CN108924954B - Water pollution monitoring method and system based on wireless network - Google Patents
Water pollution monitoring method and system based on wireless network Download PDFInfo
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- CN108924954B CN108924954B CN201810850801.5A CN201810850801A CN108924954B CN 108924954 B CN108924954 B CN 108924954B CN 201810850801 A CN201810850801 A CN 201810850801A CN 108924954 B CN108924954 B CN 108924954B
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- 238000003911 water pollution Methods 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 21
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- 238000001514 detection method Methods 0.000 claims abstract description 262
- 230000005540 biological transmission Effects 0.000 claims abstract description 76
- 230000004044 response Effects 0.000 claims abstract description 75
- 238000012790 confirmation Methods 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/11—Allocation or use of connection identifiers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention provides a water pollution monitoring method based on a wireless network, which comprises the following steps: collecting water pollution information by a wireless detection terminal; a wireless detection terminal sends a request message for establishing a transmission path to a monitoring center; receiving, by the wireless detection terminal, a transmission path establishment response message; a wireless detection terminal sends a water pollution information message to a monitoring center; judging whether the wireless detection terminal receives a water pollution information receiving confirmation response message or not; if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, the wireless detection terminal judges whether the number of times of retransmitting the water pollution information message reaches a threshold value; if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, a request message for establishing a transmission path is sent to the monitoring center again; if the number of times of retransmitting the water pollution information message does not reach the threshold value, the water pollution information message is retransmitted to the monitoring center.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a water pollution monitoring method and system based on a wireless network.
Background
In the historic gallery of urban development, water is the pulse of a human being, which determines the survival, continuation and development of the human being; water is the basis for social progress and human civilization, enhancing the affinity of humans for nature. In the past, one city is nourished by one water, and one city is in a cultural thousand old times due to the condensation of water: ancient Roman, water has pushed the water wheels of mill: indian river and rhesus fosters indian civilization; steam drives the piston of the steam engine of the earliest eighteenth century; in China, one Yangtze river and one yellow river nourish five thousands of years of China civilization, and tens of millions of cultural ancient and historical famous cities are inoculated. In the development process of the city in China, no matter from production to life, the city is not boiled. Water is the pulse of a city and is the basis for development. However, the water resources in nature are limited, and with the continuous rise of the water resource demands of human beings, the problem of urban water supply development is also highlighted. Therefore, how to protect and improve the water environment is the subject of common research in the current society.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a water pollution monitoring method and system based on a wireless network, so that the defects of the prior art are overcome.
The invention provides a water pollution monitoring method based on a wireless network, which is characterized by comprising the following steps of: the water pollution monitoring method based on the wireless network comprises the following steps:
collecting water pollution information by a wireless detection terminal;
transmitting a transmission path establishment request message to the monitoring center by the wireless detection terminal, wherein the transmission path establishment request message comprises an identity identifier specific to the wireless detection terminal;
receiving, by the wireless detection terminal, a set-up transmission path response message, wherein the set-up transmission path response message is sent by the monitoring center in response to receiving the set-up transmission path request message, and wherein the transmission path response message includes one of a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator;
transmitting a water pollution information message to a monitoring center by the wireless detection terminal, wherein the water pollution information message comprises an identity identifier specific to the wireless detection terminal;
judging whether the wireless detection terminal receives a water pollution information receiving confirmation response message, wherein the water pollution information receiving confirmation response message is sent by the monitoring center in response to the water pollution information receiving message;
if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, the wireless detection terminal judges whether the number of times of retransmitting the water pollution information message reaches a threshold value;
if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, a request message for establishing a transmission path is sent to the monitoring center again;
if the number of times of retransmitting the water pollution information message does not reach the threshold value, retransmitting the water pollution information message to the monitoring center;
wherein the threshold value is determined based on the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator.
Preferably, in the above technical solution, the threshold value is determined based on the following method:
analyzing, by the wireless detection terminal, the received established transmission path response message to determine whether to obtain the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator;
generating a first threshold value based on the first type wireless detection terminal indicator if the first type wireless detection terminal indicator is determined to be obtained;
generating a second threshold value based on the first type wireless detection terminal indicator if it is determined that the second type wireless detection terminal indicator is obtained;
wherein the second threshold is greater than the first threshold.
Preferably, in the above technical solution, the monitoring center determines whether the transmission path response message includes the first type wireless detection terminal indicator or the second type wireless detection terminal indicator based on the identity identifier specific to the wireless detection terminal by:
establishing a corresponding relation between an identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
analyzing the received request message for establishing the transmission path by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
searching a corresponding relation based on the obtained identity identifier specific to the wireless detection terminal to obtain the number of times that the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
if the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is smaller than a preset value, judging that the transmission path response message comprises a first type wireless detection terminal indicator;
if the number of times that the wireless detection terminal with the specific identity identifier transmits the water pollution information message to the monitoring center is greater than a preset value, the transmission path response message is judged to comprise a second type wireless detection terminal indicator.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is implemented by the following steps:
analyzing the water pollution information message by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
querying, by the monitoring center, the list of identifiers to determine whether the obtained wireless detection terminal-specific identifier exists in the list of identifiers;
if the obtained identity identifier of the wireless detection terminal exists in the identity identifier list, the monitoring center updates the frequency item corresponding to the obtained identity identifier of the wireless detection terminal.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center further includes the following steps:
if the obtained identity of the wireless detection terminal does not exist in the identity list, the monitoring center adds the obtained identity of the wireless detection terminal to the list while setting the number of times item corresponding to the newly added obtained identity of the wireless detection terminal to 1.
The invention also provides a water pollution monitoring system based on the wireless network, which is characterized in that: the water pollution monitoring system based on the wireless network comprises the following steps:
a monitoring center;
the system comprises a plurality of wireless detection terminals, a monitoring center and a wireless detection system, wherein the plurality of wireless detection terminals are in communication connection with the monitoring center and are configured to:
collecting water pollution information;
transmitting a transmission path establishment request message to a monitoring center, wherein the transmission path establishment request message comprises an identity identifier specific to the wireless detection terminal;
receiving a set-up transmission path response message, wherein the set-up transmission path response message is sent by the monitoring center in response to receiving the set-up transmission path request message, and wherein the transmission path response message includes one of a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator;
transmitting a water pollution information message to a monitoring center, wherein the water pollution information message comprises an identity identifier specific to the wireless detection terminal;
judging whether the wireless detection terminal receives a water pollution information receiving confirmation response message, wherein the water pollution information receiving confirmation response message is sent by the monitoring center in response to the water pollution information receiving message;
if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, judging whether the number of times of retransmitting the water pollution information message reaches a threshold value;
if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, a request message for establishing a transmission path is sent to the monitoring center again;
if the number of times of retransmitting the water pollution information message does not reach the threshold value, retransmitting the water pollution information message to the monitoring center;
wherein the threshold value is determined based on the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator.
Preferably, in the above technical solution, the threshold value is determined based on the following method:
analyzing, by the wireless detection terminal, the received established transmission path response message to determine whether to obtain the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator;
generating a first threshold value based on the first type wireless detection terminal indicator if the first type wireless detection terminal indicator is determined to be obtained;
generating a second threshold value based on the first type wireless detection terminal indicator if it is determined that the second type wireless detection terminal indicator is obtained;
wherein the second threshold is greater than the first threshold.
Preferably, in the above technical solution, the monitoring center determines whether the transmission path response message includes the first type wireless detection terminal indicator or the second type wireless detection terminal indicator based on the identity identifier specific to the wireless detection terminal by:
establishing a corresponding relation between an identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
analyzing the received request message for establishing the transmission path by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
searching a corresponding relation based on the obtained identity identifier specific to the wireless detection terminal to obtain the number of times that the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
if the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is smaller than a preset value, judging that the transmission path response message comprises a first type wireless detection terminal indicator;
if the number of times that the wireless detection terminal with the specific identity identifier transmits the water pollution information message to the monitoring center is greater than a preset value, the transmission path response message is judged to comprise a second type wireless detection terminal indicator.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is implemented by the following steps:
analyzing the water pollution information message by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
querying, by the monitoring center, the list of identifiers to determine whether the obtained wireless detection terminal-specific identifier exists in the list of identifiers;
if the obtained identity identifier of the wireless detection terminal exists in the identity identifier list, the monitoring center updates the frequency item corresponding to the obtained identity identifier of the wireless detection terminal.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center further includes the following steps:
if the obtained identity of the wireless detection terminal does not exist in the identity list, the monitoring center adds the obtained identity of the wireless detection terminal to the list while setting the number of times item corresponding to the newly added obtained identity of the wireless detection terminal to 1.
