CN205404716U - Fault detection device and object transmission detection system of correlation sensor - Google Patents
Fault detection device and object transmission detection system of correlation sensor Download PDFInfo
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- CN205404716U CN205404716U CN201620140428.0U CN201620140428U CN205404716U CN 205404716 U CN205404716 U CN 205404716U CN 201620140428 U CN201620140428 U CN 201620140428U CN 205404716 U CN205404716 U CN 205404716U
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Abstract
The utility model discloses a fault detection device of correlation sensor, including transmitting terminal detection module and receiving terminal detection module, transmitting terminal detection module have be used for the first link of being connected with the positive pole of the transmitter of correlation sensor and be used for and the second link of the negative pole connection of transmitter, receiving terminal detection module has the third link that is used for being connected with the power input end of the receiver of correlation sensor, be used for and fourth link that the signal output part of receiver connects and be used for and the 5th link of the earthing terminal connection of receiver, the voltage through detecting first link and the voltage of fourth link determine correlation sensor application apparatus's fault type. The utility model provides an object transmission detection system. Adopt the utility model discloses can distinguish correlation sensor application apparatus's fault type, improve the wrong accuracy of newspaper, make things convenient for equipment maintainer to carry out the overhaul of the equipments.
Description
Technical field
This utility model relates to sensor technical field, particularly relates to failure detector and the object transport detection system of a kind of opposite type sensor.
Background technology
Opposite type sensor includes emitter and receptor, wherein, emitter and receptor are arranged on the both sides of object transport passage, and the light that emitter sends directly is directed at receptor, mainly for detection of whether have between emitter and receptor object exist and object pass through situation.Such as, opposite type sensor can be applied in finance process equipment.
In finance process equipment, it will usually lay opposite type sensor in the both sides of dielectric transmission channel, mainly for detection of the transmission situation of passage medium.The light that the emitter of opposite type sensor sends is blocked with when not blocked by medium by medium, and receptor exports different level signals respectively, controls device and may determine that medium transmission situation in the channel according to the change of level signal.
Opposite type sensor is as the Primary Component of device interior, its quality directly affects the performance of its application apparatus, it is necessary before installation it is carried out quality testing, and, opposite type sensor application apparatus is in use it is possible that fault, now need detecting device to carry out fault detect, and report an error according to failure condition；Existing detection mode is the prompt facility fault when receptor opposite type sensor being detected exports sustained level signal.
But, inventor finds in implementing process of the present utility model, the situation causing the receptor output abnormality of opposite type sensor has transmitting terminal cable fault, receiving terminal cable fault and transmission channel fault etc., prior art cannot be distinguished by fault type, and this brings inconvenience to the maintenance of plant maintenance personnel.
Utility model content
Technical problem to be solved in the utility model is in that, it is provided that the failure detector of a kind of opposite type sensor, it is possible to accurately distinguish the fault type of opposite type sensor application apparatus, facilitates plant maintenance personnel to carry out overhaul of the equipments；This utility model provides a kind of object transport detection system on the other hand, opposite type sensor work can be controlled, with detect whether have object to exist between emitter and the receptor of opposite type sensor and object pass through situation, and can automatically detect fault type when the level signal of the receptor output abnormality of opposite type sensor, facilitate plant maintenance personnel to carry out overhaul of the equipments.
In order to solve above-mentioned technical problem, the utility model proposes the failure detector of a kind of opposite type sensor, it is characterised in that the failure detector of described opposite type sensor includes transmitting terminal detection module and receiving terminal detection module；
Described transmitting terminal detection module has the first link for being connected and the second link for being connected with the negative electrode of described emitter and described second link ground connection with the anode of the emitter of opposite type sensor；Described transmitting terminal detection module includes transmitting terminal control unit and the first resistance；Described transmitting terminal control unit has voltage output end and the first voltage acquisition end；Described voltage output end connects the first end of described first resistance, and described first voltage acquisition end connects the second end of described first resistance, and the second end of described first resistance is described first link；
Described receiving terminal detection module has the 3rd link for being connected with the power input of the receptor of opposite type sensor, for the 4th link being connected with the signal output part of described receptor and the 5th link for being connected with the earth terminal of described receptor, and described 5th link ground connection；Described receiving terminal detection module includes receiving terminal control unit and the second resistance；Described receiving terminal control unit has the second voltage acquisition end, and described second voltage acquisition end connects the first end of described second resistance；First end of described second resistance is described 4th link, and the second end of described second resistance is described 3rd link, and the second of described second resistance terminates into the first power supply signal.
Further, described transmitting terminal control unit includes the first controller, the first operational amplifier and the second operational amplifier；
Described first controller has data output end and the first data input pin；
The data output end of described first controller connects the first in-phase input end of described first operational amplifier；First inverting input of described first operational amplifier connects the first outfan of described first operational amplifier, and the first outfan of described first operational amplifier is the voltage output end of described transmitting terminal control unit；Second in-phase input end of described second operational amplifier is the first voltage acquisition end of described transmitting terminal control unit, second inverting input of described second operational amplifier connects the second outfan of described second operational amplifier, and the second outfan of described second operational amplifier connects the first data input pin of described first controller.
Alternatively, described transmitting terminal control unit also includes D/A conversion unit and the first AD conversion unit；
Described D/A conversion unit has digital signal input end and analog signal output；Described first AD conversion unit has the first input end of analog signal and the first digital signal output end；
The data output end of described first controller connect described first operational amplifier the first in-phase input end particularly as follows:
The data output end of described first controller connects the digital signal input end of described D/A conversion unit；The analog signal output of described D/A conversion unit connects the first in-phase input end of described first operational amplifier；
Described second operational amplifier second outfan connect described first controller the first data input pin particularly as follows:
Second outfan of described second operational amplifier connects the first input end of analog signal of described first AD conversion unit, and the first digital signal output end of described first AD conversion unit connects the first data input pin of described first controller.
Further, described receiving terminal control unit includes the second AD conversion unit and second controller；
Described second AD conversion unit has the second input end of analog signal and the second digital signal output end；Described second controller has the second data input pin；
Second input end of analog signal of described second AD conversion unit is the second voltage acquisition end of described receiving terminal control unit, and the second digital signal output end of described second AD conversion unit connects the second data input pin of described second controller.
Further, described transmitting terminal detection module also includes the first electric capacity；Described first operational amplifier also has positive power source terminal and negative power end；
The positive power source terminal of described first operational amplifier accesses second source signal, and the positive power source terminal of described first operational amplifier is also connected with the positive pole of described first electric capacity, the minus earth of described first electric capacity；The negative power end ground connection of described first operational amplifier.
Further, described transmitting terminal detection module also includes the second electric capacity；
The positive pole of described second electric capacity connects the second end of described first resistance, the minus earth of described second electric capacity.
Preferably, described transmitting terminal detection module also includes the first wireless communication unit of being connected with described transmitting terminal control unit；Described receiving terminal detection module also includes the second wireless communication unit being connected with described receiving terminal control unit；Described first wireless communication unit and described second wireless communication unit are connected by wireless signal.
Preferably, the failure detector of described opposite type sensor also includes at least one LED light, and described LED light is connected with described transmitting terminal control unit or described receiving terminal control unit.
In order to solve the problems referred to above, the one object transport that another aspect provides of the present utility model detects system, including the failure detector of any one opposite type sensor that opposite type sensor and this utility model provide；Described opposite type sensor includes the emitter and the receptor that are oppositely arranged on object transport passage both sides；
First link of the transmitting terminal detection module of the failure detector of described opposite type sensor is connected with the anode of described emitter, and the second link of the transmitting terminal detection module of the failure detector of described opposite type sensor is connected with the negative electrode of described emitter；
3rd link of the receiving terminal detection module of the failure detector of described opposite type sensor is connected with the power input of described receptor, 4th link of the receiving terminal detection module of the failure detector of described opposite type sensor is connected with the signal output part of described receptor, and the 5th link of the receiving terminal detection module of the failure detector of described opposite type sensor is connected with the earth terminal of described receptor.
Further, it is connected for pluggable between described emitter with described transmitting terminal detection module and between described receptor with described receiving terminal detection module.
Implement this utility model, have the advantages that
The failure detector of the opposite type sensor that this utility model provides, the voltage condition of voltage and the 4th link by detecting the first link, to judge the fault type of opposite type sensor application apparatus；The voltage of the first link that transmitting terminal control unit gathers according to the first voltage acquisition end, it may be judged whether for transmitting terminal fault, if then determining whether the fault type of transmitting terminal；The voltage of the 4th link that receiving terminal control unit gathers according to the second voltage acquisition end, it is determined whether for receiving terminal fault, if then determining whether receiving terminal fault type.Adopt this utility model can distinguish the fault type of opposite type sensor application apparatus, improve the accuracy reported an error so that equipment can be overhauled by plant maintenance personnel targetedly, remove fault efficiently.Additionally, this utility model also provides for a kind of object transport detection system, opposite type sensor work can be controlled, with detect whether have object to exist between emitter and the receptor of opposite type sensor and object pass through situation, and can automatically detect fault type when the level signal of the receptor output abnormality of opposite type sensor, including the fault of the fault of opposite type sensor itself or transmission channel, plant maintenance personnel are facilitated to carry out overhaul of the equipments.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the failure detector of a kind of opposite type sensor that this utility model provides；
Fig. 2 is the structural representation of the second embodiment of the failure detector of a kind of opposite type sensor that this utility model provides；
Fig. 3 is the structural representation of an embodiment of a kind of object transport detection system that this utility model provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
In this utility model embodiment, opposite type sensor includes emitter and receptor；Wherein, described emitter is for including anode and negative electrode；Described receptor includes power input, signal output part and earth terminal.
Referring to Fig. 1, it it is the structural representation of the first embodiment of the failure detector of a kind of opposite type sensor that this utility model provides.
