Communication power supply control system

Abstract

The utility model provides a communication power supply control system, and belongs to the technical field of power supply control. The communication power supply control system comprises a power supply control module; the power supply control module comprises a main power supply circuit, an auxiliary power supply circuit, an energy storage unit, a first voltage detection circuit and a switching circuit; the first end of the main power supply circuit is connected with an external power supply; the second end of the main power supply circuit is used for outputting a communication system working power supply; the first end of the auxiliary power supply circuit is connected with the first end of the main power supply circuit, the second end of the auxiliary power supply circuit is connected with the energy storage unit, the second end of the auxiliary power supply circuit is connected with the first end of the switching circuit, and the second end of the switching circuit is connected with the second end of the main power supply circuit; the first end of the first voltage detection circuit is connected with the first end of the auxiliary power supply circuit, and the second end of the first voltage detection circuit is connected with the control end of the switching circuit. The problem that the power supply control system lacks intelligent monitoring and management means can be solved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power supply control, and in particular to a communication power supply control system. Background Art

[0002] With the rapid development of communication technology, the stable operation of communication systems is crucial to modern society. However, when facing external power fluctuations or power outages, traditional communication power systems often cannot guarantee the continuous power supply of communication systems, resulting in communication interruptions and huge losses to society.

[0003] Existing communication power supply systems mostly rely on a single external power supply and lack effective backup power supply solutions. Once the external power supply fails, the system will not be able to operate normally. In addition, traditional systems lack intelligent monitoring and management methods, making it difficult to detect and deal with power supply problems in a timely manner, further exacerbating the risk of communication interruption. Utility Model Content

[0004] The embodiments of the present disclosure provide a communication power supply control system to solve the problem that the power supply control system lacks intelligent monitoring and management means.

[0005] The embodiment of the present disclosure provides a communication power supply control system, including:

[0006] Power control module and central control module;

[0007] The first end of the power control module is used to connect to an external power source, the second end of the power control module is used to output a working power source for the communication system, and the third end of the power control module is connected to the central control module;

[0008] The power control module includes: a main power supply circuit, an auxiliary power supply circuit, an energy storage unit, a first voltage detection circuit and a switch circuit;

[0009] The first end of the main power supply circuit is used to connect to an external power supply, and the second end of the main power supply circuit is used to output a working power supply for the communication system;

[0010] The first end of the auxiliary power supply circuit is connected to the first end of the main power supply circuit, the second end of the auxiliary power supply circuit is connected to the energy storage unit, the second end of the auxiliary power supply circuit is connected to the first end of the switch circuit, and the second end of the switch circuit is connected to the second end of the main power supply circuit;

[0011] The first end of the first voltage detection circuit is connected to the first end of the auxiliary power supply circuit, the second end of the first voltage detection circuit is connected to the control end of the switch circuit, and the second end of the first voltage detection circuit is connected to the central control module.

[0012] In an exemplary embodiment of the present disclosure, the power control module includes: a diode D1, a diode D2, a capacitor C1, a switch tube Q1, a resistor R3 and a variable resistor RP1;

[0013] The anode of the diode D1 is used to connect to an external power supply, and the cathode of the diode D1 is used to output a working power supply for the communication system;

[0014] The anode of the diode D2 is connected to the anode of the diode D1, the cathode of the diode D2 is connected to the positive electrode of the capacitor C1, the negative electrode of the capacitor C1 is grounded, the cathode of the diode D2 is connected to the first end of the switch tube Q1, and the second end of the switch tube Q1 is connected to the cathode of the diode D1;

[0015] The first end of the resistor R3 is connected to the anode of the diode D2 , the second end of the resistor R3 is connected to the first end of the variable resistor RP1 , the second end of the variable resistor RP1 is grounded, and the sliding end of the variable resistor RP1 is connected to the control end of the switch tube Q1 .

[0016] In an exemplary embodiment of the present disclosure, the power control module further includes: a resistor R6 and a resistor R7;

[0017] The first end of the resistor R6 is connected to the first end of the switch tube Q1 , the second end of the resistor R6 is grounded through the resistor R7 , and the second end of the resistor R6 is connected to the central control module.

