CN214667071U

CN214667071U - Remote transmission intelligent electronic water meter

Info

Publication number: CN214667071U
Application number: CN202121291813.2U
Authority: CN
Inventors: 王卫星; 肖仙谦; 郑志威; 马恩力; 张凌韬; 叶建华
Original assignee: Zhejiang Aerospace Hengtong Technology Co ltd
Current assignee: Zhejiang Aerospace Hengtong Technology Co ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-11-09
Anticipated expiration: 2031-06-09

Abstract

The utility model provides a teletransmission intelligence electronic water meter belongs to water gauge technical field. The problems that a traditional mechanical water meter is low in metering precision, a remote water meter is high in power consumption and prone to human and environmental interference are solved. The remote transmission intelligent electronic water meter comprises a generator and a data transmission control module electrically connected with the generator, wherein the data transmission control module comprises a lithium battery, a control circuit, a wireless communication circuit, a voltage acquisition circuit and a pulse acquisition circuit; the pulse acquisition circuit, the voltage acquisition circuit and the wireless communication circuit are all connected with the control circuit, and the control circuit is used for converting the signals acquired by the pulse acquisition circuit and the voltage acquisition circuit into water volume data and sending the water volume data to the remote platform through the wireless communication circuit. The utility model discloses can show the accuracy that improves the water yield and gather and the continuity of data teletransmission, solve the people and the environmental disturbance problem betterly.

Description

Remote transmission intelligent electronic water meter

Technical Field

The utility model belongs to the technical field of the water gauge, a teletransmission intelligence electronic water meter is related to.

Background

At present, water meters used domestically and internationally are almost all mechanical water meters which are clear in one color and are used for hundreds of years, wherein the mechanical water meters are used for driving impellers to rotate through water flow and converting the water flow into water quantity indication of a water meter dial rotating wheel through multi-stage gear speed change; however, due to the multi-stage coupling of the bearing and the gear, the quality and the precision of the water meter are lower due to the superposition of various different rotating speeds.

Along with the development of the internet of things technology, in order to read the meter conveniently, the application of the remote water meter is more and more, but the internet of things remote water meter in the market mainly adopts the mode that an electromagnetic transmitter is additionally arranged in the meter body of the mechanical water meter, water quantity information is taken out through a wireless transmitting and receiving system additionally arranged on the meter body, the error of an electronic circuit transmission process is increased, and the transmitter can only adopt magnetic steel, an inductance coil and other modes, so that the mode is extremely easy to be interfered by human beings and the environment, and has low precision and poor stability. In addition, because the wireless transceiving system is additionally arranged on the water meter body, the lithium battery is required to be used as an energy guarantee, but the problem of continuous replacement of the lithium battery is brought due to the influence of various factors such as the quality, the performance, the service life and the volume of the lithium battery, so that the intelligent water meter of the internet of things is difficult to be widely applied and is not suitable for social progress and actual demands of products.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide a teletransmission intelligence electronic water meter, its technical problem that will solve is: how to improve the accuracy of water quantity data remote transmission.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a teletransmission intelligence electron water gauge, including install the generator in the water gauge pipeline and with the data transmission control module that the generator electricity is connected, data transmission control module include lithium cell, battery charging circuit, control circuit, wireless communication circuit, be used for gathering the pulse acquisition circuit of generator electricity generation in-process pulse wave number of times and with the rectifier circuit that the generator is connected, rectifier circuit passes through battery charging circuit and is connected with the lithium cell, battery charging circuit still is connected with voltage acquisition circuit, pulse acquisition circuit, voltage acquisition circuit and wireless communication circuit all are connected with control circuit, still be connected with the switch circuit who is used for controlling whether wireless communication circuit gets electric work between control circuit and wireless communication circuit's the feeder end, switch circuit still connects lithium cell and battery charging circuit respectively, control circuit is used for the pulse wave number of times and the electric work that voltage acquisition circuit gathered pulse acquisition circuit gathers, control circuit is used for the pulse wave number of times and the electric work that voltage acquisition circuit gathered The pressure value is processed and then converted into water volume data flowing through the pipeline, and the data is remotely transmitted through a wireless communication circuit.

This teletransmission intelligence electronic water meter is when using, at first install the generator in the water gauge pipeline, when the user water consumption, the generator generates electricity after rivers promote, the electric energy of production obtains stable direct current after passing through rectifier circuit rectification processing, later charge for the lithium cell through battery charging circuit, with this work electric energy that obtains whole data transmission control module, in the course of the work, the generator constantly charges for the lithium cell, the lithium cell replacement problem has been solved, avoided the lithium cell because long-time work leads to the electric quantity to exhaust, influence the problem of water gauge measurement, real-time teletransmission monitoring for the water consumption provides the electric energy guarantee. When the generator works, the pulse acquisition circuit acquires the pulse wave frequency of the generator in real time and sends the pulse wave frequency signal to the control circuit, the voltage acquisition circuit acquires the voltage signal output by the rectifying circuit and sends the voltage signal to the control circuit, the control circuit processes the pulse wave frequency signal and the voltage signal and converts the processed signals into water quantity parameters flowing through a pipeline, then the control circuit controls the switch circuit to be closed, so that the wireless communication circuit is powered on to enter a working state, the water quantity parameters calculated in real time are transmitted to the management platform through the wireless communication circuit, the real-time monitoring of water consumption conditions of each household by managers is facilitated, after the wireless communication is completed, the control circuit can control the switch circuit to be opened, so that the wireless communication circuit can enter the working state when needed, the electric energy saving effect can be effectively achieved, the acquisition of water quantity data is facilitated, and the pulse wave frequency of the generator is acquired, the pulse wave times are regular and standard, electronic data is output by the water meter after calculation and conversion processing, conversion is not needed, influence and interference of other external devices are avoided, the accuracy of the water quantity data transmitted remotely is high, the stability is good, and the accuracy of the water quantity data transmitted remotely is effectively improved.

In the above remote intelligent electronic water meter, the generator adopts a three-phase micro generator with an inductance coil skeleton made of a non-magnetic material, the pulse acquisition circuit comprises a diode D5, a resistor R12 and a resistor R13, the anode of the diode D5 is connected with the W of the generator, the cathode of the diode D5 is connected with one end of a resistor R12, the other end of the resistor R12 is connected with one end of a control circuit and one end of a resistor R13 respectively, the other end of the resistor R13 is connected with a connection point where the anode of a diode D6, the anode of a diode D7 and the anode of a diode D8 in a rectification circuit are connected, and the control circuit is used for receiving positive and negative full-cycle waveforms output by the generator through the diode D5 and the resistor R12 and processing the positive and negative full-cycle waveforms. Preferably, a diode D10 is further connected between the connection point of the lithium battery and the battery charging circuit and the connection point of the resistor R12 and the resistor R13, the anode of the diode D10 is connected to the connection point of the resistor R12 and the resistor R13, and the cathode of the diode D10 is connected to the connection point of the lithium battery and the battery charging circuit.

The generator adopts a generator with an inductance coil framework made of a non-magnetic conductive material, and a coil is wound on the non-magnetic conductive material, so that the phenomenon that magnetic steel on an impeller and the coil framework generate suction to influence the rotating speed is avoided, water flow pushes the impeller to rotate, and the coil cuts magnetic lines of force generated by the magnetic steel on the impeller to generate electricity; the positive pole of a diode D5 in the pulse acquisition circuit is connected with W of the generator, the negative pulse of a three-phase power V, U, W reaches the ground end through a rectification circuit, alternating current output by the generator is loaded on a diode D5 of the pulse acquisition circuit, positive and negative full-period waveforms output by the generator are converted into positive phase pulses of two multiples, the negative pole of a diode D5 is connected with one end of a resistor R12, the other end of the resistor R12 is respectively connected with a control circuit and one end of a resistor R13 for amplitude reduction, and the positive phase pulses clamped by a diode D10 are connected to the control circuit for driving, so that sine waves are converted into standard metering square waves, cut-off distortion and saturation distortion in the sine waves are eliminated, and the metering precision is improved.

In the remote intelligent electronic water meter, the rectification circuit comprises a diode D1, a diode D6, a diode D2, a diode D7, a diode D3 and a diode D8, a cathode of the diode D1, a cathode of the diode D2 and a cathode of the diode D3 are connected and then connected with a battery charging circuit, an anode of the diode D1 is connected with a cathode of the diode D6 and connected with a U-phase of the three-phase microgenerator, an anode of the diode D2 is connected with a cathode of the diode D7 and connected with a V-phase of the three-phase microgenerator, an anode of the diode D3 and a cathode of the diode D8 are connected and connected with a W-phase of the three-phase microgenerator, and an anode of the diode D6, an anode of the diode D7 and an anode of the diode D8 are all grounded. When a faucet of a water pipe is opened, water flow pushes blades of the generator to rotate through the pipe, the generator outputs U, V, W three-phase alternating current with 120-degree phase, and the alternating current is rectified by the rectifying circuit to obtain uninterrupted direct current, and the direct current has higher efficiency than that of single-phase full-bridge rectification and is uninterrupted.

In the above remote intelligent electronic water meter, the battery charging circuit includes a voltage-reducing chip U2, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R9, a resistor R11 and a charging chip U1, an input pin of the voltage-reducing chip U2 is connected to an anode of the capacitor C8 and a rectifying circuit, an output pin of the voltage-reducing chip U2 is connected to an anode of the capacitor C9, an anode of the capacitor C10, one end of the resistor R9 and a 5 pin of the charging chip U1, a cathode of the capacitor C9 and a cathode of the capacitor C10 are both grounded, the other end of the resistor R9 is connected to a pin 1 of the charging chip U1, a pin 4 of the charging chip U1 is grounded after being connected to a resistor R11, a pin 3 of the charging chip U1 is connected to an anode of a lithium battery, and a pin 2 of the charging chip U1 is grounded. Direct current after the rectification of rectifier circuit passes through the input after the filtering of electric capacity C8 and gives step-down chip U2, exports for the chip that charges after step-down through step-down chip U2 step-down, charges for the lithium cell through the chip that charges, and electric capacity C9 and electric capacity C10 that wherein step-down chip U2 output is connected play the effect of filtering, provide the barrier for the stable charging of lithium cell.

In the above-mentioned teletransmission intelligent electronic water meter, the battery charging circuit still includes resistance R16, electric capacity C15, electric capacity C12 and electric capacity C13, the one end of resistance R16 is connected with step-down chip U2's input foot, electric capacity C15, electric capacity C12 and electric capacity C13 back ground connection are connected in series in proper order to resistance R16's the other end. Preferably, the capacitor C15, the capacitor C12 and the capacitor C13 all adopt farad capacitors, in the circuit, the capacitor C15, the capacitor C12 and the capacitor C13 are arranged, direct current coming from the rectifying circuit charges the lithium battery through the charging chip U1 and also charges the capacitor C15, the capacitor C12 and the capacitor C13, and after the output of the generator is stopped, the capacitor C15, the capacitor C12 and the capacitor C13 can continuously output electric energy and charge the charging chip U1 through the voltage reduction chip U2, so that the lithium battery is continuously charged, and the functions of prolonging the charging and ensuring the driving are achieved.

In the above-mentioned teletransmission intelligent electronic water meter, the switch circuit includes MOS pipe Q1, MOS pipe Q2, resistance R14, electric capacity C16 and electric capacity C18, 3 feet of MOS pipe Q1 are connected with wireless communication circuit's feed end, 2 feet of MOS pipe Q1 are connected resistance R14's one end, electric capacity C16's positive pole, the positive pole of lithium cell and the 3 feet of chip U1 that charges respectively, electric capacity C16's negative pole is connected the back ground connection with electric capacity C18, MOS pipe Q1's 1 foot is connected 3 feet of MOS pipe Q2 and the other end of resistance R14 respectively, MOS pipe Q2's 1 foot is connected through resistance R15 and control circuit's output, MOS pipe Q2's 2 feet ground connection. When remote transmission is needed, the control circuit outputs high level to control the MOS tube Q2 to be conducted, so that the MOS tube Q1 is conducted, electric energy generated by the charging chip U1 or electric energy output by the lithium battery provides electric energy for the wireless communication circuit through the conducted MOS tube Q1, and the wireless communication circuit is enabled to be powered on to realize data transmission.

In foretell teletransmission intelligence electronic water meter, voltage acquisition circuit includes resistance R8 and resistance R10, battery charging circuit is connected to resistance R8 and resistance R10 series connection back one end, and the other end ground connection, resistance R8 and resistance R10's tie point are connected with control circuit's input. Preferably, a diode D9 is further connected to a connection point of the resistor R8 and the resistor R10, an anode of the diode D9 is connected to a connection point of the resistor R8 and the resistor R10, and a cathode of the diode D9 is connected to a connection point of the lithium battery and the battery charging circuit.

In foretell teletransmission intelligence electronic water meter, control circuit includes control chip IC1 and electric capacity C1, 3 feet and switch circuit connection of control chip IC1, 7 feet and the pulse acquisition circuit of control chip IC1 are connected, 8 feet and the voltage acquisition circuit of control chip IC1 are connected, 2 feet and lithium cell and battery charging circuit's tie point of control chip IC1 are connected, electric capacity C1's positive pole is still connected to 2 feet of control chip IC1, electric capacity C1's negative pole ground connection, 5 feet and 6 feet of control chip IC1 all are connected with wireless communication circuit.

In foretell teletransmission intelligence electronic water meter, wireless communication circuit include wireless chip IC3, resistance R1, resistance R3 and resistance R6 and with the phone card chip IC2 that wireless chip IC3 connects, 1 foot of wireless chip IC3 is connected with control chip IC 1's 5 feet through resistance R1, 2 feet of wireless chip IC3 are connected with control chip IC 1's 6 feet through resistance R3, 2 feet of wireless chip IC3 still are connected the back ground connection with resistance R6, 28 feet of wireless chip IC3 still are connected with antenna P1 and electric capacity C3. The wireless chip IC3 can transmit the water quantity parameters transmitted by the control circuit to the management platform through the antenna P1, so that the management platform can acquire the water consumption condition of each user in real time.

In the above remote intelligent electronic water meter, the remote intelligent electronic water meter further comprises a display screen, and the display screen is connected with the control circuit in the data transmission control module.

Compared with the prior art, this teletransmission intelligence electronic water meter has following advantage:

1. the utility model discloses a set up in the generator of water pipe department, make the user when the water use, can realize independently generating electricity, guarantee when water yield data teletransmission and demonstration, have sufficient electric energy to supply to use, thereby do not worry that the lithium cell exhausts the problem that influences water yield detection real-time and accuracy, effectively guaranteed the real-time supervision of water yield.

2. The utility model discloses a wireless communication circuit's work is controlled by switch circuit, opens when needs teletransmission, can realize closing when not needing, has effectively practiced thrift the electric energy of water gauge, avoids long-time power supply, consumes unnecessary electric energy, has effectively practiced thrift the energy.

3. The utility model discloses a pulse wave acquisition circuit real-time detection generator W looks pulse wave number of times and through the voltage value after the voltage acquisition circuit real-time collection passes through the three-phase rectification, control circuit then handles and then converts according to pulse wave number of times and voltage value and obtains the water yield parameter that flows through the water pipe, the water yield calculates the accuracy, can carry out direct transmission with the water yield parameter that obtains when the teletransmission, avoid environment and artificial interference, the accuracy height and the stability of teletransmission data are good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the circuit structure of the present invention.

In the figure, 1, a generator; 2. a data transmission control module; 21. a rectifying circuit; 22. a battery charging circuit; 23. a lithium battery; 24. a pulse acquisition circuit; 25. a control circuit; 26. a wireless communication circuit; 27. a voltage acquisition circuit; 28. a switching circuit; 3. a display screen.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in figure 1, the remote transmission intelligent electronic water meter comprises a generator 1 installed in a water meter pipeline, a data transmission control module 2 electrically connected with the generator 1 and a display screen 3 connected with the data transmission control module 2, wherein the display screen 3 is used for displaying accumulated water consumption and is convenient for a user to check in real time, the data transmission control module 2 comprises a lithium battery 23, a battery charging circuit 22, a control circuit 25, a wireless communication circuit 26, a pulse acquisition circuit 24 used for acquiring the number of times of pulse waves in the power generation process of the generator 1 and a rectifying circuit 21 connected with the generator 1, the rectifying circuit 21 is connected with the lithium battery 23 through the battery charging circuit 22, the battery charging circuit 22 is further connected with a voltage acquisition circuit 27, the pulse acquisition circuit 24, the voltage acquisition circuit 27 and the wireless communication circuit 26 are all connected with the control circuit 25, and a switch circuit 28 used for controlling whether the wireless communication circuit 26 is powered on or not is further connected between the control circuit 25 and the power supply end of the wireless communication circuit 26 The switch circuit 28 is also connected to the lithium battery 23 and the battery charging circuit 22, respectively.

As shown in fig. 2, when the remote intelligent electronic water meter is applied, the generator 1 is placed at the water outlet of a natural water pipe, in this embodiment, the generator 1 adopts a miniature three-phase generator 1, three phases of the generator 1 are all connected with a rectification circuit 21 in a data transmission control module 2, the rectification circuit 21 includes a diode D1, a diode D6, a diode D2, a diode D7, a diode D3 and a diode D8, a cathode of a diode D1, a cathode of a diode D2 and a cathode of the diode D3 are connected and then connected with an input pin of a voltage reduction chip U2 in a battery charging circuit 22, an anode of a diode D1 is connected with a cathode of a diode D6 and connected with a U-phase of the generator 1, an anode of a diode D2 is connected with a cathode of a diode D7 and connected with a V-phase of the generator 1, an anode of the diode D3 and a cathode of the diode D8 are connected with a W-phase of the generator 1, and an anode of a diode D6, and a cathode of the diode D6 are connected with a W-phase of the generator 1, The anode of the diode D7 and the anode of the diode D8 are both grounded, the W phase of the generator 1 is further connected to the anode of the diode D5 in the pulse acquisition circuit 24, the cathode of the diode D5 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to the pin 7 of the control chip IC1 in the control circuit 25, the anode of the diode D10 and one end of the resistor R13, the other end of the resistor R13 is connected to a connection point where the anode of the diode D6, the anode of the diode D7 and the anode of the diode D8 in the rectification circuit 21 are connected, and the cathode of the diode D10 is connected to a connection point of the lithium battery 23 and the battery charging circuit 22.

The battery charging circuit 22 further comprises a capacitor C2, a capacitor R2, a resistor R2, a charging chip U2, a resistor R2, a capacitor C2 and a capacitor C2, wherein an input pin of the voltage-reducing chip U2 is connected with an anode of the capacitor C2 and one end of the resistor R2, the other end of the resistor R2 is connected with an anode of the capacitor C2, a cathode of the capacitor C2 is grounded after a cathode of the capacitor C2 is connected with the anode of the capacitor C2, an output pin of the voltage-reducing chip U2 is connected with the anode of the capacitor C2, one end of the resistor R2 and a pin 5 of the charging chip U2, the cathode of the capacitor C2 and the cathode of the charging chip U2 are grounded, the other end of the resistor R2 is connected with a VCC 1 of the charging chip U2, and a charging pin 363 of the charging chip U2 is connected with a charging pin of the lithium battery. The charging circuit is used for being connected with a pin 2 of the control chip IC1 to supply power to the control chip IC1, and a pin 2 of the charging chip U1 is grounded. The power supply voltage VCC is also connected with the cathode of a diode D10 and the cathode of a diode D9, the anode of a diode D9 is connected with a connection point where a resistor R8 and a resistor R10 in a voltage acquisition circuit 27 are connected, the unconnected end of a resistor R8 is connected with an input pin of a buck chip U2, the unconnected end of a resistor R10 is grounded, the connection point where a resistor R8 and a resistor R10 are connected is connected with an 8 pin of a control chip IC1, a 3 pin of the control chip IC1 is connected with one end of a resistor R15 in a switch circuit 28, the other end of a resistor R15 is connected with a 1 pin of a MOS transistor Q2, a 2 pin of a MOS transistor Q2 is grounded, a 3 pin of the MOS transistor Q9 is respectively connected with a 1 pin of a MOS transistor Q1 and one end of a resistor R14, a 3 pin of the MOS transistor Q1 is connected with a 24 pin and a 25 pin of a wireless chip IC3 in a wireless communication circuit 26, and a 2 pin of the MOS transistor Q1 is respectively connected with the anode of a resistor R14, a cathode of a capacitor R14, a charging pin of a lithium battery chip U1 and a lithium battery chip 1, the negative pole of the capacitor C16 is connected with the capacitor C18 and then grounded, the pin 2 of the control chip IC1 is connected with the positive pole of the capacitor C1, the negative pole of the capacitor C1 is grounded, the pins 5 and 6 of the control chip IC1 are both connected with the wireless communication circuit 26, and the pin 1 of the control chip IC1 is connected with the display screen 3.

The wireless communication circuit 26 includes a wireless chip IC3, a resistor R1, a resistor R3, and a resistor R6, and a phone card chip IC2 connected to the wireless chip IC3, the 11 pin of the wireless chip IC3 is connected with the 8 pin of the telephone card chip IC2, the 12 pin of the wireless chip IC3 is connected with the 6 pin of the telephone card chip IC2 through a resistor R5, the 13 pin of the wireless chip IC3 is connected with the 7 pin of the telephone card chip IC2 through a resistor R2, the 10 pin of the wireless chip IC3 is connected with the 2 pin and the 3 pin of the telephone card chip IC2 through a resistor R7, the 8 pin of the wireless chip IC3 is connected with the 1 pin of the telephone card chip IC2, a capacitor C2 is further connected between the 1 pin and the 8 pin of the telephone card chip IC2, a capacitor C6 is further connected between the 1 pin and the 7 pin of the telephone card chip IC2, a capacitor C5 is further connected between the 1 pin and the 6 pin of the telephone card chip IC2, and a capacitor C4 is further connected between the 1 pin and the 2 pin of the telephone card chip IC 2. The pin 1 of the wireless chip IC3 is connected with the pin 5 of the control chip IC1 through a resistor R1, the pin 2 of the wireless chip IC3 is connected with the pin 6 of the control chip IC1 through a resistor R3, the pin 2 of the wireless chip IC3 is also connected with a resistor R6 and then grounded, and the pin 28 of the wireless chip IC3 is connected with an antenna P1 and then grounded and is connected with a capacitor C3 and then grounded.

In the embodiment, the voltage reduction chip U2 adopts a chip with the model of ASM117-5, the charging chip U1 adopts a chip with the model of SE9016, the control chip IC1 adopts a chip with the model of STC8G1K08A-SOP8, and the wireless chip IC3 adopts a chip with the model of M5310.

The working principle is as follows: in this embodiment, the generator 1 is a three-phase micro generator with an inductance coil framework adopting a non-magnetic-conductive material, the three-phase micro generator is an existing generator, a coil is wound on the non-magnetic-conductive material, when a tap of a water pipe is opened, water flow pushes an impeller to rotate, and the coil cuts magnetic lines of force generated by magnetic steel on the impeller to generate electricity; the generator 1 outputs U, V, W three-phase alternating current with 120-degree phase to the rectifying circuit 21, the rectifying circuit 21 rectifies the alternating current to obtain uninterrupted direct current, the direct current has higher efficiency than single-phase rectified direct current and is uninterrupted, then the direct current charges the capacitor C15, the capacitor C12 and the capacitor C13, in the embodiment, the capacitor C15, the capacitor C12 and the capacitor C13 are farad capacitors, and in the charging process, the direct current is subjected to voltage reduction through the voltage reduction chip U2 and then charges the lithium battery 23 through the charging chip U1.

Meanwhile, alternating current output by the generator 1 is loaded on a diode D5 of the pulse acquisition circuit 24, positive and negative full-period waveforms output by the generator 1 are converted into positive phase pulses of two times, the negative electrode of the diode D5 is connected with one end of a resistor R12, the other end of the resistor R12 is respectively connected with one end of a control circuit 25 and one end of a resistor R13 for amplitude reduction, and the positive phase pulses clamped by a diode D10 are connected to a pin 7 of a control chip IC1 for driving, so that sine waves are converted into standard metering square waves, cut-off distortion and saturation distortion in the sine waves are eliminated, and metering accuracy is improved; the voltage acquisition circuit 27 acquires voltage division signals of the resistor R8 and the resistor R10 in real time and transmits the voltage division signals to the control chip IC1, and the control chip IC1 performs integration and water quantity conversion processing on the standard metering square waves and the voltage division signals so that metering is converted into data of 0-2048. This conversion technique is conventional, and the control chip IC1 used therein will not be described in detail here. When a user uses water, the control chip IC1 controls the MOS tube Q2 in the switch circuit 28 to be conducted, so that the MOS tube Q1 is conducted, the power supply voltage VCC is further conducted with the power supply circuit of the pin of the wireless chip IC325, and the wireless communication circuit 26 is awakened to enter a sending state. After the control chip IC1 calculates and obtains the water quantity data, one path of the data sends the calculated water quantity, battery voltage and other parameters to the management platform in real time through the wireless communication circuit 26, the management platform can be a PC arranged at the property place, a user's mobile intelligent device, such as a mobile phone, a tablet and the like, the wireless communication circuit 26 has duplex communication capability, and can receive instruction information sent back by the management platform, such as control instructions of remote setting, modification of the receiving and sending frequency of the water meter, receiving and sending intervals and the like, which are prior art, and are not described in detail herein, such application can meet the actual use requirements of the outside on the information at any time, and the metering, monitoring and remote transmission functions of the intelligent remote transmission electronic water meter are realized; and the other path is sent to the display screen 3 to display the accumulated water consumption of the water meter for the user to check, and in order to save electric energy, the display screen 3 has the functions of triggering and regularly displaying, so that unnecessary energy consumption caused by long-time display can be avoided, and energy conservation is realized.

When the generator 1 stops working, the farad capacitor C15, the capacitor C12 and the capacitor C13 continuously output the voltage through the voltage reduction chip U2 to the charging chip U1, so that the lithium battery is continuously charged, and the remote transmission intelligent electronic water meter can normally work in the environment with less charging and more electricity.

The utility model discloses a generator 1 output electric energy charges lithium cell 23, adopts a plurality of farad electric capacity in the circuit, has played the extension and has charged and ensure driven effect, moreover the utility model discloses when needs remote transmission, control chip IC1 just controls wireless communication circuit 26's shop, then control wireless communication circuit 26 realizes communication, in time closes wireless communication circuit 26 after the communication is accomplished, because wireless communication circuit 26 needs stable current power, the electric energy that generator 1 produced can provide reliable energy for wireless communication, makes the communication reliability higher.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A remote transmission intelligent electronic water meter comprises a generator (1) installed in a water meter pipeline and a data transmission control module (2) electrically connected with the generator (1), and is characterized in that the data transmission control module (2) comprises a lithium battery (23), a battery charging circuit (22), a control circuit (25), a wireless communication circuit (26), a pulse acquisition circuit (24) used for acquiring the pulse wave frequency in the power generation process of the generator (1) and a rectifying circuit (21) connected with the generator (1), the rectifying circuit (21) is connected with the lithium battery (23) through the battery charging circuit (22), the battery charging circuit (22) is further connected with a voltage acquisition circuit (27), and the pulse acquisition circuit (24), the voltage acquisition circuit (27) and the wireless communication circuit (26) are all connected with the control circuit (25), still be connected with switch circuit (28) that is used for controlling whether wireless communication circuit (26) circular telegram work between control circuit (25) and wireless communication circuit's (26) power supply end, switch circuit (28) still connect lithium cell (23) and battery charging circuit (22) respectively, control circuit (25) are used for handling the pulse wave number of times that pulse acquisition circuit (24) gathered and the voltage value that voltage acquisition circuit (27) gathered and then convert into the water yield data that flow through the pipeline and carry out the teletransmission through wireless communication circuit (26).

2. The remote intelligent electronic water meter as claimed in claim 1, wherein the generator (1) is a three-phase micro-generator with an inductance coil skeleton made of non-magnetic materials, the pulse acquisition circuit comprises a diode D5, a resistor R12 and a resistor R13, the anode of the diode D5 is connected with the W of the generator, the cathode of the diode D5 is connected with one end of a resistor R12, the other end of the resistor R12 is respectively connected with a control circuit (25) and one end of a resistor R13, the other end of the resistor R13 is connected with a connection point where the anode of a diode D6, the anode of a diode D7 and the anode of a diode D8 in the rectification circuit (21) are connected, and the control circuit (25) is used for receiving and processing the positive and negative full-cycle waveforms output by the generator (1) through the diode D5 and the resistor R12.

3. The remote intelligent electronic water meter as claimed in claim 2, wherein the rectification circuit (21) comprises a diode D1, a diode D6, a diode D2, a diode D7, a diode D3 and a diode D8, the cathode of the diode D1, the cathode of the diode D2 and the cathode of the diode D3 are connected with the battery charging circuit (22), the anode of the diode D1 is connected with the cathode of the diode D6 and the U-phase of the three-phase microgenerator, the anode of the diode D2 is connected with the cathode of the diode D7 and the V-phase of the three-phase microgenerator, the anode of the diode D3 and the cathode of the diode D8 are connected and the W-phase of the three-phase microgenerator, and the anodes of the diode D6, the diode D7 and the diode D8 are all grounded.

4. The remote intelligent electronic water meter as claimed in claim 1, 2 or 3, wherein the battery charging circuit (22) comprises a voltage-reducing chip U2, a capacitor C8, a capacitor C9, a capacitor C10, a resistor R9, a resistor R11 and a charging chip U1, an input pin of the voltage-reducing chip U2 is respectively connected with an anode of the capacitor C8 and the rectifying circuit (21), an output pin of the voltage-reducing chip U2 is respectively connected with an anode of the capacitor C9, an anode of the capacitor C10, one end of the resistor R9 and a 5 pin of the charging chip U1, a cathode of the capacitor C9 and a cathode of the capacitor C10 are both grounded, the other end of the resistor R9 is connected with a 1 pin of the charging chip U1, a 4 pin of the charging chip U1 is grounded after being connected with a resistor R11, a 3 pin of the charging chip U1 is connected with an anode of the lithium battery (23), and a 2 pin of the charging chip U1 is grounded.

5. The remote intelligent electronic water meter as claimed in claim 4, wherein the battery charging circuit (22) further comprises a resistor R16, a capacitor C15, a capacitor C12 and a capacitor C13, one end of the resistor R16 is connected with an input pin of the voltage reduction chip U2, and the other end of the resistor R16 is sequentially connected with the capacitor C15, the capacitor C12 and the capacitor C13 in series and then grounded.

6. The remote intelligent electronic water meter as claimed in claim 5, wherein the switch circuit (28) comprises a MOS transistor Q1, a MOS transistor Q2, a resistor R14, a capacitor C16 and a capacitor C18, wherein 3 pins of the MOS transistor Q1 are connected to the power supply terminal of the wireless communication circuit (26), 2 pins of the MOS transistor Q1 are respectively connected to one end of the resistor R14, the anode of the capacitor C16, the anode of the lithium battery (23) and the 3 pin of the charging chip U1, the cathode of the capacitor C16 is connected to the capacitor C18 and then grounded, 1 pin of the MOS transistor Q1 is respectively connected to the 3 pin of the MOS transistor Q2 and the other end of the resistor R14, 1 pin of the MOS transistor Q2 is connected to the output terminal of the control circuit (25) through the resistor R15, and 2 pins of the MOS transistor Q2 are grounded.

7. The remote intelligent electronic water meter as claimed in claim 1, 2 or 3, wherein the voltage acquisition circuit (27) comprises a resistor R8 and a resistor R10, the resistor R8 and the resistor R10 are connected in series, one end of the resistor R8 is connected to the battery charging circuit (22), the other end of the resistor R10 is grounded, and the connection point of the resistor R8 and the resistor R10 is connected to the input end of the control circuit (25).

8. The remote intelligent electronic water meter according to claim 1, 2 or 3, wherein the control circuit (25) comprises a control chip IC1 and a capacitor C1, pin 3 of the control chip IC1 is connected with the switch circuit (28), pin 7 of the control chip IC1 is connected with the pulse acquisition circuit (24), pin 8 of the control chip IC1 is connected with the voltage acquisition circuit (27), pin 2 of the control chip IC1 is connected with the connection point of the lithium battery (23) and the battery charging circuit (22), pin 2 of the control chip IC1 is also connected with the positive electrode of the capacitor C1, the negative electrode of the capacitor C1 is grounded, and pin 5 and pin 6 of the control chip IC1 are both connected with the wireless communication circuit (26).

9. The remote intelligent electronic water meter as claimed in claim 8, wherein the wireless communication circuit (26) comprises a wireless chip IC3, a resistor R1, a resistor R3, a resistor R6 and a phone card chip IC2 connected with the wireless chip IC3, wherein a pin 1 of the wireless chip IC3 is connected with a pin 5 of the control chip IC1 through a resistor R1, a pin 2 of the wireless chip IC3 is connected with a pin 6 of the control chip IC1 through a resistor R3, a pin 2 of the wireless chip IC3 is further connected with a resistor R6 and then grounded, and a pin 28 of the wireless chip IC3 is further connected with an antenna P1 and a capacitor C3.

10. A remote-transmission intelligent electronic water meter as claimed in claim 1, 2 or 3, further comprising a display screen (3), wherein the display screen (3) is connected with the control circuit (25) in the data transmission control module (2).