Compared with the prior art, the invention has the following beneficial effects: with the development of wireless networks, many water pollution monitoring systems have emerged as mobile versions based on wireless networks. Some mobile monitoring systems may even include only a few mobile detection terminals and a set of software systems, and users may build any form of monitoring system through a notebook computer. However, the communication mode of the movable monitoring system in the prior art needs to be optimized: for example, current monitoring systems do not distinguish between the actual situations of the detection terminals, but require that all detection terminals need to reestablish a communication path when retransmitting to a certain extent, which results in unnecessary delays in some frequently used detection terminals when transmitting data, which affects the user experience. Aiming at the problems in the prior art, the invention provides a novel wireless network-based water pollution monitoring method, which distinguishes the actual situation of the terminal, gives larger transmission tolerance to the frequently used terminal, prevents the step of reselecting paths of the terminal as much as possible, and improves the system connection speed and the user experience.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a flow chart of a method according to an embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
FIG. 1 is a flow chart of a method according to an embodiment of the invention. As shown, the method of the present invention comprises the steps of:
step 101: collecting water pollution information by a wireless detection terminal;
step 102: transmitting a transmission path establishment request message to the monitoring center by the wireless detection terminal, wherein the transmission path establishment request message comprises an identity identifier specific to the wireless detection terminal;
step 103: receiving, by the wireless detection terminal, a set-up transmission path response message, wherein the set-up transmission path response message is sent by the monitoring center in response to receiving the set-up transmission path request message, and wherein the transmission path response message includes one of a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator;
step 104: transmitting a water pollution information message to a monitoring center by the wireless detection terminal, wherein the water pollution information message comprises an identity identifier specific to the wireless detection terminal;
step 105: judging whether the wireless detection terminal receives a water pollution information receiving confirmation response message, wherein the water pollution information receiving confirmation response message is sent by the monitoring center in response to the water pollution information receiving message;
step 106: if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, the wireless detection terminal judges whether the number of times of retransmitting the water pollution information message reaches a threshold value;
step 107: if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, a request message for establishing a transmission path is sent to the monitoring center again;
step 108: if the number of times of retransmitting the water pollution information message does not reach the threshold value, retransmitting the water pollution information message to the monitoring center;
wherein the threshold value is determined based on the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator.
Preferably, in the above technical solution, the threshold value is determined based on the following method:
analyzing, by the wireless detection terminal, the received established transmission path response message to determine whether to obtain the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator;
generating a first threshold value based on the first type wireless detection terminal indicator if the first type wireless detection terminal indicator is determined to be obtained;
generating a second threshold value based on the first type wireless detection terminal indicator if it is determined that the second type wireless detection terminal indicator is obtained;
wherein the second threshold is greater than the first threshold.
Preferably, in the above technical solution, the monitoring center determines whether the transmission path response message includes the first type wireless detection terminal indicator or the second type wireless detection terminal indicator based on the identity identifier specific to the wireless detection terminal by:
establishing a corresponding relation between an identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
analyzing the received request message for establishing the transmission path by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
searching a corresponding relation based on the obtained identity identifier specific to the wireless detection terminal to obtain the number of times that the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
if the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is smaller than a preset value, judging that the transmission path response message comprises a first type wireless detection terminal indicator;
if the number of times that the wireless detection terminal with the specific identity identifier transmits the water pollution information message to the monitoring center is greater than a preset value, the transmission path response message is judged to comprise a second type wireless detection terminal indicator.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is implemented by the following steps:
analyzing the water pollution information message by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
querying, by the monitoring center, the list of identifiers to determine whether the obtained wireless detection terminal-specific identifier exists in the list of identifiers;
if the obtained identity identifier of the wireless detection terminal exists in the identity identifier list, the monitoring center updates the frequency item corresponding to the obtained identity identifier of the wireless detection terminal.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center further includes the following steps:
if the obtained identity of the wireless detection terminal does not exist in the identity list, the monitoring center adds the obtained identity of the wireless detection terminal to the list while setting the number of times item corresponding to the newly added obtained identity of the wireless detection terminal to 1.
