CN205404677U - Electricity inspection terminal with real -time clock - Google Patents

Abstract

The utility model relates to an electricity inspection terminal with a real-time clock, which 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 electric energy metering chip, and a storage battery Voltage acquisition module and wireless communication module.

Description

A kind of electricity checking terminal with real-time clock

technical field

The utility model belongs to the field of electricity inspection, in particular to an electricity inspection terminal with a real-time clock.

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 real-time clock 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 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; 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 the operation of restoring factory settings; the microprocessor communicates with the wireless communication module through the UART1 port, and The real-time data and fault diagnosis data are uploaded to the server, and receive the commands issued by the server and the user in the form of SMS; the microprocessor is connected to the real-time clock through the XICLKIN port to obtain timing signals; the microprocessor is connected to the temperature sensor through the GPIO port; the microprocessor Through the USB port and the data memory, the data memory stores real-time power 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 a keyboard and a liquid crystal display.

The real-time clock includes a clock chip U1, a crystal oscillator Y1 and a battery BT. The microprocessor is a single-chip microcomputer U2. The crystal oscillator Y1 is connected to the X1 port and the X2 port of the clock chip U1. The VCC2 port of the clock chip U1 is connected to the chip power supply VCC. The VCC1 port of the clock chip U1 Connect the positive connection of the battery BT, the ground wire of the GND port of the clock chip U1, the SCLK port, the I/O port, and the RST port of the clock chip U1 to the pins P4.1, P4.2, and P4 of the single-chip microcomputer U2 respectively. .3 connections.

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 real-time clock 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 real-time clock, 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 host computer communicates with the microprocessor through the UART2 port, modifies the calibration register parameters and terminal time in the three-phase special electric energy metering chip, and performs the operation of restoring factory settings; The processor communicates with the wireless communication module through the UART1 port, uploads real-time data and fault diagnosis data to the server, and receives commands issued by the server and the user in the form of SMS; the microprocessor is connected to the real-time clock through the XICLKIN port to obtain timing signals; The controller 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 ADC converter inside the microprocessor for real-time sampling; The microprocessor is connected with a keyboard and a liquid crystal display to realize the functions of moving up, 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, historical information query, abnormal information query and system information. Information query.

As shown in Figure 2, the real-time clock includes a clock chip U1, a crystal oscillator Y1 and a battery BT. The microprocessor is a single-chip microcomputer U2. The crystal oscillator Y1 is connected to the X1 port and the X2 port of the clock chip U1, and the VCC2 port of the clock chip U1 is connected to the chip power supply VCC. The VCC1 port of the clock chip U1 is connected to the positive pole of the battery BT, the GND port of the clock chip U1 is grounded, and the SCLK port, I/O port, and RST port of the clock chip U1 are respectively connected to the pins P4.1 and P4 of the microcontroller U2. .2. Connect pin P4.3.

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. An electricity inspection terminal with a real-time clock, 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 electric energy metering chip, and battery voltage acquisition module and 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 the operation of restoring factory settings; the microprocessor communicates with the wireless communication module through the UART1 port, and The real-time data and fault diagnosis data are uploaded to the server, and receive the commands issued by the server and the user in the form of SMS; the microprocessor is connected to the real-time clock through the XICLKIN port to obtain timing signals; the microprocessor is connected to the temperature sensor through the GPIO port; the microprocessor Through the USB port and the data memory, the data memory saves real-time power 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 a keyboard and a liquid crystal display; The real-time clock includes a clock chip U1, a crystal oscillator Y1 and a battery BT. The microprocessor is a single-chip microcomputer U2. The crystal oscillator Y1 is connected to the X1 port and the X2 port of the clock chip U1. The VCC2 port of the clock chip U1 is connected to the chip power supply VCC. The VCC1 port of the clock chip U1 Connect the positive connection of the battery BT, the ground wire of the GND port of the clock chip U1, the SCLK port, the I/O port, and the RST port of the clock chip U1 to the pins P4.1, P4.2, and P4 of the single-chip microcomputer U2 respectively. .3 connections. 2. A power inspection terminal with a real-time clock according to claim 1, characterized in that: the single-chip microcomputer U2 adopts a 16-bit RxSC structure, and is configured with: an 8Mhz high-speed crystal oscillator, a single hypotenuse A/D converter, and 16-bit timer with 3 capture/compare registers, two-channel serial communication interface circuit, hardware multiplier.