Backup battery in-place detection method in communication power supply system and communication power supply system

Abstract

The invention provides an in-situ detection method for a backup battery in a communication power supply system and the communication power supply system, and relates to the technical field of power electronics. And controlling the rectification unit to output a target voltage to an electric signal detection unit connected between the circuit on-off control unit and the backup battery, wherein the target voltage is lower than a rated voltage range of the backup battery. And then a first detection result of the electric signal detection unit is received, if the first detection result shows that the current value exists, it is determined that the backup battery is in place, and if the first detection result shows that the current value does not exist, it is determined that the backup battery is not in place. According to the method, voltage comparison does not need to be carried out through circuit hardware, whether the backup battery is in place or not can be judged only through software control logic, the judgment result error is small, the judgment condition is simple, and the problem that whether the backup battery is in place or not cannot be effectively detected in a communication power supply system is solved.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and in particular to a method for detecting the presence of a backup battery in a communication power supply system and the communication power supply system. Background Art

[0002] During the daily operation of communication equipment, when the mains power is cut off, the backup battery in the communication power supply system is usually used to supply power. Therefore, during actual use, it is necessary to detect whether the backup battery is installed, that is, whether the backup battery is in place.

[0003] At present, the existing backup battery in-place detection scheme is mainly implemented by voltage comparison through circuit hardware. This scheme has relatively harsh judgment conditions and large errors, and there is a problem that it cannot effectively detect whether the backup battery is in place.

[0004] Therefore, a method for detecting the presence of a backup battery in a communication power supply system is now provided. Summary of the invention

[0005] The present invention provides a method for detecting the presence of a backup battery in a communication power supply system and a communication power supply system, so as to solve the defects existing in the related art.

[0006] The present invention provides a method for detecting the presence of a backup battery in a communication power supply system, comprising: When a circuit on-off control unit connected between a rectifier unit and a backup battery in a communication power supply system is closed, the rectifier unit is controlled to output a target voltage to an electrical signal detection unit connected between the circuit on-off control unit and the backup battery; the target voltage is lower than a rated voltage range of the backup battery; A first detection result of the electrical signal detection unit is received. If the first detection result is that a current value exists, it is determined that the backup battery is in place. If the first detection result is that a current value does not exist, it is determined that the backup battery is not in place.

[0007] A method for detecting the presence of a backup battery in a communication power supply system according to the present invention further includes: When the circuit on-off control unit is disconnected, a second detection result of the electrical signal detection unit is received. If the second detection result is that the voltage value is within the rated voltage range, it is determined that the backup battery is in place; if the second detection result is that the voltage value is empty or is not within the rated voltage range, it is determined that the backup battery is not in place.

[0008] According to a method for detecting the presence of a backup battery in a communication power supply system provided by the present invention, the receiving of the second detection result of the electrical signal detection unit comprises: When the remaining power of the backup battery is greater than or equal to the preset power, the circuit on / off control unit is controlled to be disconnected.

[0009] According to a method for detecting the presence of a backup battery in a communication power supply system provided by the present invention, the controlling the rectifier unit to output a target voltage comprises: When the remaining power of the backup battery is less than the preset power, the circuit on / off control unit is controlled to be closed.

[0010] The present invention also provides a communication power supply system, comprising: a micro control unit, a rectifier unit, a circuit on-off control unit and an electrical signal detection unit; The micro control unit is connected to the rectifying unit, the circuit on-off control unit and the electrical signal detection unit respectively; The rectifying unit, the circuit on-off control unit and the electric signal detection unit are connected in sequence, and the electric signal detection unit is used to be connected to a backup battery; The micro control unit is used to execute the above-mentioned backup battery presence detection method in the communication power supply system.

[0011] A communication power supply system provided according to the present invention further includes a signal conversion unit; The signal conversion unit is connected to the rectification unit and the micro control unit; The signal conversion unit is used to convert the supply voltage output by the rectification unit into the required voltage of the micro control unit.

[0012] According to a communication power supply system provided by the present invention, the signal conversion unit includes a first conversion circuit and a second conversion circuit; The input end of the first conversion circuit is connected to the output end of the rectifier unit, the output end of the first conversion circuit is connected to the input end of the second conversion circuit, and the output end of the second conversion circuit is connected to the power supply end of the micro control unit; The first conversion circuit is used to convert the supply voltage into a first voltage; the first voltage is lower than the supply voltage; The second conversion circuit is used for converting the first voltage into a required voltage of the micro control unit.

[0013] According to a communication power supply system provided by the present invention, the circuit on-off control unit is a DC contactor, and the electrical signal detection unit is a shunt.

[0014] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, a method for detecting the presence of a backup battery in a communication power supply system as described in any one of the above is implemented.

[0015] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method for detecting the presence of a backup battery in a communication power supply system as described in any one of the above is implemented.

[0016] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the method for detecting the presence of a backup battery in a communication power supply system as described in any one of the above is implemented.

[0017] The present invention provides a method for detecting the presence of a backup battery in a communication power supply system and a communication power supply system. First, when a circuit on-off control unit connected between a rectifier unit and a backup battery in the communication power supply system is closed, the rectifier unit is controlled to output a target voltage to an electrical signal detection unit connected between the circuit on-off control unit and the backup battery, and the target voltage is lower than the rated voltage range of the backup battery. Thereafter, a first detection result of the electrical signal detection unit is received. If the first detection result is that there is a current value, it is determined that the backup battery is in place. If the first detection result is that there is no current value, it is determined that the backup battery is not in place. This method does not require voltage comparison through circuit hardware. The judgment of whether the backup battery is in place can be achieved only through software control logic. The judgment result has a small error and the judgment condition is simple, which solves the problem that the communication power supply system cannot effectively detect whether the backup battery is in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a flow chart of a method for detecting the backup battery in place in a communication power supply system provided by the present invention.

[0020] Figure 2 It is a structural schematic diagram of the communication power supply system provided by the present invention.

[0021] Figure 3 It is a structural schematic diagram of the communication power supply system provided by the present invention when the circuit on-off control unit is disconnected.

[0022] Figure 4 It is a structural schematic diagram of the communication power supply system provided by the present invention when the circuit on-off control unit is closed.

[0023] Figure 5It is a structural schematic diagram of the first conversion circuit in the communication power supply system provided by the present invention.

[0024] Figure 6 It is a structural schematic diagram of the second conversion circuit in the communication power supply system provided by the present invention.

[0025] Figure 7 It is a structural schematic diagram of a backup battery in-place detection device in a communication power supply system provided by the present invention.

[0026] Figure 8 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Since the existing solution of detecting the backup battery in place by comparing the voltage through circuit hardware has relatively harsh judgment conditions and large errors, it is impossible to effectively detect whether the backup battery is in place. An embodiment of the present invention provides a method for detecting the backup battery in place in a communication power supply system.

[0029] Figure 1 FIG. 1 is a flow chart of a method for detecting the presence of a backup battery in a communication power supply system provided in an embodiment of the present invention. Figure 1 As shown, the method includes: S1, when a circuit on-off control unit connected between a rectifier unit and a backup battery in a communication power supply system is closed, controlling the rectifier unit to output a target voltage; the target voltage is lower than a rated voltage range of the backup battery; S2, receiving a first detection result of an electrical signal detection unit connected between the circuit on-off control unit and the backup battery. If the first detection result is that a current value exists, it is determined that the backup battery is in place; if the first detection result is that no current value exists, it is determined that the backup battery is not in place.

[0030] Specifically, the backup battery presence detection method in the communication power supply system provided in the embodiment of the present invention is executed by a microcontroller unit (MCU), and the model of the microcontroller unit can be set as needed and is not specifically limited here.

[0031] First, step S1 is performed. In the communication power supply system, a microcontroller unit, a rectifier unit, a circuit on / off control unit, and an electrical signal detection unit may be included. The rectifier unit may be an AC / DC module, the circuit on / off control unit may be a switch, a relay, etc., and the electrical signal detection unit may be a current and voltage detection module.

[0032] like Figure 2 As shown, the micro control unit U1 can be connected to the rectifier unit 21 through a first control interface, and the first control interface includes a high level interface and a low level interface. The micro control unit U1 is connected to the circuit on-off control unit 22 through a second control interface, and the second control interface includes a positive control interface and a negative control interface. The micro control unit U1 is connected to the electrical signal detection unit 23 through a detection interface, and the detection interface includes a positive detection interface and a negative detection interface.

