CN206962824U - A kind of signal-testing apparatus - Google Patents
A kind of signal-testing apparatus Download PDFInfo
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- CN206962824U CN206962824U CN201720937811.3U CN201720937811U CN206962824U CN 206962824 U CN206962824 U CN 206962824U CN 201720937811 U CN201720937811 U CN 201720937811U CN 206962824 U CN206962824 U CN 206962824U
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Abstract
The utility model embodiment discloses a kind of signal-testing apparatus, including：First input interface, signal processing module, microprocessor and display module；First input interface electrically connects with signal receiving circuit, for receiving the multi-channel electric signal of multiple signal receiver outputs；Signal processing module, input electrically connects with the first input interface, output end electrically connects with microprocessor, for multi-channel electric signal to be handled, microprocessor is used to carry out judgement processing based on the multi-channel electric signal after processing, it is determined that abnormal signal receiver, and send cue to display module and shown.The technical scheme that the utility model embodiment provides, can solve the problems, such as the performance test methods waste of manpower of existing signal receiving device and time.
Description
Technical field
The utility model embodiment is related to signal testing technology, more particularly to a kind of signal-testing apparatus.
Background technology
Indoor positioning technologies attract attention further at present.For example, in order to realize the more preferable scene reproduction technology of VR equipment, need
Various accurate localization methods are used to position the head of user and hand；Needed to follow the trail of the position of Indoor Robot
To be positioned for Indoor Robot, be easy to be controlled robot.
The problem of causing positioning failure to prevent the signal from signal projector to be blocked, all directions can be received
On signal, it is necessary to install multiple signal receivers on the signal receiving device of alignment system.
In order to accurately carry out indoor positioning, it is necessary to which all signal receivers on signal receiving device can be normal
Work, so needing to carry out all signal receivers the test of performance.In the prior art, one by one using oscillograph
All signal receivers are tested, very labor intensive, and generally test is divided into two parts, is installed in signal receiver
Once tested when on circuit board, signal receiver and/be assembled into finished product (signal receiving device) after carry out one again
Secondary test, more cause the waste of time and manpower.
Utility model content
The utility model provides a kind of signal-testing apparatus, to solve existing performance test methods waste of manpower and time
The problem of.
The utility model provides a kind of signal-testing apparatus, including：
First input interface, signal processing module, microprocessor and display module；
First input interface electrically connects with signal receiving circuit, is received for multiple signals in reception signal receiving circuit
The multi-channel electric signal of device output；
Signal processing module, input electrically connect with first input interface, and output end is electrically connected with the microprocessor
Connect, for the multi-channel electric signal to be handled；
Microprocessor is used to carry out judgement processing based on the electric signal after the processing, it is determined that abnormal signal receiver,
And send cue to the display module and shown.
Optionally, multiple optical signal receivers that first input interface is specifically used in reception signal receiving circuit are defeated
The electric signal of multichannel first gone out and/or the electric signal of multichannel second of multiple ultrasonic signal receivers output；The signal transacting mould
Block is specifically used for the electric signal of multichannel first being converted to multiplex pulse voltage signal, and the electric signal of multichannel second is carried out
Amplification；The microprocessor is specifically used for being based on the second electric signal after the multiplex pulse voltage signal, and multichannel amplification
Judgement processing is carried out, it is determined that abnormal optical signal receiver and/or ultrasonic signal receivers, and send cue and show to described
Show that module is shown.
Optionally, signal-testing apparatus also includes the second input interface；Second input interface is with being mounted with the letter
The output end electrical connection of the signal receiving device of number receiving circuit, is mounted with that the signal of the signal receiving circuit connects for obtaining
The multi-channel electric signal of receiving apparatus output, and the multi-channel electric signal is transferred to microprocessor.
Optionally, the signal processing module includes the multiple and one-to-one photoelectric processing list of the electric signal of multichannel first
Member；The photoelectric processing unit includes：Transreactance amplifier, wave filter and envelope detector；The input of the transreactance amplifier
End is electrically connected by the input of the photoelectric processing unit with first input interface, for by first input interface
The electric signal of multichannel first of reception is converted to pulse voltage signal by current signal；The input of the wave filter and the mutual resistance
The output end electrical connection of amplifier, output end electrically connect with the input of the envelope detector, for filtering the pulse electricity
Press the noise in signal；The envelope detector is used to filter out electric signal caused by jamming light source from the pulse voltage signal
And the pulse voltage signal is exported to the microprocessor.
Optionally, it is single to include multiple acoustic-electric processing one-to-one with the electric signal of multichannel second for the signal processing module
Member；The input of the acoustic-electric processing unit electrically connects with first input interface, for second electric signal to be carried out
Amplify and filter, and filtered second electric signal output will be amplified respectively to the microprocessor.
Optionally, the microprocessor obtains the frequency of every road first electric signal based on multiplex pulse voltage signal, if institute
The difference for stating frequency and setpoint frequency is more than the first given threshold, it is determined that optical signal receiver corresponding to the electric signal of road first
There is exception, and send prompt message to the display module and shown；The microprocessor amplified based on multichannel second
The amplitude of different crests in each voltage signal of the electric signal acquisition per the electric signal of road second, compared with setting amplitude, if
Crest quantity more than setting amplitude is less than the second given threshold, it is determined that ultrasonic signal corresponding to the electric signal of road second receives
There is exception in device, and sends prompt message to the display module and shown.