The failure detector of the opposite type sensor in the present embodiment, including transmitting terminal detection module 1 and receiving terminal detection module 2；
Described transmitting terminal detection module 1 has the first link A1 for being connected and the second link A2 for being connected with the negative electrode of described emitter and described second link A2 ground connection with the anode of the emitter of opposite type sensor；Described transmitting terminal detection module 1 includes transmitting terminal control unit 11 and the first resistance R1；Described transmitting terminal control unit 11 has voltage output end and the first voltage acquisition end；Described voltage output end connects first end of described first resistance R1, and described first voltage acquisition end connects second end of described first resistance R1, and second end of described first resistance R1 is described first link A1；
Described receiving terminal detection module 2 has the 3rd link A3 for being connected with the power input of the receptor of opposite type sensor, for the 4th link A4 being connected with the signal output part of described receptor and the 5th link A5 for being connected with the earth terminal of described receptor, and described 5th link A5 ground connection；Described receiving terminal detection module 2 includes receiving terminal control unit 21 and the second resistance R2；Described receiving terminal control unit 21 has the second voltage acquisition end, and described second voltage acquisition end connects first end of described second resistance R2；First end of described second resistance R2 is described 4th link A4, and second end of described second resistance R2 is described 3rd link A3, and the second of described second resistance R2 terminates into the first power supply signal Vcc1.
The operation principle of the present embodiment is as follows:
Transmitting terminal control unit 11 regulates the output of voltage output end so that the voltage of the end of the first resistance R1 is equal to preset voltage value；If transmitting terminal control unit 11 detects the magnitude of voltage of the magnitude of voltage at the first link A1 place end equal to the first resistance R1, then failure judgement is that the cable that connects between the emitter of opposite type sensor and transmitting terminal detection module 1 occurs that the emitter of open circuit or opposite type sensor damages the open circuit caused；If transmitting terminal control unit 11 detects that the magnitude of voltage at the first link A1 place is equal to zero, then failure judgement is that the cable that connects between the emitter of opposite type sensor and transmitting terminal detection module 1 occurs that the emitter of short circuit or opposite type sensor damages the short circuit caused；If transmitting terminal control unit 11 detects the magnitude of voltage at the first link A1 place turn-on voltage equal to described emitter, then illustrate that the emitter of opposite type sensor is to the connection cable between transmitting terminal detection module 1 normally and emitter energy normal luminous.
It should be noted that, described preset voltage value is more than the turn-on voltage of described emitter, arranging of described predeterminated voltage need to meet the following conditions, and described predeterminated voltage is after described first resistance R1 dividing potential drop, and the magnitude of voltage at described first link A1 place is equal to the turn-on voltage of described emitter.Wherein, the turn-on voltage of the emitter of the opposite type sensor of different model can be different, should be determined on a case-by-case basis, for instance the opposite type sensor of model G310, and its turn-on voltage is 1.2V.
It should be noted that, the short circuit that the emitter damage connecting cable appearance short circuit or opposite type sensor between the emitter of opposite type sensor with transmitting terminal detection module 1 causes refers to described first link A1 and is directly connected with described second link A2, short circuit occurs.
Transmitting terminal control unit 11 regulates the output of voltage output end so that the voltage of the end of the first resistance R1 is equal to zero；If receiving terminal control unit 21 detects lasting high level, then failure judgement is that the cable that connects between the receptor of opposite type sensor and receiving terminal detection module 2 occurs that the receptor of open circuit or opposite type sensor damages the open circuit caused.It should be noted that the cable that connects herein occurs that opening a way occurs in the connection cable opened a way between the connection cable appearance open circuit or signal output part and the described 4th link A4 of described receptor that refer between the power input of described receptor and described 3rd link A3.
Referring to Fig. 2, it it is the structural representation of the second embodiment of the failure detector of a kind of opposite type sensor that this utility model provides.The present embodiment is that on the embodiment basis shown in Fig. 1 improves embodiment, the following is illustrating the present embodiment.
Specifically, described transmitting terminal control unit 11 includes the first controller the 111, first operational amplifier A 1 and the second operational amplifier A 2；
Described first controller 111 has data output end and the first data input pin；
The data output end of described first controller 111 connects the first in-phase input end of described first operational amplifier A 1；First inverting input of described first operational amplifier A 1 connects the first outfan of described first operational amplifier A 1, the voltage output end that the first outfan is described transmitting terminal control unit 11 of described first operational amplifier A 1；The first voltage acquisition end that second in-phase input end is described transmitting terminal control unit 11 of described second operational amplifier A 2, second inverting input of described second operational amplifier A 2 connects the second outfan of described second operational amplifier A 2, and the second outfan of described second operational amplifier A 2 connects the first data input pin of described first controller 111.
It should be noted that described first operational amplifier A 1 is for being amplified the signal of the first controller 111 output, described second operational amplifier A 2 is voltage follower, as buffer stage, and improves input impedance.
Further, described transmitting terminal control unit 11 also includes D/A conversion unit 113 and the first AD conversion unit 112；
Described D/A conversion unit 113 has digital signal input end and analog signal output；Described first AD conversion unit 112 has the first input end of analog signal and the first digital signal output end；
The data output end of described first controller 111 connect described first operational amplifier A 1 the first in-phase input end particularly as follows:
The data output end of described first controller 111 connects the digital signal input end of described D/A conversion unit 113；The analog signal output of described D/A conversion unit 113 connects the first in-phase input end of described first operational amplifier A 1；
Described second operational amplifier A 2 second outfan connect described first controller 111 the first data input pin particularly as follows:
Second outfan of described second operational amplifier A 2 connects the first input end of analog signal of described first AD conversion unit 112, and the first digital signal output end of described first AD conversion unit 112 connects the first data input pin of described first controller 111.
nullIt should be noted that，In the present embodiment，Described first controller 111 is not for having integrated DAC (DigitaltoAnalogConverter，Digital to analog converter) and ADC (AnalogtoDigitalConverter，Analog-digital converter) microcontroller，So described first controller 111 output is digital signal，And opposite type sensor is analogue signal driving，Therefore，Need the interface circuit increasing external D/A conversion unit 113 as described first controller 111，The digital signal that described first controller 111 exports is converted to analogue signal，By described first operational amplifier A 1, described analogue signal is amplified again，And then the emitter of opposite type sensor is driven by the analogue signal after described amplification，So as to it is luminous；Similarly, described first controller 111 requires that input signal is also digital signal, and the signal gathered at described first link A1 place is analogue signal, therefore, need the interface circuit increasing the first external AD conversion unit 112 as the first controller 111, the analogue signal collected at the first link A1 place is converted to digital signal, and then described digital signal is inputted from described first data input pin, make the first controller 111 can according to the input-signal judging fault type of the first data input pin, and when the input impedance of the first AD conversion unit 112 is less, the second operational amplifier A 2 can be adopted as voltage follower, to improve input impedance.
It should be noted that, as another preferred embodiment, described first controller 111 can be the microcontroller being integrated with DAC and ADC, when described first controller 111 is the microcontroller being integrated with DAC and ADC, described data output end can directly export analogue signal, described first data input pin can directly input analogue signal, at this moment, it is no longer necessary to external D/A conversion unit 113 and the first AD conversion unit 112.
It should be noted that digital signal is input to described D/A conversion unit 113 by described first controller 111, it is possible to adopt parallel data transfer mode can also use the data transfer mode of serial, for instance eight parallel-by-bit transmission and iic bus transmission.
Specifically, described receiving terminal control unit 21 includes the second AD conversion unit 211 and second controller 212；
Described second AD conversion unit 211 has the second input end of analog signal and the second digital signal output end；Described second controller 212 has the second data input pin；
The second voltage acquisition end that second input end of analog signal is described receiving terminal control unit 21 of described second AD conversion unit 211, the second digital signal output end of described second AD conversion unit 211 connects the second data input pin of described second controller 212.
It should be noted that in the present embodiment, second controller 212 is the microcontroller not having integrated ADC；The analogue signal of the signal output part output of the receptor of opposite type sensor to carry out analog digital conversion through the second AD conversion unit 211, after described analogue signal is converted into digital signal, input from the second data input pin again so that second controller 212 can according to the input-signal judging fault type of the second data input pin.
It should be noted that, as another preferred embodiment, described receiving terminal control unit 21 is the microcontroller of integrated ADC, when the microcontroller that described receiving terminal control unit 21 is integrated ADC, described second voltage acquisition end can directly input analogue signal, at this moment, it is no longer necessary to external ADC.
Further, described transmitting terminal detection module 1 also includes the first electric capacity C1；Described first operational amplifier A 1 also has positive power source terminal and negative power end；
The positive power source terminal of described first operational amplifier A 1 accesses second source signal Vcc2, and the positive power source terminal of described first operational amplifier A 1 is also connected with the positive pole of described first electric capacity C1, the minus earth of described first electric capacity C1；The negative power end ground connection of described first operational amplifier A 1.
Further, described transmitting terminal detection module 1 also includes the second electric capacity C2；
The positive pole of described second electric capacity C2 connects second end of described first resistance R1, the minus earth of described second electric capacity C2.
It should be noted that described first electric capacity C1 and described second electric capacity C2 is for being filtered second source signal Vcc2 and the voltage signal gathered at the first link A1 place.
As an embodiment alternatively, described transmitting terminal detection module 1 also includes the first wireless communication unit being connected with described transmitting terminal control unit 11；Described receiving terminal detection module 2 also includes the second wireless communication unit being connected with described receiving terminal control unit 21；Described first wireless communication unit and described second wireless communication unit are connected by wireless signal.
It should be noted that, described first wireless communication unit can be used for transmitting terminal detection module 1 and communicates with the smart machine with radio communication function, described second wireless communication unit communicates for receiving terminal detection module 2 and the described smart machine with radio communication function, to realize fault type information is sent to described smart machine, described smart machine is utilized to quote fault type.Wherein, described smart machine can be mobile phone, flat board or computer etc..Specifically, after transmitting terminal detection module 1 or receiving terminal control unit 21 detect fault type, corresponding fault type information is sent to the first wireless communication unit by described transmitting terminal control unit 11, corresponding fault type information is sent to the second wireless communication unit by described receiving terminal control unit 21, described fault type information is sent to the wireless communication unit in described smart machine by described first wireless communication unit and described second wireless communication unit, described smart machine receives described fault type information and is presented by described fault type, to realize quoting fault type exactly, it is beneficial to plant maintenance personnel and carries out breakdown maintenance targetedly.
As an embodiment alternatively, the failure detector of described opposite type sensor also includes at least one LED (LightEmittingDiode, light emitting diode) display lamp, described LED light is connected with described transmitting terminal control unit 11 or described receiving terminal control unit 21.
It should be noted that, after the failure detector of described opposite type sensor detects fault type, the fault type that LED light instruction is different can be used, N number of LED light such as can be set, this N number of display lamp is numbered respectively, it is numbered 1～N, when different fault types occurs, lights one of them LED light being numbered 1～N respectively；Or a LED light that can send different colours light is set, when different fault types occur, it is intended that this LED light sends different colors；To realize succinctly, to clearly illustrate fault type, it is beneficial to plant maintenance personnel and carries out breakdown maintenance targetedly.
It should be noted that, described first wireless communication unit and described second wireless communication unit can be also used for described transmitting terminal control unit 11 and communicate with described receiving terminal control unit 21, in the case, N number of LED light all can be connected with transmitting terminal control unit 11 or all be connected with receiving terminal control unit 21；Such as, N number of LED light is all connected with transmitting terminal control unit 11；When detection is for transmitting terminal fault, the corresponding LED that transmitting terminal control unit 11 control is attached thereto lights；When detection is for receiving terminal fault, receiving terminal control unit 21 and transmitting terminal control unit 11 are communicated by described first wireless communication unit and the second wireless communication unit, receiving terminal control unit 21 is by corresponding control signal to transmitting terminal control unit 11, and the corresponding LED that transmitting terminal control unit 11 control is attached thereto lights.
The operation principle of the present embodiment is:
First controller 111 of transmitting terminal control unit 11 regulates the output of data output end, and the digital signal of output is input in D/A conversion unit 113, the digital signal of input is changed by D/A conversion unit 113, export corresponding analogue signal, this analogue signal is amplified by the first operational amplifier A 1 so that the voltage of the end of the first resistance R1 is equal to preset voltage value；If transmitting terminal control unit 11 detects the magnitude of voltage of the magnitude of voltage at the first link A1 place end equal to the first resistance R1, then failure judgement is that the cable that connects between the emitter of opposite type sensor and transmitting terminal detection module 1 occurs that the emitter of open circuit or opposite type sensor damages the open circuit caused；If transmitting terminal control unit 11 detects that the magnitude of voltage at the first link A1 place is equal to zero, then failure judgement is that the cable that connects between the emitter of opposite type sensor and transmitting terminal detection module 1 occurs that the emitter of short circuit or opposite type sensor damages the short circuit caused；If transmitting terminal control unit 11 detects the magnitude of voltage at the first link A1 place turn-on voltage equal to emitter, then illustrate that the emitter of opposite type sensor is to the connection cable between transmitting terminal detection module 1 normally and emitter energy normal luminous.
It should be noted that, described preset voltage value is more than the turn-on voltage of described emitter, arranging of described predeterminated voltage need to meet the following conditions, and described predeterminated voltage is after described first resistance R1 dividing potential drop, and the magnitude of voltage at described first link A1 place is equal to the turn-on voltage of described emitter.Wherein, the turn-on voltage of the emitter of the opposite type sensor of different model can be different, should be determined on a case-by-case basis, for instance the opposite type sensor of model G310, and its turn-on voltage is 1.2V.
It should be noted that, the short circuit that the emitter damage connecting cable appearance short circuit or opposite type sensor between the emitter of opposite type sensor with transmitting terminal detection module 1 causes refers to described first link A1 and is directly connected with described second link A2, short circuit occurs.
First controller 111 of transmitting terminal control unit 11 regulates the output of data output end, the voltage making the end of the first resistance R1 is zero, the voltage of adjustment process and the end making the first resistance R1 is that this process of preset voltage value is similar, repeats no more herein；If receiving terminal control unit 21 detects lasting high level, then failure judgement is that the cable that connects between the receptor of opposite type sensor and receiving terminal detection module 2 occurs that the receptor of open circuit or opposite type sensor damages the open circuit caused.
A kind of object transport detection system that this utility model embodiment also provides for, as shown in Figure 3, it is the structural representation of an embodiment of a kind of object transport detection system that this utility model provides, including the failure detector of a kind of opposite type sensor that opposite type sensor and above-mentioned first embodiment provide；Described opposite type sensor includes the emitter 3 and the receptor 4 that are oppositely arranged on object transport passage both sides；
First link A1 of the transmitting terminal detection module 1 of the failure detector of described opposite type sensor is connected with the anode of described emitter 3, and the second link A2 of the transmitting terminal detection module 1 of the failure detector of described opposite type sensor is connected with the negative electrode of described emitter 3；
3rd link A3 of the receiving terminal detection module 2 of the failure detector of described opposite type sensor is connected with the power input of described receptor 4,4th link A4 of the receiving terminal detection module 2 of the failure detector of described opposite type sensor is connected with the signal output part of described receptor 4, and the 5th link A5 of the receiving terminal detection module 2 of the failure detector of described opposite type sensor is connected with the earth terminal of described receptor 4.
