WO2022262249A1 - 信能复用接收装置与无线接收链路系统 - Google Patents

信能复用接收装置与无线接收链路系统 Download PDF

Info

Publication number
WO2022262249A1
WO2022262249A1 PCT/CN2021/141649 CN2021141649W WO2022262249A1 WO 2022262249 A1 WO2022262249 A1 WO 2022262249A1 CN 2021141649 W CN2021141649 W CN 2021141649W WO 2022262249 A1 WO2022262249 A1 WO 2022262249A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
energy
module
energy storage
control module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/141649
Other languages
English (en)
French (fr)
Inventor
唐杰
马若炎
罗乾峪
王杏林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China University of Technology SCUT
Original Assignee
South China University of Technology SCUT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Publication of WO2022262249A1 publication Critical patent/WO2022262249A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Definitions

  • the present application relates to the technical field of communication equipment, in particular to a signal energy multiplexing receiving device and a wireless receiving link system.
  • Wireless energy transmission is a technology that can collect environmental energy and convert it into DC energy, where environmental energy includes thermal energy, solar energy, electromagnetic energy, etc.
  • Wireless energy carrying technology refers to the technology that uses electromagnetic waves as the carrier of information transmission and energy transmission, and can simultaneously transmit information and energy. This technology can be regarded as a combination of wireless communication technology and wireless energy transmission technology.
  • the research on wireless energy carrying technology mainly focuses on the optimization of the throughput of the wireless energy carrying communication system, the optimization of energy and information ratio, the optimization of the modulation mode of the wireless energy carrying communication system, etc., and less involves the prototype of the wireless energy carrying communication system.
  • the present application provides a signal multiplexing receiving device and a wireless receiving link system.
  • a signal energy multiplexing receiving device comprising a power division module, a control module and an energy storage module, the power division module is connected to the control module and the energy storage module respectively, the energy storage module is connected to the control module, and the control module is connected to a peripheral circuit;
  • the power dividing module divides the received rectified signal into baseband signal and DC energy, sends the baseband signal to the control module and sends the DC energy to the energy storage module, and the energy storage module stores the energy carried in the DC energy.
  • the control module demodulates the baseband signal and outputs it to the peripheral circuit.
  • the above-mentioned signal energy multiplexing receiving device further includes a first matching resistor and a second matching resistor, the power dividing module is connected to the control module through the first matching resistor, and the power dividing module is connected to the energy storage through the second matching resistor module connection.
  • the signal energy multiplexing receiving device further includes a boost module, and the second matching resistor is connected to the energy storage module through the boost module.
  • the boost module includes an overcharge-proof boost chip
  • the energy storage module includes a backup battery and a super capacitor
  • the backup battery and the super capacitor are respectively connected to the boost chip
  • the control module is connected to the super capacitor. Take electricity from the capacitor.
  • control module is also used to demodulate and separate the baseband signal into a display signal, a feedback signal and a control signal, send the display signal to the display device in the peripheral circuit, and send the feedback signal to the display device in the peripheral circuit.
  • the feedback device sends a control signal to the back-end load in the peripheral circuit.
  • the feedback signal is used to control the feedback device to feed back the energy acquisition status of the receiving end to the transmitter.
  • the control signal is used to control whether the back-end load is powered to start.
  • control module is also used to obtain the power consumption corresponding to the display device, the feedback device, and the back-end load, and obtain the charging amount of the energy storage module, and control the display device and the feedback device according to the power consumption and charging amount And whether the back-end load takes power to start.
  • the power dividing module includes a signal receiving interface connected in sequence, an adjustable power dividing unit and an impedance matching unit, the signal receiving interface receives the rectified signal, and the adjustable power dividing unit divides the rectified signal power into baseband signal and DC energy, and adjust the ratio of the baseband signal and DC energy, and the impedance matching unit makes the baseband signal and the rectified signal impedance match.
  • the power dividing module includes a signal receiving interface, a first adjustable resistance, a second adjustable resistance and a third adjustable resistance;
  • One end of the first adjustable resistor is connected to the signal receiving interface, the other end of the first adjustable resistor is respectively connected to one end of the second adjustable resistor and one end of the third adjustable resistor, and the other end of the second adjustable resistor is connected to the storage The other end of the third adjustable resistor is grounded;
  • the signal receiving interface receives the rectified signal.
  • the first adjustable resistor and the second adjustable resistor divide the rectified signal power into baseband signal and DC energy.
  • the resistance value of the two adjustable resistors is related.
  • the power dividing module further includes a diode, and the first adjustable resistor is connected to the energy storage module through the diode.
  • the control module controls the display device and the feedback device in the peripheral circuit to take power from the energy storage module to work, and the second predetermined value is greater than the preset start-up voltage .
  • the energy storage module is respectively connected with the control module, the display device and the feedback device, and the energy of the energy storage module is supplied to the control module, the display device and the feedback device respectively.
  • the feedback signal includes the voltage value and/or signal-to-noise ratio of the received signal at the receiving end, and when the voltage value or the signal-to-noise ratio is lower than a third predetermined value, the transmitting end is made to adjust the transmission mode or change the transmission mode in the transmitting end.
  • the location of the transmitter is not limited to the transmitter.
  • a boost peripheral circuit is arranged around the boost chip, and the boost peripheral circuit is used to control the boost stop threshold and/or the boost output threshold.
  • the present application provides a wireless receiving link system, including a receiving component, a rectifying component, and the above-mentioned signal multiplexing receiving device connected in sequence.
  • FIG. 1 is an application environment diagram of a signal multiplexing receiving device of the present application in an embodiment
  • FIG. 2 is a schematic structural diagram of a signal energy multiplexing receiving device in an embodiment
  • Fig. 3 is a schematic structural diagram of a signal multiplexing receiving device in another embodiment
  • FIG. 4 is a schematic diagram of a circuit principle of a boost module in another embodiment
  • Fig. 5 is a structural schematic diagram of a signal energy multiplexing receiving device in an application example
  • Fig. 6 is a schematic diagram of the partial circuit principle of the microcontroller part of the signal energy multiplexing receiving device in an application example
  • Fig. 8 is a schematic diagram of the circuit principle of the power dividing module in an embodiment
  • FIG. 9 is a schematic structural diagram of the wireless receiving link system of the present application in an embodiment
  • FIG. 10 is a schematic diagram of an application environment of the wireless receiving link system of the present application in an embodiment
  • Fig. 11 is a schematic diagram of energy link control logic
  • Fig. 12 is a schematic diagram of information link control logic.
  • the wireless energy carrying communication system is mainly related to the energy harvesting circuit of radio frequency energy harvesting.
  • the receiver can realize the storage and management of the DC energy passing through the radio frequency rectification circuit through the energy management chip.
  • this energy harvesting circuit cannot demodulate information.
  • the significance of radio frequency energy wireless transmission is to complete energy transmission while transmitting information. Simply transmitting information or energy is a waste of energy.
  • the present application provides a signal multiplexing receiving device and a wireless receiving link system capable of transmitting information and energy.
  • the transmitting link includes digital modules, analog modules and transmitting antennas
  • the receiving link includes receiving antennas, rectifiers Circuit and information energy composite receiver, as shown in Figure 1, the overall operating mechanism is: the digital module modulates the signal, this work can be carried out on platforms such as FPGA, and the modulated digital signal enters the analog module for up-conversion, After filtering, signal amplification and other steps, it becomes an analog signal that can be transmitted by the transmitting antenna.
  • the transmitting antenna uses electromagnetic waves as the carrier to radiate the RF energy carrying the signal to free space, and the receiving antenna receives the RF energy carrying the signal within a corresponding distance.
  • the radio frequency energy enters the radio frequency rectification circuit, and after rectification, the DC energy carrying the baseband signal is output to the back-end composite receiver.
  • the composite receiver separates the energy from the information, the information path performs information demodulation, and the energy path performs boosting and energy storage , the energy output terminal of the composite receiver is connected to the back-end load to provide energy for the back-end load.
  • the signal energy multiplexing receiving device provided by this application can be applied to the application scenario shown in Figure 1, and it can specifically replace the composite receiver in Figure 1.
  • the signal energy multiplexing receiving device of this application includes a power division Module, control module and energy storage module, the power division module divides the rectified signal into baseband signal and DC energy, sends the baseband signal to the control module and sends the DC energy to the energy storage module, and the energy storage module stores the DC energy
  • the control module detects the voltage of the energy storage module, and when the voltage is not less than the preset start-up voltage, the baseband signal is demodulated and output.
  • a signal energy multiplexing receiving device including a power division module 110, a control module 120 and an energy storage module 130, and the power division module 110 is connected to the control module 120 and the energy storage module respectively.
  • the module 130 is connected, the energy storage module 130 is connected with the control module 120, and the control module 120 is connected with the peripheral circuit;
  • the power dividing module 110 divides the received rectified signal into baseband signal and DC energy, and sends the baseband signal to the control module 120 and sends the DC energy to the energy storage module 130, and the energy storage module 130 stores the DC energy carried energy, when the voltage of the energy storage module 130 is not less than the preset startup voltage corresponding to the control module 120, the control module 120 demodulates the baseband signal and outputs it to the peripheral circuit.
  • the power division module 110 is used to divide the rectified signal into baseband signal and DC energy, wherein the baseband signal is the signal (communication signal) to be transmitted, the baseband signal is sent to the control module 120, and the DC energy is sent to the energy storage Module 130.
  • the control module 120 demodulates the baseband signal after startup, which can demodulate and separate three types of signals: display signal, feedback signal and control signal, wherein the display signal is used to control the display information of the display device in the peripheral circuit, and the feedback signal is used to control