Optionally, the microprocessor includes number obtainment unit and figure acquiring unit；The number obtainment unit is used
In the quantity for the pulse for calculating first electric signal received within the unit interval, and calculate per each in the electric signal of road second
Exceed the quantity of the crest of setting amplitude in voltage signal；The figure acquiring unit is used for will be per the electric signal of road second by simulating
Amount is converted to digital quantity, and the digital quantity is converted into graph data.
Optionally, the display module includes and multiple signal receivers multiple display lamps correspondingly；The display
Lamp is used to, when receiving the cue for the corresponding signal receiver that the microprocessor is sent, change what display lamp was shown
State.
Optionally, the display module include with multiple optical signal receivers multiple display lamps correspondingly, and/or with
Multiple ultrasonic signal receivers multiple display lamps correspondingly；The display lamp, which is used to work as, receives the microprocessor transmission
Corresponding optical signal receiver and/or ultrasonic signal receivers cue when, change the state that shows of display lamp.
Optionally, the relative position relation of multiple display lamps of the display module is corresponding with the signal receiving circuit
Multiple signal receivers relative position relation it is identical.
The signal-testing apparatus that the utility model embodiment provides, including the first input interface, signal processing module, Wei Chu
Manage device and display module.First input interface electrically connects with signal receiving circuit to be measured, is received for reception signal
Multiple signal receivers in device correspond the multi-channel electric signal of output；Signal processing module electrically connects with input interface,
For multi-channel electric signal to be handled；The microprocessor carries out breakdown judge according to the electric signal after multichannel process, and really
Abnormal electric signal is made, so as to determine abnormal signal receiver according to corresponding relation, and sends cue to showing mould
Block is shown.This programme can detect to multiple signal receivers in signal receiving circuit simultaneously, without picture
Existing method of testing is equally detected to all signal receivers one by one using oscillograph, can save manpower and
Time.
Brief description of the drawings
Fig. 1 is a kind of structure chart for signal-testing apparatus that the utility model embodiment provides；
Fig. 2 is the structure chart for another signal-testing apparatus that the utility model embodiment provides；
Fig. 3 is the structure chart for the third signal-testing apparatus that the utility model embodiment provides；
Fig. 4 is the structure chart for the photoelectric processing unit that the utility model embodiment provides；
Fig. 5 is the structure chart for the acoustic-electric processing unit that the utility model embodiment provides；
Fig. 6 is the structure chart for the display lamp that the utility model embodiment provides.
Fig. 7 is the signal receiving circuit optical signal receiver and ultrasonic signal receivers that the utility model embodiment provides
With the space arrangement relation figure of LED on display module.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than to restriction of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to the utility model rather than entire infrastructure are illustrate only in accompanying drawing.
The utility model embodiment provides a kind of signal-testing apparatus, and with reference to figure 1, Fig. 1 is that the utility model embodiment carries
A kind of structure chart of the signal-testing apparatus supplied, the signal-testing apparatus include；First input interface 11, signal processing module 2,
Microprocessor 3 and display module 4；
First input interface 11 electrically connects with signal receiving circuit, is connect for multiple signals in reception signal receiving circuit
Receive the multi-channel electric signal of device output；
Signal processing module 2, input electrically connect with the first input interface 11, and output end electrically connects with microprocessor 3, use
Handled in by multi-channel electric signal,；
Microprocessor 3 is used to determine abnormal signal receiver based on the electric signal after processing, and sends cue extremely
Display module 4 is shown.
The signal-testing apparatus that the utility model embodiment provides, including the first input interface, signal processing module, Wei Chu
Manage device and display module.First input interface electrically connects with signal receiving circuit to be measured, is received for reception signal
Multiple signal receivers in device correspond the multi-channel electric signal of output；Signal processing module electrically connects with input interface,
For multi-channel electric signal to be handled；The microprocessor carries out breakdown judge according to the electric signal after multichannel process, and really
Abnormal electric signal is made, so as to determine abnormal signal receiver according to corresponding relation, and sends cue to showing mould
Block is shown.This programme can detect to multiple signal receivers in signal receiving circuit simultaneously, without picture
Existing method of testing is equally detected to all signal receivers one by one using oscillograph, can save manpower and
Time.
On the basis of above-described embodiment, with reference to figure 2, Fig. 2 is that another signal that the utility model embodiment provides is surveyed
The structure chart that trial assembly is put, optionally, signal-testing apparatus also include the second input interface 12；
The output of signal receiving device of second input interface 12 with being mounted with signal receiving circuit and signal processing module
End electrical connection, for when signal receiving circuit and signal processing module are arranged on signal receiving device, obtaining signal and receiving
Multi-channel electric signal after the processing of device output.Signal processing module and the signal testing dress wherein installed in signal receiving device
The function phase of signal processing module 2 in putting is same.The output end and microprocessor 3 of second input interface 12 electrically connect.
Since it is desired that the signal receiver on signal receiving circuit plate is once tested, then when whole signal
When receiving circuit can work, signal-testing apparatus connects signal receiving circuit plate by the first input interface 11, so as to access
In signal receiving circuit, multi-channel electric signal is obtained, completes to test for the first time.
When completing the assembling of signal receiving device, in order to prevent damaging in an assembling process on signal receiving circuit plate
Signal receiver, then need to carry out second of test, signal receiving device is provided with output end, and signal-testing apparatus passes through second
Input interface 12 electrically connects with the output end of signal receiving device, the multi-channel electric signal after acquisition processing, completes second and tests,
Second test verification is multi-channel electric signal after the processing that signal processing module exports in signal receiving device, passes through checking
Whether multi-channel electric signal is abnormal, is also able to verify that signal processing module is with the presence or absence of abnormal in signal receiving device.
Tested twice in the present embodiment and share a signal-testing apparatus, because the interface for testing needs twice is different, institute
To set two input interfaces, i.e. the first input interface 11 and the second input interface 12, facilitate user to signal receiving circuit plate
Signal detection is carried out with signal receiving device.
Optionally, the first input interface 11 is specifically used for multiple optical signal receivers output in reception signal receiving circuit
The electric signal of multichannel first and/or multiple ultrasonic signal receivers output the electric signal of multichannel second；Signal processing module 2 is specific
For the electric signal of multichannel first to be converted into multiplex pulse voltage signal, the electric signal of multichannel second is amplified；Microprocessor 3
Specifically for carrying out judgement processing based on the second electric signal after multiplex pulse voltage signal, and multichannel amplification, it is determined that abnormal
Optical signal receiver and/or ultrasonic signal receivers, and send cue to display module 4 and shown.
Signal receiving device is device essential on indoor positioning device, for example, meeting on the VR helmets and VR handles
Setting signal reception device, for Indoor Robot, it is also desirable to pass through the signal receiving device localization machine in robot
The position of device people indoors, to be controlled to robot.Signal receiving device be typically integrated with multiple optical signal receivers and/
Or ultrasonic signal receivers/or electromagnetic signal receiver, the signal for receiving comprehensive are accurately positioned with realizing.Such as pass through
Multiple optical signal receivers obtain accurate positioning；Or location information can be also obtained by multiple ultrasonic signal receivers,
Such as by three ultrasonic signal receivers with regard to the positioning of object in three dimensions can be obtained；Or by optical signal receiver and
Ultrasonic signal receivers are positioned；Or positioned by electromagnetic signal and optical signal.
In a kind of specific embodiment, positioned by multiple optical signal receivers and ultrasonic signal receivers,
Optical signal receiver is used for orientation angle, and ultrasonic signal receivers are used for orientation distance.Exemplary, signal can be received and filled
Install and be set to spherical, have multiple optical signal receivers and ultrasonic signal receivers plus cross-distribution in ball surface, for example, 6
Optical signal receiver and 7 ultrasonic signal receivers, then signal receiving device signal receiver can comprehensive reception optical signal and
Ultrasonic signal.But in the assembling process of signal receiving device, optical signal receiver and ultrasonic signal receivers, which exist, to be damaged
Harmful possibility, if being compromised, location equipment can not realize that accurately positioning in signal receiving circuit and signal, it is necessary to connect
Optical signal receiver and ultrasonic signal receivers are detected in receiving apparatus assembling process, general test method is to pass through oscillography
Device detects the output signal of optical signal receiver and ultrasonic signal receivers one by one, and is found by the method for artificial judgment
The optical signal receiver and ultrasonic signal receivers of damage.
The signal-testing apparatus that the present embodiment provides, all optical signal receivers and ultrasonic signal can be received simultaneously
Device is tested.
With reference to figure 1, the first input interface 1 electrically connects with measured signal receiving circuit, in reception signal receiving circuit
First electric signal of each optical signal receiver output and the second electric signal of each ultrasonic signal receivers output.
The optical signal receiver can convert optical signals to electric signal.Optionally, the optical signal receiver can be
Photodiode, the area of the PN junction of photodiode is relatively large, and to receive incident light, photodiode is in reverse electricity
The lower work of pressure effect, when there is no light irradiation, reverse current is extremely faint, and when there is illumination, reverse current increases rapidly, and
The intensity of light is bigger, and reverse current is also bigger, and the change of light causes the change of photodiode current, so as to which photodiode is defeated
The electric signal gone out is able to record the optical signal that optical signal receiver receives.
Ultrasonic signal can be converted to electric signal by the ultrasonic signal receivers.Optionally, the ultrasonic signal receives
Device can be ultrasonic sensor, and ultrasonic sensor can be divided into piezoelectric type, electrodynamic type, condenser type etc. according to operation principle.
For example, when piezoelectric-type ultrasonic wave sensor receives ultrasonic vibration, an electric signal will be produced, so as to be recorded by electric signal
Ultrasonic signal.
Signal processing module 2 electrically connects with the first input interface 1 and microprocessor 3 respectively, for input interface 1 to be received
The electric signal of multichannel first and the electric signal of multichannel second handled, such as by the electric signal of multichannel first be converted to multiplex pulse electricity
Signal is pressed, the electric signal of multichannel second is amplified simultaneously filtering process.
The light that microprocessor 3 launches the second electric signal after above-mentioned every road pulse voltage signal and amplification with emission source
Signal and ultrasonic signal are contrasted, and judge abnormal pulse voltage signal and the second abnormal electric signal, and according to pulse
The one-to-one relationship of voltage signal and optical signal receiver, abnormal optical signal receiver is judged, according to the second of amplification
The one-to-one relationship of electric signal and ultrasonic signal receivers, judge abnormal ultrasonic signal receivers, and send prompting letter
Cease the optical signal receiver that is showed abnormality to display module 4, display module 4 and the numbering of ultrasonic signal receivers or other
Information so that user is known, so as to which the optical signal receiver to exception and ultrasonic signal receivers are replaced.
The signal-testing apparatus that the utility model embodiment provides, including the first input interface, signal processing module, Wei Chu
Manage device and display module.The input interface is used to electrically connect with signal receiving circuit to be measured, is received for reception signal
Multiple optical signal receivers in circuit correspond the electric signal of multichannel first exported and multiple ultrasonic signal receivers one by one
The electric signal of multichannel second of corresponding output；Signal processing module electrically connects with input interface, for by the electric signal of multichannel first and
The electric signal of multichannel second is handled, and specifically, the electric signal of multichannel first can be converted into multiplex pulse voltage signal, will be more
The electric signal of road second is amplified and filtered；The microprocessor is carried out according to the first electric signal after processing and the second electric signal
Breakdown judge, specifically, breakdown judge is carried out to multiplex pulse voltage signal and multichannel square wave voltage signal, and determine exception
Pulse voltage signal and the second electric signal, so as to determine that abnormal optical signal receiver and ultrasonic signal connect according to corresponding relation
Device is received, and sends cue to display module and is shown.This programme can be simultaneously to multiple light in signal receiving circuit
Signal receiver and multiple ultrasonic signal receivers are detected, without using oscillograph as existing method of testing
All optical signal receiver and ultrasonic signal receivers are detected one by one, manpower and time can be saved.Upper
On the basis of stating embodiment, with reference to figure 2, Fig. 2 is the structure for another signal-testing apparatus that the utility model embodiment provides
Figure, optionally, signal-testing apparatus also includes the second input interface 12；
First input interface 11 electrically connects with the output end of signal receiving circuit, more in signal receiving circuit for obtaining
The electric signal of multichannel first of individual optical signal receiver output and the electric signal of multichannel second of multiple ultrasonic signal receivers output；
The output of signal receiving device of second input interface 12 with being mounted with signal receiving circuit and signal processing module
End electrical connection, for when signal receiving circuit and signal processing module are arranged on signal receiving device, acquisition to be mounted with letter
The electric signal of multichannel first and the electric signal of multichannel second of the signal receiving device of number receiving circuit and signal processing module output.Its
In be arranged on signal receiving device on signal processing module and signal-testing apparatus on signal processing module 2 design phase
Together.
Since it is desired that one is carried out to the optical signal receiver on signal receiving circuit plate and ultrasonic signal receivers
Secondary test, then when whole signal receiving circuit can work, signal-testing apparatus connects signal by the first input interface 11
Circuit board for receiving, so as to access in signal receiving circuit, the electric signal of multichannel first and the electric signal of multichannel second are obtained, completes first
Secondary test.
When completing the assembling of signal receiving device, in order to prevent damaging in an assembling process on signal receiving circuit plate
Ultrasonic signal receivers and optical signal receiver, then need to carry out second of test, signal receiving device is provided with output end, believes
Number test device is electrically connected by the second input interface 12 with the output end of signal receiving device, to access signal receiving circuit
In, the electric signal of multichannel first and the electric signal of multichannel second are obtained, second is completed and tests.
Tested twice in the present embodiment and share a signal-testing apparatus, because the interface for testing needs twice is different, institute
To set two input interfaces, i.e. the first input interface 11 and the second input interface 12, facilitate user to signal receiving circuit plate
Signal detection is carried out with signal receiving device.
Optionally, with reference to figure 3, Fig. 3 is the structure chart for the third signal-testing apparatus that the utility model embodiment provides,
Signal processing module 2 includes the multiple and one-to-one photoelectric processing unit 21 of the electric signal of multichannel first；
The input of photoelectric processing unit 21 electrically connects with input interface 11, for the first electric signal to be handled, by
Current signal is converted to pulse voltage signal and exported to microprocessor.
If setting photodiode is optical signal receiver, the electric signal of optical signal receiver output is sinusoidal electric current
Signal, then photoelectric processing unit 21 can be converted to the current signal of sine pulse voltage signal, and export to microprocessor 3
Row breakdown judge.
With reference to figure 4, Fig. 4 be the utility model embodiment provide photoelectric processing unit structure chart, photoelectric processing unit
21 include：Transreactance amplifier 211, wave filter 212 and envelope detector 213；
The input IN1 and the electricity of the first input interface 11 that the input of transreactance amplifier 211 passes through photoelectric processing unit 21
Connection, the electric signal of multichannel first for the first input interface 11 to be received are converted to pulse voltage signal by current signal；Filter
The input of ripple device 212 electrically connects with the output end of transreactance amplifier 211, output end and the input electricity of envelope detector 213
Connection, for the noise in filtered pulse voltage signal；Envelope detector 213 is used to filter out interference light from pulse voltage signal
Electric signal caused by source and voltage pulse output signal are to microprocessor 3.
Transreactance amplifier 211 is a kind of circuit structure commonly used in the preposition amplification of Photoelectric Detection, and transreactance amplifier is used for
Foreign current is converted into voltage.In the present embodiment, the first electric signal that transreactance amplifier 211 receives the first input interface turns
Pulse voltage signal is changed to, and the noise in pulse voltage signal is filtered out by wave filter 212, but is existed in optical signal receiver
When receiving optical signal, because laser signal is weaker, interference is easily received under light or natural light, it is also necessary to pass through envelope
Detector 213 filters out electric signal caused by jamming light source in pulse voltage signal, because electric signal caused by jamming light source
Light source caused by pulse frequency and emission source is different, so envelope detector 213 filters out interference by the difference of pulse frequency
The signal of light source, envelope detector 213 will filter out the pulse voltage after disturbing by the output end OUT1 of photoelectric processing unit 21
Signal output is to microprocessor 3.