[0018] In an exemplary embodiment of the present disclosure, the power control module further includes: a capacitor C2, a resistor R5 and a transistor Q2;

[0019] The first end of the capacitor C2 is connected to the cathode of the diode D1, the second end of the capacitor C2 is grounded, the first end of the capacitor C2 is connected to the base of the transistor Q2 through the resistor R5, the collector of the transistor Q2 is connected to the cathode of the diode D1, and the emitter of the transistor Q2 is used to output the working power of the communication system.

[0020] In an exemplary embodiment of the present disclosure, the power control module further includes: an AND gate U1, a rheostat RP2 and a NOT gate U2;

[0021] The first end of the variable resistor RP2 is connected to the emitter of the transistor Q2, the second end of the variable resistor RP2 is grounded, the sliding end of the variable resistor RP2 is connected to the first input end of the AND gate U1, the second input end of the AND gate U1 is connected to the sliding end of the variable resistor RP1, the output end of the AND gate U1 is connected to the input end of the NOT gate U2, and the output end of the NOT gate U2 is connected to the central control module.

[0022] In an exemplary embodiment of the present disclosure, the power control module further includes: a light emitting diode LED1;

[0023] The anode of the light emitting diode LED1 is connected to the sliding end of the resistor RP1, and the cathode of the light emitting diode LED1 is grounded.

[0024] In an exemplary embodiment of the present disclosure, a communication module is also included;

[0025] The central control module is connected to the monitoring terminal through the communication module.

[0026] The beneficial effects of a communication power supply control system provided by the embodiment of the present disclosure are:

[0027] The disclosed embodiment realizes stable power supply to the communication system, and directly converts the external power supply into the working power required by the communication system through the main power supply circuit, thereby ensuring the normal operation of the system. Secondly, the system has an intelligent backup power supply switching function. When the external power supply voltage is abnormal or the power is cut off, it can automatically switch to the backup power supply provided by the energy storage unit, ensuring the continuous operation of the communication system in the event of an external power failure, greatly improving the reliability and stability of the system. In addition, the central control module makes the entire power control system more intelligent, and can monitor and manage the working status of the system in real time, issue alarms or take protective measures in a timely manner, further improving the safety and maintainability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0029] Figure 1 is a structural block diagram of a communication power supply control system provided by an embodiment of the present disclosure;

[0030] Figure 2 is a circuit diagram of a power control module provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] In order to enable people in the technical field to better understand the present solution, the technical solution in the embodiment of the present solution will be clearly described below in conjunction with the drawings in the embodiment of the present solution. Obviously, the described embodiment is an embodiment of a part of the present solution, not all of the embodiments. Based on the embodiments in the present solution, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present solution.

[0032] The term "including" and any other variations in the specification and claims of this solution and the above drawings mean "including but not limited to", and is intended to cover non-exclusive inclusions and is not limited to the examples listed in the text. In addition, the terms "first" and "second" are used to distinguish different objects, not to describe a specific order.

[0033] The following is a detailed description of the implementation of the present disclosure in conjunction with the specific drawings:

[0034] Figure 1 This is a schematic diagram of the structure of a communication power supply control system provided by an embodiment of the present disclosure. Figure 1 , a communication power supply control system, comprising: a power supply control module and a central control module; the first end of the power supply control module is used to connect to an external power supply, the second end of the power supply control module is used to output a working power supply for a communication system, and the third end of the power supply control module is connected to the central control module; the power supply control module comprises: a main power supply circuit, an auxiliary power supply circuit, an energy storage unit, a first voltage detection circuit and a switch circuit; the first end of the main power supply circuit is used to connect to an external power supply, and the second end of the main power supply circuit is used to output a working power supply for a communication system; the first end of the auxiliary power supply circuit is connected to the first end of the main power supply circuit, the second end of the auxiliary power supply circuit is connected to the energy storage unit, the second end of the auxiliary power supply circuit is connected to the first end of the switch circuit, and the second end of the switch circuit is connected to the second end of the main power supply circuit; the first end of the first voltage detection circuit is connected to the first end of the auxiliary power supply circuit, the second end of the first voltage detection circuit is connected to the control end of the switch circuit, and the second end of the first voltage detection circuit is connected to the central control module.

[0035] In this embodiment, the first end of the main power supply circuit is also connected to the external power supply, and the second end thereof is used to output the working power supply of the communication system. The power supply circuit is used to directly convert the external power supply into the working power supply required by the communication system. The first end of the auxiliary power supply circuit is connected to the external power supply, and the second end thereof is connected to the energy storage unit. The function of the auxiliary power supply circuit is to charge the energy storage unit when there is an external power supply. The energy storage unit is used to provide a backup power supply when the system is powered off or the external power supply is unavailable. In this embodiment, the energy storage unit can be a battery or a super capacitor. The first voltage detection circuit is used to detect the voltage of the external power supply. If the voltage of the external power supply is normal, the switch circuit remains in a closed state, and the communication system is powered by the main power supply circuit. If the voltage of the external power supply is abnormal or the power is off, the voltage detection circuit will trigger the switch circuit to open, so that the energy storage unit provides a backup power supply for the communication system through the switch circuit. The central control module is used to receive the voltage information transmitted by the first voltage detection circuit, so as to monitor and manage the working state of the entire power control system. For example, when the central control module receives a signal of abnormal voltage, an alarm can be issued or corresponding protective measures can be taken.

[0036] Under normal circumstances, the communication system is powered directly by an external power supply through the main power supply circuit. When the external power supply is abnormal or power is cut off, this embodiment can automatically switch to the energy storage unit providing backup power for the communication system through the auxiliary power supply circuit and the switch circuit to ensure the continuous operation of the communication system.

[0037] For example, it is assumed that the communication power control system is applied to a small communication base station in a remote area.

[0038] The main power supply circuit adopts an efficient AC-DC conversion circuit, and its input end is connected to the local mains power grid (220V AC). After rectification, filtering and voltage stabilization, the output end of the main power supply circuit stably outputs 48V DC to provide working power for the equipment of the communication base station. The auxiliary power supply circuit is composed of a step-down DC-DC converter. When the mains power is normal, it steps down the mains power to a voltage suitable for charging the battery (for example, 12V) to charge a group of 12V, 100Ah batteries. The energy storage unit selects a 12V100Ah lead-acid battery group. The first voltage detection circuit consists of a voltage divider resistor network and a comparator. When it is detected that the mains input voltage is lower than 200V or completely powered off, a control signal is output. The switch circuit adopts a high-power MOSFET switch, and its control end receives the signal from the first voltage detection circuit. The central control module adopts a microcontroller-based circuit board to receive the voltage information from the first voltage detection circuit in real time. When the mains power is normal, the central control module only performs conventional data recording and monitoring. Once a voltage abnormality signal is received, the central control module immediately triggers the sound and light alarm device in the base station, and sends a fault alarm to the remote monitoring center through the network. At the same time, it activates the emergency plan, such as reducing the power of some non-critical equipment to extend the battery power supply time.

[0039] Under normal circumstances, the mains provides a stable power supply to the communication equipment of the base station through the main power supply circuit, and the battery is in a charging state. When a mains power grid failure occurs, such as a line interruption caused by strong winds, the mains voltage drops sharply or the power is cut off. The first voltage detection circuit responds quickly, triggering the switch circuit to turn on, and the battery provides 48V DC power to the communication equipment through the auxiliary power supply circuit and the switch circuit, ensuring that the communication system can continue to operate for a period of time, buying precious time for maintenance personnel to rush to the site for emergency repairs.

[0040] It can be concluded from the above that this embodiment realizes stable power supply to the communication system, and directly converts the external power supply into the working power supply required by the communication system through the main power supply circuit, thereby ensuring the normal operation of the system. Secondly, the system has an intelligent backup power supply switching function. When the external power supply voltage is abnormal or the power is cut off, it can automatically switch to the backup power supply provided by the energy storage unit, ensuring the continuous operation of the communication system when the external power supply fails, greatly improving the reliability and stability of the system. In addition, the central control module makes the entire power control system more intelligent, and can monitor and manage the working status of the system in real time, issue alarms or take protective measures in time, further improving the safety and maintainability of the system.

