Communication power supply detection device

Abstract

The utility model belongs to the technical field of detection, and particularly relates to a communication power supply detection device, which detects the power output of a communication power supply in real time through a current detection module, and automatically cuts off the power output of the communication power supply through an automatic switch module when the power output is abnormal. Damage to communication equipment caused by abnormal output of the communication power supply is effectively avoided, and an alarm signal is sent to the alarm module through the communication module, so that the alarm module gives an alarm to remind a worker to check problems in time, and communication interruption is effectively avoided to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the field of detection technology, and specifically relates to a communication power supply detection device. Background Art

[0002] The communication power supply is the heart of the communication system. A stable and reliable communication power supply system is the key to ensure the safe and reliable operation of the communication system. Once the communication power supply system fails, such as overvoltage and overcurrent, it will cause certain damage to the communication equipment, or even make the communication equipment unable to operate, which will not only increase the maintenance cost, but also cause the communication circuit to be interrupted and the communication system to be paralyzed, thus causing great economic and social benefits. Therefore, the communication power supply occupies a very important position in the communication system.

[0003] At present, the detection of communication power supply is generally carried out through manual inspection to detect whether the output voltage and output current of the communication power supply are normal. However, manual inspection has a certain periodicity and cannot detect the output of the communication power supply in real time. Therefore, it is often impossible to effectively avoid the phenomenon that the communication equipment is damaged due to the failure of the communication power supply. Summary of the invention

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a communication power supply detection device, which aims to realize real-time detection of the power output of the communication power supply and timely cut off the power transmission when the power output of the communication power supply is abnormal, so as to effectively avoid damage to the communication equipment caused by the abnormal communication power supply output.

[0005] In order to realize the above technical solution, the utility model provides a communication power supply detection device, including: a current detection module, a microcontroller, an automatic switch module, a communication module and an alarm module;

[0006] A current detection module, used to detect the current output by the communication power supply and generate a current detection signal;

[0007] The microcontroller is connected to the current detection module to obtain a current detection signal generated by the current detection module;

[0008] The microcontroller is connected to the automatic switch module to control the automatic switch module to automatically cut off the power output of the communication power supply;

[0009] The microcontroller is connected with the alarm module through the communication module, so as to send an alarm instruction to the alarm module through the communication module and control the alarm module to give an alarm.

[0010] Furthermore, the automatic switch module includes a delay circuit and a switch circuit;

[0011] The input end of the delay circuit is connected to the microcontroller to receive the control signal of the microcontroller; the output end of the delay circuit is connected to the switch circuit to delay the preset time to control the automatic on and off of the switch circuit.

[0012] Further, the delay circuit includes: a second resistor R2, a third resistor R3, a second diode D2 and a third polar capacitor C3;

[0013] The switch circuit includes a fourth resistor R4, a first transistor Q1, a second transistor Q2, a fifth resistor R5 and a relay KA;

[0014] The first end of the second resistor R2 is connected to the input end IO2 of the delay circuit, the cathode of the second diode D2, and the first end of the fourth resistor R4;

[0015] The second end of the second resistor R2 is connected to the first end of the third resistor, the anode of the second diode, the positive electrode of the third polar capacitor C3 and the base of the first transistor;

[0016] A second end of the third resistor R3 and a negative electrode of the third polarized capacitor are grounded;

[0017] The collector of the first transistor Q1 is connected to the power supply VCC through the fifth resistor R5; the emitter of the first transistor Q1 is connected to the base of the second transistor Q2; the collector of the second transistor Q2 is connected to the second end of the fourth resistor R4 and the first end of the induction coil K of the relay KA; the emitter of the second transistor Q2 is grounded;

[0018] A second end section of the induction coil K of the relay KA is connected to a power source VCC.

[0019] Further, the current detection module includes a current transformer T; a first diode D1, a first polarized capacitor C1, a second non-polarized capacitor C2 and a first resistor R1;

[0020] The first end of the current transformer T is connected to the anode of the first diode; the cathode of the first diode is connected to the positive electrode of the polar capacitor C1, the first end of the non-polar capacitor C2, the first end of the first resistor R1 and the output end IO1 of the current detection module;

[0021] The second end of the current transformer T, the negative electrode of the polar capacitor C1, the second end of the non-polar capacitor C2, and the second end of the first resistor R1 are all grounded.

