CN207051504U

CN207051504U - Gpr

Info

Publication number: CN207051504U
Application number: CN201720804169.1U
Authority: CN
Inventors: 郝星星; 谢洁填; 刘泓希
Original assignee: Central (shenzhen) Equipment Inspection And Testing Technology Co Ltd
Current assignee: Central (shenzhen) Equipment Inspection And Testing Technology Co Ltd
Priority date: 2017-07-05
Filing date: 2017-07-05
Publication date: 2018-02-27
Anticipated expiration: 2027-07-05

Abstract

The utility model discloses a kind of GPR, the problem of wasting electricity is persistently detected when stopping mobile for existing GPR, following technical scheme is provided, including starts timing in response to the trigger signal of moving cart halted state to export the time set of timing signal, be electrically connected with time set and the switching device to control detection means to stop detection being disconnected in response to timing signal；When moving cart stops mobile, the trigger signal that moving cart corresponds to halted state makes time set start timing, time set exports timing signal, and the length of timing duration is greater than the value that detection means carries out the duration required for normal detection, timing signal after switching device terminates in response to timing disconnects, and then detection means is controlled to stop detection, avoid the occurrence of dolly and stop the generation that mobile but detection means still uninterruptedly carries out detection case for a long time, contribute to the electricity of saving GPR, while the service life of growth detection device to a certain extent.

Description

GPR

Technical field

Geological exploration field is the utility model is related to, more specifically, it relates to a kind of GPR.

Background technology

GPR is to launch frequency electromagnetic waves to underground by transmitting antenna, is received by reception antenna and is reflected back ground Electromagnetic wave, electromagnetic wave reflects when the interface that electrical property difference be present is run into when being propagated in underground medium, according to reception The features such as waveform, oscillator intensity and the change of time of the electromagnetic wave arrived infer the locus of underground medium, structure, form and Buried depth.

In the prior art, GPR mainly includes moving cart and the detection means being arranged in moving cart, In use, if moving cart does not move for a long time, detection means still can be detected persistently for a long time, not only wasted and visited ground The electricity of radar, the service life of detection means is had an effect on, therefore there is improved space.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of GPR, has and save The advantages of electricity.

To achieve the above object, the utility model provides following technical scheme：

A kind of GPR, including start timing in response to the trigger signal of moving cart halted state to export timing letter Number time set, with time set be electrically connected with and in response to timing signal disconnect with control detection means stop detection open Close device.

Using above-mentioned technical proposal, when moving cart stops mobile, moving cart corresponds to the trigger signal of halted state Time set is set to start timing, time set output timing signal, and the length of timing duration is greater than detection means and carried out just The often value of the duration required for detection, the timing signal after switching device terminates in response to timing disconnect, and then control detection dress Stopping detection being put, dolly is avoided the occurrence of and stops the generation that mobile but detection means still uninterruptedly carries out detection case for a long time, have Help save the electricity of GPR, while the service life of growth detection device to a certain extent.

Preferably, the time set includes starting timing output timing signal in response to the trigger signal of halted state Monostable flipflop circuit.

Preferably, the time set also includes being used for the regulation circuit for adjusting monostable flipflop circuit timing duration.

Using above-mentioned technical proposal, the continually changing oscillator signal of low and high level of the exportable stabilization of monostable flipflop, Regulation circuit supports the duration of regulation timing in addition, so as to adjust the duration actually measured.

Preferably, the monostable flipflop circuit includes NE555 chip ICs 1, electric capacity C1, electric capacity C2, the regulation electricity 4 pins series connection of the road including slide rheostat RP, NE555 is non-to be connected to moving cart to receive the triggering of halted state letter behind the door Number, 7 pins that NE555 8 pins are connected to power supply VCC, NE555 are connected to a slide rheostat RP fixing end, slide and become Resistance device RP another fixing end and mobile terminal are connected to power supply VCC, NE555 2 pins, 6 pins and 7 pin series capacitances It is grounded after C1, is grounded after NE555 5 pin series capacitance C2, NE555 3 pins output timing signal.