[0041] like Figure 2 As shown, in one embodiment of the present disclosure, the power control module includes: a diode D1, a diode D2, a capacitor C1, a switch tube Q1, a resistor R3 and a variable resistor RP1; the anode of the diode D1 is used to connect to an external power supply, and the cathode of the diode D1 is used to output the working power supply of the communication system; the anode of the diode D2 is connected to the anode of the diode D1, the cathode of the diode D2 is connected to the positive electrode of the capacitor C1, the negative electrode of the capacitor C1 is grounded, the cathode of the diode D2 is connected to the first end of the switch tube Q1, and the second end of the switch tube Q1 is connected to the cathode of the diode D1; the first end of the resistor R3 is connected to the anode of the diode D2, the second end of the resistor R3 is connected to the first end of the variable resistor RP1, the second end of the variable resistor RP1 is grounded, and the sliding end of the variable resistor RP1 is connected to the control end of the switch tube Q1.

[0042] In this embodiment, the diode D1 constitutes a main power supply circuit; the diode D2 constitutes an auxiliary power supply circuit; the switch tube Q1 constitutes a switch circuit; the resistor R3 and the variable resistor RP1 constitute a first voltage detection circuit; and the capacitor C1 constitutes an energy storage unit.

[0043] Under normal circumstances, the external power supply provides working power to the communication system through the diode D1 (main power supply circuit). At the same time, the diode D2 (auxiliary power supply circuit) connects the external power supply to the capacitor C1 (energy storage unit) to charge it for later use. The resistor R3 and the variable resistor RP1 (first voltage detection circuit) monitor the voltage of the external power supply. The switch tube Q1 in this embodiment is a P-channel enhancement type field effect transistor. The resistor R3 and the variable resistor RP1 form a voltage divider circuit. When the external power supply voltage is normal, the voltage after voltage division is not enough to turn on the switch tube Q1, the switch tube Q1 is in the cut-off state, and the auxiliary power supply circuit and the energy storage unit do not participate in the power supply. When the external power supply is powered off, the voltage on the variable resistor RP1 is 0, the switch tube Q1 is turned on, and the electric energy stored in the capacitor C1 supplies power to the communication system through the switch tube Q1.

[0044] In this embodiment, through integrated design, stable power supply of the communication system and automatic switching of the backup power supply are achieved, thereby improving the reliability and stability of the system; at the same time, intelligent power management is achieved using simple circuit elements, thereby reducing the complexity and cost of the system.

[0045] like Figure 2 As shown, in one embodiment of the present disclosure, the power control module also includes: a resistor R6 and a resistor R7; the first end of the resistor R6 is connected to the first end of the switch tube Q1, the second end of the resistor R6 is grounded through the resistor R7, and the second end of the resistor R6 is connected to the central control module.

[0046] In this embodiment, resistor R6 and resistor R7 constitute a second voltage detection circuit for detecting the voltage across capacitor C1. When capacitor C1 is charged or discharged, the voltage across it will change, and this change will be reflected to the central control module through the voltage divider circuit formed by resistor R6 and resistor R7. By detecting the voltage at the second end of resistor R6, the central control module can obtain the voltage state of capacitor C1 in real time, and then judge the energy storage condition of the energy storage unit. When the voltage of capacitor C1 drops to a certain level, the central control module can promptly issue an alarm or take corresponding measures to ensure that the communication system has sufficient backup power support when the external power supply fails.

[0047] In this embodiment, by real-time monitoring of the voltage state of capacitor C1, the management capability of the energy storage unit is improved, ensuring the reliability and stability of the backup power supply; at the same time, through connection with the central control module, intelligent management of the power control system is realized, improving the overall performance and maintainability of the system.

[0048] like Figure 2 As shown, in one embodiment of the present disclosure, the power control module also includes: a capacitor C2, a resistor R5 and a transistor Q2; the first end of the capacitor C2 is connected to the cathode of the diode D1, the second end of the capacitor C2 is grounded, the first end of the capacitor C2 is connected to the base of the transistor Q2 through the resistor R5, the collector of the transistor Q2 is connected to the cathode of the diode D1, and the emitter of the transistor Q2 is used to output the working power of the communication system.

[0049] In this embodiment, the communication system may generate a high voltage pulse at the moment of power-on, which may affect the performance of the communication system in the long run. Therefore, the capacitor C2, the resistor R5 and the transistor Q2 form a buffer circuit.

[0050] When the external power supply is powered on, the power supply voltage first charges the capacitor C2 through the diode D1. Since the voltage on the capacitor C2 is less than the conduction voltage of the transistor Q2 at the moment of power on, the transistor Q2 is in the cut-off state. As the voltage on the capacitor C2 gradually increases, the transistor Q2 begins to enter the amplification state, allowing more current to pass. As the voltage on the capacitor C2 continues to increase, the transistor Q2 eventually changes from the amplification state to the saturation state, and at this time the power supply of the communication system also slowly increases to the normal working voltage.

[0051] In this embodiment, the buffer circuit effectively suppresses the high-voltage pulses that may be generated by the communication system at the moment of power-on, thereby protecting the electronic components of the communication system from damage and extending the service life of the system; at the same time, the buffer circuit also ensures that the communication system can smoothly transition to a normal working state during the power-on process, thereby improving the stability and reliability of the system.

[0052] like Figure 2 As shown, in one embodiment of the present disclosure, the power control module also includes: an AND gate U1, a rheostat RP2 and a NOT gate U2; the first end of the rheostat RP2 is connected to the emitter of the transistor Q2, the second end of the rheostat RP2 is grounded, the sliding end of the rheostat RP2 is connected to the first input end of the AND gate U1, the second input end of the AND gate U1 is connected to the sliding end of the rheostat RP1, the output end of the AND gate U1 is connected to the input end of the NOT gate U2, and the output end of the NOT gate U2 is connected to the central control module.

[0053] In this embodiment, in order to more conveniently determine whether the external power supply is normal, this embodiment adds a gate circuit, and the two input ends of the AND gate U1 are respectively connected to the sliding end of the variable resistor RP1 and the sliding end of the variable resistor RP2. The variable resistor RP2 is used to divide the power supply of the communication system, and then send the divided voltage to the input end of the AND gate U1. When both input ends of the AND gate U1 receive electrical signals, it indicates that the external power supply is normal, and the AND gate U1 outputs a high level, which is then inverted by the NOT gate U2 and converted to a low level and sent to the central control module. When the external power supply is disconnected or the system has no voltage output, the AND gate U1 outputs a low level, which is inverted by the NOT gate U2 and converted to a high level and sent to the central control module. Therefore, the central control module can determine whether the external power supply is working normally according to the change of the output level signal of the NOT gate U2.

[0054] In this embodiment, accurate detection of the power supply status of the external power supply is achieved through the gate circuit; the central control module can determine the working status of the external power supply according to the change of the output level signal of the gate circuit, thereby improving the intelligence of the system; at the same time, it also enhances the reliability and stability of the system, ensuring that the communication system can take corresponding protection measures in time when the external power supply fails.

[0055] like Figure 2As shown, in one embodiment of the present disclosure, the power control module further includes: a light emitting diode LED1; an anode of the light emitting diode LED1 is connected to the sliding end of the resistor RP1, and a cathode of the light emitting diode LED1 is grounded.

[0056] In this embodiment, when the external power supply is normally supplied and the system is working normally, the sliding end of the variable resistor RP1 will output a voltage signal, which is sufficient to turn on the light-emitting diode LED1 and emit light. Therefore, the user can judge whether the external power supply has been normally connected and whether the system is working normally by observing whether the light-emitting diode LED1 is emitting light.

[0057] In this embodiment, the light emitting diode LED1 provides a simple and intuitive indication method for the user, so that the user can understand the working status of the power control system without using complicated instruments or equipment.

[0058] like Figure 1 As shown, in one embodiment of the present disclosure, a communication module is also included; the central control module is communicatively connected with the monitoring terminal via the communication module.

