CN206740255U - A kind of ultra-low power consumption wireless passive temperature sensor - Google Patents
A kind of ultra-low power consumption wireless passive temperature sensor Download PDFInfo
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- CN206740255U CN206740255U CN201720556947.XU CN201720556947U CN206740255U CN 206740255 U CN206740255 U CN 206740255U CN 201720556947 U CN201720556947 U CN 201720556947U CN 206740255 U CN206740255 U CN 206740255U
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Abstract
A kind of ultra-low power consumption wireless passive temperature sensor, including communication antenna, take can antenna, power management module, temperature frequency modular converter, frequency data-converting block and backscatter modulator.The utility model use take can the mode of antenna provide electric energy for integrated circuit, without built-in power, solve the difficulty that the later stage can not change battery, greatly reduce manufacturing cost and later maintenance expense；The characteristics of backscatter modulator is based on radar backscattering principle, has zero-power modulation, and circuit structure is simple.
Description
Technical field
A kind of ultra-low power consumption wireless passive temperature sensor is the utility model is related to, belongs to electronic radio communication technology neck
Domain.
Background technology
Temperature is one and the closely related physical quantity of people's living environment, and in other research, production, scientific research, lives
The middle physical quantity for needing to measure and control, while be also most basic ambient parameter.The life of people and bad border temperature breath manner of breathing
Close, the science such as physics, chemistry, biology all be unable to do without temperature.As solar water heater, electric power, oil, agricultural greenhouse are frequently necessary to
Environment temperature is detected, and temperature is controlled according to the requirement of reality.For example, in many solar water heaters, need
Its water pump is controlled to operate by temperature detection；In agricultural greenhouse, judge whether suitable crops by temperature detection
Plantation and growth；Many electronic equipments have rated temperature unit, electronic product can be made to cause failure without suitable temperature.
Domestic and international most temperature is monitored using wired sensor in real time, but due to the wire bond of wired sensor
Structure is complicated, and installation cost is high and the cycle is grown, and later maintenance cost is also very high, and these all limit the extensive of such monitoring technology
Using.Existing wireless senser all uses wireless sensor network（Wireless Sensor Networks, WSN）Node
Technology, active mode is worked in, moreover, some occasions need WSN nodes being implanted into object under test, cause the later stage not change
Battery, therefore, temperature monitoring there is an urgent need to it is a kind of with long lifespan, cost it is low, can fast positioning feature wireless field monitoring
Mode.
With the development of science and technology, low cost passive wireless senser is designed to possibility.Saved compared to existing WSN
Point technology, the wireless transmission distance of passive sensor is short, and speed is low, and this just greatly limit its application.But it is based on thunder
Back-scattering modulation technique up to backscattered modulation principle has the simple spy such as low with power consumption of zero-power modulation, circuit structure
Point, the wireless transmission distance of passive sensor is added, improves transmission rate.Therefore, passive sensing label is especially suitable for structure
Build long-term, the real-time temperature test sytem of large-scale application.
The content of the invention
The purpose of this utility model is, in order to solve the problems, such as that existing temperature monitoring is present, propose a kind of super low-power consumption without
Line passive temperature sensor.
Realize that the technical solution of the utility model is as follows：A kind of ultra-low power consumption wireless passive temperature sensor.Including communication
Antenna, take energy antenna, temperature frequency modular converter, frequency data-converting block and backscatter modulator.
The output for taking energy antenna terminates the input of power management module；The output termination frequency of power management module
The input of data-converting block；The input of the output termination frequency number word modular converter of temperature frequency modular converter；Frequency
The output end of data-converting block connects the input of backscatter modulator；The output end of backscatter modulator connects letter day
Line.
The power management module, including take energy antenna, voltage doubling rectifing circuit and mu balanced circuit；Taking can antenna trapping space
In radio magnetic wave and be sent to voltage doubling rectifing circuit；Obtained ac signal is converted to direct current by voltage doubling rectifing circuit
Control source is then the DC voltage of other circuit with stable into voltage-stablizer.It is described to take in energy antenna trapping space
Electromagnetic wave is used to provide energy for power management module.
The frequency-numeral conversion, for the frequency signal temperature controlled received to be converted into corresponding numeral
Signal.
The communication antenna, for receiving wireless signal and sending backscatter modulation signal.
The temperature sensor is used to measure current temperature value and is converted to frequency values output.
The frequency numeral is changed for the temperature frequency received signal to be converted into data signal.
The backscatter modulator, the backscattered modulation for controller output signal；The backscattered modulation
Device is based on radar backscattered modulation principle, has the characteristics of zero-power modulation, circuit structure is simple and low in energy consumption.
Compared with prior art, the utility model has the advantage of：The utility model uses the mode for taking energy antenna to be whole
Body circuit provides electric energy, without built-in power, solves the difficulty that the later stage can not change battery, greatly reduce manufacturing cost and
Later maintenance expense；Backscatter modulator is based on radar backscattering principle, and there is zero-power to modulate, and circuit structure is simple
Feature.
