CN101945164A

CN101945164A - 2.4 G wireless alarming telephone

Info

Publication number: CN101945164A
Application number: CN201010255790.XA
Authority: CN
Inventors: 范晓枫; 胡建春; 周伟强
Original assignee: JIANGSU ZHONGXUN DIGITAL ELECTRONIC CO Ltd
Current assignee: JIANGSU ZHONGXUN DIGITAL ELECTRONIC CO Ltd
Priority date: 2010-08-17
Filing date: 2010-08-17
Publication date: 2011-01-12
Anticipated expiration: 2030-08-17
Also published as: CN101945164B

Abstract

The invention discloses a 2.4G wireless alarming telephone, comprising a 2.4G wireless communication module. The 2.4G wireless communication module is in charge of communication with an MCU main control unit; and the periphery of the MCU main control unit is connected with a sensor wireless signal receiving module which is in charge of wireless communication with various sensors and transmits received information to the MCU main control unit for processing. The invention has the basic functions of the existing 2.4G wireless telephone, can receive alarming signals sent by an outer wireless infrared detector, a wireless magnetism, a wireless gas sensor, a wireless smoke detecting fire detector and other outer sensor probes, and can dial mobile phone numbers preset by a user or call a platform server for alarming through the 2.4 G wireless telephone.

Description

The wireless alarm telephone set of a kind of 2.4G

Technical field

The present invention relates to a kind of wireless alarm telephone set of a kind of 2.4G of and security alarm and one wireless of the burglar alarm field that is applicable to occasions such as family, enterprises and institutions based on 2.4G.

Background technology

Along with improving constantly of people's living standard, that increasing crowd begins to pay attention to is safe, comfortable, life idea easily.But meanwhile social structure and social security are all increasingly sophisticated, show that according to data the dwelling house theft crime rate of China is high, and robber's bluster very is rampant, and therefore, people more and more pay attention to the safety problem of family's lives and properties.So security protection must have new system, new method that corresponding solution can be provided.

The warning product category of existing market is a lot, but all fairly simple from function, only just uses as anti-theft alarming equipment, and user's acceptance is not high.Such guard against theft and alarm system does not only possess the speech communication function, do not possess functions such as Remote, wireless communication yet, along with improving constantly of people's living standard, the continuous development of society, technology, people are to better function, safeguard saferly, the information demand of novel intelligent domestic safety prevention system more easily is more urgent.The 2.4G cordless telephone is also constantly come into huge numbers of families simultaneously, the demand of comprehensive above technology and society security protection, and developing a kind of telephone set wireless based on 2.4G and security alarm and one becomes a kind of urgent demand.

Summary of the invention

Goal of the invention: technical problem to be solved by this invention is at the deficiencies in the prior art, and a kind of 2.4G is provided wireless alarm telephone set.

In order to solve the problems of the technologies described above, the invention discloses the wireless alarm telephone set of a kind of 2.4G, comprise that MCU Main Processing Unit is connected with 2.4G wireless communication module, conversation control module, power management module, keyboard input module in the MCU Main Processing Unit periphery; Described conversation control module also connects handfree circuit and handle speaking circuit respectively; Described 2.4G wireless communication module is connected speech processing circuit with conversation between the control module, described MCU Main Processing Unit also is connected with phone line path switching circuit and phone circuit signal deteching circuit, and described phone line path switching circuit also is connected with conversation control module and phone circuit signal deteching circuit respectively;

Described phone circuit signal deteching circuit comprises the 45 electric capacity, the 46 electric capacity, the 50 electric capacity, the 28 resistance, the 39 resistance and the 44 resistance; The 45 electric capacity, the 46 capacitive coupling are given MCU Main Processing Unit from the AC signal that the phone line path switching circuit transmits; After the 28 resistance, the 39 resistance and the 44 resistance were connected the 45 electric capacity and the 46 electric capacity, the formation impedance network was used for AC signal and carries out impedance matching and signal attenuation; The 50 electric capacity is connected the 28 resistance, the 39 resistance and is used to decay and enters the AC signal of MCU Main Processing Unit with the 44 resistance parallel connection and two ends.

Among the present invention, preferably, described phone line path switching circuit comprises first triode, second triode, the 3rd triode and the 4th triode; The emitter of described first triode connects the positive polarity output terminal of telephone line rectifier bridge heap, and collector electrode connects the conversation control module, and base stage is communicated with the emitter of second triode; The emitter of second triode connects an end of a current-limiting resistance, and collector electrode is connected with the collector electrode of first triode, and base stage is connected with the collector electrode of the 3rd triode, thereby constitutes switch ways; The base stage of the 3rd triode is connected with the HFO end of MCU Main Processing Unit and the base stage of the 4th triode respectively; The collector electrode of the 4th triode is connected with an end of a pull-up resistor, is connected to MCU Main Processing Unit simultaneously, is used to detect the state of switch hook.

Beneficial effect: the wireless alarm telephone set of 2.4G of the present invention not only has the concrete function of existing 2.4G cordless telephone, can also receive the external wireless Infrared Detectors, wireless door magnetic, the wireless button of seeking help, wireless gas sensor, the alarm signal that external sensors such as wireless smoke sense fire detector probes sends is dialed on phone number that the user pre-sets or the Platform Server by the wireless phone of 2.4G and to be reported to the police; Possess phone circuit break alarm simultaneously, disturb and report to the police, low electric alarm etc. are the wireless alarm telephone sets of a extraordinary 2.4G, have a good application prospect.

Description of drawings

Below in conjunction with the drawings and specific embodiments the present invention is done further to specify, above-mentioned and/or otherwise advantage of the present invention will become apparent.

Fig. 1 is the theory diagram of the wireless alarm telephone set of 2.4G in the embodiment of the invention.

Fig. 2 is the part schematic diagram of siren module in the embodiment of the invention.

Fig. 3 is the part schematic diagram of sensor signal wireless receiving module in the embodiment of the invention.

Fig. 4 is the part schematic diagram of conversation control module in the embodiment of the invention.

Fig. 5 is the schematic diagram of speech conversion circuit in the voice broadcast module in the embodiment of the invention.

Fig. 6 be in the embodiment of the invention in the voice broadcast module voice produce the schematic diagram of circuit.

Fig. 7 is the schematic diagram of phone circuit signal deteching circuit in the embodiment of the invention.

Fig. 8 is a telephone line rectifier bridge heap schematic diagram in the embodiment of the invention.

Fig. 9 is the schematic diagram of phone line path switching circuit in the embodiment of the invention.

Figure 10 is the schematic diagram of MCU Main Processing Unit in the embodiment of the invention.

Figure 11 is the schematic diagram of 2.4G wireless communication module in the embodiment of the invention.

Figure 12 is the power amplifier schematic diagram of siren module in the embodiment of the invention.

Figure 13 is the wireless security alarm main program flow chart of 2.4G in the embodiment of the invention.

Embodiment:

As shown in Figure 1, embodiment discloses a kind of 2.4G radio alarming telephone set, comprise MCU Main Processing Unit 1, described MCU Main Processing Unit periphery is connected with 2.4G wireless communication module 2, conversation control module 3, sensor signal wireless receiving module 4, siren module 6, phone circuit signal deteching circuit 9, keyboard 8, LCD display part 5 and voice broadcast module 19.Described 2.4G wireless communication module 2 connects antenna 15, is used for and the communication of 2.4G cordless handset 21 and the transmission of cable voice, and described 2.4G wireless communication module 2 connects conversation control module 3 by speech processing circuit 18.Described sensor signal wireless receiving module 4 is used to receive various kinds of sensors (comprising Smoke Sensor module 11, gas sensor module 12 and infrared sensor module 13 or the like) and passes the wireless signal of coming and send to the MCU Main Processing Unit processing.In the present embodiment, adopt the product of Chinese bold and unconstrained grace safety Science and Technology Ltd., the gas sensor model is ZX101, and the Smoke Sensor model is ZX201, and the infrared sensor model is ZX501.Described conversation control module 3 is responsible for handle speaking circuit 17 and the switching of hand-free circuit 16 and the dialing of phone etc.Described siren module 6 is connected with power amplifier 20 and is used to send sharp-pointed alarm sound with threatening burglary person, described phone circuit signal deteching circuit 9 is responsible for detecting the incoming information that telephone line is come in, keyboard 8 provides the user to import relevant information, the information of decorrelation that the user has been convenient in the display part.MCU Main Processing Unit 1 also is connected with power management module circuit 7, phone line way switch 10, is connected with line interface between phone line way switch 10 and the phone circuit signal deteching circuit 9.Be connected with line interface between described phone line way switch and the phone signal deteching circuit, described line interface can be the telephone wire socket.

As shown in Figure 2, the siren module described in the embodiment comprises three end siren sound generation chip U8, is used to produce sharp-pointed alarm sound.The output VPOW of power management partial circuit shown in the input map interlinking 3a of the 6th diode D6, the emitter of output termination the 9th pliotron 1Q9 of this diode; The collector electrode of the 9th pliotron 1Q9 connects the end of three end siren sound generation chip U8, and base stage connects the collector electrode of the tenth triode 1Q10.The 55 resistance R 55 is connected between the collector electrode of the base stage of the 9th pliotron 1Q9 and the tenth triode 1Q10, is used for the collector current of restricted passage the tenth triode 1Q10.The 56 resistance R 56 connects emitter and the base stage of the 9th triode 1Q9, be used to prevent the 9th triode 1Q9 false triggering, the 9th triode 1Q9 is the power supply switch tube in the three end siren sound generation chip U8 current supply circuits, the 9th triode 1Q9 conducting, three end siren sound generation chip U8 just start working, and send sharp-pointed audio signal.The tenth triode 1Q10 is used to control opening and closing of the 9th pliotron 1Q9, and its base stage connects the BJ-CRT end of MCU Main Processing Unit.The 57 resistance R 57 connects the base stage of the 9th pliotron 1Q9, is used to limit the output current of MCU control delivery outlet.The alarm signal that the 58 resistance R 58, the three end siren sound generation chip U8 that are used to decay produce, the 3rd capacitor C 3 be used to be coupled alarm signal that three end siren sound generation chip U8 produce enters the BJ-OUT end of power amplifier shown in Figure 12.U3 in the power amplifier shown in Figure 12 is the power amplifier chip, the alarm signal that power amplifier chip U3 produces is through current-limiting resistance R37, enter power amplifier chip U3 after coupling capacitance C34 and the resistance R 32, then after amplifying by the 5th of power amplifier chip U3, the 6th pin directly exports loud speaker to, resistance R 34, resistance R 32, capacitor C 35 is formed a power amplifier multiplication factor and is selected network, wherein capacitor C 36, capacitor C 45 is filter capacitor, power amplifier chip U3 first pin is connected with the end of current-limiting resistance R35, whether the other end of current-limiting resistance R35 is connected with the SPK CTR end of MCU Main Processing Unit, be used to control this power amplifier chip and work.

Shown in Fig. 3 a, the sensor signal wireless receiving module 4 described in the embodiment is used to receive the wireless signal that various kinds of sensors is sent, and described sensor signal wireless receiving module comprises power management partial circuit, antenna ANT and signal circuit.Shown in Fig. 3 a, described signal circuit comprises the 51 resistance R the 51, the 52 resistance R 52, two resistance are used for dividing potential drop, matched sensors signal wireless receiver module and MCU Main Processing Unit signal transmission level, and wherein the 51 resistance R 51 connects the RF-SDA end of MCU Main Processing Unit.Described power management partial circuit at a DC-DC voltage transitions network that has under the external power supply situation, is responsible for providing a reliable and stable power supply to the wireless receiving module of Fig. 3 a shown in Fig. 3 c.

Shown in Fig. 3 b, 5 pin voltage stabilizing chip U11 are used for not having under the dispatch from foreign news agency situation, open rechargeable battery set and give the power supply of sensor signal wireless receiving module.The 4th resistance R 4 connects the CE end of 5 pin voltage stabilizing chip U11 and the BAT-CTR end of MCU Main Processing Unit, is used to limit the output current of MCU Main Processing Unit control delivery outlet.Fig. 3 b is not having under the dispatch from foreign news agency situation by the DC-DC voltage transitions network of automatic standby rechargeable battery set to the whole system power supply own, simultaneously comprise that also the wireless receiving module to Fig. 3 a provides stand-by power supply, the wireless signal that Smoke Sensor module 11, gas sensor module 12 and infrared sensor module 13 are sent is responsible for receiving and passing to MCU Main Processing Unit and handle by Fig. 3 a wireless receiving module.

Comprise among Fig. 3 c that three-terminal voltage-stabilizing chip U10 (comprising VOUT, VIN, three ports of ADJ), the 70 electrochemical capacitor C70, the 71

capacitor C

71 and 72 parallel connections of the 72 capacitor C carry out filtering to the voltage of three-terminal voltage-stabilizing chip U10 input VIN.

Second resistance R

2 and 3 two resistance of the 3rd resistance R are used to regulate the magnitude of voltage of three-terminal voltage-stabilizing chip U10 output, and wherein second resistance R 2 connects VIN end and the ADJ end of three-terminal voltage-stabilizing chip U10, and the 3rd resistance R 3 connects the ADJ end of three-terminal voltage-stabilizing chip U10.The 73 electrochemical capacitor C73, the 74 capacitor C the 74, the 75 capacitor C 75, three electric capacity parallel connections are carried out filtering to U10 chip output VOUT voltage.The 12 diode D12 connects three electric capacity parallel connections U10 chip output VOUT is used for guaranteeing not have under the dispatch from foreign news agency situation, the isolation of rechargeable battery set power supply and dispatch from foreign news agency power supply.The 59 electrochemical capacitor C59, the 68 capacitor C the 68, the 69 capacitor C 69, three electric capacity parallel connections are carried out filtering to the 12 diode D12 output end voltage.

As shown in Figure 4, the conversation control module described in the embodiment is used for the high-quality transmission of phone circuit voice, and described conversation control module comprises the conversation chip of 32 pins.The voltage of 32 pins conversation chip the 13rd pin behind two voltage stabilizing didoe serial connections of voltage stabilizing didoe Z4 and voltage stabilizing didoe Z5 restriction receiver off-book is used to prevent that overtension from damaging 32 pins conversation chip.Electric capacity 1C4 carries out filtering to the high-frequency signal of characteristic frequency, prevents that it from entering voice channel and influencing speech quality.Resistance 1R14 and electrochemical capacitor 1EC2 serial connection, AC impedance that communication channel is used to regulate phone of formation.Resistance 1R15, resistance 1R16, resistance 1R17, resistance 1R18, electric capacity 1C5, electric capacity 1C26, electrochemical capacitor 1EC4, the 10th pin LI that connects the conversation chip holds, and constitutes the sidetone that an anti-sidetone network is used to regulate phone.Resistance 1R19, the 10th pin LI end and the 13rd pin LS that connect the conversation chip hold, and are used to regulate the dc impedance of phone.Electrochemical capacitor 1EC3, the 11st pin RI end and the 13rd pin LS that connect the conversation chip hold, the audio signal of the phone circuit that is used to be coupled.Plug-in capacitor 1C6 connects the 14th pin CI end and the ground of conversation chip, the impedance of the 32 pins conversation chip that is used to programme.The 5th triode 1Q5, its base stage connects the 8th pin CS end of conversation chip, and emitter connects the 10th pin LI end of conversation chip, is used for the phone pulse dialing.The 7th triode 1Q7, its base stage connects the 12nd pin SS end of conversation chip, and emitter connects the 10th pin LI end of conversation chip, and collector electrode connects the 22nd pin VPP end of conversation chip, be used for the 22nd pin power supply to 32 pins conversation chip, this pin is the power input of hand-free loudspeaker.Electric capacity 1C34, electric capacity 1C35 and electrochemical capacitor 1EC5 are in parallel, and being used for provides a clean stable power to the 22nd pin hand-free loudspeaker power input of 32 pins conversation chip.The 5th diode 1D5 is responsible for isolating exterior power supply power supply, and power supply does not guarantee the operate as normal of phone to MCU Main Processing Unit behind the handle off-hook when having dispatch from foreign news agency simultaneously.Voltage stabilizing didoe 1ZD3 is a protection voltage stabilizing didoe, prevents that the 18th pin vdd terminal output end voltage of 32 pins conversation chip is too high.Electric capacity 1C32, electric capacity 1C33, electrochemical capacitor 1EC12, filter network of composition carry out filtering to the 18th pin vdd terminal power source supply end of 32 pins conversation chip.Electrochemical capacitor 1EC11, electrochemical capacitor 1EC10, electrochemical capacitor 1EC9, electrochemical capacitor 1EC8, these four electrochemical capacitors are the filter capacitor of the 19th, 1,2,20 pins of 32 pins conversation chip.Resistance 1R43 and electric capacity 1C27 serial connection, Tao Zhen XATL2 is connected in parallel on electric capacity 1C27 two ends, resistance 1R43 connects the 31 pin OSC end of conversation chip, and a reliable and stable frequency input is provided, and the frequency of oscillator has determined the dialing frequency of phone DTMF and the frequency of ringing signal.Port current when resistance 1R40, resistance 1R41, three resistance of resistance 1R42 are used for the chip communication of the conversation chip of limiting call control module and MCU Main Processing Unit.Electrochemical capacitor 1EC7, electrochemical capacitor 1EC15, these two coupling capacitances are coupled to the phone loud speaker with the hands-free signal of being talked about output of the 23rd, 24 pins of 32 pins conversation chip.Resistance 1R35, resistance 1R36, four devices of electric capacity 1C22, electric capacity 1C23 constitute the 16th pin RECV end that a negative feedback network connects the conversation chip, are used to regulate phone and are subjected to speech amount and frequency response.Electric capacity 1C37 connects the 17th pin RO end of conversation chip, and the high-frequency signal of characteristic frequency is carried out filtering, prevents that it from entering callee and influencing speech quality.Electric capacity 1C21 connects the 17th pin RO end and the 15th pin RECI end of conversation chip, and the audio signal that is used for being talked about is coupled into the hands-free talking path that is subjected to.Electric capacity 1C16 connects the 4th pin M2 end and the 6th pin M1 end of conversation chip, is used for the frequency response that regulating handle send words.The 4th pin M2 that the 6th pin M1 end, the electric capacity 1C18 of electric capacity 1C17 connection conversation chip connects the conversation chip holds the high-frequency signal to characteristic frequency to carry out filtering, prevents that it from entering handle and sending the words end to influence speech quality.Electric capacity 1C10, the 3rd pin M4 end that connects the conversation chip and the 5th pin M3 end are used to regulate the hands-free frequency response of sending words.The 5th pin M3 end, the electric capacity 1C12 that electric capacity 1C11 connects the conversation chip connects the 3rd pin M4 end of conversation chip, and the high-frequency signal of characteristic frequency is carried out filtering, prevents that it from entering the hands-free words end that send and influencing speech quality.Resistance 1R20 connects the 5th pin M3 end of conversation chip, and the 3rd pin M4 end that resistance 1R21 connects the conversation chip is used to decay and enters the hands-free signal that send the talking path.Electric capacity 1C8 connects the 5th pin M3 end of conversation chip, and the 3rd pin M4 end that electric capacity 1C9 connects the conversation chip is used to be coupled into the hands-free signal that send the talking path.

As shown in Figure 5, the speech conversion circuit in the audio alert module described in the embodiment comprises 14 pin amplifier chip U14, and amplifier chip U14 is made up of three amplifiers.The 1st, 2,3 pins of amplifier U14-A constitute one group of voltage follower, wherein the 1st, 2 pins connect, make the output voltage of the 1st pin equal the input voltage of this amplifier chip the 3rd pin, the 3rd pin is connected with a potential-divider network, this potential-divider network comprises resistance R 62, resistance R 63, and these two resistance carry out 1/2nd dividing potential drops to VPOW voltage.Be connected amplifier chip the 3rd pin after capacitor C 55 and capacitor C 56 are in parallel, be used for input voltage is carried out filtering.The 4th pin of described amplifier U14-A meets power supply VPOW, the 11st pin ground connection.The 5th of amplifier U14-B, 6,7 pins constitute 1 group 1 to 1 amplifier, the 6th pin of this amplifier chip connects resistance R 65, resistance R 69, the ratio of two resistance has determined the multiplication factor of signal, embodiment adopts 1 to 1 ratio, capacitor C 66 also is used to prevent to introduce High-frequency Interference at resistance R 69 two ends, capacitor C 63 is connected the signal of this group amplifier of coupling input with resistance R 65 other ends, the other end of capacitor C 63 is connected the signal of input and decays with resistance R 74, the other end of resistance R 74 connects the emitter of resistance R 31 and triode 1Q8, triode 1Q8 is the control triode, be used to control the break-make of voice broadcast module output signal, the collection utmost point of triode 1Q8 connects resistance R 29, the other end of resistance R 29 connects the control delivery outlet VOICE_CTR of MCU Main Processing Unit, the output current of resistance R 29 restriction MCU Main Processing Unit control delivery outlets, the other end ground connection of resistance R 31, resistance R 29, the base stage of triode 1Q8 and emitter and resistance R 31 constitute opening and closing of a DC channel control triode 1Q8, the collector electrode of triode 1Q8 is connected with the delivery outlet VOICE of voice broadcast module voice generation circuit among Fig. 6, the 5th pin of amplifier U14-B connects resistance R 64, the other end of resistance R 64 pins is connected with the 1st pin of this amplifier chip, resistance R 64 is an input impedance matching resistance, make the 5th of amplifier U14-B, the input impedance unanimity of 6 pins, the 7th pin of amplifier U14-B is the 5th, 6, the signal output part of single group amplifier that 7 pins constitute, it and resistance R 69, the other end of capacitor C 66 connects, and connects resistance R 70 simultaneously, coupling capacitance C64.The 8th, 9,10 pins of amplifier U14-C constitute 1 group 1 to 1 amplifier, the 9th pin connects resistance R 70, resistance R 71, the ratio of two resistance has determined the multiplication factor of signal, and present embodiment adopts is 1 to 1 ratio, capacitor C 67 and be in order to prevent to introduce High-frequency Interference at resistance R 71 two ends; The 10th pin connects resistance R 72, the other end of resistance R 72 pins is connected with the 1st pin of amplifier U14-A, resistance R 72 is an input impedance matching resistance, make the input impedance unanimity of the 9th, 10 pins of amplifier U14-C, the 8th pin is single signal output part of organizing amplifier that the 8th, 9,10 pins constitute, be connected with the other end of resistance R 71, capacitor C 67, connect coupling capacitance C65 simultaneously; Because the amplifier in this amplifier chip has pair effect of the anti-phase amplification of input signal, therefore single amplifier of organizing of the 8th, 9, the 10 pins formation of single group amplifier of the 5th, 6, the 7 pins formation among the amplifier U14-B and amplifier U14-C has been formed the difference output to single-ended input signal.The 7th pin of amplifier U14-B is connected through the converse HS_MIC+ end of control module part of C64, R40 and Fig. 4, the 8th pin of amplifier U14-C through C65, R41 and Fig. 4 converse control module HS_MIC-hold and be connected.

As shown in Figure 6, voice in the audio alert module described in the embodiment produce circuit and comprise 78 pin voice broadcast chip D6111Y, the 1st, 2,3 pins of described 78 pin voice broadcast chip D6111Y are connected with the 73rd, 74,75 pins of 125 pin MCU Main Processing Units in the MCU Main Processing Unit respectively, and D6111Y sends the voice that will report by MCU Main Processing Unit Single-chip Controlling voice broadcast chip.The 7th, 8 pins of described 78 pin voice broadcast chip D6111Y connect the crystal oscillator X2 of a 32.768KHz, and this crystal oscillator is responsible for giving 78 pin voice broadcast chip D6111Y that the clock signal of a fixed-frequency is provided; The 9th pin connects the 3V3 power supply, and this power supply provides a stable voltage to guarantee the operate as normal of described 78 pin voice broadcast chip D6111Y; The 11st pin connects the end of signal attenuation resistance 4R8, connect a filter capacitor 4C3 simultaneously, the other end ground connection of filter capacitor 4C3, the other end of damping resistance 4R8 connects a coupling capacitance 4C2, the other end output voice of coupling capacitance 4C2, the VOICE that is connected to Fig. 5 speech conversion circuit holds; The 76th pin connects a reset circuit network, and this reset circuit comprises the resistance 4R10 and the electric capacity 4EC1 of series connection, and centre tap connects the 76th pin.

