CN2574067Y - Portable detecting radar - Google Patents
Portable detecting radar Download PDFInfo
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- CN2574067Y CN2574067Y CN 02282526 CN02282526U CN2574067Y CN 2574067 Y CN2574067 Y CN 2574067Y CN 02282526 CN02282526 CN 02282526 CN 02282526 U CN02282526 U CN 02282526U CN 2574067 Y CN2574067 Y CN 2574067Y
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Abstract
The utility model relates to a portable detecting radar, a preamplifier circuit in a radar host computer receives antenna input signals, and is connected with a receiver circuit which is connected with a data time delay circuit, a signal processing device and a control circuit are respectively connected with the preamplifier circuit, the receiver circuit and the data time delay circuit, and a display circuit and the signal processing device are connected with the control circuit. The radar host computer is arranged in a housing body 5, the upper surface of the housing body 5 is provided with a control panel 14 which is provided with control keys, one side of the control panel is provided with a housing body upper opening 8 of which the upper end is connected with an upper cover 6 by a shaft sleeve 31, and the upper cover is provided with a display screen 11. The utility model has the advantages of refined design, small size, light weight, low power consumption, energy saving, environmental protection, single-point fine measurement, continuous measurement, high work efficiency and convenient operation, and can outfit a 50-1000MHz antenna.
Description
Technical field
The utility model relates to a kind of radar, particularly a kind of be used to survey under the top layer bury object, volume is little, portable radar.
Background technology
The radar Dynamic Non-Destruction Measurement is a high-new detection technique.In the eighties of last century later stage eighties, this technology is applied in the detection of roadbed, road surface mechanics index of physics by more American-European countries.Phase also begins to use this technology in geological mapping in the early 1990s in China.
The key that realizes the radar Dynamic Non-Destruction Measurement is detection radar.At present, the detection radar that has only seldom several countries energy stand-alone development to be fit to carry out Non-Destructive Testing in the world.But still there are following defectives in these radars, are unfavorable for promoting the use of.
1. complex structure costs an arm and a leg, and volume and weight own is all bigger, is not easy to portably use, and quite feels inconvenience when working out of doors.
2. some detection radar is adjusted slightly by geological radar and forms, or speed is not enough, or precision is not enough, can not satisfy user's requirement well.
3. some detection radar object that antenna probes is gone up peripherally has special requirement, otherwise result of detection is had tangible influence.
Beijing Aidier International Detection Technology Co., Ltd., has developed the special-purpose detection radar of CBS-9000 vehicle-mounted road, and has obtained china national practical new-type patent (patent No. ZL99200610.4) in conjunction with the actual demand of China at above-mentioned weak point.This vehicular detection radar comprises emitting antenna, receiving antenna, treatment facility, radar host computer, power supply, can continuous detecting, and can accurately locate, to quality testing, the thickness inspection of highway, airfield runway, come to nothing, abnormal conditions such as crack, can both survey with scan mode, make underground foreign matter situation, the trend that distributes etc. can both be presented on the display screen with image mode, truly embodies fully.
But above-mentioned vehicle-mounted road detection radar designs for being installed on the automobile, and volume is bigger, is not suitable for portably using.And in real work, it is suitable with above-mentioned trailer-mounted radar that everybody presses for a kind of performance, but volume and weight is wanted much smaller portable detection radar.
Summary of the invention
The purpose of this utility model is to be not easy to the problem of vehicle-mounted detection at the field environment complexity, provides a kind of for the single portable type detection radar of surveying that carries.For this reason, the utility model has been done significant improvement on the basis of existing product, adopt the design of advanced high resolving power touch LCD screen and soft menu function key, be equipped with full Chinese data collection and process software, use more succinct, convenience, can satisfy the open-air needs of surveying of every field such as public security, airport, railway, building, water conservancy, archaeology, geological mapping.
For realizing above-mentioned goal of the invention, the utility model adopts following technical scheme:
A kind of portable type detection radar, wherein the pre-amplification circuit in the radar host computer connects the signal of antenna input, and be connected with receiver circuit, receiver circuit connects the data delay circuit, signal Processing is connected with pre-amplification circuit, receiver circuit, data delay circuit respectively with control circuit, display circuit is connected with control circuit with signal Processing, it is characterized in that:
Described radar host computer is installed in the casing 5;
Described casing 5 upper surfaces are control panels 14, and operating key is arranged on the control panel, and control panel one side is that casing is suitable for reading 8, and casing upper end suitable for reading is connected with loam cake 6 by axle sleeve 31, and display screen 11 is arranged on the loam cake 6.
