CN201194418Y - Wireless automatic switching device for telephone and building intercom apparatus - Google Patents
Wireless automatic switching device for telephone and building intercom apparatus Download PDFInfo
- Publication number
- CN201194418Y CN201194418Y CNU2007200573723U CN200720057372U CN201194418Y CN 201194418 Y CN201194418 Y CN 201194418Y CN U2007200573723 U CNU2007200573723 U CN U2007200573723U CN 200720057372 U CN200720057372 U CN 200720057372U CN 201194418 Y CN201194418 Y CN 201194418Y
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- circuit
- access terminal
- wireless access
- building talkback
- telephone
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Abstract
A telephone equipment and wireless automatic switcher of building intercom device, including a door phone and an electric control lock, and including a building intercom wireless access terminal connected with the door phone. The building intercom wireless access terminal is communicated with a phone equipment wireless access terminal through a radio signal. The phone equipment wireless access terminal is installed in the room. A phone exterior line is connected with a phone exterior line interface of the phone equipment wireless access terminal. A family phone is accesses into a phone equipment interface of the phone equipment wireless access terminal. This utility model is able to more conveniently access the family fixed phone into the building intercom system without limiting by line; and the access mode is reasonable. It saves costs that one phone equipment and wireless automatic switcher of building intercom device can access multiple phones so as to extend multiple intercom operational terminals. The phone in each room can be utilized to realize the building intercom function and the usage is more convenient. The movable intercom function can be realized through directly utilizing the existed cordless telephone; and the usage and operational range of user are increased. The usage of original indoor telephone extension cannot be affected when used with the original indoor telephone extension in parallel.
Description
Technical field
The utility model relates to a kind of automatic switchover device, particularly a kind of telephone set and the wireless automatic switchover device of building talkback device.
Background technology
At present, the building talkback device adopts fixed installation mostly.Indoor unit generally is contained in the room, all to go to answer and open the door when having the guest visiting to hard-wired place at every turn, very inconvenient, particularly more in the room, seem more inconvenient in the time of local big or duplex, the mode that present user generally takes to adorn several indoor units more solves this problem, but can increase the quantity of wiring and extension set so again, and device cost and engineering cost increase more.Existing telephone set and building talkback device automatic switchover device building talkback insert and the phone access is made in a machine the inside, and the routing path of telephone wire is often different with the routing path of building talkback, and it is not too convenient therefore will inserting a machine to two-route wire.
The utility model content
The purpose of this utility model is to provide a kind of circuit reasonable, easy to use, provides cost savings, can be easily with the telephone set and the wireless automatic switchover device of building talkback device of family expenses landline telephone wireless access building conversational system.
The purpose of this utility model can reach by following measure: a kind of telephone set and the wireless automatic switchover device of building talkback device, comprise doorway machine, electric control lock, it is characterized in that: also be provided with the building talkback wireless access terminal that is connected with doorway machine, the building talkback wireless access terminal is by radiofrequency signal and the communication of telephone set wireless access terminal, the telephone set wireless access terminal is loaded on indoor, outside line is connected with the outside line interface of telephone set wireless access terminal, and home telephone inserts the telephone interface of telephone set wireless access terminal.
The purpose of this utility model can also reach by following measure: the building talkback wireless access terminal comprises control unit, receiving demodulation circuit, modulation transmitter, audio amplifier circuit, the audio frequency match circuit, the building talkback state control signal detects and the generation circuit, the building conversational system interface, duplexer, control unit receives the demodulated digital signal of sending from receiving demodulation circuit, and handle, the digital signal that coding will send is sent into modulation transmitter and is sent, reception detects and takes place the building talkback state control signal that circuit brings and handle from the building talkback state control signal, control the state of building conversational system by state control signal detection of control building talkback and generation breadboardin building talkback state control signal, receiving demodulation circuit receives modulation signal, amplify through high frequency, frequency conversion, intermediate frequency amplifies, after frequency discrimination and low frequency amplify, the output two paths of signals, one tunnel audio signal input audio power amplifier circuit, another road signal Input Control Element, modulation transmitter has the two-way input, one way word signal input part connects control unit, another road audio signal input is sent here by the audio frequency pre-amplification circuit, two paths of signals outputs to duplexer after ovennodulation is amplified, audio amplifier circuit will be from outputing to the tone frequency channel wire of building talkback circuit after the audio signal of receiving demodulation circuit input is carried out power amplification, the audio frequency match circuit is adjusted to the amplitude that is fit to the modulation transmitter modulation with the audio signal of bringing on the tone frequency channel wire and is sent into modulation transmitter, calling on detection of building talkback state control signal and the generation electric circuit inspection building conversational system holding wire, cancellation, off-hook, on-hook control signal and the signal that converts monolithic function identification in the control unit to are sent into single-chip microcomputer, the calling that single-chip microcomputer is brought, off-hook, on-hook, the control signal of unblanking converts the standard signal of building conversational system to and delivers on the holding wire, and the building conversational system interface is with the tone frequency channel wire of building talkback, control line, data wire inserts the building talkback wireless access terminal.Input at control unit also is connected with building talkback address setting circuit.The telephone set wireless access terminal comprises control unit, receiving demodulation circuit, modulation transmitter, the audio mix circuit, phone ringing-current generation circuit, the telephone set power supply circuits, the dtmf signal testing circuit, the telephone state testing circuit, building talkback and outside line commutation circuit, telephone interface, duplexer, the outside line interface, the letter that the building talkback wireless access terminal is sent here is the antenna through the telephone set wireless access terminal, duplexer arrives receiving demodulation circuit, deliver to control unit by receiving conciliation circuit output digital signal, after control unit is handled, detect on the telephone wire voltage and have or not the phone ringing-current by the telephone state testing circuit, when detecting phone ringing-current or telephone set and be in off hook state, control unit coding busy signal is sent into modulation transmitter and is sent, as when not having phone ringing-current and telephone set and being in hook state, control unit control building talkback and outside line commutation circuit disconnect answer the call from outside line, insert full talk circuit, by the telephone set power supply circuits is the teleset line power supply, control unit control phone ringing-current generation circuit produces the phone ringing-current and sends into telephone set, the control ringing, the not busy signal of encoding is simultaneously delivered to modulation transmitter and is sent, and enter talking state for the audio mix power on circuitry, during conversing, the dtmf signal that control unit sends by dtmf signal testing circuit monitoring telephone set, being required to be the visitor as the user opens the door, can operate telephone keypad and send corresponding D TMF signal, send unlocking signal to modulation transmitter by control unit, after ovennodulation, send to the building talkback wireless access terminal.The exportable signal controlling load circuit of control unit keeps outside line not break, then telephone set is inserted the building talkback circuit, the coding off hook signal is sent into modulation transmitter, and send to the building talkback wireless access terminal, directly enter the building talkback talking state, after building talkback finishes, by the operation telephone keypad, to go back to outside line with dtmf signal notice control unit, control unit discharges building talkback and outside line commutation circuit, telephone set is taken back outside line again, and load circuit is disconnected from telephone wire.
The utility model has following advantage compared to existing technology:
1. can more easily the family expenses fixed line be inserted building conversational system, not be subjected to the restriction of circuit, access way is reasonable.
2. can insert several phones by a telephone set and the wireless automatic switchover device of building talkback device, expand several intercommunication operating terminals, save cost.
3. can utilize the phone in each room to finish the building talkback function, use more convenient.
4. can directly finish mobile intercommunication function with existing cordless telephone, it is big that user's use and opereating specification become.
5. use with original indoor unit is parallel, do not influence the use of original indoor unit.
Description of drawings
Fig. 1 is the utility model system principle block diagram;
Fig. 2 is the utility model building talkback wireless access terminal circuit block diagram;
Fig. 3 is the circuit block diagram of the utility model telephone set wireless access terminal.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):
With reference to Fig. 1, the utility model comprises building talkback wireless access terminal 1, telephone set wireless access terminal 2, doorway machine 3, electric control lock 4 etc.Building talkback doorway machine 3 is contained in front door, with the indoor unit wired connection, when building talkback wireless access terminal 1 is installed, with the audio signal wire of doorway machine 3, intercommunication control signal wire by the building conversational system interface insert building talkback wireless access terminal 1, can be directly by building talkback wireless access terminal 1 replacement indoor unit; Also can keep original indoor unit, will be original indoor in extension set and building talkback wireless access terminal 1 and connecing get final product; Building talkback wireless access terminal 1 is connected with telephone set wireless access terminal 2 by radiofrequency signal; Telephone set wireless access terminal 2 can be contained in the indoor place that telephone connection is arranged arbitrarily, and outside line inserts 2 outside line interface of telephone set wireless access terminal, and home telephone 5 inserts the telephone interface that telephone sets access terminal.Before using building talkback wireless access terminal 1 and telephone set wireless access terminal 2 are carried out sign indicating number, code value is existed in the electricity erasable memorizer in the control unit separately.During telephone set wireless access terminal 2 holding states, telephone set and outside line are straight-through.
With reference to Fig. 2, building talkback wireless access terminal 1 comprises control unit 101, receiving demodulation circuit 102, modulation transmitter 103, audio amplifier circuit 104, audio frequency match circuit 105, the detection of building talkback state control signal and circuit 106, building conversational system interface 107, duplexer 108, building talkback address setting circuit 109 etc. takes place.Control unit 101 is as the center control section of whole building talkback wireless access terminal 1, form by single-chip microcomputer, electricity erasable memorizer, SCM peripheral circuit and control circuit, its function comprises the demodulated digital signal that reception receiving demodulation circuit 102 sends by digital signal output end, and handles; The digital signal that coding will send is sent into the digital signal input end of modulation transmitter 103, sends; Receive that 106 building talkback state control signals detect and the building talkback state control signal that circuit 106 brings takes place and handle; Control the state of building conversational system by state control signal detection of control building talkback and generation circuit 106 simulation building talkback state control signals; Storage building talkback wireless access terminal 1 address code and telephone set wireless access terminal 2 address codes.Receiving demodulation circuit 102 receives modulation signal, after amplifying through high frequency amplification, frequency conversion, intermediate frequency amplification, frequency discrimination and low frequency, and output two paths of signals, one tunnel audio signal input audio power amplifier circuit, 104, one way word signals input single-chip microcomputer.Modulation transmitter 103 has the two-way input, and a way word signal input part connects single-chip microcomputer, produces the digital signal input that needs transmission, one road audio signal input end, the audio signal that input is brought by audio frequency match circuit 105 by single-chip microcomputer; Two paths of signals outputs to duplexer 108 after ovennodulation is amplified.Audio amplifier circuit 104 will carry out the tone frequency channel wire that power amplification outputs to the building talkback circuit from the audio signal of receiving demodulation circuit 102 inputs.The audio signal of bringing on the tone frequency channel wire of audio frequency match circuit 105 with the building talkback circuit is adjusted to the audio signal input end that the amplitude that is fit to modulation transmitter 103 modulation is sent into modulation transmitter 103.The signal that the building talkback state control signal detected and took place control signal such as calling on the holding wire that circuit 106 detects the building conversational system service wires, cancellation, off-hook, on-hook and converts the identification of monolithic function to is sent into single-chip microcomputer and is used for single-chip microcomputer; Calling, off-hook, the on-hook that single-chip microcomputer is brought, conversion of signals such as unblank become the standard signal of building conversational system to deliver on the holding wire of building conversational system service wire.Building conversational system interface 107 inserts the building talkback wireless access terminal with tone frequency channel wire, control line, the data wire of building talkback.
With reference to Fig. 3, telephone set wireless access terminal 2 comprises control unit 201, receiving demodulation circuit 202, modulation transmitter 203, audio mix circuit 204, phone ringing-current generation circuit 205, telephone set power supply circuits 206, dtmf signal testing circuit 207, telephone state testing circuit 208, building talkback and outside line commutation circuit 209, telephone interface 210, duplexer 211, outside line interface 212, load circuit 214 etc.
