CN109981145A - Fire broadcast area control system and method - Google Patents
Fire broadcast area control system and method Download PDFInfo
- Publication number
- CN109981145A CN109981145A CN201910252752.XA CN201910252752A CN109981145A CN 109981145 A CN109981145 A CN 109981145A CN 201910252752 A CN201910252752 A CN 201910252752A CN 109981145 A CN109981145 A CN 109981145A
- Authority
- CN
- China
- Prior art keywords
- control signal
- control
- loading device
- transfer wire
- wire
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/10—Arrangements for replacing or switching information during the broadcast or the distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
- H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Alarm Systems (AREA)
Abstract
This application discloses a kind of fire broadcast area control system and methods.By the way that broadcast singal, control signal and electric power to be loaded onto two common conducting wires and transmit.And broadcast singal, control signal and electric power will be filtered separation using the mode of filtering demodulation, broadcast singal, control signal and electric power are passed through into two conducting wires while being transmitted to realize, effective solution is existing in the prior art more with line, it is at high cost, and the technical problem of route poling trouble.
Description
Technical field
This application involves fire broadcast region control fields, more particularly to a kind of fire broadcast area control system and side
Method.
Background technique
Existing fire broadcast system wiring mode has multiple-way system and a bus system, and when multiple-way system wiring needs two broadcast
Line, two signal wires, two power supply lines；Two lines bus technology is used when bus wiring, power supply line, which is closed two with signal wire, is
One, signal and power supply share a bus.
Common multiple-way system will use 6 lines, more with line, and can be saved when using bus wiring using two lines bus system
About use line, but still need to lay 4 lines, still cause it is more with line, it is at high cost, and route poling trouble, spend a large amount of
Manpower and material resources.
It is at high cost for above-mentioned existing in the prior art more with line, and the technical problem of route poling trouble, mesh
It is preceding not yet to put forward effective solutions.
Summary of the invention
Embodiment of the disclosure provides a kind of fire broadcast area control system and method, at least to solve the prior art
Present in it is more with line, it is at high cost, and route poling trouble technical problem.
According to the one aspect of the embodiment of the present disclosure, a kind of fire broadcast area control system is provided, including transmission is led
Line, the first loading device, the second loading device, third loading device, loudspeaker and control module.Transfer wire, which is two, leads
Line.First loading device, the second loading device and third loading device are connect with transfer wire respectively, in which: the first load
Device is used to first control signal being loaded onto transfer wire, and is transmitted by transfer wire.Second loading device is used for
Second broadcast singal is loaded onto transfer wire, and is transmitted by transfer wire.And third loading device is for will be electric
Power is loaded onto transfer wire, and is transmitted by transfer wire.Control module is connect with transfer wire and loudspeaker respectively, control
Molding block is used to control the second broadcast singal that loudspeaker plays transfer wire transmission according to first control signal.And first adds
It carries and sets including the first bandpass filter, for only first control signal being allowed to pass through.Second loading device includes the first low pass
Filter and capacitance, for only allowing the second broadcast singal to pass through.Third loading device includes the second low-pass filter, is used
Pass through in only permission electric power.
Optionally, above system further includes electric power separator and power amplifier device, and control module configuration includes the 4th
Low-pass filter and capacitance.Wherein, electric power separator is connect with transfer wire and control module respectively, is used for from transmission
Electric power is isolated in conducting wire, is powered for control module, wherein electric power separator includes third low-pass filter, for only permitting
Perhaps electric power passes through.Power amplifier device is connect with the second loading device, for lower first broadcast singal of power to be enlarged into
Biggish second broadcast singal of power, and the second broadcast singal is transmitted to the second loading device.4th low-pass filter and every
Straight capacitor is used to filter out the second broadcast singal of transfer wire transmission.
Optionally, above system further includes the first modulation-demodulation device, and control module configuration further includes the second modulation /demodulation
Device.Wherein, control module generates the 4th control signal comprising control module work state information, the second modulation-demodulation device
For being modulated to the 4th control signal, the 5th control signal is generated.First modulation-demodulation device is used to believe the second control
It number is modulated to first control signal and is transmitted to the first loading device, second control signal includes control speaker operation state
Information.Second modulation-demodulation device is also used to demodulate first control signal, generates third and controls signal.Control module
The working condition of signal control loudspeaker is controlled according to third.
Optionally, in above system, control module further includes the 4th loading device.Wherein, the 4th loading device and second
Modulation-demodulation device connection is used for the 5th control signal loading to transfer wire, and is transmitted by transfer wire.First
The 5th control signal that bandpass filter is also used to transmit transfer wire filters out, and is transmitted to the first modulation-demodulation device, the
One modulation-demodulation device demodulates the 5th control signal, generates the 6th control signal, for monitoring control module work shape
State.4th loading device further includes third bandpass filter, for will only allow first control signal and the 5th control signal to lead to
It crosses, wherein the 5th control signal is filtered out, transfer wire is transmitted to and is transmitted, also, the 4th loading device is by transfer wire
The first control signal of transmission filters out, and is transmitted to the second modulation-demodulation device.
Optionally, in above system, control module further includes the second bandpass filter and the 4th loading device, fire broadcast
Area control system further includes the 4th bandpass filter.Wherein, the second bandpass filter is connect with the second modulation-demodulation device, is used
In the first control signal for filtering out transfer wire transmission, and the first control signal that will filter out is transmitted to the second modulation /demodulation
Device, the 4th loading device are connect with the second modulation-demodulation device, are used for the 5th control signal loading to transfer wire, and lead to
Transfer wire is crossed to be transmitted.4th bandpass filter is used to filter out the 5th control signal of transfer wire transmission, and by the
Five control signals are transmitted to the first modulation-demodulation device, and the first modulation-demodulation device demodulates the 5th control signal, generates
6th control signal, the 6th control signal are used to monitor the working condition of control module.
According to the another aspect of the embodiment of the present disclosure, a kind of method of fire broadcast region control is additionally provided, comprising: will
Second broadcast singal is loaded onto two conducting wires, and passes through two wire transmissions.First control signal is loaded onto two conducting wires, and
Pass through two wire transmissions.And electric power is loaded onto two conducting wires, and pass through two wire transmissions.Wherein, the first control letter
Number include information for controlling speaker operation.
Optionally, the above method further include: the first control signal of two wire transmissions is filtered, is demodulated, is generated
Third controls signal；Speaker operation is controlled using third control signal.Generate the 4th control signal, to the 4th control signal into
Row modulation generates the 5th control signal.By the 5th control signal loading to two conducting wires, and pass through two wire transmissions.Wherein,
4th control signal includes the information of working state of system.
Optionally, method further include: second control signal is modulated to first control signal.To the of two wire transmissions
Five control signals are filtered, demodulate, and generate the 6th control signal.
Optionally, method further include: the first broadcast singal is enlarged into biggish second broadcast singal of power, with
And.Filter out the broadcast singal of two wire transmissions.
Optionally, method further include: the electric power of two wire transmissions is separated, electric power is isolated, is load supplying.
In the embodiment of the present disclosure, using the side that broadcast singal, control signal and electric power are loaded onto two transfer wires
Formula is transmitted by two conducting wires, and having reached only can be complete by electric power, broadcast singal and control signal by both threads transmission
The purpose that portion is transmitted saves to realize saving wire rod and is routed artificial technical effect.And then it solves in the prior art
It is existing more with line, it is at high cost, and the technical problem of route poling trouble.
Detailed description of the invention
Attached drawing described herein is used to provide further understanding of the disclosure, constitutes part of this application, this public affairs
The illustrative embodiments and their description opened do not constitute the improper restriction to the disclosure for explaining the disclosure.In the accompanying drawings:
Fig. 1 is the fire broadcast area control system structural schematic diagram according to embodiment of the present disclosure first aspect；
Fig. 2 is the further signal of the fire broadcast area control system according to embodiment of the present disclosure first aspect
Figure；
Fig. 3 is the further signal of the fire broadcast area control system according to embodiment of the present disclosure first aspect
Figure；
Fig. 4 is the power amplifier device connection signal schematic diagram according to embodiment of the present disclosure first aspect；
Fig. 5 is the flow chart of the method for the control of the fire broadcast region according to embodiment of the present disclosure the second aspect；
Fig. 6 is the further stream of the method for the control of the fire broadcast region according to embodiment of the present disclosure the second aspect
Cheng Tu；And
Fig. 7 is the further stream of the method for the control of the fire broadcast region according to embodiment of the present disclosure the second aspect
Cheng Tu.
Transfer wire 110, the first loading device 121, the second loading device 122, third loading device 123, the first band logical
Filter 124, the first low-pass filter 125, capacitance 126, the second low-pass filter 127, the second bandpass filter 128,
4th loading device 129, third bandpass filter 130, the 4th bandpass filter 131, third low-pass filter the 132, the 4th are low
Bandpass filter 133, capacitance 134, control module 140, the first modulation-demodulation device 151, the second modulation-demodulation device 152,
Loudspeaker 160, power amplifier device 170, electric power separator 180.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and technology, method and apparatus should be considered as authorizing specification
A part.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, rather than
As limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label and word
Mother indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
It does not need that it is further discussed.
Embodiment
First aspect according to an embodiment of the present invention provides a kind of fire broadcast area control system, including transmission
Conducting wire 110, the first loading device 121, the second loading device 122, third loading device 123, loudspeaker 160 and control module
140.Transfer wire 110 is two conducting wires.First loading device 121, the second loading device 122 and third loading device 123
It is connect respectively with transfer wire 110, in which: the first loading device 121 is used to first control signal being loaded onto transfer wire
110, and transmitted by transfer wire 110.Second loading device 122 is used to the second broadcast singal being loaded onto transfer wire
110, and transmitted by transfer wire 110.And third loading device 123 is used to electric power being loaded onto transfer wire 110,
And it is transmitted by transfer wire 110.Control module 140 is connect with transfer wire 110 and loudspeaker 160 respectively, controls mould
Block 140, which is used to control loudspeaker 160 according to first control signal, plays the second broadcast singal that transfer wire 110 transmits.And
First loading device 121 includes the first bandpass filter 124, for only first control signal being allowed to pass through.Second loading device
122 include the first low-pass filter 125 and capacitance 126, for only allowing the second broadcast singal to pass through.Third loading device
123 include the second low-pass filter 127, for only electric power being allowed to pass through.
Specifically, in the present embodiment, as shown in Figure 1, Figure 2 and shown in Fig. 3, fire broadcast area control system, including pass
Transporting line 110, the first loading device 121, the second loading device 122, third loading device 123, loudspeaker 160 and control mould
Block 140, wherein the first loading device 121, the second loading device 122, third loading device 123 respectively by first control signal,
Second broadcast singal and electric power are loaded onto transfer wire 110, by transfer wire 110 transmit electric power, first control signal with
And second broadcast singal, and avoid during loading to electric system, the second broadcast singal circuit, first control signal electricity
Road generates interference.Wherein, the electric power in the present embodiment is direct current.First loading device 121 includes the first bandpass filter
124, using the frequency selective characteristic of the first bandpass filter 124, first control signal is loaded onto transfer wire 110, and every
From electric power and the second broadcast singal, prevent electric power, the second broadcast singal and other signals from generating to first control signal circuit
Interference.
Second loading device 122 includes the first low-pass filter 125 and capacitance 126, utilizes the first low-pass filter
125 frequency selective characteristic and capacitance 126 stops the effect of DC power transmission, and the second broadcast singal is loaded onto transmission and is led
Line 110, and first control signal and electric power is isolated, prevent first control signal, electric power and other signals from believing the second broadcast
Number circuit generates interference.
Third loading device 123 includes the second low-pass filter 127, is selected using the frequency of the second low-pass filter 127
Electric power is loaded onto transfer wire 110, and the first signal and the second broadcast singal is isolated by characteristic, prevents the first signal, second extensively
It broadcasts signal and other signals and interference is generated to electric system.
First control signal includes to control the information of 160 working condition of loudspeaker, and control module 140 is according to the first control
The control information that signal includes switches the working condition of loudspeaker 160.
This programme is by using the first loading device 121, the second loading device 122, third loading device 123, by second
Broadcast singal, first control signal and electric power are loaded onto 2 conducting wires and are transmitted, to be existing in the prior art more with line,
It is at high cost, and the technical problem of route poling trouble provides solution.
Optionally, above system further includes electric power separator 180 and power amplifier device 170, control module configuration 140
Including the 4th low-pass filter 133 and capacitance 134.Wherein, electric power separator 180 respectively with transfer wire 110 and control
Molding block 140 connects, and for isolating electric power from transfer wire 110, powers for control module 140, wherein electric power separation dress
Setting 180 includes third low-pass filter 132, for only electric power being allowed to pass through.Power amplifier device 170 and the second loading device
122 connections for lower first broadcast singal of power to be enlarged into biggish second broadcast singal of power, and second are broadcasted
Signal is transmitted to the second loading device 122.4th low-pass filter 133 and capacitance 134 are for filtering out transfer wire 110
Second broadcast singal of transmission.
Specifically, in the present embodiment, with reference to shown in Fig. 1, Fig. 2 and Fig. 3, electric power separator 180 is low using third
The electric power that the frequency selective characteristic of bandpass filter 132 is isolated is the power supply of control module 140, to no longer need separately to set up electric power again
For line for powering, wire rod can be saved by realizing, and reduce the troublesome purpose of route poling.
Power amplifier device 170 is connect with the second loading device 122, as shown in Figure 1 to 4, for power is lower
First broadcast singal is enlarged into biggish second broadcast singal of power, for providing the audio-frequency electric of certain power for loudspeaker 160
Signal, also, the signal after power amplification is loaded on transfer wire 110 by the second loading device 122 and is transmitted.
4th low-pass filter 133 filters out the second broadcast singal, so as to complete the load of the second broadcast singal, passes
Defeated and receive process.
Preferably, above system fire broadcast area control system further includes the first modulation-demodulation device 151, control module
140 configurations further include the second modulation-demodulation device 152.Wherein, it includes 140 working condition of control module that control module 140, which generates,
4th control signal of information, the second modulation-demodulation device 152 are used to be modulated the 4th control signal, generate the 5th control
Signal.First modulation-demodulation device 151 is for being modulated to first control signal for second control signal and being transmitted to the first load
Device 121, second control signal include to control the information of 160 working condition of loudspeaker.Second modulation-demodulation device 152 is also used
It is demodulated in first control signal, generates third and control signal.Control module 140 controls signal according to third and controls loudspeaking
The working condition of device 160.
Specifically, in the present embodiment, with reference to shown in Fig. 1, Fig. 2 and Fig. 3, control module generates the according to working condition
Four control signals, 140 work state information of control module that system can include according to the 4th control signal, constantly monitoring control
The working condition of module 140.
Second modulation-demodulation device 152 is used to be modulated the 4th control signal, generates the 5th control signal, i.e., by the
Four control signal loadings prepare to certain frequency to transmit ready-made frequency on transfer wire 110.
First modulation-demodulation device 151 will be for that will include the second control letter of the information of control 160 working condition of loudspeaker
Number it is modulated to first control signal, and by first control signal and is transmitted to the first loading device 121, and the second modulatedemodulate
It adjusts device 152 to be also used to demodulate first control signal, generates third and control signal.Control module 140 is according to third control
The working condition of signal control loudspeaker 160 processed.That is, first control signal, second control signal and third control signal its
Real is inherently a kind of signal, is used for transmission the information of control 160 working condition of loudspeaker, be transmission each stage not
Same specific form.To, by this scheme, for guarantee the signal of control speaker operation state in transmission process not with its
Its signal interferes with each other, and by being modulated, load, transmit, filter and demodulate to control signal, completes
The transmission of transfer wire 110, received overall process, realize and purpose that other signals are transmitted in same wire.
Preferably, in above system, control module 140 further includes the 4th loading device 129.Wherein, the 4th loading device
129 connect with the second modulation-demodulation device 152, for leading by the 5th control signal loading to transfer wire 110, and by transmission
Line 110 is transmitted.The 5th control signal that first bandpass filter 124 is also used to transmit transfer wire 110 filters out, and passes
The first modulation-demodulation device 151 is transported to, the first modulation-demodulation device 151 demodulates the 5th control signal, generates the 6th control
Signal processed, for monitoring 140 working condition of control module.4th loading device 129 further includes third bandpass filter 130, is used
It pass through in by only permission first control signal and the 5th control signal, wherein the 5th control signal is filtered out, transmission is transmitted to and leads
Line 110 is transmitted, also, the 4th loading device 129 filters out the first control signal that transfer wire 110 transmits, and is transmitted to
Second modulation-demodulation device 152.
Specifically, as shown in Fig. 2, the 4th loading device 129 will carry out in the 5th control signal loading to transfer wire 110
Transmission.Also, the third bandpass filter 130 that the 4th loading device 129 includes utilizes the frequency of third bandpass filter 130
Characteristic is selected, not only by the signal entry deterrence loading device of periphery, prevents from interfering loading device, moreover it is possible to by the first control
Signal processed is filtered, and is sent to the second modulation-demodulation device 152, by the second modulation-demodulation device 152 to first control signal
It is demodulated.Also, the 5th control signal that the first bandpass filter 124 is also used to transmit transfer wire 110 filters out, and passes
The first modulation-demodulation device 151 is transported to, the first modulation-demodulation device 151 demodulates the 5th control signal, generates the 6th control
Signal processed, for monitoring 140 working condition of control module.So as to complete the transmission and reception of electric power, broadcast singal, and control
The modulation and the overall process of solution of signal processed.
In addition, according to the physical characteristic of the first bandpass filter 124 and third bandpass filter 130, it is also possible to by institute the
One control signal, second control signal and first control signal and the 4th control signal, the 5th control signal and the 6th control
Signal processed alternately loads and transmission, i.e., working condition is in half-duplex state, is more advantageous to and thoroughly solves interfering with each other for signal.
Preferably, control module 140 further includes the second bandpass filter 128 and the 4th loading device 129, fire broadcast area
Domain control system further includes the 4th bandpass filter 131.Wherein, the second bandpass filter 128 and the second modulation-demodulation device 152
Connection, for filtering out the first control signal of the transmission of transfer wire 110, and the first control signal that will filter out is transmitted to the
Two modulation-demodulation devices 152, the 4th loading device 129 are connect with the second modulation-demodulation device 152, for controlling signal for the 5th
It is loaded onto transfer wire 110, and is transmitted by transfer wire 110.4th bandpass filter 131 is led for filtering out transmission
The 5th control signal that line 110 transmits, and the 5th control signal is transmitted to the first modulation-demodulation device 151, the first modulatedemodulate
It adjusts device 151 to demodulate the 5th control signal, generates the 6th control signal, the 6th control signal is for monitoring control module
140 working condition.
Specifically, in the present embodiment, as shown in figure 3, the 4th loading device 129 extremely transmits the 5th control signal loading
It is transmitted on conducting wire 110.Also, the third bandpass filter 130 that the 4th loading device 129 includes prevents the signal of periphery
Into loading device, prevent from interfering loading device.Second bandpass filter 128 filters out first control signal,
It is sent to the second modulation-demodulation device 152, first control signal is demodulated by the second modulation-demodulation device 152.Also, the
The 5th control signal that four bandpass filters 131 are used to transmit transfer wire 110 filters out, and is transmitted to the first modulation /demodulation dress
151 are set, the first modulation-demodulation device 151 demodulates the 5th control signal, the 6th control signal is generated, for monitoring control
140 working condition of module, also, the 4th control signal, the 5th control signal and the 6th control signal are substantially also a kind of
Signal.To complete the transmission and reception of electric power, broadcast singal according to this programme, and the modulation of control signal, transmission and
The overall process of demodulation.
To provide a kind of fire broadcast area control system according to the first aspect of the present embodiment.In the system
Interior, broadcast singal, control signal and electric power are transmitted commonly through two conducting wires.By using loading device, will broadcast
Signal, control signal and electric power are loaded onto two common transfer wires, without being impacted to respective circuit, and
It is modulated using modulating device by signal is controlled, interfering with each other in transmission process is avoided, so that realizing will broadcast
Signal, control signal and electric power are transmitted simultaneously by two conducting wires, and pass through demodulating equipment, filter, power amplification
The devices such as device, effective solution are existing in the prior art more with line, at high cost, and the troublesome technology of route poling asks
Topic.
According to the second aspect of the embodiment of the present disclosure, a kind of fire broadcast region control method is provided, comprising:
S302: the second broadcast singal is loaded onto two conducting wires, and passes through above-mentioned two wire transmissions；
S304: first control signal is loaded onto above-mentioned two conducting wires, and passes through above-mentioned two wire transmissions.And
S306: electric power is loaded onto above-mentioned two conducting wires, and passes through above-mentioned two wire transmissions.Wherein, the first control letter
Number include information for controlling speaker operation.
It specifically, is by the second broadcast singal, first control signal and electric power point as shown in figure 5, including 3 steps
It is not loaded onto same two conducting wires, and is transmitted by this two conducting wires.Wherein first control signal includes to raise for controlling
The information of sound device work.The process of load is by the mistake of the second broadcast singal, first control signal and electric power lead-in conductor
Journey.By the second broadcast singal, first control signal and electric power simultaneously lead-in conductor, each will guarantee other two kinds and
Other signals do not have an impact itself, this just needs the loading device using embodiment first aspect, load while with
Other circuits keep isolation to prevent from interfering, to can realize using two the second broadcast singal of conducting wire simultaneous transmission circuits, first
Control signal and electric power, be it is existing in the prior art more with line, it is at high cost, and the technical problem of route poling trouble mentions
Solution is supplied.
Preferably, the above method, further includes:
S402: being filtered the first control signal of above-mentioned two wire transmissions, demodulate, and generates third and controls signal；
S404: speaker operation is controlled using third control signal.
S502: the 4th control signal is generated；
S504: being modulated the 4th control signal, generates the 5th control signal；
S506: by the 5th control signal loading to above-mentioned two conducting wires, and pass through above-mentioned two wire transmissions.
Wherein, the 4th control signal includes the information of working state of system.
Specifically, in the present embodiment, as shown in fig. 6, method includes being filtered, solving to the first control signal of transmission
It adjusts, generates third and control signal, also, using the work of third control signal control loudspeaker, thus, realize control signal
Transmission on two conducting wires controls speaker operation state with and using control signal.As shown in fig. 7, method is also
Including generating the 4th control signal, the 4th control signal is modulated, generates the 5th control signal；5th control signal is added
Above-mentioned two conducting wires are loaded onto, and pass through above-mentioned two wire transmissions.It will include the 4th control letter of system health information
Number be modulated, and the modulated signal of generation be loaded onto conducting wire and is transmitted, can to avoid signal each in transmission process it
Between interfere with each other.
Preferably, the above method further includes that second control signal is modulated to first control signal.To two wire transmissions
The 5th control signal be filtered, demodulate, generate the 6th control signal.
Specifically, in the present embodiment, first control signal in the above-mentioned methods is second control signal through ovennodulation
It generates, that is, first control signal, second control signal, third control signal are substantially a kind of signals, are intended merely to
It prevents from interfering and modulating the signal to certain frequency and certain specification in transmission process.Equally, the 5th control signal warp
It crosses demodulation and generates the 6th control signal, i.e., the 4th control signal, the 5th control signal, the 6th control signal are substantially also a kind of
Signal, each signal are form different in transmission process.Also, pass through load, the modulation, solution in above method
It adjusts, effective solution is transmitting the problem of interfering with each other existing for multi-signal on two conducting wires, realize in two conducting wires
Transmission and does not interfere with mutually multi-signal, thus be it is existing in the prior art more with line, it is at high cost, and route poling is numb
Tired technical problem provides solution.
Preferably, the above method, further include the first broadcast singal is enlarged into biggish second broadcast singal of power, and
Filter out the broadcast singal of two wire transmissions.
Specifically, in the present embodiment, the first broadcast singal is amplified, provides power biggish second for loudspeaker
Broadcast singal.Meet the volume of actual requirement to play out loudspeaker, needs to carry out power to low-power broadcast singal to put
Greatly, also, by amplified signal loading to two conducting wires it transmits, saves the cost being routed with line.Also, it will transmission
The filtering of the second broadcast singal, stop electric power and control signal, generate the second pure broadcast singal, to reach by two
Root conducting wire carries out the purpose of the second broadcast singal of transmission.
Preferably, method further include: the electric power of two wire transmissions is separated, electric power is isolated, is powered for equipment.
Specifically, in the present embodiment, the electric power in two conducting wires is separated, isolates electric power, be each electric equipment
Power supply.By separation, other signals and interference can be filtered out, obtain stable electric power, electric equipment operation can be made more flat
Surely, the generation of noise is reduced.
To provide a kind of method of fire broadcast region control according to the other side of the present embodiment.It is main logical
The mode of ovennodulation by different control signal modulations to different frequencies, and by the second broadcast singal, control signal and electricity
Power is loaded onto two common conducting wires and is transmitted.Using the second broadcast singal of method, control signal and electricity being separated by filtration
Power is separated, and demodulates corresponding control signal using the mode of demodulation, to realize the second broadcast singal, control
Signal and electric power transmitted simultaneously by two conducting wires, existing in the prior art more with line, the cost of effective solution
Height, and the technical problem of route poling trouble.
According to above embodiments, a kind of fire broadcast area control system and method are provided, by using letter will be broadcasted
Number, control signal and electric power be loaded onto the modes of two transfer wires, transmitted by two conducting wires, reached and only passed through
Both threads transmission can save the purpose that electric power, broadcast singal and control signal all transmit to realize saving wire rod
It saves and is routed artificial technical effect.And then solve it is existing in the prior art more with line, it is at high cost, and route poling trouble
The technical issues of.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
In addition, above-mentioned the embodiment of the present application serial number is for illustration only, do not represent the advantages or disadvantages of the embodiments.In the upper of the application
It states in embodiment, all emphasizes particularly on different fields to the description of each embodiment, there is no the part being described in detail in some embodiment, may refer to it
The associated description of his embodiment.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fire broadcast area control system, including transfer wire (110), the first loading device (121), the second load dress
Set (122), third loading device (123), loudspeaker (160) and control module (140), which is characterized in that
The transfer wire (110) is two conducting wires,
First loading device (121), second loading device (122) and the third loading device (123) are respectively
It is connect with the transfer wire (110), in which:
First loading device (121) passes through described for first control signal to be loaded onto the transfer wire (110)
Transfer wire (110) is transmitted；
Second loading device (122) passes through described for the second broadcast singal to be loaded onto the transfer wire (110)
Transfer wire (110) is transmitted；And
The third loading device (123) passes through the transfer wire for electric power to be loaded onto the transfer wire (110)
(110) it is transmitted；
The control module (140) connect with the transfer wire (110) and the loudspeaker (160) respectively, the control mould
Block (140) is used to control the loudspeaker (160) according to the first control signal and plays transfer wire (110) transmission
Second broadcast singal；And
First loading device (121) includes the first bandpass filter (124), for only allowing the first control signal logical
It crosses；
Second loading device (122) includes the first low-pass filter (125) and capacitance (126), for only allowing institute
The second broadcast singal is stated to pass through；
The third loading device (123) includes the second low-pass filter (127), for only allowing the electric power to pass through.
2. fire broadcast area control system according to claim 1, which is characterized in that further include electric power separator
(180) and power amplifier device (170), control module (140) configuration include the 4th low-pass filter (133) and blocking electricity
Hold (134), wherein
The electric power separator (180) connect with the transfer wire (110) and the control module (140) respectively, is used for
Electric power is isolated from the transfer wire (110), is powered for the control module (140), wherein
The electric power separator (180) includes third low-pass filter (132), for only allowing the electric power to pass through；
The power amplifier device (170) connect with second loading device (122), for broadcasting power lower first
Signal is enlarged into biggish second broadcast singal of power, and second broadcast singal is transmitted to second load and is filled
Set (122)；
4th low-pass filter (133) and the capacitance (134) are for filtering out the transfer wire (110) transmission
The second broadcast singal.
3. fire broadcast area control system according to claim 1, which is characterized in that the fire broadcast region control
System further includes the first modulation-demodulation device (151), and control module (140) configuration further includes the second modulation-demodulation device
(152), wherein
The control module (140) generates the 4th control signal comprising the control module (140) work state information,
Second modulation-demodulation device (152) is used to be modulated the 4th control signal, generates the 5th control signal；
First modulation-demodulation device (151) is for being modulated to the first control signal for second control signal and being transmitted to
First loading device (121), the second control signal include the letter for controlling loudspeaker (160) working condition
Breath；
Second modulation-demodulation device (152) is also used to demodulate the first control signal, generates third control letter
Number；
The control module (140) controls the working condition that signal controls the loudspeaker (160) according to the third.
4. fire broadcast area control system according to claim 3, which is characterized in that the control module (140) is also
Including the 4th loading device (129), wherein
4th loading device (129) connect with second modulation-demodulation device (152), for believing the 5th control
It number is loaded onto the transfer wire (110), and is transmitted by the transfer wire (110)；
The 5th control signal filter that first bandpass filter (124) is also used to transmit the transfer wire (110)
Out, and it is transmitted to first modulation-demodulation device (151), first modulation-demodulation device (151) is to the 5th control
Signal is demodulated, and the 6th control signal is generated, for monitoring the control module (140) working condition；
4th loading device (129) further includes third bandpass filter (130), for will only allow the first control letter
Number and it is described 5th control signal pass through, wherein by it is described 5th control signal filter out, be transmitted to the transfer wire (110)
It is transmitted, also, the first control signal that the 4th loading device (129) transmits the transfer wire (110)
It filters out, is transmitted to second modulation-demodulation device (152).
5. fire broadcast area control system according to claim 3, which is characterized in that the control module (140) is also
Including the second bandpass filter (128) and the 4th loading device (129), the fire broadcast area control system further includes the 4th
Bandpass filter (131), wherein
Second bandpass filter (128) connect with second modulation-demodulation device (152), for filtering out the transmission
The first control signal of conducting wire (110) transmission, and the first control signal that will filter out is transmitted to described second and adjusts
Demodulating equipment (152) processed,
4th loading device (129) connect with second modulation-demodulation device (152), for believing the 5th control
It number is loaded onto the transfer wire (110), and is transmitted by the transfer wire (110)；
4th bandpass filter (131) is used to filter out the 5th control signal of the transfer wire (110) transmission,
And the 5th control signal is transmitted to first modulation-demodulation device (151), first modulation-demodulation device (151) is to institute
It states the 5th control signal to be demodulated, generates the 6th control signal, the 6th control signal is for monitoring the control module
(140) working condition.
6. a kind of method of fire broadcast region control characterized by comprising
Second broadcast singal is loaded onto two conducting wires, and passes through two wire transmissions；
First control signal is loaded onto two conducting wires, and passes through two wire transmissions；And
Electric power is loaded onto two conducting wires, and passes through two wire transmissions；
Wherein, the first control signal includes the information for controlling speaker operation.
7. according to the method described in claim 6, it is characterized by further comprising: to two wire transmissions described first
Control signal is filtered, demodulates, and generates third and controls signal；
The speaker operation is controlled using third control signal；
Generate the 4th control signal；
The 4th control signal is modulated, the 5th control signal is generated；
By the 5th control signal loading to two conducting wires, and pass through two wire transmissions；
Wherein, the 4th control signal includes the information of working state of system.
8. the method according to the description of claim 7 is characterized in that further include:
Second control signal is modulated to the first control signal；
The 5th control signal of two wire transmissions is filtered, is demodulated, the 6th control signal is generated.
9. according to the method described in claim 8, it is characterized by further comprising:
First broadcast singal is enlarged into biggish second broadcast singal of power, and
Filter out second broadcast singal of two wire transmissions.