The utlity model has deft design, volume is little, and is in light weight, easy to carry, low power operation, the characteristics of energy-conserving and environment-protective.This portable type detection radar is equipped with the 50-1000MHz antenna, have the advantage of single-point accurate measurement and continuous coverage concurrently, high efficiency, simple to operation, ground ordnance and dangerous material are buried in suitable detection, check the building engineering construction quality, survey underground pipe network, carry out archaeological survey, seek underground undercurrent, determine underground water table, occasions such as the distribution of detection mineral ore and trend are used.
Description of drawings
Figure 1 shows that whole mechanical mechanism synoptic diagram of the present utility model.
Figure 2 shows that signal flow of the present utility model is to block diagram.
Figure 3 shows that the circuit theory diagrams of pre-amplification circuit.
Figure 4 shows that the schematic diagram of receiver circuit in the utility model.
Figure 5 shows that the circuit theory diagrams of numerical control delay circuit.
Figure 6 shows that the circuit theory diagrams of control panel A1 in signal Processing and the control circuit.
Figure 7 shows that the circuit theory diagrams of control panel A2 in signal Processing and the control circuit.
Figure 8 shows that a specific embodiment of institute's use antenna.
Figure 9 shows that a specific embodiment of emissive source circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is an integral mechanical structure synoptic diagram of the present utility model.The radar host computer integral installation is in casing 5, casing 5 bottoms are cabinet bases 9, cabinet base has been installed four foots pad 37 for four jiaos, base 9 tops are frame assembly 1, frame assembly 1 offside is the mainboard support 17 that is used to lay motherboard, the place has oblong hole in the middle of the host rack 17, and its upper end is a bearing 16, and bearing 16 is solid on casing 5 by screw 13 spiral shells.Host rack 17 sides slightly upwards place are the support 20 of a ∏ shape.Casing 5 upper surfaces are control panel 14 and panel base plate 15 from the top down successively.Operating key is installed so that whole radar is controlled on the control panel.Operating key is soft menu function key.Control panel one side is that casing is suitable for reading 8, and casing 8 lower ends suitable for reading are controller card extenders 26, and the upper end is connected with loam cake 6 by axle sleeve 31.Casing suitable for reading with loam cake between cooperate rigorously, no flu spacer relies on axle sleeve friction force, loam cake can stop at an arbitrary position.Loam cake 6 is loam cake cover plate 7 from the top down successively, and screen pressing plate 10 and display screen 11 are fixed together by screw 33 and 34 between them.Loam cake cover plate outermost is a box fastener 32.When radar does not use, can loam cake 6 and casing 5 be held together, be easy to carry by box fastener.Adopt riveted and fixed between casing 5 and casing suitable for reading 8 and the cabinet base 9.Simultaneously, because the reasonable Arrangement of air inlet and fan forms convection current, has best radiating effect.
The signal flow that Figure 2 shows that this detection radar is to block diagram.For this radar installations, its course of work is such: at first launch frequency electromagnetic waves by external emitting antenna to the position that will survey, frequency electromagnetic waves is after the object reflection, receive by the receiving antenna on the radar, amplify through pre-amplification circuit, enter receiver circuit and handle, connect display circuit through behind the signal Processing that comprises microprocessor and the control circuit again, by the image of the display screen demonstration object of surveying.Signal Processing is connected with pre-amplification circuit, receiver circuit, data delay circuit respectively with control circuit, so that it is controlled.The data delay circuit is connected with receiver circuit.In this detection radar, employed display screen is a LCDs.
Figure 3 shows that the circuit theory diagrams of pre-amplification circuit.The effect of pre-amplification circuit is that the reflection of radar wave signal that receives the antenna end input is amplified, so that receiver circuit is handled.J1 termination receiving antenna in the circuit.Input signal meets amplifier A1 behind the LC filtering circuit after the J1 input, meet amplifier A2 again behind LC filtering circuit secondary filtering, and the signal after A2 amplifies meets amplifier A3 again, connects output terminal J2 output behind amplifier E4.In pre-amplification circuit, A2 and A3 are parallel with the circuit that inductance, resistance, capacitance series become.
Fig. 4 is the schematic diagram of receiver circuit in the utility model.Receiver circuit is a core circuit of the present utility model, and it can be divided into the sampling gate part, sampling pulse generator part, bias voltage and squegger part, comparer and step-by-step impulse generator part and AC amplifier and prolongation circuit part.Be illustrated respectively below.
After the pre-amplification circuit amplifying signal enters high-frequency socket X1 in the sampling gate part, connect the bridge sampling gate that four switch diodes are formed, behind field effect transistor V105, export again.Its output terminal is designated as U1.In addition two ends at bridge sampling gate connect the former limit of transformer T101 and an end of secondary respectively, and the other end of former limit of T101 and secondary accesses two the input end U3 and the U2 of sample pulse generator part respectively.
Two the input end U3 and the U2 of sampling pulse generator part meet switch diode V109 and V110 respectively, but the diode current flow direction is opposite.The two ends of silicon step-recovery diode (SRD) V108 connect the end of V109 and V110 respectively, and simultaneously its two ends join with former limit and the secondary of transformer T102 respectively.T102 meets triode V106 through resistance R 114 and capacitor C 107.The base stage of triode V106 meets output terminal U7 through capacitor C 104, and collector meets output terminal U6 through resistance R 109 and capacitor C 105.
Two input end U4 of bias voltage and squegger part and U5 join with two the input end U3 and the U2 of sampling pulse generator part respectively.Mainly form the bias voltage part in bias voltage and the squegger part, and export through output terminal U8 by triode V111 and resistance R 137, R138, R139.Squegger part is mainly by transformer T103, T104, transistor V113, and potentiometer R142 and resistance, electric capacity are formed.The output terminal U6 of sampling pulse generator part connects one side of 5:5 transformer T103, the another side of T103 meets three end transformer T104 after capacitor C 117, the both sides of T104 connect base stage and the collector of triode V113 respectively, and the emitter-base bandgap grading of V113 meets the potentiometer R142 in parallel with capacitor C 118.The another side of T104 is in parallel with resistance R 145, one end ground connection, another termination output terminal U9.
For guaranteeing to take off the sample that is detected different piece on the waveform, require sampling pulse to have the function of stepping time-delay, promptly with respect to some with reference to constantly, the moment of the bridge sampling gate of each sampling pulse in the sampling gate part must increase an amount of delay in turn.This function is finished by comparer.In comparer and step-by-step impulse generator part, introduce voltage signal by the X4 end, this signal is the oblique faster time variant voltage signal of slope variation, is called fast oblique wave.Introduce the U10 end signal by variable resistor R342, this signal slope changes slower oblique time variant voltage signal, is called slow oblique wave.When both level were consistent, comparer produced output voltage, and simultaneously, sampling pulse generator also produces sampling pulse.Obviously, because two input ends of comparer add the voltage signal that changes, relatively threshold level also and then changes, and the output of comparer and step-by-step impulse generator part is exactly the row pulse with stepping time-delay like this, and this pulse is through the output of U7 end.
AC amplifier and prolongation circuit part are mainly by resistance R 201～R230, capacitor C 201～C215, diode V1, V2, V204～V207, triode V3, V4, V201～V203, V209, V210, field effect transistor V208, stabilivolt V211, relay K 1, K2,15:15:15 transformer T201 forms.The structure of this partial circuit belongs to the technology of comparative maturity.Repeat no more herein.Input signal inserts from the output terminal U1 of sampling gate part, after transistor amplifier amplifies, is exported to by the X5 end and to carry out A/D in the A/D transducer in signal Processing and the control circuit and change.
Figure 5 shows that the circuit theory diagrams of numerical control delay circuit.The trigger pulse of signal Processing and control circuit output is imported through the B1 interface, send into 2 pin of two monostable trigger IC1,3 pin of IC1 connect 8 pin of digital potentiometer IC2～IC5,3 pin of IC1,11 pin, 14 pin, 15 pin, 16 pin connect output terminal 3 pin of three terminal regulator U1 respectively, 10 pin and 13 pin of IC1 connect capacitor C 114 simultaneously, connect the B2 interface through diode D107 and 5:5 transformer TP3 again, outwards output to the input end of the fast ramp generator in the receiver circuit, 5 pin of IC1 are successively through capacitor C 112, diode D105,5:5 transformer TP2, triode Q101,5:5 transformer TP4 connects the B3 interface after the capacitor C 119, outwards output in the emissive source circuit and make trigger pip.Receive echoed signal from the antenna emission until receiving antenna because transmit, one section delay time is unavoidably always arranged, for the echoed signal waveform of going bail for falls in the display window, it is necessary that above-mentioned numerical control delay circuit is set.
