Dual power supply device and method based on feeder transmission

Abstract

The application discloses a dual-power supply device and method based on feeder transmission, which comprises a device end device and an antenna end device. The device end device comprises a first power supply interface and a second power supply interface. The first power supply interface is used for connecting a first power supply to supply power for the device end device. The second power supply interface is used for connecting a second power supply. The antenna end device is used for selecting the first power supply or the second power supply according to the type of the connected antenna, and supplying power for the antenna end device and the antenna through a feeder connected between the device end device and the antenna end device. The device can enhance the convenience of the power supply line connection to the antenna, and can also adapt to the power supply needs of different types of antennas, and has strong versatility.

Description

Technical Field

[0001] This invention belongs to the field of antenna technology, and in particular relates to a dual-power supply device and method based on feeder transmission. Background Technology

[0002] In the prior art, antennas include active antennas and passive antennas, as well as transceiver antennas and single-receiver / single-transmitter antennas. Due to the diversity of antenna types and antenna operating states, their corresponding power consumption is not the same. Therefore, the power supply device for the antenna needs to be of various types depending on the antenna type.

[0003] Furthermore, in existing technologies, the antenna is powered by a separate power line, while the antenna also requires additional feeder cables to transmit radio frequency signals. As a result, there are multiple cables connecting the antenna and communication equipment, leading to complex wiring connections and higher costs. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a dual power supply device and method based on feeder transmission, which solves the problems of poor versatility and complex circuit connection of antenna power supply devices in the prior art.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is to provide a dual power supply device based on feeder transmission, including a device-end device and an antenna-end device. The device-end device includes a first power interface and a second power interface. The first power interface is used to connect a first power source to supply power to the device-end device, and the second power interface is used to connect a second power source. Depending on the type of antenna to be connected to the antenna-end device, the first power source or the second power source is selected. Power is supplied to the antenna-end device and the antenna through the feeder connected between the device-end device and the antenna-end device.

[0006] Preferably, the device-side device includes a selection switch, the two input terminals of which are electrically connected to the first power interface and the second power interface, respectively, and its output terminal is electrically connected to the first power supply module of the device-side device; the first power supply module is used to combine the power supply and radio frequency signals and then transmit them through the feeder.

[0007] Preferably, the selector switch is a relay, and the device-side device further includes a first communication conversion module. A first power interface is electrically connected to the first communication conversion module for supplying power from the first power source to the first communication conversion module. The first communication conversion module is also electrically connected to the control terminal of the relay.

[0008] Preferably, a first duplexer is connected in series between the first communication conversion module and the first power supply module.

[0009] Preferably, the antenna end device includes a second feeding module for splitting the power supply and radio frequency signal, wherein the power supply is transmitted to the power supply unit, which further splits the signal, one path for supplying power to the antenna end device and the other path for supplying power to the antenna.

[0010] Preferably, the antenna end device further includes a second communication conversion module, and a second duplexer is connected in series between the second communication conversion module and the second power supply module.

[0011] Preferably, the first communication conversion module and the second communication conversion module have the same circuit composition, both including a processor and a wireless chip connected in series, and both are used to convert radio frequency signals and digital baseband signals.

[0012] The present invention also provides a dual power supply method based on feeder transmission, comprising the following steps:

[0013] Between the terminal equipment and the antenna, there are equipment-side devices, feed lines and antenna-side devices connected in series;

[0014] Connect the first power source and turn on the first power source to supply power to the device at the equipment end.

[0015] When the antenna type is known, the device controls the first power supply or the second power supply and supplies power to the antenna device and the antenna through the feed line connected between the device and the antenna.

[0016] When the antenna type is unknown, the device controls the first power supply to supply power to the antenna device and the antenna through the feeder connecting the device and the antenna device. After a delay, if the device receives antenna type information from the antenna device, it controls the first power supply or the second power supply to supply power according to the antenna type. After a delay, if the device does not receive antenna type information from the antenna device, it switches to the second power supply.

[0017] Preferably, after a delay, if the device receives antenna type information from the antenna device, the method includes:

[0018] After the antenna terminal device and antenna power supply are working normally, the antenna sends antenna monitoring information to the antenna terminal device through the antenna monitoring interface;

[0019] The second communication conversion module in the antenna end device converts the antenna monitoring information into radio frequency signals, which are then transmitted to the equipment end device via the feed line after passing through the second duplexer and the second feed module of the antenna end device.

