a monitoring device
A technology of monitoring equipment and monitoring targets, which is applied in the field of safety detection, can solve the problems of continuous tracking, inability to confirm the direction of the sound source, and the monitoring method is prone to false alarms, etc., and achieves the effect of expanding the equivalent aperture
Active Publication Date: 2015-10-07
INST OF ACOUSTICS CHINESE ACAD OF SCI
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[0004] However, the defects of the above-mentioned safety detection equipment are: vibration and acoustic monitoring are not combined, and a single monitoring method is prone to false alarms; the acoustic information provided by a single microphone is limited, and the direction of the sound source cannot be confirmed, let alone continuously tracked.
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[0014] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0015] figure 1 It is a schematic diagram of a monitoring device provided by an embodiment of the present invention. Such as figure 1 As shown, the monitoring device includes two vibration sensors 21 , a microphone array (not shown in the figure), and a host 10 .
[0016] The two vibration sensors 21 are respectively connected to the host 10 through cables for receiving vibration signals and transmitting them to the host 10 . The two vibration sensors 21 can be arranged arbitrarily according to the usage conditions, and usually can be arranged on both sides of the host, about 10 meters away from the host, so as to cover a larger monitoring area and keep the necessary overlapping of the monitoring areas. Vibration sensor 21 adopts buried mode, concealed installation. It should be noted that the number of vibration s...
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The invention relates to monitoring equipment. The monitoring equipment comprises a plurality of vibration sensors, a microphone array and a host, wherein the vibration sensors are connected with the host and are used for receiving vibration signals and sending the vibration signals to the host; acoustic conductance tubes are used by the microphone array; the microphone array is connected with the host and is used for receiving acoustical signals and sending the acoustical signals to the host; and the host is used for joint treatment of the acoustical signals and the vibration signals to determine whether a to-be-monitored object exists or not. According to the monitoring equipment provided by the invention, the monitoring performance can be effectively improved, and moreover, the miniaturization and the assembly modularization of the equipment are realized. Meanwhile, the monitoring equipment is in favor of the waterproof and dustproof protection of microphones.
Description
technical field [0001] The invention relates to the technical field of safety detection, in particular to a monitoring device. Background technique [0002] At present, the sensors commonly used in anti-intrusion and anti-sabotage security detection equipment are vibration sensors, which judge whether there is damage or intrusion by sensing the vibration of the monitored object (such as protected equipment, walls, fences, etc.), and send out various kind of alarm information. Among them, the vibration sensor is different according to the realization principle, including acceleration sensor, displacement sensor, etc. In short, different technical means are used to measure different physical quantities to represent the vibration information of the object. [0003] In addition, some devices use acoustic signals for anti-intrusion monitoring, but most of them use a single sensor configuration, that is, only one microphone is used to conduct acoustic monitoring through signal en...
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IPC IPC(8): G08B13/00
Inventor 管鲁阳鲍明丁冬亮李晓东
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI