Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of web camera linkage control device and early warning coordinated control system.This system is for the purpose of the safety safeguarding protected mechanism; utilize Internet technology, technology of Internet of things; what build in conjunction with automated control technology has the functions such as information acquisition, transmission, control, display, storage, management; can to the target needing within the scope of protected object to take precautions against, implement to report to the police, protection and the intelligent security system of safety management integral type.
The present invention adopts following technical scheme to realize:
The coordinated control system of early warning in advance of video camera Network Based, described system comprises Internet protocol camera linkage controller, web camera and other outer link equipment; Wherein, Internet protocol camera linkage controller comprises system controller, laser warning device, power supply, speech talkback device; Other outer link equipment comprise manual alarm, audible-visual annunciator, two mirror alarm detector, sensor, A/D converter.
System controller inside includes PTZ control module, voice management module, alarm control module, simultaneously on described system controller with the RS485 Data Input Interface be electrically connected with internal module and a series of A/D IO interface, control the input of early warning signal by described A/D IO interface, the audio frequency of output and speech talkback device plays, and carry out direct connection communication by described RS485 Data Input Interface and web camera, the mode of data communication is RS485 semiduplex mode.
A/D IO interface comprises analog input and output interface and number connect test interface, wherein, all comprises a hand interface and multiple self-action interface in often kind of interface; Analog input and output interface connector part comprises temperature sensor, pressure transducer, rotational speed governor, flowmeter, A/D converter, and the device that number connect test interface connects comprises audible-visual annunciator, laser warning device, two mirror alarm detector, web camera, manual alarm.
Laser warning device is with laser probe, and laser warning device exports the laser being divided into five grades by laser probe according to the early warning signal received, the performance number of laser warning device is 5 ~ 15mW.
Speech talkback device comprises audio input unit and audio output unit, and audio input unit uploads the sound signal input of outside radio voice; Audio output unit plays the sound signal of early warning sound signal and outside radio voice; The acoustic pickup interface of Internet protocol camera linkage controller is connected with audio input unit interface, audio output unit plays set recording by the voice management module Direct driver in system controller, the audio frequency input of the outside radio voice of preferential switching, the audio output interface of Internet protocol camera linkage controller is connected with audio output unit interface.
Power supply comprises supplying power for outside power supply, internally power supply and PoE combiner, and internal power supply is powered to system controller, laser warning device and speech talkback device; Supplying power for outside is the different power supply modes according to indoor, outdoor two type apolegamys, point 12VDC and 24VAC two kinds; PoE combiner is by Power-over-Ethernet, and the RJ45 interface of POE combiner is that web camera is powered.
Further: the supplying power for outside of described power supply, if indoor type, then supplying power for outside voltage is 12VDC or PoE, rated power≤10W, and power adds up to not higher than 15W; If outdoor version, then supplying power for outside voltage is 24VAC.
Further: described PTZ control module is according to the action of the control signal control PTZ The Cloud Terrace received, and described PTZ The Cloud Terrace is built in laser warning device, PTZ The Cloud Terrace coordinates the fixed point instruction location of laser warning device according to the control signal from PTZ control module.
Further: described audio output unit is chosen as determines resistance loudspeaker, is less than or equal to 3W, and by low-power audio chip Direct driver, the audio output interface of Internet protocol camera linkage controller is connected with speaker interface; Or without the need to direct loudspeaker, be reserved line 3.5 audio extension interface, the broadcast source of sound for high power loudspeakers such as outdoor water-proof sound column or bugles exports.
Further: described audio input unit is acoustic pickup; The acoustic pickup interface of Internet protocol camera linkage controller is connected with audio input interface, and the room area be applicable within 80 ㎡ is monitored.
Further: the performance number of described laser warning device is 5 ~ 15mW, described laser is red or green.
Further: described web camera comprises RS485 reverse data output interface, alerting signal input interface, alerting signal output interface, netting twine input interface, MIC interface and SPEAKER interface; The early warning signal collected is transferred to system controller by RS485 reverse data output interface and RS485 Data Input Interface according to PTZ communications protocol by web camera; Alerting signal input interface is connected with the self-action interface of in digital-quantity output interface; Alerting signal output interface is connected with the self-action interface of in digital-quantity input interface; The output interface of PoE combiner is connected with netting twine input interface; The input interface of audio input unit is connected with MIC interface; The input interface of audio output unit is connected with SPEAKER interface; Manual pull station is connected with the hand interface in digital-quantity input interface.
Further: described analog input, in safety-protection system, is defined as 12VDC input; Analog output, in safety-protection system, is defined as 12VDC and exports.
Further: described digital quantity input, refers to electric secondary circuit break-make, for the feedback of state, in safety-protection system, the input of stem grafting point type is defined as; Digital output, for the control signal that sends from controller or status signal, in safety-protection system, is defined as stem grafting point type and exports.
Further: the reverse control signal of the RS485 reverse data output interface output of described web camera, " automatically " and " manually " two kinds of actions of described Internet protocol camera linkage controller are directly triggered; Wherein, auto-action is the action that routinizes, the alarm rule preset with Internet protocol camera linkage controller and trigger alarm signals, with Peclo-P protocol mode, by RS485 communication, certain the voice broadcast service audio file that trigger network video camera linkage controller prestores; Manual activity is unconventional action, refers to that the VCA of front and back ends secondary-confirmation reports to the police, after the operator on duty of rear end platform artificially confirms that warning message is set up, then by the action of operator on duty's manual triggers laser warning device; Operator on duty's manual triggers web camera Reverse Turning Control function, action message is sent to web camera via network, network action information is transferred to Internet protocol camera linkage controller by RS485 contradirectional interface by web camera, Internet protocol camera linkage controller finally according to the content of action message, control PTZ The Cloud Terrace and laser warning action.
The present invention adopts the beneficial effect of technical scheme as above to be:
(1) numeral, the simulating signal amount of technical scheme control and management web camera provided by the present invention and other external equipment, achieve and laser warning and audible alerts are effectively combined, achieve perfect alarm linkage effect, and play warning and service function timely and effectively, thus provide monitoring efficiency, embody the design concept of " non-nocuity is warned immediately ".
(2) technical scheme provided by the present invention adopts low-power laser, laser warning makes early warning linked system possess more intuitively to human nature service, change the general layout of existing safety-protection system framework, achieve security system to the transition of security protection service system, achieve " non-nocuity is warned immediately " function.
(3) web camera linkage control device provided by the present invention and early warning linked system; according to defence field and protection place; by changing the power of laser avoidance device; prison, ammunition depot, gold reserve storehouse and the ground such as Zhongnanhai, the Military Commission of the CPC Central Committee can be used in; thus there is extensibility; applied widely, there is usability.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Design concept of the present invention is: utilize automatic PTZ tracking technique (PTZ represents The Cloud Terrace all-around mobile and camera lens zoom, Zoom control), with conventional PTZ communications protocol to Internet protocol camera linkage controller (IPCamera-Controller, be abbreviated as IPCC) export control signal, to realize the non-network bi-directional half-duplex communication of web camera (IPC) and Internet protocol camera linkage controller (IPCC).Internet protocol camera linkage controller video camera Network Based exists, and combines closely with web camera, cannot realize separately the defect of " front end warning and response " function, thus realize the partial function of web camera interlock early warning to make up web camera.
Internet protocol camera linkage controller is as the representative equipment of " immediately warning " function, and " immediately " property is the most basic requirement.Equipment itself must be " millisecond (ms) " level to the response time of event, general natural reaction speed that is basic and people to match.And the retardance of network, determining Internet protocol camera linkage controller directly should not be responded by the equipment of network and central control system, otherwise cannot realize instant action completely; Rational method directly links in front end and web camera, will simply respond action and immediately trigger, and the response action (having allowed certain time-delay) of complexity forwarded via web camera and confirm, then perform an action.
Based on above-mentioned design concept, The present invention gives a kind of early warning linked system in advance of video camera Network Based, with reference to figure 1, this system comprises: Internet protocol camera linkage controller (IPCC) and outer link equipment, and wherein IPCC part comprises IPCC system controller 1, laser warning device 2 (comprising PTZ The Cloud Terrace), power supply 3, speech talkback device 4 four part.Outer link equipment comprises web camera 5 (IPC) and manual alarm 6, audible-visual annunciator 7, two mirror alarm detector 8, sensor 9, A/D converter 10 etc.
