Background technology:
Analog gate access control system in old community, generally adopts bussing technique shared line transportation simulator audio-video signal.Along with the fast development of network technology, residential property and the demand of owner to intelligent entrance guard intercommunication system more and more stronger.But, only adopt originally traditional analogue system to there is following major technology bottleneck problem.
If 1. network with property office, then comparatively serious the and easy attenuation distortion of signal of interference ratio after audio frequency and video analog signal long range propagation, because anti-interference is poor, networking audio-visual quality is difficult to guarantee, and the phenomenon such as sound is unintelligible appears image or in duration;
2. networking part audio frequency and video passage is mostly single channel, and same bus only allows point-to-point transmission communication, and the line is busy in actual use seriously, have impact on the normal use of intercom system;
3. function is too simple, only for call unlocking function, intelligence degree and resource utilization lower, the system expandability is poor.
The problem majority of traditional analog gate access control system concentrates on networking part, and in an interior part, its audio-visual quality still obtains the accreditation of most of user.Current, multi-network, intelligentized digital high-definition gate inhibition monitoring are widely deployed in newly-built community.How to realize connecting up in addition without the need to building inside, can take into account in existing building and the long transmission distance of analog signal lines advantage that circuit pack of registering one's residence adopts and the outer TCP/IP network digital circuit of building and the large advantage of capacity, be gate control system upgrading urgent problem.
In addition, prior art remains in safety problem, and the event of house robbery theft happens occasionally, and whether often therewith utilize the intercommunication function of gate control system to judge whether user is in along with stranger, be old man, women or child, selects object of committing a crime thus.Therefore, the gate control system that can promote security feature is needed badly.
Summary of the invention:
The object of the invention is, based on the above-mentioned pluses and minuses of analogue system and digital system, take into account both advantages and design a kind of analog digital network transducer, to realize the mixed transport of the analog and digital signal in gate control system, and the utilance of effective raising gate control system, intellectuality and hommization degree.
Another object of the present invention is, the fail safe of elevator system, improves the strick precaution to stranger, guarantees the safety of user.
The present invention is based on the above-mentioned technical problem that will solve, a kind of intelligent access control system with Analog-digital Converter function is provided.
Intelligent access control system based on modulus signal mixed transport provided by the invention, concrete technical scheme is as follows:
There is an intelligent access control system for Analog-digital Converter function, comprising: Property Management of residence machine, off-premises station, indoor set, and be connected by analog line between off-premises station with indoor set; It is characterized in that: described off-premises station comprises analog digital network transducer, and described analog digital network transducer is connected with Property Management of residence machine by TCP/IP network digital circuit.
Preferably, the analog signal from described indoor set is sent to described off-premises station via analog line, then is converted to digital signal through analog digital network transducer and is sent to Property Management of residence machine by TCP/IP network digital circuit; Be sent to described analog digital network transducer from the digital signal of Property Management of residence machine by TCP/IP network digital circuit and be converted to analog signal, then being sent to described indoor set by described off-premises station via analog line.
Preferably, described analog signal comprises audio signal, vision signal and data-signal; Described off-premises station also comprises camera and microphone, and the analog signal produced by camera and microphone is converted to digital signal through analog digital network transducer and is sent to Property Management of residence machine by TCP/IP network digital circuit; Be sent to described analog digital network transducer from the digital signal of Property Management of residence machine by TCP/IP network digital circuit and be converted to analog signal, then being sent to camera and microphone by described off-premises station.