Brief description of the drawings
Fig. 1 is theory diagram of the present utility model；
Fig. 2 is specific embodiment of the utility model structural representation.
Embodiment
Specific embodiment of the present utility model is as depicted in figs. 1 and 2.
A kind of ultra-low power consumption wireless passive temperature sensor of the present embodiment includes communication antenna, power management module, clock
Generator, counter, voltage controlled oscillator, GW50 temperature sensors and ASK backscatter modulators.The output of power management module
Terminate the input of counter, ASK backscatter modulators and GW50 temperature sensors；Clock generator and voltage controlled oscillator
Output end is connected with the input of counter；GW50 temperature sensors output end is connected with the input of voltage controlled oscillator；Count
Device output end is connected with the input of ASK backscatter modulators；The output end and communication antenna phase of ASK backscatter modulators
Even.
The power management module includes taking energy antenna, voltage doubling rectifing circuit and mu balanced circuit：Take the output end of energy antenna
Connect the input of voltage doubling rectifing circuit；The input of the output termination voltage-stablizer of voltage doubling rectifing circuit.
The power management module provides steady dc voltage for integrated circuit.Energy antenna is wherein taken to be used for capturing space
In radio magnetic wave and be sent to voltage doubling rectifing circuit；Obtained ac signal is converted to direct current by voltage doubling rectifing circuit
Control source is then the DC voltage of other circuit with stable into voltage-stablizer.
The voltage controlled oscillator is used for the electric signal that GW50 temperature sensors export being converted to frequency signal, and is sent
Enter calculator.
Backscatter modulator described in the ASK backscatter modulators is based on radar backscattered modulation principle, utilizes
The changes in amplitude of carrier wave transmits digital information, and its frequency and initial phase keep constant, have zero-power modulation, circuit knot
The features such as structure is simple and low in energy consumption, is particularly suitable for being operated in passive states.
Claims (4)
1. a kind of ultra-low power consumption wireless passive temperature sensor, it is characterised in that the temperature sensor includes communication antenna, taken
Can antenna, power management module, temperature-frequency modular converter, frequency-data-converting block and backscatter modulator；Take
The input of the output termination power management module of energy antenna；The output termination frequency number word modular converter of power management module
Input；The input of temperature frequency modular converter output termination frequency number word modular converter；Frequency data-converting block it is defeated
Go out to terminate the input of backscatter modulator；The output end of backscatter modulator connects communication antenna.
A kind of 2. ultra-low power consumption wireless passive temperature sensor according to claim 1, it is characterised in that
The power management module, including take energy antenna, voltage doubling rectifing circuit and mu balanced circuit；Take in energy antenna trapping space
Radio magnetic wave is simultaneously sent to voltage doubling rectifing circuit；Obtained ac signal is converted to DC voltage by voltage doubling rectifing circuit
It is input in voltage-stablizer, is then the DC voltage of other circuit with stable.
A kind of 3. ultra-low power consumption wireless passive temperature sensor according to claim 1, it is characterised in that
The frequency-numeral conversion, for the frequency signal temperature controlled received to be converted into corresponding data signal；
The communication antenna, for receiving wireless signal and sending backscatter modulation signal.
4. a kind of ultra-low power consumption wireless passive temperature sensor according to claim 1, it is characterised in that described reversely to dissipate
Modulator is penetrated, the backscattered modulation for controller output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720556947.XU CN206740255U (en) | 2017-05-19 | 2017-05-19 | A kind of ultra-low power consumption wireless passive temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720556947.XU CN206740255U (en) | 2017-05-19 | 2017-05-19 | A kind of ultra-low power consumption wireless passive temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206740255U true CN206740255U (en) | 2017-12-12 |
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| CN201720556947.XU Expired - Fee Related CN206740255U (en) | 2017-05-19 | 2017-05-19 | A kind of ultra-low power consumption wireless passive temperature sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014499A (en) * | 2017-05-19 | 2017-08-04 | 华东交通大学 | A kind of ultra-low power consumption wireless passive temperature sensor |
| CN109813437A (en) * | 2019-01-29 | 2019-05-28 | 武汉科瑞新电气自动化有限公司 | Passive and wireless infrared temperature measurement apparatus |
| CN112039744A (en) * | 2020-08-28 | 2020-12-04 | 电子科技大学 | Wireless bus communication method based on backscattering |
-
2017
- 2017-05-19 CN CN201720556947.XU patent/CN206740255U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014499A (en) * | 2017-05-19 | 2017-08-04 | 华东交通大学 | A kind of ultra-low power consumption wireless passive temperature sensor |
| CN109813437A (en) * | 2019-01-29 | 2019-05-28 | 武汉科瑞新电气自动化有限公司 | Passive and wireless infrared temperature measurement apparatus |
| CN112039744A (en) * | 2020-08-28 | 2020-12-04 | 电子科技大学 | Wireless bus communication method based on backscattering |
| CN112039744B (en) * | 2020-08-28 | 2021-10-01 | 电子科技大学 | Wireless bus communication method based on backscattering |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |