## 1 Introduction and Related Works  
With the acceleration of urbanization, drilling and blasting methods have been widely used in tunnel excavation in hard rock areas due to its high economic and construction efficiency [1]. However, the energy waves, noise, flying stones, and vibration generated by the drilling and blasting seriously affect the lives of residents and the surrounding environment [2], especially in large and medium-sized cities with dense populations and rapid economic development [3]. Damage to existing pipelines, structures, and buildings caused by blasting vibration seriously threatens the safety of society. The environmental impact of blasting vibration is the focus of much research [4, 5]. Numerical simulation and theoretical analysis are commonly used to study the attenuation law of certain blasting vibration [6; 7]. However, they cannot accurately reflect the actual situation of blasting vibration due to the complex and changeable influence factors of blasting vibration, so on-site monitoring is the primary method to directly feedback the environmental impact of blasting vibration [8]. With the development of computer microprocessing technology and digital recording technology, the digital vibration measurement system has been widely used because of its advantages of portability, flexibility, simple operation, and high precision of test data [9]. The digital monitoring system generally obtains data outdoors, and automatically stores the data in the recorder, and then goes back indoors to the computer for analysis and processing [10]. Some of the instruments can even be read directly in the field and monitor for 24 h. Test results can also be transmitted wirelessly to the monitoring personnel, which improves work efficiency and feedback speed [11; 12]. With the rapid development of blasting monitoring technology, blasting vibration recording instruments are also being updated. The blasting vibration recorder has experienced the first generation, the second generation, the third generation, and now the blasting vibration recorder with the function of the Internet of things. The data obtained on site can be sent to the Internet wirelessly and in real-time, and users can easily obtain blasting information by logging in the relevant network address. The traditional vibration measuring instruments, such as TC-4850 and TC-4850N, are used in Qingdao metro construction, but fail because the management mode of the traditional blasting vibration monitoring instruments needs a lot of effort and equipment investment [13]. Zhongke Measurement and Control developed a TC-6850 network blasting vibration instrument to realize the functions of real-time transmission, high integration, and free networking, which adopts the most advanced intelligent sensors and has the advantages of small size and easy installation [14]. At present, the application of the TC-6850 network blasting vibrometer is relatively limited. It only monitors the key buildings within the influence range of blasting face and does not make full use of the network function of dynamometer. However, the impact of blasting vibration on the environment is regional and spatial, and it is inevitable that it will ignore some critical issues and cause irreparable losses when monitoring only essential buildings. [PERSON], [PERSON], [PERSON], and [PERSON] et al. used neural network to predict the peak vibration of blasting vibration, and the results showed that the peak vibration velocity of blasting vibration predicted by neural network method was closer to the measured value than that predicted by traditional regression method, indicating the superiority of neural network method in blasting vibration intensity prediction [15; 16; 17]. In this paper, a digital and information-based automatic monitoring system for blasting vibration is developed, and a blasting environmental impact prediction model is constructed. Through data collection, analysis, and prediction, the space-time effect of blasting vibration is studied.