CN110568290A - Real-time monitoring device for load working state of sound masking system under multi-load condition - Google Patents
Real-time monitoring device for load working state of sound masking system under multi-load condition Download PDFInfo
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- CN110568290A CN110568290A CN201910879457.7A CN201910879457A CN110568290A CN 110568290 A CN110568290 A CN 110568290A CN 201910879457 A CN201910879457 A CN 201910879457A CN 110568290 A CN110568290 A CN 110568290A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to the technical field of sound masking systems, discloses a real-time monitoring device for load working states of a sound masking system under a multi-load condition, and solves the technical problem of real-time monitoring of the load working states under the multi-load condition. Be connected with output interface, input interface and monitoring module through sampling module, monitoring module is connected with the communication interface, and power module includes power management module, lithium cell power supply interface, adapter power supply interface, refers to sampling power source interface, utilizes the partial pressure principle, combines the characteristic of sound masking system output signal, under the prerequisite that does not influence sound masking system output signal, the real-time on-line monitoring of load devices operating condition such as convenient realization audio generator, vibration generator. The real-time online monitoring device can monitor abnormal conditions of short circuit, open circuit and the like of a load, and has the characteristics of simple structure, low cost, high sensitivity, low false alarm rate and the like.
Description
Technical Field
The invention relates to the technical field of sound masking systems, in particular to a real-time monitoring device for load working states of a sound masking system under a multi-load condition.
Background
The speech sound is used as an important carrier for information communication and transmission of people, and the carried information is abundant and has more occasions. When a person talks, a large amount of sound information is generated. Because indoor facility conditions and safety conditions are variable, sensitive voice information can be leaked to different degrees, and the safety of the speaking content is directly related.
With the development of information technology, the eavesdropping means is advanced day by day, and a serious challenge is brought to the sound information security. In order to improve the security of the acoustic information, it is necessary to protect the acoustic information from being leaked. Especially relates to the confidential places of confidential information such as national policy, military, commerce, science and technology, etc., and the facility conditions and the security status of the confidential places directly relate to the smooth proceeding of confidential activities and the security of speaking contents. At present, two approaches are mainly used for guaranteeing the safety of acoustic information: firstly, by changing the building structure, the leakage of sound information is reduced as much as possible; and secondly, by installing the sound masking system, the leaked sound information is not easy to acquire.
The sound masking system achieves the purpose of preventing eavesdropping by installing an interference device at a position where sound information leakage is likely to occur, signals generated by the existing sound masking system are converted into masking signals such as sound signals and vibration signals through devices such as an audio generator and a vibration generator, however, in the existing sound masking system, the working state of a load device generating the masking signals is not monitored, when a certain load is abnormal in working state or is damaged by people, alarm prompt cannot be carried out, and therefore sound information leakage accidents occur.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a real-time load working state monitoring device of an acoustic masking system under the condition of multiple loads.
In order to achieve the purpose, the invention adopts the following technical scheme:
The real-time monitoring device for the load working state of the sound masking system under the condition of multiple loads comprises a device shell, a sampling module and a power supply module, wherein the sampling module is connected with an output interface, an input interface and a monitoring module, and the monitoring module is connected with a communication interface;
The power module comprises a power management module, a lithium battery power supply interface, an adapter power supply interface and a reference sampling power supply interface, wherein the sampling module comprises a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, a reference sampling power supply Vcc, a load, a signal Input end Input, a short-circuit working state signal sampling output T1, a broken circuit working state signal sampling output T2 and the monitoring module is connected with the reference sampling power supply Vcc.
Preferably, the output interface is connected with an audio generator and a vibration generator.
Preferably, the monitoring module comprises a processor and a local alarm unit, and the processor is connected with the sampling module.
preferably, the adapter power supply interface voltage of the power supply module is 15V.
Preferably, the voltage of the lithium battery power supply interface is 12V.
Preferably, the reference sampling power supply interface voltage is 5V.
Compared with the prior art, the invention has the beneficial effects that:
1. Be connected with output interface, input interface and monitoring module through sampling module, monitoring module is connected with the communication interface, and power module includes power management module, lithium cell power supply interface, adapter power supply interface, refers to sampling power source interface, utilizes the partial pressure principle, combines the characteristic of sound masking system output signal, under the prerequisite that does not influence sound masking system output signal, the real-time on-line monitoring of load devices operating condition such as convenient realization audio generator, vibration generator. The real-time online monitoring device can monitor abnormal conditions of short circuit, open circuit and the like of a load, and has the characteristics of simple structure, low cost, high sensitivity, low false alarm rate and the like.
2. through the sampling module, the normal state and the working state of the load can be effectively distinguished, the output signal intensity of the sound masking system is not influenced, and the working state can be quickly identified
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a functional block diagram of the present invention;
FIG. 3 is a circuit diagram of the load operation status monitoring circuit of the present invention;
FIG. 4 is a schematic diagram of the system of the present invention.
in the figure: 101. a device housing; 102. a power supply module; 103. an input interface; 104. a sampling module; 105. a monitoring module; 106. an output interface; 107. a communication interface; 108. a processor; 109. a local alarm unit; 110. a power management module; 111. a lithium battery power supply interface; 112. an adapter power supply interface; 113. the reference sampling power interface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
The real-time monitoring device for the load working state of the sound masking system under the condition of multiple loads comprises a device shell 101, a sampling module 104 and a power supply module 102, wherein the sampling module 104 is connected with an output interface 106, an input interface 103 and a monitoring module 105, and the monitoring module 105 is connected with a communication interface 107;
The power module 102 comprises a power management module 110, a lithium battery power supply interface 111, an adapter power supply interface 112 and a reference sampling power supply interface 113; the sampling module 104 comprises a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, a reference sampling power supply Vcc, a load, a signal Input terminal Input, a short-circuit working state signal sampling output T1, an open circuit working state signal sampling output T2, and is connected to the monitoring module 105, and the reference sampling power supply interface 113 is connected to the Vcc terminal of the reference sampling power supply.
By utilizing a voltage division principle and combining the characteristics of the output signal of the sound masking system, the real-time online monitoring of the working state of load devices such as an audio generator, a vibration generator and the like is conveniently realized on the premise of not influencing the output signal of the sound masking system. The real-time online monitoring device can monitor abnormal conditions of short circuit, open circuit and the like of a load, and has the characteristics of simple structure, low cost, high sensitivity, low false alarm rate and the like.
the output interface 106 can be used for connecting devices such as an audio generator and a vibration generator which generate output signals through the movement of coils of alternating current signals in a magnetic field, the number of the devices is M, M is more than or equal to 1, and the value of the number M of the connected audio generator and the vibration generator can be selected according to the requirement of the load output intensity of the sound masking system. The input interface 103 is used for receiving signals which can drive an audio generator or a vibration generator.
The monitoring module 105 further comprises a processor 108 and a local alarm unit 109, the processor 108 is connected with the sampling module 104, and is used for analyzing the state of the monitored load, and is connected with the communication interface 107 for performing instruction query on the working state of the load, and the local alarm unit 109 is used for performing sound-light alarm when the state of the monitored load is abnormal.
The adapter power supply voltage of the power module 102 is 15V, the lithium battery power supply interface voltage is 12V, and the reference sampling power supply interface voltage is 5V.
Example two
on the basis of the first embodiment, more specifically, the device firstly tests the influence of different component combinations on an acoustic signal and a working state detection signal through laboratory conditions, establishes a one-to-one corresponding model, collects and analyzes the background noise of a circuit, selects a proper component combination according to the established corresponding model, forms a working state judgment basis, and further realizes the function of the device.
the specific implementation process is as follows:
The device firstly selects proper component values of C2, R1 and R2 according to the direct current impedance of a load and the frequency range of an output signal, wherein the component value of R2 is far smaller than the direct current impedance of the load, and the proper component value of R1 is selected on the premise of ensuring that the power consumption of a system is not increased, wherein the direct current impedance of the load and the component value of R2 are far smaller than the component value of R1, and the component value of C2 ensures that a reference sampling power supply signal does not influence the output signal of the sound masking system.
Short circuit monitoring:
assuming that the dc impedance of the load is RE, the voltage at the T1 position is VT1 ═ Vcc (RE + R2)/(RE + R2+ R1) when the system is operating normally, and VT1 ═ Vcc R2/(R2+ R1) when the short circuit operating state occurs. When the values of RE and R2 are far less than R1, the voltage calculation at the T1 position can be simplified to VT 1-Vcc R2/R1 when the system is operating normally, the voltage calculation at the T1 position can be simplified to VT 1-Vcc (RE + R2)/R1 when the short-circuit operating state occurs, and when R2 is far less than the direct-current impedance of the load, RE, the difference between the normal operating voltage and the short-circuit voltage at the T1 position is not less than VT 1-Vcc RE/R1. After the collected voltage data are processed by adopting a proper algorithm, the short-circuit working state of the load of the sound masking system can be judged simply, conveniently and quickly.
Open circuit monitoring:
similar to the short-circuit operation state monitoring, assuming that the dc impedance of the load is RE, the voltage at the T2 position is VT1 ═ Vcc R2/(RE + R2+ R1) when the system is operating normally, and VT1 is the background noise of the whole circuit when the open-circuit operation state occurs. Therefore, it is only necessary to ensure that the voltage at the T2 position is not overwhelmed by the background noise of the circuit when the system is operating normally.
more specifically, the sampling module 104 has the following features:
1. The normal state and the working state of the load can be effectively distinguished;
When the sampling module 104 samples a load, when an input signal is at a low level or no input signal, the sampling value is not affected by circuit background noise to cause the occurrence of a false alarm condition of a working state;
2. The output signal strength of the acoustic masking system is not influenced;
The influence of circuit background noise can be effectively improved by proper component values of the sampling module 104, and the influence on the strength of an input signal of the sound masking system can not be generated;
3. The working state can be rapidly identified;
The circuit system effectively improves the influence of background noise, greatly reduces the number of samples required by the same algorithm, and shortens the data processing time.
More specifically, the influence of different component combinations on acoustic signals and working state detection signals is tested through laboratory conditions to establish a one-to-one corresponding model, background noise of a circuit is collected and analyzed, a proper component combination is selected according to the established corresponding model to form a working state judgment basis, and then the function of the device is realized.
more specifically, the load working state real-time monitoring device is connected with the whole system through the input interface 103.
more specifically, the real-time load working state monitoring device can be independent of the whole system, and can also be integrated with the whole system into the same circuit system.
EXAMPLE III
On the basis of the first embodiment and the second embodiment, more specifically, by a bus mode, the real-time monitoring device for the load working state under the multi-load condition uploads the working information of all the signal generators of the sound masking system integrated with the real-time monitoring sound masking system for the load working state under the multi-load condition to a system monitoring center, and the system monitoring center carries out real-time monitoring on the working state of the whole system. The specific implementation process is as follows:
The real-time monitoring device for the working state of the load can select ports, a single device can mount 4 terminal loads at most, the terminal loads can be an audio generator and a vibration generator, and when the number of the loads is less than 4, the used ports or the unused ports can be selected.
More specifically, when a certain port is not set in a use state but connected to a terminal load, the working state of the port is not monitored.
More specifically, when a certain port is set to be in a use state but is not connected with a terminal load, the working state of the port is monitored in real time, and the working state of the disconnection alarm is reported.
More specifically, the load working state real-time monitoring device is connected to the system monitoring center in a bus mode, the system monitoring center identifies the load working state real-time monitoring device through address data of each device, and real-time data interaction can be carried out on the load working state real-time monitoring device and each load working state real-time monitoring device through the system monitoring center. The real-time monitoring and control of the working states of the multiple real-time monitoring devices for the working states of multiple loads are further realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. the device for monitoring the load working state of the sound masking system in real time under the condition of multiple loads is characterized by comprising a device shell, a sampling module and a power supply module, wherein the sampling module is connected with an output interface, an input interface and a monitoring module, and the monitoring module is connected with a communication interface;
The power module comprises a power management module, a lithium battery power supply interface, an adapter power supply interface and a reference sampling power supply interface, wherein the sampling module comprises a resistor R1, a resistor R2, a capacitor C1, a capacitor C2, a reference sampling power supply Vcc, a load, a signal Input end Input, a short-circuit working state signal sampling output T1, a broken circuit working state signal sampling output T2 and the monitoring module is connected with the reference sampling power supply Vcc.
2. the device for monitoring the working state of the load of the sound masking system under the condition of multiple loads according to claim 1, wherein the output interface is connected with an audio generator and a vibration generator.
3. the device for monitoring the working state of the load of the sound masking system under the condition of multiple loads according to claim 1, wherein the monitoring module comprises a processor and a local alarm unit, and the processor is connected with the sampling module.
4. The device for monitoring the working state of the load of the sound masking system under the condition of multiple loads according to claim 1, wherein the voltage of an adapter power supply interface of the power supply module is 15V.
5. The device for monitoring the working state of the load of the sound masking system under the condition of multiple loads according to claim 1, wherein the voltage of the power supply interface of the lithium battery is 12V.
6. The device for monitoring the working state of the load under the condition of multiple loads of the sound masking system according to claim 1, wherein the reference sampling power supply interface voltage is 5V.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910879457.7A CN110568290A (en) | 2019-09-18 | 2019-09-18 | Real-time monitoring device for load working state of sound masking system under multi-load condition |
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| CN201910879457.7A CN110568290A (en) | 2019-09-18 | 2019-09-18 | Real-time monitoring device for load working state of sound masking system under multi-load condition |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111508461A (en) * | 2020-04-13 | 2020-08-07 | 山东省计算中心（国家超级计算济南中心） | Information centralized management system and method for multi-sound masking system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661717A (en) * | 1984-11-19 | 1987-04-28 | Nissan Motor Co., Ltd. | Load condition determining apparatus |
| CN102967793A (en) * | 2012-11-23 | 2013-03-13 | 深圳市航盛电子股份有限公司 | Open-circuit short-circuit detection circuit of car-mounted terminal antenna |
| CN104142635A (en) * | 2013-05-10 | 2014-11-12 | 北京天大清源通信科技股份有限公司 | Sound masking system with monitoring center |
| CN106646077A (en) * | 2016-11-18 | 2017-05-10 | 深圳市有方科技股份有限公司 | Detection apparatus used for detecting open and short circuit of load |
| CN107797047A (en) * | 2017-09-27 | 2018-03-13 | 深圳和而泰智能控制股份有限公司 | Load state detecting method, device and electronic equipment |
| CN109406989A (en) * | 2018-11-12 | 2019-03-01 | 深圳和而泰小家电智能科技有限公司 | A kind of load circuit detection method, load detecting circuit and electronic equipment |
-
2019
- 2019-09-18 CN CN201910879457.7A patent/CN110568290A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4661717A (en) * | 1984-11-19 | 1987-04-28 | Nissan Motor Co., Ltd. | Load condition determining apparatus |
| CN102967793A (en) * | 2012-11-23 | 2013-03-13 | 深圳市航盛电子股份有限公司 | Open-circuit short-circuit detection circuit of car-mounted terminal antenna |
| CN104142635A (en) * | 2013-05-10 | 2014-11-12 | 北京天大清源通信科技股份有限公司 | Sound masking system with monitoring center |
| CN106646077A (en) * | 2016-11-18 | 2017-05-10 | 深圳市有方科技股份有限公司 | Detection apparatus used for detecting open and short circuit of load |
| CN107797047A (en) * | 2017-09-27 | 2018-03-13 | 深圳和而泰智能控制股份有限公司 | Load state detecting method, device and electronic equipment |
| CN109406989A (en) * | 2018-11-12 | 2019-03-01 | 深圳和而泰小家电智能科技有限公司 | A kind of load circuit detection method, load detecting circuit and electronic equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111508461A (en) * | 2020-04-13 | 2020-08-07 | 山东省计算中心（国家超级计算济南中心） | Information centralized management system and method for multi-sound masking system |
| CN111508461B (en) * | 2020-04-13 | 2023-11-03 | 山东省计算中心（国家超级计算济南中心） | Information centralization management system and method for multi-sound masking system |
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Application publication date: 20191213 |