Intelligent distribution box system of cascade one-to-many communication architecture

Abstract

The invention relates to an intelligent distribution box system of a cascade one-to-many communication architecture, and aims to improve the safety and convenience of construction power utilization. The system realizes the functions of data acquisition, remote communication, man-machine interaction, remote control, automatic regulation and control and the like by integrating a microcontroller, a sensor and a communication module. The data acquisition function monitors key parameters in real time, and the remote communication function supports serial port and carrier communication and is compatible with Modbus-RTU and DLT645 protocols. The man-machine interaction function is realized through the cloud platform, the remote control function allows remote operation of the distribution box, and the automatic regulation and control function automatically triggers corresponding measures through abnormal data detection. The system adopts RS-485 and power line carrier communication, realizes one-to-many communication between the intelligent sensing terminal and the intelligent fusion terminal, and supports the intelligent sensing terminal with twenty circuit breakers and the intelligent fusion terminal with one hundred intelligent sensing terminals. In addition, the system has a remote upgrade function, supports the cloud platform to issue firmware update, and ensures normal operation of the module. According to the technical scheme, the system has remarkable advantages in the aspects of improving the response speed, reducing the field inspection frequency, automatically regulating and controlling and preventing accidents.

Description

Technical Field

[0001] The present invention belongs to the field of electrical equipment, and in particular relates to an intelligent distribution box system with a cascaded one-to-many communication architecture. Background Art

[0002] In the field of modern construction, temporary distribution boxes are core equipment for construction electricity. Their performance and safety are directly related to the smooth progress of construction and the life safety of construction workers. Improper operation of distribution boxes by construction workers may also lead to instability of the power system and even cause safety accidents.

[0003] The survey found that there are already some improved distribution boxes on the market. In terms of the outer shell design of the distribution box, China Railway Fourth Bureau Group Intelligent Electric Co., Ltd. has obtained a patent called "A combined distribution box" and Hangzhou Hangkai Intelligent Electric Co., Ltd. has obtained a patent called "A distribution box with waterproof and dustproof performance". Many patents have made multiple designs on the outer shell to improve the safety factor, and Guangzhou Longji Power Transmission and Distribution Equipment Co., Ltd. has a patent called "An intelligent power adjustment method and system for distribution boxes based on artificial intelligence" that uses AI control to intelligently adjust the power output of various circuits. The current distribution box still has room for improvement in terms of operation control, data reading and accident prevention. Therefore, the present invention develops an intelligent temporary distribution box system, and improving the safety and convenience of construction electricity has become a problem that the present invention needs to solve. Summary of the invention

[0004] Under the existing technical conditions, to realize the intelligence of temporary distribution boxes, the following technical challenges need to be solved: First, it is necessary to design a highly integrated hardware system that can adapt to various environmental conditions at the construction site and have good stability and reliability. Secondly, it is necessary to develop an efficient communication technology to achieve high-speed and stable data transmission between the distribution box and sensors and controllers. Thirdly, it is necessary to develop a set of intelligent algorithms that can monitor the working status of the distribution box in real time and promptly detect and handle various abnormal situations. Finally, it is necessary to design a user-friendly interface so that construction personnel can easily operate and monitor the distribution box.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows:

[0006] An intelligent distribution box system integrating multiple functions is characterized in that the module selects appropriate microcontrollers, sensors and communication modules, etc., and integrates functions such as data acquisition, remote communication, human-computer interaction, remote control, and automatic regulation.

[0007] The data acquisition function can collect key parameters in the distribution box system in real time, including voltage, current, power, power factor, grid frequency and electric energy, as well as ambient temperature, ambient humidity, smoke concentration, door lock information, etc. It also has temperature threshold detection, smoke threshold detection and circuit breaker abnormality detection, and can remotely use fire extinguisher start control, door lock control and circuit breaker opening and closing control; the remote communication function includes serial communication and carrier communication, and supports Modbus-RTU and DLT645 communication protocols; the human-computer interaction function is equipped with a master-slave communication mode, and the acquired slave data is reported to the cloud platform through the host, and an intuitive user interface is provided on the cloud platform to facilitate on-site operation and parameter setting; the remote control function can issue corresponding instructions through the cloud platform to realize remote opening and closing, remote unlocking, remote start of fire extinguisher and other operations; the automatic control function detects abnormal data and correctly and automatically triggers fire extinguishers, alarms and other functions.

