CN2899296Y - Radio-service calling system - Google Patents
Radio-service calling system Download PDFInfo
- Publication number
- CN2899296Y CN2899296Y CNU2006200731811U CN200620073181U CN2899296Y CN 2899296 Y CN2899296 Y CN 2899296Y CN U2006200731811 U CNU2006200731811 U CN U2006200731811U CN 200620073181 U CN200620073181 U CN 200620073181U CN 2899296 Y CN2899296 Y CN 2899296Y
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- chip microcomputer
- receiver
- collector electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a radio-service calling system which comprises a receiver and transmitters quantified from one to sixteen; a pulse is generated by pressing a key on the transmitter, and is modulated into a high frequency radio signal by the inner circuit, and is transmitted by a antenna, the high frequency radio signal is received by the receiver, and is modulated, amplified and decoded, then the digital signal is supplied to a singlechip and is outputted after processing, the serial number of the transmitter to be used is displayed and notified by a sound. The utility model has the advantages of strong interference resistance capacity, simple structure, portability, easy operation and a favorable practicable value.
Description
Technical field
The utility model relates to a kind of portable mobile wireless service call system, is particularly useful for service locations such as entertainment, leisure food and drink, health care.
Background technology
At present, traditional service location guests such as entertainment, leisure food and drink, health care that are used for get in touch the mode that adopts manual calling or wireline call to attendant's calling, the drawback that this traditional mode exists is to influence guest activities, and judgement calling location error is big etc.
Summary of the invention
Technical problem: the purpose of this utility model provides a kind of simple in structure, easy to use, effective portable mobile wireless service call system.
Technical scheme: a kind of portable mobile wireless service call of the utility model system is made up of receiver and 1-16 transmitter, and the receiver main circuit is made up of 51 series monolithic systems, and expansion has 2272 modem chips, LED nixie display and acousto-optic circuit.Transmitter mainly is made up of 2262 integrated chips, and is connected with crystal oscillator, triode and antenna.2262 chip D0-D3 data terminal interfaces are connected to toggle switch SB1-SB4 and carry out digital coding, the A0-A7 end carries out geocoding, output VT interface is received the base stage of a triode VT1 by a resistance, be connected to crystal oscillator between base stage and the ground, collector electrode is received on the power supply VCC by an inductance coil L1, triode VT1 emitter is received ground GND by resistance, between collector electrode and emitter and a capacitor C 2, a capacitor C 3 in parallel between emitter institute connecting resistance and ground, receiver is that core is formed by single-chip microcomputer and 2272 chips, 2272 chips are connected together with single-chip microcomputer by the D0-D3 end, and the single-chip microcomputer expansion has LED display circuit LED1, LED2 and auditory tone cues electric circuit.Receive airborne device by loudspeaker LSP and the drive circuit formed by triode Q1, Q2, Q3, receiver power supply VCC is connected with dichromatic LED DT, connect the collector electrode of triode Q4 by resistance R 5, connect the base stage of triode Q5 by resistance R 7, light-emitting diode DT connects triode Q5 collector electrode by resistance R 6, be connected with voltage-stabiliser tube WG by resistance R 4, connect the base stage of triode Q4, the line under-voltage display circuit that Q5 forms.Transmitter with power connection, sends code signal by transmitter integrated circuits by button, and the modulation circuit of forming through crystal oscillator and triode is modulated into high-frequency signal with signal, by built-in aerial signal is sent again.Receiver receives the high frequency call signal and at first enters the amplification of one-level high frequency, carry out demodulation to modulation-demodulation circuit then, code signal after the demodulation enters first order operational amplifier and amplifies, by the second level operational amplifier signal is carried out shaping, import 2272 decoders, whether address code confirms signal in the native system, send call signal to single-chip microcomputer with the 0000-1111 binary form then, provide four figures according to coded signal to single-chip microcomputer, it is calling party's position signalling, single-chip microcomputer obtains signal after internal processes is handled, and audio amplifier circuit is given in the output sound cue on the one hand, amplifies through two-stage to make loudspeaker send prompt tone; The single-chip microcomputer outputting data signals is given the LED nixie display on the other hand, shows 1-16 calling party position by charactron.System and device has the line under-voltage cue circuit, controlled by two triodes by double color luminotron, supply voltage just often, the voltage-stabiliser tube conducting, to open green light bright for the triode of control green light, when supply voltage is lower than a certain value, voltage-stabiliser tube ends, and triode is closed, the conducting of another triode, it is bright that the triode of control red light is opened red light, points out this to charge.