[0020] In the device, the radio frequency signal passes through the first power supply module and the first duplexer of the device and is then received and demodulated by the first communication conversion module of the device to recover the antenna monitoring information, which includes antenna type information.

[0021] Preferably, if the device does not receive antenna type information from the antenna device after a delay, the method includes:

[0022] After the device-side device controls the first power supply to supply power to the antenna-side device and the antenna, the processor in the first communication conversion module starts timing. When the timing duration is equal to or greater than the set duration threshold, if the first communication conversion module does not receive the radio frequency signal and does not obtain the antenna monitoring information, it is determined that the first power supply to supply power to the antenna-side device and the antenna has failed.

[0023] The beneficial effects of this invention are as follows: This invention discloses a dual-power supply device and method based on feeder transmission, including a device-side device and an antenna-side device. The device-side device includes a first power interface and a second power interface. The first power interface is used to connect a first power source to supply power to the device-side device, and the second power interface is used to connect a second power source. The antenna-side device is used to connect to an antenna of a specific type, selecting either the first or second power source. Power is supplied to the antenna-side device and the antenna through a feeder connecting the device-side device and the antenna-side device. This device enhances the convenience of connecting the antenna power supply line and can adapt to the power supply needs of different types of antennas, exhibiting strong versatility. Attached Figure Description

[0024] Figure 1 This is a schematic diagram illustrating the principle of an embodiment of the dual power supply device based on feeder transmission according to the present invention.

[0025] Figure 2 This is a schematic diagram of the equipment end device composition in another embodiment of the dual power supply device based on feeder transmission of the present invention;

[0026] Figure 3 This is a schematic diagram of the antenna end device in another embodiment of the dual power supply device based on feeder transmission of the present invention.

[0027] Figure 4 This is a circuit diagram of the power supply unit in the antenna end device of another embodiment of the dual power supply device based on feeder transmission of the present invention.

[0028] Figure 5 This is a flowchart of an embodiment of the dual power supply method based on feeder transmission of the present invention. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0030] It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0031] The embodiments will now be described in detail with reference to the accompanying drawings.

[0032] Figure 1 This is an embodiment of a dual-power supply device based on feeder transmission, consisting of... Figure 1 As can be seen, the dual power supply device based on feeder transmission includes a device-side device 1 and an antenna-side device 2. The device-side device 1 includes a first power interface 101 and a second power interface 102. The first power interface 101 is used to connect a first power source to supply power to the device-side device 1, and the second power interface 102 is used to connect a second power source to supply power to the device-side device 1. The power supply type of the device-side device 1 is selected according to the type of antenna to which the antenna-side device 2 is connected, using either the first power source or the second power source. Then, the feeder 3 connecting the device-side device 1 and the antenna-side device 2 supplies power to both the antenna-side device 2 and the antenna.

[0033] exist Figure 1 In the above, feeder 3 is used not only for transmitting radio frequency communication signals, but also for power supply transmission, thus having the dual functions of power supply and radio frequency signal transmission. Figure 1 The illustrated embodiment is adaptable to different antenna types, including antennas with different requirements for power supply, radio frequency bands, etc., and can select different power supplies according to different antenna types. Therefore, this device can adapt to a variety of antenna types, thus possessing versatility and eliminating the need for customized power supply devices based on different antenna types, as is the case in the prior art.

[0034] Furthermore, the selection of the first power supply or the second power supply is made by selecting switch 13. This selection switch 13 can be a manually controlled mechanical switch or an electronically controlled electrical switch, such as a relay.

[0035] Both the first power interface 101 and the second power interface 102 are preferably DC power interfaces. The first power is a low-voltage DC power, such as 5V or 3.3V, and the second power is a high-voltage DC power, such as 9V, 12V, or 24V, which is higher than the voltage of the first power.

[0036] Preferably, the first power supply directly powers the functional unit 11 in the device 1 through the first power interface 101, that is, it powers the device 1. Therefore, even when the second power supply is selected to power the antenna device 2, the device 1 is still powered by the first power supply, so the device 1 is always powered by the first power supply. The functional unit 11 here includes a control unit, a communication unit, a signal conversion unit, etc., used to perform functions such as signal conversion and control.

[0037] exist Figure 1 In this configuration, the device-side unit 1 also includes a first feed module 12, used to combine the power supply and radio frequency signals before transmitting them via the feed line 3. Correspondingly, the antenna-side unit 2 also includes a second feed module 22, used to split the power supply and radio frequency signals. The power supply portion is transmitted to the power supply unit 23 after splitting. The power supply unit 23 splits the power supply from the device-side unit 1 transmitted via the feed line 3, with one path connected to the functional unit 21 in the antenna-side unit 2, thus powering the antenna-side unit 2. The other path is output to power the antenna. Similarly, the functional unit 21 is used to perform signal conversion, control, and other functions.

[0038] Preferably, it should be noted that different types of antennas have different power consumption, resulting in significant differences in current consumption by the antenna when operating under the same supply voltage. For example, antennas that receive satellite navigation signals are typically single-receiver antennas with low power consumption, which can be powered by the aforementioned first power supply. However, for satellite navigation signal antennas with anti-interference capabilities, which can achieve zero-adjustment reception of radio waves in a specific direction, the power consumption is higher, and such anti-interference antennas require a second power supply.

[0039] Since power transmission is based on a feeder, the feeder is significantly longer than the power supply line near the antenna. Furthermore, the feeder has characteristic impedance. When the antenna operates with a large current, a significant amount of voltage drop loss from the power supply to the device is consumed by the feeder. Therefore, the voltage drop reaching the antenna is significantly lower than the voltage of the device itself. For example, if the device's power supply voltage is 5V, a large current might result in a 2V drop after transmission through the feeder, reducing the voltage to only 3V at the antenna. This voltage reduction will cause the internal power supply voltage of the antenna to fall short of requirements, and consequently, the power supply voltage to the antenna will also be insufficient.

[0040] Therefore, a second power supply with a higher supply voltage is selected here. For example, under the same conditions, the second power supply voltage is 9V or 12V. Even if a large supply current flows through the feeder, the voltage reaching the antenna device after the voltage drop through the feeder will still be sufficient for the antenna device itself and the antenna it supplies. For example, 9V minus 2V equals 7V. This 7V DC voltage can be converted by a DC-DC converter to obtain the required 5V for regulated power supply.

[0041] exist Figure 1 Based on the illustrated embodiment, Figure 2 A preferred embodiment of the device-side apparatus is further provided. Figure 3 A preferred embodiment of the antenna end device is further provided.

[0042] Preferred, such as Figure 2 As shown, the device 1 includes a relay 13, and the functional unit 11 specifically corresponds to the first communication conversion module 11. The two input terminals of the relay 13 are used to connect to a first power supply and a second power supply, respectively, and are therefore electrically connected to the first power interface 101 and the second power interface 102. The control terminal of the relay 13 is electrically connected to the first communication conversion module 11, which selects whether the relay 13 is connected to the first or second power supply. The output terminal of the relay 13 is electrically connected to the first power supply module 12, through which power is transmitted to the feeder. Additionally, the first power interface 101 is also electrically connected to the first communication conversion module 11, allowing the first power supply to power the first communication conversion module 11. This power supply path is not controlled by the relay 13 and is an independent power supply from the first power supply to the first communication conversion module 11.

[0043] Furthermore, in Figure 2 In this circuit, the first power supply connected to the first power interface 101 provides power to one input terminal of the relay 13 after passing through the first voltage regulator 151. The first voltage regulator 151 is preferably a low dropout regulator (LDO). The voltage of the first power supply is 5.5V, and it is regulated to 5V by the first voltage regulator 151.

[0044] The first power supply connected to the first power interface 101 supplies power to the first communication conversion module 11 after passing through the second voltage regulator 152. The second voltage regulator 152 is preferably a low dropout regulator (LDO). The voltage of the first power supply is 5.5V, which is regulated to 3.3V by the second voltage regulator 152.

[0045] Preferably, the first communication conversion module 11 includes a processor. When the processor determines that the antenna end device and the antenna need to be powered by the second power supply, it controls the relay 13 to cut off the power supply from the first power supply and connect the second power supply to power the first feed module 12.

[0046] Furthermore, the first communication conversion module 11 also includes a wireless chip electrically connected to the processor, and an attenuator electrically connected to the wireless chip. The attenuator primarily attenuates a high-frequency radio frequency signal from the duplexer, preferably in the 2.4 GHz band. The wireless chip demodulates this high-frequency radio frequency signal to obtain antenna monitoring information, which is then transmitted to the processor. The processor then controls the device based on the antenna monitoring information. For example, if the antenna monitoring information includes antenna type information, the processor can control the relay accordingly based on this antenna type information.

