Multifunctional intelligent working condition monitoring terminal

Abstract

The invention belongs to the technical field of monitoring mechanisms, and relates to a multifunctional intelligent working condition monitoring terminal. The multifunctional intelligent working condition monitoring terminal comprises a core processing unit which adopts a hardware platform constructed by a 32-bit CPU (Central Processing Unit), a large-capacity memory and a high-precision clock chip; the electrical parameter monitoring module is connected to the core processing unit, and the electrical parameter monitoring module adopts a special metering chip to carry out alternating current sampling; the state monitoring module is connected to the core processing unit and provides at least two switching value input channels; the analog quantity monitoring module is connected to the core processing unit; the data acquisition communication unit is connected to the core processing unit; the remote communication module supports 4G, 3G or GPRS (General Packet Radio Service) wireless communication modes; and a power management module. According to the invention, the acquisition requirements of electric parameters, state quantities and analog quantities are met, and most industrial monitoring scenes are covered. The invention provides an on-line monitoring terminal which is high in integration level, comprehensive in function and capable of supporting intelligent alarm.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of monitoring mechanism, and relates to a multifunctional intelligent working condition monitoring terminal. BACKGROUND

[0002] In the field of industrial production and environmental protection monitoring, it is crucial to monitor the running state (such as three-phase current, voltage, power) of power equipment, production environment parameters (such as temperature, PH value) and switch state in real time. Traditional monitoring equipment is often single-function, or only supports local data acquisition, and cannot realize remote real-time transmission and intelligent analysis of data. In addition, the existing terminal has deficiencies in communication mode, protocol compatibility, power supply reliability and multi-device networking, and it is difficult to meet the needs of complex industrial sites for high reliability, multi-function integration and low-cost networking. For example, in the scene where multiple loops need to be monitored, it is usually necessary to configure an independent communication terminal and SIM card for each loop, which is costly and scattered in data management. At the same time, when the device encounters abnormal conditions such as power failure and parameter overrun in the field, it cannot notify the management personnel in the first time, and lacks an effective early warning mechanism.

[0003] Therefore, there is an urgent need for an online monitoring terminal with high integration, comprehensive functions, reliable communication and intelligent alarm support. SUMMARY

[0004] The main purpose of the present application is to provide a multifunctional intelligent working condition monitoring terminal to overcome the deficiencies in the prior art.

[0005] To achieve the above-mentioned purpose, the embodiment of the present application provides a multifunctional intelligent working condition monitoring terminal, which comprises: a core processing unit, a hardware platform constructed by a high-performance 32-bit CPU, a large-capacity storage and a high-precision clock chip.

[0006] An electric parameter monitoring module connected to the core processing unit is used to collect three-phase current, voltage, power and electric quantity data, and the electric parameter monitoring module uses a special metering chip for AC sampling.

[0007] A state monitoring module connected to the core processing unit provides at least two switch quantity input channels for monitoring external state signals.

[0008] An analog quantity monitoring module connected to the core processing unit provides at least two 4-20mA analog signal input channels for monitoring temperature or PH value analog signal.

[0009] A data acquisition communication unit connected to the core processing unit is used to communicate with an external data collector, supports a maximum of 32 data collectors for collection, and is compatible with multiple communication protocols.

[0010] A remote communication module is modularly designed and connected to the core processing unit, supports 4G, 3G or GPRS wireless communication mode, and is used for data interaction with a remote host station.

[0011] A power management module is used for power supply of the terminal, supports power supply of any one phase of three-phase alternating voltage to maintain normal work, and has the ability to resist line ground fault.

[0012] Further, the data acquisition communication unit comprises an RS485 interface and / or a micro-power Lora wireless module.

[0013] Further, the data acquisition communication unit is compatible with at least one of DL / T645-1997, DL / T645-2007 and Modbus communication protocol, and supports protocol library extension.

[0014] Further, the remote communication module supports HJ212-2017 pollutant online monitoring system data transmission standard and Q / GDW 1376.1-2013 "Host Station and Acquisition Terminal Communication Protocol".

[0015] Further, the power management module further comprises a backup battery, which can maintain the terminal to continue running for a preset time after the loss of alternating current power supply and automatically shut down.

[0016] Further, the core processing unit is further connected with a clock chip, and the clock chip is powered by an independent power supply and supports remote time setting through the remote host station.

[0017] Further, the application provides a multifunctional intelligent working condition monitoring terminal, which further comprises a local debugging interface for connecting external equipment for on-site debugging.

[0018] A program upgrade module supports online remote program upgrade through the remote host station and supports breakpoint resume function.

[0019] A display unit is used for local viewing of various monitoring parameters of the terminal.

[0020] Further, the core processing unit is configured to set upper limit and lower limit warning values for data collected by the electric parameter monitoring module, alarm when the data abnormally reaches the warning value, set a threshold value for signals collected by the analog quantity monitoring module, alarm when the signal value exceeds the threshold value, monitor the input signal change of the state monitoring module in real time and alarm, and send the generated alarm information to the remote host station in real time through the remote communication module, and push notification through a management platform, an APP or a public number.

[0021] Further, the alarm information includes a power outage alarm, when a power supply line outage or power restoration event is monitored, an alarm information is automatically sent to the master station.

[0022] Further, the terminal is used as a host, communicates with other monitoring terminals as extensions through the data acquisition communication unit, and interacts with the master station system through a remote communication channel after the monitoring data of multiple loops are summarized.

[0023] Further, the terminal adopts industrial-grade devices.

[0024] Compared with the prior art, the advantages of the present application include: the present application provides a multifunctional intelligent working condition monitoring terminal, which solves the acquisition demand of electric parameters, state parameters and analog parameters in one station, covering most industrial monitoring scenes. The data acquisition communication unit supports wired RS485 and wireless Lora, which is suitable for different field wiring conditions; the remote communication adopts modular 4G / 3G design, which is easy to maintain and upgrade, and is compatible with various national standard protocols, and is easy to access to the existing platform. The industrial-grade design, three-phase power supply redundancy, independent clock power supply, backup battery and other designs ensure that the terminal can still work stably and accurately record under the conditions of power fluctuation, failure or even short-term power failure. It has multi-parameter intelligent over-limit alarm and multi-channel real-time push function, realizes the transformation from "passive query" to "active alarm". The unique "host-extension" networking mode allows multiple loops to share a 4G channel and a SIM card, which greatly reduces the construction and operation cost of the multi-loop monitoring system. It supports local and remote debugging, online upgrading and other functions, which greatly reduces the difficulty and cost of later maintenance. In summary, the present application provides an online monitoring terminal with high integration, comprehensive functions, reliable communication and intelligent alarm support. BRIEF DESCRIPTION OF DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings are for purposes of illustration only and are not considered a limitation of the present application. Furthermore, like reference numerals are used to denote identical components throughout the drawings. In the drawings: Fig. 1 A block diagram of data acquisition and core processing in a multifunctional intelligent working condition monitoring terminal provided by an embodiment of the present application.

[0026] Fig. 2 A block diagram of communication channel and external device interaction in a multifunctional intelligent working condition monitoring terminal provided by an embodiment of the present application.

[0027] Fig. 3 A power supply block diagram in a multifunctional intelligent working condition monitoring terminal provided by an embodiment of the present application. DETAILED DESCRIPTION

[0028] In view of the deficiencies in the prior art, the present inventors have long studied and practiced to propose the technical solution of the present application. The technical solution, its implementation process and principles will be further explained as follows.

[0029] The present application will be further described in detail below with specific embodiments, and the given examples are only for illustrating the present application, not for limiting the scope of the present application. The examples provided below can be used as a guide for further improvement by those skilled in the art, and do not constitute any limitation on the present application in any way.