The invention also provides a water pollution monitoring system based on the wireless network, which is characterized in that: the water pollution monitoring system based on the wireless network comprises the following steps:
a monitoring center;
the system comprises a plurality of wireless detection terminals, a monitoring center and a wireless detection system, wherein the plurality of wireless detection terminals are in communication connection with the monitoring center and are configured to:
collecting water pollution information;
transmitting a transmission path establishment request message to a monitoring center, wherein the transmission path establishment request message comprises an identity identifier specific to the wireless detection terminal;
receiving a set-up transmission path response message, wherein the set-up transmission path response message is sent by the monitoring center in response to receiving the set-up transmission path request message, and wherein the transmission path response message includes one of a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator;
transmitting a water pollution information message to a monitoring center, wherein the water pollution information message comprises an identity identifier specific to the wireless detection terminal;
judging whether the wireless detection terminal receives a water pollution information receiving confirmation response message, wherein the water pollution information receiving confirmation response message is sent by the monitoring center in response to the water pollution information receiving message;
if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, judging whether the number of times of retransmitting the water pollution information message reaches a threshold value;
if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, a request message for establishing a transmission path is sent to the monitoring center again;
if the number of times of retransmitting the water pollution information message does not reach the threshold value, retransmitting the water pollution information message to the monitoring center;
wherein the threshold value is determined based on the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator.
Preferably, in the above technical solution, the threshold value is determined based on the following method:
analyzing, by the wireless detection terminal, the received established transmission path response message to determine whether to obtain the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator;
generating a first threshold value based on the first type wireless detection terminal indicator if the first type wireless detection terminal indicator is determined to be obtained;
generating a second threshold value based on the first type wireless detection terminal indicator if it is determined that the second type wireless detection terminal indicator is obtained;
wherein the second threshold is greater than the first threshold.
Preferably, in the above technical solution, the monitoring center determines whether the transmission path response message includes the first type wireless detection terminal indicator or the second type wireless detection terminal indicator based on the identity identifier specific to the wireless detection terminal by:
establishing a corresponding relation between an identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
analyzing the received request message for establishing the transmission path by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
searching a corresponding relation based on the obtained identity identifier specific to the wireless detection terminal to obtain the number of times that the wireless detection terminal with the specific identity identifier sends a water pollution information message to a monitoring center;
if the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is smaller than a preset value, judging that the transmission path response message comprises a first type wireless detection terminal indicator;
if the number of times that the wireless detection terminal with the specific identity identifier transmits the water pollution information message to the monitoring center is greater than a preset value, the transmission path response message is judged to comprise a second type wireless detection terminal indicator.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is implemented by the following steps:
analyzing the water pollution information message by the monitoring center to obtain an identity identifier specific to the wireless detection terminal;
querying, by the monitoring center, the list of identifiers to determine whether the obtained wireless detection terminal-specific identifier exists in the list of identifiers;
if the obtained identity identifier of the wireless detection terminal exists in the identity identifier list, the monitoring center updates the frequency item corresponding to the obtained identity identifier of the wireless detection terminal.
Preferably, in the above technical solution, establishing a correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center further includes the following steps:
if the obtained identity of the wireless detection terminal does not exist in the identity list, the monitoring center adds the obtained identity of the wireless detection terminal to the list while setting the number of times item corresponding to the newly added obtained identity of the wireless detection terminal to 1.
The various modules and circuits described in connection with the present invention may be implemented with a general purpose processor, an application specific integrated circuit, a field programmable gate array, or discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. A general purpose processor may be a microprocessor, which may be any commercially available processor, controller, microcontroller or state machine. The processor may be responsible for managing the bus and general processing, including the execution of software stored on a machine-readable medium. A processor may be implemented with one or more general-purpose and/or special-purpose processors. Whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise, software should be construed broadly to mean instructions, data, or any combination thereof. By way of example, the machine-readable medium may comprise RAM, flash memory, ROM, PROM, EPROM, EEPROM, registers, magnetic disks, optical disks, or any combination thereof. In a hardware implementation, the machine-readable medium may be part of a processing system that is separate from the processor.