The working method of telephone set and the wireless automatic switchover device of building talkback device is as follows:
When detecting and take place the call signal that circuit 106 detects doorway machine by the building talkback state control signal after, from electricity erasable memorizer, reads the control unit 101 of building talkback wireless access terminal the address code of telephone set wireless access terminal, the data input pin of modulation transmitter 103 will be delivered to behind call command and the geocoding, signal after the modulation amplifies through filtering, deliver to duplexer 108, go out via antenna transmission.
This signal is through the antenna of telephone set wireless access terminal 2, duplexer 211 arrives receiving demodulation circuit 202, through demodulation by filter, restore digital signal, deliver to control unit 201 by receiving demodulation circuit 202 digital signal output ends, after single-chip microcomputer in the control unit 201 receives this order, the address of depositing in address code in this order and the electricity erasable memorizer is compared, as mail returned on ground of incorrect address, just do not handle, otherwise just detect on the telephone wires voltage and have or not the phone ringing-current (to be in hook state as telephone set by telephone state testing circuit 208, it then on the telephone wire high voltage about 50V, as be in off hook state, then on the telephone wire low-voltage about 5V), when detecting phone ringing-current or telephone set and be in off hook state, control unit 201 coding busy signals are sent into modulation transmitter 203 data input pins and are sent; As when not having phone ringing-current and telephone set and being in hook state, control unit 201 control building talkbacks and outside line commutation circuit 209 disconnect answer the call from outside line, insert full talk circuit, be the teleset line power supply by telephone set power supply circuits 206, control unit 201 control phone ringing-current generation circuit 205 produce the phone ringing-current and send into telephone set, the control ringing, the not busy signal of encoding is simultaneously sent into modulation transmitter 203 data input pins and is sent.During this time as receive that the cancelling signal of building talkback wireless access terminal then gets back to holding state in the telephone set wireless access terminal.
Be in not busy state as telephone set, the control unit 201 of telephone set wireless access terminal is by the dislodging machine state of telephone state testing circuit 208 monitoring telephone sets, after detecting the telephone set off-hook, the coding off hook signal is sent into modulation transmitter 203 data input pins and is sent to building talkback wireless access terminal 1, power on for audio mix circuit 204 and enter talking state, during conversing, control unit 201 is monitored the dtmf signal that telephone sets send by dtmf signal testing circuit 207, and converts dtmf signal to single-chip microcomputer discernible digital signal.Need open the door for the visitor as the user, can operate telephone keypad and send corresponding D TMF signal, after control unit 201 receives the coding of dtmf signal, with fixing unlocking signal encoding ratio, meet and just send unlocking signal to modulation transmitter 203 data input pins, after ovennodulation, send to the building talkback wireless access terminal, after detecting the telephone set on-hook signal, again on-hook signal is sent to the building talkback wireless access terminal, discharge building talkback and outside line commutation circuit 209 simultaneously, telephone set is taken back outside line again, and the telephone set wireless access terminal enters holding state.
When telephone set is in talking state, after the user hears that the tinkle of bells of indoor unit is reminded, can select on-hook, after the control unit 201 of telephone set wireless access terminal detects the telephone set on-hook by telephone state testing circuit 208, control building talkback and outside line commutation circuit 209 disconnect answer the call from outside line, insert full talk circuit, be the teleset line power supply by telephone set power supply circuits 206, control unit 201 control phone ringing-current generation circuit 205 produce the phone ringing-current and send into telephone set, the control ringing, the not busy signal of encoding is simultaneously sent into modulation transmitter 203 data input pins and is sent, and enters the handling process that telephone set is in not busy state.The user also can select to hang under the situation of outside line, the thing of handling building talkback earlier goes back to outside line again and continues conversation, concrete processing procedure is as follows: by the operation telephone keypad, control unit 201 with dtmf signal notice telephone set wireless access terminal will carry out aforesaid operations, after control unit 201 is received order, the identical load circuit 214 of internal resistance when control is with the telephone set off hook state earlier hooks outside line, keep outside line not break, then telephone set is inserted the building talkback circuit, the coding off hook signal is sent into modulation transmitter 203 data input pins and is sent to the building talkback wireless access terminal, directly enters the building talkback talking state.Handle building talkback afterwards, by the operation telephone keypad, control unit 201 with dtmf signal notice telephone set wireless access terminal will go back to outside line, the control unit 201 of telephone set wireless access terminal discharges building talkback and outside line commutation circuit 209, telephone set is taken back outside line again, and load circuit 214 is disconnected from telephone wire.The off-hook order of telephone set wireless access terminal is waited in the building talkback wireless access terminal after sending call command.When receiving the off hook signal of telephone set wireless access terminal, control unit 101 control building talkback state control signals detect and circuit 106 take place off hook signal is sent to doorway machine 3, connect voice-grade channel, the audio signal process audio frequency match circuit 105 that doorway machine is sent up is adjusted to signal and is sent to the telephone set wireless access terminal after the amplitude that is fit to modulation transmitter 103 modulation is sent into the audio signal input end process filtering modulation amplification of modulation transmitter 103, send into audio amplifier circuit 104 by the audio signal output mouth after audio modulation signal process receiving demodulation circuit 102 demodulation that the telephone set wireless access terminal is brought, after amplifying, deliver to doorway machine.What the telephone set wireless access terminal sent during this time unblanks and on-hook signal, and control unit 101 control building talkback state control signals detect and circuit 106 takes place it is dealt into doorway machine.Calling that doorway machine sends over and cancelling signal are also detected by the building talkback state control signal and take place to convert the discernible signal of single-chip microcomputer to after circuit 106 detects sends into single-chip microcomputer.
In addition, the telephone set that is connected to the telephone interface 210 of telephone set wireless access terminal can utilize the operation telephone keypad to send dtmf signal to control telephone set and carry out active communication with the wireless automatic switchover device of building talkback device and other use terminals of building conversational system.
Like this, the utility model can be finished called, caller, conversation, the unlocking function of building conversational system by family expenses fixed line telephone set.
If the building talkback extension set is a decoding extension set in the bus system, can in the building talkback wireless access terminal, add building talkback address setting circuit 110, the address of indoor unit is input to single-chip microcomputer, handle by single-chip microcomputer.
If add telephone dialer circuit in the telephone set wireless access terminal, and building talkback and outside line commutation circuit 209 made and can tripartitely switch arbitrarily, building conversational system can also be dialed outside line, promptly when indoor ring unanswered, by the predefined telephone number of telephone network calling party (such as user's mobile phone), connect this phone, the user can converse by the visitor at this phone and place, doorway or the keeper at supervisor place, and can send dtmf signal by the operation telephone keypad and come remote-control unlocking.
Claims (5)
1. telephone set and the wireless automatic switchover device of building talkback device, comprise doorway machine (3), electric control lock (4), it is characterized in that: also be provided with the building talkback wireless access terminal (1) that is connected with doorway machine (3), building talkback wireless access terminal (1) is by radiofrequency signal and telephone set wireless access terminal (2) communication, telephone set wireless access terminal (2) is loaded on indoor, outside line is connected with the outside line interface of telephone set wireless access terminal (2), and home telephone (5) inserts the telephone interface of telephone set wireless access terminal (2).
