Power distribution room comprehensive environment monitoring system

Abstract

The utility model discloses a comprehensive environment monitoring system for a power distribution room, which comprises a wireless temperature measurement module, a wireless temperature and humidity monitoring module, an environment acquisition terminal, a photoelectric conversion module and a central power distribution room, and further comprises a communication repeater used for strengthening the wireless transmission distance of the wireless temperature measurement module and the wireless temperature and humidity monitoring module. By introducing the wireless temperature measurement module and the wireless temperature and humidity monitoring module, comprehensive real-time monitoring of the environment of the power distribution room is realized, the working efficiency is remarkably improved, and the accuracy and the real-time performance of data are ensured. Through cooperative work of the communication repeater and the environment acquisition terminal, a communication network fully covering a distribution room is constructed, the transmission distance of wireless signals is effectively prolonged, the signal stability is enhanced, the information island phenomenon is eliminated, and comprehensive visualization and intelligent management of data are realized. In addition, by adopting the photoelectric conversion module, the stability and speed of data transmission are improved, and the influence of electromagnetic interference is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power distribution room environment monitoring, especially relates to a power distribution room comprehensive environment monitoring system. BACKGROUND

[0002] In the daily operation and maintenance of the power system, the operation cycle and stability of the power equipment are directly affected by the environment. Environmental factors such as temperature, humidity, dust, and corrosive gases can significantly affect the performance and service life of the power equipment. Therefore, in order to optimize the operation efficiency of the power equipment, reduce the failure rate, and improve the reliability of the overall power system, it is particularly important to monitor the environment of the power equipment in real time.

[0003] In such special environments as chemical industrial parks, power distribution rooms are often widely distributed, and it is difficult for maintenance personnel to frequently visit each power distribution room to check data due to factors such as park layout and safety regulations. This not only leads to low operation and maintenance efficiency, but also makes it impossible for maintenance personnel to keep abreast of the environmental conditions of each power distribution room in real time, thereby failing to respond to possible abnormal situations in a timely manner.

[0004] In order to solve the above problems, the existing technology begins to explore the combination of wireless environmental monitoring sensors and remote data transmission technology. By installing wireless environmental monitoring sensors in each power distribution room and using wireless communication technology (such as Wi-Fi, LoRa, NB-IoT, etc.) to transmit the collected data to a remote data center or monitoring platform in real time, maintenance personnel can check the data without personally visiting each power distribution room. However, this solution, while alleviating the workload of maintenance personnel to some extent, still has some problems. For example, wireless communication technology may be affected by the complex electromagnetic environment in the chemical industrial park, resulting in unstable data transmission; at the same time, the environmental collection terminals of each power distribution room or the environmental monitoring platform often operate independently, lacking a unified data management and sharing mechanism, resulting in information silos between each power distribution room.

[0005] Therefore, the utility model provides a new solution to solve this problem. UTILITY MODEL CONTENT

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the utility model is to provide a power distribution room comprehensive environment monitoring system.

[0007] The technical solution it solves is: a power distribution room comprehensive environment monitoring system, comprising:

[0008] A wireless temperature measurement module for monitoring temperature data of key parts inside the power distribution room;

[0009] A wireless temperature and humidity monitoring module for monitoring temperature and humidity data of the external environment of the power distribution room;

[0010] An environment collection terminal is arranged to collect data collected by the wireless temperature measurement module and the wireless temperature and humidity monitoring module.

[0011] An optical-electric conversion module is arranged to convert electric signal data output by the environment collection terminal into optical signals for optical fiber transmission.

[0012] A central power distribution room is arranged to receive data from the optical-electric conversion module, analyze and compare the received data, and thus realize real-time monitoring and early warning of the environment of the power distribution room.

[0013] Preferably, a communication repeater is arranged at the front end of the environment collection terminal to strengthen the wireless transmission distance of the wireless temperature measurement module and the wireless temperature and humidity monitoring module.

[0014] Preferably, the wireless temperature measurement module comprises a plurality of wireless temperature measurement sensors, each of which can independently monitor and wirelessly transmit temperature data to the communication repeater or the environment collection terminal.

[0015] Preferably, the wireless temperature measurement sensor is an SPS061V3 wireless temperature measurement sensor.

[0016] Preferably, the wireless temperature and humidity monitoring module comprises:

[0017] A temperature and humidity sensor is arranged to collect temperature and humidity data in the environment and output the collected data in the form of electric signals.

[0018] A signal conditioning circuit is arranged to pre-process the electric signals output by the temperature and humidity sensor.

[0019] An MCU is arranged to digitally process the pre-processed electric signals.

[0020] An RF wireless communication module is electrically connected to the MCU and arranged to wirelessly transmit the processed data to the communication repeater or the environment collection terminal.

[0021] Preferably, the signal conditioning circuit comprises operational amplifier U1 and operational amplifier U2, the non-inverting input terminal of operational amplifier U1 is connected to one end of capacitor C1 and the signal output terminal of the temperature and humidity sensor through resistor R1, the other end of capacitor C1 is grounded; the inverting input terminal of operational amplifier U1 is grounded through resistor R2 and connected to one end of capacitor C2 through resistor R3; the other end of operational amplifier U1 is connected to one end of resistor R4, the other end of capacitor C2 and the emitter of triode VT1, the other end of resistor R4 is connected to the base of triode VT1, the collector of triode VT1 is connected to one end of capacitor C4 and the non-inverting input terminal of operational amplifier U2 through resistor R5, the other end of capacitor C4 is grounded; the inverting input terminal of operational amplifier U2 is connected to a reference current source and grounded through resistor R6; the output terminal of operational amplifier U2 is connected to the MCU.

[0022] Preferably, the MCU is FT32F030F6CU7 type microcontroller.

[0023] Preferably, the communication repeater is SP1807V2 type wireless communication repeater.

[0024] Preferably, the environment acquisition terminal is SPW2000F type wireless receiving terminal.

[0025] Preferably, the photoelectric conversion module is HFBR-2521T / R series optical fiber transceiver module.

[0026] Through the above technical scheme, the application has the beneficial effects that: by introducing the wireless temperature measurement module and the wireless temperature and humidity monitoring module, the application realizes comprehensive real-time monitoring of the environment of the power distribution room, significantly improves the work efficiency and ensures the accuracy and real-time performance of the data. Through the cooperative work of the communication repeater and the environment acquisition terminal, a communication network that comprehensively covers the power distribution room is constructed, the transmission distance of the wireless signal is effectively prolonged and the signal stability is enhanced, so that the data collected by the wireless temperature measurement module and the wireless temperature and humidity monitoring module can be stably and reliably transmitted to the environment acquisition terminal even in the remote or signal-penetrating areas of the power distribution room, and the information island phenomenon is eliminated. In addition, the photoelectric conversion module is adopted to improve the stability and speed of data transmission and reduce the influence of electromagnetic interference. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a system module structure diagram of the application.

[0028] Figure 2 It is a structure block diagram of the wireless temperature and humidity monitoring module in the application.

[0029] Figure 3 It is a principle diagram of the signal conditioning circuit in the application.

[0030] Figure 4 The circuit principle diagram of the MCU in the utility model.

[0031] Figure 5 The circuit principle diagram of the RF wireless communication module in the utility model. DETAILED DESCRIPTION

[0032] The foregoing and other technical contents, features and effects of the utility model will be described in detail below with reference to the accompanying drawings. Figure 1 to the accompanying drawings Figure 5 The detailed description of the embodiments will be clearly presented.

[0033] The exemplary embodiments of the utility model will be described below with reference to the accompanying drawings.

[0034] As shown in the drawings, a power distribution room comprehensive environment monitoring system comprises: Figure 1 The wireless temperature measurement module is used for monitoring the temperature data of each key part inside the power distribution room.

[0035] The wireless temperature and humidity monitoring module is used for monitoring the temperature and humidity data of the external environment of the power distribution room.

[0036] The environment acquisition terminal is used for collecting the data collected by the wireless temperature measurement module and the wireless temperature and humidity monitoring module.

[0037] The photoelectric conversion module is used for converting the electrical signal data output by the environment acquisition terminal into optical signals for optical fiber transmission.

[0038] The central power distribution room is used for receiving the data from the photoelectric conversion module and analyzing and comparing the received data to realize real-time monitoring and early warning of the environment of the power distribution room.

[0039] In a specific embodiment, the system of the application further comprises a communication repeater, which is arranged at the front end of the environment acquisition terminal and can be connected with the environment acquisition terminal through the RS485 communication protocol. The main function of the communication repeater is to strengthen the communication distance and ensure that the data collected by the wireless temperature measurement module and the wireless temperature and humidity monitoring module can be stably transmitted to the environment acquisition terminal in a complex or long-distance environment. Specifically, the SP1807V2 type wireless communication repeater is selected to receive and amplify the wireless signal, ensure the transmission of the signal in a longer distance, reduce signal attenuation, and thus realize more stable communication connection.

[0040]

[0041] ​In a specific implementation, a plurality of communication repeaters are arranged to build a communication network covering the entire power distribution room, thereby achieving comprehensive monitoring of every corner of the power distribution room. Meanwhile, with the enhanced transmission capability of the communication repeaters, all monitoring data of the power distribution room can be collected and integrated into a unified platform in a timely and accurate manner, eliminating the information island phenomenon and realizing comprehensive visualization and intelligent management of data.