Further, it is connected for pluggable between described emitter 3 with described transmitting terminal detection module 1 and between described receptor 4 with described receiving terminal detection module 2.
It should be noted that, described opposite type sensor includes the emitter 3 and the receptor 4 that are oppositely arranged on object transport passage both sides, described being oppositely arranged is specially described receptor 4 and is arranged on the emitting light path of described emitter 3, so that when being absent from examining object on the emitting light path of described emitter 3, the light that described emitter 3 sends can be received by described receptor 4.
It should be noted that the described pluggable cable that is connected as connects or carries out electrical connection etc. with the form of socket and plug.In like manner, there is open circuit in the connection cable described in this utility model embodiment, it is also possible to refers to that socket separates with plug, loses electric connecting relation.
It should be noted that in the present embodiment, opposite type sensor includes emitter 3 and receptor 4, wherein, emitter 3 is light emitting diode, and receptor 4 includes light sensitive diode, logical block and audion.Emitter 3 and receptor 4 are arranged on the both sides of object transport passage, and the light that emitter 3 sends directly is directed at receptor 4, mainly for detection of the object between emitter 3 and receptor 4 by situation or with or without object existence.In the particular embodiment, the opposite type sensor that opposite type sensor can select model to be G310.
The operation principle of this opposite type sensor is, connects with the mains, and when the voltage of the anode of emitter 3 reaches conducting voltage, emitter 3 is luminous；When there is no shelter between emitter 3 and receptor 4, the light sensitive diode of receptor 4 forms photoelectric current, logical block output low level, the audion driven by logical block is not turned on, and the signal output part of receptor 4 exports high level under the effect of pull-up resistor (i.e. the second resistance R2)；When there is shelter between emitter 3 and receptor 4, the light that emitter 3 sends is blocked, receptor 4 cannot receive light, light sensitive diode can not form photoelectric current, logical block output high level, drives triode ON, and the signal output part of receptor 4 is pulled low, therefore, signal output part output low level.
The operation principle of the present embodiment is:
When receiving terminal control unit 21 detects lasting low level, transmitting terminal control unit 11 regulates the output of voltage output end so that the voltage of the end of the first resistance R1 is equal to preset voltage value；If transmitting terminal control unit 11 detects the magnitude of voltage of the magnitude of voltage at the first link A1 place end equal to the first resistance R1, then failure judgement is that the cable that connects between the emitter 3 of opposite type sensor and transmitting terminal detection module 1 occurs that the emitter 3 of open circuit or opposite type sensor damages the open circuit caused；If transmitting terminal control unit 11 detects that the magnitude of voltage at the first link A1 place is equal to zero, then failure judgement is that the cable that connects between the emitter 3 of opposite type sensor and transmitting terminal detection module 1 occurs that the emitter 3 of short circuit or opposite type sensor damages the short circuit caused；If transmitting terminal control unit 11 detects the magnitude of voltage turn-on voltage equal to emitter 3 at the first link A1 place, then illustrate that the emitter 3 of opposite type sensor is normal to the connection cable between transmitting terminal detection module 1 and emitter 3 can normal luminous, then failure judgement is there is foreign body in transmission channel, for instance paperboard.It should be noted that, when there is foreign body in transmission channel, the light that the emitter 3 of opposite type sensor sends is blocked always, and receptor 4 cannot receive light, therefore the signal output part of receptor 4 continues output low level signal so that receiving terminal control unit 21 detects lasting low level.
It should be noted that, described preset voltage value is more than the turn-on voltage of described emitter 3, arranging of described predeterminated voltage need to meet the following conditions, described predeterminated voltage is after described first resistance R1 dividing potential drop, and the magnitude of voltage at described first link A1 place is equal to the turn-on voltage of described emitter 3.Wherein, the turn-on voltage of the emitter 3 of the opposite type sensor of different model can be different, should be determined on a case-by-case basis, for instance the opposite type sensor of model G310, and its turn-on voltage is 1.2V.
It should be noted that, the short circuit that emitter 3 damage connecting cable appearance short circuit or opposite type sensor between the emitter 3 of opposite type sensor and transmitting terminal detection module 1 causes refers to described first link A1 and is directly connected with described second link A2, short circuit occurs.
When receiving terminal control unit 21 detects lasting high level, transmitting terminal control unit 11 regulates the output of voltage output end, make the voltage of end of the first resistance R1 equal to zero, the voltage of adjustment process and the end making the first resistance R1 is that this process of preset voltage value is similar, repeats no more herein；If receiving terminal control unit 21 still detects lasting high level, then failure judgement is that the cable that connects between the receptor 4 of opposite type sensor and receiving terminal detection module 2 occurs that the receptor 4 of open circuit or opposite type sensor damages the open circuit caused.
nullIt should be noted that，In the object transport detection system that this utility model provides，If the failure detector of opposite type sensor includes the first wireless communication unit and the second wireless communication unit，Described first wireless communication unit and described second wireless communication unit can be also used for realizing the data communication between described transmitting terminal control unit 11 and described receiving terminal control unit 21，Such as when receiving terminal control unit 21 detects the output abnormal signal of the receptor 4 of opposite type sensor，Receiving terminal control unit 21 sends corresponding control signal to the second wireless communication unit，Described second wireless communication unit and described first wireless communication unit carry out radio communication，Described control signal is sent to transmitting terminal control unit 11，Transmitting terminal control unit 11 is made to control output，To regulate the voltage of the end of the first resistance R1.Specifically, when receiving terminal control unit 21 detects lasting low level, described receiving terminal control unit 21 sends control signals to the second wireless communication unit, second wireless communication unit and the first wireless communication unit communicate, described control signal is sent to transmitting terminal control unit 11, described transmitting terminal control unit 11 regulates the output of voltage output end and is input in D/A conversion unit 113 by the digital signal of output, the digital signal of input is changed by D/A conversion unit 113, export corresponding analogue signal, this analogue signal is amplified by the first operational amplifier A 1, make the voltage of end of the first resistance R1 equal to preset voltage value；When receiving terminal control unit 21 detects lasting high level, regulate the voltage of the end of the first resistance R1, so as to null Principle of Process is similar, repeat no more herein.
It should be noted that, if desired realize the communication between described transmitting terminal control unit 11 and described receiving terminal control unit 21, described transmitting terminal control unit 11 and the described smart machine with radio communication function and described receiving terminal control unit 21 and the described smart machine with radio communication function, then described first wireless communication unit and described second wireless communication unit must be the wireless communication unit of transceiver simultaneously.
Compared to having the beneficial effects that of prior art, the failure detector of the opposite type sensor that this utility model provides and object transport detection system:
The failure detector of the opposite type sensor that this utility model provides, the voltage condition of voltage and the 4th link by detecting the first link, to judge the fault type of opposite type sensor application apparatus；The voltage of the first link that transmitting terminal control unit gathers according to the first voltage acquisition end, it may be judged whether for transmitting terminal fault, if then determining whether the fault type of transmitting terminal；The voltage of the 4th link that receiving terminal control unit gathers according to the second voltage acquisition end, it is determined whether for receiving terminal fault, if then determining whether receiving terminal fault type.Adopt this utility model can distinguish the fault type of opposite type sensor application apparatus, improve the accuracy reported an error so that equipment can be overhauled by plant maintenance personnel targetedly, remove fault efficiently.Additionally, this utility model also provides for a kind of object transport detection system, opposite type sensor work can be controlled, with detect whether have object to exist between emitter and the receptor of opposite type sensor and object pass through situation, and can automatically detect fault type when the level signal of the receptor output abnormality of opposite type sensor, including the fault of the fault of opposite type sensor itself or transmission channel, plant maintenance personnel are facilitated to carry out overhaul of the equipments.
The above is preferred implementation of the present utility model; it should be pointed out that, for those skilled in the art, under the premise without departing from this utility model principle; can also making some improvement and deformation, these improve and deformation is also considered as protection domain of the present utility model.
Claims (10)
1. the failure detector of an opposite type sensor, it is characterised in that include transmitting terminal detection module and receiving terminal detection module；
Described transmitting terminal detection module has the first link for being connected and the second link for being connected with the negative electrode of described emitter and described second link ground connection with the anode of the emitter of opposite type sensor；Described transmitting terminal detection module includes transmitting terminal control unit and the first resistance；Described transmitting terminal control unit has voltage output end and the first voltage acquisition end；Described voltage output end connects the first end of described first resistance, and described first voltage acquisition end connects the second end of described first resistance, and the second end of described first resistance is described first link；
Described receiving terminal detection module has the 3rd link for being connected with the power input of the receptor of opposite type sensor, for the 4th link being connected with the signal output part of described receptor and the 5th link for being connected with the earth terminal of described receptor, and described 5th link ground connection；Described receiving terminal detection module includes receiving terminal control unit and the second resistance；Described receiving terminal control unit has the second voltage acquisition end, and described second voltage acquisition end connects the first end of described second resistance；First end of described second resistance is described 4th link, and the second end of described second resistance is described 3rd link, and the second of described second resistance terminates into the first power supply signal.
2. the failure detector of opposite type sensor as claimed in claim 1, it is characterised in that described transmitting terminal control unit includes the first controller, the first operational amplifier and the second operational amplifier；
Described first controller has data output end and the first data input pin；
The data output end of described first controller connects the first in-phase input end of described first operational amplifier；First inverting input of described first operational amplifier connects the first outfan of described first operational amplifier, and the first outfan of described first operational amplifier is the voltage output end of described transmitting terminal control unit；Second in-phase input end of described second operational amplifier is the first voltage acquisition end of described transmitting terminal control unit, second inverting input of described second operational amplifier connects the second outfan of described second operational amplifier, and the second outfan of described second operational amplifier connects the first data input pin of described first controller.
3. the failure detector of opposite type sensor as claimed in claim 2, it is characterised in that described transmitting terminal control unit also includes D/A conversion unit and the first AD conversion unit；
Described D/A conversion unit has digital signal input end and analog signal output；Described first AD conversion unit has the first input end of analog signal and the first digital signal output end；
The data output end of described first controller connect described first operational amplifier the first in-phase input end particularly as follows:
The data output end of described first controller connects the digital signal input end of described D/A conversion unit；The analog signal output of described D/A conversion unit connects the first in-phase input end of described first operational amplifier；
Described second operational amplifier second outfan connect described first controller the first data input pin particularly as follows:
Second outfan of described second operational amplifier connects the first input end of analog signal of described first AD conversion unit, and the first digital signal output end of described first AD conversion unit connects the first data input pin of described first controller.
4. the failure detector of opposite type sensor as claimed in claim 1, it is characterised in that described receiving terminal control unit includes the second AD conversion unit and second controller；
Described second AD conversion unit has the second input end of analog signal and the second digital signal output end；Described second controller has the second data input pin；
Second input end of analog signal of described second AD conversion unit is the second voltage acquisition end of described receiving terminal control unit, and the second digital signal output end of described second AD conversion unit connects the second data input pin of described second controller.
5. the failure detector of opposite type sensor as claimed in claim 2, it is characterised in that described transmitting terminal detection module also includes the first electric capacity；Described first operational amplifier also has positive power source terminal and negative power end；
The positive power source terminal of described first operational amplifier accesses second source signal, and the positive power source terminal of described first operational amplifier is also connected with the positive pole of described first electric capacity, the minus earth of described first electric capacity；The negative power end ground connection of described first operational amplifier.
6. the failure detector of opposite type sensor as claimed in claim 1, it is characterised in that described transmitting terminal detection module also includes the second electric capacity；
The positive pole of described second electric capacity connects the second end of described first resistance, the minus earth of described second electric capacity.
7. the failure detector of opposite type sensor as claimed in claim 1, it is characterised in that described transmitting terminal detection module also includes the first wireless communication unit being connected with described transmitting terminal control unit；Described receiving terminal detection module also includes the second wireless communication unit being connected with described receiving terminal control unit；Described first wireless communication unit and described second wireless communication unit are connected by wireless signal.
8. the failure detector of the opposite type sensor as described in any one of claim 1～7, it is characterized in that, the failure detector of described opposite type sensor also includes at least one LED light, and described LED light is connected with described transmitting terminal control unit or described receiving terminal control unit.
9. an object transport detection system, it is characterised in that described object transport detection system includes opposite type sensor and the failure detector of the opposite type sensor as described in any one of claim 1～8；Described opposite type sensor includes the emitter and the receptor that are oppositely arranged on object transport passage both sides；
First link of the transmitting terminal detection module of the failure detector of described opposite type sensor is connected with the anode of described emitter, and the second link of the transmitting terminal detection module of the failure detector of described opposite type sensor is connected with the negative electrode of described emitter；
3rd link of the receiving terminal detection module of the failure detector of described opposite type sensor is connected with the power input of described receptor, 4th link of the receiving terminal detection module of the failure detector of described opposite type sensor is connected with the signal output part of described receptor, and the 5th link of the receiving terminal detection module of the failure detector of described opposite type sensor is connected with the earth terminal of described receptor.
10. object transport detection system as claimed in claim 9, it is characterised in that be connected for pluggable between described emitter with described transmitting terminal detection module and between described receptor with described receiving terminal detection module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620140428.0U CN205404716U (en) | 2016-02-24 | 2016-02-24 | Fault detection device and object transmission detection system of correlation sensor |
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| CN201620140428.0U CN205404716U (en) | 2016-02-24 | 2016-02-24 | Fault detection device and object transmission detection system of correlation sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621280A (en) * | 2017-09-25 | 2018-01-23 | 深圳怡化电脑股份有限公司 | A kind of sensor detector |
| CN108270299A (en) * | 2017-01-03 | 2018-07-10 | 现代自动车株式会社 | The equipment for detecting foreign matter of mobile laser is used in Wireless power transmission system |
| CN108363380A (en) * | 2017-01-26 | 2018-08-03 | 英飞凌科技股份有限公司 | Sensor controller and sensor-signal receiver and its method |
| CN114543862A (en) * | 2021-10-27 | 2022-05-27 | 深圳市施特安邦科技有限公司 | Grating sensor quality detection system |
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2016
- 2016-02-24 CN CN201620140428.0U patent/CN205404716U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108270299A (en) * | 2017-01-03 | 2018-07-10 | 现代自动车株式会社 | The equipment for detecting foreign matter of mobile laser is used in Wireless power transmission system |
| CN108363380A (en) * | 2017-01-26 | 2018-08-03 | 英飞凌科技股份有限公司 | Sensor controller and sensor-signal receiver and its method |
| CN107621280A (en) * | 2017-09-25 | 2018-01-23 | 深圳怡化电脑股份有限公司 | A kind of sensor detector |
| CN107621280B (en) * | 2017-09-25 | 2024-03-29 | 深圳怡化电脑股份有限公司 | Sensor testing device |
| CN114543862A (en) * | 2021-10-27 | 2022-05-27 | 深圳市施特安邦科技有限公司 | Grating sensor quality detection system |
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