CN1388689A - Comprehensive household radio multimedia access equipment - Google Patents
Comprehensive household radio multimedia access equipment Download PDFInfo
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- CN1388689A CN1388689A CN 02137843 CN02137843A CN1388689A CN 1388689 A CN1388689 A CN 1388689A CN 02137843 CN02137843 CN 02137843 CN 02137843 A CN02137843 A CN 02137843A CN 1388689 A CN1388689 A CN 1388689A
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Abstract
The comprehensive household radio multimedia access equipment as one kind of household radio information transmitting equipment consists of RF module, base band module, embedded platform, outer network adapting card, telephone controller, LAN card and other network interface cards. The telephone controller has outer terminal connected to PSTN, LAN card has outer terminal connected to LAN and other other network interface cards have the outer terminal connected to OVDA; the input of the outer network adapting card is connected separately to the output of the telephone controller, LAN card and other network interface cards; the input of the base band module is connected to the output of outer network adapting card; the input of the RF module is connected to the output of the base band module and output connected to emitting antenna; the outer network adapting card is connected to inside unit via a 16-bit.
Description
One, technical field:
The present invention is a kind of wireless messages interconnecting device of family expenses, belongs to the technical field of zonule wireless communication networks device fabrication.
Two, background technology:
The development of information industry makes people more and more urgent to the requirement of household's IT application, various operators have also all aimed at family and the indoor information-based big market of using, in some residential quarters, the doorway that all kinds of cables relevant with each family life and line have been received every household.For example: " the family lineman's journey " that telecommunication department is promoted always and " the multi-thread engineering in a family " promoted now; " project of surfing the net " of network company; " the broadband engineering " of CNN; The talkback system of infrastructure management company; The network home appliance of household electrical appliances manufacturing company; Or the like.There are many cables and four, five terminal boxes in the doorway of a common family family, and also must have corresponding cable that these external networks are received family at home.In some offices, there is such situation equally.Various line and terminal box have brought great inconvenience for people's life, and these " services " of delivering to the entrance often make resident family's wall of holing brokenly of having to.People urgently expect to have a kind of effective and efficient manner to substitute numerous cable and terminal boxes, and easily the outside network of visit is realized resource-sharing.
On the other hand, WLAN (wireless local area network) (the WLAN of Ti Chuing in recent years, Wireless Local Area Network) and Wireless Personal Network (WPAN, Wireless Personal Area Network) zonule wireless multimedia communication standard such as, adopt spread spectrum-CDMA (Code Division Multiple Access), have very strong multiple access ability and antijamming capability.The embedded radio electrical chip of following with it and giving birth to, to be used in a large number in family expenses equipment with its cheapness, low-power consumption, integrated level advantages of higher, just as present microprocessor and common IC chip, though to being in usefulness, but people and do not know or and do not mind its existence, each family may use tens of even how such embedded radio electrical chip from now on, and all electronic information, electric equipment are constituted wireless network, and it is used may be omnipresent.
In all kinds of technology of Wireless Personal Network, bluetooth (Bluetooth) technology is rather noticeable, with local network (PSTN net or Internet and other external network) intercommunication and to constitute mobile ad-hoc network (Ad hoc) be its important application.Comprehensive household radio multimedia access equipment based on Bluetooth technology can make Bluetooth terminal equipment visit external network wirelessly, and can form a wireless network between the indoor equipment.It provides great convenience for these terminal equipments dynamically insert traditional computer and telephone network and other extranets, also provides a kind of cheapness, solution efficiently for interim networking, resource-sharing between terminal equipment.
Can realize saving line between indoor each equipment by above-mentioned technology, these equipment are visited external network by wireless mode, but how to be linked into the support that external network must have access device, this access device is a hinge indoor and that the external world is connected, only needs to use such equipment just can accomplish the mutual of indoor and the external world.
Three, summary of the invention:
(1) goal of the invention
The purpose of this invention is to provide a kind of comprehensive household radio multimedia access equipment, make some indoor application occasions such as family or office only need an access device just can realize indoor all have the service that the equipment of information transfer capability is enjoyed external network, and can visit extraneous network simultaneously by a plurality of equipment
(2) technical scheme
The present invention is a kind of comprehensive household radio multimedia access equipment, this equipment is by radio-frequency module, baseband module, embedded platform, the external network adapter, telephone controller, the local area network (LAN) network interface card, other network interface unit is formed, the outer termination PSTN of telephone controller, the outer termination LAN of local area network (LAN) network interface card, other speech and data networks of the outer termination of other network interface unit (OVDA), the input of the external network adapter controller of answering the call respectively, the local area network (LAN) network interface card, the output of other network interface unit, the input of baseband module connects the output of external network adapter by embedded platform, the output of the input termination baseband module of radio-frequency module, antenna is penetrated in the output sending and receiving of radio-frequency module.
Comprehensive household radio multimedia access equipment links to each other with extraneous PSTN, Internet and other voice/data network.When outside PSTN has the phone incoming call, the radio multimedium integrated access equipment can detect the dtmf signal of PSTN net by telephone controller, and give the external network adapter with this signal, application program encapsulates this signal according to corresponding wireless communication protocol after reading the adapter signal, send to indoor terminal equipment, inform that terminal has the phone incoming call, the packet that terminal equipment is sent here according to same Protocol Analysis access device, carry out corresponding operations such as ring, after the terminal use receives calls, set up voice link between access device and the terminal, voice transmit on this link, and the terminal use just can be with the PSTN user's communication like this.Equally when indoor terminal equipment needs outwards to breathe out, send the packet that encapsulated to access device, access device is analyzed this packet, and be construed to operations such as off-hook, dialing, send dtmf signaling by external network adapter control telephone controller to the PSTN net, connect with PSTN user, same, voice transmit on the voice link between access device and the terminal.
When indoor terminal equipment is wanted to visit Internet, at first send link setup request with access device by terminal equipment, after access device is accepted this request, promptly set up wireless transmission channel between terminal and the access device, access device has complete network configuration, it is the terminal of exterior I nternet, link to each other with Internet by netting twine, some information of Internet are just by the local area network (LAN) network interface card, and then give application program by the external network adapter, application program is packaged into corresponding packet according to corresponding wireless communication protocol with this information again and gives terminal equipment.Otherwise some information of terminal equipment are also delivered to exterior I nternet by access device.
Other voice/data network comprises intercom system, remote control doorbell etc., for the supporting use of access device, need integrated voice/data terminal, these terminals can be mobile phone, PDA, can also be special-purpose terminals.The signal of external network is delivered to indoor terminal by access device, makes people freely to receive these voice-and-data information Anywhere indoor, and is not subjected to the restriction in place.Same when people need communicate with the external world, such as the control doorbell, can control doorbell Anywhere indoor.Information interaction between terminal and the access device all is to carry out according to certain wireless communication protocol, by access device information is delivered to external network or is given terminal with external information.
Therefore, comprehensive household radio multimedia access equipment of the present invention has the function of wireless home network and wireless HUB concurrently.
(3) technique effect
This invention has following advantage:
1. make some indoor application occasions such as family or office only need an access device just can realize indoor all have the equipment of information transfer capability and interconnecting of outside diverse network and system;
2. indoor each equipment need not cable and connects, both can wireless networking work, and the service that can enjoy external network again;
3. access device can be placed on outdoors, and in the inlet chamber only is one ruler cun minimum wireless aerial, removes from making the room have to connect up and the hardship of finishing again because of following one by one various new services;
4. use " external network adapter " and " other network interface unit " that various external networks are transformed into the information format that meets used communication protocol, adaptability is strong;
5. when external network is changed or upgrade, only need to change the associated components of this access device, flexible;
6. by this access device, the equipment in the remote controlled family of user (such as household electrical appliance etc.);
7. can support a plurality of equipment to visit a plurality of external networks simultaneously, realize the function of point-to-multipoint, when a plurality of equipment insert, user's use be had no effect.
Four, description of drawings
Fig. 1 is the general structure schematic diagram of invention, wherein is made up of radio-frequency module 1, baseband module 2, embedded platform 3, external network adapter 4, telephone controller 5, local area network (LAN) network interface card 6, other network interface unit 7.
Fig. 2 is an electrical schematic diagram of the present invention.
Fig. 3 is the electrical schematic diagram of telephone controller of the present invention.
