CN115167547B

CN115167547B - Pressure regulating method and pressure regulating equipment for water supply network

Info

Publication number: CN115167547B
Application number: CN202210752503.9A
Authority: CN
Inventors: 邓立群; 詹益鸿; 辛萍; 袁培志; 李哲浩
Original assignee: Shenzhen Tuoan Trust Internet Of Things Co ltd
Current assignee: Shenzhen Tuoan Trust Internet Of Things Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2023-06-23
Anticipated expiration: 2042-06-29
Also published as: CN115167547A

Abstract

The application is applicable to the technical field of leakage reduction of water supply networks, and provides a pressure regulating method and pressure regulating equipment of a water supply network, wherein the pressure regulating method comprises the following steps: acquiring target information of a first area; accessing a movable pressure regulating device into a water supply network in a first area according to target information; acquiring a temporary flow value and/or a temporary pressure value through a controller, and determining the pipe network caliber of the water supply pipe network according to the temporary flow value and/or the temporary pressure value; the pressure reducing valve is regulated by the controller and the pipe network caliber; for each pressure regulating strategy, the pressure reducing valve is adjusted by the controller in a matching way with the pressure regulating strategy, and test data corresponding to the first area under the pressure regulating strategy are obtained; determining a target voltage regulation strategy according to the test data and the original data; and selecting corresponding equipment according to the target pressure regulating strategy to regulate the pressure of the water supply network in the first area. By the method, the voltage regulation strategy which better accords with the first area can be determined, so that the input cost and benefit can better meet the demands of users.

Description

Pressure regulating method and pressure regulating equipment for water supply network

Technical Field

The application belongs to the technical field of leakage reduction of water supply networks, and particularly relates to a pressure regulating method, pressure regulating equipment and a computer readable storage medium of a water supply network.

Background

In towns of China, water supply networks are adopted for supplying water for enterprises, residents and the like. However, due to long history, the ageing phenomenon often exists in the pipeline in the water supply network, so that the water supply network is leaked.

Compared with the world advanced level country, the urban water supply network leakage control level of China still has a larger gap, and the urban water supply enterprise network basic leakage rate standard required by the national 'ten water' standard and the like still has a larger gap.

The existing control method for the leakage of the water supply network is realized by directly adding a pressure reducing valve to the area where leakage is expected to be controlled or constructing a large-scale pressure regulating station, but when the control method is adopted for leakage control, a better effect is difficult to achieve.

Disclosure of Invention

The embodiment of the application provides a pressure regulating method and pressure regulating equipment for a water supply network, which can solve the problem that the input cost and benefit are difficult to meet the user demands due to the fact that a pressure reducing valve is directly added or a large-scale pressure regulating station is built for realizing the existing pressure regulating control method.

In a first aspect, an embodiment of the present application provides a method for adjusting a pressure of a water supply network, including:

acquiring target information of a first area, wherein the first area is an area needing to regulate the pressure of a water supply network, the target information comprises distribution information of flow equipment and pressure equipment in the first area, the flow equipment is used for measuring the flow of a pipeline where the flow equipment is located, and the pressure equipment is used for measuring the pressure of the pipeline where the pressure equipment is located;

The water supply network of the first area is connected with a movable pressure regulating device according to the target information, the movable pressure regulating device can move, the movable pressure regulating device comprises a temporary flow device and/or a temporary pressure device, and further comprises a pressure reducing valve, a controller and a pipeline which is communicated with the pressure reducing valve, the controller, the temporary flow device and/or the temporary pressure device, wherein the temporary flow device is the flow device in the movable pressure regulating device, the temporary pressure device is the pressure device in the movable pressure regulating device, after one end of the water supply network is connected with the movable pressure regulating device, water of the water supply network flows into the other end of the water supply network through the temporary flow device and/or the temporary pressure device and then through the pressure reducing valve from the pipeline behind the pressure reducing valve;

acquiring a temporary flow value corresponding to the temporary flow equipment and/or a temporary pressure value corresponding to the temporary pressure equipment through the controller, and determining the pipe network caliber of the water supply pipe network according to the temporary flow value and/or the temporary pressure value;

the pressure reducing valve is adjusted through the controller and the pipe network caliber so as to ensure that the water supply pipe network of the first area is consistent with the water quantity before being connected into the movable pressure regulating device after being connected into the movable pressure regulating device;

For each pressure regulating strategy, adjusting the pressure reducing valve in a matching manner with the pressure regulating strategy through the controller, and acquiring test data corresponding to the first area under the pressure regulating strategy, wherein the test data comprises pressure values and flow values respectively acquired from each pressure device and each flow device in the first area;

determining a target voltage regulation strategy from each voltage regulation strategy according to the test data and the original data, wherein the original data is: before the pressure regulation strategy is adopted to regulate the pressure of the first area, pressure values and flow values are respectively obtained from each pressure device and each flow device in the first area;

and selecting corresponding equipment to regulate the pressure of the water supply network in the first area according to the target pressure regulation strategy.

