CN203881939U - Handheld log indicator/ transducer tester - Google Patents

Handheld log indicator/ transducer tester Download PDF

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Publication number
CN203881939U
CN203881939U CN201420033591.8U CN201420033591U CN203881939U CN 203881939 U CN203881939 U CN 203881939U CN 201420033591 U CN201420033591 U CN 201420033591U CN 203881939 U CN203881939 U CN 203881939U
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CN
China
Prior art keywords
module
log
transducer
control unit
mcu
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Expired - Fee Related
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CN201420033591.8U
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Chinese (zh)
Inventor
邓鸣沙
沈莹
金岩
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NANJING NINGLU TECHNOLOGY Co Ltd
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NANJING NINGLU TECHNOLOGY Co Ltd
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Priority to CN201420033591.8U priority Critical patent/CN203881939U/en
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Abstract

The utility model relates to a handheld log indicator / a transducer tester. The handheld log indicator/transducer tester comprises an MCU micro control unit, an LCD display screen control circuit, a key control circuit, a charging port circuit, an ultrasonic receiving module, an ultrasonic transmitting module, an underwater acoustic transducer test module, an NMEA detection module and an RS232 communication conversion module, wherein the LCD display screen control circuit, the key control circuit, the charging port circuit, the ultrasonic receiving module, the ultrasonic transmitting module, the underwater acoustic transducer test module, the NMEA detection module and the RS232 communication conversion module are all connected with the MCU micro control unit, and other circuits and function modules are controlled through the MCU micro control unit. According to the technical scheme, the handheld log indicator/transducer tester is ingenious in design, high in precision, stable in performance and reliability and convenient to carry and use.

Description

Hand log/transducer test instrument
Technical field
The present invention relates to a kind of tester, relate in particular to a kind of hand log/transducer test instrument, belong to navigating equipment and detect maintenance technique field.
Background technology
Doppler log is the measuring equipment of boats and ships voyage and speed, by according to certain angle to seabed or water transmitting sound wave, utilize the Doppler shift of echoed signal to record boats and ships with respect to the speed of seabed or current.In log use, detection, maintenance process, all must connect transducer, therefore how whether testing transducer performance meets client's needs, is also urgent problem.
In the market the detection of log, maintenance mode be take to sea test and pond test conventionally as main, because the operational configuration of the relative water of boats and ships cannot be simulated in static pond, also will build rotation pond, this also will expend a large amount of manpower, material resources and financial resources.Therefore, must on the boats and ships of navigation, equipment be tested and be detected, experimental cost be high, the cycle is long, the very large inconvenience bringing to maintenance, the efficiency of greatly reduce detection, keeping in repair.
Chinese invention patent ZL201310125490.3 discloses a kind of docking system based on FPGA simulation Doppler log seabed involuting wave signal, in FPGA, process and transmit, utilize independently echo waveform signal output channels of 8 tunnels, wave beam is pressed to phase differential successively to be sent, be merely able to simulated sea bottom echo, can not comprehensively detect log and transducer.Therefore, a kind of new technical scheme of exigence solves the problems of the technologies described above.
Summary of the invention
The present invention, just for the technical matters existing in prior art, provides a kind of hand log/transducer test instrument, and this Technical Design is ingenious, precision is high, stable performance, reliability strong, portably use conveniently.Hand log/transducer test instrument provided by the invention, can receive, show the parameter of log transponder pulse signal, judges thus the integrity of log transmitter module; Population parameter is simulated the echoed signal of 2 road water, judges thus the integrity of log receiver module; The performance parameter value of testing transducer, judges whether transducer meets user's requirement thus; Receive, show the NMEA0183 signal of connection device output; Can be used for the computer teaching of Doppler log.
To achieve these goals, technical scheme of the present invention is as follows, a kind of hand log/transducer test instrument, it is characterized in that, described hand log/transducer test instrument comprises MCU micro-control unit, LCD display control circuit, key control circuit, charging inlet circuit, ultrasound wave receiver module, ultrasound wave transmitter module, underwater acoustic transducer test module, NMEA detection module, RS232 communication conversion module, described LCD display control circuit, key control circuit, charging inlet circuit, ultrasound wave receiver module, ultrasound wave transmitter module, underwater acoustic transducer test module, NMEA detection module, RS232 communication conversion module is all connected with MCU micro-control unit, by other circuit of MCU micro-control unit controls and functional module.
As a modification of the present invention, described hand log/transducer test instrument also comprises display screen, button, log interface, transducer interface, NMEA interface, RS232 interface.
Described display screen connects LCD display control circuit, and described LCD display control circuit is used for controlling display backlight situation; Described button connects key control circuit, and described key control circuit is to control the use of each button on detector; Described log interface one end connects ultrasound wave receiver module, ultrasound wave transmitter module simultaneously, and the other end is used for connecting log; Described transducer interface one end connects underwater acoustic transducer test module, and the other end is used for connecting transducer; Described NMEA interface connects one end and connects NMEA detection module, and the other end is for connecting the equipment that can export NMEA0183 signal; The function of described NMEA detection module is the NMEA0183 signal that receives and show connection device output; Described RS232 interface one end connects RS232 communication conversion module, and the other end is used for connecting computer; The function of described RS232 communication conversion module is level conversion, is convenient to communicating by letter between tester and computer.
As a modification of the present invention, ultrasound wave receiver module comprises LED input state lamp control circuit, LED input state lamp, bleeder circuit, Timer/Counter, MCU PCA module, MCU interrupt module, MCU Timer/Counter, peak holding circuit, A/D sampling.The pulse signal that described ultrasound wave receiver module is launched for receiving, detect log, and by MCU micro-control unit controls, the log transponder pulse signal frequency, width, the peak-to-peak value that detect are shown in LCDs; When tester detects the input of transponder pulse signal, the flicker of LED input state lamp.
As a modification of the present invention, the pulse signal of inputting in described ultrasound wave receiver module, through bleeder circuit, the peak-to-peak value of input pulse is decayed to the scope of 0 ~ 5V, then through Timer/Counter, MCU PCA module, MCU interrupt module, MCU Timer/Counter, obtain frequency, the width of input pulse; Through peak holding circuit, A/D sampling, obtain the peak-to-peak value of input pulse, and by MCU micro-control unit controls, the parameter value recording is shown in display screen.
As a modification of the present invention, described ultrasound wave transmitter module comprises two-way Direct Digital Synthesizer DDS, two railway digital bleeder circuits, LED output state lamp control circuit, LED output state lamp.The echo parameter value of the water of the needs simulation that described ultrasound wave transmitter module arranges according to user, by the echoed signal of MCU micro-control unit controls population parameter Simulated Water; When tester has echo pulse signal output, the flicker of LED output state lamp.
As a modification of the present invention, user passes through button operation, the echo parameter value of the water that needs simulation is set, by MCU micro-control unit controls, through two-way Direct Digital Synthesizer DDS, simulate the echo pulse signal of two path water, through digital bleeder circuit, the echo pulse signal peak-to-peak value of simulation is decayed to the peak-to-peak value size of setting, then through log interface, export log to.
As a modification of the present invention, described underwater acoustic transducer test module comprises Direct Digital Synthesizer DDS, peak holding circuit, A/D sampling.Described underwater acoustic transducer test module is for full rate measurement transducer impedance/conductance, phase value, and by MCU micro-control unit controls, and resonance frequency, the resonance impedance/electricity that obtains transducer by calculating led, resonance phase value.
As a modification of the present invention, user passes through button operation, the transducer frequency scope and the frequency step interval that need test are set, by MCU micro-control unit controls, in the frequency range of setting through Direct Digital Synthesizer DDS, carry out frequency sweep, can draw three road pulse signals, then through peak holding circuit, A/D sampling, obtain the voltage of three road pulse signals, then the resonance frequency, the resonance impedance/electricity that by MCU micro-control unit, by specific algorithm, calculate acquisition transducer are led, resonance phase value.
As a modification of the present invention, described display screen is the large-screen lc screen of 128 * 64 dot matrix.
With respect to prior art, beneficial effect of the present invention is as follows:
1) function of this technical scheme has realized log simulator, transducer test instrument, the three-in-one effect of NMEA0183 measuring instrument;
2) this technical scheme is provided rechargeable battery for oneself, portable strong adaptability;
3) large-screen lc is set in this technical scheme and shows, sharpness is high;
4) this technical scheme measuring accuracy is high, stable performance, and reliability is strong;
5) comprehensive detection log fault, the echo of population parameter simulation two path water, full rate measurement transducer impedance/conductance, phase value;
6) the NMEA0183 signal of connection device output can be accepted and show to this technical scheme;
7) this technical scheme can be connected with computer, for Doppler log tutoring system;
8) solved when indoor detection maintenance log, transducer, the drawback that need to build pond, has saved a large amount of detections, maintenance cost.
Accompanying drawing explanation
Fig. 1 is overall system structure block diagram of the present invention;
Fig. 2 is ultrasound wave receiver module theory diagram;
Fig. 3 is ultrasound wave transmitter module theory diagram;
Fig. 4 is underwater acoustic transducer test module theory diagram.
Embodiment
In order to deepen the understanding of the present invention and understanding, below in conjunction with the drawings and specific embodiments, the present invention is made further instructions and introduced.
embodiment 1:
Referring to Fig. 1, a kind of hand log/transducer test instrument, described hand log/transducer test instrument comprises MCU micro-control unit, LCD display control circuit, key control circuit, charging inlet circuit, ultrasound wave receiver module, ultrasound wave transmitter module, underwater acoustic transducer test module, NMEA detection module, RS232 communication conversion module, described LCD display control circuit, key control circuit, charging inlet circuit, ultrasound wave receiver module, ultrasound wave transmitter module, underwater acoustic transducer test module, NMEA detection module, RS232 communication conversion module is all connected with MCU micro-control unit, by other circuit of MCU micro-control unit controls and functional module.This technical scheme provides a kind of hand log/transducer test instrument, when tester is connected with log, pulse signal input test instrument by log transmitting certain frequency, width, peak-to-peak value, through ultrasound wave receiver module and MCU micro-control unit, the parameter of input pulse can be detected, now LED input state lamp flicker shows the pulse parameter values detecting in liquid crystal display, by the integrity of the pulse parameter values judgement log transmitter module detecting; The echo parameter value of the water of setting according to user, tester is simulated the echoed signal of 2 road water through ultrasound wave transmitter module and MCU micro-control unit, and exported to log, now LED output state lamp flicker, the echoed signal parameter receiving according to log, the integrity of judgement log receiver module.When tester is connected with transducer, frequency range and the frequency step interval according to user, set, resonance frequency, the resonance impedance/electricity that can measure transducer led, resonance phase, then contrasts with the resonant parameter of tested transducer itself, judges whether the performance of transducer meets user's requirement.While being connected with other equipment under tests, can receive and show the NMEA0183 signal of connection device output.While being connected with computer, can be used for the computer teaching of Doppler log.
embodiment 2:
Referring to Fig. 1, as a modification of the present invention, described hand log/transducer test instrument also comprises display screen, button, log interface, transducer interface, NMEA interface, RS232 interface.
Described display screen connects LCD display control circuit, and described LCD display control circuit is used for controlling display backlight situation; Described button connects key control circuit, and described key control circuit is to control the use of each button on tester; Described log interface one end connects ultrasound wave receiver module, ultrasound wave transmitter module simultaneously, and the other end is used for connecting log; Described transducer interface one end connects underwater acoustic transducer test module, and the other end is used for connecting transducer; Described NMEA interface one end connects NMEA detection module, and the other end is for connecting the equipment that can export NMEA0183 signal; The function of described NMEA detection module is the NMEA0183 signal that receives and show connection device output; Described RS232 interface one end connects RS232 communication conversion module, and the other end is used for connecting computer; The function of described RS232 communication conversion module is level conversion, is convenient to communicating by letter between tester and computer; Described charging inlet circuit is for charging to tester built-in lithium battery, so that give whole tester power supply.All the other structures and advantage are identical with embodiment 1.
embodiment 3:
Referring to Fig. 2, as a modification of the present invention, ultrasound wave receiver module comprises LED input state lamp control circuit, LED input state lamp, bleeder circuit, Timer/Counter, MCU PCA module, MCU interrupt module, MCU Timer/Counter, peak holding circuit, A/D sampling.Described ultrasound wave receiver module shows in LCDs for receiving, detect log emission peak peak value; When tester detects the input of transponder pulse signal, the flicker of LED input state lamp.The pulse signal of input, through bleeder circuit, the peak-to-peak value of input pulse is decayed to the scope of 0 ~ 5V, then through Timer/Counter, MCU PCA module, MCU interrupt module, MCU Timer/Counter, obtain frequency, the width of input pulse, through peak holding circuit, A/D sampling, obtain the peak-to-peak value of input pulse, and by MCU micro-control unit controls, the parameter value recording is shown in display screen.All the other structures and advantage are identical with embodiment 1.
embodiment 4:
Referring to Fig. 3, as a modification of the present invention, described ultrasound wave transmitter module comprises two-way Direct Digital Synthesizer DDS, two railway digital bleeder circuits, LED output state lamp control circuit, LED output state lamp.The echo parameter value of the water of the needs simulation that described ultrasound wave transmitter module arranges according to user, by the echoed signal of MCU micro-control unit controls population parameter Simulated Water; When tester has echo pulse signal output, the flicker of LED output state lamp.User passes through button operation, the echo parameter value of the water that needs simulation is set, by MCU micro-control unit controls, through two-way Direct Digital Synthesizer DDS, simulate the echo pulse signal of two path water, through digital bleeder circuit, the echo pulse signal peak-to-peak value of simulation is decayed to the peak-to-peak value size of setting, then through log interface, export the echo of simulation to log.All the other structures and advantage are identical with embodiment 1.
embodiment 5:
Referring to Fig. 4, as a modification of the present invention, described underwater acoustic transducer test module comprises Direct Digital Synthesizer DDS, peak holding circuit, A/D sampling.Described underwater acoustic transducer test module is for full rate measurement transducer impedance/conductance, phase value, and by MCU micro-control unit controls, and resonance frequency, the resonance impedance/electricity that obtains transducer by calculating led, resonance phase value.User passes through button operation, the transducer frequency scope and the frequency step interval that need test are set, by MCU micro-control unit controls, in the frequency range of setting through Direct Digital Synthesizer DDS, carry out frequency sweep, can draw three road pulse signals, then through peak holding circuit, A/D sampling, obtain the voltage of three road pulse signals, then the resonance frequency, the resonance impedance/electricity that by MCU micro-control unit, by specific algorithm, calculate acquisition transducer are led, resonance phase value.All the other structures and advantage are identical with embodiment 1.
embodiment 6:
As a modification of the present invention, described display screen is the large-screen lc screen of 128 * 64 dot matrix.All the other structures and advantage are identical with embodiment 1.
The present invention can also, by least one and embodiment in technical characterictic described in embodiment 2,3,4,5,61 combination, form new embodiment.
It should be noted that above-described embodiment is only preferred embodiment of the present invention; be not used for limiting protection scope of the present invention; being equal to replacement or substituting of having done on the basis of the above all belongs to protection scope of the present invention, and protection scope of the present invention is as the criterion with claims.

Claims (9)

1. hand log/transducer test instrument, it is characterized in that, described hand log/transducer test instrument comprises MCU micro-control unit, LCD display control circuit, key control circuit, charging inlet circuit, ultrasound wave receiver module, ultrasound wave transmitter module, underwater acoustic transducer test module, NMEA detection module, RS232 communication conversion module, described LCD display control circuit, key control circuit, charging inlet circuit, ultrasound wave receiver module, ultrasound wave transmitter module, underwater acoustic transducer test module, NMEA detection module, RS232 communication conversion module is all connected with MCU micro-control unit, by other circuit of MCU micro-control unit controls and functional module.
2. a kind of hand log/transducer test instrument according to claim 1, is characterized in that, described hand log/transducer test instrument also comprises display screen, button, log interface, transducer interface, NMEA interface, RS232 interface; Described display screen connects LCD display control circuit, and described LCD display control circuit is used for controlling display backlight situation; Described button connects key control circuit, and described key control circuit is to control the use of each button on tester;
Described log interface one end connects ultrasound wave receiver module, ultrasound wave transmitter module simultaneously, and the other end is used for connecting log;
Described transducer interface one end connects underwater acoustic transducer test module, and the other end is used for connecting transducer; Described NMEA interface one end connects NMEA detection module, and the other end is for connecting the equipment that can export NMEA0183 signal; The function of described NMEA detection module is the NMEA0183 signal that receives and show connection device output; Described RS232 interface one end connects RS232 communication conversion module, and the other end is used for connecting computer; The function of described RS232 communication conversion module is level conversion, is convenient to communicating by letter between tester and computer.
3. a kind of hand log/transducer test instrument according to claim 1 and 2, it is characterized in that, ultrasound wave receiver module comprises LED input state lamp control circuit, LED input state lamp, bleeder circuit, Timer/Counter, MCU PCA module, MCU interrupt module, MCU Timer/Counter, peak holding circuit, A/D sampling; The pulse signal that described ultrasound wave receiver module is launched for receiving, detect log, and by MCU micro-control unit controls, the log transponder pulse signal frequency, width, the peak-to-peak value that detect are shown in LCDs; When tester detects the input of transponder pulse signal, the flicker of LED input state lamp.
4. a kind of hand log/transducer test instrument according to claim 3, it is characterized in that, the pulse signal of inputting in described ultrasound wave receiver module, through bleeder circuit, the peak-to-peak value of input pulse is decayed to the scope of 0 ~ 5V, then through Timer/Counter, MCU PCA module, MCU interrupt module, MCU Timer/Counter, obtain frequency, the width of input pulse, through peak holding circuit, A/D sampling, obtain the peak-to-peak value of input pulse, and by MCU micro-control unit controls, the parameter value recording is shown in display screen.
5. a kind of hand log/transducer test instrument according to claim 1 and 2, it is characterized in that, described ultrasound wave transmitter module comprises two-way Direct Digital Synthesizer DDS, two railway digital bleeder circuits, LED output state lamp control circuit, LED output state lamp; Described ultrasound wave transmitter module arranges the echo parameter value of the water that needs simulation according to user, by the echoed signal of MCU micro-control unit controls population parameter Simulated Water; When tester has echo pulse signal output, the flicker of LED output state lamp.
6. a kind of hand log/transducer test instrument according to claim 5, it is characterized in that, user passes through button operation, the echo parameter value of the water that needs simulation is set, by MCU micro-control unit controls, through two-way Direct Digital Synthesizer DDS, simulate the echo pulse signal of two path water, through digital bleeder circuit, the echo pulse signal peak-to-peak value of simulation is decayed to the peak-to-peak value size of setting, then through log interface, export log to.
7. a kind of hand log/transducer test instrument according to claim 1 and 2, is characterized in that, described underwater acoustic transducer test module comprises Direct Digital Synthesizer DDS, peak holding circuit, A/D sampling; Described underwater acoustic transducer test module is for full rate measurement transducer impedance/conductance, phase value, and by MCU micro-control unit controls, and resonance frequency, the resonance impedance/electricity that obtains transducer by calculating led, resonance phase value.
8. a kind of hand log/transducer test instrument according to claim 7, it is characterized in that, user passes through button operation, the transducer frequency scope and the frequency step interval that need test are set, by MCU micro-control unit controls, in the frequency range of setting through Direct Digital Synthesizer DDS, carry out frequency sweep, can draw three road pulse signals, then pass through peak holding circuit, A/D sampling obtains the voltage of three road pulse signals, by MCU micro-control unit, by specific algorithm, calculated again the resonance frequency that obtains transducer, resonance impedance/electricity is led, resonance phase value.
9. a kind of hand log/transducer test instrument according to claim 2, is characterized in that, described display screen is the large-screen lc screen of 128 * 64 dot matrix.
CN201420033591.8U 2014-01-20 2014-01-20 Handheld log indicator/ transducer tester Expired - Fee Related CN203881939U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103760549A (en) * 2014-01-20 2014-04-30 南京宁禄科技有限公司 Handheld log indicator / transducer tester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103760549A (en) * 2014-01-20 2014-04-30 南京宁禄科技有限公司 Handheld log indicator / transducer tester

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20141015

Termination date: 20190120