CN217543157U - Ultrasonic Doppler current meter with wireless data transmission function - Google Patents
Ultrasonic Doppler current meter with wireless data transmission function Download PDFInfo
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Abstract
An ultrasonic Doppler current meter with a wireless data transmission function comprises an ultrasonic Doppler current meter body, a solar cell panel, a storage battery, a supporting tube, an element box and a short message module, and further comprises a high current comparison circuit, a low current comparison circuit and a battery performance detection circuit; the upper part of the supporting tube is movably provided with a movable tube, the solar cell panel is arranged on the movable tube, the supporting tube is arranged on one side of a bank, one side of the upper end of the movable tube is transversely provided with a branch tube, a transverse tube is movably arranged in the branch tube, and the ultrasonic Doppler current meter body is arranged on one side of the transverse tube; the storage battery, the short message module, the high flow rate comparison circuit, the low flow rate comparison circuit and the battery performance detection circuit are arranged in the element box and are electrically connected. This novel when river velocity of flow is higher than or is less than the managers setting value to and when performance such as solar cell panel descend, can be real-time automatic for the cell-phone propelling movement SMS of the relevant personnel of distal end, can play the mesh of the relevant personnel of audio-visual suggestion distal end like this.
Description
Technical Field
The utility model relates to a check out test set field, especially an ultrasonic wave Doppler current meter with wireless transmission data function.
Background
The ultrasonic Doppler current meter is a current meter made by applying the acoustic Doppler effect principle, and adopts an ultrasonic transducer to detect the water flow velocity of areas such as rivers and the like by ultrasonic waves. The measuring point of the ultrasonic Doppler current meter is in front of the probe (the probe is arranged above a riverbed and is downwards aligned to flowing water flow), and the ultrasonic Doppler current meter has the advantages of high measuring precision, wide measuring range, capability of measuring weak current and strong current, high resolution and high response speed, does not have the problems of sediment blockage and waterweed winding due to the fact that no mechanical rotating part exists, and also has the advantages of firmness and durability, difficulty in damage, simplicity and convenience in operation and the like. The existing advanced ultrasonic Doppler current meter generally adopts a GPRS module to transmit water flow data of a river, when the ultrasonic Doppler current meter works specifically, a probe acquires the water flow data of the river and then outputs a dynamically changed analog quantity voltage signal (the voltage signal output by a probe pin 3 is higher when the water flow speed is higher and is lower when the water flow speed is lower), the probe enters a signal input end of an internal singlechip module, the singlechip module converts the analog voltage signal into a digital signal and outputs the digital signal to the GPRS module, the GPRS module transmits the data through a wireless mobile network, after a remote relevant person receives the data through an application unit in a smart phone or a PC (personal computer) at the side, a display screen displays the change of the field river flow speed in a digital or waveform diagram mode, so that the remote person can actually know the field water flow data, and can perform targeted treatment on the field according to the requirement when the water flow is abnormal (for example, the current flow speed is too high, represents that the water flow speed is too high, the water flow represents the influence on power generation or downstream irrigation and the like, a downstream gate can be opened to discharge water or shunt the river water flow and the like, and the flow of other diversion channels can be temporarily increased when the water flow is abnormal water flow.
Although the existing ultrasonic doppler current meter realizes the intelligent detection of the river water flow velocity to a certain extent, the existing ultrasonic doppler current meter is limited by the structure, and has some technical problems, which are embodied as follows. Firstly, the method comprises the following steps: although data remote transmission is achieved, related remote personnel need to watch data of a smart phone or a PC in an active mode, and therefore a problem is brought, namely, due to the fact that the function of prompting the related personnel when water flow is too large or too low is not achieved, when the data are not actively checked by workers, the situation that the water flow speed is too large or too low on site for a long time is possible, the workers do not find specific problems to conduct targeted treatment, and therefore adverse effects are brought to power generation, irrigation and the like of related watersheds. Secondly, the method comprises the following steps: in order to save electric energy and avoid the defects of inconvenient construction and high construction cost caused by erecting a power supply line, the conventional ultrasonic Doppler current meter generally adopts a solar cell and a storage battery for charging and supplying power, but a solar cell panel possibly reduces the power generation capability along with the prolonging of the service time and the influences of self quality factors, dirt on a light receiving surface and the like, and finally the normal power utilization requirement of related equipment cannot be met, so that the whole equipment cannot effectively detect the water flow velocity of the related area; at present, the working performance of the solar cell panel and the storage battery is generally checked in a manual mode, which not only brings inconvenience to workers, but also increases the maintenance cost of related parties.
SUMMERY OF THE UTILITY MODEL
In order to overcome current ultrasonic wave Doppler current meter because of the structure limits, exist as the background the drawback, the utility model provides a based on ultrasonic wave Doppler current meter body, not only have the function of surveying the velocity of water and uploading data, can also be under relevant circuit combined action, when the velocity of water is higher than or is less than the value that managers set for, and when the solar cell panel performance descends, the real-time automation of very first time is through the audio-visual distal personnel of suggestion of SMS mode, the on-the-spot particular case can be mastered at the very first time to the distal personnel, thereby pertinence is handled, brought the facility for the staff from this, and reduced the ultrasonic wave Doppler current meter that has the wireless transmission data function of relevant side's expense of labor.
The utility model provides a technical scheme that its technical problem adopted is:
an ultrasonic Doppler current meter with a wireless data transmission function comprises an ultrasonic Doppler current meter body, a solar cell panel, a storage battery, a supporting tube, an element box and a short message module, and is characterized by further comprising a high current speed comparison circuit, a low current speed comparison circuit and a battery performance detection circuit; the upper part of the supporting tube is movably provided with a movable tube, the solar cell panel is arranged on the movable tube, the supporting tube is arranged on one side of a bank, one side of the upper end of the movable tube is transversely provided with a branch tube, a transverse tube is movably arranged in the branch tube, and the ultrasonic Doppler current meter body is arranged on one side of the transverse tube; the storage battery, the short message module, the high flow rate comparison circuit, the low flow rate comparison circuit and the battery performance detection circuit are arranged in the element box; the signal output end of the ultrasonic Doppler current meter body is electrically connected with the signal input ends of the high-flow-rate comparison circuit and the low-flow-rate comparison circuit, and the signal output ends of the high-flow-rate comparison circuit, the low-flow-rate comparison circuit and the battery performance detection circuit are electrically connected with the signal input end of the short message module.
Furthermore, the high-flow-rate comparison circuit comprises an operational amplifier, an adjustable resistor and a resistor which are electrically connected, one end of a first adjustable resistor is connected with a positive power input end of the operational amplifier, a negative power input end of the operational amplifier is connected with one end of the first resistor and one end of a second resistor, the other end of the first adjustable resistor is connected with the other end of the first resistor and a non-inverting input end of the operational amplifier, one end of the second adjustable resistor is connected with the other end of the second resistor and an inverting input end of the operational amplifier, and an output end of the operational amplifier is connected with one end of a third resistor.
The low-flow-rate comparison circuit comprises an operational amplifier, an adjustable resistor, a resistor and an NPN triode which are electrically connected, one end of a first adjustable resistor is connected with the positive power input end of the operational amplifier, the negative power input end of the operational amplifier is connected with one end of the first resistor, one end of a second resistor and the emitting electrode of the NPN triode, the other end of the first adjustable resistor is connected with the other end of the first resistor and the non-inverting input end of the operational amplifier, one end of the second adjustable resistor is connected with the other end of the second resistor and the inverting input end of the operational amplifier, the output end of the operational amplifier is connected with one end of a third resistor, and the other end of the third resistor is connected with the NPN base electrode of the triode.
Furthermore, the battery performance detection circuit comprises an adjustable resistor, a resistor and NPN triodes which are electrically connected, wherein one end of the adjustable resistor is connected with one end of a first resistor and one end of a second resistor, the other end of the second resistor is connected with the base of the first NPN triode, the collector of the first NPN triode is connected with one end of a third resistor and the base of the second NPN triode, and the emitters of the two NPN triodes are connected.
The utility model has the advantages that: this novel based on ultrasonic wave Doppler current meter body has and surveys the water velocity of flow and uploads all functions of data. This is novel, compare the circuit at the high velocity of flow and compare the circuit at the low velocity of flow, battery performance detection circuitry and other relevant circuit combined action down, when the river velocity of flow is higher than or is less than the value that managers set for, and when solar cell panel and battery performance descend, can be very first time automatic through the SMS mode for the relevant personnel's of distal end cell-phone propelling movement different content SMS of distal end, can play visual suggestion distal end relevant personnel's purpose like this, distal end personnel can master scene particular case at the very first time, thereby pertinence is handled, brought the facility for the staff from this, the normal work of whole equipment has been guaranteed, and relevant side's labour cost expenditure has been reduced. Based on the above, the novel device has a good application prospect.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a circuit diagram of the present invention.
Detailed Description
As shown in fig. 1 and 2, an ultrasonic doppler flow velocity meter with a function of wirelessly transmitting data includes an ultrasonic doppler flow velocity meter body A1 with a function of wirelessly transmitting data, a solar cell panel G, a storage battery G1, a support tube 1, an element box 2, a short message module A3, a high flow velocity comparison circuit 3, a low flow velocity comparison circuit 4, and a battery performance detection circuit 5; the lower end of a supporting tube 1 is vertically welded in the middle of the upper end of a supporting plate 6, two screw holes are formed in the upper portion of the left side end of the supporting tube 1, a hand-operated screw 7 is screwed into each screw hole, a movable tube 8 is movably and vertically sleeved on the supporting tube 1 and fixed through the hand-operated screw, the lower end of a frame of a solar cell panel is low in front and high in back, the movable tube 8 is mounted on the movable tube 8 through a screw nut, the supporting plate 6 is mounted on a concrete base on one side of a river bank through the screw nut, a branch tube 9 is transversely welded on the right side of the upper end of the movable tube 8, two screw holes are formed in the upper portion of the right side end of the branch tube 9, a hand-operated screw 10 is screwed into each screw hole, a transverse tube 11 is movably sleeved on the right end of the branch tube and fixed through the hand-operated screw 10, and an ultrasonic Doppler current meter body A1 is horizontally mounted below the right end of the transverse tube 11 through the screw nut, and a probe of the ultrasonic Doppler current meter body is positioned in the front; the storage battery G, the short message module A3, the high flow rate comparison circuit 3, the low flow rate comparison circuit 4 and the battery performance detection circuit 5 are installed on a circuit board in the element box 2, and the element box 2 is installed at the front end of the movable pipe 8 through a screw nut.
As shown in fig. 1 and 2, the ultrasonic doppler flow velocity meter body A1 is an ultrasonic doppler flow velocity meter finished product with a model HD-DPF420 and a single chip microcomputer module and a GPRS module inside, the solar cell panel G is a solar cell panel finished product with a model 12V/20W (no-load voltage is higher than 12V, so as to be beneficial to charging a 12V storage battery), and the storage battery G1 is a lithium storage battery with a model 12V/30 Ah. The high flow rate comparison circuit comprises an operational amplifier A2 connected through circuit board wiring, adjustable resistors RP1 and RP2, resistors R1, R2 and R3, wherein one end of the first adjustable resistor RP1 is connected with a positive power input end 7 pin of the operational amplifier A2, a negative power input end 4 pin of the operational amplifier A2 is connected with one end of the first resistor R1, one end of the second resistor R2 is connected, the other end of the first adjustable resistor RP1 is connected with the other end of the first resistor R1, the in-phase input end 3 pin of the operational amplifier A2 is connected, one end of the second adjustable resistor RP2 is connected with the other end of the second resistor R2, the reverse input end 2 pin of the operational amplifier A2 is connected, and the output end 6 pin of the operational amplifier A2 is connected with one end of the third resistor R3. The low-flow-rate comparison circuit comprises an operational amplifier A4, adjustable resistors RP3 and RP4, resistors R3, R4 and R5 and an NPN triode Q1 which are connected through circuit board wiring, wherein one end of the first adjustable resistor RP3 is connected with a pin 7 of a positive power input end of the operational amplifier A4, a pin 4 of a negative power input end of the operational amplifier A4 is connected with one end of the first resistor R3, one end of the second resistor R4 and an emitting electrode of the NPN triode Q1, the other end of the first adjustable resistor RP3 is connected with the other end of the first resistor R3 and a pin 3 of a non-inverting input end of the operational amplifier A4, one end of the second adjustable resistor RP4 is connected with the other end of the second resistor R4 and a pin 2 of an inverting input end of the operational amplifier A4, a pin 6 of an output end of the operational amplifier A4 is connected with one end of a third resistor R5, and the other end of the third resistor R5 is connected with a base of the NPN triode Q1. The battery performance detection circuit comprises an adjustable resistor RP5, resistors R6, R7, R8 and NPN triodes Q2 and Q3 which are connected through circuit board wiring, one end of the adjustable resistor RP5 is connected with one end of a first resistor R6 and one end of a second resistor R7, the other end of the second resistor R7 is connected with a base electrode of the first NPN triode Q2, a collector electrode of the first NPN triode Q2 is connected with one end of a third resistor R8 and the base electrode of the second NPN triode Q3, and emitting electrodes of the two NPN triodes Q2 and Q3 are connected.
As shown in fig. 1 and 2, two poles of a power supply of a solar cell panel G, two poles of a power supply of a storage battery G1, power input terminals 1 and 2 of a short message module A3, pins 7 and 4 of a power input terminal operational amplifier A2 of a high flow rate comparison circuit, pins 7 and 4 of a power input terminal operational amplifier A4 of a low flow rate comparison circuit, and the other end of a power input terminal adjustable resistor RP5 and the other end of a resistor R6 of a battery performance detection circuit are respectively connected by wires; the other end of the signal output end 3 pin of the ultrasonic Doppler current meter body A1 is connected with the other end of the signal input end adjustable resistor RP2 of the high-flow-rate comparison circuit, the other end of the signal input end adjustable resistor RP4 of the low-flow-rate comparison circuit is connected through a lead, and the other end of the signal output end resistor R3 of the high-flow-rate comparison circuit, the collector electrode of the signal output end NPN triode Q1 of the low-flow-rate comparison circuit, the collector electrode of the signal output end NPN triode Q3 of the battery performance detection circuit and the signal input ends 5, 4 and 3 pins of the short message module A3 are respectively connected through leads.
Fig. 1, 2 show, height about through adjusting movable tube 8 before this novel application can realize adjusting the purpose of suitable height between ultrasonic wave doppler current meter body A1 and the surface of water, violently manages the transverse position of pipe 11 through horizontal regulation, can realize adjusting ultrasonic wave doppler current meter body A1 and effectively be located the purpose above the river surface of water, has guaranteed ultrasonic wave doppler current meter body A1 to the survey of river water velocity of flow. Solar cell panel G receives illumination at ordinary times and produces the electric energy and charge for battery G1, has guaranteed this novel evening waiting time consumer can normally be got electric work like this. In the high flow rate comparison circuit, after the ultrasonic Doppler current meter body A1 works with electricity, the flow rate of the water surface of a river is different, after a probe (3 feet are output ends) of the ultrasonic Doppler current meter body A1 collects water flow data of the river (the higher the voltage signal output when the water flow rate is higher, and the lower the voltage signal is vice versa), a dynamically-changed analog quantity voltage signal is output to the signal input end of an internal singlechip module (the singlechip module converts the analog voltage signal into a digital signal and outputs the digital signal to an internal GPRS module, the GPRS module transmits the data remotely through a wireless mobile network, after a remote related person receives the data through an application unit in a smart phone or a PC (personal computer), a display screen displays the change of the flow rate of the river on site in a digital or waveform graph mode, so that the remote person can actually know the water flow data on the site, and carries out targeted treatment on the site according to the needs when the water flow is abnormal), and the voltage signal also enters the other ends of a resistor RP2 and an RP 4. In the high flow rate comparison circuit, the voltage of the pin 3 at the non-inverting input end of the operational amplifier A2 is obtained by voltage division of an adjustable resistor RP1 and a resistor R1, for example, the voltage is set to about 6V, when the river flow rate is lower than the highest flow rate set by a technician through the adjustable resistor RP2 (the adjustable resistors RP1 and RP2 have handles positioned outside the first and second openings at the front end of the element box, and the side ends of the handles are respectively marked with continuous numbers representing the river flow rate, for example, the number 4 represents the flow rate of 4 meters per second), the voltage signal output by the probe pin 3 of the ultrasonic doppler flow velocity meter body A1 is subjected to voltage division and current limitation through the adjustable resistor RP2 and the resistor R2 and then enters the pin 2 at the inverting input end of the operational amplifier A2, the voltage is lower than the voltage of the pin 3 at the non-inverting input end, then the pin 6 of the operational amplifier A2 outputs a high level, and the pin 5 of the short message module A3 does not input a low level signal and does not send a short message. When the river flow velocity is higher than the highest flow velocity set by a technician through an adjustable resistor RP2, a voltage signal output by a probe 3 pin of an ultrasonic Doppler current meter body A1 is subjected to voltage division and current limitation through the adjustable resistor RP2 and a resistor R2 and then enters an inverting input end 2 pin of an operational amplifier A2, the voltage is higher than a non-inverting input end voltage, then a pin 6 of the operational amplifier A2 outputs a low level and enters a pin 5 of a short message module A3, the short message module A3 can send out a third short message stored in the operational amplifier through a wireless mobile network, and after a mobile phone of a remote-end related person receives the short message (for example, the content of the mobile phone short message is too fast), the fast river flow velocity of a scene can be known at the first time.
As shown in fig. 1 and 2, after the ultrasonic doppler current meter body A1 works with electricity, the flow velocity of the water surface of a river is different, and after a probe inside the ultrasonic doppler current meter body collects water flow data of the river, a dynamically changing analog voltage signal is output and enters a signal input end of a singlechip module inside the ultrasonic doppler current meter body, and meanwhile, the voltage signal also enters the other end of an adjustable resistor RP 4. In the low flow rate comparison circuit, the voltage of the 3-pin non-inverting input end of the operational amplifier A4 is obtained by dividing the voltage by the adjustable resistor RP3 and the resistor R3, for example, the voltage is set to about 4V, when the river flow rate is higher than the minimum flow rate set by a technician through the adjustable resistor RP4 (the adjustable resistors RP3 and RP4 have handles located outside the third and fourth openings at the front end of the element box, and the side ends of the handles are respectively marked with continuous numbers representing the river flow rate, for example, the number 2.5 represents the flow rate of 2.5 meters per second), the voltage signal output by the 3-pin probe of the ultrasonic doppler flow rate meter body A1 enters the 2-pin voltage of the inverting input end of the operational amplifier A4 after being subjected to current limiting and voltage dividing by the adjustable resistor RP4 and the resistor R4, and the voltage is higher than the voltage of the 3-pin non-inverting input end, so that the 6-pin of the operational amplifier A2 outputs a low level, and the 4-pin of the short message module A3 does not input a low level signal and does not send a short message. When the river flow rate is lower than the minimum flow rate set by a technician through an adjustable resistor RP4, a voltage signal output by a probe 3 pin of an ultrasonic Doppler current meter body A1 enters an inverting input end 2 pin of an operational amplifier A3 after being subjected to voltage division and current limitation through the adjustable resistor RP4 and a resistor R4, the voltage is lower than the voltage of a non-inverting input end 3 pin, then a pin 6 of the operational amplifier A2 outputs a high level, the high level is subjected to voltage reduction and current limitation through a resistor R5 and enters a base electrode of an NPN triode Q1, the NPN triode Q1 is conducted with a collector electrode thereof to output a low level and enters a pin 4 of a short message module A3, the short message module A3 can send a second short message stored inside out through a wireless mobile network, and a remote-end related personnel can know that the river flow rate is too low at the first time after receiving the short message (for example, the content of the mobile phone short message is too low flow rate).
As shown in fig. 1 and 2, in the battery performance detection circuit, when the solar cell panel G and the storage battery G12 have good performance (for example, voltages above 12V), the 12V power is divided by the adjustable resistor RP5 and the resistor R6, and then the divided voltage is reduced by the resistor R7, current is limited, and the base of the NPN triode Q2 is higher than 0.7V, the NPN triode Q2 turns on the collector to output a low level to enter the base of the NPN triode Q3, and the base of the NPN triode Q3 is not forward biased to be cut off, so that the low level signal is not input to the pin 3 of the short message module A3, and the short message is not sent. When the performance of the solar cell panel G and the storage battery G1 is poor (for example, the voltage is below 12V), after the voltage is divided by the adjustable resistor RP5 and the resistor R6 which are lower than the 12V power supply (the handle of the adjustable resistor RP5 is located outside the fifth opening at the front end of the component box, continuous digital representative voltage digits are respectively marked at the side end of the handle, for example, the digital 12 represents 12V), the voltage is reduced and limited by the resistor R7, the voltage is reduced and limited, the voltage is entered into the base of the NPN triode Q2, the base of the NPN triode Q2 is lower than 0.7v, the collector of the NPN triode Q2 is cut off, no low level is output, the low level is entered into the base of the NPN triode Q3, the base of the NPN triode Q3 is reduced and limited by the resistor R8 to obtain appropriate forward bias voltage, the collector of the NPN is conducted, the low level is output, the short message is entered into the pin 3 of the short message module A3, the first short message stored inside is sent out through the wireless mobile network, and after the short message is received by the mobile phone of a remote-end related person (for example, the content of the mobile phone is battery performance is poor), the short message), the solar cell panel or the storage battery can be known that the field is damaged at the first time.
As shown in fig. 1 and 2, when a technician in the present invention adjusts the resistance value of the high or low adjustable resistor RP1 in advance, the partial pressure of the resistor R1 and the resistance value of the adjustable resistor RP1 changes, and when the resistance value of the adjustable resistor RP1 is adjusted relatively greatly, the partial pressure of the resistor R1 decreases, so that the threshold voltage of the non-inverting input terminal of the operational amplifier A2 decreases, and when the river flow speed is relatively slow in the subsequent work, the voltage signal output by the pin 3 of the ultrasonic doppler flow velocity meter body A1 enters the pin 2 of the operational amplifier A2, and the pin voltage is higher than the pin 3 voltage, so that the short message module A3 sends a corresponding short message, that is, the highest ratio of the detected water flow speed of the present invention is decreased than the threshold value; adjustable resistance RP 1's resistance value regulation is small relatively, resistance R1 partial pressure grow, and the homophase input end threshold voltage grow is put to so fortune, and follow-up during operation, when the river velocity of water is fast relatively, the voltage signal of 3 foot outputs of ultrasonic wave Doppler current meter body A1 gets into that the fortune is put 2 foot voltages of A2 and just can be higher than 3 foot voltages, and then SMS module A3 sends corresponding SMS, and this novel detection water velocity is the highest threshold value grow of comparing promptly. When a technician pre-adjusts the resistance value of the high or low adjustable resistor RP3, the partial pressure of the high or low adjustable resistor RP3 and the resistor R3 is changed, when the resistance value of the adjustable resistor RP3 is adjusted to be relatively large, the partial pressure of the resistor R3 is reduced, then the threshold voltage of the in-phase input end of the operational amplifier A4 is reduced, when the river flow speed is relatively slow in subsequent work, the voltage signal output by the pin 3 of the ultrasonic Doppler current meter body A1 enters the pin 2 voltage of the operational amplifier A2 and is higher than the pin 3 voltage, the short message module A3 does not send corresponding short messages, namely the lowest ratio of the water flow speed detected by the novel detection device is reduced compared with the threshold value; adjustable resistance RP 3's resistance value is adjusted when relatively small, resistance R3 partial pressure grow, and the homophase input end threshold voltage grow of A4 is put to fortune then, and follow-up during operation, when river velocity of water is fast relatively, the voltage signal of 3 feet output of ultrasonic wave Doppler current meter body A1 gets into 2 feet voltage that fortune was put A2 and just can be higher than 3 feet voltage, and SMS module A3 does not send corresponding SMS, is exactly this novel detection water velocity of flow compares threshold grow at minimum.
As shown in fig. 1 and 2, when a technician in the present invention adjusts the resistance value of the high or low adjustable resistor RP2 in advance, the partial pressure of the resistor R2 and the resistance value of the adjustable resistor RP2 will change, and when the resistance value of the adjustable resistor RP2 is adjusted relatively greatly, the partial pressure of the resistance R2 will decrease, so that the threshold voltage of the inverting input terminal of the operational amplifier A2 will decrease, and when the river flow speed is relatively fast in the subsequent work, the voltage signal output by the pin 3 of the ultrasonic doppler flow velocity meter body A1 enters the pin 2 of the operational amplifier A2, and the voltage will be higher than the pin 3 voltage, so that the short message module A3 sends a corresponding short message, that is, the highest ratio of the detected water flow speed of the present invention is greater than the threshold value; adjustable resistance RP 2's resistance value regulation is for relatively small, resistance R2 partial pressure grow, and the homophase input end threshold voltage grow of A2 is put to fortune then, follow-up during operation, and river velocity of water is for relatively small, and the voltage signal of 3 foot output of ultrasonic wave Doppler current meter body A1 gets into 2 foot voltages that A2 was put to fortune and will be higher than 3 foot voltages, and then SMS module A3 sends corresponding SMS, promptly this novel detection water velocity of water is the highest to compare the threshold value and diminishes promptly. When a technician adjusts the resistance value of the high or low adjustable resistor RP4 in advance, the partial pressure of the resistor RP4 and the partial pressure of the resistor R4 are changed, when the resistance value of the adjustable resistor RP4 is adjusted to be relatively large, the partial pressure of the resistor R4 is reduced, then the threshold voltage of the in-phase input end of the operational amplifier A4 is reduced, when the river flow speed is relatively fast in the follow-up work, the voltage signal output by the pin 3 of the ultrasonic Doppler current meter body A1 enters the voltage of the pin 2 of the operational amplifier A2 and is higher than the voltage of the pin 3, the short message module A3 does not send corresponding short messages, namely the lowest ratio of the water flow speed detected by the novel detection device is larger than the threshold value; when adjustable resistance RP 4's resistance value was adjusted for relatively small, resistance R4 partial pressure grow, the inverting input threshold voltage grow of A4 was put to fortune then, follow-up during operation, when river velocity of water was slow relatively, the voltage signal of 3 feet output of ultrasonic wave Doppler current meter body A1 got into 2 feet voltages that A2 was put to fortune and will be higher than 3 feet voltages, SMS module A3 does not send corresponding SMS, is exactly this novel detection water velocity is minimum to be compared the threshold value and is diminished.
As shown in fig. 1 and 2, when a technician in the present invention adjusts the resistance value of the high or low adjustable resistor RP5 in advance, the divided voltage of the resistor R6 and the resistance value of the adjustable resistor RP5 changes, and when the resistance value of the adjustable resistor RP5 is adjusted relatively greatly, the divided voltage of the resistor R6 decreases, so that when the voltages of the solar battery G and the storage battery G1 are relatively high, the NPN triode Q1 is turned on, and the short message module A3 does not send a corresponding short message, that is, the set voltage detection threshold becomes high; when the resistance value of the adjustable resistor RP5 is adjusted relatively small and the voltage division of the resistor R6 becomes large, then when the voltages of the solar battery G and the storage battery G1 are relatively low, the NPN triode Q1 is turned on, and the short message module A3 does not send a corresponding short message, that is, the set voltage detection threshold becomes low. Through all above-mentioned mechanisms and circuit combined action, this novel based on ultrasonic wave Doppler current meter body, have all functions of surveying the velocity of water and uploading data, compare the circuit at the high velocity of water and compare the circuit at the low velocity of water, battery performance detection circuit and, under other relevant circuit combined action, when the velocity of water is higher than or is less than the value that managers set for, and when solar cell panel performance descends, can be very first time automatic through the different SMS contents of SMS of the cell-phone propelling movement of the relevant personnel of distal end through the SMS mode in real time, can play the mesh of the relevant personnel of audio-visual suggestion distal end like this, the remote personnel can master scene particular case at the very first time, thereby pertinence is handled, thereby brought the facility for the staff, whole equipment's normal work has been guaranteed, and relevant side's expense of labor has been reduced. In fig. 2, operational amplifiers A2 and A4 are operational amplifier integrated circuits of a model UA 741; the model of NPN triodes Q1, Q2 and Q3 is 9013; the resistances of the resistors R1, R2, R3, R4, R5, R6, R7 and R8 are respectively 20K, 1K, 20K, 47KK and 200K; the models of the adjustable resistors RP1, RP2, RP3, RP4 and RP5 are 470K (the models are respectively adjusted to 20K, 15K, 16K, 12K and 300K in the embodiment); the short message module A3 is a 4G short message alarm with the model of HZ-1803, is provided with two power supply input ends and eight low-level signal trigger ends, can edit eight short messages at most in advance, and can respectively send eight short messages after the eight signal trigger ends respectively input low-level signals.
The basic principles and essential features of the invention and the advantages thereof have been shown and described above, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other embodiments without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (4)
1. An ultrasonic Doppler current meter with a wireless data transmission function comprises an ultrasonic Doppler current meter body, a solar cell panel, a storage battery, a supporting tube, an element box and a short message module, and is characterized by further comprising a high current speed comparison circuit, a low current speed comparison circuit and a battery performance detection circuit; the upper part of the supporting tube is movably provided with a movable tube, the solar cell panel is arranged on the movable tube, the supporting tube is arranged on one side of a bank, one side of the upper end of the movable tube is transversely provided with a branch tube, a transverse tube is movably arranged in the branch tube, and the ultrasonic Doppler current meter body is arranged on one side of the transverse tube; the storage battery, the short message module, the high flow rate comparison circuit, the low flow rate comparison circuit and the battery performance detection circuit are arranged in the element box; the signal output end of the ultrasonic Doppler current meter body is electrically connected with the signal input ends of the high-flow-rate comparison circuit and the low-flow-rate comparison circuit, and the signal output ends of the high-flow-rate comparison circuit, the low-flow-rate comparison circuit and the battery performance detection circuit are electrically connected with the signal input end of the short message module.
2. The ultrasonic Doppler current meter with the function of wirelessly transmitting data according to claim 1, wherein the low current comparison circuit comprises an operational amplifier, an adjustable resistor, a resistor and an NPN triode which are electrically connected, one end of a first adjustable resistor is connected with a positive power supply input end of the operational amplifier, a negative power supply input end of the operational amplifier is connected with one end of the first resistor, one end of a second resistor and an emitter of the NPN triode, the other end of the first adjustable resistor is connected with the other end of the first resistor and a non-inverting input end of the operational amplifier, one end of the second adjustable resistor is connected with the other end of the second resistor and an inverting input end of the operational amplifier, an output end of the operational amplifier is connected with one end of a third resistor, and the other end of the third resistor is connected with a base of the NPN triode.
3. The ultrasonic Doppler current meter with the function of wirelessly transmitting data according to claim 1, wherein the high current rate comparison circuit comprises an operational amplifier, an adjustable resistor and a resistor which are electrically connected, wherein one end of a first adjustable resistor is connected with a positive power input end of the operational amplifier, a negative power input end of the operational amplifier is connected with one end of the first resistor and one end of a second resistor, the other end of the first adjustable resistor is connected with the other end of the first resistor and a non-inverting input end of the operational amplifier, one end of the second adjustable resistor is connected with the other end of the second resistor and an inverting input end of the operational amplifier, and an output end of the operational amplifier is connected with one end of a third resistor.
4. The ultrasonic doppler current meter with the function of wirelessly transmitting data according to claim 1, wherein the battery performance detection circuit comprises an adjustable resistor, a resistor and an NPN transistor electrically connected to each other, one end of the adjustable resistor is connected to one end of the first resistor and one end of the second resistor, the other end of the second resistor is connected to a base of the first NPN transistor, a collector of the first NPN transistor is connected to one end of the third resistor and the base of the second NPN transistor, and emitters of the two NPN transistors are connected to each other.
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| CN202221110273.8U CN217543157U (en) | 2022-05-10 | 2022-05-10 | Ultrasonic Doppler current meter with wireless data transmission function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793313A (en) * | 2023-05-17 | 2023-09-22 | 杨龙剑 | Water conservancy monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116793313A (en) * | 2023-05-17 | 2023-09-22 | 杨龙剑 | Water conservancy monitoring system |
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