CN101598787B

CN101598787B - Analog test device of laser ranger

Info

Publication number: CN101598787B
Application number: CN2009100653261A
Authority: CN
Inventors: 周磊; 吕瑞云; 王淑一
Original assignee: Henan Costar Group Co Ltd
Current assignee: Henan Costar Group Co Ltd
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2012-04-18
Anticipated expiration: 2029-06-30
Also published as: CN101598787A

Abstract

The invention discloses an analog test device of a laser ranger, belonging to the technical field of photoelectric test devices. The device is provided with a shell; the shell is provided with a status marking light, a digital display tube, a function operation key and a socket; wherein, the shell is internally provided with an analog ranging control module, an analog upper computer control transmission module, a data display module, a status display module and a signal input module, which are connected with a tested processing plate; the analog ranging control module generates analog main wave sampling and echo signals and sends the signals to the tested processing plate for counting processing; 29.97MHz signals, single/repeated frequency signals and trigger signals output by the tested processing plate are connected with the analog ranging control module; the tested processing plate is communicated with the analog upper computer control transmission module by signals; the data display module is used for displaying test data. The device has the characteristics of convenient test, powerful functions, relatively high efficiency, good expandability, modularized functions and easy upgrading, and can be configured in diversified laser rangers for analog test.

Description

A kind of analog test device of laser ranger

Technical field

The invention belongs to the Photoelectric Detection equipment technical field, be specifically related to a kind of analog test device of laser ranger.

Background technology

Various LDMSs comprise semiconductor laser range finder, Solid State Laser range finder and CO ₂Laser range finders etc. all will carry out the separation detection of each parts in making debug process, its central processing module will realize main logic control tally function; It is detected the operate as normal that can guarantee the center processing circuit, and detection method is more original mostly at present, efficient is very low; There is not proprietary pick-up unit; Perhaps pick-up unit detects inconvenience, and function is simple, can not well detect central processing module.

Summary of the invention

For solving the above-mentioned defective that prior art exists; The object of the invention is to provide a kind of easy to detect, powerful, efficient is higher, extensibility is good analog test device of laser ranger; This pick-up unit function modoularization; Be prone to upgrading, configurable in multiple laser range finder analog detection use.

For realizing above-mentioned purpose; The technical scheme that the present invention adopts is: this analog test device of laser ranger has casing; Casing is provided with status indicator lamp, digital display tube, function manipulation key and socket; It is characterized in that: be provided with the analogue ranging control module, simulation PC control transport module, data disaply moudle, state display module and the signal input module that are connected with tested disposable plates in the said casing; Said analogue ranging control module outside need is provided with distance through toggle switch; The main ripple sampling of generation simulation and echoed signal are given tested disposable plates and are counted processing, and 29.97MHz signal, the single/repetition signal of tested disposable plates output are connected the analogue ranging control module with trigger pip; Tested disposable plates is connected simulation PC control transport module through address wire, AEN, data line, write signal with read signal; Analogue ranging control module, tested disposable plates and the output of simulation PC control transport module are connected data disaply moudle through MUX; The output connection status display module of simulation PC control transport module, said signal input module is connected with MUX with analogue ranging control module, tested disposable plates, simulation PC control transport module.

The pattern of said signal input module, frequency selection, transmitter trigger and reset signal flow to tested disposable plates; Load the accumulated value signal conveys and give the analogue ranging control module; The demonstration source selects signal conveys to give MUX, and test signal, host computer emission and host computer enabling signal flow to simulation PC control transport module.

Said analogue ranging control module is through the emission start trigger signal; The emission trigger pip is divided into two-way and triggers; One the tunnel triggers through fixed delay 2, trigger 2 and count value module input down counter module successively, and another road is connected the cen end triggering of down counter module successively with trigger 1 through fixed delay 1, and high frequency clock connects the clk end of down counter module; The output of fixed delay 1 is connected with trigger 2 behind reverser 1 and is used for zero clearing; The down counter module is exported main ripple sampled signal, and the down counter module is also through monostalbe trigger output echoed signal, and echoed signal connects trigger 1 through reverser 2 feedbacks and is used for zero clearing.

The 150Hz t=7ms clock generating write-read cycle clock sequence of said simulation PC control transport module after by frequency multiplication; A write-read cycle clock sequence write cycle time of output and two read cycles; The trigger pip input writing controller of a write cycle time, writing controller OPADD, data and write signal; The trigger pip input Read Controller of two read cycles, Read Controller output read signal, digital shows signal and state shows signal.

Said data disaply moudle comprises two demonstration sources, preset distance data and analogue ranging enumeration data, and they control through showing the source selection key.

Said state display module is made up of a plurality of light emitting diodes, and the different state signal is indicated with corresponding light emitting diode.

Adopt the beneficial effect of technique scheme: this analog test device of laser ranger is by analogue ranging control module, simulation PC control transport module, and data disaply moudle, state display module and signal input module constitute.The analogue ranging control module realizes in FPGA; Outside need is provided with distance through toggle switch; Through the work of emission start trigger signal internal module; Produce the main ripple sampling and the echoed signal of simulation, replace the signal that produced through Laser emission and dash receiver really, sample main ripple and echoed signal is given tested disposable plates and counted processing.Simulation PC control transport module; In FPGA, realize; Comprise in the transport module from designing read-write controller, simulate write command and the read states and the read data of host computer, and can be temporary state and data; Can show successively that this module can be made corresponding expanded configuration according to different Board Under Tests easily.Data disaply moudle comprises two demonstration sources, preset distance data and analogue ranging enumeration data, and they show measured data through showing that the source selection key is controlled.The state display module is made up of a plurality of light emitting diodes, and the different state signal is indicated with corresponding light emitting diode.For example transmit signals such as main ripple sampling, analogue echo, successful launch and multiple goal.This analog test device of laser ranger provides a kind of employing FPGA (field programmable gate array) to realize the analog detection of LDMS central processing module; Software function moduleization; Be prone to upgrading, configurable, have advantage easy to detect, powerful, that efficient is higher, extensibility is good.

Description of drawings

Below in conjunction with accompanying drawing specific embodiment of the present invention is done further detailed explanation.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the theory diagram of analogue ranging control module.

Fig. 3 is the sequential chart of analogue ranging control module.

Fig. 4 is a The general frame of the present invention.

Fig. 5 is the theory diagram of simulation PC control transport module.

Fig. 6 is the sequential chart of simulation PC control transport module.

Embodiment

Like Fig. 1, the analog test device of laser ranger shown in 4; Has casing 1; Casing is provided with state written instructions lamp 2, digital display tube 4, function manipulation key and socket 3,9, and function manipulation key comprises mode switch 5, frequency selective switch 6, transmitter trigger switch 7, reset key 8, host computer emission mode key 10, host computer transmitter trigger key 11, show source options button 12, feeler switch 13, load accumulated value 14, five toggle switchs 15, power switch 16.Socket 3 is used for being connected with tested disposable plates 17.Be provided with the analogue ranging control module 18, simulation PC control transport module 22, data disaply moudle 20, state display module 21 and the signal input module that are connected with tested disposable plates 17 in the casing 1; Analogue ranging control module 18 outside needs are provided with distance through five toggle switchs 15; The main ripple sampling of generation simulation and echoed signal are given tested disposable plates 17 and are counted processing, and 29.97MHz signal, the single/repetition signal of tested disposable plates 17 outputs are connected analogue ranging control module 18 with trigger pip; Tested disposable plates 17 is connected simulation PC control transport module 22 through address wire, AEN, data line, write signal with read signal; Analogue ranging control module, tested disposable plates and the output of simulation PC control transport module are connected data disaply moudle 20 through MUX 19, the output connection status display module 21 of simulation PC control transport module 22.Data disaply moudle 20 comprises two demonstration sources, constitutes by the demonstration charactron, and preset distance data and analogue ranging enumeration data, they control through showing the source selection key.State display module 21 is made up of a plurality of light emitting diodes, and the different state signal is indicated with corresponding light emitting diode.Pattern, frequency selection, transmitter trigger and reset signal that the mode switch 5 of signal input module, frequency selective switch 6, transmitter trigger switch 7, reset key 8 produce flow to tested disposable plates 17; Load accumulated value 14 signal conveys and give analogue ranging control module 18; The demonstration source that demonstration source options button 12 is confirmed selects signal conveys to give MUX 19, and test signal, host computer emission mode signal and the host computer enabling signal that feeler switch 13, host computer emission mode key 10, host computer transmitter trigger key 11 produce flows to simulation PC control transport module 22.Pass through the emission start trigger signal like Fig. 2,3 analogue ranging control modules 18; The emission trigger pip is divided into two-way and triggers; One the tunnel triggers through fixed delay 2, trigger 2 and count value module input down counter module successively, and another road is connected the cen end triggering of down counter module successively with trigger 1 through fixed delay 1, and high frequency clock connects the clk end of down counter module; The output of fixed delay 1 is connected with trigger 2 behind reverser 1 and is used for zero clearing; The down counter module is exported main ripple sampled signal, and the down counter module is also through monostalbe trigger output echoed signal, and echoed signal connects trigger 1 through reverser 2 feedbacks and is used for zero clearing.Like Fig. 5, the simulation PC control transport module shown in 6; Write-read cycle clock of clock generating sequence by the 150Hz cycle t=7ms after the frequency multiplication; A write-read cycle clock sequence write cycle time of output and two read cycles; The trigger pip input writing controller of a write cycle time, writing controller OPADD, data and write signal; The trigger pip input Read Controller of two read cycles, Read Controller output read signal, digital shows signal and state shows signal.