[0047] Preferably, after power-on, since the first power supply defaults to supplying power to the antenna device and the antenna, if the wireless chip does not receive a high-frequency radio frequency signal after a set time range, the processor will not receive any antenna monitoring information. In this case, the processor determines that the antenna is not powered on and therefore controls the control relay to switch the first power supply to the second power supply. This also ensures that the antenna type can be identified and powered on.

[0048] The processor can further transmit the received antenna monitoring information to other monitoring devices via digital interface 103. Preferably, the first communication conversion module 11 can not only receive high-frequency radio frequency signals from the duplexer, but also modulate the baseband signal generated by the processor into a high-frequency radio frequency signal via the wireless chip, and then transmit it to the antenna end device via attenuator, first duplexer 14, and feeder 3. This achieves bidirectional signal conversion and transmission.

[0049] Preferably, the processor is a single-chip microcontroller MSP430FR2433IRGER and the wireless chip is SI24R1, both of which are small single-chip devices that occupy little space.

[0050] Preferably, the first duplexer 14 includes a first splitter, a second splitter, and a combiner. The first splitter is electrically connected to the first communication conversion module 11, and the second splitter is electrically connected to the first communication RF signal interface 104 for transmitting communication RF signals received by the antenna. The combiner is electrically connected to the first power supply module 12. Preferably, the first splitter outputs a high-frequency RF signal, such as a 2.4GHz RF signal, and the second splitter outputs a low-frequency RF signal, such as a 1.6GHz RF signal. Furthermore, the two frequency bands are spaced 0.8GHz apart, are frequency-division multiplexed, and have good frequency isolation, preventing mutual frequency interference. Preferably, the first duplexer 14 uses the DPX252500DT-5217A1 device, which is mainly used for splitting 1.6GHz and 2.4GHz signals. This device model is also applicable to the second duplexer 24.

[0051] Preferably, the first power supply module 12 includes a first inductor 121, a first capacitor 122, and a second capacitor 123. The two ends of the first inductor 121 are electrically connected to the first capacitor 122 and the second capacitor 123, respectively. The connection point between the first inductor 121 and the first capacitor 122 is electrically connected to the control relay 13. The other end of the first capacitor 122 is grounded. The connection point between the first inductor 121 and the second capacitor is electrically connected to the first feeder terminal 105. The other end of the second capacitor 123 is electrically connected to the combining terminal of the first duplexer 14. The first power supply module 12 is used for DC power supply input and RF signal input, so that the first feeder terminal 105 can simultaneously transmit RF signals and power supply to the feeder. The first inductor is a 0908SQ-23NJLC air-core inductor from WireArt Company, with a saturation current of 4A.

[0052] exist Figure 3 In the antenna end device 2, there is a power supply unit 23, which further includes a voltage detection circuit 231 and a DC-DC conversion circuit 232. The voltage detection circuit 231 is used to detect the voltage of the power supply from the feeder 3. When the power supply voltage is detected to be lower than the set voltage threshold, the DC-DC conversion circuit 232 cannot supply power to the active antenna.

[0053] Preferably, the DC-DC conversion circuit 232 further includes another voltage conversion circuit, which directly converts the voltage of the power supply from the feeder 3 before supplying power to the second communication conversion module 21. That is, for the second communication conversion module 21, regardless of whether the device 1 is powered by the first power supply or the second power supply—for example, even if the second power supply is 9V, after the voltage drop through the feeder it becomes 7V. The DC-DC conversion circuit 232 can further convert the 7V to 3.3V to supply power to the second communication conversion module 21. Conversely, when the first power supply is 5V, it converts the 5V to 3.3V to supply power to the second communication conversion module 21. Therefore, power to the second communication conversion module 21 can be maintained at all times.

[0054] However, for powering an active antenna, a voltage detection circuit 231 is required to determine whether power can be supplied to the antenna. Specifically, as shown in... Figure 4 As shown, Figure 4 This is a schematic diagram of the circuit structure of the power supply unit 23 according to an embodiment of the present invention. The DC-DC conversion circuit includes a chip MP2225GJ. The chip MP2225GJ includes an input pin Vin, a control pin EN, a switch pin SW, and a boot pin BST. A series capacitor and a conversion circuit are connected between the switch pin SW and the boot pin BST. The conversion circuit includes a third inductor L3, a fifth capacitor C5, a sixth capacitor C6, a second resistor R2, and a light-emitting diode D2. One end of the third inductor L3 is connected to the series capacitor, and the other end of the third inductor L3 is connected to the positive terminals of the fifth capacitor C5, the sixth capacitor C6, and the light-emitting diode D2. The negative terminal of the light-emitting diode D2 is connected to one end of the second resistor R2. The other ends of the fifth capacitor C5 and the sixth capacitor C6 are connected to the other end of the second resistor R2 and then grounded. The conversion circuit determines the required stable voltage by performing energy conversion through the circuit composed of inductors and capacitors. Here, the designed stable voltage of the chip MP2225GJ is 5.4V.

[0055] The voltage detection circuit 231 in the power supply unit 23 is also based on the MP2225GJ chip. It includes a Zener diode D1 and a first resistor R1 connected in series. The cathode of the Zener diode D1 is connected to the second power supply module 22, from which DC power is supplied. The anode of the Zener diode D1 is connected to the first resistor R1 and the control pin EN of the MP2225GJ chip. The other end of the first resistor R1 is grounded, and the input pin Vin is also connected to the second power supply module 22, from which DC power is supplied. When the supply voltage input to the Zener diode D1 is less than its stable voltage, the Zener diode D1 is in the off state, the control pin EN is low or zero voltage, and the MP2225GJ chip does not work. When the supply voltage input to the cathode of the Zener diode D1 is greater than its stable voltage, the control pin EN is high voltage, and the MP2225GJ chip works normally. At this time, the MP2225G chip can perform DC-DC conversion on the input supply voltage at the input pin Vin, so that the MP2225G chip outputs a stable voltage through the output pin FB. The preferred design value of this voltage is 5.4V, which is used to power the active antenna.

[0056] Furthermore, in Figure 3 The system includes a second power supply module 22, which has the same circuit composition as the first power supply module 12. This includes a second inductor 221, a third capacitor 222, and a fourth capacitor 223. The two ends of the second inductor 221 are electrically connected to the third capacitor 222 and the fourth capacitor 223, respectively. The connection between the second inductor 221 and the third capacitor 222 is electrically connected to the input terminal of the power supply unit 23. The other end of the third capacitor 222 is grounded. The connection between the second inductor 221 and the fourth capacitor 223 is electrically connected to the second feed line terminal 205. The other end of the fourth capacitor 223 is electrically connected to the combining terminal of the second duplexer 24. The second power supply module 22 is used for DC power supply input and RF signal input, so that RF signals and power supply can be transmitted simultaneously from the feed line 3 at the second feed line terminal 205.

[0057] Preferably, the second duplexer 24 is the same as the first duplexer 14, also including a third splitter, a fourth splitter, and a second combiner. The third splitter is electrically connected to the second communication conversion module 21, and the fourth splitter is electrically connected to the second communication RF signal interface 204 for transmitting communication RF signals received by the antenna. The second combiner is electrically connected to the second power supply module 22. Preferably, the third splitter outputs a high-frequency RF signal, such as a 2.4 GHz RF signal, and the fourth splitter outputs a low-frequency RF signal, such as a 1.6 GHz RF signal. Furthermore, the frequency bands of these two signals are 0.8 GHz apart, and they are frequency-division multiplexed, providing good frequency isolation and preventing frequency interference.

[0058] Preferably, the second duplexer 24 and the first duplexer 14 use the TDK DPX252500DT-5217A1 chip.

[0059] Furthermore, the second communication conversion module 21 is identical to the first communication conversion module 11, including a processor, a wireless chip electrically connected to the processor, and an attenuator electrically connected to the wireless chip. The processor receives monitoring information from the antenna via the antenna monitoring interface 203, including antenna type information, as well as other antenna characteristics and operating status information. This information is primarily used for real-time monitoring of the antenna's characteristics and operating status, and is generated by the digital baseband signal from the antenna. Therefore, when transmission via the feeder is required, it needs to be modulated into a radio frequency (RF) signal. The wireless chip modulates the antenna monitoring information into an RF signal, which is then transmitted to the first splitter of the second duplexer 24 after passing through the attenuator. Correspondingly, this RF signal is received and demodulated by the first communication conversion module 11 in the device to recover the antenna monitoring information.

[0060] Preferably, the processor uses TI's MSP430FR2433IRGER, and the wireless chip 2012 uses Nanjing Zhongke Micro's SI24R1 wireless transceiver chip.

[0061] Based on the same concept, the present invention also provides a dual-power supply method based on feeder transmission, such as... Figure 5 As shown, the steps include:

[0062] S1: Between the terminal equipment and the antenna, there are equipment-side devices, feeders and antenna-side devices connected in series;

[0063] S2: Connect the first power supply and turn on the first power supply to supply power to the device at the equipment end;

[0064] S31: When the antenna type is known, the device controls the first power supply or the second power supply and supplies power to the antenna device and the antenna through the feeder connected between the device and the antenna.

[0065] S32: When the antenna type is unknown, the device controls the first power supply to supply power to the antenna end device and the antenna through the feeder connected between the device and the antenna end device; if the device receives antenna type information from the antenna end device, it controls the first power supply or the second power supply to supply power according to the antenna type; after a delay, if the device does not receive antenna type information from the antenna end device, it switches to the second power supply.

[0066] Clearly, this method utilizes the aforementioned device-side and antenna-side devices to achieve convenient and efficient power supply to the antenna. The first power source consistently supplies power to the device-side device, ensuring its normal operation. Whether the first power source supplies power to the antenna-side device and the antenna, and whether the second power source supplies power to the antenna-side device and the antenna, depends on whether the antenna type is known.

[0067] If the antenna type is known, the device can directly control either the first or second power supply to power the antenna and antenna via the feeder connecting the device and the antenna. If the antenna type is unknown, the device will initially supply power via the first power supply. If the first power supply is functioning correctly, the device will receive antenna type information from the antenna and antenna, indicating that the antenna is working properly; otherwise, no antenna type information will be transmitted. If, after a certain period of time, the device does not receive antenna type information from the antenna and antenna, it indicates that the power supply to the antenna and antenna is abnormal. In this case, the device will switch to the second power supply, thus achieving automatic power switching. Typically, the voltage of the second power supply is higher than that of the first power supply.

[0068] Preferably, in step S32, if the device receives antenna type information from the antenna device, the method includes:

[0069] After the antenna terminal device and antenna power supply are working normally, the antenna sends antenna monitoring information to the antenna terminal device through the antenna monitoring interface;

[0070] The second communication conversion module in the antenna end device converts the monitoring information of the antenna into radio frequency signals, which are then transmitted to the equipment end device via the feed line after passing through the second duplexer and the second feed module.

[0071] In the device, the radio frequency signal is received and demodulated by the first communication conversion module after passing through the first power supply module and the first duplexer to recover the antenna monitoring information.

[0072] Preferably, in step S32, if the device-side device does not receive antenna type information from the antenna-side device after a delay, the method includes:

[0073] After the device-side device controls the first power supply to supply power to the antenna-side device and the antenna, the processor in the first communication conversion module starts timing. When the timing duration is equal to or greater than the set duration threshold, if the first communication conversion module does not receive a radio frequency signal and does not obtain antenna monitoring information, it is determined that the first power supply has failed to supply power to the antenna-side device and the antenna.

[0074] Therefore, this invention discloses a dual-power supply device and method based on feeder transmission, including a device-side device and an antenna-side device. The device-side device includes a first power interface and a second power interface. The first power interface is used to connect a first power source to supply power to the device-side device, and the second power interface is used to connect a second power source. The antenna-side device is used to connect to an antenna of a specific type, selecting either the first or second power source. Power is supplied to the antenna-side device and the antenna through a feeder connecting the device-side device and the antenna-side device. This device enhances the convenience of connecting the antenna power supply line and can adapt to the power supply needs of different types of antennas, exhibiting strong versatility.

[0075] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A dual-power supply device based on feeder transmission, characterized in that, The device includes a device-side unit and an antenna-side unit. The device-side unit includes a first power interface and a second power interface. The first power interface is used to connect a first power source to power the device-side unit, and the second power interface is used to connect a second power source. Depending on the type of antenna to which the antenna-side unit is connected, the first power source or the second power source is selected. Power is supplied to the antenna-side unit and the antenna through a feed line connected between the device-side unit and the antenna-side unit. The device includes a selection switch, the two input terminals of which are electrically connected to the first power interface and the second power interface, respectively, and its output terminal is electrically connected to the first power supply module of the device. The first power supply module is used to combine the power supply and radio frequency signals and then transmit them through the feeder. The device further includes a first communication conversion module, and a first duplexer is connected in series between the first communication conversion module and the first power supply module. The first duplexer includes a first branch terminal, a second branch terminal, and a combiner terminal. The first branch terminal is electrically connected to the first communication conversion module, the second branch terminal is electrically connected to the first communication radio frequency signal interface, and the combiner terminal is electrically connected to the first power supply module. The first branch terminal outputs a high-frequency radio frequency signal, and the second branch terminal outputs a low-frequency radio frequency signal. The signals of these two frequency bands have a frequency band interval.

