CN109724672A - The transmitter and electromagnetic wave level switch of electromagnetic wave level switch - Google Patents
The transmitter and electromagnetic wave level switch of electromagnetic wave level switch Download PDFInfo
- Publication number
- CN109724672A CN109724672A CN201910156758.7A CN201910156758A CN109724672A CN 109724672 A CN109724672 A CN 109724672A CN 201910156758 A CN201910156758 A CN 201910156758A CN 109724672 A CN109724672 A CN 109724672A
- Authority
- CN
- China
- Prior art keywords
- energy
- actual transmission
- testing result
- electromagnetic wave
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 77
- 238000012360 testing method Methods 0.000 claims abstract description 69
- 238000012545 processing Methods 0.000 claims abstract description 50
- 238000001514 detection method Methods 0.000 claims abstract description 30
- 230000003321 amplification Effects 0.000 claims description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 9
- 230000004913 activation Effects 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 28
- 230000006870 function Effects 0.000 description 22
- 238000012544 monitoring process Methods 0.000 description 18
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 230000007774 longterm Effects 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Transmitters (AREA)
Abstract
This application involves the transmitter of electromagnetic wave level switch and electromagnetic wave level switch, belong to electromagnetic wave level switch technical field.The application includes: transmitting module, for emitting electromagnetic wave；Detection module, for detecting the emitted energy of the transmitting module, and output test result signal；Processing module determines the actual transmission energy of the transmitting module according to the testing result signal for receiving the testing result signal, judges whether the actual transmission energy meets preset condition, if conditions are not met, then being handled.The self-test processing of transmitter emitted energy is helped to realize by the application, and then helps to be promoted the reliability of electromagnetic wave level switch detection.
Description
Technical field
The application belongs to electromagnetic wave level switch technical field, and in particular to the transmitter and electromagnetism of electromagnetic wave level switch
Wave level switch.
Background technique
Electromagnetic wave level switch is generally used in process control, for monitoring the presence or absence of pipeline, feed bin, hopper material.
Electromagnetic wave level switch includes transmitter and receiver, and transmitter and receiver are using installation face-to-face.Transmitter
Electromagnetic signals, if the transmission path between from transmitter to receiver is absorbed or the object of reflection electromagnetic wave energy
Body stops, and receiver will be unable to detect electromagnetic wave energy signal or receive faint energy signal.Receiver is according to connecing
Whether there is or not, powers for the signal received to judge whether to have between transmitter and receiver material barrier, and control relay output is realized
Instruction and control purpose.
Receiver is by setting energy threshold to determine whether there is material barrier, and energy threshold connects when being set in no material
Between the energy value of receipts and while having material blocking received energy value, when receiving energy and being higher than threshold value, determine to stop without material,
When receiving energy lower than threshold value, it is determined with material blocking.Different materials is different to the blocking capability of electromagnetic wave, general Gao Jie
The material of electric constant is good to blocking electromagnetic waves effect, and receiver does not receive signal or receives faint signal；But low dielectric
The material of constant is bad to blocking electromagnetic waves effect, even if being blocked fully between transmitter and receiver, the energy received
Also stronger, it may be close to emitted energy.Received energy value and when having material when due to energy threshold being between no material
Between received energy value, this range very little, usual energy threshold can be positioned proximate to received energy value when no material.
Currently, the transmitter of electromagnetic wave level switch does not have adjustment function to the energy of transmitting electromagnetic wave.Transmitter
The energy for issuing electromagnetic wave is influenced by external condition, such as: temperature, aging etc., it cannot be guaranteed that launch energy magnitude never becomes.Temperature
The factors such as degree variation, instrument aging will lead to emitted energy than presetting the weak of energy value, so the reception in no material
Energy also weakens therewith.In this case, reception energy when no material is possible to become closer to energy threshold even
Lower than energy threshold, once being lower than energy threshold, electromagnetic wave level switch will export the signal of material blocking, cause to occur
Wrong report.
And for some special industries, electromagnetic wave level switch is frequently used for low Low Level alarm, once level breaks through warning
Height will lead to serious accident, or even cause casualties.In most of industrial processes, level control is good
In the case where, electromagnetic wave level switch is chronically at material blocked state, and receiver does not receive signal and is failure to actuate for a long time.By
It is failure to actuate for a long time in receiver, so being difficult to judge whether transmitter works normally.Transmitter is if there is failure, noenergy
It issues or the too low receiver that yet will appear of energy does not receive signal.Currently, scheme in the related technology can not all identify hair
Emitter whether failure.If transmitter has already appeared failure, but user can not have found, that is, entire electromagnetic wave level switch
Monitoring function failure, cannot achieve the output of due monitoring signals if material is more than low Low Level, cause live urgent control
Thrashing processed, thus there may be serious production accidents, and explosion accident can even occur in certain industries.
