CN117825744A - Multifunctional alarming ultrasonic instrument and control method thereof - Google Patents
Multifunctional alarming ultrasonic instrument and control method thereof Download PDFInfo
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- CN117825744A CN117825744A CN202311866759.3A CN202311866759A CN117825744A CN 117825744 A CN117825744 A CN 117825744A CN 202311866759 A CN202311866759 A CN 202311866759A CN 117825744 A CN117825744 A CN 117825744A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000002159 abnormal effect Effects 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims description 109
- 239000011148 porous material Substances 0.000 claims description 83
- 230000005540 biological transmission Effects 0.000 claims description 79
- 230000000149 penetrating effect Effects 0.000 claims description 50
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000012423 maintenance Methods 0.000 description 10
- 238000005259 measurement Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
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- 230000002441 reversible effect Effects 0.000 description 2
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- 238000013461 design Methods 0.000 description 1
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Abstract
The invention discloses a multifunctional alarming ultrasonic instrument and a control method thereof, relating to the application field of ultrasonic instruments, wherein the ultrasonic instrument comprises: a first ultrasonic transducer for transmitting a first ultrasonic signal into the interior of the meter body; the device comprises a meter body, a first ultrasonic transducer, a second ultrasonic transducer, a controller and a controller, wherein the meter body is provided with a first reflecting signal, a second transmitting signal and a first alarming signal; and the alarm unit is used for carrying out alarm prompt according to the alarm signal. The invention can reduce error data and identify the abnormal conditions of no water in the pipeline and self damage of the instrument in the running process.
Description
Technical Field
The invention relates to the field of ultrasonic instrument application, in particular to a multifunctional alarming ultrasonic instrument and a control method thereof.
Background
As is well known, the principle of an ultrasonic instrument is that one ultrasonic transducer in a group emits ultrasonic waves into a liquid, the velocity of the sound waves is superimposed on the information of the flow velocity of the liquid, the ultrasonic waves are received by the other ultrasonic transducer in the group, and an electronic component recognizes the information of the change of the decomposed sound velocity to calculate the flow velocity of the liquid.
The ultrasonic instrument is used in practical application for some common water circulation systems such as a heating system, an irrigation system and a water supplementing system, and is mainly used for a system which is free of water for a long time or operates by mixing air and water during starting. The electronic instrument based on the ultrasonic principle is sensitive to the gas mixed in the liquid, if the flow velocity of the liquid to be measured is calculated according to the sound velocity of the penetrating gas-water mixture, the result deviation is very large, the common solution is to set a sound velocity interval, and when the calculated flow velocity exceeds the flow interval, the data are removed from the measurement. However, an excellent ultrasonic instrument usually has a metering range of 1000:1, and sometimes abnormal data after mixed gas does not exceed a set threshold value; for example, when the pipeline runs at a flow rate of 0.01m/s, the flow rate calculated by the ultrasonic running time change caused by gas interference is 10m/s, and the erroneous flow rate is not beyond a set interval and cannot be removed, but is fatal to the overall meter metering accuracy.
In addition, in some severe meter use conditions, an abnormal condition that the meter body cavity of the ultrasonic meter is blocked is unavoidable. As an electronic instrument, the ultrasonic wave can judge the abnormality by whether the paired ultrasonic transducers can accept the ultrasonic signal; however, even if the pipeline is not water and the ultrasonic transducer itself is damaged, the phenomenon that the ultrasonic signal is not received is generated, and misleading is caused to the fault judgment and maintenance method during the maintenance of the instrument.
Disclosure of Invention
The invention aims to provide a multifunctional alarming ultrasonic instrument and a control method thereof, which can reduce error data and identify abnormal conditions of no water in a pipeline and self damage of the instrument in the running process.
In order to achieve the above object, the present invention provides the following solutions:
an ultrasonic meter with a multifunctional alarm, comprising: the meter body, the first ultrasonic transducer, the second ultrasonic transducer, the first reflecting pore plate, the controller and the alarm unit;
the meter body is used for containing liquid to be measured; the first reflecting pore plate is arranged in the meter body and is positioned on a transmission path between the first ultrasonic transducer and the second ultrasonic transducer; the first reflecting pore plate is a reflecting plate provided with a first penetrating hole; the controller is respectively connected with the first ultrasonic transducer, the second ultrasonic transducer and the alarm unit;
The first ultrasonic transducer is used for transmitting a first ultrasonic signal into the meter body; the second ultrasonic transducer is used for transmitting a second ultrasonic signal into the meter body;
the controller is used for:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a second transmitted signal and whether the second ultrasonic transducer receives a first transmitted signal; the first reflection signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the first reflection pore plate; the first transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate; the second transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate;
when the first ultrasonic transducer receives a first reflection signal and a second transmission signal and the second ultrasonic transducer receives the first transmission signal, determining reflection time, emission time and inverse emission time, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, and determining the flow rate of the liquid to be detected according to the emission time and the inverse emission time when the abnormal gas does not exist in the liquid to be detected; the reflection time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and receiving the first reflection signal, the transmission time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and the second ultrasonic transducer receiving the first transmission signal, and the inverse transmission time is a time interval of the second ultrasonic transducer transmitting a second ultrasonic signal and the first ultrasonic transducer receiving the second transmission signal;
When the first ultrasonic transducer does not receive the first reflected signal and the second transmitted signal and the second ultrasonic transducer does not receive the first transmitted signal, determining that the liquid to be measured is not contained in the meter body, and generating a first alarm signal;
when the first ultrasonic transducer receives a first reflected signal, does not receive a second transmitted signal and does not receive the first transmitted signal, determining whether the first ultrasonic transducer and the second ultrasonic transducer have faults according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not, and generating a second alarm signal when the first ultrasonic transducer and/or the second ultrasonic transducer have faults;
the alarm unit is used for carrying out alarm prompt according to the first alarm signal and the second alarm signal.
Optionally, the ultrasonic meter further comprises: a second reflective aperture plate; the second reflecting pore plate is arranged in the meter body, is positioned on a transmission path between the first ultrasonic transducer and the second ultrasonic transducer, and is arranged between the first reflecting pore plate and the second ultrasonic transducer; the second reflecting pore plate is a reflecting plate provided with a second penetrating hole;
The controller is further configured to:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a fourth transmitted signal, whether the second ultrasonic transducer receives a second reflected signal and whether the second ultrasonic transducer receives a third transmitted signal; the second reflection signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the second reflection pore plate; the third transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained by sequentially penetrating through a first penetrating hole on the first reflecting pore plate and penetrating through a second penetrating hole on the second reflecting pore plate; the fourth transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the second transmission signal is an ultrasonic signal which is sequentially transmitted by a second penetrating hole on the second reflecting pore plate and a first penetrating hole on the first reflecting pore plate;
when the first ultrasonic transducer receives a first reflected signal and does not receive a fourth transmitted signal, and the second ultrasonic transducer receives a second reflected signal and does not receive a third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
When the first ultrasonic transducer receives a first reflected signal and a fourth transmitted signal and the second ultrasonic transducer does not receive a second reflected signal and a third transmitted signal, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer receives the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer has a fault and the second ultrasonic transducer is normal;
and when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer does not receive the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
Optionally, in judging whether an abnormal gas exists in the liquid to be measured according to the reflection time, the controller is specifically configured to:
judging whether abnormal gas exists in the liquid to be detected according to the reflection time;
when the reflection time is longer than a preset time, determining that abnormal gas exists in the liquid to be detected;
And when the reflection time is less than or equal to the preset time, determining that no abnormal gas exists in the liquid to be detected.
Optionally, in determining whether there is a failure of the first ultrasonic transducer and the second ultrasonic transducer according to whether the first ultrasonic transducer and the second ultrasonic transducer resonate, the controller is specifically configured to:
when the first ultrasonic transducer and the second ultrasonic transducer are resonant, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
when the first ultrasonic transducer resonates and the second ultrasonic transducer does not resonate, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
when the first ultrasonic transducer does not resonate, and the second ultrasonic transducer resonates, determining that the first ultrasonic transducer has a fault, and the second ultrasonic transducer is normal;
and when the first ultrasonic transducer and the second ultrasonic transducer are not in resonance, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
Optionally, the alarm unit is a liquid crystal display.
Optionally, the reflecting plate is a reflecting mirror.
In order to achieve the above purpose, the present invention also provides the following solutions:
an ultrasonic instrument control method of multifunctional alarm, the control method is applied to the ultrasonic instrument of multifunctional alarm, the control method comprises:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a second transmitted signal and whether the second ultrasonic transducer receives the first transmitted signal; the first reflection signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the first reflection pore plate; the first transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate; the second transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate;
when the first ultrasonic transducer receives a first reflection signal and a second transmission signal and the second ultrasonic transducer receives the first transmission signal, determining reflection time, emission time and inverse emission time, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, and determining the flow rate of the liquid to be detected according to the emission time and the inverse emission time when the abnormal gas does not exist in the liquid to be detected; the reflection time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and receiving the first reflection signal, the transmission time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and the second ultrasonic transducer receiving the first transmission signal, and the inverse transmission time is a time interval of the second ultrasonic transducer transmitting a second ultrasonic signal and the first ultrasonic transducer receiving the second transmission signal;
When the first ultrasonic transducer does not receive the first reflected signal and the second transmitted signal and the second ultrasonic transducer does not receive the first transmitted signal, determining that the liquid to be measured is not contained in the meter body;
when the first ultrasonic transducer receives the first reflected signal, the second transmitted signal is not received, and the second ultrasonic transducer does not receive the first transmitted signal, whether the first ultrasonic transducer and the second ultrasonic transducer have faults or not is determined according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not.
Optionally, the control method further includes:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a fourth transmitted signal, whether the second ultrasonic transducer receives a second reflected signal and whether the second ultrasonic transducer receives a third transmitted signal; the second reflection signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the second reflection pore plate; the third transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained by sequentially penetrating through a first penetrating hole on the first reflecting pore plate and penetrating through a second penetrating hole on the second reflecting pore plate; the fourth transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the second transmission signal is an ultrasonic signal which is sequentially transmitted by a second penetrating hole on the second reflecting pore plate and a first penetrating hole on the first reflecting pore plate;
When the first ultrasonic transducer receives a first reflected signal and does not receive a fourth transmitted signal, and the second ultrasonic transducer receives a second reflected signal and does not receive a third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
when the first ultrasonic transducer receives a first reflected signal and a fourth transmitted signal and the second ultrasonic transducer does not receive a second reflected signal and a third transmitted signal, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer receives the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer has a fault and the second ultrasonic transducer is normal;
and when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer does not receive the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, whether the first ultrasonic transducer receives a first reflection signal, whether the first ultrasonic transducer receives a second ultrasonic signal and whether the second ultrasonic transducer receives the first ultrasonic signal are judged by the controller, the reflection time, the emission time and the inverse emission time are determined, whether abnormal gas exists in liquid to be tested of a meter body of the ultrasonic instrument or not is determined according to the reflection time, when no abnormal gas exists in the liquid to be tested, the flow rate of the liquid to be tested is determined according to the emission time and the inverse emission time, and the flow rate of the liquid to be tested when the abnormal gas exists is not calculated, so that error data acquisition is reduced, and the purpose of eliminating the error data is realized.
Meanwhile, according to the signal receiving results of the first ultrasonic transducer and the second ultrasonic transducer, the invention realizes the determination of whether the liquid to be detected exists in the ultrasonic instrument body or not, and the determination of whether the first ultrasonic transducer and the second ultrasonic transducer have faults or not according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not, thereby saving the checking time of the ultrasonic instrument and improving the maintenance efficiency of the ultrasonic instrument.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an ultrasonic instrument with a multifunctional alarm according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an ultrasonic instrument with a multifunctional alarm with two reflective aperture plates according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an ultrasonic instrument with a multifunctional alarm according to an embodiment of the present invention.
Symbol description:
a meter body-1, a first ultrasonic transducer-2, a second ultrasonic transducer-3, a first reflecting pore plate-4, a reflecting mirror-5 and a second reflecting pore plate-6.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a multifunctional alarming ultrasonic instrument and a control method thereof, which can reduce error data by judging the signal receiving result of an ultrasonic transducer and identify the abnormal conditions of no water in a pipeline and self damage of the instrument in the running process.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Referring to FIG. 1, the black line is labeled as the channel travel L, the transducer center-to-center distance is x, the sound velocity is c, the water flow velocity is v, and the counter-water travel time is t 1 The forward water propagation time is t 2 。
According to the above formula:
it can be seen that to calculate the flow velocity v, the round trip time t is required 1 、t 2 And the speed of sound c, but t is acquired 1 ，t 2 There may be errors. To confirm t in the current calculation 1 ，t 2 If there is error, adding a self-reflection powerIf the self-reflection stroke is a and the self-reflection time is t, c=a/t.
C is known to have a value in the range 1402-1555m/s at a temperature of 0℃to 80℃byC can be calculated with c=a/t, both being consistent and within the above-mentioned number range, then the measured t/t is considered to be 1 /t 2 Is correct and can be used to calculate the water flow velocity v.
As shown in fig. 1, based on the above water flow velocity v calculation principle, the present invention discloses a multifunctional alarm ultrasonic instrument, comprising: the meter body 1, the first ultrasonic transducer 2, the second ultrasonic transducer 3, the first reflecting pore plate 4, the controller and the alarm unit.
The meter body 1 is used for containing liquid to be measured; the first reflecting pore plate 4 is arranged inside the meter body 1 and is positioned on a transmission line between the first ultrasonic transducer 2 and the second ultrasonic transducer 3; the first reflecting pore plate 4 is a reflecting plate provided with a first penetrating hole; the controller is respectively connected with the first ultrasonic transducer 2, the second ultrasonic transducer 3 and the alarm unit.
The first ultrasonic transducer 2 is used for transmitting a first ultrasonic signal into the meter body 1; the second ultrasonic transducer 3 is configured to transmit a second ultrasonic signal into the meter body.
Specifically, when the meter body 1 contains liquid to be measured, ultrasonic signals are transmitted between the first ultrasonic transducer 2 and the second ultrasonic transducer 3 through the liquid to be measured; if the meter body 1 is empty and does not contain the liquid to be measured, the ultrasonic signal cannot be transmitted on the transmission line between the first ultrasonic transducer 2 and the second ultrasonic transducer 3.
The controller is used for:
it is determined whether the first ultrasonic transducer 2 receives the first reflected signal, whether the first ultrasonic transducer 2 receives the second transmitted signal, and whether the second ultrasonic transducer 3 receives the first transmitted signal.
The first reflection signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the first reflection pore plate 4; the first transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate 4; the second transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate.
When the first ultrasonic transducer 2 receives the first reflected signal and the second transmitted signal and the second ultrasonic transducer 3 receives the first transmitted signal, determining a reflection time, an emission time and a reverse emission time, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, and determining the flow rate of the liquid to be detected according to the emission time and the reverse emission time when the abnormal gas does not exist in the liquid to be detected.
The reflection time is a time interval between when the first ultrasonic transducer 2 transmits a first ultrasonic signal and receives the first reflection signal, the transmission time is a time interval between when the first ultrasonic transducer 2 transmits a first ultrasonic signal and when the second ultrasonic transducer 3 receives the first transmission signal, and the inverse transmission time is a time interval between when the second ultrasonic transducer 3 transmits a second ultrasonic signal and when the first ultrasonic transducer 2 receives the second transmission signal.
When the first ultrasonic transducer 2 does not receive the first reflected signal and the second transmitted signal and the second ultrasonic transducer 3 does not receive the first transmitted signal, it is determined that the liquid to be measured is not contained in the meter body 1, and a first alarm signal is generated.
When the first ultrasonic transducer 2 receives the first reflected signal, the second transmitted signal is not received, and the second ultrasonic transducer 3 does not receive the first transmitted signal, whether the first ultrasonic transducer 2 and the second ultrasonic transducer 3 have faults or not is determined according to whether the first ultrasonic transducer 2 and the second ultrasonic transducer 3 generate resonance or not, and when the first ultrasonic transducer 2 and/or the second ultrasonic transducer 3 have faults, a second alarm signal is generated.
The alarm unit is used for carrying out alarm prompt according to the first alarm signal and the second alarm signal.
Optionally, the reflecting pore plate comprises a plane or a curved surface, at least one reflecting pore plate is used for reflecting the ultrasonic waves of the single ultrasonic transducer, and the reflecting pore plate is arranged in front of the transmitting plane of the ultrasonic transducer and is used for reflecting the ultrasonic waves to realize the spontaneous self-receiving of the ultrasonic signals of the ultrasonic transducer.
Optionally, the alarm unit is a liquid crystal display. After the controller judges that the process is finished, if a first alarm signal is generated, the liquid crystal display displays alarm information of 'the gauge body is an empty pipe' according to the first alarm signal; and if the second alarm signal is generated, the liquid crystal display displays alarm information of 'failure of the ultrasonic transducer' according to the second alarm signal.
Still further, the second alarm signal includes three conditions: the first ultrasonic transducer 2 and the second ultrasonic transducer 3 have faults, only the first ultrasonic transducer 2 has faults and only the second ultrasonic transducer 3 has faults, and the liquid crystal display correspondingly displays alarm information of 'the first ultrasonic transducer has faults and the second ultrasonic transducer has faults', 'the first ultrasonic transducer has faults and the second ultrasonic transducer has normal', or 'the first ultrasonic transducer has normal and the second ultrasonic transducer has faults', respectively, according to different information contained in the second alarm signal.
Referring to fig. 2, a reflecting pore plate is also added at the second ultrasonic transducer 4, after the ultrasonic wave emitted by the second ultrasonic transducer 4 is emitted, the ultrasonic wave reflected by the reflecting pore plate can be received, and the time interval between the emission and the receiving acquired by the electronic calculation chip is influenced by the gas and can exceed a set interval; the accuracy of the abnormal signal determination can be increased. Specifically, the ultrasonic meter further includes: a second reflective aperture plate 6; the second reflecting pore plate 6 is arranged inside the meter body 1, is positioned on a transmission line between the first ultrasonic transducer 2 and the second ultrasonic transducer 3, and is arranged between the first reflecting pore plate 4 and the second ultrasonic transducer 3; the second reflecting hole plate 6 is a reflecting plate provided with a second penetrating hole.
The controller is further configured to:
it is determined whether the first ultrasonic transducer 2 receives the first reflected signal, whether the first ultrasonic transducer 2 receives the fourth transmitted signal, whether the second ultrasonic transducer 3 receives the second reflected signal, and whether the second ultrasonic transducer 3 receives the third transmitted signal.
The second reflection signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the second reflection pore plate 4; the third transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is sequentially transmitted by a first penetrating hole on the first reflecting pore plate 4 and a second penetrating hole on the second reflecting pore plate 6; the fourth transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the second transmission signal is an ultrasonic signal which is sequentially transmitted by the second through holes on the second reflecting pore plate 6 and the first through holes on the first reflecting pore plate 4.
When the first ultrasonic transducer 2 receives the first reflected signal, the fourth transmitted signal is not received, and the second ultrasonic transducer 3 receives the second reflected signal, and the third transmitted signal is not received, it is determined that the first ultrasonic transducer 2 and the second ultrasonic transducer 3 are normal.
When the first ultrasonic transducer 2 receives the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer 3 does not receive the second reflected signal and the third transmitted signal, it is determined that the first ultrasonic transducer 2 is normal and the second ultrasonic transducer 3 has a fault.
When the first ultrasonic transducer 2 does not receive the first reflected signal and the fourth transmitted signal, and the second ultrasonic transducer 3 receives the second reflected signal and the third transmitted signal, it is determined that the first ultrasonic transducer 2 has a fault, and the second ultrasonic transducer 3 is normal.
When the first ultrasonic transducer 2 does not receive the first reflected signal and the fourth transmitted signal, and the second ultrasonic transducer 3 does not receive the second reflected signal and the third transmitted signal, it is determined that the first ultrasonic transducer 2 and the second ultrasonic transducer 3 are both determined to have a fault.
According to the invention, by arranging the two reflecting pore plates, when the liquid to be detected is contained in the meter body 1, whether the ultrasonic transducer has faults or not can be judged by whether the ultrasonic transducer receives the reflected signals or not. On the basis of determining whether the ultrasonic transducer has faults or not according to whether the ultrasonic transducer resonates, the fault judging mode based on the reflected signals is expanded, the self-checking capacity of the ultrasonic instrument is improved, the fault self-checking of the ultrasonic transducer can be realized without depending on a second ultrasonic transducer, the checking time of the ultrasonic instrument is saved, and the maintenance efficiency of the ultrasonic instrument is improved.
Specifically, a part of the ultrasonic waves (first ultrasonic signals) emitted from the first ultrasonic transducer 2 at one end of the meter body 1 is reflected by the first reflecting orifice plate 3 and received by itself, and a part of the ultrasonic waves is received by the second ultrasonic transducer 3 at the other end of the meter body 1 through a set path; and the ultrasonic wave (second ultrasonic signal) emitted by the second ultrasonic transducer 3 at the other end of the meter body 1 is partially reflected by the reflecting pore plate and received by the meter body, and partially received by the ultrasonic transducer at the front end of the meter body through a set path.
(1) The ultrasonic instrument is under the condition of normal operation:
after the ultrasonic wave emitted by the first ultrasonic transducer 2 at one end of the meter body 1 is emitted, the ultrasonic wave reflected by the first reflecting pore plate 4 can be received, and the time interval (reflecting time) between the emission and the receiving acquired by the controller is not influenced by the change of the flow velocity and is within a set interval; the second ultrasonic transducer 3 at the other end of the meter body 1 can receive ultrasonic waves (first transmission signals) from a set path, and the time interval (transmitting time) between the transmission and the reception of the pair acquired by the controller is influenced by information including the flow rate and can be used for calculating the flow rate.
After the ultrasonic wave (second ultrasonic signal) emitted from the second ultrasonic transducer 4 is emitted, the first ultrasonic transducer 2 can receive the ultrasonic wave (second transmission signal) from the set path, and the time interval (inverse emission time) between the emission and the reception of the pair collected by the controller is affected by the information including the flow rate, and can be used for calculating the flow rate.
The difference between the time when the first ultrasonic transducer 2 transmits ultrasonic signals to the second ultrasonic transducer 3 and the time when the second ultrasonic transducer 3 transmits ultrasonic signals to the first ultrasonic transducer 2 (i.e., the difference between the transmitting time and the inverse transmitting time) is caused by the flowing of the liquid to be measured contained in the meter body 1, and the time can be used for calculating the flow rate.
(2) When the liquid to be measured contained in the table body 1 has abnormal gas mixing:
after the ultrasonic wave emitted by the first ultrasonic transducer 2 is emitted, the ultrasonic wave reflected by the first reflecting pore plate can be received, and the time interval between the emission and the receiving collected by the controller is influenced by gas and can exceed a set interval (preset time); the second ultrasonic transducer 3 can receive ultrasonic waves from a set path, and the time interval between the transmission and the reception of the pair acquired by the controller may exceed a reasonable time value interval or may not exceed a time value corresponding to the maximum flow.
The controller can distinguish the abnormal data so as to calculate the flow rate without using the abnormal data; the normal flow rate before and after abnormal data are generated can be used for supplementing conventionally, and flow accumulation is carried out; if the abnormal data is found to be in the air-over working condition for a long time (the air-over pipe, namely, each transducer does not receive a signal, and the water in the pipeline is judged to be absent), the flow rate is considered to be zero.
(3) The meter body 1 of the ultrasonic meter is positioned in an empty tube:
after the ultrasonic wave emitted by the first ultrasonic transducer 2 is emitted, the ultrasonic wave reflected by the reflecting pore plate is not received; the second ultrasonic transducer 3 cannot receive ultrasonic waves coming from the set path; after the ultrasonic waves emitted by the second ultrasonic transducer 3 are emitted, the first ultrasonic transducer cannot receive the ultrasonic waves from the set path.
The controller can recognize at this moment that the instrument is in unusually, the controller can operate detection signal, detection signal is the instruction of special excitation ultrasonic wave, through detection signal self-checking ultrasonic transducer can excite the starting vibration, gets rid of the condition that two ultrasonic transducers of a set of paired damage simultaneously, judges at present to be in the blank pipe, and LCD shows the blank pipe warning, and other communication modes also can send the state of blank pipe to the system.
The first ultrasonic transducer 2 reduces the frequency of the emitted ultrasonic wave, the second ultrasonic transducer 3 does not operate, the ultrasonic wave is not excited, and the operation mode of the normal operation working condition is restored until the first ultrasonic transducer 2 can receive the ultrasonic wave emitted by itself through the reflection pore plate.
(4) The inside of the table body 1 is blocked:
after the ultrasonic wave emitted by the first ultrasonic transducer 2 is emitted, the ultrasonic wave reflected by the reflecting pore plate can be received, and the time interval between the emission and the receiving acquired by the controller is not influenced by the change of the flow velocity and is within a set interval; the second ultrasonic transducer 3 cannot receive ultrasonic waves coming from the set path.
The controller can recognize that the current instrument is abnormal, the controller can run a special ultrasonic excitation instruction, the self-checking meter body rear end ultrasonic transducer can excite vibration, the damage condition of the meter body rear end ultrasonic transducer is eliminated, the current tube section is judged to be blocked, the liquid crystal display is blocked for alarming, and other communication modes can also send the blocked state to the system.
And (3) self-checking: the emission process is a process of converting electric energy into vibration mechanical energy, and if the excitation voltage is measured in the period of time of energy converter emission, the voltage is obviously reduced, and then the normal emission is considered; if the voltage is not reduced, the transducer is considered to be damaged and can not emit ultrasonic waves, and the ultrasonic waves received by the transducer can not be converted into electric energy signals.
The synchronous first ultrasonic transducer 2 reduces the frequency of the emitted ultrasonic waves (the normal ultrasonic waves are inspected 4 times per second), the second ultrasonic transducer 3 does not actively excite the ultrasonic waves until the first ultrasonic transducer 2 can receive the ultrasonic waves emitted by itself through the reflecting pore plate, and meanwhile, the second ultrasonic transducer can receive the ultrasonic waves from the set path, so that the instrument can restore the operation mode of the normal operation working condition.
Optionally, the ultrasonic instrument is provided with a second reflecting pore plate 6, after the ultrasonic wave emitted by the second ultrasonic transducer 4 is emitted, the ultrasonic wave reflected by the second reflecting pore plate 6 can be received, and the time interval between the emission and the receiving acquired by the controller is not influenced by the change of the flow velocity and is within a set interval; the first ultrasonic transducer 2 cannot receive ultrasonic waves from a set path, and can directly judge that the current pipe section is blocked.
(5) The first ultrasonic transducer 2 and/or the second ultrasonic transducer 3 has a fault:
after the ultrasonic wave emitted by the first ultrasonic transducer 2 is emitted, the ultrasonic wave reflected by the first reflecting pore plate 4 is not received; the second ultrasonic transducer 3 cannot receive ultrasonic waves coming from the set path; after the ultrasonic waves emitted by the second ultrasonic transducer 3 are emitted, the first ultrasonic transducer 2 cannot receive the ultrasonic waves from the set path.
The controller can distinguish so far that the current instrument is in abnormality, the controller can run a special ultrasonic wave excitation instruction, self-check whether the ultrasonic transducers can excite vibration, confirm the condition that a group of two ultrasonic transducers in pairs are damaged simultaneously, judge that the two transducers are damaged at present, display that the two transducers are damaged and give an alarm, and other communication modes can also send the damaged state of the transducers to the system.
The operation of the first ultrasonic transducer 2 and the second ultrasonic transducer 3 is stopped by the ultrasonic instrument, ultrasonic waves are not excited, and the operation mode of the normal operation working condition is not restored until the operation of the instrument is restarted by the operation of the instrument when the ultrasonic transducer is maintained and replaced.
In addition, after the ultrasonic wave emitted by the first ultrasonic transducer 2 is emitted, the ultrasonic wave reflected by the reflecting pore plate is not received; the second ultrasonic transducer 3 cannot receive ultrasonic waves coming from the set path; after the ultrasonic waves emitted by the second ultrasonic transducer 3 are emitted, the first ultrasonic transducer 2 cannot receive the ultrasonic waves from the set path.
The controller can distinguish the abnormality of the ultrasonic transducer at the front end of the current instrument, can run a special ultrasonic excitation instruction, and can self-detect whether the ultrasonic transducer at the front end of the instrument can excite vibration; through rechecking, the ultrasonic transducer at the front end of the meter body is indeed damaged, the damage alarm of the transducer at the front end of the liquid crystal display meter body is given, and other communication modes can also send the damaged state of the transducer to the system.
The operation of the first ultrasonic transducer 2 and the second ultrasonic transducer 3 is stopped by the ultrasonic instrument, ultrasonic waves are not excited, and the operation mode of the normal operation working condition is not restored until the operation of the instrument is restarted by the operation of the instrument when the ultrasonic transducer is maintained and replaced.
And in the same way, the second ultrasonic transducer 3 is overhauled according to the detection mode that the first ultrasonic transducer 2 has faults.
Since the ultrasonic signal cannot propagate in the gas, when an abnormal gas exists in the liquid to be measured contained in the meter body 1, the propagation speed of the ultrasonic signal in the liquid to be measured is affected. Therefore, the propagation speed of the ultrasonic signal in the liquid to be detected can be judged, and whether abnormal gas exists in the liquid to be detected or not can be further determined according to the judging result. In judging whether abnormal gas exists in the liquid to be detected according to the reflection time, the controller is specifically configured to:
judging whether abnormal gas exists in the liquid to be detected according to the reflection time.
And when the reflection time is longer than the preset time, determining that abnormal gas exists in the liquid to be detected.
And when the reflection time is less than or equal to the preset time, determining that no abnormal gas exists in the liquid to be detected.
The ultrasonic instrument disclosed by the invention can identify and judge whether abnormal gas exists in the liquid to be detected through the reflection time, and further can consider that the abnormal gas exists in the liquid to be detected has influenced the current measurement of the flow rate of the liquid to be detected if the abnormal gas exists in the liquid to be detected, and the ultrasonic instrument can not measure the current flow rate of the liquid to be detected. After the flow velocity measurement of the liquid to be measured is completed, the ultrasonic instrument records and stores the flow velocity of the liquid to be measured which is not affected by the abnormal gas because the flow velocity of the liquid to be measured when the abnormal gas is detected is not recorded and stored, so that the error data is reduced when the flow velocity measurement of the liquid to be measured is carried out, the error data generated in the measuring process of the ultrasonic instrument are eliminated, and the measuring precision of the ultrasonic instrument is improved.
In determining whether there is a failure of the first ultrasonic transducer 2 and the second ultrasonic transducer 3 according to whether resonance occurs in the first ultrasonic transducer 2 and the second ultrasonic transducer 3, the controller is specifically configured to:
when the first ultrasonic transducer 2 and the second ultrasonic transducer 3 are both resonating, it is determined that the first ultrasonic transducer 2 and the second ultrasonic transducer 3 are normal.
When the first ultrasonic transducer 2 resonates and the second ultrasonic transducer 3 does not resonate, it is determined that the first ultrasonic transducer 2 is normal and the second ultrasonic transducer 3 has a fault.
When the first ultrasonic transducer 2 does not resonate, and the second ultrasonic transducer 3 resonates, it is determined that the first ultrasonic transducer 2 has a fault, and the second ultrasonic transducer 3 is normal.
When neither the first ultrasonic transducer 2 nor the second ultrasonic transducer 3 resonates, it is determined that both the first ultrasonic transducer 2 and the second ultrasonic transducer 3 have a failure.
In combination with the above disclosed embodiments, the first ultrasonic transducer 2, the second ultrasonic transducer 3, and the first reflecting orifice plate 4 of the ultrasonic instrument form a measuring unit, and different numbers of measuring units can be set on the meter body 1 according to actual measurement needs to measure the flow rates of the liquids to be measured of the meter body 1 at different positions of the ultrasonic instrument, and by measuring multiple flow rate data of the liquids to be measured simultaneously, the flow rate measurement error of the liquids to be measured is further reduced, and the detection precision of the ultrasonic instrument is improved.
Still further, the measuring unit further comprises a second reflective aperture plate 6; through setting up the reflecting orifice plate unanimous with ultrasonic transducer quantity, can realize ultrasonic transducer's trouble self-checking based on reflected signal, further improve ultrasonic instrument's maintenance efficiency.
Optionally, the acoustic path of the ultrasonic instrument is U-shaped or V-shaped. Referring to fig. 1 and 3, for the ultrasonic instrument of the U-shaped or V-shaped acoustic path of the existing reflector 5, the reflecting aperture plate may be integrally formed with the existing reflector, i.e., the reflecting plate is a reflector.
By adopting the reflecting plate as the reflecting mirror and correspondingly arranging the reflecting pore plates with penetrating holes, the ultrasonic instrument disclosed by the invention reduces the number of elements in the meter body 1, improves the integration level of the instrument, improves the risk resistance of the instrument, reduces the maintenance cost of the instrument and improves the maintenance efficiency of the instrument. For example, compared with the ultrasonic meter including the first reflecting aperture plate 4 and the reflecting mirror 5 shown in fig. 1, the first reflecting aperture plate 4 of the ultrasonic meter shown in fig. 3 realizes integration of the reflecting plate and the reflecting mirror 5, and in maintenance repair or replacement of the device or replacement of the components, only the first reflecting aperture plate 4 or the second reflecting aperture plate 6 is required to be maintained and repaired or replaced, and two components of the reflecting aperture plate and the reflecting mirror are not required to be maintained and repaired or replaced any more, so that the maintenance cost of the meter is reduced, and the maintenance efficiency of the meter is improved.
In order to achieve the design purpose of the invention, the invention also discloses a control method of the multifunctional alarming ultrasonic instrument, the control method is applied to the multifunctional alarming ultrasonic instrument, and the control method comprises the following steps:
S1: and judging whether the first ultrasonic transducer receives the first reflected signal, whether the first ultrasonic transducer receives the second transmitted signal and whether the second ultrasonic transducer receives the first transmitted signal.
The first reflection signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the first reflection pore plate; the first transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate; the second transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate.
S2: when the first ultrasonic transducer receives a first reflection signal and a second transmission signal and the second ultrasonic transducer receives the first transmission signal, determining reflection time, emission time and inverse emission time, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, and determining the flow rate of the liquid to be detected according to the emission time and the inverse emission time when the abnormal gas does not exist in the liquid to be detected.
The reflection time is a time interval between the first ultrasonic transducer transmitting a first ultrasonic signal and receiving the first reflection signal, the transmission time is a time interval between the first ultrasonic transducer transmitting a first ultrasonic signal and the second ultrasonic transducer receiving the first transmission signal, and the inverse transmission time is a time interval between the second ultrasonic transducer transmitting a second ultrasonic signal and the first ultrasonic transducer receiving the second transmission signal.
S3: when the first ultrasonic transducer does not receive the first reflection signal and the second transmission signal and the second ultrasonic transducer does not receive the first transmission signal, determining that the liquid to be measured is not contained in the meter body.
S4: when the first ultrasonic transducer receives the first reflected signal, the second transmitted signal is not received, and the second ultrasonic transducer does not receive the first transmitted signal, whether the first ultrasonic transducer and the second ultrasonic transducer have faults or not is determined according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not.
In combination with the embodiment of the ultrasonic meter disclosed by the invention, the control method further comprises the following steps:
S5: judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a fourth transmitted signal, whether the second ultrasonic transducer receives a second reflected signal and whether the second ultrasonic transducer receives a third transmitted signal.
The second reflection signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the second reflection pore plate; the third transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained by sequentially penetrating through a first penetrating hole on the first reflecting pore plate and penetrating through a second penetrating hole on the second reflecting pore plate; the fourth transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the second transmission signal is an ultrasonic signal which is sequentially transmitted by the second transmission hole on the second reflection hole plate and the first transmission hole on the first reflection hole plate.
S6: and when the first ultrasonic transducer receives the first reflected signal and does not receive the fourth transmitted signal, and the second ultrasonic transducer receives the second reflected signal and does not receive the third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal.
S7: and when the first ultrasonic transducer receives the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer does not receive the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has faults.
S8: and when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer receives the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer has a fault, and the second ultrasonic transducer is normal.
S9: and when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer does not receive the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
S2, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, wherein the method specifically comprises the following steps:
s21: judging whether abnormal gas exists in the liquid to be detected according to the reflection time;
s22: when the reflection time is longer than a preset time, determining that abnormal gas exists in the liquid to be detected;
S23: and when the reflection time is less than or equal to the preset time, determining that no abnormal gas exists in the liquid to be detected.
S4, determining whether the first ultrasonic transducer and the second ultrasonic transducer have faults according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not, specifically comprising the following steps:
s41: when the first ultrasonic transducer and the second ultrasonic transducer are resonant, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
s42: when the first ultrasonic transducer resonates and the second ultrasonic transducer does not resonate, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
s43: when the first ultrasonic transducer does not resonate, and the second ultrasonic transducer resonates, determining that the first ultrasonic transducer has a fault, and the second ultrasonic transducer is normal;
s44: and when the first ultrasonic transducer and the second ultrasonic transducer are not in resonance, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the control method disclosed in the embodiment, since it corresponds to the device disclosed in the embodiment, the description is relatively simple, and the relevant points are referred to in the description of the method section.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the ultrasonic meter and its core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (8)
1. An ultrasonic meter with a multifunctional alarm, comprising: the meter body, the first ultrasonic transducer, the second ultrasonic transducer, the first reflecting pore plate, the controller and the alarm unit;
the meter body is used for containing liquid to be measured; the first reflecting pore plate is arranged in the meter body and is positioned on a transmission path between the first ultrasonic transducer and the second ultrasonic transducer; the first reflecting pore plate is a reflecting plate provided with a first penetrating hole; the controller is respectively connected with the first ultrasonic transducer, the second ultrasonic transducer and the alarm unit;
The first ultrasonic transducer is used for transmitting a first ultrasonic signal into the meter body; the second ultrasonic transducer is used for transmitting a second ultrasonic signal into the meter body;
the controller is used for:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a second transmitted signal and whether the second ultrasonic transducer receives a first transmitted signal; the first reflection signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the first reflection pore plate; the first transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate; the second transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate;
when the first ultrasonic transducer receives a first reflection signal and a second transmission signal and the second ultrasonic transducer receives the first transmission signal, determining reflection time, emission time and inverse emission time, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, and determining the flow rate of the liquid to be detected according to the emission time and the inverse emission time when the abnormal gas does not exist in the liquid to be detected; the reflection time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and receiving the first reflection signal, the transmission time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and the second ultrasonic transducer receiving the first transmission signal, and the inverse transmission time is a time interval of the second ultrasonic transducer transmitting a second ultrasonic signal and the first ultrasonic transducer receiving the second transmission signal;
When the first ultrasonic transducer does not receive the first reflected signal and the second transmitted signal and the second ultrasonic transducer does not receive the first transmitted signal, determining that the liquid to be measured is not contained in the meter body, and generating a first alarm signal;
when the first ultrasonic transducer receives a first reflected signal, does not receive a second transmitted signal and does not receive the first transmitted signal, determining whether the first ultrasonic transducer and the second ultrasonic transducer have faults according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not, and generating a second alarm signal when the first ultrasonic transducer and/or the second ultrasonic transducer have faults;
the alarm unit is used for carrying out alarm prompt according to the first alarm signal and the second alarm signal.
2. The multi-alarm ultrasonic meter of claim 1, further comprising: a second reflective aperture plate; the second reflecting pore plate is arranged in the meter body, is positioned on a transmission path between the first ultrasonic transducer and the second ultrasonic transducer, and is arranged between the first reflecting pore plate and the second ultrasonic transducer; the second reflecting pore plate is a reflecting plate provided with a second penetrating hole;
The controller is further configured to:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a fourth transmitted signal, whether the second ultrasonic transducer receives a second reflected signal and whether the second ultrasonic transducer receives a third transmitted signal; the second reflection signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the second reflection pore plate; the third transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained by sequentially penetrating through a first penetrating hole on the first reflecting pore plate and penetrating through a second penetrating hole on the second reflecting pore plate; the fourth transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the second transmission signal is an ultrasonic signal which is sequentially transmitted by a second penetrating hole on the second reflecting pore plate and a first penetrating hole on the first reflecting pore plate;
when the first ultrasonic transducer receives a first reflected signal and does not receive a fourth transmitted signal, and the second ultrasonic transducer receives a second reflected signal and does not receive a third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
When the first ultrasonic transducer receives a first reflected signal and a fourth transmitted signal and the second ultrasonic transducer does not receive a second reflected signal and a third transmitted signal, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer receives the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer has a fault and the second ultrasonic transducer is normal;
and when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer does not receive the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
3. The multifunctional alarming ultrasonic instrument according to claim 1, wherein the controller is specifically configured to:
when the reflection time is longer than a preset time, determining that abnormal gas exists in the liquid to be detected;
And when the reflection time is less than or equal to the preset time, determining that no abnormal gas exists in the liquid to be detected.
4. The multi-alarm ultrasonic meter of claim 1, wherein the controller is configured to determine whether there is a failure in the first ultrasonic transducer and the second ultrasonic transducer based on whether the first ultrasonic transducer and the second ultrasonic transducer are resonating, in particular:
when the first ultrasonic transducer and the second ultrasonic transducer are resonant, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
when the first ultrasonic transducer resonates and the second ultrasonic transducer does not resonate, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
when the first ultrasonic transducer does not resonate, and the second ultrasonic transducer resonates, determining that the first ultrasonic transducer has a fault, and the second ultrasonic transducer is normal;
and when the first ultrasonic transducer and the second ultrasonic transducer are not in resonance, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
5. The multifunctional alarming ultrasonic instrument of claim 1, wherein the alarming unit is a liquid crystal display.
6. The multifunctional alarming ultrasonic instrument of claim 1, wherein the reflecting plate is a reflecting mirror.
7. A method for controlling a multifunctional alarming ultrasonic instrument, wherein the method is applied to the multifunctional alarming ultrasonic instrument according to any one of claims 1 to 6, and the method comprises the steps of:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a second transmitted signal and whether the second ultrasonic transducer receives the first transmitted signal; the first reflection signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the first reflection pore plate; the first transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate; the second transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained through the first penetrating hole on the first reflecting pore plate;
When the first ultrasonic transducer receives a first reflection signal and a second transmission signal and the second ultrasonic transducer receives the first transmission signal, determining reflection time, emission time and inverse emission time, judging whether abnormal gas exists in the liquid to be detected according to the reflection time, and determining the flow rate of the liquid to be detected according to the emission time and the inverse emission time when the abnormal gas does not exist in the liquid to be detected; the reflection time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and receiving the first reflection signal, the transmission time is a time interval of the first ultrasonic transducer transmitting a first ultrasonic signal and the second ultrasonic transducer receiving the first transmission signal, and the inverse transmission time is a time interval of the second ultrasonic transducer transmitting a second ultrasonic signal and the first ultrasonic transducer receiving the second transmission signal;
when the first ultrasonic transducer does not receive the first reflected signal and the second transmitted signal and the second ultrasonic transducer does not receive the first transmitted signal, determining that the liquid to be measured is not contained in the meter body;
When the first ultrasonic transducer receives the first reflected signal, the second transmitted signal is not received, and the second ultrasonic transducer does not receive the first transmitted signal, whether the first ultrasonic transducer and the second ultrasonic transducer have faults or not is determined according to whether the first ultrasonic transducer and the second ultrasonic transducer generate resonance or not.
8. The multi-functional, alarming ultrasonic meter of claim 7, wherein the control method further comprises:
judging whether the first ultrasonic transducer receives a first reflected signal, whether the first ultrasonic transducer receives a fourth transmitted signal, whether the second ultrasonic transducer receives a second reflected signal and whether the second ultrasonic transducer receives a third transmitted signal; the second reflection signal is a second ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is reflected by the second reflection pore plate; the third transmission signal is a first ultrasonic signal transmitted by the liquid to be detected, and the ultrasonic signal is obtained by sequentially penetrating through a first penetrating hole on the first reflecting pore plate and penetrating through a second penetrating hole on the second reflecting pore plate; the fourth transmission signal is a second ultrasonic signal transmitted by the liquid to be detected, and the second transmission signal is an ultrasonic signal which is sequentially transmitted by a second penetrating hole on the second reflecting pore plate and a first penetrating hole on the first reflecting pore plate;
When the first ultrasonic transducer receives a first reflected signal and does not receive a fourth transmitted signal, and the second ultrasonic transducer receives a second reflected signal and does not receive a third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer are normal;
when the first ultrasonic transducer receives a first reflected signal and a fourth transmitted signal and the second ultrasonic transducer does not receive a second reflected signal and a third transmitted signal, determining that the first ultrasonic transducer is normal and the second ultrasonic transducer has a fault;
when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer receives the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer has a fault and the second ultrasonic transducer is normal;
and when the first ultrasonic transducer does not receive the first reflected signal and the fourth transmitted signal and the second ultrasonic transducer does not receive the second reflected signal and the third transmitted signal, determining that the first ultrasonic transducer and the second ultrasonic transducer have faults.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311866759.3A CN117825744A (en) | 2023-12-29 | 2023-12-29 | Multifunctional alarming ultrasonic instrument and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311866759.3A CN117825744A (en) | 2023-12-29 | 2023-12-29 | Multifunctional alarming ultrasonic instrument and control method thereof |
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| CN117825744A true CN117825744A (en) | 2024-04-05 |
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| CN202311866759.3A Pending CN117825744A (en) | 2023-12-29 | 2023-12-29 | Multifunctional alarming ultrasonic instrument and control method thereof |
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| CN (1) | CN117825744A (en) |
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