FAQ｜Beineng International's new glass breakage detection solution

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FAQ｜Beineng International's new glass breakage detection solution [Copy link]

Live Details: Beineng International's new glass breakage detection solution

Live Topic: Beineng International's new glass breakage detection solution

Live lecturer: Li Renqing

Excerpt from the Live FAQ:

1. Are the requirements for glass high? Or can any glass be used? Is there a standard?
A: Our solution has no requirements for the type of glass. As long as it is glass on the market, it can be used, but acrylic (organic glass) is excluded because it does not belong to the category of real glass.
2. How to decompose high-frequency data and low-frequency data?
A: Decompose in the data collected by the digital silicon microphone.
3. Is there any new technology for detecting human touch on glass?
A: No, if it hits the glass but the glass is not broken, this solution will have a prompt.
4. How is this solution provided to customers? Do I have to use your hardware? Can I use other processors?
A: The whole solution can use our existing ones, or other processors can be used. We can assist customers in evaluating other processors.
5. Fusion algorithm, do you need to use the Kalman filter series algorithm?
A: The specific internal algorithm is a licensed content and is inconvenient to disclose.
6. How long is the warning time for glass breakage detection?
A: It does not predict glass breakage
. 7. Is the frequency of the sound emitted when the glass breaks fixed within a range?
A: There are many frequencies of sound emitted when glass is broken. Our solution is to detect within a certain range.
8. If you accidentally break a glass cup for drinking water near the sensor, will there be a false alarm?
A: If it is a traditional sound detection sensor, the probability of false alarm in this case is very high, but our solution adds an auxiliary means of air pressure change detection, which will definitely not cause false alarms in this case.
9. Will fuzzy processing lead to false alarms? What are the possible reasons for false alarms?
A: Fuzzy processing only unifies the differences in the sound waveforms emitted when various glasses are broken, and does not cause the eigenvalues to change. The possible reason for the false alarm is that several detection conditions are met and it is logical.
10. Do you need to use air detection and full-frequency sound detection to detect glass breakage?
A: Yes
. 11. Can double-layer laminated glass used outdoors be detected? Does environmental noise have any effect? How to accurately judge without air pressure change? How to install?
A: If it is outdoors, we can only enable sound detection and remove air pressure change detection. As long as the glass is broken, it can be detected within the specified distance range.
12. If there is no new environment that has been trained through data training, will there be missed detection?
A: This solution is mainly based on the characteristic value of the glass breaking process, which has nothing to do with the specific material and thickness of the glass, so missed detection will basically not occur13.
Does this detection solution of ATSAMG55 provide source code reference?
A: The algorithm needs to be authorized, and other codes can be provided free of charge under the cooperation mode14
. Is it developed using Atmel Studio 7.0 ?
A: Yes15
. Can it be used in the oceanarium to prevent glass breakage monitoring?
A: The solution does not predict glass breakage16
. After the car enters the water, does the glass break easier or more difficult?
A: This issue is not within the scope of our solution17
. What kind of analysis is mainly needed after the sensor data is collected, or is it just for alarm?
A: The data will be analyzed by the algorithm to get the result. Please see the PPT for the specific analysis process18
. Does this detection have any requirements for the environment?
A: It is generally used indoors to detect damage and intrusion events19
. Can the situation where the glass is not completely detached but is all broken into granular cracks be detected?
A: As long as it meets the glass breaking process, it can be detected20
. Can ceramic bowls be distinguished from glass? Can the sound waveforms of these two materials be distinguished?
A: No material difference
21. Are there differences in the monitoring methods and standards for automotive coated glass, mall tempered glass and bank anti-theft glass?
A: This issue is not within the scope of our solution
22. Does analog signal processing require a bandpass filter?
A: Our sensor already contains an analog signal processing circuit, so the peripheral circuit only has resistance and capacitance, no complex circuit
23. In terms of algorithm self-learning, is it open source? Can the internal source code be modified?
A: Not open source
24. How to analyze the waveforms of sound and air pressure, and by what means?
A: Provide an algorithm library for data analysis
25. The new glass break detection solution of Beneng International is not easily disturbed by environmental sounds. Is there a special chip to filter out environmental sounds? What is the chip model?
A: IM69D130 used in sound detection
26. What is the detection principle
A: Detect the characteristic audio of glass breakage and the indoor pressure changes caused by glass breakage
27. If the environmental sound has low-frequency and high-frequency sounds similar to those when glass breaks at the same time, how to deal with it?
A: If it meets the characteristics of glass breakage sound, it will trigger an event prompt for glass sound.
28. Can IM69D130 be used in parallel? Realize one MCU to monitor more than two pieces of glass in different positions at the same time. 3ks
A: IM69D130 can be used in parallel with two or more. One sensor can also detect multiple pieces of glass.
29. If the room is large and there are many window glasses, do we need to install many sensors?
A: Within our specified range, only one sensor is needed.
30. What is the air pressure detection accuracy of the glass break detection solution?
A: Very high, it can reach 0.005 hPa (or ±5 cm) in high-precision mode
31. MEMS microphones and pressure sensors both use digital output. What interface protocol? Double condition judgment, how to ensure the synchronization of the output of the two sensors?
A: The microphone is a PDM interface, and the air pressure is an IIC interface. The two sensors work independently, and can output simultaneously as long as they are detected.
32. Will these detections have abnormal data collection under the interference of external environmental factors?
A: No
33. What is the response time of the break detection?
A: Within 0.1S34
. If it is tempered glass, there is an impact, but it does not break, can it be detected?
A: If the glass is simply hit and the glass does not break, our solution will provide an event prompt to prove that an impact has occurred.
35. Is there a requirement for the thickness of the detected glass?
A: No requirement36
. If it is a small area of glass, such as the lens of a surveillance camera, can the crack be detected?
A: Currently not possible. 0.5m*0.5m glass is the smallest detection size.
37. How to achieve the best working effect? Will different installation angles and directions also have an impact?
A: There will be installation instructions.
38. Air pressure detection is just an auxiliary means. It can be omitted, right?
A: Yes, various event prompts. For details, please see the PPT.
39. What is the detection principle? What is the thickness that can be detected?
A: It has nothing to do with thickness. A detection method combining sound and air pressure.
40. For false alarms or missed alarms, is the sensitivity adjustable?
A: The sensitivity is currently set to 4 gears, which can be set according to customer requirements.
41. Can digital data determine the direction of intrusion?
A: It can determine whether the window is open or closed.
42. Is the probability of misjudgment high under environmental interference? Have you done relevant tests and test report data?
A: Much lower than traditional detectors.
43. How to adjust, program or circuit adjustment?
A: What to adjust? Sensitivity? If it is sensitivity, is it adjusted through software?
44. Does the data read from the two sensors of Infineon need to be processed by anti-shake and conversion algorithm?
A: Our SDK library has already handled it, and users do not need to handle it themselves.
45. How to solve the distance problem during detection?
A: The distance is measurable within the specification range, and the sensitivity can also be adjusted.
46. What technical support can Guoneng International provide?
A: It depends on customer needs. If the customer needs it, we can provide full support for the R&D part.
47. How high the sound pressure level can be achieved? Can far-field and whisper voice pickup performance be achieved?
A: 120dB, the hardware has the conditions to achieve it.
48. What design information can be provided in this whole solution? Is the software provided in the form of SDK?
A: In the case of cooperation, all information can be provided. The software is subject to the cooperation method.
49. How to install the sound and pressure sensors on the glass? Do you need to install them at multiple points?
A: Not installed on the glass, no multiple points are required.
50. What is the range of distortion rate that can be controlled? How to filter out the influence of environmental white noise?
A: Use data over a period of time to filter out the influence of environmental noise.
51. Is this glass break detection solution adaptive to the detected environment and glass properties or does it need some algorithm corrections?
A: Adaptive. Does not detect glass properties.
52. Does the detection scheme also support wired glass or laminated glass well?
A: The shattering of double-layer glass may not break both layers at once, so the sound characteristics are different and it may not be detected.
53. If the criminal uses a special cutting tool (glass cutter), can this be detected?
A: No.
54. How to detect glass cracks not caused by impact agents?
A: Do not detect glass cracks.
55. In what occasions is monitoring glass shattering generally used?
A: Home security, etc.
56. Can it only support PDM digital silicon microphone input? Considering the cost, can the electret analog MIC input to the MCU be accepted?
A: As long as the data is processed into the data format required by the algorithm, it is possible. However, the analog MIC post-processing circuit is relatively complex, the cost calculation is not advantageous, and the consistency is relatively poor.
57. What are the methods for determining the intrusion direction?
A: Just use the air pressure data to determine it directly.
58. Can the broken glass be detected accurately to determine the specific piece of glass or the general direction of the broken glass?
Can the broken area be determined
? A: The broken area cannot be determined. 59. What functions does the ATSAMG55J19 PDM interface have?
A: The device information and collected data of the PDM interface can be read
. 60. Is the difference between typhoon and broken sound made by the library?
A: Typhoon cannot be determined.
61. Can small impact cracks be reliably collected?
A: Cracks cannot be detected .
62. Is the Microchip ATSAMG55 series MCU specified for this solution? Are there other options?
A: This solution uses the ATSAMG55 series MCU. If it meets the M4 core and has a floating point unit, other MCUs can be selected. Beineng can provide assistance in MCU computing power evaluation.
63. Can Beineng International's new glass breakage detection solution be used directly? What are the commonly used communication interfaces on it?
A: It can be used directly. Commonly used communication interfaces are available.
64. How is the background sound of glass breakage detection processed and extracted?
A: Read the data for a period of time and make a curve judgment.
65. How is the power consumption of the whole solution? Generally, such use uses battery power, and the power consumption of SAMG55 is not low. What are your considerations in this regard? Can it be powered by dry batteries? Can it be powered by wireless batteries?
A: Because the glass breakage occurs in a short time, the detection frequency requirement is actually relatively fast, which is also the reason why the low-power version of the traditional detector is not ideal; the controller of our new solution has a high main frequency, and each peripheral can work independently. The sensor selected now also has an independent acquisition function mode, so the low-power version is under development, including low-power algorithms, and I believe it will soon be promoted to customers with low-power requirements.
66. What are the requirements for glass, such as thickness, light transmittance; is it directly installed on the glass, or through other means?
A: There are no special requirements for glass, and it does not need to be installed directly on the glass. It can be installed near the glass.
67. Does this require the pressure sensor to be integrated with the glass? Or can it be installed separately?
A: The current solution is integrated. No need to install separately.
68. Will the algorithm software upgrade of the glass breakage detection solution be updated to customers?
A: It depends on the needs of the customers. If there are subsequent updates, we can discuss and test with the customers. If the customers agree, we can upgrade for free.
69. There are various sounds in the business environment, and the probability of high and low frequency sounds appearing at the same time is not low. How to solve the false alarm?
A: With the addition of air pressure change assistance, the false alarm rate is much lower, and there is waveform matching in the sound, so not all sounds can be triggered.
70. This involves algorithms. Is the general ARM M system enough? Or must it be a chip with DSP?
A: The ARM Cortex-M4 core with a floating point unit is enough to calculate this algorithm.
71. What are the requirements for the quality of the power supply voltage for the glass breakage detection solution? Is there a low-power option? For example, if it wakes up under certain conditions and performs breakage detection at intervals, the glass intrusion detection can be turned off when many people are nearby. Can the startup conditions be customized in the program?
A: There is no low-power version yet.
72. What is the special interface for PDM digital signal output
? A: Ordinary audio interface, similar to IIS.
73. In addition, for the solution based on sound waveform filtering and detection, if it is in an industrial environment with high vibration and high noise, are the filtering characteristics used different? Can the sensitivity and robustness be guaranteed? There will be no misjudgment, which can increase many application scenarios.
A: The current solution is aimed at home and commercial environments, and the industrial environment has not been tested. I believe that the algorithm needs to be adjusted.
74. Are there any restrictions on glass, such as roofs, side walls, and exterior decorations? Can they all be detected ?
A: No restrictions.
75. Can it also be used in a slightly humid, slightly airtight tank? For burst detection
A: The humidity should be below 90%
. 76. If used on a glass breaker, which is more reliable, sound detection or air pressure detection, or both?
A: This is a new application scenario. Please contact the marketing staff of Beineng to discuss the application in detail.
77. How high is the reliability? Is there any accurate data? Will there be false alarms?
A: Compared with the current solutions on the market, we have added air pressure detection, and the sound and air pressure change waveforms when the glass is broken are processed and matched and compared, which greatly improves the reliability. In the cases we have successfully implemented, the customer is very familiar with the current solutions on the market. It also helped us test and compare our new solutions with the market solutions, which can prove that our solutions are more reliable.
78. Can the Beineng International glass breakage detection solution be customized and modified according to the customer's functional needs?
A: Yes.
79. Does this new glass detection solution have a registered patent? Can it be used casually?
A: Authorization is required.
80. SAMG55 has strong performance. Can the sensors be separated and multiple position detection can be achieved with the same main control?
A: The current solution has sensors on the same detector, and multiple position detection can also be achieved with one detector.
81. This solution is intended to be applied to the detection of broken eggs. Can it be applied directly?
A: No.
82. Will an alarm sound if indoor glass products such as glass cups are broken?
A: Traditional sound detectors are very likely to alarm. The new solution will not be triggered by mistake.
83. What does the SDK provided by Beineng International include? Can users only use it but not modify it?
A: The provided SDK cannot be modified. It includes sensitivity settings, check value output, and event prompt output.
84. If you replace the MCU to implement the function of this solution, what should you pay attention to for the MCU?
A: Use the ARM Cortex-M4 core with a floating point unit, preferably a PDM interface, and more than 16K flash. Beineng can assist in evaluating the MCU resources and computing power selected by customers.
85. If a chip with wifi or Bluetooth function is used to implement it, can it better reflect its advantages in the Internet of Things?
A: By adding a communication module, it can be easily integrated into the Internet of Things.
86. Can it detect broken glass in a family car? Car glass is different from home window glass, and the sound should be different. Does the algorithm or sensitivity need to be adjusted compared to ordinary window glass?
A: Car applications have special requirements, and the current solution does not meet the car regulations.
87. Can it detect glass that is about to break?
A: Glass that is about to break is not within the scope of detection covered by the principle of our solution
. 88. Will a vibration sensor module be added to the new glass in the future?
A: There is no such plan for the time being.
89. Does the film on the surface of the glass affect the use?
A: If it affects the breakage, it will have an impact.
90. How to obtain technical information and technical support?
A: Please contact the marketing staff of Beneng, thank you.
91. Is it open source? Can you provide a module directly or a library?
A: The algorithm is not open source. Please consult our marketing staff for specific cooperation methods. You can cooperate by providing a module or a library.
92. Is the event of glass breaking connected to the interrupt IO port of micrichip through an interrupt signal?
A: The signal of glass breaking is transmitted by our MCU.
93. What are the requirements for ambient temperature and humidity during the detection of the scheme?
A: It is fine for general living environments. If it is in other particularly harsh environments, it may need to be customized.
94. Does the new glass breaking detection scheme sensor need to contact the glass? Or can it be at a certain distance?
A: No direct contact is required, it can be at a certain distance.
95. Is it easy to falsely report the sound of broken glass? There is a lot of noise outdoors. Is there any algorithm library to deal with false alarms?
A: Our algorithm only picks up the characteristic audio when the glass is broken. In addition, combined with the pressure change when the glass is broken, it can effectively avoid misjudgment
. 96. Can the development board be applied for free? Or can it be purchased?
A: Yes, please leave your email address and our market colleagues will contact you.
97. Can the sensor sensitivity be adjusted?
A: Yes
. 98. What data does im69d130 output? Can it be used to realize decibel measurement? 3ks
A: PDM interface digital audio signal output, can measure and convert decibels
? 99. Does IM69D130 realize the dual detection function of air pressure and sound?
A: IM69D130 is responsible for sound, DPS310 is responsible for air pressure, and the two sensors have different functions.
100. What is the concept of full-frequency sound detection?
A: The sound frequency range that the human ear can distinguish generally refers to 20Hz~20KHz.
101. If glass breakage detection is realized by air pressure change detection, what is the minimum air pressure change value supported?
A: Pressure: 300 – 1200 hPa. Temperature: -40 – 85 °C.
102. Does the sensor data need to be processed by special algorithms after collection?
A: Yes, our software SDK has already done the corresponding processing.
103. The detection is installed on the glass. Is it very conspicuous in daily use? What is the size?
A: The chip size of our entire solution is very small. The final product is designed to be about 2/3 to the size of a playing card.
104. This demo uses the M4 processor. Can a low-end MCU replace the M4? For example, an 8-bit machine.
A: The resources, space and speed of an 8-bit machine cannot meet the operation of the algorithm.
105. Are there any requirements for the layout ?
A: You only need to pay attention to the layout design of the two sensors. We have the corresponding design information. You can leave your email address and our marketing colleagues will contact you.
106. Can the sound of organic glass be recognized well?
A: Organic glass does not belong to the category of traditional glass.
107. Will setting off firecrackers nearby cause misdetection?
A: The sound of firecrackers does not meet the audio characteristics of glass breaking, and will not cause misjudgment.
108. Is ATSAMG55J19 a dedicated glass detection?
A: It is not a dedicated MCU, but the resources contained in this model are very suitable for application in our solution.
109. What forms of development can Beneng provide to customers? Module? Algorithm? Overall software and hardware solution?
A: Overall software and hardware solution.
110. Using an air pressure detection sensor, how will the air pressure change when the glass breaks?
A: The pressure may change suddenly, it may be a sudden rise or a sudden drop111
. What is the highest signal-to-noise ratio that Infineon's digital silicon microphone IM69D130 can achieve?
A: Signal to noise ratio of 69dB(A) SNR
112. What is the lower limit of temperature?
A: -40
113. Does Infineon's digital silicon microphone IM69D130 need to add a bandpass filter on the periphery?
A: It is a PDM digital signal output, which is different from the traditional capacitive signal principle, so no bandpass is required in the circuit114
. Does Microchip's ATSAMG55 series MCU require software personnel to write code for peripheral driver (bottom-level software) development?
A: The bottom level of our solution has been completed115
. Sound processing requires filters to filter out noise and useless signals. What filters are used here? Is the filter module used?
A: The algorithm is completed116
. Can it be φ20*5mm, with the size of a button battery?
A: Currently, our solution does not recommend button battery power supply, but the maximum design volume may be slightly larger than button battery.
117. Does your company have a matching demo board for glass break detection?
A: Yes, please leave your email address and our marketing colleagues will contact you.
118. Which MCU is used, ATSAMG55? Is it M4?
A: Yes.
119. What is the range of Infineon's DPS310 air pressure detection and what is the accuracy?
A: 300 – 1200 hPa; ± 0.005 hPa (or ±5 cm)
120. The usable temperature range
A: -40 – 85 °C
121. What are the requirements for power supply
A: Conventional 3.3V is enough.
122. What kind of sensor is used for air detection? What is its principle?
A: Silicon microphone detects the sound of glass breaking, and cooperates with pressure sensor to detect the indoor pressure change when glass breaks.
123. In security, glass breaking is mainly illegal intrusion. Would it be safer to use a camera?
A: The camera is expensive, and the camera will not alarm.
124. In actual use, many nodes may be installed. So is the communication transmitted wirelessly?
A: The signal is not limited. Our MCU only needs to determine that it is an alarm event, not limited to the transmission method. The solution can be modified according to the needs
. 125. It is better to use the traditional method. Although there are false alarms, it is suitable for batch applications.
A: In some foreign occasions, the alarm will be linked to the police. Frequent false alarms may result in fines.
126. Does the new glass breakage detection solution of Beneng International work around the clock? Can it be set on a timer?
A: Our solution is to detect continuously, and the user's special needs can be changed in the software.
127. The signal-to-noise ratio of the digital silicon microphone
A: Signal to noise ratio of 69dB (A)
128. Is there a human-machine interface
A: The human-machine interface refers to the upper-level UI. Our solution does not have this interface.
129. Will it be easily triggered by mistake when closing the window forcefully? Because there are low-frequency vibrations and air pressure changes.
A: If you close the window forcefully, it will not trigger by mistake, but if you close the glass, it will alarm.
130. What are the effects of colored glass break detectors?
A: No effect
. 131. If the solution is integrated into the smart socket and the alarm is realized in the APP, what is the minimum area of this functional detection system?
A: If it is a single-sided patch, it should be slightly larger than a pulsating bottle cap.
132. Is the sensor type used a current type or a voltage type?
A: Digital type
. 133. IM69D130 is used for sound detection. How to improve the accuracy of identifying glass breakage?
A: This silicon microphone itself has a high sensitivity to sound reception, but you should pay attention to the design of the structural parts and the shell when installing it in the product, so that the sound can be transmitted to the sensor as losslessly as possible. We have provided corresponding design reference materials.
134. What is the form of the independent acquisition function mode?
A: That is, the sensor has a FIFO acquisition mode, which can define how much data to collect and then perform DMA transmission.
135. Can the thermal insulation coefficient be measured ?
A: No.
136. Can you provide a flow chart of the detection solution?
A: Yes, please contact our marketing colleagues.
137. How to improve the accuracy of identifying glass breakage?
A: I understand this question as reducing the false alarm rate and missed alarm rate. It has been mentioned on the second page of the PPT.
138. Is this glass breakage detection solution applicable to all glass, or is it specific? Can it be used to detect broken car glass? Tempered glass? What is the principle?
A: Generally, all glass on the market has been tested and data has been collected. The most important thing is to judge based on the characteristics of the glass sending out deformation signals when impacted and high-frequency signals when broken, so it has little to do with the thickness of the glass material.
139. Is the surface of the new glass conductive?
A: Ours is a new solution, not a new type of glass .
140. What are the new glass breakage detection solutions used for?
A: Glass breakage detectors are suitable for all places where glass needs to be protected from shattering. In addition to protecting general doors and windows, they can also effectively control large-area glass windows, display cabinets, kiosks, etc.
141. What is the scope of the detection sensor? Is it calculated by area?
A: The room size ranges from 8m to 50m, 2.5m high, the window size ranges from 0.5mx 0.5m to 3m x 2m, the distance from the window (mainly depends on the sensitivity setting) ranges from 1m to 8m, and the altitude is within 1000m. If it exceeds, the room size will be reduced accordingly.
142. What are the advantages of the new glass breakage detection solution of Beneng International? What is its level compared with its peers?
A: High accuracy, simple circuit, and high cost performance. It is the first time in the industry to use air pressure detection for auxiliary detection, which improves the accuracy.
143. Does this solution use PMD for the audio interface? What is the frequency? ? ?
A: It is a PDM interface, and the sampling rate is 16K
144. Are there any requirements for the glass to be detected?
A: Ordinary glass can be used
. 145. Does the new glass breakage detection solution of Beneng International require the installation of more sensors? Will the installation be more troublesome?
A: No, it is the same as the installation of sensors for traditional sound detection.
146. ATSAM55 is a very powerful MCU. With such a powerful processor, does the algorithm run a lot?
A: There is some amount of calculation. We can provide code for computing power calculation. Because the glass breakage occurs in a short time, it is necessary to get the calculation results quickly for judgment.
147. Can only microchip microcontrollers be used?
A: No, as long as it meets the M4 core and has a floating point unit, it can be used. In terms of computing power calculation, we will provide corresponding code for testing
. 148. If there is a carpet at home, it is very important to be able to detect broken glass. Can broken glass in the carpet be detected?
A: I don’t understand this question.
149. Use ITO conductive film like the electro-pneumatic touch screen to achieve it?
A: No.
150. What are the failure modes for glass breakage? What are the detection modes? Can you provide detailed documents on these two aspects?
A: Do you mean missed detection when you say failure mode?
151. The easiest error in security is false alarm. How to prevent false alarm of glass break detection?
A: First, add air pressure auxiliary detection. Secondly, fuzzy matching processing is also performed on the waveforms of high and low frequencies of sound, which can greatly reduce the false alarm rate. At the same time, the sensitivity adjustment is also digitalized, which can respond to different scenarios more flexibly.
152. Is Beneng International a solution provider? What services does it provide?
A: It depends mainly on customer needs. If customers need it, we can provide full R&D support for the solution
. 153. What is the false alarm rate of vibration alarm detection?
A: We don’t have vibration alarm.
154. What is the frequency range of full-frequency sound detection?
A: 28Hz~20KHz
155. What principle is the new glass break detection based on?
A: Please download the PPT for review, thank you.
156. How is the environmental sound interference filtered out?
A: The sensor does not make single data judgment when collecting data, but makes curve judgment based on data within a period of time, so environmental sound, white noise, etc. can be filtered out, and slowly changing noise can be filtered out in this way.
157. How high is the decibel rate of full-frequency glass sound?
A: Sound intensity is not a judgment condition, audio and waveform matching is a judgment condition.
158. Aren't sound and vibration both obtained at the same time? How to distinguish them?
A: They are the same in macroscopic terms. We do not detect vibration.
159. How to detect which is valid information for micro-vibration glass breakage?
A: Our solution does not predict glass breakage
. 160. What is the approximate hardware cost required for detection on 30 square centimeters of glass?
A: This solution is quite special. In addition to the hardware cost, the software also needs to be authorized. The specific price needs to be quoted from the market of Beneng Electronics. I can only say that it has advantages over traditional glass alarms and is very cost-effective.
161. Does glass detection have any requirements for the environment? That is, how is the anti-interference ability?
A: It can work normally within the temperature and humidity range specified in the specification.
162. Can it detect outdoor glass breakage?
A: The sound of outdoor glass breaking can be detected.
163. How is the power consumption of the fifth-generation detector solution?
A: Because the glass breaking occurs in a short time, the detection frequency requirement is actually relatively fast. This is also the reason why the low-power version of the traditional detector is not ideal. The controller of our new solution has a high main frequency, and each peripheral can work independently. The sensor selected now also has an independent acquisition function mode, so the low-power version is under development, including low-power algorithms. I believe it will soon be promoted to customers with low-power requirements.
164. What is the identifiable range or distance? Or must it be installed close to the glass?
A: The installation method is the same as that of traditional sound detection sensors.
165. Can organic glass, acrylic and the like be detected?
A: The sound characteristics of acrylic breaking are different from those of ordinary glass breaking. If necessary, the algorithm library needs to be adjusted.
166. What is the minimum subtlety of glass detection and what is the sensitivity?
A: Our solution does not predict glass breaking
. 167. Is hardware debugging required?
A: Basically not required
. 168. Is the core of the new glass breaking detection solution of Beneng International an algorithm? Is it required to install it?
A: The final software core is the algorithm. The installation requirements are the same as those for traditional sound detection sensors.
169. Is low-frequency vibration detected by pressure sensors? Or is it detected by 69D130?
A: Low-frequency sound signals are also detected using digital silicon microphones.
170. Has the Beineng International glass breakage detection solution been used in batches in practice? How reliable is it?
A: Some customers are already implementing it.