10. according to the method described in claim 9, it is characterized in that, further including
The electric power of two wire transmissions is separated, the electric power is isolated, is powered for equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252752.XA CN109981145B (en) | 2019-03-29 | 2019-03-29 | Fire-fighting broadcast area control system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910252752.XA CN109981145B (en) | 2019-03-29 | 2019-03-29 | Fire-fighting broadcast area control system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109981145A true CN109981145A (en) | 2019-07-05 |
| CN109981145B CN109981145B (en) | 2022-04-01 |
Family
ID=67081920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910252752.XA Active CN109981145B (en) | 2019-03-29 | 2019-03-29 | Fire-fighting broadcast area control system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109981145B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0879140A (en) * | 1994-08-31 | 1996-03-22 | Yamatake Honeywell Co Ltd | Two-wire communication equipment |
| CN1750420A (en) * | 2004-09-16 | 2006-03-22 | 天津市明珠电器公司 | Detecting control circuit for two-wire multiple signal transmission speaker in public broadcast system |
| CN102132332A (en) * | 2008-08-20 | 2011-07-20 | 西门子工业公司 | Arrangement and method for communicating audio and DC signals |
| CN202586991U (en) * | 2012-05-02 | 2012-12-05 | 广州市迪士普音响科技有限公司 | Two-wire type broadcasting system having forcible break-in function |
| CN203775222U (en) * | 2014-02-17 | 2014-08-13 | 白剑 | High-rise building fire protection emergency broadcasting system |
| CN207518587U (en) * | 2017-11-10 | 2018-06-19 | 北京晶科华盛科技有限公司 | A kind of two-wire system multi-party inter-speaking circuit of no audio-frequency transformer |
-
2019
- 2019-03-29 CN CN201910252752.XA patent/CN109981145B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0879140A (en) * | 1994-08-31 | 1996-03-22 | Yamatake Honeywell Co Ltd | Two-wire communication equipment |
| CN1750420A (en) * | 2004-09-16 | 2006-03-22 | 天津市明珠电器公司 | Detecting control circuit for two-wire multiple signal transmission speaker in public broadcast system |
| CN102132332A (en) * | 2008-08-20 | 2011-07-20 | 西门子工业公司 | Arrangement and method for communicating audio and DC signals |
| CN202586991U (en) * | 2012-05-02 | 2012-12-05 | 广州市迪士普音响科技有限公司 | Two-wire type broadcasting system having forcible break-in function |
| CN203775222U (en) * | 2014-02-17 | 2014-08-13 | 白剑 | High-rise building fire protection emergency broadcasting system |
| CN207518587U (en) * | 2017-11-10 | 2018-06-19 | 北京晶科华盛科技有限公司 | A kind of two-wire system multi-party inter-speaking circuit of no audio-frequency transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109981145B (en) | 2022-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69938111T2 (en) | LOCAL NETWORK OF SERIAL INTELLIGENT CELLS | |
| DE3237168C2 (en) | Telephone system for the transmission of voice and data signals | |
| US20080303343A1 (en) | Power Line Communications System and Power Line Communications Method | |
| DE112014000984T5 (en) | Dual-voltage communication | |
| JP2009535877A (en) | Assembly to enable power-over-Ethernet connection | |
| CN102801445B (en) | High performance PLC cluster system | |
| CN109981145A (en) | Fire broadcast area control system and method | |
| CN103609142A (en) | Isolator device for passing through a signal | |
| CN105049998B (en) | A kind of audio communication device | |
| CN207968712U (en) | A kind of elevator signal Transmission system | |
| CN103458227B (en) | Two-wire system transmission building visible walky-talky system | |
| CN206728239U (en) | A kind of multi-functional noise reduction communication earphone | |
| CN110049276A (en) | A kind of high-definition image transmission system based on intelligent meeting all-in-one machine | |
| CN101199134A (en) | Power line communication system and power line communication method | |
| CN201928297U (en) | Three-frequency-range signal mixing/separating device and three-frequency-range signal bidirectional amplifier | |
| CN210725186U (en) | PON intelligent home networking system based on coaxial line communication | |
| CN209120176U (en) | Track-circuit signalling cable transmits the device and equipment of non-track-circuit signalling with cable | |
| CN106060449A (en) | Information transmission measurement and control system and method suitable for video intercom system | |
| JP4333573B2 (en) | Intercom system for housing complex | |
| CN206195977U (en) | With shielding transmission equipment | |
| CN104393943A (en) | Emergency voice broadcast evacuation system | |
| CN100397891C (en) | Method for solving convergence interference using multi-nierarchy structure | |
| JP5356147B2 (en) | Optical terminal device | |
| CN204733280U (en) | Four road AHD video superimpose transmitters | |
| JPH04222194A (en) | Communication equipment between plural electronic apparatuses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |