An automatic pressure regulator device supporting local and remote operation and maintenance

Abstract

The utility model discloses a kind of automatic pressure regulator devices supporting local and remote operation and maintenance, including automatic pressure regulator body and pressure regulator monitoring unit, the monitoring unit includes voltage current acquisition module, ARM main controller, GPS positioning module, nixie tube display module and bluetooth module, wherein ARM main controller includes digital-analog conversion module and FLASH module;Voltage current acquisition module connects live wire and zero line of cable line, and is connected by pin, connected to the analog-digital conversion module of ARM main controller, ARM main controller is electrically connected bluetooth module, nixie tube display module and GPS positioning module;The bluetooth module is connected mobile terminal by bluetooth communication, and the ARM main controller is connected to remote server by 4G communication.The utility model improves the convenience and work efficiency of field operation and maintenance personnel.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automatic voltage regulator, in particular to an automatic voltage regulator device supporting local and remote operation and maintenance. BACKGROUND

[0002] In the power system, the grid voltage is often fluctuated by various factors, which may cause damage to the electrical equipment. In order to protect the electrical equipment, a device for automatically adjusting the voltage is needed to ensure the stable operation of the equipment.

[0003] The existing automatic voltage regulator has the following shortcomings: first, since the voltage regulator is on the power pole, the operator needs to climb the pole to record the working status of the voltage regulator, so the efficiency of the equipment operation and maintenance personnel in the maintenance and repair work of the voltage regulator is low. Second, the existing voltage regulator does not have a running state log, and does not have the function of SOE event sequence recording of gear change process and voltage and current conditions. When the device fails, it is not conducive to analyzing and positioning the fault information. When the user wants to obtain the running state information of the voltage regulator, the log record reading is very inconvenient, and lacks the support of remote operation and maintenance software. In addition, the installation position information of the voltage regulator usually needs to be set in advance, and once the installation position changes, it is difficult to quickly obtain the new position information, which will bring difficulties to the maintenance work and other problems.

[0004] Therefore, an automatic voltage regulator capable of remote viewing and remote operation is needed. CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide an automatic voltage regulator device supporting local and remote operation and maintenance, and the utility model enables the operation and maintenance personnel to easily use the Bluetooth function of the mobile phone to monitor the running state of the voltage regulator through the WeChat applet, greatly improving the convenience and intuitiveness of the operation and maintenance operation. At the same time, the voltage regulator also has the function of remotely uploading the real-time state information to the cloud server through the 4G communication network, so as to facilitate the centralized monitoring and management of the master station. This innovative design not only optimizes the operation and maintenance process, but also enhances the intelligent monitoring level of the power system.

[0006] The technical scheme adopted by the utility model to solve the existing problems is: an automatic voltage regulator device supporting local and remote operation and maintenance, comprising a voltage and current acquisition module, an ARM main controller, a GPS positioning module, a digital tube display module and a Bluetooth module, wherein the ARM main controller comprises a digital-to-analog conversion module and a FLASH module.

[0007] The voltage and current acquisition module is connected to the live wire and the zero line of the cable line, and then connected to the analog-to-digital conversion module of the ARM main controller. The ARM main controller is electrically connected to the Bluetooth module, the digital tube display module and the GPS positioning module.

[0008] Preferably, the voltage and current acquisition module includes a current sampling circuit and a voltage acquisition circuit. Specifically, the current sampling circuit includes a current sampling circuit with a current transformer, and the voltage acquisition circuit specifically includes:

[0009] The input terminal of the voltage transformer includes pins 1 and 2, and the output terminal includes pins 3 and 4. Pin 1 of the voltage transformer is connected to the live wire through R1, and pin 2 is connected to the neutral wire. Pins 3 and 4 of the voltage transformer output terminal are connected to both sides of the sampling resistor R2.

[0010] The output pin 3 of the voltage transformer splits into two branches. One branch connects to the decoupling capacitor C1 and then to the ground terminal. The other branch connects to the current-limiting resistor R7 and then to the first voltage follower IN. + Port, first voltage follower IN - The port is connected to the OUT port of the first voltage follower, the VDD port of the first voltage follower is connected to the VCC terminal, and the GND port of the first voltage follower is connected to the ground terminal.