Summary of the invention
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the application provides electromagnetic wave level switch
Transmitter and electromagnetic wave level switch, help to realize the self-test processing of transmitter emitted energy, and then help to promote electromagnetism
The reliability of wave level switch detection.
In order to achieve the above object, the application adopts the following technical scheme that
In a first aspect,
The application provides a kind of transmitter of electromagnetic wave level switch, comprising:
Transmitting module, for emitting electromagnetic wave；
Detection module, for detecting the emitted energy of the transmitting module, and output test result signal；
Processing module determines the transmitting mould according to the testing result signal for receiving the testing result signal
The actual transmission energy of block, judges whether the actual transmission energy meets preset condition, if conditions are not met, then being handled.
Further, the processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy of the transmitting module is determined according to the testing result signal；
Judge whether the actual transmission energy meets the preset condition；
If conditions are not met, the transmitting module adjustment emitted energy is controlled, so that after adjusted, the institute of the transmitting module
It states actual transmission energy and meets the preset condition.
Further, the transmitting module includes:
Oscillator, for generating pulse signal；
First amplifier, the pulse signal amplification for generating the oscillator, exports amplified pulse signal；
Antenna for receiving the amplified pulse signal of the first amplifier output, and is radiate, to form hair
Radio magnetic wave.
Further, the detection module includes:
Power splitter for receiving the amplified pulse signal of the first amplifier output, and is divided into two-way output,
In, the pulse signal transmission that the power splitter exports all the way gives the antenna, is gone out by the aerial radiation；
Frequency mixer；For receiving the pulse letter of the pulse signal that the oscillator generates and the power splitter another output
Number, and Frequency mixing processing is carried out, export difference frequency signal；
Filter for receiving the difference frequency signal of the frequency mixer output, and is filtered, after output filtering processing
Difference frequency signal；
Second amplifier, the difference frequency signal after filtering processing for receiving the filter output, and will filtering processing
Difference frequency signal amplification afterwards, exports amplified difference frequency signal, to form the testing result signal.
Further, the detection module further include:
Converter, for receiving the amplified difference frequency signal of second amplifier output, and by the difference frequency of amplification
Signal is AD converted, output difference frequency digital signal, to form the testing result signal.
Further, the processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge the actual transmission energy whether less than the first preset threshold energy；
If it is lower, obtaining the difference between the actual transmission energy and the first preset threshold energy, institute is determined
State whether difference is less than preset threshold difference；
If it is lower, the pulse signal that the oscillator generates is adjusted according to the difference, so that after adjusted, it is described
The actual transmission energy of transmitting module is not less than the first preset threshold energy.
Further, first amplifier is adjustable amplifier, and the adjustable amplifier has multiple adjustable shelves
Position, each gear is corresponding to adjust an energy grade；
The processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
According to default corresponding relationship, the corresponding actual energy grade of the actual transmission energy is determined；
Judge whether the actual energy grade is preset power level, if it is not, control the first amplifier tune
The whole gear, so that after adjusted, corresponding described actual energy of the actual transmission energy of the transmitting module etc.
Grade is the preset power level；
Wherein, the default corresponding relationship includes: multiple energy sections, and each energy section corresponds to described first
The energy grade that amplifier is adjustable.
Further, the detection processing module also particularly useful for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge the actual transmission energy whether less than the second preset threshold energy；
If it is lower, by the actual transmission energy, alternatively, by the actual transmission energy and second preset threshold
Difference between energy is sent to the receiver of electromagnetic wave level switch so that the receiver turns down activation threshold value, with institute
The actual transmission energy match of transmitter is stated, alternatively, so that the receiver is alarmed.
Further, the transmitter further include:
Alarm module；
The detection processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge whether the actual transmission energy is less than third predetermined threshold value energy；
If it is lower, controlling the alarm module carries out warning note.
Second aspect,
The application provides a kind of electromagnetic wave level switch, comprising:
Transmitter as described in any one of the above embodiments；And
Receiver.
The application use above technical scheme, at least have it is following the utility model has the advantages that
The application is helped to realize by the way that detection module and processing module are arranged in the transmitter of electromagnetic wave level switch
The self-test of transmitter emitted energy is handled, and then helps to be promoted the reliability of electromagnetic wave level switch detection.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the transmitter that the application one embodiment provides；
Fig. 2 is the structural representation for the transmitter that emitted energy function is adjusted with self-test that the application one embodiment provides
Figure；
Fig. 3 is that the structure for the transmitter that the self-test that the application one embodiment provides adjusts emitted energy by oscillator is shown
It is intended to；
Fig. 4 is the knot for the transmitter that the self-test that the application one embodiment provides adjusts emitted energy by adjustable amplifier
Structure schematic diagram；
Fig. 5 is for the self-test emitted energy that the application one embodiment provides to receiver transmission data after undesirable
The structural schematic diagram of transmitter；
Fig. 6 is the structural schematic diagram for the transmitter with warning function that the application one embodiment provides；
Fig. 7 is the structural schematic diagram for the electromagnetic wave level switch that the application one embodiment provides.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, the technical solution of the application will be carried out below
Detailed description.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the application is protected.