As shown in Figure 7, phone circuit signal deteching circuit described in the embodiment comprises the 45 electric capacity 1C45, the 46 electric capacity 1C46, two capacitive coupling phone circuit AC signal enter the receiving circuit of MCU Main Processing Unit inside, connect the TIP end and the RING end of MCU Main Processing Unit respectively.The 28 resistance 1R28, the 39 resistance 1R39, the 44 resistance 1R44, the network that three resistance constitute plays the effect of impedance matching of phone line input signal and signal attenuation, the 50 electric capacity 1C50, this electric capacity mainly are the signals that enters the inner receiving circuit of MCU Main Processing Unit in order to decay.Concrete connected mode as shown in Figure 7, the AC signal that transmits from line interface, the TIP end and the RING end that connect MCU Main Processing Unit respectively, the circuit that wherein connects the TIP end is provided with 1C45 electric capacity, the 28 resistance 1R28, the circuit that connects the RING end is provided with the 39 resistance 1R39, the 46 electric capacity 1C46, and the 44 resistance 1R44 and the 50 electric capacity 1C50 are connected in parallel on respectively on two circuits that connect TIP end and RING end.

As shown in Figure 8, comprise a telephone line rectifier bridge heap HD1 among the embodiment, its inside comprises four diodes, is divided in parallel two groups, and two groups of diodes in parallel are drawn tap and are respectively 3 pin and 4 pin; Be two diode in series in every group, draw tap between the diode in series and be respectively 1 pin and 2 pin that it is connected with 1 circuit in the 2 core telephone wires respectively.Described 1 pin also is connected with TIP end in Fig. 7 phone circuit signal deteching circuit, and 2 pin are held with RING in Fig. 7 phone circuit signal deteching circuit and are connected the emitter of the first triode 1Q1 in the 3 pin positive polarity output terminal connection layouts 9.

As shown in Figure 9, the phone line path switching circuit described in the embodiment comprises the switch ways of the first triode 1Q1, the second triode 1Q2, two triodes composition phone circuits.The telephone line rectifier bridge is piled the 3rd pin positive polarity output terminal in the emitter connection layout 8 of described first triode, and collector electrode connects the LN end of conversation control module, and base stage is communicated with the emitter of second triode.The emitter of second triode connects the end of a current-limiting resistance 1R1 simultaneously, and collector electrode is connected with the collector electrode of first triode, and base stage is connected with the collector terminal of the 3rd triode, thereby constitutes switch ways.

The first resistance 1R1 connects the base stage of the first triode 1Q1 and the emitter of the emitter and the second triode 1Q2, is used to control the conducting size of current of the first triode 1Q1 and two triodes of the second triode 1Q2.The second resistance 1R2 connect the second triode 1Q2 base stage and and the emitter of the first triode 1Q1, be used to prevent the false triggering of the first triode 1Q1, two triodes of the second triode 1Q2.The base stage of the 3rd resistance 1R3 second triode 1Q2 reaches the collector electrode with the 3rd triode 1Q3, is used for the collector current of restricted passage the 3rd triode 1Q3.The 3rd triode 1Q3 is used to control opening and closing of the first triode 1Q1 and the second triode 1Q2.The 4th resistance 1R4, the 5th resistance 1R5 connect the base stage of the 3rd triode 1Q3 respectively, be used to prevent the false triggering of the 3rd triode 1Q3 (control triode), be a divider resistance simultaneously, guarantee the complete conducting of the 3rd triode 1Q3, and then drag down the collector potential of the 3rd triode 1Q3.The first electric capacity 1C1 is the base stage that filter capacitor connects the 3rd triode 1Q3, is used to prevent the false triggering of the 3rd triode 1Q3.The 9th resistance 1R9 and the 3rd diode D3 are serially connected between the HFO end of the 4th resistance 1R4 and MCU Main Processing Unit; be used to limit the output current of the control delivery outlet of MCU Main Processing Unit; line voltage distribution imports MCU output control mouth into when preventing hook switch HOOK1 work simultaneously, and the control mouth of protection MCU Main Processing Unit is not damaged.The 6th resistance 1R6, the 7th resistance 1R7, three resistance of the 8th resistance 1R8 all are the effects for current limliting and dividing potential drop.The base stage that the tenth resistance 1R10 connects the 4th triode 1Q4 is used to prevent that the false triggering of the 4th triode 1Q4 (control triode) from being a divider resistance simultaneously, guarantees the complete conducting of the 4th triode 1Q4, and then drags down the collector potential of the 4th triode 1Q4.The 11 resistance 1R11 connects the collector electrode of the 4th triode 1Q4, is used to guarantee that hook switch detects mouth and present high level under hook state.The 4th triode 1Q4 conducting when hook switch HOOK1 off-hook, and then drag down the collector potential of the 4th triode 1Q4 makes hook switch detect and mouthful presents low level under off hook state that the 3rd electric capacity 1C3 position filter capacitor is used to prevent the false triggering of the 4th triode 1Q4.The base stage of the 3rd triode is connected to the base stage of the 4th triode with the current limliting potential-divider network that the HFO end is connected, the HFO end is formed through resistance 1R9, resistance 1R7, resistance 1R8, resistance 1R10 of MCU Main Processing Unit behind the current limliting potential-divider network that resistance 1R7, resistance 1R4, resistance 1R5, resistance 1R9 form; Whether the collector electrode of the 4th triode is connected with an end of a pull-up resistor, is connected to the HKS end of MCU Main Processing Unit simultaneously, be used to detect switch hook and move.Voltage stabilizing didoe Z3, resistance R 26, R28 constitute a potential-divider network, wherein the end of R28 is connected with ground, the other end is connected to the LINE_DET end of MCU Main Processing Unit, be used to detect whether off-hook of phone circuit, diode D4 is the pressure limiting diode, be used to prevent the overtension of LINE_DET end, thereby damage the chip pin of MCU Main Processing Unit, electric capacity 1C2 is the noise signal that filter capacitor is used to filter the LINE_DET end.