[0011] The first voltage follower's OUT port splits into two branches: one branch connects to resistor R3 and then to the PA0 port of the ARM main controller; the other branch connects to resistor R4 and then to the second voltage follower's IN port. + Port, second voltage follower IN - The port is connected to the ground terminal after the resistor R5 is connected to the ground terminal, the second voltage follower GND port is connected to the ground terminal, the second voltage follower VDD port is connected to VCC, and the second voltage follower OUT port is connected to the PC1 port of the ARM main controller after the resistor R6 is connected to the ground terminal.

[0012] Preferably, the voltage transformer is a ZMPT107-1, and the first voltage follower and the second voltage follower are two operational amplifiers of TLV2374IN.

[0013] Preferably, the GPS positioning module is an L76B module.

[0014] Port L76B1 is connected to the ground terminal; ports TX2 and RX3 are connected to the serial communication transmitter and receiver of the ARM main controller, respectively; port 1PPS4 is connected to the input port of the ARM main controller; port Vbatt6 is connected to the VCC terminal and also to port VCC8; port Vbatt6 is also connected to capacitor C4 and then to the ground terminal; and port VCC8 is connected in parallel with capacitors C5 and C6 and then to the ground terminal.

[0015] 12th GND_RF port connects 10th GND_RF port and connects to the ground, 11th RF_IN port is divided into two branches, one branch connects capacitor C7 and connects to the ground, the other branch connects resistor R23 and is divided into two branches, one branch connects capacitor C8, and the other branch connects to the RF coaxial connector 1st SIG port, the RF coaxial connector 2nd GND port and 3rd GND port are connected and connected to the ground.

[0016] Preferably, the RF coaxial connector is BWIPX-1-001E.

[0017] Preferably, the Bluetooth module is connected to the mobile phone end through Bluetooth communication.

[0018] Preferably, the ARM main controller is connected to the remote server through 4G communication.

[0019] Compared with the prior art, the utility model has the beneficial effect that:

[0020] 1. Improve the convenience and work efficiency of on-site operation and maintenance personnel, configure remote soft pressure plate to prevent misoperation on the voltage regulator.

[0021] 2. Configure the GPS module, which can time the voltage regulator, and add SOE event recording, which is beneficial to the operation and maintenance personnel to analyze the running process of the voltage regulator. Through the analysis of SOE, the voltage of the user area can be analyzed, and the reasonable voltage management scheme can be easily formulated.

[0022] 3. The configuration of the 4G module can ensure that the equipment can stably and efficiently communicate with the cloud server. Through this connection, users can remotely monitor the real-time running state of the voltage regulator at any time and anywhere, so as to realize the comprehensive control of the equipment running state. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model is further described below in combination with the drawings and examples.

[0024] Fig. 1 The hardware structure diagram of the automatic voltage regulator device monitoring unit supporting local and remote operation and maintenance,

[0025] Fig. 2 The voltage sampling circuit of the automatic voltage regulator device monitoring unit supporting local and remote operation and maintenance,

[0026] Fig. 3 The GPS circuit of the automatic voltage regulator device monitoring unit supporting local and remote operation and maintenance, DETAILED DESCRIPTION

[0027] The drawings are the best embodiment of the automatic pressure regulator device supporting local and remote operation and maintenance, and the following will be described in detail in combination with the drawings Figs. 1-3 Further detailed description of the utility model.

[0028] An automatic pressure regulator device supporting local and remote operation and maintenance, comprising an automatic pressure regulator body and a pressure regulator monitoring unit, the monitoring unit comprising a voltage and current acquisition module, an ARM main controller, a GPS positioning module, a digital tube display module and a Bluetooth module, wherein the ARM main controller comprises a digital-analog conversion module and a FLASH module.

[0029] The voltage and current acquisition module comprises a current sampling circuit and a voltage acquisition circuit, and the current sampling circuit is specifically a current sampling circuit comprising a current transformer, which acquires current information through the current transformer to monitor the running state of the pressure regulator, and the voltage acquisition circuit is responsible for acquiring the voltage before and after pressure regulation of the pressure regulator, and the voltage acquisition circuit is specifically:

[0030] The input end of the voltage transformer comprises pins 1 and 2, and the output end comprises pins 3 and 4, the pin 1 of the voltage transformer is connected to the live wire through R1, the pin 2 is connected to the zero line, and the output end pins 3 and 4 of the voltage transformer are connected to both sides of the sampling resistor R2;