[0030] As shown in Figs. 1-3 The present application provides a multifunctional intelligent working condition monitoring terminal, which comprises: a core processing unit, a hardware platform constructed with a high-performance 32-bit CPU, a large-capacity storage and a high-precision clock chip.

[0031] An electric parameter monitoring module connected to the core processing unit is used to collect three-phase current, voltage, power and electric quantity data, and the electric parameter monitoring module uses a special metering chip for AC sampling.

[0032] A state monitoring module connected to the core processing unit provides at least two switching value input channels for monitoring external state signals.

[0033] An analog quantity monitoring module connected to the core processing unit provides at least two 4-20mA analog signal input channels for monitoring temperature or PH value analog signal.

[0034] A data acquisition communication unit connected to the core processing unit is used to communicate with external data collectors, supports the collection of a maximum of 32 data collectors, and is compatible with multiple communication protocols; the data acquisition communication unit comprises an RS485 interface and / or a micro-power Lora wireless module; the data acquisition communication unit is compatible with at least one of DL / T645-1997, DL / T645-2007 and Modbus communication protocols, and supports protocol library extension.

[0035] A remote communication module designed in a modular manner and connected to the core processing unit supports 4G, 3G or GPRS wireless communication mode, and is used to interact with a remote master station; the remote communication module supports HJ212-2017 pollutant online monitoring system data transmission standard and Q / GDW 1376.1-2013 "Master Station and Acquisition Terminal Communication Protocol".

[0036] The power management module is used for supplying power for the terminal, supports power supply of any one phase of three-phase alternating voltage to maintain normal work, and has the ability of resisting line ground fault; the power management module further comprises a backup battery, when the alternating current power supply loses power, the backup battery can maintain the terminal to continue to run for a preset time and then automatically shut down.

[0037] In some embodiments, the core processing unit is further connected with a clock chip, the clock chip is powered by an independent power supply, and remote time setting is supported through a remote master station.

[0038] In addition, in some typical embodiments, the multifunctional intelligent working condition monitoring terminal further comprises: a local debugging interface, which is used for connecting external equipment for on-site debugging; a program upgrading module, which supports online remote program upgrading through a remote master station and supports breakpoint resume transmission function; and a display unit, which is used for locally viewing various monitoring parameters of the terminal.

[0039] In some embodiments, the core processing unit is configured to: set upper limit and lower limit warning values for data collected by the electric parameter monitoring module, and alarm when the data abnormally reaches the warning values; set threshold values for signals collected by the analog quantity monitoring module, and alarm when the signal values exceed the threshold values; monitor the input signal changes of the state monitoring module in real time and alarm; send the generated alarm information to the remote master station in real time through the remote communication module, and push the alarm information through various ways such as a management platform, an APP or a public number; and the alarm information includes power-off alarm, when a power-off or power-on event of a power supply line is monitored, an alarm information is automatically sent to the master station.

[0040] In some embodiments, the terminal is used as a host, communicates with other monitoring terminals as extensions through the data acquisition and communication unit, and interacts with the master station system through a remote communication channel after the monitoring data of multiple circuits are summarized.

[0041] In specific implementation, the terminal adopts industrial-grade devices.

[0042] In order to better understand the technical solutions of the present application, the following will be discussed in detail in combination with specific embodiments.

[0043] The multifunctional intelligent working condition monitoring terminal of the embodiment comprises a main circuit board, on which a core processing unit, a large-capacity FLASH memory and a clock chip are integrated. The core processing unit is an ARM Cortex-M series 32-bit processor, and the clock chip is provided with a replaceable independent battery.

[0044] The electric parameter monitoring module adopts a special metering chip, which is ATT7022E, and is connected to a three-phase power line through a current transformer (CT) and a voltage transformer (PT) to realize high-precision measurement. The state quantity monitoring module is connected to two passive switching signals through an optical coupling isolation circuit. The analog quantity monitoring module converts two 4-20mA current signals into voltage signals for CPU collection through a precision sampling resistor.

[0045] The data acquisition communication unit includes two RS485 interfaces, adopts a standard RJ45 or terminal interface, and can be optionally equipped with a plug-in micro-power Lora wireless module. The unit supports DL / T645, Modbus and other protocols, and can communicate with various intelligent instruments and data acquisition devices.

[0046] The remote communication module adopts a 4G module with a Mini-PCIe interface, which can be easily replaced to support different operator networks or future upgrade to 5G. The power management module takes power from a three-phase line, converts it through a wide-voltage input AC / DC power chip, and supplies power to the system, and is equipped with a large-capacity lithium sub-battery as a backup power supply. When the alternating current is powered off, the system can detect and switch to battery power, continue to run for about 2 minutes, orderly shut down, and report alarm information.

[0047] The terminal software has built-in task logic, and the user can set the upper and lower limits of current, power, and the upper limit of temperature for each loop through the master station platform. The terminal compares the collected data with the set value in real time, and once the limit is exceeded, an alarm event is generated immediately, and is actively reported to the master station platform through the 4G network. The platform can then push messages to the bound mobile phone APP and WeChat public number.

[0048] The above only describes the preferred embodiments of the present application, but the present application is not limited to the specific details in the above embodiments, and various simple modifications and improvements can be made to the technical solutions of the present application without departing from the technical concept of the present application. However, these simple modifications and improvements still belong to the protection scope of the present application.

Claims

1. A multifunctional intelligent working condition monitoring terminal, characterized in that, It comprises: a core processing unit; an electric parameter monitoring module connected to the core processing unit, used for collecting three-phase current, voltage, power and electric quantity data; a state monitoring module connected to the core processing unit, providing at least two switching value input channels for monitoring external state signals; an analog quantity monitoring module connected to the core processing unit, used for monitoring temperature or PH value analog signal; a data acquisition communication unit connected to the core processing unit, used for communicating with external data collectors, compatible with multiple communication protocols; a remote communication module connected to the core processing unit, used for data interaction with a remote master station; a power management module, used for powering the terminal and having the ability to resist line ground fault.

2. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, The data acquisition communication unit comprises an RS485 interface and / or a micro-power Lora wireless module.

3. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, The data acquisition communication unit is compatible with at least one of DL / T645-1997, DL / T645-2007 and Modbus communication protocols, and supports protocol library extension.

4. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, The power management module further comprises a backup battery, which can maintain the terminal to continue running for a preset time after AC power supply loss and then automatically shut down.

5. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, The core processing unit is further connected with a clock chip, which is powered by an independent power supply and supports remote time setting through the remote master station.

6. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, It further comprises: a local debugging interface, used for connecting external equipment for on-site debugging; a program upgrade module, supporting online remote program upgrade through the remote master station and supporting breakpoint resume function; a display unit, used for local viewing of various monitoring parameters of the terminal.

7. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, The core processing unit is configured to set upper and lower limit warning values for the data collected by the electric parameter monitoring module, alarm when the data anomaly reaches the warning value; set a threshold value for the signal collected by the analog quantity monitoring module, alarm when the signal value exceeds the threshold value; real-time monitor the input signal change of the state monitoring module and alarm; real-time upload the generated alarm information to the remote master station through the remote communication module, and push notification through multiple ways such as management platform, APP or public number.

8. The multifunctional intelligent working condition monitoring terminal according to claim 7, characterized in that, The alarm information comprises power-off alarm, when a power-off or power-on event of the power supply line is monitored, an alarm information is automatically uploaded to the master station.

9. The multifunctional intelligent working condition monitoring terminal according to claim 1, characterized in that, The terminal is used as a host, communicates with other monitoring terminals as extensions through the data acquisition communication unit, and interacts with the master station system through a remote communication channel after collecting monitoring data of multiple circuits.

10. The multifunctional smart working condition monitoring terminal according to claim 1, characterized in that, The terminal adopts industrial-grade devices.

Images