CN210323362U - Miniature medium-long distance digital laser ranging device - Google Patents
Miniature medium-long distance digital laser ranging device Download PDFInfo
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- CN210323362U CN210323362U CN201920539208.9U CN201920539208U CN210323362U CN 210323362 U CN210323362 U CN 210323362U CN 201920539208 U CN201920539208 U CN 201920539208U CN 210323362 U CN210323362 U CN 210323362U
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Abstract
A miniature medium-long distance digital laser ranging device comprises a transmitting unit, a sensing unit, a control unit and a power supply unit; the transmitting unit comprises a laser; the induction unit comprises a detector, the detector is electrically connected with a filter, and the filter is electrically connected with an AD signal conversion circuit; the control unit comprises a main controller, the main controller is electrically connected with the detector through a program-controlled high-voltage generating circuit, the main controller is electrically connected with an upper computer and a digital information processor, and the digital information processor is electrically connected with the AD signal conversion circuit and the laser; the power supply unit is electrically connected with the detector, the filter, the AD signal conversion circuit, the digital information processor, the main controller and the laser. The utility model provides a remote digital laser rangefinder in miniature, when improving measurement accuracy more integration and miniaturization.
Description
Technical Field
The utility model relates to a laser rangefinder technical field, specific long-range digital laser rangefinder in miniature that says so.
Background
The digital laser range finder has very important position in the laser range finding field because of its low power consumption, fast, disguised and the characteristics of security of testing the speed, traditional pulse laser range finding system based on analog signal ubiquitous components and parts are more, the weight is heavier, characteristics such as interference killing feature weak are unfavorable for realizing whole laser range finder's integration and miniaturization, unable make full use of the relevant information between the pulse, have the restriction on precision and farthest measuring distance.
SUMMERY OF THE UTILITY MODEL
In order to solve the not enough among the prior art, the utility model provides a remote digital laser rangefinder in miniature, when improving measurement accuracy integration more and miniaturization.
In order to achieve the above object, the utility model discloses a concrete scheme does: a miniature medium-long distance digital laser ranging device comprises a transmitting unit, a sensing unit, a control unit and a power supply unit; the transmitting unit comprises a laser; the induction unit comprises a detector, the detector is electrically connected with a filter, and the filter is electrically connected with an AD signal conversion circuit; the control unit comprises a main controller, the main controller is electrically connected with the detector through a program-controlled high-voltage generating circuit, the main controller is electrically connected with an upper computer and a digital information processor, and the digital information processor is electrically connected with the AD signal conversion circuit and the laser; the power supply unit is electrically connected with the detector, the filter, the AD signal conversion circuit, the digital information processor, the main controller and the laser.
As a preferred scheme, the digital information processor is electrically connected to a trigger signal driving circuit, and the trigger signal driving circuit is electrically connected to the laser.
As a preferred scheme, the power supply unit includes a first voltage converter, a second voltage converter, a third voltage converter and a fourth voltage converter, the first voltage converter, the third voltage converter and the fourth voltage converter are all electrically connected to the second voltage converter, the first voltage converter is electrically connected to the main controller, the second voltage converter is electrically connected to the program-controlled high voltage generating circuit and the detector, the third voltage converter is electrically connected to the filter, the AD signal converting circuit and the digital information processor, and the fourth voltage converter is electrically connected to the digital information processor.
Preferably, the laser is a 1550 semiconductor laser.
Preferably, the detector is an InGaAs type detector.
Preferably, the master controller is configured as an STM32 processor.
Has the advantages that: the utility model discloses an analog-digital circuit's combination has reduced the requirement to laser energy, effectively reduces the consumption, raises the efficiency to realized the miniaturization of system, satisfied embedded real-time processing's demand. And the output voltage is adjusted in real time by utilizing the high-voltage control generation circuit, so that the avalanche high-voltage characteristic of the detector along with the temperature change is adapted, and the receiving sensitivity of the detector is ensured to be continuously in a higher state.
Drawings
Fig. 1 is a block diagram of the overall structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a micro medium-and long-distance digital laser ranging device includes a transmitting unit, a sensing unit, a control unit, and a power supply unit.
The transmitting unit includes a laser.
The induction unit comprises a detector, the detector is electrically connected with a filter, and the filter is electrically connected with an AD signal conversion circuit.
The control unit comprises a main controller, the main controller is electrically connected with the detector through a program-controlled high-voltage generating circuit, the main controller is electrically connected with an upper computer and a digital information processor, and the digital information processor is electrically connected with the AD signal conversion circuit and the laser.
The power supply unit is electrically connected with the detector, the filter, the AD signal conversion circuit, the digital information processor, the main controller and the laser.
The utility model discloses when using, the host computer sends range finding order to main control unit, main control unit passes through digital information processor control laser instrument transmission narrow pulse laser beam, laser shines on being surveyed the target and returns through diffuse reflection after sending from the laser instrument, the detector receives behind the laser signal who returns, send into the signal after the signal of telecommunication and handle the back with the filter, rethread AD signal conversion circuit sampling converts digital signal into, give digital information processor, obtain target distance information after the operation analysis, send into main control unit, last main control unit will handle and show in sending the host computer apart from target distance information.
The utility model discloses an analog-digital circuit's combination has reduced the requirement to laser energy, effectively reduces the consumption, raises the efficiency to realized the miniaturization of system, satisfied embedded real-time processing's demand. And the output voltage is adjusted in real time by utilizing the high-voltage control generation circuit, so that the avalanche high-voltage characteristic of the detector along with the temperature change is adapted, and the receiving sensitivity of the detector is ensured to be continuously in a higher state.
Furthermore, the digital information processor is electrically connected with a trigger signal driving circuit, and the trigger signal driving circuit is electrically connected with the laser. The specific method for controlling the laser to emit the narrow pulse laser beam by the digital information processor comprises the following steps: the digital information processor sends out pulses with specific frequency and specific number to the trigger signal driving circuit to trigger the laser to emit narrow pulse laser beams, and each pulse is added with specific compensation to serve as a signal for starting timing.
Furthermore, the power supply unit comprises a first voltage converter, a second voltage converter, a third voltage converter and a fourth voltage converter, the first voltage converter, the third voltage converter and the fourth voltage converter are electrically connected with the second voltage converter, the first voltage converter is electrically connected with the main controller, the second voltage converter is electrically connected with the program-controlled high-voltage generating circuit and the detector, the third voltage converter is electrically connected with the filter, the AD signal conversion circuit and the digital information processor, and the fourth voltage converter is electrically connected with the digital information processor. The second voltage converter is electrically connected with the external power supply, so that the first adjustment of the external power supply is realized, and then the second adjustment is performed through the first voltage converter, the third voltage converter and the fourth voltage converter respectively, so that different parts are supplied with power.
In the present embodiment, the laser is provided as a 1550 semiconductor laser. The detector is configured as an InGaAs type detector. The main controller is set to an STM32 processor. The frequency of the AD signal conversion circuit is 50MHz, so that the ranging accuracy is kept within + -3 m. The first voltage converter, the third voltage converter and the fourth voltage converter are all TPS74201, the second voltage converter is LM2574, the filter is TLV8802, the AD signal conversion circuit is AD9235, the digital information processor is DSPIC33FJ256GP710, the trigger signal driving circuit is CAHCT1G126QDCKRQ1, the main controller is STM32F103RET6, the program-controlled high voltage generation circuit is MAX1932, the detector is set to be GD6511Y avalanche detector module, and the laser is HI155G1S07X human eye safety laser.
Further, the specific connection manner between the respective components is as follows.
The first input end of the detector is connected with the third output end of the second voltage converter, the second input end of the detector is connected with the output end of the program-controlled high-voltage generating circuit, the output end of the detector is connected with the first input end of the filter, the first output end of the second voltage converter is connected with the input end of the first voltage converter, the second output end of the second voltage converter is connected with the first input end of the program-controlled high-voltage generating circuit, the fourth output end of the second voltage converter is connected with the input end of the third voltage converter, the fifth output end of the second voltage converter is connected with the second input end of the laser, the second input end of the program-controlled high-voltage generating circuit is connected with the first port of the main controller, the output end of the filter is connected with the first input end of the AD signal converting circuit, and the second input end of the filter is connected with the, the second input end of the AD signal conversion circuit is connected with the third output end of the third voltage converter, the output end of the AD signal conversion circuit is connected with the first port of the digital information processor, the second port of the digital information processor is connected with the fourth output end of the third voltage converter, the third port of the digital information processor is connected with the output end of the fourth voltage converter, the fourth port of the digital information processor is connected with the input end of the trigger signal driving circuit, the fifth port of the digital information processor is connected with the second port of the main controller, the input end of the fourth voltage converter is connected with the fifth output end of the third voltage converter, the output end of the trigger signal driving circuit is connected with the first input end of the laser, the fourth port of the main controller is connected with the output end of the first voltage converter, and an upper computer is connected with the third port of the main controller, and the upper computer sends a related ranging command and receives and displays a ranging value.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides a long-range digital laser rangefinder in miniature which characterized in that: the device comprises a transmitting unit, a sensing unit, a control unit and a power supply unit;
the transmitting unit comprises a laser;
the induction unit comprises a detector, the detector is electrically connected with a filter, and the filter is electrically connected with an AD signal conversion circuit;
the control unit comprises a main controller, the main controller is electrically connected with the detector through a program-controlled high-voltage generating circuit, the main controller is electrically connected with an upper computer and a digital information processor, and the digital information processor is electrically connected with the AD signal conversion circuit and the laser;
the power supply unit is electrically connected with the detector, the filter, the AD signal conversion circuit, the digital information processor, the main controller and the laser.
2. A miniature medium to long distance digital laser ranging device as defined in claim 1, wherein: the digital information processor is electrically connected with a trigger signal driving circuit, and the trigger signal driving circuit is electrically connected with the laser.
3. A miniature medium to long distance digital laser ranging device as defined in claim 1, wherein: the power supply unit comprises a first voltage converter, a second voltage converter, a third voltage converter and a fourth voltage converter, the first voltage converter, the third voltage converter and the fourth voltage converter are all electrically connected with the second voltage converter, the first voltage converter is electrically connected with the main controller, the second voltage converter is electrically connected with the program-controlled high-voltage generating circuit and the detector, the third voltage converter is electrically connected with the filter, the AD signal conversion circuit and the digital information processor, and the fourth voltage converter is electrically connected with the digital information processor.
4. A miniature medium to long distance digital laser ranging device as defined in claim 1, wherein: the laser is set to 1550 semiconductor laser.
5. A miniature medium to long distance digital laser ranging device as defined in claim 1, wherein: the detector is arranged as an InGaAs type detector.
6. A miniature medium to long distance digital laser ranging device as defined in claim 1, wherein: the master controller is set to an STM32 processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539208.9U CN210323362U (en) | 2019-04-19 | 2019-04-19 | Miniature medium-long distance digital laser ranging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920539208.9U CN210323362U (en) | 2019-04-19 | 2019-04-19 | Miniature medium-long distance digital laser ranging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210323362U true CN210323362U (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920539208.9U Active CN210323362U (en) | 2019-04-19 | 2019-04-19 | Miniature medium-long distance digital laser ranging device |
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| Country | Link |
|---|---|
| CN (1) | CN210323362U (en) |
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- 2019-04-19 CN CN201920539208.9U patent/CN210323362U/en active Active
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