[0008] As an optimal technical solution, the module adopts a master-slave communication mode, with the intelligent sensing terminal as the slave, intelligently supports power line carrier communication, supports data caching, breakpoint resume transmission, supports 2-way switch input and output, supports 1-way ADC input, and has three-way isolated 485, which is convenient for establishing communication with various smart devices.

[0009] As a preferred technical solution, the carrier communication function is a communication method for the intelligent fusion terminal and the intelligent acquisition terminal, which uses modulation technology to carry data signals to the current or voltage of the power line. This modulation allows multiple signals to be transmitted simultaneously on the same power line without interfering with each other.

[0010] As the preferred technical solution, the intelligent sensing terminal coordinates the dispatch of intelligent devices such as door locks, temperature and humidity sensors, smoke sensors, and molded case circuit breakers in the distribution box, and supports the transmission of data from intelligent devices to the intelligent fusion terminal via power carrier.

[0011] As a preferred technical solution, the intelligent sensing terminal connects to the molded case circuit breaker via 485, supports multiple molded case circuit breakers to be connected online at the same time, realizes one-to-many acquisition of power data, and improves the use efficiency of the distribution box.

[0012] As the preferred technical solution, the host acts as an intelligent fusion terminal and uses power carrier communication to achieve one intelligent fusion terminal corresponding to multiple intelligent sensing terminals, realize one-to-many acquisition of multiple distribution box data, and accurately read specific information through address differentiation.

[0013] As an optimal technical solution, the intelligent fusion terminal accurately sends control instructions to the corresponding sensing terminal through the corresponding address, so as to realize remote control of circuit breaker opening and closing, remote control of fire extinguisher switch, and remote control of door lock opening.

[0014] As the preferred technical solution, through the connection between the cloud platform and the intelligent fusion terminal, all data information is read on the cloud platform, and specific control instructions are issued on the cloud platform to achieve accurate and intelligent operation reading.

[0015] As a preferred technical solution, the remote communication function includes a remote upgrade function, which supports the cloud platform to send communications for firmware updates, and the remote upgrade function adopts the DLT645 communication protocol;

[0016] As a preferred technical solution, the remote upgrade function has its own verification for each package of upgrade data. When the program upgrade is suspended due to an accident, the original program will not be overwritten, thus ensuring the normal operation of the module.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention supports multi-point communication through the RS-485 standard, supports one intelligent sensing terminal corresponding to up to 20 circuit breakers, and realizes one intelligent fusion terminal to obtain up to 100 intelligent sensing terminals through the multi-point communication capability of the carrier, which has stronger integration capabilities in a real sense. After the cloud platform is connected to the intelligent fusion terminal, it only needs to specify the corresponding intelligent sensing terminal address or molded case circuit breaker address to accurately obtain any specified data of any intelligent sensing terminal or molded case circuit breaker.

[0019] 2. The present invention has two remote communication modes: serial communication and carrier communication, supports Modbus-RTU and DLT645 dual protocols, can realize intelligent interconnection between devices and remote data collection for different application scenarios, perform fault diagnosis, status monitoring and parameter configuration in time, reduce the frequency of on-site inspections, and improve response speed.

[0020] 3. The present invention has automatic control. By equipping with peripherals such as intelligent fire extinguishers, smoke alarms, temperature and humidity sensors, it can automatically trigger fire extinguishers, alarms and other functions by detecting abnormal data. At the same time, the cloud platform can also obtain alarm data to avoid on-site accidents in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a functional principle block diagram of an embodiment of the present invention; DETAILED DESCRIPTION

[0022] In order to more accurately describe the embodiments of the invention, the present invention provides corresponding drawings. These drawings are part of the disclosure of the present invention. They are mainly used to show the embodiments and are combined with the description in the specification to explain the working principle of the embodiments. By referring to these contents, those skilled in the art should be able to understand other possible implementations of the present invention and their advantages. The components in the figures are not drawn according to the actual scale, and similar components are usually represented by the same symbols. Next, the embodiments of the present invention will be described in detail in combination with the drawings and specific implementations. Please refer to the drawings to understand the specific embodiments of the present invention.

[0023] It should be noted that in the description of the present invention, unless otherwise clearly defined, the terms "set", "install", "connected" and "connected" should be understood as expressions in a broad sense. This means that they can refer to a fixed or detachable connection, or a connection as a whole; it can be a mechanical connection, a direct connection, or an indirect connection through some kind of medium; it can also be an internal connection between two elements. For those skilled in the art, the specific meanings of these terms in the present invention should be understood according to the specific context.

[0024] like Figure 1 An intelligent distribution box system integrating multiple functions is shown, including a peripheral information acquisition module, a fault detection module, a storage module, a power carrier communication module and a networking communication module.

[0025] The peripheral information acquisition module includes an intelligent fire extinguisher, a molded case circuit breaker, a temperature and humidity sensor, a smoke alarm, and an intelligent door lock. The intelligent fire extinguisher is connected to the intelligent sensing terminal via RS485, and can set the thresholds of temperature, humidity, and smoke, alarm-related attributes, and corresponding switches. The fire extinguisher switch can be controlled by issuing instructions.

[0026] The molded case circuit breaker is used to collect data including real-time voltage, current, power, power factor, grid frequency and electric energy. It is connected to the intelligent sensing terminal through RS485 and can control the opening and closing of the molded case circuit breaker by issuing instructions.

[0027] In order to improve the utilization efficiency, it is necessary to connect to up to 20 circuit breakers on one intelligent sensing terminal at the same time. By utilizing the parallel characteristics of RS485, the specified data of the corresponding circuit breaker can be obtained by polling according to the address. The circuit breaker uses the dlt645 protocol to send the corresponding command identification code to obtain the corresponding data.

[0028] The temperature and humidity sensor is used to obtain the temperature and humidity data in the distribution box. It is connected to the intelligent sensing terminal through SPI communication to monitor the temperature and humidity status in the distribution box.

[0029] The smoke alarm is used to obtain the smoke value and monitor the smoke status in the distribution box.

[0030] The smart door lock is connected to the intelligent sensing terminal via RS485 to obtain the closing status of the distribution box and control the unlocking by issuing instructions.

[0031] The function of the fault detection module is to detect the normal operation functions, data communication processes, and environmental abnormalities of all peripherals, and to report alarms and automatically handle problems after detection.

[0032] Furthermore, the alarm content includes whether all peripherals can obtain data normally, whether the uplink and downlink data have a response, and whether the temperature, humidity and smoke detection have reached the threshold.

[0033] In the embodiment, the storage module uses the internal flash storage of the single-chip microcomputer and the external gd25q40 storage chip, and the stored data include the designated addresses of various communication modules, various electric energy data stored in log form, fault events stored in log form and corresponding data, and software and hardware version numbers.

[0034] Furthermore, the log is used to obtain the historical working status after a period of no detection. The normal log is recorded every hour, and the content includes the current year, month, day, hour, and minute, the current real-time voltage, current, power, power factor, grid frequency, and power data, the opening and closing status of the smart door lock, the opening and closing status of the molded case circuit breaker, the use of the fire extinguisher, the temperature and humidity data, and the smoke sensor data. The abnormal event log is recorded when triggered, and the content includes the previous year, month, day, hour, and minute, the type of the current triggering event content, the current real-time voltage, current, power, power factor, grid frequency, and power data, the opening and closing status of the smart door lock, the opening and closing status of the molded case circuit breaker, the use of the fire extinguisher, the temperature and humidity data, and the smoke sensor data.

[0035] Furthermore, when you need to obtain the historical working status, you only need to issue an acquisition command to read all the logs from the storage chip. At the same time, all logs will be automatically reported once every 24 hours. The upper limit of the log is 256 in total, which are stored in sectors, one sector per log. When the number of logs is reached, they are stored in an overwritten manner.

[0036] In the embodiment, the power carrier module uses PLC communication, configures the broadcast of the specified address through the serial port in the intelligent fusion terminal, configures the specified address through the serial port using DLT645 in the intelligent sensing terminal, uses the transparent transmission function of the carrier module, and uses a custom protocol to transmit field data, issue instructions, remote upgrades and log information.

[0037] Furthermore, in the custom protocol, the intelligent fusion terminal is used as the host and the intelligent sensing terminal is used as the slave. The slave has a unique 6-bit address, and the host needs to process the slave content after identifying the address. After the host sends the request, it waits for 1 second. If there is no reply, it will resend the request. After 3 retries, if there is still no reply, it determines that the device is offline and jumps to the next device. The slave generally does not actively send requests, but waits for the host to send a request before replying, but it needs to actively send when an abnormal event log appears.

[0038] The networking communication module connects to the ONENET server via 4G and uses the MQTT protocol to transmit data. The data content contains all the content from the intelligent sensing terminal, including all data and log content from all peripherals and the issuance of control instructions.

[0039] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An intelligent distribution box system with a cascaded one-to-many communication architecture, characterized in that This module selects appropriate microcontrollers, sensors and communication modules, etc., and integrates functions such as data acquisition, remote communication, human-computer interaction, remote control, and automatic regulation. The data acquisition function can collect key parameters in the distribution box system in real time, including voltage, current, power, power factor, grid frequency and electric energy, as well as ambient temperature, ambient humidity, smoke concentration, door lock information, etc. It also has temperature threshold detection, smoke threshold detection and circuit breaker abnormality detection, and can remotely use fire extinguisher start control, door lock control and circuit breaker opening and closing control; the remote communication function includes serial communication and carrier communication, and supports Modbus-RTU and DLT645 communication protocols; the human-computer interaction function is equipped with a master-slave communication mode, and the acquired slave data is reported to the cloud platform through the host, and an intuitive user interface is provided on the cloud platform to facilitate on-site operation and parameter setting; the remote control function can issue corresponding instructions through the cloud platform to realize remote opening and closing, remote unlocking, remote start of fire extinguisher and other operations; The automatic control function detects abnormal data and correctly and automatically triggers functions such as fire extinguishers and alarms.

2. According to claim 1, a smart distribution box system with a cascaded one-to-many communication architecture is characterized in that The module adopts the master-slave communication mode, with the intelligent sensing terminal as the slave, intelligently supports power line carrier communication, supports data caching, breakpoint resume function, supports 2-way switch input and output, supports 1-way ADC input, and has three-way isolated 485, which is convenient for establishing communication with various smart devices.

3. According to claim 1, a smart distribution box system with a cascaded one-to-many communication architecture is characterized in that The carrier communication function is selected as the communication method for the intelligent fusion terminal and the intelligent acquisition terminal, and the modulation technology is used to carry the data signal to the current or voltage of the power line. This modulation allows multiple signals to be transmitted simultaneously on the same power line without interfering with each other.

4. The intelligent distribution box system of the cascaded one-to-many communication architecture according to claim 1 is characterized in that The intelligent sensing terminal coordinates and dispatches intelligent devices such as door locks, temperature and humidity sensors, smoke sensors, and molded case circuit breakers in the distribution box, and supports the transmission of data from intelligent devices to the intelligent fusion terminal via power carrier.

5. The intelligent distribution box system of cascaded one-to-many communication architecture according to claim 1 is characterized in that The intelligent sensing terminal connects to the molded case circuit breaker via 485, supports multiple molded case circuit breakers to be connected online at the same time, realizes one-to-many acquisition of power data, and improves the use efficiency of the distribution box.

6. The intelligent distribution box system of cascaded one-to-many communication architecture according to claim 1 is characterized in that The host acts as an intelligent fusion terminal and uses power carrier communication to realize one intelligent fusion terminal corresponding to multiple intelligent sensing terminals, realize one-to-many acquisition of multiple distribution box data, and accurately read specific information through address differentiation.

7. The intelligent distribution box system of cascaded one-to-many communication architecture according to claim 1 is characterized in that Through the intelligent fusion terminal, control instructions are accurately sent to the corresponding sensing terminal through the corresponding address, realizing remote control of circuit breaker opening and closing, remote control of fire extinguisher switching, and remote control of door lock opening.

8. The intelligent distribution box system of cascaded one-to-many communication architecture according to claim 1, characterized in that Through the connection between the cloud platform and the intelligent fusion terminal, all data information is read on the cloud platform, and specific control instructions are issued on the cloud platform to achieve accurate and intelligent operation reading.

9. The intelligent distribution box system of cascaded one-to-many communication architecture according to claim 1, characterized in that The remote communication function includes a remote upgrade function, which supports cloud platform communication for firmware update, and the remote upgrade function adopts the DLT645 communication protocol.

10. The intelligent distribution box system of cascaded one-to-many communication architecture according to claim 1, characterized in that Each package of upgrade data in the remote upgrade function comes with self-verification; When the program upgrade is suspended unexpectedly, the original program will not be overwritten, ensuring the normal operation of the module.

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