Water metering terminal

Abstract

The utility model relates to the technical field of metering, and discloses a water metering terminal. The water metering terminal comprises a memory, a liquid crystal display, a communication module, a main control chip, a metering chip and an analog switch; the main control chip is used for sending meter reading data to the metering chip; the metering chip is used for receiving meter reading data and then transmitting ultrasonic signals to the analog switch, and the analog switch receives and distributes ultrasonic waves to the transducers and receives echo signals output by the transducers; the metering chip is also used for generating metering data according to the echo signal transmitted by the analog switch, and the main control chip is also used for receiving the metering data and generating water consumption data; the memory is used for storing data of the main control chip, the communication module is used for uploading water consumption data generated by the main control chip to a background, and the liquid crystal display is used for displaying the water consumption data. According to the utility model, the water consumption data of a plurality of pipe sections can be monitored and generated, the performance is improved, and the implementation cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metering, in particular to a water metering terminal. Background Art

[0002] With the development of economy, the demand for water resources in various industries is increasing. Therefore, the measurement of water resources is becoming more and more important, and the requirements for the reliability of flow meters are becoming more and more stringent.

[0003] With the advancement of new measurement and sensing technologies, water metering terminals are a new type of metering terminal that detects the time difference caused by the change in speed when the ultrasonic sound beam propagates downstream and upstream in the water, analyzes and processes the water flow rate, and further calculates the water flow rate. Due to its small flow detection capability, it is more suitable for the conservation and rational use of water resources and has a broad market and use prospects. At present, each water metering terminal is equipped with a metering chip and a main control chip, which are only used to monitor a single pipe section, resulting in a waste of the functions of the metering chip and the main control chip. Utility Model Content

[0004] In view of this, the utility model provides a water metering terminal to solve the problem of functional waste of a metering chip and a main control chip of the water metering terminal.

[0005] The utility model provides a water metering terminal, comprising:

[0006] A main control chip, comprising a first communication interface, the main control chip is connected to a second communication interface of the metering chip through the first communication interface, the main control chip is used to send meter reading information to the metering chip through the first communication interface, and the metering chip is used to send an ultrasonic signal after receiving the meter reading information through the second communication interface;

[0007] The metering chip also includes a first ultrasonic interface, through which the metering chip is connected to a second ultrasonic interface of the analog switch, and the metering chip is used to transmit the ultrasonic signal to the second ultrasonic interface through the first ultrasonic interface;

[0008] The analog switch also includes an ultrasonic transmission interface and an ultrasonic receiving interface. The analog switch is connected to a plurality of transducers. The analog switch is used to distribute ultrasonic waves to the plurality of transducers through the ultrasonic transmission interface. The plurality of transducers are used to generate echo signals after receiving ultrasonic waves through receiving pins, and are used to transmit the echo signals to the ultrasonic receiving interface through the transmitting pins.

[0009] The metering chip is also used to generate metering data according to the echo signal, and to transmit the metering data to the main control chip through the second communication interface;

[0010] The main control chip is also used to receive metering data through the first communication transmission interface, and to generate water usage data according to the metering data.

[0011] The metering chip used in the utility model can be connected to multiple transducers through analog switches, and the transducers are connected to water pipes. The metering chip can measure multiple pipe sections by sending and receiving ultrasonic waves, and transmit the metering data of multiple pipe sections to the main control chip; the main control chip is used to send meter reading signals to the metering chip, control the metering chip to send ultrasonic signals, start metering, and also receive metering data to calculate water consumption data, which is the water flow velocity and instantaneous flow rate of each pipe section. The water consumption metering terminal of the utility model is complete in design, can connect and monitor multiple pipe sections, and supports data display and data communication transmission.

[0012] In an optional implementation, the water metering terminal further includes a memory, which is connected to the main control chip and is used to store data of the main control chip.

[0013] The memory is used to store the water usage data generated by the main control chip.

[0014] In an optional implementation, the water metering terminal further includes a liquid crystal display, which is connected to the main control chip and is used to display water usage data.

[0015] The liquid crystal display is connected to the main control chip to display the water flow velocity and instantaneous flow rate of each pipe section in real time.

[0016] In an optional implementation, the water metering terminal further includes a communication module, which is connected to the main control chip and is used to upload the water usage data generated by the main control chip to the server.

[0017] The communication module is connected to the main control chip and can upload water flow speed and instantaneous flow data to the server.

[0018] In an optional implementation, the model of the main control chip is a TDC series time measurement chip.

[0019] The utility model uses the TDC series time measurement chip as the main control chip. This series of chips can communicate data with the metering chip and also has additional pins to connect external devices such as memory and liquid crystal display. It has communication function and can transmit data to the platform or other devices. The internal integrated algorithm can calculate the metering data of the metering chip to obtain water flow velocity and instantaneous flow data.

[0020] In an optional implementation, the model of the metering chip is an MS series ultrasonic ranging chip.

[0021] The utility model uses the MS series ultrasonic distance measurement chip as the metering chip. The series chip can emit ultrasonic waves, receive echo signals and calculate time difference data as metering data according to the echo signals; it has a second communication interface and can transmit the metering data to the main control chip.

[0022] In an optional implementation, the model of the analog switch is an SGM series analog switch.

[0023] The utility model uses the SGM series analog switch as the analog switch, which can receive the ultrasonic wave emitted by the metering chip and distribute the ultrasonic wave to a plurality of transducers; at the same time, there are pins for receiving echo signals, which transmit the ultrasonic wave signals emitted by a plurality of transducers to the metering chip, so that the metering chip can calculate the time difference data to obtain the metering data.

[0024] In an optional implementation, the first communication interface of the main control chip includes a PA03 pin, a PF04 pin, a PF05 pin, a PA04 pin, a PA06 pin, and a PA07 pin;

[0025] The second communication interface of the metering chip includes an INTN pin, an SSN pin, an SCK pin, an SI pin, an SO pin, and an RSTN pin;

[0026] The INTN pin is connected to the PA07 pin, the SSN pin is connected to the PA06 pin, the SCK pin is connected to the PA04 pin, the SI pin is connected to the PF05 pin, the SO pin is connected to the PF04 pin, and the RSTN pin is connected to the PA03 pin.

[0027] In this embodiment, a communication connection is established between the main control chip 1 and the metering chip 2 through the first communication interface and the second communication interface. The main control chip 1 transmits the meter reading data to the metering chip 2, and the metering chip 2 transmits the metering data to the main control chip 1 through the communication connection.

[0028] In an optional implementation, the first ultrasonic interface of the metering chip includes a Fire_UP pin and a Fire_DN pin;

[0029] The second ultrasonic interface of the analog switch includes a Y pin and an X pin;

[0030] The Y pin is connected to the Fire_UP pin and the X pin is connected to the Fire_DN pin.

[0031] In an optional implementation, the ultrasonic transmission interface of the analog switch includes a Y1 pin, a Y2 pin, and a Y3 pin, and the Y1 pin, the Y2 pin, and the Y3 pin are respectively connected to the receiving pins of a plurality of transducers;

[0032] The ultrasonic receiving interface of the analog switch includes an X1 pin, an X2 pin and an X3 pin, and the X1 pin, the X2 pin and the X3 pin are respectively connected to the transmitting pins of a plurality of transducers.

[0033] According to the actual usage scenario, the ultrasonic transmitting interface can be connected to the receiving pins of at most three groups of transducers to transmit the ultrasonic signal to the corresponding transducers; at the same time, at most three groups of transducers receive the ultrasonic wave and generate echo signals through the transmitting pins, and the echo signals will be transmitted to the corresponding ultrasonic receiving interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 This is a structural schematic diagram of a water metering terminal of the utility model;

[0036] Figure 2 It is a structural schematic diagram of the main control chip of the utility model;

[0037] Figure 3 It is a structural schematic diagram of the memory of the utility model;

[0038] Figure 4 It is a structural schematic diagram of a liquid crystal display of the utility model;

[0039] Figure 5 It is a structural schematic diagram of the metering chip of the utility model;

[0040] Figure 6 It is a structural schematic diagram of the communication module of the utility model;

[0041] Figure 7 It is a structural schematic diagram of an analog switch of the utility model;

[0042] Figure 8 It is a structural schematic diagram of the transducer of the utility model. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0044] like Figure 1 As shown, the utility model provides a water metering terminal, comprising:

[0045] The main control chip 1 includes a first communication interface. The main control chip 1 is connected to the second communication interface of the metering chip 2 through the first communication interface. The main control chip 1 is used to send meter reading information to the metering chip 2 through the first communication interface. The metering chip 2 is used to start working after receiving the meter reading information through the second communication interface.

[0046] The metering chip 2 also includes a first ultrasonic interface. The metering chip 2 is connected to the second ultrasonic interface of the analog switch 3 through the first ultrasonic interface. The metering chip 2 is used to transmit the ultrasonic signal to the second ultrasonic interface through the first ultrasonic interface.

[0047] The analog switch 3 also includes an ultrasonic transmitting interface and an ultrasonic receiving interface. The analog switch 3 is connected to a plurality of transducers. The analog switch 3 is used to distribute ultrasonic waves to a plurality of transducers through the ultrasonic transmitting interface. The plurality of transducers are used to generate echo signals after receiving ultrasonic waves through receiving pins, and are used to transmit echo signals to the ultrasonic receiving interface through transmitting pins.

[0048] The metering chip 2 is also used to generate metering data according to the echo signal, and to transmit the metering data to the main control chip 1 through the second communication interface.

[0049] The main control chip 1 is also used to receive metering data through the first communication transmission interface, and to generate water usage data according to the metering data.

[0050] In this embodiment, the water metering terminal further includes a memory 4, which is connected to the main control chip 1 and is used to store data of the main control chip 1. Figure 2 and Figure 3 ,like Figure 2 As shown, the main control chip 1 includes a PC12 pin, a PD02 pin and a PB03 pin, the PC12 pin is a power pin of the main control chip, the PD02 pin is a clock pin of the main control chip, and the PB03 pin is a data pin of the main control chip; Figure 3As shown, the memory 4 includes a VCC pin, an SCL pin and an SDA pin, wherein the VCC pin is the power pin of the memory 4, the SCL pin is the clock pin of the memory 4, and the SDA pin is the data pin of the memory 4. The PC12 pin, the PD02 pin and the PB03 pin in the main control chip 1 are respectively connected to the VCC pin, the SCL pin and the SDA pin in the memory 4; the power pin and the PC12 pin in the main control chip 1 supply power to the power pin and the VCC pin of the memory 4, the clock pin and the PD02 pin in the main control chip 1 are synchronized with the clock pin and the SCL pin of the memory 4, and the data pin and the PB03 pin of the main control chip 1 transmit data to the memory 4 through the data pin and the SDA pin of the memory 4.

[0051] In this embodiment, the water consumption metering terminal further includes a liquid crystal display 5 , which is connected to the main control chip 1 and is used to display water consumption data.

[0052] The liquid crystal display 5 is connected to the main control chip 1 to display the water flow velocity and instantaneous flow rate of each pipe section in real time.

[0053] Combination Figure 2 and Figure 4 , the main control chip 1 in the utility model can be connected to multiple liquid crystal displays 5. This embodiment gives a specific example, the main control chip 1 is connected to three groups of liquid crystal displays 5; Figure 2 As shown, the main control chip 1 includes PF01 pin, PC00 pin, PC02 pin, PC03 pin, PB08 pin and PB09 pin, wherein PF01 pin, PC02 pin and PB08 pin are clock pins, and PC00 pin, PC03 pin and PB09 pin are data pins. Figure 3 As shown, each group of liquid crystal displays 5 includes an SCL pin and an SDA pin, the SCL pin is a clock pin, and the SDA pin is a data pin; the PF01 pin and the PC00 pin are respectively connected to the clock pin and the data pin of the first group of liquid crystal displays 5, the PC02 pin and the PC03 pin are respectively connected to the clock pin and the data pin of the second group of liquid crystal displays 5, and the PB08 pin and the PB09 pin are respectively connected to the clock pin and the data pin of the third group of liquid crystal displays 5. The water metering terminal in this embodiment can monitor three groups of pipe sections. After the main control chip 1 establishes a connection with the three groups of liquid crystal displays 5, the main control chip 1 transmits the water use data to the data pin of the corresponding liquid crystal display 5 through the data pins of each group of main control chips 1, and each group of liquid crystal displays 5 displays the water use data of the corresponding pipe section.

[0054] In this embodiment, the water consumption metering terminal further includes a communication module 6 , which is connected to the main control chip 1 and is used to upload the water consumption data generated by the main control chip 1 to the server.

[0055] The communication module is connected to the main control chip and can upload water flow speed and instantaneous flow data to the server.

[0056] Combination Figure 2 and Figure 5 In this embodiment, the main control chip 1 is connected to the communication module 6. The main control chip 1 includes a PB11 pin and a PB12 pin. The communication module 6 includes a UART1_TXD pin and a UART1_RXD pin, wherein the UART1_TXD pin is a data transmission pin, and the UART1_RXD pin is a data receiving pin; the PB11 pin is connected to the UART1_TXD pin, and the PB12 pin is connected to the UART1_RXD pin. Through the above connection relationship, the main control chip 1 is connected to the communication module 6, the main control chip 1 transmits the water use data to the communication module 6, and the communication module 6 transmits the data to the background device.

[0057] The communication module can use NB-IoT (Narrow Band Internet of Things), CAT.1 (LTEUE-Category1, CAT.1 mode) and other communication methods to facilitate long-distance data transmission. One communication module can be used to collect data from up to three pipe sections, saving development costs.

[0058] The metering chip 2 used in the utility model can be connected to multiple transducers through an analog switch 3. The transducers are connected to water pipes. The metering chip 2 can measure multiple pipe sections by sending and receiving ultrasonic waves back and forth, and transmit the metering data of multiple pipe sections to the main control chip 1; the main control chip 1 is used to send a meter reading signal to the metering chip 2 to control the metering chip 2 to start metering, and is also used to receive metering data and calculate the water consumption data of each pipe section. The water consumption data is the water flow velocity and instantaneous flow of the corresponding pipe section; the liquid crystal display 5 is connected to the main control chip 1 to display the water flow velocity and instantaneous flow of each pipe section in real time; the communication module 6 is connected to the main control chip 1, and the water flow velocity and instantaneous flow data can be uploaded to the background device. The water metering terminal of the utility model is complete in design, can connect and monitor multiple pipe sections, and supports data display and data communication transmission.

[0059] In this embodiment, the model of the main control chip 1 is a TDC series time measurement chip. Specifically, this embodiment adopts a dedicated liquid measurement chip TDC-GP22.

[0060] The utility model uses a TDC series time measurement chip as a main control chip 1. This series of chips can communicate data with a metering chip 2, and also has additional pins to connect external devices such as a memory 4 and a liquid crystal display 5; it has a communication function and can transmit data to a platform or other devices; an internal integrated algorithm can calculate the metering data of the metering chip 2 to obtain water flow velocity and instantaneous flow data.

[0061] In this embodiment, the model of the metering chip 2 is an MS series ultrasonic distance measurement chip. Specifically, this embodiment adopts the MS1030 ultrasonic distance measurement chip.

[0062] The utility model uses the MS series ultrasonic distance measurement chip as the metering chip 2. This series of chips can emit ultrasonic waves, receive echo signals and calculate time difference data as metering data according to the echo signals; it has a second communication interface and can transmit the metering data to the main control chip 1.

[0063] In this embodiment, the model of the analog switch 3 is an SGM series analog switch 3 .

[0064] The utility model uses an SGM series analog switch 3 as the analog switch 3. Specifically, the present embodiment adopts an SGM4782 analog switch. This series of switches can receive ultrasonic waves emitted by a metering chip 2 and distribute the ultrasonic waves to a number of transducers. At the same time, there are pins for receiving echo signals, and the ultrasonic signals emitted by a number of transducers are transmitted to the metering chip 2, so that the metering chip 2 can calculate the time difference data to obtain the metering data.

[0065] In this embodiment, Figure 2 As shown, the first communication interface of the main control chip 1 includes a PA03 pin, a PF04 pin, a PF05 pin, a PA04 pin, a PA06 pin and a PA07 pin. Figure 6 As shown, the second communication interface of the metering chip 2 includes an INTN pin, an SSN pin, an SCK pin, an SI pin, an SO pin, and an RSTN pin.

[0066] The INTN pin is connected to the PA07 pin, the SSN pin is connected to the PA06 pin, the SCK pin is connected to the PA04 pin, the SI pin is connected to the PF05 pin, the SO pin is connected to the PF04 pin, and the RSTN pin is connected to the PA03 pin.

[0067] In this embodiment, a communication connection is established between the main control chip 1 and the metering chip 2 through the first communication interface and the second communication interface. Specifically, the communication connection adopts the SPI (Serial Peripheral Interface) communication protocol. The main control chip 1 transmits the meter reading data to the metering chip 2, and the metering chip 2 transmits the metering data to the main control chip 1 through the communication connection.

[0068] In this embodiment, Figure 6 As shown, the first ultrasonic interface of the metering chip 2 includes a Fire_UP pin and a Fire_DN pin. Figure 7 As shown, the second ultrasonic interface of the analog switch 3 includes a Y pin and an X pin.

[0069] The Y pin is connected to the Fire_UP pin and the X pin is connected to the Fire_DN pin.

[0070] The metering chip 2 transmits the ultrasonic signal to the second ultrasonic interface of the analog switch 3 through the first ultrasonic interface.

[0071] In this embodiment, Figure 7 As shown, the ultrasonic transmission interface includes a Y1 pin, a Y2 pin and a Y3 pin, and the Y1 pin, the Y2 pin and the Y3 pin are respectively connected to Figure 8 The receiving pins DW pins of several transducers are connected.

[0072] According to the actual usage scenario, the ultrasonic transmission interface can be connected to the DW pins in at most three groups of transducers to transmit the ultrasonic signal to the corresponding transducers.

[0073] In this embodiment, Figure 7 As shown, the ultrasonic receiving interface includes X1 pin, X2 pin and X3 pin, and X1 pin, X2 pin and X3 pin are respectively connected to Figure 8 The transmitting pins of several transducers are connected to the UP pins.

[0074] According to the actual usage scenario, at most three groups of transducers receive ultrasonic waves and generate echo signals through the UP pin, and the echo signals will be transmitted to the corresponding ultrasonic receiving interface.

[0075] In the description of this specification, the description with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0076] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A water metering terminal, characterized in that: include: A main control chip, comprising a first communication interface, the main control chip is connected to a second communication interface of a metering chip through the first communication interface, the main control chip is used to send meter reading information to the metering chip through the first communication interface, and the metering chip is used to send an ultrasonic signal after receiving the meter reading information through the second communication interface; The metering chip further includes a first ultrasonic interface, through which the metering chip is connected to a second ultrasonic interface of the analog switch, and the metering chip is used to transmit the ultrasonic signal to the second ultrasonic interface through the first ultrasonic interface; The analog switch comprises an ultrasonic transmission interface and an ultrasonic reception interface, the analog switch is connected to a plurality of transducers, and the analog switch is used to distribute the ultrasonic signal to the plurality of transducers through the ultrasonic transmission interface; The plurality of transducers are used to generate echo signals after receiving the ultrasonic waves through receiving pins, and to transmit the echo signals to the ultrasonic receiving interface through transmitting pins; The metering chip is also used to generate metering data according to the echo signal, and to transmit the metering data to the main control chip through the second communication interface; The main control chip is also used to receive the metering data through the first communication interface, and to generate water usage data according to the metering data.

2. The water consumption metering terminal according to claim 1, characterized in that: The water metering terminal also includes a memory, which is connected to the main control chip and is used to store data of the main control chip.

3. The water consumption metering terminal according to claim 2, characterized in that: The water consumption metering terminal further includes a liquid crystal display, which is connected to the main control chip and is used to display the water consumption data.

4. The water consumption metering terminal according to claim 3, characterized in that: The water metering terminal also includes a communication module, which is connected to the main control chip and is used to upload the water use data generated by the main control chip to a server.

5. The water consumption metering terminal according to claim 1, characterized in that: The model of the main control chip is a TDC series time measurement chip.

6. The water consumption metering terminal according to claim 1, characterized in that: The model of the metering chip is the MS series ultrasonic distance measurement chip.

7. The water consumption metering terminal according to claim 1, characterized in that: The model of the analog switch is SGM series analog switch.

8. The water consumption metering terminal according to claim 1, characterized in that: The first communication interface of the main control chip includes a PA03 pin, a PF04 pin, a PF05 pin, a PA04 pin, a PA06 pin and a PA07 pin; The second communication interface of the metering chip includes an INTN pin, an SSN pin, an SCK pin, an SI pin, an SO pin, and an RSTN pin; The INTN pin is connected to the PA07 pin, the SSN pin is connected to the PA06 pin, the SCK pin is connected to the PA04 pin, the SI pin is connected to the PF05 pin, the SO pin is connected to the PF04 pin, and the RSTN pin is connected to the PA03 pin.

9. The water consumption metering terminal according to claim 1, characterized in that: The first ultrasonic interface of the metering chip includes a Fire_UP pin and a Fire_DN pin; The second ultrasonic interface of the analog switch includes a Y pin and an X pin; The Y pin is connected to the Fire_UP pin, and the X pin is connected to the Fire_DN pin.

10. The water consumption metering terminal according to claim 1, characterized in that: The ultrasonic transmission interface of the analog switch includes a Y1 pin, a Y2 pin and a Y3 pin, and the Y1 pin, the Y2 pin and the Y3 pin are respectively connected to the receiving pins of the plurality of transducers; The ultrasonic receiving interface of the analog switch includes an X1 pin, an X2 pin and an X3 pin, and the X1 pin, the X2 pin and the X3 pin are respectively connected to the transmitting pins of the plurality of transducers.

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