[0042] In a specific embodiment, the wireless temperature measurement module includes a plurality of wireless temperature measurement sensors, each of which can independently monitor and wirelessly transmit temperature data to the communication repeater or the environment collection terminal.

[0043] In a specific implementation, the wireless temperature measurement sensor is an SPS061V3 wireless temperature measurement sensor. This sensor uses the latest wireless communication technology, can provide high-precision temperature measurement, has a long communication distance and good anti-interference ability, and supports multiple data transmission protocols to ensure seamless connection with different types of communication repeaters or environment collection terminals.

[0044] In a specific embodiment, as shown in Figure 2 the wireless temperature and humidity monitoring module includes:

[0045] a temperature and humidity sensor for collecting temperature and humidity data in the environment and outputting the collected data in the form of electrical signals;

[0046] a signal conditioning circuit for pre-processing the electrical signals output by the temperature and humidity sensor;

[0047] an MCU for digitally processing the pre-processed electrical signals;

[0048] an RF wireless communication module electrically connected to the MCU for wirelessly transmitting the processed data to the communication repeater or the environment collection terminal.

[0049] Due to the complex and variable external environment of the power distribution room, in order to ensure that the temperature and humidity sensor can accurately monitor the environmental changes, the signal conditioning circuit is used to pre-process these electrical signals. In a specific implementation, as shown in Figure 3As shown, the signal conditioning circuit includes operational amplifier U1 and operational amplifier U2. The non-inverting input of operational amplifier U1 is connected to one end of capacitor C1 and the signal output of the temperature and humidity sensor through resistor R1, and the other end of capacitor C1 is grounded. The inverting input of operational amplifier U1 is connected to ground through resistor R2, and connected to one end of capacitor C2 through resistor R3. The other end of operational amplifier U1 is connected to one end of resistor R4, the other end of capacitor C2, and the emitter of transistor VT1. The other end of resistor R4 is connected to the base of transistor VT1, and the collector of transistor VT1 is connected to one end of capacitor C4 and the non-inverting input of operational amplifier U2 through resistor R5. The other end of capacitor C4 is grounded. The inverting input of operational amplifier U2 is connected to a reference current source and grounded through resistor R6. The output of operational amplifier U2 is connected to the MCU.

[0050] In the preprocessing process of the signal conditioning circuit, the electrical signal output by the temperature and humidity sensor is first filtered of high-frequency noise by capacitor C1, and then input to operational amplifier U1 for in-phase amplification. In order to further improve the stability and accuracy of the signal, the output signal of operational amplifier U1 is then filtered through a low-pass filter composed of resistor R4 and capacitor C2 to filter out possible high-frequency interference. The output of the low-pass filter is connected to the emitter of transistor VT1, which acts as a voltage follower to further stabilize the signal and transmit it to operational amplifier U2. Operational amplifier U2 uses comparator principles to shape the signal, comparing the input signal with the amplitude of the reference current source, further suppressing noise and fluctuations in the signal, and finally collecting and processing data through the MCU.

[0051] In the specific implementation process, as shown in Figures 4-5 The MCU uses FT32F030F6CU7 microcontroller. After receiving the electrical signal processed by the signal conditioning circuit, the microcontroller first converts the analog signal to a digital signal through its built-in analog-to-digital converter (ADC) for subsequent digital processing. The RF wireless communication module is responsible for transmitting the data processed by the MCU wirelessly. At the sending end, the MCU sends the processed data to the RF wireless communication module through the serial communication interface, and the RF wireless communication module modulates these data onto a radio frequency carrier wave and transmits them to the communication repeater or environmental collection terminal through the antenna.

[0052] In the specific implementation process, the environment collection terminal adopts a SPW2000F type wireless receiving terminal. This equipment is popular in the field of environmental monitoring due to its efficient data transmission capability and stable performance. It can capture various parameter data in the environment in real time, and transmit these data to the central power distribution room through a communication repeater and a wireless network. The photoelectric conversion module uses an HFBR-2521T / R series optical fiber transceiver module. This module has good photoelectric conversion efficiency and anti-interference capability, and can quickly and stably convert the signals collected by the environment collection terminal into optical signals and transmit them to the central power distribution room through an optical fiber network. The introduction of optical fiber transmission not only improves the speed and stability of data transmission, but also effectively reduces the influence of electromagnetic interference on data transmission.

[0053] In the central power distribution room, the system receives data from the photoelectric conversion module and immediately performs real-time analysis and comparison. By comparing with the preset safety threshold, the system can quickly determine whether the environment of the power distribution room is in a normal state. Once any abnormality is found, such as excessive temperature or excessive humidity, the central power distribution room will immediately trigger a pre-warning or alarm mechanism, and transmit the alarm information to relevant personnel through various ways such as pop-up alarm, real-time voice alarm, and SMS alarm.