As shown in figure 10, MCU Main Processing Unit described in the embodiment comprises the single-chip microcomputer U1 of 125 pins, the 36th pin is connected with reset circuit of SCM, reliable reset when the responsible described 125 pin single-chip microcomputers of this reset circuit power on power down, this reset circuit is by divider resistance 4R2,4R3,4R6, switch triode 4Q1,4Q2, pull-up resistor 4R4,4R5 and filter capacitor 4C12 form.40th, 41 pins are connected with the oscillating circuit that comprises crystal oscillator X1, and this circuit provides a reliable and stable clock signal for single-chip microcomputer work; 49th, 50 pins are connected with the 2.4G wireless communication module, are responsible for information such as transmission control, state; Described 125 pin single-chip microcomputers the 46th, 47,48 pins are connected with the conversation chip of conversation control module, are responsible for control information transmission.The 52nd pin is connected the ringing signal that responsible receiving lines is come with phone circuit ring detecting circuit; The 53rd pin is connected with handle transmitter power supply circuits, is responsible for opening and closing of joystick transmitter; The 54th pin is connected with rechargeable battery set electric weight testing circuit, is responsible for detecting the dump energy of rechargeable battery set; The 55th pin is connected with alarm platform handshake testing circuit, is responsible for the handshake that the detection alarm platform sends; The 56th pin is connected with handle receiver control circuit, is responsible for opening and closing of handle receiver; The 57th pin is connected with the rechargeable battery set charging control circuit, the charge switch of the control rechargeable battery set of bearing a heavy burden; 62nd, 63 pins are connected with phone circuit signal deteching circuit, are responsible for receiving the information such as caller ID of coming in by telephone wire; The 66th pin is connected with the siren module, is responsible for opening and closing of control siren module; The 67th pin is connected with the sensor signal wireless receiving module, is responsible for all kinds of detector information that the sensor-lodging wireless receiving module sends; The 68th pin is connected with the phone line way switch, is responsible for the plucking of control telephone line, on-hook; The 69th pin is connected with the line status testing circuit, is responsible for detecting the state of phone circuit; The 70th pin is connected with the rechargeable battery set management circuit, is responsible for opening and closing of rechargeable battery set; 71st, 72 pins are connected with SDA end, the SCL end of plug-in eeprom memory IC2, are responsible for the information that the relevant phone of storage need be handled, and described SDA connects the 3V3 power supply by resistance 4R7; The the 1st to 30 pin and the 113rd to 125 pin are connected with the LCD display part, are responsible for the displaying contents of control phone.

As shown in figure 11,2.4G wireless communication module described in the embodiment comprises 96 pin 2.4G wireless telecommunications chips, chip the 13rd, 14 pins connect external loudspeaker, the 42 capacitor C the 42, the 43 capacitor C the 43, the 44 capacitor C 44 that is connected with these two pins is used for the filtering High-frequency Interference, prevents that it from entering loud speaker and influencing speech quality; 30th, 32 pins connect clock and the data pin of outside EEPROM, are responsible for the parameter that is provided with of some necessity of storage; 54th, 55 pins are connected with the serial ports TXD end and the RXD end of MCU Main Processing Unit, are responsible for the transmission of state and control command; 62nd, 63 pins are the passages that the telecommunication signal that the 2.4G mobile phone transmits are dealt into the phone circuit, and the voice transfer network that is connected with these two pins is made of the 37 capacitor C the 37, the 38 capacitor C the 38, the 39 capacitor C the 39, the 40 capacitor C the 40, the 41 capacitor C the 41, the 53 resistance R 53 and the 54 resistance R 54; Wherein the 39 capacitor C the 39, the 40 capacitor C 40 and the 41 capacitor C 41 are used for the filtering high-frequency cacophony, guarantee speech quality, the 53 resistance R 53 and the 54 resistance R 54 are responsible for deamplification, the 37 capacitor C 37 and the 38 capacitor C 38 voice signal that is used to be coupled, these chip the 65th, 66 pins are connected with oscillating circuit, and this oscillating circuit is configured for being responsible for providing a reliable and stable clock signal to this chip by XATL1 crystal oscillator and capacitor C 26, C27; 68th, 69 pins are talked about receiving circuit with circuit and are connected, and the 24 capacitor C the 24, the 25 capacitor C the 25, the 48 capacitor C 48 that wherein connects these two pins is used for the filtering High-frequency Interference, prevents that it from entering the wireless talking path that is subjected to and influencing speech quality; 85th, 86 pins are the power supply input pin of chip, the electrochemical capacitor EC1, first capacitor C 1, electrochemical capacitor EC9, the 49 capacitor C 49, second capacitor C 2 and the inductance L 6 that are connected with this even individual pin are filtering device, are responsible for providing a reliable and stable power supply supply to chip; 83rd, 88 pins are the power supply output pin of chip, are responsible for giving outside little load device that power supply is provided; The 1st pin connects antenna ANT0, is responsible for receiving microwave signal.

As shown in figure 13, open the described 2.4G radio alarming of embodiment phone, advanced line program initialization, inquire about all kinds of warning triggering signals then, judge respectively whether external sensor triggers, and whether the main frame alarm signal triggers, if do not trigger, then return and inquire about the warning triggering signal again, trigger if exist, then start the siren module and report to the police, simultaneously the number of setting in the called telephone machine, carried out corresponding actions up to the user and then stopped call, otherwise kept calling out.

Will be understood that, embodiments of the invention and accompanying drawing part, detailed introduction each pin of chip title and draw function and connect, in fact be exactly the function diagram that discloses chip of the present invention, any those skilled in the art sees the introduction among the present invention, can both find the peripheral circuit realization goal of the invention that relevant chip designs in conjunction with institute's novelty among the present invention on the market.

The invention provides the thinking and the method for the wireless alarm telephone set of a kind of 2.4G; the method and the approach of this technical scheme of specific implementation are a lot; the above only is a preferred implementation of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each part not clear and definite in the present embodiment is realized.

Claims

1. the wireless alarm telephone set of 2.4G comprises, MCU Main Processing Unit is connected with 2.4G wireless communication module, conversation control module, power management module, keyboard input module in the MCU Main Processing Unit periphery; Described conversation control module also connects handfree circuit and handle speaking circuit respectively; Described 2.4G wireless communication module is connected speech processing circuit with conversation between the control module, it is characterized in that, described MCU Main Processing Unit also is connected with phone line path switching circuit and phone circuit signal deteching circuit, and described phone line path switching circuit also is connected with conversation control module and phone circuit signal deteching circuit respectively;

2. the wireless alarm telephone set of a kind of 2.4G according to claim 1 is characterized in that described phone line path switching circuit comprises first triode, second triode, the 3rd triode and the 4th triode; The emitter of described first triode connects the positive polarity output terminal of telephone line rectifier bridge heap, and collector electrode connects the conversation control module, and base stage is communicated with the emitter of second triode; The emitter of second triode connects an end of a current-limiting resistance, and collector electrode is connected with the collector electrode of first triode, and base stage is connected with the collector electrode of the 3rd triode, thereby constitutes switch ways; The base stage of the 3rd triode is connected with the HFO end of MCU Main Processing Unit and the base stage of the 4th triode respectively; The collector electrode of the 4th triode is connected with an end of a pull-up resistor, is connected to MCU Main Processing Unit simultaneously, is used to detect the state of switch hook.

3. the wireless alarm telephone set of a kind of 2.4G according to claim 2 is characterized in that, described telephone line rectifier bridge heap comprises four diodes, is divided in parallel two groups, and two groups of diodes in parallel are drawn tap and are respectively 3 pin and 4 pin; Be two diode in series in every group, draw tap between the diode in series and be respectively 1 pin and 2 pin that it is connected with 1 circuit in the 2 core telephone wires respectively; 1 pin also is connected with TIP end in the described phone circuit signal deteching circuit, and 2 pin are held with RING in the phone circuit signal deteching circuit and are connected the emitter of first triode in the 3 pin positive polarity output terminals connection phone line path switching circuit.