CN115792156B

CN115792156B - Control method and device for on-line monitoring of multi-parameter water quality

Info

Publication number: CN115792156B
Application number: CN202211508797.7A
Authority: CN
Inventors: 王益雷; 陈伟; 唐波
Original assignee: Ningbo Water Meter Group Co Ltd
Current assignee: Ningbo Water Meter Group Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-11-14
Anticipated expiration: 2042-11-29
Also published as: CN115792156A

Abstract

The invention provides a control method and a device for on-line monitoring of multi-parameter water quality, wherein water to be detected is introduced into a measuring branch for measurement, and the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving the water flow of the measuring branch and a valve control device group for controlling the water flow of the measuring branch; introducing water into the measuring branch by a steady flow pump to ensure the stable water flow speed of the measuring cavity; the water flow of the measuring branch is controlled by the valve control device group, so that the operation such as the installation and maintenance of the sensor and the measuring cavity are ensured; by controlling and managing the running state of the product, low power consumption can be realized, and the product is compatible with use scenes such as non-mains supply and the like and the range of the use scene of the product is enlarged; the abnormal state, the product maintenance state and the product test state can be controlled and managed, the influence of the environment is avoided, and the support is provided for the long-term reliable and stable operation of the product.

Description

Control method and device for on-line monitoring of multi-parameter water quality

Technical Field

The invention relates to the technical field of water quality monitoring, in particular to a control method and a device for multi-parameter water quality on-line monitoring.

Background

Along with the development of social economy and the improvement of the living standard of people, people have put higher and higher demands on the water quality of tap water supply. In order to achieve the purpose, the multi-parameter water quality on-line monitoring of the tap water supply pipe network (such as the use scene of a secondary water supply pump house in a community and the like) is generated, and the measure is a powerful means for ensuring the water quality of tap water supply to reach the standard.

At present, a mode of detecting without pressure and draining outside is generally adopted conventionally. The method requires that the water to be detected in the water supply network is drained to an environment without pressure for water quality detection, the water to be detected is polluted in the detection process, and the water to be detected is discharged after the detection is finished. In this way, the drainage of the measured water can lead to a great deal of waste of water resources; and the detection device is generally powered by mains supply, so that the use scene is limited.

In addition, because the measuring branch is directly communicated with the main water supply pipeline under pressure, the measuring cavity is easily influenced by the environment of the main water supply pipeline and also influenced by abnormal conditions such as water cut-off of the main pipeline.

Disclosure of Invention

Therefore, the invention aims to provide a control method and a device for on-line monitoring of multi-parameter water quality, which ensure that the water flow speed of a measuring cavity is stable by introducing water into a measuring branch through a steady flow pump; the water flow of the measuring branch is controlled by the valve control device group, so that the operation such as the installation and maintenance of the sensor and the measuring cavity are ensured; by controlling and managing the running state of the product, low power consumption can be realized, and the product is compatible with use scenes such as non-mains supply and the like and the range of the use scene of the product is enlarged; the abnormal state, the product maintenance state and the product test state can be controlled and managed, the influence of the environment is avoided, and the support is provided for the long-term reliable and stable operation of the product.

In a first aspect, an embodiment of the present invention provides a control method for online monitoring of multiparameter water quality, where water to be detected is introduced into a measurement branch for measurement, where the measurement branch includes a water quality sensor, a water pressure sensor, a steady flow pump for driving water flow of the measurement branch, and a valve control device group for controlling water flow of the measurement branch; the method comprises the following steps:

acquiring a working mode and a working sub-mode of a product, wherein the working mode comprises a pre-operation mode and a normal operation mode;

collecting monitoring parameters, wherein the monitoring parameters comprise water pressure, flow and water quality value;

determining an operational status of the product;

controlling and managing the running state of the product according to the working mode, the working sub-mode and the monitoring parameters;

the running state of the product comprises a low power consumption state, an abnormal state, a product maintenance state and a product test state.

Further, the working sub-mode includes: a continuous acquisition sub-mode, a low frequency acquisition sub-mode, a water shut-off sub-mode, a flow calibration sub-mode, a maintenance sub-mode being entered, a maintenance sub-mode being exited, and a valve control device exception sub-mode.

Further, according to the working mode, the working sub-mode and the monitoring parameter, the method for controlling and managing the running state of the product comprises the following steps:

when the product is in the low-power consumption state, if the preset mode is the continuous acquisition sub-mode or the low-frequency acquisition sub-mode, automatically switching to the continuous acquisition sub-mode after powering on and starting up;

under the condition that the water pressure or the flow is normal, if the water quality value and the fluctuation range of the water quality value are in a normal range, determining that the water quality is normal, and automatically switching into the low-frequency acquisition sub-mode after running for a preset time;

if the water quality value and the fluctuation range of the water quality value are not in the normal range, determining that the water quality is abnormal, and continuously maintaining the continuous acquisition sub-mode;

when the water pressure or the flow is normal after the low-frequency acquisition sub-mode is shifted to, if the water quality value and the fluctuation range of the water quality value are in the normal range, determining that the water quality is normal, and continuously maintaining the low-frequency acquisition sub-mode;

if the water quality value and the fluctuation range of the water quality value are not in the normal range, determining that the water quality is abnormal, and automatically switching to the continuous acquisition sub-mode.

when the product is in the abnormal state, under the condition that a preset mode is the continuous acquisition sub-mode or the low-frequency acquisition sub-mode, if the water pressure and the flow are abnormal, determining that the water is cut off, and automatically switching to the water cut-off sub-mode;

if the water pressure or the flow is normal, determining that water is introduced, and automatically switching to the continuous acquisition sub-mode;

and if the preset mode is the water stopping sub-mode, automatically turning into the water stopping sub-mode.

when the product is in the product maintenance state and the product test state, if a preset mode is the continuous acquisition sub-mode or the low-frequency acquisition sub-mode, entering the flow calibration mode through issuing a command;

after the operation is performed in the flow calibration sub-mode, the flow calibration sub-mode is withdrawn according to a issuing command, and the flow calibration sub-mode is automatically transferred into the continuous acquisition sub-mode;

And if the preset mode is the flow calibration sub-mode, automatically switching into the flow calibration sub-mode.

when the product is in the product maintenance state and the product test state, under the conditions of the continuous acquisition sub-mode, the low-frequency acquisition sub-mode, the water cut-off sub-mode or the valve control device abnormal sub-mode, switching to the maintenance sub-mode;

if the execution of the maintenance sub-mode entering is successful, automatically entering the maintenance sub-mode;

if the execution of the maintenance sub-mode is failed, automatically switching to the abnormal sub-mode of the valve control device;

after the corresponding operation is executed and completed in the maintenance sub-mode, the operation is switched to the maintenance sub-mode which is being exited;

if the maintenance sub-mode is being exited and the execution is successful, automatically switching to the continuous acquisition sub-mode;

If the preset mode is the maintenance sub-mode, automatically turning into the maintenance sub-mode after powering on and starting up;

if the preset mode is the maintenance sub-mode which is being entered, the maintenance sub-mode which is being exited or the abnormal sub-mode of the valve control device, the valve control device is automatically shifted to the abnormal sub-mode after the power-on and the power-on are started.

In a second aspect, an embodiment of the present invention provides a control device for on-line monitoring of water quality with multiple parameters, where the device includes: the water meter comprises a measuring branch, a water meter and a control module, wherein the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving water of the measuring branch to flow and a valve control device group for controlling water flow of the measuring branch;

the water pressure sensor is used for collecting water pressure;

the water quality sensor is used for collecting water quality values;

the water meter is used for collecting flow;

the control module is used for acquiring a working mode and a working sub-mode of a product, wherein the working mode comprises a pre-operation mode and a normal operation mode; determining an operational status of the product; controlling and managing the running state of the product according to the working mode, the working sub-mode and the monitoring parameters;

Further, the device also comprises a switching module;

the switching module is used for separating the sensors connected with the control module in a one-to-many mode, so that the control module is respectively connected with the water quality sensor and the water pressure sensor.

Further, the steady flow pump is connected with the control module and is used for introducing water to be measured into the measuring branch and sending the water to be measured back to the main water supply pipeline after the measurement is completed.

Further, the device also comprises a valve control device group, wherein the valve control device group comprises a first valve control device and a second valve control device;

the valve control device group is connected with the control module and used for controlling opening and closing according to the driving instruction sent by the control module and controlling the on-off of the water flow of the measuring branch.

The embodiment of the invention provides a control method and a device for on-line monitoring of multi-parameter water quality, wherein water to be detected is introduced into a measuring branch for measurement, and the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving the water flow of the measuring branch and a valve control device group for controlling the water flow of the measuring branch; comprising the following steps: acquiring a working mode and a working sub-mode of a product, wherein the working mode comprises a pre-operation mode and a normal operation mode; collecting monitoring parameters, wherein the monitoring parameters comprise water pressure, flow and water quality value; determining the running state of the product; controlling and managing the running state of the product according to the working mode, the working sub-mode and the monitoring parameters; the running state of the product comprises a low power consumption state, an abnormal state, a product maintenance state and a product test state; introducing water into the measuring branch by a steady flow pump to ensure the stable water flow speed of the measuring cavity; the water flow of the measuring branch is controlled by the valve control device group, so that the operation such as the installation and maintenance of the sensor and the measuring cavity are ensured; by controlling and managing the running state of the product, low power consumption can be realized, and the product is compatible with use scenes such as non-mains supply and the like and the range of the use scene of the product is enlarged; the abnormal state, the product maintenance state and the product test state can be controlled and managed, the influence of the environment is avoided, and the support is provided for the long-term reliable and stable operation of the product.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a control device for on-line monitoring of multi-parameter water quality according to an embodiment of the present invention;

