CN1852426A - Remote wireless realtime multi-media-messaging service security system - Google Patents
Remote wireless realtime multi-media-messaging service security system Download PDFInfo
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Abstract
Based on ZIGBEE protocol/WLAN wireless network protocol, combining MMS service and GPRS/CDMA1X/3G mobile network, the invention is related to remote wireless safety protection system with colorful signal message in real time. The system is composed of three modules mainly: central control module, image sound acquisition module, and sensing module. Communication in ZIGBEE protocol/WLAN wireless network protocol is adopted between modules. An embedded typed send receive system in colorful signal message is built in central control module. The central control module is in charge of processing images and sounds transmitted from image sound acquisition module to colorful signal message, which through mobile communication network is sent to user's handset. The invention possesses functions of making alarm in real time, receiving alarm, viewing image and hearing sound from site at any time and ant place. Features are: distributed structure, and flexible network structure.
Description
Technical field
The present invention relates to that a kind of security protection that is applicable to multiple occasions such as family and enterprises and institutions is used, by wireless sensor network technology Zigbee as networking protocol and based on the safety-protection system of multimedia message technology.
Background technology
Safety is that enterprises and institutions and life staying idle at home ordinary production are lived originally.Monitoring safety-protection system in the market can be divided into two big classes: a kind of is centralized monitoring system, and its monitoring mode is that all monitoring images, alarm signal are aggregated into the centralized monitor machine room, by the monitoring in 24 hours of special attending personnel.Another is unmanned automatic alarm system, and its monitoring mode adopts unattended duty, reports to the police by the telephone automatic dialing or the mode remote auto of sending short messages.Centralized monitoring system is all installed in a lot of enterprises and institutions and residential quarters, and is equipped with security personnel's patrol.And unmanned automatic alarm system mainly is installed in the environment that needs unattended duty and need have a style of one's own, family for example, warehouse, small-sized shop or the like.But under many circumstances because the present intrinsic defective of safety-protection system, and causes such as property security personnel's sense of responsibility, accidental omission, a lot of opportunities of offender still given.
Centralized monitoring system needs special messenger's post in 24 hours, and remains a kind of warning system afterwards under most of situation.Can not under emergency case, effectively handle in real time.Often be just to remove the on-the-spot Video Document of leafing through after burglar takes place.Can not play the effect of preventing crime then and there.
Existing unmanned automatic alarm system is general to adopt infrared, door magnetic, cigarette sense etc. as antitheft/safe acquisition sensor, with phone, the mobile module transmission means as warning information.All there is the false alarm phenomenon in all the sensors at present, owing to be subjected to the restriction of means of communication, the alarm signal of unmanned automatic alarm system all is to transmit with the form of literal (note), sound (phone), owing to can't see on-the-spot image, therefore is difficult to distinguish the false alarm phenomenon.Cause this system to be difficult to be widely used.
Summary of the invention
At the defective that exists in the above-mentioned prior art, technical problem to be solved by this invention provides a kind of energy Realtime Alerts, receives a crime report, monitors the remote wireless realtime multi-media-messaging service security system of monitoring image scene sound whenever and wherever possible whenever and wherever possible.
In order to solve the problems of the technologies described above, single network configuration of a kind of remote wireless realtime multi-media-messaging service security system provided by the invention comprises:
One mobile communications network is used for the transmission of real-time multimedia message;
Wireless terminals such as mobile phone that can sending and receiving multimedia message, PDA, the wireless connections mobile communications network is used for receiving a crime report of user whenever and wherever possible;
It is characterized in that, also comprise:
One central control module is used for the control and treatment of safety-protection system, is made up of with the image storage unit that is connected described central control processor unit, Wireless Networking unit, identification unit, embedded multimedia message Transmit-Receive Unit the central control processor unit;
Described Wireless Networking unit is used to form WLAN, adopt 802.15.4/ZIGBEE (short distance wireless sensor networking protocol), WLAN (protocol of wireless local area network of 802.11 protocol suites definition), bluetooth short-range wireless communication protocol such as (Bluetooth) as the connected network communication means
Described identification unit is used for wireless connections user radio key, the function that has decode users key, identification user identity and deploy troops on garrison duty/withdraw a garrison; The wireless connections mode can adopt digital transmission module/ZIGBEE module/RFID/ bluetooth/WLAN (802.11 protocol suite)/modes such as infrared remote control, if employing digital transmission module, the encrypt/decrypt mode of user identity password adopt rolling code mode/fixedly encoding and decoding/study coding mode; If adopt ZIGEBEE module encrypt/manner of decryption then utilize the built-in safety function of ZIGBEE protocol stack.Provide wired connected mode for user's telnet, realization and wireless connections mode identical functions simultaneously; As Ethernet network interface or RS422/485 serial ports, provide that the user lands, identification, Long-distance Control or with other device swap datas.
Described embedded multimedia message Transmit-Receive Unit is used to connect mobile communications network, be that embedded MMS (multimedia message) Client end protocol stack and wap protocol stack/at GRPS/CDMA1X/3G (the 3G (Third Generation) Moblie standard of ITU, 3GPP definition) characteristic have been done the tcp protocol stack optimized, may operate at the radio terminal system on GPRS/CDMA1X or the following 3G network;
At least one defence area connects described central control module, and described defence area is provided with at least one sensor assembly and at least one video/audio acquisition module;
Sensor assembly, form with the Wireless Networking unit that is connected described sensor unit by sensor unit, described sensor unit is used to produce warning information, and described Wireless Networking unit is used for carrying out wireless connections through the wireless data sending unit of WLAN (wireless local area network) and described central control module; Described transducer can adopt various security sensors such as infrared, door magnetic, cigarette sense or the like; Described Wireless Networking unit adopts the wireless data transmission module work in ISM band (need not apply for use radio band) and DEU data encryption unit (rolling code coding/regular coding/study yard), also can adopt ZIGBEE module or bluetooth module; The circuit unit of the circuit unit that described ZIGBEE module is made up of the processor of RF Transceiver that meets the ZIGBEE/802.15.4 standard and built-in ZIGBEE/802.15.4 agreement or the SOC (System-on-Chip) of both combinations; Described wireless data sending unit is to adopt PLL tuned, the UHF transmitter/transceiver of OOK/FSK/ASKmodulation;
The video/audio acquisition module, form with the Wireless Networking unit that is connected described video/audio collecting unit by the video/audio collecting unit, described video/audio collecting unit is used for collection, the A/D conversion and the compression of video/audio signal, and described Wireless Networking unit is used for carrying out wireless connections through the Wireless Networking unit of WLAN and described central control module, transducer; Described video/audio collecting unit can adopt image compression standards such as JPEG/JPEG-M/MPEG4/H.263/H.264/WM9, AAC, AC3, MPEG audio, MP3, WindowsMedia
Audio, RealAudio
TM8 standards such as audio compression such as grade.And can transmit the consecutive image voice signal, can adopt external power source or powered battery mode.
Described Wireless Networking unit can adopt wireless sensor network technology ZIGBEE networking protocol, and described Wireless Networking unit also can adopt wireless protocols such as WLAN, bluetooth;
One user radio key is used for the withdrawing a garrison/deploy troops on garrison duty of user, gate inhibition and identification;
Central control module is by the warning information of Wireless Networking unit receiving sensor module, judge the defence area that alarm occurs, the video/audio acquisition module in corresponding defence area links, the video/audio signal that gather, the A/D conversion is relevant with compression, transfer to central control module through WLAN, the warning information of converting multimedia note (MMS) through mobile communications network, sends multimedia message by the embedded multimedia message Transmit-Receive Unit of central control module to designated mobile phone.Also can dial user mobile phone by the control mobile module reports to the police.
In order further to solve the problems of the technologies described above, the multiple cascading networks structure of a kind of remote wireless realtime multi-media-messaging service security system provided by the invention, comprise the upper and lower network: lower floor's network is made up of at least one single network, and each single network has a style of one's own, all can independent accessing mobile communication network; Upper layer network is made of wireless relay unit and backstage controller; The central control module of each described single network (unit) is connected with the described backstage controller of last layer network by described wireless relay unit; Whole network is a kind of structure of centralized monitoring system, and the single network of lower floor is independently unmanned one by one automatic alarm system, alarm signal, alarm sound image both can directly pass on the user mobile phone through mobile communications network, also can issue the backstage controller, pass to the centralized monitor chamber and handle by special attending personnel by wireless relay unit.
The described central control module that is used for the multiple cascading networks structure also is provided with the wired interface unit that comprises fixed-line telephone network telephony interface and Ethernet network interface.
In order further to solve the problems of the technologies described above the workflow of a kind of remote wireless realtime multi-media-messaging service security system provided by the invention:
1) user uses wireless key that system is set and enters the state of setting up defences;
2) sensor can be utilized the address in this defence area of secret key encryption after invasion, sends to central control module by the Wireless Networking circuit then;
3) central processing unit of central control module is safeguarded the warning information tabulation in different defence areas, the warning information tabulation comprises the ID in different defence areas, the IP address or the ZIGBEE MAC Address of image, sound collection module in this list net, the current state in each defence area, acquisition parameters, polling interval or the like information; After receiving the alarm signal of transducer, central control module is resolved key earlier, obtain alarming anti-regional address, thereby judge it is the transducer warning (transducer in each defence area all has unique key as identity recognition number) in which defence area, the state that corresponding defence area in the warning information tabulation is set then is an alarm status; And by the video/audio acquisition module transmission image transmission token of alarm inverted sequence in proper order in defence area to corresponding defence area; The token send mode is such, once only sends to a video/audio acquisition module, wait the image of receiving this module, voice signal after, send to the next one again;
Just the same time only allows to obtain module transmission image, the voice signal of token; Token is the sending order of control chart as the sound collection module, is not the order that control is taken, and according to the warning information tabulation, a plurality of video/audio acquisition modules can be worked simultaneously;
4) be in polling status under the video/audio acquisition module normal condition in different defence areas, so-called poll is exactly just to remove to visit central control module at regular intervals, and during the polling interval, system enters the power saving resting state, after the poll time comes, wake up automatically by timer and to carry out polling operation; Central control module goes to discern the member of present networks according to the address in the warning information tabulation, and allows it to read the warning information tabulation, and the video/audio acquisition module reads and judges whether that this defence area alarms after the warning information tabulation, just continues poll with nowhere to turn to warning; Poll-interval is by the polling interval parameter setting in the warning information tabulation;
5) if the video/audio acquisition module is found this defence area to be alarmed, just wake image unit up, the floor picture is clapped three continuously then, and shooting interval can be set by the acquisition parameters in the warning information tabulation; Judge then whether the transmission token is effective, effectively just transmits the invalid wait token status that just enters immediately; If alarm in other defence areas, only activate image unit, the Wireless Networking unit then enters the wait accepting state and no longer carries out polling operation, intercepts next step instruction of central control module; Send the releasing alarm command up to central control module, the video/audio acquisition module enters normal polling status again;
6) after image, voice signal passed to central control module, central control module transmitted the video/audio acquisition module that token is issued next alarm defence area to image; The image that receives, sound are made multimedia message and are sent on the user mobile phone; Be stored in simultaneously on hard disk/CF card/nonvolatile storages such as SD card; Perhaps pass to the wireless relay module, pass to the backstage controller by it and handle, and according to alarm situation or the instruction of user's note, decision is to continue to gather sound, image information or cancel alarm.
Utilize remote wireless realtime multi-media-messaging service security system of the present invention, because the present invention has adopted above-mentioned technical scheme, compared with the prior art, the present invention has following advantage:
1) owing to use the multimedia message mobile phone as receiving a crime report terminal, the user can receive alarm signal in any at any time place in real time, sees and hears image that alarm is on-the-spot and sound and be not subjected to spatiotemporal restriction;
2) adopt the transmission means of multimedia message as alerting image sound, with the embedded multimedia message transceiver terminal of built-in MMS CLIENT protocol stack as alarm controller, compare as the mode of MMS gateway with traditional employing PC, the multimedia message transmitting-receiving of embedded multimedia message transceiver terminal has the real-time of height.Portable, hide easily and install;
3) break through conventional thought, single image, especially single width small-sized image because data volume is little, can be equal to the sensor signal transmission equally after overcompression.
In the present invention, the alerting image with the multimedia message transmission all is the image of small-signal amount.So adopt the communication protocol of wireless senser networking protocol ZIGBEE/802.15.4 in the present invention as image, sound collection module and central control module.Because the power saving of ZIGBEE/802.15.4 agreement design, so image, sound collection module can use battery to work long hours.Owing to use powered battery, wireless signal transmission, image, sound collection unit are installed and need not be connected up, and can be placed on any place that needs monitoring.And do not need frequently to change battery.
Whole system adopts modularized design, adopts short-range wireless communication protocol networkings such as ZIGBEE, bluetooth or WLAN between the disparate modules.Wireless networking, networking mode are flexible and changeable, applicable to different occasions.
Overcome the disadvantage of the Realtime Alerts scarce capacity of existing centralized alarm system, and unmanned automatic alarm system false alarm rate height, alarm signal shortcoming intuitively not.
The present invention breaks through the mentality of designing of traditional safety-protection system, and ZIGBEE is applied in the image delivering system the sensor wireless network technology, and the multimedia message technology is applied to safety-security area.Solved existing safety-protection system false alarm rate height, the instant alarming weak effect, alarm signal is disadvantage intuitively not.Rely on mobile communications network, realized that unattended duty, remote live roaming receive a crime report, immediate observation is alarmed the novel security alarm system of on-the-spot audiovideo.This system basic composition unit adopts modularized design, and its system group network mode is flexible and changeable, and simple installation can be formed multiple monitor network according to actual needs, is a kind of safety-protection system of the mobile communication technology that is closely connected.Along with the arrival of 3G (Third Generation) Moblie network (3G), the present invention will have application prospect widely.
Description of drawings
Fig. 1 is single network configuration block diagram in the embodiment of the invention;
Fig. 2 is a multiple cascading networks topological structure block diagram in the embodiment of the invention;
Fig. 3 is the integrated superhet transceiver circuit of MAX7032 monolithic figure in the embodiment of the invention;
Fig. 4 is a ZIGBEE modular circuit block diagram in the embodiment of the invention;
Fig. 5 is the circuit structure block diagram of video/audio acquisition module in the embodiment of the invention;
Fig. 6 is the circuit structure block diagram of central control module in the embodiment of the invention;
Fig. 7 is the ZIGBEE agreement and the WLAN protocol bridge circuit structure block diagram of wireless relay unit in the embodiment of the invention;
Fig. 8 is the circuit structure block diagram of backstage controller in the embodiment of the invention.
Embodiment
Below in conjunction with description of drawings embodiments of the invention are described in further detail, but present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof all should be listed protection scope of the present invention in.
The remote wireless realtime multi-media-messaging service security system of the embodiment of the invention is the short-distance wireless networking technology and the combining of mobile communication technology.In image, sound signal collecting host-host protocol, use wireless sensor network technology ZIGBEE, and the multimedia message technology is applied to safety-security area.
The networking topological structure of the remote wireless realtime multi-media-messaging service security system of the embodiment of the invention comprises single network configuration and based on the multiple cascading networks topological structure of single network; Concrete structure is described as follows:
Referring to shown in Figure 1, in single network configuration of remote wireless realtime multi-media-messaging service security system, comprise a central control module, with user radio key, at least one sensor assembly and at least one video/audio acquisition module of described central control module wireless connections, the embedded multimedia message Transmit-Receive Unit (not shown) of described central control module is through wireless terminals such as mobile communications network wireless connections mobile phone, PDA; Described safety-protection system can be divided into several defence areas as required, be provided with several transducers and several video/audio acquisition modules in each defence area, when system is in when setting up defences state, after transducer is triggered, central control module judges that alarm appears in which defence area, distinguish the alarm classification, the respective image sound collection module in the corresponding defence area of linking simultaneously, perhaps by sensor assembly directly (wired or wireless) start the respective image sound collection module in this defence area.The video/audio signal passes to central control module by ZIGBEE network or wlan network, and central control module is made the video/audio signal on the mobile phone that multimedia message is dealt into user's appointment.If adopt the 802.15.4/ZIGBEE agreement as the networking means, video/audio acquisition module and transducer can use common alkalescence battery operated.
Referring to shown in Figure 2, the multiple cascading networks structure of safety-protection system is that a plurality of single network configurations form by wireless relay unit (the video/audio acquisition module in single network also can be used as wireless relay unit and uses), backstage controller cascade.This topological structure is divided into two levels.Lower floor is made up of a plurality of single network configurations, and each single network has a style of one's own, all can independent accessing mobile communication network.Upper layer network is made of wireless relay unit and backstage controller.The central control module of each single network (unit) links by wireless relay unit and last layer network.Whole network is a kind of structure of centralized monitoring system, and the single network of lower floor is independently unmanned one by one automatic alarm system, alarm signal, alarm sound image both can directly pass on the user mobile phone through mobile communications network, also can issue the backstage controller, pass to the centralized monitor chamber and handle by special attending personnel by wireless relay unit.
Form a defence area by sensor assembly and video/audio acquisition module, adopt ZIGBEE/WLAN agreement and central control module networking between the different defence areas.Different central control modules is connected to form the last layer network by wireless relay unit and backstage controller.Wireless relay unit is used for the store-and-forward node of big data quantity, gathers the storage transponder as data; Both can be used in single network topology structure, also can be used in the multitiered network topological structure relaying, bridge, gateway as the network of different levels.When transducer is triggered, image scene is taken in the video/audio module interlock in corresponding defence area, pass to corresponding central control module (unit), convert multimedia message to by central control module (unit) and issue the mobile phone of appointment or issue the backstage controller by wireless relay unit through mobile communications network.So no matter when and where, just see the video/audio information that alarm is on-the-spot in half a minute, stop the generation that mistake is alarmed phenomenon substantially.
Single network configuration of the remote wireless realtime multi-media-messaging service security system that the embodiment of the invention provides comprises:
One mobile communications network is used for the transmission of real-time multimedia message;
Wireless terminals such as mobile phone that can sending and receiving multimedia message, PDA, the wireless connections mobile communications network is used for receiving a crime report of user whenever and wherever possible;
Also comprise: a central control module, sensor assembly, video/audio acquisition module and user radio key, concrete structure is described as follows:
Central control module is used for the control and treatment of safety-protection system, is made up of with the image storage unit that is connected described central control processor unit, Wireless Networking unit, identification unit, embedded multimedia message receive-transmit system unit the central control processor unit; Described Wireless Networking unit is used to form WLAN, adopt 802.15.4/ZIGBEE agreement or WLAN agreement as the connected network communication means, described embedded multimedia message receive-transmit system unit is used to connect mobile communications network, be that embedded MMS (multimedia message) Client end protocol stack and wap protocol stack/at GRPS/CDMA1X/3G (the 3G (Third Generation) Moblie standard of ITU, 3GPP definition) characteristic have been done the tcp protocol stack optimized, may operate at the radio terminal system on GPRS/CDMA1X or the following 3G network.Central control module also is provided with wired interface unit, and wired interface unit comprises fixed-line telephone network telephony interface subelement and Ethernet interface subelement.
Described embedded multimedia message Transmit-Receive Unit can adopt three kinds of structures:
1) general-purpose built-in type system+multimedia message cell phone mainboard;
2) general-purpose built-in type system+multimedia message mobile module;
3) embedded system+mobile module of operation MMS (multi-media SMS) agreement and wap protocol/optimization Transmission Control Protocol, or meeting the RF front end+baseband processor of GSM (global system for mobile communications)/CDMA1X/3G normalized definition, MMS (Microsoft Media Server) Protocol and wap protocol/optimization Transmission Control Protocol operates on the baseband processor.
General-purpose built-in type system definition is in this manual: any embedded system that does not comprise the MMS (Microsoft Media Server) Protocol stack; Multimedia message module is defined as in this manual: the mobile module (GSM/CDMA1X/3G) that comprises the sending and receiving multimedia message function; The multimedia message cell phone mainboard is defined as in this manual: the mobile phone of function of multimedia message or the mobile phone main circuit board (GSM/CDMA1X/3G) of customization are arranged.
Referring to shown in Figure 6, central control module is made up of central control processor element circuit, identification element circuit, ZIGBEE modular unit circuit, image storage unit, WLAN network interface card, MMS (multimedia message) gsm module.The wireless data sending unit of identification element circuit is identical with the circuit in the sensor assembly, different is to have increased study sign indicating number decoding circuit, that use is decoding chip RT1627 with sensor die block encryption IC eV1527 correspondence, RT1627 has a study sign indicating number pin, RT1627 enters learning process in the time of low level, and so-called learning process is exactly to extract the key of any sensor assembly of communicating by letter with it between the learning period and be stored in the inner EERPOM.After learning process finished, RT1627 was according to the different sensor assembly of storing between the learning period of key identification.Here it is study coding mode the encryption and decryption mode.The central control processor element circuit is by ATMEL processor A T91RM9200, FLASH MEMORY, SDRAM, and Ethernet phy interface chip PLX971, local bus/PCI (a kind of industrial computer bus standard) bus Bridge chip PCI9054 forms, wherein AT91RM9200 through local bus respectively with FLASH MEMORY, SDRAM, the TrueIDE interface circuit is connected with PCI9054, AT91RM9200 is connected with the wireless data sending element circuit through the GPIO interface, AT91RM9200 is connected with RJ45 through PLX971, AT91RM9200 links to each other with the MMS gsm module by Full Modem interface, AT91RM9200 connects the ZIGBEE module by common serial ports, True ide interface circuit connects CF card (COMPACT FLASH card), and PCI9054 connects wireless network card through PCI bus; AT91RM9200 does not have pci bus, but two USB2.0 HOST interfaces are arranged.When using the wireless network card of MINI pci interface, just need go to expand pci bus with the pci bus bridging chip; The wireless network card interface circuit has two kinds of structures, if use the network interface card of USB interface then can directly link to each other with the USB interface of AT91RM9200, for the network interface card of MINIPCI interface, then need by linking to each other with the LOCAL BUS of AT91RM9200 behind the bridge joint of PCI9054.
The scheme of the GT60+MC13192 of FREESCALE company is adopted in the realization of ZIGBEE modular unit circuit, the physical circuit block diagram is referring to shown in Figure 4, MC13192 is the RF front end IC that meets the 802.15.4 standard, and GT60 is 8 single-chip microcomputers of a low-power consumption, operation ZIGBEE protocol stack on it; GT60 links to each other with MC13192 by spi bus, is connected with sensor unit circuitry by a GPIO, and the antenna of ZIGBEE modular circuit connects MC13192 through duplexer (AntennaSwitch), balun (BALUN); The ZIGBEE protocol specification stipulates that each ZIGBEE RF front end IC comprises a unique MAC Address of 32, does not therefore need extra coding encrypting circuit as identification.Image storage unit is CF card, the hard-disk interface circuit with the NAND gate circuit simulation TRUE IDE pattern of the LOCAL BUS bus of AT91RM9200 and 74LV14 series.
Sensor assembly, form with the Wireless Networking unit that is connected described sensor unit by sensor unit, described sensor unit is used to produce warning information, and described Wireless Networking unit is used for being connected with the wireless data sending unit wireless of described central control module through WLAN (wireless local area network); Described transducer can adopt various security sensors such as infrared, door magnetic, cigarette sense or the like; Described Wireless Networking unit adopts wireless data transmission module and the DEU data encryption unit (rolling code coding/regular coding/study sign indicating number) that works in ISM band, also can adopt the ZIGBEE module; The circuit unit of the circuit unit that described ZIGBEE module is made up of the processor of RF Transceiver (transceiver) that meets the ZIGBEE/802.15.4 standard and built-in ZIGBEE/802.15.4 agreement or the SOC (System-on-Chip) of both combinations; Described wireless data transmission module is to adopt PLL tuned, the UHFtransmitter/transceiver of OOK/FSK/ASK modulation;
Transducer adopts the passive type pyroelectric infrared sensor, the infrared ray of the special wavelength 10 μ m that the reception human body distributes, pinch ear lens gathering infrared ray by phenanthrene and between two thermistors, produce voltage difference, export digital signal level to the Wireless Networking unit by the A/D sample circuit.The Wireless Networking unit adopts the structure of the wireless data transmission module of coding encrypting circuit and wireless data sending circuit, and key adopts study coding mode IC eV1527, and eV1527 has 1,000,000 kinds of coded systems.Key is the identity code of sensor assembly, is unique in system, is used for discerning which defence area by central control module and produces alarm.The wireless data sending circuit adopts the MAX7032 of single chip integrated ASK/OOK/FSK superhet transceiver MAXIM to realize that MAX7032 is that monolithic is integrated, only needs peripheral components seldom just can realize super-heterodyne transceiver, and physical circuit is referring to shown in Figure 3; In an embodiment of the present invention, also can adopt of the wireless connections of ZIGBEE module as described Wireless Networking unit, the ZIGBEE protocol specification stipulates that each ZIGBEE RF front end IC comprises a unique MAC Address of 32, does not therefore need extra coding encrypting circuit as identification.The Wireless Networking unit is in sleep state at ordinary times, and transducer is triggered the back level signal of exporting as wake-up signal, outputting alarm signal after the Wireless Networking unit is activated.The transducer of described sensor assembly also can adopt the glass fragmentation to examine a tin transducer, Smoke Sensor, door status sensor etc. in embodiments of the present invention.Transfer of data adopts key to add Wireless transmission mode.Wireless transmission method adopts wireless data transmission module, and rolling code coding/study coding mode/regular coding is adopted in secret key encryption.Adopt the 802.15.4/ZIGBEE module as wireless transmission, data encryption means in the high-end applications field.After transducer is triggered, take recording with video/audio collecting unit direct communication interlock, perhaps communicate by letter with central control module, take recording by the central control module control chart as the sound collection module.
The video/audio acquisition module, form with the Wireless Networking unit that is connected described video/audio collecting unit by the video/audio collecting unit, described video/audio collecting unit is used for collection, A/D conversion and the compression of video/audio signal, and described Wireless Networking unit is used for the wireless connections through the wireless data sending unit of WLAN (wireless local area network) and described central control module; If the video/audio acquisition module has comprised the circuit of sensor unit, so just become transducer, video/audio is gathered a body unit.Be applicable to the occasion that some does not need transducer to separate with the video/audio acquisition function.Described video/audio collecting unit adopts the image compression standard of JPEG, uses the battery supply power mode, when requiring continuous images signal, also can adopt image compression standards such as JPEG/MPEG4/H.263/H.264/WM9, uses the external power source mode; Described Wireless Networking unit adopts wireless sensor network technology ZIGBEE networking protocol, and described Wireless Networking unit also can adopt 802.11 protocol suite networking protocols.Certainly whether no matter battery-powered module can be with these two kinds of WAPs.
Referring to shown in Figure 5, the circuit of video/audio acquisition module is made up of the A/D sampled digital coding circuit of central control processor element circuit, camera, video/audio signal, the compressed encoding circuit and the Wireless Networking element circuit of audio frequency and video digital signal.The cmos image sensor monolithic approach of OmniVision is adopted in the A/D sampling of audio frequency and video: OV7141, OV7141 single-chip finish the A/D sampling of analog video signal and the coding of digital video signal, directly export the CCIR656 digital video signal of 8 bits; Image compression chip adopts AIT800G; The central control processor element circuit is by ATMEL processor A T91RM9200, FLASH MEMORY, SDRAM, and Ethernet phy interface chip PLX971, localbus/PCI bus Bridge chip PCI9054 forms, ATMEL processor A T91RM9200 through local bus respectively with FLASH MEMORY, SDRAM, image compression chip AIT800G, True ide interface circuit is connected with PCI9054, ATMEL processor A T91RM9200 is connected with RJ45 through PLX271, ATMEL processor A T91RM9200 connects the ZIGBEE module by common serial ports, image compression chip AIT800G connects camera through the OV7141 single-chip, the TrueIDE interface circuit connects the CF card, and PCI9054 connects wireless network card through PCI bus; AT91RM9200 does not have pci bus, but two USB2.0 HOST interfaces are arranged.When using the wireless network card of MINI pci interface, just need go to expand pci bus with the pci bus bridging chip.The Wireless Networking unit comprises ZIGBEE modular circuit and 802.11a/b/g network interface card.The circuit of ZIGBEE module is identical with circuit in the sensor assembly, is connected with AT91RM9200 by standard RS232 serial ports.The wireless network card interface circuit has two kinds of structures, if use the network interface card of USB interface then can directly link to each other with the USB interface of AT91RM9200, for the network interface card of MINIPCI interface, then need by linking to each other with the LOCAL BUS of AT91RM9200 behind the bridge joint of PCI9054.The circuit of digital transmission module, sensor unit circuitry are as optional part, image, sound collection module can directly be linked by the sensor assembly in same defence area, also image, the sound collection module that can go to link corresponding defence area according to the alarm signal of transducer by central control module.Processor A T91RM9200 control chart image-position sensor is taken, and image compression chip is finished compression, by ZIGBEE module or wireless network card image is passed to central controller, also can store image onboard in FLASH MEMORY or the CF card.The CF card interface circuit does not need to increase extra control chip with the LOCAL BUS simulation of AT91RM9200.If the video/audio acquisition module adds sensor unit circuitry again, just become the module that a collection sensing is taken the recording one.Be applicable to the occasion of separating that does not need sensor-triggered function and video/audio acquisition function.According to the specific requirement and the employed WAP of security protection environment, the occasion that only needs single image is adopted the JPEG compression standard.The occasion that needs consecutive image is adopted JPEG/MPEG4/H.263/H.264/WM9/M-JPEG compressed format.When needs were battery powered, module adopted 802.15.4/ZIGBEE as Wireless Networking communication protocol.Supply power mode is not being done requirement, and requiring the occasion of consecutive image, can adopt 802.11 protocol suites yet as communication protocol.
The user radio key, be one be used for the user and withdraw a garrison/deploy troops on garrison duty, the wireless module of gate inhibition, identification.Adopt digital transmission module/ZIGBEE module/RFID, when using digital transmission module as wireless means, the cipher mode of user identity password adopts rolling code mode/study coding mode.If adopt ZIGEBEE module encrypt mode then utilize the built-in safety function of ZIGBEE protocol stack.The user radio key is used for the user withdraws a garrison/deploys troops on garrison duty, gate inhibition, identification.
Central control module is the aggregation point of warning information and alerting image sound.Central control module is by wireless data sending unit/or the warning information of ZIGBEE modular unit receiving sensor module, judge that alarm appears in which defence area, image, the sound collection module in corresponding defence area link, receive the video/audio warning information by ZIGBEE module or WLAN network interface card, send to the MMS gsm module by serial ports, be processed into the form of multimedia message by module, send multimedia message to designated mobile phone.Also can control gsm module and dial the user mobile phone warning by serial ports.
The multiple cascading networks topological structure of the remote wireless realtime multi-media-messaging service security system that the embodiment of the invention provides is to be formed by wireless relay unit, backstage controller cascade by a plurality of single network configurations.Wherein the concrete structure of wireless relay unit and backstage controller is described as follows:
Wireless relay unit, wireless relay unit have two kinds of structures to be applicable to different network nodes.A kind of structure adopts the scheme of the central processing unit MCF5272+MC13192 (the radio-frequency front-end IC that meets the ZIGBEE agreement) of FREESCALE company, Routing Protocol and the routing table of ZIGBEE that MCF5272 is built-in.Relaying, gateway, routing node as the ZIGBEE network.Second kind of structure of wireless relay unit is the structure of ZIGBEE agreement and 802.11a/b/g/i protocol conversion bridge, referring to shown in Figure 7, central processing unit MCF5272 is connected with PCI9054 with SDRAM, FLASH respectively through LOCAL BUS, central processing unit MCF5272 is connected with MC13192 through the SPI interface, and PCI9054 is connected with WLAN CARD (network interface card) through PCI BUS; Circuit structure has also increased PCI9054 except MCF5272, MC13192, its effect is that the LOCAL BUS of MCF5272 is converted into PCI BUS, is used to articulate the WLAN network interface card of MINI pci bus interface.The wireless relay unit of second kind of structure is the gateway between ZIGBEE network and the wlan network, allows the data of ZIGBEE network and the data interchange of wlan network.First kind of structure is suitable for the network node of small data quantity, and second kind of structure is with being suitable for the big data quantity node.According to environment for use, the Wireless Networking unit only uses a kind of in the said structure; Certainly in some cases also can be directly with a certain single net interior central control module as wireless relay unit.Wireless relay unit is the storage transponder of image, sound, alarm signal, is the tie point between different single networks, in the multitiered network structure between the heterogeneous networks layer.
The backstage controller, referring to shown in Figure 8, the backstage controller is one and has installed multimedia message mobile module (connecting by serial ports) additional, ZIGBEE module (connecting by serial ports), the PC or the industrial computer of 802.11a/b/g network interface card (connecting by the PCI slot).The backstage controller generally is placed in the centralized monitor machine room.Need the occasion of centralized monitor, increasing backstage controller and wireless relay unit, can form a cover centralized monitoring system.
The networking mode of embodiment of the invention remote wireless realtime multi-media-messaging service security system:
1) transducer in same defence area and video/audio acquisition module are arranged to same defence area identification address by the wire jumper that is provided with on the circuit board.
2) central control module adopts the mode of study sign indicating number to sign indicating number, extracts the key (if transducer adopts the Wireless Networking mode of digital transmission module) of all the sensors module in this single network.
3) connect central control module serial ports to a PC, the WINDOWS hyperterminal software on the operation PC.Wire jumper on the central control module circuit board is set, makes its back serial ports that powers on enter the control desk pattern.By the image in the single net of serial ports input, the IP address or the ZIGBEE MAC Address of sound collection module, and corresponding anti-regional address.Form multitiered network if desired and also need to import the address of wireless relay module and the address of backstage controller.Central control module is set up a warning information tabulation according to these information.
4) form multitiered network if desired, central control module also needs to import the address of wireless relay module.The wireless relay module is imported the routing table of whole network by serial ports.
5) wire jumper that is provided with on the central control module circuit board returns normal mode, and system powers on then.Central control module is finished networking automatically according to the image in the warning information tabulation, the address of sound module.
6) by note subscriber phone number is set, and is stored in the MMS gsm module.
The workflow of embodiment of the invention remote wireless realtime multi-media-messaging service security system:
1) user uses wireless key that system is set and enters the state of setting up defences.
2) sensor can be utilized the address in this defence area of secret key encryption after invasion, sends to central control module by the Wireless Networking circuit then.
3) central processing unit of central control module is safeguarded the warning information tabulation in different defence areas, the warning information tabulation comprises the ID in different defence areas, the IP address or the ZIGBEE MAC Address of image, sound collection module in this list net, the current state in each defence area, acquisition parameters, polling interval or the like information.After receiving the alarm signal of transducer, central control module is resolved key earlier, obtain alarming anti-regional address, thereby judge it is the transducer warning (transducer in each defence area all has unique key as identity recognition number) in which defence area, the state that corresponding defence area in the warning information tabulation is set then is an alarm status.And by the video/audio acquisition module transmission image transmission token of alarm inverted sequence in proper order in defence area to corresponding defence area.The token send mode is such, once only sends to a video/audio acquisition module, wait the image of receiving this module, voice signal after, send to the next one again.
Just the same time only allows to obtain module transmission image, the voice signal of token.Token is the sending order of control chart as the sound collection module, is not the order that control is taken, and according to the warning information tabulation, a plurality of video/audio acquisition modules can be worked simultaneously.
4) be in polling status under the video/audio acquisition module normal condition in different defence areas, so-called poll is exactly just to remove to visit central control module at regular intervals, and during the polling interval, system enters the power saving resting state, after the poll time comes, wake up automatically by timer and to carry out polling operation.Central control module goes to discern the member of present networks according to the address in the warning information tabulation, and allows it to read the warning information tabulation, and the video/audio acquisition module reads and judges whether that this defence area alarms after the warning information tabulation, just continues poll with nowhere to turn to warning.Poll-interval is by the polling interval parameter setting in the warning information tabulation.
5) if the video/audio acquisition module is found this defence area to be alarmed, just wake image unit up, the floor picture is clapped three continuously then, and shooting interval can be set by the acquisition parameters in the warning information tabulation.Judge then whether the transmission token is effective, effectively just transmits the invalid wait token status that just enters immediately.If alarm in other defence areas, only activate image unit, the Wireless Networking unit then enters the wait accepting state and no longer carries out polling operation, intercepts next step instruction of central control module.Send the releasing alarm command up to central control module, the video/audio acquisition module enters normal polling status again.
6) after image, voice signal passed to central control module, central control module transmitted the video/audio acquisition module that token is issued next alarm defence area to image.The image, the sound that receive are made multimedia message and are sent on the user mobile phone.Be stored in simultaneously on hard disk/CF card/nonvolatile storages such as SD card.Perhaps pass to the wireless relay module, pass to the backstage controller by it and handle, and according to alarm situation or the instruction of user's note, decision is to continue to gather sound, image information or cancel alarm.
Claims (6)
1, a kind of single network configuration of remote wireless realtime multi-media-messaging service security system comprises:
One mobile communications network is used for the transmission of real-time multimedia message;
Wireless terminals such as mobile phone that can sending and receiving multimedia message, PDA, the wireless connections mobile communications network is used for receiving a crime report of user whenever and wherever possible;
It is characterized in that, also comprise:
One central control module is used for the control and treatment of safety-protection system, is made up of with the image storage unit that is connected described central control processor unit, Wireless Networking unit, identification unit, embedded multimedia message Transmit-Receive Unit the central control processor unit;
Described Wireless Networking unit is used to form WLAN, adopts 802.15.4/ZIGBEE, WLAN, Bluetooth short distance radio communication agreement as the connected network communication means,
Described identification unit is used for wireless connections user radio key, the function that has decode users key, identification user identity and deploy troops on garrison duty, withdraw a garrison; The wireless connections mode can adopt modes such as digital transmission module, ZIGBEE module, RFID, bluetooth, WLAN, infrared remote control;
Described embedded multimedia message Transmit-Receive Unit is used to connect mobile communications network, be embedded MMS Client end protocol stack and wap protocol stack, done the tcp protocol stack optimized at GRPS, CDMA1X, 3G characteristic, may operate at the radio terminal system on GPRS, CDMA1X or the 3G network;
At least one defence area connects described central control module, and described defence area is provided with at least one sensor assembly and at least one video/audio acquisition module:
Sensor assembly, form with the Wireless Networking unit that is connected described sensor unit by sensor unit, described sensor unit is used to produce warning information, and described Wireless Networking unit is used for carrying out wireless connections through the wireless data sending unit of WLAN (wireless local area network) and described central control module; Described transducer adopts various security sensors; Described Wireless Networking unit adopts wireless data transmission module, DEU data encryption unit, ZIGBEE module, the bluetooth module that works in ISM band;
The video/audio acquisition module, form with the Wireless Networking unit that is connected described video/audio collecting unit by the video/audio collecting unit, described video/audio collecting unit is used for collection, the A/D conversion and the compression of video/audio signal, and described Wireless Networking unit is used for carrying out wireless connections through the Wireless Networking unit of WLAN and described central control module, transducer;
Described Wireless Networking unit adopts wireless protocols such as wireless sensor network technology ZIGBEE networking protocol, WLAN, bluetooth;
One user radio key is used for the withdrawing a garrison of user, deploys troops on garrison duty, gate inhibition and identification;
Central control module is by the warning information of Wireless Networking unit receiving sensor module, judge the defence area that alarm occurs, the video/audio acquisition module in corresponding defence area links, the video/audio signal that gather, the A/D conversion is relevant with compression, transfer to central control module through WLAN, the warning information of converting multimedia note (MMS) through mobile communications network, sends multimedia message by the embedded multimedia message Transmit-Receive Unit of central control module to designated mobile phone.Also can dial user mobile phone by the control mobile module reports to the police.
2, single network configuration of remote wireless realtime multi-media-messaging service security system according to claim 1 is characterized in that, described video/audio acquisition module adopts the external power source mode.
3, single network configuration of remote wireless realtime multi-media-messaging service security system according to claim 1 is characterized in that, described video/audio acquisition module adopts the powered battery mode.
4, a kind of multiple cascading networks structure of forming by single network of the described remote wireless realtime multi-media-messaging service security system of claim 1, it is characterized in that, comprise the upper and lower network: lower floor's network is made up of at least one single network, and each single network can independent accessing mobile communication network; Upper layer network is made of wireless relay unit and backstage controller; The central control unit of each described single network is connected with the described backstage controller of last layer network by described wireless relay unit; Whole network is a kind of structure of centralized monitoring system, and the single network of lower floor is independently unmanned one by one automatic alarm system, alarm signal, alarm sound image both can directly pass on the user mobile phone through mobile communications network, also can issue the backstage controller, pass to the centralized monitor chamber and handle by special attending personnel by wireless relay unit.
5, the multiple cascading networks structure of remote wireless realtime multi-media-messaging service security system according to claim 4 is characterized in that, the central control module of described multiple cascading networks structure is provided with the wired interface unit that comprises fixed-line telephone network telephony interface and Ethernet network interface.
6, the workflow of single network configuration of the described remote wireless realtime multi-media-messaging service security system of a kind of claim 1: it is characterized in that,
1) user uses wireless key that system is set and enters the state of setting up defences;
2) sensor can be utilized the address in this defence area of secret key encryption after invasion, sends to central control module by the Wireless Networking circuit then;
3) central processing unit of central control module is safeguarded the warning information tabulation in different defence areas, the warning information tabulation comprises the ID in different defence areas, the IP address or the ZIGBEE MAC Address of image, sound collection module in this list net, the current state in each defence area, acquisition parameters, polling interval information; After receiving the alarm signal of transducer, central control module is resolved key earlier, obtains alarming anti-regional address, thereby judges it is the transducer warning in which defence area, and the state that corresponding defence area in the warning information tabulation is set then is an alarm status; And by the video/audio acquisition module transmission image transmission token of alarm inverted sequence in proper order in defence area to corresponding defence area; The token send mode is such, once only sends to a video/audio acquisition module, wait the image of receiving this module, voice signal after, send to the next one again;
Just the same time only allows to obtain module transmission image, the voice signal of token; Token is the sending order of control chart as the sound collection module, is not the order that control is taken, and according to the warning information tabulation, a plurality of video/audio acquisition modules can be worked simultaneously;
4) be in polling status under the video/audio acquisition module normal condition in different defence areas, so-called poll is exactly just to remove to visit central control module at regular intervals, and during the polling interval, system enters the power saving resting state, after the poll time comes, wake up automatically by timer and to carry out polling operation; Central control module goes to discern the member of present networks according to the address in the warning information tabulation, and allows it to read the warning information tabulation, and the video/audio acquisition module reads and judges whether that this defence area alarms after the warning information tabulation, just continues poll with nowhere to turn to warning; Poll-interval is by the polling interval parameter setting in the warning information tabulation;
5) the video/audio acquisition module finds that this defence area alarms, and just wakes image unit up, floor picture then, and shooting interval is set by the acquisition parameters in the warning information tabulation; Judge then and transmit token, effectively just transmit the invalid wait token status that just enters immediately; Send the releasing alarm command up to central control module, the video/audio acquisition module enters normal polling status again;
6) after image, voice signal passed to central control module, central control module transmitted the video/audio acquisition module that token is issued next alarm defence area to image; The image that receives, sound are made multimedia message and are sent on the user mobile phone; Be stored in simultaneously on hard disk/CF card/nonvolatile storages such as SD card; Perhaps pass to the wireless relay module, pass to the backstage controller by it and handle, and according to alarm situation or the instruction of user's note, decision is to continue to gather sound, image information or cancel alarm.
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| CN105678666A (en) * | 2016-03-14 | 2016-06-15 | 福建农林大学 | Experimental building security and emergency contingency plan issuing system based on Internet of Things |
| CN105678666B (en) * | 2016-03-14 | 2021-10-22 | 福建农林大学 | Experimental building security and emergency plan issuing system based on Internet of things |
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| CN110533871B (en) * | 2019-08-13 | 2023-12-12 | 浙江大华技术股份有限公司 | Smoke monitoring method, device, computer equipment and storage medium |
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