In a second aspect, an embodiment of the present application provides a pressure regulating method of a water supply network, which is applied to a mobile pressure regulating device, where the mobile pressure regulating device includes a temporary flow device and/or a temporary pressure device, and further includes a pressure reducing valve, a controller, and a pipeline that communicates the pressure reducing valve, the controller, the temporary flow device, and/or the temporary pressure device, where the temporary flow device is a flow device in the mobile pressure regulating device, and the temporary pressure device is a pressure device in the mobile pressure regulating device, and the pressure regulating method of the water supply network includes:

After the water supply network of the first area is connected with the movable pressure regulating device, water of the water supply network passes through the temporary flow equipment and/or the temporary pressure equipment, passes through the pressure reducing valve and flows into the other end of the water supply network from a pipeline behind the pressure reducing valve;

the temporary flow equipment performs flow measurement on a pipeline where the temporary flow equipment is located to obtain a temporary flow value;

the temporary pressure equipment performs pressure measurement on a pipeline where the temporary pressure equipment is located to obtain a temporary pressure value;

the controller obtains the temporary flow value and/or the temporary pressure value, determines the pipe network caliber of the water supply pipe network according to the temporary flow value and/or the temporary pressure value, and adjusts the pressure reducing valve according to the pipe network caliber so as to ensure that the water supply pipe network in the first area is consistent with the water quantity before being connected into the movable pressure regulating device after being connected into the movable pressure regulating device;

and for each pressure regulating strategy, the controller adjusts the pressure reducing valve in a matching way with the pressure regulating strategy, and acquires test data corresponding to the first area under the pressure regulating strategy, wherein the test data comprises pressure values and flow values respectively acquired from each pressure device and each flow device in the first area.

In a third aspect, an embodiment of the present application provides a voltage regulating device, including: a temporary flow device and/or a temporary pressure device, a memory, a controller and a computer program stored in the memory and operable on the controller, the pressure regulating device further comprising a pressure reducing valve, a controller and a conduit communicating the pressure reducing valve, the controller, the temporary flow device and/or the temporary pressure device, the controller implementing the method according to the second aspect when executing the computer program.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program which, when executed by a processor, implements a method as described in the second aspect.

In a fifth aspect, embodiments of the present application provide a computer program product for causing a voltage regulating device to perform the method according to the second aspect when the computer program product is run on the voltage regulating device.

Compared with the prior art, the embodiment of the application has the beneficial effects that:

in this embodiment of the present application, since the mobile pressure regulating device includes a temporary flow device and/or a temporary pressure device, and further includes a pressure reducing valve, a controller, and a pipe that communicates with the pressure reducing valve, the controller, the temporary flow device, and/or the temporary pressure device, after the mobile pressure regulating device is connected to a water supply network, it can be ensured that the water amount in the water supply network is unchanged before and after the mobile pressure regulating device is connected to the water supply network. Meanwhile, since the movable pressure regulating device is a movable device, after the target information of the first area is acquired, the movable pressure regulating device can be dynamically connected into a water supply network of the first area according to the target information comprising the distribution information of the flow equipment and the pressure equipment in the first area, namely, fixed equipment is not required to be installed when the test data under each pressure regulating strategy are acquired, so that the investment of cost can be reduced. Meanwhile, the target pressure regulating strategy is determined from a plurality of pressure regulating strategies according to the test data and the original data, so that the rationality of the target pressure regulating strategy can be ensured, the corresponding equipment is more accurate when the corresponding equipment is selected according to the target pressure regulating strategy, and the pressure regulation of the water supply network in the first area is more accurate. In summary, when the pressure regulating method of the water supply network provided by the embodiment of the application is adopted for pressure regulation, the best effect can be achieved with the least cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a flow chart of a method for regulating pressure of a water supply network according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart of another method for regulating pressure of a water supply network according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a voltage regulating device according to an embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise.

Embodiment one:

when the leakage of the water supply network is controlled, the leakage control can be realized only by directly adding a pressure reducing valve to the water supply network or constructing a large-scale pressure regulating station, and the cost of the pressure reducing valve or the large-scale pressure regulating station is required once the construction is carried out, and the cost is difficult to change, so that when the leakage control is carried out by adopting the method, a better effect is difficult to achieve.

In order to achieve a better effect with minimum cost, the embodiment of the application provides a pressure regulating method of a water supply network.

According to the method, a mobile pressure regulating device is connected to a first area according to target information of the first area, the first area is regulated according to each pressure regulating strategy, test data including flow values and pressure values of the first area under each pressure regulating strategy are obtained according to the mobile pressure regulating device, finally, according to the test data and original data including the flow values and the pressure values of the first area before pressure regulation, a target pressure regulating strategy is determined from a plurality of pressure regulating strategies, and finally, corresponding equipment is selected according to the target pressure regulating strategy to regulate the pressure of a water supply pipe network of the first area.

The following describes a pressure regulating method of a water supply network according to an embodiment of the present application with reference to the accompanying drawings.

Fig. 1 shows a flowchart of a pressure regulating method for a water supply network according to an embodiment of the present application, which is described in detail below:

step S11, obtaining target information of a first area, wherein the first area is an area where pressure regulation is required for a water supply network, the target information comprises distribution information of flow equipment and pressure equipment in the first area, the flow equipment is used for measuring flow of a pipeline where the flow equipment is located, and the pressure equipment is used for measuring pressure of the pipeline where the pressure equipment is located.

The first area may be a segment which is obtained by dividing a water supply network of a certain city and needs to be regulated. In practice, a first area typically includes a plurality of cells (e.g., including a plurality of buildings, etc.).

In this embodiment of the present application, the first area may be investigated to obtain the distribution information of the water supply network of the flow device and the pressure device in the first area, for example, at which inlet (or outlet) of the water supply network the flow device and/or the pressure device is installed.

Step S12, a water supply network of a first area is connected to a movable pressure regulating device according to target information, wherein the movable pressure regulating device can move and comprises a temporary flow device and/or a temporary pressure device, a pressure reducing valve, a controller and a pipeline which is communicated with the pressure reducing valve, the controller, the temporary flow device and/or the temporary pressure device, the temporary flow device is the flow device in the movable pressure regulating device, the temporary pressure device is the pressure device in the movable pressure regulating device, and after one end of the water supply network is connected to the movable pressure regulating device, water of the water supply network flows into the other end of the water supply network through the temporary flow device and/or the temporary pressure device and through the pressure reducing valve and then flows into the other end of the water supply network through the pipeline after the pressure reducing valve.

The movable pressure regulating device can be arranged on a vehicle, and the movement of the movable pressure regulating device is realized through the movement of the vehicle. Wherein, portable pressure regulating device of this application embodiment includes the pipeline that can be connected with the pipeline in the water supply pipe network, is provided with relief valve, controller and interim flow device and/or interim pressure device on this pipeline, and when portable pressure regulating device included interim flow device and interim pressure device simultaneously, this portable pressure regulating device's pipeline will communicate relief valve, controller, interim flow device and interim pressure device. In some embodiments, the number of pressure relief valves, the number of temporary flow devices, and the number of temporary pressure devices may each include a plurality to accommodate the needs of different cells. Taking pressure reducing valves as an example, the caliber of water supply pipelines used by the communities needing pressure regulation may be various, so after a plurality of pressure reducing valves or various types of pressure reducing valves are combined, the water quantity of the pipelines entering the movable pressure regulating device can be regulated, so that the water quantity of the pipelines entering the movable pressure regulating device is consistent with the water quantity of the water supply pipelines needing pressure regulation, namely, when facing the pressure regulation requirements of the communities (even if the pipe network calibers of the water supply pipe networks of different communities are different), one movable pressure regulating device is used in turn in each community, and the pressure regulation requirements of the communities can be met.

In the embodiment of the application, the distribution information of the flow equipment and the pressure equipment of the water supply pipeline in the first area in the target information is analyzed to determine which places need to be added with temporary flow equipment and/or pressure equipment. For example, if it is desired to obtain a flow value at the a position, and no flow device is installed at the a position, it is necessary to install a temporary flow device at the a position, that is, to connect a mobile pressure regulator to a water supply pipe at the a position, so as to connect the temporary flow device of the mobile pressure regulator. Specifically, the water supply pipeline at the position A is cut off, one end of the cut pipeline is connected to one end of the pipeline in the movable pressure regulating device, and the other end of the pipeline in the movable pressure regulating device is connected to the other end of the cut pipeline, so that the water supply pipeline in the first area is still a closed water supply pipeline even after being connected to the movable pressure regulating device. That is, the water in the first cell flows in from the pipe of the mobile pressure regulator, passes through the temporary flow rate value and/or the temporary pressure equipment in the mobile pressure regulator, passes through the pressure reducing valve (or the combination of pressure reducing valves) in the mobile pressure regulator, and the like, flows out from the mobile pressure regulator, and flows again into the water supply network of the first area.

In some embodiments, if the temporary flow device and/or the temporary pressure device are/is installed at different positions, different vehicles including the movable pressure regulating devices may be respectively driven to the different positions, and then the movable pressure regulating devices of the corresponding vehicles are respectively connected to the different positions, so as to connect to the temporary flow device and/or the temporary pressure device on the corresponding movable pressure regulating devices.

Step S13, acquiring a temporary flow value corresponding to the temporary flow device and/or a temporary pressure value corresponding to the temporary pressure device through the controller, and determining the pipe network caliber of the water supply pipe network according to the temporary flow value and/or the temporary pressure value.

In the embodiment of the application, since a certain corresponding relation exists between the pipe network caliber of the water supply pipe network and the flow value and/or the pressure value in the pipeline, the pipe network caliber can be determined according to the flow value and/or the pressure value.

And S14, adjusting the pressure reducing valve through the controller and the pipe network caliber to ensure that the water quantity of the water supply pipe network in the first area is consistent with the water quantity before the water supply pipe network is connected to the movable pressure regulating device.

The water quantity refers to the instantaneous flow, namely the instantaneous flow of the section of pipeline connected with the movable pressure regulating device is the same as the instantaneous flow when the movable pressure regulating device is not connected with the movable pressure regulating device, and the instantaneous flow is not changed.

In this embodiment, since the pressure reducing valve and the temporary flow device and/or the temporary pressure device are both in the mobile pressure regulating device, the pipe network caliber determined according to the temporary flow value and/or the temporary pressure value can accurately reflect the water quantity of the pipe network segment connected to the mobile pressure regulating device, so that the accuracy of adjustment can be improved when the pressure reducing valve is adjusted according to the pipe network caliber.

And S15, for each pressure regulating strategy, regulating the pressure reducing valve by matching with the pressure regulating strategy through a controller, and acquiring test data corresponding to the first area under the pressure regulating strategy, wherein the test data comprises pressure values and flow values respectively acquired from each pressure device and each flow device in the first area.

In this embodiment, a plurality of voltage regulation strategies are preset, where the plurality of voltage regulation strategies include at least two of the following: a fixed pressure strategy, a time-based pressure regulation strategy, a flow-based pressure regulation strategy, and a least favorable point pressure regulation strategy.

The fixed pressure strategy is to ensure that the pressure value of the pressure-regulated water supply pipeline is a fixed value when the strategy is adopted, namely, the pressure value of the pressure-regulated water supply pipeline is the same regardless of the day or night.

The time-based pressure regulation strategy is to change the pressure value of the water supply pipeline subjected to pressure regulation according to time when the strategy is adopted, for example, the pressure value of the water supply pipeline is one pressure value in the daytime and the other pressure value in the evening.

The flow rate pressure regulating strategy is that when the strategy is adopted, the flow rate value of the pressure-regulated water supply pipeline is set to be a fixed value, namely, the flow rate value of the pressure-regulated water supply pipeline is the same regardless of the day or night.

The most adverse point pressure regulating strategy means that when the strategy is adopted, the pressure value and/or the flow value of the most adverse point of the regulated water supply pipeline meet the pressure and/or flow requirement of the most adverse point.

In this embodiment, for each pressure regulating strategy, the pipe network caliber corresponding to the pressure regulating strategy is determined, the pressure reducing valve (or the pressure reducing valve combination) is adjusted according to the determined pipe network caliber, then the flow value corresponding to each flow device (including temporary flow devices) in the first area is obtained, the pressure value corresponding to each pressure device (including temporary pressure devices) is obtained, and the obtained flow value and pressure value are used as test data (or part of test data) under the pressure regulating strategy.