Embodiment
Each several part to Fig. 1 describes below.This equipment uses a cover base band and a radio circuit, and these two modules have mainly realized the function of wireless transmission, set up the wireless connections between access device and terminal and terminal and the terminal.Adopt U1 (model of Ericsson company is the module of ROK101007), this is the base band and the radio-frequency module of twin-core tablet mode, and its baseband chip is PMB99090, and radio frequency chip is PBA31301/3.During concrete enforcement, this equipment can be placed on the user outdoors, and have only in the antenna inlet chamber of one ruler cun very little (several centimetres).Built-in Linux operating system is adopted in this design, and as hardware platform, wireless communication protocol stack and upper application software operate on this platform with U2 (MotorolaCodeFire5272 microprocessor).Wireless communication protocol stack is the software stack of our independently developed protocol compliant standard, and the intercommunication of terminal and access device realizes by wireless communication protocol stack, and wireless communication protocol can be a wireless communication protocol among a small circle such as bluetooth, 802.11 etc.Protocol stack is resolved the packet receive, issues upper level applications again and carries out corresponding operation or some instructions of application program are packaged into protocol package, sends.Upper level applications is directly controlled the external network adapter and then is controlled corresponding network interface unit and is linked into external network, also can transmit the foundation of the data of external network to terminal and control voice link.The external network adapter is the hinge between embedded system and the external network interface card, plays effect adaptive and switching.Specifically see shown in Figure 2.The external network adapter links to each other with the GPIO mouth of embedded development platform, has used 16 pins of GPIO mouth, 8 parallel-by-bit data wires wherein, 5 bit address lines, 2 Bits Serial data wires, 1 interrupt line.8 parallel-by-bit data wires transmission data, 2 Bits Serial data wire control channels, 5 bit address lines transmit current address at the external interface card of working.When receiving external signal, the external network adapter can produce a hardware interrupts, (address wire has five can to read address on the address wire in interrupt handling routine, their different states have been represented different external interface cards, can connect 32 interface cards at most, these interface cards are inserted in respectively on the socket of standard 25 cores), thus know current any piece interface card in work, and then read the signaling of serial i/O or read 8 data on the data line.The external network adapter is made of U3, U4, and U3 U4 is that model is the bus transceiver of 74HC245, and they increase the driving force to outside interface card, play the effect of protection simultaneously.Use the external network adapter to upgrade to this access device easily, make it insert more external network, and when external network is changed, also only need circuit is done very little change.Each external network interface circuit directly links to each other with external network, receives external network data or voice, or data-voice is issued external network.Run on the data that application program on the embedded platform reads the GPIO mouth, or send corresponding information to the GPIO mouth.
The structured flowchart of telephone controller as shown in Figure 3.Wherein U5 is that model is the modem chip of CX88168, mainly to the data modem of transmission, the data after the modulation is sent or giving adapter after the data demodulates that receives from subscribers feeder.U6 is that the 74LS138 chip selection signal produces circuit, and 5 bit address signals are become chip selection signal, gives modulator-demodulator.U7 is the 74HC541 three-state transceiver, and it is in three-state at ordinary times, and generation interrupt signal and address signal are given single-chip microcomputer when phone ringing, and address signal provides the device address of work at present.U8 is a CX20463 line end chip, realizes conversion of two or four lines and waveform shaping.U9 is the CX20437 speech chip, realizes the function of voice transfer.U10 is an isolating transformer.The local area network (LAN) network interface card is the network interface card on CodeFire 5272 development platforms, and model is the LEVEL ONE LXT972LC of Intel Company.The interface circuit of other network interface unit such as family's video doorbell is made up of circuit such as level conversion, protective circuit, signaling identification, speech level conversions; voice need not pass through the external network adapter; but directly link to each other with base band, radio-frequency module, just some control signalings need to give GPIO mouth by the external network adapter through serial i/O.
If the radio frequency among Fig. 1, baseband module adopt bluetooth module, communication protocol is Bluetooth protocol, and the equipment of formation is bluetooth equipment.We are example with this equipment.
The comprehensive household radio multimedia access equipment whole system comprises terminal and access device two parts.Comprehensive household radio multimedia access equipment based on Bluetooth technology connects outside PSTN, Internet and other data or voice network, and other data or voice network comprise family's door supervisory control system, intercom system etc.Terminal all has Bluetooth function, can be data terminal (comprising computer, PDA etc.), also can be voice terminal (comprising phone, family's intercom etc.), can also be household electrical appliance.Terminal also can be formed wireless network by the service of comprehensive household radio multimedia access equipment use external network between the terminal, realizes resource-sharing.Comprehensive household radio multimedia access equipment has made full use of the function of the point-to-multipoint of bluetooth, can support maximum seven equipment to be connected to a plurality of external networks simultaneously.
By this access device, the user also can be from the equipment external network (PSTN, the Internet etc.) remote control home (such as household electrical appliance etc.).Can realize control by the PSTN net, the user at first must put through access device in the family at far-end, and then press telephone key corresponding to command adapted thereto, access device will convert the dtmf signal of receiving to the bluetooth signaling of man electric energy identification, send instruction to corresponding household electrical appliances, make it carry out corresponding operation.If realize control by INTERNET, the electrical equipment in the family is connected to the Internet by the access device with Bluetooth chip, becomes network home appliance.The user can pass through on computer, the mobile phone electrical equipment in the INTERNET network control system man at far-end, and he only needs the IP address of accesses network terminal, and promptly the may command household electrical appliances are carried out the operation that we want.Network home appliance also can send self-information to network on one's own initiative, reports current running status, can also obtain information from network on one's own initiative.The key that realizes this system is Bluetooth technology is applied in the embedded system.
Claims (3)
1, a kind of comprehensive household radio multimedia access equipment, it is characterized in that this equipment is by radio-frequency module (1), baseband module (2), embedded platform, (3), external network adapter (4), telephone controller (5), local area network (LAN) network interface card (6), other network interface unit (7) is formed, the outer termination PSTN of telephone controller (5), the outer termination LAN of local area network (LAN) network interface card (6), other speech and data networks of outer termination (OVDA) of other network interface unit (7), the input of external network adapter (4) controller (5) of answering the call respectively, local area network (LAN) network interface card (6), the output of other network interface unit (7), the input of baseband module (2) connects the output of external network adapter (4) by embedded platform (3), the output of the input termination baseband module (2) of radio-frequency module (1), antenna is penetrated in the output sending and receiving of radio-frequency module (1).
2, comprehensive household radio multimedia access equipment according to claim 1, it is characterized in that external network adapter (4) joins with telephone controller (5), local area network (LAN) network interface card (6), other network interface unit (7) respectively by 16 buses, external network adapter (4) joins by 8 buses and embedded platform (3), and embedded platform (3) joins by RS232 interface and baseband module (2).
3, comprehensive household radio multimedia access equipment according to claim 1 and 2, it is characterized in that telephone controller (5) is made up of monolithic modulation accent device U5, chip selection signal generation circuit U 6, ternary receipts generator U7, line end chip U8, speech chip U9, isolating transformer U10, wherein isolating transformer U10 joins with line end chip U8 and speech chip U9 respectively, and modem chip U5 produces circuit U 6 with line end chip U8, speech chip U9, chip selection signal respectively, three-state transceiver U7 joins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137843 CN1388689A (en) | 2002-06-25 | 2002-06-25 | Comprehensive household radio multimedia access equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02137843 CN1388689A (en) | 2002-06-25 | 2002-06-25 | Comprehensive household radio multimedia access equipment |
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| CN1388689A true CN1388689A (en) | 2003-01-01 |
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| CN 02137843 Pending CN1388689A (en) | 2002-06-25 | 2002-06-25 | Comprehensive household radio multimedia access equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686076A (en) * | 2013-11-26 | 2014-03-26 | 移康智能科技(上海)有限公司 | Wireless electronic door viewer system |
| CN114024787A (en) * | 2021-10-08 | 2022-02-08 | 中移（杭州）信息技术有限公司 | Remote control method, device, equipment and storage medium for smart home |
-
2002
- 2002-06-25 CN CN 02137843 patent/CN1388689A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103686076A (en) * | 2013-11-26 | 2014-03-26 | 移康智能科技(上海)有限公司 | Wireless electronic door viewer system |
| CN114024787A (en) * | 2021-10-08 | 2022-02-08 | 中移（杭州）信息技术有限公司 | Remote control method, device, equipment and storage medium for smart home |
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