CN2244748Y - Dynamic fixed-point positioning monitor for city automobile - Google Patents
Dynamic fixed-point positioning monitor for city automobile Download PDFInfo
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- CN2244748Y CN2244748Y CN 95239498 CN95239498U CN2244748Y CN 2244748 Y CN2244748 Y CN 2244748Y CN 95239498 CN95239498 CN 95239498 CN 95239498 U CN95239498 U CN 95239498U CN 2244748 Y CN2244748 Y CN 2244748Y
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Abstract
The utility model relates to a dynamic fixed-point positioning monitor for city automobiles, which is tracking device for the theft protection and the hijacking prevention of the automobiles. The utility model comprises mainly a vehicle-loaded transmitter which is arranged on the automobile; a fixed-point receiver which is arranged on a road; a central data processor and an area map display which arranged in a central monitor room. The utility model is characterized in that the range of the transmitter whose power is smaller is 200 meters in general; the fixed-point receiver and the central data processor are connected by a city telephone line, and the signal is transmitted by two-tone transmission mode. Once a signal which loads the characteristics of the automobile, such as the color, the model and the designation of the automobile is sent by the vehicle-loaded transmitter, the signal can be received by the fixed-point receiver and sent to the central data processor.
Description
The utility model is a kind of automobile in the city to be followed the tracks of, and a kind of device of actual measurement automobile present position belongs to the anti-technical field of kidnapping watch-dog of automobile burglar.
Antitheft for automobile, the anti-abduction, the general method that adopts is to install separation net additional installing additional on the automobile between burglar alarm or driver and the passenger, can only play certain prestige to illegal person for this antitheft, the anti-facility of kidnapping and take the photograph effect, and really after illegal person steals automobile or kidnap, car owner or public security organ can not in time know stolen or the automobile kidnapped in the city somewhere, therefore can not in time adopt an effective measure, prevent malfeasant continuation.In mobile communication, the monitoring to some mobile targets generally has satellite monitoring and bikini control tower locating device, and the satellite monitoring device is to utilize many stationary satellites, reaches the location to a certain moving vehicle; And bikini control tower monitoring arrangement is outside some zones that needs to monitor, three signals is set receives control tower, and the signal that is received jointly by three control towers comes a certain traverser is positioned.More than these two kinds of locating devices except having cost very the costliness, emitter on the crucial moving vehicle that also is to be monitored, its emissive power requires bigger, easily other communication signal is disturbed, and bandwidth to allowing to use, can do not hold any more several ten thousand, therefore hundreds of thousands even up to a million the various frequency signals that the automobile emitter sends yet just can accurately not known which car is stolen or be held as a hostage.
It is low that the purpose of this utility model provides a kind of cost, can accurately and timely measure position, the vehicle of stolen or the automobile of being held as a hostage, the dynamic static fixing monitoring device of city automobile of license number.
The dynamic static fixing monitoring device of city automobile of the present utility model mainly is made up of 4 parts, that is: vehicle-mounted transmitter (1), fixed point receiver (2), centre data processor (3), area map display (4), vehicle-mounted transmitter has a plurality of, be installed in respectively on each automobile, fixed point receiver (2) also has a plurality of, be installed in each crossing of urban road respectively, centre data processor (3) and area map display (4) are positioned at monitoring central station, vehicle-mounted transmitter (1) transmitted radio signal, receive this radio signal by fixed point receiver (2), and transfer signals to the centre data processor (3) of monitoring central station, and demonstrate the automobile present position of sending signal by area map display (4) by the mode of wire transmission.Vehicle-mounted transmitter (1) is made up of startup (1-1), coding (1-2), modulation (1-3), these 4 part institutes of high-frequency emission (1-4), starting (1-1) is the power switch part, it can be controlled by burglar alarm when vehicle is stolen by manual control when vehicle is held as a hostage.Coding (1-2) is made up of K switch 1, K2 part and the integrated coding circuit U 1-1 of input coding, and modulation (1-3) is made up of modulator integrated circuit U1-2, and high-frequency emission (1-4) is made up of T1-2, T1-2, T1-3, T1-4 and peripheral cell.Wherein in coding circuit, the input end that the output terminal of code switch K1 and K2 meets the integrated circuit U 1-1 of coding respectively is " 2 pin " and " 8 pin ", the output terminal of integrated circuit U1-1 " pin 17 " connects the base stage of transistor T 1-0, its collector connect modulation circuit U1-2's " 3 pin ", " 3 pin " of modulation circuit U1-2 joins with the collector of transistor T 1-0, the output terminal of U1-2 i.e. " 14 pin " base stage by the transistor T 1-1 in capacitive coupling and the high frequency transmission circuit links to each other, transistor T 1-1 is a frequency multiplier circuit, T1-2, T1-3 is that signal amplifies, T1-4 is power amplification, wherein between transistor T 1-3 and the T1-4 by transformer coupled, the collector of T1-4 also will transmit by transformer and be coupled to emitting antenna.The code that at first will have features such as the color of using vehicle, vehicle, the trade mark during use is compiled among the encoder U1-1, in case start the power connection of (1-1) part, this information will be by modulator U1-2 modulation, partly launch by high-frequency emission, in order not influence other wireless signal and the accurate positioning in space, this vehicle-mounted transmitter (1) is miniwatt, transmitter closely, and its transmitting range is generally in 200 meters.