FIG. 2 is a flow chart of a control method for on-line monitoring of multi-parameter water quality according to a second embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a mode switch according to a second embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a working sub-mode conversion according to a second embodiment of the present invention;

FIG. 5 is a schematic diagram illustrating another working sub-mode conversion according to a second embodiment of the present invention;

FIG. 6 is a schematic diagram of a control device for on-line monitoring of multi-parameter water quality according to a third embodiment of the present invention;

fig. 7 is a schematic diagram of another control device for on-line monitoring of multi-parameter water quality according to the third embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order to facilitate understanding of the present embodiment, the following describes embodiments of the present invention in detail.

Embodiment one:

fig. 1 is a schematic structural diagram of a control device for on-line monitoring of multi-parameter water quality according to an embodiment of the present invention.

Referring to fig. 1, water to be detected is introduced into a measuring branch for measurement, the measuring branch is connected with a main water supply pipeline, the measuring branch comprises a valve control device group, a steady flow pump, a measuring cavity and a sensor, the valve control device group comprises a first valve control device and a second valve control device, and the sensor comprises a water quality sensor and a water pressure sensor.

In order to reduce the waste of water resources, expand the online monitoring application scene of the multi-parameter water quality at the same time, improve the overall level of the online monitoring of water quality, the application has provided the online monitoring control device of the multi-parameter water quality, the device is through introducing the water pressure to be measured into the measuring branch, set up and measure the cavity to wait to detect water in the measuring branch, the detection process is pollution-free, send the water to be detected back to the main water supply pipeline to continue to use after finishing detecting, thus has realized the online monitoring of multi-parameter water quality with pressure, closed loop and not draining outside, and support the power supply of non-commercial power, has laid the foundation for expanding the online monitoring application scene of water quality.

Therefore, compared with the traditional online water quality monitoring mode, the multi-parameter online water quality monitoring mode has greatly changed detection flow and product form, so that the original electric control mode based on the traditional online water quality monitoring mode without pressure and with external drainage cannot be used for control. At present, the research on the electric control mode of the novel multi-parameter water quality on-line monitoring mode is still blank, and a novel electric control mode and a novel electric control device are required to be designed so as to meet the requirements of the novel on-line monitoring mode.

Under the novel multi-parameter water quality on-line monitoring mode, a new requirement is put forward on an electric control mode, and the method mainly comprises the following steps: firstly, a steady flow pump is required to be controlled to introduce water into a measuring branch and send the water back to a main water supply pipeline after measurement is completed, and the water flow speed of a measuring cavity is ensured to be stable; secondly, valve control devices at two ends of the measuring branch are required to be controlled, and water flow of the measuring branch can be cut off so as to support the operations of installation, maintenance and the like of the sensor and the measuring cavity; thirdly, in order to be compatible with use scenes such as non-mains supply and the like and expand the use scene range of products (such as the entrance of a large user and the like), low-power consumption design is needed; fourthly, because the measuring branch is directly communicated with the main water supply pipeline under pressure, the measuring cavity is easily affected by the environment of the main water supply pipeline, and the abnormal conditions such as water cut off of the main pipeline are also considered; finally, all the functions are coordinated comprehensively to perform unified control.

In order to meet the above requirements, the present application is described in terms of a lifecycle management plane, a working state management plane, and a control device plane:

1) At the lifecycle management level: under the novel online monitoring mode, in the life cycle of product installation and use, the product installation (comprising a plurality of stages such as mechanical component installation, main pipeline water supply, electric control component installation, measurement branch water supply and the like), sensor activation, product calibration, product application and the like are required to be sequentially carried out, and the process involves the conversion of strategies such as power supply on-off control, data acquisition and reporting and the like of a water quality sensor, and is different from the process in the traditional online monitoring mode to a certain extent, so that a set of product life cycle management method is required to be designed.

2) At the working state management level: under this new online monitoring mode, a new requirement is put forward for the management of the working state, mainly including: a) Some new basic functions need to be supported: new functions such as control functions of the steady flow pump and the valve control device are added on the basis of basic functions such as data acquisition and processing, remote communication, local interaction and the like.

b) Low power consumption operation of the product needs to be supported: in order to support the use scenario under the non-commercial power environment, the product needs to be designed with low power consumption and support the low power consumption operation state, so that a related method is required to be specially designed to manage the operation states, and the product can judge whether to enter the low power consumption operation state according to the environmental change (water quality, water pressure, flow and the like).

c) The product self-protection function under abnormal conditions needs to be supported: aiming at the requirements of partial water quality sensors and steady flow pumps on working conditions, the components such as the water quality sensors and the steady flow pumps are required to be protected under abnormal conditions such as water cut-off and the like so as to avoid damage of the components or reduction of service life, and therefore, related methods are required to be designed to realize a self-protection function.

d) Operations such as product maintenance, product test and the like are required to be supported: aiming at the requirement of regular maintenance of the product, the maintenance of the product is supported; aiming at the requirements of product inspection and detection, the product needs to be supported for testing. In order to achieve the above-mentioned object, based on the characteristics of the novel on-line monitoring mode, it is necessary to control the components such as the steady flow pump and the valve control device to enter various different states, so that it is necessary to design a related method to support the above-mentioned functions.

e) All functions need to be coordinated: because of the complex electric control function, the control of each function needs to be coordinated in an overall way, a plurality of common working states need to be defined in an abstract way, and the working states and the conversion flow thereof are managed in a unified way. Based on the method, a corresponding control device is designed.

Embodiment two:

fig. 2 is a flowchart of a control method for on-line monitoring of multi-parameter water quality according to a second embodiment of the present invention.

Referring to fig. 2, water to be detected is introduced into a measuring branch for measurement, and the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving the water flow of the measuring branch and a valve control device group for controlling the water flow of the measuring branch; the method comprises the following steps:

step S101, a working mode and a working sub-mode of a product are obtained, wherein the working mode comprises a pre-operation mode and a normal operation mode;

the working modes further comprise installation modes, different stages of the life cycle of the product are corresponding to different working modes, and the installation modes are mainly used for the on-site installation stage of the product; the pre-operation mode is mainly used for an on-site water quality sensor activation stage; the normal operation mode is mainly used for the product operation stage. The operating states of the respective operating modes are as follows: a) Mounting mode: the water quality sensor is not powered, and other sensors are powered normally; b) Pre-run mode: the sensor to be activated is not powered, other sensors are powered normally, and the acquisition report does not include relevant data of the sensor to be activated; c) Normal operation mode: all sensors are powered normally, and all data are included when collecting and reporting; the operator realizes the switching of the working mode by a manual mode and supports any switching.

In the life cycle of product installation and use, referring to fig. 3, the operation mode generally circulates in the order of installation mode, pre-operation mode, normal operation mode.

Step S102, collecting monitoring parameters, wherein the monitoring parameters comprise water pressure, flow and water quality value;

step S103, determining the running state of the product;

step S104, controlling and managing the running state of the product according to the working mode, the working sub-mode and the monitoring parameters;

Further, different working states of the product are corresponding to different working sub-modes, and the working sub-modes comprise: a continuous acquisition sub-mode, a low frequency acquisition sub-mode, a water shut-off sub-mode, a flow calibration sub-mode, a maintenance sub-mode being entered, a maintenance sub-mode being exited, and a valve control device exception sub-mode. The operating states of the respective sub-modes are as follows: a) Continuous acquisition sub-mode: the steady flow pump (the valve control device is synchronously opened) is started, and data acquisition and reporting are carried out at the maximum frequency; b) Low frequency acquisition sub-mode: the steady flow pump (the valve control device is synchronously opened) is opened, and data acquisition and reporting are carried out at a lower frequency (the frequency is adjustable); c) Water cut-off sub-mode: the method is used for a water supply main pipeline water stopping stage (protecting a water quality sensor and a steady flow pump), closing the steady flow pump (synchronously opening a valve control device), closing the power supply of the water quality sensor, and collecting and reporting data (removing relevant data of the water quality sensor) at the maximum frequency; d) Flow marker sub-mode: the method is used for partial calibration, a steady flow pump (a valve control device is synchronously opened) is opened, and data acquisition and reporting are not performed; e) Maintenance sub-mode: the method is used for maintenance and partial calibration, a steady flow pump is closed (a valve control device is synchronously closed), and data acquisition and reporting are not carried out; f) The maintenance sub-mode is being entered: when the method is used for switching other sub-modes into the transition stage of the maintenance sub-mode, the steady flow pump is firstly closed, then the valve control device is closed, and data acquisition and reporting are not carried out; g) The maintenance sub-mode is being exited: the transition stage from the maintenance sub-mode to the continuous acquisition sub-mode is exited, the valve control device is started firstly, then the steady flow pump is started, and data acquisition and reporting are not performed; h) Abnormal sub-mode of valve control device: after the failure of entering the maintenance sub-mode or exiting the maintenance sub-mode is executed, the state of the valve control device is incorrect or cannot be obtained, the steady flow pump is closed, and data acquisition and reporting are not carried out.

Under different working modes, certain differences exist in the support degree and the control mode of the working sub-mode: a) In the installation mode, default entering a maintenance sub-mode, and not allowing to enter other sub-modes; b) In the pre-run mode or the normal run mode, all of the 8 seed modes described above are supported.

Further, referring to fig. 4, step S104 includes:

step S201, when the product is in a low power consumption state, if the preset mode is a continuous acquisition sub-mode or a low frequency acquisition sub-mode, automatically switching to the continuous acquisition sub-mode after power-on and power-on;

step S202, under the condition that the water pressure or the flow is normal, if the water quality value and the fluctuation range of the water quality value are in a normal range, determining that the water quality is normal, and automatically switching to a low-frequency acquisition sub-mode after running for a preset time;

step S203, if the water quality value and the fluctuation range of the water quality value are not in the normal range, determining that the water quality is abnormal, and continuously maintaining the continuous acquisition sub-mode;

step S204, when the water pressure or flow is normal after the low-frequency acquisition sub-mode is switched into, if the water quality value and the fluctuation range of the water quality value are in the normal range, determining that the water quality is normal, and continuously maintaining the low-frequency acquisition sub-mode;

Step S205, if the water quality value and the fluctuation range of the water quality value are not in the normal range, determining that the water quality is abnormal, and automatically switching to a continuous acquisition sub-mode.

Further, referring to fig. 4, step S104 includes:

step S301, when the product is in an abnormal state, if the preset mode is a continuous acquisition sub-mode or a low-frequency acquisition sub-mode, determining that water is cut off and automatically switching to a water cut-off sub-mode;

step S302, if the water pressure or flow is normal, determining that water is supplied, and automatically switching to a continuous acquisition sub-mode;

step S303, if the preset mode is the water cut-off sub-mode, the water cut-off sub-mode is automatically shifted.

Further, referring to fig. 5, when the product is in the product maintenance state and the product testing state, the timing acquisition and reporting needs to be stopped, and the normal flow of the water flow of the measurement branch is maintained, and step S104 includes:

step S401, when the product is in a product maintenance state and a product test state, if the preset mode is a continuous acquisition sub-mode or a low-frequency acquisition sub-mode, entering a flow calibration mode by issuing a command;

step S402, after operation is performed in the flow calibration sub-mode, the flow calibration sub-mode is exited according to the issuing command, and the flow calibration sub-mode is automatically transferred into the continuous acquisition sub-mode;

Here, some specific operations may be performed in the flow calibration mode, and after the operations are completed, the flow calibration mode may be manually exited or exited according to an issuing command, at which time the continuous acquisition sub-mode is automatically shifted.

Step S403, if the preset mode is the flow calibration sub-mode, automatically switching to the flow calibration sub-mode.

Further, referring to fig. 5, when the product is in the product maintenance state and the product test state, the timing acquisition and reporting needs to be stopped, and the measuring branch water flow is switched, and step S104 includes:

step S501, when the product is in a product maintenance state and a product test state, under the condition of continuously collecting sub-mode, low-frequency collecting sub-mode, water stopping sub-mode or valve control device abnormal sub-mode, switching to a maintenance sub-mode;

here, the maintenance sub-mode can be manually shifted, but the shift time is long, so that the maintenance sub-mode is shifted into first.

Step S502, if the maintenance sub-mode is being entered and the execution is successful, automatically switching to the maintenance sub-mode;

step S503, if the maintenance sub-mode is being entered and the execution fails, automatically switching to the abnormal sub-mode of the valve control device;

step S504, after the corresponding operation is executed in the maintenance sub-mode and is completed, the operation is switched to the maintenance sub-mode which is being exited;

Here, some corresponding operations may be performed in the maintenance sub-mode, and after the operations are completed, the maintenance sub-mode may be manually exited, and the maintenance sub-mode is first shifted to be exited due to the long transition time.

Step S505, if the maintenance sub-mode is being exited and the execution is successful, automatically switching to a continuous acquisition sub-mode;

step S506, if the maintenance sub-mode is exiting and the execution fails, automatically switching into an abnormal sub-mode of the valve control device;

step S507, if the preset mode is a maintenance sub-mode, automatically switching to the maintenance sub-mode after powering on and starting up;

step S508, if the preset mode is the maintenance sub-mode being entered, the maintenance sub-mode being exited or the abnormal sub-mode of the valve control device being exited, the valve control device is automatically shifted to the abnormal sub-mode of the valve control device after power-on and power-on.

Embodiment III:

fig. 6 is a schematic diagram of a control device for on-line monitoring of multi-parameter water quality according to a third embodiment of the present invention.

Referring to fig. 6, the apparatus includes: the water meter comprises a measuring branch, a water meter and a control module, wherein the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving water in the measuring branch to flow and a valve control device group for controlling water flow in the measuring branch;

the water pressure sensor is used for collecting water pressure;

The water quality sensor is used for collecting water quality values;

the water meter is used for collecting flow;

the control module is used for acquiring a working mode and a working sub-mode of the product, wherein the working mode comprises a pre-operation mode and a normal operation mode; determining the running state of the product; controlling and managing the running state of the product according to the working mode, the working sub-mode and the monitoring parameters;

Further, the device also comprises a switching module;

and the switching module is used for separating the sensors connected with the control module in a one-to-many manner, so that the control module is respectively connected with the water quality sensor and the water pressure sensor.

And the steady flow pump is connected with the control module and is used for introducing water to be measured into the measuring branch and sending the water to be measured back to the main water supply pipeline after the measurement is completed.

the valve control device group is connected with the control module and used for controlling the opening and closing according to the driving instruction sent by the control module and controlling the on-off of the water flow of the measuring branch.

The basic functions of the device are described below, in particular as follows:

a) Sensor control functions (including water quality sensor, water pressure sensor, water meter, etc.): the sensor comprises the functions of sensor data acquisition, sensor power supply on-off, sensor parameter configuration, sensor calibration and the like.

b) Steady flow pump control function: and driving the measuring branch water to flow, and controlling the flow speed to be stable through a related algorithm.

c) Valve control device control function: the on-off of the water flow of the measuring branch is controlled by controlling the opening and closing of the first valve control device and the second valve control device.

d) Data processing function: on one hand, the collected data is processed, and on the other hand, a protocol conversion function is required.

e) Data storage function: on the one hand, data such as water quality and the like are stored, and on the other hand, equipment configuration parameters are stored.

f) Remote communication function: and the data is uploaded to the water quality early warning platform by means of 4G and the like, and the command issued by the platform is received and executed.

g) Local interaction function: local interaction is realized by means of computer upper computer software, a human-computer interface touch screen and the like, and the functions of data query, parameter configuration, equipment control, equipment maintenance, equipment detection and the like are included.

h) Lifecycle and operational state control: by the method, all the functions are unified coordinated and controlled by using the working mode, the working sub-mode and the conversion mechanism thereof.

i) And (3) monitoring equipment states: monitoring the running state of the equipment and the following components thereof, and timely acquiring and reporting abnormal information.

j) Support diversified power supply modes: on the one hand, mains supply and on the other hand, non-mains supply (such as battery supply, solar supply, etc.) are supported.

Referring to fig. 7, the control device includes a power supply module, a control module, and a switching module. The power supply module is responsible for providing power for the control module, the switching module and other next components.

The control module is a core component of the control device and comprises a main control board and a communication board. The main control board is a core component of the control module, the core of the main control board is a single chip microcomputer, related functions are realized by combining a peripheral circuit of the single chip microcomputer, and the peripheral circuit mainly comprises a power supply control circuit, a water quality sensor, a water pressure sensor, a water meter, a steady flow pump, a valve control device, a local storage circuit, an equipment state monitoring circuit, a 4G communication control circuit, a local interaction control circuit and the like. The communication board realizes the 4G communication function and supports the sleep mode to reduce the power consumption. The switching module is responsible for one-to-many separation of the cables connecting the control module to the sensors, so that the control module can be respectively connected to different sensors.

The application is illustrated by taking each link of the product as an example:

1) Product inspection detection and factory setting links: in the product detection link, the product needs to be normally supplied with water, and functional test and performance test are carried out, and at the moment, the product needs to be set into a normal operation mode and a flow calibration mode so as to meet the requirements of product detection.

In the factory setting link of the product, the requirements of product storage and transportation are required to be met, and the product is ready for field installation. At this time, the operation sub-mode is first switched to the maintenance sub-mode, and then the operation mode is switched to the installation mode. After the valve control device is in a closed state all the time, the steady flow pump does not work after the device is electrified, the water quality sensor does not supply power, and the requirement of field installation can be met.

2) And (3) product field installation links: in the product field installation link, the mechanical component is required to be installed on the main pipeline in the water-break state of the main pipeline, and the main pipeline is supplied with water. After the main pipeline is completely filled with water, the electric control part is installed in place, then the device is electrified, products automatically enter an installation mode and a maintenance sub-mode, and whether the basic state of the operation of the device is normal or not can be checked at the moment, wherein the basic state comprises an electrified state, a local interaction function, a 4G remote communication function and the like.

Then the measuring branch is conducted to be filled with water, the operation method is that the device is controlled to enter a pre-operation mode firstly, then the device is controlled to exit a maintenance sub-mode, at the moment, the device enters the pre-operation mode and a continuous collection sub-mode, at the moment, the valve control device is opened, and the steady flow pump starts to work. The basic state of the device operation can be checked to see if it is normal, including steady flow pump operation and data acquisition functions (except for the sensor to be activated). If special conditions such as branch water leakage occur, the device can be controlled in real time to reenter the maintenance sub-mode, the water flow of the measuring branch is cut off, the measuring branch is checked and maintained, and the water flowing operation of the measuring branch is carried out again after the checking is correct.

3) Product field pre-operation and application links: after the water passing of the measuring branch is completed, the whole machine enters a pre-running mode, and the device works in the pre-running mode to activate the sensor to be activated. The pre-operation mode is long in time consumption, and in the pre-operation process, calibration work for other water quality sensors can be carried out.

After the activation of the sensor to be activated is completed, the device is operated to enter a normal working mode, and the residual chlorine sensor is electrified to work at the moment, so that the calibration work of the sensor to be activated can be carried out.

After all the sensor calibration is completed, the device is operated and confirmed to enter a normal working mode and a continuous acquisition sub-mode, and whether the data acquisition reporting function is normal or not is observed through a period of time. If the whole machine is normal, which means that the whole machine enters a normal working state, the field installation work is completed, and personnel can withdraw from the field.

4) The water quality sensor replacement and cleaning links in product inspection and detection and field maintenance are as follows: because the water quality sensor is arranged in the measuring branch, the water flow of the measuring branch must be disconnected in the links of replacement, cleaning and the like, and the operations such as disassembly and assembly of the water quality sensor are performed. Aiming at the application scene, a maintenance sub-mode is introduced, and the requirements of related operations are met by controlling the valve control device to close and turn off the steady flow pump. Before operation, the device needs to be operated to enter a maintenance sub-mode, and after operation is completed and checking and confirmation, the device needs to be operated to exit the maintenance sub-mode.

5) Calibration links in product inspection and field maintenance: the water quality sensor may have an offset characteristic after storage or operation for a period of time, so that calibration of the product may be required at various stages of the product life cycle to ensure accuracy of water quality measurement.

The calibration of the product is divided into three types: the first type is to calibrate the whole machine, and calibration parameters are stored in a control module. The operation method is that the on-line value obtained by normal water quality collection is compared with the off-line value of water quality collected by real-time sampling, and the calibration parameters are calculated and stored and applied. At the moment, no additional operation is needed, and the device is only required to be kept in a normal operation mode, a continuous acquisition sub-mode or a low-frequency acquisition sub-mode; the second type is flow calibration for a water quality sensor, with calibration parameters stored in the sensor. Due to the nature of some sensors, the accuracy of the measurement can only be ensured under steady water flow. The operation method is that the off-line value of the water quality is sampled and collected in real time, and the value is input into a sensor, and a new calibration parameter is automatically generated by the sensor. Since the tasks of normal acquisition need to be suspended to avoid collisions, involving the operation of the sensor, a flow calibration mode is introduced. Before calibration, the device is required to be operated to enter a flow calibration sub-mode, and after calibration is completed, the device is required to be operated to exit the flow calibration sub-mode; the third type is static calibration for a water quality sensor, with calibration parameters stored in the sensor. Due to the nature of some sensors, the accuracy of the measurement can only be ensured under stationary water flow. The operation method is that the off-line value of the water quality is sampled and collected in real time, and the value is input into a sensor, and a new calibration parameter is automatically generated by the sensor. Since the operation of the sensor is involved, the tasks of normal acquisition need to be suspended to avoid collision, a mode needs to be introduced, and since the scene is the same as the requirements of links such as installation, replacement, cleaning and the like on control, a maintenance sub-mode can be directly used. Before calibration, the device is required to be operated to enter a maintenance sub-mode, and after calibration is completed, the device is required to be operated to exit the maintenance sub-mode.

6) Automatic switching of working state in normal operation of product: in the normal operation of the product, the device can collect various parameters at regular time, and the device can synchronously and dynamically control the sub-modes along with the change of water quality, water pressure and flow so as to adapt to the specific environment at that time, achieve the aim of considering both performance and power consumption and provide certain protection capability.

Under the condition that the water pressure or flow is normal, the device judges that the water flow is normal, and the working state of the device depends on the water quality. If the water quality is normal, the device operates in a low-frequency acquisition sub-mode to reduce the power consumption; if the water quality is abnormal, the system operates in a continuous acquisition sub-mode so as to meet the requirement of high-frequency monitoring.

Under the condition of abnormal water pressure and flow, the device is judged to be in a water cut-off state, and at the moment, the device operates in a water cut-off sub-mode, the power supply of the water quality sensor is cut off, and the steady flow pump is closed, so that the water quality sensor and the steady flow pump are protected from being damaged.

The embodiment of the invention also provides electronic equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the control method for the multi-parameter water quality on-line monitoring provided by the embodiment when executing the computer program.

The embodiment of the invention also provides a computer readable medium with non-volatile program codes executable by a processor, wherein the computer readable medium is stored with a computer program, and the computer program executes the steps of the control method for the multi-parameter water quality on-line monitoring in the embodiment when being run by the processor.

The computer program product provided by the embodiment of the present invention includes a computer readable storage medium storing a program code, where instructions included in the program code may be used to perform the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment and will not be described herein.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.

In addition, in the description of embodiments of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above examples are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, but it should be understood by those skilled in the art that the present invention is not limited thereto, and that the present invention is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The control method for the on-line monitoring of the multi-parameter water quality is characterized in that water to be detected is introduced into a measuring branch for measurement, and the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving the water flow of the measuring branch and a valve control device group for controlling the water flow of the measuring branch; the method comprises the following steps:

determining an operational status of the product;

the running state of the product comprises a low power consumption state, an abnormal state, a product maintenance state and a product test state;

the working sub-mode includes: a continuous acquisition sub-mode, a low frequency acquisition sub-mode, a water cut-off sub-mode, a flow calibration sub-mode, a maintenance sub-mode being entered, a maintenance sub-mode being exited, and a valve control device abnormal sub-mode being exited;

and controlling and managing the running state of the product according to the working mode, the working sub-mode and the monitoring parameter, wherein the method comprises the following steps:

if the preset mode is the water stopping sub-mode, automatically turning into the water stopping sub-mode;

the continuous acquisition sub-mode is used for opening the steady flow pump, opening the valve control device and carrying out data acquisition and reporting at the maximum frequency;

the low-frequency acquisition sub-mode is used for opening the steady flow pump, opening the valve control device and carrying out data acquisition and reporting at a lower frequency;

the water stopping sub-mode is used for closing the steady flow pump, opening the valve control device, closing the power supply of the water quality sensor, collecting and reporting data at the maximum frequency, and excluding the data of the water quality sensor;

the flow calibration sub-mode is used for partial calibration, the steady flow pump is opened, the valve control device is opened, and data acquisition and reporting are not performed;

the maintenance sub-mode is used for maintenance and partial calibration, the steady flow pump is closed, the valve control device is closed, and data acquisition and reporting are not carried out;

the maintenance sub-mode is being entered and is used for switching into a transition stage of the maintenance sub-mode, the steady flow pump is closed firstly, then the valve control device is closed, and data acquisition and reporting are not carried out;

The exiting maintenance sub-mode is used for exiting from the maintenance sub-mode to the transition stage of the continuous acquisition sub-mode, the valve control device is started first, then the steady flow pump is started, and data acquisition and reporting are not performed;

the valve control device abnormal sub-mode is used for closing the steady flow pump after the failure of executing the entering of the maintenance sub-mode or the exiting of the maintenance sub-mode, and data acquisition and reporting are not carried out; the product is a control device for on-line monitoring of multi-parameter water quality.

2. The control method for on-line monitoring of multi-parameter water quality according to claim 1, wherein controlling and managing the operation state of the product according to the operation mode, the operation sub-mode and the monitoring parameters comprises:

3. The control method for on-line monitoring of multi-parameter water quality according to claim 1, wherein controlling and managing the operation state of the product according to the operation mode, the operation sub-mode and the monitoring parameters comprises:

4. The control method for on-line monitoring of multi-parameter water quality according to claim 1, wherein controlling and managing the operation state of the product according to the operation mode, the operation sub-mode and the monitoring parameters comprises:

5. A control device for on-line monitoring of multi-parameter water quality, the device comprising: the water meter comprises a measuring branch, a water meter and a control module, wherein the measuring branch comprises a water quality sensor, a water pressure sensor, a steady flow pump for driving water of the measuring branch to flow and a valve control device group for controlling water flow of the measuring branch;

the water pressure sensor is used for collecting water pressure;

the water quality sensor is used for collecting water quality values;

the water meter is used for collecting flow;

the control module is specifically used for:

6. The control device for on-line monitoring of multi-parameter water quality according to claim 5, further comprising a switching module;

7. The control device for on-line monitoring of multi-parameter water quality according to claim 5, wherein the steady flow pump is connected with the control module and is used for introducing water to be measured into the measuring branch and sending the water to be measured back to the main water supply pipeline after the measurement is completed.

8. The control device for on-line monitoring of multi-parameter water quality according to claim 7, wherein the device further comprises a valve control device group comprising a first valve control device and a second valve control device;