CN107592159A - A kind of intelligent building optical network system and optical network apparatus - Google Patents

Abstract

The present invention relates to a kind of intelligent building optical network system and optical network apparatus, the optical network apparatus includes：Network Side Interface module, optical signal is sent for realizing the conversion between network data signals and optical signal, and to the optical line terminal of control centre, and optical signal is received from optical line terminal；PON communication modules, for being communicated by Network Side Interface module with optical line terminal；User side interface module, include the interface of multigroup different types of data, moreover, one of which interface is Ethernet interface；At least one conversion processing module, conversion process is carried out for the signal exported to PON communication modules and/or from the signal of corresponding other group interface inputs.Implement technical scheme, can solve the problems, such as that stability of a system difference is high with fault rate in the prior art, can also solve the problems, such as intellectualizing system light entering and copper back last one kilometer, and the problem of intelligent interface standardization super with grid line Distance Transmission.

Description

An intelligent building optical network system and optical network device

technical field

The invention relates to the field of information communication, in particular to an intelligent building optical network system and an optical network device.

Background technique

Traditional intelligent systems include building intercom system, monitoring system, alarm system, access control system, parking lot system, information release system, three-table CC system, video parking guidance system, property office network, AP wireless coverage, Bluetooth positioning, Multiple subsystems such as building automatic control system and intelligent lighting system, and each system has its own independent equipment, and there are different transmission protocols and interfaces, such as RS485/422/232 bus, switch value, analog value, RJ45, BNC , HDMI, VGA and other interfaces, so there will be a variety of cables and devices in each area under the conventional structure. The signals of various interface types need to be transmitted to the control center through different links, which leads to many intermediate devices. , complex structure, many connectors, many types of cables, many construction techniques and high requirements. Moreover, this multi-system of decentralized transmission also leads to poor system scalability, poor stability, high failure rate, difficulty in installation and maintenance, and low volume. very big. If there are still irregularities in the construction process, the failure rate will increase exponentially. For example, if one of the joints of the intelligent cascade equipment is not firm, it will cause a large area of equipment to be used abnormally and the maintenance cost will be extremely high.

For example, in the traditional analog intercom system, it is necessary to set up multiple inter-layer distributors, network devices, etc. to transmit the signals of the indoor unit and outdoor unit to the control center. Large, unstable system, high failure rate.

Another example is in a semi-digital intercom system, it is necessary to set up multiple interlayer decoders, selectors, host controllers, etc. to transmit the signals of the indoor unit and outdoor unit to the management host, and the interlayer decoder cascading, interface There are many joints, the installation and maintenance work is relatively large, the system is unstable, and the failure rate is high.

Contents of the invention

The technical problem to be solved by the present invention is to provide an intelligent building optical network system and optical network device with high stability and low failure rate in view of the above-mentioned defects of poor stability and high failure rate in the prior art.

The technical solution adopted by the present invention to solve the technical problem is: to construct an optical network device, comprising:

The network side interface module is used to realize the conversion between the network data signal and the optical signal, and send the optical signal to the optical line terminal of the control center, and receive the optical signal from the optical line terminal;

a PON communication module, configured to communicate with the optical line terminal through the network side interface module;

The user-side interface module includes multiple groups of interfaces of different data types, and one of the interfaces is an Ethernet interface, and the Ethernet interface is directly coupled to the PON communication module;

At least one conversion processing module is coupled to the PON communication module and other group interfaces, and is used for converting the signals output by the PON communication module and/or the signals input from corresponding other group interfaces.

Preferably, the user-side interface module includes N Ethernet interfaces and M1 RS485 bus interfaces, and the conversion processing module is an MCU, and the MCU is connected to the PON communication module through a UART interface, wherein, N, M1 are natural numbers greater than 1, respectively.

Preferably, the user-side interface module includes N Ethernet interfaces and M2 2-core digital broadband power carrier interfaces, wherein N and M2 are respectively natural numbers greater than 1, and the conversion processing module includes:

The broadband carrier unit is connected to the PON communication module through the RGMII interface, and is used to demodulate the broadband carrier signal input by each 2-core digital broadband power supply carrier interface, and modulate the signal input by the PON communication module into a broadband carrier signal ;

The power supply unit is used to provide 12V DC voltage for the broadband carrier unit.

Preferably, the user-side interface module includes N Ethernet interfaces and M3 two- or four-wire audio analog intercom interfaces, wherein N and M3 are respectively natural numbers greater than 1, and the conversion processing module includes an MCU and an audio codec unit connected to the MCU.

Preferably, the user-side interface module includes N Ethernet interfaces and M4 audio and video analog intercom interfaces, wherein N and M4 are respectively natural numbers greater than 1, and the conversion processing module includes: MCU and respectively connected The audio decoding unit, the video decoding unit and the RS485 extension unit of the MCU.

Preferably, the user-side interface module includes N Ethernet interfaces and M5 half-digital intercom interfaces, wherein N and M5 are respectively natural numbers greater than 1, and the conversion processing module includes: MCU and the Bus expansion unit for MCU connection.

Preferably, the user-side interface module includes N Ethernet interfaces, M6 digital input and output interfaces, and M7 analog input and output interfaces, wherein N, M6, and M7 are natural numbers greater than 1, and the Transform processing modules include:

MCU;

A relay output unit connected to M6 digital input and output interfaces and the MCU respectively;

A DC analog output unit connected to the M7 analog input and output interfaces and the MCU respectively.

Preferably, the user-side interface module includes N Ethernet interfaces, M8 analog video interfaces and M9 RS485 interfaces, wherein N, M8, and M9 are respectively natural numbers greater than 1, and the conversion processing module includes video coding unit.

Preferably, the user-side interface module includes N Ethernet interfaces and M10 video interfaces, wherein N and M10 are natural numbers greater than 1, and the conversion processing module includes a video decoding unit.

Preferably, an AP access module is also included, and the AP access module is coupled to the PON communication module.

Preferably, the Ethernet interface is an Ethernet interface supporting PoE power supply.

The present invention also constructs an intelligent building optical network system, which is characterized in that it includes:

A plurality of above-mentioned optical network devices arranged on the user side;

The optical line terminal arranged in the control center is used to connect with the optical network device through the passive optical distribution network.

Implement the technical solution of the present invention, based on the PON network communication technology, develop an optical network device with multiple interfaces of the intelligent system, the optical network device integrates various types of interfaces in each intelligent subsystem with PON technology, so that Terminals in different subsystems can be directly connected to optical network devices with multi-functional interfaces. After the optical network devices convert and process various types of input signals, the converted optical signals are then transmitted to the control center through the PON shared optical fiber. The optical line terminal can realize stable, fast and safe data transmission. Therefore, it can solve the problems of poor system stability and high failure rate in the prior art, and can also solve the problem of the last mile of light in the intelligent system and copper back. As well as the standardization of intelligent interfaces and the problem of over-distance transmission of network cables. After the intelligent interface PON transmission is standardized in the future, cameras, controllers, access control machines, information release machines, query machines, alarm hosts, pedestrian gates, APs, collectors, actuators, and protocol converters at the front end of the intelligent subsystem , intercom extensions, etc. can be directly connected to the optical network platform, which simplifies the system structure, solves the problem of over-distance transmission of network lines, and also solves the problems of system stability and failure reduction.

Description of drawings

In order to illustrate the embodiments of the present invention more clearly, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. As far as the skilled person is concerned, other drawings can also be obtained based on these drawings on the premise of not paying creative work. In the attached picture:

FIG. 1 is a logical structural diagram of Embodiment 1 of an optical network device of the present invention;

Fig. 2 is a logical structure diagram of Embodiment 1 of the optical network system for a smart building of the present invention.

detailed description

FIG. 1 is a logical structure diagram of Embodiment 1 of the optical network device of the present invention. The optical network device of this embodiment includes a PON communication module 11, a network-side interface module 12, a user-side interface module 13, and a conversion processing module 14. The following describes each modules:

In this embodiment, the network-side interface module 12 is used to convert between network data signals and optical signals, and to send optical signals to and receive optical signals from the optical line terminal (OLT) in the control center. In a specific application, the network side interface module can use an optical burst transceiver module, which mainly performs photoelectric conversion on the optical signal transmitted on the optical fiber and transmits it to the PON communication module. At the same time, it performs electro-optical conversion on the electrical signal transmitted by the PON communication module. Converted for transmission on optical fiber. In addition, it also realizes the burst transmission of ONU uplink data and the continuous reception of downlink data. Burst transmission refers to the power output only in the time slot allocated to it, and it is in the off state at other times.

The PON communication module 11 is used for communicating with the optical line terminal through the network side interface module 12 . Specifically, the PON communication module 11 completes corresponding functions under the control of the OLT, for example, including: Ethernet basic functions, VLAN functions, dynamic bandwidth allocation functions, service flow classification functions, priority marking functions, party and scheduling functions, Traffic shaping and traffic control functions, cache management functions, authentication functions, and multicast functions. In addition, it also includes: automatic joining function, ranging and delay compensation function, dynamic bandwidth allocation function, forward error correction function, etc. Preferably, the PON communication module 11 can adopt a chip of model BCM68380, and provide the following interfaces: UART interface, MDIO interface, GPIO interface, JTAG interface, MII/RGMII interface, and integrate EPON SERDES. Inside the PON communication module, when the OLT allocates a logical link for it, multiple data buffer queues are set according to the priority. When the uplink sending window arrives, the data in each queue is scheduled through the priority scheduling algorithm, and then sent. In this way, the data of high-priority services will naturally enter the high-priority queue, thereby obtaining guarantees in terms of bandwidth and delay; when the OLT allocates multiple logical links to it, different logical links are used to distinguish the data flows of different services , so as to respectively realize the transmission of different business data streams. In this way, the LLID is used to implement service classification, and different services under the same ONU use different LLIDs to apply for bandwidth from the OLT separately, and the OLT then authorizes them separately.

The user-side interface module 13 includes multiple sets of interfaces of different data types, only two sets of interfaces 131 and 132 are shown in the figure, and the interface 131 is an Ethernet interface, which is directly coupled to the PON communication module 11 .

The conversion processing module (only one conversion processing module 14 is shown in the figure) is coupled to the PON communication module 11 and the interface 132, and is used for the signal output by the PON communication module 11 and/or the signal input from other corresponding group interfaces Perform conversion processing.

It should be noted here that, in addition to the interface 131, only one other group interface 132 is shown in the figure. It should be understood that in other embodiments, the number of other group interfaces may be multiple, for example, may include at least the following One: RS485/422/232 bus interface, 2-core digital broadband power carrier interface, switch input and output interface, analog input and output interface, audio and video interface, USB interface, and the audio and video interface can be specifically: BNC interface, HDMI interface, VGA interface, AV interface, DVI interface, S-Video interface, RCA interface, AUDIO interface and so on.

In a specific embodiment, the conversion processing module 14 may be an MCU loaded with a protocol conversion processing program, an audio and video codec unit, and a modulation and demodulation unit.

Preferably, the optical network device of the present invention further includes an AP access module and an expansion module respectively coupled to the PON communication module, and the expansion module is used to expand at least two Ethernet interfaces. Further, the Ethernet interface 131 is an Ethernet interface supporting PoE power supply.

FIG. 2 is a logical structure diagram of Embodiment 1 of the intelligent building optical network system of the present invention. The intelligent building optical network system of this embodiment includes a plurality of optical network devices 10 arranged on the user side and an optical line terminal 20 arranged at the control center. Moreover, the optical network device 10 and the optical line terminal 20 are connected through a passive optical distribution network.

The intelligent building optical network system of the present invention may include subsystems such as intercom, monitoring, access control, alarm, patrol, and elevator five-party intercom for each residential unit, and may also be extended to apply smart home, information release, and smart mailboxes. , property control front desk, wireless AP coverage, meter reading and other subsystems. Although many intelligent products are now moving towards digital network products, most of the network intelligent products currently only provide RJ45 electrical port (Ethernet interface) connection. If the traditional three-layer optical network transmission platform is used, the construction cost will be too high , and because there are more switching devices and interface connectors at the aggregation layer, the failure rate is relatively high, and the construction cost and installation and maintenance cost are relatively high. If a layer-2 optical network transmission platform is used, because each access layer switch and core switch have exclusive transmission optical fibers, the cost of material input and installation and maintenance costs will naturally increase, and most of the intelligent devices do not have network interfaces. It must be converted in advance before it can be transmitted through the network, and some intelligent signals must independently occupy optical fiber transmission, so the market is predicamented by the instability of the intelligent system and the high failure rate, resulting in the demand for intelligent optical network software and hardware integrated platform The demand for equipment is urgent, and the optical network device of this embodiment can highly integrate the current intelligent decentralized system, making the system stable and low in failure rate, making investment and construction simpler and cost-effective, reducing the maintenance amount of the property system, and making the user experience better Richer and more satisfying.

In view of the characteristics of complex structure, many intermediate devices, many interface joints, stable system requirements, easy installation and maintenance, low failure rate, cost saving, system security, and good system scalability in the existing technology, combined with the GPON network structure is simple and avoids It eliminates the electromagnetic interference and lightning effects of external equipment, reduces the failure rate of lines and external equipment, improves system reliability, is easy to install and maintain, easy to expand, and saves maintenance costs. It is the main technology used by operators at present, and improves GPON. The optical network device at the user end integrates various types of interfaces in each subsystem with the ONU, so that different subsystems can be directly connected to the optical network device with multi-functional interfaces, so as to carry out network transmission, and solve the most difficult problem of building intelligence at present. Troubled system stability and high failure rate. The improved intelligent building optical network system of this application is beneficial to the construction party, the property owner, and the engineering company. For the project investor: it can save investment costs, the system is simple and easy to construct, and the project progress and quality are easy to control; for the property user. Speaking: stable system, low failure rate, convenient maintenance, strong scalability, convenient upgrade and expansion of later intelligent functions, etc.; for engineering companies: simple and easy maintenance of the system, reduced maintenance costs, convenient installation, low construction labor costs, etc. .

xPON network protection method: According to the xPON network structure, there are mainly four protection methods, namely, optical fiber backup, central optical device port backup, front-end and back-end full backup, and hybrid backup. Considering the cost, difficulty of implementation, and the characteristics of intelligent systems, the most commonly used method is optical fiber backup, that is, only one core of optical fiber is needed for transmission, and only two cores are needed for backup. The cost is more economical than traditional optical fiber transmission backup.

The present invention improves the optical network device at the user end to meet the requirements for direct access to multiple signals in the optical network system of an intelligent building. The specifically improved optical network device is as follows:

In the first specific embodiment, the user-side interface module includes N Ethernet interfaces (RJ45 interfaces) and M1 RS485 bus interfaces, and the conversion processing module is an MCU, and the MCU is connected with the PON communication module through the UART interface, wherein , N and M1 are natural numbers greater than 1 respectively. For example, in one application, an optical network device (model: Indas-G1-nZnWPA) with bus interface, Gigabit PON uplink port and RJ45 interface supporting POE power supply can also be used as a wireless AP. The optical network device mainly solves the problem of simultaneous transmission of multiple bus data and multiple network data to the control center through a shared 1-core optical fiber. For example, the all-in-one card subsystem, alarm subsystem, intelligent lighting subsystem, meter reading subsystem, and license plate guidance subsystem based on RS485 bus transmission can be connected with the network all-in-one card subsystem, network monitoring network subsystem, and network The intercom subsystem and the network parking guidance camera subsystem share 1-core optical fiber for transmission to the control center. At this time, the front-end equipment in each subsystem can be connected to the corresponding interface of the corresponding optical network device. In this way, the distributed structure of the intermediate and central equipment is simplified, which is more suitable for the current mainstream intelligent cloud concept. Multiple intelligent systems do not have their own standards and protocols, and it is difficult to upgrade to TCP/IP network protocol for unified transmission at this stage. However, with the continuous strengthening of user needs, the continuous development of network technology, and the already It has the compatibility technology for all PON port optical equipment access, so in the near future, intelligent multi-system front-end equipment will become a trend for transmission through the optical network platform, so that the distributed structure that simplifies the intermediate and central equipment is more suitable for the current mainstream intelligentization cloud concept. When laying the traditional intelligent network, the WIFI coverage is completed, and Party A does not need to invest in the construction of the WIFI system.

In the second specific embodiment, the user-side interface module includes N Ethernet interfaces and M2 2-core digital broadband power carrier interfaces, wherein N and M2 are respectively natural numbers greater than 1, and the conversion processing module includes a power supply unit And the broadband carrier unit, wherein the power supply unit is used to provide 12V DC voltage for the broadband carrier unit. The broadband carrier unit is connected to the PON communication module through the RGMII interface, and is used to demodulate the broadband carrier signal input by each 2-core digital broadband power carrier interface, and modulate the signal input by the PON communication module into a broadband carrier signal. In addition, when the 2-core digital broadband power supply carrier interface is connected to multiple terminal devices in parallel, multiple terminal devices and the optical network device can form a network by themselves. Therefore, when the power supply is sufficient, more terminal devices can be connected. The network data after networking is converted into optical signals by optical network devices and transmitted to the control center. In a specific application, the optical network device (model: Indas-G1-nJnWP) has a 2-core digital intercom power carrier interface, an RJ45 interface (supporting POE power supply), and 1 Gigabit PON uplink port. It mainly solves the old project 2/4/6/8-core and other multi-core analog and semi-digital intercom systems. Without changing the entry line, it only needs to use any 2-core line of the original intercom to communicate with the original intercom. The digital upgrade of the system is mainly suitable for projects where most of the indoor extensions cannot be used and needs to be replaced. At the same time, it can also save the cost of entry line materials and labor costs when applied to new projects, and the installation is simple and the failure rate is low. Each optical network device with N-channel 2-core power carrier digital output is shared and transmitted to the control center through 1-core optical fiber. Each optical fiber can connect up to 128 optical network devices, that is, each optical network device can be connected to 6 digital intercoms According to calculations, 1-core optical fiber can be connected to 768 digital intercoms, which can theoretically expand the number of unlimited users, and has a simple structure, stable system, low failure rate, and small maintenance. After the upgrade, the owner can enjoy APP mobile digital intercom, and can also enjoy multiple door opening methods such as QR code, APP, IC card, password, fingerprint, Bluetooth, etc. Talk about troubles. For the property, it can realize the digital intercom in the community, improve the satisfaction of the owners, and increase the stickiness of the owners to the community APP, so as to expand and realize the "Internet +" added value of the group in the later stage. The function of the broadband carrier of the modulation and demodulation unit is to transmit 12V DC voltage through the 2-core wire, and at the same time carry the network signal of 100M bandwidth on the DC voltage for data transmission function, and the data and power are transmitted by the same 2-core wire carrier. This is not POE power supply. POE power supply is a conventional RJ45 network cable that transmits 12V DC power for equipment use. The data and power supply have nothing to do with the network cable. The principle is that the 100M bandwidth network cable generally only uses 1236 cores and 4578 cores in the network cable. The core is not used, and the POE power supply uses the 78 two-core wire in the network cable to supply power. As long as the network cable transmits data, the POE power supply output can be defined, which is a conventional practice and depends on the needs of users.

In a third specific embodiment, the user-side interface module includes N Ethernet interfaces and M3 two- or four-wire audio analog intercom interfaces, wherein N and M3 are respectively natural numbers greater than 1, and the conversion processing module Including: MCU and an audio codec unit connected to the MCU. In a specific application, the optical network device (model: Indas-G1-nTnWP) has a traditional two- or four-wire elevator analog intercom interface, a Gigabit PON uplink port and an RJ45 interface that supports POE power supply. It mainly solves the problem of each elevator unit transmitting N channels of intelligent network data while transmitting M3 channels of elevator analog intercom without changing the original car intercom equipment, and sharing transmission to the control center through 1-core optical fiber. The new elevator digital intercom can directly use the N-way RJ45 electrical port (supporting POE power supply) solution. There are several implementation methods for elevator intercom, some have no compressed audio signal, and some have been converted into 485 bus signal. The audio codec output and 485 output of this optical device are for compatibility with different implementation methods. MCU often says single-chip microcomputer. Combining CPU, RAM, ROM and various I/O interfaces, the main function is to judge, detect, allocate, request, execute and other instructions. When the user on the left side requests to make a call, the MCU will only connect after checking and judging. On the contrary, when there is a call request on the right side, the MCU will pass through after judging.

In the fourth specific embodiment, the user side interface module includes N Ethernet interfaces and M4 audio and video analog intercom interfaces, wherein N and M4 are respectively natural numbers greater than 1, and the conversion processing module includes: MCU and They are respectively connected to the audio decoding unit, video decoding unit and RS485 extension unit of the MCU. In a specific application, the optical network device (model: Indas-G1-nMJnWP) has an analog intercom interface, an RJ45 interface that supports POE power supply, and a Gigabit PON uplink port. One of the current mainstream building simulation video intercom system structures in the market is: the home line is a multi-core line + video line. This structure is currently a product eliminated by the market, but it has been widely used in the market in the early stage. The main problem of the intercom system with this structure is that there are too many intermediate devices and equipment cascading, and there are too many intermediate interface connectors, resulting in poor system stability, high failure rate, and many items cannot be used normally. In this embodiment, the unit outdoor station is compatible with the analog indoor extension, and the transmission is based on the passive optical network platform intercom system, which solves the problem that the replacement cost of a large number of analog extension stations in the market is too high, and there are digital unit door intercom and Other customers who need digital intelligence. The digital unit door intercom can realize multiple door opening methods such as QR code, APP, IC card, password, fingerprint, Bluetooth, etc. It is a mainstream and trending product in the market. For a large number of community building intercoms that have been built, the property only needs to replace the digital unit door operator, and replace the original floor distributor to distribute the optical network device for the digital floor based on the optical network platform communication (the output interface is compatible with the original analog intercom multi-core wire and Video line structure), and the indoor extension does not need to be replaced, which greatly reduces the cost of upgrading the original building intercom system, and greatly reduces the failure rate of the original analog intercom system by more than 2/3, reducing the amount of system maintenance. After the upgrade, the owner can enjoy APP mobile digital intercom, and can also enjoy multiple door opening methods such as QR code, APP, IC card, password, fingerprint, Bluetooth, etc. Speaking of troubles. For the property, it can realize the digital intercom in the community, improve the satisfaction of the owners, and increase the stickiness of the owners to the community APP, so as to expand and realize the "Internet +" added value of the group in the later stage.

In the fifth specific embodiment, the user-side interface module includes N Ethernet interfaces and M5 semi-digital intercom interfaces, wherein N and M5 are respectively natural numbers greater than 1, and the conversion processing module includes: MCU and Bus expansion unit for MCU connection. In a specific application, the optical network device (model: Indas-G1-nBJnWP) has a half-digital intercom interface, an RJ45 interface that supports POE power supply, and a Gigabit PON uplink port. The current mainstream building semi-digital video intercom system in the market is mainly a network cable home solution. Although it is a network cable transmission method, the bus + power signal is transmitted in the network cable, not the TCP/IP protocol network signal. This structural system has been gradually eliminated by the digital system, but it has been widely used in the market in the early stage. The main problem of the intercom system with this structure is that there are too many intermediate devices and equipment cascading, and there are too many intermediate interface connectors, resulting in poor system stability, high failure rate, and many items cannot be used normally. In this embodiment, the digital unit VTO is compatible with the semi-digital indoor extension, and transmits the intercom system based on the optical network platform, which solves the problem that the replacement cost of a large number of analog extensions in the market is too high, and there are digital unit door intercom and Other customers who need digital intelligence. The digital unit door intercom can realize multiple door opening methods such as QR code, APP, IC card, password, fingerprint, Bluetooth, etc. It is a mainstream and trending product in the market. For a large number of community building intercoms that have been built, the property only needs to replace the digital unit door operator, and replace the original floor distributor to distribute the optical network device for the digital floor based on passive optical network platform communication (the output interface is compatible with the original network line transmission structure. ), and the indoor extension does not need to be replaced, which greatly reduces the cost of upgrading the original building intercom system, and greatly reduces the failure rate of the original semi-digital intercom system by more than 1/2, reducing the amount of system maintenance. After the upgrade, the owner can enjoy APP mobile digital intercom, and can also enjoy multiple door opening methods such as QR code, APP, IC card, password, fingerprint, Bluetooth, etc. Speaking of troubles. For the property, it can realize the digital intercom in the community, improve the satisfaction of the owners, and increase the stickiness of the owners to the community APP, so as to expand and realize the "Internet +" added value of the group in the later stage. The bus expansion unit means that the MCU has only one bus interface, and when multiple buses need to be connected, a bus signal needs to be allocated and processed.

In the sixth specific embodiment, the user-side interface module includes N Ethernet interfaces, M6 digital input and output interfaces, and M7 analog input and output interfaces, wherein N, M6, and M7 are natural numbers greater than 1, respectively, Moreover, the conversion processing module includes: MCU, relay output unit and DC analog output unit, wherein, the relay output unit is respectively connected with M6 digital input and output interfaces and MCU, and the DC analog output unit is respectively connected with M7 analog input and output Interface and MCU connection, for example, can output 0-5/10V voltage. In a specific application, the optical network device (model: Indas-G1-nIOnWP) has a DI/DO interface, an RJ45 interface supporting POE power supply, and a Gigabit PON uplink port. It mainly solves the problem of multi-channel intelligent switch input and output alarm signals, control signals and multi-channel intelligent network data being shared and transmitted to the control center through 1-core optical fiber at the same time. In this embodiment, the front-end switching value is directly converted into coded data through the improved optical network device, and the monitoring center can complete the data docking through software, which can reduce the number of intermediate or terminal terminals such as alarm hosts, operating keyboards, and switching value long-distance transmitters. equipment, effectively improve system stability, integration and reduce failure rate.

In the seventh specific embodiment, the optical network device (model: Indas-G1-A) of this embodiment has an RJ45 interface supporting POE power supply, 1 Gigabit PON uplink port, and can be used as a wireless AP. Of course, the AP access module can also be built into intelligent devices such as cameras, access controllers, etc., which mainly solves the problem of full-range wireless AP coverage in the community and saves investment costs. It transmits to the control center through 1-core optical fiber sharing, A thin wireless AP system can be realized by adding an AC controller through the control center.

In the eighth specific embodiment, the user-side interface module includes N Ethernet interfaces, M8 analog video interfaces, and M9 RS485 interfaces, wherein N, M8, and M9 are respectively natural numbers greater than 1, and the conversion processing module Contains video coding units. In a specific application, the optical network device (model: Indas-G1-nBnWP) has an analog video interface, RS485 bus interface, 1 Gigabit PON uplink port for networking, and RJ45 (supports POE power supply). It mainly solves the problem of transmitting intelligent analog camera signals installed in multiple existing projects or new projects and multiple intelligent network data signals to the control center through a shared 1-core optical fiber. The highest definition of analog video encoding is WD1 format, that is, the resolution is 960×576, which can fully utilize the camera performance of the SONYEffio chip solution without affecting the effect of monitoring and playback images. Due to the cost reduction of network cameras, there are too many video image nodes transmitted by video optical transceivers, the system is unstable, the failure rate is high, and the installation and maintenance are inconvenient, etc., it is facing the trend of market elimination. However, the optical network device of this embodiment can meet the needs of new installation of analog cameras and reconstruction of huge old project lines, and can also transmit signals of multiple newly installed network cameras.

In the ninth specific embodiment, the user-side interface module includes N Ethernet interfaces and M10 video interfaces, wherein N and M10 are natural numbers greater than 1, and the conversion processing module includes a video decoding unit. In a specific application, the optical network device (model: Indas-G1-nHnWP) has a video (for example, HDMI) interface, 1 Gigabit PON uplink port, and an RJ45 interface supporting POE power supply. It mainly solves the problem that the control center releases high-definition video and audio information, and the front-end decoding output and N-channel intelligent network data signals are simultaneously transmitted to the control center through the shared 1-core optical.

In addition, in this embodiment, the OLT in the intelligent building optical network is used as the core functional device (model: Indas-G1-nPON), which has the functions of centralized bandwidth allocation, control of each ONU, real-time monitoring, operation, maintenance and management of the PON system. Conforms to ITU.T G.984.x GPON standard, complies with China Telecom/China Unicom GEPON intercommunication standard, 8/16*PON service ports, and switching strap bandwidth of more than 250Gbps, mainly meeting the needs of big data exchange in the intelligent system control center.

Regarding the software of the intelligent optical network software and hardware comprehensive integration platform, it should be noted that the main intelligent integrated management platform software currently on the market is developed based on the basic monitoring system, some based on the intercom system, and some based on the one-card system. And so on, when the software of each intelligent integrated management platform integrates multiple systems, it mainly exchanges data through the protocol docking of the host interface of each intelligent subsystem, and the improved intelligent integrated platform software is based on xPON optical Intelligent optical network integration platform management software developed by multiple subsystems such as network, building automation control, integration of multiple intelligent system kernel modules, platform equipment status monitoring, BIM operation and maintenance, and equipment energy saving. Therefore, the intelligent building optical network system of this embodiment has the characteristics of simple structure, stable system, and low failure rate. Generally, it only needs to be simply connected to the front-end equipment. For example, the alarm system only needs to consider the design of the detector. The signal can be transmitted to the optical network device, and there is no need to consider the intermediate equipment, the central alarm host and the operation of the disk; for example, after the camera signal of the analog monitoring system is connected to the optical network device, there is no need to consider the traditional DVR, video matrix, Operating keyboards, video optical transceivers and other equipment; for example, after the original analog intercom room extension is upgraded to a two-wire digital intercom extension, the intercom signal is directly transmitted to the optical network device, no need to consider the floor distributor, host selector, Network converters, fiber optic transceivers, and more.

Finally, it needs to be explained that the optical network device model naming rules: Indas-G1-nZnIOnBnJnHnWPA, the left string Indas represents the abbreviation of Shenzhen Dashi Intelligent Co., Ltd., the middle character G1 represents the first generation of optical network, and the right string n represents Quantity, Z indicates bus, W indicates RJ45 network interface, A indicates AP coverage, J indicates the number of indoor extensions that can be connected to digital video intercom, B indicates video encoding, IO indicates switch input and output, H indicates high-definition decoding, P indicates Support POE power supply output. Intelligent optical network software and hardware integrated platform software model naming rules: IndasIBMS-Gx.x, the left string Indas means the abbreviation of Shenzhen Dashi Intelligent Co., Ltd., the left string IBMS means intelligent integrated system, and the right string G means based on Intelligent optical network software and hardware integrated platform software established by the optical network, x.x indicates the software version number.

The following example specifically illustrates how each subsystem in the intelligent building optical network system realizes signal transmission:

1. Monitoring subsystem:

Elevator machine room: 1) After the car elevator analog camera video signal is connected to the analog video interface of the optical network device, the optical network device encodes it and transmits the signal to the monitoring center NVR for storage through the passive optical network, and decodes it on the video wall. 2) The high-definition network camera of the car elevator is transmitted through the wireless network bridge on the top of the car. After the wireless network bridge in the elevator machine room receives and outputs the network video signal and connects it to the high-definition video interface of the optical network device, the optical network device transmits the signal through the passive network To the monitoring center NVR storage, decoding on the TV wall.

Ordinary residential floors: 1) After the video signal of the analog camera in the elevator hall or corridor is connected to the analog video interface of the optical network device shared with the intercom subsystem, the optical network device encodes it and transmits it to the NVR storage of the monitoring center through the passive optical network , decoding on the TV wall. 2) The output network signal of the network high-definition camera is connected to the optical network device shared with the intercom subsystem, and the optical network device transmits the signal to the monitoring center through the passive network. 3) On the first floor lobby network HD camera + AP wireless coverage + building digital intercom unit + access control controller + HDMI high-definition decoding information release screen After the signal is connected to the optical network device, the optical network device transmits the signal through the passive network to monitoring Center. The building digital intercom unit and access control machine can open the door in multiple ways such as QR code, APP, IC card, password, fingerprint, and Bluetooth.

Outdoor park: analog camera + network HD camera + AP wireless coverage + LED information release screen and other signals are connected to the optical network device, and the optical network device is then transmitted to the monitoring center through the passive network.

2. Building intercom subsystem:

Analog multi-core line system: The indoor analog intercom extension transmits the intercom signal to the floor optical network device (replacing the original intercom floor distributor) through the multi-core line + SYV video line, and the optical network device then passes the signal through the passive optical The network is transmitted to the monitoring center, and the intercom management machine in the monitoring center manages the intercom signal on the floor. The signal is transmitted to the monitoring center through the passive optical network, and the intercom management machine in the monitoring center manages the intercom signal on the floor.

Half-digital one-line communication system: the indoor analog intercom extension transmits the intercom signal to the floor optical network device (replacing the original intercom floor distributor) through the network cable, and the optical network device transmits the signal to the monitoring center through the passive optical network. The intercom management machine in the monitoring center manages the intercom signal on the floor. The unit door station on the first floor transmits the intercom signal to the optical network device on the first floor through the network cable, and the optical network device transmits the signal to the monitoring center through the passive optical network. The intercom management machine in the monitoring center manages the floor intercom signals.

Two-wire carrier digital intercom: The indoor digital intercom extension transmits the intercom signal to the floor optical network device (floor cameras can share the transmission) through the 2-core line, and the optical network device transmits the signal to the monitoring center through the passive optical network. The intercom management machine in the monitoring center manages the intercom signal on the floor. The unit door station on the first floor also transmits the intercom signal to the optical network device on the first floor through 2-core wires (floor cameras can share the transmission), and the optical network device transmits the signal through The passive optical network is transmitted to the monitoring center, and the intercom management machine in the monitoring center manages the floor intercom signals.

Digital intercom system: The indoor digital intercom extension transmits the intercom signal to the floor optical network device through the network cable (floor cameras can share the transmission), and the optical network device transmits the signal to the monitoring center through the passive optical network. The intercom management machine manages the intercom signal on the floor. The unit door station on the first floor transmits the intercom signal to the optical network device on the first floor through the network cable (floor cameras can share the transmission), and the optical network device transmits the signal to the In the monitoring center, the intercom management machine in the monitoring center manages the floor intercom signals.

3. Alarm subsystem:

Perimeter alarm system: Infrared cross-radiation or infrared detector output switching alarm signal is connected to the outdoor optical network device, and the optical network device transmits the signal to the control center through the passive optical network, and the control center processes and communicates with the front-end alarm signal. Linkage with other systems on the platform and electronic map display.

Indoor alarm system: Infrared detectors, emergency buttons, door sensors, human body induction detectors and other output switch alarm signals are connected to the outdoor optical network device, and the optical network device transmits the signal to the management control center through the passive optical network, and the control center Process the front-end alarm signal and link with other systems on the platform and display the electronic map.

4. Elevator intercom subsystem:

Traditional analog two-four-wire bus intercom: In the case of keeping the original elevator intercom equipment unchanged, the intercom bus in the elevator machine room is connected to the optical network device, and the optical network device transmits the signal to the control center through the passive optical network. When the control center intercoms with the elevator, it also associates the video image of the elevator at the same time, so that the property personnel can keep abreast of the current situation of the elevator.

Elevator digital intercom: The output network signal of the elevator digital intercom system is connected to the optical network device, and the optical network device transmits the signal to the control center through the passive optical network. When the control center intercoms with the elevator, it also associates the video image of the elevator. It is convenient for property personnel to keep abreast of the current situation of the elevator.

5. Access control subsystem:

Traditional bus-based access control controller: support multi-channel access control bus signals to access the optical network device, and the optical network device transmits the signal to the control center through the passive optical network, and the control center manages and authorizes the access control system.

Network multi-door access control controller: support multi-channel access control network signal access to the optical network device, and the optical network device transmits the signal to the control center through the passive optical network, and the control center manages and authorizes the access control system.

6. Parking lot management subsystem:

Traditional parking lot system and license plate recognition parking lot system: the control signal of the parking lot and the surrounding network monitoring signal are connected to the optical network device, and the optical network device transmits the signal to the control center through the passive optical network, and the control center manages and authorizes the system .

7. Video parking space guidance and reverse car search subsystem:

The camera is directly connected to the network camera + release terminal + guidance terminal + AP wireless coverage + Bluetooth positioning and other signals are connected to the optical network device, and the optical network device then transmits the signal to the license plate recognition terminal of the control center through the passive network (also can be front-mounted) , At the same time, the user's mobile phone realizes real-time car-finding path guidance through the garage WIFI network and Bluetooth positioning, providing users with thoughtful services and improving the value of related value-added services.

8. Wireless network coverage subsystem:

Generally, a separate wireless coverage network needs to be set up separately. After improvement, every 4-8 cameras in the lobby on the first floor, outdoor park, and basement are connected to an optical network device, and each optical network device has its own AP function. There is no need to rebuild a wireless AP system, and the AP can be set as a thin or fat structure according to needs, and this structure is also suitable for commercial building applications.

9. Information release subsystem:

At present, the community information release is generally provided by the advertising company for free with an offline information release system, which basically has no intersection with the property, that is, it will not increase the amount of maintenance but will not bring value-added. After the improvement, the information release system is changed to the wired or AP online type. Property or real estate groups can make full use of the information release system to improve services and increase related value-added.

10. Other bus communication subsystems:

The signal of the bus system transmission equipment is connected to the optical network device, and the signal of the optical network device is transmitted to the control center through the passive network, and the control center manages the front-end data.

11. Property office network subsystem:

When the optical network device has a wired RJ45 network port and AP wireless coverage function, the property office network only needs to install the optical network device to meet the normal property management and office network applications of the networked intelligent system.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of the claims of the present invention.

Claims (12)

1. An optical network device, characterized in that, comprising: The network side interface module is used to realize the conversion between the network data signal and the optical signal, and send the optical signal to the optical line terminal of the control center, and receive the optical signal from the optical line terminal; a PON communication module, configured to communicate with the optical line terminal through the network side interface module; The user-side interface module includes multiple groups of interfaces of different data types, and one of the interfaces is an Ethernet interface, and the Ethernet interface is directly coupled to the PON communication module; At least one conversion processing module is coupled to the PON communication module and other group interfaces, and is used for converting the signals output by the PON communication module and/or the signals input from corresponding other group interfaces. 2. The optical network device according to claim 1, wherein the user side interface module comprises N Ethernet interfaces and M1 RS485 bus interfaces, and the conversion processing module is an MCU, and the MCU passes The UART interface is connected to the PON communication module, wherein N and M1 are natural numbers greater than 1 respectively. 3. The optical network device according to claim 1, wherein the user-side interface module comprises N Ethernet interfaces and M2 2-core digital broadband power supply carrier interfaces, wherein N and M2 are respectively greater than 1 natural number, and the conversion processing module includes: The broadband carrier unit is connected to the PON communication module through the RGMII interface, and is used to demodulate the broadband carrier signal input by each 2-core digital broadband power supply carrier interface, and modulate the signal input by the PON communication module into a broadband carrier signal ; The power supply unit is used to provide 12V DC voltage for the broadband carrier unit. 4. The optical network device according to claim 1, wherein the user-side interface module comprises N Ethernet interfaces and M3 two- or four-wire audio analog intercom interfaces, wherein N and M3 are respectively A natural number greater than 1, and the conversion processing module includes an MCU and an audio codec unit connected to the MCU. 5. The optical network device according to claim 1, wherein the user-side interface module includes N Ethernet interfaces and M4 audio and video analog intercom interfaces, wherein N and M4 are respectively natural numbers greater than 1 , Moreover, the conversion processing module includes: an MCU and an audio decoding unit, a video decoding unit and an RS485 extension unit respectively connected to the MCU. 6. The optical network device according to claim 1, wherein the user-side interface module includes N Ethernet interfaces and M5 half-digital intercom interfaces, wherein N and M5 are respectively natural numbers greater than 1, Moreover, the conversion processing module includes: an MCU and a bus expansion unit connected to the MCU. 7. The optical network device according to claim 1, wherein the user-side interface module includes N Ethernet interfaces, M6 switch input and output interfaces and M7 analog input and output interfaces, wherein, N, M6 and M7 are respectively natural numbers greater than 1, and the conversion processing module includes: MCU; A relay output unit connected to M6 digital input and output interfaces and the MCU respectively; A DC analog output unit connected to the M7 analog input and output interfaces and the MCU respectively. 8. The optical network device according to claim 1, wherein the user-side interface module comprises N Ethernet interfaces, M8 analog video interfaces and M9 RS485 interfaces, wherein N, M8, and M9 are respectively A natural number greater than 1, and the conversion processing module includes a video coding unit. 9. The optical network device according to claim 1, wherein the user-side interface module includes N Ethernet interfaces and M10 video interfaces, wherein N and M10 are respectively natural numbers greater than 1, and the The conversion processing module includes a video decoding unit. 10. The optical network device according to claim 1, further comprising an AP access module coupled to the PON communication module. 11. The optical network device according to claim 1, wherein the Ethernet interface is an Ethernet interface supporting PoE power supply. 12. An intelligent building optical network system, characterized in that it comprises: A plurality of optical network devices according to any one of claims 1-11 arranged on the user side; The optical line terminal arranged in the control center is used to connect with the optical network device through the passive optical distribution network.