As the necessary auxiliary device of web camera, its effect of IPCC carries out controlling to the simple digital/simulating signal amount of web camera and other auxiliary device and manage, and possesses the integrated equipment of light, sound alarm function simultaneously; It forms the control The Cloud Terrace that is similar to demoder in simulation system, or by the alarm linkage equipment that " alarm probe+alarm host machine+audible-visual annunciator " becomes one, and specially and web camera support the use.Supplementing of the necessity existed because IPC cannot realize separately " front end warning and response " function, therefore IPCC must to combine closely work with IPC, to realize the partial function of novel security protection service system.Comparatively rational method is that IPCC directly links in front end and IPC, will simply respond action and immediately trigger, and the response action (having allowed certain time-delay) of complexity is forwarded via IPC and confirms, then perform an action.
Based on complementary to the one of IPC function, the four large class functions that IPCC should possess: speech talkback, laser warning, PLC control, supplying power for outside.As shown in Figure 2, IPCC comprises IPCC system controller 1, laser warning device 2 (comprising PTZ The Cloud Terrace), power supply 3, speech talkback device 4 four part to the system architecture of IPCC.
IPCC system controller 1: the control section being IPCC, is equivalent to PLC main frame, is the core of whole IPCC.It is responsible for carrying out data communication with IPC, be responsible for controlling all kinds of A/D interface (in embodiment, A/D interface sum counts 10) simultaneously, control the PTZ action (RS485 output interface) of The Cloud Terrace, control the functions such as speech talkback device audio plays, comprise voice management module 11, alarm control module 12, PTZ control module 13 and RS485 Data Input Interface 14 and A/D input/output interface.
Voice management module 11 comprises voice control circuit (Fig. 1 does not show), drives speech talkback device 4 to play the sound signal prestored, and the preferential audio frequency input switching outside radio voice.Alarm control module 12 is for being transferred to laser warning device 2 (selection as shown in Figure 1 the 3rd digital-quantity output interface Do3 transmits) according to the early warning signal after confirming by the hand interface of digital-quantity output interface.PTZ control module 13 is for the PTZ action according to the control signal control PTZ The Cloud Terrace 5 received.The RS485 Data Input Interface 14 be positioned on controller carries out data communication for Systematical control and web camera 5, and the mode of data communication is RS485 semiduplex mode, has the advantages such as connected mode is easy, data fast response time.
IPCC system controller 1 is perform its PLC controlling functions: I/O (In/Out) management being provided with analog quantity and switching value (A/D), its Main Function is the control and the management that realize system interlink action, being the function embodiment that IPC coordinates as equipment coordinations such as two mirror alarm detector, fire smoke alarm, hygrosensors with system miscellaneous equipment, is the imbody of system intelligent.First two groups of definition are introduced below:
Ai, Ao:Ai refer to analog input, and as continually varying amounts such as temperature, pressure, rotating speed, electric currents, in industrial system, signal is generally 4 ~ 20mA or 0 ~ 5V.In safety-protection system, Ai can be defined as 12VDC input; Ao refers to analog output, i.e. Analog control signal, and as continuously adjustable actuator aperture control, frequency converter rotational speed regulation, in industrial system, signal is generally 4 ~ 20mA or 0 ~ 5V.In safety-protection system, Ao can be defined as 12VDC and export.Ai, Ao are mainly used in the access of the various kinds of equipment such as temperature, humidity, pressure, flow, rotating speed and export control, as equipment such as pressure transducer, temperature transmitter, rotational speed governors, being the node that safety-protection system and closed-circuit TV system organically combine, is the powerful guarantee that safety-protection system really realizes intelligentized control method.
Di, Do:Di refer to that digital quantity (switching value) inputs, and are exactly the feedback of electric secondary circuit break-make, some state in fact.In industrial system, signal is generally 24VDC or 220VAC control.In safety-protection system, Di can be defined as the On-off signal of stem grafting point type; Do refers to that digital quantity (switching value) exports, the control signal sent from controller or status signal.In industrial system, signal is generally 4VDC or 220VAC control.In safety-protection system, Do can be defined as the output switch parameter of stem grafting point type.Di and Do should possess 3 groups respectively, is respectively automatic mode and manual mode.