2. a kind of telephone set according to claim 1 and the wireless automatic switchover device of building talkback device, it is characterized in that: building talkback wireless access terminal (1) comprises control unit (101), receiving demodulation circuit (102), modulation transmitter (103), audio amplifier circuit (104), audio frequency match circuit (105), the building talkback state control signal detects and generation circuit (106), building conversational system interface (107), duplexer (108), control unit (101) receives the demodulated digital signal of sending from receiving demodulation circuit (102), its output is connected with modulation transmitter (103), the building talkback state control signal detects and circuit (106) takes place and is connected with control unit (101), receiving demodulation circuit (102) receives modulation signal, its output one tunnel is connected with audio power amplifier circuit (104), another road is connected with control unit (101), the input of modulation transmitter (103), one the tunnel is connected with control unit (101), another road is connected with audio frequency pre-amplification circuit (105), the output of modulation transmitter (103) is connected with duplexer (108), the input of audio amplifier circuit (104) is connected with receiving demodulation circuit (102), its output is connected with building conversational system interface (107), the input of audio frequency match circuit (105) is connected with building conversational system interface (107), its output is connected with system radiating circuit (103), the building talkback state control signal detects and circuit (106) takes place and is connected with building conversational system interface (107), and building conversational system interface (107) is with the tone frequency channel wire of building talkback, control line, data wire inserts building talkback wireless access terminal (1).
3. a kind of telephone set according to claim 2 and the wireless automatic switchover device of building talkback device is characterized in that: the input at control unit (101) also is connected with building talkback address setting circuit (109).
4. a kind of telephone set according to claim 1 and the wireless automatic switchover device of building talkback device, it is characterized in that: telephone set wireless access terminal (2) comprise control unit (201), receiving demodulation circuit (202), modulation transmitter (203), audio mix circuit (204), phone ringing-current generation circuit (205), telephone set power supply circuits (206), dtmf signal testing circuit (207), telephone state testing circuit (208), building talkback and outside line commutation circuit (209), telephone interface (210), duplexer (211), outside line interface (212), the letter that building talkback wireless access terminal (1) is sent here is the antenna through telephone set wireless access terminal (2), duplexer (211) arrives receiving demodulation circuit (202), receiving the output of reconciling circuit (202) is connected with control unit (201), the input of control unit (201) also is connected with dtmf signal testing circuit (207) and telephone state testing circuit (208) respectively, its output is connected with outside line commutation circuit (209) with modulation transmitter (203) and building talkback with phone ringing-current generation circuit (205) respectively, audio mix circuit (204) is connected with modulation transmitter (203), and telephone set power supply circuits (206) are connected with outside line commutation circuit (209) with building talkback.
5. according to claim 2 or 4 described telephone sets and the wireless automatic switchover device of building talkback device, it is characterized in that: control unit (201) also is connected with the output of load circuit (214), and the output of load circuit is connected with outside line interface (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200573723U CN201194418Y (en) | 2007-09-24 | 2007-09-24 | Wireless automatic switching device for telephone and building intercom apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200573723U CN201194418Y (en) | 2007-09-24 | 2007-09-24 | Wireless automatic switching device for telephone and building intercom apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201194418Y true CN201194418Y (en) | 2009-02-11 |
Family
ID=40393950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200573723U Expired - Fee Related CN201194418Y (en) | 2007-09-24 | 2007-09-24 | Wireless automatic switching device for telephone and building intercom apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201194418Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868838A (en) * | 2012-09-03 | 2013-01-09 | 万科思自控信息（中国）有限公司 | Gateway device capable of taking telephone as branch cell interphone and control method thereof |
| CN103731761A (en) * | 2012-10-12 | 2014-04-16 | 中国电信股份有限公司 | Method and system for building talkback |
| CN105933640A (en) * | 2016-06-23 | 2016-09-07 | 深圳市麦驰物联股份有限公司 | Upgrade method and system of building intercom system of old residential area based on wireless technique |
-
2007
- 2007-09-24 CN CNU2007200573723U patent/CN201194418Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868838A (en) * | 2012-09-03 | 2013-01-09 | 万科思自控信息（中国）有限公司 | Gateway device capable of taking telephone as branch cell interphone and control method thereof |
| CN103731761A (en) * | 2012-10-12 | 2014-04-16 | 中国电信股份有限公司 | Method and system for building talkback |
| CN105933640A (en) * | 2016-06-23 | 2016-09-07 | 深圳市麦驰物联股份有限公司 | Upgrade method and system of building intercom system of old residential area based on wireless technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20130924 |