In addition, with reference to figure 4, optionally, photoelectric processing unit 21 is circumscribed with regulation electric capacity C4 and regulation resistance R7；Input
IN1 is electrically connected by adjusting electric capacity C4 with the first input interface 11, and the offset side RBIAS of photoelectric processing unit 21 is by adjusting electricity
R7 ground connection is hindered, electric capacity C4 and regulation resistance R7 size is adjusted by changing, can adjust the multiplication factor of photoelectric processing unit 21
And power consumption.Also include biasing circuit 214 in photoelectric processing unit 21, for for photoelectric processing unit 21 provide one it is suitable quiet
State operating point.
Photoelectric processing unit 21 also includes pin simulation power end AVDD and digital power end DVDD, photoelectric processing unit 21
Analog power end AVDD be grounded by electric capacity C5, and by resistance R8 connect high level form decoupling circuit, for filtering out power supply
Noise, the digital power end DVDD of photoelectric processing unit 21 are grounded by electric capacity C6, and analog power end AVDD and numeral electricity
Source DVDD is connected inside photoelectric processing unit 21 by resistance R9, for filtering out digital power end DVDD noise signal.
Optionally, the multiple and one-to-one acoustic-electric processing unit 22 of the electric signal of multichannel second is included with reference to figure 3, signal transacting mould 2；Sound
The input of electric treatment unit 22 electrically connects with the first input interface 11, for respectively by the second electric signal output after amplification extremely
Microprocessor 3.The second electric signal received by ultrasonic signal receivers is fainter, and clutter is more, it is necessary to by multistage
Amplify with filtering process the waveform of the second electric signal is analyzed and judged.
If setting piezoelectric-type ultrasonic wave sensor is ultrasonic signal receivers, the electric signal of ultrasonic signal receivers output
For pulse-like voltage signal, each pulse-like voltage signal is made up of many crests, and acoustic-electric processing unit 22 can be by pulse type electricity
Pressure signal is amplified and filtered, and exports to microprocessor 3 and carry out breakdown judge.
Optionally, with reference to figure 5, Fig. 5 is the structure chart for the acoustic-electric processing unit that the utility model embodiment provides, at acoustic-electric
Managing unit 22 includes the casacade multi-amplifier of series connection, exemplary, as shown in figure 5, settable dual-stage amplifier；Put the first place of series connection
The input of big device is electrically connected by the input IN2 of acoustic-electric processing unit with the first input interface 11, last position amplifier it is defeated
Go out end to electrically connect with microprocessor 3 by the output end OUT2 of acoustic-electric processing unit 22, every grade of amplifier is in amplification voltage signal
While be filtered.Because the second electric signal is the pulse-like signal for existing positive and negative values, and microprocessor 3 only handle on the occasion of,
So the input in the first amplifier provides a reference voltage VREF, with specific reference to voltage VREF according to the second electric signal
Depending on amplitude, as shown in figure 5, reference voltage VREF raises the magnitude of voltage of the second electric signal inputted from input IN2 so that
The minimum voltage value of pulse-like signal is on the occasion of so that microprocessor 3 is able to record and handled entirely on the occasion of pulse type waveform.
It is worth noting that, above-mentioned acoustic-electric processing unit and photoelectric processing unit are two kinds of specific realities for realizing signal transacting
Mode is applied, corresponding function can also be realized by other electronic devices, and can be other processing modes, the present embodiment pair
This is without limiting.
Optionally, microprocessor 3 specifically, is believed based on the electric signal of multichannel first after processing based on multiplex pulse voltage
The frequency per road first electric signal number is obtained, if frequency and the difference of setpoint frequency are more than the first given threshold, it is determined that the road
There is exception in optical signal receiver corresponding to first electric signal, and sends prompt message to display module 4 and shown；Microprocessor
Device 3 be additionally operable to based on processing after the electric signal of multichannel second, specifically, obtained based on filtered second electric signal is amplified per road
The amplitude of different crests in each pulse-like voltage signal of second electric signal, compared with setting amplitude, if more than setting
The crest quantity of amplitude is more than threshold value, then illustrates that the ultrasonic signal receivers corresponding to the road secondary signal are working properly, do not have
It is damaged, if the crest quantity more than setting amplitude is less than threshold value, it is determined that ultrasonic signal corresponding to the electric signal of road second connects
Receive device and exception occur, and send prompt message to display module 4 and shown；Further, after microprocessor 3 can be based on processing
The electric signal of multichannel second, specifically, figure number per the electric signal of road second is obtained based on filtered second electric signal is amplified
According to, and graph data is sent to display module 4 and shown.