The wireless link of the present invention is based on a wireless communication system including a communication system based on an orthogonal multiplexing scheme. Examples of such communication systems include Space Division Multiple Access (SDMA) systems, time Division Multiple Access (TDMA) systems, orthogonal Frequency Division Multiple Access (OFDMA) systems, and single carrier frequency division multiple access (SC-FDMA) systems. SDMA systems may utilize sufficiently different directions to simultaneously transmit data belonging to multiple user terminals. TDMA systems may allow multiple user terminals to share the same frequency channel by dividing the transmitted signal into different time slots and assigning each time slot to a different user terminal. OFDMA systems utilize Orthogonal Frequency Division Multiplexing (OFDM), which is a modulation technique that divides the overall system bandwidth into multiple orthogonal subcarriers. These subcarriers may also be referred to as tones, bins, etc. With OFDM, each subcarrier can be modulated independently with data. SC-FDMA systems may utilize Interleaved FDMA (IFDMA) to transmit on subcarriers distributed across the system bandwidth, localized FDMA (LFDMA) to transmit on blocks of adjacent subcarriers, or Enhanced FDMA (EFDMA) to transmit on multiple blocks of adjacent subcarriers. Typically, the modulation symbols are transmitted in the frequency domain in OFDM fashion and in the time domain in SC-FDMA fashion.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention 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 (2)
1. A water pollution monitoring method based on a wireless network is characterized in that: the wireless network-based water pollution monitoring method comprises the following steps:
collecting water pollution information by a wireless detection terminal;
transmitting a transmission path establishment request message to a monitoring center by the wireless detection terminal, wherein the transmission path establishment request message comprises an identity identifier specific to the wireless detection terminal;
receiving, by the wireless detection terminal, a setup transmission path response message, wherein the setup transmission path response message is sent by the monitoring center in response to receiving the setup transmission path request message, and wherein the transmission path response message includes one of a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator;
transmitting, by the wireless detection terminal, a water pollution information message to the monitoring center, wherein the water pollution information message includes the identity identifier specific to the wireless detection terminal;
judging whether the wireless detection terminal receives a water pollution information reception confirmation response message, wherein the water pollution information reception confirmation response message is sent by the monitoring center in response to receiving the water pollution information message;
if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, the wireless detection terminal judges whether the number of times of retransmitting the water pollution information message reaches a threshold value;
if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, retransmitting a request message for establishing a transmission path to a monitoring center;
if the number of times of retransmitting the water pollution information message is not up to the threshold value, retransmitting the water pollution information message to a monitoring center;
wherein the threshold value is determined based on the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator,
wherein the threshold value is determined based on the following method:
analyzing, by the wireless detection terminal, the received established transmission path response message to determine whether to obtain the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator;
generating a first threshold value based on the first type wireless detection terminal indicator if the first type wireless detection terminal indicator is obtained;
generating a second threshold value based on the first type wireless detection terminal indicator if it is determined that a second type wireless detection terminal indicator is obtained;
wherein the second threshold value is greater than the first threshold value,
wherein the monitoring center determines whether the transmission path response message includes a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator based on the identity identifier specific to the wireless detection terminal by:
establishing a corresponding relation between the identity identifier specific to the wireless detection terminal and the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center;
parsing, by the monitoring center, the received request message for establishing a transmission path to obtain the identity identifier specific to the wireless detection terminal;
searching the correspondence based on the obtained identity identifier specific to the wireless detection terminal to obtain the number of times that the wireless detection terminal with the specific identity identifier transmits a water pollution information message to the monitoring center;
if the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is smaller than a preset value, judging that the transmission path response message comprises a first type wireless detection terminal indicator;
if the number of times that the wireless detection terminal having the specific identity identifier transmits the water pollution information message to the monitoring center is greater than a predetermined value, it is determined that the transmission path response message includes a second type wireless detection terminal indicator,
wherein, the establishment of the correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is realized by the following steps:
parsing, by the monitoring center, the water pollution information message to obtain the identity identifier specific to the wireless detection terminal;
querying, by the monitoring center, an identity list to determine whether the obtained identity specific to the wireless detection terminal is present in the identity list;
if the obtained identity of the wireless detection terminal is present in the list of identities, the monitoring center updates the number of times item corresponding to the obtained identity of the wireless detection terminal,
wherein, establishing the correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center further comprises the following steps:
if the obtained identity of the wireless detection terminal does not exist in the identity list, the monitoring center adds the obtained identity of the wireless detection terminal to the list, and sets the number item corresponding to the newly added obtained identity of the wireless detection terminal to 1.
