Patent Application
20240280401
The disclosure relates to the technical field of environmental noise detection, in particular to a device for remote online detection of an environmental noise monitoring system.
At present, environmental noise has become the fourth largest pollution after waste gas, waste water and waste residue. There is serious noise pollution in some areas where high noise pollution occurs frequently in enterprises, in construction areas, near railways and airports, around the roads with a large number of motor vehicles and around a large number of high-rise buildings built in cities, which also has a great impact on people's production and life. With the continuous improvement of people's requirements for environmental protection, the complaints of environmental noise upsets are increasing year by year. At the same time, with the development of national economy and the improvement of people's material and cultural living standards, noise census and environmental protection work have been carried out in an all-round way, and noise is also regarded as one of the important quality indicators of products in machine manufacturing industry. At present, noise measuring instruments are not only used in acoustics and electroacoustics measurement, but also widely used in machine manufacturing, architectural design, transportation, environmental protection, medical and health care, national defense engineering and other fields, and become the necessary measuring instruments for almost all departments.
To ensure the accuracy of environmental noise, it is necessary to ensure the accuracy of the field instruments used to monitor noise, so it is necessary to detect the field noise monitoring system. At present, the commonly used detection methods of noise monitoring system include traditional periodic “off-line” laboratory detection method and “on-line” detection method.
The traditional periodic “off-line” laboratory detection method refers to disassembling the field noise monitoring system from the monitoring position within the specified time interval and transporting it to the laboratory standard device of the metrology department for performance detection, so as to determine the accuracy of the acoustic properties measured by the noise monitoring system. However, the limitations highlighted by this method are:
(1) Detection cannot be performed on schedule. The particularity of the application in an environmental monitoring system requires that the system cannot be stopped at will, as a result, the noise monitoring system can not be removed from the installation position on schedule and transported to the metrological technology organization for detection, thereby causing the detection cycle to fail to meet the relevant regulations.
(2) The system cannot be sent for inspection. Many environmental noise monitoring systems are bulky and integrate multiple monitoring functions, which generally cannot be disassembled after installation, resulting in the failure of normal inspection of instruments; in the event of a sudden public safety event, factors such as transportation interruption or failure of inspectors to travel normally will also affect the normal inspection of instruments.
(3) Disassembly and assembly are time-consuming, laborious and costly. In general, the field noise monitoring system is difficult, laborious and costly to disassemble and assembly due to field conditions.
In order to overcome the limitations of the “off-line” laboratory detection method, domestic technical institutions put forward the on-line detection method, which mainly uses a set of anechoic chamber free-field device for field detection, which can be used to detect the acoustic properties of the noise monitoring system. However, the limitations highlighted by this method are:
In view of the above-mentioned shortcomings in the prior art, the present disclosure provides a device for remote online detection of an environmental noise monitoring system, which solves the problem that the existing on-line detection method requires disassembly of equipment and installation of an anechoic tube, making the detection difficult to perform.
In order to achieve the above objective, the technical solutions adopted by the present disclosure are:
Further, the electrical properties include level linearity, electrical signal frequency weighting, time weighting, tone burst response, repeated tone burst response, C-weighted peak sound level, statistical calculation, flat response and relative attenuation.
Further, the acoustic properties include indicated sound level calibration and sound signal frequency weighting.
Further, the platform communication port includes at least one of a 4G module, a 5G module, and a VPN module.
Further, the device further includes a remote management platform including a detection device connection control module connected with a platform communication port, and a test analysis module, an intercom module, a WEB service module, a database and a management module;
Beneficial effects of the present disclosure are: the present disclosure realizes functional diversification, volume miniaturization, carrying convenience of the detection device, does not need to disassemble the detected environmental noise monitoring system and arrange an anechoic chamber, and can quickly and effectively perform remote on-line detection on the metrological performance of the detected environmental noise monitoring system.
Specific embodiments of the present disclosure are described below to facilitate the understanding of the present disclosure by those skilled in the art, however, it should be clear that the present disclosure is not limited to the scope of the specific embodiments, and for those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present disclosure as defined and determined by the appended claims, these changes are obvious, and all disclosures and creations that utilize the concept of the present disclosure are under protection.
As shown in
As shown in
In one embodiment, the device employs the synthetic instrument technology to connect individual modules and software through standardized interfaces to form a measurement device that uses the digital signal processing technology to generate signals for test measurements. The modules are uniformly controlled by a control bus, enabling the output of various signals, and the signal frequency, amplitude and type can be controlled. The device is connected with the detected noise instrument by a wired or wireless mode, performs data communication through the communication protocol of the tested instrument, writes the corresponding interface code so as to obtain the test data and carry out the metrological performance detection of the detected instrument. Functions of the detected instrument include noise integration, statistics and the filter function, etc. The metrological performance includes electrical properties (level linearity, electric signal frequency weighting, time weighting, tone burst response, repeated tone burst response, C-weighted peak sound level, statistical calculation, flat response, relative attenuation, etc.) and acoustic properties (an indicated sound level calibration and sound signal frequency weighting, etc.), and the detection schematic diagrams are
The device is configured to obtain the sound pressure level data of the detected environmental noise monitoring system through the coupler comparison test method while realizing the conventional electric property metrological parameter detection, thereby carrying out the acoustic property detection of the detected environmental noise monitoring system, reducing the requirements of the measuring equipment, and being able to quickly and accurately detect the metrological performance of the detected equipment.
In the detection process, the content of remote control and read data information needed for each detection can be listed, and then summarized, and a communication protocol of a control instruction and a test data information return instruction is designed. These two kinds of instructions need to contain various control factors and data factors that may be used, so that the remote management platform can carry out effective detection and analysis and get test results. A transmission instruction also needs to include various information verification processes, such as field personnel information verification (fingerprint recognition or face recognition) and intelligent detection device recognition.
In order to secure data transmission, the system will establish a system private network in the form of a 4G/5G VPN. In order to further improve the security of the data, encryption is also performed during the data transmission, and the encryption is performed using RSA public key encryption.
The remote management platform remotely controls the intelligent noise online detection device through software to perform performance (acoustic properties and electrical properties) detection of the detected instrument, is responsible for the storage and analysis of all data throughout the system, including tester information, tested instrument and detection device information, record information of detection procedures, etc. On the platform software, all the processes of each detection can be traced, and the docking interface with the laboratory business management system can be provided, and the detection data can be sent to the business management system to generate a detection certificate.
To sum up, the device obtains the detection data of the tested instrument in real time through the communication interface, and transmits the data to the remote management platform in real time through the Internet of Things technology (4G/5G) after the encryption process for analysis and processing. The running state of the equipment is detected online, and the video capture information is transmitted to the remote management platform for recording in real time. The disclosure realizes the function diversification, volume miniaturization and convenient carrying of the detection device, does not need to disassemble the detected environmental noise monitoring system and arranges the anechoic chamber, and can quickly and effectively carry out remote on-line detection on the metrological performance of the detected environmental noise monitoring system.
It will be apparent to those skilled in the art that the disclosure is not limited to the details of the above exemplary embodiments and that the disclosure can be embodied in other specific forms without departing from the spirit or essential features of the disclosure. Therefore, from any perspective, the examples are to be regarded as exemplary and not restrictive, and the scope of the present disclosure is defined by the appended claims rather than by the above description. Therefore, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present disclosure.
In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment contains only one independent technical solution, the description in the specification is for clarity only, and those skilled in the art should take the specification as a whole, and the technical solutions in the examples can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202310181390.6 | Feb 2023 | CN | national |