Technique effect: a kind of portable mobile wireless service call of the utility model system, be best suited in entertainment, the leisure food and drink, service locations such as health care, transmitter and receiver is can carry or fixing radio signal machine, utilizing wireless mode that the attendant is called out puts in place, by one group of transmitter and a receiver are set, the guest can be when needs be served, at any time press the button of transmitting set, the reception function that the attendant carries receives transmitter numbering and acousto-optic call signal at once, the attendant can in time be arrived call out the place, for the guest provides service, it is simple in structure, easy to use, effective, has practicality widely.
Description of drawings
Fig. 1 is the utility model system principle diagram.
Fig. 2 is the receiver circuit schematic diagram.
Fig. 3 is the transmitter circuitry schematic diagram.
Fig. 4 is playback and under-voltage display circuit.
Embodiment
Below in conjunction with an embodiment in the accompanying drawing utility model is further described:
The utility model relates to the unidirectional multiple signals transmission system of a kind of radio, form by receiver and 1-16 transmitter, the receiver main circuit is made up of 51 series monolithic systems, device has 2272 modem chips, single-chip microcomputer links to each other with triode Q4, Q5 by interface, signal is selected in position as light-emitting diode display, and the section of double figures sign indicating number display is selected signal, from the delivery outlet of modulator-demodulator 2272; Another interface of single-chip microcomputer links to each other by the standard amplifying circuit that three triode Q1, Q2, Q3 form, and the output of amplifying circuit is received on the drive end of a loudspeaker LSP.Transmitter is made up of integrated circuit 2262, and 2262 chip D0-D3 data terminal interfaces are connected to toggle switch SB1-SB4 and carry out digital coding, and A0-A7 holds into geocoding, and is connected with crystal oscillator, triode and antenna.Transmitter with power connection, sends code signal by the emission integrated circuit by button, and the modulation circuit of forming through crystal oscillator and triode is modulated into high-frequency signal with code signal, by built-in aerial signal is sent again.Receiver receives the high frequency call signal and at first enters the amplification of one-level high frequency, carry out demodulation to modulation-demodulation circuit then, code signal after the demodulation enters first order operational amplifier and amplifies, by the second level operational amplifier signal is carried out shaping, import a decoder, whether address code confirms signal in the native system, send call signal to single-chip microcomputer with the 0000-1111 binary form then, provide four figures according to coded signal to single-chip microcomputer, it is calling party's position signalling, single-chip microcomputer obtains signal after internal processes is handled, and audio amplifier circuit is given in the output sound cue on the one hand, amplifies through two-stage to make loudspeaker send prompt tone; The single-chip microcomputer outputting data signals is given nixie display on the other hand, shows 1-16 calling party position by charactron.
The no response of native system outcall native system utilizes the address code end of integrated circuit 2262/2272 to encode.Call out digit separator in the system, utilize the unified combination of two classes coding of encoding of the data terminal of integrated circuit 2262/2272, send simultaneously, receive, decoding, data terminal is only distinguished the digital signal input single-chip microcomputer of calling out the position in the decoding back, after handling by single-chip microcomputer, and output audio cue and charactron control signal.
The line under-voltage cue circuit: power supply VCC is connected with light-emitting diode DT, connect the collector electrode of triode Q4 by resistance R 5, connect the base stage of triode Q5 by resistance R 7, light-emitting diode DT connects triode Q5 collector electrode by resistance R 6, be connected with voltage-stabiliser tube WG by resistance R 4, connect the base stage of triode Q4, the line under-voltage display circuit that Q5 forms.Altogether the anode double color luminotron is controlled by two triodes, supply voltage just often, the voltage-stabiliser tube of 5.3V has electric current, it is bright that the triode of control green light is opened green light, and supply voltage is lower than at 5.3 o'clock, and this triode is closed, it is bright that the triode of control red light is opened red light, should charge.
Simple to operate: transmitter has only a button, touches button, finishes all operations.Receiver has two buttons, and one is mains switch, and it is bright to press indicator light, and machine is the stand-by operation state, and another is that the upset button is a no lock-switch, and when pressing, this calls out position and last call bit digital Alternation Display, and receiver has one of charging socket.The machine volume is small and exquisite, is easy to carry, and also can fix.
Claims (3)
1. portable mobile wireless service call system, it is characterized in that: form by one group of transmitter 1-16 and receiver, transmitter mainly is made up of 2262 integrated chips, 2262 chip D0-D3 data terminal interfaces are connected to toggle switch SB1-SB4 and carry out digital coding, the A0-A7 end carries out geocoding, output VT interface is received the base stage of a triode VT1 by a resistance, be connected to crystal oscillator between base stage and the ground, triode VT1 collector electrode is received on the power supply VCC by an inductance coil L1, emitter is received ground GND by resistance, between collector electrode and emitter and a capacitor C 2, a capacitor C 3 in parallel between emitter institute connecting resistance and ground, receiver is that core is formed by single-chip microcomputer and 2272 chips, 2272 chips are connected together with single-chip microcomputer by the D0-D3 end, and the single-chip microcomputer expansion has LED display circuit LED1, LED2 and auditory tone cues electric circuit.
2. a kind of portable mobile wireless service call according to claim 1 system, it is characterized in that: used single-chip microcomputer is 51 series of products in the described receiver, receives airborne device by loudspeaker LSP and the drive circuit be made up of triode Q1, Q2, Q3.
3. a kind of portable mobile wireless service call according to claim 1 system, it is characterized in that: described receiver power supply VCC is connected with dichromatic LED DT, connect the collector electrode of triode Q4 by resistance R 5, connect the base stage of triode Q5 by resistance R 7, light-emitting diode DT connects triode Q5 collector electrode by resistance R 6, be connected with voltage-stabiliser tube WG by resistance R 4, connect the base stage of triode Q4, the line under-voltage display circuit that Q5 forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200731811U CN2899296Y (en) | 2006-05-09 | 2006-05-09 | Radio-service calling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200731811U CN2899296Y (en) | 2006-05-09 | 2006-05-09 | Radio-service calling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2899296Y true CN2899296Y (en) | 2007-05-09 |
Family
ID=38074627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200731811U Expired - Fee Related CN2899296Y (en) | 2006-05-09 | 2006-05-09 | Radio-service calling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2899296Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833834A (en) * | 2010-03-26 | 2010-09-15 | 医惠科技(苏州)有限公司 | Wireless calling device |
-
2006
- 2006-05-09 CN CNU2006200731811U patent/CN2899296Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833834A (en) * | 2010-03-26 | 2010-09-15 | 医惠科技(苏州)有限公司 | Wireless calling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108183743B (en) | Beidou communication system for transmitting voice and pictures based on soft compression coding | |
| CN201985987U (en) | Mobile phone utilizing external part of audio output port to emit infrared | |
| CN202189417U (en) | Multifunctional wireless doorbell | |
| CN2899296Y (en) | Radio-service calling system | |
| CN106059866A (en) | Voice control system for wireless smart home | |
| CN201699839U (en) | Email arrival reminding circuit and remote control | |
| CN206564687U (en) | One kind interconnection smart home sound equipment | |
| CN202771698U (en) | Radio receiving and transmitting training device | |
| CN201037954Y (en) | Wireless digital regulator | |
| CN201454012U (en) | Electronic score indicator | |
| CN106981293A (en) | A kind of intelligent frequency modulation system for telecommunications | |
| CN100588214C (en) | Distance control radio remote controller for telephone | |
| CN2870327Y (en) | Telephone long-distance control wireless telecontroller | |
| TW200507472A (en) | Transmitters providing cycle encoded signals | |
| CN201438719U (en) | Circuit for call detecting and television with call reminder | |
| CN109615839A (en) | A kind of coding chip and remote control device of integrated key power supply | |
| CN207753705U (en) | Multimode terminal controller for broadcast singal transmission | |
| CN205263793U (en) | Wireless machine of ordering dishes | |
| CN217116091U (en) | Remote control doorbell WIFI repeater of butt joint thing networking | |
| CN209625367U (en) | A kind of wireless remote-control music door-bell generator | |
| CN209435389U (en) | A kind of UHF wireless data transmission microphone | |
| CN210201972U (en) | Low-power consumption intelligent visual doorbell | |
| CN215010218U (en) | Transmitter, receiver and off-position error indicating system | |
| CN2587111Y (en) | Wireless service calling system | |
| CN2544483Y (en) | Color TV set with radio receiver and amplifier function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |