CN111879371B - Intelligent water meter based on new communication mode meter reading - Google Patents
Intelligent water meter based on new communication mode meter reading Download PDFInfo
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- CN111879371B CN111879371B CN202010766408.5A CN202010766408A CN111879371B CN 111879371 B CN111879371 B CN 111879371B CN 202010766408 A CN202010766408 A CN 202010766408A CN 111879371 B CN111879371 B CN 111879371B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- 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
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- 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
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
- G01F15/024—Compensating or correcting for variations in pressure, density or temperature using electrical means involving digital counting
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Abstract
The invention discloses an intelligent water meter for reading based on a new communication mode, and belongs to the field of water meters. The invention comprises a water meter body, a controller, a power generation assembly, a pressure detection assembly and a cut-off assembly. The pressure detection component is used for detecting pressure, and the interception component is used for controlling the flow rate of water flow so as to control the change of water pressure. The invention discloses a method for uploading reading of an electric meter. The former level equipment solves the water meter degree through detecting the pressure change and then through realizing the appointed stipulation. According to the invention, the transmission of the driving information of the power generation system of the water meter reduces the inconvenience of communication realized in a wire or wireless mode in the prior art.
Description
The scheme is a division of a patent application for a remote intelligent water meter, and the original application number is 201910414823.1, application date 2019, 05 and 17.
Technical Field
The invention relates to the field of water consumption metering instruments, in particular to an intelligent water meter for reading based on a new communication mode.
Background
In the prior art, because of the wide distribution of water meters, the difficulty of laying electric cables and the like, the meter reading work of the water meters is still finished manually. With the development of wireless communication technology, the uploading of the water meter degrees is realized in a wireless communication mode and is applied to real life. The intelligent water meter realizes the communication between the intelligent water meter and the remote monitoring terminal regardless of a wired communication mode or a wireless communication mode. Therefore, the company designs and develops an intelligent water meter which realizes water meter communication and water meter degree uploading and is based on a new communication mode for meter reading.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the intelligent water meter based on the new communication mode meter reading can realize communication without laying wires.
The technical scheme of the technical problem to be solved by the invention is as follows: an intelligent water meter based on new communication mode meter reading comprises: water gauge body, controller and electricity generation subassembly, its characterized in that:
the device comprises a pressure detection assembly and an interception assembly, wherein the pressure detection assembly detects the pressure P and the pressure duration T of water, the interception assembly controls the pressure of water flow in flowing and the pressure duration, and the pressure P and the duration T are used as information carriers, specifically:
different pressures P or different pressure differences δ P represent different numbers;
or, the pressure P for different durations represents different numbers;
setting a register or a variable to store unsent data information;
step A, when the set time for uploading the water meter degrees is reached, the degrees of the water meter to be sent are written into unsent data information for sending;
step B, judging whether the faucet is in an open water using state, namely judging whether the faucet is in a running water state, if so, executing the step C, otherwise, repeating the step B;
step C, judging whether the unsent data information is empty or not,
if not, reading the unsent data information and executing the step D;
if empty, step A is performed.
Step D, according to the method that the water meter sends the degree obtained by the water meter, sending unsent data information;
step 1, starting communication: the interception component carries out interception and keeps an unconcentrated state t2 after the duration t 1;
step 2, data sending: firstly, the number of the meter is sent to carry out interception, the interception state is kept after the duration t3, the number of seconds for which t3 lasts is the number of digits, t2 is the non-interception state,
step 2.2, sending the numerical value of the digit in the step 2.1: the shut-off module shuts off for a time period t4, which is t2, where t4 lasts for a number of seconds, which is the number of digits in step 2.1,
and 2.3, repeatedly executing the step 2.1-the step 2.2N times when the water meter degree is N digits.
Sending unsent data information one by one, and judging whether water flow is interrupted or not;
if not, continuing to send the unsent data information, rewriting the unsent data information after subtracting the sent data information from the unsent data information, and executing the step C;
and if the interruption is carried out and the unsent data information is not sent, rewriting the unsent data information after subtracting the sent data information from the unsent data information, and repeating the step B.
Preferably, the pressure detection assembly is arranged on the inner wall of the flow channel of the water meter body and is electrically connected with the controller for detecting the water pressure.
Preferably, the pressure detection assembly comprises a test tube, a slide block and an inductive switch,
the test tube is communicated with the flow passage of the water meter body, one end of the test tube close to the flow passage of the water meter body is provided with a limit block, the other end of the test tube is provided with a spring, the length direction of the spring is superposed with the length direction of the test tube,
the slide block is arranged in the tube cavity of the test tube between the limiting block and the spring in a sliding manner, the side surface of the slide block, which is in contact with the tube cavity of the test tube, is provided with a trigger module for triggering the induction switch,
the inductive switch is arranged on the outer pipe wall of the test pipe and electrically connected with the controller
Preferably, the closure assembly comprises a cavity communicated with the flow passage of the water meter body, a water baffle arranged in the cavity in a sliding manner, and a driving device arranged outside the cavity,
the water baffle comprises a stress part and a water baffle part which are positioned in the cavity, the stress part is a permanent magnet,
the driving device comprises an iron core and a coil winding wound on the iron core, the iron core of the driving device is superposed with the axial lead of the stress part of the water baffle,
the driving device is electrically connected with the controller.
Preferably, a through hole is formed in the water baffle, and the through hole is communicated with the inside of the cavity and a flow channel of the water meter body.
Preferably, the step 1 further comprises:
and 1.3, repeating the step 1.1n times, wherein the repeated times n are identification numbers or address numbers of the intelligent water meters.
Preferably, in step 1.1, the sum of the duration T1 and the duration T2 is a constant T,
the proportion of the duration T1 to the constant T is the identification number or address number of the intelligent water meter.
The invention has the beneficial effects that:
1. the function of communication between the water meter and the upper-level water supply component can be realized;
2. the function of uploading the reading of the water meter is realized, the breakpoint transmission can be supported, and the transmission can be continued even if the communication is interrupted and the next communication is carried out;
3. the labor intensity of water supply system workers for meter reading in a family-by-family manner is reduced, and the automation of information transmission and water meter control is realized.
Drawings
Figure 1 is an overall schematic view of one embodiment of the invention,
figure 2 is a schematic view of a shutoff assembly according to one embodiment of the invention,
figure 3 is a schematic view of a pressure sensing assembly of one embodiment of the present invention,
figure 4 is a schematic view of a power generation assembly of one embodiment of the present invention,
fig. 5 is a schematic view of a second embodiment of the shutoff assembly of the present invention;
fig. 6 is a schematic view of a third embodiment of the shutoff assembly of the present invention;
figure 7 is a schematic view of a fourth embodiment of the shutoff assembly of the present invention,
FIG. 8 is a flow chart of a method of communication of the present invention;
FIG. 9 is a schematic view of an electrical system of one embodiment of the present invention;
figure 10 is a method of communicating an uploaded water meter reading in accordance with one embodiment of the invention.
In the figure:
200. a controller; 453. a water flow through hole; 452. a valve core; 451. an electromagnetic drive section; 423. a stroke limiting block; 411. a stroke limiting slot; 312. a spring; 311. a limiting block; 330. an inductive switch; 320. a slider; 310. a test tube; 422. a water retaining part; 421. a force receiving portion; 430. a drive device; 420. a water baffle; 410. a cavity; 400. a shut-off assembly; 300. a pressure detection assembly; 100. a water meter body;
Detailed Description
In order to make the technical solution and the advantages of the present invention clearer, the following explains embodiments of the present invention in further detail.
As an intelligent water meter, there are many manufacturers in the prior art to manufacture and apply to the actual field. In the prior art, the intelligent water meter comprises a water meter body 100 and a controller 200, and preferably, some intelligent water meters are further provided with a power generation assembly 500. the water meter body 100 is used for measuring water consumption, and the controller is used as an essential component of an intelligent device and is used for processing data in the intelligent water meter and converting the acquired water consumption data into a specific numerical value. In order to achieve the acquisition of electric energy and reduce the replacement of batteries, the power generation assembly 500 is used for providing power for electric elements such as the controller 200, and the common power generation assembly 500 is a generator embedded in a water pipe, and the rotation shaft of the generator is driven by water flow to rotate so as to achieve power generation. As shown in fig. 1, the invention adopts the principle that after the pressure changes in the same system, the pressures change simultaneously, and the communication is realized by using the pressure changes as the carrier of information, so that the intelligent water meter for reading based on the new communication mode further comprises a pressure detection component 300 and a cut-off component 400. The pressure detecting assembly 300 is used to detect the pressure change, and the shut-off assembly 400 is used to adjust the pressure change by changing the width of the flow passage.
More commonly, the pressure detecting assembly 300 may employ a pressure sensor or a pressure gauge, and the pressure gauge employs a digital pressure gauge. The pressure sensor is arranged on the inner wall of the flow channel of the water meter body 100, or a hole is formed in the flow channel of the water meter body 100, and a short pipeline is arranged at the hole to install the pressure sensor or the pressure gauge. The pressure sensor or gauge is electrically connected to the controller 200 for converting the pressure signal into a digital signal for further processing.
The shut-off assembly 400 is used to control the flow of water, such that the flow rate of the water varies to effect a change in pressure in the water supply system. Among the prior art, the mode that realizes water flow control is comparatively multiple, generally can adopt electric valve, solenoid valve etc. but electric valve needs pivoted actuating mechanism, and the structure is comparatively huge and complicated, and the solenoid valve only break-make two kinds of states can influence user's water when closing.
The invention discloses a cut-off assembly 400 which can cut off water but can not close water supply, and as shown in figure 2, the cut-off assembly comprises a cavity 410 communicated with a flow channel of a water meter body 100, a water baffle 420 arranged in a sliding way in the cavity 410 and a driving device 430 arranged outside the cavity 410. The chamber 410 is a pipe-shaped device with one end closed, and the other end is communicated with the flow passage of the water meter body 100. A water baffle 420 is slidably disposed inside the cavity 410, and the water baffle 420 can slide inside the cavity 410. The water guard plate 420 includes a force receiving portion 421 and a water guard portion 422 inside the cavity 410. Wherein the force-bearing portion 421 is a permanent magnet, and the force-bearing portion 421 is always located inside the cavity 410. The water guard 422 may extend into the interior of the flow passage of the water meter body 100, and after extending into the interior of the flow passage of the water meter body 100, does not slide out of the cavity 410. The driving device 430 is disposed outside the cavity 410, and the driving device 430 includes a core and a coil winding wound on the core. The core of the driving device 430 coincides with the axis of the force receiving portion 421 of the water guard 420. In order to realize electrical control and thus loading of information, the driving device 430 is electrically connected to the controller 200.
In order to drive the force-receiving portion 421, the cavity 410 is made of a non-magnetic material or a non-magnetic material, and preferably made of a high-strength plastic.
Preferably, as shown in fig. 6, in order to ensure the pressure balance between the inside of the cavity 410 and the flow passage of the water meter body 100, a through hole is formed inside the water baffle 420, and the through hole communicates the inside of the cavity 410 and the flow passage of the water meter body 100. Therefore, during sliding, the vacuum formed inside the cavity 410 does not cause the ejection.
Preferably, in order to ensure that the pressure variation is constant, as shown in fig. 5, a stroke limiting groove 411 is provided on an inner wall of the chamber 410 in parallel with the sliding direction of the water guard 420. Correspondingly, the water guard 420 is provided with a stroke limiting block 423, and the stroke limiting block 423 is embedded in the stroke limiting groove 411. The length of the travel limiting slot 411 is less than the inner diameter of the flow passage of the water meter body 100. At this time, the thrust generated by the driving device 430 is set to have a constant thrust when the stroke limiting block 423 is located in the flow passage of the stroke limiting groove 411 close to the water meter body 100. Stable pushing-out of the water guard plate 420 can be ensured.
In addition, the shutoff assembly 400 of the present invention can be obtained by improving the existing solenoid valve, as shown in fig. 7, the shutoff assembly 400 includes a solenoid valve body, the solenoid valve body is provided with an electromagnetic driving portion 451 and a valve core assembly, and the valve core of the valve core assembly is used for blocking water flow, so that the valve core is improved on the basis. As shown in fig. 7, the valve core 452 of the electromagnetic valve is provided with a water flow through hole 453, and the water flow through hole 453 is communicated with two sides of the water flow direction of the flow channel, namely, the water inlet end and the water outlet end of the water flow channel, so that when the valve core blocks the flow channel, the water flow through hole 453 on the valve core can still pass water, namely, the effect of stopping the flow is achieved, and the water use of a user is not affected.
In order to better meet the communication requirement, the pressure detection assembly 300, besides using the pressure sensor and the digital pressure gauge, as shown in fig. 3, also discloses a pressure detection assembly 300, which comprises a test tube 310, a slider 320, and an inductive switch 330.
The end of the test tube 310 close to the flow channel of the water meter body 100 is provided with a limiting block 311, the end far away from the flow channel of the water meter body 100 is provided with a spring 312, and the length direction of the spring 312 is coincided with the length direction of the tube cavity of the test tube 310. The slider 320 is arranged in the tube cavity of the testing tube 310 between the limiting block 311 and the spring 312 in a sliding manner, the slider 320 is used for sensing the pressure of the water pressure, when the pressure of the water pressure is high, the slider 320 overcomes the elasticity of the spring 312 to approach to the end, far away from the flow channel, of the testing tube 310, and when the pressure of the water pressure is low, the slider 320 receives the elasticity of the spring 312 to approach to the end, close to the flow channel, of the testing tube 310. The slider 320 is in sealing contact with the inside of the lumen of the test tube 310.
The inductive switch 330 is used to detect the position of the slider 320, the inductive switch 330 is disposed on the outer wall of the testing tube 310, and the inductive switch 330 is electrically connected to the controller 200. Correspondingly, a triggering module is arranged on the side surface of the slider 320 contacting with the lumen of the test tube 310 for triggering the inductive switch 330. Preferably, the module is triggered and the metal block is conductive, preferably, an iron block is adopted; the inductive switch 330 is a vortex proximity switch.
In the intelligent process of the water meter, the acquisition of electric energy is a big problem, and in order to realize a cable-free communication mode, the invention designs a power generation assembly 500, as shown in fig. 4, which comprises a pipeline 510, a first thermoelectric generation sheet 521, a second thermoelectric generation sheet 522 and a fixing device 530 which are arranged from inside to outside. To increase the effective contact area, the duct 510 may be designed with a flat rectangular cross-section. The first and second thermoelectric generation elements 521 and 522 are respectively disposed on the wide side surfaces of the duct 510, wherein the heat receiving surface of the first thermoelectric generation element 521 is in contact with the duct 510, and the cold receiving surface of the second thermoelectric generation element 522 is in contact with the duct 510. Therefore, the temperature difference can be generated and the temperature difference power generation device can be driven no matter in winter or summer and no matter whether the water temperature in the pipeline is higher than the air temperature or lower than the air temperature. The output ends of the first and second thermoelectric generation pieces 521 and 522 are electrically connected with the controller 200 of the intelligent water meter. If the smart meter is provided with a power module, the power generation assembly 500 can charge the storage battery of the power module through a charging circuit. For example, the model is SP1848-27145, the open circuit voltage of 20 ℃ temperature difference is 0.95V, and the purpose of charging the storage battery by voltage doubling can be realized by adopting a series connection mode. Even if the difference between the water temperature in summer and the room temperature can be close to 20 ℃ and the difference is small in winter, the charging can still be realized through the cascade connection and the boosting module. The fixture 530 is a rectangular strip of thermally insulating material. Through holes are formed at both ends of the fixing device 530. The two fixing devices 530 are provided, and the two fixing devices 530 are fixedly connected through bolts to fix the first and second thermoelectric generation elements 521 and 522.
