal VOUT of the nano-watt energy harvesting chip U3.

[0164] In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent the situation where A exists alone, A and B exist simultaneously, and B exists alone. Where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the front and rear associated objects. "At least one of the following" and its similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple.

[0165] Those of ordinary skill in the art can realize that the units and algorithm steps described in the embodiments disclosed herein can be implemented by a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0166] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be repeated here.

[0167] In several embodiments provided by the present application, if any function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs.

[0168] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A wireless temperature measurement system using an induction electrode sheet as an antenna, characterized in that: It includes temperature conversion and forwarding module, temperature acquisition module, energy collection and signal transmission module, logic conversion module and voltage stabilization module; The output end of the energy collection and signal transmission module and the output end of the temperature conversion and forwarding module are connected to the input end of the logic conversion module, the output end of the logic conversion module and the output end of the energy collection and signal transmission module are connected to the input end of the voltage stabilizing module, and the output end of the voltage stabilizing module is connected to the input end of the temperature conversion and forwarding module; The output end of the temperature acquisition module is connected to the input end of the temperature conversion and forwarding module, and the output end of the temperature conversion and forwarding module is connected to the input end of the energy collection and signal transmission module; The temperature acquisition module outputs an electrical signal to the temperature conversion and forwarding module according to the measured temperature, and the temperature conversion and forwarding module is used to convert the electrical signal into a temperature measurement result and forward it to the energy collection and signal transmission module; The energy collection and signal transmission module is used for supplying power and transmitting the temperature measurement result to the receiving device through the electrodes of the energy collection and signal transmission module; The logic conversion module is used to control whether the voltage stabilization module outputs a stable power supply.

2. The wireless temperature measurement system using the sensing electrode sheet as the antenna according to claim 1 is characterized in that: The energy collection and signal transmission module includes a nanowatt-level energy collection chip, an input capacitor module, and an output energy acquisition capacitor module; The input capacitor module includes a third capacitor and a fourth capacitor; The output energy acquisition capacitor module includes a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor and a fourteenth capacitor; The input end of the first piezoelectric element of the nanowatt-level energy collection chip is connected to the first electrode, the input end of the second piezoelectric element of the nanowatt-level energy collection chip is connected to the second electrode, and the power good end of the nanowatt-level energy collection chip is connected to the input end of the logic conversion module; The first output voltage selection terminal and the second output voltage selection terminal of the nanowatt energy collection chip are grounded through the first capacitor, the second input voltage terminal of the nanowatt energy collection chip is grounded through the first capacitor, the output voltage terminal of the nanowatt energy collection chip is respectively connected to the input terminal of the voltage stabilization module and the input terminal of the logic conversion module, and is respectively grounded through the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor, the ninth capacitor, the tenth capacitor, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor and the fourteenth capacitor; The switch output end of the nanowatt energy collection chip is connected to the output voltage end of the nanowatt energy collection chip through a first inductor, the built-in power rail generator connection end of the nanowatt energy collection chip is connected to the first input voltage end of the nanowatt energy collection chip through a fifteenth capacitor, and the first input voltage end of the nanowatt energy collection chip is grounded through a third capacitor and a fourth capacitor respectively.

3. The wireless temperature measurement system using the sensing electrode sheet as the antenna according to claim 2 is characterized in that: The voltage stabilization module includes a low voltage drop linear regulator; The input ends of the low voltage difference linear regulator are respectively connected to the output voltage end of the nanowatt energy harvesting chip, and are grounded through a sixteenth capacitor; The ground terminal of the low voltage difference linear regulator is grounded, the enable terminal of the low voltage difference linear regulator is connected to the input terminal of the logic conversion module, and the output terminal of the low voltage difference linear regulator outputs power and is grounded.

4. The wireless temperature measurement system using the sensing electrode sheet as the antenna according to claim 3 is characterized in that: The logic conversion module includes a logic gate chip; The first input end of the logic gate chip is connected to the power good end of the nanowatt energy collection chip, the second input end of the logic gate chip is connected to the temperature conversion and forwarding module through the first resistor, and the ground end of the logic gate chip is grounded; The output end of the logic gate chip is grounded through a second resistor, and the output end of the logic gate chip is connected to an enable end of a low voltage difference linear regulator; The power input terminal of the logic gate chip is grounded through the seventeenth capacitor, and the power input terminal of the logic gate chip is connected to the output voltage terminal of the nanowatt-level energy collection chip.

5. The wireless temperature measurement system using the sensing electrode sheet as the antenna according to claim 4 is characterized in that: The temperature acquisition module includes a negative temperature coefficient thermistor; One end of the negative temperature coefficient thermistor is grounded, and the other end is connected to one end of the third resistor and one end of the fourth resistor respectively; The other end of the third resistor and the other end of the fourth resistor are connected to the temperature conversion and forwarding module.

6. The wireless temperature measurement system using the sensing electrode sheet as the antenna according to claim 5 is characterized in that: The temperature conversion and forwarding module includes a wireless transceiver SOC chip; The first ADC channel end of the wireless transceiver SOC chip is connected to the other end of the fourth resistor; The second ADC channel end and the common input and output end of the wireless transceiver SOC chip are connected to the other end of the third resistor; The second input terminal of the logic gate chip is connected to the universal input and output terminal of the wireless transceiver SOC chip through the first resistor; The first internal digital part power supply terminal of the wireless transceiver SOC chip is grounded through an eighteenth capacitor and connected to a power supply; The internal real-time clock power supply terminal of the wireless transceiver SOC chip is grounded through a nineteenth capacitor and connected to a power supply; The internal analog part power supply end of the wireless transceiver SOC chip is grounded through a twentieth capacitor and connected to a power supply; The second internal digital part power supply terminal of the wireless transceiver SOC chip is grounded through a twenty-first capacitor and connected to a power source; The feedback end of the internal switch power supply of the wireless transceiver SOC chip is grounded through a twenty-second capacitor, and is connected to the switch end of the internal switch power supply of the wireless transceiver SOC chip through a second inductor; The power supply end of the internal switch power supply of the wireless transceiver SOC chip is grounded and connected to the power supply through a twenty-third capacitor, and the twenty-fourth capacitor is connected in parallel to both ends of the twenty-third capacitor; The ground terminal of the internal switch power supply of the wireless transceiver SOC chip and the heat dissipation terminal of the wireless transceiver SOC chip are grounded; The power supply end of the first internal radio frequency part of the wireless transceiver SOC chip is grounded through the twenty-fifth capacitor; The power supply end of the second internal RF part of the wireless transceiver SOC chip is respectively connected to one end of the twenty-sixth capacitor and one end of the twenty-seventh capacitor, and is connected to a power supply, and the other end of the twenty-sixth capacitor and the other end of the twenty-seventh capacitor are grounded; The power supply end of the internal RF amplifier of the wireless transceiver SOC chip is grounded through a twenty-eighth capacitor, and is connected to the power supply end of the first internal RF part of the wireless transceiver SOC chip and the feedback end of the internal switching power supply of the wireless transceiver SOC chip; The input end of the external high-speed crystal oscillator of the wireless transceiver SOC chip is connected to the frequency input end of the four-pin passive crystal oscillator, the output end of the external high-speed crystal oscillator of the wireless transceiver SOC chip is connected to the frequency output end of the four-pin passive crystal oscillator, and the first grounding end and the second grounding end of the four-pin passive crystal oscillator are grounded; The upgrade configuration end of the wireless transceiver SOC chip is grounded through a fifth resistor, the upgrade configuration end of the wireless transceiver SOC chip is used to receive an upgrade signal, and the reset end of the wireless transceiver SOC chip is grounded through a twenty-ninth capacitor; The output end of the internal RF amplifier power supply of the wireless transceiver SOC chip is respectively grounded through the 30th capacitor and the 31st capacitor, and is connected to one end of the fourth inductor through the third inductor. The RF signal output end of the wireless transceiver SOC chip is connected to one end of the fourth inductor, the other end of the fourth inductor is respectively connected to one end of the 32nd capacitor, and is grounded through the 33rd capacitor. The 34th capacitor is connected in parallel at both ends of the fourth inductor, the other end of the 32nd capacitor is respectively connected to one end of the 36th capacitor through the fifth inductor, and is respectively grounded through the 35th capacitor and the 6th inductor, the other end of the 36th capacitor is respectively connected to the first electrode, and is connected to the second electrode through the seventh inductor.

7. A wireless temperature measurement method using an induction electrode sheet as an antenna, characterized in that: It includes temperature conversion and forwarding module, temperature acquisition module, energy collection and signal transmission module, logic conversion module and voltage stabilization module; The output end of the energy collection and signal transmission module and the output end of the temperature conversion and forwarding module are connected to the input end of the logic conversion module, the output end of the logic conversion module and the output end of the energy collection and signal transmission module are connected to the input end of the voltage stabilizing module, and the output end of the voltage stabilizing module is connected to the input end of the temperature conversion and forwarding module; The output end of the temperature acquisition module is connected to the input end of the temperature conversion and forwarding module, and the output end of the temperature conversion and forwarding module is connected to the input end of the energy collection and signal transmission module; The temperature acquisition module outputs an electrical signal to the temperature conversion and forwarding module according to the measured temperature, and the temperature conversion and forwarding module is used to convert the electrical signal into a temperature measurement result and forward it to the energy collection and signal transmission module; The energy collection and signal transmission module is used for supplying power and transmitting the temperature measurement result to the receiving device through the electrodes of the energy collection and signal transmission module; The logic conversion module is used to control whether the voltage stabilization module outputs a stable power supply.

8. The wireless temperature measurement method using the sensing electrode sheet as the antenna according to claim 7 is characterized in that: The energy collection and signal transmission module includes a nanowatt-level energy collection chip, an input capacitor module, and an output energy acquisition capacitor module; The input capacitor module includes a third capacitor and a fourth capacitor; The output energy acquisition capacitor module includes a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor and a fourteenth capacitor; The input end of the first piezoelectric element of the nanowatt-level energy collection chip is connected to the first electrode, the input end of the second piezoelectric element of the nanowatt-level energy collection chip is connected to the second electrode, and the power good end of the nanowatt-level energy collection chip is connected to the input end of the logic conversion module; The first output voltage selection terminal and the second output voltage selection terminal of the nanowatt energy collection chip are grounded through the first capacitor, the second input voltage terminal of the nanowatt energy collection chip is grounded through the first capacitor, the output voltage terminal of the nanowatt energy collection chip is respectively connected to the input terminal of the voltage stabilization module and the input terminal of the logic conversion module, and is respectively grounded through the fifth capacitor, the sixth capacitor, the seventh capacitor, the eighth capacitor, the ninth capacitor, the tenth capacitor, the eleventh capacitor, the twelfth capacitor, the thirteenth capacitor and the fourteenth capacitor; The switch output end of the nanowatt energy collection chip is connected to the output voltage end of the nanowatt energy collection chip through a first inductor, the built-in power rail generator connection end of the nanowatt energy collection chip is connected to the first input voltage end of the nanowatt energy collection chip through a fifteenth capacitor, and the first input voltage end of the nanowatt energy collection chip is grounded through a third capacitor and a fourth capacitor respectively.

9. The wireless temperature measurement method using the sensing electrode sheet as the antenna according to claim 8, characterized in that: The voltage stabilization module includes a low voltage drop linear regulator; The input ends of the low voltage difference linear regulator are respectively connected to the output voltage end of the nanowatt energy harvesting chip, and are grounded through a sixteenth capacitor; The ground terminal of the low voltage difference linear regulator is grounded, the enable terminal of the low voltage difference linear regulator is connected to the input terminal of the logic conversion module, and the output terminal of the low voltage difference linear regulator outputs power and is grounded.

10. The wireless temperature measurement method using the sensing electrode sheet as the antenna according to claim 9, characterized in that: The logic conversion module includes a logic gate chip; The first input end of the logic gate chip is connected to the power good end of the nanowatt energy collection chip, the second input end of the logic gate chip is connected to the temperature conversion and forwarding module through the first resistor, and the ground end of the logic gate chip is grounded; The output end of the logic gate chip is grounded through a second resistor, and the output end of the logic gate chip is connected to an enable end of a low voltage difference linear regulator; The power input terminal of the logic gate chip is grounded through the seventeenth capacitor, and the power input terminal of the logic gate chip is connected to the output voltage terminal of the nanowatt-level energy collection chip.

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