[0022] Furthermore, the device also includes a temperature detection module and a smoke concentration sensor;

[0023] The temperature detection module is used to detect the temperature of the surrounding environment;

[0024] The smoke density sensor is used to detect the smoke density in the surrounding environment.

[0025] Furthermore, the microcontroller is a single chip microcomputer.

[0026] Furthermore, the communication module adopts a LoRa wireless communication module.

[0027] Furthermore, the temperature detection module adopts a DC18b20 digital temperature sensor.

[0028] The beneficial effects of the utility model are:

[0029] The utility model detects the power output of the communication power supply in real time through the current detection module, and automatically cuts off the power output of the communication power supply through the automatic switch module when the power output is abnormal, effectively avoiding damage to the communication equipment caused by the abnormal communication power output.

[0030] In addition, an alarm signal is sent to the alarm module through the communication module, so that the alarm module sounds an alarm to remind the staff to check the problem in time, which effectively avoids communication interruption to a certain extent.

[0031] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0033] Figure 1 The present invention is a schematic diagram of the principle of an embodiment of a communication power supply detection device of the present invention.

[0034] Figure 2 This is the circuit diagram of the current detection module.

[0035] Figure 3 This is the circuit diagram of the automatic switch module.

[0036] Figure 4 The present invention is a circuit diagram of another embodiment of a communication power supply detection device of the present invention.

[0037] 1- microcontroller; 2- current detection module; 3- communication module; 4- automatic switch module; 5- alarm module; 6- temperature detection module. DETAILED DESCRIPTION

[0038] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0039] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, each technical and scientific term used in this embodiment has the same meaning as commonly understood by ordinary maintenance personnel in the technical field to which the present invention belongs.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

[0042] In the present utility model, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or maintenance personnel in this field, the specific meanings of the above terms in the present utility model can be determined according to specific circumstances, and they cannot be understood as limitations on the present utility model.

[0043] Embodiment 1:

[0044] like Figure 1 As shown, this embodiment provides a communication power supply detection device, including: a current detection module 2, a microcontroller 1, an automatic switch module 4, a communication module 3, an alarm module 5 and a temperature detection sensor 6. Among them, the alarm module 5 can be installed according to actual conditions, for example, installed in a monitoring room. The communication module 3 can use a LoRa wireless communication module to communicate with the alarm module installed in the monitoring room in a wireless manner through the LoRa wireless communication module.

[0045] The current detection module 2 is used to detect the current output by the communication power supply and generate a current detection signal.

[0046] An input terminal of the current detection module 2 is connected to an output terminal of the communication power supply (not shown) to detect the output current of the communication power supply and generate a current detection signal.

[0047] The output end of the current detection module 2 is connected to the microcontroller 1 to send the generated current detection signal to the microcontroller 1 .

[0048] The control end of the automatic switch module 4 is connected to the microcontroller 1, and the microcontroller 1 controls the on and off of the automatic switch module 4 through a PWM signal. The automatic switch module 4 is arranged between the output of the communication power supply and the communication equipment, so as to automatically cut off the power output of the communication power supply by controlling the on and off of the automatic switch module 4.

[0049] The temperature detection module 6 is arranged on the communication power supply to detect the temperature of the communication power supply, and the temperature detection module is connected to the microcontroller to send the detected temperature to the microcontroller, wherein the temperature detection module 6 can adopt a DC18b20 digital temperature sensor.

[0050] The microcontroller 1 is connected to the alarm module 5 via the communication module 3 so as to send an alarm instruction to the alarm module 5 via the communication module 3 and control the alarm module 5 to give an alarm.

[0051] When this embodiment is in use, the current detection module detects the current output by the communication power supply and generates a current detection signal. The microcontroller obtains the current detection signal and sends a control signal to the automatic switch module, so that the automatic switch module automatically cuts off the output of the communication power supply. This helps to cut off power transmission in time when the power output of the communication power supply is abnormal, thereby avoiding damage to the communication equipment.

[0052] Embodiment 2:

[0053] The difference between this embodiment and embodiment 1 is that:

[0054] Specifically, Figure 2 As shown, the current detection module 2 includes a current transformer T, a first diode D1, a first polarized capacitor C1, a second non-polarized capacitor C2 and a first resistor R1. The current transformer T is located at the output end of the communication power supply to sense the current at the output end of the communication power supply.

[0055] The first end of the current transformer T is connected to the anode of the first diode; the cathode of the first diode is connected to the positive electrode of the polar capacitor C1, the first end of the non-polar capacitor C2, the first end of the first resistor R1 and the output end IO1 of the current detection module.

[0056] The second end of the current transformer T, the negative electrode of the polar capacitor C1, the second end of the non-polar capacitor C2, and the second end of the first resistor R1 are all grounded.

[0057] like Figure 3As shown, the automatic switch module 4 includes a delay circuit and a switch circuit. The input end of the delay circuit is connected to the microcontroller 1 for receiving the control signal of the microcontroller 1; the output end of the delay circuit is connected to the switch circuit to delay the preset time to control the automatic on and off of the switch circuit.

[0058] Specifically, the delay circuit includes: a second resistor R2, a third resistor R3, a second diode D2 and a third polar capacitor C3. The switch circuit includes a fourth resistor R4, a first transistor Q1, a second transistor Q2, a fifth resistor R5 and a relay KA.

[0059] A first end of the second resistor R2 is connected to the input end IO2 of the delay circuit, the cathode of the second diode D2, and a first end of the fourth resistor R4.

[0060] The second end of the second resistor R2 is connected to the first end of the third resistor, the anode of the second diode, the positive electrode of the third polar capacitor C3 and the base of the first transistor.

[0061] The second end of the third resistor R3 and the negative electrode of the third polarized capacitor are grounded.

[0062] The collector of the first transistor Q1 is connected to the power supply VCC through the fifth resistor R5; the emitter of the first transistor Q1 is connected to the base of the second transistor Q2; the collector of the second transistor Q2 is connected to the second end of the fourth resistor R4 and the first end of the induction coil K of the relay KA; the emitter of the second transistor Q2 is grounded. The second end section of the induction coil K of the relay KA is connected to the power supply VCC. Among them, the switch S of the relay KA is connected between the output of the communication power supply and the communication equipment, and the relay KA adopts a normally closed relay.

[0063] like Figure 4 As shown, the microcontroller 1 can be a single-chip microcomputer such as an AT89C51 single-chip microcomputer core, and the RST / VPD pin of the single-chip microcomputer is connected to the first end of the sixth resistor R6 and the first end of the fourth capacitor C4; the second end of the sixth resistor R6 is connected to the power supply VCC, and the second end of the fourth capacitor C4 is grounded.

[0064] The ATAL2 pin of the single-chip microcomputer is connected to the first end of the fifth capacitor C5, and the ATAL1 pin of the single-chip microcomputer is connected to the first end of the sixth capacitor C6; the second end of the fifth capacitor C5 is connected to the first end of the crystal oscillator Y, and the second end of the crystal oscillator Y and the second end of the sixth capacitor C6 are both grounded. The VCC pin of the single-chip microcomputer is connected to the power supply VCC; the EA / Vpp pin of the single-chip microcomputer is connected to the power supply VCC.

[0065] The P2.1 pin of the single chip microcomputer is connected to the input terminal IO1 of the current detection module. The P2.3 pin of the single chip microcomputer is connected to the temperature detection module.

[0066] The P0.0 pin of the single-chip microcomputer is connected to the input terminal IO2 of the automatic switch module. The P3.0 / RXD and P3.1 / TXD pins of the single-chip microcomputer are connected to the communication module.

[0067] When the present embodiment is working, the working principle of the current detection module is as follows: the current transformer detects the current on the output side of the communication power supply, and after filtering through the first polarized capacitor C1 and the second non-polarized capacitor C2, the first resistor R1 performs voltage division. Since the first end of the first resistor R1 is connected to the output end of the current detection module and the second end of the first resistor R1 is grounded, the voltage at the output end of the current detection module is the voltage on the first resistor R1, that is, the detection signal. When the current output of the communication power supply detected by the current transformer changes, the voltage input to the single-chip microcomputer, that is, the detection signal, also changes.

[0068] The single chip microcomputer sends a control signal to the automatic switch module based on the detected voltage. For example, when the detected voltage increases or decreases, a high level of a PWM pulse signal is sent to the delay circuit. When the PWM signal is at a high level, the voltage at the input terminal IO2 charges the third polarized capacitor C3 through the second resistor R2. Figure 3 The voltage at Vpr1 in the circuit gradually rises. When the voltage of Vpr1 is lower than the conduction voltage of the first transistor Q1 and the second transistor Q2, the first transistor Q1 and the second transistor Q2 are turned off, and the normally closed relay KA does not operate. When the voltage of Vpr1 is higher than the conduction voltage of the first transistor Q1 and the second transistor Q2, the first transistor Q1 and the second transistor Q2 are both turned on, and the normally closed relay KA operates, so that the switch S is disconnected, and the single-chip microcomputer sends an alarm signal to the alarm module through the LoRa wireless communication module, so that the alarm module alarms to remind the staff, thereby helping to disconnect the power supply to the communication equipment when the power output by the communication power switch is abnormal, avoiding damage to the communication equipment caused by the communication power supply, and improving the maintenance efficiency through timely alarm, which helps to avoid losses caused by power outages.

[0069] In addition, the temperature detection module detects the temperature of the communication power supply and sends the detected temperature to the single-chip microcomputer. When the temperature detected by the temperature detection module is abnormal, an alarm signal is sent to the alarm module through the LoRa wireless communication module, so that the alarm module alarms and promptly discovers the abnormality of the communication power supply, avoiding power outages caused by excessively high temperature of the communication power supply, and further ensuring safe power supply.

[0070] The same and similar parts between the various embodiments in this specification can be referenced to each other.

[0071] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0072] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For maintenance personnel in this field, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A communication power supply detection device, characterized in that: include: Current detection module, microcontroller, automatic switch module, communication module and alarm module; A current detection module, used to detect the current output by the communication power supply and generate a current detection signal; The microcontroller is connected to the current detection module to obtain a current detection signal generated by the current detection module; The microcontroller is connected to the automatic switch module to control the automatic switch module to automatically cut off the power output of the communication power supply; The microcontroller is connected with the alarm module through the communication module, so as to send an alarm instruction to the alarm module through the communication module and control the alarm module to give an alarm.

2. The communication power supply detection device according to claim 1, characterized in that: The automatic switch module includes a delay circuit and a switch circuit; The input end of the delay circuit is connected to the microcontroller to receive the control signal of the microcontroller; the output end of the delay circuit is connected to the switch circuit to delay the preset time to control the automatic on and off of the switch circuit.

3. The communication power supply detection device according to claim 2, characterized in that: The delay circuit includes: a second resistor R2, a third resistor R3, a second diode D2 and a third polar capacitor C3; The switch circuit includes a fourth resistor R4, a first transistor Q1, a second transistor Q2, a fifth resistor R5 and a relay KA; The first end of the second resistor R2 is connected to the input end IO2 of the delay circuit, the cathode of the second diode D2, and the first end of the fourth resistor R4; The second end of the second resistor R2 is connected to the first end of the third resistor, the anode of the second diode, the positive electrode of the third polar capacitor C3 and the base of the first transistor; A second end of the third resistor R3 and a negative electrode of the third polarized capacitor are grounded; The collector of the first transistor Q1 is connected to the power supply VCC through the fifth resistor R5; the emitter of the first transistor Q1 is connected to the base of the second transistor Q2; the collector of the second transistor Q2 is connected to the second end of the fourth resistor R4 and the first end of the induction coil K of the relay KA; the emitter of the second transistor Q2 is grounded; A second end section of the induction coil K of the relay KA is connected to a power source VCC.

4. The communication power supply detection device according to claim 1, characterized in that: The current detection module includes a current transformer T; a first diode D1, a first polarized capacitor C1, a second non-polarized capacitor C2 and a first resistor R1; The first end of the current transformer T is connected to the anode of the first diode; the cathode of the first diode is connected to the positive electrode of the polar capacitor C1, the first end of the non-polar capacitor C2, the first end of the first resistor R1 and the output end IO1 of the current detection module; The second end of the current transformer T, the negative electrode of the polar capacitor C1, the second end of the non-polar capacitor C2, and the second end of the first resistor R1 are all grounded.

5. The communication power supply detection device according to claim 1, characterized in that: The device also includes a temperature detection module and a smoke concentration sensor; The temperature detection module is used to detect the temperature of the surrounding environment; The smoke density sensor is used to detect the smoke density in the surrounding environment.

6. The communication power supply detection device according to claim 1, characterized in that: The microcontroller adopts a single chip microcomputer.

7. The communication power supply detection device according to claim 1, characterized in that: The communication module adopts a LoRa wireless communication module.

8. The communication power supply detection device according to claim 5, characterized in that: The temperature detection module adopts a DC18b20 digital temperature sensor.

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