CN204808384U - A portable low -power consumption label for real -time positioning system - Google Patents

A portable low -power consumption label for real -time positioning system Download PDF

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Publication number
CN204808384U
CN204808384U CN201520540606.4U CN201520540606U CN204808384U CN 204808384 U CN204808384 U CN 204808384U CN 201520540606 U CN201520540606 U CN 201520540606U CN 204808384 U CN204808384 U CN 204808384U
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China
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circuit
radio
inductance
radio frequency
chip
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Expired - Fee Related
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CN201520540606.4U
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Chinese (zh)
Inventor
肖金超
蒋健波
资双飞
邓龙辉
刘继海
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Shenyang Institute of Automation of CAS
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Shenyang Institute of Automation of CAS
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Priority to CN201520540606.4U priority Critical patent/CN204808384U/en
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Abstract

The utility model discloses a portable low -power consumption label for real -time positioning system, this label include power management circuit, data processing control circuit, radio frequency network matching circuit, low noise power amplifier circuit, a radio frequency transceiving passageway converting circuit, the 2nd radio frequency transceiving passageway converting circuit and bandwidth -limited circuit. Power management circuit is supplied power for whole tag system. Data processing control circuit is used for realizing the processing of locating information, radio frequency network matching circuit is used for realizing that the locating information is mutual, low noise power amplifier circuit is used for realizing radiofrequency signal's power amplification, first, the 2nd radio frequency transceiving passageway converting circuit is used for realizing the conversion of radio frequency emission, received signal passageway, the filtering that bandwidth -limited circuit is used for realizing radiofrequency signal is handled. The utility model discloses low power dissipation, size are little, and be very light, has wearable nature, makes things convenient for the location personnel to carry, satisfies the location demand of many occasions.

Description

A kind of portable low power-consumption label for real-time positioning system
Technical field
The utility model relates to the technical field of portable location, particularly a kind of portable low power-consumption label for real-time positioning system.
Background technology
Current wireless sense network is widely applied in industry and daily life, and when it is applied to the monitoring of sensing network, the detection of its location information is most important.The node location of the position that event occurs or obtaining information is the important information comprised in sensing network node monitoring information.
It is more that the fast development of Internet of Things makes people obtain the demand of precise position information, such as, in the occasions such as mine, parking lot, library, warehouse, usually needs the positional information determining personnel or article; But the environment in these application scenarios is generally subject to many condition restrictions such as space, temperature, causes the location technologies such as GPS, RSSI, ultrasound wave, WiFi, bluetooth accurately to locate, can not meet people to pinpoint demand.
Current indoor positioning generally adopts UWB technology to realize hi-Fix, has the shortcoming that cost is high.Simultaneously owing to adopting the positioning label volume of this technology large, be therefore not easy to carry, application scenario is restricted,
Utility model content
The purpose of this utility model is that the shortcoming overcoming prior art is with not enough, and provide a kind of portable low power-consumption label for real-time positioning system, this label can adopt USB to charge, and size is little, longevity of service, low in energy consumption.
The purpose of this utility model is realized by following technical scheme: a kind of portable low power-consumption label for real-time positioning system, comprising:
Antenna, is connected with bandwidth-limited circuit, for the communication between label and base station;
Bandwidth-limited circuit, is connected with the first radio-frequency receiving-transmitting channel conversion circuit and antenna, for carrying out the filtering of radiofrequency signal;
First radio-frequency receiving-transmitting channel conversion circuit, it is also connected with the second radio-frequency receiving-transmitting channel conversion circuit and low noise power amplification circuit, for filtered for bandwidth-limited circuit signal is sent to the second radio-frequency receiving-transmitting channel conversion circuit, simultaneously by the signal transmission after the process of low noise power amplification circuit to bandwidth-limited circuit;
Low noise power amplification circuit, is connected with the first radio-frequency receiving-transmitting channel conversion circuit, the second radio-frequency receiving-transmitting channel conversion circuit, carries out the power amplification of radiofrequency signal for the signal after radio frequency net mate processing of circuit;
Second radio-frequency receiving-transmitting channel conversion circuit, with radio frequency network match circuit, low noise power amplification circuit and the first radio-frequency receiving-transmitting channel conversion circuit, for by first radio-frequency receiving-transmitting channel conversion circuit transmit Signal transmissions to radio frequency network match circuit, simultaneously by the Signal transmissions after the process of radio frequency network match circuit to low noise power amplification circuit;
Radio frequency network match circuit, is connected with data processing and control circuit, the second radio-frequency receiving-transmitting channel conversion circuit, and the terminal network for radiofrequency signal mates;
Data processing and control circuit, is connected with radio frequency network match circuit, for positioning the process of information;
Electric power management circuit, for powering for whole label.