For optical signal, microprocessor 3 directly by frequency judge the first electric signal whether exception, for example,
If the frequency of the optical signal of emission source transmitting is 60Hz, the frequency of the first electric signal exported by judging optical signal receiver
Whether it is 60Hz, you can judge optical signal receiver corresponding to the optical signal of road first with the presence or absence of abnormal.Signal processing module
First optical signals current signal is converted into pulse voltage signal, microprocessor 3 can be easy to obtain the frequency of the first optical signal
Rate, carry out the whether abnormal judgement of signal.Microprocessor 3 obtains the frequency per the electric signal of road first according to each road pulse voltage signal
Rate, and the frequency of the first electric signal of acquisition and the frequency of the laser signal of emission source transmitting, i.e. setpoint frequency are compared,
If frequency is identical, illustrates that the optical signal receiver corresponding to the signal of road first is working properly, be not damaged, if difference is big
In given threshold, i.e. difference is more than error range, then it is abnormal to judge that optical signal receiver occurs, microprocessor 3 sends prompting letter
Breath to display module 4 is shown.
For ultrasonic signal, microprocessor 3 directly can judge whether the second electric signal is abnormal by amplitude, for example,
If the frequency of the ultrasonic signal of emission source transmitting is 40kHz, each pulse type exported by judging ultrasonic signal receivers
Whether the number for reaching the crest of predetermined amplitude in the second electric signal is more than threshold value, to judge corresponding to the ultrasonic signal of road second
Ultrasonic signal receivers are with the presence or absence of abnormal.Second ultrasonic signal is amplified filtering by signal processing module, can be easy to micro-
Processor 3 obtains the amplitude of the second ultrasonic signal, carries out the whether abnormal judgement of signal.Microprocessor 3 amplifies according to each road
Voltage signal obtains the amplitude of different crests in each pulse-like voltage signal per road second electric signal, and by the second of acquisition
The amplitude of electric signal, if the crest quantity more than setting amplitude is more than threshold value, illustrates the road the compared with setting amplitude
Ultrasonic signal receivers corresponding to binary signal are working properly, are not damaged, if the crest quantity more than setting amplitude is less than
Threshold value, then it is abnormal to judge that ultrasonic signal receivers occur, microprocessor 3 sends prompt message to display module 4 and shown.Show
Example property, the frequency of the ultrasonic wave of emission source transmitting is 40kHz, and is sent 60 times each second, i.e., ultrasonic signal receivers are every
Second 60 pulse voltage signals are received, each pulse voltage signal is made up of 40kHz ultrasonic waveform.Then only need to calculate often
The amplitude of the crest included in the electric signal of road in each pulse voltage signal, and compared with setting amplitude, if each pulse
The quantity for exceeding the crest of setting amplitude in voltage signal is less than the second given threshold, for example, the second given threshold scope is
2000~4000, generally, there is each of abnormal ultrasonic wave in this number range by repeatedly measuring and experiment obtains
The quantity for exceeding the crest of setting amplitude in pulse voltage signal is less than this second given threshold scope.
But for ultrasonic signal, only exceed the ripple of setting amplitude in each pulse-like voltage signal by calculating
Peak number amount judges whether the second electric signal is abnormal it is possible that the phenomenon failed to judge and misjudge, so microprocessor 3 is based on putting
The big filtered electric signal of multichannel second obtains the graph data per the electric signal of road second, and graph data is sent to display mould
Block 4, display module 4 show the figure of every electric signal of road second, sentence so that user carries out failure according to figure to the second electric signal
It is disconnected, for example, the second electric signal received is not pulse-like voltage ripple, or receives the amplitude exception of the second electric signal, all
User is needed to be contrasted and judged.
Optionally, number obtainment unit 31 and figure acquiring unit 32 are included with reference to figure 3, microprocessor 3；
Number obtainment unit 31 is used for the quantity for calculating the pulse of the first electric signal received within the unit interval, and calculates
Exceed the quantity of the crest of setting amplitude in each second electric signal in each pulse-like voltage signal；Figure acquiring unit 32 is used
In digital quantity will be converted to by analog quantity per the electric signal of road second, and digital quantity is converted into graph data.
Microprocessor 3 is for handling digital quantity, if it is desired to obtains the second telecommunications of the pulse form of multiple crest compositions
Number figure, then need figure acquiring unit 32 that the analog quantity of second electric signal is converted into digital quantity, specifically, every identical
The numerical value of the current point in time of the second electric signal received is gathered for a period of time, the numerical value formed in numerical value and time plane
Point, and all numerical points are sequentially connected with, form graph data.Then microprocessor 3 again sends graph data to display
Module 4, then display module 4 oscillogram of the second electric signal is shown according to graph data.
Optionally, display module 4 includes and multiple signal receivers multiple display lamps correspondingly；Display lamp is used to work as
When receiving the cue of the corresponding signal receiver of the transmission of microprocessor 3, change the state that display lamp is shown.
Optionally, display module 4 includes one-to-one with multiple optical signal receivers and multiple ultrasonic signal receivers
Multiple display lamps, display lamp are used for when the corresponding optical signal receiver and ultrasonic signal receivers that receive microprocessor transmission
Cue when, change the state that shows of display lamp, such as the color of display lamp, light on and off；
Optionally, display module 4 can also include at least one display screen, and display screen is used for what is sent according to microprocessor
The graph data of the electric signal of multichannel second, show the oscillogram per the electric signal of road second.
Microprocessor 3 is capable of the quality of automatic decision optical signal receiver and ultrasonic signal receivers, and by with it is multiple
Multiple display lamps are prompted correspondingly for optical signal receiver and ultrasonic signal receivers, but because ultrasonic signal receives
The abnormal conditions of device are more complicated, except being prompted using display lamp, can also set display screen to show each telecommunications of road second
Number waveform, judged with user.
The display lamp can be LED, and the display lamp can identify failure by the change of color, if for example,
Optical signal receiver fault-free corresponding to display lamp, then display lamp shows green glow, if the optical signal corresponding to display lamp receives
There is failure in device, then the light that the display lamp is sent is red.The display lamp can also identify failure, example by light on and off situation
Such as, if display lamp does not have bright, optical signal receiver fault-free corresponding to the display lamp is illustrated, if display lamp quilt in test process
Light, then illustrate that optical signal receiver corresponding to the display lamp has failure.
Exemplary, settable model WS2812S LED is shown to failure.With reference to figure 6, Fig. 6 is this reality
The structure chart of the display lamp provided with new embodiment, the structure of the display lamp in Fig. 6 are WS2812S cascade structure.
WS2812S is an intelligent external control LED light source for integrating control circuit and illuminating circuit.Its external form and a 5050LED
Lamp bead is identical, and each element is a pixel.Intelligent digital interface data latch signal shaping is contained inside pixel
Amplification driving circuit, also include high-precision internal oscillator and programmable Given current controller part, pixel has been effectively ensured
The color of point light is highly consistent.
WS2812S includes data-out pin DI and data output pins DO, logic power pin VCC, for for control
Circuit is powered, and the energization pins VDD of whole LED, and pin VSS is then signal ground and power ground pin.
Because multiple WS2812S are connected in series, microprocessor 3 often sends a prompt message, and each WS2812S can connect
Receive data.Then microprocessor 3 is judging all optical signal receivers whether after exception, by the prompt message of exception and just
Normal prompt message is all packed into a packet, and the input information of all display lamps is included in this packet, this number
According to bag by first WS2812S input DI, first WS2812S by the input information about first WS2812S in packet
Take out, by remaining data, composition data bag is transmitted to second WS2812S by output end DO again, by that analogy, then institute
Some WS2812S can receive the prompt message of corresponding optical signal receiver by input DI, carry out display color
Change.
Multiple optical signal receivers and more on the arrangement of multiple display lamps and signal receiving circuit plate in display module 4
The arrangement of individual ultrasonic signal receivers is consistent, exemplary, believes as shown in fig. 7, including 3 light on signal receiving circuit plate
Number receiver 51 and 4 ultrasonic signal receivers, 52,3 optical signal receivers 51 and 4 ultrasonic signal receivers 52 are in circuit
Arranged on plate in rice font, display module 4 includes 7 LED display lamps, 41,7 LED display lamps 41 and arranged in rice font, each
LED display lamps are corresponded in an optical signal receiver 51 or a ultrasonic signal receivers 52, for example, on display module 4
The ultrasonic wave that LED display lamps positioned at rice font the top correspond on signal receiving circuit plate positioned at rice font the top receives
Device.This one-to-one relation, it is easy to tester to be intuitive to see which optical signal receiver or ultrasonic signal receivers have
Failure, it can be checked and be changed for faulty receiver.
The display screen is used for showing the oscillogram of the second electric signal, and the display screen can be LCDs or have
Machine light emitting display, and other are capable of the display screen of display waveform curve.
Optionally, in addition to：Power module and reseting module；Power module is used to provide work for signal-testing apparatus
Voltage；Reseting module is used for after the completion of test, measurement data is zeroed to re-start test.
Because the signal-testing apparatus that the present embodiment provides will provide twice for signal receiving circuit and signal receiving device
Test, and need to test substantial amounts of signal receiving circuit and signal receiving device, then after the completion of once testing, use
Reseting module is triggered in family by reset key, and measurement data is zeroed, and modules are to re-start test job.
In other embodiments, as signal receiving device signal receiving circuit on only include multiple OSPs,
Then signal-testing apparatus includes the first input interface, signal processing module, microprocessor and display module.First input connects
The electric signal of multichannel first for multiple optical signal receivers output that mouth is used in reception signal receiving circuit；The signal transacting mould
Block is used to the electric signal of multichannel first being converted to multiplex pulse voltage signal；The microprocessor is used to be based on the multichannel
Pulse voltage signal carries out judgement processing, it is determined that abnormal optical signal receiver, and cue is sent to the display module
Shown.The processing of signal processing module, microprocessor and display module to the first electric signal is as described in above-mentioned embodiment.
In other embodiments, as signal receiving device signal receiving circuit on only include multiple ultrasonic signal processings
Device, then signal-testing apparatus include the first input interface, signal processing module, microprocessor and display module.Described first is defeated
The electric signal of multichannel second for multiple ultrasonic signal receivers output that incoming interface is used in reception signal receiving circuit；The signal
Processing module is used to the electric signal of multichannel second being amplified；The microprocessor is used for after being amplified based on the multichannel
Second electric signal carries out judgement processing, it is determined that abnormal ultrasonic signal receivers, and cue is sent to the display module
Shown.The processing of signal processing module, microprocessor and display module to the second electric signal is as described in above-mentioned embodiment.
Pay attention to, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carried out for a person skilled in the art various bright
Aobvious change, readjust, be combined with each other and substitute without departing from the scope of protection of the utility model.Therefore, although passing through
Above example is described in further detail to the utility model, but the utility model is not limited only to above implementation
Example, in the case where not departing from the utility model design, other more equivalent embodiments can also be included, and it is of the present utility model
Scope is determined by scope of the appended claims.
Claims (10)
- A kind of 1. signal-testing apparatus, it is characterised in that including：First input interface, signal processing module, microprocessor and Display module；First input interface electrically connects with signal receiving circuit, is received for multiple signals in reception signal receiving circuit The multi-channel electric signal of device output；The signal processing module, input electrically connect with first input interface, and output end is electrically connected with the microprocessor Connect, for the multi-channel electric signal to be handled；The microprocessor is used to carry out judgement processing based on the multi-channel electric signal after the processing, it is determined that abnormal signal receives Device, and send cue to the display module and shown.
- 2. signal-testing apparatus according to claim 1, it is characterised in that first input interface is used for reception signal What the electric signal of multichannel first and/or multiple ultrasonic signal receivers of multiple optical signal receivers output in receiving circuit exported The electric signal of multichannel second；The signal processing module is used to the electric signal of multichannel first being converted to multiplex pulse voltage signal, by the multichannel Second electric signal is amplified；The microprocessor is sentenced for the second electric signal after being based on the multiplex pulse voltage signal, and multichannel amplification Disconnected processing, it is determined that abnormal optical signal receiver and/or ultrasonic signal receivers, and cue is sent to the display module Shown.
- 3. signal-testing apparatus according to claim 1, it is characterised in that it is defeated that the signal-testing apparatus also includes second Incoming interface；The output end of signal receiving device of second input interface with being mounted with the signal receiving circuit electrically connects, and is used for The multi-channel electric signal for the signal receiving device output for being mounted with the signal receiving circuit is obtained, and by the multiple telecommunication Number it is transferred to microprocessor.
- 4. signal-testing apparatus according to claim 2, it is characterised in that the signal processing module include it is multiple with it is more The one-to-one photoelectric processing unit of the electric signal of road first；The photoelectric processing unit includes：Transreactance amplifier, wave filter and envelope detector；The input of the transreactance amplifier is electrically connected by the input of the photoelectric processing unit with first input interface Connect, the electric signal of multichannel first for first input interface to be received is converted to pulse voltage signal by current signal；The input of the wave filter electrically connects with the output end of the transreactance amplifier, output end and the envelope detector Input electrically connects, for filtering the noise in the pulse voltage signal；The envelope detector is used to filter out from the pulse voltage signal described in electric signal caused by jamming light source and output Pulse voltage signal is to the microprocessor.
- 5. signal-testing apparatus according to claim 2, it is characterised in that the signal processing module include it is multiple with it is more The one-to-one acoustic-electric processing unit of the electric signal of road second；The input of the acoustic-electric processing unit electrically connects with first input interface, for second electric signal to be carried out Amplify and filter, and filtered second electric signal output will be amplified respectively to the microprocessor.
- 6. signal-testing apparatus according to claim 2, it is characterised in that：The microprocessor obtains the frequency per the electric signal of road first based on multiplex pulse voltage signal, if the frequency and setting The difference of frequency is more than the first given threshold, it is determined that and there is exception in optical signal receiver corresponding to the electric signal of road first, and Prompt message to the display module is sent to be shown；The microprocessor obtains each pulse voltage signal per the electric signal of road second based on the second electric signal that multichannel is amplified The amplitude of middle different crests, compared with setting amplitude, if the crest quantity more than setting amplitude is less than the second given threshold, It is abnormal then to determine that ultrasonic signal receivers corresponding to the electric signal of road second occur, and sends prompt message to the display module Shown.
- 7. signal-testing apparatus according to claim 6, it is characterised in that the microprocessor includes number obtainment unit With figure acquiring unit；The number obtainment unit is used for the quantity for calculating the pulse of first electric signal received within the unit interval, and counts Exceed the quantity of the crest of setting amplitude in the electric signal of Suan Mei roads second in each pulse voltage signal；The figure acquiring unit is used to that digital quantity will to be converted to by analog quantity per the electric signal of road second, and the digital quantity is turned It is changed to graph data.
- 8. signal-testing apparatus according to claim 1, it is characterised in that the display module includes connecing with multiple signals Receive device multiple display lamps correspondingly；The display lamp is used to, when receiving the cue for the corresponding signal receiver that the microprocessor is sent, change The state that display lamp is shown.
- 9. signal-testing apparatus according to claim 2, it is characterised in that the display module includes and multiple optical signals Receiver multiple display lamps correspondingly, and/or with multiple ultrasonic signal receivers multiple display lamps correspondingly；The display lamp is used for when the corresponding optical signal receiver and/or ultrasonic signal that receive the microprocessor transmission connect When receiving the cue of device, change the state that display lamp is shown.
- 10. signal-testing apparatus according to claim 8 or claim 9, it is characterised in that multiple display lamps of the display module Relative position relation it is identical with the relative position relation of corresponding multiple signal receivers in the signal receiving circuit.
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| CN201720937811.3U CN206962824U (en) | 2017-07-31 | 2017-07-31 | A kind of signal-testing apparatus |
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| CN201720937811.3U CN206962824U (en) | 2017-07-31 | 2017-07-31 | A kind of signal-testing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332630A (en) * | 2017-07-31 | 2017-11-07 | 北京凌宇智控科技有限公司 | A kind of signal-testing apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332630A (en) * | 2017-07-31 | 2017-11-07 | 北京凌宇智控科技有限公司 | A kind of signal-testing apparatus |
| CN107332630B (en) * | 2017-07-31 | 2024-04-16 | 北京凌宇智控科技有限公司 | Signal testing device |
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