CN205450147U - Electricity inspection terminal with wireless communication module - Google Patents

Abstract

The utility model relates to an electricity inspection terminal with wireless communication module, its characterized in that: including temperature sensor, data memory, keyboard, liquid crystal display, host computer, microprocessor, real -time clock, the special electric energy chip of three -phase, accumulator voltage acquisition module and wireless communication module.

Description

A power inspection terminal with a wireless communication module

technical field

The utility model belongs to the field of electricity inspection, in particular to an electricity inspection terminal with a wireless communication module.

Background technique

With the development of modern society and economy, all walks of life have higher and higher demand and dependence on power supply. How to ensure the safety, continuity and stability of power supply is particularly important for power supply enterprises. Due to the natural and special physical properties of power production, supply, and use in an instant, as a power supply enterprise, in addition to ensuring the normal operation of its own power facilities and electrical equipment, it must also strengthen the safety and technical management of power users to prevent power users from internally Faults cause adverse effects on the grid.

At present, electricity inspectors mainly use traditional manual on-site inspections for electricity safety management of electricity customers. This inspection method lacks real-time performance and low work efficiency. It is impossible to check the user's equipment safety status, electrical operation status, Electricity usage and electrical work behavior, etc. Once the user has abnormal electricity consumption, the electricity inspection personnel cannot grasp and eliminate it in real time, which will affect the safe and stable operation of the power system and the normal electricity consumption of users. This traditional electricity inspection operation organization mode can no longer adapt to the current management and management of electricity demand customer service.

Utility model content

Aiming at the operation mode of electrical equipment in the power supply and distribution system of high-voltage power customers, relay protection and operation parameter sampling of automatic devices, real-time data monitoring, wireless remote transmission, etc., combined with the actual needs of power inspection work, the utility model provides a The power consumption inspection terminal with a wireless communication module is characterized in that it includes a temperature sensor, a data memory, a keyboard, a liquid crystal display, a host computer, a microprocessor, a real-time clock, a three-phase special power metering chip, a battery voltage acquisition module, and a wireless communication module,

The microprocessor is connected to the three-phase special electric energy metering chip through the handshake signal port SIG, reset control port RESET and SPI port, outputs control signals to the three-phase special electric energy metering chip, and reads the metering parameter register in the three-phase special electric energy metering chip Data; the upper computer communicates with the microprocessor through the UART2 port, modifies the meter calibration register parameters and terminal time in the three-phase special electric energy metering chip, and performs operations such as restoring factory settings and reading and writing data memory register values; the microprocessor communicates with the UART1 port Communicate with the wireless communication module, upload real-time data and fault diagnosis data to the server, and receive commands issued by the server and users in the form of SMS; the microprocessor is connected to the real-time clock through the CLKIN port to obtain timing signals; the microprocessor is connected to the real-time clock through the GPIO port The temperature sensor is connected; the microprocessor is connected to the data memory through the USB port, and the data memory stores real-time electric energy parameters and fault diagnosis data; the battery voltage acquisition module sends the battery current signal to the ADC converter inside the microprocessor for real-time sampling; the microprocessor is connected With keyboard and LCD display.

The wireless communication module includes a communication chip U1, a SIM card U3, resistors R1-R8, and capacitors C1-C6. The microprocessor is a single-chip microcomputer U2. The UART_TX port of the communication chip U1 is connected to the URXD1 port of the single-chip microcomputer U2 through the resistor R1. The communication chip U1 The UART_RX port is connected to the UTXD1 port of the microcontroller U2 through the resistor R2, the UART_RTS port of the communication chip U1 is connected to the UART_CTS port, the 5 BATT+ ports of the communication chip U1 are connected to the power supply VDD of the communication chip U1, and the 5 BATT+ ports of the communication chip U1 pass through The capacitor C1 is connected to the ground wire GND, the 5 BATT+ ports of the communication chip U1 are connected to the ground wire GND through the capacitor C2, the 5 GND ports of the communication chip U1 are connected to the ground wire GND, and the SIM_CD port of the communication chip U1 is connected to the SIM_VCC port of the SIM The power supply VCC of the card U3 is connected, and the SIM_RST port, SIM_CLK port, and SIM_DATA port of the communication chip U1 are respectively connected to the second pin, the third pin, and the seventh pin of the SIM card U3 through resistors R3, resistor R4, and resistor R5. The circuit where capacitor C3 is located, the series circuit of resistor R6 and capacitor C4, the series circuit of resistor R7 and capacitor C5, and the series circuit of resistor R8 and capacitor C6 are connected in parallel between the power supply VCC and the ground wire GND, the first pin of SIM card U3 Connect to the power supply VCC, the second pin of the SIM card U3 is connected between the resistor R6 and the capacitor C4, the third pin of the SIM card U3 is connected between the resistor R7 and the capacitor C5, and the seventh pin of the SIM card U3 is connected to Between the resistor R8 and the capacitor C6, the sixth pin of the SIM card U3 is grounded GND.