Preferably, described bandwidth-limited circuit comprises the first electric capacity C16, the second electric capacity C20, the 3rd electric capacity C21 and the first inductance L 7, second inductance L 8, wherein the first electric capacity, the second electric capacity, the 3rd electric capacity form Π type filter network, the first electric capacity, the 3rd capacity earth; Described first inductance is connected with Π type filter network, forms a low-pass filter; Described second inductance is in parallel with Π type filter network, forms a Hi-pass filter; Described low-pass filter is connected with Hi-pass filter, namely constitutes the bandpass filter of wide passband.
Preferably, described low noise power amplification circuit comprises μ PG2250TN chip, a LC low-pass filter circuit, a described LC low-pass filter circuit comprises the 3rd inductance L 9 and the 4th electric capacity C51, and described μ PG2250TN chip is connected with the 3rd inductance, with the 4th Capacitance parallel connection.
Preferably, described first radio-frequency receiving-transmitting channel conversion circuit and the second radio-frequency receiving-transmitting channel conversion circuit are the on-off circuit based on μ PG2214TK chip or μ PG2215 chip, one the 2nd LC phase matching circuit is also provided with between μ PG2250TN chip and described second radio-frequency receiving-transmitting channel conversion circuit breaker in middle circuit in low noise power amplification circuit, described 2nd LC phase matching circuit comprises the 4th inductance L 7 and the 5th electric capacity C52, described μ PG2250TN chip is connected with the 4th inductance, with the 5th Capacitance parallel connection.
Preferably, described radio frequency network match circuit comprises NA5TR1 radio frequency chip, impedance matching network, the first Ba Lun (Balun), the second Ba Lun; Described impedance matching network comprises the 5th inductance L 4, the 6th inductance L 5, the 7th inductance L 6, the 6th electric capacity C18, the 7th electric capacity C21, described 6th inductance two ends are in parallel with the differential input end of NA5TR1 radio frequency chip, differential input end wherein one end is connected with an output terminal of the first Ba Lun U7 with after the 5th inductance, the 6th capacitances in series, and the differential input end other end is connected with another output terminal of the first Ba Lun U7 with after the 7th inductance, the 7th capacitances in series; One the 8th inductance L 3 two ends are in parallel with the difference output end of NA5TR1 radio frequency chip, and the two ends of difference output end are connected with two output terminals of the second Ba Lun U10 respectively.Impedance is realized from 50 Europe to the transformation in 200 Europe by Balun.
Preferably, described data processing and control circuit adopts STM8L151G6U6 single-chip microcomputer, and described STM8L151G6U6 single-chip microcomputer is communicated with the NA5TR1 radio frequency chip in radio frequency network match circuit by spi bus; Described STM8L151G6U6 single-chip microcomputer is measured in real time by the voltage of built-in A/D ALT-CH alternate channel to lithium battery.
