CN117411508A - Transceiver, electronic equipment and data monitoring system - Google Patents
Transceiver, electronic equipment and data monitoring system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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Abstract
The application discloses a transceiver, electronic equipment and a data monitoring system, wherein the transceiver comprises a microprocessor, a harmonic generation module, a signal transceiver module and a modem; the harmonic generation module is used for responding to the control of the microprocessor to output fundamental wave signals and harmonic wave signals; the signal receiving and transmitting module is used for amplifying the fundamental wave signals and the harmonic wave signals and then transmitting the amplified fundamental wave signals and the harmonic wave signals to the external sensor, and receiving reflected signals transmitted by the sensor in response to the harmonic wave signals; the modem is used for receiving the reflected signal and the harmonic signal which is coupled and output by the signal receiving and transmitting module, and demodulating the harmonic signal serving as a local oscillation signal and the reflected signal and outputting the demodulated signal to the microprocessor; the harmonic generation module is arranged in the transceiver to simultaneously generate the fundamental wave signal and the harmonic signal, so that the use of two frequency sources is avoided, and the cost is effectively reduced.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a transceiver, an electronic device, and a data monitoring system.
Background
With commercial deployment of 5G networks, the ecology of everything interconnection has a network foundation. The internet of things and sensor networks are attracting more attention as important components in the internet of everything, wherein passive sensor networks are favored by academia and industry due to the advantage of low power consumption. The NFC, zigbee, loRa, NB-IoT, RFID and other technologies widely used in the internet of things have the problem of low uplink rate, are widely applicable to application scenes which do not need high-rate uplink, and are difficult to meet the requirements for certain scenes with high uplink rate requirements.
In addition, for the sensor network, because of the huge number, if the sensor network is an active device, the cost is huge, and the passive sensor network is a hot spot technology for solving the cost and the power consumption. For the passive sensing network with high uplink throughput, the passive sensing network mainly relates to wireless power transmission, provides enough energy for passive sensors, and needs higher frequency for carrying back transmission data and higher-order modulation modes. At present, part of technologies use high-order modulation to match with a plurality of frequency sources to achieve the purpose of passive high-speed, but a plurality of frequency sources are needed, so that the complexity and the cost of a transmitting end are increased.
Disclosure of Invention
The application provides a transceiver, electronic equipment and data detection system, can effectively reduce the frequency source, reduce cost.
The application provides a transceiver, which comprises a microprocessor, a harmonic generation module, a signal transceiver module and a modem, wherein the harmonic generation module is connected with the microprocessor, the signal transceiver module is connected with the harmonic generation module, the harmonic generation module is used for responding to the control of the microprocessor to output fundamental wave signals and harmonic signals, and the modem is connected with the signal transceiver module and the microprocessor; the signal receiving and transmitting module is used for amplifying the fundamental wave signals and the harmonic wave signals and then transmitting the amplified fundamental wave signals and the harmonic wave signals to the external sensor, and receiving reflected signals transmitted by the sensor in response to the harmonic wave signals; the modem is used for receiving the reflected signal and the harmonic signal which is coupled and output by the signal receiving and transmitting module, and demodulating the harmonic signal serving as a local oscillation signal and the reflected signal and outputting the demodulated signal to the microprocessor.
In some embodiments, the transceiver comprises a crystal resonator, a phase frequency detector, a low-pass filter, a voltage controlled oscillator, a first frequency divider and a second frequency divider, the crystal resonator is connected with the phase frequency detector, the phase frequency detector is respectively connected with the first frequency divider and the low-pass filter, the low-pass filter is connected with the voltage controlled oscillator, the voltage controlled oscillator is respectively connected with the signal transceiver module, the first frequency divider and the second frequency divider, and the second frequency divider is also connected with the signal transceiver module.
In some embodiments, the transceiver comprises a signal transceiver module comprising a junction circuit, an amplifier, a first coupler, a circulator, and a first antenna connected in sequence, the circulator further connected to a modem, the first coupler further connected to the modem;
the combiner is used for receiving the fundamental wave signal and the harmonic wave signal and outputting the fundamental wave signal and the harmonic wave signal to the amplifier; the amplifier is used for amplifying the fundamental wave signals and the harmonic wave signals and outputting the amplified fundamental wave signals and the harmonic wave signals to the first coupler; the first coupler is used for coupling and outputting harmonic signals to the modem and outputting fundamental wave signals and harmonic signals to the first antenna through the circulator; the first antenna is used for transmitting fundamental wave signals and harmonic wave signals; the first antenna is also used for receiving the reflected signals; the circulator is used for outputting the reflected signal received by the first antenna to the modem.
In some embodiments, the transceiver further comprises a first radio frequency switch, a second radio frequency switch, and a third radio frequency switch; the first radio frequency switch is respectively connected with the second frequency divider, the second radio frequency switch and the combiner, the second radio frequency switch is also connected with the modem and the first coupler, and the third radio frequency switch is respectively connected with the modulation first coupler, the combiner and the amplifier.
In some embodiments, the transceiver, the first radio frequency switch, the second radio frequency switch, and the third radio frequency switch are all single pole double throw switches.
The application also provides electronic equipment, which comprises the transceiver.
The application also provides a data monitoring system, which comprises electronic equipment and a sensor, wherein the electronic equipment comprises the transceiver; the transceiver is used for transmitting fundamental wave signals and harmonic wave signals to the sensor, receiving reflected signals transmitted by the sensor in response to the harmonic wave signals, and acquiring monitoring information of the sensor according to the reflected signals.
In some embodiments, the data monitoring system comprises a sensor, a first antenna, a matching module, a first coupler, an IQ impedance modulator, a rectifying module and a controller, wherein the first antenna is connected with the matching module;
the second antenna is used for receiving the fundamental wave signal and the harmonic wave signal and transmitting the reflected signal reflected by the IQ impedance modulator to the transceiver; the matching module is used for outputting the fundamental wave signal to the second coupler and outputting the harmonic wave signal to the IQ impedance modulator; the second coupler is used for outputting the fundamental wave signal to the rectifying module; the rectification module is used for generating direct-current voltage according to the fundamental wave signals; the IQ impedance modulator is used for responding to the control of the controller to modulate the phase and the amplitude of the harmonic signal and then outputting a modulation signal, and the modulation signal is used as a reflection signal and sent to the transceiver through the second antenna.
In some embodiments, the data monitoring system, the sensor further comprises a demodulator, the demodulator being connected to the second coupler, the rectifying module and the controller, respectively.
In some embodiments, the data monitoring system includes an IQ impedance modulator including a wilkinson power divider and at least two adjustable resistors.
According to the transceiver, the electronic equipment and the data monitoring system, the harmonic generation module is arranged in the transceiver to simultaneously generate the fundamental wave signal and the harmonic signal, so that the use of two frequency sources is avoided, and the cost is effectively reduced.
Drawings
Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a transceiver according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a harmonic generation module in a transceiver according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a signal transceiver module in a transceiver according to an embodiment of the present application.
Fig. 4 is a schematic diagram of uplink signal flow and downlink signal flow in a transceiver according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a sensor according to an embodiment of the present application.
Fig. 6 is a schematic diagram of a 4QAMIQ impedance modulator in a sensor provided in an embodiment of the present application.
Fig. 7 is a schematic diagram of a 16QAMIQ impedance modulator in a sensor provided in an embodiment of the present application.
Fig. 8 is a circuit structure of a rectifying module in a sensor according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defining "first," "second," or the like, may explicitly or implicitly include one or more features, and in the description of the present invention, a meaning of "a plurality" is two or more, unless otherwise specifically defined.
Referring to fig. 1, the present embodiment provides a data monitoring system, which includes an electronic device and a sensor 10, wherein the electronic device is used as a master terminal, the sensor 10 is used as a slave terminal, one or more sensors 10 can be set up, and one or more sensors 10 can establish communication with the electronic device so as to realize application requirements of multiple scenes. For example, if the data monitoring system is applied to a smart home, the master side may supply power to a plurality of slaves and implement uplink high-rate data communication. If the data monitoring system is applied to an unmanned factory, the sensor 10 needs to report a large amount of data to the electronic device in real time, so that the electronic device can acquire the working state of the sensor 10 and know the monitoring information of the sensor 10. If the data monitoring system is applied in IoT scenarios, the data monitoring system can be used for monitoring states of roads, bridges, reservoirs, etc., and the sensor 10 needs to report a large amount of information in real time, so that the electronic device can know the monitoring information of the sensor 10.
Wherein, the transceiver 20 is used for transmitting fundamental wave signals and harmonic wave signals to the sensor 10, receiving reflected signals transmitted by the sensor 10 in response to the harmonic wave signals, and acquiring monitoring information of the sensor 10 according to the reflected signals.
Specifically, the electronic device includes a transceiver 20, through which transceiver 20 communication is established with the external sensor 10. Specifically, the transceiver 20 includes a microprocessor 210, a harmonic generation module 220, a signal transceiver module 230, and a modem 240; the harmonic generation module 220 is connected to the microprocessor 210, the signal transceiver module 230 is connected to the harmonic generation module 220, and the modem 240 is connected to the signal transceiver module 230 and the microprocessor 210.
For uplink signal flow, at the host side: the harmonic generation module 220 is used for outputting a fundamental wave signal and a harmonic signal in response to the control of the microprocessor 210; the signal transceiver module 230 is configured to amplify the fundamental wave signal and the harmonic wave signal and transmit the amplified fundamental wave signal and the harmonic wave signal to the external sensor 10, and receive a reflected signal transmitted by the sensor 10 in response to the harmonic wave signal; the modem 240 is configured to receive the reflected signal and the harmonic signal coupled and output by the signal transceiver module 230, demodulate the harmonic signal as a local oscillation signal and the reflected signal, and output the demodulated signal to the microprocessor 210; the microprocessor 210 analyzes the signal output by the modem 240 to facilitate real-time knowledge of the current sensor 10 monitoring information.
In the present application, the harmonic generation module 220 is arranged in the transceiver 20 at the host end to generate the fundamental wave signal and the harmonic signal simultaneously, so that the use of two frequency sources is avoided, and the cost is effectively reduced.
Referring to fig. 2, in some embodiments, the harmonic generation module 220 includes a crystal resonator 221, a phase frequency detector 222, a low-pass filter 223, a voltage-controlled oscillator 224, a first frequency divider 225, and a second frequency divider 226, where the crystal resonator 221 is connected to the phase frequency detector 222, the phase frequency detector 222 is connected to the first frequency divider 225 and the low-pass filter 223, the low-pass filter 223 is connected to the voltage-controlled oscillator 224, the voltage-controlled oscillator 224 is connected to the signal transceiver module 230, the first frequency divider 225, and the second frequency divider 226 is also connected to the signal transceiver module 230.
The crystal resonator 221, the phase frequency detector 222, the low-pass filter 223, the voltage-controlled oscillator 224 and the first frequency divider 225 form a phase-locked loop, the output signal of the voltage-controlled oscillator 224 is a high-frequency harmonic signal, and the signal obtained after the output signal of the voltage-controlled oscillator 224 passes through the second frequency divider 226 is a low-frequency fundamental signal. The harmonic generation circuit is formed in a phase-locked loop mode, so that the harmonic generation circuit is simple in structure, the structure of a host end can be greatly simplified, and the cost of the host end is reduced.
Referring to fig. 3, in some embodiments, the signal transceiver module 230 includes a junction circuit 231, an amplifier 232, a first coupler 233, a circulator 234, and a first antenna 235, where the circulator 234 is further connected to a modem 240, and the first coupler 233 is further connected to the modem 240.
For the uplink signal stream, the combiner 231 is configured to receive the fundamental wave signal and the harmonic wave signal, and output the fundamental wave signal and the harmonic wave signal to the amplifier 232; the amplifier 232 is configured to amplify the fundamental wave signal and the harmonic wave signal and output the amplified fundamental wave signal and harmonic wave signal to the first coupler 233; the first coupler 233 is configured to couple out harmonic signals to the modem 240 so as to provide local oscillation signals for the demodulation process of the uplink signals, and the first coupler 233 is further configured to output fundamental wave signals and harmonic signals to the first antenna 235 through the circulator 234; the first antenna 235 is used for transmitting fundamental wave signals and harmonic wave signals; the first antenna 235 also receives reflected signals; the circulator 234 is configured to output the reflected signal received by the first antenna 235 to the modem 240, so that the modem 240 can demodulate the reflected signal and the local oscillation signal together and send the demodulated signal to the microprocessor 210.
As one example, the microprocessor 210 in the present application is a DSP (digital signal processor).
Referring to fig. 4, in some embodiments, the transceiver 20 further includes a first rf switch, a second rf switch, and a third rf switch; the first radio frequency switch is respectively connected with the second frequency divider 226, the second radio frequency switch and the combiner 231, the second radio frequency switch is also connected with the modem 240 and the first coupler 233, and the third radio frequency switch is respectively connected with the modulation first coupler 233, the combiner 231 and the amplifier 232; the first radio frequency switch, the second radio frequency switch and the third radio frequency switch are all single-pole double-throw switches.
For the downlink signal flow, at the host side, the microprocessor 210 controls the harmonic generation circuit to generate a fundamental wave signal, in a downlink time slot, the fundamental wave signal enters the modem 240 through the first radio frequency switch and the second radio frequency switch, the baseband data flow of the microprocessor 210 modulates the fundamental wave signal in the modem 240, the downlink data volume is smaller, and a modulation mode such as ASK or FSK is adopted, and a modulated signal output by the modem 240 enters the amplifier 232 through the third radio frequency switch to be amplified, and then is transmitted through the first antenna 235 through the first coupler 233 and the circulator 234.
For the downlink signal flow, at the host end, the microprocessor 210 controls the harmonic generation circuit to generate a fundamental wave signal, the fundamental wave signal enters the combiner 231 after passing through the first radio frequency switch in an uplink time slot, and higher harmonics generated by the harmonic generation circuit directly enter the combiner 231, signals output by the combiner 231 enter the amplifier 232 after passing through the third radio frequency switch, output signals of the amplifier 232 enter the coupler, a through end of the coupler enters the first antenna 235 through the circulator 234, and a coupling end of the first coupler 233 feeds the harmonic wave signal to the second radio frequency switch to enter the modem 240 to provide local oscillation signals for the uplink signal demodulation process.
Referring to fig. 5, in some embodiments, the sensor 10 includes a second antenna, a matching module 120, a second coupler 130, an IQ impedance modulator 140, a rectifying module 150, and a controller 160, wherein the second antenna is connected to the matching module 120, the matching module 120 is connected to the second coupler 130 and the IQ impedance modulator 140, the second coupler 130 is further connected to the rectifying module 150, and the rectifying module 150 is further connected to the IQ impedance modulator 140.
Wherein the second antenna is for receiving the fundamental wave signal and the harmonic wave signal and transmitting the reflected signal reflected by the IQ impedance modulator 140 to the transceiver 20; the matching module 120 is configured to output the fundamental wave signal to the second coupler 130 and to output the harmonic wave signal to the IQ impedance modulator 140; the second coupler 130 is used for outputting the fundamental wave signal to the rectification module 150; the rectification module 150 is used for generating direct current voltage according to the fundamental wave signal; the IQ impedance modulator 140 is configured to modulate the phase and amplitude of the harmonic signal in response to the control of the controller 160, and output a modulated signal, and the modulated signal is transmitted as a reflected signal to the transceiver 20 via the second antenna.