[0054] In summary, by introducing the wireless temperature measurement module and the wireless temperature and humidity monitoring module, the present application realizes comprehensive real-time monitoring of the environment of the power distribution room, significantly improves work efficiency and ensures the accuracy and real-time performance of the data. Through the cooperative work of the communication repeater and the environment collection terminal, a communication network that comprehensively covers the power distribution room is constructed, effectively extending the transmission distance of the wireless signal and enhancing the signal stability, so that the data collected by the wireless temperature measurement module and the wireless temperature and humidity monitoring module can be stably and reliably transmitted to the environment collection terminal even in remote areas of the power distribution room or areas where the signal is difficult to penetrate, eliminating the information island phenomenon. In addition, the use of the photoelectric conversion module improves the stability and speed of data transmission and reduces the influence of electromagnetic interference. Overall, this technical solution effectively solves the problems of the existing power distribution room environment monitoring system, improves the monitoring efficiency and accuracy, and provides strong support for the safe and stable operation of the power system and the work efficiency of the operation and maintenance personnel.

[0055] The above is a further detailed description of the present application in combination with the specific implementation, which cannot be limited to the specific implementation of the present application; for those skilled in the art and related technical fields, the expansion, operation method and data replacement made on the basis of the technical solution idea of the present application should fall within the protection scope of the present application.

Claims

1. A comprehensive environmental monitoring system for a power distribution room, characterized in that, include: A wireless temperature measurement module is used to monitor the temperature data of key parts inside the power distribution room; A wireless temperature and humidity monitoring module is used to monitor the temperature and humidity data of the external environment of the power distribution room; An environmental data acquisition terminal is used to collect data acquired by the wireless temperature measurement module and the wireless temperature and humidity monitoring module. The photoelectric conversion module is used to convert the electrical signal data output by the environmental acquisition terminal into an optical signal for fiber optic transmission. as well as The central power distribution room is used to receive data from the photoelectric conversion module and analyze and compare the received data to achieve real-time monitoring and early warning of the power distribution room environment.

2. The integrated environmental monitoring system for a power distribution room according to claim 1, characterized in that, It also includes a communication repeater, which is set at the front end of the environmental acquisition terminal to enhance the wireless transmission distance of the wireless temperature measurement module and the wireless temperature and humidity monitoring module.

3. The integrated environmental monitoring system for a power distribution room according to claim 2, characterized in that, The wireless temperature measurement module includes multiple wireless temperature sensors, each of which can independently monitor and wirelessly transmit temperature data to the communication repeater or the environmental acquisition terminal.

4. The integrated environmental monitoring system for a power distribution room according to claim 3, characterized in that, The wireless temperature sensor is an SPS061V3 type wireless temperature sensor.

5. The integrated environmental monitoring system for a power distribution room according to claim 2, characterized in that, The wireless temperature and humidity monitoring module includes: Temperature and humidity sensors are used to collect temperature and humidity data in the environment and output the collected data in the form of electrical signals. A signal conditioning circuit is used to preprocess the electrical signal output by the temperature and humidity sensor; MCU is used to digitize pre-processed electrical signals; The RF wireless communication module is electrically connected to the MCU and is used to wirelessly transmit the processed data to the communication repeater or the environmental acquisition terminal.

6. The integrated environmental monitoring system for a power distribution room according to claim 5, characterized in that, The signal conditioning circuit includes operational amplifiers U1 and U2. The non-inverting input of operational amplifier U1 is connected to one end of capacitor C1 and the signal output of the temperature and humidity sensor through resistor R1, and the other end of capacitor C1 is grounded. The inverting input of operational amplifier U1 is grounded through resistor R2 and connected to one end of capacitor C2 through resistor R3. The other end of operational amplifier U1 is connected to one end of resistor R4, the other end of capacitor C2, and the emitter of transistor VT1. The other end of resistor R4 is connected to the base of transistor VT1. The collector of transistor VT1 is connected to one end of capacitor C4 and the non-inverting input of operational amplifier U2 through resistor R5, and the other end of capacitor C4 is grounded. The inverting input of operational amplifier U2 is connected to a reference current source and grounded through resistor R6. The output of operational amplifier U2 is connected to the MCU.

7. The integrated environmental monitoring system for a power distribution room according to claim 6, characterized in that, The MCU is an FT32F030F6CU7 microcontroller.

8. The integrated environmental monitoring system for a power distribution room according to claim 2, characterized in that, The communication repeater is an SP1807V2 wireless communication repeater.

9. The integrated environmental monitoring system for a power distribution room according to claim 8, characterized in that, The environmental data acquisition terminal is an SPW2000F wireless receiver terminal.

10. The integrated environmental monitoring system for a power distribution room according to claim 9, characterized in that, The photoelectric conversion module is an HFBR-2521T / R series fiber optic transceiver module.

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