CN207978053U - A kind of campus broadcasting visible dialogue system - Google Patents
A kind of campus broadcasting visible dialogue system Download PDFInfo
- Publication number
- CN207978053U CN207978053U CN201820519885.XU CN201820519885U CN207978053U CN 207978053 U CN207978053 U CN 207978053U CN 201820519885 U CN201820519885 U CN 201820519885U CN 207978053 U CN207978053 U CN 207978053U
- Authority
- CN
- China
- Prior art keywords
- circuit
- human body
- sound column
- human
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses a kind of campus broadcasting visible dialogue system, solving the problems, such as around outdoor sound column whether someone carries out work leads to waste of energy, its key points of the technical solution are that：Including outdoor sound column, it is equipped with loud speaker in the outdoor sound column, the outdoor sound column side is equipped with holding tank and is provided in the holding tank for whether sound column outside sensing chamber someone and to be opened and closed with this human body monitoring device of loud speaker；The human body monitoring device includes detection human body to receive human body IR wavelength and export the human testing circuit of human testing signal, be coupled to the human testing circuit to receive human testing signal and in response to human testing signal to open and close the control circuit of loud speaker；Only around outdoor sound column nobody when, the failure of human body monitoring device controlling loudspeaker, the utility model has the characteristics that energy saving.
Description
Technical field
The utility model is related to a kind of broadcast system, more particularly to a kind of campus broadcasting visible dialogue system.
Background technology
Traditional Campus Broadcasting System is relatively simple, only has a common voice broadcast function, it is convenient in all regular meetings or
It is unified when person takes an examination to report.However, with the continuous development of educational undertaking, the content of courses is also more and more abundant, teaching method
It becomes increasingly complex, oneself cannot meet the needs of current to traditional Campus Broadcasting System, therefore, it is wide design a kind of campus of modernization
Broadcast system has great significance.
A kind of campus broadcasting visible dialogue system disclosed in notification number CN205566503U, one of critical function is can be
Unified voice broadcast service is realized in classroom, playground, office building public area in campus, wherein the equipment being arranged in playground has broadcast
Audio-video terminal, level pressure power amplifier and outdoor sound column, level pressure power amplifier is connected with outdoor sound column plays the work of amplification sound column volume
With.
This disadvantage will occur, no matter whether presence of people is arranged in behaviour when there is transaction notification in campus on playground
Outdoor sound column on field can still be reported, this will lead to the waste of electric energy, therefore have improved space.
Utility model content
The purpose of this utility model is to provide a kind of campus broadcasting visible dialogue system, can be according to the people around outdoor sound column
The outer sound column work of body activity condition control room is to achieve the purpose that power and energy saving.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of campus broadcasting visible dialogue system, including outdoor sound column, the outdoor sound column is interior to be equipped with loud speaker, the room
Outer sound column side is equipped with holding tank and is provided in the holding tank for whether sound column outside sensing chamber someone and to be opened with this
Close the human body monitoring device of the loud speaker；The human body monitoring device includes detection human body to receive human body IR wavelength simultaneously
It exports the human testing circuit of human testing signal, be coupled to the human testing circuit to receive human testing signal and respond
In human testing signal to open and close the control circuit of loud speaker；Only around outdoor sound column nobody when, human body monitoring device control
Speaker fail.
Using the above scheme, in nature any object for having a temperature all can infrared radiation, what is only radiated is infrared
Line wavelength is different.The infrared ray of human body radiation（Energy）Wavelength is concentrated mainly on about 10000nm or so, when outdoor sound column week
It encloses there are when physical activity, human testing circuit is able to detect that human body and makes the loud speaker in the outer sound column of control circuit closed-chamber
Connection line, at this time loud speaker can work normally, when someone around is not detected in human testing circuit, control circuit will break
The connection line of loud speaker is opened, loud speaker is in failure state at this time, and at this time when there is transaction notification in campus, outdoor sound column will
Will not sounding, electric energy is saved with this.