Fig. 1 is the structural schematic diagram for the transmitter that the application one embodiment provides；As shown in Figure 1, the electromagnetic wave material position
The transmitter 1 of switch includes:
Transmitting module 11, for emitting electromagnetic wave；
Detection module 12, for detecting the emitted energy of the transmitting module 11, and output test result signal；
Processing module 13 determines the transmitting according to the testing result signal for receiving the testing result signal
The actual transmission energy of module 11, judges whether the actual transmission energy meets preset condition, if conditions are not met, then being located
Reason.
In the related technology, the practical application scene of electromagnetic wave level switch is to be chronically at the working condition being monitored,
During the long term monitoring accumulated over a long period, electromagnetic wave level switch will be influenced by local environment, such as: temperature, humidity,
Dust, supplies consumption are to collision of electromagnetic wave level switch etc., it cannot be guaranteed that transmitter launch energy magnitude never becomes, electromagnetism
Aging occurs for wave level switch, and performance may be decreased, and the emitted energy of transmitter causes than presetting the weak of energy in empty
Received energy also weakens therewith when material.In this case, received energy is possible to become closer to energy when no material
Amount threshold value is even lower than energy threshold, once being lower than energy threshold, electromagnetic wave level switch will export the letter of material blocking
Number, cause to report by mistake.
In addition, electromagnetic wave level switch is chronically at material blocked state, receiver does not receive signal and long-term motionless
Make.Since receiver is failure to actuate for a long time, so being difficult to judge whether transmitter works normally.And for some special industries,
Electromagnetic wave level switch is frequently used for low Low Level alarm, once level, which breaks through warning height, will lead to serious accident, very
To causing casualties.In most of industrial processes, level is controlled in good situation, and electromagnetic wave level switch is long-term
In material blocked state, receiver does not receive signal and is failure to actuate for a long time.Since receiver is failure to actuate for a long time, so being difficult
Judge whether transmitter works normally.If there is failure, noenergy issues or energy is too low also will appear and connects transmitter
It receives device and does not receive signal.Currently, scheme in the related technology can not all identify transmitter whether failure.If transmitter is
It breaks down, but user can not have found, that is, the monitoring function failure of entire electromagnetic wave level switch, once material is more than
Low Low Level then cannot achieve due monitoring signals output, cause live emergency control system to fail, thus there may be serious
Production accident, even can occur explosion accident in certain industries.
By above-described embodiment scheme of the disclosure, then above-mentioned variety of problems can be solved, in the hair of electromagnetic wave level switch
In emitter 1, detection module 12 is set and processing module 13, detection module 12 detect the emitted energy of transmitting module 11,
Output test result signal, processor module obtain the actual transmission energy of transmitting module 11 according to the testing result signal, so
Judge whether actual transmission energy meets preset condition afterwards, if conditions are not met, then being handled, thus side through the foregoing embodiment
The self-test processing of the transmitter 1 of electromagnetic wave level switch may be implemented in case, and then helps to promote the detection of electromagnetic wave level switch
Reliability, guarantee electromagnetic wave level switch monitoring function it is effective.Under application scenes, such as opened using electromagnetic wave material position
Putting capable monitoring into includes safety monitoring, by disclosure above-described embodiment scheme, can further be increased in terms of safety
One is added to protect again.
Fig. 2 is the structural representation for the transmitter that emitted energy function is adjusted with self-test that the application one embodiment provides
Figure；As shown in Fig. 2, the processing module 13 is specifically used for:
Receive the testing result signal；
The actual transmission energy of the transmitting module 11 is determined according to the testing result signal；
Judge whether the actual transmission energy meets the preset condition；
If conditions are not met, controlling the transmitting module 11 adjusts emitted energy, so that after adjusted, the transmitting module 11
The actual transmission energy meet the preset condition.