2. A wireless network-based water pollution monitoring system, characterized in that: the wireless network-based water pollution monitoring system comprises the following steps:
a monitoring center;
a plurality of wireless detection terminals in communication with the monitoring center, the wireless detection terminals configured to:
collecting water pollution information;
transmitting a transmission path establishment request message to a monitoring center, wherein the transmission path establishment request message comprises an identity identifier specific to the wireless detection terminal;
receiving a setup transmission path response message, wherein the setup transmission path response message is sent by the monitoring center in response to receiving the setup transmission path request message, and wherein the transmission path response message includes one of a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator;
transmitting a water pollution information message to the monitoring center, wherein the water pollution information message comprises the identity identifier specific to the wireless detection terminal;
judging whether the wireless detection terminal receives a water pollution information reception confirmation response message, wherein the water pollution information reception confirmation response message is sent by the monitoring center in response to receiving the water pollution information message;
if the wireless detection terminal does not receive the water pollution information receiving confirmation response message, judging whether the number of times of retransmitting the water pollution information message reaches a threshold value;
if the number of times of retransmitting the water pollution information message is judged to reach a threshold value, retransmitting a request message for establishing a transmission path to a monitoring center;
if the number of times of retransmitting the water pollution information message is not up to the threshold value, retransmitting the water pollution information message to a monitoring center;
wherein the threshold value is determined based on the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator,
wherein the threshold value is determined based on the following method:
analyzing, by the wireless detection terminal, the received established transmission path response message to determine whether to obtain the first type of wireless detection terminal indicator or the second type of wireless detection terminal indicator;
generating a first threshold value based on the first type wireless detection terminal indicator if the first type wireless detection terminal indicator is obtained;
generating a second threshold value based on the first type wireless detection terminal indicator if it is determined that a second type wireless detection terminal indicator is obtained;
wherein the second threshold value is greater than the first threshold value,
wherein the monitoring center determines whether the transmission path response message includes a first type of wireless detection terminal indicator or a second type of wireless detection terminal indicator based on the identity identifier specific to the wireless detection terminal by:
establishing a corresponding relation between the identity identifier specific to the wireless detection terminal and the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center;
parsing, by the monitoring center, the received request message for establishing a transmission path to obtain the identity identifier specific to the wireless detection terminal;
searching the correspondence based on the obtained identity identifier specific to the wireless detection terminal to obtain the number of times that the wireless detection terminal with the specific identity identifier transmits a water pollution information message to the monitoring center;
if the number of times that the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is smaller than a preset value, judging that the transmission path response message comprises a first type wireless detection terminal indicator;
if the number of times that the wireless detection terminal having the specific identity identifier transmits the water pollution information message to the monitoring center is greater than a predetermined value, it is determined that the transmission path response message includes a second type wireless detection terminal indicator,
wherein, the establishment of the correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center is realized by the following steps:
parsing, by the monitoring center, the water pollution information message to obtain the identity identifier specific to the wireless detection terminal;
querying, by the monitoring center, an identity list to determine whether the obtained identity specific to the wireless detection terminal is present in the identity list;
if the obtained identity of the wireless detection terminal is present in the list of identities, the monitoring center updates the number of times item corresponding to the obtained identity of the wireless detection terminal,
wherein, establishing the correspondence between the identity identifier specific to the wireless detection terminal and the number of times the wireless detection terminal with the specific identity identifier sends the water pollution information message to the monitoring center further comprises the following steps:
if the obtained identity of the wireless detection terminal does not exist in the identity list, the monitoring center adds the obtained identity of the wireless detection terminal to the list, and sets the number item corresponding to the newly added obtained identity of the wireless detection terminal to 1.
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