Water meter fault detection system and method

Abstract

The present invention provides a water meter fault detection system and method. The system comprises: a water meter including a transmission mechanism, a magnetic element, and a signaling device; the transmission mechanism is configured to drive the magnetic element to reciprocate past the signaling device when water flows through the water meter, thereby changing the state of the signaling device; a signal line comprising four signal lines, two of which are connected in parallel and have one end connected to one end of the signaling device, and the other two signal lines are connected in parallel and have one end connected to the other end of the signaling device; a water controller, the other ends of the four signal lines being connected to the water controller; and a valve, a control signal connection between the valve and the water controller. The water controller is configured to control the state of the valve to control whether water flows through the water meter. Under different valve states, the signal line and the signaling device are detected to determine whether they are functioning properly based on whether the circuit formed by the signal lines is connected and whether a signal signal from the water meter is received. The present invention accurately locates water meter faults, facilitates maintenance, and improves maintenance efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of fault detection, and in particular to a water meter fault detection system and method. Background Art

[0002] A traditional water meter consists of a case, meter head, metering chamber, transmission mechanism, magnetic element, and electrical signal transmission. This electrical signal transmission section can utilize a reed switch or Hall effect element. The electrical signal transmission principle of a traditional water meter is that the transmission mechanism drives the magnetic element back and forth across the reed switch, causing it to repeatedly open and close. The water controller then detects the continuity of the signal line to determine whether a signal is present.

[0003] A traditional water meter fault detection system includes a wiring logic diagram for the water controller, water meter, and valve. Two signal lines connect the water controller and reed switch, forming a circuit. Two signal lines connect the water controller and valve, forming a circuit. After the water controller opens the valve, it counts the number of signal signals to calculate the water volume. In this water meter mode, if the water controller receives a signal after opening the valve, the meter is considered normal. If it does not receive a signal, it cannot determine whether the fault lies in the electrical signal transmission component within the water meter or in the wiring between the meter and the controller.

[0004] Existing water meters only provide a signal transmission function, and it is impossible to determine whether the external wiring circuit or the internal signal transmission device is damaged through the signal transmission, which brings uncertainty to maintenance and low maintenance efficiency. Summary of the Invention

[0005] The present invention provides a water meter fault detection system and method, which are used to solve the defects of the prior art that water meter faults cannot be located and maintenance is inconvenient, and can accurately locate water meter faults and facilitate maintenance.

[0006] The present invention provides a water meter fault detection system, comprising:

[0007] A water meter comprising a transmission mechanism, a magnetic element and a signal transmitting device;

[0008] The transmission mechanism is used to drive the magnetic element to reciprocate through the signal-emitting device when water flows through the water meter, thereby changing the state of the signal-emitting device;

[0009] signal lines, the signal lines comprising a first signal line, a second signal line, a third signal line, and a fourth signal line;

[0010] The first signal line and the third signal line are connected in parallel and one end of each is connected to one end of the signal transmitting device; the second signal line and the fourth signal line are connected in parallel and one end of each is connected to the other end of the signal transmitting device;

[0011] a water controller, the other ends of the first signal line, the second signal line, the third signal line, and the fourth signal line being connected to the water controller;

[0012] A valve, wherein a control signal is connected between the valve and the water controller;

[0013] The water controller is used to control the state of the valve to control whether water flows through the water meter, and detect whether the signal line and the signal transmitting device are normal under different states of the valve.

[0014] According to a water meter fault detection system provided by the present invention, the water controller is used to:

[0015] When the valve is in a closed state, detecting whether the circuit formed by the signal line is connected;

[0016] When the valve is in the open state, whether the signal line is normal and whether the signal transmitting device is normal are determined again based on whether the signal signal from the water meter is received and whether the circuit is connected.

[0017] According to a water meter fault detection system provided by the present invention, the water controller is used to:

[0018] When the valve is in a closed state, it is detected whether a circuit formed by the first signal line and the third signal line is connected, and whether a circuit formed by the second signal line and the fourth signal line is connected.

[0019] According to a water meter fault detection system provided by the present invention, the water controller is used to:

[0020] When the valve is in the open state, if the signal from the water meter is received and at least one circuit is detected to be disconnected when the valve is in the closed state, it is known that one signal line in the disconnected circuit is broken and the other signal line is normal;

[0021] When the valve is in an open state, if no signal from the water meter is received, and when the valve is in a closed state, at least one circuit is detected to be disconnected, then two signal lines in the at least one disconnected circuit are disconnected;

[0022] If no signal from the water meter is received when the valve is open, and if both circuits are detected to be connected when the valve is closed, it is determined that the signal transmitting device is abnormal.