Above-described embodiment scheme is chronically at the working condition being monitored in a particular application, in the length accumulated over a long period
In phase monitoring process, electromagnetic wave level switch will be influenced by local environment, such as: temperature, humidity, dust, supplies consumption
Collision etc. to electromagnetic wave level switch, it cannot be guaranteed that 1 launch energy magnitude of transmitter never becomes, electromagnetic wave level switch hair
Raw aging, performance may be decreased, and the emitted energy of transmitter 1 is unsatisfactory for preset condition, still, in the day of electromagnetic wave level switch
During the tired long term monitoring of the product moon, detection module 12, which is also formed, to carry out the emitted energy of transmitting module 11 to continue detection, because
And when the emitted energy of transmitter 1 is unsatisfactory for preset condition, it can also be detected, corresponding testing result signal is sent to place
Module 13 is managed, processing module 13, signal obtains the actual transmission energy of transmitting module 11 according to testing result, when actual transmission energy
When amount is unsatisfactory for preset condition, processing module 13 controls transmitting module 11 and adjusts emitted energy, so that emitted energy adjusted
Again meet preset condition, to guarantee that the stabilization of actual transmission energy is effective, and then guarantee that electromagnetic wave level switch monitors function
The stabilization of energy is effective.
Following disclosure give the specific embodiment of the transmitter 1 of electromagnetic wave level switch, to be described in detail.
Fig. 3 is that the structure for the transmitter that the self-test that the application one embodiment provides adjusts emitted energy by oscillator is shown
It is intended to；Fig. 4 is the structure for the transmitter that the self-test that the application one embodiment provides adjusts emitted energy by adjustable amplifier
Schematic diagram；
As shown in Figure 3 and Figure 4, the transmitting module 11 includes:
Oscillator 101, for generating pulse signal；
First amplifier 102, the pulse signal amplification for generating the oscillator 101, exports amplified pulse
Signal；
Antenna 103, the amplified pulse signal exported for receiving first amplifier 102, and radiate, with
Form transmitting electromagnetic wave.
Above-described embodiment scheme, in practical applications, oscillator 101 can use VCO oscillator 101, i.e. voltage controlled oscillation
Device 101 amplifies the pulse signal using amplifier to generate pulse signal, then passes through antenna 103 to space spoke
It penetrates, forms transmitting electromagnetic wave.
In practical applications, the transmitting module 11 can be used for emitting microwave, correspondingly, the electromagnetic wave level switch
For microwave level switch.
In practical applications, all parts in above-mentioned 11 example scheme of transmitting module, the disclosure is not to above-mentioned each
Component improves itself, and mature application in the related technology can be used in all parts.
As shown in Figure 3 and Figure 4, the detection module 12 includes:
Power splitter 104, the amplified pulse signal exported for receiving first amplifier 102, and it is divided into two-way
Output, wherein the pulse signal transmission that 104 1 tunnel of power splitter exports gives the antenna 103, passes through 103 spoke of antenna
It is shot out；
Frequency mixer 105；Pulse signal and 104 another way of the power splitter for receiving the generation of oscillator 101 is defeated
Pulse signal out, and Frequency mixing processing is carried out, export difference frequency signal；
Filter 106, the difference frequency signal exported for receiving the frequency mixer 105, and be filtered, output filtering
Treated difference frequency signal；
Second amplifier 107, the difference frequency signal after filtering processing for receiving the output of filter 106, and will filter
Wave treated difference frequency signal amplification, exports amplified difference frequency signal, to form the testing result signal.
In above-described embodiment scheme, by the Frequency mixing processing of frequency mixer 105, difference frequency signal is obtained, the difference frequency signal is new
The variation of energy magnitude will embody the variation of emitted energy, by filtering, after enhanced processing, obtained testing result signal
It can be sent to itself processing module 13 with AD conversion ability in practical applications for analog signal and be handled.
Further, as shown in Figure 3 and Figure 4, the detection module 12 further include:
Converter 108, the amplified difference frequency signal exported for receiving second amplifier 107, and will amplification
Difference frequency signal be AD converted, output difference frequency digital signal, to form the testing result signal.
Above-described embodiment scheme carries out analog-to-digital conversion, output difference frequency word to signal by independent converter 108
Signal is sent to processing module 13, and processing module 13 is just without being AD converted.
Similarly, in practical applications, all parts in above-mentioned 12 example scheme of detection module, the disclosure is not to upper
It states all parts itself to improve, mature application in the related technology can be used in all parts.
As shown in figure 3, the processing module 13 is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge the actual transmission energy whether less than the first preset threshold energy；
If it is lower, obtaining the difference between the actual transmission energy and the first preset threshold energy, institute is determined
State whether difference is less than preset threshold difference；
If it is lower, the pulse signal that the oscillator 101 generates is adjusted according to the difference, so that after adjusted,
The actual transmission energy of the transmitting module 11 is not less than the first preset threshold energy.
Above-described embodiment scheme, the pulse signal generated by the control adjustment of oscillator 101, realizes adjustment emitted energy,
In practical applications, for preset threshold difference, the difference between actual transmission energy and the first preset threshold energy is greater than etc.
When preset threshold difference, it is excessive to show that 11 energy of transmitting module reduces, it is believed that transmitting module 11 breaks down, thus, it is real
When difference between border emitted energy and the first preset threshold energy is less than preset threshold difference, illustrate that transmitting module 11 can be into
Row adjustment emitted energy.
