CN112985533B - Stifled supplementary monitoring system is prevented to wireless NB-IoT thing networking intelligence water gauge of matrix - Google Patents
Stifled supplementary monitoring system is prevented to wireless NB-IoT thing networking intelligence water gauge of matrix Download PDFInfo
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- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
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- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W88/14—Backbone network devices
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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Abstract
The invention relates to the technical field of intelligent water meters, in particular to a matrix type wireless NB-IoT internet of things intelligent water meter anti-blocking auxiliary monitoring system, which comprises a wireless intelligent water meter terminal, a matrix type internet of things router and an anti-blocking monitoring device, and is characterized in that: the wireless intelligent water meter terminal is installed in the upper end of water pipe, and through the mutual fixed connection of connecting seat between wireless intelligent water meter and the water pipe, prevent stifled monitoring devices and install in the both sides of water pipe, communication is established with a matrix thing networking router to a plurality of wireless intelligent water meter terminals. The anti-blocking monitoring device with high monitoring precision can be provided by utilizing directly transmitted light and scattered light, impurities in water can be monitored in real time by utilizing directly transmitted light and scattered light, relatively accurate water quality monitoring parameters can be provided, the anti-blocking monitoring device can be externally connected to an instrument for displaying through the first electric connector and the second electric connector, and the anti-blocking monitoring device has the advantages of simplicity in operation and high monitoring precision.
Description
Technical Field
The invention relates to the technical field of intelligent water meters, in particular to a matrix type wireless NB-IoT internet of things intelligent water meter anti-blocking auxiliary monitoring system.
Background
At present, the intelligent water meter is a novel water meter which measures the water consumption used by residents every day by using the modern microelectronic technology, the modern sensing technology and the intelligent IC card technology and transmits and settles the transaction by using the water consumption data, compared with the traditional water meter which only has the functions of flow acquisition and mechanical pointer display of the water consumption, the intelligent water meter has great progress, the intelligent water meter can record and electronically display the water consumption, can control the water quantity according to convention, automatically complete the water fee calculation of the step water price and simultaneously store the water consumption data.
The invention patent with the patent number of CN201920182204.X discloses a wireless intelligent water meter, which comprises a water meter body, and further comprises an electromagnetic induction coil, a voltage amplifier, an analog-to-digital converter, a micro-processing chip and a wireless communicator, wherein the electromagnetic induction coil is arranged at a water inlet in the water meter body, the output end of the electromagnetic induction coil is electrically connected with the input end of the voltage amplifier, the output end of the voltage amplifier is electrically connected with the input end of the analog-to-digital converter, the output end of the analog-to-digital converter is electrically connected with the first input end of the micro-processing chip, the first output end of the micro-processing chip is electrically connected with the input end of the wireless communicator, the water meter further comprises a temperature sensor for collecting water temperature data, the temperature sensor is arranged at one side close to the water inlet in the water meter body, and the output end of the temperature, the water meter further comprises a memory for storing monitored water flow and water temperature data, the input end of the memory is connected with the second output end of the micro-processing chip, the water meter further comprises a GPS module for positioning the geographical position of the water meter, the output end of the GPS module is connected with the third input end of the micro-processing chip, the water meter further comprises an NFC electronic tag, the NFC electronic tag is arranged on the outer surface of the water meter body in a sticking mode, and factory information, water meter parameters and maintenance information of the corresponding water meter are stored in the NFC electronic tag; the invention with the patent number of CN202021378277.5 discloses an intelligent water meter with water quality detection, which comprises an intelligent water meter main body, a water supply pipe and connecting pipes, wherein the input end of the intelligent water meter main body is provided with the water supply pipe, the output end of the intelligent water meter main body is provided with the connecting pipes, the surface of the water supply pipe is connected with a filtering mechanism in series, the filtering mechanism consists of a conduit, a first filter screen plate and a second filter screen plate, one end of each connecting pipe is provided with a monitoring pipe, the top surface of the monitoring pipe is inserted with a monitoring probe, one side of the monitoring pipe is provided with a MINDER, the inner cavity of the monitoring pipe is provided with a bracket, the surface of the bracket is embedded and connected with a limiting sleeve, one end of the inner cavity of the conduit is provided with the first filter screen plate, one end of the inner cavity of the conduit is provided with the second filter screen plate, the surface of the outer wall of the monitoring pipe is embedded and connected with an observation window, and the monitoring probes are specifically provided with two groups, and two groups of monitoring probes are respectively and electrically connected with the MINDER water quality monitor through leads, the inner diameter of the limit sleeve is the same as the outer diameter of the monitoring probe, the monitoring probes are connected with the limit sleeve in an inserting way, the output end of the monitoring tube is provided with a water outlet pipe, the technical scheme can be externally connected with the water pipe through a water supply pipe, further, running water can be conveyed into the intelligent water meter main body, in addition, the intelligent water meter main body can be connected with monitoring equipment through a connecting pipe, the running water can be conveyed through a guide pipe in the filtering mechanism, installation space can be provided for the first filtering screen plate and the second filtering screen plate, and the first filtering screen plate and the second filtering screen plate are mutually matched, so that the water flowing through the guide pipe can be subjected to double filtering, further, the silt in the running water can be reduced, and the water passing through the monitoring pipe can be monitored through the two groups of monitoring probes, and the monitoring probe can be with monitoring data transmission again to MINDER water quality control appearance in, and then can show the monitoring structure on MINDER water quality control appearance to the staff observes the record, mutually supports through support and spacing sleeve, and then can fix the monitoring probe, so that can improve the stability of monitoring probe service function.
However, the above-mentioned intelligent water meter also has not enough in the middle of the in-service use, the accuracy and the validity of water quality monitoring data can't be guaranteed to present intelligent water meter promptly, consequently, must carry out continuous improvement and innovation to the water quality monitoring technique, promote the degree of accuracy of water quality monitoring result, wherein the instrument sensitivity descends, lacks the problem such as maintenance can lead to the water quality monitoring result to appear the error, reduces the accuracy of water quality monitoring result, thereby lead to pipeline ageing or incrustation deposit, and long time can lead to the water course in the water meter to block up, thereby influence water meter performance greatly.
Therefore, a matrix type wireless NB-IoT internet of things intelligent water meter anti-blocking auxiliary monitoring system capable of solving the above problems is needed.
Disclosure of Invention
The invention provides a matrix type wireless NB-IoT (NB-IoT) Internet of things intelligent water meter anti-blocking auxiliary monitoring system, which can provide an anti-blocking monitoring device with higher monitoring precision by utilizing directly transmitted light and scattered light, wherein the anti-blocking monitoring device is provided with a photosensitive device and a light-emitting device, can utilize the directly transmitted light and the scattered light to monitor suspended matters in water in real time and output parameters.
The technical scheme adopted by the invention for solving the technical problems is as follows: a matrix type wireless NB-IoT (network B-IoT) intelligent water meter anti-blocking auxiliary monitoring system comprises a wireless intelligent water meter terminal, a matrix type IoT router and an anti-blocking monitoring device, wherein the wireless intelligent water meter terminal is installed at the upper end of a water pipe, the wireless intelligent water meter and the water pipe are mutually and fixedly connected through a connecting seat, the anti-blocking monitoring device is installed at two sides of the water pipe, one wireless intelligent water meter terminal is communicated with a plurality of matrix type IoT routers, a first observation window and a second observation window are arranged inside a shell of the anti-blocking monitoring device, the first observation window and the second observation window are mutually vertically arranged in parallel, a light-emitting device is installed at one side of the first observation window, the light-emitting device comprises a calibration lamp and a working lamp, the anti-blocking monitoring device comprises a light-emitting device and a photosensitive device, the outer cladding of the water pipe is provided with a shell, the light emitting device is installed in one side of water pipe shell, and the photosensitive device is installed at the opposite side of water pipe shell, and the photosensitive device sets up the one side at the second observation window, the photosensitive device is provided with the second apron in one side of scattered light battery and transmission photocell including scattered light battery and transmission photocell, has seted up the through-hole on the second apron, the second apron with mutual fixed connection between the second observation window, install second electric connector in one side of second apron, install the second electric connector on second electric connector, through battery lead A interconnect between scattered light battery and the second electric connector, through battery lead B interconnect between transmission photocell and the second electric connector.
Further, wireless intelligent water gauge terminal is including water meter controller, water gauge radio transceiver module, water gauge clock chip, acquisition unit, water gauge display and water gauge power module, prevent stifled monitoring devices and prevent stifled monitoring module between through line connection, prevent stifled monitoring module, water gauge radio transceiver module, water gauge clock chip, acquisition unit, water gauge display and water gauge power module and all pass through circuit and water gauge controller electric connection, water gauge radio transceiver module and matrix thing networking router establish communication.
Further, the calibration lamp sets up the lower extreme of work lamp, the calibration lamp with one side of work lamp be provided with the first apron of the mutual fixed connection of casing, seted up the through-hole on first apron, mutual fixed connection between one side of first observation window and the first apron installs first electric connector in one side of first apron, installs first electric connector on first electric connector, through calibration light lead interconnect between calibration lamp and the first electric connector, through work light lead interconnect between work lamp and the first electric connector.
Furthermore, two public leads are further arranged between the first electric connecting piece and the calibration lamp and between the first electric connecting piece and the working lamp, and the first electric connecting piece is connected with the calibration lamp and between the first electric connecting piece and the working lamp through the two public leads.
Furthermore, the lower end of the connecting seat is provided with a blade, the blade extends into the water pipe, the blade and the connecting seat are in an integral connecting structure, the connecting seat and the shell are fixedly connected with each other through bolts, and a gasket is arranged between the connecting seat and the shell.
Further, matrix thing networking router is including master control chip, thing networking transmission module, router clock chip, external communication interface, router display, router radio transceiver module, encryption module, router power module and router memory all link to each other with master control chip through the circuit, and router radio transceiver module establishes communication with water gauge radio transceiver module.
Furthermore, the model of the master control chip adopts a bcm5357 chip, an MT7628AN chip or an MT7628A chip.
The invention has the advantages that: the invention provides a matrix type wireless NB-IoT intelligent water meter anti-blocking auxiliary monitoring system, which comprises a wireless intelligent water meter terminal, a matrix type IoT router and an anti-blocking monitoring device, wherein the wireless intelligent water meter terminal is arranged at the upper end of a water pipe, the wireless intelligent water meter and the water pipe are fixedly connected with each other through a connecting seat, the anti-blocking monitoring device is arranged at two sides of the water pipe, one wireless intelligent water meter terminal is communicated with a plurality of matrix type IoT routers, the anti-blocking monitoring device with higher monitoring precision can be provided by utilizing directly transmitted light and scattered light, the anti-blocking monitoring device is provided with a photosensitive device and a light-emitting device, suspended matters in water can be monitored in real time by utilizing the directly transmitted light and the scattered light, and parameters are output, the anti-blocking auxiliary monitoring system can provide relatively accurate water quality monitoring parameters in a relatively wide range, can be connected to the instrument through first electric connector and second electric connector and show, have easy operation and the higher advantage of monitoring precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent water meter terminal according to the present invention.
Fig. 2 is a schematic structural diagram of the intelligent water meter anti-blocking monitoring device in the invention.
Fig. 3 is a schematic circuit structure diagram of the intelligent water meter anti-blocking auxiliary monitoring system in the invention.
FIG. 4 is a graph illustrating the output of a photosensitive device of the present invention versus suspended matter in water.
FIG. 5 is a graph showing the output ratio of the photosensitive device of the present invention.
Fig. 6 is a schematic diagram of a matrix internet of things router in the invention.
Wherein:
| 1. a housing; | 2. a wireless intelligent water meter terminal; | 3. a connecting seat; |
| 4. a blade; | 5. a gasket; | 6. a bolt; |
| 7. a water pipe; | 8. a first electrical connection; | 9. a second electrical connection; |
| 10. a first cover plate; | 11. a second cover plate; | 12. a first observation window; |
| 13. a second observation window; | 14. calibrating the lamp; | 15. a working lamp; |
| 16. a first electrical connector; | 17. a second electrical connector; | 18. calibrating the optical lead; |
| 19. a working light lead; | 20. a common lead; | 21、a scattering photovoltaic cell; |
| 22. a transmissive photovoltaic cell; | 23. a battery lead A; | 24. a battery lead B; |
| 25. an operational amplifier; | 26. a bridge rectifier A; | 27. a secondary winding A; |
| 28. a transformer; | 29. a primary winding; | 30. a secondary winding B; |
| 31. a positive bus; | 32. a negative bus; | 33. a filter capacitor A; |
| 34. a resistor A; | 35. a rectifier A; | 36. a filter capacitor B; |
| 37. a resistor B; | 38. a rectifier B; | 39. a bridge rectifier B; |
| 40. a filter capacitor C; | 41. a resistor C; | 42. a resistor D; |
| 43. a first potentiometer; | 44. a movable arm A; | 45. a movable arm B; |
| 46. a movable arm C; | 47. a balance potentiometer; | 48. a resistor E; |
| 49. a resistor F; | 50. |
51. A resistor G; |
| 52. a resistor H; | 53. a resistor I; | 54. a resistor J; |
| 55. a resistor K; | 56. bypass capacitor |
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly specified or limited, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
FIG. 1 is a schematic structural diagram of an intelligent water meter terminal in the invention, such as the intelligent water meter terminal shown in FIG. 1, which comprises a wireless intelligent water meter terminal, a matrix Internet of things router and an anti-blocking monitoring device, wherein the wireless intelligent water meter terminal is installed at the upper end of a water pipe, the wireless intelligent water meter terminal and the water pipe are fixedly connected with each other through a connecting seat, the anti-blocking monitoring device is installed at two sides of the water pipe, one is communicated with a plurality of matrix Internet of things routers, the wireless intelligent water meter terminal comprises a water meter controller, a water meter radio transceiver module, a water meter clock chip, a collection unit, a water meter display and a water meter power module, the anti-blocking monitoring device is connected with the anti-blocking monitoring module through a line, the anti-blocking monitoring module, the water meter radio transceiver module, the water meter clock chip, the collection unit, Water gauge display and water gauge power module all establish communication through circuit and water gauge controller electric connection, water gauge radio transceiver module and matrix thing networking router, and the model of water gauge clock chip is: PCF8563, the acquisition unit comprises a pressure sensor and a flow sensor, the flow sensor is arranged on each wireless intelligent water meter terminal and used for metering the flow of the wireless intelligent water meter terminal, the pressure sensor monitors the pressure in the wireless intelligent water meter terminal, the acquisition unit transmits the flow information of each wireless intelligent water meter terminal to the water meter controller and then to the matrix type Internet of things router to be uploaded to the cloud of a water company through the water meter radio transceiver module, the water meter radio transceiver module is connected with the matrix type Internet of things router in a BLE/Sub 1G communication mode, the wireless intelligent water meter terminal meters the data of the wireless intelligent water meter terminal through the built-in sensor, and when the metering value reaches a transmission set value, the wireless intelligent water meter terminal sends the data to the router radio transceiver module in a wireless mode, the router radio transceiver module receives data information of the wireless intelligent water meter terminal, the router controller carries out metering and stores the data information through the router memory, and the internet of things transmission module transmits the water meter information to the cloud management system in a centralized mode according to a set transmission period.
Matrix thing networking router includes: the network management system comprises a main control chip, an Internet of things transmission module, a router clock chip, an external communication interface, a router display, a router radio transceiver module, an encryption module, a router power module and a router memory, wherein the main control chip adopts a bcm5357 chip, an MT7628AN chip or an MT7628A chip, the Internet of things transmission module, the router clock chip, the external communication interface, the router display, the router radio transceiver module, the router power module and the router memory are all connected with the main control chip through lines, the router radio transceiver module is communicated with a water meter radio transceiver module, the Internet of things transmission module transmits information to a water service cloud through an operator cloud, an operator is connected with the external communication interface through a PDA to acquire authority from the water service cloud to control the matrix type Internet of things router, and the network management system can simultaneously receive flow and water quality data uploaded by a plurality of wireless intelligent water meter terminals and record the data The main control chip controls the output on-off of the router power supply module and the communication with the communication module to realize the interaction with the cloud data of the water company, and the main control chip realizes the man-machine interaction function through the detection of an external communication interface and keys and interacts the data with the cloud of the water company in real time after the keys are effectively pressed. The main control chip performs an information display function through the router display. The main control chip performs data access function through the router memory. The router radio transceiver module is connected with the wireless intelligent water meter terminal in a BLE/Sub 1G communication mode, a sensor is arranged in the wireless intelligent water meter terminal to measure data of the wireless intelligent water meter terminal, when a measured value reaches a transmission set value, the wireless intelligent water meter terminal transmits the data to the router radio transceiver module in a radio mode, the router radio transceiver module receives data information of each wireless intelligent water meter terminal, a main control chip measures the data and stores the data through a router memory, and the internet of things transmission module can transmit the information of each wireless intelligent water meter terminal to the cloud of a water company in a centralized mode according to a set transmission period.
Example 2:
fig. 1 is a schematic structural diagram of an intelligent water meter terminal in the invention, fig. 2 is a schematic structural diagram of an intelligent water meter anti-blocking monitoring device in the invention, fig. 4 is a schematic structural diagram of a curve of an output of a photosensitive device in the invention relative to suspended matters in water, fig. 5 is a schematic structural diagram of an output ratio curve of a photosensitive device in the invention, and fig. 1, fig. 2, fig. 4 and fig. 5 show a matrix type wireless NB-IoT internet of things intelligent water meter anti-blocking auxiliary monitoring system, wherein a water meter controller comprises an MCU control unit and a water meter memory, the anti-blocking monitoring module, a water meter radio transceiver module, a water meter clock chip, an acquisition unit, a water meter display, a water meter power module, an encryption module and the water meter memory are all connected with the MCU control unit through circuits, and the water meter controller finishes the work of acquiring and recording the flow data of a single wireless intelligent water meter terminal through the acquisition unit, carry out the access function of data through the water gauge memory, it is regularly sent the data of saving in the water gauge memory through water gauge radio transceiver module, reduces the consumption through each module power supply break-make of water gauge power module control, wireless intelligent water gauge terminal still includes: the valve control module and the valve body are connected with the MCU through circuits, and the valve control module controls the opening and closing states of the valve body. The valve control module is a driving module for realizing the opening and closing of the valve body, the application does not aim at protecting the internal structure of the valve control module, so the valve control module is not disclosed, for example, an anti-blocking monitoring device shown in the attached figure 2 of the specification comprises a light-emitting device and a photosensitive device, the outer coating of the water pipe is provided with a shell, the light-emitting device is arranged at one side of the water pipe shell, the photosensitive device is arranged at the other side of the water pipe shell, a first observation window and a second observation window are arranged inside the shell, the first observation window and the second observation window are vertically arranged in parallel, the light-emitting device is arranged at one side of the first observation window, the light-emitting device comprises a calibration lamp and a work lamp, the calibration lamp is arranged at the lower end of the work lamp, one side of the calibration lamp and one side of the work lamp is provided with a first cover plate fixedly connected with the shell, and the first cover plate is provided with a through hole, the device comprises a first observation window, a first cover plate, a first electric connector, a calibration lamp, a working lamp, a second electric connector, a second cover plate, a through hole and a photosensitive device, wherein the first observation window and the first cover plate are fixedly connected with each other, the first electric connector is arranged on one side of the first cover plate, the first electric connector is arranged on the first electric connector, the calibration lamp is connected with the first electric connector through the calibration light lead, the working lamp is connected with the first electric connector through the working light lead, the first electric connector is connected with the calibration lamp and the working lamp through the two common leads, the photosensitive device is arranged on one side of the second observation window, the photosensitive device comprises a scattering photocell and a transmission photocell, the second cover plate is arranged on one side of the scattering photocell and the transmission photocell, the second cover plate is fixedly connected with the second observation window, and a second electric connector is arranged on one side of the second cover plate, a second electric connector is arranged on the second electric connector, the scattering photocell and the second electric connector are mutually connected through a battery lead A, and the transmission photocell and the second electric connector are mutually connected through a battery lead B.
Wherein the housing of the water pipe is a cylindrical member having flanged ends on both sides for connection to the water pipe of the water supply, it will be appreciated by the skilled person that instead of the cylindrical member, a member of other shape may be provided, which is provided with an opening at its top and over which opening is provided a connection socket with vanes, wherein the plane of the vanes is preferably positioned parallel to the flow direction so that pressure drop and turbulence are minimized, a gasket is provided between the connection socket and the housing, and may be attached to the housing by any suitable means, such as by bolts.
The invention is characterized in that two electric connecting pieces are respectively arranged on two sides of a shell, the two electric connecting pieces have the same structure, a first electric connecting piece and a second electric connecting piece are arranged oppositely in diameter, the first electric connecting piece is arranged on one side of a first cover plate, a through hole is arranged on the first cover plate, a first observation window is made of glass or plastic, the first observation window is arranged in an opening on one side inside the shell and is sealed through watertight connection, an anti-blocking monitoring device comprises a light-emitting device and a photosensitive device, the light-emitting device comprises a working lamp and a calibration lamp, the working lamp and the calibration lamp are respectively arranged in a notch of the first cover plate, an electric lead for connecting the working lamp and the calibration lamp comprises a calibration light lead, a working light lead and a common lead, the calibration light lead, the working light lead and the common lead all penetrate through the through hole on the first cover plate and are mutually connected with a first electric connector of an indicating or instrument circuit, the photosensitive device of the invention is similar to the arrangement structure of the light-emitting device, the photosensitive device of the invention is provided with a second observation window which is also made of glass or plastic, the second observation window is arranged in an opening at the other side in the shell and is sealed through watertight connection, the photosensitive device comprises a transmission photocell and a scattering photocell, the scattering photocell and the transmission photocell are arranged at one side of the second observation window in a way of being close to each other, as shown in the specification and the attached figure 2, the specification and the attached figure 4 and the specification and the attached figure 5, the electric conductance of the transmission photocell and the scattering photocell is changed according to the received light, if more light is received, the electric conductance of the transmission photocell and the scattering photocell is increased, the transmission photocell and the scattering photocell are respectively shielded from each other through a concave part arranged in the second cover plate cover, the leads for the transmission photocell and the scattering photocell comprise a battery lead A and a battery lead B, the scattering photocell and the second electrical connector are connected with each other through a battery lead A, the transmission photocell and the second electrical connector are connected with each other through a battery lead B, and the transmission photocell and the second electrical connector can be led out through the second electrical connector to be connected to a meter or an indicating circuit.
Example 3:
fig. 3 is a schematic circuit diagram of the intelligent water meter anti-blocking auxiliary monitoring system according to the present invention, and as shown in fig. 3, the circuit uses a conventional operational amplifier. The power of the circuit, in this case +10 volts direct current, a bridge rectifier a providing 50 and-10 volts, the input terminals of which are connected to the secondary winding of a transformer, the centre of which is connected to a reference potential or ground, the primary winding of which is connected to a suitable power supply, in this case 115 volts, the output terminals of the bridge rectifier a being connected to a positive bus provided with a filter capacitor a and a resistor a, and the positive 10 volts being regulated by a zener diode or rectifier a, the negative bus 32 of which is provided with a filter capacitor B and a resistor B and regulated by a zener diode or rectifier B38, the +10 and-10 volts being connected to the circuit at the various points shown, the power supply also providing the work and calibration lamps with a regulated current, which is provided by the bridge rectifier B, the input terminal of the bridge rectifier B is connected to the secondary winding B of the transformer, the bridge rectifier B being connected to a point of reference potential or to ground, the other output terminal of the bridge rectifier B being connected to ground through a filter capacitor C and also to the collectors of two PNP transistors Q1 and Q2, the transistor Q1 providing a current path for the light and its emitter being connected to the movable arm a of a multi-segment switch having seven contacts, the first six contacts being connected to the work light through work light leads and the seventh contact being connected to the calibration light through calibration light leads, the switch of the circuit comprising two other parts having a movable arm B and a movable arm C, each part having seven associated contacts, the movable arm a, the movable arm B and the movable arm C operating together on a common axis (as indicated by the dashed lines in the circuit diagram).
The matrix type Internet of things router is powered by a battery and is communicated with a cloud system of an operator in an NB-IoT, LoRa and other wide area network modes. The networking process comprises the steps that firstly, a router power module is used for connecting a communication module through an external communication interface to supply power, a main control chip is used for operating the communication module to search for a base station after the level is stable, NB-IoT network service is applied after the base station is successfully connected, a specified platform address is connected, and after the connection is completed, data interaction between the matrix type Internet of things router and the cloud end of a water service company is carried out through the Internet of things.
Wherein the base of transistor Q1 is grounded through resistor C and is also coupled to the emitter of transistor Q2, the base of transistor Q2 is coupled through resistor D to the-10 volt bus and is also grounded through a first potentiometer, the setting of which determines the base voltage of transistor Q2, the setting of which determines the voltage supplied to the work or calibration lamp, since transistors Q1 and Q2 both act as emitter followers, as shown in figure 3 of the specification, in the upper part of the circuit, the balancing potentiometer is connected to an operational amplifier, one input terminal of which is grounded and the other input terminal of the amplifier is connected to a scattered light cell, the other end of which is connected to the movable arm B of the switch, the first five contacts associated with movable arm B are connected to-10 volts, the sixth and seventh contacts are connected to the junction of the voltage divider network, the voltage divider network comprises a resistor E and a resistor F connected between-10 volts and ground, the output terminals of the operational amplifier being coupled by a second potentiometer connected to fifth, sixth and seventh contacts associated with a movable arm C of the ganged switch, the voltage divider comprising a resistor G, a resistor H, a resistor I and a resistor J, the first four contacts associated with the movable arm C being connected to junctions between adjacent pairs of the resistor G, the resistor H, the resistor I and the resistor J, the movable arm C being connected to the input terminals by a transmitted light cell, the input conductance being in fact the conductance of a scattered light cell, as can be seen from the description in figure 4, the conductance rising with increasing suspended matter in the water, so that, in order to keep the voltmeter connected to the output of the amplifier at a certain scale, it is possible to engage with the selected contacts by the movable arm C, in fig. 3, the contacts associated with each of movable arm a, movable arm B and movable arm C have been marked with a range of values of the aerosol being read by the meter, so with movable arm C and the other two movable arms a and B engaging the uppermost contact, the aerosol ranges from 0 to 1. Thus, the feedback voltage is determined by a voltage divider consisting of the sum of the resistor a (10 ohms) and the resistor B on one side, on the other side, the resistances of the resistor H, the resistor I, the resistor G and the potentiometer constituted by the sum of the resistors a (10 ohms) and B, on the other side, the feedback voltage and the ratio K of the movable arm C being low, the total resistance of the voltage divider remaining the same as before in the case of the movable arm C in contact with the contact and the suspension at 50SS, the combined resistance of the resistor H, the resistor I, the resistor J and the resistor K amounting to 500 ohms, the resistor G, the resistor H, the resistor I, the resistor J and the resistor K thus making the same voltmeter usable over a wider range of suspension, the description accompanying fig. 5 also shows the meter readings obtained in an actual circuit constituted by the voltmeter of the values and voltage ranges from 0 to 5 volts as illustrated in the description fig. 3 In (1). The circuit of figure 3 of the specification thus achieves a division of the scattered light conductivity by the transmitted light conductivity and provides a linear indication of the suspended matter in water over a wide range of values of suspended matter, the highest range of values being provided by lowering the input voltage, regular recalibration being necessary as any anti-jam monitoring device will show a deviation from its original calibration, which may be due to voltage variations, temperature, ageing, sight glass coating or other causes, the meter of the invention using a calibration aperture representing the value of the suspended matter, the movable arm a, the movable arm B and the movable arm C of the switch further comprising calibration contacts arranged to calibrate the circuit. Calibration may be accomplished by placing movable arm a, movable arm B, and movable arm C in calibration positions, which may cause the calibration lights to light up. The diffusion photocell and the transmitted photocell both receive substantially equal amounts of light and the meter displays the ratio of the output of the photocell, the illumination of the calibration bulb simulates in fact a virtual suspension condition, according to which the device can be calibrated, independent of the colour, on turbid liquids, the calibration potentiometer being adjusted to provide a predetermined reading on the meter, this calibration method allowing remote calibration from a distance and simplifying the process, the calibration being possible without interrupting the flow.
The working mode is as follows: when the invention is used, the working lamp is firstly started, when the working lamp is lighted, the blade does not allow the direct transmission of light, as shown by the dotted line in the specification and the attached figure 2, the light emitted by the working lamp reaches the transmission light cell, the scattering photocell receives the light scattered by the particle suspended matter in the liquid in the water pipe from the working light, then the calibration lamp is started, as shown by the dotted line in the specification and the attached figure 2, the light from the calibration lamp can reach the scattering photocell and the transmission light cell, when the liquid in the water pipe flows through, as shown in the specification and the attached figure 4, the scattering photocell and the transmission light cell can measure the suspended matter in the water, the value of the suspended matter and the conductance of the cells in the micro-bubbles change along with the suspended matter in the water, the scattering photocell starts to lose linearity at about 10SS of the suspended matter index of the water body, gradually flattens and reaches the maximum value when the suspended matter index is 200SS, when the index of suspended matter in water exceeds 200SS, the slope is reversed and reduced, the transmission photocell has almost constant output when passing through the suspended matter index 10SS, and thereafter decreases along a non-linear curve, two curves as shown in figure 4 of the specification illustrate that the response of transmitted light and scattered light is non-linear over a wide range of suspended matter values, the skilled person needs to determine the suspended matter of water by the signals of the scattering photocell and the transmission photocell and using a graph when using, if the conductivity of the scattering photocell is divided by the conductivity of the transmission photocell, a substantially linear ratio can be obtained over a relatively wide range of suspended matter values as shown in figure 5 of the specification as how the meter reading varies with suspended matter in water, which is seen in figure 5 of the specification to be very linear between 1SS and 100SS, while the suspended matter value of water is still fairly linear between 100SS and 500SS, such a linear relationship allows direct reading of suspended matter in water over a relatively wide range.
The light sensitive device of the present invention can receive transmitted light directly from a light source and scattered light from particles in a fluid, thereby causing the light sensitive device to emit light, receive scattered light only from the particles, combine the output of the light sensitive device as a ratio of the scattered light sensitive device output to the transmitted light sensitive device output, the ratio being substantially linear over a relatively wide range of aerosol values, and the output of the light sensitive device can be used to provide an accurate indication of the aerosol over the relatively wide range. This ratio can be provided electrically by an operational amplifier if desired, so that no calculations or operations need to be performed.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a stifled supplementary monitoring system is prevented to wireless NB-IoT thing networking intelligence water gauge of matrix, includes wireless intelligent water gauge terminal, matrix thing networking router and prevents stifled monitoring devices, its characterized in that: the wireless intelligent water meter terminal is arranged at the upper end of the water pipe, the wireless intelligent water meter and the water pipe are fixedly connected with each other through the connecting seat, the anti-blocking monitoring device is arranged at two sides of the water pipe, one is communicated with the plurality of matrix internet of things routers, a first observation window and a second observation window are arranged in the anti-blocking monitoring device shell, the first observation window and the second observation window are vertically arranged in parallel, a light-emitting device is arranged at one side of the first observation window and comprises a calibration lamp and a working lamp, the anti-blocking monitoring device comprises a light-emitting device and a photosensitive device, the outer coating of the water pipe is provided with the shell, the light-emitting device is arranged at one side of the water pipe shell, the photosensitive device is arranged at the other side of the water pipe shell and is arranged at one side of the second observation window, and comprises a scattering photocell and a transmission photocell, the second cover plate is arranged on one side of the scattering photocell and the transmission photocell, the through hole is formed in the second cover plate, the second cover plate is fixedly connected with the second observation window, the second electric connecting piece is installed on one side of the second cover plate, the second electric connector is installed on the second electric connecting piece, the scattering photocell is connected with the second electric connector through a battery lead A, and the transmission photocell is connected with the second electric connector through a battery lead B.
2. The anti-blocking auxiliary monitoring system of matrix wireless NB-IoT Internet of things intelligent water meter according to claim 1, characterized in that: wireless intelligent water gauge terminal is including water meter controller, water gauge radio transceiver module, water gauge clock chip, acquisition unit, water gauge display and water gauge power module, prevent stifled monitoring devices and prevent stifled monitoring module between through line connection, prevent stifled monitoring module, water gauge radio transceiver module, water gauge clock chip, acquisition unit, water gauge display and water gauge power module and all establish communication through circuit and water gauge controller electric connection, water gauge radio transceiver module and matrix thing networking router.
3. The anti-blocking auxiliary monitoring system of matrix wireless NB-IoT Internet of things intelligent water meter according to claim 1, characterized in that: the utility model discloses a calibration lamp, including casing, calibration lamp, first electric connector, calibration lamp and first electric connector, the calibration lamp sets up the lower extreme of work lamp, one side of calibration lamp and work lamp be provided with the first apron of the mutual fixed connection of casing, the through-hole has been seted up on first apron, mutual fixed connection between one side of first observation window and the first apron, first electric connector is installed to one side of first apron, installs first electric connector on first electric connector, through calibration light lead wire interconnect between calibration lamp and the first electric connector, through work light lead wire interconnect between work lamp and the first electric connector.
4. The anti-blocking auxiliary monitoring system of matrix wireless NB-IoT Internet of things intelligent water meter according to claim 3, characterized in that: and two common leads are also arranged between the first electric connecting piece and the calibration lamp and between the first electric connecting piece and the working lamp, and the first electric connecting piece is connected with the calibration lamp and between the first electric connecting piece and the working lamp through the two common leads.
5. The anti-blocking auxiliary monitoring system of matrix wireless NB-IoT Internet of things intelligent water meter according to claim 1, characterized in that: the water pipe is characterized in that a blade is arranged at the lower end of the connecting seat, the blade extends into the water pipe, the blade and the connecting seat are of an integral connecting structure, the connecting seat and the shell are fixedly connected with each other through bolts, and a gasket is arranged between the connecting seat and the shell.
6. The anti-blocking auxiliary monitoring system of matrix wireless NB-IoT Internet of things intelligent water meter according to claim 1, characterized in that: matrix thing networking router is including master control chip, thing networking transmission module, router clock chip, external communication interface, router display, router radio transceiver module, encryption module, router power module and router memory all link to each other with master control chip through the circuit, and router radio transceiver module establishes communication with water gauge radio transceiver module.
7. The anti-blocking auxiliary monitoring system of matrix wireless NB-IoT Internet of things intelligent water meter according to claim 6, characterized in that: the model of the master control chip adopts a bcm5357 chip, an MT7628AN chip or an MT7628A chip.
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| US20110079427A1 (en) * | 2009-10-07 | 2011-04-07 | Lakshmikant Suryakant Powale | Insulated non-halogenated covered aluminum conductor and wire harness assembly |
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| EP0629836A1 (en) * | 1993-06-15 | 1994-12-21 | Tokyo Gas Co., Ltd. | Method of inspecting abnormality occurring inside pipe and apparatus for practicing the method |
| CN1279394A (en) * | 2000-08-11 | 2001-01-10 | 清华大学 | In-line monitor of particles discharge speed and its signal processing method |
| CN202078942U (en) * | 2010-05-03 | 2011-12-21 | 斐乐公司 | Crusher and equipment used for monitoring operation of crusher |
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