Signal Processing and control circuit are divided into control panel A1 and A2, are presented at respectively among Fig. 6 and Fig. 7.In control panel A1, D13 is A/D transducer AD7884, and its resolution is 16bit, be 5.3 microseconds switching time, and as shown in Figure 6, its input end receives receiver circuit and passes the simulating signal of coming, carry out meeting latch D9 and D10 after the A/D conversion, insert in the bus again.D12 is the AD-DAC85-V converter, and resolution is 12bit, and be 1 microsecond switching time.Its input termination analog switch D16, output termination latch D8 and D11, D8 and D11 meet latch D7 again, and 11 pin of D7 connect 7 pin of code translator D3 behind impact damper D1.Analog switch D16 meets latch D6.The output terminal of D6, D7, D8, D15 meets impact damper D5 simultaneously, connects bus through D5 again.3,5,7,9,12,14 pin of Sheffer stroke gate D4 connect 1,2,3,6 pin on bus and the D3 respectively, and its 19 pin connects 5 pin on the D3.Figure 7 shows that the circuit theory diagrams of control panel A2.Wherein N1 is an operational amplifier, and its output termination X1 imports 15 pin and 18 pin of termination AD-DAC85-V converter D19 in the same way, and the digital end E0 of D19～E11 pin meets latch D12 and D16, and D16 meets latch D8.The X3 end is divided into data terminal and 3 gating signal ends of three groups 8, and three groups 8 data terminal meets impact damper D11, latch D14, D18 respectively, and D11 meets latch D7 again, and D14, D18 meet impact damper D15 simultaneously.3 input signal ends meet photoelectrical coupler D17 respectively, enter among the 8253 counter D5 after photoelectricity isolation of input signal process and the Schmidt circuit shaping.The read-write control end RD of D5, WR, A0, A1 connect 1Y1～1Y4 pin of impact damper D2.The data terminal of D5, D7, D8, D12, D15 inserts the data terminal of impact damper D4 simultaneously, inserts bus through D4.
The utility model can be matched the various antennas of 50-1000MHz.Can adopt the wire communication mode between antenna and the radar host computer, as utilize communication cable, optical fiber to communicate, also can adopt communication.Fig. 8 is a specific embodiment of institute's use antenna.Wherein, 1 is input, accessory power outlet, and 2 is the high-performance absorbing material, and 3 is the aerial radiation page, and 4 is the emissive source circuit, and 5 is to screening can behind the metal.
Emissive source circuit in the antenna can adopt existing multiple ripe circuit.Figure 9 shows that a specific embodiment of emissive source circuit.The trigger pip of drawing from the numerical control delay circuit enters triode Q1 after capacitor C 0, connect the former limit of transformer T1 behind emitter-base bandgap grading.The secondary of T1 meets capacitor C 4 and C5 respectively, and C4 and C5 meet triode Q2 and Q3 respectively, and the collector of Q2 and Q3 meets variable capacitance C7 and C8 respectively, the other end of C7 and the C8 output terminal that is connected together, externally transmitting radar waves.
Microprocessor that is adopted in the utility model and LCDs all are existing matured product, and wherein LCDs is 800 * 600LCD, also have the data of a hard disk with record acquisition in addition in the main frame.They insert by bus.Microprocessor is transformed to figure signal to carrying out computing through the data of A/D conversion with it, shows through bus input LCD.Also have complete serial/parallel line interface on the main frame of the present utility model, can external connection keyboard, printer, peripheral hardwares such as display.
The basic mechanical design feature index of this portable type detection radar is as follows:
System-gain: 〉=160dB, emissive source pulse height: 40-1500V, jitter rate :≤25ps, bandwidth: DC-1GHz (3db), time window scope: 1-5000ns, sampling number: 256-4096, sampling interval:＜3ps, minimum time resolution:＜25ps, system power dissipation:＜60W, working temperature :-10-+50 ℃.
The main frame weight of this detection radar is not more than 13 kilograms, and physical dimension is 30 centimetres of 34 cm x, 26 cm x.The employed power supply of detection radar is 12V direct supply and 220V AC power.
What need statement is that specific embodiment of the present utility model has been done detailed explanation to summary of the invention of the present utility model.For one of ordinary skill in the art, the any conspicuous change of under the prerequisite that does not deviate from the utility model spirit, it being done, particularly, all constitute to the utility model infringement of patent right, with corresponding legal responsibilities to the replacement that is equal to of some parts.
Claims (5)
1. portable type detection radar, wherein the pre-amplification circuit in the radar host computer connects the signal of antenna input, and be connected with receiver circuit, receiver circuit connects the data delay circuit, signal Processing is connected with pre-amplification circuit, receiver circuit, data delay circuit respectively with control circuit, display circuit is connected with control circuit with signal Processing, it is characterized in that:
Described radar host computer is installed in the casing (5);
Described casing (5) upper surface is control panel (14), and operating key is arranged on the control panel, and control panel one side is casing (8) suitable for reading, and casing upper end suitable for reading is connected with loam cake (6) by axle sleeve (31), and display screen (11) is arranged on the loam cake (6).
2. portable type detection radar as claimed in claim 1 is characterized in that:
Described cabinet base (9) top is frame assembly (1), and the frame assembly offside is mainboard support (17), and the host rack upper end is bearing (16), and bearing is fixed on the casing (5), and host rack side slightly upwards place is the support (20) of a ∏ shape.
3. portable type detection radar as claimed in claim 1 is characterized in that:
Described display screen is a touch LCD screen.
4. portable type detection radar as claimed in claim 1 is characterized in that:
Described operating key is soft menu function key.
5. portable type detection radar as claimed in claim 1 is characterized in that:
Described receiver circuit comprises sampling gate part, sampling pulse generator part, bias voltage and squegger part, comparer and step-by-step impulse generator part and AC amplifier and prolongs circuit part, wherein the sampling gate part is connected with AC amplifier and prolongation circuit part with sampling pulse generator part, comparer partly is connected with the sampling pulse generator with step-by-step impulse generator part, and sampling pulse generator part partly is connected with squegger with bias voltage with AC amplifier and prolongation circuit part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282526 CN2574067Y (en) | 2002-10-14 | 2002-10-14 | Portable detecting radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282526 CN2574067Y (en) | 2002-10-14 | 2002-10-14 | Portable detecting radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574067Y true CN2574067Y (en) | 2003-09-17 |
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ID=33744594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02282526 Expired - Fee Related CN2574067Y (en) | 2002-10-14 | 2002-10-14 | Portable detecting radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574067Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150332563A1 (en) * | 2014-05-19 | 2015-11-19 | Donnell A. Davis | Wearable Pedestrian Safety Radar System |
| CN110715706A (en) * | 2019-11-25 | 2020-01-21 | 重庆宇虹自动化仪表系统有限公司 | Portable nondestructive parameter detector for sauce-flavor pottery jar |
| CN111948668A (en) * | 2020-07-24 | 2020-11-17 | 哈尔滨工业大学 | Wake bubble unit detection device |
-
2002
- 2002-10-14 CN CN 02282526 patent/CN2574067Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150332563A1 (en) * | 2014-05-19 | 2015-11-19 | Donnell A. Davis | Wearable Pedestrian Safety Radar System |
| US9655390B2 (en) * | 2014-05-19 | 2017-05-23 | Donnell A. Davis | Wearable pedestrian safety radar system |
| CN110715706A (en) * | 2019-11-25 | 2020-01-21 | 重庆宇虹自动化仪表系统有限公司 | Portable nondestructive parameter detector for sauce-flavor pottery jar |
| CN110715706B (en) * | 2019-11-25 | 2021-08-13 | 重庆宇虹自动化仪表系统有限公司 | Portable nondestructive parameter detector for sauce-flavor pottery jar |
| CN111948668A (en) * | 2020-07-24 | 2020-11-17 | 哈尔滨工业大学 | Wake bubble unit detection device |
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| 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 |