In safety-protection system, the extensive degree of switching value Di, Do application is greater than analog quantity Ai, Ao, simple trigger action can be realized, kind equipment can be inputted and warning output class equipment links with the many alarm detection in safety-protection system, building Ore-controlling Role and fire fire protection warning, realize intelligentized control method in a simple manner decoupled, therefore the automatic I/O pattern of switching value need possess 2 groups.
A/D interface, the present embodiment preferably 10, comprises analog input interface Ai1, Ai2 and analog output interface circuit Ao1, Ao2, and often group comprises a hand interface and multiple self-action interface, as shown in Figure 3; Comprise digital-quantity input interface Di1, Di2, Di3 and digital-quantity output interface Do1, Do2, Do3, often group comprises a hand interface and multiple self-action interface, as shown in Figure 4.
Wherein, first digital-quantity input interface Di1, the second digital-quantity input interface Di2, the first digital-quantity output interface Do1 and the second digital-quantity output interface Do2 are automatic mode, main connection can the external equipment of auto-action, as the input/output port, audible-visual annunciator 7, two mirror alarm detectors 8 etc. of IPC, for the auto-action of system alarm information triggers.Automatic speech prompting is triggered as the VCA in bank reports to the police, when self-help bank's video system detects that someone enters ATM setting regions, automatic triggering broadcast " you are good; you enter video monitoring regional; please note and take good care of personal information; be sure not, to pattern account number remittance, to guard against and have dust thrown into the eyes ".3rd digital-quantity input interface Di3 and the 3rd digital-quantity output interface Do3 is hand.3rd digital-quantity input interface Di3, receives only the warning message that artificially acknowledged manual alarm 6 sends, as manual pull station; 3rd digital-quantity output interface Do3, the non-nocuity caution system equipment that the artificial manual triggers of main connection is more serious, as laser avoidance device 2, illegally enters private residence as Security Personnel finds that there is people night, Non-follow control laser warning instrument, to invasion, personnel effectively drink resistance.
Analog output interface circuit is used for the output of simulating signal, i.e. Analog control signal, and as continuously adjustable actuator aperture control, frequency converter rotational speed regulation, in industrial system, signal is generally 4 ~ 20mA or 0 ~ 5V.In safety-protection system, 12VDC can be defined as and be exported.The analog output interface circuit of the present embodiment exports 0 ~ 5VDC control voltage, regulates the parameters such as external pressure, flow, revolution, generally connects A/D converter 10, for industrial control system more.
Above-mentioned analog input and output interface comprises analog input interface and analog output interface circuit.Analog input interface in the present embodiment comprises the first analog input interface Ai1 and the second analog input interface Ai2, and analog output interface circuit comprises the first analog output interface circuit Ao1 and the second analog output interface circuit Ao2.
First analog input interface Ai1 and the first analog output interface circuit Ao1 is self-action, and the auto-action being mainly system alarm information triggers.As the external analog sensor 9 of the first analog input interface Ai1, as access and the output control of the various kinds of equipment such as temperature, humidity, pressure, flow, rotating speed, being the node that safety-protection system and closed-circuit TV system organically combine, is the powerful guarantee that safety-protection system really realizes intelligentized control method.Be limited to the input-output apparatus of 12VDC, as video monitor, intrusion alarm unit, access card, night watching and intercom more.In industrial system, input signal is generally 4 ~ 20mA or 0 ~ 5V.In safety-protection system, signal is 12VDC input.The analog input interface of the present embodiment preferably receives 0 ~ 5VDC signal, as the sensor such as temperature, flow, is used for industrial control system.Hygrosensor detects that probe value is+12V, illustrates that indoor temperature is higher than setting value 25 DEG C, can automatically trigger+12V the actuating of relay by Ao1, and then open air conditioner refrigerating.It is a kind of control model of rough formula.The external A/D converter 10 of first analog output interface circuit Ao1.
Second analog input interface Ai2 and the second analog output interface circuit Ao2 is hand, manually inputs manually export with switching value for analog quantity.Comparatively accurate control model is that Ai2 detects that hygrosensor output voltage is+10.3V, the indoor temperature of its correspondence is 31 DEG C, higher than 25 DEG C of standard-required, carries out temperature adjustment by Ao2 to air-conditioning, as regulated air-conditioning voltage controling value to+8.5V, it is 25 DEG C with corresponding indoor temperature.
Laser warning device 2: laser warning device 2 includes laser probe is the important symbol that novel security protection service system is different from applicable safety crime prevention system, plays warning and indicate two to act on greatly in novel safety-protection system.Warning function, is warn the behavior of invader, belongs to security protection category; Indicative function, is point out the behavior of visitor, belongs to effort category.The input end of laser warning device 2 is connected with the 3rd digital-quantity output interface Do3, and laser warning device 2 exports the laser high light of warning function and indicative function by laser probe according to the early warning signal received.The performance number of the laser warning device in the present embodiment is preferably 5 ~ 15mW, reaches 3a level security grade, under prerequisite people's naked eyes not being caused to Burn injury, meets the brightness requirement of " non-nocuity warning ".General selection low-power laser, laser color is preferably red and green.
The complexity (Pyatyi standard, one-level be the highest) shaping according to laser shape, is exemplified below from low to high respectively:
For safety instruction, five ~ tri-grades can meet the demands; And for serving instruction, need three ~ one-level.
In some high-end applications, laser warning device 2 is built in PTZ The Cloud Terrace 5, PTZ The Cloud Terrace 5 coordinates laser warning device fixed point instruction location according to the control signal that PTZ control module 13 transfers out.If any particular demands, can consider to increase The Cloud Terrace.
Power supply 3: for centrally connected power supply and the management of safety-protection system, comprises supplying power for outside power supply 31, internally power supply 32 and PoE combiner 33, and for carrying out internally, external equipment and web camera PoE power.In order to carry out growing distance power supply and centrally connected power supply management, preferably input 220VAC.Internal power supply 32 is mainly powered to system controller 1, laser warning device 2 and speech talkback device 4.
For increasing the expanded function of the added value of IPCC, can power to IPC and other interlocking equipment, being conducive to centrally connected power supply and the management of safety-protection system, very conventional.According to field of employment, indoor, outdoor two types can be divided into.Supplying power for outside is the different power supply modes according to indoor, outdoor two type apolegamys, point 12VDC and 24VAC two kinds.
Indoor type: supplying power for outside voltage is 12VDC and PoE.If indoor type web camera is gun shaped or dome-type, operating voltage is generally 12VDC or PoE, rated power mostly≤10W; Studio broadcast loudspeaker (≤5W), two mirror alarm detector (≤3W), laser warning lamp (≤3W) etc., power adds up to not higher than 15W.The preferred 12VDC/3A power supply of the present embodiment.
Outdoor version: supplying power for outside voltage is 24VAC/4A.As outdoor version web camera mostly is fast ball-type (at the uniform velocity ball or clipping the ball), as possessed radiator fan or well heater, peak power is mostly 50 ~ 80W, and more than 90% without the need to increasing acoustic pickup, broadcast capability only need reserve audio interface and without the need to the direct feature such as power supply, the preferred 24VAC/5A power supply of the present embodiment.
PoE combiner 33 can also pass through Power-over-Ethernet, and the RJ45 interface of POE combiner is that web camera powers (namely netting twine input interface, is arranged in web camera).
Speech talkback device 4: in order to the Auto broadcast sound signal of early warning sound signal and rear end Surveillance center is played back, reminds the attention of monitored target.When such as jaywalking above, the caution sound that hummer sounds automatically " tick ~ tick ~ tick ~ ", has one to broadcast bugle loudly watchful " you are good, wear the Mr. (or Ms) of ' white jacket '; in order to your life safety, please not want jaywalk " simultaneously.What speech talkback device 4 adopted is a kind of talkback mode of two-way exchange, for making visitor and keeper carry out two-way exchange, comprises audio input unit 41 and audio output unit 42.Audio input unit 41 is for uploading the sound signal input of outside radio voice; Audio output unit 42 is for playing the sound signal of early warning sound signal and outside radio voice.
In the present embodiment, audio input unit 41 is preferably acoustic pickup, and the acoustic pickup interface of Internet protocol camera linkage controller is connected with audio input interface, and the room area be generally applicable within 80 ㎡ is monitored, the protective characteristic of safety-protection system can be met, the hommization of safety-protection system can be met again.
Audio output unit 42 preferably surely hinders loudspeaker and (is generally 3W or is less than 3W, can by low-power audio chip Direct driver), namely fire broadcast loudspeaker (mostly generally being 3W or 5W) and broadcast audio amplifier is similar to, or without the need to direct loudspeaker (outdoor loudspeaker mostly are the high power type of 70 or 110V level pressure), for reserved line3.5 audio extension interface, the broadcast source of sound for high power loudspeakers such as outdoor water-proof sound column or bugles exports.Set recording is play by voice management module 11 Direct driver in system controller 1, also the audio frequency input of outside radio voice can preferentially be switched, namely when Internet protocol camera linkage controller has intercommunication audio frequency, the built-in recording file of Internet protocol camera linkage controller Auto broadcast will be cut off, the broadcast audio of playing network video camera.(namely when external audio frequency interface has the audio frequency such as microphone MIC or C voice broadcast service SPEAKER to input, what automatic cut-out was being play carries recording, is preferential with external audio).The audio output interface of Internet protocol camera linkage controller is connected with loudspeaker (loudspeaker) (not shown) interface.
In sum, IPCC realizes four large class functions substantially:
1, speech talkback function: be divided into audio frequency input and audio frequency to export two parts.Audio frequency inputs: audio select input can divide into three major types according to the difference of environment for use: the first kind is long distance directionality detectaphone, is applicable to 5 ~ 30 meters, outdoor apart from interior use, requires as more than IP65 degree of protection, support all weather operations; Equations of The Second Kind is wide area cover type acoustic pickup, and the room area be generally applicable within 80 ㎡ is monitored; 3rd class is the directionality MIC that coverage is less than 0.5 meter, requires that audio-frequency noise effectively suppresses, and to the high-fidelity that stresses results, is particularly useful for the intercommunication type application of video conference class.Consider the characteristic of safety-protection system, practical application is based on the outdoor directed or indoor wide area of Equations of The Second Kind of the first kind; Consider safety-protection system hommization, actual use should with the outdoor orientation of the first kind in conjunction with the 3rd class speech talkback, or the indoor wide area of Equations of The Second Kind is in conjunction with the Combination application pattern of the 3rd class speech talkback.
Audio frequency exports: audio broadcasting also divides into indoor, outdoor two large classes according to the difference of environment for use: a class is indoor type, for determining resistance audio amplifier, be generally 3W or be less than 3W, can by low-power audio chip Direct driver, nearly power is similar to indoor fire-fighting loudspeaker (mostly generally being 3W or 5W); Equations of The Second Kind is outdoor version, and this type of is without the need to direct loudspeaker (outdoor loudspeaker mostly are the high power type of 70 or 110V level pressure), and be reserved line 3.5 audio extension interface, the broadcast source of sound for high power loudspeakers such as outdoor water-proof sound column or bugles exports.
2, laser warning function: this is that IPCC must the function of tool, is the important symbol that novel security protection service system is different from applicable safety crime prevention system.Laser warning function is seldom used in existing safety-protection system, plays warning and indicate two to act on greatly in novel safety-protection system.Herein it is emphasised that " the instant early warning of non-nocuity " concept, therefore fully take into account the self-security of system corresponding device.Z136.1 (2000) laser safety standard of American National Standards Institute (ANSI) is divided into four safe classes laser product, and regulation is nocuity grade more than 5mV.China there is no this type of clear and definite regulation, can suitably relax to 5 ~ 15mW, reaches 3a level security grade, under prerequisite people's naked eyes not being caused to Burn injury, meets the brightness requirement of " non-nocuity warning ".
3, supplying power for outside: for increasing the expanded function of the added value of IPCC, can power, be conducive to centrally connected power supply and the management of safety-protection system to IPC and other interlocking equipment is very conventional.According to field of employment, indoor, outdoor two types can be divided into.
4, PLC controlling functions: for the I/O (In/Out) of analog quantity and switching value (A/D) manages, its Main Function is the control and the management that realize system interlink action, being the function embodiment that IPC coordinates as equipment coordinations such as two mirror alarm detector, fire smoke alarm, hygrosensors with system miscellaneous equipment, is the imbody of system intelligent.
Data Input Interface RS485 (in) agreement of IPCC mainly adopts RS485 communication comparatively common in security protection industry to control, as SamSung-E, Pelco-P etc.Internet protocol camera linkage controller (IPCC) data communication method is RS485 half-duplex, namely RS485 input is RS485 half-duplex with the connection mode of web camera (IPC), relative to network schemer (as TCP/IP or udp protocol), have that connected mode is easy, data fast response time specific.
The Data Input Interface RS485 (in) of IPCC is connected with the reverse data output interface RS485 (Txd ±) of IPC, wherein, IPC possesses RS485 Reverse Turning Control function, can by reverse data output interface RS485 (Txd ±) with conventional PTZ communications protocol (as Pelco-P, Pelco-D, Samsung-T, Samsung-E etc., possess good maturity and opening) export control signal to Internet protocol camera linkage controller (IPCC), to realize the non-network bi-directional half-duplex communication of web camera and Internet protocol camera linkage controller.If any particular demands, can consider to increase The Cloud Terrace, to coordinate the fixed point instruction location of laser warning device.
The reverse control signal that the reverse data output interface RS485 (Txd ±) of IPC exports, directly can trigger " automatically " and " manually " two kinds of actions of IPCC.Wherein, auto-action is the action that routinizes, as voice Auto broadcast.The alarm rule (as certain VCA pattern) preset with IPCC and trigger alarm signals, with Peclo-P protocol mode, by RS485 communication, trigger certain the voice broadcast service audio file that IPCC prestores.
Manual activity in the present embodiment is unconventional action, refers to that the VCA of front and back ends secondary-confirmation reports to the police, after the operator on duty of rear end platform artificially confirms that warning message is set up, then by the action of operator on duty manual triggers IPCC laser warning device.Operator on duty manual triggers IPC Reverse Turning Control function, action message is sent to IPC via network, network action information is transferred to IPCC by RS485 Reverse Turning Control interface by IPC, IPCC, finally according to the content of action message, controls The Cloud Terrace and laser warning action (as call cradle head preset positions and open laser warning device).
Web camera 5 (IPC) web camera comprises RS485 reverse data output interface (RS485 (TxD ±) see in figure), alerting signal input interface (Alarn In), alerting signal output interface (Alarn Out), netting twine input interface (RJ45), MIC interface and SPEAKER interface.Wherein, web camera IPC passes through RS485 reverse data output interface (TxD ±) and RS485 Data Input Interface RS485 (In), according to PTZ communications protocol, the early warning signal collected is transferred to system controller.PTZ communications protocol comprises Pelco-P, Pelco-D, Samsung-T, Samsung-E etc., possesses good maturity and opening, to realize the non-network bi-directional half-duplex communication of IPC and IPCC.Alerting signal input interface (Alarn In) is connected with the first digital-quantity output interface Do1.The early warning signal information (as two mirror alarm detector) of the alarm control module of PLC is successively by the first digital-quantity output interface Do1 of IPCC and the warning input interface (Alarnin) of IPC, be transferred to web camera, confirm through web camera.Alerting signal output interface is connected with the first digital-quantity input interface Di1.The early warning signal information (as dynamic detection warning message or VCA warning message) of IPC will be transferred to the alarm control module of IPCC by warning output interface (Alarn out) and the first digital-quantity input interface Di1 successively.
The output interface of PoE combiner is connected with netting twine input interface (RJ45), PoE combiner successively by PoE combiner output interface and netting twine input interface RJ45 for IPC provides PoE to power.
The input interface of audio input unit 41 is connected with MIC interface, and the output interface of audio output unit 42 is connected with SPEAKER interface, and manual pull station 5 is connected with the 3rd digital-quantity input interface Di3.
In addition, it should be noted that, IPCC as the necessary complement equipment of IPC, can directly and IPC link.In video security monitoring and closed-circuit TV system application, the quantity of IPCC should be equal to IPC quantity, and is one-to-one relationship; Or the quantity in the corresponding IPC defence area of IPCC quantity, the quantity in its usage quantity and IPCC defence area is one-to-one relationship.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.Those of ordinary skill in the art should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.