CN210605434U

CN210605434U - Wisdom safety power consumption monitor terminal

Info

Publication number: CN210605434U
Application number: CN201922097398.6U
Authority: CN
Inventors: 李顺江
Original assignee: Kunming Inpil Science & Technology Co ltd
Current assignee: Kunming Inpil Science & Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-05-22
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to the technical field of power equipment monitoring, in particular to an intelligent safety power utilization monitoring terminal; the device comprises a sensor, an acquisition module, a single chip microcomputer, a communication module and a PC (personal computer) terminal which are sequentially connected, wherein the sensor detects original data and sends the original data to the acquisition module, the acquisition module is processed and sent to the single chip microcomputer, the single chip microcomputer processes the acquired data and transmits the processed data to the PC terminal through the communication module for display, a PWM (pulse-width modulation) timer, an AD (analog-to-digital) converter and a memory are arranged in the single chip microcomputer, the single chip microcomputer is connected with the communication module through an APB (advanced peripheral bus), and the single chip microcomputer is further connected with a key; the utility model provides a transmission that exists among the present power consumption terminal unreliable, communication mode and function singleness, can not remote control, silent light alarm's function scheduling problem to use electric terminal safe and reliable more, and greatly reduced manpower and materials resources and conflagration hidden danger.

Description

Wisdom safety power consumption monitor terminal

Technical Field

The utility model relates to a power equipment monitoring technology field specifically is wisdom safety power consumption monitor terminal.

Background

The intelligent safety power utilization terminal is used as a main component of an intelligent safety power utilization system, can analyze and process acquired data, displays information of a local information management terminal through a humanized interactive interface, receives an alarm signal from a detector, sends out an acoustic alarm signal and an optical alarm signal, and indicates an alarm type and an alarm value. The front body of the intelligent safety electric terminal is an electric energy meter, a fire monitoring device and an electric fire monitoring device, and the intelligent safety electric terminal is a product combined by the three types of terminal devices.

1. The conventional electric energy meter only has a single electric energy collecting function, needs manual meter reading, and is difficult to implement, large in workload and high in error rate; the function is single, can not satisfy people's life demand.

2. The existing fire-fighting monitoring equipment is only arranged in a fire-fighting monitoring room, and the alarm and the fault can be checked in a manual mode; when people alternate, the situation of neglecting part of alarm information is easy to occur, and the transmission of the alarm information has limitation; only adopt the CAN communication mechanism, though CAN bus data volume is big, CAN withdraw from automatically when breaking down, and communication distance is far away, and communication is reliable, but the module also need join in marriage two group lines of connection line and power cord to increase wiring cost and degree of difficulty, also made the poor stability of fire control supervisory equipment. Although the alarm device has the acousto-optic alarm function, the alarm information cannot be timely transmitted to a user, when the alarm information is excessive, the key is required to be used for checking one by one, and the work progress is slow and errors are easy to occur.

The existing electrical fire monitoring equipment only adopts an RS485 communication mode, although the RS485 communication mode can ensure data bandwidth and communication quality, each module needs to be connected with two groups of wires including a communication wire and a power wire, when the data volume of the module is large, the failure rate is high, when a single module has communication failure, the whole communication line is possibly paralyzed, and the failure query is difficult. The electric fire monitoring equipment can monitor and collect temperature and residual current information and store the information, but when looking up the information of a certain detector, a large amount of time is needed for searching; one monitoring device can be connected with a plurality of detectors, but the demand of the detectors is limited, when the number of the detectors is large, a plurality of electrical fire monitoring devices need to be installed, the installation difficulty is increased, and the space demand is increased. Therefore, it is necessary to provide a new method to solve the above problems.

Communication technologies in use today include CAN, RS485, wifi, zigbee, GPRS, etc.; CAN, RS485, wifi, zigbee and GPRS in the communication technologies are widely applied, CAN communication is a wired communication technology, data transmission speed is high, transmission distance is long, the construction engineering period is long, cost is high, and difficulty in line upgrading and reconstruction is high; the RS485 communication technology is wired communication, the noise resistance and the interference resistance are high, the transmission rate is high in short-distance and low-baud rate serial communication, the modules need to be connected through 485 interfaces, when the data volume of the modules is large, the fault rate is high, and communication faults occur in a single module, so that the whole communication line is possibly broken down; although the wifi communication technology is faster than other two communication technologies in transmission rate, the signal transmission distance is shorter, the transmission rate is inversely proportional to the access quantity, and the wifi communication technology is only suitable for small places such as families and dormitories and is more limited; the transmission distance of the zigbee communication technology is longer than that of wifi, but the transmission speed is slow, and the bandwidth is narrow; GPRS has high transmission rate and short access time; but the packet loss problem is serious, and the transmission rate is related to the real environment.

The prior art does not connect the terminal equipment with the Internet and can not remotely control the terminal equipment. The prior terminal equipment mostly adopts a singlechip as a main control chip to collect, record and store data, and has no communication module and display module, thus being incapable of realizing remote transmission and remote monitoring of the terminal equipment data.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a transmission that exists is unreliable, communication mode and function singleness among the main solution present power consumption terminal, can not remote monitoring terminal equipment, noiseless light warning and individualized human-computer interaction interface display device parameter's problem to make wisdom power consumption terminal safe and reliable more, and the manpower and materials resource expenditure that significantly reduces and reduction fire hazard.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

wisdom safety power consumption monitor terminal, including the sensor, collection module, singlechip, communication module and the PC end that connect gradually, the sensor detects raw data and sends for collection module, and collection module sends the singlechip to through handling, and the singlechip is handled collection data and is transmitted for the PC end through communication module and show, be equipped with PWM timer, AD converter and memory in the singlechip, the singlechip passes through the APB bus and is connected with communication module, the singlechip still has key circuit, audible-visual annunciator and 2.8 cun TFT color screen through the APB bus connection.

Further, the sensor comprises a residual current transformer for detecting electric leakage, a voltage transformer for detecting voltage, a current transformer for detecting current and a temperature sensor for detecting temperature.

Furthermore, the acquisition module comprises a main control unit and an interface unit which are connected with each other, the interface unit is connected with a peripheral sensor and used for sending original data detected by the sensor to the main control unit, and the main control unit is used for processing the original data and transmitting the data to the single chip microcomputer.

Specifically, the interface type of the interface unit may adopt a bus CAN or RS 485.

In the present invention, the communication module is NB-IoT wireless communication module, LORA wireless communication module; when the quality of the wireless communication signal is weak, a (CAN/RS485) wired communication module CAN be selected. The NB/LORA wireless communication module has the advantages of long transmission distance, high transmission rate, short construction engineering period and low cost, and is convenient for upgrading and transforming terminal equipment and platforms; due to the fact that the application places are wide, and the CAN/RS485 wired communication and wireless communication technologies CAN be combined in some places with severe environments and weak wireless signal quality, and reliable transmission is guaranteed.

In addition, still include power module, power module includes the switching power supply module who is connected with 220V and the linear constant voltage power supply module who is connected with switching power supply module, switching power supply module is step-down constant voltage power supply, and it converts 220V alternating current into 5V's direct current, linear constant voltage power supply module converts 5V direct current into 3.3V direct current to supply power for collection module, singlechip and 2.8 cun TFT color screen.

The utility model has the beneficial technical effects that:

1. the utility model adopts wireless communication, has high reliability and wide coverage range, does not need a large amount of wiring, reduces the construction difficulty and reduces the construction time;

2. the utility model can not only set the alarm threshold value and alarm percentage of temperature, residual current, voltage, current and sudden change current, but also set parameters without spending a lot of time for specific staff when the data information needs to be updated; the danger of the circuit aging area is large, the utility model ensures the personal safety of the working personnel, reduces the error rate and saves the economic cost; and the switch can be remotely switched on and off, and can be remotely switched on/off when abnormal conditions exist, so that the power utilization safety of a user is guaranteed.

3. The utility model provides a color screen interface shows three-phase voltage, three-phase current, temperature, electric leakage, active power, reactive power, power factor, warning and fault record, and the button menu is looked over, is set up the alarm value and the warning percentage of voltage, electric current, temperature, residual current and sudden change electric current, and can set up local communication parameter and communication time, and humanized human-computer interaction interface provides more audio-visual experience for the user and feels.

4. The utility model discloses a hardware circuit adopts the electromagnetic compatibility design, possess remarkable electrical property, the reliable and stable operation of guarantee equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is the utility model discloses wisdom safety power consumption monitor terminal's block diagram.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 shows, the utility model provides a wisdom safety power consumption monitor terminal, including sensor 1, collection module 2, singlechip 3, communication module 7 and the PC end 8 that connects gradually, sensor 1 detects raw data and sends for collection module 2, and collection module 2 sends singlechip 3 through handling, and singlechip 3 handles the data collection and gives PC end 8 through communication module 7 transmission and show, be equipped with PWM timer 31, AD converter 32 and memory 33 in the singlechip 3, singlechip 3 is connected with communication module 7 through APB bus 4, the singlechip still is connected with keying circuit 9, audible-visual annunciator 10 and 2.8 cun TFT color screen 6 through APB bus 4. The single chip microcomputer adopts a main control chip with the model of STM32F103VCT6, and the STM32F103VCT6 main control chip adopts high performance

M3, 32-bit RISC core, operating frequency 72MHz, high speed embedded memory (flash up to 128KB, SRAM up to 64 KB). Three 12-bit AD converters, four universal 16-bit timers and two PWM (pulse width modulation) timers are arranged in the single chip microcomputer. The main control chip is provided with a high-speed AD converter to be matched with a peripheral high-precision detector for use, and the acquisition precision of the equipment and the conversion rate of the main control chip are further improved by adopting a fast Fourier algorithm, so that a foundation is laid for data communication; when collecting, analyzing and processing temperature and residual current parameters, the precision is higher and more stable than that of the same product. The main control module also comprises a peripheral key circuit which is composed of 5 keys, and the key is pressed to drive a key control program in the main control chip, so that the alarm threshold and the alarm percentage of other parameters such as voltage, current and residual current can be checked, set and modified through the keys.

As the utility model discloses specific embodiment, sensor 1 includes residual current transformer 11, the voltage transformer 12 that is used for detecting voltage that is used for detecting the electric leakage, temperature sensor 13 that is used for detecting the temperature, current transformer 14 that is used for detecting the electric current, collection module includes interconnect's main control unit 21 and interface unit 22, and interface unit 22 links to each other with the sensor 1 of peripheral hardware for the little signal transmission after the original data that measure sensor 1 and mutual-inductor conversion give the main control unit, it is right to be used for original data handles and gives the singlechip with data transmission. The interface type of the interface unit CAN adopt a CAN or RS485 bus, and CAN be selected according to the interface type of the sensor. The communication module is an NB-IoT wireless communication module and an LORA wireless communication module; when the quality of the wireless communication signal is weak, a (CAN, RS485) wired communication module CAN be selected. The NB and LORA wireless communication technologies are adopted, and the wireless communication module and the control module are combined to form a communication module. And the control module completes the communication between the equipment and the platform through the AT instruction. Compared with the common intelligent safe electricity utilization terminal, the utility model adds the electromagnetic compatibility technology on the typesetting and layout of the hardware circuit, thus ensuring reliable data transmission; and the influence of external environment factors on the terminal is reduced.

In addition, the power supply module comprises a switching power supply module 51 connected with 220V and a linear voltage-stabilized power supply module 52 connected with the switching power supply module 51, wherein the switching power supply module is a voltage-reducing voltage-stabilized power supply and converts 220V alternating current into 5V direct current, and the linear voltage-stabilized power supply module converts the 5V direct current into 3.3V direct current and supplies power to the acquisition module, the single chip microcomputer and the 2.8-inch TFT color screen.

The power supply is divided into a switching power supply module and a linear voltage-stabilized power supply module, provides a stable power supply for the terminal and guarantees the working performance of each component. The switching power supply adopts a voltage reduction and voltage stabilization power supply, 220V alternating current is mainly converted into 5V direct current in a circuit, the output text wave of the power supply is small, and the output has a short-circuit protection function. The linear voltage-stabilized power supply converts 5V direct current into 3.3V direct current to supply power for partial elements. The power supply circuit belongs to a digital-analog mixed circuit, and adopts a BL6522B metering chip as a main element, so that the module can output a stable and reliable power supply. BL6522B contains an on-chip power supply monitoring circuit that can continuously detect analog power supplies, and if the power supply voltage is less than 2.5 + -0.5%, the chip is not activated (i.e., not working), and this capability of BL6522B ensures that the device will maintain proper operation when powered up or powered down. Advanced material selection and advanced circuit design enable the integration level of a power supply system formed by the power supply module to be higher, the cost of software and hardware is reduced, and the performance of the power supply system is guaranteed.

The utility model discloses a 2.7 cun TFT color screen display parameter. The UI design and the bright color matching are used, so that the difference and the sameness among the parameters are shown, the difference among the parameters is convenient to distinguish, and the commonness among the parameters is found. Meanwhile, the TFT color screen provides a stable user interface and can output high-quality sawtooth-free characters; and providing a personalized human-computer interaction interface for a user. Parameters displayed by the 2.7-inch TFT color screen include leakage parameters, temperature parameters, current parameters, abrupt current, voltage parameters, communication selection, communication parameters, local machine parameters, submachine parameters and the like.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

This wisdom safety power consumption terminal's innovation point:

1. and (3) remotely monitoring other parameters such as temperature, residual current, three-phase voltage and current, remotely modifying various alarm thresholds and alarm percentages, and remotely switching on and off.

2. The communication mode of NB, LORA, CAN and RS485 CAN be selected.

3. The real-time values (parameters such as voltage, current, active power, reactive power, power factor, residual current and the like), alarm and fault data information and other parameter information of the terminal equipment can be remotely transmitted.

4. The detection range of the residual current is 200 mA-1000 mA; the temperature detection range is 0-140 ℃; the voltage of 220V and 380V can be detected, and when the voltage is larger than the range, the voltage transformer can be connected as required; the current detection range is 0-5A, and the current transformer can be connected with the current detection range according to requirements when the current detection range is larger than the current detection range.

5. The TFT color screen is adopted to display three-phase voltage, current, temperature, residual current, power factor, active power, reactive power, power factor, alarm and fault record, and the voltage, current, temperature, abrupt current and residual current alarm threshold value and alarm percentage can be modified through keys.

6. When parameter values such as temperature, residual current, sudden change electric current reach alarm value, the intelligent security power consumption self can send audible and visual alarm signal, and can transmit alarm information to cloud ware immediately, and the mode propelling movement alarm information of cloud ware with SMS, believe a little, phone, APP, PC end gives user and project person in charge (managers, maintainer).

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

Claims

1. Wisdom safety power consumption monitor terminal, its characterized in that, including the sensor, collection module, singlechip, communication module and the PC end that connect gradually, the sensor detects raw data and sends for collection module, and collection module sends the singlechip to through handling, and the singlechip is handled the data collection and is transmitted for the PC end through communication module and show, be equipped with PWM timer, AD converter and memory in the singlechip, the singlechip passes through the APB bus and is connected with communication module, the singlechip still has button circuit, audible-visual annunciator and 2.8 cun TFT color screens through the APB bus connection.

2. The intelligent safe electricity consumption monitoring terminal of claim 1, wherein the sensors comprise a residual current transformer for detecting electric leakage, a voltage transformer for detecting voltage, a current transformer for detecting current, and a temperature sensor for detecting temperature.

3. The intelligent safe electricity consumption monitoring terminal as claimed in claim 2, wherein the collection module comprises a main control unit and an interface unit, the main control unit and the interface unit are connected with each other, the interface unit is connected with a peripheral sensor and is used for sending raw data detected by the sensor to the main control unit, and the main control unit is used for processing the raw data and transmitting the data to the single chip microcomputer.

4. The intelligent safety electricity utilization monitoring terminal as claimed in claim 3, wherein the interface type of the interface unit CAN be bus CAN or RS 485.

5. The intelligent security electricity consumption monitoring terminal of claim 1, wherein the communication module is an NB-IoT wireless communication module, an LORA wireless communication module; when the quality of the wireless communication signal is weak, a (CAN/RS485) wired communication module CAN be selected.

6. The intelligent safe electricity consumption monitoring terminal as claimed in claim 1, further comprising a power module, wherein the power module comprises a switching power module connected with 220V and a linear voltage-stabilized power module connected with the switching power module, the switching power module is a voltage-reduced voltage-stabilized power supply and converts 220V ac power into 5V dc power, and the linear voltage-stabilized power module converts 5V dc power into 3.3V dc power and supplies power to the acquisition module, the single chip microcomputer and the 2.8-inch TFT color screen.