CN205404675U - Electricity inspection terminal with data storage - Google Patents

Abstract

The utility model relates to a power inspection terminal with data storage, 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 Current collection module and GPRS module.

Description

A power consumption inspection terminal with data storage

technical field

The utility model belongs to the field of electricity inspection, in particular to an electricity inspection terminal with data storage.

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 electricity consumption inspection terminal with data storage 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 current acquisition module and a GPRS module ,

The microprocessor is connected to the three-phase special electric energy metering chip through the handshake signal port SIG, the reset control port RESET and the port SPI, outputs control signals to the three-phase special electric energy metering chip, and reads the measurement parameter register in the three-phase special electric energy metering chip Data; the upper computer communicates with the microprocessor through the port UART2, 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 through the port UART1 Communicate with the GPRS 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 port XICLKIN to obtain timing signals; the microprocessor communicates with the temperature through the port GPIO The sensor is connected; the microprocessor is connected to the data memory through the port USB, and the data memory stores real-time electric energy parameters and fault diagnosis data; the battery current 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 LCD display.

The data memory is composed of a ferroelectric memory U1 and a data storage circuit. The ferroelectric memory U1 is connected to the microprocessor through the data storage circuit. The data storage circuit includes resistors R1, R2 and R3. The ports A0 and A1 of the ferroelectric memory U1 are And the port GND is connected to the ground wire, the port WP, port SCL and port SDA of the ferroelectric memory U1 are respectively connected to the port P6.5, port P6.6 and port P6.7 of the microprocessor, and the ports WP, port P6. The port SCL and the port SDA are respectively connected to the +5V power supply through the resistors R1, R2 and R3, and the port VCC of the ferroelectric memory U1 is directly connected to the +5V power supply.

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 data storage circuit circuit diagram of the data memory 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 current Acquisition module; 10: GPRS 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 data storage, 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 current acquisition module and a GPRS module,

The microprocessor is connected to the three-phase special electric energy metering chip through the handshake signal port SIG, the reset control port RESET and the port SPI, outputs control signals to the three-phase special electric energy metering chip, and reads the measurement 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 port UART2, 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 GPRS module through the port UART1, uploads the real-time data and fault diagnosis data to the server, and receives the commands issued by the server and the user in the form of SMS; the microprocessor connects with the real-time clock through the port XICLKIN to Acquire timing signals; the microprocessor is connected to the temperature sensor through the port GPIO; the microprocessor is connected to the data memory through the port USB, and the data memory stores real-time power parameters and fault diagnosis data; the battery current acquisition module sends the battery current signal to the ADC inside the microprocessor The converter performs 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 and historical information query , Abnormal information query and system information query.

As shown in Figure 2, the data memory is composed of a ferroelectric memory U1 and a data storage circuit. The ferroelectric memory U1 is connected to the microprocessor through the data storage circuit. The data storage circuit includes a resistor R1, a resistor R2, and a resistor R3. The ferroelectric memory U1 The port A0, port A1 and port GND of the ferroelectric memory U1 are connected to the ground wire, and the port WP, port SCL and port SDA of the ferroelectric memory U1 are respectively connected to the port P6.5, port P6.6 and port P6.7 of the microprocessor. The port WP, port SCL and port SDA of the memory U1 are respectively connected to the +5V power supply through the resistors R1, R2 and R3, and the port VCC of the ferroelectric memory U1 is directly connected to the +5V power supply.

Among them, the ferroelectric memory model is FM24C512.

Among them, the microprocessor is a single-chip microcomputer, the model is MSP430F149.

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 (3)

1. the power utility check terminal preserved with data, 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 current acquisition module and GPRS module

Microprocessor is connected with the special electric energy computation chip of three-phase by handshake port SIG, reseting controling end mouth RESET and port SPI, to the special electric energy computation chip output control signal 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 port UART2 and microprocessor communications, calibration register parameters and terminal time in the amendment special electric energy computation chip of three-phase, and carries out the operation of factory reset, read-write data storage register value；Microprocessor is by port UART1 and GPRS 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 port x ICLKIN, to obtain clock signal；Microprocessor is connected with temperature sensor by port GPIO；Microprocessor passes through port USB and data storage, and data storage preserves real-time electrical energy parameter and fault diagnosis data；Battery current signal is sent into microprocessor internal ADC transducer and is carried out real-time sampling by battery current acquisition module；Microprocessor is connected to keyboard and liquid crystal display；

Data storage is made up of ferroelectric memory U1 and data storage circuit, ferroelectric memory U1 is connected with microprocessor by data storage circuit, data storage circuit includes resistance R1, resistance R2 and resistance R3, the port A0 of ferroelectric memory U1, port A1 and port GND connects ground wire, the port WP of ferroelectric memory U1, port SCL and port SDA respectively with the port P6.5 of microprocessor, port P6.6 and port P6.7 connects, the port WP of ferroelectric memory U1, port SCL and port SDA is respectively through resistance R1, resistance R2 and resistance R3 and+5V power supply are connected, the port VCC of ferroelectric memory U1 is directly connected with+5V power supply.

2. a kind of power utility check terminal preserved with data according to claim 1, it is characterised in that: ferroelectric memory model is FM24C512.

3. a kind of power utility check terminal preserved with data according to claim 1, it is characterised in that: microprocessor is single-chip microcomputer, and model is MSP430F149.