  • the feedback device in the peripheral circuit returns the energy acquisition status of the receiving end to the signal transmitting end, and the signal transmitting end can adjust the transmitting position, Transmission mode and other parameters, so that the receiving end (receiving link) can receive better quality signals.
  • the energy storage module 130 is used to store the energy carried in the DC energy signal. As the charging time goes by, the voltage in the energy storage module 130 gradually increases. When it reaches the preset start-up voltage corresponding to the control module 120, the control module 120 takes energy from the energy storage module 130 to demodulate the baseband signal. Further, if the energy in the energy storage module 130 is sufficient (for example, the voltage in the energy storage module 130 exceeds a second predetermined value, and the second predetermined value is greater than the preset start-up voltage), the control module 120 can also control other devices in the peripheral circuit (for example, the above-mentioned display device, feedback device, etc.) obtain power from the energy storage module 130 to work.
  • the control module 120 can also control other devices in the peripheral circuit (for example, the above-mentioned display device, feedback device, etc.) obtain power from the energy storage module 130 to work.
  • the signal energy multiplexing receiving device of this application includes a power division module 110, a control module 120, and an energy storage module 130.
  • the power division module 110 divides the received rectified signal into a baseband signal and DC energy, and sends the baseband signal to
  • the control module 120 sends the DC energy to the energy storage module 130, and the energy storage module 130 stores the energy carried in the DC energy.
  • the control module 120 will Baseband signal demodulation output peripheral circuit.
  • the whole device can divide the rectified signal power into baseband signal and DC energy, store the DC energy in the energy storage module 130, and only when the voltage in the energy storage module 130 reaches the preset start-up voltage, the control module 120 will start the pair of Baseband signal demodulation avoids energy consumption caused by frequent "trial" demodulation signals when the preset start-up voltage is not reached, resulting in failure to demodulate normally, and multiplex transmission of information and energy can be realized.
  • the above-mentioned signal multiplexing receiving device further includes a first matching resistor 140 and a second matching resistor 150, and the power dividing module 110 is connected to the control module 120 through the first matching resistor 140, The power dividing module 110 is connected to the energy storage module 130 through the second matching resistor 150 .
  • the baseband signal enters the control module 120 through the first matching resistor 140 .
  • the first matching resistor 140 is an external matching resistor of the ADC, and the baseband signal specifically enters the ADC sampling port of the control module 120 , and the control module 120 demodulates the baseband signal.
  • the DC energy enters the energy storage module 130 through the second matching resistor 150 .
  • the DC voltage of the DC energy obtained through the power dividing module 110 is very weak, and after the DC energy is divided, it needs to pass through a matching resistor first, because at the initial stage of the receiving end, all the components of the entire receiving system are turned off State, the overall resistance of the receiving system is very low, but the optimal resistance point of the front-end rectification circuit is generally between several hundred ohms and several thousand ohms, so it is necessary to add matching resistors to help the rectification circuit work at the optimum point to achieve energy conversion Maximize efficiency.
  • the signal energy multiplexing receiving device further includes a boost module 160 , and the second matching resistor 150 is connected to the energy storage module 130 through the boost module 160 .
  • the DC voltage of the DC energy is very weak, so a booster module is needed to assist in boosting the voltage so that the voltage can meet the working voltage requirements of the back-end load. Further, the DC energy flows through the second matching resistor 150 and reaches the boost module 160.
  • the boost module 160 pre-configures the boost output threshold and the boost stop threshold through the external hardware configuration circuit to prevent the circuit from overcharging.
  • the boost module 160 The output end of the booster module 160 is connected to the energy storage module 130, and the energy storage module 130 can start to store energy when the voltage output by the booster module 160 reaches a certain level.
  • the energy storage module includes a backup battery and a supercapacitor, wherein the supercapacitor is used as the core energy storage device, and the backup battery and the supercapacitor are respectively connected to the boost module.
  • the boost module can specifically be a boost chip, a backup battery and a super capacitor. The capacitors are respectively connected to two different pins on the boost chip.
  • the power dividing module 110, the control module 120, the energy storage module 130 and the boost module 160 mentioned above may be implemented by dedicated hardware (such as an electronic circuit).
  • the power dividing module 110 may be, for example, a power divider
  • the control module 120 is, for example, a controller, a microcontroller or a control chip
  • the energy storage module 130 is, for example, an energy storage circuit
  • the boost module 160 is, for example, a boost circuit.
  • the boost module is a boost chip
  • the energy storage module includes a backup battery and a supercapacitor.
  • the DC energy after power division is connected to the VIN pin of the boost chip through VCC-in, and the boost chip programs the boost characteristics in the form of external circuit design, as shown in Figure 4, SETSD, SETBK,
  • the resistors R5, R6, R7, R8, R12, R14, R15, and R16 connected to TERM, SETPG, and SETHYST can determine the boost stop threshold of the boost device, the discharge cut-off voltage of the energy storage device, and when to use the backup battery. Enabling the above functions will allow the boost chip to operate according to the preset state without external control.
  • C10 and C11 are backup batteries and supercapacitors respectively.
  • the main energy storage device is a supercapacitor.
  • the boost chip will continue to provide boosted energy for the supercapacitor. It should be noted that the capacitance value of the supercapacitor should not be too large. Otherwise, the charging will be very slow, but it should not be too small. If it is too small, the entire device will not be able to run for too long when the external energy source is lost.
  • the specific value of the super capacitor is mainly based on the power of the back-end load and the required working time.
  • the control module will take power directly from the supercapacitor, as shown in the BAT+ pin in Figure 4. When the charging voltage rises to the minimum operating voltage of the control module, the control module will start to work. In addition, the display device and feedback in the peripheral circuit The device will also draw power from BAT+, but it will be controlled by the control module to prevent it from continuously consuming power.
  • control module is also used to obtain the power consumption corresponding to the display device, the feedback device, and the back-end load, and obtain the charging amount of the energy storage module, and control the display device and the feedback device according to the power consumption and charging amount And whether the back-end load takes power to start.
  • the control module also manages the power of the display devices, feedback devices and back-end loads contained in the peripheral circuits, so as to prevent these peripheral devices from consuming too much power and causing the entire device to fail to achieve normal communication (demodulation).
  • a control circuit can also be provided between the control module and the back-end load, and the control module outputs an enable signal to control the control circuit to control whether the back-end load is allowed to take power, and the control module also directly outputs the enable signal to the display device and the feedback device, the display device and the feedback device determine whether they can take power from the energy storage module only after receiving the enable signal from the control module.
  • control module is a microcontroller
  • energy storage module is an energy storage circuit
  • the DC energy flows through the matching resistor and reaches the boost circuit.
  • the boost circuit pre-configures the boost output threshold and the boost stop threshold through the external hardware configuration circuit to prevent the circuit from being overcharged.
  • the output of the boost circuit The energy storage circuit will start to store energy when the voltage output by the booster module reaches a certain level.
  • the energy storage circuit will be directly connected to the microcontroller, display device, and feedback device, respectively corresponding to the DC energy a circuit, DC energy circuit b, DC energy circuit C, the corresponding DC energy channel a of the microcontroller will continue to take power from the energy storage circuit, when the voltage reaches the minimum operating voltage of the microcontroller, the microcontroller starts to work, and attention should be paid although the DC energy circuit B and the DC energy circuit C are directly connected to the display device and the feedback device, whether they work or not will be controlled by the microcontroller, so there will be no uncontrolled power consumption of electrical appliances, and at the same time The power consumption of end-use appliances is directly controlled by the control circuit and does not take the form of direct connection to the energy storage circuit.
  • control module is also used to demodulate and separate the baseband signal into a display signal, a feedback signal and a control signal, send the display signal to the display device in the peripheral circuit, and send the feedback signal to the display device in the peripheral circuit.
  • Feedback device and send the control signal to the back-end load in the peripheral circuit.
  • the feedback signal is used to control the feedback device to feed back the energy acquisition state of the receiving end to the transmitter of the rectified signal.
  • the control signal is used to control whether the back-end load takes power Start or remain silent.
  • the control module demodulates and separates the baseband signal into a display signal, a feedback signal and a control signal.
  • the feedback signal is a signal used by the transmitter to obtain the energy acquisition status of the receiver, and then the transmitter changes the transmission mode based on the feedback signal.
  • the receiver can process the voltage value or the overall signal-to-noise ratio of the ADC sampling signal.
  • the receiver When the voltage value or the signal-to-noise ratio is high (for example, higher than the third predetermined value), it means that the receiver is located in a large energy coverage area and should be kept In the current transmission method, when the voltage value or signal-to-noise ratio is low (for example, lower than the third predetermined value), it means that the receiver is located at the edge of energy coverage, and the position of the transmitter or the transmission method should be adjusted, and the corresponding feedback signal It needs to be transmitted back through the back-end feedback device.
  • the types of feedback devices include LoRa (Long Range Radio, long-distance radio), wireless module, Bluetooth module, etc.
  • feedback calibration generally only needs to be performed once, and does not need to be in the work for a long time state, so the energy consumption is small;
  • the display signal is connected to the display device, and the device user can monitor the information received by the device in real time, and can manually intervene on the receiver at any time;
  • the control signal is to control whether the DC energy can supply power to the load
  • the signal that the load may have is: sensor equipment, monitoring equipment, control equipment and other electrical appliances.
  • the significance of this module setting is that in the process of circuit boosting, if the back-end load is directly connected to the energy storage circuit, Energy will continue to be consumed by the back-end load. If the power of the back-end load is too large, the charging speed is even slower than the power consumption speed of the back-end load.
  • the boost circuit can be equivalent to not working, and the entire receiving end is meaningless. , so this application first ensures that the boost circuit can make the microcontroller work, and then the microcontroller manages whether the back-end load is working through the control circuit, and at the same time, when the energy consumption is too large, some electrical appliances are turned off in time to ensure the normal operation of the entire receiver run.
  • control module can be a microcontroller.
  • the specific structure of the microcontroller and other circuits is shown in Figure 6.
  • the baseband signal after power division reaches the ADC0 port through the matching resistor, and the microcontroller can control the external input
  • the baseband signal is sampled and divided into display signal, feedback signal and control signal according to the type of signal. After running the code inside the microcontroller, the display signal, feedback signal and control signal will be distinguished.
  • the display signal passes through CS, WR and DA.
  • the port is transmitted to the Display module of the display device for viewing by the monitoring personnel; it is judged according to the voltage level of the ADC0 sampling signal or the signal-to-noise ratio of the signal, and the relative position status information is input to the Feedback module through the TXD pin and returned to the receiver end, which is convenient for the transmitter to judge the status of the receiver, so as to adjust the transmission mode in real time; the control signal comes from the transmitter, and after the control module receives the control command from the transmitter, it configures the switch chip through the pins (see Figure 7 for details of the switch chip).
  • the energy terminal determines whether the devices at the back end of JP8, JP9, and JP10 are turned off.
  • the MCU will sample the voltage value of the BAT+ super capacitor in real time to determine the power consumption speed, and then select Turn off the devices at the back end of JP8, JP9, and JP10 to achieve the purpose of energy saving.
  • P6.3/CB3/A3 shown in Figure 6 is the capacitor voltage monitoring pin.
  • a boost peripheral circuit is provided around the boost chip, and the boost peripheral circuit is used to control parameters such as a boost stop threshold, a boost output threshold, and the like. That is, the boost chip is provided with a programmable circuit, which is used to detect the voltage in the energy storage module. When the voltage reaches the preset start-up voltage corresponding to the microcontroller, the microcontroller takes the energy from the energy storage module. electric start.
  • the power dividing module includes a signal receiving interface connected in sequence, an adjustable power dividing unit and an impedance matching unit, the signal receiving interface receives the rectified signal, and the adjustable power dividing unit divides the rectified signal power into Baseband signal and DC energy, and adjust the ratio of baseband signal and DC energy.
  • the signal receiving interface can be understood as the rectified signal receiving port.
  • the adjustable power division unit is used to realize the power division of the rectified signal, which is divided into baseband signal and DC energy, and also supports the ratio of baseband signal and DC energy Adjustment, the impedance matching unit is used to achieve impedance matching between the baseband signal obtained after power division and the rectified signal, so as to achieve a higher signal-to-noise ratio.
  • the above-mentioned adjustable power dividing unit and impedance matching unit can be realized by special hardware (such as electronic circuit).
  • the power dividing module includes a signal receiving interface JP11, a first adjustable resistor R10, a second adjustable resistor R9, and a third adjustable resistor R11; one end of the first adjustable resistor R10 is connected to the signal
  • the receiving interface JP11 is connected, the other end of the first adjustable resistor R10 is respectively connected to one end of the second adjustable resistor R9 and one end of the third adjustable resistor R11, and the other end of the second adjustable resistor R9 is connected to the energy storage module,
  • the other end of the third adjustable resistor R11 is grounded;
  • the signal receiving interface JP11 receives the rectified signal, the first adjustable resistor R10 and the second adjustable resistor R9 divide the rectified signal power into baseband signal and DC energy, the baseband signal
  • the ratio of the DC energy to the DC energy is related to the resistance values of the first adjustable resistor R10 and the second adjustable resistor R9, and the third adjustable resistor R11 makes the signal path and the external input achieve impedance matching.
  • the rectified signal is connected through the JP11 interface shown in Figure 8.
  • the second adjustable resistor R9 and the first adjustable resistor R10 play the role of power division. Adjusting the resistance of R9 and R10 can determine the VCC-in energy path The ratio of the ADC0 signal path, while the first adjustable resistor R10 and the third adjustable resistor R11 can determine the input impedance of ADC0, in the case of determining the value of the first adjustable resistor R10 and the second adjustable resistor R9, By adjusting the third adjustable resistor R11, the signal path can be matched with the external input impedance to achieve the highest signal-to-noise ratio.
  • the second adjustable resistor R9 of the energy circuit not only has the function of power division, but also can play the role of matching the energy circuit, because the external rectification circuit requires a large resistance value of the back-end load, and only the boost device When working, the load at the back end is very small, which makes the rectifier circuit unable to work at the optimum point, so an additional resistor is needed to help the rectifier circuit reach the optimum point, and the second adjustable resistor R9 plays this role.
  • boost devices generally have a voltage stabilizing function
  • a diode D1 must be connected in series in front of VCC-in.
  • a Schottky diode with low forward conduction voltage is used to prevent the voltage stabilizing function of the boost device from being affected.
  • the sampling signal value of the ADC channel is used to prevent the voltage stabilizing function of the boost device from being affected.
  • the present application also provides a wireless receiving link system, including a receiving component 200 , a rectifying component 300 , and the above-mentioned signal multiplexing receiving device 100 connected in sequence.
  • the receiving component 200 receives the wireless signal, and the rectifying component 300 rectifies the wireless signal.
  • the rectified signal contains baseband signal and DC energy, and the rectified signal is sent to the signal energy complex.
  • the signal energy multiplexing receiving device 100 includes a power division module, a control module and an energy storage module.
  • the power division module divides the rectified signal into a baseband signal and a DC energy, and sends the baseband signal to the control module and
  • the DC energy is sent to the energy storage module, and the energy storage module stores the energy carried in the DC energy.
  • the control module demodulates the baseband signal and outputs it.
  • the whole system can divide the rectified signal power into baseband signal and DC energy, and store the DC energy in the energy storage module. Only when the voltage in the energy storage module reaches the preset start-up voltage, the control module will start to decompose the baseband signal.
  • the modulation avoids energy consumption caused by frequent "trial" demodulation signals when the preset start-up voltage is not reached, resulting in the failure of normal demodulation, and the multiplexing transmission of information and energy can be realized.
  • the wireless receiving link system of the present application can be applied to the scenario shown in Figure 9.
  • the signal energy multiplexing receiving device is an integrated composite receiver
  • the receiving component is a receiving antenna. Components are not shown, and the back-end loads are replaced by sensor nodes.
  • Figure 10 is a wireless energy-carrying communication system of a wireless sensor network.
  • there are often a lot of wireless sensor nodes Yes it will be very troublesome if wiring or battery power supply is used to provide power for sensor nodes, because wiring will make the entire monitoring scene dense and easily damaged. If using batteries, it is very difficult to manually replace batteries, so you need to use better energy supply method.
  • the wireless receiving link system of this application can better solve this problem. In this scenario, only one or a few radio frequency energy and signal transmitting units need to be deployed to complete the coverage of the entire wireless sensor network area.
  • the transmitting unit (such as a transmitter) radiates energy and signals into the air in the form of electromagnetic waves.
  • the sensor node receives the electromagnetic waves carrying energy and signals through the receiving antenna, and then separates them through the integrated composite receiver.
  • the energy will be stored in the receiver.
  • the information transmitted by the energy storage module and the transmitting module will be demodulated and processed by the receiver, and the receiver will perform operations according to the information content of the transmitting module, such as displaying the transmitting command, feeding back the status information of the receiver, and selecting which devices to supply power to the back-end, etc.
  • the energy storage device has a certain amount of power, which can meet the operating voltage of the microcontroller, so that when it is used for the first time, the microcontroller can feed back status information according to the received voltage, so that the transmitter can Adjust the transmission mode in real time, and the feedback work is usually only done once.
  • the transmitter will store the feedback information, and then will transmit information and energy to each node in a targeted manner.
  • the transmitting module turns off the transmission of information and energy
  • the integrated composite receiver will continue to work using the electric energy stored in the energy storage circuit, and monitor the power consumption of the energy storage circuit in real time. When the power consumption increases, some sensors can be turned off Node's module for energy saving.
  • the processing logic for the energy link is shown in Figure 11.
  • the boost chip When energy enters the input terminal of the boost chip, the boost chip will judge whether its voltage has reached its start-up voltage. If it does not reach the start-up voltage, it will keep silent. As the voltage output by the boost chip rises to store electric energy, the boost chip will judge whether it has reached the boost stop threshold according to the voltage set by the external hardware configuration circuit during this process. If it does not reach the boost stop threshold, it will continue to boost the voltage. When the boost stop threshold is reached, the voltage value is maintained.
  • the processing logic for the information link is shown in FIG. 12 .
  • the ADC samples the input signal, it is sent to the microcontroller for demodulation.
  • the microcontroller will separate the information according to the encoding method determined jointly with the transmitter. Specifically, the receiver can judge different signals through the agreement with the transmitter. Types such as feedback signals, display signals, and control signals. First, it is judged according to the feedback signal whether it is necessary to feed back the status of the receiver. For example, when the transmitter needs to feedback with the receiver, it will send the corresponding feedback demand signal, and the receiver can perform the feedback process after receiving the signal.
  • the transmitter will properly adjust the transmission mode according to the information fed back so that the transmission of information and energy reaches the optimal value. If it is not necessary to feed back the state of the receiver, then keep the feedback module Silence; secondly, judge whether there is information to be displayed according to the display signal, and if so, start the display module, and the information will be displayed by the display module; otherwise, keep the display module silent; finally judge whether there is a control command according to the control signal, and Select the load that needs power supply to start supplying power, otherwise, keep the load silent.
  • the above transmitter adjustment process is: when the transmitter performs spatial scanning, it will continuously obtain the feedback signal sent by the feedback device, and its main form is the average value of the sampled voltage within a period of time. After completing the spatial scan, the transmitter will poll all the feedback results, find out the beamforming factor corresponding to the maximum value, adjust the pattern of the transmitting antenna and then realize the beam alignment to the receiver.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Transmitters (AREA)

Abstract

本申请涉及一种能复用接收装置，包括功分模块、控制模块以及储能模块，功分模块将接收到的整流后的信号分为基带信号和直流能量，并将基带信号发送至控制模块以及将直流能量发送至储能模块，储能模块存储直流能量中携带的能量，当储能模块的电压不小于控制模块对应的预设启动电压时，控制模块将基带信号解调输出外围电路。本申请还提供一种包含上述能复用接收装置的无线接收链路系统。

Description

信能复用接收装置与无线接收链路系统
相关申请的交叉引用
本申请要求2021年06月18日递交的、标题为“信能复用接收装置与无线接收链路系统”、申请号为2021106753156的中国申请的优先权，其公开内容通过引用全部结合在本申请中。
技术领域
本申请涉及通信设备技术领域，特别是涉及一种信能复用接收装置与无线接收链路系统。
背景技术
无线能量传输是一种可采集环境能量并将其转化为直流能量的技术，其中环境能量包括热能、太阳能、电磁能等。无线携能技术是指以电磁波为信息传输与能量传输的载体，可同时进行信息与能量传输的技术，该技术可看为无线通信技术与无线能量传输技术的结合。
目前，对于无线携能技术的研究主要集中在无线携能通信系统吞吐量优化、能量与信息配比优化、无线携能通信系统调制方式优化等方面，较少涉及无线携能通信系统原型机。
发明内容
本申请提供一种信能复用接收装置与无线接收链路系统。
一种信能复用接收装置，包括功分模块、控制模块以及储能模块，功分模块分别与控制模块以及储能模块连接，储能模块与控制模块连接，控制模块与外围电路连接；
功分模块将接收到的整流后的信号分为基带信号和直流能量，并将基带信号发送至控制模块以及将直流能量发送至储能模块，储能模块存储直流能量中携带的能量，当储能模块的电压不小于控制模块对应的预设启动电压时，控制模块将基带信号解调输出外围电路。
在其中一个实施例中，上述信能复用接收装置还包括第一匹配电阻和第二匹配电阻，功分模块通过第一匹配电阻与控制模块连接，功分模块通过第二匹配电阻于储能模块连接。
在其中一个实施例中，上述信能复用接收装置还包括升压模块，第二匹配电阻通过升压模块与储能模块连接。
在其中一个实施例中，升压模块包括防过充的升压芯片，储能模块包括备用电池和超级电容，备用电池和超级电容分别与升压芯片连接，控制模块与超级电容连接，从超级电容中取电。
在其中一个实施例中，控制模块还用于将基带信号解调并分离为显示信号、反馈信号 以及控制信号，将显示信号发送至外围电路中的显示设备、将反馈信号发送至外围电路中的反馈设备、并将控制信号发送至外围电路中的后端负载，反馈信号用于控制反馈设备反馈接收端能量获取状态至发射端，控制信号用于控制后端负载是否取电启动。
在其中一个实施例中，控制模块还用于获取显示设备、反馈设备以及后端负载对应的耗电量，并获取储能模块的充电量，根据耗电量以及充电量控制显示设备、反馈设备以及后端负载是否取电启动。
在其中一个实施例中，功分模块包括依次连接的信号接收接口、可调功分单元以及阻抗匹配单元，信号接收接口接收整流后的信号，可调功分单元将整流后的信号功分为基带信号和直流能量，并且调整基带信号和直流能量的配比，阻抗匹配单元使基带信号与整流后的信号阻抗匹配。
在其中一个实施例中，功分模块包括信号接收接口、第一可调电阻、第二可调电阻以及第三可调电阻；
第一可调电阻的一端与信号接收接口连接，第一可调电阻的另一端分别与第二可调电阻的一端以及第三可调电阻的一端连接，第二可调电阻的另一端与储能模块连接，第三可调电阻的另一端接地；
信号接收接口接收整流后的信号，第一可调电阻以及第二可调电阻将整流后的信号功分为基带信号和直流能量，基带信号和直流能量的配比与第一可调电阻以及第二可调电阻的阻值相关。
在其中一个实施例中，功分模块还包括二极管，第一可调电阻通过二极管与储能模块连接。
在其中一个实施例中，当储能模块的电压不小于第二预定值时，控制模块控制外围电路中的显示设备和反馈设备从储能模块取电工作，第二预定值大于预设启动电压。
在其中一个实施例中，储能模块分别与控制模块、显示设备和反馈设备连接，并且储能模块的能量分别供应到控制模块、显示设备和反馈设备。
在其中一个实施例中，反馈信号包括接收端的接收信号的电压值和/或信噪比，当电压值或信噪比低于第三预定值时，使发射端调整发射方式或改变发射端中发射机的位置。
在其中一个实施例中，升压芯片的周围设置有升压外围电路，升压外围电路用于控制升压停止阈值和/或升压输出阈值。
另外，本申请提供一种无线接收链路系统，包括依次连接的接收组件、整流组件以及如上述的信能复用接收装置。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征、目的和优点将从说明书、附图以及权利要求书变得明显。
附图说明
图1为一个实施例中本申请信能复用接收装置的应用环境图；
图2为一个实施例中信能复用接收装置的结构示意图；
图3为另一个实施例中信能复用接收装置的结构示意图；
图4为另一个实施例中升压模块的电路原理示意图；
图5为一个应用实例中信能复用接收装置的结构示意图；
图6为一个应用实例中信能复用接收装置微控制器部分的局部电路原理示意图；
图7为开关芯片的电路原理示意图；
图8为一个实施例中功分模块的电路原理示意图；
图9为一个实施例中本申请无线接收链路系统的结构示意图；
图10为一个实施例中本申请无线接收链路系统的应用环境示意图；
图11为能量链路控制逻辑示意图；
图12为信息链路控制逻辑示意图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
目前与无线携能通信系统相关的主要是射频能量采集的能量采集电路，该接收机可以通过能量管理芯片实现对于经过射频整流电路的直流能量的储存和管理。然而这种能量采集电路并不能实现信息的解调，实际上射频能量无线传输的意义就在于传输信息的同时完成能量的传输，单纯的传输信息或者能量都是对于能量的浪费。
基于此，本申请提供一种可以实现传输信息和能量的信能复用接收装置与无线接收链路系统。
为了详细说明本申请信能复用接收装置的技术方案及其效果，下面将首先针对无线通信领域中信号发送(发射链路)和信号接收(接收链路)的相关知识做简单介绍。
从整体系统的框架来讲，要保证整个接收机的运作，需要有发射链路和接收链路两个部分，发射链路包括数字模块、模拟模块以及发射天线，接收链路包括接收天线、整流电路、信息能量复合接收机，如图1所示，整体的运行机制为：数字模块对信号进行调制，这一工作可在FPGA等平台进行，调制完成的数字信号进入到模拟模块进行上变频、滤波、信号放大等步骤后变成可由发射天线发射的模拟信号，发射天线以电磁波为载体将搭载信号的射频能量辐射到自由空间，接收天线则在相应的距离内接收到搭载信号的射频能量，射频能量进入到射频整流电路，经过整流之后输出搭载基带信号的直流能量到后端复合接收机，复合接收机将能量与信息分离，信息路进行信息解调，能量路则进行升压、储能，复合接收机的能量输出端与后端负载连接为后端负载提供能量。
本申请提供的信能复用接收装置可以应用于图1所示的应用场景中，其具体可以替换图1中的复合接收机，在实际应用中，本申请信能复用接收装置包括功分模块、控制模块以及储能模块，功分模块将整流后的信号分为基带信号和直流能量，并将基带信号发送至控制模块以及将直流能量发送至储能模块，储能模块存储直流能量中携带的能量，控制模块检测储能模块的电压，当电压不小于预设启动电压时，将基带信号解调输出。
在一个实施例中，如图2所示，提供了一种信能复用接收装置，包括功分模块110、 控制模块120以及储能模块130，功分模块110分别与控制模块120以及储能模块130连接，储能模块130与控制模块120连接，控制模块120与外围电路连接；
功分模块110将接收到的整流后的信号分为基带信号和直流能量，并将基带信号发送至控制模块120以及将直流能量发送至储能模块130，储能模块130存储直流能量中携带的能量，当储能模块130的电压不小于控制模块120对应的预设启动电压时，控制模块120将基带信号解调输出外围电路。
功分模块110用于实现将整流后的信号分为基带信号和直流能量，其中基带信号为所需传输的信号(通信信号)，基带信号送入至控制模块120，直流能量送入至储能模块130。控制模块120在启动之后对基带信号进行解调，其可以解调并分离显示信号、反馈信号以及控制信号三类信号，其中显示信号用于控制外围电路中显示设备显示信息，反馈信号用于控制外围电路中反馈设备回传接收端能量获取状态至信号发射端，信号发射端可以根据回传的接收端能量获取状态数据(主要包括接收信号电压值和/或信噪比等)调整发射位置、发射方式等参数，以使接收端(接收链路)接收到更佳质量的信号。储能模块130用于存储直流能量信号中携带的能量，随着充能时间的推移，储能模块130中电压逐步升高，当升高至控制模块120对应的预设启动电压时，控制模块120从储能模块130中取能工作，以对基带信号进行解调。进一步的，若储能模块130中能量充足(例如储能模块130中的电压超过第二预定值，第二预定值大于预设启动电压)，控制模块120还可以控制外围电路中的其他设备(例如上述的显示设备、反馈设备等)从储能模块130中取电工作。
本申请信能复用接收装置，包括功分模块110、控制模块120以及储能模块130，功分模块110将接收到的整流后的信号分为基带信号和直流能量，并将基带信号发送至控制模块120以及将直流能量发送至储能模块130，储能模块130存储直流能量中携带的能量，当储能模块的电压130不小于控制模块120对应的预设启动电压时，控制模块120将基带信号解调输出外围电路。整个装置可以将整流后的信号功分为基带信号和直流能量，将直流能量存储至储能模块130，只有当储能模块130中的电压达到预设启动电压时，控制模块120才会启动对基带信号解调，避免在未达到预设启动电压时频繁“尝试性”解调信号导致耗费能量，导致无法正常解调，可以实现信息和能量的复用传输。
如图3所示，在其中一个实施例中，上述信能复用接收装置还包括第一匹配电阻140和第二匹配电阻150，功分模块110通过第一匹配电阻140与控制模块120连接，功分模块110通过第二匹配电阻150与储能模块130连接。
基带信号通过第一匹配电阻140进入到控制模块120。具体地，该第一匹配电阻140是ADC外部匹配电阻，基带信号具体进入到控制模块120的ADC采样口，由控制模块120对基带信号进行解调。直流能量经过第二匹配电阻150进入到储能模块130。具体来说，通过功分模块110得到的直流能量的直流电压是很微弱的，直流能量分路之后需要先经过一个匹配电阻，因为在接收端工作初期，整个接收系统所有的器件都处于关断状态，接收系统的总体电阻很低，但是前端整流电路的工作最优阻值点一般都有几百欧姆到几千欧姆之间，因此需要加入匹配电阻帮助整流电路工作在最优点以达到能量转换效率的最大化。
如图3所示，在其中一个实施例中，上述信能复用接收装置还包括升压模块160，第二匹配电阻150通过升压模块160与储能模块130连接。
如之前已述的，直流能量的直流电压是很微弱的，因此需要升压模块以用于辅助提高电压，以使得电压能够满足后端负载的工作电压要求。进一步的，直流能量流过第二匹配电阻150之后到达升压模块160，升压模块160通过外部硬件配置电路预先配置好升压输出阈值以及升压停止阈值，防止电路过充，升压模块160的输出端与储能模块130连接，储能模块130在升压模块160输出的电压达到一定水平时即可开始储能。
进一步的，储能模块包括备用电池和超级电容，其中，超级电容作为核心的储能器件，备用电池和超级电容分别与升压模块连接，升压模块具体可以是升压芯片，备用电池和超级电容分别连接于升压芯片上两个不同的引脚。
在具体实施例中，上述功分模块110、控制模块120、储能模块130和升压模块160可以通过专用硬件(例如电子电路)来实现。更进一步地，功分模块110例如可以是功率分配器，控制模块120例如是控制器、微控制器或控制芯片，储能模块130例如是储能电路，升压模块160例如是升压电路。
为进一步详细解释在本申请信能复用接收装置中能量路的相关内容，下面将采用具体实例，并且结合图4展开说明。在该具体实例中，升压模块为升压芯片，储能模块包括备用电池和超级电容。如图4所示，功分后的直流能量通过VCC-in连接到升压芯片的VIN引脚，升压芯片通过外部电路设计的形式对升压特性进行编程，如图4，SETSD、SETBK、TERM、SETPG、SETHYST接入的电阻R5、R6、R7、R8、R12、R14、R15、R16能够决定升压器件的升压停止阈值、储能器件放电截止电压、何时启用备用电池等特性，上述功能的启用将使得升压芯片在不需要外部控制的情况下，自行根据预设状态运行。图4中C10、C11分别是备用电池和超级电容，主要储能器件是超级电容，升压芯片将持续为超级电容提供升压后的能量，需注意的是超级电容的电容值不能过大，否则充电会十分缓慢，但也不能过小，过小的话，在外部失去能量源的时候，整个设备将无法运行太久的时间。具体来说，超级电容具体的取值主要基于后端负载的功率以及需要的工作时间，电容的储能公式为W＝1/2CU 2，其中C为电容值数，U为电容两端电压，由上式可见C越大储能越大，U越大储能也越大，但是C、U越大在充能后期会十分缓慢。控制模块将直接从超级电容取电，如图4中BAT+引脚，当充电电压升到控制模块的最低工作电压时，控制模块将开始工作，除此之外，外围电路中的显示设备、反馈设备也将从BAT+取电，但是会受到控制模块的控制，防止其持续耗电。
在其中一个实施例中，控制模块还用于获取显示设备、反馈设备以及后端负载对应的耗电量，并获取储能模块的充电量，根据耗电量以及充电量控制显示设备、反馈设备以及后端负载是否取电启动。
控制模块还对外围电路中包含的显示设备、反馈设备以及后端负载进行电能管理，避免这些外围设备消耗过多的电能，导致整个装置无法实现正常的通信(解调)。具体来说，控制模块与后端负载之间还可以设置有控制电路，控制模块输出使能信号控制控制电路，以控制是否允许后端负载取电，控制模块还直接输出使能信号至显示设备和反馈设备，显 示设备和反馈设备只有在接收到控制模块的使能信号之后才确定是否能从储能模块中取电。
为了更进一步说明上述控制过程，下面将采用具体实例，结合图5详细介绍基带信号解调以及外围电路中设备取电控制的过程。在该具体应用实例中，控制模块为微控制器、储能模块为储能电路。
具体如图5所示，直流能量流过匹配电阻之后到达升压电路，升压电路通过外部硬件配置电路预先配置好升压输出阈值以及升压停止阈值，防止电路过充，升压电路的输出端与储能电路连接，储能电路在升压模块输出的电压达到一定水平时即可开始储能，储能电路将直接连接微控制器、显示设备、反馈设备，分别对应直流能量a路、直流能量b路、直流能量c路，微控制器对应的直流能量a路将持续从储能电路取电，当电压达到微控制器的最低工作电压时，微控制器开始工作，同时需注意的是直流能量b路、直流能量c路虽说是直连显示设备和反馈设备，但是它们工作与否都将受微控制器的控制，因此不会出现用电器不受控制取电的情况，同时后端用电器的用电是直接受控制电路控制不采取直连储能电路的形式。