Based on the structure, the method for realizing the communication comprises the following steps:
the method for receiving data comprises the following steps:
the pressure P of the water and the pressure duration T are detected by the pressure detecting assembly 300. The pressure P and the duration T are information carriers, and a sequence formed by different pressures P and durations T is converted into data information according to a set communication protocol.
Because in the actual water use process, the sizes of the water taps are different, the number of the water taps is different, or the water use influence of other users can cause the numerical value of the pressure P to be different, on the basis, the pressure difference is better detected, namely, a sequence consisting of different pressure differences delta P and duration T is converted into data information. Wherein δ P is a range of values to avoid fluctuations.
Taking the computer field communication mode as an example, the water pressure constant pressure is P0, the water pressure P1 represents 0, the water pressure P2 represents 1, and the P1 and P2 with equal time intervals can form a set of binary values, thereby realizing the loading of information. Or delta P1 represents 0, delta P2 represents 1, and delta P1 and delta P2 form a group of binary values to realize communication. The loading of information may be achieved in other ways than this.
In the prior art, the constant-pressure water supply technology is mature, the water supply system is provided with the pressure detection device and the pressurization water supply device, so that the control of water pressure and duration can be realized through the constant-pressure water supply system, the prior art is mature, and the control can be realized by modifying a corresponding control program. Therefore, data transmission can be realized by adopting the two modes.
The method for sending data comprises the following steps:
the pressure of the flowing water flow is controlled by the intercepting component 400, and the information to be sent is set into a sequence consisting of different pressures P and durations T according to a set communication protocol.
In the present invention, the pressure of the water flow is controlled by the shut-off assembly 400, which is equivalent to controlling the water flow through a simple valve to further control the pressure. In the invention, the inner wall of the cavity 410 is provided with a stroke limiting groove 411 parallel to the sliding direction of the water baffle 420, the water baffle 420 is provided with a stroke limiting block 423, the stroke limiting block 423 is embedded in the stroke limiting groove 411, and the length of the stroke limiting groove 411 is smaller than the inner diameter of the flow passage of the water meter body 100. Under the condition of certain water flow pressure, the pressure change controlled by the interception component 400 is constant, namely, the interception component 400 generates a pressure pulse, and a binary sequence can be generated by taking the internal pressure of the pipe wall as 0 and the pulse as 1 during water flow, so that the data transmission is realized.
Meanwhile, the invention can adopt a mode of controlling the pulse time length to realize the coding of data.
Fig. 8 is a flow chart of a method of implementing communication according to the present invention.
In the prior art, the transmission of the degrees of the water meter is a key problem for solving the manual meter reading of a tap water company, but no better solution is available so far, and the communication method for realizing the automatic uploading of the degrees of the water meter comprises the following steps:
the method for sending the degrees acquired by the water meter comprises the following steps:
digital display's water gauge has been very common among the prior art, so it can be realized to change the water consumption that the water gauge acquireed into the digital quantity, and based on this, the controller 200 of intelligence water gauge reads the water consumption, the number of degrees of water gauge promptly, then starts communication, converts the sequence of pressure and duration constitution into according to the communication protocol. The method specifically comprises the following steps:
step 1, starting communication:
step 1.1, the controller 200 controls the driving device 430 to be electrified so that the water baffle 420 is inserted into the flow channel for intercepting, stops the driving device 430 to be electrified after the duration t1, and keeps the power-off state t 2.
And 1.2, repeating the step 1.1.
This step corresponds to the transmission of a start frame in computer communication technology. Preferably, in order to identify different water meters, the identification number or address number of the water meter may be encoded, so step 1 may further include sending an address frame after the start frame. The method specifically comprises the following steps:
and 1.3, repeating the step 1.1n times, wherein the repeated times n are the identification number or the address number of the intelligent water meter.
In addition, it can be determined by the proportional relationship between the duration t1 and the duration t2 in step 1.1. Specifically, the sum of the duration T1 and the duration T2 is a constant T, and the ratio of the duration T1 to the constant T is the identification number or address number of the intelligent water meter.
Step 2, data sending: the number of degrees of the meter is sent first, and then the value on the number is sent. The degree of the water meter is generally a decimal number which is a plurality of numbers, so that the number of the digits is multiple, including one, ten, hundred, thousand, ten thousand and the like, and the value of each digit is 0 to 9. The communication method is that the identification of the digit is sent out first, and the numerical value of the digit is sent out. The method specifically comprises the following steps:
step 2.1, sending the number of the water meter,
the controller 200 controls the driving device 430 to be electrified to enable the water baffle 420 to be inserted into the flow channel for intercepting the flow, stops the driving device 430 from being electrified after the duration t3, and keeps the power-off state t2, wherein the duration t3 is several seconds.
Step 2.2, sending the numerical value of the digit in the step 2.1,
the controller 200 controls the driving device 430 to be electrified to enable the water baffle 420 to be inserted into the flow channel for intercepting the flow, stops the driving device 430 from being electrified after the duration time t4, and keeps the power-off state t2, wherein the number of seconds of the duration t4 is the numerical value of the digit in the step 2.1.
And 2.3, repeatedly executing the step 2.1-the step 2.2N times when the water meter degree is N digits.
The beneficial effect of this mode lies in:
1. excessive pulses cannot be generated, further uncomfortable influence on water consumption of a user cannot be caused, and particularly when the user takes a shower, relative stability of water flow can be guaranteed.
2. One degree can be transmitted for multiple times, after the ones are transmitted, the water faucet can be closed to interrupt communication when the tens are transmitted, and the tens can be directly transmitted when the tens are transmitted next time. Thus having the beneficial effect of intermittent transmission.
3. With the shutoff assembly 400, water usage is not affected in the first place, and data transmission can be achieved by detecting a pressure difference, rather than a specific pressure value, and thus is applicable to a variety of water meters as well as to different faucets.
Preferably, in order to realize the automatic water supply interruption function of the unpaid water meter, the pressure detection component 300 can be used for receiving the control instruction. In order to avoid the influence on the water pressure generated by other users when water is used to form certain fluctuation, the pressure is sensed in a mode of detecting the pressure difference, and the pressure can be regarded as effective data within a set pressure or pressure difference range. On the basis of this, the method is suitable for the production,
the number of the inductive switches 330 is at least two, the inductive switch 330 close to the water meter body 100 flow channel is a start timing switch 331, and the inductive switch 330 far away from the water meter body 100 flow channel is an end timing switch 332.
The method still delays the mode of representing information by time length, and the method for receiving data comprises the following steps:
step 1, after the start timing switch 331 detects the signal, starting timing, and after the end timing switch 332 detects the signal, stopping timing, wherein the time length is t5,
if the time length t5 is the identity of the set initial communication in the communication protocol then the recording of subsequent data continues,
if the time length t5 is not the identification of the initial communication set in the communication protocol, the subsequent steps are ended.
Step 2, after the start timing switch 331 detects the signal, starting timing, and after the end timing switch 332 detects the signal, stopping timing, wherein the time length is t6,
the received command is solved according to the mapping relation between the time length and the control command specified in the communication protocol, so that specific commands can be determined according to t6 with different lengths. E.g., 1 second for open valve, 2 seconds for closed valve, 3 seconds for upload count, etc.
Step 3, controlling the intelligent water meter according to the received control instruction
Correspondingly, the upper-level control system of the intelligent water meter can increase the pressure at the starting time and reach the detection value of the starting timing switch, then keep the pressure within the range of 20% -30% of the pressure value represented by the position where the starting timing switch is located and the pressure within the range of 30% -40% of the pressure value represented by the position where the ending timing switch is located, and finally control the pressure within the range of 20% -30% of the pressure value represented by the position where the ending timing switch is located when the control pressure needs to be ended, so that the influence of water consumption of other users on communication is avoided.
Preferably, the method for sending the degree obtained by the water meter by using the water meter is a method for realizing intelligent uploading of the degree of the water meter, and comprises the following steps:
setting the unsent data information of the register or the variable, wherein the unsent data information is an array and comprises a plurality of data.
Step 1, when the set time for uploading the water meter degrees is reached, the degrees of the water meter required to be sent are written into unsent data information for sending.
And 2, detecting pressure change according to the pressure detection assembly 300 or judging whether water flows according to a flowmeter of the intelligent water meter so as to judge whether the faucet is in an open water using state, namely whether the faucet is in a running water state.
If yes, step 3 is executed, otherwise step 2 is repeated.
Step 3, judging whether the unsent data information is empty or not,
if not, indicating that the data is not sent, reading unsent data information, and executing the step 4;
if the data is empty, the data is sent completely, and step 1 is executed.
Step 4, according to the method that the water meter sends the degree obtained by the water meter, sending the data information which is not sent;
sending unsent data information one by one, and judging whether water flow is interrupted or not;
if not, continuing to send the unsent data information, rewriting the unsent data information after subtracting the sent data information from the unsent data information, and executing the step 3;
and if the interruption is carried out and the unsent data information is not sent, rewriting the unsent data information after subtracting the sent data information from the unsent data information, and repeating the step 2.
Fig. 10 is a flow chart of a method for uploading the number of degrees of the water meter according to the present invention.
The intelligent water meter disclosed by the invention can be used as a terminal user water meter, can also be used as a middle control table or a general table, is communicated with the water meter positioned at the terminal user, and when only the terminal user water meter is communicated with a previous-level control system, such as a constant-pressure water supply system, the corresponding constant-pressure water supply system needs to change the control program.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all equivalent changes and modifications in the shape, structure, characteristics and spirit described in the scope of the claims of the present invention are included in the scope of the claims of the present invention.
Claims (5)
1. An intelligent water meter based on new communication mode meter reading comprises: water gauge body (100), controller (200) and electricity generation subassembly (500), its characterized in that:
the automatic water flow control device comprises a pressure detection assembly (300) and an interception assembly (400), wherein the pressure detection assembly (300) detects the pressure P and the pressure duration T of water, the interception assembly (400) controls the pressure of flowing water and the pressure duration, and the pressure P and the duration T are used as information carriers, specifically:
different pressures P or different pressure differences δ P represent different numbers;
or, the pressure P for different durations represents different numbers;
setting a register or a variable to store unsent data information;
step A, when the set time for uploading the water meter degrees is reached, the degrees of the water meter to be sent are written into unsent data information for sending;
step B, judging whether the faucet is in an open water using state, namely judging whether the faucet is in a running water state, if so, executing the step C, otherwise, repeating the step B;
step C, judging whether the unsent data information is empty or not,
if not, reading the unsent data information and executing the step D;
if the result is empty, executing the step A;
step D, according to the method that the water meter sends the degree obtained by the water meter, sending unsent data information;
step 1, starting communication: the shutoff assembly (400) performs shutoff and maintains an unvalued state t2 after a time duration t 1;
step 2, data sending: firstly, sending the number of the degree of the water meter, and then sending the numerical value on the number, specifically
Step 2.1, sending the number of the water meter degrees: the shut-off assembly (400) is shut-off for a time period t3, which is maintained in an un-shut-off state t2, wherein t3 lasts for several seconds,
step 2.2, sending the numerical value of the digit in the step 2.1: the shut-off module (400) shuts off for a time period t4 and remains in the non-shut-off state t2, where t4 lasts for a number of seconds equal to the number of digits in step 2.1,
step 2.3, the water meter degree is N digits, and the step 2.1-the step 2.2 are repeatedly executed for N times;
sending unsent data information one by one, and judging whether water flow is interrupted or not;
if not, continuing to send the unsent data information, rewriting the unsent data information after subtracting the sent data information from the unsent data information, and executing the step C;
and if the interruption is carried out and the unsent data information is not sent, rewriting the unsent data information after subtracting the sent data information from the unsent data information, and repeating the step B.
2. The intelligent water meter reading based on the new communication mode according to claim 1, characterized in that:
the pressure detection assembly (300) is arranged on the inner wall of the flow channel of the water meter body (100) and is electrically connected with the controller (200) to detect water pressure.
3. The intelligent water meter reading based on the new communication mode according to claim 1, characterized in that:
the pressure detection assembly (300) comprises a test tube (310), a sliding block (320) and an inductive switch (330),
the test tube (310) is communicated with the flow channel of the water meter body (100), one end of the test tube (310), which is close to the flow channel of the water meter body (100), is provided with a limit block (311), the other end of the test tube (310) is provided with a spring (312), the length direction of the spring (312) is superposed with the length direction of the test tube (310),
the sliding block (320) is arranged in the pipe cavity of the testing pipe (310) between the limiting block (311) and the spring (312) in a sliding mode, a triggering module is arranged on the side face, in contact with the pipe cavity of the testing pipe (310), of the sliding block (320) and used for triggering the induction switch (330),
the inductive switch (330) is arranged on the outer pipe wall of the test pipe (310), and the inductive switch (330) is electrically connected with the controller (200).
4. The intelligent water meter reading based on the new communication mode according to claim 1, characterized in that:
the intercepting component (400) comprises a cavity (410) communicated with a flow channel of the water meter body (100), a water baffle (420) arranged in the cavity (410) in a sliding way and a driving device (430) arranged outside the cavity (410),
the water baffle (420) comprises a stress part (421) and a water baffle part (422) which are positioned in the cavity (410), the stress part (421) is a permanent magnet,
the driving device (430) comprises an iron core and a coil winding wound on the iron core, the iron core of the driving device (430) is superposed with the axial lead of the stress part (421) of the water baffle (420),
the driving device (430) is electrically connected with the controller (200).
5. The intelligent water meter reading based on the new communication mode according to claim 4, characterized in that:
the water baffle (420) is internally provided with a through hole which is communicated with the inside of the cavity (410) and a flow passage of the water meter body (100).
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| CN111649788B (en) * | 2020-07-10 | 2022-04-05 | 淄博贝林电子有限公司 | Large-caliber NB-IoT (network of things) Internet of things water meter |
| CN112097850A (en) * | 2020-10-31 | 2020-12-18 | 宁波宁水仪表有限公司 | Thing networking water gauge with frostproofing structure |
| CN116124241B (en) * | 2023-01-09 | 2023-08-11 | 山东埃美诺仪表有限公司 | Intelligent remote water meter and method |
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Also Published As
| Publication number | Publication date |
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| CN111879370A (en) | 2020-11-03 |
| CN111879370B (en) | 2022-04-12 |
| CN111879371A (en) | 2020-11-03 |
| CN110031053A (en) | 2019-07-19 |
| CN110031053B (en) | 2020-07-31 |
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