2. The dual power supply device based on feeder transmission according to claim 1, characterized in that, The selection switch is a relay, and the first power interface is electrically connected to the first communication conversion module to supply power from the first power source to the first communication conversion module; the first communication conversion module is also electrically connected to the control terminal of the relay.

3. The dual power supply device based on feeder transmission according to claim 2, characterized in that, The antenna end device includes a second power supply module for splitting the power supply and radio frequency signal, wherein the power supply is transmitted to the power supply unit, which further splits the signal, one path for supplying power to the antenna end device and the other path for supplying power to the antenna.

4. The dual power supply device based on feeder transmission according to claim 3, characterized in that, The antenna end device also includes a second communication conversion module, and a second duplexer is connected in series between the second communication conversion module and the second power supply module.

5. The dual power supply device based on feeder transmission according to claim 4, characterized in that, The first communication conversion module and the second communication conversion module have the same circuit composition, both including a processor and a wireless chip connected in series, and both are used to convert radio frequency signals and digital baseband signals.

6. A dual-power supply method based on feeder transmission, characterized in that: Between the terminal device and the antenna, a device-side device, a feeder line, and an antenna-side device are connected in series. The device-side device includes a selection switch, the two input terminals of which are electrically connected to a first power interface and a second power interface, respectively, and its output terminal is electrically connected to a first power supply module of the device-side device. The first power supply module is used to combine the power supply and radio frequency signals and then transmit them through the feeder line. The device further includes a first communication conversion module, and a first duplexer is connected in series between the first communication conversion module and the first power supply module. The first duplexer includes a first branch terminal, a second branch terminal, and a combiner terminal. The first branch terminal is electrically connected to the first communication conversion module, the second branch terminal is electrically connected to the first communication radio frequency signal interface, and the combiner terminal is electrically connected to the first power supply module. The first branch terminal outputs a high-frequency radio frequency signal, and the second branch terminal outputs a low-frequency radio frequency signal. The signals of these two frequency bands have a frequency band interval. Connect the first power source and turn on the first power source to supply power to the device. When the antenna type is known, the device controls the first power supply or the second power supply accordingly, and supplies power to the antenna device and the antenna through the feed line connected between the device and the antenna. When the antenna type is unknown, the device controls the first power supply to supply power to the antenna end device and the antenna through the feeder connected between the device and the antenna end device. After a delay, if the device receives antenna type information from the antenna device via the radio frequency signal of the high-frequency band, it controls the first power supply or the second power supply according to the antenna type information. If, after a delay, the device fails to receive the antenna type information from the antenna device via the high-frequency radio frequency signal, it switches to the second power supply.

7. The dual-power supply method based on feeder transmission according to claim 6, characterized in that, After a delay, if the device receives the antenna type information from the antenna terminal via the radio frequency signal in the high-frequency band, the method includes: After the antenna terminal device and the antenna power supply are working normally, the antenna sends the antenna monitoring information to the antenna terminal device through the antenna monitoring interface; The second communication conversion module in the antenna end device converts the monitoring information of the antenna into the radio frequency signal of the high frequency band, and after passing through the second duplexer and the second feed module of the antenna end device, it is transmitted to the device end device via the feed line. In the device-side apparatus, the high-frequency radio frequency signal passes through the first power supply module and the first duplexer of the device-side apparatus, and is then received and demodulated by the first communication conversion module of the device-side apparatus to recover the monitoring information of the antenna, wherein the monitoring information includes the antenna type information.

8. The dual-power supply method based on feeder transmission according to claim 6, characterized in that, If, after a delay, the device fails to receive antenna type information from the antenna device via the high-frequency radio frequency signal, the method includes: After the device controls the first power supply to supply power to the antenna device and the antenna, the processor in the first communication conversion module starts timing. When the timing duration is equal to or greater than the set duration threshold, if the first communication conversion module does not receive the radio frequency signal of the high frequency band and does not obtain the monitoring information of the antenna, it is determined that the first power supply has failed to supply power to the antenna device and the antenna.

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