在其中一个实施例中，控制模块还用于将基带信号解调并分离为显示信号、反馈信号以及控制信号，将显示信号发送至外围电路中的显示设备、将反馈信号发送至外围电路中的反馈设备、并将控制信号发送至外围电路中的后端负载，反馈信号用于控制反馈设备反馈接收端能量获取状态至整流后的信号的发射端，控制信号用于控制后端负载是否取电启动或保持静默。
控制模块将基带信号解调并分离为显示信号、反馈信号以及控制信号，反馈信号是一种用于发射端获取接收端能量获取状态的信号，进而发射端基于反馈信号改变发射方式。接收机可以对ADC采样信号的电压值或者总体信噪比情况进行处理，当电压值或者信噪比较高(例如高于第三预定值)时，表示接收机位于大能量覆盖区域，应保持目前的发射方式，当电压值或者信噪比较低(例如低于第三预定值)时，表示接收机位于能量覆盖的边缘地带，应调整发射机的位置或者是发射方式，相应的反馈信号需要通过后端的反馈设备进行回传，反馈设备的类型有LoRa(Long Range Radio，远距离无线电)、无线模块、蓝牙模块等，应注意的是，反馈校准一般只需一次，无需长时间处于工作状态，因此耗能较小；显示信号则是连接到显示设备，由设备使用者实时监控设备接收到的信息内容，可以随时对接收机进行人工干预；控制信号是控制直流能量是否可以给负载供电的信号，负载可能有的设备类型有：传感器设备、监控设备、控制设备等其他用电器，该模块设置的意义在于在电路升压的过程中，如果将后端负载与储能电路直接相连，能量会持续被后端负载消耗，如果后端负载的功率过大，充电速度甚至要小于后端负载的用电速度，此时升压电路可等效为不工作，整个接收端都失去了意义，因此本申请首先确保升压电路能够让微控制器工作，然后微控制器通过控制电路管理后端负载是否工作，同时在能量消耗过大时，及时关闭一些用电器以保证整个接收机的正常运行。
在具体应用实例中，控制模块可以为微控制器，微控制器与其他电路具体结构如图6所示，功分后的基带信号经过匹配电阻到达ADC0端口，微控制器即可对外部输入的基带 信号进行采样，根据信号的类别将划分为显示信号、反馈信号和控制信号，微控制器内部运行代码后将区分出显示信号、反馈信号和控制信号，显示信号通过CS、WR、DA几个端口传输至显示设备Display module，以供监控人员查看；根据ADC0采样信号的电压高低或者是信号的信噪比进行判断将相对的位置状态信息通过TXD引脚输入到Feedback module反馈模块回传至接收端，方便发射端判断接收端的状态，从而实时调控发射方式；控制信号来自于发射端，控制模块接收到发射端的控制命令后，通过引脚配置开关芯片(开关芯片具体详见图7)的使能端决定JP8、JP9、JP10后端的器件是否关闭，同时在没有外部能量输入的情况下，为防止器件过度耗电，MCU将通过实时采样BAT+超级电容的电压值以确定耗电速度，继而选择关断JP8、JP9、JP10后端的器件，从而达到节能的目的，如图6所示的P6.3/CB3/A3就是电容电压监控引脚。进一步的，在升压芯片的周围设置有升压外围电路，该升压外围电路是用来控制升压停止阈值、升压输出阈值等参数的。即在升压芯片设置有可编程电路，该可编程电路用于侦测储能模块内的电压，当电压达到微控制器对应的预设启动电压时，微控制器才从储能模块内取电启动。
在其中一个实施例中，功分模块包括依次连接的信号接收接口、可调功分单元以及阻抗匹配单元，信号接收接口接收整流后的信号，可调功分单元将整流后的信号功分为基带信号和直流能量，并且调整基带信号和直流能量的配比。
信号接收接口可以理解为整流后的信号接收端口，可调功分单元用于实现整流后的信号的功分，即分为基带信号和直流能量，并且还支持对基带信号和直流能量的配比调整，阻抗匹配单元用于使功分之后得到的基带信号与整流后的信号实现阻抗匹配，以达到较高的信噪比。
上述可调功分单元和阻抗匹配单元可以通过专用硬件(例如电子电路)来实现。
具体来说，如图8所示，功分模块包括信号接收接口JP11、第一可调电阻R10、第二可调电阻R9以及第三可调电阻R11；第一可调电阻R10的一端与信号接收接口JP11连接，第一可调电阻R10的另一端分别与第二可调电阻R9的一端以及第三可调电阻R11的一端连接，第二可调电阻R9的另一端与储能模块连接，第三可调电阻R11的另一端接地；信号接收接口JP11接收整流后的信号，第一可调电阻R10以及第二可调电阻R9将整流后的信号功分为基带信号和直流能量，基带信号和直流能量的配比与第一可调电阻R10以及第二可调电阻R9的阻值相关，第三可调电阻R11使信号路与外部输入达到阻抗匹配。
整流后的信号通过图8中所示的JP11接口接入，第二可调电阻R9与第一可调电阻R10起到功分的作用，调整R9与R10的阻值可以确定VCC-in能量路和ADC0信号路的配比，同时第一可调电阻R10和第三可调电阻R11可以确定ADC0的输入阻抗，在确定第一可调电阻R10与第二可调电阻R9值数的情况下，通过调节第三可调电阻R11可以使得信号路与外部输入阻抗匹配以达到最高的信噪比。需要指出的是，能量路的第二可调电阻R9除了具有功分的功能，还能够起到能量路的匹配作用，因为外部整流电路需要后端负载的阻值较大，而只有升压器件工作时后端的负载很小，这就使得整流电路无法工作在最优点，因此需要有额外的电阻帮助整流电路达到最优点，第二可调电阻R9就起到这一作用。进一步的，因为升压器件普遍都有稳压功能，所以必须在VCC-in前端串联一个二 极管D1，优选地，使用正向导通电压低的肖特基二极管，以防止升压器件的稳压功能影响ADC路的采样信号值。
如图9所示，本申请还提供一种无线接收链路系统，包括依次连接的接收组件200、整流组件300以及如上述的信能复用接收装置100。
本申请无线接收链路系统，接收组件200接收无线信号，整流组件300对无线信号进行整流，在该整流后的信号中包含有基带信号和直流能量，将该整流后的信号发送至信能复用接收装置100，信能复用接收装置100包括功分模块、控制模块以及储能模块，功分模块将整流后的信号分为基带信号和直流能量，并将基带信号发送至控制模块以及将直流能量发送至储能模块，储能模块存储直流能量中携带的能量，当储能模块的电压不小于控制模块对应的预设启动电压时，控制模块将基带信号解调输出。整个系统可以将整流后的信号功分为基带信号和直流能量，将直流能量存储至储能模块，只有当储能模块中的电压达到预设启动电压时，控制模块才会启动对基带信号解调避免在未达到预设启动电压时频繁“尝试性”解调信号导致耗费能量，导致无法正常解调，可以实现信息和能量的复用传输。
在具体应用实例中，本申请无线接收链路系统可以应用于如图9所示的场景，在该具体应用场景中，信能复用接收装置为集成复合接收机，接收组件为接收天线，整流组件未绘出，后端负载采用传感节点替代。
图10是一种无线传感网络的无线携能通信系统，在此场景下，将有多个无线传感监控设备分别监控后端设备，在这种应用场景中往往无线传感节点是非常多的，如果采用布线或者是电池供电的方式为传感节点提供电能会非常麻烦，因为布线的话会使得整个监控场景线路密集易损坏，使用电池的话，人工换电池又非常困难，因此需要使用更好的供能方法。本申请无线接收链路系统可以较好解决这个问题，在该场景下，只需要布设一个或几个射频能量和信号发射单元就可以完成对整个无线传感网络区域的覆盖。发射单元(如发射机)将能量和信号以电磁波的方式辐射到空中，传感节点通过接收天线接收到携带能量和信号的电磁波，再通过集成复合接收机分离，能量会被储存到接收机的储能模块，发射模块发射的信息会被接收机解调处理，接收机会根据发射模块的信息内容执行操作，例如显示发射指令、反馈接收机状态信息、选择为后端哪些器件供电等。需明确，在进行实际应用过程中，最好先保证储能器件有一定电量，能够满足微控制器的工作电压，这样首次使用时，微控制器可根据接收电压反馈状态信息，以便发射端能够实时调整发射方式，反馈工作通常情况只做一次即可，发射机将存储反馈信息，后续将有针对性的对每个节点传输信息和能量。当发射模块关断信息和能量的发送时，集成复合接收机会使用储能电路所储存的电能持续工作，并且实时监控储能电路耗电情况，当耗电增大时，可关断一些传感节点的模块以便节能。
在该应用实例中，针对能量链路的处理逻辑如图11所示。当能量进入到升压芯片的输入端，升压芯片会自行判断其电压值是否达到其启动电压，如果没有达到则保持静默，如果达到启动电压则开始升压，此时储能器件也会随着升压芯片输出的电压升高而储存电能，这个过程中升压芯片会根据外端硬件配置电路设置的电压判断是否到达升压停止阈 值，如没有到达升压停止阈值则继续升压，如到达升压停止阈值则保持电压值。
针对信息链路(基带信号)的处理逻辑如图12所示。ADC采样到输入信号之后传入微控制器进行解调，微控制器将根据与发射端共同确定的编码方式进行信息分离，具体来说，接收机可以通过与发射机的协议来判断不同的信号类型，例如反馈信号、显示信号以及控制信号。首先根据反馈信号判断是否需要反馈接收机状态，例如，当发射机需要与接收机进行反馈时，会发送对应的反馈需求信号，接收机收到信号后就可进行反馈流程。如果需要反馈接收机状态，则通过反馈模块向发射机反馈，发射机根据反馈到的信息适当调整发射方式使得信息和能量的传输达到最优值，如果不需要反馈接收机状态，则保持反馈模块静默；其次根据显示信号判断是否有需要显示的信息，如果有的话则启动显示模块，由显示模块显示信息，反之，则保持显示模块静默；最后根据控制信号判断是否有控制指令，根据控制指令选择需要供电的负载开始供电，否则，则保持负载静默。具体来说，上述发射机调整过程为：发射机进行空间扫描时，将持续获取反馈设备发送的反馈信号，其主要形式为一段时间内所采样电压的均值。在完成空间扫描后，发射机将轮询所有反馈结果，找出最大值所对应的波束赋形因子，调整发射天线的方向图继而实现波束对准接收机。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种信能复用接收装置，其位于无线通信的接收端并包括功分模块、控制模块以及储能模块，所述功分模块分别与所述控制模块以及所述储能模块连接，所述储能模块与所述控制模块连接，所述控制模块与外围电路连接；
    所述功分模块将接收到的整流后的信号分为基带信号和直流能量，并将所述基带信号发送至控制模块、以及将所述直流能量发送至所述储能模块，所述储能模块存储所述直流能量中携带的能量，当所述储能模块的电压不小于所述控制模块对应的预设启动电压时，所述控制模块将所述基带信号解调输出至所述外围电路。
  2. 根据权利要求1所述的装置，其中，还包括第一匹配电阻和第二匹配电阻，所述功分模块通过所述第一匹配电阻与所述控制模块连接，所述功分模块通过所述第二匹配电阻与所述储能模块连接。
  3. 根据权利要求2所述的装置，其中，还包括升压模块，所述第二匹配电阻通过所述升压模块与所述储能模块连接。
  4. 根据权利要求3所述的装置，其中，所述升压模块包括防过充的升压芯片，所述储能模块包括备用电池和超级电容，所述备用电池和所述超级电容分别与所述升压芯片连接，所述控制模块与所述超级电容连接，从所述超级电容中取电。
  5. 根据权利要求1所述的装置，其中，所述控制模块还用于将所述基带信号解调并分离为显示信号、反馈信号以及控制信号，将所述显示信号发送至外围电路中的显示设备、将所述反馈信号发送至外围电路中的反馈设备、并将所述控制信号发送至外围电路中的后端负载，所述显示信号用于控制所述显示设备显示信息，所述反馈信号用于控制反馈设备反馈接收端能量获取状态至无线通信的发射端，所述控制信号用于控制所述后端负载是否取电启动。
  6. 根据权利要求5所述的装置，其中，所述控制模块还用于获取所述显示设备、所述反馈设备以及所述后端负载对应的耗电量，并获取所述储能模块的充电量，根据所述耗电量以及所述充电量控制所述显示设备、所述反馈设备以及所述后端负载是否取电启动。
  7. 根据权利要求1所述的装置，其中，所述功分模块包括依次连接的信号接收接口、可调功分单元以及阻抗匹配单元，所述信号接收接口接收整流后的信号，所述可调功分单元将所述整流后的信号功分为基带信号和直流能量，并且调整所述基带信号和所述直流能量的配比。
  8. 根据权利要求1所述的装置，其中，所述功分模块包括信号接收接口、第一可调电阻、第二可调电阻以及第三可调电阻；
    所述第一可调电阻的一端与所述信号接收接口连接，所述第一可调电阻的另一端分别与所述第二可调电阻的一端以及所述第三可调电阻的一端连接，所述第二可调电阻的另一端与所述储能模块连接，所述第三可调电阻的另一端接地；
    所述信号接收接口接收所述整流后的信号，所述第一可调电阻以及所述第二可调电阻将所述整流后的信号功分为基带信号和直流能量，所述基带信号和所述直流能量的配比与所述第一可调电阻以及所述第二可调电阻的阻值相关。
  9. 根据权利要求8所述的装置，其中，所述功分模块还包括二极管，所述第一可调电阻通过所述二极管与所述储能模块连接。
  10. 根据权利要求1所述的装置，其中，当所述储能模块的电压不小于第二预定值时，所述控制模块控制所述外围电路中的显示设备和反馈设备从所述储能模块取电工作，所述第二预定值大于所述预设启动电压。
  11. 根据权利要求5所述的装置，其中，所述储能模块分别与所述控制模块、所述显示设备和所述反馈设备连接，并且所述储能模块的能量分别供应到所述控制模块、所述显示设备和所述反馈设备。
  12. 根据权利要求5所述的装置，其中，所述反馈信号包括所述接收端的接收信号的电压值和/或信噪比，当所述电压值或所述信噪比低于第三预定值时，使所述发射端调整发射方式或改变发射端中发射机的位置。
  13. 根据权利要求4所述的装置，其中，所述升压芯片的周围设置有升压外围电路，所述升压外围电路用于控制升压停止阈值和/或升压输出阈值。
  14. 一种无线接收链路系统，其中，包括依次连接的接收组件、整流组件以及如权利要求1-13任意一项所述的信能复用接收装置。
PCT/CN2021/141649 2021-06-18 2021-12-27 信能复用接收装置与无线接收链路系统 Ceased WO2022262249A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110675315.6A CN113258949B (zh) 2021-06-18 2021-06-18 信能复用接收装置与无线接收链路系统
CN202110675315.6 2021-06-18

Publications (1)

Publication Number Publication Date
WO2022262249A1 true WO2022262249A1 (zh) 2022-12-22

Family

ID=77188570

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/141649 Ceased WO2022262249A1 (zh) 2021-06-18 2021-12-27 信能复用接收装置与无线接收链路系统

Country Status (2)

Country Link
CN (1) CN113258949B (zh)
WO (1) WO2022262249A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115987323A (zh) * 2022-12-29 2023-04-18 山东有人物联网股份有限公司 485自收发电路及其控制方法、设备、存储介质
CN117939424A (zh) * 2023-08-22 2024-04-26 南方电网数字电网研究院股份有限公司 射频供能无线感知装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117938184B (zh) * 2024-03-21 2024-06-04 华南理工大学 一种基于双稳态锁存器及定时控制的无线携能接收装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106992813A (zh) * 2017-02-16 2017-07-28 广东顺德中山大学卡内基梅隆大学国际联合研究院 一种低成本的自适应无线信息与能量复用传输系统
US20180026820A1 (en) * 2016-07-20 2018-01-25 Research & Business Foundation Sungkyunkwan University Simultaneous wireless information and power transmission method, and transmission apparatus and reception apparatus using the same
CN108923800A (zh) * 2018-09-18 2018-11-30 安顺迪讯科技有限公司 一种无线携能通信系统及方法
US20190089207A1 (en) * 2017-09-20 2019-03-21 Research & Business Foundation Sungkyunkwan University Wireless power transfer apparatus, wireless power receiving apparatus, wireless power transfer method, wireless power receiving method, wireless power transfer system using dual mode and recording medium thereof
CN111383605A (zh) * 2018-12-28 2020-07-07 南京启纬智芯微电子有限公司 无源显示装置、通信方法、有源电子终端及存储介质
CN111465056A (zh) * 2020-04-07 2020-07-28 电子科技大学 一种基于携能通信技术的环境感知系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101447120A (zh) * 2008-12-23 2009-06-03 天津大学 基于无线射频识别的零待机功耗遥控系统和遥控方法
CN101882968B (zh) * 2010-06-25 2013-12-25 电子科技大学 基于oofdm的无源光网络接入系统的时间同步方法
CN103633659B (zh) * 2013-12-11 2016-09-28 北京华电天仁电力控制技术有限公司 无直流电流传感器的储能变流器充放电控制系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180026820A1 (en) * 2016-07-20 2018-01-25 Research & Business Foundation Sungkyunkwan University Simultaneous wireless information and power transmission method, and transmission apparatus and reception apparatus using the same
CN106992813A (zh) * 2017-02-16 2017-07-28 广东顺德中山大学卡内基梅隆大学国际联合研究院 一种低成本的自适应无线信息与能量复用传输系统
US20190089207A1 (en) * 2017-09-20 2019-03-21 Research & Business Foundation Sungkyunkwan University Wireless power transfer apparatus, wireless power receiving apparatus, wireless power transfer method, wireless power receiving method, wireless power transfer system using dual mode and recording medium thereof
CN108923800A (zh) * 2018-09-18 2018-11-30 安顺迪讯科技有限公司 一种无线携能通信系统及方法
CN111383605A (zh) * 2018-12-28 2020-07-07 南京启纬智芯微电子有限公司 无源显示装置、通信方法、有源电子终端及存储介质
CN111465056A (zh) * 2020-04-07 2020-07-28 电子科技大学 一种基于携能通信技术的环境感知系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115987323A (zh) * 2022-12-29 2023-04-18 山东有人物联网股份有限公司 485自收发电路及其控制方法、设备、存储介质
CN117939424A (zh) * 2023-08-22 2024-04-26 南方电网数字电网研究院股份有限公司 射频供能无线感知装置

Also Published As

Publication number Publication date
CN113258949A (zh) 2021-08-13
CN113258949B (zh) 2021-11-02

Similar Documents

Publication Publication Date Title
WO2022262249A1 (zh) 信能复用接收装置与无线接收链路系统
RU2735154C1 (ru) Система, устройство и способ беспроводной зарядки и заряжаемое устройство
KR102280579B1 (ko) 충전 회로, 이를 포함하는 충전 시스템 및 무선전력 수신기
CN106849387B (zh) 一种无线充电发射装置及其智能充电输入和输出方法
EP3742576B1 (en) Wireless charging receiving device and mobile terminal
KR20170134575A (ko) 어댑터 및 충전 제어 방법
JP2009112155A (ja) 遠隔電力制御システムおよび電源タップ
CN106100858B (zh) 一种标准poe与强制非标poe一体化受电电源电路
CN102176635A (zh) 安全监测数据自动采集装置及其供电方法和供电装置
JP4413244B2 (ja) 無線通信装置、無線通信装置の給電方法
EP4042541A1 (en) Wireless power transfer
CN206673710U (zh) 一种无线充电发射装置
CN106972936A (zh) 一种可调poe供电电压的系统及方法
EP3278439B1 (en) Constant on-time (cot) control in isolated converter
US12587026B2 (en) Dynamically selectable power and charging configurations
CN113098550A (zh) 电表及其无线通讯模块连接电路
US10817038B2 (en) Data communication device and system
US20230283113A1 (en) Power receiving device
CN118972186B (zh) 一种多路以太网供电装置
US12149113B2 (en) Dynamically selectable power configurations
CN113949392B (zh) 无线供电装置、无线接收装置和无线传输组件
CN214755607U (zh) 一种充电器
CN222620702U (zh) 电源电路及电源设备
CN223007570U (zh) 一种高可靠应急广播终端
CN216086267U (zh) 无线供电装置及电子设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21945825

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21945825

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 11/07/2024)

122 Ep: pct application non-entry in european phase

Ref document number: 21945825

Country of ref document: EP

Kind code of ref document: A1