For the uplink signal flow, after the second antenna at the sensor 10 end receives the fundamental wave signal and the harmonic wave signal, the fundamental wave signal enters the second coupler 130 through the matching module 120, and then the direct-current end of the second coupler 130 enters the rectifying module 150 to generate direct-current voltage for power supply, specifically, for power supply to the controller 160. The harmonic signal enters the IQ impedance modulator 140 through the matching module 120, the IQ impedance modulator 140 controls the baseband data flow sent by the controller 160, the phase and the amplitude of the harmonic signal are modulated by changing the impedance of the IQ impedance modulator 140, the reflected signal is radiated to the first antenna 235 through the second antenna, the first antenna 235 receives the modulated signal with the carrier frequency Nf0, and then enters the modem 240 through the circulator 234 to be combined with the local oscillation signal for demodulation, and then is sent to the microprocessor 210 for processing.
In some embodiments, the sensor 10 further includes a demodulator 170, the demodulator 170 being connected to the second coupler 130, the rectifying module 150, and the controller 160, respectively. For the downlink signal flow, at the sensor 10 end, the second antenna receives the fundamental wave signal modulated by the host end, most of energy of the modulated fundamental wave signal passes through the matching module 120 and the second coupler 130 and then enters the rectifying module 150 to generate direct current voltage for other modules to use, and the other end of the second coupler 130 outputs smaller power to enter the demodulator 170 to be demodulated and then is sent to the controller 160.
In some embodiments, IQ impedance modulator 140 comprises a wilkinson power divider and at least two adjustable resistors. When two adjustable resistors are set as R1 and R2 respectively, a 4QAM modulation mode is adopted, as shown in fig. 6, fig. 6 is a schematic diagram of the 4QAMIQ impedance modulator 140; wherein,
Γ is the reflection coefficient. R1 and R2 are resistors controlled by IQ digital signals, and the resistance value of R1 can be 0 or + -infinity, and the resistance value of R2 can be 0 or + -infinity. Assuming that the resistance corresponding to the digital signal 0 is 0 and the resistance corresponding to the digital signal 1 is ++ -infinity, the following table 1 corresponds to:
TABLE 1
The amplitude and phase of the reflected signal reflect the high and low level of the IQ signal, and the IQ signal can be demodulated by demodulating the position in the original simian where the signal is located at the host side.
Of course, in some embodiments, to increase the uplink rate, a plurality of adjustable resistors may be provided, for example, a 16QAM modulation mode may be used, as shown in fig. 7, fig. 7 is a schematic diagram of a 16QAMIQ impedance modulator 140, and the adjustable resistors may be provided with four resistors, R1, R2, R3 and R4 respectively. At this time, the values of R1 and R2 are respectively in four values, and the four values are distributed in 0 to + -infinity, because the difference between two adjacent groups of values is necessarily smaller than the difference between 0 and + -infinity, and the four values distributed in 0 to + -infinity can generate larger fluctuation due to the consistency problem or high and low temperature of the device, so that the reflection coefficient deviates from the ideal value, and the modulation order of the IQ impedance modulator 140 can be expanded by using the IQ impedance modulator 140 scheme shown in fig. 7, and meanwhile, the load adjustable resistor still takes 0 or + -infinity, thereby increasing the difference of the resistance values in different IQ states, being beneficial to improving the consistency of the device and the problem that the load resistor deviates from the preset value in high and low temperature conditions, thereby reducing the reflection coefficient and improving the reliability in the high-order modulation mode.
The 16QAM IQ impedance modulator 140 in the present embodiment is obtained by expanding the IQ impedance modulator 140, and IQ signals are represented by 2-bit baseband data, wherein R1, R2, R3, and R4 can respectively take two states of 0 or + -infinity, and correspond to digital signals of 0 or 1. In this case, the difference between the impedance values taken by the adjustable load, i.e. the adjustable resistor, corresponding to the digital signals in different states is large, so as to reduce the probability of misjudgment of the reflection coefficient by the host, i.e. the error rate is smaller in the case of higher-order modulation.
In some embodiments, the rectifying module 150 in the present application may employ a multi-stage voltage-multiplying rectifying circuit, as shown in fig. 8, and fig. 8 is a schematic structural diagram of the multi-stage voltage-multiplying rectifying circuit. By adopting the multistage voltage doubling rectification, the output voltage amplitude can be improved, n is the number of stages, and the diode in the multistage voltage doubling rectification circuit is a low-threshold Schottky diode. The output voltage is V out ＝2n(v rf -v th ) Where Vout is the output voltage, vrf is the input RF amplitude, vth is the on-voltage drop of the diode.
In the application, the harmonic generation module 220 is added to the transceiver 20 at the host end to emit fundamental wave signals and harmonic signals, so that the use of two frequency sources is avoided, and the cost is reduced; and at the passive sensor 10 side, the fundamental wave signal and the harmonic wave signal are separated for rectification and IQ impedance modulation for upstream communication respectively. The mode that the host transmits fundamental wave signals and harmonic wave signals through the phase-locked loop is simpler, and the cost is lower.
The method comprises the steps that fundamental wave signals and higher harmonic signals are generated under the condition that complexity of a host is not increased, and the fundamental wave signals and the higher harmonic signals are separated at a sensor 10 and are used for rectification and back scattering communication respectively; under the condition of improving the modulation order, the difference degree of the load adjustable impedance under the adjacent digital state is still maintained, the stability of the reflection coefficient is effectively improved, and the error rate is reduced.
The embodiment of the application also provides a transceiver, which comprises a microprocessor, a harmonic generation module, a signal transceiver module and a modem; the harmonic generation module is used for responding to the control of the microprocessor to output fundamental wave signals and harmonic wave signals; the signal receiving and transmitting module is used for amplifying the fundamental wave signals and the harmonic wave signals and then transmitting the amplified fundamental wave signals and the harmonic wave signals to the external sensor, and receiving reflected signals transmitted by the sensor in response to the harmonic wave signals; the modem is used for receiving the reflected signal and the harmonic signal which is coupled and output by the signal receiving and transmitting module, and demodulating the harmonic signal serving as a local oscillation signal and the reflected signal and outputting the demodulated signal to the microprocessor; the harmonic generation module is arranged in the transceiver to simultaneously generate the fundamental wave signal and the harmonic signal, so that the use of two frequency sources is avoided, and the cost is effectively reduced. Since the transceiver is described in detail above, it is not described in detail here.
The embodiment of the application also provides electronic equipment, which comprises the transceiver, wherein the transceiver comprises a microprocessor, a harmonic generation module, a signal transceiver module and a modem; the harmonic generation module is used for responding to the control of the microprocessor to output fundamental wave signals and harmonic wave signals; the signal receiving and transmitting module is used for amplifying the fundamental wave signals and the harmonic wave signals and then transmitting the amplified fundamental wave signals and the harmonic wave signals to the external sensor, and receiving reflected signals transmitted by the sensor in response to the harmonic wave signals; the modem is used for receiving the reflected signal and the harmonic signal which is coupled and output by the signal receiving and transmitting module, and demodulating the harmonic signal serving as a local oscillation signal and the reflected signal and outputting the demodulated signal to the microprocessor; the harmonic generation module is arranged in the transceiver to simultaneously generate the fundamental wave signal and the harmonic signal, so that the use of two frequency sources is avoided, and the cost is effectively reduced. Since the transceiver is described in detail above, it is not described in detail here.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The transceiver provided by the embodiments of the present application has been described in detail, and specific examples are applied herein to illustrate the principles and embodiments of the present application, where the above description of the embodiments is only for helping to understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A transceiver, comprising:
a microprocessor;
the harmonic generation module is connected with the microprocessor and is used for outputting a fundamental wave signal and a harmonic wave signal in response to the control of the microprocessor;
the signal receiving and transmitting module is connected with the harmonic generation module and is used for amplifying the fundamental wave signals and the harmonic signals, transmitting the amplified fundamental wave signals and the amplified harmonic signals to an external sensor and receiving reflected signals transmitted by the sensor in response to the harmonic signals;
the modem is connected with the signal receiving and transmitting module and the microprocessor, and is used for receiving the reflected signal and the harmonic signal coupled and output by the signal receiving and transmitting module, demodulating the harmonic signal serving as a local oscillation signal and the reflected signal and outputting the demodulated signal to the microprocessor.
2. The transceiver of claim 1, wherein the harmonic generation module comprises a crystal resonator, a phase frequency detector, a low pass filter, a voltage controlled oscillator, a first frequency divider, and a second frequency divider, the crystal resonator is connected to the phase frequency detector, the phase frequency detector is connected to the first frequency divider and the low pass filter, the low pass filter is connected to the voltage controlled oscillator, the voltage controlled oscillator is connected to the signal transceiver module, the first frequency divider, and the second frequency divider is further connected to the signal transceiver module.
3. The transceiver of claim 2, wherein the signal transceiver module comprises a junction circuit, an amplifier, a first coupler, a circulator, and a first antenna connected in sequence, the circulator further connected to the modem, the first coupler further connected to the modem;
the combiner is configured to receive the fundamental wave signal and the harmonic wave signal, and output the fundamental wave signal and the harmonic wave signal to the amplifier; the amplifier is used for amplifying the fundamental wave signals and the harmonic wave signals and outputting the amplified fundamental wave signals and the amplified harmonic wave signals to the first coupler; the first coupler is used for coupling the harmonic signals to the modem and outputting the fundamental wave signals and the harmonic signals to the first antenna through the circulator; the first antenna is used for transmitting the fundamental wave signal and the harmonic wave signal; the first antenna is also configured to receive the reflected signal; the circulator is used for outputting the reflected signal received by the first antenna to the modem.
4. The transceiver of claim 3, further comprising a first radio frequency switch, a second radio frequency switch, and a third radio frequency switch; the first radio frequency switch is respectively connected with the second frequency divider, the second radio frequency switch and the combiner, the second radio frequency switch is also connected with the modem and the first coupler, and the third radio frequency switch is respectively connected with the modulation first coupler, the combiner and the amplifier.
5. The transceiver of claim 4, wherein the first, second and third radio frequency switches are single pole double throw switches.
6. An electronic device comprising a transceiver as claimed in any one of claims 1-5.
7. A data monitoring system comprising an electronic device and a sensor, the electronic device comprising a transceiver as claimed in any one of claims 1-5; the transceiver is used for transmitting fundamental wave signals and harmonic wave signals to the sensor, receiving reflected signals transmitted by the sensor in response to the harmonic wave signals, and acquiring monitoring information of the sensor according to the reflected signals.
8. The data monitoring system of claim 7, wherein the sensor comprises a second antenna, a matching module, a second coupler, an IQ impedance modulator, a rectifying module, and a controller, the second antenna being connected to the matching module, the matching module being connected to the second coupler and the IQ impedance modulator, respectively, the second coupler being further connected to the rectifying module, the rectifying module being further connected to the IQ impedance modulator;
the second antenna is configured to receive the fundamental wave signal and the harmonic wave signal, and transmit the reflected signal reflected by the IQ impedance modulator to the transceiver; the matching module is used for outputting the fundamental wave signal to the second coupler and outputting the harmonic wave signal to the IQ impedance modulator; the second coupler is used for outputting the fundamental wave signal to the rectifying module; the rectification module is used for generating direct-current voltage according to the fundamental wave signal; the IQ impedance modulator is used for responding to the control of the controller to modulate the phase and the amplitude of the harmonic signal and then outputting a modulation signal, and the modulation signal is used as the reflection signal and sent to the transceiver through the second antenna.
9. The data monitoring system of claim 8, wherein the sensor further comprises a demodulator, the demodulator being connected to the second coupler, the rectifying module, and the controller, respectively.
10. The data monitoring system of claim 8, wherein the IQ impedance modulator comprises a wilkinson power divider and at least two adjustable resistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311101023.7A CN117411508A (en) | 2023-08-29 | 2023-08-29 | Transceiver, electronic equipment and data monitoring system |
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