CN2461090Y - Anti-theft monitoring device - Google Patents
Anti-theft monitoring device Download PDFInfo
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- CN2461090Y CN2461090Y CN 00252975 CN00252975U CN2461090Y CN 2461090 Y CN2461090 Y CN 2461090Y CN 00252975 CN00252975 CN 00252975 CN 00252975 U CN00252975 U CN 00252975U CN 2461090 Y CN2461090 Y CN 2461090Y
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Abstract
The utility model discloses an anti-theft monitoring device, which is composed of a radio transmitter and a radio receiver. The utility model is characterized in that the radio transmitter is composed of a signal monitoring circuit, a ringing signal generating circuit, an audio input circuit, and a high frequency transmitting circuit; the radio receiver is composed of a signal receiving circuit, a demodulation circuit, and an audio output circuit of ringing signals; the radio transmitter also comprises a receiving branch which is composed of a receiving circuit for receiving feedback signals and a mode control circuit; the radio receiver also comprises a mode control circuit for receiving ringing signals and a high frequency transmitting circuit. The device uses duplex double-frequency technology, and therefore, the situation of a device on which the radio transmitter is positioned can be clearly known through a screen and an earpiece of the radio receiver, and the radio transmitter takes different preventive measures according to different situations. The device is especially suitable for automobile theft prevention.
Description
The utility model relates to a kind of anti-theft monitoring device.
At present, the alarm that car is installed, there are " central controlled lock ", " iron general " etc. several, transmitter that these alarms mainly are made up of a radiating circuit and the receiver of being made up of a receiving circuit constitute, all have certain antitheft effect, but exist alerting signal indeterminate, also report to the police if any other sounds of movement, reporting to the police mainly is to scream, disturb residents and do not hear sometimes, the warning radius is little, and shortcomings such as inconvenience are installed.
The purpose of this utility model provides and a kind ofly monitors that radius is far away, quick for installation, alerting signal accurately and anti-theft monitoring device that can monitoring stolen article situation.
The utility model is achieved in that anti-theft monitoring device, it is made up of transmitting set, wireless receiver two parts, and transmitting set is made up of the triggering ringing circuit, audio frequency input circuit, state identification circuit, the high frequency transmission circuit that receive information from the external world; Wireless receiver by the receiving circuit that receives high frequency MF signal, signal carried out the audio output circuit that demodulation produces ringdown form, transmitting set also comprises a receiving branch, and receiving branch is made up of the receiving circuit of receiving feedback signals, the state control circuit that carries out signal Processing; Wireless receiver also comprises a transmitting branch, and transmitting branch is by the state control circuit that receives ringdown, the branch road of high frequency transmission circuit.
The state control circuit of wireless receiver part is mainly finished by integrated circuit (IC) 3 coding circuits and several state control switch of linking to each other with coding circuit.
The high frequency transmission circuit of wireless receiver part is main successively by the IC3 coding circuit from the wireless receiver state control circuit, the master-oscillator circuit that encoded signals is formed through crystal X2, varactor D1, telefault T7, signal carried out the frequency multiplier circuit frequently put, the circuit Q8, the Q9 that then signal are amplified are launched by receiver antenna.
The audio output circuit of wireless receiver part successively mainly by the signal of the prevention of Q5 from wireless receiver part receiving circuit send into put in the frequency modulation and demodulation special IC IC1, carry out mixting circuit for the second time at the integrated circuit (IC) 101 inner local oscillation signals that produce with crystal, circuit FL3 that second intermediate-freuqncy signal that mixing is produced is carried out filtering through the output of integrated circuit (IC) 101 tripods, this signal input ic is disposed output audio signal.
The triggering ringing circuit of transmitting set part mainly is to be realized by controller ZDY-01, transistor Q11, triode Q12 and the integrated circuit V4 that produces ringdown.
The state identification circuit of transmitting set part mainly produces sound signal through amplifier transistor Q5, triode Q6 amplifying circuit by microphone MIC successively, the sound signal after the amplification through resistance R 22 coupling high frequency transmission circuits to transistor Q10.
The high frequency transmission circuit of transmitting set part is by the transistor Q10 of accepting state identification circuit sound signal, crystal X1, the master-oscillator circuit that varactor D3 forms, the high frequency frequency modulation fundamental signal that produces is coupled to transistor Q9 through capacitor C 38, telefault T11, the four frequent amplifying circuits that capacitor C 43 is formed, the MF signal that is produced by amplifying circuit is coupled through capacitor C 44, through transistor Q8, triode Q7 amplifying circuit, by telefault T9, capacitor C 52, capacitor C 53 is carried out anti-match circuit and coil L4～coil L9, the filtering circuit of capacitor C 54～capacitor C 59 is with signal antennas radiation direction mobile phone sending signal.
The receiving circuit of wireless receiver part is followed successively by capacitor C 2 and is coupled to coil L3～coil L5, capacitor C 4～capacitor C 6, the input circuit that telefault T1 forms carries out signal the telefault T2 of bandpass filtering, telefault T3 double tunning coupled circuit, the transistor Q1 crystal amplifying circuit that signal is amplified, the transistor Q4 amplifying circuit that the local oscillation signal that is produced by transistor Q3 and crystal X1 circuit amplifies, the triode Q2 circuit that the high-frequency signal of local oscillation signal and transistor QI output is carried out mixing, the intermediate-freuqncy signal that produces after the mixing is carried out the circuit FL101 of filtering, send the transistor amplifying circuit to put in advance filtered signal.
The audio output circuit of wireless receiver part mainly by the signal of the prevention of Q5 from wireless receiver part receiving circuit send into put in the frequency modulation and demodulation special IC IC1, carry out mixting circuit for the second time at the integrated circuit (IC) 101 inner local oscillation signals that produce with crystal, circuit FL3 that second intermediate-freuqncy signal that mixing is produced is carried out filtering through the output of integrated circuit (IC) 101 tripods, this signal input ic is disposed output audio signal.
The state executive circuit of transmitting set part is mainly fetched mutually by several function buttons and integrated circuit 5027 and integrated circuit 4069 and carries out the feature operation of case formula.
The utility model has adopted duplexing double frequency circuit, when transmitting set place device when a situation arises, signal feedback is to wireless receiver, the situation that can clearly understand transmitting set place device by the screen and the receiver of receiver, and according to the situation of being encroached on, wireless receiver starts different contactors, commander's transmitting set is to being implemented the different precautionary measures by the infringement object, as outage, the car oil circuit of cutting steam, make charged etc. by infringement object entire body, this type of alarm is concealed, and not screaming disturbs residents, and the monitoring radius is bigger, and make simple, easy for installation;
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a process flow diagram of the present utility model;
Fig. 2 is the triggering ringing circuit structural representation of the utility model transmitting set part;
Fig. 3 is the state executive circuit structural representation of the utility model transmitting set part;
Fig. 4 is the state identification circuit structural representation of the utility model transmitting set part;
Fig. 5 is the state encoding control circuit synoptic diagram of the utility model wireless receiver part;
Fig. 6 is the electrical block diagram of the utility model transmitting set part;
Fig. 7 is the electrical block diagram of the utility model wireless receiver part;
Among Fig. 1, among the process flow diagram A of the present utility model, A1 arrives ringing signal generating signal circuit A2 to high frequency transmission circuit A3 for the pilot signal circuit, and A4 is the audio frequency input circuit, and A5 is a state control circuit, and A6 is a receiving circuit; Among the process flow diagram B, B1 is that receiving circuit is to audio output circuit B2; B4 is that state control circuit is to high frequency transmission circuit B3;
Embodiment:
The utility model is made up of transmitting set, wireless receiver two parts, and transmitting set is made up of the triggering ringing circuit, audio frequency input circuit, state identification circuit, the high frequency transmission circuit that receive information from the external world; Wireless receiver by the receiving circuit that receives high frequency MF signal, signal carried out the audio output circuit that demodulation produces ringdown form, described transmitting set also comprises a receiving branch, and receiving branch is made up of the receiving circuit of receiving feedback signals, the state control circuit that carries out signal Processing; Wireless receiver also comprises a transmitting branch, and transmitting branch is by the state control circuit that receives ringdown, the branch road of high frequency transmission circuit; When anti-theft monitoring device enters monitor state, collide by infringement equipment if any the people, the triggering ringing circuit of transmitting set part is started working, and controller ZDY-01 is triggered and makes transistor Q11, triode Q12 conducting, and transmitting set is started working; At first integrated circuit V4 produces the alarm will sound signal, and the sound signal of microphone (MIC) generation is then carried out the two poles of the earth through amplifier transistor Q5, Q6 and amplified; Sound signal after the amplification is coupled to the master-oscillator that transistor Q10, crystal X1, varactor D3 form through resistance R 22, and this sound signal changes the junction capacity of diode D3, and the master-oscillator frequency is changed thereupon, thereby realizes frequency modulation (PFM); The high frequency frequency modulation fundamental signal that produces is coupled to the four frequent amplifying circuits that transistor Q9, telefault T11, capacitor C 43 are formed through capacitor C 38, obtains the high frequency FM signal of required frequency.This signal is by capacitor C 44 couplings, after transistor Q8, Q7 amplify, carry out the filtering circuit of anti-match circuit and coil L4～coil L9, capacitor C 54～capacitor C 59 by telefault T9, capacitor C 52, capacitor C 53, signal antennas radiation direction wireless receiver is sent signal; After wireless receiver receives signal, be coupled to the input circuit of coil L3～L5, capacitor C 4～capacitor C 6, telefault T1 composition through capacitor C 2, after telefault T2, telefault T3 double tunning coupled circuit carry out bandpass filtering, send into transistor Q1 and amplify again; The high-frequency signal that the transistor Q4 buffering that the local oscillation signal that is produced by transistor Q3 and crystal X1 circuit amplifies is amplified back and transistor QI output carries out mixing and produces the intermediate-freuqncy signal that frequency is F1 intermediate frequency=F1 local oscillator-F high frequency=10.7HZ; This signal is sent into transistor Q5 and is put in advance after FL101 filtering; Amplified IF signal is sent into and is put in the frequency modulation and demodulation special IC IC1 the 16th pin, carry out the mixing second time at the integrated circuit (IC) 101 inner local oscillation signals that produce with crystal, obtain second intermediate-freuqncy signal of F intermediate frequency=F1 intermediate frequency-F local oscillator=10.7MHZ-10.254MHZ=455KHZ.This signal is from integrated circuit (IC) 101 the 3rd pin output, after FL3 filtering, and input ic IC101 the 5th pin again.After amplitude limit amplification and demodulation are finished in integrated circuit (IC) 101 inside, export demodulated sound signal from integrated circuit (IC) 101 the 9th pin.After wireless receiver was received the ringdown that transmitter sends, owner pressed receiver switch, enters listening state, takes appropriate measures according to situation about making a clear distinction.By A is that car is flame-out, and B is for being shutdown; When pressing A or B, behind integrated circuit (IC) 3 coding circuits coding, through crystal X2, varactor D1, the master-oscillator that telefault T7 etc. form.The junction capacity of amplifying back diode D1 changes, and master oscillator frequenc is changed thereupon, thereby realizes frequency modulation (PFM).After transistor Q7 frequency multiplication, after transistor Q8, Q9 amplification, deliver to the wireless receiver antenna and launch again.Transmitting set receives the signal that wireless receiver is sent, and state identification circuit is started working, and several function buttons move.Anti-theft monitoring device is in working order the time, if controller ZDY-01 is triggered continuously, transmitting set will constantly send sound signal to wireless receiver in the anti-theft device, at this moment wireless receiver will be heard all sounds in the car, or see text prompt from wireless receiver, thereby the car owner can according to circumstances take appropriate measures.If there is not situation after anti-theft device is triggered once in a while again, close automatically after anti-theft device will be delayed time 60 seconds and continue to enter monitor state.
Claims (10)
1, anti-theft monitoring device, it is made up of transmitting set, wireless receiver two parts, and transmitting set is made up of the triggering ringing circuit, audio frequency input circuit, state identification circuit, the high frequency transmission circuit that receive information from the external world; Wireless receiver by the receiving circuit that receives high frequency MF signal, signal carried out the audio output circuit that demodulation produces ringdown form, it is characterized in that: described transmitting set also comprises a receiving branch, and receiving branch is made up of the receiving circuit of receiving feedback signals, the state control circuit that carries out signal Processing; Wireless receiver also comprises a transmitting branch, and transmitting branch is by the state control circuit that receives ringdown, the branch road of high frequency transmission circuit.
2, anti-theft monitoring device according to claim 1 is characterized in that: the state control circuit of described wireless receiver part is mainly finished by integrated circuit (IC) 3 coding circuits and several state control switch of linking to each other with coding circuit.
3, anti-theft monitoring device according to claim 2, it is characterized in that: the high frequency transmission circuit of described wireless receiver part is main successively by the IC3 coding circuit from the wireless receiver state control circuit, the master-oscillator circuit that encoded signals is formed through crystal X2, varactor D1, telefault T7, signal carried out the frequency multiplier circuit frequently put, the circuit Q8, the Q9 that then signal are amplified are launched by receiver antenna.
4, anti-theft monitoring device according to claim 1, it is characterized in that: the audio output circuit of described wireless receiver part successively mainly by the signal of the prevention of Q5 from wireless receiver part receiving circuit send into put in the frequency modulation and demodulation special IC IC1, carry out mixting circuit for the second time at the integrated circuit (IC) 101 inner local oscillation signals that produce with crystal, circuit FL3 that second intermediate-freuqncy signal that mixing is produced is carried out filtering through the output of integrated circuit (IC) 101 tripods, this signal input ic is disposed output audio signal.
5, anti-theft monitoring device according to claim 1 is characterized in that: the triggering ringing circuit of described transmitting set part mainly is to be realized by controller ZDY-01, transistor Q11, triode Q12 and the integrated circuit V4 that produces ringdown.
6, anti-theft monitoring device according to claim 1, it is characterized in that: the state identification circuit of described transmitting set part mainly produces sound signal through amplifier transistor Q5, triode Q6 amplifying circuit by microphone MIC successively, the sound signal after the amplification through resistance R 22 coupling high frequency transmission circuits to transistor Q10.
7, anti-theft monitoring device according to claim 1, it is characterized in that: the high frequency transmission circuit of described transmitting set part is by the transistor Q10 of accepting state identification circuit sound signal, crystal X1, the master-oscillator circuit that varactor D3 forms, the high frequency frequency modulation fundamental signal that produces is coupled to transistor Q9 through capacitor C 38, telefault T11, the four frequent amplifying circuits that capacitor C 43 is formed, the MF signal that is produced by amplifying circuit is coupled through capacitor C 44, through transistor Q8, triode Q7 amplifying circuit, by telefault T9, capacitor C 52, capacitor C 53 is carried out anti-match circuit and coil L4～coil L9, the filtering circuit of capacitor C 54～capacitor C 59 is with signal antennas radiation direction mobile phone sending signal.
8, anti-theft monitoring device according to claim 1, it is characterized in that: the receiving circuit of described wireless receiver part is followed successively by capacitor C 2 and is coupled to coil L3～coil L5, capacitor C 4～capacitor C 6, the input circuit that telefault T1 forms carries out signal the telefault T2 of bandpass filtering, telefault T3 double tunning coupled circuit, the transistor Q1 crystal amplifying circuit that signal is amplified, the transistor Q4 amplifying circuit that the local oscillation signal that is produced by transistor Q3 and crystal X1 circuit amplifies, the triode Q2 circuit that the high-frequency signal of local oscillation signal and transistor QI output is carried out mixing, the intermediate-freuqncy signal that produces after the mixing is carried out the circuit FL101 of filtering, send the transistor amplifying circuit to put in advance filtered signal.
9, anti-theft monitoring device according to claim 1, it is characterized in that: the audio output circuit of described wireless receiver part successively mainly by the signal of the prevention of Q5 from wireless receiver part receiving circuit send into put in the frequency modulation and demodulation special IC IC1, carry out mixting circuit for the second time at the integrated circuit (IC) 101 inner local oscillation signals that produce with crystal, circuit FL3 that second intermediate-freuqncy signal that mixing is produced is carried out filtering through the output of integrated circuit (IC) 101 tripods, this signal input ic is disposed output audio signal.
10, anti-theft monitoring device according to claim 1 is characterized in that: the state executive circuit of described transmitting set part is mainly fetched mutually by several function buttons and integrated circuit 5027 and integrated circuit 4069 and carries out the feature operation of case formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00252975 CN2461090Y (en) | 2000-11-20 | 2000-11-20 | Anti-theft monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00252975 CN2461090Y (en) | 2000-11-20 | 2000-11-20 | Anti-theft monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2461090Y true CN2461090Y (en) | 2001-11-21 |
Family
ID=33610518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00252975 Expired - Fee Related CN2461090Y (en) | 2000-11-20 | 2000-11-20 | Anti-theft monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2461090Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299344A (en) * | 2014-10-08 | 2015-01-21 | 四川仪岛科技有限公司 | Automatic networking alarming and responding device and control method thereof |
-
2000
- 2000-11-20 CN CN 00252975 patent/CN2461090Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299344A (en) * | 2014-10-08 | 2015-01-21 | 四川仪岛科技有限公司 | Automatic networking alarming and responding device and control method thereof |
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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 |