[0059] In this embodiment, the central control module establishes a communication connection with the monitoring terminal through the communication module. The communication connection can be wired or wireless. The central control module can transmit the real-time working status, performance parameters and any abnormal or fault information of the power control system to the monitoring terminal. The remote monitoring capability of the system is improved, so that the operation and maintenance personnel can understand the working status of the power control system in real time without going to the site in person, so as to timely discover and deal with possible problems.

[0060] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure 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 disclosure.

Claims

1. A communication power supply control system, characterized in that: include: Power control module and central control module; The first end of the power control module is used to connect to an external power source, the second end of the power control module is used to output a working power source for the communication system, and the third end of the power control module is connected to the central control module; The power control module includes: a main power supply circuit, an auxiliary power supply circuit, an energy storage unit, a first voltage detection circuit and a switch circuit; The first end of the main power supply circuit is used to connect to an external power supply, and the second end of the main power supply circuit is used to output a working power supply for the communication system; The first end of the auxiliary power supply circuit is connected to the first end of the main power supply circuit, the second end of the auxiliary power supply circuit is connected to the energy storage unit, the second end of the auxiliary power supply circuit is connected to the first end of the switch circuit, and the second end of the switch circuit is connected to the second end of the main power supply circuit; The first end of the first voltage detection circuit is connected to the first end of the auxiliary power supply circuit, the second end of the first voltage detection circuit is connected to the control end of the switch circuit, and the second end of the first voltage detection circuit is connected to the central control module.

2. A communication power supply control system as claimed in claim 1, characterized in that: The power control module includes: a diode D1, a diode D2, a capacitor C1, a switch tube Q1, a resistor R3 and a variable resistor RP1; The anode of the diode D1 is used to connect to an external power supply, and the cathode of the diode D1 is used to output a working power supply for the communication system; The anode of the diode D2 is connected to the anode of the diode D1, the cathode of the diode D2 is connected to the positive electrode of the capacitor C1, the negative electrode of the capacitor C1 is grounded, the cathode of the diode D2 is connected to the first end of the switch tube Q1, and the second end of the switch tube Q1 is connected to the cathode of the diode D1; The first end of the resistor R3 is connected to the anode of the diode D2 , the second end of the resistor R3 is connected to the first end of the variable resistor RP1 , the second end of the variable resistor RP1 is grounded, and the sliding end of the variable resistor RP1 is connected to the control end of the switch tube Q1 .

3. A communication power supply control system as claimed in claim 2, characterized in that: The power control module further includes: a resistor R6 and a resistor R7; The first end of the resistor R6 is connected to the first end of the switch tube Q1 , the second end of the resistor R6 is grounded through the resistor R7 , and the second end of the resistor R6 is connected to the central control module.

4. A communication power supply control system as claimed in claim 2, characterized in that: The power control module also includes: a capacitor C2, a resistor R5 and a transistor Q2; The first end of the capacitor C2 is connected to the cathode of the diode D1, the second end of the capacitor C2 is grounded, the first end of the capacitor C2 is connected to the base of the transistor Q2 through the resistor R5, the collector of the transistor Q2 is connected to the cathode of the diode D1, and the emitter of the transistor Q2 is used to output the working power of the communication system.

5. A communication power supply control system as claimed in claim 4, characterized in that: The power control module further includes: an AND gate U1, a rheostat RP2 and a NOT gate U2; The first end of the variable resistor RP2 is connected to the emitter of the transistor Q2, the second end of the variable resistor RP2 is grounded, the sliding end of the variable resistor RP2 is connected to the first input end of the AND gate U1, the second input end of the AND gate U1 is connected to the sliding end of the variable resistor RP1, the output end of the AND gate U1 is connected to the input end of the NOT gate U2, and the output end of the NOT gate U2 is connected to the central control module.

6. A communication power supply control system as claimed in claim 2, characterized in that: The power control module further includes: a light emitting diode LED1; The anode of the light emitting diode LED1 is connected to the sliding end of the resistor RP1, and the cathode of the light emitting diode LED1 is grounded.

7. A communication power supply control system as claimed in claim 1, characterized in that: Also includes a communication module; The central control module is connected to the monitoring terminal through the communication module.

Images