In some embodiments, the test data further includes time information. When the time information of the same pressure regulating strategy is stored correspondingly to the flow value and the pressure value, the analysis of the flow value and the pressure value by combining the time information later is facilitated.

Step S16, determining a target voltage regulation strategy from all the voltage regulation strategies according to the test data and the original data, wherein the original data is: before the pressure regulation strategy is adopted to regulate the pressure of the first area, the pressure value and the flow value are respectively obtained from each pressure device and each flow device in the first area.

Specifically, the target pressure regulating strategy can be determined according to the comparison result of the pressure value at the inlet and the pressure value at the inlet in different pressure regulating strategies, the comparison result of the flow value at the inlet and the flow value at the inlet, the comparison result of the pressure value at the inlet and the pressure value at the inlet before pressure regulation, and the comparison result of the flow value at the inlet and the flow value at the inlet before pressure regulation.

In some embodiments, the target pressure regulation strategy may be further determined in conjunction with a relationship of pressure values and flow values. For example, when the pressure value is large, the flow value is also large, and when the magnitude of the increase of the flow value meets the requirement, the corresponding pressure regulating strategy is determined as the target pressure regulating strategy.

And S17, selecting corresponding equipment according to the target pressure regulating strategy to regulate the pressure of the water supply network in the first area.

In this embodiment, the selected device is associated with a determined target pressure regulation strategy, e.g., when the determined target pressure regulation strategy is a fixed pressure strategy, the selected device includes a constant pressure valve. For example, when the determined target pressure regulating strategy is a time-based pressure regulating strategy, the selected device includes a pressure regulating valve or the like.

In this application embodiment, because portable pressure regulating device includes interim flow equipment and/or interim pressure equipment, still includes relief pressure valve, controller and intercommunication relief pressure valve, controller, interim flow equipment and/or the pipeline of intercommunication interim pressure equipment, consequently, after portable pressure regulating device inserts the water supply network, can guarantee to insert before this portable pressure regulating device after, the water yield in this water supply network is unchanged. Meanwhile, since the movable pressure regulating device is a movable device, after the target information of the first area is acquired, the movable pressure regulating device can be dynamically connected into a water supply network of the first area according to the target information comprising the distribution information of the flow equipment and the pressure equipment in the first area, namely, fixed equipment is not required to be installed when the test data under each pressure regulating strategy are acquired, so that the investment of cost can be reduced. Meanwhile, the target pressure regulating strategy is determined from the plurality of pressure regulating strategies according to the test data and the original data, so that the rationality of the target pressure regulating strategy can be ensured, corresponding equipment is also more accurate when the corresponding equipment is selected according to the target pressure regulating strategy, and the pressure regulation of the water supply network in the first area is more accurate. In summary, when the pressure regulating method of the water supply network provided by the embodiment of the application is adopted for pressure regulation, the best effect can be achieved with the least cost.

In some embodiments, before the step S11, the method includes:

a1, acquiring environmental information of an inlet of a water supply network of a second area, wherein the second area is an area to be evaluated whether the water supply network needs to be regulated or not, and the environmental information comprises space size.

In this embodiment, if it is necessary to determine whether to regulate the pressure of the water supply network in one area, the area is the second area of this embodiment.

When the temporary flow equipment and/or the temporary pressure equipment are installed, the temporary flow equipment and/or the temporary pressure equipment in the movable pressure regulating device are connected, and the movable pressure regulating device occupies a certain volume, so that the environment information including the space size at the inlet of the water supply network is required to be acquired.

In some embodiments, the above-described environmental information further includes a floor attribution attribute at an entrance of the water supply network, the floor attribution attribute being used to indicate whether the floor is public or private.

In this embodiment, when the ground belongs to private, for example, when the ground at the entrance of the water supply network is a private courtyard, the mobile pressure regulating device is inconvenient to enter the private courtyard, so that the attribute of the ground is acquired as one of the environmental information, which is beneficial to improving the accuracy of the judgment result of whether the temporary flow device and the temporary pressure device can be accessed in the subsequent judgment.

A2, judging whether the movable pressure regulating device can be accommodated around the inlet according to the environment information.

In this embodiment, according to the size of the space included in the environmental information and the volume of the mobile pressure regulating device, it is determined whether there is enough space around the entrance to accommodate the mobile pressure regulating device.

In some embodiments, if the environmental information further includes a ground attribution attribute, after determining that there is enough space around the entrance to accommodate the mobile pressure regulating device, it is further required to determine whether the ground attribution attribute at the entrance is public, and if so, determine that a temporary flow device and/or a temporary pressure device in the mobile pressure regulating device can be connected around the entrance.

A3, judging whether the second area is used as the first area according to a judging result of whether the movable pressure regulating device can be accommodated around the inlet.

In this embodiment of the application, because only guarantee that the movable pressure regulating device can be held around the entrance, only be possible to realize measuring water supply pipe network's pressure value and flow value through removing this movable pressure regulating device, consequently, this embodiment of the application judges at first that an area can hold movable pressure regulating device after, regard this area again as the area that needs to carry out the pressure regulating to water supply pipe network, can guarantee that follow-up pressure regulating to water supply pipe network can carry out smoothly.

In some embodiments, the A3 includes:

a31, acquiring a flow value and a pressure value at the inlet of the water supply network of the second area.

In this embodiment, the flow value at the inlet of the water supply network is measured by the flow device at the inlet, and the pressure value at the inlet of the water supply network is measured by the pressure device at the inlet.

A32, acquiring a flow value and a pressure value of a target entrance of the water supply pipeline network of the second area and a target distance between the entrance and the target entrance, wherein the target distance comprises a horizontal distance and/or a vertical distance.

The target entrance is an entrance selected from the entrance of the second area, and the target entrance is usually the entrance with the largest height difference (i.e. vertical distance) from the entrance in the second area and/or the entrance with the largest horizontal distance from the entrance.

In this embodiment, considering that the entrance is usually underground in a first floor, the vertical distance between the entrance and the target entrance can be calculated from the floor height of the target entrance. For example, assuming that the entrance is in an underground pipeline of one floor and the target entrance is in 7 floors, the floor height of the target entrance is calculated according to the height of each floor, and then the floor height of the target entrance is taken as the vertical distance between the entrance and the target entrance.

In some embodiments, the vertical distance between the doorway and the target landing may also be calculated from the two acquired altitudes by acquiring the altitude at the doorway and the altitude at the target landing, respectively.

A33, judging whether the second area is used as the first area according to the flow value and the pressure value at the inlet and according to the flow value and the pressure value at the target home, and the target distance between the inlet and the target home.

In the embodiment of the application, the flow value of the target entrance is estimated according to the target distance between the entrance and the target entrance and the flow value of the entrance, so as to obtain an estimated flow value, and meanwhile, the pressure value of the target entrance is estimated according to the target distance between the entrance and the target entrance and the pressure value of the entrance, so as to obtain an estimated pressure value. And comparing the estimated flow value with the flow value at the target entrance to obtain a flow comparison result, and comparing the estimated pressure value with the pressure value at the target entrance to obtain a pressure comparison result, wherein if the flow comparison result meets the requirement, if the flow comparison result indicates that the estimated flow value is not greatly different from the flow value at the target entrance, the leakage of the water supply pipeline in the second area is not serious, and at the moment, if the second area is subjected to pressure regulation, no greater benefit is obtained, so that the second area is not used as the first area in the embodiment of the application, otherwise, the second area is used as the first area in the embodiment of the application.

In this embodiment of the present application, since it is first predetermined whether the second area has the need of voltage regulation, the second area is used as the first area only after the second area has the need of voltage regulation, that is, the step of acquiring the target information of the second area is performed after the second area is used as the first area, and the step of acquiring the target information needs to consume a certain amount of cost and time, therefore, the cost and time for voltage regulation input can be saved by screening the second area.

In some embodiments, the target information further includes user type, population number and water usage information of different time periods, and the step S12 includes:

b1, determining the installation position in the first area according to the distribution information.

In this embodiment, if the distribution information indicates that the user wishes to obtain a pressure value and/or a flow value at a location where no pressure device or no flow device is installed, the location is taken as the installation location.

B2, determining the installation time in the first area according to the user type, population number and water consumption information of different time periods.

Among these, user types include factories, schools, hospitals, residents, and the like.

The population number refers to the population number in unit time, and the larger the population number is, the larger population density is indicated.

In this embodiment, since the water supply to the position where the flow device or the pressure device is to be installed needs to be turned off, it is necessary to select a time that does not affect the water consumption of the user as much as possible as the installation time, so as to reduce the influence on the user as much as possible.

Because the user type, population number and water consumption information of different time periods can reflect the reasonable water consumption of the first area, the time period with less water consumption can be selected from the water consumption information of different time periods, the reasonable water consumption of the user in the time periods is determined according to the user type, population number and the like, and finally the time period with the least difference between the water consumption and the reasonable water consumption of the user in the time period with less water consumption is selected as the installation time. For example, assuming that a user type of a certain user indicates that the user is a factory, a reasonable amount of water for the factory is relatively large, and is likely to be related according to the operating time of the factory; if the user type of the user indicates that the user is a hospital, the reasonable water consumption of the hospital is relatively large and is probably irrelevant to time; if the user type of the user indicates that the user is a normal resident, the reasonable water usage of the resident is relatively small, and the reasonable water usage during the day will be greater than the reasonable water usage during the late night.

In this embodiment of the present application, reasonable water consumption corresponding to different user types, different population numbers and different time periods is preset, so, after obtaining the water consumption information of the user types, population numbers and different time periods, the reasonable water consumption corresponding to the user types, population numbers and different time periods is determined first, and then the actual water consumption is compared with the reasonable water consumption, so as to determine the time period where the actual water consumption and the reasonable water consumption differ least as the installation time.

And B3, accessing the movable pressure regulating device into the water supply pipe network of the first area according to the installation position and the installation time.

Specifically, the movable pressure regulating device (such as a movable pressure regulating vehicle) is moved to the installation position, and then the temporary flow device and/or the temporary pressure device of the movable pressure regulating vehicle are/is connected to the corresponding pipeline at the installation time, so that the installation of the temporary flow device and/or the temporary pressure device is realized.

In this embodiment of the present application, since the distribution information of the flow device and the pressure device can reflect the positions where the flow value and the pressure value can be currently obtained, the positions where the pressure device and the flow device need to be temporarily added can be determined according to the existing distribution information. In addition, since the reasonable water consumption of the first area in different time periods can be determined according to the user type, population number and water consumption information of different time periods, the time with the least water consumption influence on the user can be determined according to the user type, population number and water consumption information of different time periods, and the determined time is taken as the installation time, so that the water consumption influence on the user is the least when the temporary flow device and/or the temporary pressure device is installed in the installation time.

In some embodiments, the target information further includes a most adverse point and a lowest pressure value of the first area, and the step B1 includes:

and determining an installation position in the first area according to the distribution information, the most unfavorable point and the lowest pressure value.

The number of the most unfavorable points may be a plurality, and if there are a plurality of the most unfavorable points, the minimum pressure value is determined as the lowest pressure value from the plurality of the most unfavorable points. Of course, if there is only one of the most adverse points, the pressure value corresponding to the most adverse point is the lowest pressure value.

In the embodiment of the application, since the position corresponding to the most adverse point and the lowest pressure value is usually the point of attention of the user, that is, the position is easy to become a complaint point, the most adverse point and the lowest pressure value need to be considered when determining the installation position, so that the corresponding pressure regulating strategy is selected by combining the most adverse point and the lowest pressure value when regulating the pressure, and the accuracy of the target pressure regulating strategy determined later is improved.

In some embodiments, the step S14 includes:

and C1, estimating the water leakage quantity which can be reduced by each pressure regulating strategy according to the test data and the original data.

In this embodiment, for each pressure regulating policy, the flow difference between the two flow values can be calculated according to the flow value in the corresponding test data and the flow value before the pressure regulating policy is adopted (i.e. the flow value in the original data), and then the leakage water quantity corresponding to the pressure regulating policy is determined according to the flow difference and the corresponding pressure regulating duration.

And C2, estimating the input cost and the obtained benefit required by adopting each pressure regulating strategy to regulate pressure.

In this embodiment, the equipment required for each voltage regulation strategy is determined, and the purchase cost, the installation cost, and the like required for the equipment are calculated as input costs.

In this embodiment, for each pressure regulating strategy, according to the reducible water leakage amount and the water price corresponding to the pressure regulating strategy, the benefit obtained when the pressure regulating strategy is adopted for pressure regulation is calculated.

And C3, determining the target pressure regulating strategy from the pressure regulating strategies according to the estimated reducible water leakage quantity, the input cost and the benefits.

In this embodiment, from the pressure regulating strategies, a pressure regulating strategy with a large amount of reducible lost water, a small input cost and a high benefit is selected as the target pressure regulating strategy.

In some embodiments, the above-mentioned C3 also combines the feasibility of the voltage regulation strategy, etc. when determining the target voltage regulation strategy from the respective voltage regulation strategies, for example, whether the equipment required by the voltage regulation strategy has enough space for installation, etc.

In some embodiments, the target information further includes a most adverse point, a lowest pressure value, and an average pressure value of the first area, and the step S12 includes:

and D1, if the difference value between the lowest pressure value and the average pressure value is larger than a preset difference value threshold, removing the most adverse point corresponding to the lowest pressure value from the first area to obtain a target area.

When the difference between the lowest pressure value and the average pressure value of the first area is large, it is indicated that it is difficult to realize uniform pressure regulation between the lowest pressure value and the pressure value of other positions of the first area. For example, when the water demand at the most adverse point is satisfied, the pressure value of the first area needs to be ensured to be high, and at this time, if there is a leak in the water supply pipeline of the first area, a large leak will be caused, and if the water demand at other positions of the first area is satisfied only, the water demand at the most adverse point corresponding to the lowest pressure value cannot be ensured.

And D2, accessing the movable pressure regulating device into the water supply pipe network of the target area according to the target information.

Specifically, the installation of the flow device and/or the temporary pressure device is performed in the target area according to the distribution information of the flow device and the pressure device in the target area.

In the embodiment of the application, the most unfavorable point corresponding to the lowest pressure value is removed from the first area, so that the convenience of pressure regulation of the most unfavorable point and the target area is improved. For example, the pump is independently arranged on the most unfavorable point, and the pressure value of the target area is independently regulated, so that the water consumption requirement of the most unfavorable point can be met, and the water consumption requirement of the target area can also be met.

In some embodiments, after the step S15, the method includes:

and E1, acquiring the pressure value and the flow value of the first region after pressure regulation.

And E2, acquiring the complaint condition of the user.

And E3, judging whether the target pressure regulating strategy needs to be regulated according to the pressure value after pressure regulation, the flow value after pressure regulation and the user complaint condition.

In this embodiment of the present application, a corresponding relationship graph is determined according to a pressure value and a flow value after pressure adjustment, if an abnormality exists in the relationship reflected by the pressure value and the flow value in the determined relationship graph, for example, if the pressure value is increased and the flow value is not increased, it indicates that the pressure value and the flow value after pressure adjustment are abnormal, and at this time, it indicates that the target pressure adjustment strategy needs to be adjusted. Similarly, if the number of complaints of the user increases after the adjustment according to the target voltage regulation strategy, the target voltage regulation strategy also needs to be adjusted. After determining the target pressure regulating strategy, whether adjustment is needed or not is judged according to the pressure value and the flow value corresponding to the target pressure regulating strategy and the complaint condition of the user, for example, the target pressure regulating strategy is based on the time pressure regulating strategy, the time pressure regulating strategy is based on the time pressure regulating strategy, the pressure value is regulated at 10-11 points, the pressure value is regulated at 01-04 points, and if more user complaints are received under the strategy, the time point corresponding to the high pressure regulating value and/or the time point corresponding to the high pressure regulating value are adjusted. By means of the adjustment, the accuracy of the time-based voltage regulation strategy is improved.

It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic of each process, and should not limit the implementation process of the embodiment of the present application in any way.

Embodiment two:

fig. 2 shows a flowchart of another pressure regulating method for a water supply network, which is provided in an embodiment of the present application, and is applied to a mobile pressure regulating device as in the first embodiment, where the mobile pressure regulating device includes a temporary flow device and/or a temporary pressure device, and further includes a pressure reducing valve, a controller, and a pipe communicating with the pressure reducing valve, the controller, the temporary flow device, and/or the temporary pressure device. The pressure regulating method of the water supply network provided by the embodiment of the application comprises the following steps:

after the water supply network of the first area is connected to the movable pressure regulating device, water of the water supply network flows through the temporary flow equipment and/or temporary pressure equipment, and through the pressure reducing valve, and flows into the other end of the water supply network from a pipeline behind the pressure reducing valve.