Preferably, the holding tank opening is equipped with for assembling human body infrared lens.
Using the above scheme, the setting of lens is for by the infrared line focus of human body, to improve detection sensitivity.
Preferably, the holding tank opening and positioned at the lens outside be equipped with transparent panel.
Using the above scheme, the setting of transparent panel plays the role of windshield block rain and works as dust, prevent human body monitoring device by
Damage.
Preferably, the holding tank madial wall is inclined-plane, and holding tank opening area is made to be more than its inner bottom surface area.
Using the above scheme, can detect makes the detection range of human body monitoring device expand, and improves the reliability of detection.
Preferably, the human body monitoring device further includes being set between the human testing circuit and control circuit to go
Except the filter circuit of interference signal in human testing signal.
Using the above scheme, the setting of filter circuit avoids interfering for removing the interference signal in human testing signal
Signal false triggering control circuit.
Preferably, the filter circuit is RC filter circuits.
Using the above scheme, RC filter circuits good wave filtering effect and circuit structure is simple.
Preferably, the human body monitoring device further includes being set between the human testing circuit and control circuit to put
Big human testing signal and the amplifying circuit for exporting amplified signal.
Using the above scheme, faint human testing signal can be amplified with preferably drive control by amplifying circuit
Circuit.
Preferably, the human body monitoring device further includes being set between the amplifying circuit and control circuit and exporting ratio
Compared with the comparison circuit of signal, the comparison circuit is preset with voltage reference value, only when amplified signal value is more than voltage reference value,
Comparison circuit could drive control circuit work.
Using the above scheme, comparison circuit can effectively inhibit noise jamming, increase the anti-interference ability of whole device, drop
The probability of low false triggering.
Preferably, the comparison circuit includes for the adjusting circuit from voltage reference value described in main regulation.
Using the above scheme, adjust the setting of circuit for user according to actual conditions from main regulation voltage reference value, with
Meet the needs of different scenes.
In conclusion the utility model has the advantages that：
There are when physical activity around outdoor sound column, human testing circuit is able to detect that human body and control circuit is made to close
The loud speaker connection line in outdoor sound column is closed, loud speaker can work normally at this time, when week is not detected in human testing circuit
When being with people, control circuit will be switched off the connection line of loud speaker, and loud speaker is in failure state at this time, at this time when having in campus
When transaction notification, outdoor sound column will not sounding, electric energy is saved with this.
Description of the drawings
Fig. 1 is the system construction drawing of campus broadcasting visible dialogue system；
Fig. 2 is the Structure explosion diagram of outdoor sound column；
Fig. 3 is the circuit connection diagram of human testing circuit, filter circuit, amplifying circuit in human body monitoring device；
Fig. 4 is comparison circuit in human body monitoring device, adjusts circuit, raising in control circuit, level pressure power amplifier, outdoor sound column
Circuit connection diagram between sound device.
In figure：1, outdoor sound column；11, holding tank；12, lens；13, transparent panel；14, loud speaker；21, human testing electricity
Road；22, filter circuit；23, amplifying circuit；24, comparison circuit；241, circuit is adjusted；25, control circuit.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1, a kind of campus broadcasting visible dialogue system, including campus area network, Master Control Center, distributed control center with
And convenience center and remote work station；Campus area network includes main school district LAN and branch campus's LAN；Hereinafter, being based respectively on
Master Control Center and distributed control center are described in detail：
Overall control center includes the IP network broadcast host being connect with main school district local area network communication, internet radio, IP network
Vod server and IP network RP Radio Paging visual host machine；Wherein, IP network broadcast host, internet radio, IP network program request
Server can be disposed at studio, be used for staff, be responsible for unified broadcasting music, up/down class bell and listening etc.,
IP network broadcast host carries camera, can mutually call, and bidirectional visual intercommunication is very convenient；IP network RP Radio Paging is visual
Host can be disposed at leader office, facilitate school leaders that can talk in office, without talking to studio.
Distributed control center includes IP network broadcast host, internet radio and the IP network being connect with branch campus's local area network communication
RP Radio Paging visual host machine；Wherein, IP network broadcast host, internet radio and IP network RP Radio Paging visual host machine can be arranged
Studio in branch campus, identical as the function of being embodied in the studio of main school district, details are not described herein.
Convenience center is divided into teaching building region, office building region, playground region etc..Wherein, in teaching building region, such as
Classroom, arrangement broadcast intercommunication terminal, control panel, level pressure power amplifier, ceiling loudspeaker, broadcast sound, wherein broadcast intercommunication terminal and school
Garden LAN（Main school district or branch campus）Communication connection, control panel, level pressure power amplifier are connect with broadcast intercommunication terminal, ceiling loudspeaker
It is connect with level pressure power amplifier, therefore, it can be achieved that the voice unification in classroom is reported, the relevant personnel in teaching building can also utilize broadcast
Intercommunication terminal is talked with studio.Broadcast audio-video terminal, level pressure power amplifier and outdoor sound column are arranged in playground region,
In, broadcast audio-video terminal and campus area network communicate to connect, and level pressure power amplifier is connect with broadcast audio-video terminal, outdoor sound column and
Level pressure power amplifier connects, therefore, it can be achieved that in large-scale activities such as movement meetings, unification is reported.In office building region, such as office building
Public area, arrangement broadcast audio-video terminal, level pressure power amplifier and ceiling loudspeaker, wherein broadcast audio-video terminal and campus office
Domain Network Communication connection, level pressure power amplifier are connect with broadcast audio-video terminal, and ceiling loudspeaker are connect with level pressure power amplifier；And it is arranged in door
Defend the interphone extension of room；Audio alert stake therefore,
In addition, remote work station includes computer, and is connect by ADSL MODEM with main school district local area network communication, specifically
It is that ADSL MODEM are connected to internet, main school district LAN is accessed by internet, can be facilitated
When leader can be on business trips, portable computer is utilized（Notebook）To make a speech.
In addition, IP network broadcasts fire-fighting matrix, IP network broadcast fire-fighting matrix is connect with main school district local area network communication, when connecing
When receiving fire-fighting alarm signal, fire alarm audio file can be played from the audio-video terminal in region corresponding to trend, and can be strong
Switch to max volume.
As shown in Fig. 2, the side wall of above-mentioned outdoor sound column 1 is equipped with loud speaker 14, holding tank is additionally provided on its ipsilateral
11, the inner wall of holding tank 11 is inclined-plane, and the area of its open end is made to be more than the area of its inner bottom surface.It is equipped in holding tank 11
For whether someone and opening and closing with this human body monitoring device of loud speaker 14 around sound column outside sensing chamber 1；In holding tank 11 simultaneously
Lens 12 are provided on the outside of human body monitoring device, lens 12 can be by the infrared line focus of human body, to improve detection sensitivity；
In order to ensure that human body monitoring device is not interfered by extraneous rainwater, dust, also fixed by screw in 11 opening of holding tank
One transparent panel 13 is installed, 13 material of transparent panel is preferably glass.
As shown in figure 3, human body monitoring device includes human testing circuit 21, filter circuit 22, amplifying circuit 23.
Human testing circuit 21 is used to receive the infrared light of human body comprising pyroelectricity IC1, model D203S,
It is human testing signal u1 that the ends D, which are connected to the ends power supply VCC, G and are connected to the output of the ends ground terminal GND, S,.
Filter circuit 22 is RC filter circuits, for removing the interference signal in human testing signal u1 comprising resistance
One end of R1, capacitance C1, capacitance C1 are coupled to human testing signal u1 and the other end is connected to ground terminal GND, one end of resistance R1
It is filtering signal u2 to be coupled to human testing signal u1 and other end output.
Amplifying circuit 23 is for amplifying filtering signal u2 comprising amplifier IC2, the model of amplifier IC2
LM324, positive input are coupled to filtering signal u2, and reverse input end is connected to one end of a resistance R2, and resistance R2's is another
One end is connected to ground terminal GND, and a resistance R3 is in series between the output end and reverse input end of amplifier IC2, amplifier IC2's
Output end output is amplified signal u3.
As shown in figure 4, human body monitoring device further include comparison circuit 24, control circuit 25, above-mentioned level pressure power amplifier and on
State loud speaker 14.
Comparison circuit 24 is for amplified signal u3 to be compared with the voltage reference value of its own, to inhibit noise,
Including comparator IC3, adjust circuit 241.The model LM393 of comparator IC3, positive input are coupled to amplified signal
U3, output end output are comparison signal u4, and reverse input end, which is coupled to, adjusts circuit 241, adjusts circuit 241 and compares for adjusting
The voltage reference value of device IC3 comprising one end of potentiometer RP, potentiometer RP be connected to the reverse input end of comparator IC3 and
The other end is connected to one end of resistance R4, and the other end of resistance R4 is connected to ground terminal GND, adjusts the electricity that circuit 241 is generally adjusted
Press a reference value smaller.
Control circuit 25 is used to control the opening and closing of level pressure power amplifier and the loud speaker 14 in outdoor sound column 1 comprising triode
VT1, relay KM are controlled by the normally opened contact KM1-1 of relay KM1.
The model NPN9013 of triode VT1, base terminal are coupled to comparison signal u4, and emitter terminal is connected to an electricity
One end of R5 is hindered, the other end of resistance R5 is connected to ground terminal GND, and collector terminal is connected to one end of relay KM1, relay
The other end of KM1 is connected to power supply VCC, and one end of normally opened contact KM1-1 is connected to level pressure power amplifier and the other end is connected to and raises one's voice
Device 14.
The course of work of human body monitoring device：
When physical activity being not present around outdoor sound column 1, pyroelectricity IC1 outputs are low level human testing signal
U1, low level human testing signal u1 are by the execution of not triggering following circuit, therefore normally opened contact KM1-1 is in and disconnects shape
State so that be off between level pressure power amplifier and loud speaker 14.
When 1 surrounding of outdoor sound column is there are when physical activity, pyroelectricity IC1 outputs are the human testing signal u1 of high level,
The filtered circuit of the human testing signal u1 of high level 22 exports stable filtering signal u2 after removing interference signal therein,
Filtering signal u2 exports amplified signal u3 after amplifier IC2 enhanced processings, and amplified signal u3 is being transmitted to comparator IC3 just
To input terminal and export the comparison signal u3 of high level, the comparison signal u3 control triode VT1 conductings of high level so that relay
Device KM1 is powered, and when relay KM1 is powered, normally opened contact KM1-1 is closed to make level pressure power amplifier be electrically connected with loud speaker 14, makes
Outdoor sound column 1 can work normally.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (9)
1. a kind of campus broadcasting visible dialogue system, including outdoor sound column（1）, the outdoor sound column（1）It is interior to be equipped with loud speaker
（14）, it is characterized in that：The outdoor sound column（1）Side is equipped with holding tank（11）And in the holding tank（11）Interior setting is useful
In sound column outside sensing chamber（1）Whether someone and the loud speaker is opened and closed with this（14）Human body monitoring device；The human body monitoring
Device includes detection human body to receive human body IR wavelength and export the human testing circuit of human testing signal（21）, coupling
In the human testing circuit（21）To receive human testing signal and in response to human testing signal to open and close loud speaker（14）
Control circuit（25）；Only when outdoor sound column（1）Around nobody when, human body monitoring device controlling loudspeaker（14）Failure.
2. a kind of campus broadcasting visible dialogue system according to claim 1, it is characterized in that：The holding tank（11）Opening
Place is equipped with for assembling human body infrared lens（12）.
3. a kind of campus broadcasting visible dialogue system according to claim 2, it is characterized in that：The holding tank（11）Opening
Place and be located at the lens（12）Outside be equipped with transparent panel（13）.
4. a kind of campus broadcasting visible dialogue system according to claim 1, it is characterized in that：The holding tank（11）Inside
Wall is inclined-plane, makes holding tank（11）Opening area is more than its inner bottom surface area.
5. a kind of campus broadcasting visible dialogue system according to claim 1, it is characterized in that：The human body monitoring device is also
Including being set to the human testing circuit（21）With control circuit（25）Between to remove interference signal in human testing signal
Filter circuit（22）.
6. a kind of campus broadcasting visible dialogue system according to claim 5, it is characterized in that：The filter circuit（22）For
RC filter circuits.
7. a kind of campus broadcasting visible dialogue system according to claim 1, it is characterized in that：The human body monitoring device is also
Including being set to the human testing circuit（21）With control circuit（25）Between to amplify human testing signal and export amplification
The amplifying circuit of signal（23）.
8. a kind of campus broadcasting visible dialogue system according to claim 7, it is characterized in that：The human body monitoring device is also
Including being set to the amplifying circuit（23）With control circuit（25）Between and export the comparison circuit of comparison signal（24）, described
Comparison circuit（24）It is preset with voltage reference value, only when amplified signal value is more than voltage reference value, comparison circuit（24）Ability
Drive control circuit（25）Work.
9. a kind of campus broadcasting visible dialogue system according to claim 8, it is characterized in that：The comparison circuit（24）Packet
It includes for the adjusting circuit from voltage reference value described in main regulation（241）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820519885.XU CN207978053U (en) | 2018-04-12 | 2018-04-12 | A kind of campus broadcasting visible dialogue system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820519885.XU CN207978053U (en) | 2018-04-12 | 2018-04-12 | A kind of campus broadcasting visible dialogue system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207978053U true CN207978053U (en) | 2018-10-16 |
Family
ID=63763941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820519885.XU Expired - Fee Related CN207978053U (en) | 2018-04-12 | 2018-04-12 | A kind of campus broadcasting visible dialogue system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207978053U (en) |
-
2018
- 2018-04-12 CN CN201820519885.XU patent/CN207978053U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209388134U (en) | A kind of intelligent sound control equipment and smart home system | |
| CN206388060U (en) | Pass through the wearable intelligent house control system of Voice command | |
| CN204759076U (en) | Home network intelligence remote controller | |
| CN203457250U (en) | Intelligent video intercommunication security system | |
| CN106997649A (en) | A kind of network intelligence open flame detector control system and its control method | |
| CN103002270A (en) | Digital indoor unit and intelligent home security system | |
| CN205721329U (en) | Intelligent terminal for internet of things | |
| CN205301847U (en) | Intelligent household system based on internet of things | |
| CN202957929U (en) | Digital indoor unit and intelligent home security system | |
| CN107846335A (en) | A kind of intelligent domestic system based on wireless communication | |
| CN106209610A (en) | Embedded type household information data center Intelligent gateway system device | |
| CN106774217A (en) | A kind of intelligent domestic system | |
| CN104635687A (en) | Digital intelligent home security alarm system | |
| CN204791223U (en) | Intelligent entrance guard all -in -one | |
| CN207978053U (en) | A kind of campus broadcasting visible dialogue system | |
| CN205230258U (en) | Intelligent family security system | |
| CN212515431U (en) | Wisdom house control system | |
| JPH11203579A (en) | Security system | |
| CN209787275U (en) | Low-power consumption wireless intelligent doorbell camera | |
| CN207177587U (en) | A kind of sensor-based intelligent door and window monitoring device | |
| CN112198808A (en) | All-weather automatic sensing intelligent household control device based on Internet of things | |
| CN111918108A (en) | Linkage control method and system, computer equipment and readable storage medium | |
| CN206194082U (en) | Domestic intelligent security supervisory equipment | |
| CN110580797A (en) | Home security monitoring system | |
| CN205451345U (en) | Burglary -resisting window system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |