Wired pulse water meter reading device

Abstract

The utility model discloses a meter reading device for a wired pulse water meter. The meter reading device comprises a pulse conversion unit, a transmission unit, a control unit and a power supply unit, one end of the control unit is electrically connected with the pulse conversion unit, the other end of the control unit is electrically connected with the transmission unit, the pulse conversion unit is electrically connected with the transmission unit, the pulse conversion unit is electrically connected with a pulse line of a wired pulse water meter, and the transmission unit is electrically connected with a meter reading system. The pulse conversion unit is used for converting wired pulses of the wired pulse water meter into wireless pulses, and the power supply unit is used for providing electric energy required by the meter reading device. The meter reading device can be directly connected to a pulse line of a wired pulse water meter, meter reading can be achieved without wiring and installation of a concentrator, and the meter reading cost of a finite pulse water meter is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulse water meters, and in particular relates to a wired pulse water meter reading device. Background Art

[0002] Wired pulse water meters transmit pulse signals via cables to a concentrator (or data collector), which acts as a receiver to receive and process these pulse signals. In a system, only one concentrator may be needed to receive pulse signals from multiple wired pulse water meters. The concentrator collects meter data periodically or in real time and uploads it to a remote data center or management system via wired or wireless means. However, in some special cases, such as large-scale systems, widely distributed water meters, or the need for higher-level data aggregation and management, multiple receivers may be required to receive the pulse signals. These receivers can consist of multiple concentrators, located in different areas or floors, each responsible for receiving meter data within a certain range and aggregating and uploading the data to a higher-level data center. However, for meter reading methods that require additional concentrators, wiring and installation of the concentrators are required before meter reading can begin. This wiring and installation process is relatively complex and costly. Utility Model Content

[0003] The utility model aims to provide a wired pulse water meter reading device, which can be directly connected to the pulse line of the wired pulse water meter, and can read the meter without wiring and installing a concentrator, thereby reducing the meter reading cost of the limited pulse water meter.

[0004] The technical solution adopted by the present invention to solve its technical problems is to propose a wired pulse water meter reading device, including a pulse conversion unit, a transmission unit, a control unit, and a power supply unit; one end of the control unit is electrically connected to the pulse conversion unit, and the other end is electrically connected to the transmission unit, the pulse conversion unit is electrically connected to the transmission unit, the pulse conversion unit is electrically connected to the pulse line of the wired pulse water meter, the transmission unit is electrically connected to the meter reading system, the pulse conversion unit is used to convert the wired pulse of the wired pulse water meter into wireless pulses, and the power supply unit is used to provide the electric energy required by the meter reading device.

[0005] In an embodiment of the present application, the pulse conversion unit includes a wiring block for electrically connecting to the pulse line of the wired pulse water meter, and a conversion circuit integrated on the chip; the wiring block is provided with multiple interfaces, the wiring is electrically connected to the conversion circuit, and the conversion circuit is connected to the transmission unit.

[0006] In an embodiment of the present application, a protection circuit is further provided between the wiring block and the conversion circuit.

[0007] In an embodiment of the present application, the conversion circuit includes a first resistor, a second resistor, a third resistor and a photoelectric coupler, the first end of the first resistor is electrically connected to the protection circuit and the first end of the photoelectric coupler, the first end of the second resistor is electrically connected to the second end of the photoelectric coupler, the first end of the third resistor is electrically connected to the third end of the photoelectric coupler, and the fourth end of the photoelectric coupler is electrically connected to the transmission unit.

[0008] In the embodiment of the present application, there are two conversion circuits, a first wiring point and a second wiring point are provided on the protection circuit, and the two conversion circuits are electrically connected to the first wiring point and the second wiring point respectively.

[0009] In an embodiment of the present application, the protection circuit includes a first diode, a second diode, a third diode, a fourth diode, a first transient voltage suppressor, a second transient voltage suppressor, and a third transient voltage suppressor; the positive electrode of the first diode is grounded, the negative electrode of the first diode is electrically connected to the wiring block, the positive electrode of the second diode is grounded, the negative electrode of the second diode is electrically connected to the wiring block, the positive electrode of the third diode is a first wiring point, the negative electrode of the third diode is electrically connected to the negative electrode of the first diode, the positive electrode of the fourth diode is a second wiring point, the negative electrode of the fourth diode is electrically connected to the negative electrode of the second diode, the first end of the first transient voltage suppressor is grounded, and the second end is electrically connected to the negative electrode of the third diode, the first end of the second transient voltage suppressor is electrically connected to the negative electrode of the third diode, and the second end is electrically connected to the negative electrode of the fourth diode, the first end of the third transient voltage suppressor is electrically connected to the negative electrode of the fourth diode, and the second end is grounded.

[0010] In the embodiment of the present application, the number of the interfaces is equal to the number of the connection points.

[0011] In an embodiment of the present application, the control unit includes an MCU control mainboard.

[0012] In the embodiment of the present application, the transmission unit is Bluetooth.

[0013] In the embodiment of the present application, the power supply unit is a lithium battery.

[0014] The beneficial effects of the utility model are:

[0015] 1. The utility model proposes a wired pulse water meter reading device. One end of the control unit is electrically connected to a pulse conversion unit, and the other end is electrically connected to a transmission unit. The pulse conversion unit is electrically connected to the transmission unit, and the pulse conversion unit is electrically connected to the pulse line of the wired pulse water meter. The transmission unit is electrically connected to the meter reading system. The wired pulse signal emitted by the wired pulse water meter is converted into a wireless pulse signal by the pulse conversion unit, and then transmitted to the meter reading system by the transmission unit, thereby enabling meter reading of the wired pulse water meter. The meter reading device can be directly connected to the pulse line of the wired pulse water meter, eliminating the need for wiring and installation of a concentrator, thereby reducing the meter reading cost of limited pulse water meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the present invention, but not all. Those skilled in the art can derive other drawings from these drawings without inventive effort.

[0017] Figure 1 This is a schematic diagram of a wired pulse water meter reading device according to an embodiment of the present utility model;

[0018] Figure 2 The figure is a schematic diagram of a pulse conversion unit of a wired pulse water meter reading device according to an embodiment of the present invention.

[0019] In the figure: 1. Pulse conversion unit; 11. Wiring block; 12. Conversion circuit; 121. First resistor; 122. Second resistor; 123. Third resistor; 124. Photocoupler; 13. Protection circuit; 131. First diode; 132. Second diode; 133. Third diode; 134. Fourth diode; 135. First transient voltage suppressor; 136. Second transient voltage suppressor; 137. Third transient voltage suppressor; 2. Transmission unit; 3. Control unit; 4. Power supply unit. DETAILED DESCRIPTION

[0020] To more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following describes specific embodiments of the present invention with reference to the accompanying drawings. Obviously, the drawings described below are merely examples of the present invention. A person skilled in the art can, without inventive effort, derive other drawings and other embodiments from these drawings. Furthermore, design orientations only represent relative positional relationships between components, not absolute positional relationships.

[0021] The utility model embodiment provides a wired pulse water meter reading device, please refer to Figure 1 、 Figure 2 It mainly includes a pulse conversion unit 1, a transmission unit 2, a control unit 3, and a power supply unit 4.

[0022] In one possible implementation, the meter reading device includes a pulse conversion unit 1, a transmission unit 2, a control unit 3, and a power supply unit 4; one end of the control unit 3 is electrically connected to the pulse conversion unit 1, and the other end is electrically connected to the transmission unit 2, the pulse conversion unit 1 is electrically connected to the transmission unit 2, the pulse conversion unit 1 is electrically connected to the pulse line of the wired pulse water meter, and the transmission unit 2 is electrically connected to the meter reading system. The wired pulse signal emitted by the wired pulse water meter is converted into a wireless pulse signal by the pulse conversion unit 1, and then transmitted to the meter reading system by the transmission unit 2, thereby realizing the meter reading of the wired pulse water meter. Compared with the existing wired pulse water meter that requires the addition of a concentrator to perform meter reading, the meter reading device of the present application can be directly connected to the pulse line of the wired pulse water meter, and the meter can be read without the need for wiring and installation of the concentrator, thereby reducing the meter reading cost of the limited pulse water meter.

[0023] In one possible implementation, the pulse conversion unit 1 includes a wiring block 11 and a conversion circuit 12. The wiring block 11 is provided with multiple interfaces, which are used to connect the pulse lines of the wired pulse water meter. A grounding wire is provided on the wiring block 11. The wiring block 11 is electrically connected to the conversion circuit 12, and the conversion circuit 12 is electrically connected to the transmission unit 2. The conversion circuit 12 will convert the wired pulse signal emitted by the wired pulse water meter into a wireless pulse signal, which is then transmitted to the meter reading system by the transmission unit 2, thereby realizing the meter reading of the wired pulse water meter.

[0024] Furthermore, in order to ensure the safety of the entire meter reading process of the wired pulse water meter, a protection circuit 13 is provided between the wiring block 11 and the conversion circuit 12 .

[0025] In one embodiment, the conversion circuit 12 includes a first resistor 121, a second resistor 122, a third resistor 123, and a photocoupler 124. The first end of the first resistor 121 is electrically connected to the protection circuit 13 and the first end of the photocoupler 124. The first end of the second resistor 122 is electrically connected to the second end of the photocoupler 124. The first end of the third resistor 123 is electrically connected to the third end of the photocoupler 124. The fourth end of the photocoupler 124 is electrically connected to the transmission unit 2. The provision of the photocoupler 124 prevents interference from other electrical signals within the meter reading device when the wired pulse signal is converted into a wireless pulse signal, thereby ensuring the accuracy of the meter reading result.

[0026] Furthermore, two conversion circuits 12 are provided, and a first connection point and a second connection point are provided on the protection circuit 13. The two conversion circuits 12 are electrically connected to the first connection point and the second connection point respectively. One protection circuit 13 can support two conversion circuits 12, thereby saving the production cost of the meter reading device.

[0027] In one embodiment, the protection circuit 13 includes a first diode 131, a second diode 132, a third diode 133, a fourth diode 134, a first transient voltage suppressor 135, a second transient voltage suppressor 136, and a third transient voltage suppressor 137; the anode of the first diode 131 is grounded, the cathode of the first diode 131 is electrically connected to the wiring block 11, the anode of the second diode 132 is grounded, the cathode of the second diode 132 is electrically connected to the wiring block 11, the anode of the third diode 133 is the first wiring point, and the cathode of the third diode 134 is the second wiring point. The cathode of the fourth diode 134 is electrically connected to the cathode of the second diode 132, the cathode of the fourth diode 134 is electrically connected to the cathode of the second diode 132, the first end of the first transient voltage suppressor 135 is grounded, and the second end is electrically connected to the cathode of the third diode 133, the first end of the second transient voltage suppressor 136 is electrically connected to the cathode of the third diode 133, and the second end is electrically connected to the cathode of the fourth diode 134, and the first end of the third transient voltage suppressor 137 is electrically connected to the cathode of the fourth diode 134, and the second end is grounded.

[0028] Specifically, the number of interfaces is equal to the number of connection points.

[0029] In one embodiment, the control unit 3 includes an MCU control mainboard, which converts the wired pulse signal emitted by the wired pulse water meter into a wireless pulse signal through the pulse conversion unit 1, and then transmits it to the meter reading system through the transmission unit 2.

[0030] In one embodiment, the transmission unit 2 can select different communication modes according to actual needs, such as Bluetooth, WIFI, Lora-WAN, NB_IOT, etc.

[0031] In one possible implementation, the power supply unit 4 is a lithium battery, which is used for power supply, thereby avoiding the trouble of difficult construction of wired power supply.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific embodiments of the present invention are not limited to these descriptions. For those skilled in the art of the present invention, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. A wired pulse water meter reading device, characterized in that: The invention comprises a pulse conversion unit (1), a transmission unit (2), a control unit (3), and a power supply unit (4); one end of the control unit (3) is electrically connected to the pulse conversion unit (1), and the other end is electrically connected to the transmission unit (2); the pulse conversion unit (1) is electrically connected to the transmission unit (2); the pulse conversion unit (1) is electrically connected to the pulse line of the wired pulse water meter; the transmission unit (2) is electrically connected to the meter reading system; the pulse conversion unit (1) is used to convert the wired pulse of the wired pulse water meter into wireless pulse; the power supply unit (4) is used to provide the electric energy required by the meter reading device.

2. A wired pulse water meter reading device according to claim 1, characterized in that: The pulse conversion unit (1) comprises a wiring block (11) for electrically connecting to a pulse line of a wired pulse water meter, and a conversion circuit (12) integrated on a chip; the wiring block (11) is provided with a plurality of interfaces, the wiring block (11) is electrically connected to the conversion circuit (12), and the conversion circuit (12) is electrically connected to the transmission unit (2).

3. A wired pulse water meter reading device according to claim 2, characterized in that: A protection circuit (13) is also provided between the junction block (11) and the conversion circuit (12).

4. A wired pulse water meter reading device according to claim 3, characterized in that: The conversion circuit (12) includes a first resistor (121), a second resistor (122), a third resistor (123) and a photoelectric coupler (124), wherein a first end of the first resistor (121) is electrically connected to the protection circuit (13) and a first end of the photoelectric coupler (124), a first end of the second resistor (122) is electrically connected to a second end of the photoelectric coupler (124), a first end of the third resistor (123) is electrically connected to a third end of the photoelectric coupler (124), and a fourth end of the photoelectric coupler (124) is electrically connected to the transmission unit (2).

5. A wired pulse water meter reading device according to claim 4, characterized in that: Two conversion circuits (12) are provided, a first wiring point and a second wiring point are provided on the protection circuit (13), and the two conversion circuits (12) are electrically connected to the first wiring point and the second wiring point respectively.

6. A wired pulse water meter reading device according to claim 5, characterized in that: The protection circuit (13) includes a first diode (131), a second diode (132), a third diode (133), a fourth diode (134), a first transient voltage suppressor (135), a second transient voltage suppressor (136), and a third transient voltage suppressor (137); the anode of the first diode (131) is grounded, the cathode of the first diode (131) is electrically connected to the wiring block (11), the anode of the second diode (132) is grounded, the cathode of the second diode (132) is electrically connected to the wiring block (11), the anode of the third diode (133) is a first wiring point, and the third diode (133) The cathode of the first diode (131) is electrically connected to the cathode of the first diode (131), the anode of the fourth diode (134) is the second wiring point, the cathode of the fourth diode (134) is electrically connected to the cathode of the second diode (132), the first end of the first transient voltage suppressor (135) is grounded, and the second end is electrically connected to the cathode of the third diode (133), the first end of the second transient voltage suppressor (136) is electrically connected to the cathode of the third diode (133), and the second end is electrically connected to the cathode of the fourth diode (134), the first end of the third transient voltage suppressor (137) is electrically connected to the cathode of the fourth diode (134), and the second end is grounded.

7. A wired pulse water meter reading device according to claim 6, characterized in that: The number of the interfaces is equal to the number of the connection points.

8. The wired pulse water meter reading device according to claim 1, characterized in that: The control unit (3) comprises an MCU control mainboard.

9. The wired pulse water meter reading device according to claim 1, characterized in that: The transmission unit (2) is Bluetooth.

10. The wired pulse water meter reading device according to claim 1, characterized in that: The power supply unit (4) is a lithium battery.

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