Preferably, described analog digital network transducer comprises microprocessor, memory circuit, ethernet circuit, analog-to-digital conversion circuit and safety circuit; Described ethernet circuit is used for Transmission TCP/IP agreement; Described analog-to-digital conversion circuit is used for carrying out digital coding to simulated audio signal, analog video signal and analog data signal and compressing or digital audio and video signals, digital video signal and digital data signal are reduced to simulated audio signal, analog video signal and analog data signal; Described safety circuit is for generating call number and carrying out safety verification to call number, described call number by identity code, basic code and identification code three part form, identity code is for identifying the identity of called person, basic code is the room number of user, and identification code is encrypted transcoding by the feature code of safety circuit to the called person that user inputs and forms; Identity code comprises kith and kin's code and express delivery code, is respectively used to identify the relatives and friends of user and courier, and the feature code of called person comprises the cell-phone number of called person, identification card number or determined the code that provides by user oneself; The identity code of called person and feature code are input to described indoor set by user in advance, the identity code of called person and feature code are sent to safety circuit by indoor set, safety circuit generates the call number of called person according to the room number of the identity code of called person and feature code and user, again the call number of generation is turned back to described indoor set, the call number of called person is distributed to each called person by user; When visiting called person incoming call number, safety circuit is verified this call number, if safety circuit verifies that this call number is correct, then off-premises station is communicated with indoor set, indoor set meeting voice broadcast and screen display have relatives and friends or courier to come to visit, and user and called person are conversed; If safety circuit verify this call number mistake but room number correctly or only inputs room number time, then safety circuit judges that calling people is as stranger, off-premises station is communicated with indoor set, indoor set can voice broadcast and screen display have stranger to come to visit, when user and called person are conversed and the sound of user is modulated to electro-acoustic by safety circuit; When indoor set is set to stillness mode by user, if someone calls out this indoor set, described safety circuit judges the identity of called person according to call number, and provide corresponding automatic-answering back device voice according to the identity of called person, wherein when safety circuit judges calling people as stranger, described camera unlatching is taken pictures to caller and is sent to Property Management of residence machine and puts on record.
Preferably, described memory circuit comprises SDRAM circuit and FLASH circuit.
Preferably, the microprocessor of described analog digital network transducer is any one in ARM, DSP and single-chip microcomputer.
Preferably, this intelligent access control system has self-health consultation function, Property Management of residence machine can send heartbeat packet to each off-premises station, when the heartbeat packet of the continuous print predetermined number being sent to certain off-premises station does not all receive feedback information, is then diagnosed as this off-premises station and breaks down.
Preferably, described Property Management of residence machine comprises status monitor device further, and the geographical position of the off-premises station broken down and failure message combine and give the alarm by status monitor device.
The beneficial effect with the intelligent access control system of Analog-digital Converter function provided by the invention is: by analog digital network transducer, the advantage of analogue system and digital system can be taken into account, realize the mixed transport of the analog and digital signal in gate control system, effectively improve the fail safe of gate control system, utilance and intellectuality.
Embodiment:
Now by reference to the accompanying drawings the present invention is described further.Based on illustrated embodiment of the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As Fig. 1 shows the schematic diagram with the intelligent access control system of Analog-digital Converter function provided by the present invention.The intelligent access control system with Analog-digital Converter function of the present invention, comprising: Property Management of residence machine 3, off-premises station 2, indoor set 1, and is connected by analog line between off-premises station 2 with indoor set 1; Wherein, described off-premises station 2 comprises analog digital network transducer 4, and described analog digital network transducer 4 is connected with Property Management of residence machine 3 by TCP/IP network digital circuit.
Transmit on TCP/IP network digital circuit by using analog digital network transducer 4 analog signal that analog line transmits can be converted to digital signal, in Lou Dong and house lead in part all adopt traditional analog line, due to apart from limited, Voice & Video quality can well be ensured, networking part adopts TCP/IP Digital Transmission, which solve the problem that image harmony likeness of the deceased that analogue system long transmission distance causes is vulnerable to disturb, audio frequency and video port number is no longer by the restriction of emulation bus simultaneously, cell networking part can be ensured no longer because busy scenario appears in off-capacity, close with analogue system on the intelligent access control system cost with Analog-digital Converter function of the present invention, audio-visual quality can be compared with digital system completely, Performance Ratio analogue system is strong, and owing to adopting ripe TCP/IP switching technology, effectively prevent the damage of thunderbolt, make networking part more reliable and more stable, maintainability is strengthened greatly.
Preferably, the analog signal from described indoor set 1 is sent to described off-premises station 2 via analog line, then is converted to digital signal through analog digital network transducer 4 and is sent to Property Management of residence machine 3 by TCP/IP network digital circuit; Be sent to described analog digital network transducer 4 from the digital signal of Property Management of residence machine 3 by TCP/IP network digital circuit and be converted to analog signal, being sent to described indoor set 1 by described off-premises station 2 via analog line.
Preferably, described analog signal comprises audio signal, vision signal and data-signal; Described off-premises station 2 also comprises camera and microphone, and the analog signal produced by camera and microphone is converted to digital signal through analog digital network transducer 4 and is sent to Property Management of residence machine 3 by TCP/IP network digital circuit; Be sent to described analog digital network transducer 4 from the digital signal of Property Management of residence machine 3 by TCP/IP network digital circuit and be converted to analog signal, being sent to camera and microphone by described off-premises station 2.
Preferably, described analog digital network transducer 4 comprises microprocessor, memory circuit, ethernet circuit, analog-to-digital conversion circuit and safety circuit; Described ethernet circuit is used for Transmission TCP/IP agreement; Described analog-to-digital conversion circuit is used for carrying out digital coding to simulated audio signal, analog video signal and analog data signal and compressing or digital audio and video signals, digital video signal and digital data signal are reduced to simulated audio signal, analog video signal and analog data signal; Described safety circuit is for generating call number and carrying out safety verification to call number, described call number by identity code, basic code and identification code three part form, identity code is for identifying the identity of called person, basic code is the room number of user, and identification code is encrypted transcoding by the feature code of safety circuit to the called person that user inputs and forms; Identity code comprises kith and kin's code and express delivery code, is respectively used to identify the relatives and friends of user and courier, and the feature code of called person comprises the cell-phone number of called person, identification card number or determined the code that provides by user oneself; The identity code of called person and feature code are input to described indoor set 1 by user in advance, the identity code of called person and feature code are sent to safety circuit by indoor set 1, safety circuit generates the call number of called person according to the room number of the identity code of called person and feature code and user, again the call number of generation is turned back to described indoor set 1, the call number of called person is distributed to each called person by user; When visiting called person incoming call number, safety circuit is verified this call number, if safety circuit verifies that this call number is correct, then off-premises station 2 is communicated with indoor set 1, indoor set 1 meeting voice broadcast and screen display have relatives and friends or courier to come to visit, and user and called person are conversed; If safety circuit verify this call number mistake but room number correctly or only inputs room number time, then safety circuit judges that calling people is as stranger, off-premises station 2 is communicated with indoor set 1, indoor set 1 can voice broadcast and screen display have stranger to come to visit, when user and called person are conversed and the sound of user is modulated to electro-acoustic by safety circuit; When indoor set 1 is set to stillness mode by user, if someone calls out this indoor set 1, described safety circuit judges the identity of called person according to call number, and provide corresponding automatic-answering back device voice according to the identity of called person, wherein when safety circuit judges calling people as stranger, described camera unlatching is taken pictures to caller and is sent to Property Management of residence machine 3 and puts on record.Certainly, identity code in the present invention is not limited to kith and kin's code and express delivery code, it is only and intelligent access control system of the present invention is clearly described and exemplarily, the identity code of other purposes can be selected according to the demand of user, such as: for identifying the property code of property management personnel, the room user of commercial office purposes can set the identification code of corporator's work attendance use, the identification code to corporate client's use.In addition, user can also segment above-mentioned identification code, and such as, kith and kin's code can be further divided into father and mother, relative, company friend, college friends etc.
Intelligent access control system of the present invention is by integrated security circuit in analog digital network transducer 4, verify by the identity of safety circuit to called person and identify, and for the stranger not by verifying, use safety pattern, actual sound modulation conversion by user is electro-acoustic, thus called person cannot learn the true identity of user, whether it is old man, child or women, improve fail safe, simultaneously, camera is also taken pictures to stranger and is sent to Property Management of residence machine 3 and puts on record, further improves fail safe.Property Management of residence machine 3 summarizes the picture of all strangers, according to these pictorial informations, Property Management of residence machine 3 can identify the identity of stranger, if the calling of this stranger is repeatedly, such as three times, then judge the dangerous property of this stranger, send alarm, notice infrastructure management company takes timely disposal.
Preferably, safety circuit is not integrated in analog digital network transducer 4, but can the form of plug be combined with analog digital network transducer 4, such safety circuit is formed as the mode that can match, when not high to security requirement, the analog digital network transducer 4 not having safety circuit can be selected, thus reduce system cost.When higher security is required, the analog digital network transducer 4 of equipped safety circuit can be selected, improve the fail safe of system.
Preferably, identity code can be made up of two digits, such as: kith and kin's code is 11, and express delivery code is 22, is respectively used to the relatives and friends and the courier that identify user.Certainly, in order to improve confidentiality and fail safe, identity code also can use the single or hybrid coding of numeral and letter or character etc.Preferably, identity code is by system original definition, and all users have unified identity code, is beneficial to the unified management of residential property, but as required also can by owner or user's sets itself.
Preferably, indoor set and the indoor set in this building can utilize existing analog line to communicate, and have both comprised communication in this unit, have also comprised and other unit communication, when the both sides' off-premises station related to all is in idle condition, can realize free intercommunication in building; Its method of calling can arrange as follows, and call number is: identity code+basic code+identification code; Wherein, identity code is the unit number in this building, and basic code is the room number of user, and identification code is be encrypted transcoding by the feature code of safety circuit to the called person that user inputs to form, and also can be the numeric string that both sides authorize mutually retention; The priority of off-premises station calling is higher than the communication between indoor set, and the communication between indoor set can by the call interruption of off-premises station.
Preferably, described memory circuit comprises SDRAM circuit and FLASH circuit.Wherein, SDRAM circuit provides dynamic memory space for system cloud gray model, is the main region that system code runs; FLASH circuit then deposit embedded OS, user application or other need after system power failure preserve user data etc.
Preferably, the microprocessor of described analog digital network transducer 4 is any one in ARM, DSP and single-chip microcomputer.
Preferably, described Property Management of residence machine 3 by TCP/IP digital circuit receive indoor set warning, report for repairment and seek advice from Query Information, also can send a notification message to indoor set; Described notification message comprises: alert prompting, elevator reparing, thing industry, vote by ballot, heating installation examination water and store promotional etc.; User can determine to select to receive which notification message on indoor set according to oneself hobby.For this reason, the intelligent access control system with Analog-digital Converter function of the present invention can play and replace that legacy notifications is puted up, the function of placard distribution etc., makes up the problem that the elderly's smart mobile phone popularity rate is low
Preferably, this intelligent access control system has self-health consultation function, Property Management of residence machine 3 can send heartbeat packet to each off-premises station 2, when the heartbeat packet of the continuous print predetermined number being sent to certain off-premises station 2 does not all receive feedback information, is then diagnosed as this off-premises station 2 and breaks down.
Preferably, described Property Management of residence machine 3 comprises status monitor device further, and the geographical position of the off-premises station 2 broken down and failure message combine and give the alarm by status monitor device.
Preferably, analog line comprises three processes to audio-video signal process: first, audio, video data is sent to audio frequency and video receiving process by audio frequency and video input process, then, audio frequency and video receiving process by the data access that sends in input process in buffer queue, and carry out queue scheduling (avoiding network congestion phenomenon), subsequently, audio frequency and video output process extracts audio, video data and output of decoding from buffer queue; After each decoding output one frame data, judge whether current audio frequency and video output process is interrupted by off-premises station call signal, if be interrupted, then retain breakpoint and exit this audio frequency and video output process.Thus can elevator system performance better.
The beneficial effect with the intelligent access control system of Analog-digital Converter function provided by the invention is, by analog digital network transducer, the advantage of analogue system and digital system can be taken into account, realize the mixed transport of the analog and digital signal in gate control system, effectively improve the fail safe of gate control system, utilance and intellectuality.
Certainly, the above is only preferred embodiment of the present invention, and the present invention is not limited to above-described embodiment and implementation method.Different changes and enforcement is carried out in the scope that the practitioner of correlative technology field can permit at technological thought of the present invention, therefore all equivalences done according to structure, feature and the principle described in patent claim of the present invention change or modify, and are included in patent claim of the present invention.