CN208766500U - A kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically - Google Patents
A kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically Download PDFInfo
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Abstract
A kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically, it is made of the identical automatic detection of four groups of structures with online self testing circuit, pass through the first test voltage generator of setting, potentiometer power supply circuit and A/D sample circuit, for detecting the broken string situation of whole leads of steering handwheel potentiometer automatically, it short cut with each other situation between also detectable lead and report single-chip microcontroller, have the characteristics that detect comprehensive, high reliablity, practical；The online self testing circuit of BIT is set simultaneously, for online this control device of self-test working condition and do not influence the normal work of this control device, and will test result and report single-chip microcontroller, have the characteristics that detection real-time, reliability；The online self-test function of BIT is mainly used for the lower situation of signal frequency, especially steering signal, is conducive to greatly improve the multichannel of one of Ship Controling important component, the steering handwheel functional reliability of more redundancies, safety.
Description
Technical field
It is detected automatically the utility model relates to steering hand wheel control device technical field more particularly to a kind of band and BIT exists
The steering hand wheel control device of line self-test.
Background technique
Steering handwheel module is one of Ship Controling important component, and reliability, safety will directly affect safety of ship
Reliable navigation, in order to improve the reliability of ship (especially naval vessel) auto navigator manipulation, naval vessel auto navigator at present
Steering handwheel module has generallyd use the design method of multichannel, more redundancies, and its multi-way contral circuit is arranged in steering
Centralized processing in control device except handwheel module, it is therefore desirable to be believed the multichannel potentiometer of steering handwheel module by lead
Number lead in the control device outside module, and the steering handwheel module potentiometer signal of multichannel, more redundancies by plug,
Lead is drawn, and the failures such as bad wire contacts, broken string and short circuit are unavoidably easy to produce.
Meanwhile the application demand being monitored to amplifier circuit itself working condition is also more and more, monitoring task is general
All over BIT self-test technology is used, i.e. additional increase tests circuit and test single-chip microcontroller, monitors the work shape to amplifier at any time
State.The self-test control circuit of amplifier circuit mainly has non-online and two kinds online, and non-online test circuit is being surveyed
It when trying amplifier operation state, needs to increase switching switch, cuts off the signal input of amplifier, while inputting self-test voltage letter
Number, if amplifier output signal is consistent with modelled signal, that is, determine that amplifier circuit is working properly, but increasing switching switch can not
It avoids increasing circuit link, and then the reliability of step-down amplifier circuit work, there is limitation；Online test circuit is being surveyed
When trying the working condition of amplifier, then it need to additionally increase input self-test voltage signal in the signal input part of amplifier, if putting
Big device output signal is consistent with modelled signal, that is, determines that amplifier circuit is working properly.This class testing will directly make in test
Working signal variation, easily causes amplifier operation state offset and influences normal amplifier operation；Two kinds of self-test control circuits
There is limitation.
To find such failure problems such as bad wire contacts, broken string and short circuit, real time on-line monitoring amplifier electricity in time
Road itself working condition develops a kind of device to solve the above problems and has become those skilled in the art's technology urgently to be resolved
Problem.
Utility model content
The technical issues of the utility model is solved is to provide a kind of band and detects automatically and the steering of the online self-test of BIT
Hand wheel control device, to solve the disadvantage in above-mentioned background technique.
The technical problem solved by the utility model is implemented by the following technical solutions:
A kind of band detect automatically with the steering hand wheel control device of the online self-test of BIT, it is identical automatic by four groups of structures
Detection is formed with online self testing circuit, and every group detection and online self testing circuit include input terminal, the first test voltage automatically
Generator, the second test voltage generator, potentiometer power supply circuit, amplifier, A/D sampling control circuit, A/D sample circuit and
Output end, input terminal one end are connect with steering handwheel potentiometer, and the input terminal other end is connect with potentiometer power supply circuit, potentiometer
Power supply circuit is connect with A/D sample circuit, amplifier, and the first test voltage generator is connect with potentiometer power supply circuit, and second
Test voltage generator is connect with amplifier, and A/D sampling control circuit is electric with the first test voltage generator, the second test respectively
Generator and the connection of A/D sample circuit, A/D sample circuit is pressed to connect with output end, after output end exports the amplification of potentiometer signal
Signal, input terminal includes first lead~third lead, a piece-root grafting ground wire；Specific structure is as follows:
First lead is connect with A/D sample circuit, the second capacitor of potentiometer power supply circuit and the 5th resistance respectively；
Second lead respectively with A/D sample circuit, first capacitor, the first resistor and third of the first test voltage generator
The 15th resistance connection of resistance, amplifier, first capacitor and ground line connect；
Third lead is connect with A/D sample circuit, the third capacitor of potentiometer power supply circuit and the 7th resistance respectively；
17th resistance of amplifier is connect with A/D sample circuit, the 8th capacitor one end, output end respectively, the 8th capacitor
The other end and ground line connect；First test voltage generator is connect by the 4th resistance with A/D sampling control circuit；Second surveys
Examination voltage generator is connect by thirteenth resistor with A/D sampling control circuit.
In the present invention, the first test voltage generator includes four resistance of first resistor~the, the first triode,
Two diodes, first resistor one end are connect with 3rd resistor one end, and the first resistor other end and ground line connect, and 3rd resistor is another
One end is connect with second diode one end, and the second diode other end is connect with first triode one end, and the first triode is another
End is connect with the 4th resistance, and the first triode is also in parallel with second resistance.
In the present invention, the second test voltage generator includes nine resistance~thirteenth resistor, third transistor,
9th resistance one end is connect with the tenth resistance one end, eleventh resistor one end respectively, and the 9th resistance other end and ground line connect,
The tenth resistance other end is connect with third transistor one end；The third transistor other end is connect with thirteenth resistor, the three or three pole
It manages also in parallel with twelfth resistor.
In the present invention, potentiometer power supply circuit includes the 5th resistance~the 8th resistance, the second capacitor ~ the 5th electricity
Hold, wherein the 5th resistance one end is connect with second capacitor one end, and the second capacitor other end and ground line connect, and the 5th resistance is another
One end is connect with one end of the 4th capacitor, the 6th resistance respectively, and the 4th electric other end and ground line connect；7th resistance one end with
Third capacitor one end connection, the third capacitor other end and ground line connect, the 7th resistance other end respectively with the 5th capacitor one
End, the connection of the 8th resistance, the 5th capacitor other end and ground line connect.
In the present invention, amplifier circuit includes the 14th resistance~the 17th resistance, the 6th capacitor, the 7th electricity
Hold, the first amplifier, the first amplifier respectively with the 15th resistance, the 16th resistance, the 17th resistance, the 6th capacitor, the 7th capacitor
One end connection, also connected with the 14th resistor coupled in parallel, the other end of the 16th resistance and ground line, the other end of the 6th capacitor
It is connected with ground line, the other end and ground line of the 7th capacitor connect.
In the present invention, A/D sample circuit includes sampling integrated circuit, the 9th capacitor~the 17th capacitor, the tenth
Eight resistance, voltage-stablizer.
In the present invention, it is provided between A/D sampling control circuit and the 4th resistance, thirteenth resistor and electricity is isolated
Road is provided with isolation circuit between A/D sampling control circuit and A/D sample circuit.
In the present invention, the second test voltage generator is connect by eleventh resistor with amplifier.
The utility model has the advantages that the utility model is made of the identical automatic detection of four groups of structures with online self testing circuit, pass through
First test voltage generator, potentiometer power supply circuit and A/D sample circuit are set, for detecting steering handwheel potentiometer automatically
Whole leads broken string situation, short cut with each other situation between also detectable lead and report single-chip microcontroller, have detect it is comprehensive,
High reliablity, practical feature；The online self testing circuit of BIT is arranged simultaneously, and (i.e. the second test voltage generator and A/D are adopted
Sample circuit), for online this control device of self-test working condition and do not influence the normal work of this control device, and will inspection
It surveys result and reports single-chip microcontroller, have the characteristics that detect real-time, reliability；The online self-test function of BIT is mainly used for signal frequency
The lower situation of rate, especially steering signal are conducive to greatly improve the multichannel of one of Ship Controling important component, more redundancies
Steering handwheel functional reliability, safety.
Detailed description of the invention
Fig. 1 is the functional block diagram of the preferred embodiment of the utility model.
Fig. 2 is the circuit block diagram of the preferred embodiment of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to a kind of band of Fig. 1~2 detect automatically with the steering hand wheel control device of the online self-test of BIT, by four groups of knots
The identical automatic detection of structure and online self testing circuit form, and every group detection and online self testing circuit include input terminal automatically
Input1, the first test voltage generator BIT Online1, the second test voltage generator BIT Online2, potentiometer power supply
Circuit Circuit I, amplifier Amplifier, A/D sampling control circuit A/D and level control, A/D sampling electricity
Road, output end Output1, the first triode V1, the second diode V2, third transistor V3, the electricity of first resistor R1~the 18th
Hinder R18, the capacitor C17 of first capacitor C1~the 17th, the first amplifier N1, A/D sampling integrated circuit N2, voltage-stablizer N3 and isolation electricity
Road, input terminal one end are connect with steering handwheel potentiometer, and the input terminal other end is connect with potentiometer power supply circuit, potentiometer power supply
Circuit is connect with A/D sample circuit, amplifier, and the first test voltage generator is connect with potentiometer power supply circuit, the second test
Voltage generator is connect with amplifier, and A/D sampling control circuit is sent out with the first test voltage generator, the second test voltage respectively
Raw device and the connection of A/D sample circuit, A/D sample circuit are connect with output end, and output end exports the amplified letter of potentiometer signal
Number, input terminal includes first lead P1-R1~third lead P1-R3, ground line P1GND, and specific structure is as follows:
First lead P1-R1 the second capacitor C2 with A/D sample circuit, potentiometer power supply circuit (Circuit I) respectively
And the 5th resistance R5 connection；
Second lead P1-R2 respectively with A/D sample circuit, first capacitor C1, the first test voltage generator (BIT
Online1 the 15th resistance R15 connection of first resistor R1 and 3rd resistor R3, amplifier (Amplifier)), the first electricity
Hold C1 and ground line connects；
The third lead P1-R3 third capacitor C3 with A/D sample circuit, potentiometer power supply circuit (Circuit I) respectively
And the 7th resistance R7 connection；
17th resistance R17 of amplifier (Amplifier) respectively with A/D sample circuit, the 8th one end capacitor C8, output
(Output1) connection is held, the 8th capacitor other end and ground line connect；First test voltage generator (BIT Online1) is logical
The 4th resistance R4 is crossed to connect with A/D sampling control circuit (A/D and level control)；Second test voltage generator
(BIT Online2) is connect by thirteenth resistor R13 with A/D sampling control circuit, in A/D sampling control circuit and the 4th electricity
Isolation circuit is provided between resistance R4, thirteenth resistor R13, the second test voltage generator (BIT Online2) passes through the tenth
One resistance R11 is connect with amplifier (Amplifier), is set between A/D sampling control circuit and the control terminal of A/D sample circuit
It is equipped with isolation circuit；
First test voltage generator (BIT Online1) includes the resistance R4 of first resistor R1~the 4th, the first triode
V1, the second diode V2, wherein the one end first resistor R1 is connect with the one end 3rd resistor R3, the first resistor R1 other end with connect
Ground wire connection, the 3rd resistor R3 other end are connect with second one end diode V2, the second diode V2 other end and the one or three pole
The connection of the one end pipe V1, the first triode V1 other end connect with the 4th resistance R4, the first triode V1 also with second resistance R2 simultaneously
Connection；
Second test voltage generator (BIT Online2) includes the 9th resistance R9~thirteenth resistor R13, the three or three pole
Pipe V3, wherein the 9th one end resistance R9 is connect with the tenth one end resistance R10, the one end eleventh resistor R11 respectively, the 9th resistance
The R9 other end and ground line connect, and the tenth resistance R10 other end is connect with the one end third transistor V3；Third transistor V3 is another
End is connect with thirteenth resistor R13, and third transistor V3 is also in parallel with twelfth resistor R12；
Potentiometer power supply circuit (Circuit I) includes the 5th resistance R8 of resistance R5~the 8th, the second capacitor C2 ~ the 5th electricity
Holding C5, wherein the 5th one end resistance R5 is connect with second one end capacitor C2, and the second capacitor C2 other end and ground line connect, the
The five resistance R5 other ends are connect with the 6th resistance R6, the 4th one end capacitor C4 respectively, and the 4th capacitor C4 other end and ground line connect
It connects；7th one end resistance R7 is connect with the one end third capacitor C3, and the third capacitor C3 other end and ground line connect, the 7th resistance R7
The other end is connect with the 8th resistance R8, the 5th one end capacitor C5 respectively, and the 5th capacitor C5 other end and ground line connect；
Amplifier circuit (Amplifier) includes the 14th resistance R17 of resistance R14~the 17th, the 6th capacitor C6, the 7th
Capacitor C7, the first amplifier N1, wherein the first amplifier N1 respectively with the 15th resistance R15, the 16th resistance R16, the 17th resistance
One end connection of R17, the 6th capacitor C6, the 7th capacitor C7, also in parallel with the 14th resistance R14, the 16th resistance R16's is another
End is connected with ground line, and the other end and ground line of the 6th capacitor C6 connects, and the other end and ground line of the 7th capacitor C7 connects；
A/D sample circuit (A/D) includes sampling integrated circuit N2, the 9th capacitor C17 of capacitor C9~the 17th, the 18th electricity
R18, voltage-stablizer N3 are hindered, is designed by the typical application circuit of A/D sampling integrated circuit；
Working principle
1, signal broken string, short-circuit automatic detection circuit working principle
As shown in Fig. 2, signal broken string, short-circuit automatic detection function are mainly by the first test voltage generator (BIT
Online1), potentiometer power supply circuit (Circuit I) and A/D sample circuit are completed, and steering handwheel potentiometer resistance is 2K Ω,
When the end first lead P1-R1 of steering handwheel potentiometer and ground line P1GND normal, UP1-R1<9V；When only first lead
The end P1-R1 disconnects, UP1-R1=9V similarly, judges the end third lead P1-R3 it is possible thereby to judge that the end first lead P1-R1 disconnects
It disconnects；
Real time on-line monitoring Uoutput1Voltage records Uoutput1Voltage value enables the first triode V1 be connected, and+5V voltage is through the
The input terminal of amplifier (Amplifier) is added in one triode V1, the second diode V2,3rd resistor R3, because of 3rd resistor R3
Resistance value is very big (120K Ω), if the second end lead P1-R2 does not disconnect, because the second end lead P1-R2 earth impedance is smaller, applies
Voltage (U is dragged down by partial pressure on the second end lead P1-R2P1-R2Variation < 0.1V), U at this timeoutput1Voltage value maintains initial value
Constant (variation < 0.1V), i.e. judgment method are as follows: the U of the first triode V1 conducting front and backoutput1Voltage value remain unchanged (variation <
0.1V), then judge that the second end lead P1-R2 does not disconnect, if the U of the first triode V1 conducting front and backoutput1Voltage value variation
0.2V ~ 0.3V then judges that the second end lead P1-R2 disconnects；
Even if the end ground lead P1GND disconnects, circuit still can be worked normally, unaffected, be only possible to circuit zero-bit
There is a small amount of variation, therefore need not judge to be grounded whether P1GND disconnects；
Whether each lead of similar approach deducibility has short-circuit conditions.
2, the online self-test working principle of BIT
The online self-test function of BIT is mainly complete by the second test voltage generator (BIT Online2) and A/D sample circuit
At, be mainly used for the lower situation of signal frequency, especially steering signal, due to steering signal be usually control steering engine rotation
Signal, steering engine move generally between (2.3 ° ~ 4/7 °)/S, and corresponding 1 ° of rudder angle corresponds to 0.25V voltage, as long as steering signal voltage
Quickly variation (several milliseconds ~ more than ten Milliseconds), becomes original numerical value again, then measuring circuit before steering engine starts to come about not yet
Steering engine control loop will not be had an impact；
During no steering helm order when self-test, A/D sampling control circuit (A/D and level coutrol) is quickly controlled
Third transistor V3 conducting processed ,+5V voltage rapidly joins the first amplifier N1 through third transistor V3, eleventh resistor R11, if UP1OMeasured value, by the value variation of setting, illustrates that this control device is working properly, otherwise can sentence before and after third transistor V3 conducting
This control device that breaks is faulty.
During having steering helm order when self-test, it is considered as excluding U when steering engine is normally come aboutP1OMeasurement variation width
Degree.
3, AD sample circuit working principle
With reference to AD sampled I C work data.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (8)
1. a kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically, which is characterized in that by four groups of structure phases
Same automatic detection is formed with online self testing circuit, and every group detection and online self testing circuit include input terminal, first automatically
Test voltage generator, the second test voltage generator, potentiometer power supply circuit, amplifier, A/D sampling control circuit, A/D are adopted
Sample circuit and output end, input terminal one end are connect with steering handwheel potentiometer, and the input terminal other end and potentiometer power supply circuit connect
It connects, potentiometer power supply circuit is connect with A/D sample circuit, amplifier, the first test voltage generator and potentiometer power supply circuit
Connection, the second test voltage generator connect with amplifier, A/D sampling control circuit respectively with the first test voltage generator,
Second test voltage generator and the connection of A/D sample circuit, A/D sample circuit are connect with output end, and input terminal draws including first
Line~third lead, a piece-root grafting ground wire；Specific structure is as follows:
First lead is connect with A/D sample circuit, the second capacitor of potentiometer power supply circuit and the 5th resistance respectively；
Second lead is electric with A/D sample circuit, first capacitor, the first resistor of the first test voltage generator and third respectively
Resistance, the 15th resistance connection of amplifier, first capacitor and ground line connect；
Third lead is connect with A/D sample circuit, the third capacitor of potentiometer power supply circuit and the 7th resistance respectively；
17th resistance of amplifier is connect with A/D sample circuit, the 8th capacitor one end, output end respectively, and the 8th capacitor is another
End is connected with ground line；First test voltage generator is connect by the 4th resistance with A/D sampling control circuit；Second test electricity
Pressure generator is connect by thirteenth resistor with A/D sampling control circuit.
2. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, spy automatically
Sign is that the first test voltage generator includes first resistor~the 4th resistance, the first triode, the second diode, the first electricity
Resistance one end is connect with 3rd resistor one end, and the first resistor other end and ground line connect, the 3rd resistor other end and the two or two pole
The connection of pipe one end, the second diode other end are connect with first triode one end, and the first triode other end and the 4th resistance connect
It connects, the first triode is also in parallel with second resistance.
3. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, spy automatically
Sign is that the second test voltage generator includes nine resistance~thirteenth resistor, third transistor, the 9th resistance one end difference
Connect with the tenth resistance one end, eleventh resistor one end, the 9th resistance other end and ground line connect, the tenth resistance other end with
The connection of third transistor one end；The third transistor other end is connect with thirteenth resistor, third transistor also with twelfth resistor
It is in parallel.
4. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, current potential automatically
Device power supply circuit includes the 5th resistance~the 8th resistance, the second capacitor ~ the 5th capacitor, the 5th resistance one end and second capacitor one end
Connection, the second capacitor other end and ground line connect, and the 5th resistance other end connects with one end of the 4th capacitor, the 6th resistance respectively
It connects, the 4th electric other end and ground line connect；7th resistance one end is connect with third capacitor one end, the third capacitor other end with connect
Ground wire connection, the 7th resistance other end are connect with one end of the 5th capacitor, the 8th resistance respectively, the 5th capacitor other end and ground connection
Line connection.
5. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, spy automatically
Sign is that amplifier circuit includes the 14th resistance~the 17th resistance, the 6th capacitor, the 7th capacitor, the first amplifier, the first fortune
It puts and is connect respectively with one end of the 15th resistance, the 16th resistance, the 17th resistance, the 6th capacitor, the 7th capacitor, also with the tenth
Four resistor coupled in parallel, the other end and ground line of the 16th resistance connect, and the other end and ground line of the 6th capacitor connect, the 7th electricity
The other end and ground line of appearance connect.
6. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, spy automatically
Sign is that A/D sample circuit includes sampling integrated circuit, the 9th capacitor~the 17th capacitor, the 18th resistance, voltage-stablizer.
7. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, spy automatically
Sign is, is provided with isolation circuit between A/D sampling control circuit and the 4th resistance, thirteenth resistor, in A/D controlling of sampling
Isolation circuit is provided between circuit and A/D sample circuit.
8. a kind of band according to claim 1 detects and the steering hand wheel control device of the online self-test of BIT, spy automatically
Sign is that the second test voltage generator is connect by eleventh resistor with amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591333.6U CN208766500U (en) | 2018-09-28 | 2018-09-28 | A kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821591333.6U CN208766500U (en) | 2018-09-28 | 2018-09-28 | A kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically |
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| Publication Number | Publication Date |
|---|---|
| CN208766500U true CN208766500U (en) | 2019-04-19 |
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| CN201821591333.6U Active CN208766500U (en) | 2018-09-28 | 2018-09-28 | A kind of band detects and the steering hand wheel control device of the online self-test of BIT automatically |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683508A (en) * | 2018-09-28 | 2019-04-26 | 中国船舶重工集团公司第七0七研究所九江分部 | A kind of band detects and the steering handwheel control system of the online self-test of BIT automatically |
-
2018
- 2018-09-28 CN CN201821591333.6U patent/CN208766500U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109683508A (en) * | 2018-09-28 | 2019-04-26 | 中国船舶重工集团公司第七0七研究所九江分部 | A kind of band detects and the steering handwheel control system of the online self-test of BIT automatically |
| CN109683508B (en) * | 2018-09-28 | 2024-01-02 | 中国船舶重工集团公司第七0七研究所九江分部 | Steering hand wheel control system with automatic detection and BIT online self-test |
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