As shown in figure 4, first amplifier 102 is adjustable amplifier, the adjustable amplifier has multiple adjustable
Gear, each gear is corresponding to adjust an energy grade；
The processing module 13 is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
According to default corresponding relationship, the corresponding actual energy grade of the actual transmission energy is determined；
Judge whether the actual energy grade is preset power level, if it is not, control first amplifier 102
The gear is adjusted, so that after adjusted, the corresponding practical energy of the actual transmission energy of the transmitting module 11
Amount grade is the preset power level；
Wherein, the default corresponding relationship includes: multiple energy sections, and each energy section corresponds to described first
The energy grade that amplifier 102 is adjustable.
In practical applications, adjustable amplifier has multiple regulation stalls, each gear corresponding one to above-described embodiment scheme
A amplification factor, thus each gear one energy grade of corresponding adjusting, for example, adjustable amplifier uses APA adjustable amplifier.
In practical applications, first determine that a suitable gear for using adjustable amplifier, the emitted energy detected are corresponding with the gear
Energy grade it is corresponding, when the actual energy grade detected be lower than preset power level when, processing module 13 controls adjustable
Amplification factor is turned up automatically for amplifier, adjusts to a upper energy grade.It is preset when the actual energy grade detected is higher than
When energy grade, processing module 13 controls adjustable amplifier and automatically turns down amplification factor, adjusts and arrives next energy grade.This
Sample can guarantee that emitted energy is in the energy range of measurement request.For example, in long-term use process of accumulating over a long period, because each
The influence of kind situation, e.g., the influence of ambient conditions causes under the gear originally set, the emitted energy drop of transmitting module 11
It is low, it is in next energy grade, undesirable, processing module 13 controls adjustable amplifier and amplification factor is turned up automatically, adjusts
Save an energy grade.
It is found that the self-test of above-mentioned related embodiment scheme is handled, what is involved is 13 self-test emitted energies of processing module not to be inconsistent
It closes after requiring, control transmitting module 11 adjusts the processing of emitted energy, as promotion electromagnetic wave level switch detection reliability, protects
Demonstrate,prove one of effective break through direction of electromagnetic wave level switch monitoring function.
It promotes electromagnetic wave level switch detection reliability in addition, the disclosure gives, guarantee the monitoring of electromagnetic wave level switch
Other effective different schemes of function, specific as follows:
Fig. 5 is for the self-test emitted energy that the application one embodiment provides to receiver transmission data after undesirable
The structural schematic diagram of transmitter；As shown in figure 5, the detection processing module 13 also particularly useful for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge the actual transmission energy whether less than the second preset threshold energy；
If it is lower, by the actual transmission energy, alternatively, by the actual transmission energy and second preset threshold
Difference between energy is sent to the receiver 2 of electromagnetic wave level switch so that the receiver 2 turns down activation threshold value, with
The actual transmission energy match of the transmitter 1, alternatively, so that the receiver 2 is alarmed.
Above-described embodiment scheme, 1 self-test of transmitter measure emitted energy it is undesirable when, processing method is, will not
Actual transmission energy when meeting the requirements, alternatively, the difference between actual transmission energy and the second preset threshold energy is sent
It to receiver 2, is handled by receiver 2, a kind of processing of receiver 2 is, according to actual transmission energy, alternatively, by practical
Difference between emitted energy and the second preset threshold energy determines the activation threshold value for turning down itself, the institute with the transmitter 1
Actual transmission energy match is stated, such processing needs are under the premise of the monitoring function for still ensuring that electromagnetic wave level switch is effective
It carries out；Another kind processing is, according to actual transmission energy, alternatively, by between actual transmission energy and the second preset threshold energy
Difference, carry out warning note, show that the monitoring function of electromagnetic wave level switch is no longer valid in the case of this.
In practical applications, transmitter 1 sends data to receiver 2, can be the place of both transmitter 1 and receiver 2
Reason device is connected by signal wire realizes that data transmission is sent, and is also possible to each self-configuring wireless communication module of the two, realizes data
Transmission transmission, etc..
Above-described embodiment scheme, which can be used as, to be promoted electromagnetic wave level switch detection reliability, guarantees electromagnetic wave level switch
The two of the effective break through direction of monitoring function.
Fig. 6 is the structural schematic diagram for the transmitter with warning function that the application one embodiment provides；Such as Fig. 6 institute
Show, the transmitter 1 further include:
Alarm module 14；
The detection processing module 13 is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge whether the actual transmission energy is less than third predetermined threshold value energy；
If it is lower, controlling the alarm module 14 carries out warning note.