The first area is an area where pressure regulation is needed for the water supply network, and when the water supply network of the first area is connected to the mobile pressure regulating device, the water supply network is still a closed water supply network.

And S21, the temporary flow equipment performs flow measurement on the pipeline where the temporary flow equipment is located, and a temporary flow value is obtained.

And S22, the temporary pressure equipment performs pressure measurement on the pipeline where the temporary pressure equipment is located, and a temporary pressure value is obtained.

Step S23, the controller acquires the temporary flow value and/or the temporary pressure value, determines the pipe network caliber of the water supply pipe network according to the temporary flow value and/or the temporary pressure value, and adjusts the pressure reducing valve according to the pipe network caliber so as to ensure that the water supply pipe network in the first area is consistent with the water quantity before being connected to the movable pressure regulating device after being connected to the movable pressure regulating device.

Step S24, for each pressure regulating strategy, the controller adjusts the pressure reducing valve in a manner of matching with the pressure regulating strategy, and obtains test data corresponding to the first area under the pressure regulating strategy, where the test data includes pressure values and flow values obtained from each pressure device and each flow device in the first area.

In this embodiment of the present application, since the mobile pressure regulating device includes a temporary flow device and/or a temporary pressure device, and further includes a pressure reducing valve, a controller, and a pipe that communicates with the pressure reducing valve, the controller, the temporary flow device, and/or the temporary pressure device, after the mobile pressure regulating device is connected to a water supply network, it can be ensured that the water quantity in the water supply network is unchanged before and after the mobile pressure regulating device is connected to the water supply network. Meanwhile, the movable pressure regulating device is a movable device, so that the movable pressure regulating device can be dynamically connected into the water supply network in the first area, namely, fixed equipment is not required to be installed when test data under each pressure regulating strategy are acquired, and the investment of cost can be reduced. Meanwhile, the target pressure regulating strategy is determined from a plurality of pressure regulating strategies according to the test data and the original data, so that the rationality of the target pressure regulating strategy can be ensured, the corresponding equipment is more accurate when the corresponding equipment is selected according to the target pressure regulating strategy, and the pressure regulation of the water supply network in the first area is more accurate. In summary, when the pressure regulating method of the water supply network provided by the embodiment of the application is adopted for pressure regulation, the best effect can be achieved with the least cost.

In some embodiments, after step S24, further comprising:

and determining a target pressure regulating strategy from each pressure regulating strategy by the controller according to the test data and the original data, wherein the original data is a pressure value and a flow value respectively acquired from each pressure device and each flow device in the first area before the pressure of the first area is regulated by adopting the pressure regulating strategy.

Embodiment III:

corresponding to the pressure regulating method of the water supply network in the second embodiment, fig. 3 is a schematic structural diagram of the pressure regulating device according to an embodiment of the present application. As shown in fig. 3, the voltage regulating device 3 of this embodiment includes: at least one controller 30 (only one controller is shown in fig. 3), a memory 31, and a computer program 32 stored in the memory 31 and operable on the at least one controller 30, the voltage regulating device 3 further comprises: temporary flow device 33 and/or temporary pressure device (not shown in fig. 3), pressure relief valve 34, and a conduit (not shown in fig. 3) that communicates with the pressure relief valve 34 (only one of which is shown in fig. 3), the controller 30, the temporary flow device 33, and/or the temporary pressure device.

Wherein:

the temporary flow device 33 is used for measuring the flow of the pipeline in which it is located, and obtaining a temporary flow value.

The temporary pressure equipment is used for measuring the pressure of the pipeline where the temporary pressure equipment is located, and a temporary pressure value is obtained.

The controller 30 is configured to obtain a temporary flow value and/or the temporary pressure value, determine a pipe network caliber of the water supply pipe network according to the temporary flow value and/or the temporary pressure value, and adjust the pressure reducing valve according to the pipe network caliber, so as to ensure that the water supply pipe network in the first area is consistent with the water quantity before being connected to the mobile pressure regulating device after being connected to the mobile pressure regulating device;

for each pressure regulation strategy, the controller 30 adjusts the pressure reduction valve in a manner matching the pressure regulation strategy, and obtains test data corresponding to the first area under the pressure regulation strategy, where the test data includes pressure values and flow values obtained from each pressure device and each flow device in the first area.

In some embodiments, the controller 30 is further configured to determine a target pressure regulation strategy from the pressure regulation strategies according to the test data and the raw data, where the raw data is a pressure value and a flow value respectively obtained by the controller 30 from each pressure device and each flow device in the first area before the pressure regulation strategy is adopted for the first area.

It will be appreciated by those skilled in the art that fig. 3 is merely an example of the voltage regulating device 3 and does not constitute a limitation of the voltage regulating device 3, and may include more or less components than illustrated, or may combine certain components, or different components, such as may also include input-output devices, network access devices, etc.

The controller 30 may be a central processing unit (Central Processing Unit, CPU), and the controller 30 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 31 may be an internal storage unit of the voltage regulating device 3 in some embodiments, such as a hard disk or a memory of the voltage regulating device 3. The memory 31 may also be an external storage device of the voltage regulator 3 in other embodiments, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash Card (Flash Card) or the like, which are provided on the voltage regulator 3. Further, the memory 31 may also include both an internal memory unit and an external memory device of the voltage regulating device 3. The memory 31 is used for storing an operating system, an application program, a boot loader (BootLoader), data, other programs, and the like, such as program codes of the computer programs. The above-described memory 31 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.

The embodiment of the application also provides a network device, which comprises: at least one processor, a memory and a computer program stored in the memory and executable on the at least one processor, the processor implementing the steps in any of the various method embodiments described above when the computer program is executed by the processor.

The embodiments of the present application also provide a computer readable storage medium storing a computer program, where the computer program is executed by a processor to implement steps in each of the method embodiments described above.

Embodiments of the present application provide a computer program product which, when run on an electronic device, causes the electronic device to perform steps that may be performed in the various method embodiments described above.

The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application implements all or part of the flow of the method of the above embodiments, and may be implemented by a computer program to instruct related hardware, where the above computer program may be stored in a computer readable storage medium, where the computer program, when executed by a processor, may implement the steps of each of the method embodiments described above. The computer program comprises computer program code, and the computer program code can be in a source code form, an object code form, an executable file or some intermediate form and the like. The computer readable medium may include at least: any entity or device capable of carrying computer program code to a camera device/electronic apparatus, a recording medium, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, and a software distribution medium. Such as a U-disk, removable hard disk, magnetic or optical disk, etc. In some jurisdictions, computer readable media may not be electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/network device and method may be implemented in other manners. For example, the apparatus/network device embodiments described above are merely illustrative, e.g., the division of modules or elements described above is merely a logical functional division, and there may be additional divisions in actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.

The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. A pressure regulating method for a water supply network, comprising:

selecting corresponding equipment to regulate the pressure of the water supply network of the first area according to the target pressure regulation strategy;

the target information further comprises a most unfavorable point, a lowest pressure value and an average pressure value of the first area, and the movable pressure regulating device is connected to the water supply network of the first area according to the target information, and comprises:

if the difference value between the lowest pressure value of the first area and the average pressure value of the first area is larger than a preset difference value threshold, removing the most unfavorable point corresponding to the lowest pressure value from the first area to obtain a target area;

And accessing the movable pressure regulating device into a water supply pipe network of the target area according to the target information so as to regulate the pressure of the target area and the least adverse point corresponding to the lowest pressure value respectively.

2. The method for regulating pressure of a water supply network as set forth in claim 1, wherein before said obtaining the target information of the first area, comprising:

acquiring environmental information at an inlet of a water supply network of a second area, wherein the second area is an area to be evaluated whether the water supply network needs to be regulated or not, and the environmental information comprises space size;

judging whether the movable pressure regulating device can be accommodated around the inlet according to the environmental information;

judging whether the second area is used as the first area according to the judging result of whether the movable pressure regulating device can be accommodated around the inlet.

3. The method for regulating pressure of a water supply network as set forth in claim 2, wherein said determining whether the second area is the first area according to a determination result of whether the movable pressure regulating device can be accommodated around the entrance comprises:

acquiring a flow value and a pressure value at an inlet of a water supply network of the second area;

Acquiring a flow value and a pressure value of a target household position of a water supply pipe network of the second area and a target distance between the inlet position and the target household position, wherein the target distance comprises a horizontal distance and/or a vertical distance;

and judging whether the second area is used as the first area according to the flow value and the pressure value at the inlet and according to the flow value and the pressure value at the target home, and the target distance between the inlet and the target home.

4. The method for regulating pressure of a water supply network according to claim 1, wherein the target information further comprises user type, population number and water use condition information of different time periods, and the water supply network according to the target information is connected to a mobile pressure regulating device in the first area, comprising:

determining an installation position in the first area according to the distribution information;

determining installation time in the first area according to the user type, population number and water use condition information of different time periods;

and accessing the movable pressure regulating device to the water supply pipe network in the first area according to the installation position and the installation time.

5. The method of pressure regulation of a water supply network of claim 4, wherein the target information further includes a least favorable point and a least favorable pressure value of the first area, and wherein determining the installation position in the first area based on the distribution information comprises:

And determining a mounting position in the first area according to the distribution information, the most unfavorable point and the lowest pressure value.

6. The method for regulating pressure of a water supply network according to claim 1, wherein determining a target pressure regulating strategy from the respective pressure regulating strategies according to the test data and the raw data comprises:

according to the test data and the original data, estimating the water leakage quantity which can be reduced by each pressure regulating strategy;

estimating the input cost and the obtained benefit required by adopting each pressure regulating strategy to regulate pressure;

and determining the target pressure regulating strategy from the pressure regulating strategies according to the estimated reducible water leakage quantity, the investment cost and the benefits.

7. The utility model provides a pressure regulating method of water supply network, characterized in that is applied to portable pressure regulating device, portable pressure regulating device includes interim flow equipment and/or interim pressure equipment, still includes relief pressure valve, controller and intercommunication relief pressure valve, the controller, interim flow equipment and/or the pipeline of intercommunication interim pressure equipment, the pressure regulating method of water supply network includes:

for each pressure regulating strategy, the controller adjusts the pressure reducing valve in a matching way with the pressure regulating strategy, and acquires test data corresponding to the first area under the pressure regulating strategy, wherein the test data comprises pressure values and flow values respectively acquired from each pressure device and each flow device in the first area;

the mobile pressure regulating device is connected to the water supply network of the first area according to the following mode:

if the difference value between the lowest pressure value of the first area and the average pressure value of the first area is larger than a preset difference value threshold, removing the least favorable point corresponding to the lowest pressure value from the first area to obtain a target area;

And accessing the movable pressure regulating device to the water supply pipe network of the target area according to target information so as to regulate the pressure of the target area and the least favorable point corresponding to the lowest pressure value, wherein the target information comprises the distribution information of flow equipment and pressure equipment in the first area, and further comprises the least favorable point, the lowest pressure value and the average pressure value of the first area.

8. A voltage regulating apparatus, characterized in that the voltage regulating apparatus comprises: a temporary flow device and/or a temporary pressure device, a memory, a controller and a computer program stored in the memory and operable on the controller, the pressure regulating device further comprising a pressure reducing valve, a controller and a conduit communicating the pressure reducing valve, the controller, the temporary flow device and/or the temporary pressure device, the controller implementing the method of claim 7 when executing the computer program.

9. A computer readable storage medium storing a computer program, which when executed by a processor implements the method of claim 7.