Fixed point receiver (2) comprises bandpass filtering (2-1), digital demodulation (2-2), shaping output (2-3) transmission circuit (2-4), wherein bandpass filtering (2-1) adopts ceramic filter F1, F2, it is " MC3367 " that digital demodulation (2-2) adopts its model of low-power consumption narrow-band frequency modulation intermediate-frequency circuit U2-1, and its signal input part i.e. " 25,28 " pin is connected with ceramic filter F1." 23,2 " pin is connected with ceramic filter F2.Shaping circuit (2-3) is electric capacity, inductive bank component " LC ".The two ends of this subassembly are attempted by on U2-1's " 11 " and " 12 " pin, and wherein " 11 " pin of U2-1 joins by the emitter of an electric capacity and transistor T 2-5, T2-4.Transmission circuit (2-4) comprise pluck, on-hook circuit (2-4), dual toned circuit (2-42), central control circuit 2-44).Wherein pluck, on-hook circuit (2-41) comprises commutation diode D1～D4, transistor T 2-3～T2-6, dual toned circuit (2-42) comprises that integrated circuit U2-6, ring detect (2-43) and comprise integrated circuit U2-7, U2-8, central control circuit (2-44) comprises U2-3, U2-4, U2-5, wherein U2-3 is a single chip microcomputer, and U2-4 is that latch, U2-5 are memory.The transmission circuit of cable data (2-4) is the part that the fixed point receiver (2) and the centre data processor (3) of console for centralized control carry out data transmission, after fixed point receiver (2) receives active data information, the application of promptly dialling, after circuit is connected, the centre data processor (3) of Surveillance center returns an answer signal, set up communication link, when information transmission and check errorless, centre data processor (3) returns a response signal again, the on-hook of just taking out stitches of transmission circuit (2-4) in fixed point receiver (2), device has just been finished communication process one time.
Centre data processor (3) comprises an interface circuit (3-1), data transmission circuit (3-2), wherein interface circuit (3-1) comprises transistor T 3-6 and photoelectrical coupler G1, G2, and transmission circuit (3-2) is the same with transmission circuit (2-4) in fixed point receiver (2).Photoelectrical coupler G1 does output to isolate usefulness, and transistorized emitter is made output terminal among its G1, and the signal of G1 comes from transistor T 3-6, and the transistor T 3-6 and the utmost point of base and the pin " 11 " of U3-1 " 8031 " join.Photoelectrical coupler G2 is that signal input is isolated, and the signal input part of G2 is that optocoupler diode and transmission line join, and the output terminal of G2 is that the pin " 10 " of transistorized collector and U3-1 " 8031 " joins among the G2.
The course of work of whole device is: vehicle-mounted transmitter (1) is installed on the car of networking, every chassis is installed a chassis and is carried transmitter, the mode of features such as the license plate number of this car, vehicle, color with coding is programmed in the scrambler of vehicle-mounted transmitter, vehicle-mounted transmitter (1) is not worked at automobile normal running with when parking, starting this transmitter has dual mode, and a kind of is to manually start, promptly when vehicle is held as a hostage, start knob by the driver, make transmitter work.Another kind is to be connected with burglar alarm, when vehicle is stolen, is worked by the alarm activation transmitter.In order not influence other radio signal, and accurate positioning, this vehicle-mounted transmitter is a miniwatt, in-plant frequency modulation transmitter, when in 200 meters of the vehicle approaching fixed point receivers, fixed point receiver (2) just can receive this car characteristic signal that has that this vehicle-mounted transmitter sends, receiving trap amplifies the alerting signal that receives earlier, by bandpass filtering, send into digital demodulator again and restore a true form, after shaping, export.In a single day hop receives declares coded signal, promptly open the dialing of phone partial simulation off-hook, after receiving the backward signalling of Surveillance center, again by double-tone frequency transmission manner, with the centre data processor (3) of data biography to Surveillance center, after having transmitted, receive after the recall signal that the centre data processor sends to be on-hook.After centre data is handled and is received the signal that transmits, at first differentiate the code of fixed point receiver (2), so that know send warning vehicle wherein, translate license plate number, vehicle, color etc. according to the information code that transmits then, demonstrate by area map display (4) at last and send the residing position of warning vehicle.
The utility model advantage is:
1. cost is low, with regard to transmitter, is that miniwatt, closely transmitter, so its cost are very low, is specially adapted to the occasion of this extensive use.
2. little to the interference of other radio channel of space.Because the transmitting range of this transmitter generally is controlled at about 150 meters, therefore almost other radio communication is not disturbed, do not take the channel of radio communication yet.
3. accurate positioning.Because each receiver can only be received the signal that sends in 150 meters left and right sides scopes, therefore can know accurately and send the residing position of alerting signal vehicle, and can know the route that the warning vehicle is sailed continuously.
4. the signal transmission is reliable.Adopt the urban telephone circuit to make transmission line, its signal is not subjected to the interference of any other signal, so the bit error rate is extremely low, adopt double-tone to keep pouring in defeated mode in addition, its transmitting speed is fast, the efficient height, therefore the general transmission time takies the normal use of wire telephony hardly at Millisecond.
5. can monitor stolen effectively or residing position of hijacking vehicle and travel route,, prevent the continuation of illegal activities, effectively guarantee the safety of vehicle so that in time take measures.
Fig. 1 is a The general frame of the present utility model.
Fig. 2 is the structured flowchart of vehicle-mounted transmitter (1) in the utility model.
Fig. 3 is the electric former figure of vehicle-mounted transmitter.
Fig. 4 is the structured flowchart of the utility model fixed point receiver (2).
Fig. 5 is the electrical schematic diagram of passband filtering (2-1) in the fixed point receiver (2), digital demodulation (2-2), shaping output (2-3) transmission circuit (2-4).
Fig. 6 is the electrical schematic diagram of centre data processor (3).
Embodiment of the present utility model is as follows:
The utility model is made up of vehicle-mounted transmitter (1), fixed point receiver (2), centre data processor (3), area map display (4), and vehicle-mounted emission (1) comprises startup (1-1), coding (1-2), modulation (1-3), high-frequency emission (1-4).Wherein start (1-1) and be made up of the driving circuit of power switch and burglar alarm, power switch is for turning round the formula switch, and promptly as long as driver one takes this switch off, vehicle-mounted transmitter will be worked, and sends signal.Coding (1-2) is made up of for " CD 5026 " and code switch K1, K2 coded slice U1-1 model, coded signal is by " 2,8 " pin input of " CD5026 ", " 17 " pin output i.e. " 2, the 8 " pin of " CD5026 " is joined with code switch K1, K2 respectively, and the base stage of output terminal " 17 " pin and transistor T 1-0 is joined.Modulation (1-3) is that U1-2 adopts " MC2831 " integrated circuit, modulation signal is exported by " 14 " pin, " 14 " pin that is U1-2 is connected with transistorized base stage in the high frequency transmission circuit by capacitive coupling, frequency multiplication through T1-1, the amplification of T1-2, T1-3, amplify the output radiofrequency signal by the transistor T 1-4 rate of doing work, the output power of this radiofrequency signal generally is controlled in the scope of tens milliwatts.Fixed point receiver (2) comprises bandpass filtering (2-1), digital demodulation (2-2), shaping output (2-3), transmission circuit (2-4).Wherein band-pass filter ripple (2-1) adopts ceramic filter F1, F2, digital demodulation (2-2) U2-1 adopts " MC3367 ", this circuit is a kind of low-power consumption narrowband modulation intermediate-frequency circuit, inside comprises oscillator, frequency mixer, amplitude limit amplification, frequency discriminator etc., circuit adopts a mixing mode, signal together injects the frequency mixer of " MC3367 " with oscillation signals according behind frequency selection network.F1, F2 are connected with " 25,28 " pin of U2-1 and " 23,2 " pin respectively, transmission circuit (2-4) comprise pluck, on-hook circuit (2-41), dual toned circuit (2-42), ring detect (2-43), central control circuit (2-44).Wherein set out machine circuit (2-41) by transistor T 2-3, T2-4, T2-5, T2-6, and diode D1-4 formed, this part is connected with dual toned circuit U2-6, the model that U2-6 adopts is " 8880 ", simultaneously, the U2-6 of dual toned circuit detects (2-43) with ring, central control circuit (2-44) is connected, ring detects (2-43) mainly to be made up of gate circuit U2-7 " 7400 " and trigger U2-8, and central control circuit (2-44) mainly is made up of U2-3 " 80 31 " and latch U2-4 " 373 " and memory U2-5 " 2732 ".Centre data processor (3) comprises interface circuit (3-1) and data transmission circuit (3-2).Wherein interface circuit adopts photoelectrical coupler G1, G2 to do the isolation of signal input and output, transmission circuit (3-2) is the same with transmission circuit (2-4) in fixed point receiver (2), the input end of optocoupler G1 is connected between the collector and emitter of transistor T 3-6, the base stage of T3-6 links to each other with " 11 " pin of U3-1, and the output terminal of G2 is connected on " 10 " pin of single chip microcomputer 8031.Area map display (4) adopts the digital computer map display, the coordinate signal that this display provides according to centre data processor (3), with the residing position display of vehicle in the corresponding position of map.Connect according to after the above assembles each several part, vehicle-mounted transmitter (1) is installed on the motor vehicle, transmitter of each car, fixed point receiver (2) is installed in each crossing intersection part in city, and the transmission circuit part in the fixed point receiver (2) is connected with the urban telephone circuit.Centre data processor (3) also is connected with the urban telephone circuit, and like this, as long as vehicle-mounted transmitter work is arranged, monitoring center just can know immediately that the vehicle that sends alerting signal reaches position accurately.
Claims (4)
1. one kind is used for automobile burglar, the anti-dynamic static fixing monitoring arrangement of kidnapping of city automobile, by signal emission part, signal receive section and signal processing part branch are formed, its feature is installed by vehicle-mounted transmitter (1) at this, fixed point receiver (2), centre data processor (3), area map display (4) is formed, vehicle-mounted transmitter (1) has a plurality of, be contained in respectively on each automobile, fixed point receiver (2) also has a plurality of, be installed in each crossing intersection part of urban road respectively, centre data processor (3) and area map display (4) are positioned at monitoring central station.
2. the dynamic static fixing monitoring device of city automobile according to claim 1 is characterized in that vehicle-mounted transmitter (1) is made up of startup (1-1), coding (1-2), modulation (1-3), high-frequency emission (1-4), wherein in the coding (1-2), code switch K1, K2 " 2,8 " pin direct respectively and U1-1 " CD5026 " joins, " 3 " pin of U1-2 " MC2831 " and the collector of transistor T 1-0 join in the modulation (1-3), and " 14 " pin of U1-2 joins by the base stage of electric capacity and transistor T 1-1.
3. the dynamic static fixing monitoring device of city automobile according to claim 1, the receiver (2) that it is characterized in that fixing a point comprises bandpass filtering (2-1), digital demodulation (2-2), shaping output (2-3) and transmission circuit (2-4), in bandpass filter (2-1), adopt ceramic filter F1, F2, " 25, the 28 " pin of U2-1 " MC3367 " in the digital demodulation (2-2) directly and wave filter F1 join, " 23,2 " pin is connected with ceramic filter F2.
4. the dynamic static fixing monitoring device of city automobile according to claim 1, it is characterized in that centre data processor (3) comprises interface circuit (3-1) and transmission circuit (3-2), adopt photoelectrical coupler G1, G2 to do the signal input and output in interface circuit (3-1) and isolate, the input end of photoelectrical coupler G1 and the output terminal of G2 be " 10 " pin and " 11 " pin of order sheet microcomputer " 8031 " respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239498 CN2244748Y (en) | 1995-04-03 | 1995-04-03 | Dynamic fixed-point positioning monitor for city automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95239498 CN2244748Y (en) | 1995-04-03 | 1995-04-03 | Dynamic fixed-point positioning monitor for city automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2244748Y true CN2244748Y (en) | 1997-01-08 |
Family
ID=33881265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95239498 Expired - Fee Related CN2244748Y (en) | 1995-04-03 | 1995-04-03 | Dynamic fixed-point positioning monitor for city automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2244748Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082669C (en) * | 1998-12-21 | 2002-04-10 | 东南大学 | Electronic geographic-information positioning method and equipment |
| CN102385801A (en) * | 2010-09-02 | 2012-03-21 | 刘伟南 | Device and method for detecting vehicles by using high-frequency radio waves |
-
1995
- 1995-04-03 CN CN 95239498 patent/CN2244748Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082669C (en) * | 1998-12-21 | 2002-04-10 | 东南大学 | Electronic geographic-information positioning method and equipment |
| CN102385801A (en) * | 2010-09-02 | 2012-03-21 | 刘伟南 | Device and method for detecting vehicles by using high-frequency radio waves |
| CN102385801B (en) * | 2010-09-02 | 2016-02-17 | 刘伟南 | A kind of device using high frequency radio wave to detect vehicle |
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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 |