Preferably, the switching device include in response to timing signal conducting transistor switching circuit and be controlled by three The conducting of pole pipe on-off circuit with stop power supply to detection means relay switching circuit.

Preferably, the transistor switching circuit includes triode VT1, the resistance R5 of NPN type, relay switching circuit bag Relay KM1, diode D1 are included, wherein, triode VT1 base stage is connected to 3 pins of NE555 chips to receive timing letter Number, while power supply VCC is connected to after triode VT1 base series resistor R5, triode VT1 colelctor electrode is connected to power supply It is grounded after VCC, triode VT1 emitter stage SRE KM1, triode VT1 emitter stage is connected to diode D1 the moon Pole, diode D1 plus earth, relay KM1 normally closed type switch contacts are connected in the power supply circuit of detection means.

Preferably, the relay switching circuit be also electrically connected with for prompt detection means whether detection display Portion.

Preferably, the display part is the LED 1 for being controlled by relay KM1.

Using above-mentioned technical proposal, by the prompting of display part, user can know whether GPR is detecting in time.

In summary, the utility model has the advantages that：

When moving cart stops mobile, the trigger signal that moving cart corresponds to halted state makes time set start to count When, time set output timing signal, and the length of timing duration be greater than detection means carry out required for normal detection when Long value, the timing signal after switching device terminates in response to timing disconnects, and then controls detection means to stop detection, avoids out Existing dolly stops the generation that mobile but detection means still uninterruptedly carries out detection case for a long time, helps to save GPR Electricity, while the service life of growth detection device to a certain extent.

Brief description of the drawings

Fig. 1 is the theory diagram of the utility model embodiment；

Fig. 2 is the circuit theory diagrams of the utility model embodiment.

In figure：1st, moving cart；2nd, time set；21st, monostable flipflop circuit；22nd, circuit is adjusted；3rd, switch dress Put；31st, transistor switching circuit；32nd, relay switching circuit；4th, detection means；5th, display part.

Embodiment

Below in conjunction with the accompanying drawings and embodiment, the utility model is described in detail.

A kind of GPR, reference picture 1 and Fig. 2, including start in response to the trigger signal of the halted state of moving cart 1 Timing is examined with exporting the time set 2 of timing signal, being electrically connected with time set 2 and disconnected in response to timing signal with controlling The switching device 3 that device 4 stops detection being surveyed, moving cart 1 moves or stops that corresponding low and high level signal, this implementation will be had The trigger signal of halted state refers to low level signal when moving cart 1 stops mobile in example.

Reference picture 1 and Fig. 2, time set 2 include starting timing output timing in response to the trigger signal of halted state The monostable flipflop circuit 21 of signal, time set 2 also include being used to adjust the timing duration of monostable flipflop circuit 21 Adjust circuit 22.

The physical circuit of time set 2 is connected as：Monostable flipflop circuit 21 include NE555 chip ICs 1, electric capacity C1, Electric capacity C2, regulation circuit 22 include slide rheostat RP, the NE555 non-moving cart 1 that is connected to behind the door of 4 pins series connection with reception The trigger signal of halted state, 7 pins that NE555 8 pins are connected to power supply VCC, NE555 are connected to slide rheostat RP's One fixing end, slide rheostat RP another fixing end and mobile terminal be connected to power supply VCC, NE555 2 pins, 6 pins with And 7 be grounded after pin series capacitance C1, it is grounded after NE555 5 pin series capacitance C2, NE555 3 pins output timing letter Number.

Reference picture 1 and Fig. 2, switching device 3 include in response to timing signal conducting transistor switching circuit 31 and It is controlled by the conducting of transistor switching circuit 31 to stop the relay switching circuit 32 powered to detection means 4.

The physical circuit of switching device 3 is connected as：Transistor switching circuit 31 includes triode VT1, the resistance of NPN type R5, relay switching circuit 32 include relay KM1, diode D1, wherein, triode VT1 base stage is connected to NE555 chips 3 pins to receive timing signal, while power supply VCC is connected to after triode VT1 base series resistor R5, triode VT1 Colelctor electrode be connected to power supply VCC, be grounded after triode VT1 emitter stage SRE KM1, triode VT1 emitter stage Diode D1 negative electrode, diode D1 plus earth are connected to, relay KM1 normally closed type switch contacts are connected on detection dress Put in 4 power supply circuit.

In addition, relay switching circuit 32 be also electrically connected with for prompt detection means 4 whether detection display part 5, display part 5 is adopted as the LED 1 for being controlled by relay KM1 in the present embodiment.

The operation principle and the course of work of the present embodiment：

When measuring, moving cart 1 is constantly mobile to measure different positions, and when moving cart 1 stops, it is low The trigger signal of level makes time set 2 start timing and exports low level timing signal, detection means 4 in timing time Detection is completed, and after timing terminates, switching device 3 disconnects in response to the high level timing signal that time set 2 exports, and then Stop powering to detection means 4, stop detection, avoiding the occurrence of dolly, stopping is mobile for a long time but detection means 4 is still uninterruptedly entered The generation of row detection case, help to save the electricity of GPR, while the use longevity of growth detection device 4 to a certain extent Life.Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to above-mentioned Embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should be pointed out that pair For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from, These improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims

1. a kind of GPR, it is characterized in that：Including in response to the trigger signal of moving cart (1) halted state start timing with The time set (2) of timing signal is exported, is electrically connected with time set (2) and is disconnected in response to timing signal to control detection Device (4) stops the switching device (3) of detection.

2. GPR according to claim 1, it is characterized in that：The time set (2) is included in response to halted state Trigger signal start timing output timing signal monostable flipflop circuit (21).

3. GPR according to claim 2, it is characterized in that：The time set (2) also includes monostable for adjusting The regulation circuit (22) of state flip-flop circuit (21) timing duration.

4. GPR according to claim 3, it is characterized in that：The monostable flipflop circuit (21) includes NE555 Chip IC 1, electric capacity C1, electric capacity C2, the 4 pins series connection that the regulation circuit (22) includes slide rheostat RP, NE555 are non-behind the door Moving cart (1) is connected to receive the trigger signal of halted state, NE555 8 pins are connected to the 7 of power supply VCC, NE555 Pin is connected to a slide rheostat RP fixing end, and slide rheostat RP another fixing end and mobile terminal are connected to power supply It is grounded after VCC, NE555 2 pins, 6 pins and 7 pin series capacitance C1, is grounded after NE555 5 pin series capacitance C2, NE555 3 pins output timing signal.

5. GPR according to claim 1, it is characterized in that：The switching device (3) is included in response to timing signal The transistor switching circuit (31) of conducting and it is controlled by the conducting of transistor switching circuit (31) to stop giving detection means (4) The relay switching circuit (32) of power supply.

6. GPR according to claim 5, it is characterized in that：The transistor switching circuit (31) includes NPN type Triode VT1, resistance R5, relay switching circuit (32) include relay KM1, diode D1, wherein, triode VT1 base Pole is connected to 3 pins of NE555 chips to receive timing signal, while is connected to after triode VT1 base series resistor R5 Power supply VCC, triode VT1 colelctor electrode are connected to power supply VCC, are grounded after triode VT1 emitter stage SRE KM1, Triode VT1 emitter stage is connected to diode D1 negative electrode, diode D1 plus earth, and relay KM1 normally closed type touches Head switch is connected in the power supply circuit of detection means (4).

7. GPR according to claim 6, it is characterized in that：The relay switching circuit (32) is also electrically connected with For prompt detection means (4) whether detection display part (5).

8. GPR according to claim 7, it is characterized in that：The display part (5) is the hair for being controlled by relay KM1 Optical diode LED1.