Preferably, described electric power management circuit comprises USB feed circuit, lithium battery, lithium battery charging management circuit, power supply selection circuit, 2.5V/1.8V linear voltage-stabilizing circuit, the input end of described USB feed circuit is connected with external power source by USB port, and the output terminal of USB feed circuit is connected with the input end of lithium battery charging management circuit, the input end of power supply selection circuit respectively; The input end of described lithium battery is connected with the output terminal of lithium battery charging management circuit, and the output terminal of lithium battery is connected with the input end of power supply selection circuit; The output terminal of described power supply selection circuit is connected with the input end of 2.5V/1.8V linear voltage-stabilizing circuit; The output terminal of described 2.5V/1.8V linear voltage-stabilizing circuit is connected with other circuit in label, for powering for each circuit.Therefore electric power management circuit is except powering for the circuit in label, can also carry out Charge Management to lithium battery and control the selection of power supply.
Further, described lithium battery charging management circuit comprises L6924U chip, for carrying out Charge Management to lithium battery; Described power supply selection circuit comprises AO3401 field effect transistor, is powered or lithium battery power supply by USB for selecting; Described 2.5V/1.8V linear voltage-stabilizing circuit comprises 2.5V linear voltage-stabilizing circuit and 1.8V linear voltage-stabilizing circuit, described 2.5V linear voltage-stabilizing circuit comprises ADP150AUJZ-2.5 chip, for providing stable 2.5V direct current supply for label, described 1.8V linear voltage-stabilizing circuit comprises ADP150AUJZ-1.8 chip, for providing stable 1.8V direct current supply for low noise power amplification circuit.
Compared with prior art, tool has the following advantages and beneficial effect the utility model:
1, the utility model tag power consumption is low, size is little, very light, has wearable property, facilitates locating personnel to carry, meet the location requirement of many occasions.
2, be provided with two radio-frequency receiving-transmitting channel conversion circuits in the utility model, according to the difference that signal sends or receives, select different processing of circuit, power consumption can be reduced further, reduce size.
3, in the utility model, radio frequency network match circuit to be combined mode by NA5TR1 radio frequency chip, impedance matching network, Ba Lun, by impedance from 50 Europe to the transformation in 200 Europe, can effectively reduce radio frequency spuious, improve radiofrequency signal stability and intensity.
4, the electric power management circuit in the utility model can adopt USB or lithium battery power supply, can automatically select external USB to power by power supply selection circuit, or lithium battery power supply.And mate with the power supply timing of label power source by label positioning information being launched sequential, carry out control system and power, reduce energy loss.
5, in the utility model, low-consumption power amplifying circuit improves emissive power, and tag sensitivity is high, improves positioning precision.
Accompanying drawing explanation
Fig. 1 is the frame diagram of the present embodiment;
Fig. 2 (a) is the circuit diagram of the present embodiment electric power management circuit;
Fig. 2 (b) is the circuit diagram of 2.5V/1.8V linear voltage-stabilizing circuit;
Fig. 3 (a) is the circuit diagram of the present embodiment data processing and control circuit;
Fig. 3 (b) is the schematic diagram of the method based on time of arrival poor (TDOA);
Fig. 3 (c) launches the power supply timing schematic diagram of sequential and label power source for label positioning information;
Fig. 4 is the circuit diagram of the present embodiment radio frequency network match circuit;
Fig. 5 is the circuit diagram of the present embodiment low noise power amplification circuit and the second radio-frequency receiving-transmitting channel conversion circuit;
Fig. 6 is the circuit diagram of the present embodiment bandwidth-limited circuit.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment 1
As shown in Figure 1, a kind of portable low power-consumption label for real-time positioning system of the present embodiment, comprise antenna, electric power management circuit, data processing and control circuit, radio frequency network match circuit, the first radio-frequency receiving-transmitting channel conversion circuit, the second radio-frequency receiving-transmitting channel conversion circuit, low noise power amplification circuit and bandwidth-limited circuit, described radio frequency network match circuit is connected with data processing and control circuit, the second radio-frequency receiving-transmitting channel conversion circuit; Described low noise power amplification circuit is connected with the first radio-frequency receiving-transmitting channel conversion circuit, the second radio-frequency receiving-transmitting channel conversion circuit respectively, and described first radio-frequency receiving-transmitting channel conversion circuit is connected with bandwidth-limited circuit; Bandwidth-limited circuit is connected with antenna.The whole tag system of described electric power management circuit provides the direct current supply of 2.5V and 1.8V.
As shown in Fig. 2 (a), in the present embodiment, described electric power management circuit provides the voltage of 2.5V and 1.8V for whole tag system.According to function, described electric power management circuit can be divided into USB feed circuit, lithium battery, lithium battery charging management circuit, power supply selection circuit, 2.5V/1.8V linear voltage-stabilizing circuit, the annexation of foregoing circuit is see Fig. 1, wherein the input end of USB feed circuit is connected with external power source by USB port, and the output terminal of USB feed circuit is connected with the input end of lithium battery charging management circuit, the input end of power supply selection circuit respectively; The input end of described lithium battery is connected with the output terminal of lithium battery charging management circuit, and the output terminal of lithium battery is connected with the input end of power supply selection circuit; The output terminal of described power supply selection circuit is connected with the input end of 2.5V/1.8V linear voltage-stabilizing circuit; The output terminal of described 2.5V/1.8V linear voltage-stabilizing circuit is connected with other circuit in label, for powering for each circuit.
In the present embodiment, electric power management circuit can be powered for the circuit in label, can also carry out Charge Management to lithium battery and control the selection of power supply.Wherein lithium battery charging management circuit comprises L6924U chip; for single lithium battery charging provides Management and Protection; in Fig. 2 (a); by arranging resistance R1, R2 resistance ratio, charge protection temperature threshold is set; charge protection can be carried out higher than the temperature threshold arranged; prevent lithium battery from damaging, the size of charging current and charging end trickle can be set by the resistance of resistance R6, R7.The charging of light emitting diode D2, D1 difference pilot cell and charging complete state.Described power supply source selection circuit comprises AO3401 field effect transistor; select to be that USB powers or lithium battery power supply by the switch of field effect transistor Q1; the source electrode of Q1 is pulled down to zero potential and guarantees that Q1 switch motion is correct by resistance R5, and diode D3 protects Q1 not to be reversed electric current or excessive pressure damages.
In the present embodiment, the circuit diagram of 2.5V/1.8V linear voltage-stabilizing circuit is see Fig. 2 (b), it comprises 2.5V linear voltage-stabilizing circuit and 1.8V linear voltage-stabilizing circuit, 2.5V linear voltage-stabilizing circuit mainly comprises ADP150AUJZ-2.5U2 chip, for label provides stable 2.5V direct current supply, 1.8V linear voltage-stabilizing circuit mainly comprises ADP150AUJZ-1.8U4 chip, for low noise power amplification circuit provides stable 1.8V direct current supply.The conversion of power supply can be controlled by data processing and control circuit.
As shown in Fig. 3 (a), the core of described data processing and control circuit is STM8L151G6U6 single-chip microcomputer, this single-chip microcomputer carries out two-way communication by the NA5TR1 chip in spi bus and radio frequency network match circuit, for receiving the position of locating base station, the call duration time information etc. between label and base station.Described STM8L151G6U6 single-chip microcomputer is also measured in real time by the voltage of built-in A/D ALT-CH alternate channel to lithium battery, to monitor the electricity of lithium battery at any time, if electricity is not enough, can externally remind.
As shown in Figure 4, described radio frequency network match circuit is primarily of NA5TR1 radio frequency chip, impedance matching network, first Ba Lun, second Ba Lun is formed, impedance matching network between NA5TR1 radio frequency chip and the first Ba Lun comprises the 5th inductance L 4, 6th inductance L 5, 7th inductance L 6, 6th electric capacity C18, 7th electric capacity C21, described 6th inductance two ends are in parallel with the differential input end of NA5TR1 radio frequency chip, differential input end is one end and the 5th inductance wherein, be connected with an output terminal of the first Ba Lun U7 after 6th capacitances in series, the differential input end other end and the 7th inductance, be connected with another output terminal of the first Ba Lun U7 after 7th capacitances in series.It is in parallel with the difference output end of NA5TR1 radio frequency chip that impedance matching network between NA5TR1 radio frequency chip and the second Ba Lun comprises the 8th inductance L the 3, eight inductance L 3 two ends, and the two ends of difference output end are connected with two output terminals of the second Ba Lun U10 respectively.By the radio frequency network match circuit described in the present embodiment, the coupling of radiofrequency signal phase place and impedance can be realized, realize impedance from 50 Europe to the transformation in 200 Europe, reduce radio frequency spuious simultaneously, improve radiofrequency signal stability and intensity.
In the present embodiment, the first radio-frequency receiving-transmitting channel conversion circuit and the second radio-frequency receiving-transmitting channel conversion circuit are the on-off circuit based on μ PG2214TK chip or μ PG2215 chip, low noise power amplification circuit is formed primarily of power amplifier μ PG2250TN, a LC low-pass filter circuit, and particular circuit configurations is see Fig. 5.One LC low-pass filter circuit is used for the high frequency interference of filter out power, and specifically comprise the 3rd inductance L 9 and the 4th electric capacity C51, wherein μ PG2250TN chip is connected with the 3rd inductance L 9, in parallel with the 4th electric capacity C51.Particular circuit configurations
One the 2nd LC phase matching circuit is also provided with between μ PG2250TN chip and described second radio-frequency receiving-transmitting channel conversion circuit breaker in middle circuit in low noise power amplification circuit, described 2nd LC phase matching circuit comprises the 4th inductance L 7 and the 5th electric capacity C52, described μ PG2250TN chip is connected with the 4th inductance, with the 5th Capacitance parallel connection.
As shown in Figure 6, in the present embodiment, bandwidth-limited circuit comprises the first electric capacity C16, the second electric capacity C20, the 3rd electric capacity C21 and the first inductance L 7, second inductance L 8, wherein the first electric capacity C16, the second electric capacity C20, the 3rd electric capacity C21 form Π type filter network, the first electric capacity C16, the 3rd electric capacity C21 ground connection; Described first inductance L 7 is connected with Π type filter network, forms a low-pass filter; Described second inductance L 8 is in parallel with Π type filter network, forms a Hi-pass filter; Described low-pass filter is connected with Hi-pass filter, namely constitutes the bandpass filter of wide passband.
In the present embodiment, the localization method of above-mentioned Low Power Consumption Tags, comprises step:
(1) data processing and control circuit is launched sequential according to tag location signal and is outwards launched detection signal, after each base station runs into this detection signal, corresponding transmitting one comprises the feedback signal of the location coordinate information of base station itself, after antenna in label receives this feedback signal, first carry out filtering through bandwidth-limited circuit, then through the first radio-frequency receiving-transmitting channel conversion circuit, the second radio-frequency receiving-transmitting channel conversion circuit laggard enter radio frequency net mate circuit;
Described radio frequency network match circuit carries out the coupling of phase place and impedance to feedback signal after, send signal to data processing and control circuit, data processing and control circuit calculates the mistiming between detection signal and base station feedback signal after receiving above-mentioned feedback signal, and this time difference information is sent to radio frequency network match circuit;
(2) described radio frequency network match circuit carries out the coupling of phase place and impedance to described time difference information, then after the second radio-frequency receiving-transmitting channel conversion circuit, low noise power amplification circuit is entered, described low noise power amplification circuit carries out power amplification to described time difference information, then after the first radio-frequency receiving-transmitting channel conversion circuit, enter bandwidth-limited circuit, after bandwidth-limited circuit filtering, by antenna, described time difference information is sent to base station; Base station, according to this time difference information, calculates the place, position of label, completes location based on existing time of arrival poor (TDOA) method.
Based on time of arrival poor (TDOA) square ratio juris see Fig. 3 (b), suppose there are 4 base stations, be respectively R1, R2, R3, R4, current label position is T, so label is respectively ToA1, ToA2, ToA3, ToA4 to difference time of arrival of each base station, according to the principle intersected in conjunction with hyperboloid, namely calculate the intersection point of ToA1-ToA2, ToA2-ToA3 two curve intersections, finally determine the position of label.
Data processing and control circuit being controllable label power source power-on time and positioning time gap, concrete Control timing sequence logic is see Fig. 3 (c), the sequential that sequential carrys out abstract factory power management is launched by label positioning information, open tag-powered in the time slot needing transmitting label positioning information, and label powered-down when being in dormancy time slot, make whole label be in super low-power consumption state, greatly save tag battery energy.
Above-described embodiment is the utility model preferably embodiment; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.

Claims (8)

1., for a portable low power-consumption label for real-time positioning system, it is characterized in that, comprising:
Antenna, is connected with bandwidth-limited circuit, for the communication between label and base station;
Bandwidth-limited circuit, is connected with the first radio-frequency receiving-transmitting channel conversion circuit and antenna, for carrying out the filtering of radiofrequency signal;
First radio-frequency receiving-transmitting channel conversion circuit, it is also connected with the second radio-frequency receiving-transmitting channel conversion circuit and low noise power amplification circuit, for filtered for bandwidth-limited circuit signal is sent to the second radio-frequency receiving-transmitting channel conversion circuit, simultaneously by the signal transmission after the process of low noise power amplification circuit to bandwidth-limited circuit;
Low noise power amplification circuit, is connected with the first radio-frequency receiving-transmitting channel conversion circuit, the second radio-frequency receiving-transmitting channel conversion circuit, carries out the power amplification of radiofrequency signal for the signal after radio frequency net mate processing of circuit;
Second radio-frequency receiving-transmitting channel conversion circuit, with radio frequency network match circuit, low noise power amplification circuit and the first radio-frequency receiving-transmitting channel conversion circuit, for by first radio-frequency receiving-transmitting channel conversion circuit transmit Signal transmissions to radio frequency network match circuit, simultaneously by the Signal transmissions after the process of radio frequency network match circuit to low noise power amplification circuit;
Radio frequency network match circuit, is connected with data processing and control circuit, the second radio-frequency receiving-transmitting channel conversion circuit, and the terminal network for radiofrequency signal mates;
Data processing and control circuit, is connected with radio frequency network match circuit, for positioning the process of information;
Electric power management circuit, for powering for whole label.
2. the portable low power-consumption label for real-time positioning system according to claim 1, it is characterized in that, described bandwidth-limited circuit comprises the first electric capacity, the second electric capacity, the 3rd electric capacity and the first inductance, the second inductance, wherein the first electric capacity, the second electric capacity, the 3rd electric capacity form Π type filter network, the first electric capacity, the 3rd capacity earth; Described first inductance is connected with Π type filter network, forms a low-pass filter; Described second inductance is in parallel with Π type filter network, forms a Hi-pass filter; Described low-pass filter is connected with Hi-pass filter, namely constitutes the bandpass filter of wide passband.
3. the portable low power-consumption label for real-time positioning system according to claim 1, it is characterized in that, described low noise power amplification circuit comprises μ PG2250TN chip, a LC low-pass filter circuit, a described LC low-pass filter circuit comprises the 3rd inductance and the 4th electric capacity, described μ PG2250TN chip is connected with the 3rd inductance, with the 4th Capacitance parallel connection.
4. the portable low power-consumption label for real-time positioning system according to claim 3, it is characterized in that, described first radio-frequency receiving-transmitting channel conversion circuit and the second radio-frequency receiving-transmitting channel conversion circuit are the on-off circuit based on μ PG2214TK chip or μ PG2215 chip, one the 2nd LC phase matching circuit is also provided with between μ PG2250TN chip and described second radio-frequency receiving-transmitting channel conversion circuit breaker in middle circuit in low noise power amplification circuit, described 2nd LC phase matching circuit comprises the 4th inductance and the 5th electric capacity, described μ PG2250TN chip is connected with the 4th inductance, with the 5th Capacitance parallel connection.
5. the portable low power-consumption label for real-time positioning system according to claim 1, is characterized in that, described radio frequency network match circuit comprises NA5TR1 radio frequency chip, impedance matching network, the first Ba Lun, the second Ba Lun; Described impedance matching network comprises the 5th inductance, the 6th inductance, the 7th inductance, the 6th electric capacity, the 7th electric capacity, described 6th inductance two ends are in parallel with the differential input end of NA5TR1 radio frequency chip, differential input end wherein one end is connected with an output terminal of the first Ba Lun with after the 5th inductance, the 6th capacitances in series, and the differential input end other end is connected with another output terminal of the first Ba Lun with after the 7th inductance, the 7th capacitances in series;
One the 8th inductance two ends are in parallel with the difference output end of NA5TR1 radio frequency chip, and the two ends of difference output end are connected with two output terminals of the second Ba Lun respectively.
6. the portable low power-consumption label for real-time positioning system according to claim 5, it is characterized in that, described data processing and control circuit adopts STM8L151G6U6 single-chip microcomputer, and described STM8L151G6U6 single-chip microcomputer is communicated with the NA5TR1 radio frequency chip in radio frequency network match circuit by spi bus; Described STM8L151G6U6 single-chip microcomputer is measured in real time by the voltage of built-in A/D ALT-CH alternate channel to the lithium battery in electric power management circuit.
7. the portable low power-consumption label for real-time positioning system according to claim 1, it is characterized in that, described electric power management circuit comprises USB feed circuit, lithium battery, lithium battery charging management circuit, power supply selection circuit, 2.5V/1.8V linear voltage-stabilizing circuit, the input end of described USB feed circuit is connected with external power source by USB port, and the output terminal of USB feed circuit is connected with the input end of lithium battery charging management circuit, the input end of power supply selection circuit respectively; The input end of described lithium battery is connected with the output terminal of lithium battery charging management circuit, and the output terminal of lithium battery is connected with the input end of power supply selection circuit; The output terminal of described power supply selection circuit is connected with the input end of 2.5V/1.8V linear voltage-stabilizing circuit; The output terminal of described 2.5V/1.8V linear voltage-stabilizing circuit is connected with other circuit in label, for powering for each circuit.
8. the portable low power-consumption label for real-time positioning system according to claim 7, it is characterized in that, described lithium battery charging management circuit comprises L6924U chip, for carrying out Charge Management to lithium battery; Described power supply selection circuit comprises AO3401 field effect transistor, is powered or lithium battery power supply by USB for selecting; Described 2.5V/1.8V linear voltage-stabilizing circuit comprises 2.5V linear voltage-stabilizing circuit and 1.8V linear voltage-stabilizing circuit, described 2.5V linear voltage-stabilizing circuit comprises ADP150AUJZ-2.5 chip, for providing stable 2.5V direct current supply for label, described 1.8V linear voltage-stabilizing circuit comprises ADP150AUJZ-1.8 chip, for providing stable 1.8V direct current supply for low noise power amplification circuit.
CN201520540606.4U 2015-07-22 2015-07-22 A portable low -power consumption label for real -time positioning system Expired - Fee Related CN204808384U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105574581A (en) * 2015-07-22 2016-05-11 广州中国科学院沈阳自动化研究所分所 Portable low-power-dissipation tag used for real-time positioning system and positioning method based on tag
CN111914976A (en) * 2020-07-29 2020-11-10 福州物联网开放实验室有限公司 Novel combined type UWB electronic tags
CN117318636A (en) * 2023-11-28 2023-12-29 成都嘉纳海威科技有限责任公司 High-integration dual-mode amplifier chip

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105574581A (en) * 2015-07-22 2016-05-11 广州中国科学院沈阳自动化研究所分所 Portable low-power-dissipation tag used for real-time positioning system and positioning method based on tag
CN111914976A (en) * 2020-07-29 2020-11-10 福州物联网开放实验室有限公司 Novel combined type UWB electronic tags
CN117318636A (en) * 2023-11-28 2023-12-29 成都嘉纳海威科技有限责任公司 High-integration dual-mode amplifier chip
CN117318636B (en) * 2023-11-28 2024-02-27 成都嘉纳海威科技有限责任公司 High-integration dual-mode amplifier chip

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