[0033] The rectifier unit 21 can be connected to the circuit on / off control unit 22 via the output bus BUS1, the circuit on / off control unit 22 can be connected to the electric signal detection unit 23 via the bus, and the electric signal detection unit 23 can be connected to the backup battery BAT via the output bus BUS2 of the backup battery. Here, the backup battery BAT can be a storage battery.

[0034] The microcontrol unit U1 can control the rectifier unit 21, the circuit on / off control unit 22 and the electric signal detection unit 23 respectively. The rectifier unit 21 is used to connect to the 220V AC mains and convert the AC mains into a DC voltage. The microcontroller unit U1 can control the rectifier unit 21 to output a power supply voltage, supply power to the microcontroller unit U1 and the load of the communication power system, and charge the backup battery BAT. Here, the load of the communication power system can be a communication device.

[0035] The circuit on-off control unit 22 is used to control the connection relationship between the rectifier unit 21 and the electrical signal detection unit 23. If the circuit on-off control unit 22 is closed, the rectifier unit 21 and the electrical signal detection unit 23 are connected. If the circuit on-off control unit 22 is disconnected, the rectifier unit 21 and the electrical signal detection unit 23 are not connected.

[0036] The load of the communication power supply system can be connected to the rectifier unit 21 and the electric signal detection unit 23 respectively. When the micro control unit U1 is in place with the backup battery BAT and the remaining power is greater than or equal to the preset power, the control circuit on-off control unit 22 is disconnected. Figure 3 As shown, the backup battery BAT and the rectifier unit 21 are controlled to jointly power the communication device; when the microcontroller unit BAT can be in place with the backup battery and the remaining power is less than the preset power, the control circuit on-off control unit 22 is closed, such as Figure 4As shown, the rectifier unit 21 is controlled to charge the backup battery BAT and supply power to the communication device at the same time.

[0037] Furthermore, when the backup battery BAT is detected in place, step S1 is first executed, and the micro control unit U1 controls the rectifier unit 21 to output a target voltage to the signal detection unit 23 when the circuit on / off control unit 22 is closed. The target voltage is lower than the rated voltage range of the backup battery BAT. If the backup battery BAT is 48V, the rated voltage range is 42V~58V.

[0038] If the backup battery BAT is in place, there is a voltage difference across the signal detection unit 23 and a current is generated.

[0039] If the backup battery BAT is not in place, although there is a voltage difference between the two ends of the signal detection unit 23, the circuit is not turned on and no current is generated.

[0040] Then, step S2 is executed to receive the first detection result of the electric signal detection unit 23. If the first detection result is that there is a current value, it can be determined that the backup battery BAT is in place. If the first detection result is that there is no current value, it can be determined that the backup battery BAT is not in place.

[0041] The method for detecting the presence of a backup battery in a communication power supply system provided in an embodiment of the present invention first controls the rectifier unit to output a target voltage to the electrical signal detection unit connected between the circuit on-off control unit and the backup battery in the communication power supply system when the circuit on-off control unit connected between the rectifier unit and the backup battery is closed, and the target voltage is lower than the rated voltage range of the backup battery. Thereafter, a first detection result of the electrical signal detection unit is received. If the first detection result is that there is a current value, it is determined that the backup battery is in place. If the first detection result is that there is no current value, it is determined that the backup battery is not in place. This method does not require voltage comparison through circuit hardware, and the judgment of whether the backup battery is in place can be achieved only through software control logic. The judgment result has a small error and the judgment condition is simple, which solves the problem of being unable to effectively detect whether the backup battery is in place in the communication power supply system.

[0042] On the basis of the above embodiments, the method for detecting the presence of a backup battery in a communication power supply system provided in an embodiment of the present invention further includes: S3, when the circuit on-off control unit is disconnected, receiving the second detection result of the electrical signal detection unit, if the second detection result is that the voltage value is within the rated voltage range, determining that the backup battery is in place, if the second detection result is that the voltage value is empty or not within the rated voltage range, determining that the backup battery is not in place.

[0043] Specifically, when the circuit on-off control unit 22 is disconnected, the microcontroller U1, the output bus BUS1 of the rectifier unit 21 and the output bus BUS2 of the backup battery BAT are not conductive, and the second detection result of the electrical signal detection unit 23 can be received through the detection interface. If the second detection result is that the voltage value is within the rated voltage range, it is determined that the backup battery BAT is in place; if the second detection result is that the voltage value is empty or not within the rated voltage range, it is determined that the backup battery BAT is not in place.

[0044] In the embodiment of the present invention, a backup battery presence detection logic is provided when the circuit on-off control unit is disconnected, which is simple and easy to implement and does not require a load circuit structure to implement.

[0045] Based on the above embodiment, the receiving the second detection result of the electrical signal detection unit includes: When the remaining power of the backup battery is greater than or equal to the preset power, the circuit on / off control unit is controlled to be disconnected.

[0046] Specifically, the communication power supply system also includes a power detection unit, which is connected to the backup battery BAT and the micro control unit U1 respectively, and the power detection unit can detect the remaining power of the backup battery BAT and transmit the remaining power to the micro control unit U1, and the micro control unit U1 can compare the remaining power with the preset power. The preset power can be set as needed, for example, it can be the minimum remaining power that the backup battery BAT can discharge without charging.

[0047] When the remaining power of the backup battery is greater than or equal to the preset power, the micro control unit U1 can control the circuit on / off control unit 22 to disconnect. At this time, the micro control unit U1 can control the backup battery BAT and the rectifier unit 21 to jointly power the communication device. In this case, the detection of whether the backup battery BAT is in place is realized by executing step S3.

[0048] In the embodiment of the present invention, a scenario example in which the circuit on / off control unit is disconnected is provided.

[0049] Based on the above embodiment, the controlling the rectifying unit to output the target voltage includes: When the remaining power of the backup battery is less than the preset power, the circuit on / off control unit is controlled to be closed.

[0050] Specifically, when the remaining power of the backup battery is less than the preset power, the micro control unit U1 can control the circuit on / off control unit 22 to close. At this time, the micro control unit U1 can control the rectifier unit 21 to charge the backup battery BAT and power the communication device at the same time. In this case, the detection of whether the backup battery BAT is in place is realized by executing steps S1 and S2.

[0051] In the embodiment of the present invention, a scenario example of closing the circuit on-off control unit is provided.

[0052] like Figure 2 As shown, based on the above embodiment, a communication power supply system is provided in the embodiment of the present invention, including: a micro control unit U1, a rectifier unit 21, a circuit on / off control unit 22 and an electrical signal detection unit 23; The micro control unit U1 is connected to the rectifier unit 21, the circuit on / off control unit 22 and the electrical signal detection unit 23 respectively; The rectifier unit 21, the circuit on / off control unit 22 and the electric signal detection unit 23 are connected in sequence, and the electric signal detection unit 23 is used to connect to the backup battery BAT; The micro control unit U1 is used to execute the backup battery presence detection method in the communication power supply system provided in the above embodiments.

[0053] The communication power supply system can determine whether the backup battery is in place while supplying power to the load of the communication system. The communication system can be an indoor or outdoor base station of a communication operator.

[0054] On the basis of the above embodiment, the communication power supply system provided in the embodiment of the present invention further includes a signal conversion unit; The signal conversion unit is connected to the rectification unit and the micro control unit; The signal conversion unit is used to convert the supply voltage output by the rectification unit to the micro control unit into a required voltage of the micro control unit.

[0055] Specifically, since the power supply voltage of the micro control unit U1 is usually 3V, the power supply voltage output by the rectifier unit 21 for power supply or charging the backup battery is generally 48V.

[0056] Therefore, it is necessary to use a signal conversion unit to convert the supply voltage into the required voltage of the micro control unit U1. Here, the signal conversion unit can be a voltage drop circuit, that is, a 48V to 3V conversion circuit. In this way, the supply voltage output by the rectifier unit can not only power the load of the communication system and charge the backup battery, but also power the micro control unit after conversion by the signal conversion unit.

[0057] On the basis of the above embodiment, in the communication power supply system provided in the embodiment of the present invention, the signal conversion unit includes a first conversion circuit and a second conversion circuit; The input end of the first conversion circuit is connected to the output end of the rectifier unit, the output end of the first conversion circuit is connected to the input end of the second conversion circuit, and the output end of the second conversion circuit is connected to the power supply end of the micro control unit; The first conversion circuit is used to convert the supply voltage into a first voltage; the first voltage is lower than the supply voltage; The second conversion circuit is used for converting the first voltage into a required voltage of the micro control unit.

[0058] Specifically, Figure 5 , which is a schematic diagram of the structure of the first conversion circuit. The first conversion circuit includes a first buck chip U4, a first diode D2, a first capacitor C13, a first resistor R22, a second resistor R26, a second diode D5, a second capacitor C14, a third resistor R29, a fourth resistor R23, a fifth resistor R1, a first inductor L2, a third diode D3, a third capacitor C67 and a sixth resistor R72.

[0059] The model of the first diode D2 may be SS510, the capacitance value of the first capacitor C13 may be 47uF, and the rated voltage may be 100V. The resistance value of the first resistor R22 may be 100KΩ, the resistance value of the second resistor R26 may be 270Ω, the model of the second diode D5 may be BAV21W, the capacitance value of the second capacitor C14 may be 22uF, and the rated voltage may be 16V. The resistance value of the third resistor R29 may be 11KΩ, the resistance value of the fourth resistor R23 may be 100KΩ, the resistance value of the fifth resistor R1 may be 0.1KΩ, the inductance value of the first inductor L2 may be 47uH, the model of the third diode D3 may be SS510, the capacitance value of the third capacitor C67 may be 470uF, and the rated voltage may be 25V. The resistance value of the sixth resistor R72 may be 3KΩ.

[0060] The pin VIN of the first buck chip U4 is the input terminal, the pin VDD is the power terminal, the pin VFB is the feedback voltage pin, the pin CS is the current sampling terminal, the pin VSS is the system ground terminal, and the pin NC is the floating terminal.

[0061] The input end of the first conversion circuit is connected to a power supply voltage, which is 48V. The output end of the first conversion circuit outputs a first voltage, which may be 12V.

[0062] like Figure 6, which is a schematic diagram of the structure of the second conversion circuit. The second conversion circuit includes a second buck chip U25, a fourth capacitor C49, a seventh resistor R107, an eighth resistor R63, a ninth resistor R108, a tenth resistor R24, a fifth capacitor C50, a sixth capacitor C91, a fourth diode D22, a second inductor L3 and a seventh capacitor C94.

[0063] The resistance value of the seventh resistor R107 can be 3.24KΩ, the resistance value of the eighth resistor R63 can be 10.2KΩ, the resistance value of the ninth resistor R108 can be 18.7KΩ, and the resistance value of the tenth resistor R24 ​​can be 100KΩ. The capacitance value of the sixth capacitor C91 can be 4.7uF, the model of the second diode D5 can be BYS10-25, the inductance value of the second inductor L3 can be 6.8uH, and the capacitance value of the seventh capacitor C94 can be 22uF.

[0064] The pin VIN of the second buck chip U25 is the input terminal, the pin SW is the switch pin, the pin BST is the connection point of the bootstrap capacitor, the pin GND is the ground pin, the pin FB is the feedback pin, and the pin EN is the enable pin.

[0065] The input end of the second conversion circuit is connected to a first voltage, which is 12V. The output end of the second conversion circuit outputs a required voltage of the micro control unit, which is 3.3V.

[0066] Based on the above embodiment, the circuit on-off control unit is a DC contactor, and the electrical signal detection unit is a shunt. The DC contactor is used to control the on-off of the backup battery circuit, and the shunt is used to detect the output voltage and current of the backup battery.

[0067] like Figure 7 As shown, based on the above embodiment, an embodiment of the present invention further provides a backup battery in-place detection device in a communication power supply system, comprising: A control module 71, configured to control the rectifier unit to output a target voltage to an electrical signal detection unit connected between the circuit on-off control unit and the backup battery in a communication power supply system when the circuit on-off control unit connected between the rectifier unit and the backup battery is closed; the target voltage is lower than a rated voltage range of the backup battery; The presence detection module 72 is used to receive the first detection result of the electrical signal detection unit. If the first detection result is that there is a current value, it is determined that the backup battery is in place. If the first detection result is that there is no current value, it is determined that the backup battery is not in place.

[0068] Based on the above embodiment, the presence detection module is further used for: When the circuit on-off control unit is disconnected, a second detection result of the electrical signal detection unit is received. If the second detection result is that the voltage value is within the rated voltage range, it is determined that the backup battery is in place; if the second detection result is that the voltage value is empty or is not within the rated voltage range, it is determined that the backup battery is not in place.

[0069] Based on the above embodiment, the control module is further used for: When the remaining power of the backup battery is greater than or equal to the preset power, the circuit on / off control unit is controlled to be disconnected.

[0070] Based on the above embodiment, the control module is further used for: When the remaining power of the backup battery is less than the preset power, the circuit on / off control unit is controlled to be closed.

[0071] Specifically, the functions of each module in the backup battery in-place detection device in the communication power supply system provided in the embodiment of the present invention correspond one-to-one to the operating procedures of each step in the above-mentioned method embodiment, and the effects achieved are also consistent. Please refer to the above-mentioned embodiment for details, and no further details will be given in the embodiment of the present invention.

[0072] Figure 8 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 8 As shown, the electronic device may include: a processor 810, a communications interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communications interface 820 and the memory 830 communicate with each other via the communication bus 840. The processor 810 may call the logic instructions in the memory 830 to execute the backup battery in-place detection method in the communication power supply system provided in the above embodiments.

[0073] In addition, the logic instructions in the above-mentioned memory 830 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention, or the part that contributes to the relevant technology or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0074] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the backup battery presence detection method in the communication power supply system provided in the above-mentioned embodiments.

[0075] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the backup battery presence detection method in the communication power supply system provided in the above-mentioned embodiments.

[0076] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0077] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for detecting the presence of a backup battery in a communication power supply system, characterized in that: include: When the circuit on-off control unit connected between the rectifier unit and the backup battery in the communication power supply system is closed, control the rectifier unit to output a target voltage to the electrical signal detection unit connected between the circuit on-off control unit and the backup battery; The target voltage is lower than the rated voltage range of the backup battery; A first detection result of the electrical signal detection unit is received. If the first detection result is that a current value exists, it is determined that the backup battery is in place. If the first detection result is that a current value does not exist, it is determined that the backup battery is not in place.

2. The method for detecting the presence of a backup battery in a communication power supply system according to claim 1, characterized in that: Also includes: When the circuit on-off control unit is disconnected, a second detection result of the electrical signal detection unit is received. If the second detection result is that the voltage value is within the rated voltage range, it is determined that the backup battery is in place; if the second detection result is that the voltage value is empty or is not within the rated voltage range, it is determined that the backup battery is not in place.

3. The method for detecting the backup battery in place in a communication power supply system according to claim 2, characterized in that: The receiving of the second detection result of the electric signal detection unit comprises: When the remaining power of the backup battery is greater than or equal to the preset power, the circuit on / off control unit is controlled to be disconnected.

4. The method for detecting the backup battery in place in a communication power supply system according to any one of claims 1 to 3, characterized in that: The controlling the rectifying unit to output a target voltage comprises: When the remaining power of the backup battery is less than the preset power, the circuit on / off control unit is controlled to be closed.

5. A communication power supply system, characterized in that: include: Micro control unit, rectification unit, circuit on / off control unit and electrical signal detection unit; The micro control unit is connected to the rectifying unit, the circuit on-off control unit and the electrical signal detection unit respectively; The rectifying unit, the circuit on-off control unit and the electric signal detection unit are connected in sequence, and the electric signal detection unit is used to be connected to a backup battery; The micro control unit is used to execute the backup battery presence detection method in the communication power supply system according to any one of claims 1-4.

6. The communication power supply system according to claim 5, characterized in that: Also included is a signal conversion unit; The signal conversion unit is connected to the rectification unit and the micro control unit; The signal conversion unit is used to convert the supply voltage output by the rectification unit into the required voltage of the micro control unit.

7. The communication power supply system according to claim 6, characterized in that: The signal conversion unit includes a first conversion circuit and a second conversion circuit; The input end of the first conversion circuit is connected to the output end of the rectifier unit, the output end of the first conversion circuit is connected to the input end of the second conversion circuit, and the output end of the second conversion circuit is connected to the power supply end of the micro control unit; The first conversion circuit is used to convert the supply voltage into a first voltage; the first voltage is lower than the supply voltage; The second conversion circuit is used for converting the first voltage into a required voltage of the micro control unit.

8. The communication power supply system according to any one of claims 5 to 7, characterized in that: The circuit on-off control unit is a DC contactor, and the electrical signal detection unit is a shunt.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the program, the method for detecting the presence of a backup battery in a communication power supply system according to any one of claims 1 to 4 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the method for detecting the presence of a backup battery in a communication power supply system according to any one of claims 1 to 4 is implemented.

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