[0023] The water meter fault detection method provided by the present invention based on any of the above-mentioned water meter fault detection systems includes:

[0024] Control valves to different states;

[0025] In different states of the valve, check whether the signal line and the signal transmitting device are normal.

[0026] According to a water meter fault detection method provided by the present invention, the water controller is used to:

[0027] The detection of whether the signal line and the signal transmitting device are normal under different states of the valve includes:

[0028] When the valve is in a closed state, detecting whether the circuit formed by the signal line is connected;

[0029] When the valve is in the open state, whether the signal line is normal and whether the signal transmitting device is normal are determined again based on whether the signal signal from the water meter is received and whether the circuit is connected.

[0030] According to a water meter fault detection method provided by the present invention, detecting whether the circuit formed by the signal line is connected includes:

[0031] It is detected whether a loop formed by the first signal line and the third signal line is connected, and whether a loop formed by the second signal line and the fourth signal line is connected.

[0032] According to a water meter fault detection method provided by the present invention, determining again whether the signal line is normal based on whether the signal signal from the water meter is received and whether the circuit is connected includes:

[0033] If the signal from the water meter is received and at least one circuit is detected to be disconnected when the valve is closed, it is known that one signal line in the disconnected circuit is broken and the other signal line is normal.

[0034] According to a water meter fault detection method provided by the present invention, determining again whether the signal line is normal based on whether the signal signal from the water meter is received and whether the circuit is connected includes:

[0035] If the signal from the water meter is not received and at least one circuit is detected to be disconnected when the valve is closed, two signal lines in the at least one disconnected circuit are disconnected.

[0036] According to a water meter fault detection method provided by the present invention, determining whether the signal transmitting device is normal includes:

[0037] If no signal from the water meter is received when the valve is open, and if both circuits are detected to be connected when the valve is closed, it is determined that the signal transmitting device is abnormal.

[0038] The water meter fault detection system and method provided by the present invention add a wiring line for transmitting a signal to a traditional water meter. When the valve is in different states, the four signal lines between the signal transmitting device and the water controller are detected, and the wiring between the signal transmitting device and the water controller and whether the signal transmitting device is normal are automatically determined. This allows for timely and accurate positioning of water meter faults, facilitates maintenance, and improves maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a wiring logic diagram of a water controller, a water meter, and a valve in a water meter fault detection system provided by the present invention;

[0041] Figure 2 It is a flow chart of the water meter fault detection method provided by the present invention.

[0042] 1: First signal line; 2: Second signal line; 3: Third signal line; 4: Fourth signal line; 5: Water meter; 51: Signal transmitter; 6: Water controller; 7: Valve. DETAILED DESCRIPTION

[0043] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0044] The following combination Figure 1 The present invention describes a water meter fault detection system, comprising: a water meter 5, wherein the water meter 5 comprises a transmission mechanism, a magnetic element and a signal transmitting device 51;

[0045] The transmission mechanism is used to drive the magnetic element to reciprocate through the signal-emitting device 51 when water flows through the water meter, thereby changing the state of the signal-emitting device 51;

[0046] In this embodiment, the signaling device 51, such as a reed switch or Hall effect element, functions as a switch. When the valve is open, water flows through the water meter, and the transmission mechanism drives the magnetic element back and forth past the signaling device 51. This causes the signaling device 51 to repeatedly switch between the on and off states, and the water meter transmits a signal to the water controller 6 via a signal line. This signal indicates that the water meter is operating. When the valve is closed, the magnetic element remains stationary, and the signaling device 51 remains in either the on or off state.

[0047] Optionally, the transmission mechanism is an impeller and the magnetic element is a magnet.

[0048] Signal lines, the signal lines comprising a first signal line 1, a second signal line 2, a third signal line 3 and a fourth signal line 4;

[0049] This embodiment adds a third signal line 3 and a fourth signal line 4 to a conventional water meter for transmitting the signal. Conventional water meters have only one signal line between the signal transmitter 51 and the water controller 6: the first signal line 1 and the second signal line 2. The first signal line 1, the second signal line 2, the signal transmitter 51, and the water controller 6 form a circuit.

[0050] The first signal line 1 and the third signal line 3 are connected in parallel and one end is connected to one end of the signal transmitting device 51, and the second signal line 2 and the fourth signal line 4 are connected in parallel and one end is connected to the other end of the signal transmitting device 51;

[0051] a water controller 6, the other ends of the first signal line 1, the second signal line 2, the third signal line 3 and the fourth signal line 4 being connected to the water controller 6;

[0052] Valve 7, a control signal connection between the valve 7 and the water controller 6;

[0053] Valve 7 controls whether water flows through water meter 5. When valve 7 is closed, the water flow is cut off and does not pass through water meter 5. When valve 7 is open, water flows through water meter 5. There is a connection between water controller 6 and valve 7, namely two signal lines. These two signal lines, valve 7, and water controller 6 form a circuit.

[0054] The water controller 6 is used to send a control signal to the valve to control the state of the valve 7 to control whether the water flows through the water meter 5. Under different states of the valve 7, it detects whether the signal line and the signal transmitting device 51 are normal.

[0055] The state of the valve 7 includes a closed state and an open state. The water controller 6 sends instructions to the valve 7 through a signal line to control the state of the valve 7.

[0056] When valve 7 is closed, the circuit formed by the signal line is detected to see if it is connected; when valve 7 is open, based on the detection result when valve 7 is closed and whether the signal from the water meter is received, it is determined whether the signal line and the signal transmitting device 51 are normal.

[0057] The water controller 6 feeds back the test results to the management system, prompting maintenance personnel to solve the problem in time, ensuring the normal operation of the water meter and reducing losses. The water meter 5 is used in conjunction with the water controller 6 and the management system, mainly for water consumption control statistics in public places.

[0058] This embodiment adds a wiring line for transmitting a signal to the traditional water meter. When the valve is in different states, the four signal lines between the signal transmitting device and the water controller are tested to automatically determine whether the wiring between the signal transmitting device and the water controller is normal and whether the signal transmitting device is normal. This allows for timely and accurate location of water meter faults, facilitates maintenance, and improves maintenance efficiency.

[0059] On the basis of the above embodiment, the water controller 6 in this embodiment is used to: when the valve 7 is closed, detect whether the circuit formed by the signal line is connected;

[0060] When the valve is closed, no water flows through the water meter 5. Normally, no signal from the water meter 5 is received to detect whether the circuit formed by the signal line is connected.

[0061] When the valve 7 is in the open state, whether the signal line is normal and whether the signal transmitting device 51 is normal are determined again based on whether the signal from the water meter 5 is received and whether the circuit is connected.

[0062] When valve 7 is open, water flows through water meter 5, and under normal circumstances, a signal from water meter 5 can be received. Based on whether the circuit is connected when valve 7 is closed and whether the signal from water meter 5 is received when valve 7 is open, the signal line and the signal transmitting device 51 are tested to be normal.

[0063] On the basis of the above embodiment, the water controller 6 in this embodiment is used to detect whether the circuit formed by the first signal line 1 and the third signal line 3 is connected, and whether the circuit formed by the second signal line 2 and the fourth signal line 4 is connected when the valve 7 is closed.

[0064] like Figure 1As shown, when valve 7 is closed, no water flows through the water meter. In this case, regardless of whether signal transmitter 51 remains in the on or off state, the first signal line 1, the third signal line 3, and the water controller 6 form a loop, and the second signal line 2, the fourth signal line 4, and the water controller 6 form a loop, and the water controller 6 receives no signal. The connectivity of each loop is checked to determine whether any loop is disconnected.

[0065] If the loop formed by the first signal line 1 and the third signal line 3 is connected, it means that the connection between the water controller 6 and one end of the signal transmitting device 51 is normal; if it is not connected, it means that at least one of the circuit connections is disconnected, which may affect the water controller 6 from receiving the signal from the water meter.

[0066] If the loop formed by the second signal line 2 and the fourth signal line 4 is connected, it means that the connection between the water controller 6 and the other end of the signal transmitting device 51 is normal; if it is not connected, it means that the loop connection is disconnected, which may affect the water controller 6 from receiving the signal from the water meter.

[0067] Loop detection can only determine whether the loop wiring is disconnected, but cannot determine which specific wire in each loop is disconnected or whether both wires are disconnected.

[0068] Based on the above embodiment, the water controller 6 in this embodiment is configured to: when the valve 7 is in the open state, if a signal from the water meter 5 is received and at least one circuit is detected to be disconnected when the valve 7 is in the closed state, then it is determined that one signal line in the disconnected circuit is broken and the other signal line is normal;

[0069] When the valve 7 is open, water flows through the water meter 5. In this case, if the water controller 6 receives the signal from the water meter 5 and detects a circuit break when the valve 7 is closed, it means that part of the signal line in the circuit is broken.

[0070] For example, when receiving the signal from the water meter 5, detecting that the second signal line 2 and the fourth signal line 4 are normal, and the loop formed by the first line 1 and the third signal line 3 is disconnected, only one signal line in the disconnected loop can be broken to form a loop including the signal transmitting device 51, and the water controller 6 can receive the signal from the water meter.

[0071] When receiving the signal from the water meter 5 and detecting that the first signal line 1 and the third signal line 3 are normal and the circuit formed by the second signal line 2 and the fourth signal line 4 is disconnected, only one signal line in the disconnected circuit can be broken to form a circuit including the signal transmitting device 51, and the water controller 6 can receive the signal from the water meter 5.

[0072] When receiving the signal from the water meter 5, it is detected that the circuit formed by the second signal line 2 and the fourth signal line 4 is broken, and the circuit formed by the first line 1 and the third signal line 3 is disconnected, only one signal line in each disconnected circuit can be broken to form a circuit containing the signal transmitting device 51, and the water controller 6 can receive the signal from the water meter.

[0073] When the valve 7 is in the open state, if the signal from the water meter 5 is not received, and when the valve 7 is in the closed state, at least one circuit is detected to be disconnected, then the two signal lines in the at least one disconnected circuit are disconnected;

[0074] For example, when the valve 7 is open, if the signal from the water meter 5 is not received, and the second signal line 2 and the fourth signal line 4 are detected to be normal, and the loop formed by the first line 1 and the third signal line 3 is disconnected, both signal lines in the disconnected loop are broken, and a loop including the signaling device 51 cannot be formed, and the water controller 6 cannot receive the signal from the water meter 5.

[0075] When the valve 7 is in the open state, if the signal from the water meter 5 is not received, and the first signal line 1 and the third signal line 3 are detected to be normal, and the circuit formed by the second signal line 2 and the fourth signal line 4 is disconnected, both signal lines in the disconnected circuit are broken, and the circuit including the signal transmitting device 51 cannot be formed, and the water controller 6 cannot receive the signal from the water meter 5.

[0076] When the valve 7 is in the open state, if the signal from the water meter 5 is received, it is detected that the circuit formed by the second signal line 2 and the fourth signal line 4 is broken, and the circuit formed by the first line 1 and the third signal line 3 is disconnected, then both signal lines in at least one of the disconnected circuits are broken, and the circuit containing the signal transmitting device 51 cannot be formed, and the water controller 6 cannot receive the signal from the water meter 5.

[0077] If no signal is received from the water meter 5 when the valve 7 is open, and both circuits are detected to be connected when the valve 7 is closed, it is known that the signal transmitting device 51 is abnormal.

[0078] When the valve 7 is open, if the water controller 6 does not receive the signal from the water meter 5 and detects that both circuits are connected when the valve 7 is closed, it means that the electrical signal transmitting part is abnormal.

[0079] The following combination Figure 2 The water meter fault detection method according to the present invention based on any of the above water meter fault detection system embodiments includes: step 201, controlling the valve to different states;

[0080] The valve status includes closed state and open state. The water controller sends instructions to the valve through the control signal line to control the valve status.

[0081] Step 202: Check whether the signal line and the signal transmitting device are normal in different states of the valve.

[0082] When the valve is closed, detect whether the circuit formed by the signal line is connected; when the valve is open, judge whether the signal line and the signal transmitting device are normal based on the detection result when the valve is closed and whether the signal from the water meter is received.

[0083] This embodiment detects the four signal lines between the signal transmitting device and the water controller when the valve is in different states, and automatically determines whether the wiring between the signal transmitting device and the water controller is normal and whether the signal transmitting device is normal, thereby achieving timely and accurate positioning of water meter faults, facilitating maintenance, and improving maintenance efficiency.

[0084] Based on the above embodiment, the present embodiment detects whether the signal line and the signal transmitting device are normal in different states of the valve, including: when the valve is closed, detecting whether the circuit formed by the signal line is connected; when the valve is open, determining again whether the signal line is normal and whether the signal transmitting device is normal based on whether the signal from the water meter is received and whether the circuit is connected.

[0085] Based on the above embodiment, the detecting whether the loop formed by the signal lines is connected in this embodiment includes: detecting whether the loop formed by the first signal line and the third signal line is connected, and whether the loop formed by the second signal line and the fourth signal line is connected.

[0086] Based on the above embodiment, the present embodiment further determines whether the signal line is normal based on whether the signal signal from the water meter is received and whether the circuit is connected, including: if the signal signal from the water meter is received and at least one circuit is detected to be disconnected when the valve is closed, it is determined that one signal line in the disconnected circuit is broken and the other signal line is normal.

[0087] Based on the above embodiment, the present embodiment further determines whether the signal line is normal based on whether the signal signal from the water meter is received and whether the circuit is connected, including: if the signal signal from the water meter is not received and at least one circuit is detected to be disconnected when the valve is closed, then two signal lines in the at least one disconnected circuit are disconnected.

[0088] Based on the above embodiment, the determination of whether the signal transmitting device is normal in this embodiment includes: when the valve is in the open state, if the signal transmitting signal of the water meter is not received, and when the valve is in the closed state, it is detected that both circuits are connected, then it is known that the signal transmitting device is abnormal.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A water meter fault detection system, characterized in that: include: A water meter comprising a transmission mechanism, a magnetic element and a signal transmitting device; The transmission mechanism is used to drive the magnetic element to reciprocate through the signal-emitting device when water flows through the water meter, thereby changing the state of the signal-emitting device; signal lines, the signal lines comprising a first signal line, a second signal line, a third signal line, and a fourth signal line; The first signal line and the third signal line are connected in parallel and one end of each is connected to one end of the signal transmitting device; the second signal line and the fourth signal line are connected in parallel and one end of each is connected to the other end of the signal transmitting device; a water controller, the other ends of the first signal line, the second signal line, the third signal line, and the fourth signal line being connected to the water controller; A valve, wherein a control signal is connected between the valve and the water controller; The water controller is used to control the state of the valve to control whether water flows through the water meter, and detect whether the signal line and the signal transmitting device are normal under different states of the valve; The water controller is used for: When the valve is in a closed state, detecting whether the circuit formed by the signal line is connected; When the valve is in the open state, whether the signal line is normal and whether the signal transmitting device is normal are determined again based on whether the signal signal from the water meter is received and whether the circuit is connected.

2. The water meter fault detection system according to claim 1, characterized in that: The water controller is used for: When the valve is in a closed state, it is detected whether a circuit formed by the first signal line and the third signal line is connected, and whether a circuit formed by the second signal line and the fourth signal line is connected.

3. The water meter fault detection system according to claim 2, characterized in that: The water controller is used for: When the valve is in the open state, if the signal from the water meter is received and at least one circuit is detected to be disconnected when the valve is in the closed state, it is known that one signal line in the disconnected circuit is broken and the other signal line is normal; When the valve is in an open state, if no signal from the water meter is received, and when the valve is in a closed state, at least one circuit is detected to be disconnected, then two signal lines in the at least one disconnected circuit are disconnected; If no signal from the water meter is received when the valve is open, and if both circuits are detected to be connected when the valve is closed, it is determined that the signal transmitting device is abnormal.

4. A water meter fault detection method based on the water meter fault detection system according to any one of claims 1 to 3, comprising: Control valves to different states; In different states of the valve, check whether the signal line and the signal transmitting device are normal.

5. The water meter fault detection method according to claim 4, characterized in that: The detection of whether the signal line and the signal transmitting device are normal under different states of the valve includes: When the valve is in a closed state, detecting whether the circuit formed by the signal line is connected; When the valve is in the open state, whether the signal line is normal and whether the signal transmitting device is normal are determined again based on whether the signal from the water meter is received and whether the circuit is connected.

6. The water meter fault detection method according to claim 5, characterized in that: The detecting whether the loop formed by the signal line is connected includes: It is detected whether a loop formed by the first signal line and the third signal line is connected, and whether a loop formed by the second signal line and the fourth signal line is connected.

7. The water meter fault detection method according to claim 6, characterized in that: The step of determining whether the signal line is normal again based on whether the signal signal from the water meter is received and whether the circuit is connected includes: If the signal from the water meter is received and at least one circuit is detected to be disconnected when the valve is closed, it is known that one signal line in the disconnected circuit is broken and the other signal line is normal.

8. The water meter fault detection method according to claim 6, characterized in that: The step of determining whether the signal line is normal again based on whether the signal signal from the water meter is received and whether the circuit is connected includes: If the signal from the water meter is not received and at least one circuit is detected to be disconnected when the valve is closed, two signal lines in the at least one disconnected circuit are disconnected.

9. The water meter fault detection method according to claim 6, characterized in that: Determining whether the signal transmitting device is normal includes: If no signal from the water meter is received when the valve is open, and if both circuits are detected to be connected when the valve is closed, it is determined that the signal transmitting device is abnormal.

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