Beneficial effects of the utility model: (1) Accurately grasp the operating conditions of electric facilities and electrical equipment, maximize the working potential of electricity inspectors, and reduce the labor intensity of electricity inspectors; (2) due to the enhanced It improves the equipment management of power facilities and electrical equipment, and reduces the probability of affecting the safe operation of the system due to faulty operation of power facilities and electrical equipment; Personnel call the police, which speeds up troubleshooting and recovery of normal power consumption;

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is the wireless communication module circuit diagram of the present utility model;

Among them, 1: microprocessor; 2: three-phase special electric energy metering chip; 3: keyboard; 4: real-time clock; 5: temperature sensor; 6: data memory; 7: liquid crystal display; 8: host computer; 9: battery voltage Acquisition module; 10: wireless communication module.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

The embodiment of the utility model is shown in Fig. 1 with reference to.

A power consumption inspection terminal with a wireless communication module, which includes a temperature sensor, a data memory, a keyboard, a liquid crystal display, a host computer, a microprocessor, a real-time clock, a three-phase special electric energy metering chip, a battery voltage acquisition module, and a wireless communication module,

The microprocessor is connected to the three-phase special electric energy metering chip through the handshake signal port SIG, reset control port RESET and SPI port, outputs control signals to the three-phase special electric energy metering chip, and reads the metering parameter register in the three-phase special electric energy metering chip Data, and then carry out relevant data processing, and complete the data collection of electrical parameters; the upper computer communicates with the microprocessor through the UART2 port, modifies the parameters of the meter calibration register and the terminal time in the three-phase special electric energy metering chip, and restores the factory settings, reads and writes data The operation of the memory register value; the microprocessor communicates with the wireless communication module through the UART1 port, uploads the real-time data and fault diagnosis data to the server, and receives the commands issued by the server and the user through SMS; the microprocessor is connected with the real-time clock through the CLKIN port, To obtain timing signals; the microprocessor is connected to the temperature sensor through the GPIO port; the microprocessor is connected to the data memory through the USB port, and the data memory stores real-time power parameters and fault diagnosis data; the battery voltage acquisition module sends the battery current signal to the microprocessor The internal ADC converter performs real-time sampling; the microprocessor is connected with a keyboard and a liquid crystal display to realize the functions of moving up, moving down, confirming and returning the display page, which is convenient for users to query on-site information. The liquid crystal display is used to display current information query, history Information query, exception information query and system information query.

As shown in Figure 2, the wireless communication module includes a communication chip U1, a SIM card U3, resistors R1-R8, and capacitors C1-C6. The microprocessor is a single-chip microcomputer U2, and the UART_TX port of the communication chip U1 is connected to the URXD1 port of the single-chip microcomputer U2 through the resistor R1. Connection, the UART_RX port of the communication chip U1 is connected to the UTXD1 port of the microcontroller U2 through the resistor R2, the UART_RTS port of the communication chip U1 is connected to the UART_CTS port, the 5 BATT+ ports of the communication chip U1 are connected to the power supply VDD of the communication chip U1, and the communication chip U1 The 5 BATT+ ports of the communication chip U1 are connected to the ground wire GND through the capacitor C1, the 5 BATT+ ports of the communication chip U1 are connected to the ground wire GND through the capacitor C2, the 5 GND ports of the communication chip U1 are connected to the ground wire GND, and the SIM_CD of the communication chip U1 The port and the SIM_VCC port are connected to the power supply VCC of the SIM card U3, and the SIM_RST port, SIM_CLK port, and SIM_DATA port of the communication chip U1 are respectively connected to the second pin, the third pin, and The 7th pin is connected, the circuit where the capacitor C3 is located, the series circuit of the resistor R6 and the capacitor C4, the series circuit of the resistor R7 and the capacitor C5, and the series circuit of the resistor R8 and the capacitor C6 are connected in parallel between the power supply VCC and the ground wire GND, SIM card The first pin of U3 is connected to the power supply VCC, the second pin of the SIM card U3 is connected between the resistor R6 and the capacitor C4, the third pin of the SIM card U3 is connected between the resistor R7 and the capacitor C5, and the SIM card U3 The 7th pin of the SIM card U3 is connected between the resistor R8 and the capacitor C6, and the 6th pin of the SIM card U3 is grounded GND.

Among them, MCU U2 adopts 16-bit RxSC structure, and is configured with: 8Mhz high-speed crystal oscillator, single-slope A/D converter, 16-bit timer with 3 capture/compare registers, two-channel serial communication interface circuit, and hardware multiplier .

The above-mentioned embodiment is only an embodiment of the present utility model, but should not be construed as limiting the scope of the present utility model. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model.

Claims (2)

1. the power utility check terminal with wireless communication module, it is characterized in that: include temperature sensor, data storage, keyboard, liquid crystal display, host computer, microprocessor, real-time clock, the special electric energy computation chip of three-phase, battery tension acquisition module and wireless communication module

Microprocessor is connected by handshake port SIG, reseting controling end mouth RESET and SPI port electric energy computation chip special with three-phase, export control signal to the special electric energy computation chip of three-phase, and read the data of measuring parameter depositor in the special electric energy computation chip of three-phase；Host computer passes through UART2 port and microprocessor communications, calibration register parameters and terminal time in the amendment special electric energy computation chip of three-phase, and carries out factory reset, the operation of read-write data storage register value；Microprocessor is by UART1 port and wireless communication module communication, by real time data and fault diagnosis data upload server, the order that reception server and user are assigned by note form；Microprocessor is connected with real-time clock by CLKIN port, to obtain clock signal；Microprocessor is connected with temperature sensor by GPIO port；Microprocessor is connected with data storage by USB port, and data storage preserves real-time electrical energy parameter and fault diagnosis data；Battery current signal feeding microprocessor internal ADC transducer is carried out real-time sampling by battery tension acquisition module；Microprocessor connects keyboard and liquid crystal display；

nullWireless communication module includes communication chip U1、SIM U3、Resistance R1-R8 and electric capacity C1-C6，Microprocessor is single-chip microcomputer U2，The UART_TX port of communication chip U1 is connected by the URXD1 port of resistance R1 and single-chip microcomputer U2，The UART_RX port of communication chip U1 is connected by the UTXD1 port of resistance R2 and single-chip microcomputer U2，The UART_RTS port of communication chip U1 is connected with UART_CTS port，5 BATT+ ports of communication chip U1 are connected with the power vd D of communication chip U1，5 BATT+ ports of communication chip U1 are connected with ground wire GND by electric capacity C1，5 BATT+ ports of communication chip U1 are connected with ground wire GND by electric capacity C2，5 GND ports of communication chip U1 are connected with ground wire GND，The SIM_CD port of communication chip U1 is connected the power supply VCC of SIM U3 and connects with SIM_VCC port，The SIM_RST port of communication chip U1、SIM_CLK port、SIM_DATA port is respectively by resistance R3、Resistance R4、2nd pin of resistance R5 and SIM U3、3rd pin、7th pin connects，Electric capacity C3 place circuit、The series circuit of resistance R6 and electric capacity C4、The series circuit of resistance R7 and the series circuit of electric capacity C5 and resistance R8 and electric capacity C6 is connected in parallel between power supply VCC and ground wire GND，1st pin of SIM U3 is connected with power supply VCC，2nd pin of SIM U3 is connected between resistance R6 and electric capacity C4，3rd pin of SIM U3 is connected between resistance R7 and electric capacity C5，7th pin of SIM U3 is connected between resistance R8 and electric capacity C6，The 6th pin earth lead GND of SIM U3.

A kind of power utility check terminal with wireless communication module the most according to claim 1, it is characterized in that: single-chip microcomputer U2 uses 16 RxSC structures, it is configured with: 8Mhz high speed crystal oscillator, PDX A/D converter, has 16 bit timing devices of 3 capture/comparand registers, two channel serial communication interface circuits, hardware multiplier.