The groundwork flow process:

When selecting the single emission pattern through mode switch; Each distance presets number and all gets the toggle switch data, and these data can be selected to show through demonstration source selection key, after the emission; Produce accurate main ripple sampling and echo return signal to tested disposable plates through the analogue ranging control module; Simulation PC control transport module is responsible for giving display module ranging data and is shown, through show the source selection key find range from passing through the seven segment code demonstration again, can the switching displayed source; Preset number and relatively judge, the data of surveying whether correct; When selecting the repetition pattern; Get for the first time the set benchmark numerical value of toggle switch; The every emission of repetition afterwards once all adds a distance increment (as 100, but also run duration changes increment) on previous setpoint distance basis, after emission stops; 16 groups of ranging datas that can show institute's buffer memory through the test button successively are to contrast.During the simulation multiple goal; Produce 2 or a plurality of echoed signal by the analogue ranging control module, and the distance of each simulated target can be set, select or the ripple door by the multiple goal of the tested disposable plates of control; The distance of the target that can obtain surveying, and show through seven segment code.

Claims

1. analog test device of laser ranger; Has casing; Casing is provided with state written instructions lamp, digital display tube, function manipulation key and socket; It is characterized in that: be provided with the analogue ranging control module, simulation PC control transport module, data disaply moudle, state display module and the signal input module that are connected with tested disposable plates in the said casing; Said analogue ranging control module outside need is provided with distance through toggle switch, and the main ripple sampling of generation simulation and echoed signal are given tested disposable plates and counted processing, and 29.97MHz signal, the single/repetition signal of tested disposable plates output are connected the analogue ranging control module with trigger pip; Tested disposable plates is connected simulation PC control transport module through address wire, AEN, data line, write signal with read signal; Analogue ranging control module, tested disposable plates and the output of simulation PC control transport module are connected data disaply moudle through MUX; The output connection status display module of simulation PC control transport module, said signal input module is connected with MUX with analogue ranging control module, tested disposable plates, simulation PC control transport module.

2. analog test device of laser ranger according to claim 1; It is characterized in that: the pattern of said signal input module, frequency selection, transmitter trigger and reset signal flow to tested disposable plates; Load the accumulated value signal conveys and give the analogue ranging control module; The demonstration source selects signal conveys to give MUX, and test signal, host computer emission and host computer enabling signal flow to simulation PC control transport module.

3. analog test device of laser ranger according to claim 1; It is characterized in that: said analogue ranging control module is through the emission start trigger signal; The emission trigger pip is divided into two-way and triggers; One the tunnel triggers through fixed delay 2, trigger 2 and count value module input down counter module successively, and another road is connected the cen end triggering of down counter module successively with trigger 1 through fixed delay 1, and high frequency clock connects the clk end of down counter module; The output of fixed delay 1 is connected with trigger 2 behind reverser 1 and is used for zero clearing; The down counter module is exported main ripple sampled signal, and the down counter module is also through monostalbe trigger output echoed signal, and echoed signal connects trigger 1 through reverser 2 feedbacks and is used for zero clearing.

4. analog test device of laser ranger according to claim 1; It is characterized in that: the clock generating write-read cycle clock sequence of the 150Hz cycle t=7ms of said simulation PC control transport module after by frequency multiplication; A write-read cycle clock sequence write cycle time of output and two read cycles; The trigger pip input writing controller of a write cycle time, writing controller OPADD, data and write signal; The trigger pip input Read Controller of two read cycles, Read Controller output read signal, digital shows signal and state shows signal.

5. analog test device of laser ranger according to claim 1 is characterized in that: said data disaply moudle comprises two demonstration sources, preset distance data and analogue ranging enumeration data, and they control through showing the source selection key.

6. analog test device of laser ranger according to claim 1 is characterized in that: said state display module, to form by a plurality of light emitting diodes, and the different state signal is indicated with corresponding light emitting diode.