[0031] The output end pin 3 of the voltage transformer is divided into two branches, one branch is connected to the ground end after connecting to the decoupling capacitor C1, and the other branch is connected to the 3# IN + port of the first voltage follower after connecting to the current limiting resistor R7, the 2# IN - port of the first voltage follower is connected to the 1# OUT port of the first voltage follower, the 4# VDD port of the first voltage follower is connected to the VCC end, and the 11# GND port of the first voltage follower is connected to the ground end;

[0032] The 1# OUT port of the first voltage follower is divided into two branches, one branch is connected to the PA0 port of the ARM main controller after connecting to the resistor R3, and the voltage is sampled through the PA0 pin of the ARM main controller, and the other branch is connected to the 3# IN + port of the second voltage follower after connecting to the resistor R4, the 2# IN - port of the second voltage follower is connected to the ground end after connecting to the resistor R5, R4, R5 and the second voltage follower constitute a voltage comparator, the 11# GND port of the second voltage follower is connected to the ground end, the 4# VDD port of the second voltage follower is connected to VCC, and the 1# OUT port of the second voltage follower is connected to the PC1 port of the ARM main controller after connecting to the resistor R6, when the live wire voltage is greater than 0, the PC1 pin outputs high level, and when the live wire voltage is less than 0, the PC1 outputs low level, thereby distinguishing and judging the positive and negative of the live wire voltage.

[0033] In this embodiment, the first voltage follower and the second voltage follower are U1.1 and U2.1 in TLV2374IN, respectively.

[0034] The GPS positioning module is specifically an L76B module, wherein No. 1 port of the L76B is connected to a ground end, No. 2 and No. 3 ports TX and RX are respectively connected to a serial communication sending end and a receiving end of an ARM main controller, No. 4 port 1PPS is connected to an input port of the ARM main controller, No. 6 port Vbatt is connected to a VCC end and is connected to No. 8 port VCC, No. 6 port Vbatt is also connected to a capacitor C4 and is connected to the ground end, and No. 8 port VCC is connected in parallel with a capacitor C5 and a capacitor C6 and is connected to the ground end.

[0035] No. 12 port GND_RF is connected to No. 10 port GND_RF and is connected to the ground end, No. 11 port RF_IN is divided into two branches, one branch is connected to a capacitor C7 and is connected to the ground end, and the other branch is connected to a resistor R23 and is divided into two branches, one branch is connected to a capacitor C8, and the other branch is connected to No. 1 port SIG of an RF coaxial connector BWIPX-1-001E, and No. 2 port GND and No. 3 port GND of the RF coaxial connector BWIPX-1-001E are connected and are connected to the ground end.

[0036] No. 6 port Vbatt provides a power supply voltage for the GPS module L76B, C4, C5 and C6 serve as decoupling capacitors to filter high-frequency noise and store energy, No. 4 port 1PPS is a state indication output port, and a second pulse is output when positioning is successful, R23, C7 and C8 form a π-type filter circuit to filter GPS antenna positioning signals and reduce interference on the positioning signals.

[0037] The voltage regulator can be time-calibrated and positioned through the GPS module. Voltage, current and time information before and after voltage regulation form log information and are stored in a FLASH module of the ARM main controller, and the voltage before voltage regulation, the voltage after voltage regulation, the current information in the circuit and the current gear are displayed on the device through a digital tube display module.

[0038] The ARM main controller is connected to a remote server through 4G communication for data transmission, and a user can monitor the running state of the voltage regulator in real time through the remote server, and can also remotely read log information of the voltage regulator, and can master the law of voltage and current at the power consumption end through analysis of SOE, and then can make a more reasonable voltage regulation strategy to meet the power consumption demand of the end.

[0039] The voltage regulator is equipped with a Bluetooth communication unit, and the operation and maintenance personnel can connect the voltage regulator through the WeChat applet to read the running state of the voltage regulator. The ARM controller is provided with a flag bit of remote control soft pressure plate, and when the flag bit is 1, that is, when the soft pressure plate is closed, the voltage regulator control is allowed through remote Bluetooth communication, specifically, the operation and maintenance personnel are allowed to accurately control the output voltage of the voltage regulator through the applet.

[0040] Five voltage gear adjustments are provided in the applet, specifically including fine adjustment gears of ±10%, larger adjustment gears of ±20%, and a bypass state for preventing the voltage regulator from malfunctioning and ensuring the quality of residential power consumption.

[0041] The specific use method of the device is as follows:

[0042] The device is installed on a power pole, and when the operation and maintenance personnel perform maintenance, the voltage regulator can be monitored and the output voltage can be adjusted through the WeChat applet through the mobile phone Bluetooth function on the device site. The voltage regulator state log information can also be retrieved through the remote server to realize remote monitoring of the voltage regulator and record SOE events during the voltage regulation process.

[0043] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. An automatic pressure regulator device supporting local and remote operations, characterized by: The automatic voltage regulator comprises a body and a voltage regulator monitoring unit, the monitoring unit comprising a voltage and current acquisition module, an ARM main controller, a GPS positioning module, a digital tube display module and a Bluetooth module, wherein the ARM main controller comprises a digital-analog conversion module and a FLASH module. The voltage and current acquisition module is connected to the live wire and the zero line of the circuit and then connected to the analog-digital conversion module of the ARM main controller, and the ARM main controller is electrically connected to the Bluetooth module, the digital tube display module and the GPS positioning module.

2. The automatic pressure regulator device of claim 1, wherein, The voltage and current acquisition module comprises a current sampling circuit and a voltage acquisition circuit, and the current sampling circuit specifically comprises a current transformer, and the voltage acquisition circuit specifically comprises: The input end of the voltage transformer comprises pins 1 and 2, and the output end comprises pins 3 and 4, the pin 1 of the voltage transformer is connected to the live wire through R1, the pin 2 is connected to the zero line, and the output end pins 3 and 4 of the voltage transformer are connected to both sides of the sampling resistor R2. The voltage transformer output terminal pin 3 is divided into two branches, one branch is connected to the ground terminal after connecting to the decoupling capacitor C1, and the other branch is connected to the first voltage follower IN after connecting to the current limiting resistor R7 + port, the first voltage follower IN - port is connected to the first voltage follower OUT port, the first voltage follower VDD port is connected to the VCC terminal, and the first voltage follower GND port is connected to the ground terminal; The first voltage follower's OUT port splits into two branches: one branch connects to resistor R3 and then to the PA0 port of the ARM main controller; the other branch connects to resistor R4 and then to the second voltage follower's IN port. + Port, second voltage follower IN - The port is connected to the ground terminal after the resistor R5 is connected to the ground terminal, the second voltage follower GND port is connected to the ground terminal, the second voltage follower VDD port is connected to VCC, and the second voltage follower OUT port is connected to the PC1 port of the ARM main controller after the resistor R6 is connected to the ground terminal.

3. The automatic pressure regulator device of claim 2, wherein, The voltage transformer is specifically ZMPT107-1, and the first voltage follower and the second voltage follower are specifically two operational amplifiers of TLV2374IN.

4. The automatic pressure regulator device of claim 1, wherein The GPS positioning module specifically adopts an L76B module, wherein the No. 1 port of the L76B is connected to the ground end, the No. 2 TX and No. 3 RX ports are respectively connected to the serial communication sending end and receiving end of the ARM main controller, the No. 4 1PPS port is connected to the input port of the ARM main controller, the No. 6 Vbatt port is connected to the VCC end and the No. 8 VCC port, the No. 6 Vbatt port is also connected to the capacitor C4 and the ground end, the No. 8 VCC port is connected in parallel with the capacitor C5 and the capacitor C6 and connected to the ground end; the No. 12 GND_RF port is connected to the No. 10 GND_RF port and connected to the ground end, the No. 11 RF_IN port is divided into two branches, one branch is connected to the capacitor C7 and connected to the ground end, and the other branch is connected to the resistor R23 and then divided into two branches, one branch is connected to the capacitor C8, and the other branch is connected to the SIG port of the RF coaxial connector No. 1, the GND port of the RF coaxial connector No. 2 and the GND port of the RF coaxial connector No. 3 are connected and connected to the ground end.

5. The automatic pressure regulator device of claim 4, wherein The RF coaxial connector is specifically BWIPX-1-001E.

6. The automatic pressure regulator device of claim 1, wherein The Bluetooth module is connected to the mobile phone end through Bluetooth communication.

7. The automatic pressure regulator device of claim 1, wherein The ARM main controller is connected to the remote server through 4G communication.

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