Above-described embodiment scheme, 1 self-test of transmitter measure emitted energy it is undesirable when, processing method is to pass through
The alarm module 14 of itself configuration is alarmed, and in the program, third predetermined threshold value energy can be used as the appearance of transmitting module 11
The alarm threshold value of failure shows that the transmitting module 11 of transmitter 1 goes out when actual transmission energy is less than third predetermined threshold value energy
Existing failure, shows that the monitoring function of electromagnetic wave level switch is no longer valid in the case of this.
Above-described embodiment scheme, which can be used as, to be promoted electromagnetic wave level switch detection reliability, guarantees electromagnetic wave level switch
The three of the effective break through direction of monitoring function.
Fig. 7 is the structural schematic diagram for the electromagnetic wave level switch that the application one embodiment provides, as shown in fig. 7, the electricity
Magnetic wave level switch 1001 includes:
Transmitter 1 as described in any one of the above embodiments；And
Receiver 2.
About the electromagnetic wave level switch 1001 in above-described embodiment, the concrete mode of transmitter 1 and receiver 2 is
It is described in detail in the above-mentioned embodiment in relation to this method, no detailed explanation will be given here.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, " multiple ", " mores' "
Meaning refers at least two.
Any process described otherwise above or method description in flow chart or herein it is understood that are as follows: expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
In addition, can integrate in a processing module 13 in each functional unit in each embodiment of the application, it can also
To be that each unit physically exists alone, can also be integrated in two or more units in a module.It is above-mentioned integrated
Module both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module
If in the form of software function module realize and when sold or used as an independent product, also can store one calculating
In machine read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of transmitter of electromagnetic wave level switch characterized by comprising
Transmitting module, for emitting electromagnetic wave；
Detection module, for detecting the emitted energy of the transmitting module, and output test result signal；
Processing module determines the transmitting module according to the testing result signal for receiving the testing result signal
Actual transmission energy, judges whether the actual transmission energy meets preset condition, if conditions are not met, then being handled.
2. transmitter according to claim 1, which is characterized in that the processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy of the transmitting module is determined according to the testing result signal；
Judge whether the actual transmission energy meets the preset condition；
If conditions are not met, the transmitting module adjustment emitted energy is controlled, so that after adjusted, the reality of the transmitting module
Border emitted energy meets the preset condition.
3. transmitter according to claim 2, which is characterized in that the transmitting module includes:
Oscillator, for generating pulse signal；
First amplifier, the pulse signal amplification for generating the oscillator, exports amplified pulse signal；
Antenna for receiving the amplified pulse signal of the first amplifier output, and is radiate, to form transmitting electricity
Magnetic wave.
4. transmitter according to claim 3, which is characterized in that the detection module includes:
Power splitter for receiving the amplified pulse signal of the first amplifier output, and is divided into two-way output, wherein
The pulse signal transmission that the power splitter exports all the way gives the antenna, is gone out by the aerial radiation；
Frequency mixer；For receiving the pulse signal of the pulse signal that the oscillator generates and the power splitter another output,
And Frequency mixing processing is carried out, export difference frequency signal；
Filter for receiving the difference frequency signal of the frequency mixer output, and is filtered, the difference after output filtering processing
Frequency signal；
Second amplifier, the difference frequency signal after filtering processing for receiving the filter output, and will be after filtering processing
Difference frequency signal amplification, exports amplified difference frequency signal, to form the testing result signal.
5. transmitter according to claim 4, which is characterized in that the detection module further include:
Converter, for receiving the amplified difference frequency signal of second amplifier output, and by the difference frequency signal of amplification
It is AD converted, output difference frequency digital signal, to form the testing result signal.
6. according to the described in any item transmitters of claim 3-5, which is characterized in that the processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge the actual transmission energy whether less than the first preset threshold energy；
If it is lower, obtaining the difference between the actual transmission energy and the first preset threshold energy, the difference is determined
Whether value is less than preset threshold difference；
If it is lower, the pulse signal that the oscillator generates is adjusted according to the difference, so that after adjusted, the transmitting
The actual transmission energy of module is not less than the first preset threshold energy.
7. according to the described in any item transmitters of claim 3-5, which is characterized in that
First amplifier is adjustable amplifier, and the adjustable amplifier has multiple adjustable gears, each shelves
Position is corresponding to adjust an energy grade；
The processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
According to default corresponding relationship, the corresponding actual energy grade of the actual transmission energy is determined；
Judge whether the actual energy grade is preset power level, if it is not, control first amplifier adjusts institute
Gear is stated, so that after adjusted, the corresponding actual energy grade of the actual transmission energy of the transmitting module is
The preset power level；
Wherein, the default corresponding relationship includes: multiple energy sections, and each energy section corresponds to first amplification
The energy grade that device is adjustable.
8. transmitter according to claim 1, which is characterized in that the detection processing module also particularly useful for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge the actual transmission energy whether less than the second preset threshold energy；
If it is lower, by the actual transmission energy, alternatively, by the actual transmission energy and the second preset threshold energy
Between difference, be sent to the receiver of electromagnetic wave level switch so that the receiver turns down activation threshold value, with the hair
The actual transmission energy match of emitter, alternatively, so that the receiver is alarmed.
9. transmitter according to claim 1, which is characterized in that the transmitter further include:
Alarm module；
The detection processing module is specifically used for:
Receive the testing result signal；
The actual transmission energy is determined according to the testing result signal；
Judge whether the actual transmission energy is less than third predetermined threshold value energy；
If it is lower, controlling the alarm module carries out warning note.
10. a kind of electromagnetic wave level switch characterized by comprising
Such as the described in any item transmitters of claim 1-9；And
Receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156758.7A CN109724672B (en) | 2019-03-01 | 2019-03-01 | Transmitter of electromagnetic wave material level switch and electromagnetic wave material level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156758.7A CN109724672B (en) | 2019-03-01 | 2019-03-01 | Transmitter of electromagnetic wave material level switch and electromagnetic wave material level switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109724672A true CN109724672A (en) | 2019-05-07 |
| CN109724672B CN109724672B (en) | 2021-02-02 |
Family
ID=66300154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910156758.7A Active CN109724672B (en) | 2019-03-01 | 2019-03-01 | Transmitter of electromagnetic wave material level switch and electromagnetic wave material level switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109724672B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363030A (en) * | 2020-10-30 | 2021-02-12 | 上海均赫检测技术有限公司 | Low-voltage bus duct insulation detection method in running state |
| CN113280874A (en) * | 2021-06-17 | 2021-08-20 | 孚洛泰(重庆)科技有限公司 | Self-checking flowmeter and self-checking method thereof |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901077A (en) * | 1974-05-04 | 1975-08-26 | Nat Res Dev | Ultrasonic flowmeter |
| DE2611729A1 (en) * | 1975-03-19 | 1976-10-07 | Cornelius Leonard Gooley | METHOD AND DEVICE FOR MEASURING FLUID MEDIA |
| EP0494398A2 (en) * | 1991-01-09 | 1992-07-15 | Bindicator Company | Material level indicating apparatus with status light and external test features |
| CA2323558A1 (en) * | 1999-01-21 | 2000-07-27 | Rosemount Inc. | Multiple process product interface detection for a low power radar level transmitter |
| WO2004048905A1 (en) * | 2002-11-22 | 2004-06-10 | Saab Marine Electronics Ab | Isolation circuit |
| US20070188374A1 (en) * | 2005-11-30 | 2007-08-16 | Josef Fehrenbach | Filling level radar with variable transmitting power |
| CN103957006A (en) * | 2014-04-15 | 2014-07-30 | 西安天伟电子系统工程有限公司 | S wave band low-phase noise frequency comprehensive generator |
| CN104132713A (en) * | 2014-05-22 | 2014-11-05 | 深圳万讯自控股份有限公司 | Method and device for processing echo signals of guided wave radar liquid level meter |
| CN104568060A (en) * | 2014-12-31 | 2015-04-29 | 重庆川仪自动化股份有限公司 | Pulsing radar level meter, adjusting method of local vibration power of pulsing radar level meter, and controller |
| CN105865567A (en) * | 2016-03-28 | 2016-08-17 | 安徽工程大学 | Water level detection system and control method thereof |
| CN106840310A (en) * | 2017-02-17 | 2017-06-13 | 水利部南京水利水文自动化研究所 | A kind of CW/FM continuous wave/frequency modulated modulated indicator water gage measuring method |
| CN107677339A (en) * | 2016-08-01 | 2018-02-09 | Vega格里沙贝两合公司 | Radar apparatus for measuring charge level |
| CN108344998A (en) * | 2018-04-26 | 2018-07-31 | 吉林大学 | Vehicle-mounted multi-view mapping is away from speed measuring device and method |
| CN108458770A (en) * | 2017-02-09 | 2018-08-28 | 克洛纳测量技术有限公司 | The fill level switch and method of boundary level for determining the medium in container |
| CN109297564A (en) * | 2017-07-25 | 2019-02-01 | Vega格里沙贝两合公司 | The operating method of radar apparatus for measuring charge level and radar apparatus for measuring charge level |
-
2019
- 2019-03-01 CN CN201910156758.7A patent/CN109724672B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901077A (en) * | 1974-05-04 | 1975-08-26 | Nat Res Dev | Ultrasonic flowmeter |
| DE2611729A1 (en) * | 1975-03-19 | 1976-10-07 | Cornelius Leonard Gooley | METHOD AND DEVICE FOR MEASURING FLUID MEDIA |
| EP0494398A2 (en) * | 1991-01-09 | 1992-07-15 | Bindicator Company | Material level indicating apparatus with status light and external test features |
| CA2323558A1 (en) * | 1999-01-21 | 2000-07-27 | Rosemount Inc. | Multiple process product interface detection for a low power radar level transmitter |
| WO2004048905A1 (en) * | 2002-11-22 | 2004-06-10 | Saab Marine Electronics Ab | Isolation circuit |
| US20070188374A1 (en) * | 2005-11-30 | 2007-08-16 | Josef Fehrenbach | Filling level radar with variable transmitting power |
| CN103957006A (en) * | 2014-04-15 | 2014-07-30 | 西安天伟电子系统工程有限公司 | S wave band low-phase noise frequency comprehensive generator |
| CN104132713A (en) * | 2014-05-22 | 2014-11-05 | 深圳万讯自控股份有限公司 | Method and device for processing echo signals of guided wave radar liquid level meter |
| CN104568060A (en) * | 2014-12-31 | 2015-04-29 | 重庆川仪自动化股份有限公司 | Pulsing radar level meter, adjusting method of local vibration power of pulsing radar level meter, and controller |
| CN105865567A (en) * | 2016-03-28 | 2016-08-17 | 安徽工程大学 | Water level detection system and control method thereof |
| CN107677339A (en) * | 2016-08-01 | 2018-02-09 | Vega格里沙贝两合公司 | Radar apparatus for measuring charge level |
| CN108458770A (en) * | 2017-02-09 | 2018-08-28 | 克洛纳测量技术有限公司 | The fill level switch and method of boundary level for determining the medium in container |
| CN106840310A (en) * | 2017-02-17 | 2017-06-13 | 水利部南京水利水文自动化研究所 | A kind of CW/FM continuous wave/frequency modulated modulated indicator water gage measuring method |
| CN109297564A (en) * | 2017-07-25 | 2019-02-01 | Vega格里沙贝两合公司 | The operating method of radar apparatus for measuring charge level and radar apparatus for measuring charge level |
| CN108344998A (en) * | 2018-04-26 | 2018-07-31 | 吉林大学 | Vehicle-mounted multi-view mapping is away from speed measuring device and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363030A (en) * | 2020-10-30 | 2021-02-12 | 上海均赫检测技术有限公司 | Low-voltage bus duct insulation detection method in running state |
| CN113280874A (en) * | 2021-06-17 | 2021-08-20 | 孚洛泰(重庆)科技有限公司 | Self-checking flowmeter and self-checking method thereof |
| CN113280874B (en) * | 2021-06-17 | 2022-06-14 | 孚洛泰(重庆)科技有限公司 | Self-checking flowmeter and self-checking method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109724672B (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10473753B2 (en) | Fill level measurement device comprising interfering signal detection | |
| US7036390B2 (en) | Method for detecting human body in a vehicle | |
| US5315302A (en) | Radar detector | |
| EP0201149A2 (en) | Condition monitoring system (tyre pressure) | |
| CN109724672A (en) | The transmitter and electromagnetic wave level switch of electromagnetic wave level switch | |
| EP3641135B1 (en) | Frequency drift detector, communication unit and method therefor | |
| KR20150127054A (en) | Fmcw radar level gauge with lock state control | |
| US20150330825A1 (en) | Pulsed level gauge system and method | |
| SE452578B (en) | SCRAPING SYSTEM TO REMOVE DECK AIR PRESSURE | |
| US20090243915A1 (en) | Microwave sensor apparatus and microwave sensor system | |
| JPS61226672A (en) | Method and device for monitoring station of landing assisting system of mls type | |
| US20200288361A1 (en) | Wireless communication system, wireless terminal, and wirelesscommunication metho | |
| WO2017086916A1 (en) | Child vehicle seat occupancy sensor | |
| CA1102440A (en) | Circuit arrangement for ultrasonic burglar security systems operating in accordance with the doppler principle | |
| US3475686A (en) | Method and apparatus for selection of antenna providing acceptable signal | |
| US8731492B2 (en) | System for monitoring and controlling the power of a radio frequency (RF) signal in a short-range RF transmitter | |
| US3564493A (en) | Acoustic energy detection system | |
| EP3472639B1 (en) | Ultra-wideband radar with normalized sensitivity | |
| JP5509971B2 (en) | Navigation support device for aircraft, navigation support method, and navigation support program | |
| US7948365B2 (en) | Tire air pressure monitoring system | |
| US9905065B2 (en) | Radio controls for electric devices and methods for transmitting commands through radio controls | |
| US11731468B2 (en) | Radio-transmitting sensor for a vehicle wheel, comprising a dual-mode antenna circuit | |
| TWI509257B (en) | Wideband frequency detector | |
| US10679492B2 (en) | Motion sensor with antimask protection | |
| EP1880873A2 (en) | Tire information detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |